JP2020169477A - sash - Google Patents

Abstract

To provide a sash having a component made of resin material, with high fireproof performance imparted while keeping thermal insulation performance.SOLUTION: A sash comprises a resin upper frame disposed in a building opening, an upper rail member made of metal material, and a thermal expansion refractory material disposed between the inner peripheral surface of the resin upper frame and the upper rail member along the longer direction of the upper rail member.SELECTED DRAWING: Figure 6

Description

Regarding sashes placed in openings of buildings, etc.

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 sash shown in Patent Document 1 can have high heat insulating properties by taking advantage of the characteristics of the resin material, and also has a certain degree of fire prevention performance.
However, in recent years, even higher fire protection performance has been required for heat insulating sashes having a portion made of a resin material.

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 includes a resin upper frame arranged at the opening of the building and an upper rail member made of a metal material, and is provided between the inner peripheral surface of the resin upper frame and the upper rail member along the longitudinal direction of the upper rail member. A sash provided with a thermal expansion refractory material.

According to this embodiment, it is possible to impart high fire protection 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 one Embodiment. It is a vertical sectional view in the mounted state of the sash which concerns on one Embodiment. It is sectional drawing in the mounted state of the sash which concerns on one Embodiment. It is a vertical sectional view of the sash which concerns on one Embodiment. It is sectional drawing of the sash which concerns on one Embodiment. It is an enlarged view of the upper frame of the sash which concerns on one Embodiment, (a) is an exploded view, and (b) is a figure after construction. It is an enlarged view of the upper frame of the sash which concerns on one Embodiment, and is the figure at the time of a fire.

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 of the present embodiment is configured as an inner window A arranged on the indoor side of the window device B arranged at the opening of the building, and is formed on the frame body 10 and the frame body 10. It includes an inner sash 20 and an outer sash 30 that are slidably arranged with respect to the other.

The frame body 10 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, lower frame 12, and left and right vertical frames are not framed. 13 and 14 are fixed to the inner peripheral surface of the building opening by fixing means such as screws, so that the frame body 10 covering the four circumferences of the building opening is formed.

The internal shoji 20 is formed by assembling an upper stile 21, a lower stile 22, a left stile (combination stile) 23, and a right stile (door end stile) 24 in four circumferences, and attaching a panel body 25 to the inner circumference thereof. The outer sash 30 has an upper stile 31, a lower stile 32, a left stile (door tip stile) 33, and a right stile (combination stile) 34 assembled in four circumferences, and a panel body 35 is attached to the inner circumference thereof. Is formed.

Then, as shown in FIGS. 2 and 3, the inner window A of the present embodiment is arranged on the indoor side of the fitting B previously arranged in the opening of the building, for example, is fixed to the inner circumference of the forehead portion C. As a result, a double sash can be formed and the heat insulating performance at the opening of the building can be improved. The fitting B arranged at the opening of the building may be any fitting, and the description thereof will be omitted here.

(Structure of frame)
As shown in FIG. 4, the upper frame 11 of the frame body 10 has a substantially flat 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 forehead portion C of the building opening by a fixing means b such as a screw. It is fixed to the inner peripheral surface (lower surface) of.

The upper frame main body 111 has an upper frame fixing portion 111a fixed to the forehead portion C and an indoor side wall portion 111b hanging from the indoor side end of the upper frame fixing portion 111a.

The upper rail member 112 includes an upper rail fixing portion 112a fixed to the forehead portion C together with the upper frame main body 111, an upper inner rail 112b vertically installed 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 hung below the outdoor side of the 112a.

A windbreak member having a fin-shaped windbreak portion between the upper inner rail 112b and the upper outer rail 112c of the upper frame 11 and above the sashes 23 and 34 of the inner sash 20 and the outer sash 30. 71 is arranged.
Further, between the upper inner rail 112b and the upper outer rail 112c of the upper frame 11, an ascending stopper 81 that suppresses thermal elongation of the inner and outer sashes 20 and 30 in the event of a fire is provided at an upper position near both ends in the finding direction. Have been placed.

As shown in FIG. 4, the lower frame 12 of the frame body 10 has a substantially flat 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 forehead portion C of the building opening by a fixing means b such as a screw. It is fixed to the inner peripheral surface (upper surface) of.

