Building materials

Abstract

To provide a fitting in which the rigidity of a sliding sash can be increased without the need to prepare different sized metal fittings for each sliding sash size and with reduced weight.SOLUTION: A fitting 1 includes: a warp prevention metal fitting 8 placed on an outer circumference side of a stile 31 of a sliding sash 3 to prevent warpage of the sliding sash 3; and a face material retaining metal fitting 37 placed on an inner circumference side of the stile 31 to hold a face material 35 of the sliding sash 3. Each of the warp prevention metal fitting 8 and the face material retaining metal fitting 37 has wrap allowances a1, a2, b1, and b2 where positions of mutual partial parts in a longitudinal direction are overlapped with each other.SELECTED DRAWING: Figure 4

Description

[Technical Field]

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

[0002] Conventionally, fittings have been known that include a frame and a shoji screen placed within the frame. The shoji screen has a stile and a glass panel placed within the stile. The stile is provided with glass retaining metal fittings (face material retaining metal fittings) that hold the glass panel (face material). For such fittings, a fireproof structure for a window has been proposed that includes warp prevention metal fittings that prevent the shoji screen from warping in the event of a fire (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-42799 Summary of the Invention [Problem to be solved by the invention]

[0004] When installing anti-warping hardware and glass-retaining hardware on the frame of a shoji screen, it is desirable to install each of these hardware pieces along the length of the frame in order to further improve the rigidity of the screen. However, this requires preparing anti-warping hardware and glass-retaining hardware of different lengths for each size of shoji screen, which increases manufacturing costs. It also increases the product weight, making it difficult to transport and install the screen, and making it difficult to open and close the screen.

[0005] The present disclosure aims to provide a fitting that eliminates the need to prepare metal fittings of different sizes for each size of shoji screen, and that can improve the rigidity of shoji screens while reducing weight. [Means for solving the problem]

[0006] The present disclosure relates to a fixture having a warp prevention fitting that is placed on the outer periphery of a shoji screen frame and prevents the shoji screen from warping, and a surface material holding fitting that is placed on the inner periphery of the frame and holds the surface material of the shoji screen, wherein the warp prevention fitting and the surface material holding fitting each have an overlapping portion that allows portions of each fitting to overlap in the longitudinal direction. [Brief explanation of the drawings]

[0007] [Figure 1] This is a front view of one embodiment of a horizontal sliding window as seen from the inside of the room. [Figure 2] FIG. 2 is a 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. 2 is a schematic diagram showing a first example of arrangement of anti-warp fittings and glass holding fittings. [Figure 5] FIG. 10 is a schematic diagram showing a second example of arrangement of anti-warp fittings and glass holding fittings. [Figure 6] FIG. 10 is a schematic diagram showing a third example of arrangement of anti-warp fittings and glass holding fittings. [Figure 7] FIG. 10 is a schematic diagram showing a fourth example of arrangement of anti-warp fittings and glass holding fittings. DETAILED DESCRIPTION OF THE INVENTION

[0008] Below, we will explain the horizontal sliding window 1 as a fixture according to an embodiment of the present disclosure. In the following explanation, the projection direction is the direction along the depth of the fixture, with the back side in Figure 1 being referred to as the outside side X1 and the front side being referred to as the inside side X2. The surface along the projection direction may be referred to as the projection surface. The projection direction is the direction along the face direction of the window surface of the horizontal sliding window 1. The surface along the projection direction may be referred to as the projection surface.

[0009] As shown in Figures 1 to 3, a horizontal sliding window 1 has a frame 2 that is attached to an opening in a building frame, a shoji screen 3 that is housed inside the frame 2, a screen door 4, an operator handle 5, and a warp prevention mechanism 6. The frame 2 is formed by framing an upper frame 21, a lower frame 22, and a pair of vertical frames 23, 24 in a rectangular shape.

[0010] As shown in FIGS. 2 and 3, the upper frame 21, the lower frame 22, and the vertical frames 23 and 24 have metal frames 211, 221, 231, and 241, and resin covers 212, 222, 232, and 242, respectively.

[0011] The metal frames 211, 221, 231, and 241 are provided to cover the visible surface of the opening in the building skeleton on the outside side X1. The resin covers 212, 222, 232, and 242 are provided on the inner periphery of the metal frames 211, 221, 231, and 241 on the inside side X2 of the metal frames 211, 221, 231, and 241. The periphery of the screen door 4, which is placed on the inside side X2 of the shoji screen 3, is attached to the inner periphery of the resin covers 212, 222, 232, and 242.

