JP7374043B2 - resin sash - Google Patents

Description

The present invention relates to a resin sash placed in an opening in a building.

2. Description of the Related Art Conventionally, resin sashes have been known that include a resin frame material and a resin frame material and are placed in an opening of a building.

Japanese Patent Application Publication No. 2016-108909

In recent years, resin sashes such as those described in Document 1 are also required to have fire retardant properties.

An object of the present invention is to further improve fire prevention performance in a resin sash placed in an opening in a building.

One embodiment includes a frame made of resin, inner and outer shoji made of resin, and a plurality of crescents, the inner and outer shoji have a connecting frame, and the connecting frame of the inner and outer shoji is It has a hollow part, a reinforcing member is arranged in the hollow part, and a plurality of opening prevention members are provided between the folding frames, and the crescent is a crescent provided in the folding frame of the inner shoji. It has a lock and a crescent holder provided on the opening stile of the outer shoji, and the opening prevention member is provided on the inner member provided on the opening stile of the inner shoji and the opening stile of the outer shoji, and the opening prevention member is provided on the opening stile of the outer shoji. The crescent and the opening prevention member are arranged adjacent to each other , and the opening prevention member is also arranged at a position apart from the crescent , and the opening prevention member The inner member and the outer member are each fixed to a reinforcing member placed inside the hollow part of the door stile, and the crescent lock and crescent holder of the crescent are each fixed to a reinforcing member placed inside the hollow part of the door stile. It is a resin sash.

According to this embodiment, fire prevention performance can be improved in the resin sash placed in the opening of the building.

FIG. 2 is an interior view of a resin sash according to an embodiment. It is a vertical sectional view of a resin sash of one embodiment. It is a cross-sectional view of a resin sash of one embodiment. It is a perspective view of the joining part of the resin sash of one embodiment, (a) is a diagram explaining the closing of the inner and outer joining stile, (b) is a diagram of the inner member of the opening stopper, (c) is a diagram of the outer member of the opening stopper, and (d) is a diagram of the opening stopper in the closed state of the shoji. FIG. 3 is a diagram for explaining a joining part of a resin sash according to an embodiment, (a) is a cross-sectional view of a joining stile of an inner shoji, and (b) is a cross-sectional view of the outside side of the joining stile of an inner shoji. (c) is a cross-sectional view of the sliding stile of the outer shoji, and (d) is a partial view of the indoor side of the opening stile of the outer shoji as seen from the indoor side. This is a diagram. Note that (b) is written with the left and right sides reversed for the sake of explanation. It is a figure of the joining part of the resin sash of one embodiment, (a) is a cross-sectional view of the joining part when the shoji is closed, and (b) is a diagram showing the state of the opening stopper during normal times. , (c) are diagrams showing the state of the opening stopper in the event of a fire. It is a perspective view of the joining part of the resin sash of other embodiments, (a) is a figure explaining the closing of an inner and outer joining stile, (b) is a figure of the inner member of an opening stop metal fitting. , (c) is a diagram of the outer member of the opening stopper, and (d) is a diagram of the opening stopper in the closed state of the shoji. It is a figure for explaining the joining part of the resin sash of other embodiments, (a) is a cross-sectional view of the joining stile of the inner shoji, and (b) is an outdoor side surface of the joining stile of the inner shoji. (c) is a cross-sectional view of the folding frame of the outer shoji, and (d) is a part of the indoor side of the folding frame of the outer shoji, viewed from the indoor side. This is the view. Note that (b) is written with the left and right sides reversed for the sake of explanation. It is a perspective view of the joining part of the resin sash of other embodiments, (a) is a figure explaining the closing of an inner and outer joining stile, (b) is a figure of the inner member of an opening stop metal fitting. , (c) is a diagram of the outer member of the opening stopper, and (d) is a diagram of the opening stopper in the closed state of the shoji. It is a figure for explaining the joining part of the resin sash of other embodiments, (a) is a cross-sectional view of the joining stile of the inner shoji, and (b) is an outdoor side surface of the joining stile of the inner shoji. (c) is a cross-sectional view of the folding frame of the outer shoji, and (d) is a part of the indoor side of the folding frame of the outer shoji, viewed from the indoor side. This is the view. Note that (b) is written with the left and right sides reversed for the sake of explanation. It is a figure of the joining part of a resin sash, (a) is a cross-sectional view of the joining part when the shoji is closed, and (b) is a cross-sectional view of the joining part in the state where external force is applied. It is a figure of the meeting part of a resin sash at the time of a fire, (a) is a cross-sectional view of a crescent part, and (b) is a cross-sectional view of the upper end vicinity of a meeting part. It is a figure of the meeting part of the resin sash of this embodiment, (a) is a cross-sectional view of a crescent part in normal times, and (b) is a cross-sectional view of a crescent part in a fire. It is a figure of the meeting part of the resin sash of this embodiment, (a) is a cross-sectional view near the upper end in normal times, and (b) is a cross-sectional view near the upper ends in the event of a fire.