The lower frame main body 121 has a lower frame fixing 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 fixing portion 121a.

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

As shown in FIG. 5, the left and right vertical frames 13 and 14 of the frame body 10 are formed in a substantially flat plate shape, and the inner circumference of the forehead portion C 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 fixing portions 131a and 141a and the left and right vertical frame fixing portions 131a and 141a from substantially the center position in the prospective direction to the inner peripheral direction. Central wall portions 131b, 141b to be projected, indoor side wall portions 131c, 141c projecting from the indoor side ends of the left and right vertical frame fixing portions 131a, 141a in the inner peripheral direction, and left and right vertical frame fixing portions 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 s 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 shoji 20 and the right vertical frame 14 are airtight, and the outer shoji 30 and the left vertical frame 13 are airtight.

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 fixing portion 131a and on the outdoor side of the central wall portion 131b, and the right vertical frame 14 is fixed to the right vertical frame. 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 member 132 of the left vertical frame 13 is made of a metal material such as aluminum alloy or steel, and has a found wall along the outdoor side surface of the central wall portion 131b and a prospective wall along the inner peripheral surface of the left vertical frame fixing portion 131a. It is a long member having a substantially L-shaped cross section, and is arranged over the entire length of the left vertical frame 13.
The reinforcing member 142 of the right vertical frame 14 is made of a metal material such as aluminum alloy or steel, and has a found wall along the indoor side surface of the central wall portion 141b and a prospective wall along the inner peripheral surface of the right vertical frame fixing portion 141a. It is a long member having a substantially L-shaped cross section, and is arranged over the entire length of the right vertical frame 14.

Then, a thermal expansion refractory material f is arranged on the outdoor side surface of the finding wall of the reinforcing member 132 of the left vertical frame 13 so as to face the indoor side surface of the door tip portion of the door tip frame 33 of the shoji screen 30. A thermal expansion refractory material f is arranged on the indoor side surface of the finding wall of the reinforcing member 142 of the right vertical frame 14 so as to face the outdoor side surface of the door tip portion of the door tip frame 24 of the shoji sash 20.

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 fixing portions 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.

When fixing the frame body 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 opening of the building.
At this time, 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) at the four corners of the building opening. The upper frame 11, the lower frame 12, and the left and right vertical frames 13 and 14 interfere with each other at the time of mounting by cutting out a part of the central wall portions 131b and 141b of the (left vertical frame 13, right vertical frame 14). Can be prevented.

(Composition of shoji)
As shown in FIG. 4, 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.

The upper stile main body 211 has a glass frontage 211a for holding the panel body 25 and an opening 211b formed on the outer peripheral side of the glass frontage 211a and guided by the upper inner rail 112b, and constitutes the interior of the opening 211b. An airtight piece is provided at the upper end of the outer wall so as to contact or approach the upper inner rail 112b.

In the upper stile 21 of the inner sash 20, a frontage reinforcing member 213 made of a metal material such as steel is arranged in the glass frontage 211a, and the panel body 25 provides the frontage reinforcing member 213 and the flame-retardant glazing channel 219. It is held by the glass frontage 211a via the glass frontage 211a.
The upper stile 21 of the inner sash 20 has a reinforcing core material 212 arranged in the opening 211b, and the reinforcing core material 212 is arranged in the opening 211b and functions as an opening reinforcing member for reinforcing the opening. ing.

A reinforcing member 214 made of a metal material such as stainless steel is arranged inside the reinforcing core member 212, and the reinforcing member 214 functions as an opening reinforcing member for reinforcing the opening.
The reinforcing core member 212 and the reinforcing member 214 arranged in the opening 211b and the frontage reinforcing member 213 arranged in the glass frontage 211a are connected by connecting means with the bottom wall of the opening 211b of the upper frame main body 211 sandwiched between them. Has been done.

The frontage reinforcing member 213 arranged in the glass frontage 211a has a substantially U-shaped cross section having a bottom wall facing the end surface of the panel body 25 and an indoor / outer wall facing the indoor / outer surface of the edge of the panel body 25. A thermal expansion refractory material is attached to the inner and outer surfaces of the indoor and outer walls.