[0012] The shoji screen 3 is arranged so as to be able to open and close on the inner periphery of the frame body 2. The shoji screen 3 is formed by fitting a glass panel 35 (face material) made of one or more glass plates inside a rectangular frame body made of an upper frame 31 (frame), a lower frame 32, and left and right vertical frames 33, 34.

[0013] The upper frame 31 has a glass placement groove 311 (surface material placement groove) that opens downward. A glass holding bracket 37 (surface material holding bracket) is placed inside the glass placement groove 311. The glass holding bracket 37 prevents the glass panel 35 from falling off even if part of the frame material melts in the event of a fire, etc. The glass holding bracket 37 is placed between the glass placement groove 311 and the upper end of the glass panel 35 when the upper end of the glass panel 35 is placed in the glass placement groove 311.

[0014] The glass holding fittings 37 extend in the longitudinal direction of the upper frame 31. Examples of the arrangement of the glass holding fittings 37 in terms of their length, number and attachment positions to the upper frame 31 will be described later.

[0015] The glass holding fitting 37 is formed with an L-shaped cross section. The glass holding fitting 37 has a base portion 371 fixed to the upper frame 31 in the glass arrangement groove 311 with screws 371a, and an outdoor wall portion 372 protruding downward from the end of the base portion 371 on the outdoor side X1. The glass holding fitting 37 holds the glass panel 35 by using the outdoor wall portion 372 to prevent the glass panel 35 from falling toward the outdoor side X1.

[0016] As shown in Figure 2, the operator handle 5 is provided on the lower frame 22 of the frame body 2. The operator handle 5 transmits a rotational force to the shoji screen 3 via an operating arm 51, thereby enabling the shoji screen 3 to be opened or closed.

[0017] 1 and 3, a pair of link mechanisms 36 that support the opening and closing operation of the shoji screen 3 are provided on the left and right sides of the upper end of the shoji screen 3. One link mechanism 36 connects the vertical stile 33 to the vertical frame 23, and the other link mechanism 36 connects the vertical stile 34 to the vertical frame 24.

[0018] As shown in Fig. 3, each of the pair of link mechanisms 36 includes a stay 361 and an arm 362. The stay 361 is attached to mounting portions 231a, 241a extending in the forward direction of the metal frames 231, 241 of the vertical frames 23, 24. One end of the arm 362 is rotatably supported by the stay 361, and the other end is rotatably supported by the vertical frames 33, 34. When the operator handle 5 is used to open or close the shoji screen 3, the link mechanism 36 causes the arm 362 to rotate relative to the vertical frames 23, 24 and the vertical frames 33, 34 in conjunction with the arm 362, thereby allowing the shoji screen 3 to open and close smoothly and reliably.

[0019] The warp prevention mechanism 6 prevents warping of the shoji screen 3 by restricting its movement toward the outside X1 when the shoji screen 3 swells and warps during a fire or other event. As shown in Figure 2, the warp prevention mechanism 6 includes a warp prevention bracket 7 provided on the upper frame 21 and a warp prevention bracket 8 provided on the upper stile 31 of the shoji screen 3.

[0020] The warp prevention receiving bracket 7 is fixed to the inner periphery of the lower plate 211a, which is part of the metal frame 211 of the upper frame 21. The warp prevention receiving bracket 7 has an L-shaped cross section and extends in the longitudinal direction of the upper frame 21. The warp prevention receiving bracket 7 has a base plate 71 fixed to the inner periphery of the lower plate 211a, and a receiving wall portion 72 protruding downward from the end of the base plate 71 on the outdoor side X1.

[0021] The warp prevention metal fittings 8 extend in the longitudinal direction of the upper frame 31. Examples of the arrangement of the warp prevention metal fittings 8 with respect to their length, number and attachment positions to the upper frame 31 will be described later.

[0022] The warp prevention fitting 8 is fixed to the upper frame 31 below the warp prevention receiving fitting 7. As shown in Fig. 2, the warp prevention fitting 8 has a base portion 81 fixed with screws 81a to the upper surface (outer surface) of the upper panel 312, which is part of the upper frame 31 of the shoji screen 3, and an indoor side wall portion 82 standing up from the indoor side X2 end of the base portion 81 towards the upper frame 21.

[0023] The base plate portion 81 is disposed so as to cover the upper surface of the upper panel 312 of the upper frame 31 of the shoji screen 3. That is, the base plate portion 81 is formed in the shape of a long plate extending in the longitudinal direction of the upper frame 31 of the shoji screen 3.

