JP6682418B2 - Fire sash - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a fire protection fitting arranged in a building opening.

  In a fitting having a shoji that is arranged so that it can be pulled along the rails provided in the building opening, by arranging the thermally expandable member on the side wall of the lower frame, even when the door roller melts during a fire, There is a publicly known fitting which can prevent a gap from being formed between the lower frame and the lower frame. (Patent Document 1).

JP-A-2014-66104

  However, in the fitting of Patent Document 1, since the heat-expandable member is arranged on one side in the prospective direction with respect to the door roller, the door wheel melted by the expansion of the heat-expandable member is placed on the indoor side or the outdoor side. It could flow in and ignite, causing fire to spread.

  In view of the above circumstances, it is an object of the present invention to wrap a door roller to suppress ignition and prevent fire spread while preventing a molten door roller from flowing inside or outside during a fire.

  The present invention is provided with a frame body arranged in a building opening, and a shoji that has a door carriage made of resin in a lower frame and is openably and closably arranged in the frame body. Is provided with a heat-expandable material that expands toward the door roller 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 roller arranged in the lower frame of the shoji from the locating direction by the heat-expanding material, so that the door wheel is prevented from flowing down to the indoor side or the outdoor side, and at the lower surface of the shoji. By securely wrapping it, it is possible to suppress the spread of fire due to ignition of the door roller.

It is a longitudinal cross-sectional view of the fire sash according to the embodiment of the present invention. It is a cross-sectional view of a fire sash according to an embodiment of the present invention. FIG. 3 is an enlarged vertical sectional view of a lower frame portion of the fire sash according to the embodiment of the present invention in a normal state. It is a figure for demonstrating the door-roller protection means arrange | positioned at the lower frame of the fire prevention sash which concerns on embodiment of this invention, (a) is an exploded perspective view of the connection part of a vertical frame and a lower frame, (b) is. It is a figure which shows the arrangement | positioning state of the door-roller protection means with respect to the door-roller arrange | positioned at the lower frame. It is a figure for demonstrating the door-roller protection means arrange | positioned at the lower frame of the fireproof sash which concerns on embodiment of this invention, (a) is a top view of the fireproof material holding member which is door-door protection means, (b) is the same. A side view, (c) is the same front view, (d) is a top view of the state attached to the reinforcing member of the lower frame, and (e) is the same plan view. It is a figure for demonstrating the door-roller protection means of the fire sash which concerns on embodiment of this invention, (a) is a front view of the junction part of a lower frame and a vertical frame of a shoji of a normal state, (b) is at the time of a fire. It is a front view of the junction part of a lower frame and a vertical frame of a shoji.

A fire sash according to an embodiment of the present invention will be described with reference to the drawings.
(Overall structure)
A fire sash according to an 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 on four sides. The body 1, the upper frame 21, 31, the lower frame 22, 32, the left vertical frame 23, 33 and the right vertical frame 24, 34 are assembled into four circumferences, and the panel body is fitted into the inner circumference thereof. , 3, and is formed as a sliding sash by supporting the inner and outer shoji 2, 3 along the inner and outer guide rails formed on the frame 1 so as to be movable in the left-right direction.
The fire sash of the present invention is not limited to the pulling sash, and may be any type of sash as long as the shoji opens and closes the window frame, such as a pulling window.

(Frame structure)
As shown in FIG. 1, an upper frame 11 constituting the frame body 1 includes an outdoor upper member 111 having a hollow portion formed of a metal material such as aluminum, 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 arranged and fixed on the inner circumference of the lower surface of the indoor upper member 112. The upper resin member 114 is formed.
An outer guide rail 111a for guiding the outer shoji 3 is hung on the lower surface of the outdoor upper member 111 near the outdoor side, and the inner shoji 2 is guided to the lower surface of the outdoor side end 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 end of the upper wall portion 114b. Is formed of an indoor wall 114c formed by hanging downward and a forehead 114d formed by extending the lower end of the indoor wall 114c toward the indoor side, and the indoor upper member 112 is directly connected to the indoor space. Prevents exposure.

A wind stop plate (not shown) is arranged above the assembly portion of the inner shoji screen 2 and the outer shoji screen, and between the outer guide rail 111a and the inner guide rail 112a of the upper frame 11, and the wind stop plate is provided. A resin upper cover member 51 that covers the lower surface of the outdoor upper member 111 of the upper frame 11 is arranged between the left vertical frame 13 and the left vertical frame 13, that is, on the indoor side of the shoji 3 in the closed state.
The upper cover member 51 prevents cold heat from being directly transmitted to the room from the lower surface of the outdoor upper member 111 on the indoor side of the outer shoji 3 when the inner and outer shoji 2, 3 are closed. A movable piece 51a is arranged on the lower surface on the outdoor side of the upper cover member 51 so as to extend downward in the indoor direction in an inclined state.

