Fixture

Abstract

To provide a fixture capable of preventing rain water from intruding into a space between a frame body and a sash.SOLUTION: A fixture has a frame body 2, and an inner sash 3 and an outer sash 4 that are supported with the frame body 2. An air tight material 511 is provided on the sill 5 of the frame body 2 or on the indoor side face of a bottom rail 6 of the inner sash 3. An airtight material 623 is provided on the sill 5 or on the outdoor side face of the bottom rail 6 of the inner sash 3. The sill 5 is provided with an ambient air introduction path 8 for introducing the ambient air into a sill-bottom rail space 7 between the sill 5 and the bottom rail 6.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to building materials. [Background technology]

[0002] Conventionally, in fittings installed on the exterior walls of buildings, when the space between the frame and the shoji screen becomes negative pressure, rainwater from outside is drawn in, and this rainwater can seep inside the building. For this reason, fittings are known that introduce outside air into the space between the frame and the shoji screen, equalizing the pressure of this space and the outside air to prevent rainwater from seeping in from outside (see, for example, Patent Document 1). In such fittings, a gap is provided between the frame and the shoji screen to introduce outside air into the space between the frame and the shoji screen. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-51534 Summary of the Invention [Problem to be solved by the invention]

[0004] If there is a gap between the frame and the shoji screen, there is a problem in that rainwater can seep into the space between the frame and the shoji screen due to the potential energy of the falling rainwater and the potential energy of the rainwater that falls and bounces upward.

[0005] The present disclosure aims to provide a fixture that can prevent rainwater from entering the space between the frame and the shoji screen. [Means for solving the problem]

[0006] In order to achieve the above-mentioned objectives, the building fixture of the present disclosure has a frame body and a shoji screen supported by the frame body, and an airtight material is provided on the indoor side of the lower frame of the frame body or the indoor side of the indoor side of the lower stile of the shoji screen, and an airtight material is provided on the indoor side of the lower frame or the outdoor side of the lower stile, and an outside air inlet path is formed in the lower frame to introduce outside air into the lower frame-lower stile space between the lower frame and the lower stile. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a vertical cross-sectional view of the fitting of the first embodiment. [Figure 2] FIG. 2 is a horizontal cross-sectional view of the fitting of the first embodiment. [Figure 3] This is a front view of the inner and outer shoji screens seen from the indoor side. [Figure 4] FIG. 2 is an enlarged view of the lower part of FIG. [Figure 5] FIG. [Figure 6] FIG. 2 is a perspective view of the cover member as seen from above. [Figure 7] FIG. 2 is a perspective view of the cover member as seen from below. [Figure 8] This is an oblique view of the frames of the inner and outer shoji screens from the other side in the left-right direction and from below. [Figure 9] This is an oblique view of the frames of the inner and outer shoji screens, viewed from one side in the left-right direction and from below. [Figure 10] This is a bottom view of the frames of the inner and outer shoji screens. [Figure 11] This is an oblique view of the frames of the inner and outer shoji screens from the other side in the left-right direction and from above. [Figure 12] This is an oblique view of the frames of the inner and outer shoji screens from the other side in the left-right direction and from below. [Figure 13] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Figure 14] This is a side view of the inner and outer shoji screens viewed from one side in the left-right direction. [Figure 15] FIG. 4 is a cross-sectional view taken along line BB in FIG. 3. [Figure 16] FIG. 4 is a cross-sectional view taken along line CC in FIG. [Figure 17] This is a side view of the inner and outer shoji screens viewed from the other side in the left-right direction. [Figure 18] FIG. 4 is a cross-sectional view taken along line DD in FIG. 3. [Figure 19] FIG. 4 is a cross-sectional view taken along the line EE in FIG. [Figure 20] FIG. 10 is a vertical cross-sectional view of the fitting of the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] (First embodiment) As shown in Figures 1 and 2, the door and window 1 is a sliding sash installed in an opening in the exterior wall of a building or other structure. The door and window 1 is a sash made of metal such as aluminum. The door and window 1 has a frame 2, an inner shoji screen 3, and an outer shoji screen 4. The direction connecting the indoors and outdoors is referred to as the indoor-outdoor direction. In the drawings, the indoors is indicated by the reference numeral 12, and the outdoors is indicated by the reference numeral 13. The horizontal direction perpendicular to the indoor-outdoor direction is referred to as the left-right direction. Regarding the left-right direction, the right side when viewing the door and window 1 from the indoor side is sometimes referred to as one side, and the left side is sometimes referred to as the other side. Regarding the left-right direction, the center of the two sides of the left-right direction is sometimes referred to as the inside, and both sides of the center of the left-right direction are sometimes referred to as the outside.

[0009] The frame body 2 has an upper frame 21, a lower frame 5, a first vertical frame 22, and a second vertical frame 23. As shown in Figures 1 to 3, the inner shoji screen 3 has a frame 31 and a glass panel 32. The frame 31 of the inner shoji screen 3 has an upper frame 33, a lower frame 6, a door edge frame 35, and a door joint frame 36. The door edge frame 35 and the door joint frame 36 are vertical frames. The outer shoji screen 4 has a frame 41 and a glass panel 42. The frame 41 of the outer shoji screen 4 has an upper frame 43, a lower frame 44, a door edge frame 45, and a door joint frame 46. The door edge frame 45 and the door joint frame 46 are vertical frames. As shown in Figures 1 and 4, the fitting 1 has an outside air introduction path 8 that introduces outside air into the space 7 between the sill 5 and the bottom frame 6 of the inner shoji screen 3.

[0010] As shown in Figures 4 and 5, the lower frame 5 has an indoor side panel portion 51, an outdoor side panel portion 52, a lower panel portion 53, an inner shoji rail 54, an outer shoji rail 55, an upper panel portion 56, a middle panel portion 57, and an inner shoji rail lower panel portion 58. The indoor side panel portion 51 is provided along the indoor side surface of the lower frame 5. An airtight material 511 is attached to the outdoor side of the upper end of the indoor side panel portion 51. See Figure 4 for the airtight material 511. A groove portion 512 for attaching the airtight material 511 is formed on the outdoor side of the upper end of the indoor side panel portion 51. The outdoor side panel portion 52 is provided along the outdoor side surface of the lower frame 5. A hole portion 521 is formed in the outdoor side panel portion 52, penetrating from indoor to outdoor. See Figure 5 for the hole portion 521. The lower panel portion 53 is provided between the indoor side panel portion 51 and the outdoor side panel portion 52.