A resin sash according to one embodiment will be described with reference to the drawings.
As shown in FIG. 1, the resin sash of this embodiment includes a frame 1 disposed in an opening of a building, and an inner shoji 2 and an outer shoji 3 disposed slidably with respect to the frame 1. There is.

The sash frame 1 of this embodiment has an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14. The left and right vertical frames 13 and 14 are each fixed to the inner peripheral surface of the building opening with fixing means such as screws, thereby forming a frame 1 that extends around the four peripheries of the building opening.

The inner sash 2 of the sash of this embodiment has an upper stile 21, a lower stile 22, a left vertical stile (separate stile) 23, and a right vertical stile (door end stile) 24 arranged around four times, and a panel body is attached to the inner periphery. 25, and the outer shoji 3 is formed by assembling an upper stile 31, a lower stile 32, a left vertical stile (tosaki stile) 33, and a right vertical stile (shōai stile) 34 around the inner periphery. It is formed by attaching a panel body 35 to.
A plurality of crescents 6, 6 for locking the inner and outer shoji 2, 3 in a closed state are provided at the joining parts of the inner and outer shoji 2, 3.

(Frame configuration)
As shown in FIG. 2, the upper frame 11 of the frame 1 includes a substantially flat upper frame body 111 made of a resin material and a metal material such as an aluminum alloy on the inner peripheral surface (lower surface) of the upper frame body 111. It has an upper rail member 112 arranged.
The upper frame main body 111 and the upper rail member 112 are fastened together to the inner circumferential surface (lower surface) of the building opening by means of fixing means b such as screws.

The upper frame main body 111 has an upper frame main body part 111a disposed on the inner peripheral surface of the building opening, and an indoor wall part 111b hanging down from the indoor end of the upper frame main body part 111a.

The upper rail member 112 includes an upper rail fixing part 112a fixed to a building opening together with the upper frame main body 111, an upper inner rail 112b vertically installed below the indoor side of the upper rail fixing part 112a, and an upper rail fixing part. It has an upper and outer rail 112c that is vertically installed below the outdoor side of the rail 112a.

Between the upper inner rail 112b and the upper outer rail 112c, a wind blocking member 41 having a fin-shaped wind blocking portion is arranged above the sliding frames 23, 34 of the inner shoji 2 and outer shoji 3. ing.

As shown in FIG. 2, the lower frame 12 of the frame 1 includes a substantially flat lower frame body 121 made of a resin material and a metal material such as an aluminum alloy on the inner peripheral surface (upper surface) of the lower frame body 121. It has a lower rail member 122 arranged therein.
The lower frame main body 121 and the lower rail member 122 are fastened together to the inner circumferential surface (upper surface) of the building opening by means of fixing means b such as screws.

The lower frame main body 121 has a lower frame main body part 121a fixed to a building opening, and an indoor wall part 121b erected upward from the indoor end of the lower frame main body part 121a.

The lower rail member 122 includes a lower rail fixing part 122a that is fixed to the building opening together with the lower frame main body 121, a lower inner rail 122b that stands above the indoor side of the lower rail fixing part 122a, and a lower rail fixing part 122a. It has a lower outer rail 122c that stands above the outdoor side of the vehicle.

A wind blocking member having a fin-shaped wind blocking part between the lower inner rail 122b and the lower outer rail 122c of the lower frame 12 and below the sliding frames 23, 34 of the inner shoji 2 and outer shoji 3. 42 are arranged.

The left and right vertical frames 13 and 14 of the frame body 1 have substantially the same configuration as shown in FIG. 3, so the right vertical frame 14 will mainly be described here.
Note that, in the drawings, corresponding parts of the left vertical frame are given appropriate symbols.