  The lower frame 12 constituting the frame body 1 is formed of a metal material such as aluminum and has a lower frame main body 121 provided with inner and outer guide rails 121a and 121b on the upper surface, and a chamber of the outer guide rail 121b of the lower frame main body 121. 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 inside the lower frame body 121, and the inner guide rail 121a of the lower frame body 121. It is provided with a resin lower member 124 which is arranged and fixed inside.

As shown in FIG. 3, the lower frame main body 121 has an outdoor portion formed by a hollow portion 12a, and an outdoor member 121c extending from the outdoor surface of the hollow portion 12a to the outdoor side and then extending upward is provided. The lower frame auxiliary member 122 is arranged above the outdoor member 121c.
A guide groove 12c is formed between the lower frame auxiliary member 122 and the outer guide rail 121b, and an outdoor side hanging piece 321c that hangs on the lower outdoor side of the lower frame 32 of the shoji 3 is slidably inserted in the finding direction. Has been done.

The lower frame inter-rail auxiliary member 123 arranged between the outer guide rails 121a and 121b in the lower frame body 121 has a substantially U-shaped cross-section that opens downward and expands on the outdoor side surface and the upper surface when a fire occurs. The heat expansion material f is disposed. Further, a resin cover member 125 is arranged on the upper surface of the lower frame rail-to-rail auxiliary member 123.
The estimated size of the lower frame rail-to-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 sliding screen is set between the lower frame-to-rail inter-rail auxiliary member 123 and the inner guide rail 121a. A guide groove 12b into which an outdoor-side hanging piece 221c that hangs down from the lower outdoor side of the lower frame 22 of 2 is slidably inserted in the finding direction is formed.

  The resin lower member 124 disposed on the indoor side of the inner guide rail 121a of the lower frame body 121 hangs from the upper wall portion 124a that constitutes the indoor upper surface of the lower frame 12 and the outdoor side end portion of the upper wall portion 124a. The outdoor side leg portion 124b, the indoor side leg portion 124c hanging from the indoor side lower surface of the upper wall portion 124a, and the jaw portion 124d extending toward the indoor side of the upper wall portion 124a are locked to the indoor side of the inner guide rail 121a. That is, the inner side inner peripheral surface of the inner guide rail 121a of the lower frame 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 arranged.

The inner guide rail 121a for guiding the inner shoji screen 2 and the outer guide rail 121b for guiding the outer shoji screen 3 are provided with an airtight material holding groove for opening the airtight material s in the upper part of the outdoor surface to open to the outdoor side. Upper walls 121d and 121e are formed wide above the airtight material holding groove, and guide strips 121f and 121g for guiding the outer shoji 2 and 3 are provided on the upper surface in a protruding manner.
Then, of the lower frame main body 121, the upper walls 121d and 121e of the outer guide rails 121a and 121b, the upper surface of the lower frame auxiliary member 122, and the resin cover member 125 arranged on the upper surface of the lower frame inter-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 pulling block d arranged on the door end frame (left vertical frame) 33 of the outer shoji 3 contacts the inner peripheral surface thereof. It has a main body member 131 provided with a pulling piece 131a and a resin left member 132 arranged and fixed on the inner peripheral surface of the main body member 131 on the indoor side.
The resin left member 132 includes a main body portion 132a that is engaged with the main body member 131 and covers the indoor side inner peripheral surface of the left vertical frame 13, and a forehead portion 132b that extends toward 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 in the state where the bottom wall of the mounting recesses 132c is superposed on the main body member 131, a screw or the like penetrating the two It is firmly attached to the opening of the building by being fixed at a plurality of positions from the inner peripheral side by the fixing means b.
By mounting the resin cap 132d in the mounting recess 132c, the cold heat transmitted to the fixing means such as a screw via the main body member 131 of the left vertical frame 13 made of aluminum or the like is transmitted to the room. This suppresses deterioration of the design due to the head of fixing means b such as a screw being exposed to the room.
The mounting recess 132c may be configured as a groove that is continuous in the longitudinal direction (vertical direction) of the left resin member 132.

