Building materials

Abstract

To provide a fitting capable of preventing a sash from coming off out of a frame body by maintaining engagement of the sash and an upper frame even when the sash moves downward or the position of an upper crosspiece of the sash is lowered.SOLUTION: A fitting includes: a frame body that has un upper frame, a lower frame, and left and right vertical frames and has a groove in the upper frame and lower frame, respectively; a sash that has a plain member inside a housing having an upper crosspiece, a lower crosspiece, and left and right vertical housings, and that is held by the upper frame and lower frame by inserting an upper and a lower end into the grooves; and a retaining member that prevents the sash from coming off of the upper frame. The retaining member includes: an angle member that is attached into the groove of the upper frame and extends from the inside of the groove along at least one side face of the outdoor side and the indoor side of the upper end of the sash; and a fixing screw that fixes the upper end of the sash to the angle member.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Conventionally, there is known a fitting in which the upper and lower parts of a shoji screen are stored and supported in a Kendon style in rail grooves provided in the upper and lower frames, and the shoji screen is not supported by the left and right vertical frames (see, for example, Patent Document 1). In this fitting, a stopper member that protrudes into the rail groove of the lower frame is provided at the fixed part of the handle of the lower rail of the shoji screen to prevent the shoji screen from coming off the lower frame when it is lifted up due to vertical shaking caused by an earthquake. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-184709 Summary of the Invention [Problem to be solved by the invention]

[0004] The inventor further investigated other causes of the shoji screen coming off the frame, other than the case where it comes off the lower frame due to vertical shaking caused by an earthquake. As a result, it was found that if the lower frame is bent due to poor construction of the frame, the shoji screen may move downward, releasing the engagement between the shoji screen and the upper frame, causing the shoji screen to come off the frame.

[0005] Furthermore, because direct sunlight generally shines on fittings from outside the room and penetrates primarily around the lower periphery of the fittings, thermal deformation can occur, causing the lower rail of a shoji screen to shrink in the viewing direction. Furthermore, when the heat of direct sunlight softens the lower rail, the weight of the glass and other surface materials contained within the shoji screen can cause the lower rail to bend, deforming the screen and reducing its vertical dimension. When the vertical dimension of the shoji screen decreases, the position of the upper rail of the shoji screen drops, changing the engagement between the screen and the frame, which can cause the screen to rattle or come off the frame.

[0006] Therefore, the inventor discovered the problem of preventing the shoji from coming off the frame by maintaining the engagement between the upper end of the shoji and the upper frame even if the shoji moves downward or the position of the upper rail of the shoji drops. [Means for solving the problem]

[0007] The building fixture disclosed herein comprises a frame body having an upper frame, a lower frame, and left and right vertical frames, with grooves in each of the upper and lower frames; a shoji screen having a face material on the inside of a frame body having upper slats, lower slats, and left and right vertical frames, and held in the upper and lower frames by having its upper and lower ends inserted into the grooves, respectively; and a stopper member that prevents the shoji screen from coming off the upper frame, wherein the stopper member is attached within the groove of the upper frame and comprises an angle member that extends from within the groove along at least one of the outside and inside sides of the upper end of the shoji screen; and a fixing screw that fixes the upper end of the shoji screen to the angle member. [Brief explanation of the drawings]

[0008] [Figure 1] This is a front view of the building fixture seen from inside the room. [Figure 2] FIG. 2 is a longitudinal cross-sectional view taken along line AA in FIG. [Figure 3] FIG. 2 is a cross-sectional view taken along line BB in FIG. [Figure 4] FIG. 10 is an exploded perspective view showing an angle member attached to the upper frame. [Figure 5] This is a vertical cross-sectional view of the fitting showing how a shoji screen is attached to a frame body. [Figure 6] This is an enlarged vertical cross-sectional view showing how a shoji screen is fixed to an angle member of the upper frame. [Figure 7] FIG. 10 is an enlarged vertical cross-sectional view showing how a shoji screen is fixed to an angle member according to another embodiment. [Figure 8]FIG. 10 is an enlarged vertical cross-sectional view showing how a shoji screen is fixed to an angle member according to yet another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Each embodiment of the fittings of the present disclosure will be described in detail below with reference to the drawings. The fittings in the embodiments are shown as a fixed window 1. The fixed window 1 is a so-called fixed window, and is attached to the inside of a frame 101 provided along the inner periphery of a rectangular opening 100 in the building frame. The fixed window 1 does not open or close the opening 100 except when the shoji screen 3 is removed for cleaning or the like.

