JP2016142012A - Multi-layered glass body and fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-layered glass having three or more layers that prevents circulation of flame and heat inside and outside of a building due to a partial damage of an intermediate layer of the glass or displacement of the multi-layered glass caused by thermal expansion of a heat foaming material.SOLUTION: A vertically projecting window includes a sash 8 fitted in a frame body 6. A triple-glazed multi-layered glass 13 fitted in a stile body 12 of the sash 8 includes an outdoor-side glass 30 reinforced by a wire net, an intermediate glass 31 with a smallest thickness, and an indoor-side glass 32, with a spacer 33 in between. Top and bottom edge parts of the multi-layered glass 13 is covered by a grating channel 35, and a support metal fitting 36b is provided on outside thereof, for fitting the multi-layered glass to a top rail 9 and a bottom rail. A first heat foaming material 38a is fixed on the support metal fitting 36b of the top rail 9 at a position opposite an edge part of the intermediate glass 31, and a second heat foaming material 39a at a position on the support metal fitting of the top rail opposite the outdoor-side glass 30. No heat foaming material is provided near the indoor-side glass 32.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a multi-layer glass body in which three or more layers of glass are arranged via a spacer, and a fitting including the multi-layer glass body.

  Conventionally, for example, the joinery described in Patent Document 1 is a reinforcing member provided on the outside of a pair of glass panes by providing an inter-panel sealing material and a spacer in the gap between the glass panes, covering the ends of the pair glass with a glazing channel. Is provided with a heating foam material over the entire width of the region facing the end of the pair glass. And the combustible gas which generate | occur | produces from the sealing material between panels in the case of a fire is made to seal between sheet glass by the thermal expansion of a heating foam material.

  Moreover, in the joinery described in patent document 2, it is equipped with the glazing channel provided in the glass groove | channel of the pair glass and the eaves or the frame, and the inner side surface of this glazing channel and the outdoor side finding surface of a multilayer glass Heated foam material is housed between them. In the event of a fire, the heated foam expands thermally, so that the glazing channel is cut off at the periphery of the glass groove of the ridge or the frame, and flames and heat enter the indoor through the gap between the glass groove and the double-glazed glass and spread the fire. To prevent it.

JP 2013-19116 A JP 2013-79563 A

  By the way, in order to raise the heat insulation of a joinery, what set the double-glazed glass to triple glass, and provided the heating foam material in the full width of the area | region facing the edge part of triple glass is known. In this case, since there is an intermediate glass between the outdoor side glass and the indoor side glass provided in the multilayer glass, like the pair glass joinery described in the above-mentioned Patent Document 1, the heated foam that expands when a fire occurs Even if the combustible gas is contained between the glasses by the material, the relatively thin intermediate glass may be partially broken by the heated foam material.

And a local temperature difference will arise in the non-heated surface side glass between the broken part of the intermediate glass and the remaining cracked part, for example, in the multilayer glass. Then, the indoor side glass on the non-heated surface side may be damaged due to the temperature difference.
In that case, there is a gap between the reinforcing member and the double-glazed glass, so that the heating surface side glass falls down or the double-glazed glass comes off, etc. was there.
Also, in the joinery described in Patent Document 2, when the double-glazed glass is triple-glazed, a heating foam material is installed between the outdoor side surface and the glazing channel. There was a risk that the glass would slip or come off the glass groove of the ridge or frame.

  The present invention has been made in view of such problems, and in a multi-layer glass having three or more layers, the intermediate glass may be partially damaged by thermal expansion of the heating foam material in the event of a fire or the like. An object of the present invention is to provide a multi-layer glass body and a joinery which prevent the multi-layer glass from being displaced or detached and preventing flames and heat from circulating indoors and outdoors.