[0011] The lower plate 53 has an indoor horizontal portion 531, an inclined portion 532, and an outdoor horizontal portion 533. The indoor horizontal portion 531 extends horizontally from the middle of the indoor side plate 51 in the height direction to the outdoor side. The inclined portion 532 extends from the outdoor end of the indoor horizontal portion 531 in a direction gradually inclining downward toward the outdoor side. The inclined portion 532 has different inclination angles in each portion in the indoor-outdoor direction. The outdoor horizontal portion 533 extends horizontally from the outdoor end of the indoor horizontal portion 531 to the outdoor side and is connected to the middle of the outdoor side plate 52 in the height direction. The inner shoji rail lower plate 58 extends upward from the boundary between the indoor horizontal portion 531 and the inclined portion 532 of the lower plate 53. A hole 581 is formed in the inner shoji rail lower plate 58, penetrating from the indoor to outdoor direction. The inner shoji rail 54 extends upward from the upper end of the inner shoji rail lower plate portion 58. The inner shoji rail 54 is arranged on the outdoor side of the indoor side plate portion 51. The door roller 37 of the inner shoji 3 runs left and right along the upper end of the inner shoji rail 54. See Figure 4 for the door roller 37. The outer shoji rail 55 extends upward from the middle part in the indoor / outdoor direction of the inclined portion 532 of the lower plate portion 53. The outer shoji rail 55 is arranged lower than the inner shoji rail 54. The door roller 47 of the outer shoji 4 runs left and right along the upper end of the outer shoji rail 55. See Figure 4 for the door roller 47. The outer shoji rail 55 has a hole 551 formed therein that penetrates in the indoor / outdoor direction. See Figure 5 for the hole 551.

[0012] The upper plate portion 56 is provided between the indoor side plate portion 51 and the inner shoji rail lower plate portion 58. The indoor side end of the upper plate portion 56 is connected to the middle part in the height direction of the indoor side plate portion 51. The outdoor side end of the upper plate portion 56 is connected to the upper end of the inner shoji rail lower plate portion 58. The upper plate portion 56 is arranged above and overlaps the indoor horizontal portion 531 of the lower plate portion 53 with a gap therebetween. A hole portion 561 is formed in the upper plate portion 56, penetrating it in the vertical direction. See Figure 5 for the hole portion 561.

[0013] The intermediate plate portion 57 protrudes toward the outdoors slightly below the upper end of the inner shoji rail lower plate portion 58. The intermediate plate portion 57 is positioned above and spaced from the indoor-side portions of the inclined portion 532 and the outdoor horizontal portion 533 of the lower plate portion 53. The intermediate plate portion 57 is positioned lower than the upper plate portion 56. The outdoor-side end of the intermediate plate portion 57 is positioned indoors and above the outer shoji rail 55. An airtight material 571 is attached to the outdoor-side end of the intermediate plate portion 57. See Figure 4 for the airtight material 571. A groove 572 for attaching the airtight material 571 is formed at the outdoor-side end of the intermediate plate portion 57. In Figure 5, part of the intermediate plate portion 57 is omitted to show the hole 581 of the inner shoji rail lower plate portion 58.

[0014] The lower frame 5 has a lower frame hollow portion 5a surrounded by the indoor side plate portion 51, the lower plate portion 53, the inner shoji rail lower plate portion 58, and the upper plate portion 56. The lower frame 5 has an upper groove portion 5b surrounded by the outdoor surface of the indoor side plate portion 51, the indoor surface of the outdoor side plate portion 52, and the upper surface of the upper plate portion 56. The upper groove portion 5b is open upward. The lower frame 5 has a rail space portion 5c surrounded by the upper surface of the lower plate portion 53, the outdoor surface of the inner shoji rail lower plate portion 58, the indoor surface of the outer shoji rail 55, and the lower surface of the intermediate plate portion 57. The rail space portion 5c is open upward and to the outdoor side.

[0015] A hole 573 is formed in the intermediate plate 57, penetrating it in the vertical direction. The hole 573 is located near the outdoor end of the intermediate plate 57 in the indoor / outdoor direction, i.e., adjacent to the inner shoji rail 54. The hole 573 is formed on one side of the center of the intermediate plate 57 in the horizontal direction. For example, the hole 573 is formed near one end of the intermediate plate 57 in the horizontal direction. The area near one end of the intermediate plate 57 in the horizontal direction is the lower part of the inner shoji 3 that closes the opening. The hole 573 connects the inter-rail space 5c below the intermediate plate 57 with the space 5d above the intermediate plate 57. The planar shape of the hole 573, as viewed from the vertical direction, is a rectangle extending in the horizontal direction. The portion of the periphery of the hole 573 that corresponds to the long side of the indoor side of the rectangle and that runs along the inner shoji rail 54 is referred to as the indoor edge 573a. Of the peripheral edges of hole 573, the portion that corresponds to the long side of the indoor side of the rectangle and faces indoor edge 573a is referred to as outdoor edge 573b. Of the peripheral edges of hole 573, the portion that corresponds to the short side of the indoor side of the rectangle and connects indoor edge 573a and outdoor edge 573b is referred to as side edge 573c, 573c. Rs are formed at the corners between outdoor edge 573b and side edge 573c, 573c.

[0016] The inner shoji rail 54 has a hole 541 formed therein that penetrates in the indoor-outdoor direction. The hole 541 is formed near the lower end of the inner shoji rail 54. The hole 541 is located above the upper plate 56. The left-right position of the hole 541 is the same as the left-right position of the hole 573 of the intermediate plate 57. In other words, the hole 541 of the inner shoji rail 54 is formed to one side of the left-right center of the inner shoji rail 54. For example, the hole 541 is formed near one end of the inner shoji rail 54 in the left-right direction. The hole 541 connects the space 5d above the intermediate plate 57 with the inside of the upper groove 5b on the indoor side of the inner shoji rail 54. The hole 541 is a long hole that extends in the left-right direction.

[0017] A cover member 59 is attached to the lower frame 5. The cover member 59 is inserted into the hole 573 of the intermediate plate portion 57 and is provided at the corner between the outdoor surface of the inner shoji rail 54 of the lower frame 5 and the upper surface of the intermediate plate portion 57, and is positioned above the hole 573 of the intermediate plate portion 57 and on the outdoor side of the hole 541 of the inner shoji rail 54. The cover member 59 does not cover the hole 573 of the intermediate plate portion 57 or the hole 541 of the inner shoji rail 54. The cover member 59 is made of, for example, resin. The cover member 59 has a fixing portion 591, a cover portion 592, and a connecting rib 593. The fixing portion 591 is inserted into the intermediate plate portion 57 from above. The cover portion 592 is provided at the corner between the outdoor surface of the inner shoji rail 54 of the lower frame 5 and the upper surface of the intermediate plate portion 57.