The right vertical frame 14 is made of a resin material, and includes a right vertical frame body portion 141a formed in a substantially flat plate shape, and a center wall portion protruding in the inner circumferential direction from a substantially central position of the right vertical frame body portion 141a in the perspective direction. 141b, an indoor side wall part 141c protruding from the indoor side end of the right vertical frame main body part 141a in the inner circumferential direction, and an outdoor side wall part protruding from the indoor side end of the right vertical frame main body part 141a in the inner circumferential direction. 141d, and is fixed to the inner circumferential surface of the opening of the building using fixing means such as screws.

The center wall portion 141b has a fin-like airtight piece extending both indoors and outdoors at the inner peripheral end. The fin-shaped airtight piece makes airtightness between the inner shoji 2 and the right vertical frame 14 by coming into contact with the door frame 24 of the inner shoji 2 when the shoji is closed.

The right vertical frame 14 is made of a metal material such as aluminum alloy or steel and has a substantially L-shaped cross section or a substantially U-shaped cross section, on the inner peripheral side of the right vertical frame main body 141a and on the indoor side of the center wall portion 141b. It has a reinforcing member 142, and a heating expansion material is arranged on the inner circumferential surface of the reinforcing member 142 so as to face the door frame 24 of the inner shoji 2.

The left vertical frame 13 is made of a metal material such as aluminum alloy or steel and has a substantially L-shaped or U-shaped cross section on the inner peripheral side of the left vertical frame main body 131a and on the outdoor side of the center wall 131b. It differs from the right vertical frame 14 in that a heating expansion material is arranged on the inner peripheral surface of the reinforcing member 132 so as to face the door frame 33 of the outer shoji 3. .

When fixing the frame 1 of the sash of this embodiment to a building opening, for example, the left vertical frame 13 → the lower frame 12 → the right vertical frame 14 → the upper frame 11 are arranged and fixed around the four peripheries of the building opening in this order. By doing so, the frame body 10 can be arranged around the four circumferences of the building opening.

At this time, at least the upper inner rail 112b, upper outer rail 112c, and lower inner rail 122b of the horizontal frame (upper frame 11, lower frame 12), a part of the lower outer rail 122c, or the vertical frame (Left vertical frame 13, right vertical frame 14) By cutting out a part of the central wall portions 131b, 141b, etc., the upper frame 11, lower frame 12, and left and right vertical frames 13, 14 may interfere with each other during installation. This can be prevented.

(Composition of internal shoji)
As shown in FIG. 2, the upper stile 21 of the inner shoji 2 has an upper stile body 211 made of a resin material, and a reinforcing core material 212 made of a metal material such as an aluminum alloy and installed inside the upper stile body 211. There is.
The upper stile main body 211 has a panel opening 211a for holding the panel body 25, and an opening 211b formed on the outer peripheral side of the panel opening 211a and guided by the upper inner rail 112b. A reinforcing core material 212 is arranged.

A reinforcing member 213 made of a metal material such as steel is disposed within the panel opening 211a, and the panel body 25 is held in the panel opening 211a via the reinforcing member 213 and a flame-retardant glazing channel. ing.
An airtight piece that abuts or is close to the upper inner rail 112b is provided at the upper end of the inner and outer wall constituting the opening 211b.

The reinforcing core material 212 includes a bottom wall portion 212a disposed along the bottom of the opening 211b, and an indoor wall portion 212b extending along the indoor wall of the opening 211b continuously from the indoor end of the bottom wall portion 212a. It has an outdoor wall part 212c that extends along the outer wall of the opening 211b continuously from the outdoor end of the bottom wall part 212a.

A reinforcing member 214 made of a thin plate made of steel or the like is placed on the top surface of the bottom wall 212a, and the reinforcing core material 212 placed in the opening 211b and the reinforcing member 214 made of a thin plate are placed in the panel opening 211a. The reinforcing member 213 is connected to the reinforcing member 213 by a connecting means with the bottom wall of the opening 211b interposed therebetween.

The upper parts of the inner surfaces of the indoor wall part 212b and the outdoor wall part 212c of the reinforcing core material 212, the upper surface of the thin plate reinforcing member 214, and the reinforcing member 213 disposed at the panel frontage part 211a are heated and expanded as necessary. materials are placed.
It should be noted that heat-expanding materials (indicated by diagonal lines in a rectangular shape in the figure) are arranged at appropriate positions on the frame and the shoji.

