Building fixture

Abstract

Provided is a building fixture that can suppress degradation of an indoor-side frame member. According to the present invention, a building fixture that comprises a sash that holds a surface material inside a vertically and horizontally assembled frame includes a metal outdoor-side frame member, a wooden indoor-side frame member, and an attachment that is between the outdoor-side frame member and the indoor-side frame member and attaches the indoor-side frame member to the outdoor-side frame member. The attachment has a covering part that covers at least a portion of an inner circumferential end surface of the indoor-side frame member.

Description

Building materials

[0001] The present disclosure relates to building materials.

[0002] Conventionally, there has been known a fixture in which a decorative stile, which is a wooden interior stile member, is attached to the interior side of a metal stile (see, for example, Patent Document 1). The decorative stile is attached to the interior side of the metal stile by a mounting bracket that is screwed to the exterior side.

[0003] Japanese Patent Application Laid-Open No. 2004-300767

[0004] In conventional building materials, the inner edges of the wooden decorative frames are exposed, so there is a concern that condensation on the surface material will reach the decorative frame, causing it to corrode and deteriorate.

[0005] The present disclosure aims to provide a fixture that can suppress deterioration of the indoor frame member.

[0006] The present disclosure relates to a fitting comprising a shoji screen that holds a surface material inside a frame that is assembled vertically and horizontally, the frame having a metal outdoor frame member, a wooden indoor frame member, and an attachment that is arranged between the outdoor frame member and the indoor frame member and attaches the indoor frame member to the outdoor frame member, the attachment having a covering portion that covers at least a portion of the inner end face of the indoor frame member.

[0007] 1 is a front view of the fitting according to the first embodiment as viewed from the inside of the room. FIG. 1 is a vertical cross-sectional view of the fitting according to the first embodiment. FIG. 2 is a vertical cross-sectional view of the fitting according to the first embodiment, showing an enlarged view of the upper frame side of the fitting shown in FIG. 2. FIG. 2 is a vertical cross-sectional view of the fitting shown in FIG. 2, showing an enlarged view of the lower frame side. FIG. 3 is a horizontal cross-sectional view of the fitting shown in FIG. 3, showing an enlarged view of the left vertical frame side of the fitting shown in FIG. 3. FIG. 3 is a horizontal cross-sectional view of the fitting shown in FIG. 3, showing an enlarged view of the right vertical frame side of the fitting shown in FIG. 3. FIG. 3 is a vertical cross-sectional view of the fitting shown in FIG. 3, showing an enlarged view of the joint portion of the fitting shown in FIG. 3. FIG. 4 is a vertical cross-sectional view of the upper frames of the outer and inner shoji screens, showing an enlarged view of the lower frames of the outer and inner shoji screens. FIG. 4 is a horizontal cross-sectional view of the door edge frames of the outer and inner shoji screens, showing an enlarged view of the door edge frame of the inner shoji screen. FIG. 5 is a horizontal cross-sectional view of the door edge frame of the inner shoji screen, showing an enlarged view of the door edge frame inner frame. FIG. 6 is a view of the door edge frame inner frame of the inner shoji screen, seen from the front surface side. FIG. 7 is a perspective view of the door edge frame of the inner shoji screen, seen from the bottom end side. FIG. 7 is a vertical cross-sectional view showing a modified example of the mounting structure of the indoor frame member at the bottom frame. 27 is a longitudinal cross-sectional view showing a modified mounting structure for an indoor side frame member in the lower frame. FIG. 28 is a longitudinal cross-sectional view showing a modified mounting structure for an indoor side frame member in the lower frame. FIG. 29 is a longitudinal cross-sectional view showing a modified mounting structure for an indoor side frame member in the lower frame. FIG. 29 is an exploded perspective view showing an enlarged view of the upper end of the joint inner frame. FIG. 29 is an oblique view showing an enlarged view of the upper anti-vibration component of the joint inner frame. FIG. 29 is a longitudinal cross-sectional view of the joint inner frame. FIG. 29 is an enlarged view of the upper end face of the joint inner frame. FIG. 30 is an exploded perspective view showing an enlarged view of the lower end of the joint inner frame. FIG. 31 is an enlarged view of the lower anti-vibration component of the joint inner frame. FIG. 32 is an oblique view showing an enlarged view of the lower end face of the joint inner frame. FIG. 33 is an oblique view of the upper end of a joint inner frame having another upper anti-vibration component as viewed from the indoor side. FIG. 34 is an exploded perspective view showing an enlarged view of the upper end of the joint inner frame shown in FIG. 35. 31。FIG. 32 is a front view of the upper end of the joint inner frame shown in Figure 26 as viewed from the inside of the room. FIG. 33 is a perspective view of the lower end of the joint inner frame having another lower vibration prevention component as viewed from the inside of the room. FIG. 34 is an exploded perspective view showing an enlarged view of the lower end of the joint inner frame shown in Figure 30. FIG. 35 is a perspective view showing an enlarged view of the lower vibration prevention component in Figure 31. FIG. 36 is a front view of the lower end of the joint inner frame shown in Figure 30 as viewed from the inside of the room. FIG. 37 is a perspective view of the upper frame of an inner shoji screen having the joint inner frame shown in Figure 30 as viewed from the outside of the room. FIG. 38 is a perspective view of the lower frame of an inner shoji screen having the joint inner frame shown in Figure 30 as viewed from the outside of the room. FIG. 39 is a front view of the fitting relating to the second embodiment as viewed from the outside of the room.43. A front view of a fitting according to a second embodiment as seen from the inside of the room. A vertical cross-sectional view of a fitting according to a second embodiment. A horizontal cross-sectional view showing one vertical frame side of a fitting according to a second embodiment. A horizontal cross-sectional view showing the other vertical frame side of a fitting according to a second embodiment. A horizontal cross-sectional view showing one joint portion of a fitting according to a second embodiment. A horizontal cross-sectional view showing a butt joint portion of a fitting according to a second embodiment. A vertical cross-sectional view showing an enlarged upper frame of a shoji screen of a fitting according to a second embodiment. A vertical cross-sectional view showing an exploded view of a portion of the configuration of the upper frame shown in FIG. 43. A vertical cross-sectional view showing an enlarged view of the bottom frame of a shoji screen of a fitting according to a second embodiment. A vertical cross-sectional view showing an exploded view of a portion of the configuration of the bottom frame shown in FIG. 45. A horizontal cross-sectional view showing an exploded view of a portion of the configuration of the joint inner frame shown in FIG. 41. A horizontal cross-sectional view showing an enlarged view of the left side of the joint inner frame shown in FIG. 41. A horizontal cross-sectional view showing an enlarged view of the right side of the joint frame shown in FIG. 41. A horizontal cross-sectional view showing an exploded view of a portion of the configuration of the butt frame shown in FIG. 42. 59. A cross-sectional view showing an enlarged right side portion of the butt stile shown in Figure 50. A vertical cross-sectional view showing an exploded view of part of the configuration of the door end stile of the outer shoji screen shown in Figure 39. A vertical cross-sectional view showing a modified example of the upper stile shown in Figure 43. A vertical cross-sectional view showing a modified example of the lower stile shown in Figure 45. A cross-sectional view showing a modified example of the joint inner stile shown in Figure 41. A cross-sectional view showing a modified example of the butt stile shown in Figure 42. A cross-sectional view showing a modified example of the door end stile shown in Figure 39. A cross-sectional view showing one of the vertical frame sides of a sliding window equipped with two shoji screens. A perspective view showing the lower end of the joint inner stile shown in Figure 41. A perspective view showing an exploded lower end of the joint inner stile shown in Figure 59. A perspective view of the end cap in Figure 60. A plan view of the end cap in Figure 60. A perspective view of a water receiving part. A cross-sectional view taken along line II in Figure 37. A perspective view showing the upper end of the butt stile of one of the shoji screens shown in Figure 42. FIG. 63 is a perspective view showing the lower end of the butt stile of one of the shoji screens shown in FIG. 42. FIG. 64 is a perspective view showing the exploded lower end of the butt stile shown in FIG. 66. FIG. 65 is a perspective view of the end cap in FIG. 67. FIG. 66 is a plan view of the end cap in FIG. 67. FIG. 65 is a cross-sectional view taken along line J-J in FIG. 37. FIG. 66 is a perspective view of the gap adjustment part. FIG. 67 is a front view of the vertical stile with the gap adjustment part attached, as viewed from the outside of the room. FIG. 68 is a perspective view of the upper part of the butt part of the fitting relating to the second embodiment, as viewed from the outside of the room.76. FIG. 77 is a perspective view of the lower part of the butt joint of the fitting according to the second embodiment, as viewed from the outside of the room. FIG. 78 is a front view of a casement window, which is a fitting according to the third embodiment, as viewed from the outside of the room. FIG. 79 is a vertical cross-sectional view of a casement window, which is a fitting according to the third embodiment. FIG. 80 is a horizontal cross-sectional view of a casement window, which is a fitting according to the third embodiment. FIG. 81 is an enlarged view of part A in FIG. 76. FIG. 82 is an enlarged view of part B in FIG. 76. FIG. 83 is an enlarged view of part C in FIG. 77. FIG. 84 is an enlarged view of part D in FIG. 77. FIG. 85 is a front view of a fixed window, which is a fitting according to the fourth embodiment, as viewed from the outside of the room. FIG. 86 is a vertical cross-sectional view of a fixed window, which is a fitting according to the fourth embodiment. FIG. 87 is a horizontal cross-sectional view of a fixed window, which is a fitting according to the fourth embodiment. FIG. 88 is an enlarged view of part E in FIG. 83. FIG. 88 is an enlarged view of part F in FIG. 83. FIG. 89 is an enlarged view of part G in FIG. 84. FIG. 89 is an enlarged view of part H in FIG.

[0008] First Embodiment Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Figures 1 to 35 show a fitting according to a first embodiment. This fitting is a sliding window 1 attached to a rectangular opening 110 in a building skeleton 100. The sliding window 1 comprises a frame 2 attached to the opening 110, and an outer shoji screen 3 and an inner shoji screen 4 that are slidably housed inside the frame 2 in the horizontal direction. An exterior material 120a is provided on the exterior surface X1 of the building skeleton 100 on the outside of the sliding window 1, and an interior material 120b is provided on the interior surface X2 of the building skeleton 100.

[0009] Here, the directions in the figure are defined. X1 indicates the outside side of the fixture, and X2 indicates the inside side of the fixture. The X1-X2 direction indicates the projection direction of the fixture. The projection direction is the direction along the indoor-outdoor direction of the fixture. In a fixture, the surface arranged along the projection direction is defined as the projection surface. The direction perpendicular to the projection direction indicates the fixture's front direction. The projection direction is the width direction when the fixture is viewed from the front from the outside side X1 or the inside side X2. For example, the projection direction of the upper frame and upper stile and the lower frame and lower stile is the up-down direction, and the projection direction of the vertical frame and vertical stile is the left-right direction. In a fixture, the surface arranged along the projection direction is defined as the projection surface. In the projection direction, the side facing outside the frame of the frame body is defined as the outer periphery side, and the surface facing the outer periphery side is defined as the outer periphery surface. In the viewing direction, the side facing the inside of the frame body is defined as the inner periphery side, and the surface facing the inner periphery side is defined as the inner periphery surface. In the direction perpendicular to the X1-X2 direction, the direction along the direction of gravity is defined as up and down, and the direction along the width direction of the door and window is defined as left and right.

[0010] First, we will explain the frame body 2. The frame body 2 is formed by framing an upper frame 21 extending horizontally above the opening 110, a lower frame 22 extending horizontally below the opening 110, and a pair of left and right vertical frames 23, 24 extending vertically on the left and right vertical portions of the opening 110 in a rectangular shape. Frame members 130 (upper frame member 131, lower frame member 132, and vertical frame members 133, 134) are attached to the interior side X2 of the frame body 2 around all four sides in the vertical and horizontal directions.

[0011] As shown in Figure 4, the upper frame 21 is divided into an outdoor metal frame member 211 and an indoor metal frame member 212. The outdoor metal frame member 211 and the indoor metal frame member 212 are connected by a bridge member 213 made of heat insulating material such as resin. The upper frame 21 has an outdoor upper rail 21a, an indoor upper rail 21b, and an upper rail 21c for a screen door, each of which protrudes toward the lower frame 22. The screen door is not shown in the present embodiment.

[0012] The outdoor metal frame member 211 has an outer panel 211a, an inner panel 211b, an outdoor panel 211c, an indoor panel 211d, a frame mounting panel 211e, and a partition panel 211f. The frame mounting panel 211e protrudes from the indoor side X2 end of the outer panel 211a toward the outer periphery and extends along the extension direction of the upper frame 21. The partition panel 211f is formed across the outer panel 211a and the inner panel 211b and extends along the extension direction of the upper frame 21. This forms two hollow sections S1a, S1b inside the outdoor metal frame member 211 in the front-to-back direction, separated by the partition panel 211f. The outdoor upper rail 21 a protrudes inward from the position where the partition plate 211 f is provided on the inner plate 211 b. The screen upper rail 21 c protrudes inward from the outdoor side X1 end of the outdoor metal frame member 211.

[0013] The indoor side metal frame member 212 extends toward the indoor side X2 from the bridge member 213. The indoor side upper rail 21b protrudes toward the inner periphery from the end of the indoor side metal frame member 212 on the outdoor side X1.

[0014] The upper frame 21 is attached to the exterior side 100a of the building body 100 by screws 210a that penetrate the body mounting plate portion 211e from the outside X1, and is attached to the upper inner surface 110a of the opening 110 by screws 210b that penetrate the interior metal frame member 212 from the inner side.

[0015] An outdoor resin cover 214 is attached between the outdoor upper rail 21a and the indoor upper rail 21b of the upper frame 21. An indoor resin cover 215 is attached from the side surface of the indoor upper rail 21b on the indoor side X2 along the inner surface of the indoor metal frame member 212. An angle portion 216 is formed on the indoor side X2 end of the indoor resin cover 215, extending inward and toward the indoor side X2. The angle portion 216 is attached with screws 216a to the inner peripheral surface 131a of the upper frame member 131 arranged on the indoor side X2 of the upper frame 21.

[0016] As shown in Figure 5, the lower frame 22 is divided into an outdoor metal frame member 221 and an indoor metal frame member 222. The outdoor metal frame member 221 and the indoor metal frame member 222 are connected by a bridge member 223 made of heat insulating material such as resin. The lower frame 22 has an outdoor lower rail 22a, an indoor lower rail 22b, and a screen door lower rail 22c, each of which protrudes toward the upper frame 21.

[0017] The outdoor metal frame member 221 has an outer panel 221a, an inner panel 221b, an outdoor panel 221c, an indoor panel 221d, and a frame mounting panel 221e. A hollow space S2a is defined within the outdoor metal frame member 221, surrounded by the outer panel 221a, inner panel 221b, outdoor panel 221c, and indoor panel 221d. The frame mounting panel 221e protrudes outward from the indoor-side X2 end of the outer panel 221a and extends along the extension direction of the lower frame 22. The outdoor lower rail 22a protrudes inward from the inner panel 221b. The screen lower rail 22c protrudes inward from the outdoor-side X1 end of the outdoor metal frame member 221.

[0018] The indoor-side metal frame member 222 has an outer plate portion 222a, an inner plate portion 222b, an outdoor-side plate portion 222c, and an indoor-side plate portion 222d. As a result, a hollow portion S2b surrounded by the outer plate portion 222a, the inner plate portion 222b, the outdoor-side plate portion 222c, and the indoor-side plate portion 222d is formed inside the indoor-side metal frame member 222. The indoor-side lower rail 22b protrudes inward from the indoor-side X2 end of the inner plate portion 222b.

[0019] The indoor-side metal frame member 222 has an outdoor-side leg 222e that protrudes from the end of the outer panel 222a on the outdoor-side X1 side toward the outer periphery, and an indoor-side leg 222f that protrudes from the end of the outer panel 222a on the outdoor-side X1 side toward the outer periphery. An attachment piece 222g that extends toward the indoor-side X2 side is provided at the outer periphery side end of the indoor-side leg 222f.

[0020] The lower frame 22 is attached to the exterior side surface 100a of the building body 100 by a screw 220a that penetrates the body mounting plate portion 221e from the outside X1, with the exterior leg portion 222e and the interior leg portion 222f placed on the lower inner surface 110b of the opening 110, and is attached to the lower inner surface 110b of the opening 110 by a screw 220b that penetrates the mounting piece 222g from the inner side.

[0021] An outdoor resin cover 224 is attached between the outdoor lower rail 22a and the indoor lower rail 22b of the lower frame 22. An indoor resin cover 225 is attached to the side surface of the indoor lower rail 22b on the indoor side X2, along the inner plate portion 222b of the indoor metal frame member 222. An L-shaped angle portion 226 extending toward the indoor side X2 is attached to the inner peripheral end of the indoor plate portion 222d of the indoor metal frame member 222. The angle portion 226 is attached with screws 226a to the inner peripheral surface 132a of the lower frame member 132 arranged on the indoor side X2 of the lower frame 22.

[0022] As shown in Figures 6 and 7, the pair of left and right vertical frames 23, 24 each have a metal frame body 231, 241 extending in the forward direction, a frame mounting plate portion 232, 242 protruding outward from the center of the outer surface 231a, 241a of the metal frame body 231, 241 in the forward direction, and an indoor plate portion 233, 243 protruding inward from the end of the metal frame body 231, 241 on the indoor side X2. Furthermore, as shown in Figure 6, an engagement protrusion 234 protrudes outward from the inner surface 231b of the metal frame body 231 in the vertical frame 23, with which the door edge stile 33 of the outer shoji screen 3 engages when the door is closed. As shown in Figure 7, an engagement protrusion 244 protrudes outward from the inner surface 241b of the metal frame body 241 in the vertical frame 24, with which the door edge stile 43 of the inner shoji screen 4 engages when the door is closed. The body mounting plate portions 232, 242, the indoor side plate portions 233, 243, and the engaging protrusions 234, 244 extend along the extension direction of the vertical frames 23, 24.

[0023] The vertical frames 23, 24 are attached to the exterior side 100a of the building frame 100 by screws 230a, 240a that penetrate the frame mounting plate portions 232, 242 from the exterior side X1, and are attached to the inner vertical surfaces 110c, 110c of the opening 110 by screws 230b, 240b that penetrate the interior side X2 ends of the metal frame bodies 231, 241 from the inner side.

[0024] As shown in Fig. 6, a resin cover 235 is attached to the inner peripheral surface 231b of the metal frame body 231 between the outer shoji screen 3 when closed and the indoor side plate portion 233. As shown in Figs. 6 and 7, angle portions 236, 245 extending toward the indoor side X2 are provided on the indoor side plate portions 233, 243 of the vertical frames 23, 24. The angle portions 236, 245 are made of resin or metal and are attached by screws 236a, 245a to the inner surfaces 133a, 134a of the vertical frame members 133, 134 arranged on the indoor side X2 of the vertical frames 23, 24.

[0025] Next, we will explain the outer shoji screen 3 and the inner shoji screen 4. The outer shoji screen 3 is located on the outside side X1 on the inner periphery of the frame body 2, and is attached across the outside upper rail 21a of the upper frame 21 and the outside lower rail 22a of the lower frame 22. The inner shoji screen 4 is located on the inside side X2 on the inner periphery of the frame body 2, and is attached across the inside upper rail 21b of the upper frame 21 and the inside lower rail 22b of the lower frame 22.

[0026] The outer shoji screen 3 and the inner shoji screen 4 each have a surface material G held on the inner periphery of the frame body 30, 40, which is formed by assembling upper frames 31, 41, lower frames 32, 42, door end frames 33, 43, outer joint frame 34, and inner joint frame 44 into a rectangular frame assembly. The door end frames 33, 43, outer joint frame 34, and inner joint frame 44 are vertical frames arranged on the left and right sides of the outer shoji screen 3 and the inner shoji screen 4. The door end frame is a vertical frame arranged at the front of the shoji screen when it moves in the closing direction. The inner joint frame is a vertical frame arranged at the rear of the shoji screen when it moves in the closing direction. The outer joint frame and inner joint frame are arranged to overlap in the indoor / outdoor direction when the two shoji screens are closed. The outer frame is located on the exterior side X1, and the inner frame is located on the interior side X2. The panel G in this embodiment is made of double-glazed glass formed by two glass plates G1, G1 with a spacer G2 sandwiched between them. A crescent lock 45 is provided on the visible surface 44a of the inner frame 44. The outer frame 34 is provided with a crescent receiver 35 that engages with the crescent lock 45.

[0027] In this embodiment, the frames 30, 40 of the outer and inner shoji screens 3 and 4 each have a composite structure consisting of a metal interior frame member and a wooden exterior frame member. This allows the sliding window 1 to be a composite sash. Below, we will explain the structure of the upper frames 31, 41, lower frames 32, 42, end frames 33, 43, outer frame 34, and inner frame 44. However, since the upper frames 31, 41, lower frames 32, 42, and end frames 33, 43 have the same structure, we will explain them with reference to the same drawings.

[0028] As shown in Figure 9, the upper frames 31, 41 are composed of metal outdoor frame members 311, 411, resin attachments 312, 412, and wooden indoor frame members 313, 413.

[0029] The outdoor frame members 311, 411 are formed with a rectangular cross section by outdoor wall portions 311a, 411a, indoor wall portions 311b, 411b, inner wall portions 311c, 411c, and outer wall portions 311d, 411d, and have a hollow portion S11 inside.

[0030] The outdoor wall portions 311a, 411a and the indoor wall portions 311b, 411b each extend outward. Thus, the outdoor frame members 311, 411 have outdoor extension portions 311e, 411e and indoor extension portions 311f, 411f. Rail engagement grooves 311g, 411g are formed between the outdoor extension portions 311e, 411e and the indoor extension portions 311f, 411f over the entire length of the upper frame 31, 41 in the extension direction. Fin members 311h, 411h that protrude toward the indoor side X2 are attached to the outdoor extension portions 311e, 411e. The fin members 311h, 411h are made of an elastic material such as rubber. The fin members 311h, 411h abut against the outdoor upper rail 21a and the indoor upper rail 21b from the outdoor side X1, thereby ensuring airtightness in the front direction of the upper frames 31, 41.

[0031] The outdoor wall portions 311 a, 411 a extend inward. As a result, the outdoor frame members 311, 411 have outdoor support plate portions 311 i, 411 i that support the outdoor side X1 surface of the upper end of the surface material G.

[0032] Tapping holes 311j, 411j are formed in the outer wall portions 311d, 411d so as to protrude into the hollow portion S11. Screws (not shown) are driven into the tapping holes 311j, 411j to fasten the upper ends of the door end frames 33, 43, the outer frame 34, and the inner frame 44, which are arranged in a vertically-attached structure at both ends of the upper frames 31, 41. Here, the vertically-attached structure is a structure in which vertical members and horizontal members are combined so that the end faces of the horizontal members (e.g., upper frame, lower frame, upper frame, lower frame) are covered by the vertical members (e.g., vertical frame, vertical stile).

[0033] The attachments 312, 412 are arranged to cover the indoor side X2 facing surface of the outdoor frame members 311, 411 over the entire length of the upper frames 31, 41. The attachments 312, 412 are formed with a rectangular cross section by outdoor side walls 312a, 412a, indoor side walls 312b, 412b, inner side walls 312c, 412c, and outer side walls 312d, 412d, and have a hollow section S12 inside. This gives the attachments 312, 412 excellent strength.

[0034] The outdoor wall portions 312a, 412a are provided with outdoor engagement portions 312e, 412e, 312f, 412f that protrude in an L-shape toward the outdoor side X1. The outdoor engagement portions 312e, 412e are arranged on the inner peripheral ends of the outdoor wall portions 312a, 412a. The outdoor engagement portions 312f, 412f are arranged on the outer peripheral ends of the outdoor wall portions 312a, 412a. The outdoor engagement portions 312e, 412e engage with inner engagement portions 311k, 411k that protrude toward the indoor side X2 from the inner peripheral ends of the indoor wall portions 311b, 411b of the outdoor frame members 311, 411. The outdoor engaging portions 312f, 412f engage with the outer peripheral ends of the outdoor extension portions 311f, 411f of the outdoor frame members 311, 411. This allows the attachments 312, 412 to be attached so as to cover the visible surfaces of the outdoor frame members 311, 411 on the indoor side X2.

[0035] A gap 310, 410 is formed between the indoor side wall 311b, 411b of the outdoor side frame member 311, 411 and the outdoor side wall 312a, 412a of the attachment 312, 412. In the upper frame 31, 41, the gap 310, 410 and the hollow portion S12 of the attachment 312, 412 are arranged on the indoor side X2 of the metal outdoor side frame member 311, 411, so heat transfer in the forward direction is suppressed and insulation is excellent.

[0036] The indoor-side wall portion 312b, 412b extends inward. As a result, the attachment 312, 412 forms an indoor-side holding plate portion 312g, 412g that holds the indoor-side X2 surface of the upper end portion of the surface material G. The upper end portion of the surface material G is housed between the outdoor-side holding plate portion 311i, 411i and the indoor-side holding plate portion 312g, 412g via the glazing channel G3.

[0037] An indoor side engaging portion 312h, 412h that protrudes in an L shape toward the indoor side X2 is provided at the inner peripheral end of the indoor side holding plate portion 312g, 412g. An indoor side engaging portion 312i, 412i that protrudes in an L shape toward the indoor side X2 is provided at the outer peripheral end of the indoor side wall portion 312b, 412b.

[0038] The indoor frame members 313, 413 are long, flat, wooden members. Engagement grooves 3131, 4131 that engage with the indoor engagement portions 312h, 412h of the attachments 312, 412 are formed on the inner peripheral end faces 313a, 413a of the indoor frame members 313, 413, over the entire length of the indoor frame members 313, 413. Engagement grooves 3132, 4132 that engage with the indoor engagement portions 312i, 412i of the attachments 312, 412 are formed on the outer peripheral end faces 313b, 413b of the indoor frame members 313, 413, over the entire length of the indoor frame members 313, 413.

[0039] The indoor side engaging portions 312h, 412h, 312i, 412i of the attachments 312, 412 engage with the engaging grooves 3131, 4131, 3132, 4132 of the indoor side stile members 313, 413. As a result, the indoor side stile members 313, 413 are attached so as to be sandwiched from above and below by the indoor side engaging portions 312h, 412h, 312i, 412i of the attachments 312, 412.

[0040] The indoor-side engaging portions 312h, 412h, 312i, 412i cover at least a portion of the inner peripheral end faces 313a, 413a and outer peripheral end faces 313b, 413b of the indoor-side frame members 313, 413. More specifically, the indoor-side engaging portions 312h, 412h, 312i, 412i cover the outdoor-side X1 region from the indoor-side wall portions 312b, 412b of the attachments 312, 412 to the inner peripheral end faces 313a, 413a and outer peripheral end faces 313b, 413b of the indoor-side frame members 313, 413. Therefore, the inner and outer peripheral end faces of the indoor-side engaging portions 312h, 412h, 312i, 412i form covering portions 312h1, 412h1, 312i1, 412i1 that cover part of the inner peripheral end faces 313a, 413a and outer peripheral end faces 313b, 413b of the indoor-side frame members 313, 413. If necessary, an adhesive member such as double-sided adhesive tape (not shown) may be provided between the attachments 312, 412 and the indoor-side frame members 313, 413.

[0041] As shown in Figure 10, the lower frames 32, 42 are composed of metal outdoor frame members 321, 421, resin attachments 322, 422, and wooden indoor frame members 323, 423.

[0042] The outdoor frame members 321, 421 are formed with a rectangular cross section by outdoor wall portions 321a, 421a, indoor wall portions 321b, 421b, inner wall portions 321c, 421c, and outer wall portions 321d, 421d, and have a hollow portion S21 inside.

[0043] The outdoor wall portions 321a, 421a and the indoor wall portions 321b, 421b each extend outward. Thus, the outdoor frame members 321, 421 have outdoor extension portions 321e, 421e and indoor extension portions 321f, 421f. Rail engagement grooves 321g, 421g are formed between the outdoor extension portions 321e, 421e and the indoor extension portions 321f, 421f, over the entire length of the extension direction of the lower frame 32, 42. Fin members 321h, 421h that protrude toward the indoor side X2 are attached to the outdoor extension portions 321e, 421e. The fin members 321h, 421h are made of an elastic material such as rubber. The fin members 321h, 421h abut against the outdoor lower rail 22a and the indoor lower rail 22b from the outdoor side X1, thereby ensuring airtightness in the front direction of the lower frames 32, 42.

[0044] The outdoor wall portion 321 a, 421 a extends inwardly. As a result, the outdoor frame member 321, 421 has an outdoor holding plate portion 321 i, 421 i that holds the outdoor side X1 surface of the lower end of the face material G.

[0045] Tapping holes 321j, 421j are formed in the inner wall portions 321c, 421c so as to protrude toward the face material G. Screws (not shown) are driven into the tapping holes 321j, 421j to fasten the lower ends of the outer frame 34 and the inner frame 44, which are arranged vertically at both ends of the lower frames 32, 42.

[0046] Door rollers R, R that roll on the outdoor lower rail 22a and the indoor lower rail 22b of the lower frame 22 are disposed in the hollow portion S21 of the outdoor frame members 321, 421. The door rollers R, R protrude from the outdoor wall portions 312d, 421d into the rail engagement grooves 321g, 421g.

[0047] The attachments 322, 422 are arranged to cover the visible surface of the indoor side X2 of the outdoor frame members 321, 421 over the entire length of the lower frames 32, 42. The attachments 322, 422 are formed with a rectangular cross section by outdoor side walls 322a, 422a, indoor side walls 322b, 422b, indoor side walls 322c, 422c, and outdoor side walls 322d, 422d, and have a hollow section S22 inside. This gives the attachments 322, 422 excellent strength.

[0048] The outdoor wall portions 322a, 422a are provided with outdoor engagement portions 322e, 422e, 322f, 422f that protrude in an L-shape toward the outdoor side X1. The outdoor engagement portions 322e, 422e are arranged on the inner peripheral end portions of the outdoor wall portions 322a, 422a. The outdoor engagement portions 322f, 422f are arranged on the outer peripheral end portions of the outdoor wall portions 322a, 422a. The outdoor engagement portions 322e, 422e engage with inner engagement portions 321k, 421k that protrude from the inner peripheral end portions of the indoor wall portions 321b, 421b of the outdoor frame members 321, 421 toward the indoor side X2. The outdoor engaging portions 322f, 422f engage with the outer peripheral end portions of the indoor extending portions 321f, 421f of the outdoor frame members 321, 421. As a result, the attachments 322, 422 are attached so as to cover the visible surfaces of the outdoor frame members 321, 421 on the indoor side X2.

[0049] A gap 320, 420 is formed between the indoor side wall 321b, 421b of the outdoor side frame member 321, 421 and the outdoor side wall 322a, 422a of the attachment 322, 422. In the lower frame 32, 42, the gap 320, 420 and the hollow portion S22 of the attachment 322, 422 are arranged on the indoor side X2 of the metal outdoor side frame member 321, 421, so heat transfer in the forward direction is suppressed and the heat insulation is excellent.

[0050] The indoor-side wall portions 322b, 422b extend inward. As a result, the attachments 322, 422 form indoor-side holding plates 322g, 422g that hold the indoor-side X2 surface of the lower end of the face material G. The lower end of the face material G is housed between the outdoor-side holding plates 321i, 421i and the indoor-side holding plates 322g, 422g via the glazing channel G3.

[0051] An indoor side engaging portion 322h, 422h that protrudes in an L shape toward the indoor side X2 is provided at the inner peripheral end of the indoor side holding plate portion 322g, 422g. An indoor side engaging portion 322i, 422i that protrudes in an L shape toward the indoor side X2 is provided at the outer peripheral end of the indoor side wall portion 322b, 422b.

[0052] The indoor frame members 323, 423 are long, flat, wooden members. Engagement grooves 3231, 4231 that engage with the indoor engagement portions 322h, 422h of the attachments 322, 422 are formed on the inner peripheral end surfaces 323a, 423a of the indoor frame members 323, 423, over the entire length of the indoor frame members 323, 423. Engagement grooves 3232, 4232 that engage with the indoor engagement portions 322i, 422i of the attachments 322, 422 are formed on the outer peripheral end surfaces 323b, 423b of the indoor frame members 323, 423, over the entire length of the indoor frame members 323, 423.

[0053] The indoor side engaging portions 322h, 422h, 322i, 422i of the attachments 322, 422 engage with the engaging grooves 3231, 4231, 3232, 4232 of the indoor side stile members 323, 423. As a result, the indoor side stile members 323, 423 are attached so as to be sandwiched from above and below by the indoor side engaging portions 322h, 422h, 322i, 422i of the attachments 322, 422.

