JP2018066244A - Fire protection sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire protection sash which prevents fire from spreading in a case of fire in a manner that a door roller becomes wrapped while a flow of a melted door roller into an indoor side or an outdoor side becomes suppressed in order to suppress an ignition.SOLUTION: The fire protection sash comprises a frame body installed on a building opening part, and a sliding door which has a resin door roller a on a bottom rail 32 and is openably/closably arranged in the frame body. A thermally expandable material f which expands toward the door roller a of the bottom rail 32 of the sliding door in a case of fire is provided on both side positions of a traveling direction of the door roller a.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a fire prevention fitting arranged in a building opening.

  In the joinery with the shoji that can be freely arranged along the rail provided at the opening of the building, by arranging a thermally expandable member on the side wall of the lower arm, even when the door wheel melts in the event of a fire, A joinery that can prevent the occurrence of a gap between the lower heel and the lower frame is known. (Patent Document 1).

JP 2014-66104 A

  However, since the thermally expansible member is arrange | positioned in the one side of the prospective direction with respect to the door pulley, the joiner melt | dissolved by expansion | swelling of the thermally expansible member is the indoor side or the outdoor side. It could flow into and ignite, causing fire spread.

  In view of the above circumstances, an object of the present invention is to wrap up a door wheel to prevent ignition and prevent fire spread while preventing a melted door wheel from flowing into the indoor side or the outdoor side during a fire.

  The present invention includes a frame disposed in a building opening, and a shoji that has a resin door on the lower arm and can be freely opened and closed in the frame, and is located at both sides in the traveling direction of the door to the lower arm of the shoji. Is provided with a heating expansion material that expands toward the door in the event of a fire.

  According to the configuration of the present invention, in the event of a fire, it is possible to wrap the door wheel placed on the lower arm of the shoji from the direction of finding by the heating expansion material, so that the door wheel is prevented from flowing down indoors or outside, and on the lower surface of the shoji It is possible to reliably wrap up and suppress the spread of fire due to ignition of the door roller.

It is a longitudinal cross-sectional view of the fire protection sash which concerns on embodiment of this invention. It is a cross-sectional view of a fire protection sash according to an embodiment of the present invention. It is an expanded vertical sectional view in the normal time of the lower frame part of the fire protection sash which concerns on embodiment of this invention. It is a figure for demonstrating the door protector means arrange | positioned at the lower arm of the fire protection sash which concerns on embodiment of this invention, (a) is a disassembled perspective view of the connection part of a vertical armpit and a lower arm, (b) is It is a figure which shows the arrangement | positioning state of the door protection means with respect to the door wheel arrange | positioned at the lower arm. It is a figure for demonstrating the door protection means arrange | positioned at the lower arm of the fire protection sash which concerns on embodiment of this invention, (a) is a top view of the refractory material holding member which is a door protection means, (b) is the same The side view, (c) is the same front view, (d) is the top view of the state attached to the reinforcing member of the lower eyelid, (e) is the same plan view. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating the door protection means of the fire protection sash which concerns on embodiment of this invention, (a) is a front view of the junction part of the lower arm of a shoji of a normal state, and a vertical fence, (b) is at the time of a fire It is a front view of the junction part of the lower arm of a shoji and a vertical arm.

A fire protection sash according to an embodiment of the present invention will be described with reference to the drawings.
(Overall configuration)
The fire protection sash according to the embodiment of the present invention is installed in a building opening, and as shown in FIGS. 1 and 2, a frame formed by assembling an upper frame 11, a lower frame 12, and left and right vertical frames 13 and 14 around four sides. The body 1, the upper collar 21, 31, the lower collar 22, 32, the left longitudinal collar 23, 33, and the right longitudinal collar 24, 34 are assembled around the four circumferences, and the panel body is fitted into the inner circumference. , 3 and is formed as a sliding sash by supporting the inner and outer obstacles 2 and 3 movably in the left-right direction along the outer guide rail formed in the frame 1.
The fireproof sash according to the present invention is not limited to the sliding sash, and any type of sash may be used as long as the shoji can be opened and closed with respect to the window frame, such as a single sliding window.