The right vertical frame 14 is formed of a metal material such as aluminum, and has an inner peripheral surface provided with a pulling piece 141a with which the pulling block d arranged on the door end frame (right vertical frame) 24 of the inner shoji 2 contacts. The main body member 141 and the resin right member 142 arranged and fixed to the inner peripheral surface of the main body member 141 on the indoor side.
The resin right member 142 includes a mounting portion 142a that is engaged with the main body member 141, an indoor wall portion 142b that extends in the inner circumferential direction from the indoor side end of the mounting portion 142a, and an indoor side from the inner circumferential side end of the indoor wall portion 142b. In the state where the mounting portion 142a is engaged with the main body member 141, the fixing portion b such as a screw penetrating both of them is fixed at a plurality of positions from the inner peripheral side. It is firmly attached to the opening.

(Structure of shoji)
As shown in FIG. 1, the upper frame 21 of the inner shoji 2 has an outdoor upper frame part 211 formed of a metal material such as aluminum and having a hollow part 211a, and an upper indoor side having a hollow part 212a formed of a resin material or the like. It is configured as a composite frame including the frame part 212. A guide groove 21a guided by an inner guide rail 112a formed on the upper frame 11 is formed on the outer periphery of the outdoor upper frame portion 211, and the outdoor upper frame portion is formed on the inner periphery of the upper frame 21. A panel frontage 21b is formed by 211 and the indoor upper frame portion 212.
Airtight materials that are in contact with or close to the inner guide rails 112a are attached to the outdoor upper end and the indoor upper end of the guide groove 21a, and the upper frame 21 and the upper frame 21 are airtightly sealed. The outside air is prevented from directly entering the room through the space between the upper surface of the sash and the lower surface of the upper frame 11 to improve the heat insulating performance of the sash.
In addition, a heat expansion material that expands by heating is arranged on the inner side surface and the bottom surface of the guide groove 21a.

The lower frame 22 of the inner shoji 2 has an outdoor lower frame 221 formed of a metal material such as aluminum and having an upper hollow part 221a and a lower hollow part 221b, and an indoor lower frame part having a hollow part 222a formed of resin or the like. It is configured as a composite frame composed of 222 and a door frame a which is formed on the outer periphery of the lower frame 22 and runs on an inner guide rail 121a formed on the lower frame 12, and A panel opening 22b is formed on the inner circumference of the lower frame 21 by the outdoor lower frame part 221 and the indoor lower frame part 222.
As shown in FIGS. 1 and 3, the outdoor side of the outdoor side lower frame portion 221 is extended below the lower end of the door roller a to form an outdoor side hanging piece 221c, and the outdoor side hanging piece 221c is It is inserted into the guide groove 12b between the lower frame interrail auxiliary member 123 and the inner guide rail 121a, and is in contact with the airtight material s arranged on the outdoor side surface of the inner guide rail 121a.

As shown in FIG. 2, the door sill (right vertical sill) 24 of the inner shoji 2 has an outdoor door sill 241 having a hollow portion 241a made of a metal material such as aluminum, and a hollow made of resin or the like. It is configured as a composite frame including an indoor side door end frame part 242 having a part 242a.
A pulling block d that abuts a pulling piece 141a formed on the right vertical frame 14 is installed on the outer periphery of the door end frame (right vertical frame) 24, and inside the door end frame (right vertical frame) 24. A panel frontage 24b is formed on the periphery by the outdoor side door sill portion 241 and the indoor side door stile portion 242.
An airtight member that abuts the pulling piece 141a when the inner shoji 2 is closed is attached to the outer peripheral end of the outdoor side door sill portion 241 so that the space between the right vertical frame 14 and the door sill 24 is airtight. The heat insulation performance of is improved.

The fitting frame (left vertical frame) 23 of the inner shoji 2 is an interior fitting having an outdoor side fitting frame part 231 formed of a metal material such as aluminum and having a hollow part 231a and a hollow part 232a formed of resin or the like. And a frame part 232, and the indoor side frame part 232 is engaged so as to cover the indoor side surface and the outer peripheral surface of the outdoor side frame part 231; that is, the surface exposed to the room when the shoji is closed. It is configured.
A panel frontage 23b is formed on the inner circumference of the calling frame (left vertical frame) 23 by the outdoor side calling frame part 231 and the indoor side calling frame part 232.
A crescent lock 81 is attached to the outer peripheral surface of the calling frame (left vertical frame) 23, and a smoke return piece is formed on the outdoor side surface of the outdoor side calling frame part 231. The smoke-returning piece c is formed in cooperation with the smoke-returning piece formed on the indoor side surface of 34.