[0054] The indoor-side engaging portions 322h, 422h, 322i, 422i cover at least a portion of the inner peripheral end faces 323a, 423a and outer peripheral end faces 323b, 423b of the indoor-side frame members 323, 423. More specifically, the indoor-side engaging portions 322h, 422h, 322i, 422i cover the outdoor-side X1 region from the indoor-side wall portions 322b, 422b of the attachments 322, 422 to the inner peripheral end faces 323a, 423a and outer peripheral end faces 323b, 423b of the indoor-side frame members 313, 413. Therefore, the inner and outer peripheral end faces of the indoor engaging portions 322h, 422h, 322i, 422i form covering portions 322h1, 422h1, 322i1, 422i1 that cover part of the inner peripheral end faces 323a, 423a and outer peripheral end faces 323b, 423b of the indoor frame members 323, 423. If necessary, an adhesive member such as double-sided adhesive tape (not shown) may be provided between the attachments 322, 422 and the indoor frame members 323, 423.

[0055] As shown in Figure 11, the door end frames 33, 43 are composed of a metal outdoor frame member 331, 431, a resin attachment 332, 432, and a wooden indoor frame member 333, 433. The door end frame 33 of the outer shoji screen 3 and the door end frame 43 of the inner shoji screen 4 are symmetrical on the left and right.

[0056] The exterior frame members 331, 431 are formed with a rectangular cross section by exterior wall portions 331a, 431a, interior wall portions 331b, 431b, interior wall portions 331c, 431c, and exterior wall portions 331d, 431d, and have an internal hollow portion S31. The exterior wall portions 331a, 431a are formed to be recessed toward the interior side X2, and form handles for opening and closing the exterior shoji screen 3 and the interior shoji screen 4 from the exterior side X1.

[0057] The outer wall portions 331d, 431d have outdoor protrusions 331e, 431e and indoor protrusions 331f, 431f that protrude outward from the ends on the outdoor side X1 and the indoor side X2, respectively. A door-end engagement groove 331g, 431g is formed between the outdoor protrusions 331e, 431e and the indoor protrusions 331f, 431f over the entire length of the door end frame 33, 43 in the extension direction. A fin member 331h, 431h that protrudes toward the indoor side X2 is attached to the outdoor protrusion 331e, 431e. The fin member 331h, 431h is made of an elastic material such as rubber. The fin members 331h, 431h abut against the engaging protrusions 234, 244 of the vertical frames 23, 24 from the inner periphery, thereby ensuring airtightness in the front direction of the door end frames 33, 43.

[0058] The outdoor wall portion 331 a, 431 a extends inward, forming an outdoor support plate portion 331 i, 431 i in the outdoor frame member 331, 431, which supports the outdoor side X1 surface at the door-tip end of the surface material G.

[0059] The attachments 332, 432 are arranged to cover the visible surface of the outdoor frame member 331, 431 on the indoor side X2 over the entire length of the door end frame 33, 43. The attachments 332, 432 have side wall portions 332a, 432a and a hollow portion S32. The hollow portion S32 is arranged on the outdoor side X1 surface at the outer peripheral end of the side wall portion 332a, 432a, and is formed into a rectangular cross section by the inner wall portion 332b, 432b, the outer wall portion 332c, 432c, and the outdoor side wall portion 332d, 432d.

[0060] The attachments 332, 432 are provided with outdoor engagement portions 332e, 432e, 332f, 432f that protrude in an L-shape toward the outdoor side X1. The outdoor engagement portions 332e, 432e are located near the inner circumferential ends of the side wall portions 332a, 432a. The outdoor engagement portions 332f, 432f are located at the outer ends of the outdoor wall portions 332d, 432d that form the hollow portion S3. The outdoor engagement portions 332e, 432e engage with indoor engagement portions 331j, 431j that protrude from the inner circumferential ends of the indoor wall portions 331b, 431b of the outdoor frame members 331, 431 toward the indoor side X2. The outdoor engaging portions 332f, 432f engage with the outer peripheral ends of the indoor protruding portions 331f, 431f of the outdoor frame members 311, 411. This allows the attachments 332, 432 to be attached so as to cover the visible surfaces of the outdoor frame members 331, 431 on the indoor side X2.

[0061] A gap 330, 430 is formed between the indoor wall 331b, 431b of the outdoor frame member 311, 411 and the side wall 332a, 432a of the attachment 332, 432. In the door end frame 33, 43, the gap 330, 430 and the hollow portion S32 of the attachment 332, 432 are arranged on the indoor side X2 of the metal outdoor frame member 331, 431, so heat transfer in the forward direction is suppressed and insulation is excellent.

[0062] The side walls 332a, 432a extend inward. As a result, the attachments 332, 432 form indoor-side holding plates 332g, 432g that hold the indoor-side X2 surface of the door-leading end of the surface material G. The door-leading end of the surface material G is housed between the outdoor-side holding plates 331i, 431i and the indoor-side holding plates 332g, 432g via the glazing channel G3.

[0063] An indoor side engaging portion 332h, 432h that protrudes in an L shape toward the indoor side X2 is provided at the inner peripheral end of the indoor side holding plate portion 332g, 432g. An indoor side engaging portion 332i, 432i that protrudes in an L shape toward the indoor side X2 is provided at the outer peripheral end of the inner wall portion 332b, 432b.

[0064] The indoor frame members 333, 433 are long, flat, wooden members. Engagement grooves 3331, 4331 that engage with the indoor engagement portions 332h, 432h of the attachments 332, 432 are formed on the inner peripheral end surfaces 333a, 433a of the indoor frame members 333, 433, over the entire length of the indoor frame members 333, 433. Engagement grooves 3332, 4332 that engage with the indoor engagement portions 332i, 432i of the attachments 332, 432 are formed on the outer peripheral end surfaces 333b, 433b of the indoor frame members 333, 433, over the entire length of the indoor frame members 333, 433.

[0065] The indoor side engaging portions 332h, 432h, 332i, 432i of the attachments 332, 432 engage with the engaging grooves 3331, 4331, 3332, 4332 of the indoor side stile members 333, 433. As a result, the indoor side stile members 333, 433 are attached so as to be sandwiched from the left and right by the indoor side engaging portions 332h, 432h, 332i, 432i of the attachments 332, 432.

[0066] The indoor-side engaging portions 332h, 432h, 332i, 432i cover at least a portion of the inner peripheral end faces 333a, 433a and the outer peripheral end faces 333b, 433b of the indoor-side frame members 333, 433. More specifically, the indoor-side engaging portions 332h, 432h, 332i, 432i cover the outdoor-side X1 region from the side wall portions 332a, 432a of the attachments 332, 432 to the inner peripheral end faces 333a, 433a and the outer peripheral end faces 333b, 433b of the indoor-side frame members 333, 433. Therefore, the inner and outer peripheral end faces of the indoor engaging portions 332h, 432h, 332i, 432i form covering portions 332h1, 432h1, 332i1, 432i1 that cover part of the inner peripheral end faces 333a, 433a and outer peripheral end faces 333b, 433b of the indoor frame members 333, 433. If necessary, an adhesive member such as double-sided adhesive tape (not shown) may be provided between the attachments 332, 432 and the indoor frame members 333, 433.

[0067] The indoor frame members 333, 433 of the door end frames 33, 43 are integrally provided with pull handles 333c, 433c for opening and closing the outer shoji screen 3 and inner shoji screen 4. The pull handles 333c, 433c are formed long along the extension direction of the indoor frame members 333, 433 and protrude toward the indoor side X2. This improves operability for opening and closing the outer shoji screen 3 and inner shoji screen 4. The pull handles 333c, 433c are integral with the indoor frame members 333, 433, and do not have to be connected as would be the case if separate parts were attached, resulting in a good appearance. The bases 333c1, 433c1 of the pull handles 333c, 433c are formed by smoothly continuous inclined surfaces. Therefore, no excessive force is applied to the bases 333c1, 433c1 of the pull tabs 333c, 433c during opening and closing operations, and there is no risk of the pull tabs 333c, 433c being damaged over long-term use.

[0068] As shown in Figure 8, the outer frame 34 of the outer shoji screen 3 is composed of a metal frame member 341 and a resin frame member 342.

[0069] The metal frame member 341 is formed with a rectangular cross section by an outdoor wall portion 341a, an indoor wall portion 341b, an inner wall portion 341c, and an outer wall portion 341d, and has a hollow portion S41a inside.

[0070] The exterior wall portion 341a extends inward, forming an exterior support plate portion 341e in the metal frame member 341, which supports the exterior surface X1 of the joining end of the face material G.

[0071] The outer peripheral end of the indoor wall portion 341b is provided with an engaging portion 341f bent in an L-shape toward the indoor side X2 and the inner peripheral side, and a fin member 341g. The fin member 341g is made of an elastic material such as rubber. The fin member 341g abuts against the outdoor side X1 of the inner frame 44 of the inner screen 4 from the outdoor side X1, thereby ensuring airtightness in the front direction of the joint.

[0072] The resin frame member 342 is attached to the inner wall 341c of the metal frame member 341 and protrudes inward on the indoor side X2 of the panel G. The resin frame member 342 has a base 342a attached along the inner wall 341c and an indoor side support plate 342b that protrudes in an L-shape from the base 342a toward the inside and outdoor side X1. The indoor side support plate 342b supports the indoor side X2 surface at the joint side end of the panel G. The joint side end of the panel G is housed between the outdoor side support plate 341e and the indoor side support plate 342b via the glazing channel G3.

[0073] The indoor side support plate portion 342b has a hollow portion S41b that protrudes toward the indoor side X2. As shown in Figure 8, when the outer shoji screen 3 and the inner shoji screen 4 are closed, the resin frame member 342 is exposed between the surface material G of the outer shoji screen 3 and the inner frame 44 of the inner shoji screen 4. This suppresses heat transfer in the forward direction of the outer frame 34 of the outer shoji screen 3, resulting in excellent thermal insulation.

[0074] As shown in Figures 8 and 12, the inner frame 44 of the inner shoji screen 4 is composed of a metal outer frame member 441, a resin attachment 442, and a wooden inner frame member 443.

[0075] The outdoor frame member 441 has a rectangular cross section and is formed by an outdoor wall portion 441 a, an indoor wall portion 441 b, an inner wall portion 441 c, an outdoor wall portion 441 d, and a partition wall portion 441 e. The interior of the outdoor frame member 441 has two hollow portions S42 a, S42 b that are partitioned in the front direction by the partition wall portion 441 e.

[0076] The projection dimension of the joint inner frame 44 is larger than the projection dimensions of the upper frames 31, 41, lower frames 32, 42, and end frames 33, 43 of the outer shoji 3 and inner shoji 4, because the outdoor frame member 441 has two hollow portions S42a, 42b arranged side by side in the projection direction. Therefore, the joint inner frame 44 protrudes more from the surface material G toward the indoor side X2 than the upper frames 31, 41, lower frames 32, 42, and end frames 33, 43.

[0077] Specifically, as shown in Figure 13, the visible surface 44c on the indoor side X2 of the joint inner frame 44 protrudes toward the indoor side X2 beyond the positions of the ends of the upper and lower frames 21 and 22 closest to the indoor side X2, i.e., the ends of the indoor side X2 of the indoor side metal frame member 212 of the upper frame 21 and the position of the indoor side plate portion 222d of the indoor side metal frame member 222 of the lower frame 22. The joint inner frame 44 protrudes toward the indoor side X2 in the projection direction to the positions of the ends 216b, 226b on the indoor side X2 of the angle portions 216, 226 of the upper and lower frames 21 and 22. As a result, the joint inner frame 44 has an indoor side protruding portion 440 that is positioned so as to be sandwiched between the upper and lower angle portions 216, 226.

[0078] The exterior wall 441a is provided with an engagement portion 441f that is L-shaped and bent toward the exterior X1 and the inner periphery. As shown in Figure 8, the engagement portion 441f is inserted between the engagement portion 341f of the outer frame 34 and the interior wall 341b when the outer frame 3 and the inner frame 4 are closed. This forms a labyrinth-like air flow path, restricting air flow between the outer frame 34 and the inner frame 44.

[0079] The outdoor wall portion 441a extends inward, forming an outdoor support plate portion 441g in the outdoor frame member 441, which supports the outdoor side X1 surface at the joining end of the surface material G.

[0080] The indoor side wall portion 441b is formed with an engaging portion 441h that is bent in an L shape from the inner peripheral end toward the inner peripheral side and the outdoor side X1.

[0081] The attachment 442 is arranged to cover the indoor-side wall portion 441b, the inner wall portion 441c, and the outer wall portion 441d of the outdoor-side frame member 441 over the entire length in the extension direction of the inner frame joint 44. That is, the attachment 442 has an indoor-side wall portion 442a that covers the indoor-side wall portion 441b of the outdoor-side frame member 441, an inner wall portion 442b that covers the inner wall portion 441c, and an outer wall portion 442c that covers the outer wall portion 441d.

[0082] An engagement portion 442d that protrudes toward the inner periphery is formed on the inner wall portion 442b. An engagement portion 442e that protrudes toward the outer periphery is formed on the end of the outer wall portion 442c facing the outdoor side X1. The engagement portion 442d engages with the engagement portion 441h of the outdoor side frame member 441, and the engagement portion 442e engages with a protrusion 441i formed on the outer periphery end of the outdoor side wall portion 441a of the outdoor side frame member 441. In this way, the attachment 442 is attached so as to cover the visible surfaces on the inner and outer peripheries of the outdoor side frame member 441 and the visible surface on the indoor side X2.

[0083] The outdoor side X1 end of the inner wall portion 442b is bent toward the outer periphery. As a result, the attachment 442 forms an indoor side holding plate portion 442f that holds the indoor side X2 surface of the joining side end of the face material G. The inner peripheral side end of the indoor side holding plate portion 442f abuts against the inner wall portion 441c of the outdoor side frame member 441. The joining side end of the face material G is housed between the outdoor side holding plate portion 441g and the indoor side holding plate portion 442f via the glazing channel G3.

[0084] An indoor side engaging portion 442g that protrudes in an L shape toward the inner periphery and the indoor side X2 is provided at the end of the indoor side wall portion 442b on the outdoor side X1. An indoor side engaging portion 442h that protrudes in an L shape toward the outer periphery and the indoor side X2 is provided at the end of the outdoor side wall portion 442c on the outdoor side X1.

[0085] The indoor frame member 443 is divided into a first indoor frame member 4431 and a second indoor frame member 4432, each made of wood. The first indoor frame member 4431 has a shape that covers the entire indoor wall portion 442a and the inner wall portion 442b of the attachment 442 and a portion of the outer wall portion 442c. The second indoor frame member 4432 is made of a flat plate-shaped member that covers a portion of the outer wall portion 442c of the attachment 442. However, the indoor frame member 443 is not limited to having such a divided structure and may be a single piece.

[0086] As shown in Figure 13, the first indoor-side stile member 4431 is provided on the indoor-side protruding portion 440 of the joint inner stile 44. Therefore, the first indoor-side stile member 4431 is arranged so as to be sandwiched between the upper and lower angle portions 216, 226. The vertical length of the first indoor-side stile member 4431 is shorter than the vertical length of the second indoor-side stile member 4432. The vertical distance between the lower end portion 4431a2 of the first indoor-side stile member 4431 and the angle portion 226 of the lower frame 22 is shorter than the vertical distance between the upper end portion 4431a1 of the first indoor-side stile member 4431 and the angle portion 216 of the upper frame 21. Therefore, when the inner frame 44 is viewed from the indoor side X2, the lower end of the inner frame 44 is difficult to see, and the user is strongly impressed with the texture of the wooden indoor frame member 443, resulting in a highly aesthetic design.

[0087] The boundary La where the first indoor-side frame member 4431 and the second indoor-side frame member 4432 butt together is located on the outer wall portion 442c of the attachment 442 and extends along the extension direction of the joint inner frame 44. The boundary La is located on the indoor side X2 of the panel G. As shown in FIG. 12 , the boundary La is formed by butting together two inclined surfaces and is positioned so as to intersect obliquely with the projection direction. That is, the positions of the outer peripheral edge La1 and the inner peripheral edge La2 of the boundary La are offset in the projection direction. Therefore, even if a dimensional change in the projection direction occurs between the first indoor-side frame member 4431 and the second indoor-side frame member 4432 due to shrinkage or other factors, and the gap at the boundary La becomes larger, the attachment 442 inside is difficult to see through the gap.

[0088] An engagement groove 443a1 that engages with the indoor side engagement portion 442g on the inner side of the attachment 442 is formed over the entire length of the indoor side stile member 443 at the outdoor side X1 end of the inner peripheral end face 443a of the indoor side stile member 443. An engagement groove 443b1 that engages with the indoor side engagement portion 442h on the outer peripheral side of the attachment 442 is formed over the entire length of the indoor side stile member 443 at the outdoor side X1 end of the outer peripheral end face 443b of the indoor side stile member 443. As a result, the indoor side stile member 443 is attached so that it is sandwiched from the left and right by the indoor side engagement portions 442g, 442h of the attachment 442.

[0089] The indoor-side engaging portion 442g covers at least a portion of the inner peripheral end surface 443a of the indoor-side stile member 443. More specifically, the indoor-side engaging portion 442g covers the outdoor-side X1 region of the inner peripheral end surface 443a of the indoor-side stile member 443 from the surface material G side. Therefore, the inner peripheral end surface of the indoor-side engaging portion 442g forms a covering portion 442g1 that covers a portion of the inner peripheral end surface 443a of the indoor-side stile member 443. If necessary, an adhesive member such as double-sided adhesive tape (not shown) may be provided between the attachment 442 and the indoor-side stile member 443.

[0090] The upper frames 31, 41, lower frames 32, 42, end frames 33, 43, outer frame 34, and inner frame 44 configured as described above are assembled vertically into a rectangle to form the frame bodies 30, 40 so that the upper frames 31, 41 and lower frames 32, 42 are positioned between the end frames 33, 43 and the outer frame 34 and inner frame 44. At this time, the indoor frame members 313, 323, 333, 413, 423, 433, 443 of each frame are also assembled vertically into a rectangle.

[0091] Figure 14 shows the connection between the bottom frame 42 and the door end frame 43 in the inner shoji screen 4. The boundary Lb between the indoor frame members 423, 433 assembled by vertical insertion is constructed by butting inclined surfaces, similar to the boundary La between the first indoor frame member 4431 and the second indoor frame member 4432 of the joint inner frame 44. Therefore, even if a dimensional change in the visible direction due to shrinkage or other factors occurs between the indoor frame member 423 of the bottom frame 42 and the indoor frame member 433 of the door end frame 43, causing the gap at boundary Lb to become larger, it is difficult to visually see the interior through that gap. This boundary configuration, where inclined surfaces butt together, is similarly applied to all boundaries between indoor frame members in the outer shoji screen 3 and the inner shoji screen 4.

[0092] By constructing the frame bodies 30, 40, the respective attachments 312, 322, 332, 412, 422, 432, 442 and the indoor frame members 313, 323, 333, 413, 423, 433, 443 in the outer shoji 3 and inner shoji 4 are also arranged to surround the outer periphery of the surface material G all around. In this case, in particular, a portion of the inner peripheral end faces 313a, 323a, 333a, 413a, 423a, 433a, 443a of the indoor side frame members 313, 323, 333, 413, 423, 433, 443 is covered all around by the cover portions 312h1, 322h1, 332h1, 412h1, 422h1, 432h1, 442g1 of the attachments 312, 322, 332, 412, 422, 432, 442. Therefore, even if condensation occurs on the indoor side X2 surface of the face material G, the indoor side frame members 313, 323, 333, 413, 423, 433, 443 are less likely to come into contact with the condensed water, and deterioration due to contamination or corrosion caused by the condensed water is suppressed. In particular, even if condensation water flows down the surface of the surface material G, it remains on the cover portions 322h1, 422h1 of the attachments 322, 422 of the lower frames 32, 42, and there is little risk of it spreading onto the inner end faces 323a, 423a of the indoor frame members 323, 423.

[0093] The shape of the covering portion of attachments 312, 322, 332, 412, 422, 432, and 442 is not limited to that shown in Figures 9 to 12, and can be formed into various shapes to more effectively prevent condensation water from wetting and spreading onto the indoor frame members 313, 323, 333, 413, 423, 433, and 443.

[0094] 15 to 18 show modified examples of the cover portions of the attachments 322, 422 in the lower frames 32, 42. The configuration other than the cover portions is the same as that of the lower frames 32, 42 shown in FIG.

[0095] The cover portions 322h2, 422h2 shown in Figure 15 have inclined surfaces that slope from the indoor side X2 toward the outdoor side X1 toward the outer periphery of the frame body 30, 40. That is, the surfaces of the cover portions 322h2, 422h2 of the lower frame 32, 42 slope downward from the indoor side X2 toward the outdoor side X1. This makes it difficult for condensation water that flows down the lower frame 32, 42 to flow over the cover portions 322h2, 422h2 to the indoor side X2. While Figure 15 illustrates an example in which a portion of the cover portions 322h2, 422h2 protrudes inward from the indoor side frame member 323, 423, the cover portions 322h2, 422h2 do not have to protrude inward from the indoor side frame member 323, 423. In other words, the entire indoor side X2 of the cover portion 322h2, 422h2 may be covered by the indoor side frame member 323, 423 so as not to be visible from the indoor side X2.

[0096] The cover portions 322h3, 422h3 shown in Figure 16 have ribs LB. The ribs LB are located at the ends of the cover portions 322h3, 422h3 on the indoor side X2 and protrude inward. That is, the cover portions 322h3, 422h3 of the lower frames 32, 42 have ribs LB that rise upward. This also effectively prevents condensation water that has flowed down the lower frames 32, 42 from overflowing the cover portions 322h2, 422h2 and flowing out to the indoor side X2. While Figure 16 illustrates an example in which a portion of the cover portions 322h3, 422h3 protrudes inward beyond the indoor frame members 323, 423, the cover portions 322h3, 422h3 do not necessarily have to protrude inward beyond the indoor frame members 323, 423. In other words, the entire indoor side X2 of the cover portion 322h3, 422h3 may be covered by the indoor side frame member 323, 423 so as not to be visible from the indoor side X2.

[0097] 17 is formed by a recessed groove. That is, the cover portions 322h4, 422h4 of the lower frames 32, 42 are formed as grooves recessed downward. In this case, condensation water that flows down the lower frames 32, 42 can be temporarily stored within the cover portions 322h4, 422h4. Therefore, even if a large amount of condensation water is generated, it is even less likely to flow to the indoor side X2 than the cover portions 322h4, 422h4.

[0098] 18 covers the entire inner peripheral end surfaces 323a, 423a of the indoor side frame members 323, 423. Therefore, there is no risk that the indoor side frame members 323, 423 will come into direct contact with condensation water that has flowed down to the lower frames 32, 42.

[0099] The configurations of the cover portions 322h2, 422h2 to 322h5, 422h5 shown in Figures 15 to 18 can also be similarly applied to the cover portions of the attachments 312, 412, 332, 432, 442 of the upper frames 31, 41, the end frames 33, 43, and the inner frame 44, if necessary.

[0100] End caps are attached to the upper and lower ends of the outer frame 34 of the outer shoji screen 3 and the inner frame 44 of the inner shoji screen 4. The end caps are, for example, anti-vibration parts that suppress the vibration of the shoji screen. The anti-vibration parts are provided at the upper and lower ends of the shoji screen and are arranged on either side of the guide rail to suppress the shoji screen from moving in the indoor / outdoor directions due to wind pressure, etc. Figures 13 and 19 to 22 show an upper anti-vibration part 41006 attached to the upper end of the inner frame 44 of the inner shoji screen 4. Figures 13, 21, and 23 to 25 show lower anti-vibration parts 4200 / 4200 attached to the lower end of the inner frame 44. The upper and lower anti-vibration components 4100 and 4200 are both made of resin and are made of a different material from the wooden indoor frame member 443 that forms the indoor side X2 surface of the joint inner frame 44. The upper and lower anti-vibration components 4100 and 4200 will be described below.

[0101] The upper anti-vibration component 4100 is inserted into and attached to the upper end opening 44d1 of the joint inner frame 44. The upper anti-vibration component 4100 has an anti-vibration component main body 4110, an end plate portion 4120, a sight plate portion 4130, and an upper end sealing plate portion 4140.

[0102] The anti-vibration component body 4110 has a planar shape corresponding to the planar shape of the inner frame 44. The anti-vibration component body 4110 abuts against and covers the inner frame 44 from above, so that it is exposed at the upper end of the inner frame 44, as shown in FIG. 13 . The anti-vibration component body 4110 has a groove 4111 that opens to the upper surface 4110a. The groove 4111 is U-shaped in cross section, extends left and right of the inner frame 4 along the extension direction of the upper frame 41, and penetrates the anti-vibration component body 4110 left and right. As shown in FIG. 13 , the groove 4111 engages with the indoor upper rail 21b of the upper frame 21 when the inner frame 4 is installed within the frame body 2. A plurality of locking plates 4112 protrude downward from the underside of the anti-vibration component body 4110. As shown in Figure 20, the anti-vibration component main body 4110 has a locking claw portion 4113 on the underside, located on the outside side X1 and on the visible surface 44a side of the joint inner frame 44.

[0103] The end plate portion 4120 has a semicircular lower end and extends downward along the depth direction of the groove portion 4111 from the anti-vibration component main body 4110, which is exposed on the visible surface 44a of the joint inner stile 44. The groove portion 4111 penetrates the end plate portion 4120 and opens to the visible surface 44a of the joint inner stile 44. Two openings 4121, 4122 are formed in the end plate portion 4120, one above the other. The upper opening 4121 is a hole through which a screw SC1 is inserted to secure the exterior stile member 441 of the joint inner stile 44 to the exterior stile member 411 of the upper stile 41. The screw SC1 is a fastener that secures the vertical and horizontal stiles together. The screw SC1 is inserted through the opening 4121, passes through a screw hole 441c1 formed in the upper end of the inner wall portion 441c of the outdoor frame member 441, and is screwed into a tapping hole 411j formed in the outdoor frame member 411 of the upper frame 41. A blind cap 4120a is attached to each of the two openings 4121, 4122.

[0104] The sight plate portion 4130 extends downward along the indoor side X2 surface of the sway prevention component main body 4110. The sight plate portion 4130 is exposed from the upper end of the joint inner frame 44 and forms the indoor side X2 sight surface of the sway prevention component 4100. The left-right width of the sight plate portion 4130 corresponds to the left-right width of the indoor side X2 sight surface 44c of the joint inner frame 44.

[0105] The upper end sealing plate portion 4140 is made of a rectangular plate-like member and protrudes from the lower end of the sight plate portion 4130 toward the indoor side X2. The outer shape of the upper end sealing plate portion 4140 corresponds to the planar shape of the rectangular upper end opening 4431c1 that opens at the upper end of the first indoor side stile member 4431 in the joint inner stile 44. The upper end sealing plate portion 4140 has a rectangular flat plate portion 4141641 and a rising portion 4142 that rises downward from the flat plate portion 4141 along the outer periphery of the flat plate portion 4141.

[0106] As shown in Figure 21, the upper sway prevention component 4100 has multiple locking plates 4112 that are inserted into the upper end opening 44d1 from above the inner stile 44. The multiple locking plates 4112 clamp the partition wall portion 441e of the outdoor frame member 441. The locking claw portion 4113 locks onto the protrusion 441i located at the outdoor side X1 end of the outdoor frame member 441. In this way, the upper sway prevention component 4100 is attached to the upper end of the inner stile 44.

[0107] 13 and 19, U-shaped cutouts 441j, 4432a capable of accommodating the end plate 4120 are formed at the upper end of the outer wall 441d of the outdoor-side stile member 441 and the upper end of the second indoor-side stile member 4432 in the joint inner stile 44. When the upper anti-vibration component 4100 is attached to the joint inner stile 44, the end plate 4120 is accommodated in the cutouts 441j, 4432a and is exposed to the visible surface 44a of the joint inner stile 44.

[0108] As shown in Figures 21 and 22, the upper end sealing plate portion 4140 is inserted into the upper end opening 4431c1 of the first indoor-side frame member 4431. The upper end sealing plate portion 4140 is arranged flush with the upper end surface 4431d1 of the first indoor-side frame member 4431 and seals the upper end of the outdoor-side frame member 441. This prevents dust and other particles from entering the indoor-side frame member 443. As shown in Figure 21, the rising portion 4142 of the upper end sealing plate portion 4140 abuts against the upper end 442i1 of the attachment 442 from above within the upper end opening 4431c1 of the first indoor-side frame member 4431.

[0109] 13 and 19, the visible surface 44a of the joint inner frame 44 has end extensions 44a1, 44a1 extending on both sides of the position of the screw SC1. The end extensions 44a1, 44a1 extend to the exterior side X1 and the interior side X2 of the openings 4121, 4122 of the end plate portion 4120. More specifically, the visible surface 44a of the joint inner frame 44 has a pair of end extensions 44a1, 44a1 extending along the visible surface 44a toward the outer periphery (upward) of the frame body 40 so as to sandwich the end plate portion 4120 exposed in the cutout portion 4432a from the exterior side X1 and the interior side X2. The pair of end extensions 44a1, 44a1 extend toward the outer periphery (upward) of the frame 40, higher than the height of the upper opening 4121 of the end plate 4120, i.e., the height of the screw fastening point by the screw SC1. As a result, only the protrusion 4114 of the upper sway brace component 4100 and the end plate 4120 with the concealing cap 4120a attached are visible at the upper end of the projection surface 44a, as shown in FIG. 13. The projection surface 44a of the joint inner frame 44 is not covered by the upper sway brace component 4100. Furthermore, as shown in FIG. 13, the sway brace component body 4110 of the upper sway brace component 4100 is positioned outside (upward) the position of the angle portion 216, which is the inner circumferential end position of the upper frame 21 on the innermost side X2 of the room. Therefore, the upper sway brace component 4100 is less noticeable, resulting in excellent design. Since the concealing cap 4120a is attached to the end plate portion 4120 of the upper anti-vibration part 4100, it is less susceptible to dimensional changes in the opening due to shrinkage, etc., compared to when an opening is made in the wooden outdoor frame member 441 and the concealing cap 4120a is attached.

[0110] As shown in Figure 22, the anti-vibration component main body 4110 has a protrusion 4114 that protrudes a predetermined protrusion amount D beyond the projection surface 44a of the inner frame 44. As shown in Figure 13, the protrusion 4114 is arranged on the same plane as the projection surface 44a of the inner frame 44 when the upper anti-vibration component 4100 is attached to the inner frame 44. The protrusion 4114 protrudes beyond the projection surface 44a of the inner frame 44 on the outer periphery (upper side) of the pair of end extension portions 44a1, 44a1. When the inner shoji screen 4 moves in the opening direction, the protrusion 4114 abuts against an upper stopper member (not shown) arranged at the corner between the upper frame 21 and the vertical frame 23. This prevents the second indoor frame member 4432, which forms the projection surface 44a, from coming into direct contact with the upper stopper member, so that even if the inner shoji screen 4 collides with the vertical frame 23 with force, there is no risk of the upper end of the indoor frame member 443 being damaged.

[0111] The lower anti-vibration component 4200 is inserted into and attached to the lower end opening 44d2 of the joint inner frame 44. The lower anti-vibration component 4200 has an anti-vibration component main body 4210, an end plate portion 4220, and a condensation water tray 4230.

[0112] Like the anti-vibration component body 4110 of the upper anti-vibration component 4100, the anti-vibration component body 4210 has a planar shape corresponding to the planar shape of the inner stile 44. The anti-vibration component body 4210 abuts against and covers the inner stile 44 from below, so that it is exposed at the lower end of the inner stile 44, as shown in FIG. 13 . The anti-vibration component body 4210 has a groove 4211 that opens to the lower surface 4210a. The groove 4211 is formed in a downward U-shape in cross section, extends left and right in the inner stile 4 along the extension direction of the lower stile 42, and penetrates the anti-vibration component body 4210 left and right. As shown in FIG. 13 , the groove 4211 engages with the indoor lower rail 22b of the lower frame 22 when the inner stile 4 is installed within the frame body 2. A plurality of locking plates 4212 protrude upward from the upper surface of the anti-vibration component main body 4210. As shown in Fig. 24, the anti-vibration component main body 4210 has locking claw portions 4213 on the upper surface side on the outdoor side X1 and on the projection surface 44a side of the inner joint frame 44. As shown in Figs. 23 and 25, drainage holes 4214 are formed on the lower surface 4210a of the anti-vibration component main body 4210 to drain condensation water received in the anti-vibration component main body 4210 onto the lower frame 22. A plurality of drainage holes 4214 are provided on the lower surface 4210a, with groove portions 4211 sandwiched between them.

