JP6442354B2 - Joinery - Google Patents

Description

  The present invention relates to a joinery.

  Patent Document 1 discloses a joinery in which a reinforcing material is provided on a frame or ridge made of a resin material.

JP 2010-265646 A

  However, if a gap is formed by melting the resin material at the time of a fire, there is a possibility that the fire spreads through the flame or smoke from the gap.

  Then, this invention aims at provision of the fitting which can block the clearance gap which the resin material fuse | melted at the time of a fire.

  The invention according to claim 1 is provided with one resin-made material constituting the frame or ridge and the other resin-made material facing the one material, and the one material is arranged on the surface on the other material side. It has an outer plate with a flame material, an inner plate with a flame shield material arranged in a hollow portion located next to this, and a reinforcing material, and the flame shield material expands when it receives heat during a fire, The outer plate and the inner plate are connected to a reinforcing member by a connecting means, and the other member is a fitting having a receiving part for a flame barrier.

The invention according to claim 2 includes one material made of an aluminum resin composite material that constitutes a frame or a ridge, and the other material made of an aluminum resin composite material or aluminum material facing the one material, and the one material is the other It has an outer plate with a flame shield disposed on the surface of the material side, and an inner plate with a flame shield disposed in a hollow portion made of a resin material located next to the outer plate. The fitting expands when received, and the outer plate and the inner plate are connected to one aluminum material by a connecting means, and the other material is a fitting having a receiving portion for a flame barrier.

  The invention according to claim 3 is provided with one material made of a resin material constituting a frame or a collar and the other material made of a resin material facing the one material, and the one material is a surface on the other material side or the other material side. Having a plate with a flame shield disposed in the hollow portion of the material, and a reinforcing material, the flame shield is to expand when receiving heat at the time of fire, the other material has a receiving portion of the flame shield, The plate with the flame barrier is connected to the reinforcing member by the connecting means, and is attached to the connecting means so as to be tiltable with respect to the receiving portion of the flame shield when the resin material is melted by heat at the time of fire. It is a joinery.

The invention according to claim 4 is provided with one material made of an aluminum resin composite material that constitutes a frame or a cage, and the other material made of an aluminum resin composite material or aluminum material facing the one material, and the one material is the other It has a plate with a flame shield disposed in the hollow side made of resin material on the material side or the other material side, the flame shield expands when it receives heat during a fire, and the other material is a flame shield The plate with the flame shield material is connected to the aluminum material of one material by the connecting means and is inclined with respect to the flame shield material receiving portion when the resin material is melted by heat at the time of fire It is a joinery characterized by being attached to be possible.

  According to the first aspect of the present invention, even when the resin material melts in the event of a fire and a gap is formed between the one material and the other material, the outer plate with the flame shield material connected to the reinforcing material and the flame shield The inner plate with the material remains, and the flame shield material expands between each plate and the receiving portion of the flame shield material provided on the other material, thereby closing the gap.

  According to the invention described in claim 2, even when the resin material melts in the event of a fire and a gap is formed between the one material and the other material, the outer plate with the flame shield material connected to the aluminum material and the flame shield The inner plate with the material remains, and the flame shield material expands between each plate and the receiving portion of the flame shield material provided on the other material, thereby closing the gap.

  According to the invention of claim 3, even when the resin material melts at the time of a fire and a gap is formed between the one material and the other material, the plate with the flame shield connected to the reinforcing material remains, Since the plate with the flame shield material is inclined with respect to the receiving portion of the flame shield material, one end side of the plate with the flame shield material approaches the flame shield material receiving portion and the gap between the flame shield material receiving portion can be reduced. Therefore, when the flame shield material expands, the flame shield material can be quickly brought into contact with the receiving portion of the flame shield material to close the gap between the flame shield material receiving portion and the plate.

  According to the invention of claim 4, even when a resin material melts at the time of a fire and a gap is formed between one material and the other material, a plate with a flame shielding material connected to the aluminum material remains, Since the plate with the flame shield material is inclined with respect to the receiving portion of the flame shield material, one end side of the plate with the flame shield material approaches the flame shield material receiving portion and the gap between the flame shield material receiving portion can be reduced. Therefore, when the flame shield material expands, the flame shield material can be quickly brought into contact with the receiving portion of the flame shield material to close the gap between the flame shield material receiving portion and the plate.