As shown in FIG. 2, the lower stile 22 of the inner shoji 20 includes a lower stile main body 221 made of a resin material, and a first reinforcing core material 222 and a first reinforcing core material 222 made of a metal material such as aluminum alloy and installed inside the lower stile main body 221. 2 reinforcing core material 223.
The lower stile main body 221 has a panel opening 221a on the inner peripheral side, a hollow part 221b arranged on the outer periphery of the panel opening 221a, and an opening 221c on the outer peripheral side.

The first reinforcing core material 222 has a hollow shape with a substantially rectangular cross section, and is disposed within the hollow portion 221b of the lower stile main body 221. The second reinforcing core material 223 has a cross-sectional shape including a rectangular hollow part and an opening opening downward, and is disposed within the opening 221c of the lower stile main body 221.

Inside the hollow part of the first reinforcing core material 222, a first reinforcing member 224 made of steel or the like and having a substantially U-shaped cross section is arranged so as to open toward the outer circumference. A second reinforcing member 225 and a third reinforcing member 226 each having a substantially U-shaped cross section are arranged so as to open toward the interior of the room.

A fourth reinforcing member 227 made of a metal material such as steel is disposed within the panel opening 221a, and the panel body 25 is inserted into the panel opening through the fourth reinforcing member 227 and a flame-retardant glazing channel. 221a.

The fourth reinforcing member 227, the first reinforcing core material 222, and the first reinforcing member 224 are connected via a connecting means across the bottom wall of the panel frontage portion 221a.
Further, the first reinforcing core material 222, the second reinforcing core material 223, and the second reinforcing member 225 are connected by a connecting means across the bottom wall of the hollow part 221b of the lower stile main body 221, and the second reinforcing member 225 and the third reinforcing member 226 are connected by a connecting means with the intermediate wall of the second reinforcing core material 223 interposed therebetween.
At a predetermined position of the opening 221c of the lower stile main body 221, a wheel 92 that runs on the lower inner rail 122b is arranged, and is arranged to be able to freely run on the lower inner rail 122b.

As shown in FIG. 3, the right stile (door stile) 24 of the inner shoji 20 is made of a resin material and includes a right stile main body 241b having a hollow section with a substantially rectangular cross section, and a right stile main body 241b. It has a panel opening 241a formed on the inner peripheral side and for holding the panel body 25.

A first reinforcing member 242 made of a metal material such as steel and having a substantially U-shaped cross section that opens toward the outer circumference is disposed within the hollow portion of the right stile main body portion 241b. A second reinforcing member 243 made of a metal material and having a substantially U-shaped cross section that opens toward the inner periphery is disposed within the panel opening 241a. It is held in the panel frontage portion 241a through a natural glazing channel.
The first reinforcing member 242 and the second reinforcing member 243 are connected by a connecting means across the inner peripheral wall of the right stile main body 241b.
Note that the first reinforcing member 242 disposed in the hollow portion of the right stile main body portion 241b is not limited to a substantially U-shaped cross section, and may have a hollow structure with a substantially rectangular cross section, for example.

The left stile 23 of the inner shoji 2 is made of a resin material, and as shown in FIG. It has a panel opening 231a formed therein.

A contact piece 231c extending toward the outdoor side is formed on the inner circumferential end of the left vertical stile 23, and a contact piece 231c is formed on the indoor side at the outer circumferential end of the right vertical stile 34 of the outer shoji 3. The airtight material s is in contact with it.
For example, a crescent lock 61 having fireproof performance is attached to the outer peripheral surface of the left vertical stile 23.

Inside the hollow part of the left stile main body part 231b, there is a facing surface part 232a made of a metal material such as steel that runs along the bottom wall of the panel opening 231a, a facing surface part 232b that runs along the outdoor side surface of the left stile main body part 231b, and an outer peripheral side. A first reinforcing member 232 having a prospective surface portion is disposed.

A third reinforcing member 234 having a substantially U-shaped cross section and opening toward the inner periphery is disposed within the panel opening 231a, and the panel body 25 includes the third reinforcing member 234 and flame-retardant glazing. It is held in the panel opening 231a via a channel.