[0024] The indoor wall portion 82 is formed in the shape of a plate having a thickness in the indoor-outdoor direction, and extends in the longitudinal direction of the upper frame 31 of the shoji screen 3. The indoor wall portion 82 has a predetermined height, and its upper end is located above the lower end of the receiving wall portion 72 of the warp prevention receiving bracket 7. When the shoji screen 3 swells and warps in the event of a fire or other such event, causing the shoji screen 3 to deform and move to the outdoor side X1, the indoor wall portion 82 collides with the receiving wall portion 72 of the warp prevention receiving bracket 7. This restricts the shoji screen 3 from moving to the outdoor side X1, and prevents the shoji screen 3 from warping.

[0025] Next, a first and second arrangement example of the glass holding metal fittings 37 and the warp prevention metal fittings 8 arranged on the upper frames 31, 31A will be described with reference to FIGS.

[0026] In the first arrangement example shown in Fig. 4 and the second arrangement example shown in Fig. 5, one warp prevention bracket 8 and two glass holding brackets 37 are arranged on each of the upper frames 31, 31A, which have different longitudinal lengths. The first arrangement example shown in Fig. 4 is an arrangement example where the longitudinal length of the upper frame 31 is length L1, and the second arrangement example shown in Fig. 5 is an arrangement example where the longitudinal length of the upper frame 31A is length L2, which is shorter than length L1.

[0027] The first and second arrangement examples use the same anti-warp fittings 8 and the same glass holding fittings 37. In both arrangement examples, the anti-warp fittings 8 are arranged on the upper side (outer periphery) of the upper frames 31, 31A, and the glass holding fittings 37 are arranged on the lower side (inner periphery) of the upper frames 31, 31A.

[0028] In the first arrangement example, as shown in Figure 4, at least one of the warp prevention fittings 8 and the glass holding fittings 37 is arranged over almost the entire length of the upper frame 31, which has a longitudinal length of L1. In other words, in the first arrangement example, there is no area in the entire length of the upper frame 31 where fittings are not arranged. This reduces manufacturing costs compared to when each fitting is installed throughout, and can increase the rigidity of the shoji screen 3 over almost the entire length of the upper frame 31 while reducing product weight.

[0029] In the first arrangement example, as shown in Fig. 4, the warp prevention fitting 8 is positioned at the center of the upper frame 31 in the longitudinal direction. The two glass holding fittings 37, 37 are positioned at both ends of the upper frame 31 in the longitudinal direction. The warp prevention fitting 8 and the glass holding fitting 37 each have overlapping portions a1, a2 where portions of each fitting overlap in the longitudinal direction of the upper frame 31. The overlapping portions a1, a2 are areas where the ends of the warp prevention fitting 8 and the glass holding fitting 37 overlap each other in the longitudinal direction.

[0030] In contrast, in the second arrangement example, as shown in Figure 5, the warp prevention fitting 8 is positioned at the center of the upper frame 31A in the longitudinal direction, as in the first arrangement example. Also, the two glass holding fittings 37, 37 are positioned at both ends of the upper frame 31A in the longitudinal direction, one on each side, as in the first arrangement example. The warp prevention fitting 8 and the glass holding fitting 37 each have overlapping portions b1, b2 where portions of each fitting overlap with each other in the longitudinal direction of the upper frame 31A, and the overlapping portions b1, b2 in the second arrangement example are larger than the overlapping portions a1, a2 in the first arrangement example.

[0031] Even if the frame dimensions differ in this way, by changing the size of the lap, it is possible to use the same anti-warp fittings 8 and the same glass holding fittings 37. Therefore, there is no need to prepare fittings of different sizes for each frame size, which makes it possible to reduce manufacturing costs.

[0032] Next, a third and fourth arrangement example of the glass holding metal fittings 37 and the warp prevention metal fittings 8A arranged on the upper frames 31 and 31B will be described with reference to FIGS.

[0033] In the third arrangement example shown in Fig. 6 and the fourth arrangement example shown in Fig. 7, one warp prevention bracket 8A and one glass holding bracket 37 are arranged on each of the upper frames 31, 31B, which have different longitudinal lengths. The third arrangement example shown in Fig. 6 is an arrangement example where the longitudinal length of the upper frame 31 is length L1, and the fourth arrangement example shown in Fig. 7 is an arrangement example where the longitudinal length of the upper frame 31B is length L3, which is shorter than length L1.

[0034] The third and fourth arrangement examples use the same warp prevention fittings 8A and the same glass holding fittings 37. In both arrangement examples, the warp prevention fittings 8A are arranged on the upper side (outer periphery) of the upper frames 31, 31B, and the glass holding fittings 37 are arranged on the lower side (inner periphery) of the upper frames 31, 31B.

