JP7061858B2 - sash - Google Patents

Description

Regarding sashes placed in openings such as buildings.

Conventionally, as a sash arranged in an opening of a building, a sash provided with a resin frame and a resin stile having high heat insulating properties is known.

Japanese Unexamined Patent Publication No. 2016-108909

The resin sash shown in Patent Document 1 can have high heat insulating properties by taking advantage of the characteristics of the resin material, but has one aspect that it is vulnerable to flames and heat.
In recent years, even in a heat insulating sash having a part made of a resin material, high fire prevention performance has been required.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sash having high fire protection performance as well as heat insulation performance.

One embodiment of the present invention includes a resin frame fixed to the inner peripheral surface of the opening , an internal sash and an external sash , and is provided along the longitudinal direction on the indoor side and the outdoor side of the outer peripheral surface of the frame. A heat-expanding material that expands by heating is attached, and the heat-expanding material is sandwiched between the outer peripheral surface of the frame and the inner peripheral surface of the opening , and the internal shoji is placed on the indoor side of the frame. It is a sash in which a shoji screen is placed on the outdoor side of the frame .

According to the present embodiment, it is possible to impart fire prevention performance to a sash having a member made of a resin material while maintaining heat insulation performance.

It is external drawing of the sash which concerns on embodiment of this invention. It is a vertical sectional view of the sash which concerns on embodiment of this invention. It is sectional drawing of the sash which concerns on embodiment of this invention. It is an enlarged view of the upper frame part of the sash which concerns on embodiment of this invention, (a) is a state before a fire, (b) is a figure which shows the state after a fire. It is an enlarged view of the lower frame part of the sash which concerns on embodiment of this invention, (a) is the state before a fire, (b) is a figure which shows the state after a fire. It is an enlarged view of the right vertical frame part of the sash which concerns on embodiment of this invention, (a) is the state before a fire, (b) is a figure which shows the state after a fire. It is the figure of the upper frame of the sash which concerns on embodiment of this invention, (a) is the plan view seen from the bottom, (b) is the aa sectional view of (a), (c) is (c). It is a bb sectional view of a). It is an assembly drawing of the internal sash of the sash which concerns on embodiment of this invention. It is a figure of the joint part of the lower sash and the right stile which concerns on embodiment of this invention, (a) is an exploded perspective view, (b) is an exploded front view, (c) is an exploded plane. It is a figure. It is a figure of the joint part of the lower sash and the right stile which concerns on embodiment of this invention, (a) is a perspective view, (b) is a front view, (c) is a plan view. .. It is a figure of the end cap and the corner block of the sash which concerns on embodiment of this invention, (a) is a side view of a corner block, (b) is a front view of a corner block, (c) is an end part. It is a side view of a cap, (d) is a front view of an end cap, and (e) is a plan view of an end cap.

The sash according to the embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the sash according to the embodiment of the present invention includes a frame body 10 arranged at a building opening, and an inner shoji 20 and an outer shoji 30 slidably arranged with respect to the frame body 10. I have.
The frame body 10 of the sash of the present embodiment has an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14, and each frame material is not framed, and the upper frame 11, the lower frame 12 The left and right vertical frames 13 and 14 are fixed to the inner peripheral surfaces of the building opening by fixing means such as screws, so that the frame body 10 spanning the four circumferences of the building opening is formed.
Further, the internal shoji 20 of the sash of the present embodiment is formed by assembling the upper stile 21, the lower stile 22, the left sash (combination stile) 23 and the right sash (door end stile) 24 into four laps, and on the inner circumference thereof. The outer sash window 30 is formed by attaching a panel body 25, and the outer sash window 30 is formed by assembling an upper sash 31, a lower sash 32, a left sash (door tip sash) 33, and a right sash (combination sash) 34 in four laps. It is formed by attaching a panel body 35 to the inner circumference.

(Structure of frame)
As shown in FIG. 2, the upper frame 11 of the frame body 10 has a substantially flat plate-shaped upper frame main body 111 made of a resin material and an upper rail member 112 made of a metal material such as an aluminum alloy. Then, in a state where the upper rail member 112 is arranged on the inner peripheral surface (lower surface) of the upper frame main body 111, the upper frame main body 111 and the upper rail member 112 are attached to the inner peripheral surface of the building opening by a fixing means b such as a screw. Both are fixed to (bottom surface).
The upper frame main body 111 has an upper frame main body 111a fixed to the opening of the building and an indoor side wall 111b hanging from the indoor end of the upper frame main body 111a.

The upper rail member 112 includes an upper rail fixing portion 112a fixed to the building opening together with the upper frame main body 111, an upper inner rail 112b suspended below the indoor side of the upper rail fixing portion 112a, and an upper rail fixing portion. It has an upper / outer rail 112c that is vertically installed below the outdoor side of the 112a.
A wind blocking member having a fin-shaped wind blocking portion between the upper inner rail 112b and the upper outer rail 112c of the upper frame 11 and above the combination stiles 23 and 34 of the inner sash 20 and the outer sash 30. 71 is arranged.

As shown in FIG. 2, the lower frame 12 of the frame body 10 has a substantially flat plate-shaped lower frame main body 121 made of a resin material and a lower rail member 122 made of a metal material such as an aluminum alloy. Then, in a state where the lower rail member 122 is arranged on the inner peripheral surface (upper surface) of the lower frame main body 121, the lower frame main body 121 and the lower rail member 122 are attached to the inner peripheral surface of the building opening by a fixing means b such as a screw. Both are fixed to (upper surface).
The lower frame main body 121 has a lower frame main body portion 121a fixed to the opening of the building and an indoor side wall portion 121b standing upward from the indoor side end of the lower frame main body portion 121a.