The first reinforcing member 232 and the third reinforcing member 234 are connected by a connecting means with the inner circumferential wall of the left stile main body portion 231b and the heat-expandable material interposed therebetween.
The panel body 25 used in the inner shoji 20 is made of fire-resistant and heat-resistant glass, such as crystallized glass.

(Configuration of outside shoji)
The outer shoji 3 will be explained below, but since the outer shoji 3 and the inner shoji 2 basically have the same structure in terms of upper and lower frames and door frame, here, we will especially explain the right side of the outer shoji 3. The vertical stile (seam stile) 34 will be explained, and the explanation of the structure similar to that of the inner shoji 2 will be omitted.

The right vertical stile 34 of the outer shoji 3 is made of a resin material, and as shown in FIG. It has a panel opening 341a.

In the hollow part of the right stiles main body 341b of the right stiles 34, there are a facing wall 342a, an indoor facing wall 342b, and an outdoor facing wall 342c, and a first wall having a substantially U-shaped cross section and opening toward the outer circumference. A reinforcing member 342 is disposed, and a second reinforcing member 343 having a substantially U-shaped cross section and opening toward the inner circumference is disposed within the panel frontage 341a.

The first reinforcing member 342 and the second reinforcing member 343 are connected by a connecting means with the inner peripheral wall of the right stile main body 341b in between, and the panel body 35 is connected to the second reinforcing member 343 and the It is held in the panel frontage 341a via a combustible glazing channel.
The first reinforcing member 342 is provided with a heat-expanding material that expands when heated in the event of a fire, as necessary.

A contact piece 341c extending toward the indoor side is formed on the inner circumferential side end of the right vertical stile 34, and a contact piece 341c is formed on the outer circumferential side end of the left vertical stile 23 of the inner shoji 2 on the indoor side. The airtight material s is in contact with it.
An opening prevention member (opening prevention metal fitting) 7 is provided between the left vertical stile 23 of the inner shoji 2 and the right vertical stile 34 of the outer shoji 3. A crescent receiver 62 having fireproof performance is provided at the.

As described above, in the resin sash of this embodiment, the upper, lower, left, and right frames are composed of approximately flat plate-shaped members and upper and lower rail members, etc., so the approximately flat plate-shaped members are sequentially arranged and fixed in the opening of the building. The upper and lower rail members can be placed on the inner peripheral surfaces of the upper and lower frames and fixed to the opening of the building using fixing means such as screws. It can be easily installed as a retrofit for openings in existing buildings, and the reduction in opening area after installation can be kept to a minimum.

-Opening prevention structure-
Hereinafter, a structure for preventing opening of the joining portion of a resin sash according to an embodiment will be described with reference to the drawings.
Generally, a sash has a crescent 6 restraining the opening stile 23 of the inner shoji 2 and the opening stile 34 of the outer shoji 3, but resin sashes etc. with a height dimension exceeding 2000 mm are used as shown in FIG. , a large moment force F2 is applied to the crescent 6 due to external pressure such as wind, etc., which causes the force F1 to separate the opening stile 23 of the inner shoji 2 and the opening stile 34 of the outer shoji 3 in the expected direction. There was a risk that the stile would be deformed or damaged.

In addition, as shown in Fig. 12(a), in the event of a fire, when moment force F3 is applied to the crescent 6 due to deformation such as elongation or warping of each stile material, the crescent 6 deforms or breaks and becomes internally damaged. , the restraint of the outer shoji 2 and 3 may not be maintained. Therefore, even if the heat-expandable material f placed in the frames 23 and 34 of the inner and outer shoji 2 and 3 expands, a gap will be created between the frames 23 and 34, and the interior and exterior will not be sufficiently closed. could not.

In addition, as shown in FIG. 12(b), near the upper and lower ends of the stile 23, 34 of the inner and outer shoji 2, 3, in the event of a fire, the inner and outer stile materials may be deformed by elongation, warping, etc. When a force F4 is applied to separate the frames 23 and 34 of the outer shoji 2 and 3 in the expected direction, a gap may be created between the frames 23 and 34, and the heating expansion material No blockage was possible.

Therefore, in the resin sash of the embodiment, as shown in FIG. 1, an opening prevention fitting 7 is arranged adjacent to the crescent 6 at the joining part of the inner and outer shoji 2 and 3.
In addition, in the resin sash of the embodiment, the opening prevention fittings 7 are provided adjacently below the upper and lower crescents 6, 6, and near the upper end of the stile, near the lower end, and above the upper crescent 6. A total of five opening prevention metal fittings 7 are provided at the same position.