It is a cross-sectional view which extracts and shows the summoning part of the joinery concerning 1st Embodiment of this invention. It is a cross-sectional view of the joinery according to the first embodiment of the present invention. It is AA longitudinal cross-sectional view shown in FIG. 2 of the fitting concerning 1st Embodiment of this invention. It is a figure which shows various states of the outer side plate with a flame shield material and the inner side plate with a flame shield material when the resin material melts at the time of fire. It is the front view which looked at the fitting concerning 1st Embodiment of this invention from the room inner side. It is a cross-sectional view which extracts and shows the summoning part of the fitting concerning 2nd Embodiment of this invention. It is a cross-sectional view which extracts and shows the summoning part of the fitting concerning 3rd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, the first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 5, the joinery 1 according to the first embodiment is a sliding sash made of a resin material, and an inner shoji 3 a and an outer shoji 3 b are provided in a frame 2.
As shown in FIG. 2 and FIG. 3, the inner impeller 3 a includes a resin-made inner impeller sump 5 a, a door toe 7, an upper arm 9, and a lower arm 11, and a netted glass panel 13. The outer cover 3b is composed of resin-made outer cover summons 5b, the door toe 7, upper arm 9, and lower arm 11, which are assembled on the four sides of the mesh-made glass panel 13. It is. The frame 2 includes an upper frame 101 made of a resin material, a lower frame 103, and left and right collar frames 105.

As shown in FIG. 1, the shoji summon 5 a includes a resin material 15 and a resin material cover 21 a provided from the expected surface of the material 15 to the outdoor side. The shoji summon cage 5b includes the other material 17 made of a resin material and the other cover material 21b provided from the expected surface of the other material 17 to the indoor side. In the inner cot summoning cage 5a, the one member 15 has a body hollow portion 23a formed therein, and the cover member is hollow between the one member 15 and the one cover member 21a on the outdoor side. A part (hollow part) 25a is formed. One reinforcing member 27a made of steel is arranged in the main body hollow portion 23a of the one material 15.
The other material 17 is formed with a main body hollow portion 23b, and the other main reinforcing material 27b is provided in the main body hollow portion 23b.
The one material 15 has an outer plate 29 with a flame shield disposed on the surface on the other material 17 side, and an inner plate 31 with a flame shield disposed in the cover material hollow portion 25a located next to the outer plate 29. Is provided. A first flame shield material 99 a is disposed on the surface of the outer plate 29 on the other material 17 side, and a second flame shield material 99 b is disposed on the surface of the inner plate 31 on the other material 17 side. The outer plate 29 and the inner plate 31 are made of steel, and each of the plates 29 and 31 is connected to one reinforcing member 27a by a connecting means 33. The connecting means 33 is a screw.
The outer plate 29 and the inner plate 31 are formed with flaw holes having such a diameter that the head of the shaft of the connecting means 33 cannot be removed, and the shafts of the connecting means 33 are passed through the respective flaw holes. It is attached with a backlash (hereinafter referred to as “free fitting”). The outer plate 29 is pressed against one cover member 21a by the head of the connecting means 33.
One reinforcing member 27 a has a substantially U-shaped cross-section with an opening on the indoor side, a third flame shielding material 99 c is provided on the opposite inner surface of the U shape, and a fourth flame shielding material is provided between the one material 15. 99d is provided.
The other reinforcing member 27b has a substantially U-shaped cross-section with an opening on the outdoor side, like the one reinforcing member 27a, and a third flame shield material 99c is provided on the opposite inner surface of the U shape, and the other material main body 19b. The fourth flame barrier 99d is provided between the two. In the other reinforcing material 27b, a region of the outer plate 29 facing the first flame shield 99a is a receiving portion 55 that is received when the first flame shield 99a is expanded.
The inner edge 39 that engages with the end portion of the panel 13 is provided with a steel front edge reinforcing material 37 in each of the inner paper sliding door summon 5a and the outer paper sliding door summon 5b. The reinforcing members 27a and 27b are connected by screws 35. A fifth flame barrier 99e is disposed between the front opening reinforcing member 37 and the panel 13. An airtight material 41 is provided on the indoor side surface of the other cover member 21b, and a smoke return 43 is formed on one cover member 21a and the other cover member 21b.