[0113] The end plate portion 4220 has a semicircular upper end and extends upward along the depth direction of the groove portion 4211 from the anti-vibration component main body 4210, which is exposed on the visible surface 44a of the joint inner stile 44. The groove portion 4211 penetrates the end plate portion 4220 and opens to the visible surface 44a of the joint inner stile 44. Two openings 4221, 4222 are formed in the end plate portion 4220, one above the other. The upper opening 4221 is a hole through which a screw SC2 is inserted to secure the exterior stile member 441 of the joint inner stile 44 to the exterior stile member 421 of the lower stile 42. The screw SC2 is a fastener that secures the vertical and horizontal stiles together. As shown in Figures 21 and 23, the screw SC2 passes through the opening 721 and a threaded hole 441d1 formed in the lower end of the outer wall portion 441d of the outer stile member 441, and is screwed into a tapping hole 421j formed in the outer stile member 421 of the lower stile 42. The lower opening 4222 is a hole through which an adjustment tool is inserted when adjusting the door roller R provided on the lower stile 42. As shown in Figures 21 and 23, insertion holes 441c2, 441d2 through which the adjustment tool is inserted are formed in the lower ends of the inner wall portion 441c and the outer wall portion 441d of the outer stile member 441. A blind cap 4220a is attached to each of the two openings 4221, 4222.

[0114] The condensation water tray 4230 is a tray made of a rectangular plate-shaped member. Similar to the upper sealing plate portion 4140 of the upper anti-vibration component 4100, the condensation water tray 4230 protrudes from the upper end of the indoor side X2 surface of the anti-vibration component main body 4210 toward the indoor side X2. The external shape of the condensation water tray 4230 corresponds to the planar shape of the rectangular lower end opening 4431c2 that opens at the lower end of the first indoor side stile member 4431 of the joint inner stile 44. The condensation water tray 4230 has a rectangular receiving surface portion 4231 and a rising portion 4232 that rises upward from the receiving surface portion 4231 along the outer periphery of the receiving surface portion 4231. The receiving surface portion 4231 is formed by an inclined surface that slopes downward from the indoor side X2 toward the outdoor side X1. As shown in Figure 24, the end 4231a of the receiving surface portion 4231 on the outdoor side X1 does not have a raised portion 4232, and is open toward the inside of the vibration prevention component main body 4210.

[0115] As shown in Figure 21, the lower anti-vibration component 4200 has multiple locking plates 4212 inserted into the lower end opening 44d2 from below the inner stile 44. The multiple locking plates 4231 clamp the partition wall portion 441e of the exterior stile member 441. The locking claw portion 4213 locks onto the protrusion 441i located at the end of the exterior stile member 441 on the exterior side X1. In this way, the lower anti-vibration component 4200 is attached to the lower end of the inner stile 44.

[0116] 13 and 23, a U-shaped cutout 4432b capable of accommodating the end plate 4220 is formed at the lower end of the second indoor stile member 4432 in the joint inner stile 44. As shown in Fig. 23, the cutout 4432b faces the screw hole 441d1 and the insertion hole 441d2 formed in the outer wall portion 441d of the outdoor stile member 441. When the lower vibration prevention component 4200 is attached to the joint inner stile 44, the end plate 4220 is accommodated in the cutout 4432b and is exposed to the visible surface 44a of the joint inner stile 44.

[0117] As shown in Figures 21 and 25, the condensation water tray 4230 is inserted into the lower end opening 4431c2 of the first indoor-side frame member 4431. The entire receiving surface 4231 and rising portion 4232 of the condensation water tray 4230 are not exposed to the indoor side X2. In other words, the indoor side X2 of the receiving surface 4231 and rising portion 4232 of the condensation water tray 4230 faces the visible surface 44c of the inner frame 44 (is covered by the visible surface 44c) and is configured to be invisible from the indoor side X2. The condensation water tray 4230 is disposed flush with the lower end surface 4431d2 of the first indoor-side frame member 4431 and seals the lower end of the outdoor frame member 441. Therefore, the condensation water tray 4230 also functions as a lower end sealing plate that seals the lower end of the outdoor frame member 441. As shown in Figure 21, the rising portion 4232 of the condensation water receiver 4230 abuts from below against the lower end 442i2 of the attachment 442 within the lower end opening 4431c2 of the first indoor side frame member 4431.

[0118] As shown in Figure 21, the indoor side surface 441b1 of the indoor wall portion 441b of the outdoor frame member 441 is positioned above the receiving surface portion 4231 on the outdoor side X1, higher than the rising portion 4232 of the condensation water receiver 4230. That is, the receiving surface portion 4231 is positioned on the lower end side of the outdoor frame member 441 and protrudes toward the indoor side X2 beyond the indoor side surface 441b1 of the outdoor frame member 441. Therefore, the receiving surface portion 4231 can receive condensation water that has formed on and flowed down the indoor side surface 441b1 of the indoor wall portion 441b. The condensation water received by the receiving surface portion 4231 flows from the inclined receiving surface portion 4231 into the anti-vibration component main body 4210 and is then drained onto the lower frame 22 through the drainage holes 4214 opening on the lower surface 4210a of the anti-vibration component main body 4210. Because the condensation water receiver 4230 receives condensation water on the outdoor side X1 rather than the attachment 442, the condensation water does not come into contact with the outdoor side X1 surface of the indoor side frame member 443. Therefore, there is no risk of the indoor side frame member 443 being soiled or deteriorated due to corrosion or the like by the condensation water. Note that the water received by the receiving surface portion 4231 of the condensation water receiver 4230 is not limited to condensation water, but also includes water such as rainwater adhering to the indoor side surface 441b1 of the indoor side wall portion 441b.

[0119] As shown in Figures 13 and 23, the visible surface 44a of the joint inner frame 44 has a pair of end extensions 44a2, 44a2 extending along the visible surface 44a toward the outer periphery (downward) of the frame body 40, sandwiching the end plate portion 4220 exposed in the cutout portion 4432b from the exterior side X1 and the interior side X2. The pair of end extensions 44a2, 44a2 extend toward the outer periphery (downward) of the frame body 40 above the height position of the upper opening 4221 of the end plate portion 4220, i.e., the height position of the screw fastening point by the screw SC2. As a result, at the lower end of the visible surface 44a, only the protrusion 4215 of the lower vibration prevention component 4200 and the end plate portion 4220 with the blind cap 4220a attached are visible, as shown in Figure 13. 13, the vibration-preventing component body 4210 of the lower vibration-preventing component 4200 is positioned further outward (lower) than the angle portion 226, which is the innermost peripheral end position on the indoor side X2 of the lower frame 22. This makes the lower vibration-preventing component 4200 less noticeable, resulting in excellent design. The concealing cap 4220a is attached to the end plate portion 4220 of the lower vibration-preventing component 4200, and is therefore less susceptible to dimensional changes in the opening due to shrinkage, etc., compared to when an opening is provided in the wooden outdoor frame member 441 and the concealing cap 4220a is attached.

[0120] Furthermore, as shown in Figure 13, the joint inner frame 44 has an interior protrusion 440 that is positioned so as to be sandwiched between the upper and lower angle portions 216, 226. The visible surface 44c of the joint inner frame 44 on the interior side X2, which is the visible surface of the interior protrusion 440, extends to the same position as the lower ends of the end extensions 44a2, 44a2. As a result, the lower end 4431a2 of the first interior frame member 4431, which is the surface material of the interior protrusion 440, is close to the angle portion 226 of the lower frame 22 with a small gap between it and the angle portion 226. When the joint inner frame 44 is observed from the interior side X2, the lower vibration prevention component 4200 is hidden by the visible surface 44c and is difficult to see, so it does not detract from the impression created by the texture of the wooden interior frame member 443 and further enhances the design.

[0121] As shown in Figure 25, the anti-vibration component body 4210, like the anti-vibration component body 4110 of the upper anti-vibration component 4100, has a protruding portion 4215 that protrudes from the projection surface 44a of the joint inner frame 44 by a predetermined protrusion amount D. As shown in Figure 13, the protruding portion 4215 is arranged on the same plane as the projection surface 44a of the joint inner frame 44 when the lower anti-vibration component 4200 is attached to the joint inner frame 44. The protruding portion 4215 protrudes from the projection surface 44a of the joint inner frame 44 on the outer periphery (lower side) of the pair of end extension portions 44a2, 44a2. When the inner shoji screen 4 moves in the opening direction, the protruding portion 4215 abuts against a lower stopper member (not shown) arranged at the corner between the lower frame 22 and the vertical frame 23. This prevents the second indoor frame member 4432, which forms the projection surface 44a, from directly contacting the lower stopper member, so that even if the inner shoji screen 4 collides with the vertical frame 23 with force, there is no risk of the lower end of the indoor frame member 443 being damaged.

[0122] Figures 26 to 33 show other examples of end caps attached to the inner frame 44 of the inner shoji screen 4. These end caps also consist of anti-vibration components. Figures 26 to 29 show an upper anti-vibration component 5100 attached to the upper end of the inner frame 44. Figures 30 to 33 show a lower anti-vibration component 5200 attached to the lower end of the inner frame 44. Like the upper anti-vibration component 4100 and the lower anti-vibration component 4200 described above, the upper anti-vibration component 5100 and the lower anti-vibration component 5200 are both made of resin and are made of a different material from the wooden indoor frame member 443 that forms the indoor side X2 surface of the inner frame 44. The upper anti-vibration component 5100 and the lower anti-vibration component 5200 will be described below.

[0123] The upper anti-vibration part 5100 attached to the upper end opening 44d1 of the joint inner frame 44 has an anti-vibration part main body 5110, an end plate portion 5120, an outdoor side sight plate portion 5130, an indoor side sight plate portion 5140, and an upper end sealing plate portion 5150.

[0124] The anti-vibration component body 5110 has a planar shape corresponding to the planar shape of the joint inner stile 44. Unlike the anti-vibration component body 41101 of the anti-vibration component 4100, the anti-vibration component body 5110 is formed in the shape of a thin, flat plate with a small thickness in the vertical direction. The anti-vibration component body 5110 is positioned at the upper end of the joint inner stile 44 by abutting against and covering the joint inner stile 44 from above, as shown in FIG.

[0125] The anti-vibration component main body 5110 has a groove 5111 that opens to the upper surface 5110a. The groove 5111 is U-shaped in cross section, extends left and right of the inner shoji screen 4 along the extension direction of the upper frame 41, and penetrates the anti-vibration component main body 5110 left and right. Similar to the anti-vibration component main body 4110 of the anti-vibration component 4100, the groove 5111 engages with the indoor upper rail 21b of the upper frame 21 when the inner shoji screen 4 is housed within the frame body 2. As shown in Figure 28, a plurality of locking plates 5112 protrude downward from the underside of the anti-vibration component main body 5110.

[0126] The end plate portion 5120 has a semicircular lower end and extends downward along the depth direction of the groove portion 5111 from the end of the anti-vibration component main body 5110 exposed on the visible surface 44a of the joint inner stile 44. The groove portion 5111 penetrates the end plate portion 5120 and opens to the visible surface 44a of the joint inner stile 44. An opening portion 5121 is formed in the end plate portion 5120 below the groove portion 5111. The opening portion 5121 is a hole through which a screw SC11 is inserted to secure the anti-vibration component 5100 to the exterior stile member 411 of the upper stile 41. The screw SC11 is a fastener that secures the vertical and horizontal stiles together. The screw SC11 is inserted through the opening 5121, passes through a screw hole 441c1 formed in the upper end of the inner wall portion 441c of the outdoor frame member 441 (see Figure 21), and is screwed into a tapping hole 411j formed in the outdoor frame member 411 of the upper frame 41. A blind cap 5120a is attached to the opening 5121.

[0127] The outdoor spotting plate 5130 extends downward from the end 5110b on the outdoor side X1 of the vibration prevention device main body 5110. As shown in Figure 28, the outdoor spotting plate 5130 is arranged in approximately half of the area on the visible surface 44a side of the joint inner stile 44 at the end 5110b on the outdoor side X1 of the vibration prevention device main body 5110. The outdoor spotting plate 5130 is continuous with and arranged approximately flush above the outdoor end surface 442j exposed to the outdoor side X1 of the attachment 442 of the joint inner stile 44 shown in Figure 12, and is also arranged approximately flush alongside the outer periphery in the visible direction of the outdoor wall portion 441a of the outdoor stile member 441 of the joint inner stile 44.

[0128] The indoor side sight plate 5140 extends downward from the indoor side X2 end of the anti-vibration component main body 5110. The indoor side sight plate 5140 is exposed at the upper end of the joint inner frame 44 and forms the indoor side X2 sight surface of the anti-vibration component 5100. The left-right width of the indoor side sight plate 5140 corresponds to the left-right width of the outdoor side frame member 441 of the joint inner frame 44. The end 5110c of the anti-vibration component main body 5110 located on the vertical frame 23 side, i.e., the end 5110c located on the projection surface 44a side of the joint inner frame 44, protrudes further toward the vertical frame 23 (left side in FIG. 29 ) than the indoor side sight plate 5140, as shown in FIG.

[0129] The upper end sealing plate portion 5150 is made of a rectangular flat plate and protrudes from the lower end of the indoor side sight plate portion 51404 toward the indoor side X2. The outer shape of the upper end sealing plate portion 5150 corresponds to the planar shape of the rectangular upper end opening 4431c1 that opens at the upper end of the first indoor side stile member 4431 in the joint inner stile 44. As shown in Figure 28, an engagement plate 5151 that engages with the upper end opening 4431c1 protrudes downward from the underside of the upper end sealing plate portion 5150.

[0130] As shown in Figure 27, the upper anti-vibration component 5100 is attached to the upper end of the joint inner stile 44 by inserting the locking plate 5112 into the upper end opening 44d1 from above the joint inner stile 44 and inserting the engagement plate 5151 into the upper end opening 4431c1. The locking plate 5112 clamps the partition wall portion 441e of the exterior stile member 441. The engagement plate 5151 engages with the upper end opening 4431c1. The end plate portion 5120 is accommodated in the cutout portions 441j, 4432a facing the visible surface 44a of the joint inner stile 44 and is exposed at the visible surface 44a of the joint inner stile 44. The upper vibration prevention part 5100 is fixed to the outdoor frame member 411 of the upper frame 41 by a screw SC11 inserted through the opening 5121 of the end plate portion 5120.

[0131] In this embodiment, the end extensions 44a1, 44a1, which are provided on the visible surface 44a of the joint inner stile 44 and sandwich the end plate 5120, extend to approximately the same position as the upper end of the outdoor stile member 441. The vibration-stopper component body 5110 abuts against the upper end surfaces 44a11, 44a11 of the outdoor stile member 441 and the end extensions 44a1, 44a1, and is positioned to cover these upper end surfaces. The indoor-side sight plate 5140 is positioned flush with the indoor-side X2 sight surface 44a12 of the end extension 44a1 on the indoor-side X2 side of the pair of end extensions 44a1, 44a1. The upper-end sealing plate 5150 fits inside the upper end opening 4431c1 of the first indoor-side stile member 4431. The upper end sealing plate portion 5150 is arranged flush with the upper end surface 4431d1 of the first indoor side frame member 4431 to seal the upper end of the outdoor side frame member 441 and prevent the intrusion of dust and other particles.

[0132] As shown in Figures 26 and 29, the upper anti-vibration component 5100 is attached so that most of it is hidden inside the upper end of the joint inner frame 44. The anti-vibration component main body 5110 covering the upper end surface of the joint inner frame 44 is thin and flat, and as shown in Figure 29, is positioned on the outer periphery of the end extensions 44a1, 44a1, approximately flush with the projection surface 44a of the joint inner frame 44, or is positioned more inward (towards the front stile 43) than the projection surface 44a of the joint inner frame 44. In other words, as shown by the two-dot chain line in Figure 29, the anti-vibration component main body 5110 is positioned flush with the projection surface 44a of the joint inner frame 44, or is positioned in a position recessed from the projection surface 44a of the joint inner frame 44 toward the front stile 43 on the right side in the figure. Therefore, the upper anti-vibration component 5100 does not protrude toward the vertical frame 23 on the outer periphery of the end extension portions 44a1, 44a1.

[0133] When the upper end of the joint inner frame 44 is viewed from the indoor side X2, as shown in Figure 26, only a portion of the thin, flat anti-vibration component main body 5110, the end plate portion 5120, and the indoor side sight plate portion 5140 are visible. Furthermore, the pair of end extensions 44a1, 44a1 of the joint inner frame 44 extend above the lower end position of the indoor side upper rail 21b of the upper frame 21. This prevents the upper anti-vibration component 5100 from being noticeable. Furthermore, like the upper anti-vibration component 4100, the upper anti-vibration component 5100 is positioned higher and toward the outside of the frame body 2 than the position of the angle portion 216, which is the innermost end position of the frame body 2 on the indoor side X2, and the pair of end extensions 44a1, 44a1 also extend above the underside of the angle portion 216. As a result, the upper sway prevention part 5100 cannot be seen even when looking straight at the sliding window 1 from the inside X2 of the room. Therefore, by attaching the upper sway prevention part 5100 to the joint inner frame 44, it has the same effect as the upper sway prevention part 4100 and further improves the design of the upper end of the joint inner frame 44.

[0134] The lower anti-vibration part 5200 attached to the lower end opening 44d2 of the joint inner frame 44 has an anti-vibration part main body 5210, an end plate portion 2, an outdoor sight plate portion 5230, an indoor sight plate portion 5240, and a condensation water tray 5250.

[0135] The anti-sway component body 5210, like the anti-sway component body 5110 of the upper anti-sway component 5100, has a planar shape corresponding to the planar shape of the joint inner stile 44, and is formed as a thin, flat plate with a small thickness in the vertical direction. The anti-sway component body 5210 is disposed at the lower end of the joint inner stile 44 by abutting against and covering the joint inner stile 44 from below, as shown in FIG.

[0136] The anti-vibration component body 5210 has a groove 5211 that opens to the underside 5210a. The groove 5211 is formed in a downward U-shape in cross section, extends left and right of the inner shoji screen 4 along the extension direction of the lower frame 42, and penetrates the anti-vibration component body 5210 left and right. Similar to the anti-vibration component body 4210 of the lower anti-vibration component 4200, the groove 5211 engages with the indoor lower rail 22b of the lower frame 22 when the inner shoji screen 4 is housed within the frame body 2. Multiple locking plates 5212 protrude upward from the upper surface of the anti-vibration component body 5210. As shown in FIG. 31 , the underside 5210a of the anti-vibration component body 5210 has drainage holes 5213 that drain condensation water received by the anti-vibration component body 5210 onto the lower frame 22. A plurality of drain holes 5213 are provided on the lower surface 5210a, with the groove portion 5211 sandwiched therebetween.

[0137] The end plate portion 5220 has a semicircular upper end and extends upward along the depth direction of the groove portion 5211 from the end of the anti-vibration component main body 5210 exposed on the visible surface 44a of the joint inner stile 44. The groove portion 5211 penetrates the end plate portion 5220 and opens to the visible surface 44a of the joint inner stile 44. Two openings 5221, 5222 are formed in the end plate portion 5220, one above the other. The upper opening 5221 is a hole through which a screw SC21 is inserted to secure the exterior stile member 441 of the joint inner stile 44 to the exterior stile member 421 of the lower stile 42. The screw SC21 is a fastener that secures the vertical and horizontal stiles together. The screw SC21 passes through the opening 921 and a screw hole 441d1 formed in the lower end of the outer wall portion 441d of the outdoor frame member 441, and is screwed into a tapping hole 421j formed in the outdoor frame member 421 of the lower frame 42. The lower opening 5222 is a hole through which an adjustment tool is inserted when adjusting the door roller R provided on the lower frame 42. A blind cap 5220a is attached to each of the two openings 5221, 5222.

[0138] The outdoor spotting plate 5230 extends upward from the end 5210b on the outdoor side X1 of the vibration prevention device main body 5210. As shown in Figure 32, the outdoor spotting plate 5230 is arranged in approximately half of the area on the visible surface 44a side of the joint inner stile 44 at the end 5210b on the outdoor side X1 of the vibration prevention device main body 5210. The outdoor spotting plate 5230 is continuous with and arranged approximately flush below the outdoor end surface 442j exposed to the outdoor side X1 of the attachment 442 of the joint inner stile 44 shown in Figure 12, and is also arranged approximately flush alongside the outer periphery in the visible direction of the outdoor wall portion 441a of the outdoor stile member 441 of the joint inner stile 44.

[0139] The indoor side sight plate 5210 extends upward from the indoor side X2 end of the anti-vibration component main body 5210. The indoor side sight plate 5240 is exposed at the lower end of the joint inner frame 44 and forms the indoor side X2 sight surface of the anti-vibration component 5200. The left-right width of the indoor side sight plate 5240 corresponds to the left-right width of the outdoor side frame member 441 of the joint inner frame 44. The end 5210c of the anti-vibration component main body 5210 located on the vertical frame 23 side, i.e., the end 5210c located on the projection surface 44a side of the joint inner frame 44, protrudes further toward the vertical frame 23 (left side in FIG. 33 ) than the indoor side sight plate 5240, as shown in FIG.

[0140] The condensation water tray 5250 is shaped like a rectangular container in a plan view and protrudes from the upper end of the indoor-side sight panel 5240 toward the indoor-side X2 side. The outer shape of the condensation water tray 5250 corresponds to the plan view shape of the rectangular lower end opening 4431c2 at the lower end of the first indoor-side stile member 4431 of the joint inner stile 44. The condensation water tray 5250 has a rectangular receiving surface 5251 and a rising portion 5252 that rises upward from the receiving surface 5251 along the outer periphery of the receiving surface 5251. The receiving surface 5251 is formed by an inclined surface that slopes downward from the indoor-side X2 side toward the outdoor-side X1 side. As shown in FIG. 32 , the outdoor-side X1 side of the receiving surface 5251 does not have a rising portion 5252 and is open to the interior of the vibration-stop component main body 5210.

[0141] As shown in Figure 31, the lower anti-vibration component 5200 is attached to the lower end of the joint inner stile 44 by inserting the locking plate 5212 into the lower end opening 44d2 from below the joint inner stile 44. The locking plate 5212 clamps the partition wall portion 441e of the exterior stile member 441. The end plate portion 5220 is accommodated in the cutout portion 4432b facing the front surface 44a of the joint inner stile 44 and is exposed at the front surface 44a of the joint inner stile 44. The condensation water tray 5250 is inserted inside the lower end opening 4431c2 of the first interior stile member 4431. The lower vibration prevention part 5200 is fixed to the outdoor frame member 421 of the lower frame 42 by a screw SC21 inserted through the opening 5221 of the end plate part 5220.

[0142] In this embodiment, the end extensions 44a2, 44a2, which are provided on the visible surface 44a of the inner stile 44 and sandwich the end plate 5220, extend to approximately the same position as the lower end of the outdoor stile member 441. The vibration-stopper body 5210 abuts against the lower end surfaces 44a21, 44a21 of the outdoor stile member 441 and the end extensions 44a2, 44a2, and is positioned to cover these lower end surfaces. The indoor-side sight plate 5240 is positioned flush with the indoor-side X2 sight surface 44a22 of the indoor-side X2 end extension 44a2 of the pair of end extensions 44a2, 44a2. The condensation water tray 5250 fits inside the lower end opening 4431c2 of the first indoor-side stile member 4431. The condensation water receiver 5250 is arranged approximately flush with the lower end surface 4431d2 of the first indoor side frame member 4431 to seal the lower end of the outdoor side frame member 441 and prevent the intrusion of dust and other particles.

[0143] As shown in Figures 30 and 33, the lower anti-vibration component 5200 is attached so that most of it is hidden inside the lower end of the joint inner frame 44. The anti-vibration component main body 5210 covering the lower end surface of the joint inner frame 44 is thin and flat, and as shown in Figure 33, on the outer periphery of the end extensions 44a2, 44a2, is positioned approximately flush with the projection surface 44a of the joint inner frame 44, or is positioned more inward (towards the front stile 43) than the projection surface 44a of the joint inner frame 44. In other words, as shown by the two-dot chain line in Figure 33, the anti-vibration component main body 5210 is positioned flush with the projection surface 44a of the joint inner frame 44, or is positioned in a position recessed from the projection surface 44a of the joint inner frame 44 toward the front stile 43 on the right side in the figure. Therefore, the lower anti-vibration component body 5200 does not protrude toward the vertical frame 23 (left side in Figure 33) on the outer periphery of the end extension portions 44a2, 44a2.

[0144] When the lower end of the joint inner frame 44 is observed from the interior side X2, as shown in Figure 30, only a portion of the thin, flat, anti-vibration component main body 5210 and the end plate portion 5220 are visible. Furthermore, the pair of end extensions 44a2, 44a2 of the joint inner frame 44 extend below the upper end of the interior lower rail 22b of the lower frame 22. This prevents the lower anti-vibration component 9 from being noticeable. Furthermore, like the lower anti-vibration component 4200, the lower anti-vibration component 5200 is positioned lower toward the outside of the frame body 2 than the angle portion 226, which is the innermost end position of the frame body 2 on the interior side X2. The pair of end extensions 44a2, 44a2 also extend below the upper surface of the angle portion 226. This prevents the lower anti-vibration component 5200 from being visible when viewing the sliding window 1 from the interior side X2. Therefore, by attaching the lower anti-vibration part 52009 to the joint inner frame 44, the same effect as the lower anti-vibration part 4200 is achieved, and the design of the lower end of the joint inner frame 44 is further improved.

[0145] 26 to 33, the upper and lower vibration-preventing components 5100 and 5200 are arranged flush with the projection surface 44a of the inner frame 44, as shown in FIGS. 29 and 33, and do not protrude toward the vertical frame 23. In this case, when the inner shoji screen 4 is opened toward the vertical frame 23, the crescent lock 45 (see FIG. 1) provided on the projection surface 44a of the inner frame 44 may collide with the vertical frame 23. Therefore, as shown in FIGS. 34 and 35, it is preferable to provide a stopper member 46 on at least one of the upper and lower frames 41 and 42 of the inner shoji screen 4. In the inner shoji screen 4 of this embodiment, stopper members 46, 46 are provided on both the upper and lower frames 41 and 42.

[0146] The stopper member 46 is made of a resin block. The stopper member 46 is arranged on the outdoor frame members 411, 421 of the upper and lower frames 41, 42, and is attached to the surface of the outdoor wall portions 411a, 421a that form the outdoor X1 facing surfaces of the outdoor frame members 411, 421, close to the door end frame 43. When the inner shoji screen 4 is opened toward the vertical frame 23, the stopper member 46 collides with the facing surface of the outer frame 34 of the outer shoji screen 3 on the outdoor X1 side of the inner shoji screen 4 before the crescent lock 45 collides with the vertical frame 23, thereby determining the limit position in the opening direction. The visible surface of the outer frame 34 of the outer screen 3 is formed by the outer wall portion 341d of the metal frame member 341, and the stopper member 46 does not come into contact with the wooden portion of the frame body 30 of the outer screen 3, so there is no risk of the design being impaired by scratches on the wood, etc. There is no need to provide stopper members on the interior upper rail 21b and interior lower rail 22b of the upper frame 21 and lower frame 22 along which the inner screen 4 slides, and the stopper member 46 is not visible from the interior side X2, further improving the design of the sliding window 1.

[0147] The sliding window 1 according to the first embodiment has the following advantages. The sliding window 1 includes an outer shoji screen 3 and an inner shoji screen 4 that hold a surface material G on the inside of the upper frame 31, 41, the lower frame 32, 42, the door edge frame 33, 43, the outer frame 34, and the inner frame 44, which are assembled vertically and horizontally. The upper frame 31, 41, the lower frame 32, 42, the door edge frame 33, 43, and the inner frame 44 are made of metal outside frame members 311, 321, 331, 411, 421, 431, 441, and wooden indoor frame members 313, 323, 333, 413, 423, 433, 443, and are arranged between the outdoor frame members 311, 321, 331, 411, 421, 431, 441 and the indoor frame members 313, 323, 333, 413, 423, 433, 443, and the indoor frame members 313, 323, 333, 413, 423 , 433, 443 to the outdoor frame members 311, 321, 331, 411, 421, 431, 441, and the attachments 312, 322, 332, 412, 422, 432, 442 are attached to the indoor frame members 313, 323, 333, 413, 423, 43 The inner peripheral end faces 313a, 323a, 333a, 413a, 423a, 433a, 443a of the respective shafts 3 and 443 are covered with covering portions 312h1, 322h1, 332h1, 412h1, 422h1, 432h1, 442h1, 332h2, 332h3, 332h4, 332h5, 432h2, 432h3, 432h4, 432h5.

[0148] This prevents condensation water generated on the surface material G from being transferred to the indoor frame members 313, 323, 333, 413, 423, 433, 443 of the upper frame 31, 41, the lower frame 32, 42, the door end frame 33, 43, and the door joint inner frame 44. Therefore, the indoor frame members 313, 323, 333, 413, 423, 433, 443 are less likely to be soiled by condensation water.

[0149] In the sliding window 1, the cover portions 312h1, 322h1, 332h1, 412h1, 422h1, 432h1, 442g1, 332h2, 332h3, 332h4, 332h5, 432h2, 432h3, 432h4, 432h5 have engagement portions 312h, 322h, 332h, 412h, 422h, 432h, 442g that engage with the indoor frame members 313, 323, 333, 413, 423, 433, 443.

[0150] With this, the cover portions 312h1, 322h1, 332h1, 412h1, 422h1, 432h1, 442g1, 332h2, 332h3, 332h4, 332h5, 432h2, 432h3, 432h4, 432h5 that receive condensation water also serve as engagement portions with the indoor frame members 313, 323, 333, 413, 423, 433, 443, thereby simplifying the structure of the attachments 312, 322, 332, 412, 422, 432, 442.

[0151] In the sliding window 1, the covering portions 322h1, 422h1, 332h2, 332h3, 332h4, 332h5, 432h2, 432h3, 432h4, 432h5 cover at least a portion of the inner end surfaces 323a, 423a of the indoor frame members 323, 423 between the outdoor frame members 321, 421 and the indoor frame members 323, 423 at the lower end side of the surface material G.

[0152] This effectively prevents the indoor frame members 323, 423 from being soiled or damaged by condensation water flowing down the surface of the surface material G.

[0153] In the sliding window 1, the cover portions 322h2, 422h2 have an inclined surface that slopes toward the outer periphery of the bottom frame 32, 42 from the inside X2 to the outside X1.

[0154] This makes it difficult for condensation water flowing down the surface of the surface material G to flow over the cover portions 322h2, 422h2 and out to the indoor side X2, thereby effectively achieving the effect of catching condensation water by the cover portions 322h1, 422h1.

[0155] In the sliding window 1, the cover portions 322h3, 422h3 have a rib LB that rises inward at the end on the indoor side X2.

[0156] This makes it difficult for condensation water flowing down the surface of the surface material G to flow over the cover portions 322h3, 422h3 and out to the indoor side X2, thereby effectively achieving the effect of catching condensation water with the cover portions 322h3, 422h3.

[0157] In the sliding window 1, the cover portions 322h4, 422h4 are formed by recessed grooves.

[0158] This allows the condensation water flowing down the surface of the surface material G to be temporarily stored within the cover portions 322h4, 422h4, so that even if a large amount of condensation water is generated, it is even less likely to flow out to the indoor side X2 than through the cover portions 322h4, 422h4.

[0159] In the sliding window 1, the covering portions 322h5, 422h5 cover the entire inner peripheral end surfaces 323a, 423a of the indoor frame members 323, 423.

[0160] This means that there is no risk of the indoor frame members 323, 423 coming into direct contact with the condensation water flowing down the surface of the surface material G, which further effectively prevents the indoor frame members 323, 423 from being soiled by the condensation water.

[0161] In the sliding window 1, the attachments 312, 322, 332, 412, 422, 432, and 442 are made of resin.

[0162] This makes it difficult for condensation to occur on the attachments 312, 322, 332, 412, 422, 432, and 442 themselves.

[0163] In the sliding window 1, the vertical and horizontal upper frames 31, 41, lower frames 32, 42, door end frames 33, 43, outer frame 34, and inner frame 44 are connected together with fixing devices such as screws SC1, SC11, SC2, and SC21, and the inner frame 44 has upper and lower anti-sway components 4100, 4200 and 4200, 5200 which are end caps made of a different material from the interior side X2 surface of the inner frame 44, and the visible surface 44a of the inner frame 44 has end extensions 44a1, 44a2 which extend on both sides of the position of the screws SC1, SC11, SC2, and SC21.