[0035] In the third arrangement example, as shown in Figure 6, at least one of the warp prevention fittings 8A and the glass holding fittings 37 is arranged over almost the entire longitudinal length of the upper frame 31, which has a longitudinal length of L1. In other words, in the third arrangement example, there is no area in the entire longitudinal length of the upper frame 31 where fittings are not arranged. This reduces manufacturing costs compared to when each fitting is provided throughout, and can increase the rigidity of the shoji screen 3 over almost the entire longitudinal length of the upper frame 31 while reducing product weight.

[0036] 6, in the third arrangement example, the glass holding fittings 37 are positioned closer to one side in the longitudinal direction of the upper frame 31. The warp prevention fittings 8A are positioned closer to the other side in the longitudinal direction of the upper frame 31. The warp prevention fittings 8A and the glass holding fittings 37 each have an overlap area c where portions of each fitting overlap in the longitudinal direction of the upper frame 31. The overlap area c is the area where the end of the warp prevention fitting 8A and the end of the glass holding fitting 37 overlap each other in the longitudinal direction.

[0037] In contrast, in the fourth arrangement example, as shown in Figure 7, the glass holding fittings 37 are positioned closer to one side in the longitudinal direction of the upper frame 31B, as in the third arrangement example. Also, the warp prevention fittings 8A are positioned closer to the other side in the longitudinal direction of the upper frame 31B, as in the third arrangement example. The warp prevention fittings 8A and the glass holding fittings 37 each have an overlap distance d where portions of them overlap in the longitudinal direction of the upper frame 31B, and the overlap distance d in the fourth arrangement example is larger than the overlap distance c in the third arrangement example.

[0038] Even if the frame dimensions differ in this way, by changing the size of the lap, it is possible to use the same warp prevention fittings 8A and the same glass holding fittings 37. Therefore, there is no need to prepare fittings of different sizes for each frame size, which makes it possible to reduce manufacturing costs.

[0039] Although a preferred embodiment of the present disclosure has been described above, the present disclosure is not limited to the above-described embodiment and can be modified as appropriate.

[0040] In the above embodiment, an example in which the fitting is applied to a horizontal sliding window has been described, but the fitting is not limited to this. The fitting is not limited to a horizontal sliding window, but may be a vertical sliding window, and the fitting can be applied to any fitting, such as a sliding door with a shoji screen that can slide horizontally, a hinged door that rotates around a rotation axis to open and close, or a fixed window with a shoji screen fixed to a frame.

[0041] In the above embodiment, the warp prevention fittings 8 and the glass holding fittings 37 (surface material holding fittings) are provided on the upper frame 31 of the shoji screen 3, but this is not limiting. The warp prevention fittings 8 and the glass holding fittings 37 (surface material holding fittings) may also be provided on the lower frame 32 or vertical frames 33, 34 of the shoji screen 3.

[0042] In the first and second arrangement examples of the above embodiment, the warp prevention fitting 8 is arranged at the center of the upper frame 31, 31A in the longitudinal direction, and the two glass holding fittings 37, 37 are arranged at both ends of the upper frame 31, 31A in the longitudinal direction, but this is not limited to this. The glass holding fitting 37 may also be arranged at the center of the upper frame 31, 31A in the longitudinal direction, and the two warp prevention fittings 8, 8 may also be arranged at both ends of the upper frame 31, 31A in the longitudinal direction. [Explanation of symbols]

[0043] 1 Door and window fittings, 3 Shoji screens, 8, 8A Anti-warping hardware, 31, 31A, 31B Upper frame (frame), 35 Glass panel (surface material), 37 Glass retaining hardware (surface material retaining hardware)

Claims

1. A door comprising a frame body attached to an opening and a shoji screen placed on the inner periphery of the frame body, The shoji screen has a frame body whose four sides are framed in a rectangular shape by frames, and a surface material that is placed inside the frame body, The frame has a surface material placement groove that opens toward the inner periphery by a pair of facing surface portions extending in the facing direction and a facing surface portion that is disposed between the pair of facing surface portions and extends in the facing direction, The shoji screen has, on at least one side of the frame, a warp prevention fitting arranged on the outer periphery of the projected surface portion and facing the projected surface portion to prevent the shoji screen from warping, and a surface material holding fitting arranged on the inner periphery of the projected surface portion and facing the projected surface portion to hold the surface material of the shoji screen, The warp prevention fittings and the surface material holding fittings each have an overlapping area where portions of each of the fittings overlap in the longitudinal direction.

2. The warp prevention metal fitting is disposed on the center side of the longitudinal direction of the frame, The fixture according to claim 1, wherein the surface material retaining fittings are arranged on both longitudinal end sides of the frame.

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