The opening prevention fitting 7 has an inner member 71 provided on the outdoor side surface of the sliding stile 23 of the inner shoji 2 and an outer member 72 provided on the indoor side surface of the sliding stile 34 of the outer shoji 3.

- Opening prevention fitting of the first embodiment -
The inner member 71 of the opening prevention fitting 7 of this embodiment is made of a metal material such as steel, and as shown in FIG. It has a hook part 71a arranged on the outdoor side of the fixing part 71b and extending in the inner peripheral direction, and a spacer 71c stacked on the fixing part 71b.

As shown in FIG. 4(a), the inner member 71 is disposed adjacent to the crescent lock 61 on the outdoor side surface of the door frame 23 of the inner shoji 2, and as shown in FIG. It is fixed to the facing surface part 232b of the reinforcing member 232 disposed in the hollow part of the frame 23 with screws b.
Note that the inner member 71 may be fixed to the frame 23 and the reinforcing member 232 by forming screw holes in the frame 23.

As shown in FIG. 5(b), the sliding frame 23 of the inner shoji 2 has a cutout 231d in the abutment piece 231c in the area where the inner member 71 is fixed, so that it can be removed when the shoji is closed. This prevents the outer member 72 fixed to the frame 34 of the shoji 3 from interfering with the contact piece 231c.
Note that the spacer 71c is not necessarily required, and the number of stacked spacers 71c may be appropriately set depending on the dimensions of the joining frame.

The outer member 72 of the opening prevention fitting 7 of this embodiment is made of a metal material such as steel, and as shown in FIG. It has a lower fixing part 72e, an upper leg part 72b and a lower leg part 72c rising from the upper fixing part 72d and the lower fixing part 72e, and a hook part 72a that connects the upper leg part 72b and the lower leg part 72c.

As shown in FIG. 4(a), the outer member 72 is arranged adjacent to the crescent receiver 62 on the indoor side surface of the opening frame 34 of the outer shoji 3, and as shown in FIG. 5(c), A reinforcing member 342 disposed in the hollow part of the frame 34 is fixed to the indoor facing wall 342b with screws b.
Note that the outer member 72 may be fixed to the frame 34 and the reinforcing member 342 by forming screw holes in the frame 34.

As shown in FIG. 5(d), the opening frame 34 of the outer shoji 3 has a cutout 341d in the contact piece 341c in the area where the outer member 72 is fixed, so that the inner stile 34 is closed when the shoji is closed. This prevents the inner member 71 fixed to the frame 23 of the shoji 2 from interfering.

When the inner and outer shoji 2, 3 are closed, the hook portion 71a of the inner member 71 is pulled by the outer member 72, as shown in FIGS. It is located on the outdoor side of the hanging part 72a, so that even if the stile material is warped or otherwise deformed due to external pressure such as wind or heat during a fire, the stile 23 of the inner shoji 2 and the stile 34 of the outer shoji 3 are protected. It is possible to prevent the crescent 6 and the stile from being separated from each other in the indoor and outdoor directions, thereby preventing excessive force from being applied to the crescent 6 and the like, thereby preventing the crescent 6, the stile, and the like from being destroyed.

Furthermore, in the opening prevention fitting 7 of this embodiment, as shown in FIG. 6(c), the hook portion 71a of the inner member 71 is located above the outer member 72 and between the lower leg portions 72b and 72c. Even if there is a difference in the heat elongation of the stile 23 of the inner shoji 2 and the stile 34 of the outer shoji 3, it is possible to prevent the inner member 71 and the outer member 72 from shifting in the vertical direction. , the crescent 6, the frame, etc. can be prevented from being destroyed.

-Opening prevention fitting of second embodiment-
The inner member 71 of the opening prevention fitting 7 of this embodiment is similar to the inner member 71 of the first embodiment, and is made of a metal material such as steel, and as shown in FIG. It has a fixing part 71b for fixing to the frame 23, a hook part 71a arranged on the outdoor side of the fixing part 71b and extending in the inner peripheral direction, and a spacer 71c stacked on the fixing part 71b. ing.
As shown in FIG. 7(a), the inner member 71 is arranged adjacent to the crescent lock 61 on the outdoor side surface of the door stile 23, and as shown in FIG. It is fixed to the facing surface portion 232b of the reinforcing member 232 disposed in the hollow portion with screws b.