[0164] With this, even if the upper and lower sway prevention components 4100, 5100 and 4200, 5200 are made of a different material from the surface of the interior side X2 of the joint inner frame 44, the provision of the end extensions 44a1, 44a2 makes the upper and lower sway prevention components 4100, 5100 and 4200, 5200 less noticeable. This improves the design of the sliding window 1.

[0165] In the sliding window 1, the upper sway prevention components 4100, 5100 and the lower sway prevention components 4200, 5200 have openings 4121, 5121, 4221, 5221 for inserting screws SC1, SC11, SC2, SC21, and the end extensions 44a1, 44a2 are arranged on the outdoor side X1 and indoor side X2 of the openings 4121, 5121, 4221, 5221.

[0166] As a result, the end extensions 44a1, 44a2 are positioned on the outdoor side X1 and indoor side X2 of the openings 4121, 5121, 4221, 5221, so that when screws SC1, SC11, SC2, SC21 are attached through the openings 4121, 5121, 4221, 5221, the visible surface 44a of the joint inner frame 44 is less likely to be damaged.

[0167] In the sliding window 1, the upper sway prevention parts 4100, 5100 and the lower sway prevention parts 4200, 5200 are attached to the ends of the inner frame 44, which is the vertical frame among the upper and lower frames 31, 41, lower frames 32, 42, door end frames 33, 43, outer frame 34, and inner frame 44.

[0168] This improves the design of the inner frame 44 of the sliding window 1.

[0169] In the sliding window 1, the end caps are upper anti-sway parts 4100, 5100 and lower anti-sway parts 4200, 5200 that suppress the vibration of the inner shoji screen 4.

[0170] This allows the design of the sliding window 1 to be improved while suppressing the vibration of the inner shoji screen 4.

[0171] In the sliding window 1, the shoji screens are an outer shoji screen 3 and an inner shoji screen 4 that are each placed inside the frame 2 so that they can slide laterally.

[0172] This improves the design of the outer shoji screen 3 and inner shoji screen 4 of the sliding window 1.

[0173] In the sliding window 1, the vertical frame is the inner frame 44 of the inner shoji screen 4.

[0174] The inner frame 44 of the inner shoji screen 4 is easily visible from the inside X2 of the room, which effectively improves the design of the sliding window.

[0175] In the sliding window 1, the lower anti-sway parts 4200, 52009 are attached to the lower end of the joint inner frame 44, and the visible surface 44c on the indoor side X2 of the joint inner frame 44 extends to the same position as the lower end of the end extension part 44a2, and protrudes toward the indoor side X2 further than the position of the indoor side plate part 222d of the indoor side metal frame member 222, which is the indoor side X2 position of the lower frame 22 in the frame body 2.

[0176] According to this, when the joint inner frame 44 is observed from the inside X2 of the room, the lower anti-sway parts 4200, 52009 are hidden by the visible surface 44c on the inside X2 of the joint inner frame 44, making them even less visible, resulting in excellent design.

[0177] In the sliding window 1, the upper and lower sway prevention components 4100 and 4200 have protrusions 4114 and 4215 that protrude further toward the outer periphery of the joint inner frame 44 than the projecting surface 44a of the joint inner frame 44 on the outer periphery of the end extensions 44a1 and 44a2 of the joint inner frame 44.

[0178] This prevents the projection surface 44a of the inner frame 44 from coming into direct contact with the stopper member, so that even if the inner shoji screen 4 collides with the vertical frame 23 with great force, there is no risk of the projection surface 44a being damaged.

[0179] In the sliding window 1, the upper and lower anti-sway components 5100 and 5200 have flat anti-sway component bodies 5110 and 5210, which are arranged to cover the end faces 44a11 and 44a21 of the end extension portions 44a1 and 44a2 of the joint inner frame 44, and are arranged on the outer periphery of the end extension portions 44a1 and 44a2, approximately flush with the visible surface 44a of the joint inner frame 44, or further inward than the visible surface 44a of the joint inner frame 44.

[0180] According to this, even when observing the upper and lower ends of the joint inner frame 44, only a portion of the flat plate-shaped anti-vibration component main body 5110, 5210 is visible, and the upper anti-vibration component 5100 and the lower anti-vibration component 5200 are not noticeable. Therefore, the design of the upper and lower ends of the joint inner frame 44 of the sliding window 1 is further improved.

[0181] In the sliding window 1, a stopper member 46 is provided on the exterior wall portions 411a, 421a which form the visible surface on the exterior side X1 of at least one of the upper frame 41 and the lower frame 42 of the vertical and horizontal frames of the inner shoji screen 4, and which abuts against the mating outer frame 34 of the outer shoji screen 3 when the inner shoji screen 4 moves in the opening direction, thereby determining the limit position of the opening direction of the inner shoji screen 4.

[0182] This allows the limit position of the opening direction of the inner shoji screen 4 to be determined by the stopper member 46. There is no need to provide the stopper member on the upper frame 21 and lower frame 22 along which the inner shoji screen 4 slides, and the stopper member 46 is not visible from the inside X2 of the room, further improving the design of the sliding window 1.

[0183] In the sliding window 1, the visible surface 44a of the joint inner frame 44 is formed from wood, and the upper sway prevention parts 4100, 5100 and the lower sway prevention parts 4200, 5200 are made of resin.

[0184] This effectively improves the design of the sliding window 1 even though the materials used are different, namely wood and resin.

[0185] In the sliding window 1, the upper anti-sway components 4100, 5100 and the lower anti-sway components 4200, 5200 are positioned in a position that is recessed in the direction toward the outside of the frame body 2 from the position of the angle portions 216, 226, which are the innermost end positions on the indoor side X2 of the frame body 2.

[0186] As a result, when the sliding window 1 is observed from the inside X2, the main body portions of the upper anti-sway parts 4100, 5100 and the lower anti-sway parts 4200, 5200 that protrude from the upper and lower ends of the joint inner frame 44 become even less visible, further improving the design of the sliding window 1.

[0187] In the sliding window 1, the joint inner frame 44 has condensation water receivers 4230, 5250 which are water receivers that collect condensation water adhering to the outer shoji 3 and inner shoji 4, and the condensation water receivers 4230, 5250 are arranged between the outdoor frame member 441 and the indoor frame member 443 and are not exposed to the indoor side X2.

[0188] This makes it possible to provide a sliding window 1 with a highly aesthetic design, since the condensation water trays 4230, 5250 cannot be seen from the inside X2 of the room.

[0189] In the sliding window 1, the condensation water receivers 4230, 5250 have receiving surface portions 4231, 5251 that receive condensation water and rising portions 4232, 5252 that rise from the periphery of the receiving surface portions 4231, 5251, and the receiving surface portions 4231, 5251 are inclined surfaces that slope downward toward the outside side X1.

[0190] This allows the condensation water received by the receiving surface portions 4231, 5251 to be smoothly drained to the outside of the room X1, so there is no risk of the indoor frame member 443 coming into contact with the condensation water.

[0191] In the sliding window 1, the receiving surface portions 4231, 5251 are arranged on the lower end side of the outdoor frame member 441 and protrude toward the indoor side X2 beyond the indoor side surface 441b1 of the outdoor frame member 441.

[0192] This allows condensation water generated on the indoor side surface 441b1 of the outdoor frame member 441 to be reliably received by the receiving surfaces 4231, 5251, and allows the function of receiving condensation water to be fully fulfilled.

[0193] In the sliding window 1, lower anti-sway parts 4200, 5200 are attached to the lower end of the inner frame 44, which is the vertical frame of the upper frames 31, 41, lower frames 32, 42, door end frames 33, 43, outer frame 34, and inner frame 44, which are assembled vertically and horizontally, and condensation water trays 4231, 5251 are provided on the lower anti-sway parts 4200, 5200.

[0194] According to this, by attaching the lower anti-vibration part 4200 to the joint inner frame 44, one part of the lower anti-vibration part 4200 can perform the functions of anti-vibration and condensation water collection.

[0195] In the sliding window 1, the outdoor frame member 441 is formed of metal.

[0196] Since the outdoor frame member 441 is made of metal, condensation water is likely to occur on its indoor side surface 441b1, so the effect of collecting condensation water in the condensation water receiver is more effectively achieved.

[0197] In the sliding window 1, the indoor frame member 443 is made of wood.

[0198] This allows the user to enjoy the design of the texture of the wood from the indoor side X2 of the sliding window 1, and there is no risk of the indoor side frame member getting wet with condensed water, and there is no risk of the indoor side frame member getting soiled by condensed water.

[0199] In the sliding window 1, the condensation water tray 73 is made of resin.

[0200] This makes it difficult for condensation water to form on the condensation water receiver 73 itself.

[0201] Second Embodiment Next, a fitting according to a second embodiment will be described in detail with reference to FIGS.

[0202] The fixture according to the second embodiment is a sliding window 1A that is attached to a rectangular opening 110 in a building skeleton 100. Since parts with the same reference numerals as those in the sliding window 1 according to the first embodiment have the same configuration, their detailed explanations will be omitted below, with the explanations above being used interchangeably. The sliding window 1A is 2500 mm or higher in height, and has four shoji screens 3A to 6A that are slidably housed laterally on the inner periphery of a frame 2A that is attached to the opening 110. The four shoji screens 3A to 6A are made up of two inner shoji screens 3A and 4A that slide on the same interior rail, and two outer shoji screens 5A and 6A that slide on the same exterior rail.

[0203] The upper and lower frames 21 and 22 of the frame body 2A are identical to those of the sliding window 1 of the first embodiment, except for their different lengths. As shown in Figures 39 and 40, attachments 235A and 245A are attached to the inner peripheral surfaces 231b and 241b of the pair of left and right vertical frames 23 and 24 of the sliding window 1A, at a location closer to the interior X2 than the outer shoji screens 5 and 6 when closed. The attachments 236 and 246 are components of the vertical frames 23 and 24. The attachments 235A and 245A have inner peripheral plate portions 235a and 245a facing the inner peripheral side, and legs 235b and 245b that protrude from the inner peripheral plate portions 235a and 245a toward the outer peripheral side and abut against the inner peripheral surfaces 231b and 241b of the vertical frame bodies 231 and 241. The ends of the attachments 235A, 245A on the outdoor side X1 engage with engagement pieces 231c, 241c protruding from the inner peripheral surfaces 231b, 241b of the vertical frame bodies 231, 241. The ends of the attachments 235A, 245A on the indoor side X2 engage with portions of the angle portions 236, 246 that extend along the indoor side plate portions 233, 243.

[0204] The inner panel portions 235a, 245a of the attachments 235A, 245A are provided with vertical frame covering materials 237, 247. The vertical frame covering materials 237, 247 are decorative materials that cover the portions of the vertical frames 23, 24 that are closer to the interior side X2 than the outer shoji screens 5A, 6A, improving the design of the sliding window 1A when viewed from the interior side X2. The vertical frame covering materials 237, 247 are made of the same material as the frame covering materials provided on the frames 30A, 40A, 50A, 60A of each shoji screen 3A to 6A, which will be described later. In this embodiment, the vertical frame covering materials 237, 247 are made of plank-shaped wood. In this case, it is preferable that the frame members 130 surrounding the four perimeters, as well as the vertical frame covering materials 237, 247, be made of the same material as the frame covering materials provided on the frames 30A, 40A, 50A, and 60A of each of the shoji screens 3A to 6A, which will be described later.The use of the same material on the interior side X2 of the sliding window 1A creates an overall sense of unity, further improving the design.

[0205] The vertical frame covering materials 237, 247 are fixed to the inner panel portions 235a, 245a with screws 237b, 247b driven from the back of the inner panel portions 235a, 245a, with multiple double-sided adhesive tapes 237a, 247a interposed between them. As a result, the vertical frame covering materials 237, 247 cover the area between the end stiles 54A, 64A of the outer shoji screens 5A, 6A in the closed state and the angle portions 236, 246 in the vertical frames 23, 24. As shown in Figures 39 and 40, the inner peripheral surfaces 237c, 274c of the vertical frame covering materials 237, 247 are arranged approximately flush with the angle portions 236, 246 and the inner peripheral surfaces 133a, 134a of the vertical frame members 133, 134. The double-sided adhesive tapes 237a, 247a extend along the extension direction of the vertical frames 23, 24 and are spaced apart from one another in the projection direction. Therefore, a gap corresponding to the thickness of the double-sided adhesive tapes 237a, 247a is formed between the vertical frame covering material 237, 247 and the inner plate portion 235a, 245a. This gap constitutes a ventilation flow path. This allows drainage even if condensation or the like occurs on the inner plate portion 236a, 247a, and prevents the vertical frame covering material 237, 247 from coming into contact with the condensation or the like and getting wet. Furthermore, ventilation promotes drying. The double-sided adhesive tapes 237a, 247a may be formed long and arranged over the entire length of the vertical frames 23, 24 in the extension direction, or may be formed short and arranged piecemeal at intervals along the extension direction of the vertical frames 23, 24.

[0206] When the vertical frame covering material 237, 247 and the inner surface plate portion 235a, 245a are fixed with screws, the material interposed between them need only be a gap-forming material having a thickness sufficient to form a gap that forms the ventilation flow path, and is not necessarily limited to the double-sided adhesive tape 237a, 247a. Examples of gap-forming materials other than the double-sided adhesive tape 237a, 247a include elastic materials such as tape or sheet-shaped materials made of rubber, resin, etc.

[0207] The attachments 235A, 245A are made of, for example, metal or resin. When the attachments 235A, 245A are made of metal, they are made of, for example, aluminum material, but are not limited to, aluminum. Because the attachments 235A, 245A are made of metal or resin, it is possible to suppress deterioration of the attachments 235A, 245A over time compared to wood. When the attachments 235A, 245A are made of resin, it is possible to improve the thermal insulation of the vertical frames 23, 24 on the indoor side X2 of the outer shoji screen 5A, 6A.

[0208] The inner shoji screens 3A and 4A are disposed on the indoor side X2 on the inner periphery of the frame body 2A, and are attached so as to be slidable left and right across the indoor side upper rail 21b of the upper frame 21 and the indoor side lower rail 22b of the lower frame 22. The outer shoji screens 5A and 6A are disposed on the outdoor side X1 on the inner periphery of the frame body 2A, and are attached so as to be slidable left and right across the outdoor side upper rail 21a of the upper frame 21 and the outdoor side lower rail 22a of the lower frame 22.

[0209] As shown in Figures 36 and 37, the inner shoji screen 3A is constructed by assembling an upper frame 31A, a lower frame 32A, and vertical frames (inner frame 33A and butt frame 34A) into a rectangular frame body 30A. The butt frame is a vertical frame that butts against each other when two shoji screens moving on the same rail are closed. As shown in Figure 38, the face material G is made of double-glazed glass having two panes of glass Ga, Ga laminated with a spacer Gb extending around the four edges. However, the face material G is not limited to double-glazed glass and may be made of single-glazed glass or triple-glazed glass. The face material G may also be made of four or more panes of glass. The face material G may also be made of a light-opaque panel board. As shown in Figures 37 and 41, a crescent lock 350 is attached to the visible surface 33a of the joint inner frame 33A.

[0210] As shown in Figures 36 and 37, the inner shoji A4 is constructed by assembling an upper frame 41A, a lower frame 42A, and vertical frames, i.e., a joint inner frame 43A and a butt frame 44A, into a rectangular frame body 40A. The same surface material G as the inner shoji 3A is fitted inside the frame body 40A. As shown in Figure 37, a crescent lock 45A is attached to the visible surface 43a of the joint inner frame 43A. The joint inner frame 43A of the inner shoji 4A has the same structure as the joint inner frame 33A of the inner shoji 3A shown in Figure 41, and is arranged symmetrically to Figure 41, so the joint inner frame 43A of the inner shoji 4A corresponding to Figure 41 is not shown.

[0211] As shown in Figures 36 and 37, the outer shoji 5A has the same surface material G as the inner shoji 3A housed inside the frame body 50A, which is formed by assembling an upper frame 51A, a lower frame 52A, a vertical frame (a joint outer frame 53A) and a door end frame 54A into a rectangular shape. As shown in Figure 41, the joint outer frame 53A is fitted with a crescent receiver 550 that engages with the crescent lock 350 of the inner shoji 3A when closed to lock it.

[0212] As shown in Figures 36 and 37, the outer shoji 6A is constructed by assembling an upper frame 61A, a lower frame A62, a vertical frame 63A, and a door edge frame 64A into a rectangular shape. The same surface material G as the inner shoji 3A is fitted inside the frame body 60A. The frame 63A is fitted with a crescent receiver that engages with the crescent lock 450 of the inner shoji 4A when closed to lock it. However, the frame 63A of the outer shoji 6A has the same structure as the frame 53A of the outer shoji 5A shown in Figure 41, and is arranged symmetrically to Figure 41, so the frame 63A of the outer shoji 6A corresponding to Figure 41 is not shown.

[0213] The frames 30A, 40A, 50A, and 60A of the inner and outer shoji screens 3A and 4A and 5A and 6A, respectively, have a composite structure composed of metal and non-metal materials. This makes the sliding window 1A a composite sash. In the frames 30A, 40A, 50A, and 60A, the upper frames 31A, 41A, 51A, and 61A have the same structure, and the lower frames 32A, 42A, 52A, and 62A have the same structure. Therefore, these structures will be described with reference to the common drawings shown in Figures 43 to 46.

[0214] [Upper frames of inner and outer shoji screens] As shown in Figure 43, the upper frames 31A, 41A, 51A, and 61A are composed of an upper frame body 1100, an attachment 1200, and an upper frame covering material 1300.

[0215] (Upper Frame Body) The upper frame body 1100 is made of an extruded metal member such as aluminum, and is configured to have an outdoor wall portion 1110, an indoor wall portion 1120, an inner circumferential wall portion 1130, and an outer circumferential wall portion 1140. The inner circumferential wall portion 1130 is located at the inner circumferential ends of the outdoor wall portion 1110 and the indoor wall portion 1120, and connects the outdoor wall portion 1110 and the indoor wall portion 1120 in the projection direction (left-right direction in FIG. 43 ). The outer circumferential wall portion 1140 is located midway between the outdoor wall portion 1110 and the indoor wall portion 1120 in the projection direction (up-down direction in FIG. 43 ), and connects the outdoor wall portion 1110 and the indoor wall portion 1120 in the projection direction. As a result, the upper frame body 1100 has a hollow portion S11 inside the rectangular area surrounded by the outdoor side wall portion 1110, the indoor side wall portion 1120, the inner side wall portion 1130 and the outer side wall portion 1140.

[0216] The outdoor wall portion 1110 and the indoor wall portion 1120 each extend outward beyond the position of the outer peripheral side wall portion 1140. As a result, a rail engagement groove 1150 is formed on the outer peripheral side of the upper frames 31A, 41A, 51A, and 61A. A fin member 1111 that protrudes toward the indoor side X2 is attached to the outer peripheral end of the outdoor wall portion 1110. The fin member 1111 is made of an elastic member such as rubber and is provided in an elongated shape along the extension direction of the upper frames 31A, 41A, 51A, and 61A. The fin member 1111 ensures airtightness by abutting against the outdoor upper rail 21a or the indoor upper rail 21b from the outdoor side X1.

[0217] The outdoor wall portion 1110 extends further inward than the position of the inner wall portion 1130. As a result, the upper frame body 1100 forms a panel support portion 1160 that supports the outdoor side X1 surface of the panel G.

[0218] The outer peripheral wall portion 1140 has a tapping hole 1141 formed therein that protrudes into the hollow portion S11. Screws (not shown) are driven into the tapping hole 1141 to fasten the upper ends of the inner frame 33A, 4A3 and butt frame 34A, 44A of the inner shoji screen 3A, 4A, and the outer frame 53A, 63A and end frame 54A, 64A of the outer shoji screen 5A, 6A, which are arranged vertically at both ends of the upper frame 31A, 41A, 51A, 61A.

[0219] (Attachment) The attachment 1200 is a component that constitutes the upper frame 31A, 41A, 51A, and 61A. The attachment 1200 is arranged to cover the visible surface of the indoor side X2 of the upper frame main body 1100 along its entire length in the extension direction. The attachment 1200 is composed of an outdoor side wall portion 1210, an indoor side wall portion 1220, an inner peripheral side wall portion 1230, and an outer peripheral side wall portion 1240, and has a hollow portion S12 inside the rectangular area surrounded by these. The attachment 1200 is a hollow member that is thinner in the projection direction than the upper frame main body 1100.

[0220] The outer peripheral end and inner peripheral end of the outdoor wall portion 1210 are provided with an outdoor upper engagement portion 1211 and an outdoor lower engagement portion 1212 that protrude in an L shape toward the outdoor side X1. The outdoor upper engagement portion 1211 engages with the outer peripheral end of the indoor side wall portion 1120 of the upper frame body 1100. The outdoor lower engagement portion 1212 engages with an L-shaped piece 1121 that protrudes toward the indoor side X2 at the inner peripheral end of the indoor side wall portion 1120 of the upper frame body 1100. In this way, the attachment 1200 is attached to the upper frame body 1100 so as to cover the visible surface of the indoor side X2 of the upper frame body 1100.

[0221] By assembling the upper frame body 1100 and the attachment 1200, a hollow section S13 is formed between the indoor side wall section 1120 of the upper frame body 1100 and the outdoor side wall section 1210 of the attachment 1200. As the hollow sections S12 and S13 of the upper frames 31A, 41A, 51A, and 61A are arranged on the indoor side X2 of the metal upper frame body 1100, heat transfer in the forward direction is suppressed, resulting in excellent insulation properties.

[0222] The indoor side wall portion 1220 extends more inward than the inner peripheral side wall portion 1230. As a result, the attachment 1200 forms a panel support portion 1250 that supports the indoor side X2 surface of the panel G. The upper end portion of the panel G is accommodated and supported between the panel support portion 1160 and the panel support portion 1250.

[0223] The attachment 1200 is made of, for example, metal or resin. When the attachment 1200 is made of metal, it is made of, for example, aluminum, but is not limited to, aluminum. Because the attachment 1200 is made of metal or resin, the processing precision of the attachment 1200 as a panel support can be increased compared to when the indoor side X2 of the panel G is supported by a wooden panel support, and deterioration of the attachment 1200 over time can be suppressed. As a result, it is possible to prevent the panel G from easily coming off the upper frames 31A, 41A, 51A, and 61A. When the attachment 1200 is made of resin, it is possible to prevent the outdoor side of the upper frame covering material 1300 (described later) from being cooled by cold air from the outdoor side X1 in winter, thereby improving insulation.

[0224] The outer peripheral end of the indoor side wall portion 1220 has a protruding piece 1221 that is disposed flush with the outer peripheral side wall portion 1240 and protrudes toward the indoor side X2. The inner peripheral end of the panel support portion 1250 has a protruding piece 1251 that protrudes toward the indoor side X2 in parallel with the protruding piece 1221.

[0225] (Stile Covering Material) The stile covering material 1300 is a non-metallic stile covering material that constitutes the visible surface of the interior side X2 of the stiles 31A, 41A, 51A, and 61A. It is arranged to cover the visible surface of the interior side X2 of the attachment 1200 over the entire length of the stiles 31A, 41A, 51A, and 61A in the extension direction. The stile covering material 1300 is a decorative material that improves the design of the sliding window 1A when viewed from the interior side X2. In this embodiment, a long, flat wooden plate is used, but there is no particular limitation. The stile covering material 1300 may also be, for example, a ceramic plate, tile, glass, or resin plate.

[0226] The wood is not limited to a single piece of natural wood, but may be MDF (Medium Density Fiberboard) made from wood fiber, plywood made by laminating thin veneers, or artificial wood obtained by mixing wood powder and resin. Natural wood may also be treated with a chemical process such as acetylation.

[0227] As shown in Figure 44, the upper frame covering material 1300 is attached to the indoor wall portion 1220 of the attachment 1200 by interposing multiple double-sided adhesive tapes 1400 between the upper frame covering material 1300 and the indoor wall portion 1220. At the outer and inner ends of the upper frame covering material 1300, stepped cutout portions 1310, 1320 are formed along the entire length of the upper frame covering material 1300, opening toward the outside X1. The cutout portions 1310, 1320 engage with a pair of upper and lower protrusions 1221, 1251 of the attachment 1200 from the indoor side X2. At this time, the protrusions 1221, 1251 are fitted into the cutout portions 1310, 1320 and are concealed by the upper frame covering material 1300 from the indoor side X2. Therefore, the attachment 1200 is difficult to see from the indoor side X2. The upper frame covering material 1300 may be fixed to the indoor side wall portion 1220 of the attachment 1200 by using a plurality of double-sided adhesive tapes 1400 and by driving screws (not shown) from the indoor side X2 of the attachment 1200.

[0228] A step 1222 is formed at the boundary between the indoor-side wall portion 1220 and the panel support portion 1250. As shown in Figure 44, the visible surface 1220a on the indoor-side X2 side of the indoor-side wall portion 1220 is positioned recessed toward the outdoor-side X1 side relative to the visible surface 1250a on the indoor-side X2 side of the panel support portion 1250, across the step 1222. A plurality of double-sided adhesive tapes 1400 are positioned on the visible surface 1220a on the indoor-side X2 side of the indoor-side wall portion 1220, and extend parallel to the extension direction of the attachment 1200 at intervals from one another in the vertical visible direction.

[0229] By placing the frame covering material 1300 across the interior wall portion 1220 of the attachment 1200 and the surface material support portion 1250 via multiple double-sided adhesive tapes 1400, a gap corresponding to the thickness of the double-sided adhesive tape 1400 is formed between the attachment 1200 and the frame covering material 1300. This gap forms a ventilation flow path. As a result, even if condensation or the like occurs on the visible surface 1220a of the interior wall portion 1220 of the attachment 1200, it is possible to drain the water and prevent the frame covering material 1300 from coming into contact with the condensation or the like and getting wet, and ventilation also promotes drying. The double-sided adhesive tape 1400 may be provided over the entire length of the upper frames 31A, 41A, 51A, and 61A in the extension direction, or may be provided in pieces at intervals in the extension direction of the upper frames 31A, 41A, 51A, and 61A to improve ventilation in the vertical direction.

[0230] When the attachment 1200 and the upper frame covering material 1300 are fixed together with screws, the material interposed between them need only be a gap-forming material having a thickness sufficient to form a gap that constitutes the ventilation flow path, and is not necessarily limited to the double-sided adhesive tape 1400. Examples of gap-forming materials other than the double-sided adhesive tape 1400 include elastic materials made of rubber, resin, or the like in tape or sheet form.

[0231] [Bottom frames of inner and outer shoji screens] The bottom frames 32A, 42A, 52A, and 62A are composed of a bottom frame body 2100, an attachment 2200, and a bottom frame covering material 2300, as shown in Figure 45.

[0232] (Lower Frame Body) The upper frame body 2100 is made of an extruded profile made of metal such as aluminum, and is configured to have an outdoor-side wall portion 2110, an indoor-side wall portion 2120, an inner circumferential wall portion 2130, and an outer circumferential wall portion 2140. The inner circumferential wall portion 2130 is arranged at the inner circumferential ends of the outdoor-side wall portion 2110 and the indoor-side wall portion 2120, and connects the outdoor-side wall portion 2110 and the indoor-side wall portion 2120 in the projection direction (left and right direction in FIG. 45 ). The outer circumferential wall portion 2140 is arranged slightly inward from the outer circumferential ends of the outdoor-side wall portion 2110 and the indoor-side wall portion 2120, and connects the outdoor-side wall portion 2110 and the indoor-side wall portion 2120 in the projection direction. As a result, the lower frame body 2100 has a hollow portion S21 inside the rectangular area surrounded by the outdoor side wall portion 2110, the indoor side wall portion 2120, the inner side wall portion 2130 and the outer side wall portion 2140.

[0233] The outdoor wall portion 2110 and the indoor wall portion 2120 each extend outward beyond the position of the outer peripheral side wall portion 2140. As a result, a rail engagement groove 2150 is formed on the outer peripheral side of the lower frames 32A, 42A, 52A, and 62A. A fin member 2111 that protrudes toward the indoor side X2 is attached to the outer peripheral end of the outdoor wall portion 2110. The fin member 2111 is made of an elastic member such as rubber and is provided in an elongated shape along the extension direction of the lower frames 32A, 42A, 52A, and 62A. The fin member 2111 ensures airtightness by abutting against the outdoor side lower rail 22a or the indoor side lower rail 22b from the outdoor side X1.

[0234] The outdoor wall portion 2110 extends further inward than the position of the inner wall portion 2130. As a result, the lower frame body 2100 forms a panel support portion 2160 that supports the outdoor side X1 surface of the panel G.

[0235] A door roller 2170 is housed in a hollow portion S21 between the outdoor wall portion 2110 and the indoor wall portion 2120. The door roller 2170 protrudes downward from the outer circumferential wall portion 2140 and is rotatably placed on the outdoor lower rail 22 a or the indoor upper rail 22 b.

[0236] A tapping hole 2131 protruding inward is formed in the inner peripheral side wall portion 2130. Screws (not shown) are driven into the tapping hole 2131 to fasten the lower ends of the inner joint frames 33A, 43A and butt frames 34A, 44A of the inner shoji screens 3A, 4A, and the outer joint frames 53A, 63A and end frames 54A, 64A of the outer shoji screens 5A, 6A, which are arranged vertically at both ends of the lower frames 32A, 42A, 52A, 62A.

[0237] (Attachment) The attachment 2200 is a component that constitutes the lower frame 32A, 42A, 52A, and 62A. The attachment 2200 is arranged to cover the visible surface of the indoor side X2 of the lower frame main body 2100 along its entire length in the extension direction. The attachment 2200 is composed of an outdoor side wall portion 2210, an indoor side wall portion 2220, an inner peripheral side wall portion 2230, and an outer peripheral side wall portion 2240, and has a hollow portion S22 inside the rectangular area surrounded by these. The attachment 2200 is a hollow member that is thinner in the projection direction than the upper frame main body 2100.

[0238] An outdoor upper engagement portion 2211 and an outdoor lower engagement portion 2212 that protrude in an L shape toward the outdoor side X1 are provided at the inner peripheral end and outer peripheral end of the outdoor side wall portion 2210. The outdoor upper engagement portion 2211 engages with an L-shaped piece 2131 provided at the indoor side X2 end of the inner peripheral side wall portion 2130 of the stile main body 2100. The outdoor lower engagement portion 2212 engages with the outer peripheral end of the indoor side wall portion 2120 of the stile main body 2100. In this way, the attachment 2200 is attached to the stile main body 2100 so as to cover the visible surface of the indoor side X2 of the stile main body 2100.

[0239] By assembling the lower frame body 2100 and the attachment 2200, a hollow portion S23 is formed between the indoor side wall portion 2120 of the lower frame body 2100 and the outdoor side wall portion 2210 of the attachment 2200. Because the hollow portions S22 and S23 of the lower frames 32A, 42A, 52A, and 62A are arranged on the indoor side X2 of the metal lower frame body 2100, heat transfer in the forward direction is suppressed, resulting in excellent insulation properties.

[0240] The indoor side wall portion 2220 extends more inward than the inner peripheral side wall portion 2230. As a result, the attachment 2200 is formed with a panel support portion 2250 that supports the indoor side X2 surface at the lower end of the panel material G. The lower end of the panel material G is housed and supported between the panel support portion 2160 and the panel support portion 2250. As shown in FIG. 45 , a plurality of setting blocks Gc are interposed between the lower end of the panel material G and the inner peripheral side wall portion 2130 of the lower frame body 2100, spaced apart along the extension direction of the lower frame body 2100. The setting blocks Gc are arranged to sandwich the tapping hole 2131 on both sides in the projection direction, and are attached to the indoor side wall portion 2220 by engaging the engagement pieces Gc1 with the tapping hole 2131 from the inner peripheral side.

[0241] The attachment 2200 is made of, for example, metal or resin. When the attachment 2200 is made of metal, it is made of, for example, aluminum, but is not limited to, aluminum. Because the attachment 2200 is made of metal or resin, the processing precision of the attachment 2200 as a panel support can be increased compared to when the indoor side X2 of the panel G is supported by a wooden panel support, and deterioration of the attachment 2200 over time can be suppressed. As a result, the panel G is prevented from easily coming off the lower frames 32A, 42A, 52A, and 62A. When the attachment 2200 is made of resin, the outdoor side of the lower frame covering material 2300 (described below) is prevented from being cooled by cold air from the outdoor side X1, thereby improving insulation.