The outer shoji 3 is different from the inner shoji 2 in the configuration of the calling frame (right vertical frame) 34, and is otherwise substantially the same as the inner shoji 2, so only the calling frame 34 will be described. A description of other frames of the shoji screen 3 will be omitted.
The summing frame (right vertical frame) 34 of the shoji screen 3 has a hollow portion 34a formed of a metal material such as aluminum, and a panel front opening 34b is formed on the inner periphery of the hollow portion 34a.
An airtight material s that is in contact with the outdoor side surface of the summing frame (left vertical frame) 23 of the inner shoji 2 is attached to the outer peripheral end of the indoor side surface of the summing frame (right vertical frame) 34, and The outside air is prevented from directly entering the room through a space between the calling frame 34 and the calling frame 23 of the inner shoji 2 to improve the heat insulating performance of the sash.
Further, a crescent receiver 82 is attached to the inside surface of the calling frame (right vertical frame) 34.

(Fireproof structure with reinforcing material)
In the fire sash of this embodiment, for maintaining the shape of the fitting in the hollow portion of the lower frame 12 to which the weight of the fitting is applied, and in the hollow portion of the vertical frame member forming the inner shoji 2 and the outer shoji 3, in case 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, aluminum alloy, or the like 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 with an outdoor side end of the upper wall portion 912a, and a bottom wall portion 912c continuous with the lower end of the outdoor side wall portion 912b in the indoor direction. And an indoor side wall 912d that is continuous downward from the indoor side end of the upper wall 912a. The indoor side surface at the upper position and the outdoor side surface at the lower position of the outdoor side wall 912b are expanded by heating. The heat-expandable material f is disposed so as to face the drainage channel and the like, and blocks the drainage channel and the like in the event of a fire, thereby preventing communication of flames and smoke inside and outside the room.
Further, an auxiliary member 912e having a substantially L-shaped cross section is attached to the indoor side wall portion 912d, and a heat expansion material f which is expanded by heating is arranged on the upper surface of the auxiliary member 921e.

-Door frame-
As shown in FIG. 2, inside the hollows 241a and 331a of the outdoor door sill portions 241 and 331 of the door stiles 24 and 33 of the inner and outer shoji screens 2 and 3, steel or aluminum alloy or the like is provided along the longitudinal direction. Glass reinforcing members 924 and 933 made of metal are placed in the front panel frame 24b of the door frame 24 of the inner shoji 2 and a glass stopper member made of a metal material, and a panel of the door frame 33 of the shoji screen 3. It is fixed to the glass detachment preventing member made of a metal material, which is arranged in the frontage 33b, by fixing means such as screws.

-Call frame-
In the hollow portion 231a of the summing frame 23 of the inner shoji 2, a reinforcing member 923 made of steel or aluminum alloy or the like and having a substantially U-shaped cross section is arranged along the longitudinal direction with the opening facing the outdoor side. One side wall portion having a substantially U-shaped cross section is fixed to a glass slip-off preventing member made of a metal material, which is arranged in the panel opening 23b of the fitting frame 23 of the inner shoji 2 by a fixing means such as a screw.
In addition, a reinforcing member 934 made of steel, aluminum alloy, or the like and having a substantially U-shaped cross section is arranged along the longitudinal direction in the hollow portion 34a of the fitting frame 34 of the shoji screen 3 with the opening facing the indoor side. The inner peripheral side wall portion 934b having a substantially U-shaped cross section is fixed by a fixing means such as a screw to a glass slip-off preventing member made of a metal material, which is arranged in the panel front opening 34b of the fitting frame 34 of the outer shoji 3. 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 arranged.

− Lower frame −
As shown in FIG. 1, inside the upper hollow portions 221a and 321a of the lower outer frame members 221 and 321 of the lower frames 22 and 32 of the inner and outer shoji screens 2 and 3, along the longitudinal direction, steel or aluminum alloy is used. A reinforcing member having a substantially U-shaped cross section is arranged with its opening facing toward the indoor side, and the lower hollow parts 221b, 321b of the outdoor lower frame parts 221 and 321 do not have a door roller a at a position. Along the lengthwise direction, reinforcing members 922 and 932 made of steel, aluminum alloy, or the like and having a substantially U-shaped cross section are arranged with their openings facing the indoor side.

(Door protection means)
As described above, in the fire sash of the present embodiment, the reinforcing members are arranged in the vertical frame of the lower frame 12 and the shoji 2 and in the hollow portion of the lower frame to maintain the shapes of the shoji 2 and 3 during a fire. In addition to delaying the communication of indoor and outdoor smoke, the spread of fire due to the communication of flames is suppressed.
However, in recent years, from the viewpoint of weight reduction and heat insulation, resin members are often used as members such as shovel doors, and resin members such as shovel doors are melted during a fire and shoji slides from the rails. There is a possibility that it may fall off and come off from the frame, or even if it does not come off, a gap may occur and a fire may spread.

