JP7208084B2 - sash - Google Patents

Description

The present invention relates to a sash arranged in an opening of a building or the like.

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

JP 2016-108909 A

The resin sash disclosed in Patent Literature 1 can have high heat insulating properties by taking advantage of the characteristics of the resin material, and has a certain degree of fire prevention performance.
However, in recent years, heat insulating sashes having parts made of resin materials are required to have even higher fireproof performance.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sash having high fireproof performance.

One embodiment is a sash that is assembled on all four sides with the end face of the other shape member in contact with the inner peripheral surface of one shape member, and a panel body is arranged on the inner periphery. A frontage reinforcing member for holding a glass is arranged at the glass frontage of the other shape, and the frontage reinforcing member arranged at the glass frontage of the other shape is longer than the other shape, It protrudes from the end of the other shape member, and when the one shape member and the other shape member are assembled around the four sides, the frontage reinforcing member of the other shape member is swallowed by the frontage reinforcing member of the one shape member. It is a sash that has

According to this embodiment, high fireproof performance can be imparted to a sash having a member made of a resin material.

It is an outline view of a sash concerning one embodiment. Fig. 4 is a vertical cross-sectional view of the sash according to one embodiment in an attached state; It is a cross-sectional view in the attachment state of the sash which concerns on one Embodiment. 1 is a vertical sectional view of a sash according to one embodiment; FIG. 1 is a cross-sectional view of a sash according to one embodiment; FIG. It is an enlarged view of the connection part of the upper stile and vertical stile of the sash of the sash according to one embodiment, (a) is an exploded cross-sectional view at normal time, (b) is a cross-sectional view at normal time and (c) is a front view. It is an enlarged view of the connection part of the upper stile and vertical stile of the shoji of the sash which concerns on one Embodiment, (a) (b) is a front view at the time of a fire.

A sash according to an embodiment of the present invention will be described with reference to the drawings.
The sash of this embodiment, as shown in FIG. It has an inner shoji 20 and an outer shoji 30 which are slidably arranged relative to each other.

The frame body 10 has an upper frame 11, a lower frame 12 and left and right vertical frames 13 and 14, and each frame member is not framed, and the upper frame 11, the lower frame 12 and the left and right vertical frames are assembled. The frames 13 and 14 are fixed to the inner peripheral surface of the opening of the building by fixing means such as screws to form a frame 10 that extends around the opening of the building on all four sides.

The inner shoji 20 is formed by assembling an upper frame 21, a lower frame 22, a left vertical frame (suming frame) 23 and a right vertical frame (door frame) 24, and attaching a panel body 25 to the inner periphery thereof. The outer shoji 30 is composed of an upper frame 31, a lower frame 32, a left vertical frame (door frame) 33 and a right vertical frame (door frame) 34, and a panel body 35 is attached to the inner periphery thereof. formed by

2 and 3, the inner window A of the present embodiment is arranged on the indoor side of the fitting B that has been arranged in advance at the opening of the building, for example, it is fixed to the inner circumference of the forehead C. By doing so, it is possible to construct a double sash and improve the insulation performance at the opening of the building. The fittings B arranged at the opening of the building may be any fittings, and the description thereof is omitted here.

(Configuration of frame)
As shown in FIG. 4, the upper frame 11 of the frame body 10 has a substantially flat plate-like 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, with the upper rail member 112 arranged on the inner peripheral surface (lower surface) of the upper frame body 111, the upper frame body 111 and the upper rail member 112 are fixed to each other by fixing means b such as screws to the forehead portion C of the building opening. is fixed to the inner peripheral surface (lower surface) of the

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 down 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 provided below the upper rail fixing portion 112a, and an upper rail fixing portion. It has an upper and outer rail 112c vertically installed below the outdoor side of 112a.

A wind stop member having a fin-shaped wind stop part between the upper inner rail 112b and the upper outer rail 112c of the upper frame 11 and above the joint frame 23, 34 of the inner shoji 20 and the outer shoji 30. 71 are placed.
Also, between the upper inner rail 112b and the upper outer rail 112c of the upper frame 11, at upper positions in the vicinity of both ends in the viewing direction, there are up stop metal fittings 81 that suppress thermal expansion of the inner and outer shojis 20, 30 in the event of a fire. are placed.