[0242] The outer peripheral end of the indoor side wall portion 2220 has a protruding piece 2221 that is disposed flush with the outer peripheral side wall portion 2240 and protrudes toward the indoor side X2. The inner peripheral end of the panel support portion 2250 has a protruding piece 2251 that protrudes toward the indoor side X2 in parallel with the protruding piece 2221.

[0243] (Stile Covering Material) The stile covering material 2300 is a non-metallic stile covering material that constitutes the visible surface of the interior side X2 of the stiles 32A, 42A, 52A, and 62A, and is arranged to cover the visible surface of the interior side X2 of the attachment 2200 along the entire length of the stiles 32A, 42A, 52A, and 62A in the extension direction. The stile covering material 2300 is a decorative material that improves the design of the sliding window 1A when viewed from the interior side X2. To ensure uniformity in the design of the sliding window 1A, the stile covering material 2300 is made of the same non-metallic material as the upper stile covering material 1300 provided on the above-mentioned upper stiles 31A, 41A, 51A, and 61A. In this embodiment, the stile covering material 2300 is made of the same wood as the upper stile covering material 1300.

[0244] As shown in Figure 46, the stile covering material 2300 is attached to the indoor wall portion 2220 of the attachment 2200 with multiple double-sided adhesive tapes 2400 interposed between the stile covering material 2300 and the indoor wall portion 2220. At the inner and outer peripheral ends of the stile covering material 2300, stepped cutout portions 2310, 2320 are formed, each extending along the entire length of the stile covering material 2300, so as to open toward the outdoor side X1. The cutout portions 2310, 2320 engage with a pair of upper and lower protruding pieces 2251, 2221 of the attachment 2200 from the indoor side X2. At this time, the protruding pieces 2251, 2221 are fitted into the cutout portions 2310, 2320 and are concealed by the stile covering material 2300 from the indoor side X2. Therefore, the attachment 2200 is difficult to see from the indoor side X2. The stile covering material 2300 may be fixed to the indoor side wall portion 2220 of the attachment 2200 by using a plurality of double-sided adhesive tapes 2400 and by driving screws (not shown) from the indoor side X2 of the attachment 2200.

[0245] A step 2222 is formed at the boundary between the indoor-side wall portion 2220 and the panel support portion 2250. As shown in Figure 46, the visible surface 2220a on the indoor-side X2 side of the indoor-side wall portion 2220 is positioned recessed toward the outdoor-side X1 side relative to the visible surface 2250a on the indoor-side X2 side of the panel support portion 2250, across the step 2222. A plurality of double-sided adhesive tapes 2400 are positioned on the visible surface 2220a on the indoor-side X2 side of the indoor-side wall portion 2220, and extend parallel to the extension direction of the attachment 2200 at intervals from one another in the vertical visible direction.

[0246] The stile covering material 2300 is arranged across the indoor wall portion 2220 of the attachment 2200 and the surface material support portion 2250 via multiple double-sided adhesive tapes 2400, thereby forming a gap between the attachment 2200 and the stile covering material 2300 that corresponds to the thickness of the double-sided adhesive tape 2400. This gap forms a ventilation flow path. As a result, even if condensation or the like occurs on the visible surface 2220a of the indoor wall portion 2220 of the attachment 2200, it is possible to drain the water and prevent the stile covering material 2300 from coming into contact with the condensation or the like and getting wet, and ventilation also promotes drying. The double-sided adhesive tape 2400 may be provided over the entire length of the lower frames 32A, 42A, 52A, and 62A in the extension direction, or may be provided in pieces at intervals in the extension direction of the lower frames 32A, 42A, 52A, and 62A to improve ventilation in the vertical direction.

[0247] When the attachment 2200 and the lower frame covering material 2300 are fixed together with screws, the material interposed between them need only be a gap-forming material having a thickness sufficient to form a gap that constitutes the ventilation flow path, and is not necessarily limited to the double-sided adhesive tape 2400. Examples of gap-forming materials other than the double-sided adhesive tape 2400 include elastic materials made of tape or sheet-like rubber, resin, or the like.

[0248] [Inner door frame] The inner door frame 33A, 43A, which is located on the rear end of the inner door frame 3A and the inner door frame 4A, which slide between the same interior upper rail 21b and interior lower rail 22b, is positioned so as to overlap the interior side X2 of the outer door frame 53A, 63A, which is located on the rear end of the outer door frame 5A, 6A, when the inner door frame 3A, 4A and the outer door frame 5A, 6A are closed, as shown in Figures 36, 37 and 41, and forms the inner door frame 10. The two inner door frame 10 have the same structure. Figure 41 shows the joint 10 between the inner shoji screen 3A and the outer shoji screen 5A, but since the joint 10 between the inner shoji screen 4A and the outer shoji screen 6A is arranged symmetrically to Figure 41, the illustration and explanation of the joint 10 between the inner shoji screen 4A and the outer shoji screen 6A corresponding to Figure 41 will be omitted below, as the explanation of the joint 10 between the inner shoji screen 3A and the outer shoji screen 5A will be used.

[0249] As shown in Figure 41, the inner frame 33A of the inner shoji screen 3A is composed of a frame main body 3310, an attachment 3320, and a frame covering material 3330.

[0250] (Sill body) The sill body 3310 is made of an extruded metal member such as aluminum, and has a hollow structure including an outdoor wall 3311, an indoor wall 3312, an outer wall 3313, a first inner wall 3314, a second inner wall 3315, and a partition wall 3316. The indoor wall 3312 is thicker in the projection direction than the other walls of the sill body 3310. The partition wall 3316 is positioned parallel to the outdoor wall 3311 and the indoor wall 3312, on the indoor side X2 of the surface material G, and divides the interior space of the sill body 3310 into an outdoor side X1 and an indoor side X2. The first inner circumferential side wall portion 3314 is disposed on the outdoor side X1 of the partition wall portion 3316, facing the panel material G. The second inner circumferential side wall portion 3315 is disposed on the indoor side X2 of the partition wall portion 3316, and is disposed more inward than the first inner circumferential side wall portion 3314.

[0251] The joint inner frame body 3310 has a first hollow portion S33a inside the rectangular area surrounded by the outdoor wall portion 3311, the indoor wall portion 3312, the first inner side wall portion 3314 and the partition wall portion 3316, and has a second hollow portion S33b inside the rectangular area surrounded by the indoor wall portion 3312, the outer side wall portion 3313, the second inner side wall portion 3315 and the partition wall portion 3316.

[0252] A recess 3311a that opens toward the inner periphery is formed at the inner periphery end of the exterior wall portion 3311. As shown in Figure 41, when the inner shoji screen 3A and the outer shoji screen 5A are closed, the recess 3311a receives and engages with a protrusion 5613 provided at the end of the interior side X2 of the outer frame 53A of the outer shoji screen 5A, forming a labyrinth structure. The exterior wall portion 3311 has a surface material support portion 3317 on the interior side X2 of the recess 3311a that extends more inward than the first inner periphery side wall portion 3314 and supports the exterior side X1 surface of the surface material G.

[0253] (Attachment) The attachment 3320 is a component that constitutes the joint inner frame 33A, 43A. The attachment 3320 is arranged so as to cover the inward and outward facing surfaces of the joint inner frame main body 3310 over the entire length of its extension direction. The vertical length of the attachment 3320 is longer than the vertical length of the joint inner frame main body 3310. Therefore, at least one of the upper and lower ends of the attachment 3320 is arranged so as to protrude above or below the upper or lower end of the joint inner frame main body 3310 while covering the joint inner frame main body 3310.

[0254] As shown in Figures 41 and 47, the attachment 3320 is configured to have an indoor side wall portion 3321 arranged along the indoor side wall portion 3312 of the joint inner frame main body 3310, an outer peripheral side wall portion 3322 extending in the forward direction along the outer peripheral side wall portion 3313 of the joint inner frame main body A331, and an inner peripheral side wall portion 3323 extending in the forward direction along the second inner peripheral side wall portion 3315 of the joint inner frame main body 3310. The outer peripheral side wall portion 3322 extends from the outer peripheral end of the indoor side wall portion 3321 toward the outdoor side X1. The inner peripheral side wall portion 3323 extends from the inner peripheral end of the indoor side wall portion 3321 toward the outdoor side X1.

[0255] A first engagement portion 3322a protruding toward the inner periphery is provided at the end of the outer periphery wall portion 3322 on the outdoor side X1. A second engagement portion 3323a protruding toward the outer periphery is provided near the end of the inner periphery wall portion 3323 on the outdoor side X1. As shown in FIG. 48, the first engagement portion 3322a engages with an engagement protrusion 3313a provided at the end of the outer periphery wall portion 3313 on the outdoor side X1 of the joint inner sill body 3310. As shown in FIG. 49, the second engagement portion 3323a engages with an engagement protrusion 3315a provided at the end of the second inner periphery wall portion 3315 on the outdoor side X1 of the joint inner sill body 3310. As a result, the attachment 3320 is attached to the joint inner frame body 3310 so as to cover the visible surface on the indoor side X2 of the joint inner frame body 3310 and the visible surfaces on the outer and inner sides.

[0256] As shown in Figure 47, a plurality of protrusions 3320a protruding toward the joint inner frame body 3310 are formed on the inner surfaces of the indoor side wall 3321, the outer peripheral side wall 3322, and the inner peripheral side wall 3323 of the attachment 3320. Each protrusion 3320a extends over the entire length of the attachment 3320 in the extension direction. When the joint inner frame body 3310 and the attachment 3320 are assembled, a gap equal to the protruding height of the protrusions 3320a is formed between the joint inner frame body 3310 and the attachment 3320. As a result, as shown in Figures 48 and 49, a ventilation flow path Vc1 is formed between the joint inner frame body 3310 and the attachment 3320, and the two are insulated from each other.

[0257] A panel support portion 3324 is provided at the end of the inner peripheral side wall portion 3323 closer to the exterior side X1 than the second engagement portion 3323a. As shown in Figures 47 and 49, the panel support portion 3324 is composed of a first end portion 3324a extending outward from the inner peripheral side wall portion 3323 and a second end portion 3324b extending inward from the inner peripheral side wall portion 3323. The first end portion 3324a is disposed in contact with or adjacent to the first inner peripheral side wall portion 3314 of the joint inner stile main body 3310. The end portion of the panel G on the joint inner stile 33A side is accommodated and supported between the panel support portion 3317 of the joint inner stile main body 3310 and the panel support portion 3324 of the attachment 3320.

[0258] An outer covering material engaging portion 3322b is provided at the end of the outer wall portion 3322 on the outdoor side X1, flush with the first engaging portion 3322a and protruding toward the outdoor side. The outer covering material engaging portion 3322b is formed in an L-shape that bends toward the indoor side X2. A protruding piece 3322c that protrudes toward the outdoor side is provided near the end of the outer wall portion 3322 on the indoor side X2, specifically, at a position slightly closer to the outdoor side X1 than the connection between the outer wall portion 3322 and the indoor side wall portion 3321. Furthermore, an inner covering material engaging portion 3323b formed by the second end 3324b of the panel support portion 3324 is provided at the end of the inner wall portion 3323 on the outdoor side X1. The inner covering material engaging portion 3323b is formed in an L-shape that bends toward the indoor side. Near the end of the inner side wall portion 3320 on the indoor side X2, specifically, at a position slightly on the outdoor side X1 from the connection between the inner side wall portion 3323 and the indoor side wall portion 3321, a protruding piece 3323c protruding toward the inner side is provided.

[0259] The attachment 3320 is made of, for example, metal or resin. When the attachment 3320 is made of metal, it is made of, for example, aluminum, but is not limited to, aluminum. Because the attachment 3320 is made of metal or resin, the processing precision of the attachment 3320 as a panel support can be increased compared to when the indoor side X2 of the panel G is supported by a wooden panel support, and deterioration of the attachment 3320 over time can be suppressed. As a result, it is possible to prevent the panel G from easily coming loose from the joint inner frame 33A. When the attachment 3320 is made of resin, the side of the joint inner frame covering material 3330 (described below) facing the attachment 3320 can be prevented from being cooled by cold air from the outdoor side X1 in winter, thereby improving insulation.

[0260] (Stile Covering Material) The stile covering material 3330 is a stile covering material that forms the visible and concealed surfaces of the indoor side X2 of the stiles 33A, 43A. The stile covering material 3330 covers the indoor side X2 surface of the attachment 3320 over the entire length in the extension direction of the attachment 3320 so that the attachment 3320 is not visible from the indoor side X2. Specifically, the stile covering material 3330 is arranged to cover the visible and concealed surfaces of the indoor side X2 of the attachment 3320. The joint inner frame covering material 3330 is a decorative material that improves the design of the sliding window 1A when viewed from the interior side X2, and in order to ensure uniformity in the design of the sliding window 1A, the same non-metallic material is used as the upper frame covering material 1300 provided on the above-mentioned upper frames 31A, 41A, 51A, and 61A. In this embodiment, the joint inner frame covering material 3330 is made of the same wood as the upper frame covering material 1300.

[0261] The joint inner frame covering material 3330 is made up of three divided covering materials respectively arranged along the outer surfaces of the indoor side wall portion 3321, the outer peripheral side wall portion 3322, and the inner peripheral side wall portion 3323 of the attachment 3320. Specifically, the joint inner frame covering material 3330 is made up of two first covering materials, the outer peripheral side covering material 3331 and the inner peripheral side covering material 3332, and one second covering material, the indoor side covering material 3333.

[0262] One of the first covering materials, the outer-periphery side covering material 3331, is formed in a flat plate shape and is disposed along the outer surface of the outer-periphery side wall portion 3322 of the attachment 3320. The width of the outer-periphery side covering material 3331 in the projection direction is approximately equal to the dimension between the outer-periphery side covering material engaging portion 3222b and the protruding piece 3322c provided on the outer-periphery side wall portion 3322 of the attachment 3320. As shown in Figures 47 and 48 , a cutout portion 3331a that is cut out in a stepped shape so as to open toward the outer periphery is formed at the end of the outer-periphery side covering material 3331 on the outdoor side X1 side, over the entire length of the outer-periphery side covering material 3331 in the extension direction.

[0263] The end of the outer peripheral covering material 3331 on the indoor side X2 has an opposing surface 3331b that faces the end of the outer peripheral side portion 3333b of the indoor side covering material 3333, described later, on the outdoor side X1. The opposing surface 3331b is formed over the entire length of the outer peripheral covering material 3331 in the extension direction. This opposing surface 3331b is formed as an inclined surface. Specifically, as shown in FIG. 47 , the opposing surface 3331b is inclined obliquely linearly so as to taper toward the indoor side X2. More specifically, the opposing surface 3331b is notched obliquely so that an outer surface 3331c of the outer peripheral covering material 3331, facing the outer peripheral side, approaches the outer peripheral side wall portion 3322 of the attachment 3320 as it approaches the indoor side X2. The inclination angle is not particularly limited, but may be, for example, 45° with respect to the outer surface 3331c of the outer peripheral covering material 3331. The tip of the opposing surface 3331b on the indoor side X2 has an indoor side end surface 3331d which is a flat surface perpendicular to the outer surface 3331c.

[0264] The outer periphery covering material 3331 is positioned between the outer periphery covering material engaging portion 3222b and the protruding piece 3322c by hooking and engaging the cutout portion 3331a with the outer periphery covering material engaging portion 3322b of the attachment 332A from the indoor side X2 and abutting the indoor side end face 3331d against the protruding piece 3322c of the attachment 3320. At this time, an elastic material 3340 is interposed in a compressed state between the outer periphery covering material 3331 and the attachment 3320.

[0265] The elastic material 3340 generates an elastic repulsive force when compressed, and is formed in an L-shape integrally with a first elastic material 3341 and a second elastic material 3342. As shown in Figure 48, the first elastic material 3341 is sandwiched and compressed between the flat outdoor end surface 3331e of the outer peripheral covering material 3331 and the outer peripheral covering material engaging portion 3322b of the attachment 3320. The second elastic material 3342 is sandwiched and compressed between the outdoor side X1 end of the inner peripheral surface 3331f of the outer peripheral covering material 3331 and the outdoor side X1 end of the outer peripheral wall portion 3322 of the attachment 3320.

[0266] In the elastic material 3340, the first elastic material 3341 applies a pressing force F1 toward the indoor side X2 to the outer peripheral side covering material 3331 as shown in Fig. 48 due to the elastic repulsive force generated by being sandwiched between the outer peripheral side covering material 3331 and the attachment 3320, and urges the indoor side end surface 3331d of the outer peripheral side covering material 3331 in a direction to abut against the protruding piece 3322c while maintaining the engagement between the outer peripheral side covering material 3331 and the outer peripheral side covering material engaging portion 3322b. As a result, the outer peripheral side covering material 3331 is positioned in the projection direction by the protruding piece 3322c, so that the position of the outer peripheral side covering material 3331 is consistently aligned regardless of manufacturing variations in the projection dimensions of the outer peripheral side covering material 3331, improving the design.

[0267] Furthermore, the second elastic material 3342 applies a pressing force F2 toward the outer periphery to the end of the outer side X1 of the outer periphery covering material 3331 due to the elastic repulsive force generated by being sandwiched between the outer periphery covering material 3331 and the attachment 3320, as shown in Figure 48, and urges the end of the outer side X1 of the outer periphery covering material 3331 in a direction to engage with the outer periphery covering material engaging portion 3322b. As a result, the outer periphery covering material 3331 is held and temporarily fixed between the outer periphery covering material engaging portion 3322b and the protruding piece 3322c of the attachment 3320, with the outer periphery covering material 3331 positioned in the forward direction by the protruding piece 3322c.

[0268] The other first covering material, the inner covering material 3332, is formed in a flat plate shape like the outer covering material 3331, and is arranged along the outer surface of the inner wall portion 3323 of the attachment 3320. The width in the front direction of the inner covering material 3332 is smaller than the width in the front direction of the outer covering material 3331, and is approximately equal to the dimension between the inner covering material engaging portion 3323b and the protruding piece 3323c of the inner wall portion 3323. A notch 3332a, which is cut out in a stepped shape so as to open toward the inner side, is formed at the end of the inner covering material 3332 on the outside side X1, over the entire length of the inner covering material 3332 in the extension direction.

[0269] The end of the inner periphery covering material 3332 facing the indoor side X2 has an opposing surface 3332b that faces the end of the inner periphery side 3333c of the indoor side covering material 3333, described later, facing the outdoor side X1. The opposing surface 3332b is formed over the entire length of the inner periphery covering material 3332 in the extension direction. This opposing surface 3332b is formed as an inclined surface. Specifically, as shown in FIG. 47 , the opposing surface 3332b is inclined obliquely linearly so as to taper toward the indoor side X2. More specifically, the opposing surface 3332b is notched obliquely so that the outer surface 3332c of the inner periphery covering material 3332, facing the inner periphery, approaches the inner periphery wall portion 3323 of the attachment 3320 as it approaches the indoor side X2. The inclination angle is not particularly limited, but may be, for example, 45° with respect to the outer surface 3332c of the inner periphery covering material 3332. The tip of the opposing surface 3332b on the indoor side X2 has an indoor side end surface 3332d which is a flat surface perpendicular to the outer surface 3332c.

[0270] The inner covering material 3332 is disposed between the inner covering material engaging portion 3323b and the protruding piece 3323c by engaging the cutout portion 3332a with the inner covering material engaging portion 3323b of the attachment 3320 from the indoor side X2 and abutting the indoor side end face 3332d against the protruding piece 3323c of the attachment 3320. At this time, an elastic material 3350 having a configuration similar to the elastic material 3340 described above is also interposed between the inner covering material 3332 and the attachment 3320.

[0271] 47 and 49 , the first elastic member 3351 of the elastic member 3350 is arranged so as to be sandwiched between the flat outdoor end face 3332e of the inner covering material 3332 and the inner covering material engagement portion 3323b of the attachment 3320. The second elastic member 3352 is arranged so as to be sandwiched between the outdoor side X1 end of the inner surface 3332f of the inner covering material 3332 facing the outer periphery and the outdoor side X1 end of the inner wall portion 3323 of the attachment 3320.

[0272] In the elastic material 3350, the first elastic material 3351 is sandwiched between the inner periphery-side covering material 3332 and the attachment 3320, and as a result of this, a pressing force F1 is applied to the inner periphery-side covering material 3332 toward the indoor side X2, as shown in Fig. 49 , due to the elastic repulsive force generated by the first elastic material 3351. This urges the indoor side end surface 3332d of the inner periphery-side covering material 3332 in a direction that brings it into contact with the protruding piece 3323c, while maintaining the engagement between the inner periphery-side covering material 3332 and the inner periphery-side covering material engagement portion 3323b. As a result, the inner periphery-side covering material 3332 is positioned in the projection direction by the protruding piece 3323c, and therefore the position of the inner periphery-side covering material 3332 is consistently aligned regardless of manufacturing variations in the projection dimensions of the inner periphery-side covering material 3332, improving the design.

[0273] Furthermore, the second elastic material 3352 applies a pressing force F3 toward the inner periphery to the end of the inner periphery covering material 3332 on the outside side X1 due to the elastic repulsive force generated by being sandwiched between the outer periphery covering material 3331 and the attachment 3320, as shown in Figure 49, and urges the end of the inner periphery covering material 3332 on the outside side X1 in a direction to engage with the inner periphery covering material engaging portion 3323b. As a result, the inner periphery covering material 3332 is held and temporarily fixed between the inner periphery covering material engaging portion 3323b and the protruding piece 3323c of the attachment 3320, with the inner periphery covering material 3332 positioned in the forward direction by the protruding piece 3323c.

[0274] By interposing the elastic materials 3340, 3350 between the outer peripheral covering material 3331 and the inner peripheral covering material 3332 and the attachment 3320, the outer peripheral covering material 3331 and the inner peripheral covering material 3332 are prevented from coming into direct contact with the attachment 3320 at the ends on the outside side X1. This reduces impact noises and the like when the inner screens 3A, 4A are opened or closed, or when pressure is applied to the entire inner screens 3A, 4A.

[0275] The elastic materials 3340, 3350 are not particularly limited as long as they generate an elastic repulsive force when compressed, and for example, a sealing material using ethylene propylene diene rubber (EPDM) foam can be used. In the present embodiment, the elastic materials 3340, 3350 are formed integrally in an L-shape by the first elastic material 3341, 3351 and the second elastic material 3342, 3352. However, the elastic materials 3340, 3350 may be formed as two separate members, the first elastic material 3341, 3351 and the second elastic material 3342, 3352. The elastic materials 3340, 3350 may be formed long and arranged over the entire length of the attachment 3320 in the extension direction, or may be formed short and arranged in segments at intervals along the extension direction of the attachment 3320.

[0276] As shown in Figures 47 to 49, the outer peripheral wall portion 3322 and the inner peripheral wall portion 3323 of the attachment 3320 are formed with a plurality of protrusions 3320b that protrude toward the outer peripheral covering material 3331 and the inner peripheral covering material 3332, respectively. Each of the protrusions 3320b extends over the entire length of the attachment 3320 in the extension direction. Therefore, when the outer peripheral covering material 3331 and the inner peripheral covering material 3332 are held along the outer peripheral wall portion 3322 and the inner peripheral wall portion 3323 of the attachment 3320, respectively, gaps equal to the protruding height of the protrusions 3320b are formed between the outer peripheral covering material 3331 and the inner peripheral covering material 3332 and the attachment 3320. As a result, as shown in Figures 48 and 49, a ventilation flow path Vc2 is formed between the outer peripheral covering material 3331 and the inner peripheral covering material 3332 and the attachment 3320.

[0277] The second covering material, the indoor covering material 3333, is integrally formed with an indoor portion 3333a, an outer peripheral side portion 3333b extending from the outer peripheral end of the indoor portion 3333a toward the outdoor side X1, and an inner peripheral side portion 3333c extending from the inner peripheral end of the indoor portion 3333a toward the outdoor side X1.

[0278] The indoor side portion 3333a is disposed along the outer surface of the indoor side wall portion 3321 of the attachment 3320. The outer surface of the indoor side portion 3333a facing the indoor side X2 is a flat surface over the entire surface, and forms the visible surface of the indoor side X2 of the joint inner frame 33A.

[0279] The outer circumferential side portion 3333b has a thickness substantially equal to that of the outer circumferential covering material 3331. The end portion of the outer circumferential side portion 3333b on the outdoor side X1 side has an opposing surface 3333d arranged opposite the opposing surface 3331b of the outer circumferential covering material 3331. The opposing surface 3333d is formed over the entire length in the extension direction of the indoor side covering material 3333. This opposing surface 3333d is formed by an inclined surface that is inclined parallel to the inclination of the opposing surface 3331b of the outer circumferential covering material 3331. More specifically, as shown in Figures 47 and 48 , the inner surface of the outer circumferential side portion 3333b facing the attachment 3320 is linearly inclined away from the outer circumferential side wall portion 3322 of the attachment 3320 as it moves toward the outdoor side X1. The opposing surface 3333d is inclined so as to cover the opposing surface 3331b of the outer peripheral side covering material 3331 from the outer surface 3331c side of the outer peripheral side covering material 3331. The opposing surface 3331b of the outer peripheral side covering material 3331 is inclined relative to this opposing surface 3333d so as to slip in from the outer peripheral side wall portion 3322 side of the attachment 3320. The tip of the opposing surface 3333d on the outside side X1 has a notch 3333e that is cut out obliquely in a direction approximately perpendicular to the inclination direction of the opposing surface 3333d.

[0280] The inner circumferential side portion 3333c has a thickness substantially equal to that of the inner circumferential covering material 3312. The end of the inner circumferential side portion 3333c on the outdoor side X1 has an opposing surface 3333f arranged opposite the opposing surface 3332b of the inner circumferential covering material 3332. The opposing surface 3333f is formed over the entire length of the indoor side covering material 3333 in the extension direction. This opposing surface 3333f is formed by an inclined surface that is inclined parallel to the inclination of the opposing surface 3332b of the inner circumferential covering material 3332. More specifically, as shown in Figures 47 and 49 , the inner surface of the inner circumferential side portion 3333c facing the attachment 3320 is linearly inclined away from the inner circumferential side wall portion 3323 of the attachment 3320 as it moves toward the outdoor side X1. The facing surface 3333f is inclined so as to cover the facing surface 3332b of the inner periphery side covering material 332 from the outer surface 3332c side of the inner periphery side covering material 3332. The facing surface 3332b of the inner periphery side covering material 3332 is inclined relative to this facing surface 3333f so as to slip in from the inner periphery side wall portion 3323 side of the attachment 3320. The tip of the facing surface 3333f on the outside side X1 has a notch 3333g that is cut out obliquely in a direction approximately perpendicular to the inclination direction of the facing surface 3333f.

[0281] The indoor-side covering material 3333 is attached to the attachment 3320 from the indoor side X2 via a plurality of double-sided adhesive tapes 3360. More specifically, the indoor-side covering material 3333 is attached so that the indoor-side wall portion 3321 of the attachment 3320 is sandwiched between the outer peripheral side portion 3333b and the inner peripheral side portion 3333c, with a plurality of double-sided adhesive tapes 3360 interposed between the indoor-side portion 3333a and the indoor-side wall portion 3321 of the attachment 3320.

[0282] The outer peripheral side portion 3333b is arranged to face the outer peripheral side wall portion 3322 on the indoor side X2 closer to the protruding piece 3322c of the attachment 3320. The inner peripheral side portion 3333c is arranged to face the inner peripheral side wall portion 3323 on the indoor side X2 closer to the protruding piece 3323c of the attachment 3320. The opposing surfaces 3333d, 3333f of the outer peripheral side portion 3333b and the inner peripheral side portion 3333c are arranged to face and contact the opposing surfaces 3331b, 3332b of the outer peripheral side covering material 3331 and the inner peripheral side covering material 3332.

[0283] At this time, as shown in Figures 48 and 49 , the ends of the outer peripheral side portion 3333b and the inner peripheral side portion 3333c of the indoor-side covering material 3333 on the outdoor side X1 are positioned closer to the outdoor side X1 than the positions of the protruding pieces 3322c, 3323b of the attachment 3320. The opposing surfaces 3333d, 3333f of the outer peripheral side portion 3333b and the inner peripheral side portion 3333c are positioned so as to cover the protruding pieces 3322c, 3323b. The opposing surface 3331b of the outer peripheral side covering material 3331 is inserted and held so as to be sandwiched between the opposing surface 3333d of the outer peripheral side portion 3333b and the outer peripheral side wall portion 3322 of the attachment 3320. The opposing surface 3332b of the inner periphery covering material 3332 is inserted and held so as to be sandwiched between the opposing surface 3333f of the inner periphery side portion 3333c and the inner periphery side wall portion 3323 of the attachment 3320. In this state, the indoor-side covering material 3333 is fixed to the attachment 3320 by screws 3370 that are driven from the outdoor side X1 through the indoor-side wall portion 3321 of the attachment 3320 and into the indoor-side portion 3333a of the indoor-side covering material 3333. The screws 3370 are driven into the upper and lower ends of the attachment 3320 that protrude above and below the joint inner frame body 3310. By fixing the indoor-side covering material 3333 to the attachment 3320, the outer periphery side covering material 3331 and the inner periphery side covering material 3332 are also fixed to the attachment 3320.

[0284] The double-sided adhesive tapes 3360 extend along the extension direction of the joint inner frame 33A and are spaced apart from one another in the left-right direction. This creates a gap between the interior covering material 3333 and the interior wall portion 3321 of the attachment 3320, a gap equivalent to the thickness of the double-sided adhesive tape 3360. This gap forms a ventilation flow path. This allows for drainage even if condensation or other water builds up on the interior covering material 3333, prevents the interior covering material 3333 from coming into contact with the condensation or other water and becoming wet, and promotes drying through ventilation. The double-sided adhesive tapes 3360 may be formed long and placed along the entire length of the joint inner frame 33A in the extension direction, or they may be formed short and placed piecemeal at intervals in the extension direction of the joint inner frame 33A to improve ventilation.

[0285] When the attachment 3320 and the indoor covering material 3333 are fixed together with screws, the member interposed between them may be any gap-forming member having a thickness sufficient to form a gap that constitutes the ventilation flow path, and is not necessarily limited to the double-sided adhesive tape 3360. Examples of gap-forming members other than the double-sided adhesive tape 3360 include elastic members made of tape- or sheet-shaped rubber, resin, or the like.

[0286] 47 to 49, protrusions 3320c that protrude toward the outer periphery and inner periphery, respectively, are formed on both the left and right ends of the indoor-side wall portion 3321 of the attachment 3320. As a result, when the indoor-side covering material 3333 is attached to the attachment 3320, even if the position of the indoor-side covering material 3333 is shifted to the left or right relative to the attachment 3320, the indoor-side covering material 3333 will abut against the protrusions 3320c. This prevents surface contact between the outer periphery side portion 3333b or inner periphery side portion 3333c of the indoor-side covering material 3333 and the outer periphery side wall portion 3322 or inner periphery side wall portion 3323 of the attachment 3320, and ensures a ventilation flow path between them.

[0287] In this way, by fixing the indoor side covering material 3333 to the attachment 3320, the outer side covering material 3331 and the inner side covering material 3332 held on the respective opposing surfaces 3333d, 3333f of the outer side portion 3333b and inner side portion 3333c of the indoor side covering material 3333 are fixed between the respective opposing surfaces 3333d, 3333f and the outer side covering material engagement portion 3322b and inner side covering material engagement portion 3323b of the attachment 3320. The joint inner frame covering material 3330 is composed of three parts: an outer peripheral covering material 3331, an inner peripheral covering material 3332, and an interior peripheral covering material 3333. However, the joint inner frame covering material 3330 can be fixed by simply fixing the interior peripheral covering material 3333 to the attachment 3320 with screws 3370, which simultaneously holds and fixes the interior side X2 ends of the outer peripheral covering material 3331 and the inner peripheral covering material 3332. Therefore, it is not necessary to fix the outer peripheral covering material 3331 and the inner peripheral covering material 3332 to the attachment 3320 with screws, double-sided adhesive tape, or the like. Therefore, even if the covering material is divided into multiple pieces, it can be easily installed with a small number of parts.

[0288] The opposing surfaces 3333d, 3333f of the outer peripheral side portion 3333b and inner peripheral side portion 3333c of the indoor-side covering material 3333 and the opposing surfaces 3331b, 3332b of the outer peripheral side covering material 3331 and inner peripheral side covering material 3332 are all formed by inclined surfaces, so there is no need for complex processing to combine and engage them with each other, and there is no risk of the surfaces becoming unable to butt together due to misalignment caused by manufacturing errors, etc. The opposing surfaces 3331b, 3332b and the opposing surfaces 3333d, 3333f face each other at an angle by the inclined surfaces, so even if a slight gap occurs between the opposing surfaces 3331b, 3332b and the opposing surfaces 3333d, 3333f due to a dimensional misalignment caused by shrinkage, etc. of the outer peripheral side covering material 3331 and the inner peripheral side covering material 3332, there is no risk of the internal attachment 3320 being visible through the gap.