[0010] FIG. 1 is a front view of a fixed window 1 as seen from the indoor side. In the following figures, the X1 direction indicates the outdoor side of the fixed window 1, and the X2 direction indicates the indoor side of the fixed window 1. Another window (not shown), such as a fixed window or sliding window, may be attached inside the frame 101 on the outdoor side of the fixed window 1. This creates a double-glazed window inside the frame 101, further improving thermal insulation and soundproofing. The fixed window 1 of this embodiment can be retrofitted to the indoor side of an existing window (not shown).

[0011] The fixed window 1 has a frame 2 provided inside the frame 101, a shoji screen 3 housed inside the frame 2, and a retaining member 4. The frame 2 is formed by framing an upper frame 21, a lower frame 22, and left and right vertical frames 23, 23 in a rectangular shape. The shoji screen 3 is removably fitted inside the frame 2. The retaining member 4 is a member that prevents the upper end of the shoji screen 3 from coming off the upper frame 21.

[0012] The upper frame 21 of the frame body 2 is integrally extruded from a resin material. The upper frame 21 has a first hollow portion 211 with a rectangular cross-section and hollow structure located on the outdoor side, a second hollow portion 212 with a rectangular cross-section and hollow structure located on the indoor side, and a flat base portion 213 that connects the upper ends of the first hollow portion 211 and the second hollow portion 212. The first hollow portion 211, the second hollow portion 212, and the base portion 213 extend over the entire length of the upper frame 21 in the extension direction. The first hollow portion 211 and the second hollow portion 212 protrude downward from the base portion 213 at the same height.

[0013] The first hollow portion 211 and the second hollow portion 212 are arranged parallel to each other and spaced apart in the indoor / outdoor direction. As a result, a groove portion 214 is formed between the first hollow portion 211, the second hollow portion 212 and the base portion 213, spanning the entire length of the upper frame 21 in the extension direction. The groove portion 214 is open downward and accommodates the upper end of the shoji screen 3. The lower surface of the base portion 213 forms the inner bottom surface of the groove portion 214.

[0014] The lower end of the first hollow portion 211 is provided with a sealing portion 215 that protrudes toward the inside of the room and elastically contacts the outside surface of the shoji screen 3. The lower end of the second hollow portion 212 is provided with a fin portion 216 that protrudes toward the outside of the room and elastically contacts the inside surface of the shoji screen 3. The upper frame 21 is fixed to the upper inner surface of the frame 101 with screws SC1 that pass through the base portion 213.

[0015] The lower frame 22 of the frame body 2 is integrally extruded from a resin material. The lower frame 22 has a first hollow portion 221 having a hollow structure with a rectangular cross section and located on the outdoor side, a second hollow portion 222 having a hollow structure with a rectangular cross section and located on the indoor side, and a flat base portion 223 connecting the lower ends of the first hollow portion 221 and the second hollow portion 222. The first hollow portion 221, the second hollow portion 222, and the base portion 223 extend over the entire length of the extension direction of the lower frame 22. In this embodiment, the first hollow portion 221 and the second hollow portion 222 protrude upward from the base portion 223 at the same height, but they do not necessarily have to protrude at the same height.

[0016] The first hollow portion 221 and the second hollow portion 222 are arranged parallel to each other and spaced apart in the indoor / outdoor direction. As a result, a groove portion 224 is formed between the first hollow portion 221, the second hollow portion 222 and the base portion 223, spanning the entire length of the lower frame 22 in the extension direction, similar to the upper frame 21. The groove portion 224 opens upward and accommodates the lower end of the shoji screen 3. The upper surface of the base portion 223 forms the inner bottom surface of the groove portion 224.

[0017] A sealing portion 225 is integrally formed at the upper end of the first hollow portion 221, protruding toward the inside of the room and elastically contacting the outside surface of the shoji screen 3. A fin portion 226 is integrally formed at the upper end of the second hollow portion 222, protruding toward the outside of the room and elastically contacting the inside surface of the shoji screen 3. The lower frame 22 is fixed to the lower inner surface of the frame 101 by screws SC2 that pass through the base portion 223.