As shown in FIG. 4, the lower frame 12 of the frame 10 has a substantially flat plate-like lower frame main body 121 made of resin material and a lower rail member 122 made of metal material such as aluminum alloy. Then, with the lower rail member 122 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 secured to the frame portion C of the building opening by fixing means b such as screws. is fixed to the inner peripheral surface (upper surface) of the

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 that is fixed to the forehead portion C together with the lower frame body 121, a lower inner rail 122b that stands above the lower rail fixing portion 122a, and the lower rail fixing portion 122a. It has a lower outer rail 122c erected upward from the outdoor side of the vehicle.
A wind stop member having a fin-shaped wind stop part between the lower inner rail 122b and the lower outer rail 122c of the lower frame 12 and below the joint frame 23, 34 of the inner shoji 20 and the outer shoji 30. 72 are arranged.

As shown in FIG. 5, the left and right vertical frames 13 and 14 of the frame 10 are formed in a substantially flat plate shape, and are fixed to the inner periphery of the frame portion C of the opening of the building by fixing means b, b such as screws. fixed to the surface.

The left and right vertical frames 13 and 14 are arranged in the inner peripheral direction from the left and right vertical frame fixing portions 131a and 141a fixed to the opening of the building and the left and right vertical frame fixing portions 131a and 141a from approximately the center position in the prospective direction. Center wall portions 131b and 141b protruding, indoor side wall portions 131c and 141c protruding in the inner peripheral direction from the room-side ends of the left and right vertical frame fixing portions 131a and 141a, and left and right vertical frame fixing portions. It has outdoor side wall portions 131d and 141d projecting in the inner circumferential direction from the outdoor side ends of 131a and 141a.

The central wall portions 131b and 141b have fin-like airtight pieces s extending to both the indoor and outdoor sides at their inner peripheral ends. When the inner shoji 20 or the outer shoji 30 is closed, the fin-shaped airtight pieces come into contact with the door frames 24 and 33 of the inner and outer shoji 20 and 30 to prevent the inner and outer shoji 20 and 30 from closing. 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. A reinforcing member 142 made of a metal material is provided on the inner peripheral surface of the portion 141a and on the interior 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 side wall along the outdoor side surface of the central wall portion 131b and a projection wall along the inner peripheral surface of the left vertical frame fixing portion 131a. It is an elongated 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 side wall along the interior side surface of the central wall portion 141b and a projection wall along the inner peripheral surface of the right vertical frame body portion 141a. It is an elongated member having a substantially L-shaped cross section and is arranged over the entire length of the right vertical frame 14 .

A thermal expansion refractory material f is arranged on the outdoor side of the facing wall of the reinforcing member 132 of the left vertical frame 13 so as to face the indoor side of the door tip of the door frame 33 of the outside shoji 30, A thermal expansion fireproof material f is arranged on the indoor side surface of the front wall of the reinforcing member 142 of the right vertical frame 14 so as to face the outdoor side surface of the door end portion of the door frame 24 of the inner shoji 20 .

The reinforcing members 132, 142 arranged on the left and right vertical frames 13, 14 are fixed together with the left and right vertical frame fixing portions 131a, 141a by the fixing means b, b for fixing the left and right vertical frames 13, 14 respectively. fixed in the opening.

When fixing the frame 10 of the sash of the present embodiment to the building opening, for example, the left vertical frame 13→lower frame 12→right vertical frame 14→upper frame 11 are arranged and fixed on the four sides of the building opening in this order. By doing so, the frame 10 can be arranged on the four sides of the opening of the building.
At this time, at the four corners of the building opening, at least a part of the upper inner rail 112b, the upper outer rail 112c and the lower inner rail 122b, the lower outer rail 122c of the horizontal frame (upper frame 11, lower frame 12), or the vertical frame The upper frame 11, the lower frame 12 and the left and right vertical frames 13 and 14 interfere with each other during installation by notching a part of the central wall portions 131b and 141b of (the left vertical frame 13 and the right vertical frame 14). can be prevented.

(Structure of inner shoji)
As shown in FIG. 4, the upper frame 21 of the inner shoji 20 has an upper frame main body 211 made of a resin material and a reinforcing core 212 made of a metal material such as an aluminum alloy.

The upper frame 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. An airtight piece is provided at the upper end of the outer wall to contact or be close to the upper inner rail 112b.

In the upper frame 21 of the inner shoji 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 includes the frontage reinforcing member 213 and the flame-retardant glazing channel 219. It is held in the frontage 211a of the glass via.
In the upper frame 21 of the inner shoji 20, a reinforcing core material 212 is arranged in the opening 211b, and the reinforcing core material 212 is arranged in the opening 211b and functions as an opening reinforcing member that reinforces 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 that reinforces 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 body 211 interposed therebetween. It is

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 and outdoor side surfaces of the edge portion of the panel body 25. Thermal expansion refractories are attached to the inner and outer surfaces of the interior and exterior walls.