As shown in FIG. 2, the heel hollow portions 45 are formed in the door-end ridges 7 of the inner and outer obstacles 3 a and 3 b, and the heel hollow portions 45 are provided with a heel reinforcing material 47. A sixth flame barrier 99 f is disposed on the outer peripheral side surface of the heel reinforcement 47. Similarly to the summon bowls 5 a and 5 b, the front door 7 has a front opening 39 on the panel 13, and the front opening 39 is provided with a front opening reinforcing material 37. A fifth flame barrier 99e is disposed between the two. The front-end reinforcing member 37 of the door-end rod 7 is connected to the rod reinforcing material 47 with a screw 35. An engagement groove 49 having a substantially U-shaped cross section that opens on the side of the eaves frame 105 is formed on the door end fence 7, and a substantially U-shaped cross section that opens on the side of the eaves frame 105 is formed inside the engagement groove 49. The engaging groove reinforcing material 51 is provided. The engaging groove reinforcing material 51 is made of steel, and a seventh flame shielding material 99g is provided on the inner side.
As shown in FIG. 3, the upper eaves 9 and the lower eaves 11 of the inner and outer children 3 a and 3 b are provided with eaves reinforcing material 47 having a substantially rectangular cross section provided in the eaves hollow portion 45, as with the door end eaves 7. The sixth flame shield material 99f is provided on the four circumferences of the outer peripheral surface of the heel reinforcing material 47. Note that the engaging groove 49 and the engaging groove reinforcing member 51 with the upper rail 107a provided on the upper collar 9 have a substantially U-shaped cross section with the upper frame 101 side opened. Further, the engaging groove 49 and the engaging groove reinforcing member 51 with the lower rail 107b provided on the lower rod 11 have a substantially U-shaped cross section with an opening on the lower frame 103 side.

Each of the upper rail 107a and the lower rail 107b corresponding to the inner and outer obstacles 3a and 3b is provided with an eighth flame shield 99h on the protruding portion reinforcing member 109 provided in the hollow portion. Of the upper rail 107a and the lower rail 107b provided on the indoor side and the outdoor side, the protruding portion reinforcing member 109 provided on the indoor side upper rail 107a and the lower rail 107b is a frame provided in the hollow portion of the frame 2. The reinforcing material 113 is connected.
As shown in FIG. 2, each of the left and right flange frames 105 has a hollow engagement protrusion that protrudes toward the inner peripheral side and engages with the corresponding engagement groove 49 of the door-end flange, similar to the upper frame 101. A portion 107 is formed. In the hollow portion of each engagement protrusion 107, a steel protrusion reinforcement 109 is provided. The protruding portion reinforcing material 109 is connected to a frame reinforcing material 113 provided in a hollow portion of the collar frame 105 with a screw 111.
The frame reinforcing material 113 is connected to a steel case-side reinforcing material 117 with a screw 115. The frame side reinforcing material 117 is fixed to the frame 121 with a screw 119. The protruding portion reinforcing member 109 has a substantially U-shaped cross section, and an eighth flame barrier 99h is provided on the opposing inner surface of the U-shape. The frame reinforcing material 113 is provided with a ninth flame shield material 99i on the inner peripheral surface of the frame.
As shown in FIG. 5, the frame-side reinforcing material 117 provided on the four circumferences of the frame 2 is provided at intervals in two locations of the upper frame 101, the lower frame 103, the starboard frame 105 a, and the left frame 105 b. .
The first flame shield material 99a to the tenth flame shield material 99j are expanded by receiving the heat of a fire, and, for example, start foaming at about 160 ° C to 200 ° C.

Next, the effect of the fitting 1 which concerns on this Embodiment is demonstrated. In the following description, the door tip side is the door tip side of the inner shoji 3, and the door bottom side is the door bottom side of the inner shoji 3.
As shown in FIG. 4, when the airtight material 41 made of a resin material or the smoke return 43 melts and burns down in the event of a fire, an airflow path 53 is formed between the one material 15 and the other material 17. At this time, the outer plate 29 with the flame shield and the inner plate 31 with the flame shield remain connected to the one reinforcing member 27a. Further, the outer plate 29 and the inner plate 31 loosely fitted to the one reinforcing member 27a by the connecting means 33 are inclined in various states. By this inclination, either the door end side end 29a or the door end side end 29b of the outer plate 29 approaches the receiving portion 55 on the other material 17 side. In the inner plate 31, either the door end side end 31 a or the door bottom side end 31 b of the inner plate 31 approaches the receiving portion 55. The receiving portion 55 is a region facing the first flame shield 99a. When the resin portion of the other material 17 remains undissolved, this resin portion functions as the receiving portion 55, and the other reinforcing material 27b or frontage When the reinforcing material 37 is exposed to the first flame shield 99 a, this reinforcing material portion functions as the receiving portion 55.
The airflow passage 53, the receiving portion 55, the outer plate 29, the inner plate 31, and the like can take various arrangements and inclinations depending on the situation of the fire, etc. As typical examples, based on FIGS. 4 (a) to (d). I will explain. In FIG. 4, the flame shields other than the first flame shield 99a and the second flame shield 99b are omitted.