The multi-layer glass body according to the present invention includes a multi-layer glass in which three or more layers of glass are arranged via a spacer, a support covering the end of the multi-layer glass, and an end of the intermediate glass located in the middle of the multi-layer glass. And a heating foam material provided in the vicinity of the portion.
According to the multi-layer glass body according to the present invention, with the multi-layer glass body held in the joinery, the heating surface side glass close to the flame by the foaming and thermal expansion of the heating foam material in the event of a fire, etc. The intermediate glass located between the non-heated surface side glasses away from the flame can be broken as a whole. Therefore, the temperature difference between the heated surface side glass and the non-heated surface side glass is reduced, and the non-heated surface side glass can be prevented from being damaged by the temperature difference due to partial breakage of the intermediate glass. It is possible to prevent the body from falling over or coming off from the body or the like, and to prevent a gap from being generated, and to prevent the flame and heat from being distributed indoors and outdoors.

Moreover, it is preferable to provide a heating foam material in the position facing the edge part of the intermediate glass in a support tool.
By providing a heating foam on the support that faces the edge of the intermediate glass, a local temperature difference does not occur between the heated surface side glass and the non-heated surface side glass in the event of a fire. The entire intermediate glass can be broken by foaming the heated foam material.

A joinery according to the present invention includes a frame, a multi-layer glass provided in the frame and arranged with three or more layers of glass through a spacer, a support covering an end of the multi-layer glass, and a multi-layer glass. And a heating foam material provided in the vicinity of the end of the intermediate glass.
According to the joinery according to the present invention, in the state where the multi-layer glass is held in the frame, a heated foam material is used so as not to cause a local temperature difference in the non-heated surface side glass in the multi-layer glass when a fire occurs. It is possible to suppress the thermal distribution of the non-heated surface glass that is transferred from the heated surface side glass and becomes non-uniform due to thermal expansion and damage to the entire intermediate glass. Therefore, a local temperature difference does not occur in the non-heated surface side glass due to partial breakage of the intermediate glass, and the non-heated surface side glass is not damaged.

Moreover, it is preferable to provide a heating foam material in the position which opposes the edge part of at least intermediate glass in a support tool.
In the event of a fire, etc., the intermediate glass can be broken by foaming the heated foam material provided on the support so as not to cause a local temperature difference in the indoor glass of the joinery.

Moreover, it is preferable that a heating foam material is provided also in the edge part vicinity of the outdoor side glass in a multilayer glass, and is not provided in the indoor side glass.
Since the heating foam is provided in the vicinity of the intermediate glass of the multilayer glass and the outdoor side glass, and not in the vicinity of the indoor side glass, when each heating foam is thermally expanded, the space between the outdoor side glass and the support is Sealed with heated foam material, the intermediate glass can be damaged as a whole, but the indoor side glass is not provided with a heated foam material, so excessive stress does not work on the multi-layer glass, holding the outdoor side glass and the indoor side glass It is possible to prevent misalignment or detachment of the multi-layer glass.
In addition, in the double-sided glass of the present invention, the outdoor side glass and the indoor side glass sandwiching the intermediate glass become the heated surface side glass in the fire and the side away from the flame becomes the non-heated surface side glass.

Further, the end portion of the multi-layer glass is enclosed in a frame and enclosed in the frame body, and the support is a reed portion facing the end portion of the multi-layer glass, and a heating foam material is provided on the reed portion. May be.
Even in this case, the intermediate glass of the multi-layer glass can be broken as a whole by the heating foam material provided in the collar portion.

Moreover, it is preferable that the intermediate glass in the fireproof multilayer glass is relatively weaker than the outdoor side glass and the indoor side glass, for example, is formed with a small thickness.
In this case, the thermal foaming material provided in the vicinity of the end of the intermediate glass at the time of the occurrence of a fire etc. is thermally expanded so as not to cause a local temperature difference in the non-heated surface side glass of the multilayer glass. The entire intermediate glass can be broken.

  According to the multi-layer glass body and the joinery according to the present invention, the non-heated surface side glass is obtained by foaming the heating foam material in the event of a fire or the like, with the multi-layer glass held by the joinery, and damaging the intermediate glass as a whole. It is possible to prevent a local temperature difference from occurring in the substrate.