The reinforcing core material 212 arranged in the opening 211b includes a bottom wall 212a arranged along the bottom of the opening 211b, and an indoor wall of the opening 211b continuing to the indoor-side end of the bottom wall 212a. and an interior wall portion 212c extending along the exterior wall of the opening 211b continuously from the exterior end portion of the bottom wall portion 212a.

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

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

The lower sill 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 member 222 has a hollow shape with a substantially rectangular cross section, and is arranged in the hollow portion 221 b of the lower rail main body 221 . The second reinforcing core member 223 has a cross-sectional shape with a rectangular hollow portion and an opening opening downward, and is arranged in the opening 221 c of the lower rail body 221 .

In the hollow portion of the first reinforcing core member 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. , a second reinforcing member 225 and a third reinforcing member 226 having a substantially U-shaped cross section are arranged so as to open toward the room.

The glass frontage 221a is made of a metal material such as steel, and has a substantially U-shaped cross section having a bottom wall facing the end face of the panel body 25 and an indoor outer wall facing the indoor and outdoor side surfaces of the edge of the panel body 25. A frontage reinforcing member 227 is arranged, and the panel body 25 is held in the glass frontage 221 a 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 connecting means across the bottom wall of the glass frontage 221a.

In addition, the first reinforcing core member 222, the second reinforcing core member 223, and the second reinforcing member 225 are connected by connecting means across the bottom wall of the hollow portion 221b of the lower rail main body 221. and the third reinforcing member 226 are connected by connecting means with the intermediate wall 223a of the second reinforcing core member 223 interposed therebetween.
At a predetermined position of the opening 221c of the lower stile body 221, wheels 92 are arranged to run on the lower inner rail 122b, and the inner shoji 20 is arranged so as to be able to travel on the lower inner rail 122b.

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

In the hollow portion of the right vertical stile main body portion 241b, a first reinforcing member (opening reinforcement) made of a metal material such as steel and having a substantially U-shaped cross section having a projection wall, an indoor side wall and an outdoor side wall is provided. member) 242 is arranged so as to open toward the outer peripheral side.
Thermal expansion refractory materials f are arranged on the inner surface of the projection wall of the first reinforcing member 242, the outdoor side (inner side) of the indoor side wall, and the indoor side (inner side) of the outdoor side wall. there is
A thermally expandable refractory material f is arranged between the glass frontage side surface of the projection wall of the first reinforcing member 242 and the right vertical frame main body 241 .

In the glass frontage 241a, a frontage having a substantially U-shaped cross section has a bottom wall that is made of a metal material such as steel and faces the end face of the panel body 25, and an interior wall that faces the interior and exterior sides of the edge of the panel body 25. A reinforcement member 243 is arranged, and the panel body 25 is held in the glass frontage 241 a via the frontage reinforcement 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 across the wall portion on the inner peripheral side of the right vertical frame body portion 241b.
Note that the first reinforcing member 242 arranged in the hollow portion of the right vertical frame main body portion 241b is not limited to the substantially U-shaped cross section, and may have, for example, a hollow structure having a substantially rectangular cross section.

The left vertical frame 23 of the inner shoji 20 is made of a resin material, and as shown in FIG. It has a formed glass frontage 231a, and an airtight piece 231c is formed on the outer peripheral side surface thereof so as to abut or approach the door frame 34 of the outside shoji 30. As shown in FIG.
A fire prevention crescent lock 61 is attached to the outer peripheral surface of the left vertical stile 23 .

In the hollow portion of the left vertical frame body portion 231b, there are a projection surface portion made of a metal material such as steel and along the bottom wall of the glass frontage 231a, a projection surface portion along the outdoor side surface of the left vertical frame body portion 231b, and a projection surface portion on the outer peripheral side. has a first reinforcing member 232 having a

On the other hand, inside the glass frontage 231a is a frontage reinforcing member 234 having a substantially U-shaped cross section, which has a bottom wall facing the end surface of the panel body 25 and an indoor outer wall facing the indoor and outdoor side surfaces of the edge portion of the panel body 25. The frontage reinforcing member 234 is arranged so as to open toward the circumference, and the thermal expansion fireproof material f is arranged on the inner wall of the frontage reinforcing member 234 . The panel body 25 is held in the glass frontage 231a via a frontage reinforcing member 234 and a flame-retardant glazing channel 239. As shown in FIG.