[0289] 48 and 49, notches 3333e, 3333g are provided at the tip of the opposing surface 3333d of the outer peripheral side portion 3333b and the tip of the opposing surface 3333f of the inner peripheral side portion 3333c of the indoor side covering material 3333. As a result, V-shaped grooves 3334, 3334 are formed between the opposing surfaces 3333d, 3333f of the outer peripheral side portion 3333b and the inner peripheral side portion 3333c and the opposing surfaces 3331b, 3332b of the outer peripheral side covering material 3331 and the inner peripheral side covering material 3332. The opposing surfaces 3333d, 3333f of the outer peripheral side portion 3333b and the inner peripheral side portion 3333c do not have sharp edges, so that the edges of the opposing surfaces 3333d, 3333f can be prevented from being damaged when they collide with something during installation of the interior covering material 3333 or during installation of the inner sashes 3A, 4A, or due to deterioration from long-term use. Therefore, the good design provided by the joint inner frame covering material 3330 can be maintained for a long period of time.

[0290] Furthermore, by forming grooves 3334 between the opposing surfaces 3333d, 3333f and the opposing surfaces 3331b, 3332b, even if some gaps occur after combining the outer peripheral covering material 3331 and the inner peripheral covering material 3332 with the interior covering material 3333, only the opposing surfaces 3333d, 3333f, 3331b, 3332b are visible, and the gaps themselves are not noticeable, so the design is not likely to be impaired. Moreover, because the grooves 3334 are located on the left and right visible surfaces of the joint inner frame 33A, they are not noticeable even when viewed from the front of the joint inner frame 33A from the interior side X2.

[0291] [Butt frame body of one of the inner shoji screens] The butt frames 34A and 44A, which are located at the door end of each of the inner shoji screens 3A and 4A, which slide between the same indoor upper rail 21b and indoor lower rail 22b, butt against each other when the inner shoji screens 3A and 4A are closed, as shown in Figures 36, 37 and 42, and form a butt portion 11 in the left-right center of the sliding window 1A.

[0292] As shown in Figure 42, the butt frame 34A of the inner shoji 3A is positioned so that it protrudes to the outside X1 and engulfs the butt frame 44A of the inner shoji 4A, and the butt frame 44A of the inner shoji 4A is positioned so that it protrudes to the inside X2 and engulfs the butt frame 34A of the inner shoji A3. Therefore, the butt portion 11 is formed in a narrow width so that only the butt frame 34A of the inner shoji 3A or the butt frame 44A of the inner shoji 4A is visible. The width of the butt frames 3A4, 44A is approximately the same as the width of the joint inner frames 33A, 43A of the inner shoji 3A, 4A and the joint outer frames 53A, 63A of the outer shoji 5A, 6A, which constitute the joint portion 10, as shown in Figures 36 and 37. Therefore, the sliding window 1A has a good overall design unity when viewed from both the outside X1 and the inside X2, and has good design characteristics.

[0293] As shown in Figure 42, the butt frame 34A of the inner shoji screen 3A is composed of a butt frame main body 3410, a frame covering portion 3420, and a resin cover 3430. The butt frame main body 3410 and the frame covering portion 3420 are made of extruded shapes integrally molded from a metal material such as aluminum.

[0294] The butt frame body 3410 is positioned opposite the end of the butt joint 11 side of the panel G of the inner shoji 3A, and is formed in a flat plate shape spanning the entire length of the butt frame 34A in the extension direction. A panel support part 3411 is integrally formed at the end of the outside X1 side of the butt frame body 3410, protruding inward to support the outside X1 surface of the panel G. The end 3412 of the inside X2 side of the butt frame body 3410 protrudes further toward the inside X2 side than the inside X2 surface of the panel G.

[0295] A plate-shaped protrusion 3413 that protrudes outward toward the inner shoji screen 4A is provided at approximately the center of the butt stile body 3410 in the projection direction. The protrusion 3413 extends over the entire length of the butt stile body 3410 in the extension direction.

[0296] The frame covering portion 3420 protrudes from the butt frame main body 3410 toward the outdoor side X1. The frame covering portion 3420 has a hollow structure and is composed of an inner circumferential wall portion 3421, an outdoor side wall portion 3422, an outer circumferential wall portion 3423, and an indoor side wall portion 3424. The inner circumferential wall portion 3421 extends from the inner circumferential end of the panel support portion 3411 toward the outdoor side X1. The outdoor side wall portion 3422 extends from the outdoor side X1 end of the inner circumferential wall portion 3421 toward the outdoor side. The outer circumferential wall portion 3423 bends and extends toward the indoor side X2 and the inner circumferential side from a position slightly inner than the outer circumferential end portion 3422a of the outdoor side wall portion 3422. The indoor side wall portion 3424 connects the indoor side X2 end of the outer peripheral side wall portion 3423 to the outdoor side X1 end of the butt frame main body 3410. The frame covering portion 3420 has a hollow portion S34 inside surrounded by the inner peripheral side wall portion 3421, the outdoor side wall portion 3422, the outer peripheral side wall portion 3423 and the indoor side wall portion 3424.

[0297] As shown in Figure 42, the outer peripheral end 3422a of the exterior wall portion 3422 is bent in an L-shape toward the interior side X2, extending to a position that covers the spacer Gb of the panel G of the inner shoji A4, which is abutted against the inner shoji 3A and closed, from the exterior side X1. As a result, the frame covering portion 3420 of the butt frame 34A covers the butt frame 44A of the inner shoji 4A, which is abutted against the inner shoji 3A and closed, from the exterior side X1. This improves the design of the sliding window 1A when viewed from the exterior side X1. The outer wall portion 3423 bends and extends from a position slightly more inward than the outer end portion 3422a of the outdoor wall portion 3422 toward the indoor side X2 and the inner side, thereby forming a hand insertion space 3400 between the visible surface on the outdoor side X1 of the butt frame 44A of the inner shoji screen 4A for opening and closing the inner shoji screen 4A from the outdoor side X1.

[0298] The resin cover 3430 is attached to the end 3412 of the butt stile body 3410 on the indoor side X2, over the entire length of the butt stile 34A in the extension direction. The resin cover 3430 is integrally configured with a cover body portion 3431, an engagement portion 3432, and a surface material support portion 3433. The cover body portion 3431 forms the visible surface of the butt stile 34A on the indoor side X2, and extends inward from the end 3412 of the butt stile body 3410 on the indoor side X2. The engagement portion 3432 is located at the outer end of the cover body portion 3431. The resin cover 3430 is attached to the butt stile body 3410 by engaging the engagement portion 3432 with the end 3412 of the butt stile body 3410 on the indoor side X2. The panel support portion 3433 extends from the inner peripheral end of the cover main body portion 3431 toward the outdoor side X1. The end of the panel G on the butt stile 34A side is accommodated and supported between the panel support portion 3411 of the butt stile main body 3410 and the panel support portion 3433 of the resin cover 3430.

[0299] [Butt frame of the other inner shoji screen] As shown in Figure 42, the butt frame 44A of the inner shoji screen 4A is composed of a butt frame body 4410 made of an extruded metal material such as aluminum, and a frame covering part 4420 arranged on the indoor side X2 of the butt frame body 4410. The butt frame body 4410 and the frame covering part 4420 are connected by a pair of bridge members 4430 made of heat insulating material such as resin.

[0300] (Butt frame body) The butt frame body 4410 is positioned facing the end of the butt portion 11 side of the panel G of the inner shoji screen 4A, and is formed in a flat plate shape spanning the entire length of the butt frame 44A in the extension direction. A panel support portion 4411 is integrally formed at the end of the outside surface X1 of the butt frame body 4410, protruding inward to support the outside surface X1 of the panel G. The inner end of the panel support portion 4411 is bent in an L-shape toward the outside surface X1. This forms a handle portion 4411a on the visible surface of the outside surface X1 of the butt frame 44A. The handle portion 4411a is formed in an elongated shape along the extension direction of the butt frame 44A.

[0301] Furthermore, an outdoor extension portion 4412 is integrally formed on the outdoor side X1 end of the butt frame body 4410, protruding toward the outer periphery opposite the panel support portion 4411. As shown in FIG. 42 , when the inner shoji screens 3A and 4A are butted together, the outdoor extension portion 4412 is positioned approximately parallel to and facing the indoor side wall portion 3424 on the indoor side X2 of the indoor side wall portion 3424 of the frame covering portion 3420 of the butt frame 34A of the inner shoji screen 3A. A fin member 4412a is attached to the outer periphery end of the outdoor extension portion 4412. The fin member 4412a is elongated and extends in the extension direction of the butt frame 44A. The fin member 4412a protrudes from the outdoor extension portion 4412 toward the indoor side X2. When the inner shoji screens 3A and 4A are butted together, the fin member 4412a contacts the protrusion 3413 of the inner shoji screen 3A from the outside X1, maintaining an airtight state between the inner shoji screen 3A and the butt frame 34A.

[0302] An indoor extension part 4413 is provided at the indoor side X2 end of the butt frame body 4410, protruding toward the outer periphery of the inner shoji screen 4A at the same protruding height as the outdoor extension part 4412. A pair of bridge parts 4430 that connect to the frame covering part 4420 are attached to the indoor extension part 4413.

[0303] The butt frame body 4410 has a pulling member 4414 between the outdoor extension portion 4412 and the indoor extension portion 4413. When the inner shoji screens 3A and 4A are butted against each other, the pulling member 4414 engages with the protrusion portion 3413 of the butt frame 34A of the inner shoji screen 3A so as to clamp it from the indoor / outdoor direction.

[0304] (Stile covering portion) The stile covering portion 4420 protrudes from the butt stile body 4410 toward the indoor side X2 via a pair of bridge portions 4430. The stile covering portion 4420 is positioned so as to cover the area from the indoor side X2 extending from the spacer Gb of the surface material G of the inner stile 3A to the spacer Gb of the surface material G of the outer stile 4A when the inner stiles 3A and 4A are butted against each other.

[0305] As shown in Figure 42, the stile covering portion 4420 is composed of a stile covering portion main body 4440, an attachment 4450, and a butt stile covering material 4460.

[0306] The frame covering body 4440 is made of an extruded profile made of metal such as aluminum, and has a hollow structure composed of an outdoor wall portion 4441, an outer peripheral wall portion 4442, an indoor wall portion 4443, an inner peripheral wall portion 4444, and an outer peripheral extension portion 4445. The frame covering body 4440 has a hollow portion S44 inside surrounded by the outdoor wall portion 4441, the outer peripheral wall portion 4442, the indoor wall portion 4443, and the inner peripheral wall portion 4444.

[0307] The outdoor wall portion 4441 is arranged parallel to the indoor extension portion 4413 of the butt stile main body 4410, and a pair of bridge portions 4430 that connect to the butt stile main body 4410 are attached. The outer peripheral side wall portion 4442 extends from the outer peripheral end of the outdoor wall portion 4441 toward the indoor side X2. The indoor side wall portion 4443 extends parallel to the outdoor wall portion 4441 from the indoor side X2 end of the outer peripheral side wall portion 4442 toward the inner peripheral side. The inner peripheral side wall portion 4444 extends parallel to the outdoor wall portion 4442 from the inner peripheral end of the indoor side wall portion 4443 toward the outdoor side X1. The outer peripheral extension portion 4445 extends from near the indoor side X2 end of the outer peripheral side wall portion 4442 toward the outer peripheral side. The outer peripheral extension portion 4445 is positioned so as to cover and conceal the resin cover 3430 on the butt frame 34A of the inner shoji 3A from the inside X2 when the inner shoji 3A and 4A are butted against each other.

[0308] An elastic member 4446 is attached to the exterior side X1 surface of the outer peripheral extension 4445. The elastic member 4446 has a base 4446a made of hard resin that engages with and is attached to the outer peripheral extension 4445, and an elastic member body 4443b made of soft resin or rubber that is integrally formed with the base 4446a and protrudes toward the exterior side X1. The elastic member 4446 has a hollow structure with a hollow portion 4446c formed inside. The elastic member body 4443b is integrally formed with multiple protrusions 4446d that protrude toward the exterior side X1. As shown in Figure 42, when the inner shoji screens 3A and 4A are butted together, the protrusions 4446d of the elastic member 4446 contact the resin cover 3430 on the butt stile 34A of the inner shoji screen 3A, maintaining an airtight seal between the butt stile 34A of the inner shoji screen 3A and the elastic member 4446. The elastic member 4446 is positioned so as to essentially fill the space between the resin cover 3430 of the butt frame 34A of the inner shoji screen 3A and the outer peripheral extension portion 4445 of the inner shoji screen 4A, and therefore, in combination with the fact that the elastic member 4446 has a hollow portion 4446c, insulation in the space is also ensured.

[0309] (Attachment) The attachment 4450 is a component that makes up the butt stile 44A. The attachment 4450 is arranged so as to cover the visible surface and the visible surface of the butt stile main body 4440 over the entire length of its extension direction. The vertical length of the attachment 4450 is longer than the vertical length of the butt stile main body 4440. Therefore, at least one of the upper and lower ends of the attachment 4450 is arranged so as to protrude above or below the upper or lower end of the butt stile main body 4440 while covering the butt stile main body 4440.

[0310] 42 and 50, the attachment 4450 is configured to have an indoor side wall portion 4451 arranged along the indoor side wall portion 4443 and the outer peripheral extension portion 4445 of the butt frame body 4440, and an inner side wall portion 4452 extending in the forward direction along the inner side wall portion 4444 of the butt frame body 4440. The inner side wall portion 4452 extends from the inner end of the indoor side wall portion 4451 toward the outdoor side X1.

[0311] As shown in Figures 42 and 50, the outer peripheral end of the indoor wall portion 4451 has an outer peripheral end portion 4451a bent in an L-shape toward the outdoor side X1. The outer peripheral end portion 4451a is provided with a first engagement portion 4451b that protrudes inward from a midpoint in the protruding height direction toward the outdoor side X1. As shown in Figures 42, 50, and 51, the inner peripheral wall portion 4452 is provided with a second engagement portion 4452a that protrudes toward the outdoor side X1 near the outdoor side X1 end. The first engagement portion 4451b engages with an engagement piece 4445a that protrudes toward the indoor side X2 from the outer peripheral end of the outer peripheral extension portion 4445 of the butt frame main body 4440. The second engagement portion 4452a engages with an engagement protrusion 4444a provided at the outdoor side X1 end of the inner peripheral wall portion 4444 of the butt frame main body 4440. As a result, the attachment 4450 is attached to the butt frame body 4440 so as to cover the visible surface on the indoor side X2 of the butt frame body 4440 and the visible surface on the inner periphery side.

[0312] 42 and 50, a protrusion 4451c that protrudes toward the outdoor side X1 is provided on the outdoor side wall 4451 of the attachment 4450. When the attachment 4450 is attached to the butt frame body 4440, the protrusion 4451c is arranged so as to follow the outer peripheral surface of the outer peripheral side wall 4442 on the indoor side X2 of the outer peripheral extension 4445 of the butt frame body 4440.

[0313] As shown in Figures 50 and 51, a protrusion 4450a protruding toward the butt frame body 4440 is formed on the inner surface of the indoor side wall 4451 of the attachment 4450. The protrusion 4450a extends the entire length of the attachment 4450 in the extension direction. When the butt frame body 4440 and the attachment 4450 are assembled, a gap equal to the protruding height of the protrusion 4450a is formed between the butt frame body 4440 and the attachment 4450. This forms a ventilation flow path Vc3 between the butt frame body 4440 and the attachment 4450, and insulates the two. Furthermore, as shown in Figure 51, the protrusion 4450a is positioned to fit into a recess 4443a formed on the visible surface of the indoor side X2 of the indoor side wall 4443 of the butt frame body 4440.

[0314] The interior wall portion 4451 of the attachment 4450 is positioned in the left-right direction by the protrusions 4451c and 4450a. This prevents the interior wall portion 4451 of the attachment 4450 from shifting out of position when the inner sash 4A is opened by gripping the butt stile 44A.

[0315] A panel support portion 4453 is provided at the end of the inner peripheral wall portion 4452 that is closer to the exterior side X1 than the second engagement portion 4452a. As shown in FIG. 50 , the panel support portion 4453 is composed of a first end portion 4453a that extends more outer than the inner peripheral wall portion 4452, and a second end portion 4453b that extends more inner than the inner peripheral wall portion 4453. The first end portion 4453a is positioned in contact with or close to the bridge portion 4430. The end portion of the panel G on the butt stile 44A side is accommodated and supported between the panel support portion 4411 of the butt stile main body 4440 and the panel support portion 4453 of the attachment 4450.

[0316] 50 , an inner covering material engaging portion 4452b constituted by a second end 4453b of the panel support portion 4453 is provided at the end of the inner wall portion 4452 on the outdoor side X1. The inner covering material engaging portion 4452b is formed in an L-shape that bends toward the indoor side X2. A protruding piece 4452c that protrudes innerward is provided near the end of the inner wall portion 4452 on the indoor side X2, specifically at a position slightly toward the outdoor side X1 of the connection between the inner wall portion 4452 and the indoor side wall portion 4451.

[0317] The attachment 4450 is made of, for example, metal or resin. When the attachment 4450 is made of metal, it is made of, for example, aluminum, but is not limited to, aluminum. Because the attachment 4450 is made of metal or resin, the processing precision of the attachment 4450 as a panel support can be increased compared to when the indoor side X2 of the panel G is supported by a wooden panel support, and deterioration of the attachment 4450 over time can be suppressed. As a result, it is possible to prevent the panel G from easily coming off the butt stile 44A. When the attachment 4450 is made of resin, the side of the butt stile covering material 4460 (described below) facing the attachment 4450 can be prevented from being cooled by cold air from the outdoor side X1 in winter, thereby improving insulation.

[0318] (Butt frame covering material) The butt frame covering material 4460 is a frame covering material that forms the visible surface and the visible surface on the indoor side X2 of the butt frame 44A. The butt frame covering material 4460 covers the indoor side X2 surface of the attachment 4450 over the entire length in the extension direction of the attachment 4450 so that the attachment 4450 is not visible from the indoor side X2. Specifically, the butt frame covering material 4460 is arranged so as to cover the visible surface and the visible surface on the indoor side X2 of the attachment 4450. The butt frame covering material 4460 is a decorative material that improves the design of the sliding window 1A when viewed from the interior side X2, and in order to ensure uniformity in the design of the sliding window 1A, the same non-metallic material is used as the upper frame covering material 1300 provided on the above-mentioned upper frames 31A, 41A, 51A, 61A. In this embodiment, the butt frame covering material 4460 is made of the same wood as the upper frame covering material 1300.

[0319] The butt stile covering material 4460 is made up of two divided covering materials that are respectively arranged along the outer surfaces of the indoor side wall portion 4451 and the inner peripheral side wall portion 4452 of the attachment 4450. Specifically, the butt stile covering material 4460 is composed of an inner peripheral side covering material 4461 that is a first covering material and an indoor side covering material 4462 that is a second covering material.

[0320] The inner covering material 4461, which is the first covering material, is formed in a flat plate shape and is disposed along the outer surface of the inner wall portion 4452 of the attachment 4450. The width of the inner covering material 4461 in the projection direction is approximately equal to the dimension between the inner covering material engaging portion 4452b and the protruding piece 4452c provided on the inner wall portion 4452 of the attachment 4450. As shown in Figures 50 and 51 , a notch 4461a, which is cut out in a stepped shape so as to open toward the inner side, is formed at the end of the inner covering material 4461 on the outside side X1, over the entire length of the inner covering material 4461 in the extension direction.

[0321] As shown in Figures 50 and 51 , the end of the inner periphery covering material 4461 on the indoor side X2 has an opposing surface 4461b that faces the end of the inner periphery side 4462b of the indoor side covering material 4462 (described later) on the outdoor side X1. The opposing surface 4461b is formed over the entire length of the inner periphery covering material 4461 in the extension direction. This opposing surface 4461b is formed as an inclined surface. Specifically, the opposing surface 4461b is inclined obliquely linearly so as to taper toward the indoor side X2. More specifically, the opposing surface 4461b is notched obliquely so that an outer surface 4461c facing the outer periphery of the inner periphery covering material 4461 approaches the inner periphery wall portion 4452 of the attachment 4450 as it approaches the indoor side X2. The inclination angle is not particularly limited, but may be, for example, 45° with respect to the outer surface 4461c of the inner periphery covering material 4461. The tip of the opposing surface 4461b on the indoor side X2 has an indoor side end surface 4461d which is a flat surface perpendicular to the outer surface 4461c.

[0322] The inner covering material 4461 is positioned between the inner covering material engaging portion 4452b and the protruding piece 4452c by hooking and engaging the cutout portion 4461a with the inner covering material engaging portion 4452b of the attachment 4450 from the indoor side X2 and abutting the indoor side end surface 4461d against the protruding piece 4452c of the attachment 4450. At this time, an elastic material 4470 is interposed in a compressed state between the inner covering material 4461 and the attachment 4450.

[0323] The elastic member 4470 is the same as the elastic members 3340, 3350 provided on the joint inner frame 33A, and is formed in an L shape integrally having a first elastic member 4471 and a second elastic member 4472. As shown in Figures 50 and 51 , the first elastic member 4471 is sandwiched and compressed between the outdoor-side end face 4461e, which is a flat surface of the inner covering member 4461, and the inner covering member engaging portion 4452b of the attachment 4450. The second elastic member 4472 is sandwiched and compressed between the outdoor-side X1 end of the inner surface 4461f, which faces the inner side, of the inner covering member 4461, and the outdoor-side X1 end of the inner wall portion 4452 of the attachment 4450.

[0324] 51 , the first elastic member 4471 applies a pressing force F1 toward the indoor side X2 to the inner periphery side covering material 4461 due to the elastic repulsive force generated by being sandwiched between the inner periphery side covering material 4461 and the attachment 4450, and urges the indoor side end surface 4461d of the inner periphery side covering material 4461 in a direction to abut against the protruding piece 4452c while maintaining the engagement between the inner periphery side covering material 4461 and the inner periphery side covering material engagement portion 4452b. As a result, the inner periphery side covering material 4461 is positioned in the projection direction by the protruding piece 4452c, and therefore the position of the inner periphery side covering material 4461 is consistently aligned regardless of manufacturing variations in the projection dimensions of the inner periphery side covering material 4461, improving the design.

[0325] Furthermore, the second elastic material 4472 applies a pressing force F3 toward the inner circumference to the end of the inner circumference covering material 4461 on the outdoor side X1 due to the elastic repulsive force generated by being sandwiched between the inner circumference covering material 4461 and the attachment 4450, as shown in Fig. 51, and urges the end of the inner circumference covering material 4461 on the outdoor side X1 in a direction to engage with the inner circumference covering material engaging portion 4452b. As a result, the inner circumference covering material 4461 is held and temporarily fixed between the inner circumference covering material engaging portion 4452b and the protruding piece 4452c of the attachment 4450, with the inner circumference covering material 4461 positioned in the forward direction by the protruding piece 4452c.

[0326] By interposing the elastic material 4470 between the inner periphery covering material 4461 and the attachment 4450, the inner periphery covering material 4461 is prevented from coming into direct contact with the attachment 4450 at the end of the outer side X1 of the room. This reduces impact noises and the like when the inner shoji screens 3A and 4A are opened or closed, or when pressure is applied to the entire inner shoji screen 4A.

[0327] In this elastic member 4470, the first elastic member 4471 and the second elastic member 4472 are integrally formed in an L-shape, but the elastic member 4470 may be made up of two separate members, the first elastic member 4471 and the second elastic member 4472. The elastic member 4470 may be formed in a long length and arranged over the entire length of the attachment 4450 in the extension direction, or may be formed in a short length and arranged in segments at intervals along the extension direction of the attachment 4450.

[0328] 50 and 51 , the inner wall 4452 of the attachment 4450 is formed with a plurality of protrusions 4450b that protrude toward the inner covering material 4461. Each of the protrusions 4450b extends over the entire length of the attachment 4450 in the extension direction. Therefore, when the inner covering material 4461 is held along the inner wall 4452 of the attachment 4450, a gap equal to the protruding height of the protrusions 4450b is formed between the inner covering material 4461 and the attachment 4450. As a result, as shown in FIG. 51 , a ventilation flow path Vc4 is formed between the inner covering material 4461 and the attachment 4450.

[0329] The second covering material, the indoor side covering material 4462, is formed in an L shape having an indoor side portion 4462a and an inner side portion 4462b that extends from the inner end of the indoor side portion 4462a toward the outdoor side X1.

[0330] The indoor side portion 4462a is disposed along the outer surface of the indoor side wall portion 4451 of the attachment 4450. The outer surface of the indoor side portion 4462a facing the indoor side X2 is a flat surface over its entire surface, and forms the visible surface of the indoor side X2 of the butt frame 44A.

[0331] The inner circumferential side portion 4462b has approximately the same thickness as the inner circumferential covering material 4461. The end portion of the inner circumferential side portion 4462b on the outdoor side X1 has an opposing surface 4462c arranged opposite the opposing surface 4461b of the inner circumferential covering material 4461. The opposing surface 4462c is formed over the entire length of the indoor side covering material 4462 in the extension direction. This opposing surface 4462c is formed by an inclined surface that is inclined parallel to the inclination of the opposing surface 4461b of the inner circumferential covering material 4461 at the same angle. More specifically, as shown in Figures 50 and 51 , the opposing surface 4462c is formed by linearly inclining the inner surface side of the inner circumferential side portion 4462b facing the attachment 4450 so as to move away from the inner circumferential side wall portion 4452 of the attachment 4450 as it moves toward the outdoor side X1. The opposing surface 4462c is inclined so as to cover the opposing surface 4461b of the inner periphery side covering material 4461 from the outer surface 4461c side of the inner periphery side covering material 4461. The opposing surface 4461b of the inner periphery side covering material 4461 is inclined relative to this opposing surface 4462c so as to slip in from the inner periphery side wall portion 4452 side of the attachment 4450. The tip of the opposing surface 4462c on the outside side X1 has a notch 4462d that is cut out obliquely in a direction approximately perpendicular to the inclination direction of the opposing surface 4462c.

[0332] The indoor-side covering material 4462 is attached to the attachment 4450 from the indoor side X2 with a plurality of double-sided adhesive tapes 4480 interposed therebetween. More specifically, the indoor-side covering material 4462 is attached between the indoor side portion 4462a and the indoor side wall portion 4451 of the attachment 4450 with a plurality of double-sided adhesive tapes 4480 interposed therebetween. The inner peripheral side portion 4462b is positioned so as to face the inner peripheral side wall portion 4452 on the indoor side X2 more closely than the protruding piece 4452c of the attachment 4450. The opposing surface 4462c of the inner peripheral side portion 4462b is positioned so as to face and contact the opposing surface 4461b of the inner peripheral covering material 4461.

[0333] At this time, as shown in FIG. 51 , the end of the inner circumferential portion 4462b of the indoor-side covering material 4462 on the outdoor side X1 is positioned closer to the outdoor side X1 than the position of the protruding piece 4452c of the attachment 4450. The opposing surface 4462c of the inner circumferential portion 4462b is positioned so as to cover the protruding piece 4452c. The opposing surface 4461b of the inner circumferential covering material 4461 is inserted and held so as to be sandwiched between the opposing surface 4462c of the inner circumferential portion 4462b and the inner circumferential wall portion 4452 of the attachment 4450. In this state, the indoor-side covering material 4462 is fixed to the attachment 4450 by a screw 4490 that is driven from the outdoor side X1, penetrates the indoor-side wall portion 4451 of the attachment 4450, and into the indoor-side portion 4462a of the indoor-side covering material 4462. The screws 4490 are driven into the upper and lower ends of the attachments 4450 that protrude above and below the butt stile body 4440. By fixing the interior side covering material 4462 to the attachment 4450, the inner circumference side covering material 4461 is also fixed to the attachment 4450.

[0334] The double-sided adhesive tapes 4480 extend along the extension direction of the butt stile 44A and are spaced apart from one another in the left-right direction. Therefore, a gap corresponding to the thickness of the double-sided adhesive tape 4480 is formed between the indoor-side covering material 4462 and the indoor-side wall portion 4451 of the attachment 4450. This gap forms a ventilation flow path. This allows for drainage even if condensation or the like occurs on the indoor-side wall portion 4451, prevents the indoor-side covering material 4462 from coming into contact with the condensation or the like and getting wet, and also promotes drying through ventilation. The double-sided adhesive tapes 4480 may be formed long and disposed along the entire length of the butt stile 44A in the extension direction, or they may be formed short and disposed piecemeal at intervals in the extension direction of the butt stile 44A to improve ventilation.

[0335] When the attachment 4450 and the interior covering material 4462 are fixed together with screws, the intervening member placed between them may be any gap-forming member having a thickness sufficient to form a gap that forms the ventilation flow path, and is not necessarily limited to the double-sided adhesive tape 4480. Examples of gap-forming members other than the double-sided adhesive tape 4480 include elastic members made of tape- or sheet-shaped rubber, resin, or the like.

[0336] 42 , 50 , and 51 , a protrusion 4450c protruding toward the indoor side X2 is formed at the outer peripheral end of the indoor side wall 4451 of the attachment 4450, and a protrusion 4450d protruding toward the inner peripheral end of the indoor side wall 4451 is formed at the inner peripheral end of the indoor side wall 4451. As a result, when the indoor side covering material 4462 is attached to the attachment 4450, the outer peripheral end of the indoor side covering material 4462 abuts against the protrusion 4450c, thereby ensuring a ventilation flow path between the indoor side covering material 4462 and the indoor side wall 4451 of the attachment 4450. Because the ventilation flow path is blocked by the protrusion 4450c at the outer peripheral end of the indoor side covering material 4462, it is less visible from the indoor side X2, improving the design. Furthermore, when attaching the indoor side covering material 4462 to the attachment 4450, even if the indoor side covering material 4462 shifts outward relative to the attachment 4450, it will abut against the protrusion 4450d, thereby avoiding surface contact between the inner side portion 4462b of the indoor side covering material 4462 and the inner side wall portion 4452 of the attachment 4450, and ensuring a ventilation flow path between the two.

[0337] By fixing the indoor-side covering material 4462 to the attachment 4450 in this manner, the inner-side covering material 4461, which is held on the opposing surface 4462c of the inner peripheral side portion 4462b of the indoor-side covering material 4462, is fixed between the opposing surface 4462c and the inner-side covering material engagement portion 4452b of the attachment 4450. The butt stile covering material 4460 is composed of two parts, the inner-side covering material 4461 and the indoor-side covering material 4462, but the fixing work of the butt stile covering material 4460 can be done simply by fixing the indoor-side covering material 4462 to the attachment 4450 with the screws 4490, which can simultaneously hold and fix the indoor-side X2 end of the inner-side covering material 4461, so it is not necessarily necessary to fix the inner-side covering material 4461 to the attachment 4450 with screws, double-sided adhesive tape, etc. Therefore, even if the covering material is divided into multiple pieces, it can be easily attached with a small number of parts.

[0338] The opposing surface 4462c of the inner peripheral portion 4462b of the indoor-side covering material 4462 and the opposing surface 4461b of the inner peripheral-side covering material 4461 are both formed by inclined surfaces, so there is no need for complex processing to combine and engage them with each other, and there is no risk of the surfaces becoming unable to butt together due to misalignment caused by manufacturing errors, etc. Because the opposing surfaces 4461b and 4462c face each other at an angle due to the inclined surfaces, even if a slight gap occurs between the opposing surfaces 4461b and 4462c due to a dimensional misalignment caused by shrinkage of the inner peripheral-side covering material 4461, there is no risk that the internal attachment 4450 will be visible through the gap.

[0339] As shown in Figure 51, a notch 4462d is provided at the tip of the facing surface 4462c of the inner peripheral side portion 4462b of the indoor-side covering material 4462, thereby forming a V-shaped groove 4463 between the facing surface 4462c of the inner peripheral side portion 4462b and the facing surface 4461b of the indoor-side covering material 4461. Because the facing surface 4462c of the inner peripheral side portion 4462b does not have a sharp tip, damage to the tip of the facing surface 4462c can be prevented when the tip of the facing surface 4462c collides with something during installation of the indoor-side covering material 4462 or installation of the inner shoji screen 4A, or when deterioration occurs due to long-term use. This allows the good design of the butt frame covering material 4460 to be maintained for a long period of time.