As shown in FIG. 8(b), the opening stile 23 of the inner shoji 2 has a cutout 231d in the contact piece 231c in the area where the inner member 71 of the opening stile 23 is fixed. This prevents the outer member 72 fixed to the frame 34 of the outer shoji 3 from interfering when the shoji is closed.

The outer member 72 of the opening prevention fitting 7 of this embodiment is made of a metal material such as steel, and as shown in FIG. It has a hook part 72a arranged on the indoor side of the fixing part 72f and extending in the inner circumferential direction, and a spacer 72g stacked on the fixing part 72f.
As shown in FIG. 7(a), the outer member 72 is disposed adjacent to the crescent receiver 62 on the outdoor side surface of the partially cut out frame 34, and as shown in FIG. 8(c), A reinforcing member 342 disposed in the hollow part of the stile is fixed to the indoor facing wall 342b with screws b.
Note that the outer member 72 may be fixed to the frame 34 and the reinforcing member 342 by forming screw holes in the frame 34.
Further, the spacers 71c and 72g of the inner member 71 and the outer member 72 are not necessarily required, and the number of stacked spacers 71c and 72g may be appropriately set depending on the dimensions of the stile.

As shown in FIG. 8(d), the opening stile 34 has a cutout 341d in the abutment piece 341c in the area where the outer member 72 is fixed, so that when the shoji is closed, the opening of the inner shoji 2 is removed. This prevents the inner member 71 fixed to the frame 23 from interfering.

When the inner and outer shoji 2 and 3 are closed, as shown in FIGS. 7(a) and 7(d), the hook portion 71a of the inner member 71 is connected to the outdoor side of the hook portion 72a of the outer member 72. Therefore, even if the stile material is warped or otherwise deformed due to external pressure such as wind or heat during a fire, the stile 23 of the inner shoji 2 and the stile 34 of the outer shoji 3 will be separated from each other in the indoor-outdoor direction. It is possible to prevent damage to the crescent, frame, etc. due to excessive force being applied to the crescent, etc.

- Opening prevention fitting of third embodiment -
The inner member 71 of the opening prevention fitting 7 of this embodiment is made of a metal material such as steel, and as shown in FIG. It has a hook part 71a that is arranged on the outdoor side of the fixed part 71b and extends upward and in the inner circumferential direction, and a spacer 71c that is stacked on the fixed part 71b.

The inner member 71 is arranged adjacent to the crescent lock 61 on the outdoor side surface of the door frame 23, as shown in FIG. 9(a), and inside the hollow part of the door frame 23 as shown in FIG. 10(a). It is fixed to the facing surface portion 232b of the reinforcing member 232 with screws b.

As shown in FIG. 10(b), the inner member 71 has a cutout 231d in the abutting piece 231c near the area where the inner member 71 of the stile 23 is fixed, and when the shoji is closed. This prevents the outer member 72 fixed to the frame 34 of the outer shoji 3 from interfering.

The outer member 72 of the opening prevention fitting 7 of this embodiment is made of a metal material such as steel, and as shown in FIG. It has a hook part 72a arranged on the indoor side of the fixing part 72f and extending downward and in the inner peripheral direction, and a spacer 72g stacked on the fixing part 72f.

As shown in FIG. 9(a), the outer member 72 is disposed on the outdoor side of the stile 34 adjacent to the crescent receiver 62, and as shown in FIG. 10(c), inside the hollow part of the stile. The reinforcing member 342 to be placed is fixed to the indoor facing wall 342b with screws b.
Note that the spacers 71c and 72g of the inner member 71 and the outer member 72 are not necessarily required, and the number of stacked spacers 71c and 72g may be appropriately set depending on the dimensions of the stile.

As shown in FIG. 10(d), the closing frame 34 has a cutout portion 341d in the abutment piece 341c near the area where the outer member 72 is fixed, so that the inner sash 2 is closed when the shoji is closed. This prevents the inner member 71 fixed to the frame 23 from interfering.