[0018] As shown in FIGS. 6 and 7, the shape of the fixing portion 591 in a plan view is a C-shape that conforms to the outdoor edge 573b and the outdoor-facing portions of the side edges 573c, 573c of the periphery of the hole 573 of the intermediate plate 57. See FIG. 5 for the periphery of the hole 573 of the intermediate plate 57. The portion of the fixing portion 591 that is disposed along the outdoor edge 573b of the hole 573 is referred to as the outdoor plate 591a, and the portions that are disposed along the side edges 573c, 573c of the hole 573 are referred to as the side portions 591b, 591b. A claw 594a that protrudes toward the outdoors is formed on the lower portion of the outdoor plate 591a. A claw 594b that protrudes outward in the left-right direction is formed on the lower portions of the side portions 591b, 591b. The upper edges of the side portions 591b, 591b are gradually inclined upward from the outdoor side toward the indoor side.

[0019] The cover portion 592 is connected to the upper side of the fixed portion 591. The cover portion 592 has an upper plate portion 592a, an outdoor plate portion 592b, and side plate portions 592c, 592c. The upper plate portion 592a is flat and rectangular. The upper plate portion 592a is arranged with its long sides extending in the left-right direction and tilted so that the indoor side is higher than the outdoor side. The outdoor plate portion 592b extends downward from the outdoor-side edge of the upper plate portion 592a, i.e., from an edge located at a lower position. The side plate portions 592c, 592c extend downward from the left-right edges of the upper plate portion 592a. Both left-right edges of the outdoor plate portion 592b are connected to the rear edges of the side plate portions 592c, 592c. When viewed from the indoor / outdoor direction, the outdoor plate portion 592b has a rectangular shape extending in the left-right direction. The side plate portions 592c, 592c have a trapezoidal shape when viewed from the left-right direction. The upper edges of the side plate portions 592c, 592c extend gradually upward from the outdoor side toward the indoor side. The lower edges of the outdoor plate portion 592b and the side plate portions 592c, 592c are horizontal. The left-right dimension of the cover portion 592 is greater than the left-right dimension of the fixed portion 591. The indoor-outdoor dimension of the cover portion 592 is greater than the indoor-outdoor dimension of the fixed portion 591.

[0020] The upper plate portion 592a of the cover portion 592 is connected to the outdoor plate portion 591a and the upper edges of the side portions 591b, 591b of the fixed portion 591. The outdoor plate portion 592b of the cover portion 592 is arranged on the outdoor side of the outdoor plate portion 591a of the fixed portion 591. The side plate portions 592c, 592c of the cover portion 592 are arranged widthwise outside the side portions 591b, 591b of the cover member 59. The lower edge portion of the cover portion 592 is arranged higher than the lower edge portion of the fixed portion 591. The connecting rib 593 is arranged in the middle portion of the cover portion 592 and the fixed portion 591 in the left-right direction. The connecting rib 593 is flat. The connecting rib 593 is arranged in an orientation such that the plate surface faces left-right. The upper edge portion and the outdoor-side edge portion of the connecting rib 593 are connected to the cover portion 592 and the fixed portion 591.

[0021] The cover member 59 is attached to the lower frame 5 as follows: The fixing portion 591 is inserted from above into the hole 573 of the intermediate plate portion 57. The claw portions 594a and 594b of the fixing portion 591 elastically deform to pass through the hole 573. The claw portions 594 are restored from their elastic deformation and positioned in the intermediate plate portion 57, preventing the fixing portion 591 from being pulled out upward. The outdoor plate portion 592b of the cover member 59 is positioned on the outdoor side of the hole 573. The side plate portions 592c and 592c of the cover member 59 are positioned on both lateral sides of the hole 573. The lower edge portion 592d of the cover portion 592 is in contact with the upper surface of the intermediate plate portion 57. The indoor-side edge portion 592e of the upper plate portion 592a is in contact with the outdoor surface of the inner shoji rail 54 above the hole 541 of the inner shoji rail 54. The indoor edge portions 592f of the side plate portions 592c, 592c of the cover portion 592 come into contact with the outdoor surface of the inner shoji rail 54 on the outside of the hole portion 541 in the left-right direction.

[0022] By passing the air through the hole 573 of the intermediate plate portion 57, the hole 541 of the inner shoji rail 54 and the inside of the cover member 59, the air in the rail-to-rail space 5c of the lower frame 5 can reach the upper groove portion 5b of the lower frame 5.

[0023] As shown in FIG. 4, the lower frame 6 of the inner shoji screen 3 has an indoor side panel 61, an outdoor side panel 62, a middle panel 63, an indoor lower panel 64, and an outdoor lower panel 65. The indoor side panel 61 is provided along the indoor side of the lower frame 6. The outdoor side panel 62 is provided along the outdoor side of the lower frame 6. The middle panel 63 is provided between the indoor side panel 61 and the outdoor side panel 62. The upper end of the indoor side panel 61 and the upper end of the outdoor side panel 62 are located at the same height. The lower end of the indoor side panel 61 and the lower end of the outdoor side panel 62 are located at the same height. The indoor end of the middle panel 63 is connected to the heightwise middle of the indoor side panel 61. The outdoor end of the middle panel 63 is connected to the heightwise middle of the outdoor side panel 62.

[0024] The indoor lower plate portion 64 protrudes outdoors from the middle of the height direction of the indoor side plate portion 61. The outdoor lower plate portion 65 protrudes indoors from the middle of the height direction of the outdoor side plate portion 62. The indoor lower plate portion 64 and the outdoor lower plate portion 65 are arranged at the same height. The indoor lower plate portion 64 and the outdoor lower plate portion 65 are arranged lower than the middle plate portion 63. The indoor lower plate portion 64 and the outdoor lower plate portion 65 are arranged with a gap in the indoor-outdoor direction over the entire left-right direction. The gap between the indoor lower plate portion 64 and the outdoor lower plate portion 65 is referred to as a slit 641. The slit 641 opens in the vertical direction and extends in the horizontal direction.

[0025] A glass groove 6a is formed in the lower frame 6 above the intermediate plate 63, surrounded by the indoor-side plate 61, the outdoor-side plate 62, and the intermediate plate 63. The glass groove 6a is a groove that opens upward. The lower edge of the glass panel 32 is fitted into the glass groove 6a. Glass pressing portions 611, 621 for pressing the glass panel 32 are provided at the upper ends of the indoor-side plate 61 and the outdoor-side plate 62. The glass pressing portion 611 of the indoor-side plate 61 extends from the upper end of the indoor-side plate 61 toward the outdoor side, then bends and extends downward. The glass pressing portion 621 of the outdoor-side plate 62 extends from the upper end of the outdoor-side plate 62 toward the indoor side, then bends and extends downward. The glass pressing portion 611 of the indoor-side plate 61 and the glass pressing portion 621 of the outdoor-side plate 62 are positioned at the same height.