The reinforcing core material 212 arranged in the opening 211b is a bottom wall portion 212a arranged along the bottom of the opening 211b and an indoor wall of the opening 211b continuous with the indoor end of the bottom wall portion 212a. It has an indoor wall portion 212b extending along the outer wall and an outdoor wall portion 212c extending along the outer wall of the opening 211b continuously with the outdoor end of the bottom wall 212a.

The thermal expansion refractory material is arranged on the lower surface of the bottom wall portion 212a of the reinforcing core material 212, and the thermal expansion refractory material is arranged on the inner peripheral side surface near the upper end of the indoor wall portion 212b and the outdoor wall portion 212c.
A thermal expansion refractory material is arranged on the inner bottom surface of the reinforcing member 214 arranged inside the reinforcing core material 212.

As shown in FIG. 4, the lower stile 22 of the inner sash 20 has a lower stile main body 221 made of a resin material, a first reinforcing core material 222 made of a metal material such as an aluminum alloy, and a first reinforcing core material 222 arranged in the lower stile main body 221. It has a second reinforcing core material 223.

The lower stile main body 221 has a glass frontage 221a on the inner peripheral side, a hollow portion 221b arranged on the outer periphery of the glass frontage 221a, and an opening 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.

In the hollow portion of the first reinforcing core material 222, a first reinforcing member 224 having a substantially U-shaped cross section made of steel or the like is arranged so as to open in the outer peripheral direction, and inside the hollow portion and the opening of the second reinforcing core material 223. The second reinforcing member 225 and the third reinforcing member 226, each having a substantially U-shaped cross section, are arranged so as to open in the indoor direction.

The inside of the glass frontage 221a is made of a metal material such as steel and has a bottom wall facing the end surface of the panel body 25 and an indoor / outer wall facing the indoor / outer surface of the edge of the panel body 25. The frontage reinforcing member 227 is arranged, and the panel body 25 is held by the glass frontage 221a via the frontage reinforcing member 227 and the flame-retardant glazing channel 229.
The frontage 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 glass frontage 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 sandwiched between them, and the second reinforcing member 225. And the third reinforcing member 226 are connected by connecting means with an intermediate wall 223a of the second reinforcing core member 223 sandwiched between them.
A wheel 92 running on the lower inner rail 122b is arranged at a predetermined position of the opening 221c of the lower stile main body 221 and the inner shoji 20 is arranged so as to be able to run on the lower inner rail 122b.

As shown in FIG. 5, the right stile (door tip stile) 24 of the internal shoji 20 is formed on the inner peripheral side of the right stile main body 241b having a hollow portion having a substantially rectangular cross section and the right stile main body 241b. It has a glass frontage 241a for holding the panel body 25.

Inside the hollow portion of the right stile main body 241b, a first reinforcing member (opening reinforcement) having a substantially U-shaped cross section, which is made of a metal material such as steel and has a prospect wall, an indoor side finding wall, and an outdoor side finding wall. The member) 242 is arranged so as to open toward the outer peripheral side.
Thermal expansion refractory material f is arranged on the inner side surface of the prospective wall of the first reinforcing member 242, the outdoor side surface (inner side surface) of the indoor side finding wall, and the indoor side surface (inner side surface) of the outdoor side finding wall, respectively. There is.
Further, a thermal expansion refractory material f is arranged between the side surface of the glass frontage of the prospective wall of the first reinforcing member 242 and the right vertical frame main body 241.

Inside the glass frontage 241a, a frontage having a substantially U-shaped cross section having a bottom wall made of a metal material such as steel and facing the end surface of the panel body 25 and an indoor / outer wall facing the indoor / outer surface of the edge of the panel body 25. A reinforcing member 243 is arranged, and the panel body 25 is held by the glass frontage 241a via the frontage reinforcing member 243 and the flame-retardant glazing channel 249.

The first reinforcing member 242 and the frontage reinforcing member 243 are connected by 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-section.

The left stile (combination stile) 23 of the inner sash 20 is made of a resin material, and as shown in FIG. It has a glass frontage 231a to be formed, and an airtight piece 231c is formed in which the outer peripheral side surface extends to the outdoor side and comes into contact with or is close to the sash 34 of the outer sash.
Further, a fire prevention crescent lock 61 is attached to the outer peripheral surface of the left stile 23.