It is a principal part longitudinal cross-sectional view of the vertical extension window by 1st embodiment of this invention. It is a principal part horizontal sectional view of the vertical extension window shown in FIG. FIG. 2 is an enlarged cross-sectional view of an upper frame portion of a vertical extending window shown in FIG. 1. FIG. 3 is an enlarged cross-sectional view of a lower frame portion of the vertical extension window shown in FIG. 1. It is a principal part longitudinal cross-sectional view of the FIX window by 2nd embodiment of this invention. It is a principal part horizontal sectional view of the FIX window shown in FIG. It is an expanded sectional view of the vertical frame part of the FIX window shown in FIG. It is an expanded sectional view of the vertical frame part of the FIX window by the modification of FIG.

Hereinafter, a fitting according to an embodiment of the present invention will be described.
First, the vertical window according to the first embodiment will be described with reference to FIGS.
1 and 2 is a composite sash made of aluminum and resin, FIG. 1 is a vertical sectional view of the vertical protruding window 1, and FIG. 2 is a horizontal sectional view. Show. In the vertical window 1 according to this embodiment, a frame body 6 in which an upper frame 3, a lower frame 4, and left and right vertical frames 5 are formed in a rectangular frame shape is attached to an opening 2 of the housing.
The shoji 8 housed in the frame 6 so as to be openable and closable has a rectangular frame-shaped casing 12 composed of an upper collar 9 and a lower collar 10 made of a composite sash made of aluminum and resin, and left and right vertical collars 11, respectively. And the multilayer glass 13 which consists of three layers or more, for example, triple glass, is stored in the inside.

In FIG. 1, the upper frame 3 of the frame 6 is configured by connecting a metal upper frame 14 provided on the outdoor side and a resin upper frame 15 provided on the indoor side. The metal upper frame 14 connects the outdoor side and the indoor side via a heat insulating material 16 made of resin. The upper casing 9 of the casing 12 is configured by connecting a metal upper casing 18 provided on the outdoor side and a resin upper casing 19 provided on the indoor side.
The lower frame 4 is configured by connecting a metal lower frame 20 provided on the outdoor side and a resin lower frame 21 provided on the indoor side. The metal lower frame 20 connects the outdoor side and the indoor side via a heat insulating material 24 made of resin. The lower casing 10 is configured by connecting a metal lower casing 22 provided on the outdoor side and a resin lower casing 23 provided on the indoor side.

  In FIG. 2, the left and right vertical frames 5 of the frame body 6 connect the metal vertical frame 25 on the outdoor side and the resin vertical frame 26 on the indoor side. The left and right vertical rods 11 of the housing 12 connect an outdoor metal vertical rod 27 and an indoor resin vertical rod 28.

Next, the multi-layer glass 13 accommodated in the housing 12 is provided with, for example, a three-layer glass having a rectangular plate shape, and the outdoor side glass 30, the intermediate glass 31, and the indoor side glass 32 are parallel to each other with the spacer 33 interposed therebetween. It is arranged. The outdoor side glass 30 is, for example, a netted glass and has the largest thickness, and the indoor side glass 32 has a thickness smaller than or equal to that of the outdoor side glass 30. The intermediate glass 31 has a smaller thickness than the outdoor side glass 30 and the indoor side glass 32, and is set to be broken by foaming and thermally expanding first heating foam materials 38a and 38b described later.
The multi-layer glass 13 is covered with a glazing channel 35 having a U-shaped cross section at each end of the four sides. In the horizontal sectional view shown in FIG. 2, a reinforcing metal fitting 36 a having a substantially U-shaped cross section is attached to the outside of the glazing channel 35, and the metal fitting 36 a is covered with the vertical rod 11. At both ends of the glazing channel 35, the outdoor side is locked by the end of the metal vertical pole 27 in the vertical fence 11, and the indoor side end is locked and fixedly held by the resin vertical fence 28.