In the example shown to Fig.4 (a), the door bottom side end 29b of the outer side plate 29 is located near the receiving part 55 rather than the door tip side end 29a. Further, the inner plate 31 is inclined so that the door end side 31a is located closer to the receiving portion 55 than the door end side end 31b. In this case, since the gap between the outer plate 29 and the receiving portion 55 is narrow at the door butt side end 29b of the outer plate 29, the first flame shield 99a expands by receiving heat during a fire, and the outer plate 29 and the receiving portion 55 can be efficiently closed. Moreover, since the clearance gap between the inner side plate 31 and the outer side plate 29 is narrow at the door end side 31a of the inner side plate 31, the 2nd flame shield 99b expands in response to the heat at the time of a fire, and the inner side plate 31 is expanded. And the outer plate 29 can be efficiently closed. As a result, the airflow passage 53 can be quickly closed by the first flame shield 99a and the second flame shield 99b.
In FIG.4 (b), the door bottom side end 29b of the outer side plate 29 is located near the receiving part 55 rather than the door tip side end 29a. Further, the door butt side end 31 b of the inner plate 31 is located closer to the receiving portion 55 than the door tip side end 31 a of the inner plate 31. Also in this case, similarly to the case of FIG. 4A, the first flame shield 99 a can efficiently close the gap between the outer plate 29 and the receiving portion 55. Moreover, since the clearance gap between the inner side plate 31 and the outer side plate 29 is narrow in the door butt side end 31b of the inner side plate 31, the 2nd flame shield 99b expand | swells with the heat at the time of a fire, and the inner side plate 31 and outer side The gap with the plate 29 can be efficiently blocked. As a result, the airflow passage 53 is quickly closed by the first flame shield 99a and the second flame shield 99b.
In FIG.4 (c), the door-end side end 29a of the outer side plate 29 is located near the receiving part 55 rather than the door-end side end 29b. Further, the door end side end 31 a of the inner plate 31 is located closer to the receiving portion 55 than the door bottom side end 31 b of the inner plate 31. At this time, since the gap between the outer plate 29 and the receiving portion 55 is narrow at the door end side 29a of the outer plate 29, the first flame shield 99a expands due to heat at the time of the fire, The gap with the receiving portion 55 can be efficiently blocked. Similarly to the case of (a), the second flame shield 99b can efficiently close the gap between the inner plate 31 and the outer plate 29. As a result, the airflow passage 53 can be quickly closed by the first flame shield 99a and the second flame shield 99b.
In FIG.4 (d), the door butt side end 29b of the outer side plate 29 is located near the receiving part 55 rather than the door tip side end 29a. Further, the door butt side end 31b of the inner plate 31 is located closer to the receiving portion 55 than the door end side end 31a. At this time, similarly to the case of FIG. 4C, the first flame shield 99 a can efficiently close the gap between the outer plate 29 and the receiving portion 55. Further, as in the case of FIG. 4B, the second flame shield 99 b can efficiently close the gap between the inner plate 31 and the outer plate 29. As a result, the airflow passage 53 is quickly closed by the first flame shield 99a and the second flame shield 99b.

As described above, the outer plate 29 and the inner plate 31 are inclined in various forms, so that one end side of each flame shield material-attached plate 29, 31 approaches the flame shield material receiving portion 55 and between the receiving portion 55. Since the gap can be reduced, the first flame shield material 99a and the second flame shield material 99b can quickly block the air flow passage 53, so that outside air can enter the room through the air flow passage 53 in the event of a fire, It is possible to efficiently prevent the spread of fire due to spraying outside the room.
Further, by arranging the inner plate 31 with the second flame shield 99b in the hollow portion 25a, the first flame shield 99a is provided in the gap of the airflow passage 53 when the one material 15 made of resin is burned off. Two plates, the outer plate 29, are arranged and closed with two flame shields, a first flame shield 99 a near the receptacle 55 and a second flame shield 99 b away from the receptacle 55. As a result, the airflow passage 53 can be efficiently blocked.