Inside the hollow portion of the left stile main body 231b, there is a prospective surface portion made of a metal material such as steel and along the bottom wall of the glass frontage 231a, a finding surface portion along the outdoor surface of the left stile main body portion 231b, and a prospective surface portion on the outer peripheral side. It has the first reinforcing member 232 which has.

On the other hand, inside the glass frontage 231a, a frontage reinforcing member 234 having a substantially U-shaped cross section having a bottom wall facing the end surface of the panel body 25 and an indoor / outer wall facing the indoor / outer surface of the edge of the panel body 25 is inside. It is arranged so as to open toward the peripheral side, and a thermal expansion refractory material f is arranged on the indoor and outer walls of the frontage reinforcing member 234. The panel body 25 is held by the glass frontage 231a via the frontage reinforcing member 234 and the flame-retardant glazing channel 239.

The first reinforcing member 232 and the frontage reinforcing member 234 are connected by a connecting means with a wall on the inner peripheral side of the glass frontage 231a and a thermal expansion refractory material f sandwiched between them. Further, a thermal expansion refractory material f is arranged at an appropriate portion of the first reinforcing member 232.
The panel body 25 used for the shoji 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. However, 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 glass frontage 341a to be formed, and an airtight piece 341c is formed in which the outer peripheral side surface extends inward to the inside of the room and comes into contact with or is close to the sash 23 of the sash 20.
In addition, a fire prevention crescent receiver 62 is provided on the indoor side surface of the right stile (combination stile) 34.

Inside the hollow part of the right stile body 341b of the right stile (combination stile) 34, there is a prospective surface part made of a metal material such as steel along the bottom wall of the glass frontage 341a and the interior side surface of the right stile body 341b. A first reinforcing member 342 having a finding surface portion along the line and a prospective surface portion on the outer peripheral side is arranged.

Inside the glass frontage 341a, a frontage reinforcing member 343 having a substantially U-shaped cross section having a bottom wall facing the end surface of the panel body 25 and an indoor / outer wall facing the indoor / outer surface of the edge of the panel body 25 is on the inner peripheral side. A heat-expanding refractory material is arranged on the indoor and outer walls of the frontage reinforcing member 343 so as to open toward. The panel body 35 is held by the glass frontage 341a via the frontage reinforcing member 343 and the flame-retardant glazing channel 349.

The first reinforcing member 342 and the frontage reinforcing member 343 are connected by connecting means with the inner peripheral side wall of the right stile main body 341b and the thermal expansion refractory material sandwiched between them. Further, a thermal expansion refractory material f that expands due to heating during a fire is arranged on the outdoor surface of the finding surface portion of the first reinforcing member 342.

As described above, the resin inner window of the present embodiment has fireproof performance, and further, the fireproof structure of the upper frame 11 portion of the resin inner window of the present embodiment will be described.

As shown in FIG. 6A, the upper frame 11 of the present embodiment includes an upper frame main body 111 made of a resin material and arranged in direct contact with the inner peripheral surface of the forehead C, and the upper frame main body 111. The upper rail member 112 made of a metal material arranged in contact with the peripheral surface is provided.

The upper frame main body 111 has a flat plate-shaped upper frame fixing portion 111a fixed to the forehead portion C, and an indoor side wall portion 111b hanging from the indoor side end of the upper frame fixing portion 111a.
The upper frame fixing portion 111a has a contact portion 111c that directly contacts the inner peripheral surface of the forehead portion C on the upper surface of the central portion in the prospective direction, and is bent from the indoor side of the contact portion 111c to the inner circumference in the prospective direction. It has an indoor side prospect portion 111d that later extends to the indoor side, and an outdoor side prospect portion 111e that bends from the outdoor side to the inner circumference of the contact portion 111c in the prospective direction and then extends to the outdoor side.