The lower rail member 122 includes a lower rail fixing portion 122a fixed to the building opening together with the lower frame main body 121, an indoor side lower rail 1222b standing above the indoor side of the lower rail fixing portion 122a, and a lower rail fixing portion. It has a lower outer rail 122c that stands above the outdoor side of 122a.
A wind blocking member having a fin-shaped wind blocking portion between the lower inner rail 122b and the lower outer rail 122c of the lower frame 12 and below the combination stiles 23 and 34 of the inner sash 20 and the outer sash 30. 72 are arranged.

As shown in FIG. 3, the left and right vertical frames 13 and 14 of the frame body 10 are made of a resin material and are formed in a substantially flat plate shape, and the inner circumference of the building opening is provided by fixing means b and b such as screws. It is fixed to the surface.
The left and right vertical frames 13 and 14 are fixed to the opening of the building from the left and right vertical frame main bodies 131a and 141a and the left and right vertical frame main bodies 131a and 141a from the substantially central position in the prospective direction to the inner peripheral direction. The central wall portions 131b and 141b to be projected, the indoor side wall portions 131c and 141c projecting in the inner peripheral direction from the indoor side ends of the left and right vertical frame main bodies 131a and 141a, and the left and right vertical frame main bodies It has outdoor wall portions 131d and 141d projecting from the outdoor ends of 131a and 141a in the inner peripheral direction.
The central wall portions 131b and 141b have fin-shaped airtight pieces extending on both indoor and outdoor sides at the inner peripheral end. The fin-shaped airtight piece abuts on the door stiles 24 and 33 of the inner and outer sashes 20 and 30 when the inner and outer sashes 20 or 30 are closed, and the inner and outer sashes 20 and 30 are closed. The airtightness between the shoji 20 and the right vertical frame 14 and the airtightness between the shoji 30 and the left vertical frame 13 are measured.

The left vertical frame 13 has a reinforcing member 132 made of a metal material on the inner peripheral side of the left vertical frame main body 131a and on the outdoor side of the central wall 131b, and the right vertical frame 14 has a right vertical frame main body. A reinforcing member 142 made of a metal material is provided on the inner peripheral surface of the portion 141a and on the indoor side of the central wall portion 141b.
The reinforcing members 132 and 142 are long members having a substantially L-shaped cross section made of a metal material such as an aluminum alloy or steel, and are arranged over the entire lengths of the left and right vertical frames 13 and 14.
The reinforcing members 132 and 142 arranged on the left and right vertical frames 13 and 14 are built together with the left and right vertical frame main bodies 131a and 141a by the fixing means b and b for fixing the left and right vertical frames 13 and 14, respectively. It is fixed to the opening.
Then, on the inner peripheral surfaces of the reinforcing members 132 and 142 arranged on the left and right vertical frames 13 and 14, the heating and expanding material is arranged so as to face the door tip frames 24 and 33 of the inner and outer shoji sashes 20 and 30. ..

When fixing the frame 10 of the sash of the present embodiment to the 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 on the four circumferences of the building opening in this order. By doing so, the frame body 10 can be arranged with respect to the four circumferences of the building opening.
At this time, at the four corners of the building opening, at least the upper inner rail 112b, the upper outer rail 112c and the lower inner rail 122b, a part of the lower outer rail 122c, or the vertical frame of the horizontal frame (upper frame 11, lower frame 12). By cutting out a part of the central wall portions 131b and 141b of (left vertical frame 13, right vertical frame 14), the upper frame 11, the lower frame 12 and the left and right vertical frames 13 and 14 interfere with each other during mounting. Can be prevented.

(Composition of internal shoji)
As shown in FIG. 2, the upper stile 21 of the inner sash 20 has an upper stile main body 211 made of a resin material and a reinforcing core material 212 made of a metal material such as an aluminum alloy and built in the upper stile main body 211. There is.
The upper frame main body 211 has a panel frontage portion 211a for holding the panel body 25, and an opening portion 211b formed on the outer peripheral side of the panel frontage portion 211a and guided by the upper inner rail 112b, and has an opening portion 211b in the opening portion 211b. A reinforcing core material 212 is arranged.

A reinforcing member 213 made of a metal material such as steel is arranged in the panel frontage portion 211a, and the panel body 25 is held by the panel frontage portion 211a via the reinforcing member 213 and the flame-retardant glazing channel 219. Has been done.
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 walls constituting the opening 211b.

The reinforcing core material 212 has a bottom wall portion 212a arranged along the bottom of the opening 211b and an interior wall portion 212b extending along the interior wall of the opening 211b continuously to the interior side end of the bottom wall portion 212a. And has an outdoor wall portion 212c that is continuous with the outdoor end of the bottom wall portion 212a and extends along the outer wall of the opening 211b.
The reinforcing core member 212 arranged in the opening 211b and the reinforcing member 213 arranged in the panel frontage 211a are connected by connecting means with the bottom wall of the opening 211b sandwiched between them.