[0026] The lower frame 6 defines a lower hollow portion 6b below the intermediate plate portion 63, surrounded by the indoor side plate portion 61, the outdoor side plate portion 62, and the intermediate plate portion 63. The intermediate plate portion 63 is a partition portion that separates the lower hollow portion 6b from the interior of the glass groove portion 6a. The lower hollow portion 6b is a groove portion that opens downward. The rollers 37 of the inner shoji screen 3 are installed in the lower hollow portion 6b. The rollers 37 pass through a slit 641 between the indoor lower plate portion 64 and the outdoor lower plate portion 65 in the vertical direction. The spaces above and below the indoor lower plate portion 64 and the outdoor lower plate portion 65 in the lower hollow portion 6b are connected via the slit 641 between the indoor lower plate portion 64 and the outdoor lower plate portion 65. Air flows between the spaces above and below the indoor lower plate portion 64 and the outdoor lower plate portion 65 in the lower hollow portion 6b.

[0027] An airtight material 623 is attached to the indoor side of the lower end of the outdoor side plate 62. A groove 624 for attaching the airtight material 623 is formed on the indoor side of the lower end of the outdoor side plate 62. The airtight material 623 protrudes indoors from the outdoor side plate 62 to a position below the door rollers 37. The airtight material 623 is provided only in the length direction of the bottom frame 6, i.e., at both ends in the left-right direction, and is not provided in the middle part in the left-right direction.

[0028] The inner shoji screen 3 is installed on the bottom frame 5 as follows: The door roller 37 is installed on the inner shoji rail 54 of the bottom frame 5. The lower side of the indoor side plate portion 61 of the bottom frame 6 is positioned on the outdoor side of the upper side of the indoor side plate portion 51 of the bottom frame 5. The airtight material 511 attached to the upper end of the indoor side plate portion 51 of the bottom frame 5 is in contact with the lower side of the indoor side plate portion 61 of the bottom frame 6. The lower side of the outdoor side plate portion 62 of the bottom frame 6 is positioned on the outdoor side of the inner shoji rail 54 of the bottom frame 5. The airtight material 623 attached to the lower end of the outdoor side plate portion 62 of the bottom frame 6 is in contact with the lower side. Between the bottom frame 5 and the bottom frame 6, a bottom frame bottom frame space 7 is formed, where the inside of the upper groove portion 5b of the bottom frame 5 and the inside of the lower hollow portion 6b of the bottom frame 6 are combined. As described above, the indoor side panel portion 61 of the sill 6 and the indoor side panel portion 51 of the sill 5, which form the sill space 7, are in contact via an airtight material 511. The outdoor side panel portion 62 of the sill 6 and the inner shoji rail 54 of the sill 5 are in contact via an airtight material 623. The sill 5 and the sill 6 are in contact on the outdoor side via the airtight material 623, and in contact on the indoor side via the airtight material 511.

[0029] The outside air introduction path 8 introduces outside air from the inter-rail space 5c of the lower frame 5 into the lower frame stile space 7. The outside air introduction path 8 is made up of the cover member 59, the hole 573 of the intermediate plate portion 57, and the hole 541 of the inner shoji rail 54. The outside air introduction path 8 is a path that runs from the inter-rail space 5c of the lower frame 5 through the inside of the cover member 59, passes through the hole 573 of the intermediate plate portion 57, passes through the hole 541 of the inner shoji rail 54, and reaches the lower frame stile space 7. The outside air introduction path 8 allows the air in the inter-rail space 5c of the lower frame 5 to reach the lower frame stile space 7.

[0030] As described above, the outdoor side panel 62 of the stile 6 and the inner shoji rail 54 of the stile 5 are in contact with each other via the airtight material 623. The airtight material 623 is provided only at both ends of the stile 6 in the lengthwise direction, i.e., in the left-right direction, and is not provided in the middle part in the left-right direction. Therefore, at both ends of the stile 6 in the left-right direction, the gap between the outdoor side panel 62 of the stile 6 and the inner shoji rail 54 of the stile 5 is blocked by the airtight material 623. At the middle part of the stile 6 in the left-right direction, a gap is formed between the outdoor side panel 62 of the stile 6 and the inner shoji rail 54 of the stile 5. As a result, at both ends of the stile 6 in the left-right direction, rainwater can be prevented from entering the stile space 7 through the gap between the outdoor side panel 62 of the stile 6 and the inner shoji rail 54 of the stile 5. In the middle part of the lower frame 6 in the left-right direction, outside air can be introduced into the lower frame space 7.

[0031] As shown in Figures 4 and 11 to 13, a hole 631 is formed in the intermediate plate portion 63 of the bottom frame 6, penetrating in the vertical direction. Outside air introduced into the bottom frame space 7 is introduced into the glass groove portion 6a of the bottom frame 6 through the hole 631. The glass groove portion 6a of the bottom frame 6 is connected to the glass groove portions 35a, 36a of the end frame 35 and the joint frame 36. The outside air introduced into the glass groove portion 6a of the bottom frame 6 is also introduced into the glass groove portions 35a, 36a of the end frame 35 and the joint frame 36. The glass groove portions 35a, 36a of the end frame 35 and the joint frame 36 are connected to the glass groove portion 33a of the top frame 33. The outside air introduced into the glass grooves 35a, 36a of the door end frame 35 and the door joint frame 36 is introduced into the glass groove 33a of the upper frame 33. As a result, the inside of the glass grooves 6a, 35a, 36a, 33a of the lower frame 6, door end frame 35, door joint frame 36, and upper frame 33, respectively, becomes equal in pressure to the outside air.

[0032] As shown in FIG. 1 , the upper frame 21 has an indoor-side panel portion 211, an outdoor-side panel portion 212, an upper panel portion 213, a first sight panel portion 214, and a second sight panel portion 215. The indoor-side panel portion 211 is provided along the indoor-side side surface of the upper frame 21. An airtight material 216 is attached to the outdoor side of the lower end of the indoor-side panel portion 211. A groove portion 217 for attaching the airtight material 216 is formed on the outdoor side of the lower end of the indoor-side panel portion 211. The upper panel portion 213 is provided between the indoor-side panel portion 211 and the outdoor-side panel portion 212. The first sight panel portion 214 and the second sight panel portion 215 extend downward from a middle portion of the upper panel portion 213 in the indoor / outdoor direction. The first sight panel portion 214 is located closer to the indoor side than the second sight panel portion 215. An airtight material 218 is attached to the lower end of the first sight plate portion 214. A groove portion 219 for attaching the airtight material 218 is formed on the outdoor side of the lower end of the first sight plate portion 214.