Further, the upper end portion of the multilayer glass 13 in the longitudinal sectional view of the portion of the upper frame 3 shown in FIGS. 1 and 3 is also covered with the glazing channel 35. The outer side of the glazing channel 35 is covered and fixed by a support fitting 36b having a substantially U-shaped cross section. The support metal fitting 36b is covered with the glass groove 9a of the upper collar 9. At both ends of the glazing channel 35, the outdoor side is locked by the lower end of the metal upper bar 18 of the upper bar 9, and the indoor side end is locked and held by the lower end of the resin upper bar 19. .
In addition, in the support metal fitting 36b, the first heating foam material 38a is fixed at a position facing the intermediate glass 31 of the multilayer glass 13 with an adhesive or the like, and the second heating foam material is positioned at a position facing the outdoor side glass 30. 39a is fixed. In addition, the heating foam material is not provided in the position facing the indoor side glass 32.
The support fitting 36b is partially cut off in the longitudinal direction, and the first and second heating foam materials 38a and 39a are fixed to the metal upper collar 18 of the glass groove 9a in that portion.

Further, the lower end portion of the multilayer glass 13 in the longitudinal sectional view of the lower frame 4 shown in FIGS. 1 and 4 is also covered with the glazing channel 35. A support fitting 36c having a substantially U-shaped cross section is attached to the outside of the glazing channel 35. The support fitting 36c is supported by the glass groove 10a of the lower collar 10. At both ends of the glazing channel 35, the outdoor side is locked by the upper end of the metal lower bar 22 of the lower bar 10, and the indoor side end is locked and held by the upper end of the resin lower bar 23. .
Moreover, in the support metal fitting 36c, the first heating foam material 38b is fixed with an adhesive or the like at a position facing the intermediate glass 31 of the multilayer glass 13, and the second heating foam material is positioned at a position facing the outdoor side glass 30. 39b is fixed. In addition, the heating foam material is not provided in the position facing the indoor side glass 32.
Further, the support fitting 36c is partly cut in the longitudinal direction, and the first and second heating foams 38b and 39b are fixed to the metal lower bar 22 of the glass groove 10a in that portion.

The vertical window 1 according to the first embodiment has the above-described configuration, and the operation thereof will be described next.
In the vertical window 1 according to the present embodiment, for example, when a fire occurs on the outdoor side, the frame 6 and the shoji 8 are exposed to flame or heat and become high temperature. In this case, the outdoor side glass 30 of the multi-layer glass 13 of the shoji 8 becomes the heating surface side glass, and the indoor side glass 32 becomes the non-heating surface side glass. Then, the second heating foam materials 39a and 39b provided on the support fittings 36b and 36c of the upper and lower rods 9 and 10 in the multilayer glass 13 are foamed and thermally expanded, and the upper end of the netted outdoor side glass 30 having the largest thickness. And the gap with the lower end is sealed.
At the same time, the first heating foams 38a and 38b are also foamed and thermally expanded, so that the intermediate glass 31 is broken through the glazing channels 35 provided at the upper and lower ends of the multilayer glass 13.

  In this case, in the conventional vertical window, the intermediate glass is first cracked by the high-temperature heat and the heating foam provided in the full width of the double-glazed glass, and also causes a split cracking method. There was a defect that a temperature difference occurred in the indoor side glass with the remaining cracked portion and it was cracked by thermal stress. Moreover, since the heating foam material was provided over the entire width of the triple-layer glass of the double-glazed glass, the thermal expansion pressure was large, and the double-glazed glass sometimes shifted or detached.

In contrast, in the present embodiment, since the first heating foam materials 38a and 38b are provided in the vicinity of the upper and lower ends of the intermediate glass 31 on the support fittings 36b and 36c, before the internal temperature difference increases. The intermediate glass 31 can be broken as a whole by thermal expansion. Therefore, the temperature difference generated in the space between the outdoor side glass 30 and the indoor side glass 32 is small, and the indoor side glass 32 can be prevented from breaking.
And since the heating foam material is not provided in the position which opposes the upper-lower end part of the indoor side glass 32 of the multilayer glass 13, it can prevent that the multilayer glass 13 slips | deviates from the housing | casing 12, or remove | deviates.