As shown in FIG. 2, the lower stile 22 of the inner sash 20 has 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 an aluminum alloy and built in the lower stile main body 221. It has 2 reinforcing core materials 223.
The lower frame main body 221 has a panel frontage portion 221a on the inner peripheral side, a hollow portion 221b arranged on the outer periphery of the panel frontage portion 221a, and an opening portion 221c on the outer peripheral side.

The first reinforcing core material 222 has a hollow shape having a substantially rectangular cross section, and is arranged in the hollow portion 221b of the lower frame main body 221. The second reinforcing core material 223 has a cross-sectional shape including a rectangular hollow portion and an opening that opens downward, and is arranged in the opening of the opening 221c of the lower frame main body 221.
Inside the hollow portion 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 in the outer peripheral direction, and inside the hollow portion and the opening portion of the second reinforcing core material 223. The second reinforcing member 225 and the third reinforcing member 226 having a substantially U-shaped cross section are arranged so as to open in the indoor direction, respectively.

A fourth reinforcing member 227 made of a metal material such as steel is arranged in the panel frontage portion 221a, and the panel body 25 is placed on the panel frontage via the fourth reinforcing member 227 and the flame-retardant glazing channel 229. It is held by the portion 221a.
The fourth reinforcing member 227, the first reinforcing core member 222, and the first reinforcing member 224 are connected via a connecting means with the bottom wall of the panel frontage portion 221a interposed therebetween.
Further, the first reinforcing core material 222, the second reinforcing core material 223, and the second reinforcing member 225 are connected by connecting means with the bottom wall of the hollow portion 221b of the lower frame main body 221 interposed therebetween, and the second reinforcing member 225 is connected. And the third reinforcing member 226 are connected by connecting means with an intermediate wall of the second reinforcing core material 223 sandwiched between them.
Wheels 92 running on the lower inner rail 122b are arranged at predetermined positions of the opening 221c of the lower stile main body 221 and are freely arranged on the lower inner rail 122b.

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

In the hollow portion of the right stile main body portion 241b, 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 peripheral side is arranged. In the panel frontage portion 241a, a second reinforcing member 243 made of a metal material and having a substantially U-shaped cross section that opens toward the inner peripheral side is arranged, and the panel body 25 is the second reinforcing member 243 and flame retardant. It is held in the panel frontage portion 241a via the sexual glazing channel 249.
The first reinforcing member 242 and the second reinforcing member 243 are connected by a connecting means with a wall portion on the inner peripheral side of the right stile main body portion 241b interposed therebetween.
The first reinforcing member 242 arranged in the hollow portion of the right stile main body portion 241b is not limited to a substantially U-shaped cross-sectional shape, and may be, for example, a hollow structure having a substantially rectangular cross-sectional shape.

The left stile (combination stile) 23 of the internal shoji 20 is made of a resin material, and as shown in FIG. It has a panel frontage portion 231a to be formed.
On the outdoor side of the left stile 23, a smoke return piece 235 made of a metal material forming a smoke return is attached to the indoor side surface of the right stile (combination stile) 34 of the outer shoji 30. A fire protection crescent lock 61 is attached to the outer peripheral surface of the left stile 23.

Inside the hollow portion of the left stile body 231b, there is a prospective surface along the bottom wall of the panel frontage 231a made of a metal material such as steel, and a prospective surface along the outdoor surface of the left stile body 231b and an outer peripheral side. A first reinforcing member 232 having a surface portion and a second reinforcing member 233 fixed to the first reinforcing member 232 and having at least a found surface portion along the indoor side surface of the left stile main body portion 231b are arranged.
On the other hand, in the panel frontage portion 231a, a third reinforcing member 234 having a substantially U-shaped cross section that opens toward the inner peripheral side is arranged, and a heating expansion material f is provided on the bottom wall of the third reinforcing member 234. Have been placed. Then, the panel body 25 is held by the panel frontage portion 231a via the third reinforcing member 234 and the flame-retardant glazing channel 239.

The first reinforcing member 232 and the third reinforcing member 234 are connected by a connecting means with a wall on the inner peripheral side of the left stile main body portion 231b and a heating expansion material f sandwiched between them. Further, the heat expansion material f is arranged on either or both of the first reinforcing member 232 and the second reinforcing member 233.
The panel body 25 used for the internal sash 20 is made of fire-resistant and heat-resistant glass, for example, crystallized glass.

(Composition of shoji)
The external shoji 30 will be described below, but since the external shoji 30 and the internal shoji 20 basically have the same configuration for the upper and lower frames and the door stile, here, in particular, the calling of the outer shoji 30 The stile 34 will be described, and the description of the same configuration as that of the internal shoji 20 will be omitted.

The right stile (combination stile) 34 of the outer sash 30 is made of a resin material and is formed on the inner peripheral side of the right stile main body 341b and the right stile main body 341b having a hollow portion as shown in FIG. It has a panel frontage portion 341a to be formed.
On the indoor side surface of the right stile (combination stile) 34, a smoke repellent piece 345 made of a metal material forming a smoke repellent is attached together with the smoke repellent piece 235 of the left stile (combination stile) 23 of the internal shoji 20. A fire protection crescent receiver 62 is provided on the inner peripheral side of the smoke return piece 345.