[0033] The upper frame 33 of the inner shoji screen 3 is placed in the groove surrounded by the indoor side panel portion 211, the first facing panel portion 214, and the upper panel portion 213. The airtight material 216 attached to the indoor side panel portion 211 contacts the indoor side surface of the facing panel 33. The airtight material 331 attached to the outdoor side surface of the facing panel 33 contacts the indoor side surface of the first facing panel portion 214. The upper frame 43 of the outer shoji screen 4 is placed in the groove surrounded by the first facing panel portion 214, the second facing panel portion 215, and the upper panel portion 213. The airtight material 218 attached to the first facing panel portion 214 contacts the indoor side surface of the facing panel 43. The airtight material 431 attached to the outdoor side surface of the facing panel 43 contacts the indoor side surface of the second facing panel portion 215.

[0034] As shown in FIG. 2, the door frame 35 of the inner shoji screen 3 has a grooved bottom plate portion 351, a grooved inner panel portion 352, a grooved outdoor side panel portion 353, an indoor side panel portion 354, an outdoor side panel portion 355, an outer panel portion 356, an indoor side protruding panel portion 357, and an outdoor side protruding panel portion 358. The grooved bottom plate portion 351 forms the bottom of the glass groove portion 35a of the door frame 35. The grooved inner panel portion 352 forms the indoor side of the glass groove portion 35a. The grooved outdoor side panel portion 353 forms the outdoor side of the glass groove portion 35a. The indoor side panel portion 354 extends from the indoor / outdoor middle of the grooved bottom plate portion 351 to one side in the left-right direction. The outdoor side panel 355 extends to one side in the left-right direction from a position that is closer to the outdoors than the indoor side panel 354, at the indoor / outdoor middle of the groove bottom panel 351. The outer panel 356 is positioned on one side of the indoor side panel 354 and the outdoor side panel 355 in the width direction, with its panel surface facing left-right. The indoor side panel 354 and the outdoor side panel 355 are connected to the indoor / outdoor middle of the outer panel 356. The indoor side protruding panel 357 protrudes to one side in the left-right direction from the indoor side end of the outer panel 356. The outdoor side protruding panel 358 protrudes to one side in the left-right direction from the outdoor side end of the outer panel 356. When the inner shoji 3 closes the opening, the airtight material 221 attached to the first vertical frame 22 comes into contact with the indoor side surface of the indoor side protruding panel 357. When the inner shoji screen 3 closes the opening, the airtight material 358a attached to the outdoor-side protruding plate portion 358 comes into contact with the first vertical frame 22.

[0035] The stile 35 includes a stile hollow portion 35b surrounded by a grooved bottom plate portion 351, an indoor side plate portion 354, an outdoor side plate portion 355, and an outer plate portion 356. The outer plate portion 356 is a partition portion that separates the stile hollow portion 35b from the area outside the stile hollow portion 35b in the left-right direction. As shown in Figures 9, 12, and 14, the outer plate portion 356 has an outer hole portion 356a that penetrates in the left-right direction. The outer hole portion 356a introduces outside air into the stile hollow portion 35b. As shown in Figure 15, the grooved bottom plate portion 351 has a hole portion 351a that penetrates in the left-right direction. The hole portion 351a connects the interior of the stile hollow portion 35b to the interior of the glass groove portion 35a. The door frame 35 can introduce outside air into the glass groove portion 35a through the outer hole portion 356a, the door frame hollow portion 35b, and the hole portion 351a.

[0036] As shown in FIG. 2, the inner sash 36 of the inner sash 3 includes a grooved bottom panel 361, a grooved inner panel 362, an outdoor grooved side panel 363, an indoor side panel 364, an outdoor side panel 365, an outer panel 366, and a smoke deflector 367. The grooved bottom panel 361 forms the bottom of the glass groove 36a of the inner sash 36. The grooved inner panel 362 forms the indoor side of the glass groove 36a. The outdoor side panel 363 forms the outdoor side of the glass groove 36a. The indoor side panel 364 extends from the indoor / outdoor end of the grooved bottom panel 361 to the other left / right side. The outdoor side panel 365 extends from the indoor / outdoor end of the grooved bottom panel 351 to the other left / right side. The outer plate portion 366 is disposed between the indoor side plate portion 364 and the outdoor side plate portion 365. The indoor side end of the outer plate portion 366 is connected to the other left-right end of the indoor side plate portion 364. The other left-right end of the outdoor side plate portion 365 is connected to the outer plate portion 366. The outdoor side end of the outer plate portion 366 protrudes further outdoors than the outer plate portion 366. An airtight material 365a is attached to the outdoor side of the other left-right end of the outdoor side plate portion 365. It is connected to the other left-right end of the outdoor side plate portion 365. The smoke deflector portion 367 is connected to the outdoor side plate portion 365.

[0037] The stile 36 has a stile hollow portion 36b surrounded by a groove bottom plate portion 361, an indoor side plate portion 364, an outdoor side plate portion 365, and an outer plate portion 366. As shown in Figure 16, the stile bottom plate portion 361 of the stile 36 does not have a hole portion connecting the glass groove portion 36a and the stile hollow portion 36b. The stile 36 may have a hole portion for introducing outside air or a hole portion connecting the glass groove portion 36a and the stile hollow portion 36b.

[0038] As shown in FIG. 4 , the lower frame 44 of the outer shoji screen 4 has an indoor side panel portion 441, an outdoor side panel portion 442, an upper intermediate panel portion 443, an indoor lower panel portion 444, an outdoor lower panel portion 445, and a lower intermediate panel portion 446. The indoor side panel portion 441 is provided along the indoor side of the lower frame 44. The outdoor side panel portion 442 is provided along the outdoor side of the lower frame 44. The upper end of the indoor side panel portion 441 and the upper end of the outdoor side panel portion 442 are located at the same height. The lower end of the outdoor side panel portion 442 is located below the lower end of the indoor side panel portion 441. The upper intermediate panel portion 443 and the lower intermediate panel portion 446 are provided between the indoor side panel portion 441 and the outdoor side panel portion 442. The upper intermediate panel portion 443 is located above the lower intermediate panel portion 446. The indoor ends of the upper intermediate plate portion 443 and the lower intermediate plate portion 446 are connected to the middle portion in the height direction of the indoor side plate portion 441. The outdoor ends of the upper intermediate plate portion 443 and the lower intermediate plate portion 446 are connected to the middle portion in the height direction of the outdoor side plate portion 442.

[0039] The indoor lower plate portion 444 has a first plate portion 444a, a second plate portion 444b, and a third plate portion 444c. The first plate portion 444a protrudes outdoors from the lower end of the indoor-side plate portion 441. The second plate portion 444b protrudes downward from the outdoor-side end of the first plate portion 444a. The third plate portion 444c protrudes outdoors from the lower end of the second plate portion 444b. The outdoor lower plate portion 445 protrudes indoors from a middle portion in the height direction of the outdoor-side plate portion 442. The third plate portion 444c of the indoor lower plate portion 444 and the outdoor lower plate portion 445 are disposed at the same height. The indoor lower plate portion 444 and the outdoor lower plate portion 445 are disposed below the lower-side intermediate plate portion 446. As shown in FIGS. 8 to 10 , the indoor lower plate portion 444 and the outdoor lower plate portion 445 are disposed at an interval in the indoor-outdoor direction. The gap between the indoor lower plate portion 444 and the outdoor lower plate portion 445 is referred to as a slit 444d.