When the inner and outer shoji 2 and 3 are closed, as shown in FIGS. 9(a) and 9(d), the hook portion 71a of the inner member 71 is connected to the outdoor side of the hook portion 72a of the outer member 72. Therefore, even if the stile material is warped or otherwise deformed due to external pressure such as wind or heat during a fire, the stile 23 of the inner shoji 2 and the stile 34 of the outer shoji 3 will be separated from each other in the indoor-outdoor direction. It is possible to prevent damage to the crescent, frame, etc. due to excessive force being applied to the crescent, etc.

As described above, in the resin sash according to the present embodiment, the opening prevention member is provided adjacent to the crescent at the joining part of the inner and outer shoji 2 and 3, so that external pressure from wind or other external pressure is applied to the crescent. Even if the crescent is hit, the sliding stile 23 of the inner shoji 2 and the sliding stile 34 of the outer shoji 3 are prevented from being separated in the indoor-outdoor direction, thereby suppressing the crescent from breaking.

In addition, even if the frames 23 and 34 of the inner and outer shoji 2 and 3 are warped or otherwise deformed in the event of a fire, the hook portion 71a of the inner member 71 of the opening stopper member and the hook portion 72a of the outer member 72 are engaged in the direction of the projection to prevent the collapsible frames from separating from each other in the direction of the projection.
At this time, as shown in FIG. 13(a), the crescent lock 61 and the inner member 71 of the opening prevention fitting 7 are connected via the reinforcing member 232 arranged in the hollow part of the stile 23 of the inner shoji 2, Since the crescent receiver 62 and the outer member 72 of the opening prevention fitting 7 are connected via the reinforcing member 342 arranged in the hollow part of the opening frame 34 of the outer shoji 3, the reinforcing members of the opening frame at the crescent portion are connected to each other. As shown in FIG. 13(b), communication between the inside and outside due to the heating expansion material can be reliably prevented.

In addition, as shown in FIG. 14(a), the opening prevention metal fittings 7 provided near the upper and lower ends of the sliding frames 23 and 34 prevent the sliding frames 23 and 3 of the inner and outer shoji 2 and 3 from opening during a fire. 34 is warped or otherwise deformed, the hook portion 71a of the inner member 71 of the opening prevention fitting 7 and the hook portion 72a of the outer member 72 are engaged in the forward direction, as shown in FIG. 14(b). It is possible to prevent the collapsible frames from moving away from each other in the expected direction.

Even if the stile made of resin material melts due to a fire, the opening prevention metal fitting 7 similarly prevents the reinforcing member placed inside the hollow part of the stile from separating in the expected direction. Since separation of the reinforcing members within the glass frontage can be suppressed, it is possible to fill the space between each reinforcing member with the heat-expandable material, and it is possible to suppress communication between indoor and outdoor areas at the joining part.

Although the resin sash of the embodiment has been described above, the number of crescents provided on the resin sash is not limited to two, and the number and position of the opening prevention members are not limited either. For example, there may be only one crescent, or an opening prevention member may be provided above and adjacent to the crescent.

In addition, it goes without saying that the above embodiments do not limit the invention described in the claims, but are treated as illustrative examples.

23: Left vertical stile (joining stile)
232: Reinforcement member (first reinforcement member)
34: Right stile (joining stile)
342: Reinforcement member (first reinforcement member)
61: Crescent lock 62: Crescent receiver 7: Opening prevention metal fitting (opening prevention member)
71: Inner member 72: Outer member

Claims (1)

Equipped with a resin frame, resin inner and outer shoji, and multiple crescents,
The inner and outer shoji have matching frames,
The connecting frames of the inner and outer shoji have a hollow part, and a reinforcing member is arranged inside the hollow part, and a plurality of opening prevention members are provided between the connecting frames,
The crescent has a crescent lock provided in the connecting frame of the inner shoji and a crescent receiver provided in the connecting frame of the outer shoji, respectively .
The opening prevention member has an inner member provided at the opening stile of the inner shoji and an outer member provided at the opening stile of the outer shoji and engages the inner member when the shoji is closed,
The crescent and the opening prevention member are arranged at adjacent positions , and the opening prevention member is also arranged at a position apart from the crescent ,
The inner member and the outer member of the opening prevention member are each fixed to a reinforcing member disposed within the hollow part of the stile,
The crescent lock and crescent receiver of the crescent are each a resin sash that is fixed to a reinforcing member placed inside the hollow part of the frame.

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