In the hollow portion of the right stile main body portion 341b of the right stile (combination stile) 34, a first reinforcing member 342 having a substantially U-shaped cross section that opens to the indoor side is arranged. On the other hand, in the panel frontage portion 341a, a second reinforcing member 343 having a substantially U-shaped cross section that opens toward the inner peripheral side is arranged, and a heating expansion material f is provided on the bottom wall of the second reinforcing member 343. Have been placed. Then, the panel body 35 is held by the panel frontage portion 341a via the second reinforcing member 343 and the flame-retardant glazing channel 349.
The first reinforcing member 342 and the second reinforcing member 343 are connected by a connecting means with a wall on the inner peripheral side of the right stile main body portion 341b and a heating expansion material f sandwiched between them. Further, a heating and expanding material f that expands due to heating at the time of a fire is arranged on the first reinforcing member 342.

As described above, in the present embodiment, the sash arranged on the indoor side of the building opening has a substantially flat plate-shaped member because the upper, lower, left and right frames are composed of substantially flat plate-shaped members, upper and lower rail members, and the like. Since it is possible to sequentially arrange and fix the building openings, arrange the upper and lower rail members on the inner peripheral surfaces of the upper and lower frames, and fix them to the building opening by fixing means such as screws. For example, it can be easily retrofitted to an opening of a building in which fittings have already been constructed on the outdoor side, and a decrease in the opening area after construction can be suppressed to a small extent.

The fire protection structure, which is a characteristic part of the sash of the present embodiment, will be described below.
First, the fire protection structure between the upper frame 11 and the upper stiles 21 and 31 of the inner and outer sashes 20 and 30 will be described with reference to the structure of the upper stile 21 of the upper frame 11 and the inner sash 20.

As shown in FIG. 4A, the upper frame 11 constituting the frame body 10 is formed by arranging an upper rail member 112 made of a metal material on the inner circumference of an upper frame main body 111 made of a resin material.
The upper frame main body 111a of the upper frame main body 111 has a fixed portion 111c attached to a building opening formed in a substantially central portion in a prospective direction in which the upper rail member 112 is arranged, and an indoor side in the prospective direction of the fixed portion 111c. The inner and outer stages 111d and 111e are continuously provided on both sides of the indoor side, and the heat expansion materials f11 and f11 are arranged on the upper surfaces of the inner and outer stages 111d and 111e.

Sealed portions 111f, 111g that come into contact with the building opening when the upper frame 11 is attached to the building opening are provided at both ends of the upper frame main body portion 111a in the prospective direction. The heat expansion materials f11 and f11 arranged between the two are protected.

On the other hand, the upper stile 21 of the internal sash 20 is formed by incorporating a plurality of reinforcing materials made of a metal material into the upper stile main body 211 made of a resin material.
The inner peripheral side of the upper stile main body 211 has an inner panel frontage wall 211c made of a hollow wall on the indoor side, and an outer panel frontage wall 211d made of a hollow wall on the outdoor side. The panel frontage portion 211a is formed by the 211d.

A reinforcing member 213 is arranged on the panel frontage portion 211a, and a flame-retardant glazing channel 219 is arranged on the inner circumference of the reinforcing member 213. A heat expansion material f211 is provided between the reinforcing member 213 and the glazing channel 219.

Further, the outer peripheral side of the upper stile main body 211 has an indoor side wall portion 211g extending upward to the indoor side and an outdoor wall portion 211h extending upward to the outdoor side, and the indoor side wall portion 211g and the outdoor side wall portion 211h are used. , The opening 211b is formed.
The indoor side wall portion 211g and the outdoor side wall portion 211h have locking portions 211i and 211j at the outer peripheral ends, respectively, and the upper end and the outdoor wall of the interior wall portion 212b of the reinforcing core material 212 arranged in the opening 211b. The upper end of the portion 212c is locked.

The reinforcing core material 212 is continuously connected to the bottom wall portion 212a arranged along the bottom of the opening 211b, the interior wall portion 212b continuous with the indoor side end of the bottom wall portion 212a, and the outdoor end of the bottom wall portion 212a. It has an outdoor wall portion 212c, and is formed as a member having a substantially H-shaped cross section in which an opening in the outer peripheral direction is deeply formed as a whole.
The heating expansion material f212 is arranged on the lower surface of the bottom wall portion 212a, and the heating expansion material f213 is arranged on the upper surface of the bottom wall portion 212a. The reinforcing core material 212 arranged at the opening 211b of the upper stile main body 211 and the reinforcing member 213 arranged at the panel frontage 211a sandwich the bottom wall of the opening 211b of the upper stile main body 211 and the heating expansion material f212. It is connected via a connecting means.

Then, in the event of a fire, as shown in FIG. 4B, the heat expansion materials f11 and f11 arranged between the building opening and the upper frame 11 expand, so that the building opening and the upper rail member 112 It is possible to close the space and prevent the fire from spreading on the opening side of the building.
Further, the heat expansion material f213 arranged on the upper surface of the bottom wall portion 212a of the reinforcing core material 212 of the upper stile 21 is restricted in the expansion direction by the indoor wall portion 212b and the outdoor wall portion 212c so as to be directed toward the upper frame 11. Inflate.
Therefore, the heat expansion material f11 arranged on the upper frame 11 and the heat expansion material f213 arranged on the upper surface of the bottom wall portion 212a of the reinforcing core material 212 expand, and the building opening and the upper rail member 112 made of a metal material expand. And the reinforcing core material 212 can be integrally expanded so as to wrap around the reinforcing core material 212, and the space between the upper frame 11 and the inner sash 20 can be closed.