The first reinforcing member 232 and the frontage reinforcing member 234 are connected by connecting means with the wall on the inner peripheral side of the glass frontage 231a and the thermal expansion refractory material f interposed therebetween. Also, a thermally expandable fireproof material f is arranged at an appropriate portion of the first reinforcing member 232 .
The panel body 25 used for the inner shoji 20 is made of fire-resistant and heat-resistant glass, such as crystallized glass.

(Composition of outside shoji)
The outer shoji 30 will be described below, but since the outer shoji 30 and the inner shoji 20 basically have the same configuration in terms of the upper and lower frames and the door frame, the outer shoji 30 will be particularly described here. The interlocking frame 34 will be described, and the description of the configuration similar to that of the inner shoji 20 will be omitted.

The right vertical frame 34 of the outer shoji 30 is made of a resin material, and as shown in FIG. An airtight piece 341c is formed on the outer peripheral side surface to abut or approach the door frame 23 of the inner shoji 20. As shown in FIG.
A fire prevention crescent receiver 62 is provided on the indoor side surface of the right vertical frame (summer frame) 34 .

In the hollow part of the right vertical frame main body portion 341b of the right vertical frame (summing frame) 34, there are a projection surface portion along the bottom wall of the glass frontage 341a made of a metal material such as steel, and an indoor side surface of the right vertical frame main body portion 341b. A first reinforcing member 342 is arranged which has a viewing surface along the line and a viewing surface on the outer peripheral side.

In 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 and outdoor side surfaces of the edge portion of the panel body 25 is provided on the inner peripheral side. The frontage reinforcing member 343 is arranged so as to open toward , and a thermal expansion fireproof material is arranged on the inner wall of the frontage reinforcing member 343 . The panel body 35 is held in the glass frontage 341 a 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 wall of the right vertical frame body portion 341b and the thermal expansion fireproof material interposed therebetween. A thermally expandable refractory material f that expands when heated in the event of a fire is arranged on the exterior side of the facing surface of the first reinforcing member 342 .

As described above, the resin-internal window of the present embodiment has fireproof performance. Further, regarding the fireproof structure of the connecting portion of the stile member of the resin-internal window of the present embodiment, referring to FIGS. A connection portion between the door frame 24 and the upper frame 21 of the inner shoji 20 will be described.

In the inner shoji 20, the end surfaces of the upper and lower frames (horizontal members) 21 and 22 are in contact with the inner peripheral surfaces of the left and right vertical frames (vertical members) 23 and 24, and the outer peripheral sides of the left and right vertical frames 23 and 24. The horizontal frame is screwed and fixed by tapping screws or the like to form a four-circumference assembly.

As shown in FIGS. 6A and 6B, the right vertical frame 24 has projection surface portions 241e and 241f on the inner peripheral sides of an indoor frontage wall 241c and an outdoor frontage wall 241d that constitute the glass frontage 241a. The left and right end surfaces of the upper frame 21 are fixed to the projection surface portions 241e and 241f in a state of contact with screws.
Note that the grazing channel is omitted in FIG.

In the right vertical frame 24, the indoor end of the room-side projection surface portion 241e and the outdoor-side end of the outdoor-side projection surface portion 241f are bent inward to form projection wall portions 241g and 241h. Projections 241i and 241j are provided on the inner side surfaces of the frontage wall 241c and the outdoor frontage wall 241d.

The frontage reinforcing member 243 arranged at the glass frontage 241a of the right vertical frame 24 is opposed to the frontage reinforcing member 213 arranged at the glass frontage 211a of the upper frame 21 fixed with screws as shown in FIG. 6(c). , to a position facing the glass frontage 221a of the lower frame 22 fixed with screws.

The frontage reinforcing member 243 has a substantially U-shaped cross section consisting of a bottom wall portion 243a, an indoor side wall portion 243b, and an outdoor side wall portion 243c. , f1 are arranged.
The frontage reinforcing member 243 is held in the glass frontage 241a by protrusions 241i and 241j provided on the inner surfaces of the interior-side frontage wall 241c and the exterior-side frontage wall 241d of the right vertical frame 24 .
It should be noted that the projections 241i and 241j also prevent the glazing channel, which is not shown, from coming off the inside of the glass frontage 241a.

The abutting portions between the end surface of the door tip of the upper stile 21 and the projection surface portions 241e and 241f of the right vertical stile 24 are covered with the fitting wall portions 241g and 241h so as not to be exposed to the outside of the room. The portions 241g and 241h prevent the end face of the upper rail 21 from coming off the projection surface portions 241e and 241f.

The frontage reinforcing member 213 arranged in the glass frontage 211a of the upper frame 21 has a substantially U-shaped cross section consisting of a bottom wall portion 213a, an indoor side wall portion 213b, and an outdoor side wall portion 213c. A thermal expansion refractory material f2 is arranged.