  Therefore, in the present embodiment, the multi-layer glass 13 provided between the upper and lower screens 9 and 10 of the shoji 8 in the vertical opening window 1 when the flame is generated is the netted outdoor side glass 30 and the indoor side glass 32. Are held in a sealed state by the first heating foam materials 38a and 38b and the second heating foam materials 39a and 39b without being damaged. Therefore, since no gap is generated between the multi-layer glass 13 and the support fittings 36b and 36c, it is possible to delay the spread of fire by preventing flames and heat from flowing into the indoors.

As described above, according to the vertical window 1 according to the present embodiment, the first heating foams 38a and 38b are provided at positions facing the intermediate glass 31 at the upper and lower end portions of the three-layered multi-layer glass 13, and the middle It is possible to prevent the glass 31 from being damaged as a whole before the temperature rises, and to prevent the indoor side glass 32 from being damaged due to a temperature difference. And since the 2nd heating foam materials 39a and 39b were provided in the position which opposes the upper-lower-end part of the outdoor side glass 30, it can seal between support metal fittings 36b and 36c.
Further, since the heating foam material is not provided at the position facing the indoor side glass 32, the thermal expansion pressure of the heating foam material does not become excessive, and the multi-layer glass 13 is displaced or detached from the support fittings 36b, 36c of the housing 12. Can be prevented. Therefore, it can prevent that a clearance gap produces between the multilayer glass 13 and the housing 12, and a flame, heat, etc. distribute | circulate indoors and outdoors.

  The joinery and the multi-layer glass body according to the present invention are not limited to the vertical window 1 according to the above-described embodiment, and can be appropriately changed or replaced without departing from the gist of the present invention. . Although other embodiments and modifications of the present invention will be described below, the same or similar parts as those described in the first embodiment will be described using the same reference numerals.

(Second embodiment)
Hereinafter, a FIX window 41 having a multilayer glass body according to a second embodiment of the present invention will be described with reference to FIGS.
The joinery according to the second embodiment shown in FIGS. 5 and 6 is a FIX window (fitting window) 41 made of a composite sash of aluminum and resin. In the FIX window 41 according to the second embodiment, a frame body 6 in which an upper frame 3, a lower frame 4, and left and right vertical frames 5 are formed in a rectangular frame shape is attached to the opening 2 of the housing. A multi-layer glass 13 is mounted in the frame body 6 from, for example, triple glass.

In FIG. 5, the upper frame 3 of the FIX window 41 is configured by connecting a metal upper frame 14 provided on the outdoor side and a resin upper frame 15 provided on the indoor side, and the lower frame 4 is a metal lower frame provided on the outdoor side. 20 and a resin lower frame 21 provided on the indoor side are connected to each other. In FIG. 6, the left and right vertical frames 5 are configured by connecting a metal vertical frame 25 provided on the outdoor side and a resin vertical frame 26 provided on the indoor side.
In FIG. 5, a squeezed portion 43 is formed between the metal upper frame 14 of the upper frame 3 and the resin upper frame 15 via the packing 42 to hold the upper end of the multilayer glass 13. Further, between the metal lower frame 20 and the resin lower frame 21 of the lower frame 4, a stagnation portion 44 that holds the lower end of the multilayer glass 13 is formed via a packing 42.

  Similarly, in FIG. 6, the left and right ends of the multilayer glass 13 are held through packing 42 between the metal vertical frame 25 in the left and right vertical frames 5 and the resin vertical frame 26 in which a plurality of resin hollow portions are formed. The stagnation portions 45 and 45 are respectively formed. Further, support brackets 47 having a substantially U-shaped cross section are disposed in the squeezed portion 45 so as to surround both the left and right ends of the multilayer glass 13, and both ends of the support bracket 47 are in contact with or close to the packing 42. Is held in.