Further, the heat-expanding material f212 arranged on the lower surface of the bottom wall portion 212a of the reinforcing core material 212 of the internal shoji 20 expands to cover the connecting portion between the reinforcing core material 212 and the reinforcing member 213, and the reinforcing member 213 The heat expansion material f211 arranged on the inner circumference can integrally cover the reinforcing member 213 and the fire-resistant panel body 25 by expanding, and can communicate indoors and outdoors with the upper stile 21 of the inner sash 20. It can be suppressed.

Next, the fire protection structure between the lower frame 12 and the lower stiles 22 and 32 of the inner and outer sashes 20 and 30 will be described with reference to the configuration of the lower stile 22 of the lower frame 12 and the inner sash 20.
As shown in FIG. 5A, the lower frame 12 constituting the frame body 10 is formed by arranging a lower rail member 122 made of a metal material on the inner circumference of a lower frame main body 121 made of a resin material.
The lower frame main body 121a of the lower frame main body 121 has a fixed portion 121c attached to a building opening in a substantially central portion in a prospective direction in which a lower rail member 122 is arranged, and an indoor side and an outdoor side in the prospective direction of the fixed portion 121c. It has inner and outer stages 121d and 121e that are continuous on both sides, and heat expansion materials f12 and f12 are arranged on the lower surfaces of the inner and outer stages 121d and 121e.

Sealed portions 121f and 121g that come into contact with the building opening when the lower frame 12 is attached to the building opening are provided at both ends of the lower frame main body portion 121a in the prospective direction. The heat expansion materials f12 and f12 arranged between the two are protected.

On the other hand, the lower stile 22 of the internal sash 20 is formed by incorporating a plurality of reinforcing materials made of a metal material into the lower stile main body 221 made of a resin material.
The inner peripheral side of the lower frame main body 221 has an inner panel frontage wall 221d made of a hollow wall on the indoor side, and an outer panel frontage wall 221e made of a hollow wall on the outdoor side. The panel frontage portion 221a is formed by 221e.

A reinforcing member 227 is arranged on the panel frontage portion 221a, and a flame-retardant glazing channel 229 is arranged on the inner circumference of the reinforcing member 227. A heat expansion material f221 is provided between the reinforcing member 227 and the glazing channel 229.

The lower frame main body 221 has a hollow portion 221b on the outer peripheral side of the panel frontage portion 221a, and the first reinforcing core material 222 is arranged in the hollow portion 221b.
Further, the lower stile body 221 has an indoor side wall portion 221f extending downward from the indoor side and an outdoor side wall portion 221g extending downward from the outdoor side on the outer peripheral side of the hollow portion 221b, and has an indoor side wall portion. The opening 221c is formed by the 221f and the outdoor wall portion 221g.

A second reinforcing core material 223 is arranged in the opening 221c. The second reinforcing core material 223 has a hollow portion 223a, an indoor side wall portion 223b extending downward from the indoor side of the hollow portion 223a, and an outdoor wall portion 223c extending downward from the outdoor side of the hollow portion 223a. The lower opening 223d is formed by the 223b and the outdoor wall portion 223c.
The second reinforcing member 225 is arranged in the hollow portion 223a of the second reinforcing core member 223, the third reinforcing member 226 is arranged in the lower opening 223d, and the second reinforcing member 225 and the third reinforcing member 226 are It is connected by a connecting means.

The lower surface of the third reinforcing member 226 arranged in the lower opening 223d is located above the lower ends of the indoor side wall portion 223b and the outdoor wall portion 223c of the second reinforcing core material 223, and the lower end of the lower stile 22 is located. It is a recess that opens downward.
Heat expansion materials f222 and f222 are provided on the lower end indoor side surface of the indoor side wall portion 223b of the second reinforcing core material 223 forming the recess and the lower end indoor side surface of the outdoor side wall portion 223c, respectively, and the second reinforcing core material 223 is provided. A heating expansion material f223 is provided on the lower surface of the third reinforcing member 226 arranged in the lower opening 223d of the above.

Then, in the event of a fire, as shown in FIG. 5B, the heat expansion materials f12 and f12 arranged between the building opening and the lower frame 12 expand, so that the building opening and the lower rail member 122 It is possible to close the space and prevent the fire from spreading on the opening side of the building.
Further, the heat expansion material f222 and f222 arranged on the indoor side wall portion 223b and the outdoor wall portion 223c of the second reinforcing core material 223 of the lower stile 22 and the heat expansion material f223 arranged on the lower surface of the third reinforcing member 226 The expansion direction is restricted by the indoor side wall portion 223b and the outdoor wall portion 223c, and the expansion is directed toward the lower frame 12.
Therefore, the heat expansion material f12 arranged in the lower frame 12 and the heat expansion materials f222 and f223 arranged in the recesses of the lower stile 22 are the building opening, the lower rail member 122 made of a metal material, and the second reinforcing core material 223. It can be expanded as a unit so as to wrap around the lower frame 12 and the space between the lower frame 12 and the internal sash 20 can be closed.

Further, the heat expansion material f221 arranged on the inner circumference of the reinforcing member 227 in the panel frontage portion 221a of the lower stile 22 integrally covers the reinforcing member 227 and the panel body 25 having fire resistance by expanding. It is possible to suppress indoor / outdoor communication in the lower stile 22 of the internal shoji 20.

Next, regarding the fire protection structure between the left and right vertical frames 13, 14 and the inside, the left of the outer sash 20 and 30, and the right stiles 23, 24, 33, 34, the right of the right vertical frame 14 and the inner sash 20. This will be described with reference to the configuration of the stile 24.