[0340] Furthermore, by forming the groove 4463 between the opposing surfaces 4461b and 4462c, it is difficult to see the change in the gap that occurs when the inner covering material 4461 and the indoor covering material 4462 are combined with each other, and even if a small gap occurs between the opposing surfaces 4461b and 4462c, the design is unlikely to be impaired. Moreover, because the groove 4463 is located on the visible surface of the butt stile 44A, it is not noticeable even when the butt stile 44A is viewed from the front from the indoor side X2.

[0341] [Outer door frame for joining the outer screen] The outer door frame 5A3, 63A, which is located on the end of each of the outer and inner screens 5A and 6A, and which slide between the same outdoor upper rail 21a and outdoor lower rail 22a, is positioned so as to overlap the outdoor side X1 with the inner door frame 33A, 43A of the inner screens 3A, 4A when the inner screens 3A, A4 and outer screens 5A, 6A are closed, as shown in Figures 36, 37 and 41, and forms the joining section 10. Figure 41 shows the outer frame 53A of the outer shoji screen 5A, but the outer frame 63A of the outer shoji screen 6A is arranged symmetrically to Figure 41, so the illustration and explanation of the outer frame 63A of the outer shoji screen 6A corresponding to Figure 41 will be omitted below, and the explanation of the outer frame 53A of the outer shoji screen 5A will be used instead.

[0342] As shown in Figure 41, the outer frame 53A of the outer screen 5A includes a frame body 5310 made of a metal such as aluminum, and a resin cover 5320. The frame body 5310 includes an exterior wall 5311, an interior wall 5312, an outer wall 5313, and an inner wall 5314, forming a hollow section S53 within the space surrounded by these components. The frame body 5310 is configured to protrude toward the interior side X2 beyond the panel G. The exterior wall 5311 extends inward beyond the inner wall 5314 and is integral with a panel support section 5315 that supports the exterior surface X1 of the panel G.

[0343] Near the outer edge of the interior wall portion 5312, a protrusion portion 5316 is formed, which is bent in an L-shape toward the interior side X2 and the inner periphery. As shown in Figure 41, when the inner shoji screens 3A, 4A and the outer shoji screens 5A, 6A are closed, the protrusion portion 5316 is inserted into and engages with a recess 3311a provided in the inner frame 33A of the inner shoji screen 3A, forming a labyrinth structure. A fin member 5317 is attached further outward from the outer frame 5310, protruding toward the interior side X2. When the inner shoji screens 3A, 4A and the outer shoji screens 5A, 6A are closed, the fin member 5317 abuts against the panel support portion 3317 of the inner frame 33A of the inner shoji screen 3A from the outside X1, maintaining an airtight state.

[0344] The resin cover 5320 is attached to the end of the inner peripheral wall portion 5314 on the indoor side X2. The resin cover 5320 is integrally formed by a cover main body portion 5321, an engagement portion 5322, and a panel support portion 5323. The cover main body portion 5321 extends from the end of the inner peripheral wall portion 5314 on the indoor side X2 toward the inner peripheral side. The cover main body portion 5321 has a hollow structure and, together with the indoor side wall portion 5312 of the joint stile main body 5310, forms the visible surface of the indoor side X2 of the joint stile 53A. The engagement portion 5322 is located at the outer peripheral end of the cover main body portion 5321. The resin cover 5320 is attached to the indoor side wall portion 5312 by the engagement portion 5322. The panel support portion 5323 extends from the inner peripheral end of the cover main body portion 5321 toward the exterior side X1. The end of the panel G on the side of the joint outer frame 53A is accommodated and supported between the panel support portion 5315 of the joint outer frame main body 5310 and the panel support portion 5323 of the resin cover 5320.

[0345] [Outer door frame] The outer door frame 54A, 64A of the outer door frame 5A, 6A has a door frame main body 5410, 6410, an attachment 5420, 6420, and a door frame covering material 5430, 6430, as shown in Figures 39 and 40. The door frame 54A, 64A has the same structure and is arranged symmetrically.

[0346] (Door stile body) The door stile body 5410, 6410 is made of an extruded metal such as aluminum and is configured with an exterior wall portion 5411, 6411, an interior wall portion 5412, 6412, an outer peripheral wall portion 5413, 6413, and an inner peripheral wall portion 5414, 6414, and has a hollow portion S54, S64 inside surrounded by these. The exterior wall portion 5411, 6411 has a shape that is partially recessed toward the interior side X2. As a result, the exterior wall portion 5411, 6411 forms a handle when opening and closing the outer shoji screen 5A, 6A from the exterior side X1.

[0347] The outdoor wall portions 5411, 6411 extend more inward than the inner wall portions 5414, 6414 and integrally have panel support portions 5415, 6415 that support the outdoor side X1 surface of the end portion of the panel G on the door frame 54A, 64A side.

[0348] An outdoor extension portion 5416, 6416 is integrally formed at the end of the outer peripheral wall portion 5413, 6413 on the outdoor side X1, protruding toward the outer periphery opposite the panel support portion 5415, 6415. Fin members 5416a, 6416a are attached to the outdoor extension portion 5416, 6416. The fin members 5416a, 6416a are elongated and extend in the direction of extension of the door end frame 54A, 64A. The fin members 5416a, 6416a protrude from the outdoor extension portion 5416, 6416 toward the indoor side X2. When the outer shoji screens 5A, 6A are closed, the fin members 5416a, 6416a contact the engaging protrusions 234, 244 of the vertical frames 23, 24 from the outside X1, maintaining an airtight state between them and the vertical frames 23, 24.

[0349] An indoor side extension portion 5417, 6417 that protrudes toward the outer periphery in parallel with the outdoor side extension portion 5416, 6416 is integrally provided at the indoor side X2 end of the outer peripheral side wall portion 5413, 6413. A pulling member 5418, 6418 is provided between the outdoor side extension portion 5416, 6416 and the indoor side extension portion 5417, 6417.

[0350] (Attachment) The attachments 5420, 6420 are components that make up the door end frames 54A, 64A. The attachments 5420, 6420 are arranged to cover the visible surface of the door end frame main body 5410, 6410 on the indoor side X2 over the entire length of their extension direction. Figure 52 shows the attachment 5420 of the door end frame 54A. The attachment 6420 of the door end frame 64A is arranged symmetrically to the attachment 5420.

[0351] As shown in Figures 39, 40, and 52, the attachments 5420, 6420 have rectangular hollow portions 5422, 6422 at the outer peripheral end of the flat plate-shaped attachment body 5421, 6421. The attachment body 5421, 6421 is provided with outdoor outer peripheral engaging portions 5423, 6423 and outdoor inner peripheral engaging portions 5424, 6424 that protrude in an L-shape toward the outdoor side X1. The outdoor outer peripheral engaging portions 5423, 6423 engage with the outer peripheral end of the indoor side extending portions 5417, 6417 of the door stile bodies 5410, 6410. The outdoor inner peripheral engaging portion 5424, 6424 engages with an L-shaped piece 5412a, 6412a provided on the inner peripheral end of the indoor side wall portion 5412, 6412 of the door end frame main body 5410, 6410, protruding toward the indoor side X2. As a result, the attachment 5420, 6420 is attached to the door end frame main body 5410, 6410 so as to cover the visible surface of the indoor side X2 of the door end frame main body 5410, 6410. The hollow portion 5422, 6411 is arranged on the indoor side X2 of the indoor side extension portion 5417, 6417 of the door end frame main body 5410, 6410, as shown in Figures 39 and 40 .

[0352] The attachment main body 5421, 6421 extends further inward than the outdoor-side inner peripheral engagement portion 5424, 6424. As a result, the attachment 5420, 6420 forms a panel support portion 5425, 6425 that supports the indoor-side X2 surface of the panel G. The panel G is housed and supported between the panel support portion 5415, 6415 and the panel support portion 5425, 6425.

[0353] The attachments 5420, 6420 have a pair of protruding pieces 5426, 5426, 6426, 6426 at their outer end that protrude parallel to the inside of the room X2, and have protruding pieces 5427, 6427 at their inner end that protrude parallel to the protruding pieces 5426, 6426 towards the inside of the room X2.

[0354] The attachments 5420, 6420 are made of, for example, metal or resin. When the attachments 5420, 6420 are made of metal, they are made of, for example, aluminum, but are not limited to, aluminum. Because the attachments 5420, 6420 are made of metal or resin, the processing precision of the attachments 5420, 6420 as panel support members can be increased compared to when the indoor side X2 of the panel G is supported by a wooden panel support member, and deterioration of the attachments 5420, 6420 over time can be reduced. As a result, the panel G is less likely to come loose from the door stiles 54A, 64A. When the attachments 5420, 6420 are made of resin, the side of the door stile covering member 5430, 6430 (described below) facing the attachments 5420, 6420 is less likely to be cooled by cold air from the outdoor side X1 in winter, thereby improving insulation.

[0355] (Door end frame covering material) The door end frame covering material 5430, 6430 is a non-metallic frame covering material that forms the visible surface on the indoor side X2 of the door end frame 54A, 64A, and is arranged to cover the visible surface on the indoor side X2 of the attachment 5420, 6420 over the entire length of the door end frame 54A, 64A in the extension direction. The door end frame covering material 5430, 6430 is a decorative material that improves the design of the sliding window 1A when viewed from the indoor side X2. In order to ensure uniformity in the design of the sliding window 1A, the door end frame covering material 5430, 6430 is made of the same non-metallic material as the upper frame covering material 1300 provided on the above-mentioned upper frames 31A, 41A, 51A, 61A. In this embodiment, the door end frame covering material 5430, 6430 is made of the same wood as the upper frame covering material 1300.

[0356] A handle portion 5431, 6431 that protrudes toward the interior side X2 is integrally formed at the inner peripheral end of the door end frame covering material 5430, 6430. The handle portion 5431, 6431 is formed long along the extension direction of the door end frame covering material 5430, 6430. Figure 52 shows the door end frame covering material 5430 of the door end frame 54A. The door end frame covering material 6430 of the door end frame 64A is arranged symmetrically with the door end frame covering material 5430.

[0357] The door frame covering materials 5430, 6430 are attached to the indoor side X2 surface of the attachment main body 5421, 6421 with multiple double-sided adhesive tapes 5440, 6440 interposed between them and the attachments 5420, 6420, and are attached to the attachments 5420, 6420 by driving screws 5450, 6430 that pass through the attachment main body 5420, 5420 from the outdoor side X1.

[0358] Cutout portions 5432, 5433, 6432, 6433 that are cut out in a stepped manner so as to open toward the outside X1 are formed at the outer peripheral end and inner peripheral end of the door end frame covering materials 5430, 6430 over the entire length in the extension direction of the door end frame covering materials 5430, 6430. The cutout portions 5432, 5433, 6432, 6433 engage with the protruding pieces 5426, 5427, 6426, 6427 on the outer peripheral side and inner peripheral side of the attachments 5420, 6420, respectively, from the inside X2 of the room. At this time, the protruding pieces 5426, 5427, 6426, 6427 are fitted into and accommodated in the cutout portions 5432, 5433, 6432, 6433, and are covered and hidden from the indoor side X2 by the door frame covering materials 5430, 6430. Therefore, the attachments 5420, 6420 are difficult to see from the indoor side X2.

[0359] By placing the door frame covering material 5430, 6430 on the indoor side X2 of the attachment 5420, 6420 via multiple double-sided adhesive tapes 5440, 6440, a gap corresponding to the thickness of the double-sided adhesive tapes 5440, 6440 is formed between the attachment 5420, 6420 and the door frame covering material 5430, 6430. This gap forms a ventilation flow path. As a result, even if condensation or the like occurs on the indoor side X2 surface of the attachment 5420, 6420, the door frame covering material 5430, 6430 can be prevented from coming into contact with the condensation or the like and becoming wet, and ventilation can be promoted to promote drying. The double-sided adhesive tapes 5430, 6430 may be formed in a long length and placed along the entire length of the door end frame 54A in the extension direction, or they may be formed in a short length and placed in pieces at intervals in the extension direction of the door end frame 54A to improve ventilation.

[0360] <Other Embodiments of the Frame> Figures 53 to 57 show modified examples of the frame of a shoji screen. Since the parts with the same reference numerals as those of the frame described above have the same configuration, the explanation of those parts will be omitted below and the explanation above will be used.

[0361] Figure 53 shows the upper frames 310A, 410A, 510A, 610A of the inner shoji screens 3A, 4A and the outer shoji screens 5A, 6A. These upper frames 310A, 410A, 510A, 610A are constructed by attaching a resin frame material 1500 to the indoor side X2 of the upper frame body 1100 in the upper frame 31A, 41A, 51A, 61A shown in Figure 43, instead of the attachment 1200 and the upper frame covering material 1300.

[0362] The resin frame material 1500 is arranged to cover the visible surface of the indoor side X2 of the upper frame body 1100 over its entire length in the extension direction. The resin frame material 1500 is composed of an outdoor side wall portion 1510, an indoor side wall portion 1520, an inner side wall portion 1530, and an outer side wall portion 1540, and has a hollow portion S151 inside the rectangular area surrounded by these. A surface material support portion 1550 having a hollow portion S152 is provided on the inner side of the inner side wall portion 1530. A hollow portion S153 is formed between the outdoor side wall portion 1510 of the resin frame material 1500 and the indoor side wall portion 1120 of the upper frame body 1100.

[0363] The resin frame material 1500 is attached to cover the visible surface of the indoor side X2 of the frame body 1100, similar to the attachment 1200, by means of upper engaging portions 1511 and lower engaging portions 1512, which are respectively arranged at the outer peripheral end and inner peripheral end of the outdoor wall portion 1510. At this time, the projected dimension L12 of the frame 310A, 410A, 510A, 610A is set to be approximately the same as the projected dimension L11 of the frame 31A, 41A, 51A, 61A shown in Figure 43 by appropriately setting the projected dimension of the hollow portions S151, S152.

[0364] Figure 54 shows the bottom frames 320A, 420A, 520A, and 620A of the inner sashes 3A and 4A and the outer sashes 5A and 6A. These bottom frames 320A, 420A, 520A, and 620A are constructed by attaching a resin frame material 2500 to the indoor side X2 of the bottom frame body 2100 in the bottom frames 32A, 42A, 52A, and 62A shown in Figure 45, instead of the attachment 2200 and bottom frame covering material 2300.

[0365] The resin frame material 2500 is arranged to cover the visible surface of the indoor side X2 of the lower frame body 2100 along its entire length in the extension direction. The resin frame material 2500 is composed of an outdoor side wall portion 2510, an indoor side wall portion 2520, an inner side wall portion 2530, and an outer side wall portion 2540, and has a hollow portion S251 inside the rectangular area surrounded by these. A hollow structured surface material support portion 5550 having a hollow portion S252 is provided on the inner side of the inner side wall portion 2530. A hollow portion S253 is formed between the outdoor side wall portion 2510 of the resin frame material 2500 and the indoor side wall portion 2120 of the lower frame body 2100.

[0366] The resin frame material 2500 is attached to cover the visible surface of the indoor side X2 of the lower frame body 2100, similar to the attachment 2200, by means of the upper engaging portion 2511 and the lower engaging portion 2512, which are respectively arranged at the outer peripheral end and inner peripheral end of the outdoor side wall portion 2510. At this time, the projected dimension L22 of the lower frames 320A, 420A, 520A, 620A is set to be approximately the same as the projected dimension L21 of the lower frames 32A, 42A, 52A, 62A shown in Figure 45 by appropriately setting the projected dimension of the hollow portions S251, S252.

[0367] Figure 55 shows a modified version of the inner frame 33A of the inner screen 3A, 4A, a frame 330A. This frame 330A is constructed by attaching a resin frame material 3380 to the frame body 3310 of the inner frame 33A shown in Figure 41, instead of the attachment 3320 and the inner frame covering material 3330.

[0368] The resin frame material 3380 is arranged so as to cover the joint inner frame main body 3310 over the entire length in the extension direction. The resin frame material 3380 is configured to have an indoor side wall portion 3381, an outer peripheral side projection wall portion 3382, and an inner peripheral side projection wall portion 3383. A first partition wall portion 3384 and a second partition wall portion 3385 are formed on the outdoor side X1 of the indoor side wall portion 3381, and are arranged approximately parallel to the indoor side wall portion 3381. As a result, hollow portions S338a and S338b are formed between the indoor side wall portion 3381 and the first partition wall portion 3384, and between the first partition wall portion 3384 and the second partition wall portion 3385, respectively.

[0369] The widths of the indoor side wall portion 3381, the first partition wall portion 3384, and the second partition wall portion 3385 are larger than the width of the indoor side wall portion 3312 of the joint inner frame main body 3310. Therefore, the outer peripheral side projection wall portion 3382 is arranged at a distance on the outer peripheral side from the outer peripheral side wall portion 3313 of the joint inner frame main body 3310, and the inner peripheral side projection wall portion 3383 is arranged at a distance on the inner peripheral side from the second inner peripheral side wall portion 3315 of the joint inner frame main body 3310. The inner peripheral side projection wall portion 3383 has a protrusion 3383a that protrudes toward the second inner peripheral side wall portion 3315 of the joint inner frame main body 3310, and is supported at a distance from the second inner peripheral side wall portion 3315 by the protruding height of the protrusion 3383a.

[0370] A hollow portion S338c is provided at the end of the outer periphery-side projection wall portion 3382 on the exterior side X1, protruding in a rectangular shape toward the outer periphery-side wall portion 3313 of the joint inner frame main body 3310. A hollow portion S338d is provided on the interior side X2 of the hollow portion S338c, spaced from the hollow portion S338c and extending to the position of the partition wall portion 3316 of the joint inner frame main body 3310, protruding in a rectangular shape toward the outer periphery-side wall portion 3313 of the joint inner frame main body 3310. The outer periphery-side projection wall portion 3382 is supported at a distance from the outer periphery-side wall portion 3313 of the joint inner frame main body 3310 by the protruding height of the hollow portions S338c and S338d. Furthermore, the strength of the outer periphery-side projection wall portion 3382 is increased by the hollow portions S338c and S338d. Therefore, the mounting screw 351 of the crescent lock 350 penetrates the outer peripheral wall portion 3382 between the hollow portion S338c and the hollow portion S338d.

[0371] The resin frame material 3380 is attached to the joint inner frame body 3310 in the same manner as the attachment 3320, by a first engagement portion 3382a provided at the end of the outer peripheral projection wall portion 3382 on the outdoor side X1, and a second engagement portion 3383a provided near the end of the inner peripheral projection wall portion 3383 on the outdoor side X1. The end of the inner peripheral projection wall portion 3383 on the outdoor side X1 extends further toward the outdoor side X1 than the second engagement portion 3383a, and forms a surface material support portion 3383b that supports the surface of the surface material G on the indoor side X2.

[0372] The left and right visibility dimension L32 of the joint inner frame 330A, in which the resin frame material 3380 is attached to the joint inner frame body 3310, is set to be approximately the same as the visibility dimension L31 of the joint inner frame 33A shown in Figure 41 by appropriately setting the visibility dimensions of the indoor side wall portion 3381 and the hollow portions S338c, S338d. Furthermore, the visibility dimension L32b of the joint inner frame 330A is set to be approximately the same as the visibility dimension L31b of the joint inner frame 33A shown in Figure 41 by appropriately setting the visibility dimensions of the hollow portions S338a, S338b.

[0373] Figure 56 shows a butt frame 440A of an inner shoji screen 4A. This butt frame 440A is configured by attaching a resin frame material 4400 to the frame covering body 4440 of the frame covering part 4420 in the butt frame 44A shown in Figure 42, instead of the attachment 4450 and the butt frame covering material 4460.

[0374] The resin frame material 4400 is arranged so as to cover the frame covering body 4440 over the entire length in the extension direction. The resin frame material 4400 is configured to have an indoor side wall portion 4401 and an inner peripheral side projection wall portion 4402. A partition wall portion 4403 is formed on the outdoor side X1 of the indoor side wall portion 4401, and is arranged approximately parallel to the indoor side wall portion 4401. This forms a hollow portion S440 between the indoor side wall portion 4401 and the partition wall portion 4403.

[0375] The resin frame material 4400 is attached to the frame covering body 4440 in the same manner as the attachment 4450, by a first engagement portion 4404a provided on the outer peripheral end portion 4404 of the indoor side wall portion 4401 and a second engagement portion 4402a provided near the outdoor side X1 end portion of the inner peripheral side projection wall portion 4402. The outdoor side X1 end portion of the inner peripheral side projection wall portion 4402 extends further toward the outdoor side X1 than the second engagement portion 4402a, and forms a surface material support portion 4402b that supports the indoor side X2 surface of the surface material G.

[0376] The width of the indoor side wall portion 4401 and the partition wall portion 4403 is greater than the width from the indoor side wall portion 4443 of the frame covering portion main body 4440 to the outer peripheral extension portion 4445. Therefore, the inner peripheral side projection wall portion 4402 is positioned away from the inner peripheral side wall portion 4444 of the frame covering portion main body 4440. The inner peripheral side projection wall portion 4402 has a protrusion 4402a that protrudes toward the inner peripheral side wall portion 4444 of the frame covering portion main body 4440, and is supported away from the inner peripheral side wall portion 4444 by the protrusion height of the protrusion 4402a.

[0377] The partition wall portion 4403 has a protrusion 4403a that protrudes toward the indoor side wall portion 4443 of the frame covering portion main body 4440, and a protrusion 4403b that protrudes toward the outer peripheral extension portion 4445 of the frame covering portion main body 4440. As a result, the resin frame material 4400 is supported away from the frame covering portion main body 4440 on the indoor side X2 by the protrusion height of the protrusions 4403a and 4403b.

[0378] The left and right visibility dimension L42a of the butt stile 440A, in which the resin stile material 4400 is attached to the stile covering body 4440, is set to be approximately the same as the visibility dimension L41a of the butt stile 44A shown in Figure 42 by appropriately setting the visibility dimension of the indoor side wall portion 4401 and the protruding height of the protrusion 4402b. Furthermore, the visibility dimension L42b of the inner butt stile 440A is set to be approximately the same as the visibility dimension L41b of the butt stile 44A shown in Figure 42 by appropriately setting the visibility dimension of the hollow portion S440 and the protruding height of the protrusions 4403a, 4403b.

[0379] Figure 57 shows a modified version of the leading edge frame 54A of the outer shoji screen 5A, the leading edge frame 540A. This leading edge frame 540A is constructed by attaching a resin frame material 5460 to the indoor side X2 of the leading edge frame body 5410 in the leading edge frame 5A4 shown in Figure 39, instead of the attachment 5420 and leading edge frame covering material 5430. The leading edge frame of the outer shoji screen 6A is arranged symmetrically with this leading edge frame 540A, so illustration and description are omitted.

[0380] The resin frame member 5460 is positioned so as to cover the visible surface of the indoor side X2 of the door end frame body 5410 along its entire length in the extension direction. The resin frame member 5460 is composed of an outdoor side wall portion 5461, an indoor side wall portion 5462, an inner peripheral side wall portion 5463, an outer peripheral side wall portion 5464, and a partition wall portion 5465. Inside the resin frame member 5460, hollow portions S546a and S546b are formed, partitioned into an outer peripheral side and an inner peripheral side by the partition wall portion 5465. The indoor side wall portion 5462 extends inward beyond the inner peripheral side wall portion 5463 and is provided with a surface material support portion 5466 that supports the indoor side X2 surface of the surface material G. The surface material support portion 5466 has a handle portion 5466a that protrudes toward the indoor side X2.

[0381] The resin frame material 5460 is attached to cover the visible surface on the indoor side X2 of the door end frame body 5410, similar to the attachment 5420, by means of the outer engaging portion 5461a and the inner engaging portion 5461b, which are respectively arranged at the outer end and inner end of the outdoor wall portion 5461. At this time, the projected dimension L52 of the door end frame 540A is set to be approximately the same as the projected dimension L51 of the door end frame 54A shown in Figure 39 by appropriately setting the projected dimensions of the hollow portions S546a and S546b.

[0382] The above-mentioned attachments 3320, 4450, 5420, 6420, 1200, and 2200 can be removably engaged with the respective metal frame bodies 3310, 4410, 5410, 6410, 1100, and 2100, so that the respective frame covering materials 3330, 4460, 5430, 6430, 1300, and 2300 to which the respective attachments 3320, 4450, 5420, 6420, 1200, and 2200 are fixed can be detached from and replaced with the respective frame bodies 3310, 4410, 5410, 6410, 1100, and 2100. Therefore, each frame body 3310, 4410, 5410, 6410, 1100, 2100 can be made common, and the decorative material on the indoor side X2 can be selected from either frame covering materials 3330, 4460, 5430, 6430, 1300, 2300 attached via attachments, or resin frame materials 3380, 4400, 5460, 1500, 2500. Therefore, in the inner shoji screens 3A, 4A and outer shoji screens 5A, 6A, by attaching resin frame materials such as resin frame materials 3380, 4400, 5460, 1500, 2500 to each metal frame body 3310, 4410, 5410, 6410, 1100, 2100 instead of attachments 3320, 4450, 5420, 6420, 1200, 2200 and frame covering materials 3330, 4460, 5430, 6430, 1300, 2300, it is possible to easily remodel the inner shoji screens 3A, 4A and outer shoji screens 5A, 6A into those with resin frame materials 3380, 4400, 5460, 1500, 2500, etc. attached to the indoor side X2 without significantly changing the expected dimensions of each frame. Since the projected dimensions of each of the frames 30A, 40A, 50A, and 60A can be made approximately the same, the frame 2A can be used as is during renovations, etc., and, for example, a shoji screen with a resin frame material can be easily replaced with a shoji screen with a frame covering material made of a different material, such as wood, via an attachment. Because the frame bodies 3310, 4410, 5410, 6410, 1100, and 2100 are common, it is possible to suppress increases in capital investment for product manufacturing and costs due to an increase in the number of parts.

[0383] In the embodiment of the joint inner frame covering material 3330 described above, the indoor-side covering material 3333 covers the indoor-side wall portion 35 of the attachment 3320 and portions of the outer peripheral side wall portion 3322 and the inner peripheral side wall portion 3323, and the outer peripheral side covering material 3331 and the inner peripheral side covering material 3332 cover only the outer peripheral side wall portion 3322 and the inner peripheral side wall portion 3323 of the attachment 3320, but this is not limited to this. The indoor-side covering material 3333 may cover only the indoor-side wall portion 3321 of the attachment 3320, and both or either the outer peripheral side covering material 3331 and the inner peripheral side covering material 3332 may extend to cover a portion of the indoor-side wall portion 3321 of the attachment 3320.

[0384] Similarly, the butt stile covering material 4460 is not limited to a case in which the indoor side covering material 4462 covers the indoor side wall portion 4451 and a part of the inner circumferential side wall portion 4452 of the attachment 4450, and the inner circumferential side covering material 4461 covers only the inner circumferential side wall portion 4452 of the attachment 4450. The indoor side covering material 4462 may cover only the indoor side wall portion 4451 of the attachment 4450, and the inner circumferential side covering material 4461 may extend to cover a part of the indoor side wall portion 4451 of the attachment 4450.

[0385] Furthermore, in the embodiment of the joint inner frame covering material 3330 described above, the opposing surfaces 3333d, 3333f of the indoor-side covering material 3333 are formed to cover the opposing surfaces 3331b, 3332b of the outer-periphery-side covering material 3331 and the inner-periphery-side covering material 3332, but the opposite is also possible. In other words, the opposing surfaces 3331b, 3332b of the outer-periphery-side covering material 3331 and the inner-periphery-side covering material 3332 may be formed to cover the opposing surfaces 3333d, 3333f of the indoor-side covering material 3333. In this case, the indoor-side covering material 3333 is the first covering material, and the outer-periphery-side covering material 3331 and the inner-periphery-side covering material 3332 are the second covering materials. By fixing the outer circumferential covering material 3331 and the inner circumferential covering material 3332 to the attachment 3320 with fasteners such as screws, the indoor covering material 3333 can be fixed to the attachment 3320 without fasteners.

[0386] Similarly, in the butt stile covering material 4460, the opposing surface 4462c of the indoor-side covering material 4462 is formed to cover the opposing surface 4461b of the inner-side covering material 4461, but the reverse is also possible. That is, the opposing surface 4461b of the inner-side covering material 4461 may be formed to cover the opposing surface 4462c of the indoor-side covering material 4462. In this case, the indoor-side covering material 4462 is the first covering material, and the inner-side covering material 4461 is the second covering material. By fixing the inner-side covering material 4461 to the attachment 4450 with fixing devices such as screws, the indoor-side covering material 4462 can be fixed to the attachment 4450 without fixing devices.

[0387] The opposing surfaces 3331b, 3332b, 3333d, 3333f, 4461b, and 4462c formed on the inner stile covering material 3330 and the butt stile covering material 4460 are linearly inclined surfaces. Linearly inclined surfaces are advantageous in that they are easy to process and can easily accommodate processing errors. However, the shape of the opposing surfaces is not limited to linearly inclined surfaces, and any shape may be used as long as one opposing surface can cover the other by sandwiching it between the attachments 3320 and 4450. Therefore, the opposing surfaces may be formed, for example, in a stepped shape that complementarily engages with each other.

[0388] The frame covering material covering one surface of the attachments 3320 and 4450 may be divided into two or more pieces, such as the outer peripheral side wall portion 3331 and the inner peripheral side wall portion 3332 of the joint inner frame covering material 3330, and the inner peripheral side covering material 4461 of the butt frame covering material 4460. In this case, for example, an elastic material having elasticity similar to that of the elastic materials 3340, 3350, and 4470 may be provided on the protruding pieces 3322c and 3323c of the attachment 3320 and the protruding piece 4452c of the attachment 4450.

[0389] The sliding window 1A described above is constructed with four shoji screens—inner shoji screens 3A and 4A and outer shoji screens 5A and 6A—fitted on the inner periphery of the frame 2A. However, a sliding window may also be constructed with only two shoji screens—the inner shoji screen and the outer shoji screen—fitted on the inner periphery of the frame 2A. In this case, the vertical frame through which the outer shoji screen is pulled when closed can have a configuration similar to the vertical frame 23 shown in FIG. 39, and the joint configuration can have a configuration similar to that of FIG. 41. Instead of the vertical frame 24 shown in FIG. 40, one vertical frame of the frame 2A through which the inner shoji screen is pulled when closed can have the vertical frame 24A configuration shown in FIG. 58, for example. In FIG. 58, parts with the same reference numerals as those in FIG. 40 indicate the same components, so the explanation of the configuration shown in FIG. 40 is used for those parts, and only the differences will be explained below.

[0390] In Figure 58, the inner shoji screen 60A, which is pulled to the vertical frame 24A when closed, has the same configuration as the outer shoji screen 6A shown in Figure 40. The inner shoji screen 60A is stored between the room-side upper rail 21b of the upper frame 21 and the room-side lower rail 22b of the lower frame 22. When closed, the inner shoji screen 60A is pulled to a position close to the angle portion 246 relative to the vertical frame 24A, so the vertical frame 24A is not provided with the attachment 245A of the vertical frame 24 and the vertical frame covering material 247 shown in Figure 40. In this case, the engagement protrusion 244A with which the door edge stile 64A of the inner shoji screen 60A engages when closed is positioned closer to the room side X2 than the frame mounting plate portion 242.

[0391] Figures 59 to 64 show another example of an end cap made of a lower anti-vibration part provided at the lower end of the inner frame 33A of the inner shoji screen 3A. The lower anti-vibration part 6100 has substantially the same structure as the lower anti-vibration part 5200 shown in Figures 31 to 33.

[0392] The lower anti-vibration component 6100 has an anti-vibration component main body 6110 , an end plate portion 6120 , an exterior side facing wall portion 6130 , an interior side facing wall portion 6140 , and a lower end sealing wall portion 6150 .

[0393] The anti-vibration component body 6110 has a planar shape corresponding to the planar shape of the hollow portion S33a of the inner stile body 3310 in the inner stile 33A, and is formed as a thin, flat plate with a small thickness in the vertical direction. The anti-vibration component body 6110 is disposed at the lower end of the inner stile 33A by abutting against and covering the inner stile 33A from below, as shown in FIG.

[0394] The anti-vibration component body 6110 has a groove 6111 that opens to the underside 6110a. The groove 6111 is formed in a downward U-shape in cross section, extends left and right of the inner shoji screen 3A along the extension direction of the lower frame 32A, and penetrates the anti-vibration component body 6110 left and right. The groove 6111 engages with the indoor lower rail 22b of the lower frame 22 when the inner shoji screen 3A is installed within the frame body 2A. As shown in Figures 61 and 62, multiple locking plates 6112 protrude upward from the upper surface of the anti-vibration component body 6110. As shown in Figures 59, 60, and 62, drainage holes 6113 are formed on the underside 6110a of the anti-vibration component body 6110 to drain condensation water and the like received in the anti-vibration component body 6110 onto the lower frame 22. A plurality of drainage holes 6113 are provided on the lower surface 6110a, on either side of the groove portion 6111. The drainage holes 6113 are located on the outdoor side X1 of the angle portion 226 of the lower frame 22.