The upper frame main body 111 has rib portions 111f formed on the upper surface of the indoor side prospecting portion 111d at a predetermined distance from the bent portion, and a recess on the upper surface of the indoor side prospective portion 111d between the bent portion and the rib portion 111f. A thermal expansion refractory material f1 that expands by heating is arranged in. By providing the rib portion 111f on the indoor side prospect portion 111d, it is possible to reinforce the portion of the upper frame main body 111 where the indoor side wall portion 111b is provided.
Further, in the upper frame fixing portion 111a, the thermal expansion refractory material f2 is arranged on the outdoor upper surface of the bent portion on the upper surface of the outdoor side prospecting portion 111e.

The upper frame fixing portion 111a has a fin piece 111g extending upward at the upper indoor side end of the indoor side prospecting portion 111d, and has a fin piece 111h extending upward at the upper surface chamber outer end of the outdoor side prospecting portion 111e. , The space between the inner peripheral surface of the forehead (framework) C and the upper frame 11 is closed, and the thermal expansion refractory materials f1 and f2 are protected from the outside air and the like.

On the other hand, the upper rail member 112 includes an upper rail fixing portion 112a fixed to the inner peripheral surface of the upper frame fixing portion 111a, an upper inner rail 112b vertically installed below the indoor side of the upper rail fixing portion 112a, and an upper rail member 112. It has an upper and outer rail 112c that is vertically installed below the outdoor side of the rail fixing portion 112a.

In the upper rail member 112, two thermal expansion refractory materials f3 and f4 are arranged on the indoor side and the outdoor side of the upper surface of the upper rail fixing portion 112a over substantially the entire length in the length direction.

Then, in the upper frame 11, as shown in FIG. 6B, the upper rail fixing portion 112a of the upper rail member 112 is arranged on the lower surface of the abutting portion 111c of the upper frame main body 111 by a fixing means b such as a screw. By being fixed, it is fixed to the forehead portion C.

In the event of a fire, the upper frame 11 fixed to the forehead C is provided with thermal expansion refractory materials f3 and f4 arranged on the upper surface of the upper rail fixing portion 112a of the upper rail member 112 of the upper frame 11 as shown in FIG. By foaming, even when the upper frame main body 111 made of a resin material is melted, the gap generated between the forehead portion C and the upper rail member 112 can be closed.

Further, the thermal expansion refractory materials f1 and f2 arranged on the indoor side and the outdoor outer surface of the upper frame main body 111 of the upper frame 11 and provided on the indoor side and the outdoor side of the upper rail member 112 are foamed to be upper. The space between the upper rail member 112 and the forehead C can be closed on the indoor side and the outdoor side of the rail member 112, and the forehead C to which the upper rail member 112 is fixed by a fixing means such as a screw is protected from flames. Therefore, it is possible to prevent the upper rail member 112 from falling off due to the spread of fire in the forehead portion C.

As described above, in the resin inner window of the present embodiment, since the thermal expansion fireproof material is arranged on the upper surface of the upper rail member made of a metal material that guides the shoji, the upper rail member and the forehead, etc. It is possible to prevent the formation of a gap between them, and by protecting the fixed part where the upper rail member is fixed with a thermal expansion fireproof material, the fixed part of the upper rail member is burnt down and collapses. Can be suppressed.

Although the present embodiment is described as an inner window arranged on the indoor side of a building opening in which an existing sash is arranged on the outdoor side, it is adopted for a sash independently arranged in the building opening. You can also do it.

Further, in the present invention, the configurations of the internal and external shoji are not limited to the above embodiments, 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 member or the reinforcing core 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 thermal expansion refractory material arranged on the reinforcing member or the reinforcing core material is not limited. Is not limited.

It goes without saying that the above embodiments do not limit the invention described in the claims and are treated as examples.

10: Frame body 11: Upper frame 111: Upper frame main body 111a: Upper frame fixing portion 111b: Indoor side wall portion 111c: Contact portion 111d: Indoor side prospective portion 111e: Outdoor side prospective portion 111f: Rib portion 111g: Fillet piece 111h : Fillet piece 112: Upper rail member 112a: Upper rail fixing portion 112b: Upper inner rail 112c: Upper outer rail f1-f4: Thermal expansion refractory material

Claims (1)

Equipped with a resin upper frame placed at the opening of the building and an upper rail member made of metal material,
A sash in which a thermal expansion refractory material is provided between the inner peripheral surface of the resin upper frame and the upper rail member along the longitudinal direction of the upper rail member.

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