The frontage reinforcing member 213 has a length dimension longer than that of the upper rail 21 and protrudes from the left and right end faces of the upper rail 21 .
By connecting the upper rail 21 to the right vertical rail 24, the frontage reinforcing member 213 enters the glass frontage 241a of the right vertical rail 24 and further extends between the indoor side wall portion 243b and the outdoor side wall portion 243c of the frontage reinforcing member 243. and reach the vicinity of the bottom wall portion 243a.
If necessary, the right vertical frame 24 may have projections 241i and 241j at positions where the frontage reinforcing member 213 of the upper frame 21 enters.

Therefore, the indoor side wall portion 213b and the outdoor side wall portion 213c of the frontage reinforcing member 213 arranged in the glass frontage 211a of the upper frame 21 are the same as the indoor side wall portion 243b of the frontage reinforcing member 243 arranged in the glass frontage 241a of the right vertical frame 24. , and overlaps with the exterior wall portion 243c in the projection direction, and the reinforcement member is arranged continuously around the four circumferences of the panel body 25. As shown in FIG.

The frontage reinforcing member 243 arranged at the glass frontage 241a of the right vertical frame 24 is arranged on the bottom wall portion 243a so as to face the glass frontage 211a of the upper frame 21 and the frontage reinforcing member 213 arranged at the glass frontage 211a. A thermal expansion refractory material f3 is arranged.

As described above, the in-resin window of the present embodiment has a frontage reinforcing member having a substantially U-shaped cross section disposed in the panel frontage of the horizontal frame, and both ends of the frontage reinforcing member protrude from the ends of the horizontal member. Since it overlaps the frontage reinforcing member with a substantially U-shaped cross section placed in the panel frontage of the vertical member in the prospective direction, the reinforcing member can be arranged without a break around the four perimeters of the stile member, and in the event of a fire It is possible to suppress the displacement of the reinforcement member of the vertical frame member and the reinforcement member of the horizontal frame member.

Furthermore, by arranging the thermal expansion refractory material f3 in the portion facing the frontage reinforcing member 213 of the upper stile 21 of the vertical stile 243, the upper stile is Thermal expansion refractory material f2 arranged on the bottom wall part 213a of the frontage reinforcing member 213 of the right vertical frame 24 and thermal expansion refractory material arranged inside the indoor side wall part 243b and the outdoor side wall part 243c of the frontage reinforcing member 243 of the right vertical frame 24 The gap A between the reinforcing member and the panel body, which cannot be sufficiently closed by foaming f1, f1, can be closed by foaming the thermal expansion fireproof material f3 arranged on the bottom wall portion 243a. The foamed region S2 of the thermally expandable fireproof material f2 of the frame 21 and the foamed region S1 of the thermally expandable fireproof material f1 of the right vertical frame 24 can be connected to form a fire prevention line without gaps over the four circumferences.

In addition, although this embodiment is described as an inner window placed on the indoor side of a building opening with an existing sash placed on the outdoor side, it is adopted for a sash placed alone on the building opening. You can also
Also, in the present embodiment, the sash assembled with the end face of the horizontal member in contact with the inner peripheral surface of the vertical member has been described as an example. It may be a sash to be assembled.

Furthermore, in the present invention, the configurations of the inner shoji and the outer shoji are not limited to the above embodiments, and any shoji can be used without changing the gist of the present invention.
In addition, the cross-sectional shape of the reinforcing member that reinforces the frame material of the shoji and the reinforcing core material is not limited to the cross-sectional shape shown in the embodiment. is also not limited.

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

21: Upper frame 211: Upper frame body 211a: Glass frontage 213: Frontage reinforcing member 213a: Bottom wall portion 213b: Indoor side wall portion 213c: Outdoor side wall portion 24: Right vertical frame 241: Right vertical frame body 241a: Glass frontage 243: Frontage reinforcing member 243a: Bottom wall portion 243b: Indoor side wall portion 243c: Outdoor side wall portions f1-f3: Thermal expansion fireproof material

Claims (1)

A sash in which the inner peripheral surface of one shape member is in contact with the end surface of the other shape member, and the panel body is arranged on the inner periphery,
A frontage reinforcing member for holding the glass is arranged at the glass frontage of one shape and the other shape,
The frontage reinforcing member arranged at the glass frontage of the other shape is longer than the length of the other shape and protrudes from the end of the other shape,
A sash in which a frontage reinforcing member of the other shape member is swallowed by the frontage reinforcing member of the one shape member when the one shape member and the other shape member are assembled around the four sides.

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