Since the portions of the left and right vertical frames 5 have a symmetrical shape, the following description will be given by using one vertical frame 5 shown in FIG. 7 as a representative. In the support fitting 47 shown in FIG. 7, a first heating foam material 49 is installed at a position facing the end of the intermediate glass 31 of the multilayer glass 13. For example, the first heating foam 49 is fixed through the support metal 47 and the metal vertical frame 25 with a screw 50, but may be fixed with an adhesive or the like. Further, the second heating foam material 51 is installed at a position facing the end portion of the outdoor side glass 30 in the support fitting 47, and the second heating foam material 51 is fixed to the support fitting 47 with an adhesive or the like, for example. And the heating foam material is not installed in the position which opposes the both ends of the indoor side glass 32. FIG.
Further, a plurality of resin hollow portions 26a and 26b formed in the resin vertical frame 26 are formed between the metal vertical frame 25 and the support bracket 47, and are separately provided on a wall portion that forms a boundary between the resin hollow portions 26a and 26b. The heating foam material 53 is fixed. In the event of a fire, a separate heated foam material 53 foams and thermally expands, so that the other resin hollow portion 26b that retains and dissolves the shape of the resin hollow portion 26a is fastened, and the space between the metal vertical frame 25 and the support bracket 47 is retained. Seal.

Therefore, according to the FIX window 41 according to the second embodiment, in the event of a fire, the second heating foam material 51 facing the outdoor side glass 30 at both the left and right ends of the multilayer glass 13 is thermally expanded, and the support bracket 47 and the outdoor glass 30 with a net can be sealed to prevent flames, heat, and the like from circulating indoors and outdoors.
At the same time, the first heating foam 49 facing the intermediate glass 31 is thermally expanded before the temperature in the multilayer glass 13 rises, and the entire intermediate glass 31 is damaged. The temperature difference in the space between the glasses can be reduced. Thereby, it is possible to prevent the indoor side glass 32 from being damaged due to a temperature difference, and to prevent the end of the multi-layer glass 13 from being displaced or detached from the support bracket 47, and flame and heat circulate indoors and outdoors. This can be suppressed.
In addition, since the heating foam material is not provided at the position facing the indoor side glass 32, the thermal expansion of the heating foam material does not become excessive in the event of a fire, and the multi-layer glass 13 is displaced or detached from the support bracket 47 of the frame body 6. Can be prevented. Therefore, it can prevent that a clearance gap produces between the multilayer glass 13 and the support metal fitting 47, and a flame, heat | fever, etc. distribute | circulate indoors and outdoors.

In each of the above-described embodiments, the first heating foam materials 38a, 38b, 49 and the second heating foam materials 39a, 39b, 51 are opposed to the ends of the outdoor side glass 30 and the intermediate glass 31 of the multilayer glass 13. However, each heating foam may be formed continuously and integrally. Further, the second heating foam materials 39a, 39b, 51 facing the outdoor side glass 30 may not be provided. Even in this case, the space between the multilayer glass 13 and the support metal fitting can be sealed by the thermal expansion of the first heating foam materials 38a, 38b, and 49.
Moreover, although the multilayer glass 13 was comprised with triple glass, in this invention, you may comprise not only 3 layer glass but 4 or more layers glass. In this case, two or more intermediate glasses excluding the outdoor side glass 30 and the indoor side glass 32 become the intermediate glass 31.

  In each of the above-described embodiments, the first heating foam materials 38 a, 38 b, 49 and the second heating foam materials 39 a, 39 b, 51 are provided on the support bracket 47 at positions facing the intermediate glass 31 and the outdoor side glass 30. However, the present invention is not limited to this, and the intermediate glass 31 and the outdoor side glass 30 may be disposed in the vicinity of the end portions. For example, as shown in FIG. 8, the first heating foam material 49 (38 a, 38 b) may be installed on the spacer 33 in the vicinity of the intermediate glass 31, or may be installed directly on the intermediate glass 31. Even in these cases, the intermediate glass 31 can be reliably damaged in the event of a fire. Further, the second heating foam material 51 (39a, 39b) can be similarly installed on the spacer 33, the outdoor side glass 30, or the like for the outdoor side glass 30.