(Frame structure)
As shown in FIG. 1, the upper frame 11 constituting the frame 1 includes an outdoor upper member 111 formed of a metal material such as aluminum and having a hollow portion, and an indoor upper member formed of a metal material such as aluminum. 112, a connecting member 113 formed of a heat insulating material such as a resin for connecting the outdoor upper member 111 and the indoor upper member 112, and a resin material disposed and fixed on the inner periphery of the lower surface of the indoor upper member 112. It is comprised by the resin upper member 114 made.
An outer guide rail 111a for guiding the outer shoji 3 is suspended from the lower surface of the outdoor upper member 111 which is closer to the outdoor side, and the inner shoji 2 is guided to the lower surface of the outdoor outer end portion of the indoor upper member 112. The inner guide rail 112a is suspended.

  The resin upper member 114 includes an outdoor wall portion 114a that covers the indoor surface of the inner guide rail 112a of the indoor upper member 112, an upper wall portion 114b that covers the lower surface of the indoor upper member 112, and an indoor side end of the upper wall portion 114b. Is formed from an indoor wall portion 114c that hangs downward and a forehead portion 114d in which the lower end of the indoor wall portion 114c extends to the indoor side, so that the indoor upper member 112 directly enters the indoor space. Preventing exposure.

A windshield plate (not shown) is disposed between the outer guide rail 111a and the inner guide rail 112a of the upper frame 11 at a position above the summing portion of the inner and outer children 2 and 3. A resin upper cover member 51 that covers the lower surface of the outdoor upper member 111 of the upper frame 11 is disposed between the upper frame 11 and the left vertical frame 13, that is, on the indoor side of the outer screen 3 in the closed state.
The upper cover member 51 prevents cold heat from being directly transmitted into the room from the lower surface of the outdoor upper member 111 on the indoor side of the outer obstacle 3 when the inner and outer obstacles 2 and 3 are closed. A movable piece 51a extending in an inclined state toward the lower side on the indoor side is arranged on the lower surface on the outdoor side of the upper cover member 51.

  The lower frame 12 constituting the frame body 1 is formed of a metal material such as aluminum and has a lower frame body 121 in which outer guide rails 121a and 121b are provided on the upper surface, and a chamber for the outer guide rail 121b of the lower frame body 121. A chamber of the lower frame auxiliary member 122 arranged outside, the lower frame rail auxiliary member 123 arranged between the outer guide rails 121a and 121b in the lower frame main body 121, and the inner guide rail 121a of the lower frame main body 121. A resin lower member 124 made of resin is disposed and fixed inside.

As shown in FIG. 3, the lower frame body 121 has an outdoor portion 121c formed by a hollow portion 12a, and an outdoor member 121c extending upward after extending from the outdoor surface of the hollow portion 12a to the outdoor side. The lower frame auxiliary member 122 is disposed above the outdoor member 121c.
Between the lower frame auxiliary member 122 and the outer guide rail 121b, there is formed a guide groove 12c into which the outdoor hanging piece 321c that hangs down on the outdoor lower end of the lower arm 32 of the shoji 3 is slidably inserted in the direction of finding. Has been.

Of the lower frame body 121, the lower frame rail auxiliary member 123 disposed between the outer guide rails 121a and 121b has a substantially U-shaped cross section that opens downward, and expands on the outdoor side surface and the upper surface during a fire. A heating expansion material f is arranged. A resin cover member 125 is disposed on the upper surface of the lower frame rail auxiliary member 123.
The estimated size of the lower frame rail auxiliary member 123 is set to be smaller than the distance between the inner and outer guide rails 121a and 121b, and the inner frame is between the lower frame rail auxiliary member 123 and the inner guide rail 121a. 2 is formed with a guide groove 12b into which an outdoor hanging piece 221c that hangs down on the outdoor lower end of the lower rod 22 is slidably inserted in the direction of finding.

