JP7756540B2 - Building materials - Google Patents

Description

This disclosure relates to building materials.

Conventionally, fittings have been known that comprise 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 fitted with glass retaining hardware (face material retaining hardware) that holds the glass panel (face material). For such fittings, a fireproof window structure has been proposed that includes anti-warping hardware to prevent the shoji screen from warping in the event of a fire (see, for example, Patent Document 1).

JP 2015-42799 A

When installing anti-warping fittings and glass-retaining fittings on the frame of a shoji screen, it is desirable to install each of these fittings along the length of the frame in order to further improve the rigidity of the screen. However, in this case, it is necessary to prepare anti-warping fittings and glass-retaining fittings 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.

The purpose of this disclosure is to provide fittings that eliminate the need to prepare different sized metal fittings for each shoji screen size, and that can improve the rigidity of shoji screens while reducing weight.

This disclosure relates to a fitting that includes a warp prevention fitting that is placed on the outer periphery of a shoji screen frame to prevent the screen from warping, and a surface material holding fitting that is placed on the inner periphery of the frame to hold the surface material of the shoji screen, and the warp prevention fitting and the surface material holding fitting each have an overlap that allows portions of the fitting to overlap longitudinally.

This is a front view of one embodiment of a horizontal sliding window as seen from the inside of the room. 2 is a cross-sectional view taken along line AA in FIG. 1. FIG. 2 is a cross-sectional view taken along line BB in FIG. 1. FIG. 2 is a schematic diagram showing a first example of arrangement of anti-warp fittings and glass holding fittings. FIG. 10 is a schematic diagram showing a second example of arrangement of anti-warp fittings and glass holding fittings. FIG. 10 is a schematic diagram showing a third example of arrangement of anti-warp fittings and glass holding fittings. FIG. 10 is a schematic diagram showing a fourth example of arrangement of anti-warp fittings and glass holding fittings.

The following describes a horizontal sliding window 1 as a fixture according to an embodiment of the present disclosure. In the following description, the projection direction is the direction along the depth of the fixture, with the back side in Figure 1 being referred to as the exterior side X1 and the front side being referred to as the interior 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 of the window surface of the horizontal sliding window 1. The surface along the projection direction may be referred to as the projection surface.

As shown in Figures 1 to 3, the horizontal sliding window 1 comprises a frame 2 that is attached to an opening in the building frame, a shoji screen 3 that is placed 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.

As shown in Figures 2 and 3, the upper frame 21, lower frame 22, and vertical frames 23 and 24 each have a metal frame 211, 221, 231, and 241, and a resin cover 212, 222, 232, and 242.

Metal frames 211, 221, 231, and 241 are installed to cover the visible surface of the opening in the building frame on the exterior side X1. Resin covers 212, 222, 232, and 242 are installed on the inner periphery of the metal frames 211, 221, 231, and 241 on the interior side X2 of the metal frames 211, 221, 231, and 241. The periphery of the screen door 4, which is placed on the interior side X2 of the shoji screen 3, is attached to the inner periphery of the resin covers 212, 222, 232, and 242.

The shoji screen 3 is positioned on the inner periphery of the frame body 2 so that it can be opened and closed. The shoji screen 3 is constructed by fitting a glass panel 35 (face material) made of one or more glass plates inside a rectangular frame body consisting of an upper frame 31 (frame), a lower frame 32, and left and right vertical frames 33, 34.

The upper frame 31 has a glass placement groove 311 (panel placement groove) that opens downward. A glass holding bracket 37 (panel 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 during 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.

The glass retaining brackets 37 extend in the longitudinal direction of the upper frame 31. Examples of the arrangement of the glass retaining brackets 37 in terms of their length, number, and attachment position to the upper frame 31 will be described later.

The glass holding bracket 37 is formed with an L-shaped cross section. The glass holding bracket 37 has a base portion 371 that is fixed to the upper frame 31 in the glass placement groove 311 with screws 371a, and an exterior wall portion 372 that protrudes downward from the end of the base portion 371 on the exterior side X1. The exterior wall portion 372 of the glass holding bracket 37 prevents the glass panel 35 from falling toward the exterior side X1, thereby holding the glass panel 35.

As shown in Figure 2, the operator handle 5 is attached to the lower frame 22 of the frame body 2. The operator handle 5 transmits rotational force to the shoji screen 3 via the operating arm 51, thereby allowing the shoji screen 3 to be opened or closed.

As shown in Figures 1 and 3, a pair of link mechanisms 36 are provided on the left and right sides of the upper end of the shoji screen 3, respectively, to support the opening and closing movement 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.

As shown in Figure 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 projection 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, respectively, thereby allowing the shoji screen 3 to open and close smoothly and reliably.

The warp prevention mechanism 6 prevents warping of the shoji screen 3 by restricting its movement toward the outside X1 in the event of a fire or other incident. As shown in Figure 2, the warp prevention mechanism 6 includes a warp prevention bracket 7 attached to the upper frame 21 and a warp prevention bracket 8 attached to the upper stile 31 of the shoji screen 3.

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

The anti-warping brackets 8 extend in the longitudinal direction of the upper frame 31. Examples of the arrangement of the anti-warping brackets 8, including their length, number, and attachment position to the upper frame 31, will be described later.

The anti-warping bracket 8 is fixed to the upper frame 31 below the anti-warping support bracket 7. As shown in Figure 2, the anti-warping bracket 8 has a base plate 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 interior wall portion 82 that rises from the interior side X2 end of the base plate 81 toward the upper frame 21.