As shown in FIG. 6A, the right vertical frame 14 constituting the frame body 10 is made of a resin material, and has a substantially flat plate-shaped right vertical frame main body portion 141a and a right vertical frame main body portion 141a substantially in the center of the prospective direction. The central wall portion 141b projecting from the position in the inner peripheral direction, the indoor side wall portion 141c projecting from the indoor side end of the right vertical frame main body portion 141a in the inner peripheral direction, and the outdoor side of the right vertical frame main body portion 141a. It has an outdoor wall portion 141d projecting from the end in the inner peripheral direction.

The right vertical frame main body portion 141a has a plurality of ribs on the outer peripheral surface along the longitudinal direction, and is attached to the opening of the building at a predetermined interval. The heat expansion members f141 and f141 are arranged on the indoor side and the outdoor side of the outer peripheral surface of the right vertical frame 14 over substantially the entire length in the longitudinal direction of the right vertical frame 14.
Sealed portions 141f and 141g that come into contact with the building opening when the right vertical frame 14 is attached to the building opening are provided at both ends of the right vertical frame main body portion 141a in the prospective direction, and the building opening and the upper frame are provided. It protects the heat expansion materials f141 and f141 arranged between the 11 and 11.

The reinforcing member 142 arranged on the inner peripheral surface of the right vertical frame 14 has a prospective surface 142a arranged on the inner peripheral surface of the right vertical frame main body portion 141a and a finding surface 142b arranged on the indoor side surface of the central wall portion 141b. It has a substantially L-shaped cross section. The reinforcing member 142 is a portion of the finding surface 142b from the prospective surface 142a of the reinforcing member 142 on the indoor side, that is, a portion where the corner portions of the door tip surface and the outdoor side surface of the door tip stile 24 are close to each other when the internal sash 20 is closed. The heat expansion materials f142 and f143 are arranged over substantially the entire length in the longitudinal direction.

On the other hand, the right stile 24 of the internal shoji 20 has an inner panel frontage wall 241c on the indoor side on the inner peripheral side of the right stile main body 241b and an outer panel frontage wall 241d on the outdoor side. The panel frontage portion 241a is formed by the panel frontage walls 241c and 241d.

A reinforcing member 243 is arranged on the panel frontage portion 241a, and a flame-retardant glazing channel 249 is arranged on the inner circumference of the reinforcing member 243. A heat expansion material f241 is provided between the reinforcing member 243 and the glazing channel 249.

A reinforcing member 242 is arranged in the hollow portion of the right stile main body portion 241b.
The reinforcing member 242 has an inner peripheral side prospective wall 242a, an indoor side finding wall 242b, and an outdoor side finding wall 242c, and is formed of a member having a substantially U-shaped cross section that opens in the outer peripheral direction. Heat expansion materials f242, f243, and f244 are arranged on the outer peripheral surface of the peripheral side prospective wall 242a, the outdoor side surface of the indoor side finding wall 242b, and the indoor side surface of the outdoor side finding wall 242c, respectively.
Further, a heat expansion material f245, 245 is arranged between the inner peripheral surface of the inner peripheral side prospective wall 242a of the reinforcing member 242 and the right vertical frame main body 241.

Then, in the event of a fire, as shown in FIG. 6B, the heat expansion materials f141 and f141 arranged between the building opening and the right vertical frame 14 and the reinforcement fixed to the inner circumference of the right vertical frame 14 The heat expansion materials f142 and f143 provided on the prospective surface 142a and the finding surface 142b of the member 142 expand, and the heat expansion materials f242, f243 and f244 arranged on the inner circumference of the reinforcing member 242 of the right stile 24 expand. do.
At this time, the heating expansion material f242, f243, and f244 arranged on the inner circumference of the reinforcing member 242 are restricted in the direction of expansion by the indoor side finding wall 242b and the outdoor side finding wall 242c of the reinforcing member 242 opening on the outer periphery. It is expanded toward the right vertical frame 14.
Therefore, the heat expansion materials f242, f243, and f244 arranged on the reinforcing member 242 of the right stile 24 and the heat expansion materials f141, f142, and f143 arranged on the right vertical frame 14 are integrated into the building opening. It can be expanded so as to wrap the reinforcing member 142 made of a metal material and the reinforcing member 242 of the right vertical frame 24 to close the space between the right vertical frame 14 and the internal sash 20.

Further, the heat expansion material f241 arranged on the inner circumference of the reinforcing member 243 in the panel frontage portion 241a of the right stile 24 integrally covers the reinforcing member 243 and the panel body 25 having fire resistance by expanding. It is possible to suppress indoor / outdoor communication in the right stile 24 of the internal shoji 20.

Further, in the sash of the present embodiment, in addition to the heat expansion material arranged between the frame and the sash window, the four corner portions A to D of the sash shown in FIG. 1, and the inner and outer sash windows are used. It has a structure to improve the fire prevention performance in the upper and lower parts E and F of the joint. Hereinafter, a detailed description will be given with reference to FIG. 7.
The four corners A and B of the upper frame, the four corners C and D of the lower frame, and the upper E of the mating portion of the upper frame and the upper F of the mating portion of the lower frame have substantially the same configuration. Here, the upper frame 11 will be used, and the description of the lower frame will be omitted.