[0018] 2, a plurality of resin liners 227 that support the lower end of the shoji screen 3 are provided at predetermined intervals inside the groove 224 of the lower frame 22. The liners 227 are formed in a block shape and have a height slightly lower than the height of the first hollow portion 221 and the second hollow portion 222 of the lower frame 22. Therefore, the lower end surface of the shoji screen 3 that is housed in the groove 224 of the lower frame 22 is positioned slightly lower than the upper end surfaces of the first hollow portion 221 and the second hollow portion 222 of the lower frame 22.

[0019] The vertical frames 23 of the frame body 2 are each integrally extruded from a resin material into a substantially L-shape. The vertical frames 23 extend vertically between the upper frame 21 and the lower frame 22. The vertical frames 23 have base portions 231 extending a predetermined width along the vertical direction of the frame 101, exterior wall portions 232 extending at a substantially right angle from the exterior ends of the base portions 231 toward the inside of the frame 101, and abutment pieces 233 extending at a substantially right angle from the interior ends of the exterior wall portions 232 toward the interior.

[0020] The contact pieces 233, 233 are formed narrower than the base plate parts 231, 241 so as to come into contact with the exterior surface of the shoji screen 3. Sealing parts 234, 234 that elastically come into contact with the exterior surface of the shoji screen 3 are integrally formed at the tips of the contact pieces 233, 233. The vertical frames 23, 23 are fixed to the inner surfaces of the left and right sides of the frame 101 by screws (not shown) that pass through the base plate parts 231, 231, respectively.

[0021] The shoji screen 3 is constructed by fitting a surface material 34 such as glass through a glazing channel 341 inside a rectangular frame body 30 made up of an upper frame 31, a lower frame 32, and left and right vertical frames 33, 33. The surface material may be double-glazed glass made up of two sheets of glass. In the case of double-glazed glass, it is held in place by a retaining member made of soft PVC attached to the frame body.

[0022] As shown in Fig. 2, the upper and lower rails 31, 32 each have a metal core 311, 321, resin cover materials 312, 322 covering the outside and inside surfaces of the core 311, 321, and resin upper and lower cover materials 313, 323 attached to the upper and lower end surfaces of the resin cover materials 312, 322. As shown in Fig. 3, the vertical stiles 33, 33 each have a metal core 331, 331 and resin cover materials 332, 332 covering the outside of the core 311, 321.

[0023] As shown in Figure 1, the shoji screen 3 has a vertically-hinged structure in which an upper sash 31 and a lower sash 32 are arranged between left and right vertical frames 33, 33. More specifically, the left and right vertical frames 33, 33 extend over the entire height of the shoji screen 3. The upper sash 31 and the lower sash 32 are arranged between the left and right vertical frames 33, 33, and connect the upper ends and lower ends of the vertical frames 33, 33, respectively. End cover materials (not shown) are provided on both ends of the vertical frames 33, 33. A roughly U-shaped handle 35 is attached to the center of the interior-facing surface of the lower sash 32.

[0024] The anti-detachment member 4 is disposed on the upper end of the upper frame 21 and the shoji screen 3. As shown in Figs. 1 to 4, the anti-detachment member 4 has an L-shaped angle member 41 formed by bending a strip-shaped metal plate material such as aluminum or steel, and a fixing screw 42 that fixes the shoji screen 3 to the L-shaped angle member 41. At least one anti-detachment member 4 is provided on the upper frame 21. In this embodiment, only one anti-detachment member 4 is disposed in the center of the upper frame 21 in the longitudinal direction, but multiple anti-detachment members 4 may be provided at intervals along the longitudinal direction of the upper frame 21 depending on the size of the fitting 1, etc.

[0025] As shown in Figure 4, the angle member 41 is formed in an L shape by a mounting plate portion 411 attached to the base portion 213 in the groove portion 214 of the upper frame 21, and a shoji fixing plate portion 412 hanging downward from the outside edge of the mounting plate portion 411. The angle member 41 is fixed to the base portion 213 in the groove portion 214 of the upper frame 21 with the shoji fixing plate portion 412 positioned on the outside of the room.

[0026] The mounting plate portion 411 is formed with a through hole 411a through which a screw passes to attach the angle member 41 to the base portion 213 in the groove portion 214 of the upper frame 21. In this embodiment, the screw for attaching the angle member 41 to the base portion 213 is also the screw SC1 that fixes the upper frame 21 to the frame 101, but a screw other than the screw SC1 may also be used. The shoji fixing plate portion 412 is formed with a threaded hole 412a into which the fixing screw 42 screws.