As shown in FIG. 1, the third flame shield 99c provided on the opposing inner surfaces of the U-shaped cross-sections of the one reinforcing member 27a and the other reinforcing member 27b of each summit bowl 5a, 5b The main body hollow portion 23a of the one material 15 and the main body hollow portion 23b of the other material 17 are closed, and outside air flows into the room through the hollow portion 23a of the one material 15 and the hollow portion 23b of the other material 17. Or the spread of fire due to an indoor flame spouting out of the room. The fourth flame barrier 99d provided between the one reinforcing member 27a and the one member 15 expands due to heat at the time of a fire, closes the gap between the one reinforcing member 27a and the front opening reinforcing member 37, and from this gap It is possible to prevent the spread of fire due to the inflow of outside air or the ejection of flame.
As shown in FIGS. 1-3, the 5th flame-shielding material 99e provided in each frontage reinforcement material 37 expand | swells with the heat at the time of a fire, plugs up the clearance gap between each frontage reinforcement material 37 and the panel 13, and the inner card 3a In addition, it is possible to prevent the panel 13 from falling off from the external shoji 3b, and it is possible to prevent the spread of fire due to the inflow of outside air or the ejection of flame through these gaps.
The sixth flame barrier material 99f provided on the fence reinforcement material 47 of the door rod 7, the upper fence 9, and the lower fence 11 expands due to heat at the time of a fire, and the flame reinforcement material 47 of each of the fences 7, 9, 11 The gap between the front opening reinforcing member 37, the gap between the heel reinforcing member 47 and the engaging groove reinforcing member 51, the gap between the metal member to which the handle is attached, and the like are closed. The seventh flame barrier material 99g provided in each engagement groove reinforcing material 51 expands due to heat at the time of a fire, closes the gap between the engagement groove reinforcing material 51 and the corresponding protrusion reinforcing material 109, and the door toe 7 In addition, it is possible to prevent the spread of fire due to the outside air flowing into the room through the upper rod 9 and the lower rod 11 or the flame in the room blowing out to the outside.
The ninth flame shield 99i provided on each frame reinforcing member 113 of the frame 2 expands due to heat at the time of a fire, and can close the gap between the frame reinforcing member 113 and the protruding portion reinforcing member 109.
As shown in FIGS. 2, 3, and 4, the frame-side reinforcing material 117 is fixed to the frame 121 and is connected to the frame reinforcing material 113 and the protruding portion reinforcing material 109. 121 can be held.

Other embodiments of the present invention will be described below. In the embodiments described below, parts having the same operational effects as those of the first embodiment described above are denoted by the same reference numerals. The description of that part is omitted, and in the following description, differences from the first embodiment will be mainly described.
A second embodiment of the present invention will be described with reference to FIG.
The second embodiment is different from the first embodiment in that the one material 15 and the other material 17 are integrally formed with the cover materials 21a and 21b in the first embodiment described above. Yes. In the one material 15, the main body hollow portion 23 a is defined by a region surrounded by the one reinforcing material 27 a and the one material 15.
According to such 2nd Embodiment, there can exist an effect similar to 1st Embodiment. Further, in the second embodiment, since one cover material 21a and the other cover material 21b are not provided, the manufacturing cost can be reduced by reducing the number of parts of each summing bowl 5a, 5b. .