[0040] The lower edge of the glass panel 42 is fitted into the glass groove 44a, which is located above the upper intermediate plate 443 and is surrounded by the indoor-side plate 441, the outdoor-side plate 442, and the upper intermediate plate 443. Glass pressing portions 441a, 442a for pressing the glass panel 42 are provided at the upper ends of the indoor-side plate 441 and the outdoor-side plate 442. The glass pressing portion 441a of the indoor-side plate 441 extends from the upper end of the indoor-side plate 441 to the outdoor side and then bends and extends downward. The glass pressing portion 442a of the outdoor-side plate 442 extends from the upper end of the outdoor-side plate 442 to the indoor side and then bends and extends downward. The glass pressing portion 44a1 of the indoor-side plate 441 and the glass pressing portion 442a of the outdoor-side plate 442 are positioned at the same height.

[0041] The rollers 47 of the outer shoji screen 4 are installed in the lower hollow portion 44b, which is below the lower intermediate plate portion 446 and surrounded by the indoor side plate portion 441, the outdoor side plate portion 442, and the upper intermediate plate portion 443. The lower hollow portion 44b is a groove portion that opens downward. The rollers 47 pass through the slit 444d between the indoor lower plate portion 444 and the outdoor lower plate portion 445 in the vertical direction. The rollers 47 are arranged above and below the indoor lower plate portion 444 and the outdoor lower plate portion 445. The lower frame 44 has a lower frame hollow portion 44c, which is surrounded by the indoor side plate portion 441, the outdoor side plate portion 442, the upper intermediate plate portion 443, and the lower intermediate plate portion 446. The lower frame hollow portion 44c is arranged below the glass groove portion 44a via the upper intermediate plate portion 443. 13, a hole 443a is formed in the upper intermediate plate 443, penetrating the upper intermediate plate 443 in the vertical direction. The hole 443a connects the lower frame hollow portion 44c with the interior of the glass groove portion 44a. The lower frame hollow portion 44c is disposed above the lower hollow portion 44b via the lower intermediate plate 446.

[0042] The outer shoji screen 4 is installed on the bottom frame 5 as follows: The door roller 47 is installed on the outer shoji screen rail 55 of the bottom frame 5. The lower side of the indoor side panel portion 441 of the bottom frame 44 is positioned on the outdoor side of the intermediate panel portion 57 of the bottom frame 5. The lower side of the indoor side surface of the indoor side panel portion 441 of the bottom frame 44 is in contact with an airtight material 571 attached to the outdoor end of the intermediate panel portion 57 of the bottom frame 5. The lower side of the outdoor side panel portion 442 of the bottom frame 44 is positioned on the outdoor side of the outer shoji screen rail 55 of the bottom frame 5.

[0043] As shown in FIG. 2, the door frame 45 of the outer shoji screen 4 has a grooved bottom plate portion 451, a grooved interior plate portion 452, a grooved exterior side plate portion 453, an interior side plate portion 454, an exterior side plate portion 455, an exterior plate portion 456, an interior side protruding plate portion 457, and an exterior side protruding plate portion 458. The grooved bottom plate portion 451 forms the bottom of the glass groove portion 45a of the door frame 45. The grooved interior plate portion 452 forms the interior side of the glass groove portion 45a. The grooved exterior side plate portion 453 forms the exterior side of the glass groove portion 45a. The indoor side plate portion 454 extends from the middle of the grooved bottom plate portion 451 in the indoor / outdoor direction to the other side in the left-right direction. The outdoor side panel 455 extends to the other left-right direction from a position that is closer to the outdoor side than the indoor side panel 454, at the indoor / outdoor middle of the groove bottom panel 451. The outer panel 456 is positioned on the other widthwise side of the indoor side panel 454 and the outdoor side panel 455, with its panel surface facing left-right. The indoor side panel 454 and the outdoor side panel 455 are connected to the indoor / outdoor middle of the outer panel 456. The indoor side protruding panel 457 protrudes to the other left-right direction from the indoor side end of the outer panel 456. The outdoor side protruding panel 458 protrudes to the other left-right direction from the outdoor side end of the outer panel 456. When the outer shoji screen 4 closes the opening, the airtight material 231 attached to the second vertical frame 23 comes into contact with the indoor side surface of the indoor side protruding panel 457. When the outer shoji screen 4 closes the opening, the airtight material 458a attached to the outdoor protruding plate portion 458 comes into contact with the second vertical frame 23.

[0044] The door frame 45 includes a door frame hollow portion 45b surrounded by a grooved bottom plate portion 451, an indoor side plate portion 454, an outdoor side plate portion 455, and an outer plate portion 456. The outer plate portion 456 is a partition portion that separates the door frame hollow portion 45b from the area outside the door frame hollow portion 45b in the left-right direction. As shown in Figures 8, 11, and 17, the outer plate portion 456 has an outer hole portion 456a that penetrates in the left-right direction. The outer hole portion 456a introduces outside air into the door frame hollow portion 45b. As shown in Figure 18, the grooved bottom plate portion 451 has a hole portion 451a that penetrates in the left-right direction. The hole portion 451a connects the interior of the door frame hollow portion 45b with the interior of the glass groove portion 45a. The door frame 45 can introduce outside air into the glass groove 45a through the outer hole 456a, the door frame hollow 45b and the hole 451a.

[0045] As shown in Figure 2, the outer door frame 46 of the outer door frame 4 has a groove bottom plate portion 461, a groove inner plate portion 462, an outdoor door frame portion 463, an indoor side plate portion 464, an outdoor side plate portion 465, an outer plate portion 466, and a smoke deflector portion 467. The groove bottom plate portion 461 forms the bottom of the glass groove portion 46a of the outer door frame 46. The groove inner plate portion 462 forms the indoor side of the glass groove portion 46a. When the inner door frame 3 and the outer door frame 4 close the opening and the inner door frame 36 of the inner door frame 3 and the outer door frame 46 of the outer door frame 4 overlap in the indoor / outdoor direction, the airtight material 365a attached to the outdoor side plate portion 365 of the inner door frame 36 of the inner door frame 36 of the inner door frame 36 of the inner door frame 36 comes into contact with the indoor side surface of the groove inner plate portion 462 of the outer door frame 46 of the outer door frame 4. The outdoor groove panel 463 forms the outdoor side of the glass groove 46a. The indoor panel 464 extends from the indoor / outdoor end of the groove bottom panel 461 to one side in the left-right direction. The outdoor panel 465 extends from the indoor / outdoor end of the groove bottom panel 451 to one side in the left-right direction. The outer panel 466 is disposed between the indoor panel 464 and the outdoor panel 465. The indoor end of the outer panel 466 is connected to one side in the left-right direction of the indoor panel 464. The outdoor end of the outer panel 466 is connected to one side in the left-right direction of the outdoor panel 465. The smoke deflector 467 is connected to the outdoor panel 455.