[0027] The length of the shoji fixing plate portion 412 extending downward from the mounting plate portion 411 is longer than the depth of the groove portion 214. When the angle member 41 is attached to the upper frame 21, the shoji fixing plate portion 412 is formed so as to overlap with the exterior side surface 3a of the upper end portion of the shoji 3 attached to the frame body 2, as shown in Figures 2 and 6, and extends downward along the side surface 3a.

[0028] The fixing screw 42 penetrates the shoji 3 from the indoor side toward the outdoor side, and is screwed into a threaded hole 412a formed in the shoji fixing plate part 412 of the angle member 41 on the outdoor side of the shoji 3. The fixing screw 42 in this embodiment is screwed into the threaded hole 412a in the shoji fixing plate part 42 with a tool such as a screwdriver, but the fixing screw 42 may have a knob on the screw head that can be gripped and rotated with fingers without using a tool.

[0029] Next, we will explain how to attach the shoji screen 3 to the frame body 2. As shown in Figure 5, the shoji screen 3 is inserted into the groove 214 of the upper frame 21 and the groove 224 of the lower frame 22 in a Kendon style from the inside of the room. That is, first, the upper end side of the shoji screen 3 is tilted toward the outside of the room and inserted deep into the groove 214 of the upper frame 21. An angle member 41 is attached in advance to the groove 214 of the upper frame 21. The shoji screen fixing plate portion 412 of the angle member 41 extends downward along the first hollow portion 211 on the outside of the upper frame 21 and protrudes downward beyond the first hollow portion 211.

[0030] After inserting the shoji screen 3 deep into the groove 214, the lower end of the shoji screen 3 is moved toward the outside of the room to align the lower end of the shoji screen 3 with the groove 224 of the lower frame 22. Then, the shoji screen 3 is lowered to insert the lower end of the shoji screen 3 into the groove 224 of the lower frame 22. As a result, the shoji screen 3 is held by the upper frame 21 and the lower frame 22. At this time, the upper end of the shoji screen 3 is inserted into the groove 214 of the upper frame 21, as shown in Figure 6. The vertical frames 23, 23 abut the sealing portions 234, 234 against the vertical stiles 33, 33 of the shoji screen 3 from the outside of the room, thereby restricting the position of the shoji screen 3 on the outside. The shoji screen fixing plate portion 412 of the angle member 41 is positioned close to the outside-facing side surface 3a of the upper end of the shoji screen 3.

[0031] Thereafter, a fixing screw 42 is inserted from the inside of the shoji screen 3 into the screw insertion hole 31a that penetrates the upper crosspiece 31 of the shoji screen 3, and is screwed into the threaded hole 412a of the shoji fixing plate portion 412 of the angle member 41 on the outside of the shoji screen 3. This fixes the upper end of the shoji screen 3 to the upper frame 21. Therefore, even if the shoji screen 3 moves downward or the position of the upper crosspiece 31 of the shoji screen 3 drops for some reason, the engagement between the upper end of the shoji screen 3 and the upper frame 21 is maintained, and the shoji screen 3 is prevented from coming off the frame body 2. Because the fixing screw 42 is attached to the shoji fixing plate portion 412 of the angle member 41 from the inside of the shoji screen 3, the work of fixing the shoji screen 3 can be done from the inside of the room, which is easy to do.

[0032] As shown in Figure 7, the shoji fixing plate portion 412 of the L-shaped angle member 41 may be formed to hang down from the indoor-side end of the mounting plate portion 411 to an extent that does not interfere with the operation of inserting the shoji 3 into the groove portion 214 of the upper frame 21 using the Kendon method. The shoji fixing plate portion 412 is arranged along the indoor-side side surface 3b of the upper end of the shoji 3. The fixing screw 42 passes through the threaded hole 412a of the shoji fixing plate portion 412 and is inserted into the screw insertion hole 31a of the shoji 3.