  The resin lower member 124 disposed on the indoor side of the inner guide rail 121a of the lower frame main body 121 hangs down from the upper wall portion 124a constituting the indoor upper surface of the lower frame 12 and the outdoor end portion of the upper wall portion 124a. The outdoor leg portion 124b, the indoor leg portion 124c hanging from the lower surface on the indoor side of the upper wall portion 124a, and the jaw portion 124d extending to the indoor side of the upper wall portion 124a, are locked to the indoor side of the inner guide rail 121a. Thus, the inner peripheral surface of the inner guide rail 121a of the lower frame main body 121 is covered. On the lower surface of the upper wall portion 124a of the resin lower member 124, a heat expansion material f that expands in the event of a fire is disposed.

The inner guide rail 121a that guides the inner shoji 2 and the outer guide rail 121b that guides the outer shoji 3 are provided with an airtight material holding groove that opens toward the outdoor side and holds the airtight material s in the upper portion of the outdoor side surface. The upper walls 121d and 121e are formed wide above the airtight material holding grooves, and the guide strips 121f and 121g for guiding the shojis 2 and 3 are projected from the upper surface.
Of the lower frame main body 121, the upper walls 121 d and 121 e of the outer guide rails 121 a and 121 b, the upper surface of the lower frame auxiliary member 122, and the resin cover member 125 disposed on the upper surface of the lower frame rail auxiliary member 123. By setting the upper surface and the upper surface of the resin lower member 124 to have substantially the same height, the upper surface of the lower frame 12 is formed to have a substantially flat shape.

As shown in FIG. 2, the left vertical frame 13 is formed of a metal material such as aluminum, and the drawing block d disposed on the door rod (left vertical rod) 33 of the outer screen 3 abuts on the inner peripheral surface. The main body member 131 provided with the attracting piece 131a and the resin left member 132 disposed and fixed on the inner peripheral surface on the indoor side of the main body member 131 are provided.
The resin left member 132 includes a main body portion 132a that is engaged with the main body member 131 and covers the inner peripheral surface on the indoor side of the left vertical frame 13, and a forehead portion 132b that extends to the indoor side of the main body portion 132a. The main body portion 132a has mounting recesses 132c that open in the inner circumferential direction at a plurality of positions in the vertical direction, and the bottom wall of the mounting recess 132c is superposed on the main body member 131. By fixing at a plurality of locations from the inner peripheral side with the fixing means b, the fixing means b is firmly attached to the opening of the building.
The mounting recess 132c is fitted with a resin cap 132d, so that the cold heat transmitted to the fixing means such as screws via the body member 131 of the left vertical frame 13 made of aluminum or the like is transmitted into the room. This suppresses the deterioration of the design due to the head of the fixing means b such as a screw being exposed to the room.
In addition, you may comprise the attachment recessed part 132c as a groove part which continues in the longitudinal direction (up-down direction) of the resin left member 132. FIG.

The right vertical frame 14 is formed of a metal material such as aluminum, and a pulling piece 141a with which a pulling block d disposed on a door rod (right vertical rod) 24 of the inner shoji 2 contacts is provided on the inner peripheral surface. The main body member 141 and the resin right member 142 disposed and fixed on the inner peripheral surface on the indoor side of the main body member 141 are configured.
The resin right member 142 includes an attachment portion 142a engaged with the main body member 141, an indoor wall portion 142b extending in the inner circumferential direction from the indoor side end of the attachment portion 142a, and an indoor side from the inner peripheral side end of the indoor wall portion 142b. It is composed of a forehead portion 142c that extends to the main body member 141, and is fixed at a plurality of locations from the inner periphery side by means of fixing means b such as screws that penetrate both of them. It is firmly attached to the opening.