[0395] The end plate portion 6120 has a semicircular upper end and extends upward along the depth direction of the groove portion 6111 from the end of the anti-vibration component body 6110 exposed on the projection surface 33b of the joint inner stile 33A. The groove portion 6111 penetrates the end plate portion 6120 and opens to the projection surface 33b of the joint inner stile 33A. Two openings 6121, 6122 are formed in the end plate portion 6120, aligned vertically. The upper opening 6121 is a hole through which a screw SC21 is inserted to secure the joint inner stile 33A to the lower stile 32A. The screw SC21 is a fastener that secures the vertical and horizontal stiles together. The screw SC21 passes through a screw hole 3310b formed in the lower end of the inner frame body 3310 and is screwed into a tapping hole 2131 formed in the lower frame body 2100 of the lower frame 32A. The lower opening 6122 is a hole through which an adjustment tool is inserted when adjusting the door roller 2170 provided on the lower frame 32A. A blind cap 6120a is attached to each of the two openings 6121, 6122.

[0396] The outdoor sight wall 6130 extends upward from the outdoor X1 end of the anti-vibration component main body 6110. The indoor sight wall 6140 extends upward from the indoor X2 end of the anti-vibration component main body 6110. The indoor sight wall 6140 is exposed at the lower end of the joint inner frame 33A and forms the indoor X2 sight surface of the lower anti-vibration component 6100. The left-right width of the indoor sight wall 6140 corresponds to the left-right width of the joint inner frame main body 3310 of the joint inner frame 33A. The end portion 6110b of the anti-vibration component main body 6110 that is arranged on the vertical frame 23 side, i.e., the end portion 6110b that is arranged on the visible surface 33b side of the joint inner frame 33A, protrudes toward the vertical frame 23 (the left side in Figures 60 and 62) beyond the indoor visible wall portion 6140, as shown in Figures 60 and 62.

[0397] The lower end sealing wall 6150 is rectangular in plan view, protrudes from the upper end of the indoor side sight wall 6140 toward the indoor side X2, and faces downward. The outer shape of the lower end sealing wall 6150 corresponds to the plan view shape of the hollow portion S33b on the indoor side X2 of the inner sill body 3310 of the inner sill 33A. The lower end sealing wall 6150 is formed by an inclined surface that slopes downward from the indoor side X2 toward the outdoor side X1.

[0398] A rising wall portion 6151 rising upward from the lower end sealing wall portion 6150 is formed along the outer periphery of the lower end sealing wall portion 6150. As shown in Figures 61 and 6]2, the outdoor side X1 of the lower end sealing wall portion 6150 does not have a rising wall portion 6151 and is open to the inside of the vibration prevention component main body 6110.

[0399] As shown in FIGS. 60 to 62 , the lower end sealing wall 6150 is formed with component mounting holes 6160 serving as component mounting portions. The component mounting holes 6160 are holes to which functional components, such as the water receiving component 6170 shown in FIG. 59 , can be detachably attached, and penetrate the lower end sealing wall 6150 from top to bottom. In this embodiment, the lower end sealing wall 6150 has two rectangular component mounting holes 6160 arranged side by side in the left-right direction. However, the component mounting holes 6160 do not necessarily have to be arranged side by side in the left-right direction. For example, the component mounting holes 6160 may be arranged side by side in the projection direction or at an angle relative to the projection direction. The number of component mounting holes 6160 is not limited to two; it is sufficient that at least one component mounting hole is provided in the lower end sealing wall 6150. The shape of the component mounting hole 6160 is not limited to rectangular, and may be other shapes, such as a circular hole. Details of the functional components will be described later.

[0400] As shown in Figure 60, the lower anti-vibration component 6100 is attached to the lower end of the joint inner stile 33A by inserting the locking plate 6112 into the inside of the joint inner stile body 3310 from below the joint inner stile 33A. The end plate portion 6120 is accommodated in a U-shaped notch portion 3331i formed in the outer peripheral covering material 3331 on the projection surface 33b of the joint inner stile 33A, and is exposed on the projection surface 33b of the joint inner stile 33A. The lower anti-vibration component 6100 is fixed to the lower stile 32A by a screw SC21 inserted through the opening 6121 of the end plate portion 6120.

[0401] In this embodiment, the lower end extensions 3331j, 3331j of the outer peripheral covering material 3331, which are provided on the visible surface 33b of the joint inner stile 33A and arranged to sandwich the end plate portion 6120, extend to approximately the same position as the lower end of the joint stile main body 3310. The vibration prevention component main body 6110 abuts against the joint inner stile main body 3310 and the lower end surfaces 3331j1, 3331j1 of the lower end extensions 3331j, 3331j, and is arranged to cover the lower end surfaces 3331j1, 3331j1. The indoor side visible wall portion 6140 is arranged flush with the indoor side X2 visible surface 3331j2 of the lower end extension 3331j on the indoor side X2 of the pair of lower end extensions 3331j, 3331j.

[0402] The lower end sealing wall 6150 and the rising wall 6151 fit inside the joint inner stile covering material 3330 of the joint inner stile 33A. The portion of the joint inner stile main body 3310 on the indoor side X2 from the partition wall 3316 is positioned above the lower end surface 3330b of the joint inner stile covering material 3330 by the rising height of the rising wall 6151 from the lower end sealing wall 6150. Therefore, the lower end sealing plate 6150 is positioned flush with the lower end surface 3330b of the joint inner stile covering material 3330 to seal the hollow portion S33b of the joint inner stile main body 3310 and prevent the intrusion of dust and dirt from below. The lower end sealing wall portion 6150 is positioned at a position that protrudes toward the interior side X2 beyond the face material G of the inner shoji screen 3A and the visible surface 32a on the interior side X2 of the lower frame 32A.

[0403] The lower sway prevention component 6100 is attached so that the majority of its components are hidden inside the lower end of the joint inner stile 33A, except for the sway prevention component main body 6110, end plate portion 6120, exterior sight wall portion 6130, interior sight wall portion 6140, and bottom end sealing wall portion 6150, which are exposed on the exterior surface of the joint inner stile 33A. The sway prevention component main body 6110, which covers the hollow portion S33a of the exterior side X1 of the joint inner stile main body 3310, is a thin, flat plate and is positioned flush with the projection surface 33b of the joint inner stile 33A on the outer periphery of the end extension portions 3331j, 3331j. Therefore, the lower sway prevention component 6100 does not protrude toward the vertical frame 23 beyond the projection surface 33b of the joint inner stile 33A.

[0404] The lower end sealing wall 6150 of the lower anti-vibration component 6100 attached to the lower end of the inner stile 33A is positioned inside the inner stile covering material 3330, and therefore catches condensation water, etc., that flows down, for example, in the hollow portion S33b on the indoor side X2 of the inner stile main body 3310, the ventilation flow path Vc1 between the inner stile main body 3310 and the attachment 3320, and the ventilation flow path Vc2 between the attachment 3320 and the inner stile covering material 3330. The condensation water, etc. caught by the lower end sealing wall 6150 flows along the slope of the lower end sealing wall 6150 to the outdoor side X1 and is discharged onto the lower frame 22 through the drainage hole 6113 of the anti-vibration component main body 6110.

[0405] As shown in FIG. 61 , each of the two component mounting holes 6160 in the lower end sealing wall 6150 has an independent vertical wall 6161 that protrudes upward. The vertical wall 6161 is formed in a rectangular cylindrical shape that protrudes upward along the four periphery of the component mounting hole 6160. The vertical wall 6161 may have any other shape, such as a cylindrical shape, as long as it can surround the component mounting hole 6160. This prevents a large amount of condensation water from flowing down the lower end sealing wall 6150 from being discharged through the component mounting hole 6160, thereby preventing the interior of the room from becoming wet due to the condensation water discharged through the component mounting hole 6160. The lower end sealing wall 6150 may have a single vertical wall 6161 that is formed to surround all of the multiple component mounting holes 6160.

[0406] Unlike fixing parts such as screws for attaching end caps, functional parts are parts that are retrofitted using part mounting holes in the end caps as needed to give new functions to the end caps. Functional parts are made of, for example, resin or metal such as aluminum, and are selected appropriately depending on the specific function of the functional part. Specific functional parts include water receiving parts that collect condensation water, gap adjustment parts that reduce the gap between the vertical frame of a shoji screen and the upper or lower frame, as well as security parts such as security sensors that detect external forces applied to the shoji screen and opening detection sensors that detect when the shoji screen is opened.

[0407] 59 and 60 show a water receiving part 6170 as a functional part. The water receiving part 6170 is detachably attached by engaging with two part mounting holes 6160 in the lower end sealing wall part 6150. As shown in FIG. 63 , the water receiving part 6170 has a water receiving part main body 6171, a pair of engagement pieces 6172, and a standing wall part 6173.

[0408] As shown in Figure 64, the water receiving component body 6171 is formed in a flat plate shape large enough to cover the lower end surface of the portion of the joint inner stile 33A that protrudes toward the indoor side X2 beyond the angle portion 226 of the lower frame 22. Specifically, the water receiving component body 6171 is formed so that it can cover the entire lower end surface of the indoor side covering material 3333 of the joint inner stile covering material 3330 in the joint inner stile 33A from the lower end sealing wall portion 6150 when the water receiving component 6170 is attached to the lower end sealing wall portion 6150. The water receiving component body 6171 also covers the lower end surfaces of the opposing portions of the indoor side covering material 3333 and the outer peripheral side covering material 3331 and the opposing portions of the indoor side covering material 3333 and the inner peripheral side covering material 3332.

[0409] The pair of engaging pieces 6172 are each made of a claw piece. The water receiving part 6170 is attached to the underside of the lower end sealing wall part 6150 by inserting and engaging the pair of engaging pieces 6172 into a pair of part mounting holes 6160 of the lower end sealing wall part 6150.

[0410] The standing wall portion 6173 rises upward from the end of the water receiving component body 6171. In this embodiment, the standing wall portion 6173 is formed to rise along the visible surface on the inner periphery of the joint inner frame covering material 3330.

[0411] As shown in Figure 64, when the water receiving part 6170 is attached to the lower end sealing wall 6150 of the lower vibration prevention part 6100, the water receiving part main body 6171 covers from below the portion of the inner stile 33A that protrudes toward the indoor side X2 beyond the lower frame 22. Therefore, even if condensation water or the like flows down inside the inner stile 33A beyond the lower end sealing wall 6150, it can be received by the water receiving part main body 6171. The outdoor side X1 end of the water receiving part main body 6171 is positioned on the angle part 226 of the lower frame 22. Therefore, the received condensation water or the like will not drip down toward the indoor side X2 beyond the angle part 226.

[0412] The standing wall portion 6173 rises along the inner peripheral surface of the joint inner frame covering material 3330. Therefore, when the inner sash 3A is opened to the left in FIG. 64, condensed water on the water receiving part body 6171 can be prevented from being discharged to the inner peripheral side of the joint inner frame 33A. The standing wall portion 6173 may be formed to rise along the left and right projection surfaces and the visible surface of the joint inner frame covering material 3330.

[0413] Furthermore, the water receiving part main body 6171 may be formed to protrude outward from the outer peripheral surface 33b of the inner frame 33A, inward from the inner peripheral surface 33c, and on the indoor side X2 from the indoor side surface 33a so as to be able to receive condensation water and the like that has formed on the surface of the inner frame 33A.

[0414] Figure 65 shows an upper anti-vibration part 6200, which is an upper end cap provided at the upper end of the butt stile 44A of the inner shoji screen 4A. The upper anti-vibration part 6200 is inserted into and attached to the upper end of the joint inner stile 44A. The upper anti-vibration part 6200 has an anti-vibration part main body 6210, an interior facing wall portion 6220, and an upper end sealing wall portion 6230.

[0415] The sway prevention component body 6210 has a planar shape corresponding to the planar shape of the region from the butt stile body 4410 of the butt stile 44A to the outdoor side wall portion 4441 of the stile covering body 4440, and is formed in a block shape to be inserted inside the butt stile 44A. The sway prevention component body 6210 is inserted into the butt stile 44A from above, so that it is positioned at the upper end of the butt stile 44A and covers the upper end surface of the butt stile 44A.

[0416] The anti-vibration component body 6210 has a groove 6211 that opens to the upper surface 6210a. The groove 6211 is U-shaped in cross section, extends left and right of the inner shoji screen 4A along the extension direction of the upper frame 41A, and penetrates left and right through the anti-vibration component body 6210. The groove 6211 engages with the indoor-side upper rail 21b of the upper frame 21 when the inner shoji screen 4A is placed within the frame body 2A.

[0417] The anti-vibration component body 6210 is positioned so as to face the outer periphery of the butt stile 44A. One opening 6212 is formed in the anti-vibration component body 6210. The opening 6212 is a hole through which a screw SC31 is inserted to secure the upper anti-vibration component 6200 to the upper stile 41A. The screw SC31 is a fastener that secures the vertical and horizontal stiles together. The screw SC31 is inserted through the opening 6212 and screwed into a tapping hole 1141 formed in the upper stile body 1100.

[0418] The indoor side sight wall portion 6220 is disposed at the indoor side X2 end of the sway prevention component main body 6210 and faces the indoor side X2. The indoor side sight wall portion 6220 is exposed at the upper end of the butt stile 44A and forms the indoor side X2 sight surface of the upper sway prevention component 6200. The left-right width of the indoor side sight wall portion 6220 corresponds to the left-right width of the stile covering portion 4420 of the butt stile 44A.

[0419] The upper end sealing wall 6230 is made of a rectangular flat plate and protrudes from the lower end of the indoor side visible wall 6220 toward the indoor side X2 and the outer periphery of the butt stile 44A, facing upward. The outer shape of the upper end sealing wall 6230 corresponds to the planar shape of the area of ​​the butt stile 44A closer to the indoor side X2 than the bridge portion 4430. The upper end sealing wall 6230 is provided with a locking plate 6231 that protrudes downward from its underside. A projection wall 6232 that protrudes downward is provided at the outer periphery end of the upper end sealing wall 6230.

[0420] As shown in Figure 65, the upper sway prevention component 6200 is attached to the upper end of the butt stile 44A by inserting it into the inside of the butt stile 44A from above. The sway prevention component main body 6210 is exposed facing the outer periphery of the butt stile 44A. The upper sway prevention component 6200 is fixed to the upper stile 41A by a screw SC31 that passes through an opening 6212 in the sway prevention component main body 6210. The indoor side sight wall portion 6220 is positioned flush with the indoor side X2 sight surface 41a of the upper stile 41A.

[0421] The upper end sealing wall 6230 fits inside the butt stile covering material 4460 of the butt stile 44A. In the butt stile 44A, the portion of the butt stile covering body 4440 on the indoor side X2 is positioned lower than the upper end surface 4460a of the butt stile covering material 4460 by at least the thickness of the upper end sealing wall 6230. Therefore, the upper end sealing plate 6230 is positioned flush with the upper end surface 4460a of the butt stile covering material 4460, sealing the hollow portion S44 of the butt stile covering body 4440 and preventing the intrusion of dust and other particles from above. The upper end sealing wall 6230 is positioned at a position protruding toward the indoor side X2 beyond the face material G of the inner shoji 4A and the visible surface 41a of the indoor side X2 of the upper stile 41A.

[0422] The projection wall portion 6232 provided on the upper end sealing wall portion 6230 is positioned above the outer peripheral end portion 4451a of the attachment 4450 and the elastic member 4446, and forms part of the projection surface 44b of the butt stile 44A.

[0423] 66 to 70 show a lower anti-vibration part 6300, which is a lower end cap provided at the lower end of the butt stile 44A of the inner shoji screen 4A. The lower anti-vibration part 6300 is inserted into and attached to the lower end of the butt stile 44A. The lower anti-vibration part 6300 has a anti-vibration part main body 6310, an interior side visible wall portion 6320, and a lower end sealing wall portion 6330.

[0424] The sway prevention component body 6310, like the sway prevention component body 6210 of the upper sway prevention component 6200, has a planar shape corresponding to the planar shape of the region extending from the butt stile body 4410 in the butt stile 44A to the outdoor-side wall portion 4441 of the stile covering body 4440, and is formed in the shape of a block to be inserted inside the butt stile 44A. The sway prevention component body 6310 is inserted into the butt stile 44A from below, so as to be positioned at the lower end of the butt stile 44A, and covers the lower end surface of the butt stile 44A.

[0425] The anti-vibration component body 6310 has a groove 6311 that opens to the underside 6310a. The groove 6311 is formed in a downward U-shape in cross section, extends left and right of the inner shoji screen 4A along the extension direction of the lower frame 42A, and penetrates left and right through the anti-vibration component body 6310. The groove 6311 engages with the indoor lower rail 21b of the lower frame 22 when the inner shoji screen 4A is placed within the frame body 2A.

[0426] The sway brace component body 6310 is positioned to face the outer periphery of the butt stile 44A. The sway brace component body 6310 has two openings 6312, 6313, one at the top and one at the bottom. The opening 6312 is a hole through which a screw SC32 is inserted to secure the lower stile 6300 to the lower stile 42A. The screw SC32 is a fastener that secures the vertical and horizontal stiles together. The screw SC32 is inserted through the opening 6312 and screwed into a tapping hole 2131 formed in the lower stile body 2100. As shown in Figures 66, 67, and 69, a drainage hole 6314 is formed in the underside 6310a of the sway brace component body 6310. The drainage hole 6314 is positioned on the outdoor side X1 of the angle portion 226 of the lower frame 22, and drains condensation and other water received by the sway brace component body 6310 onto the lower frame 22.

[0427] The indoor side sight wall portion 6320 is disposed at the indoor side X2 end of the vibration prevention component main body 6310 and faces the indoor side X2. The indoor side sight wall portion 6320 is exposed at the lower end of the butt stile 44A and forms the indoor side X2 sight surface of the lower vibration prevention component 6300. The left-right width of the indoor side sight wall portion 6320 corresponds to the left-right width of the stile covering portion 4420 of the butt stile 44A.

[0428] The lower end sealing wall 6330 is a rectangular flat plate that protrudes from the upper end of the indoor-side visible wall 6320 toward the indoor side X2 and the outer periphery of the butt stile 44A, facing downward. The outer shape of the lower end sealing wall 6330 corresponds to the planar shape of the area of ​​the butt stile 44A closer to the indoor side X2 than the bridge portion 4430. The lower end sealing wall 6330 is formed by an inclined surface that slopes downward from the indoor side X2 toward the outdoor side X1. The lower end sealing wall 6330 is provided with a locking plate 6331 that protrudes upward from its upper surface. A projection wall 6332 that protrudes upward is provided at the outer periphery of the lower end sealing wall 6330.

[0429] As shown in Figure 67, the lower anti-vibration component 6300 is attached to the lower end of the butt stile 44A by inserting it into the inside of the butt stile 44A from below. The anti-vibration component main body 6310 is exposed facing the outer periphery of the butt stile 44A. The lower anti-vibration component 6300 is fixed to the lower stile 42A by a screw SC32 that passes through an upper opening 6312 of the anti-vibration component main body 6310. The indoor side sight wall portion 6320 is positioned flush with the indoor side X2 sight surface 42a of the lower stile 42A.

[0430] The lower end sealing wall 6330 fits inside the butt stile covering material 4460 of the butt stile 44A. In the butt stile 44A, the portion of the butt stile covering body 4440 on the indoor side X2 is positioned above the lower end surface 4460b of the butt stile covering material 4460 by at least the thickness of the lower end sealing wall 6330. Therefore, the lower end sealing plate 6330 is positioned approximately flush with the lower end surface 4460b of the butt stile covering material 4460, sealing the hollow portion S44 of the stile covering body 4440 and preventing the intrusion of dust and other particles from below. The lower end sealing wall 6330 is positioned at a position protruding toward the indoor side X2 beyond the face material G of the inner shoji 4A and the visible surface 42a of the indoor side X2 of the lower stile 42A.

[0431] As shown in FIGS. 67 to 69 , the lower end sealing wall portion 6330 is formed with a component mounting hole 6340. The component mounting hole 6340 is a hole that constitutes a component mounting portion to which a functional component, such as the water receiving component 6170 shown in FIG. 69 , can be detachably attached, and penetrates the lower end sealing wall portion 6330 from top to bottom. In this embodiment, two rectangular component mounting holes 6340 are provided side by side in the left-right direction in the lower end sealing wall portion 6330. However, the component mounting holes 6340 do not necessarily have to be provided side by side in the left-right direction. For example, the component mounting holes 6340 may be provided side by side in the projection direction or at an angle relative to the projection direction. The number of component mounting holes 6340 is not limited to two; it is sufficient that at least one component mounting hole is provided in the lower end sealing wall portion 6330. The shape of the component mounting hole 6340 is not limited to rectangular, and other shapes, such as a circular hole, may also be used.

[0432] The lower end sealing wall 6330 of the lower anti-vibration component 6300 attached to the lower end of the butt stile 44A is positioned inside the butt stile covering material 4460, and therefore catches condensation water, etc., that flows down, for example, in the hollow portion S44 of the stile covering body 4440, the ventilation flow path Vc3 between the stile covering body 4440 and the attachment 4450, and the ventilation flow path Vc4 between the attachment 4450 and the butt stile covering material 4460. The condensation water, etc. caught by the lower end sealing wall 6330 flows toward the outside X1 along the slope of the lower end sealing wall 6330 and is drained onto the lower frame 22 through the drainage hole 6314 of the anti-vibration component body 6310.

[0433] As shown in FIG. 68 , each of the two component mounting holes 6340 in the lower end sealing wall 6330 has an independent vertical wall 6341 that protrudes upward. The vertical wall 6341 is formed in a rectangular cylindrical shape that protrudes upward along the four periphery of the component mounting hole 6340. The vertical wall 6341 may have any other shape, such as a cylindrical shape, as long as it can surround the component mounting hole 6340. This prevents a large amount of condensation water from flowing down the lower end sealing wall 6330 from draining through the component mounting hole 6340, thereby preventing the interior of the room from becoming wet due to condensation water drained through the component mounting hole 6340. The lower end sealing wall 6330 may have a single vertical wall 6341 that surrounds all of the multiple component mounting holes 6340.

[0434] As shown in Figures 66 and 67, the lower anti-vibration component 6300 is fitted with a water receiving component 6170, which functions in the same way as the lower anti-vibration component 6100. As shown in Figure 70, when the water receiving component 6170 is attached to the lower end sealing wall 6330 of the lower anti-vibration component 6300, the water receiving component main body 6171 covers from below the portion of the butt stile 44A that protrudes toward the indoor side X2 beyond the lower frame 22. Therefore, even if condensation or the like flows down inside the butt stile 44A beyond the lower end sealing wall 6330, it can be received by the water receiving component main body 6171. The outdoor side X1 end of the water receiving component main body 6171 is positioned on the angle portion 226 of the lower frame 22. Therefore, the received condensation or the like will not drip down toward the indoor side X2 beyond the angle portion 226.

[0435] The upright wall portion 6173 of the water receiving part 6170 may be formed to rise along the left and right projection surfaces and the sight surface of the stile covering material 4460. Furthermore, the water receiving part body 6171 may be formed to project outward from the projection surface 44b on the outer periphery of the stile 44A, inward from the projection surface 44c on the inner periphery, and toward the indoor side X2 from the sight surface 44a on the indoor side X2 so as to be able to receive condensation water and the like that has formed on the surface of the stile 44A.

[0436] 71 shows a gap adjustment part 6180 as a functional part. The gap adjustment part 6180 has a flat gap adjustment part main body 6181, a pair of engagement pieces 6182, and a standing wall part 6183. The gap adjustment part 6180 has a similar configuration to the water receiving part 6170, except that the gap adjustment part main body 6181 is thicker.

[0437] Figure 62 shows the gap adjustment part 6180 attached to the lower anti-vibration part 6300 at the lower end of the butt stile 44A. The gap adjustment part 6180 can reduce the gap g between the lower end of the butt stile 44A and the angle part 226 of the lower frame 2. This prevents cold air from the lower end of the butt stile 44A from flowing into the indoor side X2, improving thermal insulation. The gap adjustment part 6180 can also be attached to the lower anti-vibration part 6100 at the lower end of the inner joint stile 33A.

[0438] The component mounting holes 6160, 6340 of the lower anti-vibration components 6100, 6300 are arranged at fixed positions on the lower end sealing wall portions 6150, 6340. Specifically, as shown in Figure 64, the component mounting hole 6160 of the lower anti-vibration component 6100 is arranged at a distance L1 from the inner peripheral projection surface 33c of the joint inner frame 33A and at a distance L2 from the indoor side X2 facing surface 33a of the joint inner frame 33A. As shown in Figure 70, the component mounting hole 6340 of the lower anti-vibration component 6300 is arranged at a distance L1 from the inner peripheral projection surface 44c of the butt frame 44A and at a distance L2 from the indoor side X2 facing surface 44a of the butt frame 44A. This allows functional parts such as the water receiving part 6170 and the gap adjustment part 6180 to be commonly attached to the lower anti-vibration parts 6100 and 6300, which are located in different positions, and there is no need to prepare dedicated parts for each anti-vibration part (each end cap).

[0439] An upper anti-vibration component similar to the upper anti-vibration component 5100 shown in Figure 27 is provided at the upper end of the inner frame 33A of the inner screen 3A. Furthermore, the upper anti-vibration component 6200 and the lower anti-vibration component 6100, 6300 provided at the lower end of the inner frame 33A of the inner screen 3A and the upper end and lower end of the inner frame 44A of the outer screen 4A, respectively, do not protrude beyond the outer periphery of the inner frame 33A, 44A. In this case, when the inner screen 3A, 4A is opened, the crescent locks 350, 450 (see Figure 37) provided on the inner frame 33A, 44A may collide with the vertical frames 23, 24. Therefore, it is preferable to provide a stopper member on at least one of the upper frame 31A, 41A and the lower frame 32A, 42A of the inner shoji screen 3A, 4A, as shown in Figures 36, 73, and 74. In the inner shoji screen 3A, 4A of this embodiment, stopper members 360, 460 are provided on both the upper frame 31A, 41A and the lower frame 32A, 42A, respectively.

[0440] The stopper members 360, 460 are made of resin blocks. The stopper member 360 of the inner shoji 3A is arranged on the upper frame body 1100 and the lower frame body 2100 of the upper frame 31A and the lower frame 32A of the inner shoji 3A, and is attached close to the upper and lower ends ...

Claims

1. A fixture comprising a shoji screen that holds a surface material inside a frame that is assembled vertically and horizontally, and a frame body that houses the shoji screen on its inner periphery, wherein the frame has a metal exterior frame member, a wooden interior frame member, and an attachment that is positioned between the exterior frame member and the interior frame member and attaches the interior frame member to the exterior frame member.

2. The fixture according to claim 1, wherein the attachment has a covering portion that covers at least a portion of the inner peripheral end face of the indoor frame member.

3. The fitting according to claim 2, wherein the covering portion has an engaging portion that engages with the indoor frame member.

4. A fixture as described in claim 2 or 3, wherein the covering portion covers at least a portion of the inner end surface of the indoor frame member between the outdoor frame member and the indoor frame member at the lower end side of the surface material.

5. A fixture as claimed in any one of claims 2 to 4, wherein the covering portion has an inclined surface that slopes from the inside of the room to the outside of the room toward the outer periphery of the frame.

6. A fitting according to any one of claims 2 to 5, wherein the covering portion has a rib that rises inward at the end facing the interior of the room.

7. The fitting according to any one of claims 2 to 6, wherein the covering portion is formed by a recessed groove.

8. A fixture as claimed in any one of claims 2 to 7, wherein the covering portion covers the entire inner peripheral end face of the indoor frame member.

9. The fixture according to any one of claims 1 to 8, wherein the attachment is made of resin.

10. A fixture as claimed in any one of claims 1 to 9, wherein the vertical and horizontal frames are connected together with fasteners, the frames have end caps made of a different material from the interior side of the frames, and the visible surface of the frames has end extensions extending on both sides of the position of the fasteners.

11. The fixture according to claim 10, wherein the end cap has an opening through which the fastener is inserted, and the end extension is positioned on the outdoor side and indoor side of the opening.

12. The fitting according to claim 10 or 11, wherein the end cap is attached to the end of a vertical stile of the vertical and horizontal stiles.

13. The fixture according to claim 12, wherein the end cap is a vibration-preventing component that prevents the shoji screen from vibrating.

14. The fittings described in claim 13, wherein the shoji screens are outer and inner shoji screens that are each slidably fitted laterally on the inner periphery of the frame to form a sliding window.

15. The fixture according to claim 14, wherein the vertical frame is the inner frame of the inner shoji screen.

16. The fitting described in claim 15, wherein the end cap is attached to the lower end of the joint inner frame, and the visible surface on the interior side of the joint inner frame extends to the same position as the lower end of the end extension portion and protrudes further inside the room than the position of the interior-most end of the lower frame of the frame body.

17. The fixture according to claim 12, wherein the end cap has a protrusion on the outer periphery of the end extension of the vertical stile that protrudes further toward the outer periphery of the vertical stile than the visible surface of the vertical stile.

18. The end cap has a flat end cap body, and the end cap body is arranged to cover the end face of the end extension portion of the joint inner frame, and is arranged on the outer periphery of the end extension portion so as to be approximately flush with the visible surface of the joint inner frame or to be more inward than the visible surface of the joint inner frame.

19. A fixture as described in claim 18, wherein a stopper member is provided on the exterior surface of at least one of the upper and lower frames of the vertical and horizontal frames of the inner screen, which abuts against the mating outer frame of the outer screen when the inner screen moves in the opening direction, thereby determining the limit position of the inner screen in the opening direction.

20. The fitting according to claim 12, wherein the visible surface of the stile is formed of wood and the end cap is a resin member.

21. A fixture as described in any one of claims 10 to 20, wherein the end cap is positioned in a position that is recessed in the frame body in the direction toward the outside of the frame body from the innermost end position of the frame body that is closest to the room in the viewing direction.

22. A fixture as claimed in any one of claims 1 to 21, wherein the frame has a water tray that catches water adhering to the shoji screen, and the water tray is positioned between the outdoor frame member and the indoor frame member and is not exposed to the inside of the room.

23. The water tray has a receiving surface portion that receives water and a rising portion that rises from the periphery of the receiving surface portion, and the receiving surface portion is an inclined surface that slopes downward toward the outside of the room.

24. A fixture as described in claim 22 or 23, wherein the receiving surface portion is positioned on the lower end side of the outdoor frame member and protrudes toward the interior of the room beyond the indoor side surface of the outdoor frame member.

25. A fixture as claimed in any one of claims 22 to 24, wherein an anti-vibration part is attached to the lower end of the vertical stile of the vertically and horizontally assembled stiles, and the water tray is provided on the anti-vibration part.

26. A fixture according to any one of claims 22 to 25, wherein the outdoor frame member is made of metal.

27. A fixture according to any one of claims 22 to 26, wherein the indoor frame member is made of wood.

28. A fixture according to any one of claims 22 to 27, wherein the water tray is made of resin.

29. A fixture as claimed in any one of claims 1 to 28, wherein the indoor frame member has a first covering material and a second covering material, one end of the first covering material and an end of the second covering material are arranged opposite each other, the attachment has an engaging portion that engages with the other end of the first covering material, the first covering material is engaged at the engaging portion via an elastic material, and the second covering material is fixed to the component member.

30. The fixture according to claim 29, wherein the attachment has a protruding piece that abuts against one end of the first covering material.

31. The fitting according to claim 30, wherein the opposing surface of the one end of the first covering material is inserted between the opposing surface of the end of the second covering material and the outer surface of the component.

32. The fitting according to claim 31, wherein the elastic material includes a first elastic material that biases the first covering material in a direction that causes it to abut against the protruding piece.

33. The fitting according to claim 32, wherein the elastic material has a second elastic material that biases the other end of the first covering material in a direction that engages with the engaging portion of the component.

34. A fitting according to any one of claims 31 to 33, wherein the opposing surfaces of the first covering material and the opposing surfaces of the second covering material are each inclined surfaces.

35. The fitting according to claim 34, wherein the second covering material has a notch at the tip of the opposing surface.

36. A fitting according to any one of claims 29 to 35, wherein the attachment has a protrusion that protrudes toward the surface facing at least one of the first covering material or the second covering material.

37. The fitting according to any one of claims 29 to 36, wherein the first covering material and the second covering material are wood.

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