[0033] In addition to the exterior-side shoji fixing plate portion 412, the angle member 41 may also have an interior-side shoji fixing plate portion 413, as shown in FIG. 8, to the extent that it does not interfere with the operation of inserting the shoji 3 into the groove portion 214 of the upper frame 21 using the Kendon method. The shoji fixing plate portion 413 is formed to hang down from the interior-side end of the mounting plate portion 411 and is arranged along the interior-side side surface 3b of the upper end of the shoji 3. This forms the angle member 41 in a U-shape that sandwiches the upper end of the shoji 3 from the interior and exterior directions. The fixing screw 42 passes through the threaded hole 413a of the interior-side shoji fixing plate portion 413 and is inserted into the screw insertion hole 31a of the shoji 3. The fixing screw 42 passes through the upper end of the shoji 3 and is screwed into the threaded hole 412a of the exterior-side shoji fixing plate portion 412.

[0034] 7 and 8, the upper end of the shoji screen 3 can also be fixed to the upper frame 21, achieving the same effect as above. However, in these cases, the shoji screen fixing plate parts 412, 413 are visible from the inside of the room. From the perspective of improving the design of the interior side of the fitting 1, it is preferable that the shoji screen fixing plate part 412 be positioned only on the exterior side of the shoji screen 3.

[0035] The fixing screws 42 may be attached to the shoji fixing plate portions 412, 413 of the angle member 41 from the outside of the shoji 3. When the shoji fixing plate portion 412 is arranged only on the outside of the shoji 3, the fixing screws 42 can be arranged so as not to penetrate the shoji 3, thereby making it possible to make the retaining member 4 completely invisible from the inside of the room.

[0036] In summary, the fitting 1 of this embodiment has the following effects: The fitting 1 has a frame body 2 having an upper frame 21, a lower frame 22, and left and right vertical frames 23, 23, with grooves 214, 224 in the upper frame 21 and the lower frame 22, respectively; a shoji screen 3 having an upper crosspiece 31, a lower crosspiece 32, and left and right vertical frames 33, 33, with a face material 34 on the inside of the frame body 30, and whose upper and lower ends are inserted into the grooves 214, 224, respectively, to be held in the upper frame 21 and the lower frame 22; and a stopper member 4 that prevents the shoji screen 3 from coming off the upper frame 21. The anti-detachment member 4 is attached to the groove 214 of the upper frame 21, and includes an angle member 41 that extends from the groove 214 along at least one of the exterior and interior sides 3a, 3b of the upper end of the shoji screen 3, and a fixing screw 42 that fixes the upper end of the shoji screen 3 to the angle member 41. In this way, the anti-detachment member 4 fixes the upper end of the shoji screen 3 to the upper frame 21. Therefore, even if the shoji screen 3 moves downward or the position of the upper rail 31 of the shoji screen 3 drops for some reason, the engagement between the upper end of the shoji screen 3 and the upper frame 21 is maintained, and the shoji screen 3 is prevented from coming off the frame body 2.

[0037] When fixing the upper end of the shoji screen 3 to the angle member 41 from the inside of the shoji screen 3, the fixing screw 42 can be attached to the angle member 41 from the inside of the shoji screen 3, so that the fixing work of the shoji screen 3 can be performed from the inside of the room, which is easy to work with.

[0038] The anti-detachment member 4 may be provided to fix the upper ends of the vertical frames 33, 33 of the shoji screen 3 to the upper frame 21. [Explanation of symbols]

[0039] REFERENCE SIGNS LIST 1 Door and window fitting, 2 Frame body, 21 Upper frame, 214 Groove portion, 22 Lower frame, 23 Vertical frame, 3 Shoji screen, 30 Frame body, 31 Upper rail, 32 Lower rail, 33 Vertical frame, 34 Surface material, 4 Stopper member, 41 Angle member, 42 Fixing screw

Claims

1. a frame body having an upper frame, a lower frame, and left and right vertical frames, with grooves in the upper frame and the lower frame; A shoji screen has a surface material on the inside of a frame body having an upper crosspiece, a lower crosspiece, and left and right vertical crosspieces, and is held in the upper frame and the lower frame by inserting the upper end and the lower end into the grooves, respectively; and a stopper member that prevents the shoji screen from coming off the upper frame. The anti-detachment member is attached to the groove of the upper frame and includes an angle member extending from the groove along at least one of the exterior and interior sides of the upper end of the shoji screen, and a fixing screw that fixes the upper end of the shoji screen to the angle member.

2. The fixture according to claim 1, wherein the fixing screw fixes the upper end of the shoji screen to the angle member from the inside of the shoji screen.

Images