As shown in FIG. 7, the upper frame 11 of the sash includes an upper frame main body 111 made of a resin material and an upper rail member 112 arranged in the central portion in the prospective direction of the upper frame main body 111, and has left and right vertical columns. It is arranged between the frames 13 and 14.
The upper rail member 112 has an upper inner rail 112b and an upper outer rail 112c, and is located between the upper inner rail 112b and the upper outer rail 112c and is located substantially at the center of the upper rail member 112 in the finding direction, that is, inside. A windbreak member 71 is arranged at the upper position of the combined portion of the outer rails 20 and 30.

The windbreak member 71 is made of an elastic soft resin member or the like, and is vertically installed below the flat surface-viewing rectangular plate-shaped fixing plate portion 711 fixed to the upper rail member 112 and the lower surface of the fixing plate portion 711. It has a windbreak fin portion 712. The wind-stopping fin portion 712 of the sash of the present embodiment is formed by arranging a set of three fin portions arranged in the prospective direction in three rows in the finding direction. The configuration of the windbreak member 71 is not particularly limited.
The heat expansion material f112 is arranged on both sides and between the three rows of windbreak fin portions 712,712,712 on the lower surface of the fixing plate portion 711 of the windbreak member 71.
Therefore, at the upper position of the merging portion of the inner and outer sashes 20 and 30, in the event of a fire, the heat expansion material f112 arranged on the windbreak member 71 is inside and the upper part of the merging stiles 23 and 34 of the outer sashes 20 and 30. A combination portion of a heating and expanding material that expands at a position and closes between the upper frame 11 and the upper stile 21 of the inner sash 20 and a heating and expanding material that closes between the upper frame 11 and the upper stile 31 of the outer sash 30. Can be continuous at the top of.

Further, on the outdoor side of the central wall portion 131b of the left vertical frame 13 of the sash, a heating expansion material f132 that expands toward the door tip surface of the door tip stile 33 of the outer sash 30 when the outer sash windows 20 and 30 are closed. A heating expansion material f133 that expands toward the indoor side surface of the door end stile 33 is arranged, and on the indoor side of the central wall portion 141b of the right vertical frame 14 of the sash, when the inner and outer shoji screens 20 and 30 are closed. A heat-expanding material f142 that expands toward the door-end surface of the door-end stile 24 of the shoji sash 20 and a heat-expanding material f143 that expands toward the outdoor surface of the door-end stile 33 are arranged.
Then, between the upper inner rail 112b and the upper outer rail 112c of the upper frame 11, the position near the left vertical frame 13 and the position near the right vertical frame 14, that is, the door end stile 24 of the inner shoji 20 and the outer shoji 30. Two heat-expanding materials f113 and f113 arranged in the prospective direction are arranged at the upper positions of, 33.
Therefore, in the event of a fire, the heating expansion materials f113 and f113 arranged at the upper corner of the upper frame 11 on the door end side expand, and the left and right vertical frames 13 and 14 are left and the inner circumferences of the right vertical frame main bodies 131a and 141a. F132, f133, f142, f143, which are arranged on the intermediate wall portions 131b and 141b and close between the door tip stiles 24 and 3 of the inner and outer sashes 20 and 30 and the left and right vertical frames 14 and 13. And, the heat expansion materials f213 and f313 that close the space between the upper frame 11 and the inner and upper stiles 21 and 31 of the outer sashes 20 and 30 can be continuously provided at the upper corner portion of the frame body 10.

Further, the sash of the present embodiment has a structure for improving the fire prevention performance on the inner and outer sashes themselves. Hereinafter, description will be made with reference to FIGS. 8 to 11. Since the fire protection structure of the internal sash 20 and the external sash 30 is the same, the following description will be described using the internal sash 20.
As shown in FIG. 8, the sash inner sash window 20 of the present embodiment has a fixing means such as a screw or the like by abutting the end faces of the upper stile 21 and the lower stile 22 against the inner peripheral surfaces of the left and right vertical stiles 23 and 24. It is assembled in four laps by fixing it with.
End caps 81 made of resin material are attached to the upper and lower ends of the left and right stiles 23 and 24, and the upper and lower stiles 21 and 22 of the left and right stiles 23 and 24 are in contact with each other. , The corner block 82 is arranged adjacent to the end cap 81.

The configuration of the corner portion of the internal shoji 20 will be described in more detail by using the connecting portion between the lower stile 22 and the right stile 24.
As shown in FIG. 9A, an end cap 81 is attached to the lower end of the right stile 24, and the right stile 24 with which the end of the lower stile 22 abuts above the end cap 81. A corner block 82 is arranged in the panel frontage portion 241a so as to fill the space of the panel frontage portion 241a.

Here, the end cap 81 and the corner block 82 are shown in FIG.
The end cap 81 is made of, for example, a resin material, and as shown in FIGS. 11 (c), 11 (d), and (e), the block-shaped insertion portion 81a and the lid portion 81b formed on the lower surface of the insertion portion 81a. And has a flange portion 81c formed on the door end side of the insertion portion 81a.
The insertion portion 81a is provided with a plurality of rib portions 81d, and by being inserted into the lower end of the right stile 24, the end cap 81 can be firmly attached to the lower end of the right stile 24. With the insertion portion 81a inserted into the lower end of the right stile 24, the lid portion 81b covers the lower end surface of the right stile 24, and the flange portion 81c is exposed at the lower end of the right stile 24 on the door end side.