Next, a third embodiment will be described with reference to FIG.
In the third embodiment, the joinery 1 is an aluminum resin composite sash, the one material 15 is composed of an aluminum material one material main body 19a and a resin material one material cover material 21a, and the other material 17 is the other material 17. The difference from the first embodiment is that the main body is made of aluminum. Further, the one member 15 and the other member 17 do not have the corresponding reinforcing members 27 a and 27 b, and the outer plate 29 and the inner plate 31 are connected to the one member 15 by the connecting means 33.
In the third embodiment, since the aluminum one material 15 remains in the event of a fire, the outer plate 29 and the inner plate 31 can be held in the event of a fire.
Therefore, according to the third embodiment, the same effect as that of the first embodiment can be obtained.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
For example, in the first and second embodiments, each reinforcing member 27a is not limited to a steel material, but may be another metal material such as aluminum or a carbon material. As long as the melting point is high.
In the first and second embodiments, the connecting means 33 is not limited to a screw, and may be a shaft member that is inserted into the outer plate 29 and the inner plate 31 and attached to one of the reinforcing members 27a. Also in the embodiment, the connecting means 33 may be a shaft member that is attached to the one member 15 through the outer plate 29 and the inner plate 31.
In the third embodiment, the other material 17 is an aluminum material. However, the present invention is not limited to this, and the other material 17 is an aluminum resin composite material in which a cover material made of a resin material is provided on an aluminum material in the same manner as the one material 15. Also good.
The joinery 1 is not limited to the sliding sash and may be a sliding door. Furthermore, the joinery 1 only needs to have the one member 15 and the other member 17 facing each other. For example, the one member 15 may be a FIX shoji frame and the other member 17 may be upright.
In invention of Claim 3, in 1st and 2nd embodiment, at least one plate with a flame-shielding material among the outer plate 29 with the first flame-shielding material 99a and the inner plate with the second flame-shielding material 99b In this case, the outer plate 29 with the first flame shield 99a located near the receiving portion 55 and the inner plate 31 with the second flame shield 99b located farther from the outer plate 29 are provided. Except for the effect that the airflow passage 53 can be efficiently blocked by arranging the two plates, the same operational effects as those of the first and second embodiments can be obtained.
In the fourth aspect of the present invention, in the third embodiment, at least one of the plate with the flame shield material is selected from the outer plate 29 with the first flame shield material 99a and the inner plate with the second flame shield material 99b. In this case, the outer plate 29 with the first flame shield 99a at a position close to the receiving portion 55 and the inner plate 31 with the second flame shield 99b at a position farther from the outer plate 29 are provided. Except for the effect that the airflow passage 53 can be efficiently blocked by arranging two plates, the same effects as those of the third embodiment can be achieved.

1 Joinery 5a Calligraphy summon bowl (框)
15 One material 17 Other material 25a Cover material hollow part (hollow part)
27a One reinforcing material 99a First flame shield material 29 Outer plate (plate)
99b Second flame barrier 31 Inner plate (plate)
33 connecting means 55 receiving part

Claims (4)

  An outer plate with a flame shielding material provided on one surface of the other material side, the one material made of a resin material constituting the frame or the collar and the other material made of a resin material facing the one material; It has an inner plate with a flame shield disposed in the adjacent hollow portion, and a reinforcing material, and the flame shield expands when it receives heat during a fire, and the outer plate and the inner plate are connected by means of connection. A joinery characterized in that it is connected to a reinforcing material and the other material has a receiving part for a flame barrier. Flame shield that has one material made of an aluminum resin composite material that constitutes a frame or a saddle and the other material made of an aluminum resin composite material or aluminum material that faces the one material, and the one material is arranged on the surface on the other material side An outer plate with a material, and an inner plate with a flame barrier disposed in a hollow portion made of a resin material located next to the outer plate. The flame barrier expands when receiving heat during a fire. A joinery characterized in that the plate and the inner plate are connected to one aluminum material by a connecting means, and the other material has a receiving portion for a flame shield material.   A flame barrier material comprising one material made of a resin material constituting a frame or a collar and the other material made of a resin material facing the one material, and the one material is disposed in a surface on the other material side or in a hollow portion on the other material side The flame shield material expands when receiving heat during a fire, the other material has a flame shield receiving portion, and the flame shield plate is a connecting means. A fitting that is connected to a reinforcing member and is attached to a connecting means so as to be tiltable with respect to a receiving portion of the flame shield when the resin material is melted by heat at the time of a fire. It is provided with one material made of an aluminum resin composite material that constitutes a frame or a cage and the other material made of an aluminum resin composite material or aluminum material facing the one material, and the one material is a surface on the other material side or the other material side It has a plate with a flame shield material arranged in a hollow part made of resin material, and the flame shield material expands when receiving heat at the time of fire, and the other material has a flame shield material receiving part, The plate with the material is connected to the aluminum material of one material by the connecting means, and is attached so as to be tiltable with respect to the receiving portion of the flame shielding material when the resin material is melted by heat at the time of fire. Joinery to do.

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