[0046] The stile 46 has a stile hollow portion 46b surrounded by a groove bottom plate portion 461, an indoor side plate portion 464, an outdoor side plate portion 465, and an outer plate portion 466. As shown in FIG. 19, the stile bottom plate portion 461 has a hole portion 461a penetrating in the left-right direction. The hole portion 466a of the outer plate portion 466 introduces outside air into the stile hollow portion 46b. The hole portion 461a of the stile bottom plate portion 461 can introduce air from the stile hollow portion 46b into the glass groove portion 46a.

[0047] The sill 5 is provided with an airtight material 511 on the outdoor surface of the indoor-side panel portion 51, which is located on the indoor side. The airtight material 511 contacts the indoor surface of the indoor-side panel portion 61, which is the indoor side of the bottom frame 6 of the inner shoji screen 3. The bottom frame 6 of the inner shoji screen 3 is provided with an airtight material 623 on the indoor surface of the outdoor-side panel portion 62, which is the outdoor side. The airtight material 623 contacts the outdoor surface of the inner shoji rail 54 of the sill 5. The sill 5 and the bottom frame 6 are in contact via the airtight material 623 on the outdoor side and via the airtight material 511 on the indoor side. This prevents rainwater from entering the sill space 7 through the gap between the sill 5 and the bottom frame 6. The sill 5 is provided with an outside air introduction path 8 that introduces outside air into the sill space 7. Therefore, even if the sill 5 and the sill 6 are in contact via the airtight materials 511, 623, outside air can be introduced into the sill space 7, making the sill space 7 equal in pressure to the outside air. This prevents outdoor rainwater from being drawn into the sill space 7. The building material 1 can prevent rainwater from entering the sill space 7, and therefore can prevent rainwater from entering the room from the sill space 7.

[0048] The outside air introduction path 8 is connected to the lower frame bottom space 7 through a hole 573 in an intermediate plate portion 57 formed in the lower frame 5 and a hole 541 in the inner shoji rail 54. The lower frame 5 has a cover member 59 that is disposed above the hole 573 in the intermediate plate portion 57 and the hole 541 in the inner shoji rail 54 and forms the outside air introduction path 8. This prevents rainwater from entering the room through the hole 573 in the intermediate plate portion 57 or the hole 541 in the inner shoji rail 54.

[0049] When rainwater seeps into the sill space 7, it is more likely to seep into the interior from both ends of the sill space 7 than from the middle part in the left-right direction. In the above embodiment, the airtight material 623 of the sill 6 is provided only at both ends in the longitudinal direction of the sill 6. Therefore, rainwater can be prevented from seeping into the interior without providing airtight material 623 along the entire length of the sill 6. Outside air can be introduced into the sill space 7 from the part between the sill 5 and the sill 6 where no airtight material 623 is provided. Therefore, even if the amount of outside air introduced into the sill space 7 from the outside air introduction path 8 is small, outside air is introduced into the sill space 7, so the equal-pressure structure can be maintained.

[0050] A hole 631 is formed in the intermediate plate 63 of the bottom frame 6, connecting the lower hollow portion 6b with the inside of the glass groove portion 6a. This allows outside air to be introduced into the inside of the glass groove portion 6a, and the inside of the glass groove portion 6a can also be made equal in pressure to the outside air. The glass groove portion 6a of the bottom frame 6 is connected to the glass groove portions 35a, 36a of the door end frame 35 and the door joint frame 36, so outside air can also be introduced into the glass groove portions 35a, 36a of the door end frame 35 and the door joint frame 36. The inside of the glass groove portions 35a, 36a of the door end frame 35 and the door joint frame 36 can also be made equal in pressure to the outside air.

[0051] The groove bottom plate 351 of the door frame 35 of the inner shoji screen 3 is provided with a hole 351a that allows outside air to be introduced into the glass groove 35a. Outside air can also be introduced into the glass groove 35a of the door frame 35. The inside of the glass groove 35a of the door frame 35 can also be made equal in pressure to the outside air.

[0052] (Second embodiment) As shown in FIG. 20, the fitting 1B according to the second embodiment differs from the fitting 1 of the first embodiment in the outside air introduction path 8. The outside air introduction path 8B of the fitting 1B according to the second embodiment is constituted by a hole 581 in the inner shoji rail lower plate portion 58, a hole 561 in the lower frame hollow portion 5a, and an upper plate portion 56. See also FIG. 5 for the hole 581 in the inner shoji rail lower plate portion 58, a hole 561 in the lower frame hollow portion 5a, and an upper plate portion 56. The outside air introduction path 8B is a path that flows from the inter-rail space 5c of the lower frame 5, passes through the hole 581 in the inner shoji rail lower plate portion 58, flows into the lower frame hollow portion 5a, and reaches the lower frame stile space 7 through the hole 561 in the upper plate portion 56. The outside air introduction path 8B allows air in the inter-rail space 5c of the lower frame 5 to reach the lower frame stile space 7. The fitting 1B according to the second embodiment is not provided with the cover member 59 of the fitting 1 of the first embodiment.

[0053] In the fitting 1B according to the second embodiment, as in the first embodiment, the sill 5 and the stile 6 are in contact with each other via airtight materials 511 and 623. This prevents rainwater from entering the stile space 7 through the gap between the sill 5 and the stile 6. The sill 5 has an outside air introduction path 8B that introduces outside air into the stile space 7. This allows outside air to be introduced into the stile space 7 even when the sill 5 and the stile 6 are in contact with each other via the airtight materials 511 and 623, making it possible to equalize the pressure in the stile space 7 with the outside air. This prevents outdoor rainwater from being drawn into the stile space 7. The fitting 1B can prevent rainwater from entering the stile space 7, thereby preventing rainwater from entering the room from the stile space 7.

[0054] In the fitting 1B according to the second embodiment, the intermediate plate portion 57 also protrudes outdoors slightly below the upper end of the inner shoji rail lower plate portion 58. The outdoor end of the intermediate plate portion 57 is positioned indoors and above the outer shoji rail 55. An airtight material 571 is attached to the outdoor end of the intermediate plate portion 57. A groove portion 572 for attaching the airtight material 571 is formed in the outdoor end of the intermediate plate portion 57. The airtight material 571 contacts the indoor surface of the indoor side plate portion 441 of the bottom frame 44 of the outer shoji 4.