(Composition of shoji)
As shown in FIG. 1, the upper collar 21 of the inner shoji 2 is formed on a room-side upper collar 211 formed of a metal material such as aluminum and having a hollow portion 211 a and a resin material or the like and having a hollow portion 212 a. It is configured as a composite kite composed of the collar unit 212. A guide groove 21 a guided by an inner guide rail 112 a formed on the upper frame 11 is formed on the outer periphery of the outdoor upper collar portion 211, and the outdoor outer collar portion is disposed on the inner periphery of the upper collar 21. A panel opening 21b is formed by 211 and the indoor side upper collar 212.
An airtight material that is in contact with or close to the inner guide rail 112a is attached to the outdoor upper end and the indoor upper end of the guide groove 21a, so that the space between the upper frame 11 and the upper rod 21 is airtight. This prevents the outside air from entering the room directly between the upper surface of the upper frame 11 and the lower surface of the upper frame 11 to improve the heat insulating performance of the sash.
In addition, on the indoor side surface and bottom surface of the guide groove 21a, a heat expansion material that expands by heating is disposed.

The lower collar 22 of the inner shrub 2 is made of a metal material such as aluminum, and has an outdoor lower collar 221 having an upper hollow part 221a and a lower hollow part 221b, and an indoor lower lower collar part formed of a resin or the like and having a hollow part 222a. 222 is configured as a composite rod, and a guide groove 22a is formed on the outer periphery of the lower rod 22, and a door wheel a running on the inner guide rail 121a formed on the lower frame 12 is disposed, On the inner periphery of the lower collar 21, a panel opening 22 b is formed by an outdoor lower collar 221 and an indoor lower collar 222.
As shown in FIGS. 1 and 3, the outdoor side of the outdoor lower collar 221 is extended downward from the lower end of the door wheel a to form an outdoor hanging piece 221c. It is inserted into the guide groove 12b between the lower frame rail auxiliary member 123 and the inner guide rail 121a, and is in contact with the airtight material s disposed on the outdoor side surface of the inner guide rail 121a.

As shown in FIG. 2, the door toe cage (right vertical rod) 24 of the inner shoji 2 is formed of a metal material such as aluminum and has an outdoor door toe collar 241 having a hollow portion 241 a and a hollow formed from a resin or the like. It is comprised as a compound fence which consists of the indoor side door-end collar part 242 which has the part 242a.
A pulling block d that abuts on a pulling piece 141 a formed on the right vertical frame 14 is installed on the outer periphery of the door toe fence (right vertical fence) 24. A panel front opening 24b is formed around the periphery by the outdoor-side door-end flange 241 and the indoor-side door-end flange 242.
An airtight material that comes into contact with the attracting piece 141a when the inner shoji 2 is closed is attached to the outer peripheral end of the outdoor doorside collar 241. The sash is sealed between the right vertical frame 14 and the doorframe 24. The heat insulation performance is improved.

A summoning cage (left vertical gutter) 23 of the inner shoji 2 is an indoor summoning unit having a hollow portion 232a formed of a metal material such as aluminum and having a hollow portion 231a and a hollow portion 232a. It is made up of a collar part 232, and the indoor side summoning part 232 is engaged so as to cover the indoor side surface and the outer peripheral surface of the outdoor side summoning part 231, that is, the surface exposed to the room when the shoji is closed, as a composite saddle It is configured.
On the inner periphery of the summon bowl (left vertical bowl) 23, a panel opening 23 b is formed by an outdoor summit bowl 231 and an indoor summit bowl 232.
A crescent lock 81 is attached to the outer peripheral surface of the summon bowl (left vertical bowl) 23, and a smoke return piece is formed on the outdoor side face of the outdoor summit bowl 231. The smoke return c is configured in cooperation with the smoke return pieces formed on the 34 indoor side surfaces.