The base plate 81 is positioned to cover the upper surface of the upper panel 312 of the upper frame 31 of the shoji screen 3. In other words, the base plate 81 is formed as a long plate extending in the longitudinal direction of the upper frame 31 of the shoji screen 3.

The indoor wall portion 82 is formed as a plate with a thickness extending 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 incident, 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, preventing it from warping.

Next, with reference to Figures 4 and 5, we will explain first and second arrangement examples of the glass holding fittings 37 and warp prevention fittings 8 arranged on the upper frames 31 and 31A.

In the first arrangement example shown in Figure 4 and the second arrangement example shown in Figure 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 Figure 4 is an arrangement example where the longitudinal length of the upper frame 31 is length L1, and the second arrangement example shown in Figure 5 is an arrangement example where the longitudinal length of the upper frame 31A is length L2, which is shorter than length L1.

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

In the first arrangement example, as shown in Figure 4, at least one of the anti-warp fittings 8 and the glass-retaining fittings 37 is arranged along 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 along almost 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 reduces product weight while increasing the rigidity of the shoji screen 3 along almost the entire length of the upper frame 31.

In the first arrangement example, as shown in Figure 4, the warp prevention fitting 8 is positioned toward 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 the areas where the ends of the warp prevention fitting 8 and the glass holding fitting 37 overlap each other in the longitudinal direction.

In contrast, in the second arrangement example, as shown in Figure 5, the anti-warp fitting 8 is positioned at the longitudinal center of the upper frame 31A, as in the first arrangement example. Furthermore, the two glass retaining fittings 37, 37 are positioned at both longitudinal ends of the upper frame 31A, as in the first arrangement example. The anti-warp fitting 8 and the glass retaining 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.

Even if the frame dimensions differ, it is possible to use the same anti-warping fittings 8 and the same glass holding fittings 37 by changing the size of the overlap. This means there is no need to prepare different sized fittings for each frame size, which reduces manufacturing costs.

Next, with reference to Figures 6 and 7, we will explain third and fourth arrangement examples of the glass holding fittings 37 and warp prevention fittings 8A arranged on the upper frames 31 and 31B.

In the third arrangement example shown in Figure 6 and the fourth arrangement example shown in Figure 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 Figure 6 is an arrangement example where the longitudinal length of the upper frame 31 is length L1, and the fourth arrangement example shown in Figure 7 is an arrangement example where the longitudinal length of the upper frame 31B is length L3, which is shorter than length L1.

The same anti-warp fittings 8A and glass holding fittings 37 are used in the third and fourth arrangement examples. In both arrangement examples, the anti-warp fittings 8A are positioned on the upper side (outer periphery) of the upper frames 31, 31B, and the glass holding fittings 37 are positioned on the lower side (inner periphery) of the upper frames 31, 31B.

In the third arrangement example, as shown in Figure 6, at least one of the anti-warp fittings 8A and the glass holding fittings 37 is arranged along almost the entire 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 along almost 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 reduces product weight while increasing the rigidity of the shoji screen 3 along almost the entire length of the upper frame 31.

In addition, in the third arrangement example, as shown in Figure 6, the glass holding fitting 37 is positioned toward one longitudinal side of the upper frame 31. The warp prevention fitting 8A is positioned toward the other longitudinal side of the upper frame 31. The warp prevention fitting 8A and the glass holding fitting 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.

In contrast, in the fourth arrangement example, as shown in Figure 7, the glass holding bracket 37 is positioned closer to one side of the upper frame 31B in the longitudinal direction, as in the third arrangement example. Furthermore, the warp prevention bracket 8A is positioned closer to the other side of the upper frame 31B in the longitudinal direction, as in the third arrangement example. The warp prevention bracket 8A and the glass holding bracket 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 greater than the overlap distance c in the third arrangement example.

Even if the frame dimensions differ, it is possible to use the same anti-warping fittings 8A and glass holding fittings 37 by changing the size of the overlap. This means there is no need to prepare different sized fittings for each frame size, reducing manufacturing costs.

The above describes one preferred embodiment of the present disclosure, but the present disclosure is not limited to the above-described embodiment and can be modified as appropriate.

In the above embodiment, an example was described in which the fixture was applied to a horizontal sliding window, but this is not limited to this. The fixture is not limited to a horizontal sliding window, and can be a vertical sliding window, and can be applied to any type of fixture, such as a sliding door with a shoji screen that can slide horizontally, a hinged door that opens and closes by rotating around a pivot, or a fixed window with a shoji screen fixed to a frame.

In the above embodiment, the warp prevention fittings 8 and glass holding fittings 37 (surface material holding fittings) are provided on the upper frame 31 of the shoji screen 3, but this is not limited to this. The warp prevention fittings 8 and 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.

In the first and second arrangement examples of the above embodiment, the anti-warping bracket 8 is positioned at the longitudinal center of the upper frame 31, 31A, and the two glass holding brackets 37, 37 are positioned at both longitudinal ends of the upper frame 31, 31A, but this is not limited to this. The glass holding bracket 37 may also be positioned at the longitudinal center of the upper frame 31, 31A, and the two anti-warping brackets 8, 8 may also be positioned at both longitudinal ends of the upper frame 31, 31A.

1. Doors, 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 (2)

The door comprises a frame body attached to the opening, and a shoji screen housed 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. 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.