On the other hand, the corner block 82 is made of a metal material such as an aluminum alloy, and is a cube-shaped block member that is long in the vertical direction as a whole, as shown in FIGS. 11 (a) and 11 (b). The corner block 82 has a cross-sectional dimension that fits in the panel frontage portion 241a of the right stile 24 (about the same as the reinforcing member 243 that fits in the panel frontage portion 241a), and is used for fixing means such as a plurality of screws in the vertical direction. Hole 82a is formed.

As shown in FIGS. 9 (b) and 9 (c), the corner block 82 arranged in the panel frontage portion 241a has a contact surface on which the anti-door end side surface 82c abuts on the lower stile 22 of the right stile 24. It becomes almost flush with 241s, and the right end of the lower stile 22 is brought into contact with the contact surface 241s of the right stile 24 and the counter-door end side surface 82c of the corner block 82, and is fixed by a fixing means b such as a screw. , The right stile 24 and the lower stile 22 can be connected.

When the lower stile 22 is connected to the right stile 24, as shown in FIG. 10, the upper surface 82b of the corner block 82 is the upper surface of the bottom wall of the reinforcing member 227 arranged in the panel frontage portion 221a of the lower stile 22. It becomes almost flush with.
Therefore, as shown in FIGS. 10B and 10C, the heat expansion material f221 arranged on the bottom wall of the reinforcing member 227 can be arranged up to the upper surface 82b of the corner block 82, and the right stile 24 can be arranged. It can be brought close to the heat expansion material f241 arranged on the bottom wall of the reinforcing member 243 arranged in the panel frontage portion 241a at the corner portion.

As described above, the frame body 10 of the sash according to the present embodiment is a rail member or a reinforcing member made of a metal material on the inner circumferences of the upper frame 11, the lower frame 12 and the left and right vertical frames 13 and 14 made of a resin material. Is arranged to form a frame body, and the frame body 10 is fixed to the building opening with a heating expansion material interposed between the frame body 10 and the building opening.
Therefore, in the event of a fire, the heat expansion materials f11 and f12 interposed between the building opening and the building opening expand, and the frame 10 is deformed and melted by the heat of the fire, and the space between the building opening and the frame 10 is generated. While closing the gap, it is possible to protect the skeleton at the opening of the building and prevent the spread of fire.

The heating expansion materials f11 and f12 arranged between the frame body 10 and the opening of the building are arranged in two rows on the outdoor side and the indoor side over the entire length of the frame body 10 in the finding direction to form a sash room. It can be expanded quickly against both inner and outdoor fires, and by arranging the heat expansion material f on the entire surface of the frame 10, it is possible to prevent deformation of the frame 10 due to excessive expansion. can.

Further, the inner and outer sashes 20 and 30 have a reinforcing core material or a reinforcing member made of a metal material inside the upper stile main body and the lower stile main body and the left and right vertical stile main bodies made of a resin material. And the reinforcing members are connected to each other by a connecting means, and a heating expansion material is arranged at an appropriate portion of the reinforcing core material and the reinforcing member.
In particular, a reinforcing member having a substantially U-shaped cross section that opens toward the outer peripheral side is arranged on the vertical frame main body of the door tip frame facing the vertical frame, and heat expansion is performed on three surfaces of the inner peripheral surface of the reinforcing member. The materials are arranged.
Therefore, the heat-expanding material expands at an early stage in response to a fire from either the indoor side or the outdoor side, and the heat-expanding material expanded at the inner circumference of the reinforcing member expands toward the outer peripheral side, that is, toward the frame. Therefore, even if the door-end stile body made of the resin material melts and disappears due to the expansion together with the heat-expanding material arranged between the frame body 10 and the building opening, it is still between the shoji and the frame body. Can be reliably sealed.

The sash of the present embodiment can be used alone as a sash arranged in the building opening, but as an indoor sash arranged on the indoor side of the building opening in which the existing sash is arranged on the outdoor side. It can also be used.
Further, in the present invention, the configurations of the internal and external shoji are not limited to the above-described embodiment, and any shoji can be used as long as the gist of the present invention is not changed.
Further, the cross-sectional shape of the reinforcing material for reinforcing the stile material of the shoji is not limited to the cross-sectional shape shown in the embodiment, and the position of the heat-expanding material arranged on the reinforcing material is not limited. For example, when the reinforcing member arranged in the vertical frame has a hollow structure, the heat expansion material may be provided on a surface (outer peripheral surface) facing the frame.
Further, the reinforcing member arranged in the panel frontage portion of the stile material constituting the shoji is preferably formed as a long member extending in the finding direction, but is formed in a piece shape and has a plurality of positions in the stile material finding direction. It may be arranged in.

10: Frame body 11: Upper frame 12: Lower frame 13: Left vertical frame 14: Right vertical frame 20: Internal shoji 21: Upper stile 22: Lower stile 23: Right stile 24: Right stile 25: Panel body 30: External shoji 31: Upper stile 32: Lower stile 33: Left stile 34: Right stile 35: Panel body 71: Wind blocking member 72: Wind blocking member

Claims (1)

It is equipped with a resin frame fixed to the inner peripheral surface of the opening , and internal and external shoji .
A heating and expanding material that expands by heating along the longitudinal direction is attached to the indoor side and the outdoor side of the outer peripheral surface of the frame.
The heat expansion material is sandwiched between the outer peripheral surface of the frame and the inner peripheral surface of the opening , and the internal sash is arranged on the indoor side of the frame and the external sash is arranged on the outdoor side of the frame . A sash that features that.

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