The external shoji 3 is different from the inner shoji 2 in the configuration of the sumo spear 34 (right vertical spade), and is otherwise substantially the same as the inner shoji 2, so only the summon spear 34 will be described. A description of the other shoji 3 is omitted.
The summon cage (right vertical rod) 34 of the external shoji 3 is formed of a metal material such as aluminum and has a hollow portion 34a, and a panel opening 34b is formed on the inner periphery of the hollow portion 34a.
An airtight material s that abuts the outer surface of the summon cage (left longitudinal rod) 23 of the inner shoji 2 is attached to the outer peripheral end of the indoor side surface of the summon cage (right longitudinal rod) 34. The heat insulation performance of the sash is improved by preventing the outside air from entering the room directly between the summon bowl 34 and the summon bowl 23 of the inner shoji 2.
In addition, a crescent receiver 82 is attached to the indoor side surface of the summon bowl (right vertical bowl) 34.

(Fireproof structure with reinforcing material)
In the fire protection sash of the present embodiment, the shape of the joinery is maintained in the hollow portion of the lower frame 12 where the weight of the joinery is applied, and in the hollow portion of the vertical fence material constituting the inner shoji 2 and the outer shoji 3, in the event of a fire. A reinforcing member is arranged. This will be described below.
-Bottom frame-
As shown in FIG. 3, in the hollow portion 12a of the lower frame 12, a reinforcing member 912 made of steel or aluminum alloy is fixed and arranged on the upper surface of the hollow portion 12a.
The reinforcing member 912 includes an upper wall portion 912a fixed to the upper surface of the hollow portion, an outdoor side wall portion 912b continuous to the outdoor side end of the upper wall portion 912a, and a bottom wall portion 912c continuous in the indoor direction from the lower end of the outdoor side wall portion 912b. And an indoor side wall portion 912d continuous downward from the indoor side end of the upper wall portion 912a. The indoor side surface above the outdoor side wall portion 912b and the outdoor side surface at the lower position are expanded by heating. The heating expansion material f is arranged so as to face the drainage channel and the like, and the communication of flames and smoke inside and outside the room is prevented by closing the drainage channel and the like in the event of a fire.
An auxiliary member 912e having a substantially L-shaped cross section is attached to the indoor side wall portion 912d, and a heating expansion material f that expands by heating is disposed on the upper surface of the auxiliary member 921e.

-Totochi-
As shown in FIG. 2, inside the hollow portions 241a and 331a of the outdoor doorside flange portions 241 and 331 of the doorside rods 24 and 33 of the inner and outer shoji 2, 3 are steel or aluminum alloy along the longitudinal direction. The reinforcing members 924 and 933 are arranged, and the glass slip-off preventing member made of a metal material and disposed in the panel opening 24b of the door toe cage 24 of the inner door 2 and the panel of the door toe 33 of the outer door 3 Each is fixed to a glass detachment preventing member made of a metal material disposed in the front opening 33b by a fixing means such as a screw.

-Summoning-
A reinforcing member 923 made of steel or aluminum alloy or the like and having a substantially U-shaped cross section is disposed along the longitudinal direction in the hollow portion 231a of the summon 23 of the inner shoji 2 with the opening facing the outdoor side. In addition, one side wall portion having a substantially U-shaped cross section is fixed to a glass detachment preventing member made of a metal material disposed in the panel opening 23b of the summing cage 23 of the inner shoji 2 by a fixing means such as a screw.
Further, a reinforcing member 934 made of steel or aluminum alloy or the like and having a substantially U-shaped cross section is disposed along the longitudinal direction in the hollow portion 34a of the summoning cage 34 of the external shoji 3 with the opening facing the indoor side. The inner peripheral side wall portion 934b having a substantially U-shaped cross section is fixed to a glass slip-off preventing member made of a metal material disposed in the panel opening 34b of the summoning cage 34 of the external shoji 3 by fixing means such as a screw. ing.
On the bottom surfaces of the reinforcing members 923 and 934, a heat expansion material f that expands in the event of a fire is disposed.