  In the first embodiment described above, the first and second heating foams 38a, 38b, 39a, 39b are provided near the upper and lower ends of the multilayer glass 13, but may be provided near the left and right ends. Similarly, in the second embodiment, the first and second heating foam materials 49 and 50 are provided in the vicinity of the left and right end portions of the multilayer glass 13, but may be provided in the vicinity of the upper and lower end portions. Alternatively, it may be provided in the vicinity of the upper, lower, left and right end portions of the multilayer glass 13.

In addition, in the joinery by embodiment mentioned above, a modification, etc., although the spacer 33 of the multilayer glass 13 is generally made from an aluminum alloy, it may replace with this and may form with resin.
That is, in the conventional joinery, when the spacer 33 of the multilayer glass 13 is formed of resin, the spacer 33 is melted or deformed by heat in the event of a fire, and the flames circulate indoors and outdoors as each glass falls. There was a possibility.
In the present invention, since the first and second heating foam materials 39b and 38b are arranged below the spacers 33 between the outdoor side glass 30, the intermediate glass 31, and the indoor side glass 32 in the multilayer glass 13, The spacer 33 is protected from flame. Therefore, even if the spacer 33 is a resin, it can be prevented from melting or deforming during a fire.
The structure in which the second heating foam material 38b is installed below the multi-layer glass 13 including the resin spacer 33 is not limited to the multi-layer glass 13 including three or more layers of glass. It can also be used in double-layer glass.

In the first embodiment, the upper collar 9, the lower collar 10, and the vertical collar 11 of the casing 12 constitute a collar, and the support fittings 36b, 36c, and 47 constitute a support.
Moreover, although the above-mentioned embodiment demonstrated the case where a fire occurred on the outdoor side, this invention is applicable also when a fire occurs on the indoor side. In this case, the indoor side glass 32 of the multilayer glass 13 becomes a heating surface side glass, and the outdoor side glass 30 becomes a non-heating surface side glass.
In addition, although the vertical facing window 1 and the FIX window 41 have been described as examples of the joinery according to the present invention, the present invention is not limited to this, and the horizontal facing window, the sliding window, the continuous window, and the single window are described. Or various doors.

DESCRIPTION OF SYMBOLS 1 Vertical extension window 3 Upper frame 4 Lower frame 5 Vertical frame 6 Frame 8 Shoji 9 Upper eaves 10 Lower eaves 11 Vertical eaves 13 Multi-layer glass 33 Spacer 35 Grazing channel 36a, 36b, 36c, 47 Support metal fittings 38a, 38b, 49 1st heating foam materials 39a, 39b, 51 2nd heating foam materials 41 FIX windows 43, 44, 45

Claims (7)

Double-layer glass in which three or more layers of glass are arranged through a spacer;
A support covering an end of the multilayer glass;
A heating foam provided in the vicinity of the end of the intermediate glass located in the middle of the multilayer glass;
A multilayer glass body characterized by comprising:   The multilayer glass body described in Claim 1 which provided the said heating foam material in the position facing the edge part of the said intermediate glass in the said support tool. A frame,
Double-layer glass provided in the frame and arranged with three or more layers of glass through a spacer;
A support covering an end of the multilayer glass;
A heating foam provided in the vicinity of the end of the intermediate glass in the multilayer glass;
Joinery characterized by comprising.   The joinery according to claim 3, wherein the heating foam material is provided at a position facing at least an end portion of the intermediate glass in the support tool.   The joinery according to claim 3 or 4, wherein the heating foam material is also provided in the vicinity of an end portion of the outdoor side glass in the multilayer glass and is not provided in the indoor side glass.   The end portion of the multi-layer glass is enclosed in a frame and enclosed in the frame body, the support is a eave portion facing the end portion of the multi-layer glass, and the heating foam is provided on the eave portion. The joinery described in any one of claims 3 to 5. The joinery according to any one of claims 3 to 6, wherein the intermediate glass in the multi-layer glass has lower strength than the outdoor side glass and the indoor side glass.

Images