[0055] The present disclosure is not limited to the above-described embodiments and can be modified as appropriate. For example, the fittings 1, 1B may be a resin sash or a composite sash made of metal and resin, such as an aluminum-resin composite sash. The glass panels 32, 42 may be single-pane glass or double-glazed glass. The building in which the fittings 1, 1B are installed may be a detached house or the like, in addition to a building.

[0056] The outside air introduction paths 8, 8B are configured to introduce outside air from the rail-to-rail space 5c of the lower frame 5 into the lower frame stile space 7. As long as the configuration introduces outside air from the outside side of the inner shoji rail 54 into the lower frame stile space 7, outside air other than the rail-to-rail space 5c may be introduced.

[0057] The airtight material 623 attached to the outdoor side panel 62 of the stile 6 and in contact with the inner shoji rail 54 of the stile 5 may be provided over the entire length of the stile 6. By doing so, it is possible to prevent rainwater from entering the stile space 7 through the gap between the outdoor side panel 62 of the stile 6 and the inner shoji rail 54 of the stile 5 over the entire length of the stile 6.

[0058] The lower hollow portion 6b provided below the glass groove portion 6a of the lower frame 6 does not have to be open downward except for the portion where the door roller 37 is arranged. The position and shape of the hole for introducing outside air into the glass groove portion provided in the frame may be set as appropriate. The presence or absence of a hole for introducing outside air into the glass groove portion provided in the frame may also be set as appropriate.

[0059] The glass panels 32, 42 may be fixed in the glass grooves by a sealant or may be fixed by glazing channels.

[0060] As described above, the airtight material 511 is provided on the outdoor surface of the indoor side plate portion 51 of the lower frame 5, and is in contact with the indoor surface of the indoor side plate portion 61, which is the indoor side of the bottom frame 6 of the inner shoji screen 3. The airtight material may be provided on the indoor surface of the indoor side plate portion 61, which is the indoor side of the bottom frame 6 of the inner shoji screen 3, and in contact with the outdoor surface of the indoor side plate portion 51 of the lower frame 5. The airtight material 623 is provided on the indoor surface of the outdoor side plate portion 62, which is the outdoor side of the bottom frame 6 of the inner shoji screen 3, and is in contact with the outdoor surface of the inner shoji rail 54 of the lower frame 5. The airtight material may be provided on the outdoor surface of the inner shoji rail 54 of the lower frame 5, and in contact with the indoor surface of the outdoor side plate portion 62, which is the outdoor side of the bottom frame 6 of the inner shoji screen 3. [Explanation of symbols]

[0061] 1, 1B fittings, 2 frame body, 3 inner shoji screen, 4 outer shoji screen, 5 lower frame, 5a lower frame hollow portion, 5b upper groove portion, 5c rail space portion, 6 lower frame, 6a, 33a, 35a, 36a, glass groove portion, 6b lower hollow portion, 7 lower frame lower frame space, 8, 8B outside air introduction path, 31 frame, 32, 42 glass panel, 35 door end frame, 35a, 36a glass groove portion, 36 door joint frame, 59 cover member, 351 groove bottom plate portion, 351a hole portion, 356 outer plate portion, 356a, 456a outer hole portion, 511, 623 airtight material, 521 hole portion, 541 hole portion, 551 hole portion, 561 hole portion, 573 Hole portion, 581 hole portion, 591 fixing portion, 592 cover portion, 593 connecting rib

Claims

1. A frame body, A shoji screen supported by the frame body, An airtight material is provided on the indoor side of the lower frame of the frame body or the lower frame of the shoji screen, An airtight material is provided on the indoor side of the lower frame or the outdoor side of the lower frame, A building fixture in which an outside air intake path is formed in the lower frame to introduce outside air into the lower frame sill space between the lower frame and the lower stile.

2. The outside air introduction path passes through a hole formed in the lower frame and is connected to the lower frame lower stile space, The fixture according to claim 1, wherein a cover member is attached to the lower frame, the cover member being disposed above the hole and forming the outside air introduction path.

3. The lower frame has a lower frame hollow portion disposed below the lower frame lower stile space, The fixture according to claim 1 or 2, wherein the outside air introduction path passes through the hollow portion of the lower frame and connects to the lower frame bottom stile space.

4. The shoji screen has an inner shoji screen and an outer shoji screen, The lower frame includes an inner shoji rail that supports the inner shoji, an outer shoji rail that is provided on the outdoor side of the inner shoji rail and supports the outer shoji; The lower frame space is the space between the lower frame and the lower frame of the inner shoji screen, An airtight material is provided on the indoor side end of the lower frame or on the indoor side of the indoor side of the lower frame of the inner shoji screen, An airtight material is provided on the indoor side of the inner shoji rail or the outdoor side of the lower frame of the inner shoji, The fitting according to claim 1 or 2, wherein the outside air intake path introduces air between the inner shoji rail and the outer shoji rail into the space between the lower frame and the lower sill.

5. The building fixture described in claim 4, wherein the airtight material provided on the indoor side of the outdoor side of the inner shoji rail or the lower frame of the inner shoji is provided only on both end portions in the longitudinal direction of either the lower frame or the lower frame of the inner shoji.

6. The building fixture according to claim 4, wherein the airtight material provided on the indoor side of the inner shoji rail or the outdoor side of the lower frame of the inner shoji is provided over approximately the entire length of either the lower frame or the lower frame of the inner shoji.

7. The lower frame is a glass groove portion into which the glass panel of the shoji screen is fitted; a lower hollow portion disposed below the glass groove portion and opening downward; a partition portion that partitions the glass groove portion and the lower space portion, 3. The fitting according to claim 1, wherein the partition has holes formed therein for allowing air to circulate between the inside of the glass channel and the lower hollow portion.

8. The shoji screen has an inner shoji screen and an outer shoji screen, The door frame of the inner shoji, the door frame of the outer shoji and the door frame are respectively: a glass groove portion into which the glass panel of the shoji screen is fitted; a hollow portion disposed outside the glass groove portion in the left-right direction; a partition portion that partitions the glass groove portion and the hollow portion, The fixture according to claim 1, wherein the partition has holes formed therein for allowing air to circulate between the inside of the glass groove and the hollow portion.

9. The door frame of the inner shoji and the door frame of the outer shoji are, an outer partition that partitions the hollow portion from a hollow portion located outside the hollow portion in the left-right direction; The fixture according to claim 8, wherein the outer partition has an outer hole formed therein for allowing air to circulate between the hollow portion and a hollow portion located outside the hollow portion in the left-right direction.

Images