-Shimojo-
As shown in FIG. 1, inside the upper hollow portions 221 a and 321 a of the outdoor outer lower flange portions 221 and 321 of the lower flanges 22 and 32 of the inner and outer obstacles 2 and 3 are made of steel or aluminum alloy along the longitudinal direction. The substantially U-shaped reinforcing member is disposed with the opening portion facing the indoor side, and the lower hollow portions 221b and 321b of the outdoor lower lower flange portions 221 and 321 are not located in the portion where the door wheel a does not exist. In addition, reinforcing members 922 and 932 having a substantially U-shaped cross section made of steel, aluminum alloy, or the like are disposed along the longitudinal direction with the opening portion facing the indoor side.

(Door cart protection means)
As described above, in the fire protection sash of the present embodiment, the reinforcing members are disposed in the vertical frame of the lower frame 12 and the shoji 2 and the hollow portion of the lower shovel to maintain the shape of the shoji 2 and 3 in the event of a fire. In addition to delaying the indoor and outdoor smoke communication, it also prevents the spread of fire due to the communication of flames.
However, in recent fittings, a lot of resin members are used as members such as shoji doors from the viewpoint of weight reduction and heat insulation. There is a possibility that it may fall off and come off from the frame body, or even if it does not come off, it will be displaced to create a gap and spread.

Therefore, in the fire protection sash of this embodiment, by providing a door protection means for protecting the door in the event of a fire on the inner rods 22 and 32 of the inner and outer obstacles 2 and 3, It is possible to prevent the outer guide rails 121a and 121b from falling off and maintain the fireproof performance over a long period of time.
Hereinafter, the door protection means for the joinery in the present embodiment will be described using the door protection means for protecting the door on the door side of the lower arm 32 of the shoji 3.

The door protection means 6 in the joinery of the present embodiment is formed on both sides in the direction of finding the door wheel a disposed in the guide groove in the vicinity of the left and right vertical fences of the lower arm of the shoji.
As shown in FIG. 4A, for example, the door protector 6 disposed on one side (door tip side) of the external shoji 3 is a sealer 61 disposed on the joint surface between the vertical rod 33 and the lower rod 32. It is constituted by.
The sealer 61 is formed of a material that expands when heated, and is disposed on the inner peripheral surface with which the end surface of the lower collar 32 of the door toe bar 33 contacts, and covers the lower end position of the inner peripheral surface of the door toe bar 33. In this way, they are arranged by means such as adhesion.
The sealer 61 is provided with a screw hole for inserting a screw for fixing the lower rod 32 and an adjustment hole for adjusting the height of the door wheel a.

On the other hand, the door protection means 6 formed on the other side (calling side) of the door wheel a is, for example, in the lower hollow portion 321b of the outdoor lower wall portion 321 of the lower wall 32 as shown in FIG. Specifically, the reinforcing member 932 is disposed at the end of the reinforcing member 932 and is fixed to the end of the reinforcing member 932. Specifically, the reinforcing member 932 includes a refractory material holding member 62 having a heat expansion material.
As shown in FIGS. 5A and 5B, the refractory material holding member 62 is formed of a plate material made of a metal material such as steel or aluminum alloy, and is fixed to the reinforcing member 932 by fixing means such as screws. And a refractory material holding surface 62b formed to bend and extend from the fixed portion 62a. The bent portion is inclined with respect to the perpendicular.

  Therefore, as shown in FIGS. 5C and 5D, in a state where the fixing portion 62a of the refractory material holding member 62 is fixed to the finding surface 932a of the reinforcing member 932 by fixing means such as a screw, the refractory material holding member. The refractory material holding surface 62b of 62 is arranged so as to be slightly downward with respect to the horizontal direction, and the heated expansion material f arranged on the refractory material holding surface 62b is slightly against the door wheel a facing at the time of expansion. It will expand to go downward.

As described above, the door wheel a disposed on the lower arm of the shoji is made of a heat expansion material disposed on the inner peripheral surface of the vertical shaft 33 as shown in FIG. The heat expansion material f of the refractory material holding member 62 fixed to the end of the sealer 61 and the reinforcing member 932 disposed in the lower hollow portion 321b of the lower rod 32 is disposed. It is sandwiched from both sides of the direction.
In a fire, as shown in FIG. 6, the sealer 61 made of a heated expansion material and the heated expansion material f of the refractory material holding surface 62b expand by heating, so that the door wheel a is covered from both sides in the traveling direction. It can prevent that the flame of a fire contacts the resin part of the door pulley a, and can suppress that the resin part of the door wheel a melt | dissolves at an early stage.
Here, the sealer 61 made of the heat expansion material is disposed up to the lower end position of the inner peripheral surface of the lower collar 32 of the door rod 33, and the heat expansion material f of the refractory material holding surface 62b expands slightly downward. Therefore, the sealer 61 and the heated expansion material f, which are made of the expanded thermal expansion material, expand so as to reach the gap between the wheel of the door wheel a and the lower rail, and cover the lower part of the wheel a. Can do.

As mentioned above, the thermal expansion which expanded the resin door pulley a at the time of a fire by arrange | positioning the door roller protection means which consists of a heating expansion material on the both sides of the finding direction of the door roller a arrange | positioned in the guide groove of the lower arm of a shoji It can be covered from the direction of finding by the material, and it is possible to protect the door pulley a by suppressing the molten door wheel a from flowing down in the expected direction.
Moreover, since it covers from the direction of finding, the heating expansion material can enter from a direction that is widely open with respect to the narrow space between the wheel and the rail, so that the heating expansion material is easily filled into a narrow portion. , Can cover and protect the door pulley reliably.
Furthermore, by forming the door protection means arranged on the door end side of the door wheel with a sealer made of a heating expansion material arranged on the joint surface of the lower armpit and the vertical fence, no special member is required and the door protection means is provided. Further, the door protection means arranged on the summit side of the door carriage is fixed to the end of the reinforcement member arranged in the hollow part of the lower arm, thereby providing the attachment of the reinforcement member and the door protection means. Can be performed simultaneously, and workability and the like are not reduced.

  In addition, this invention is not limited to the flat rail type sliding joinery employ | adopted in the said embodiment, If it is a joinery arrange | positioned slidably with respect to the rail formed in the lower frame Any joinery may be used, and the construction of the joinery itself is not limited at all.

1: Frame 11: Upper frame 12: Lower frame 12a: Hollow portion 12b: Guide groove 12c: Guide groove 121: Lower frame main body 121a: Inner guide rail 121b: Outer guide rail 121c: Outdoor member 121d: Upper wall 121e: Upper wall 121f: guide strip 121g: guide strip 122: lower frame auxiliary member 123: lower frame rail auxiliary member 124: resin lower member 124a: upper wall portion 124b: outdoor side leg portion 124c: indoor side leg portion 124d: jaw portion 125: Resin cover member 13: Left vertical frame 14: Right vertical frame 2: Inner shoji 3: External shoji 21: Upper collar 21a: Guide groove 22: Lower collar 22a: Guide groove 221: Outdoor lower collar 221a: Upper hollow Part 221b: Lower hollow part 221c: Outdoor hanging piece 222: Indoor side lower flange part 222a: Hollow part 23: Left vertical gutter (summit bowl)
24: Right vertical gutter (toe gutter)
31: Upper rod 32: Lower rod 321: Outdoor lower rib portion 321a: Upper hollow portion 321b: Lower hollow portion 321c: Outdoor hanging piece 33: Left vertical rod (door rod)
34: Right downside (summoning)
6: Door protection means 61: Sealer 62: Refractory material holding member 62a: Fixed portion 62b: Refractory material holding surface 81: Crescent lock 82: Crescent receptacle 932: Reinforcing member 932a: Finding surface

Claims (1)

It has a frame placed in the opening of the building, and a shoji that has a resin door on the lower arm and can be opened and closed in the frame.
A joinery characterized in that a heating expansion material that expands toward the door in the event of a fire is provided at both sides in the running direction of the door under the shoji.

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