Therefore, in the fireproof sash of the present embodiment, by providing the lower frame 22, 32 of the inner and outer shoji 2, 3 with door roller protection means for protecting the door roller in case of a fire, The fallout from the outer guide rails 121a and 121b is prevented, and the fireproof performance can be maintained for a long period of time.
Hereinafter, the door roller protecting means of the fitting in the present embodiment will be described by using the door roller protecting means for protecting the door roller on the door end side of the lower frame 32 of the shoji screen 3.

The door roller protecting means 6 in the fitting of the present embodiment is formed on both sides in the finding direction of the door roller a arranged in the guide groove near the left and right vertical frames of the lower frame of the shoji.
The door roller protection means 6 arranged on one side (door end side) of the shoji screen 3 is, for example, as shown in FIG. 4A, a sealer 61 arranged on a joint surface between the vertical frame 33 and the lower frame 32. It is composed by.
The sealer 61 is made of a material that expands by heating, is disposed on the inner peripheral surface with which the end surface of the lower frame 32 of the door end frame 33 contacts, and covers the lower end position of the inner peripheral surface of the door end frame 33. Are arranged by means such as adhesion.
The sealer 61 is provided with a screw hole for inserting a screw for fixing the lower frame 32 and an adjustment hole for adjusting the height of the door roller a.

On the other hand, the door roller protection means 6 formed on the other side (combination side) of the door roller a is, for example, in the lower hollow portion 321b of the outdoor lower frame portion 321 of the lower frame 32, as shown in FIG. Is provided at the end of the reinforcing member 932 in the finding direction, specifically, is fixed to the end of the reinforcing member 932 and is constituted by a refractory material holding member 62 having a heat-expanding 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 a fixing means such as a screw. And a refractory holding surface 62b formed by bending and extending from the fixing portion 62a, and the bent portion is formed to be inclined with respect to the perpendicular.

  Therefore, as shown in FIGS. 5C and 5D, when the fixing portion 62a of the refractory material holding member 62 is fixed to the finding surface 932a of the reinforcing member 932 by a 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 directed slightly downward with respect to the horizontal direction, and the heat-expandable material f arranged on the refractory material holding surface 62b is slightly a little with respect to the door roller a that is opposed at the time of expansion. It will expand downward.

In this way, the door roller a arranged on the lower frame of the shoji is made of a heat-expandable material arranged on the inner peripheral surface of the vertical frame 33 at both positions in the traveling direction, as shown in FIG. 4B. The sealer 61 and the heat-expandable material f of the refractory material holding member 62 fixed to the end of the reinforcing member 932 arranged in the lower hollow portion 321b of the lower frame 32 are arranged. It is sandwiched from both sides in the direction.
Then, at the time of fire, as shown in FIG. 6, the sealer 61 made of a heat-expandable material and the heat-expandable material f of the refractory material holding surface 62b are expanded by heating, so that the door roller a is covered from both sides in the traveling direction. It is possible to prevent the flame of a fire from coming into contact with the resin portion of the door roller a, and to prevent the resin portion of the door roller a from prematurely melting.
Here, the sealer 61 made of a heat expansion material is arranged up to the lower end position of the inner peripheral surface of the lower frame 32 of the door end frame 33, and the heat expansion material f of the refractory material holding surface 62b expands slightly downward. The sealer 61 and the heat-expandable material f, which are made of heat-expandable material that expands, expand to reach the gap between the wheel of the door roller a and the lower rail, and cover the lower part of the wheel a. You can

As described above, by arranging the door roller protection means made of the heat expansion material on both sides of the door roller a arranged in the guide groove of the lower frame of the shoji screen in the finding direction, the door roller a made of resin is expanded by heat in the event of fire. It can be covered with the material from the finding direction, and the melted door roller a can be prevented from flowing down in the prospective direction and the door roller a can be protected.
In addition, since the covering from the finding direction allows the heating expansive material to enter from a direction that is wide open to the narrow space between the wheel and the rail, it is easy to fill the narrow part with the heating expansive material. , The door roller can be surely covered and protected.
Furthermore, by forming the door roller protection means arranged on the door end side of the door roller by a sealer made of a heat-expandable material arranged on the joint surface between the lower frame and the vertical frame, a door roller protection means can be provided without any special member. Further, the door roller protecting means, which can be provided on the assembly side of the door roller, is fixed to the end portion of the reinforcing member arranged in the hollow portion of the lower frame so that the reinforcing member can be attached and the door roller protecting means. Can be performed at the same time, and the workability and the like will not be deteriorated.

  It should be noted that the present invention is not limited to the flat rail-type sliding fittings used in the above-described embodiment, and any fittings slidably arranged with respect to the rail formed on the lower frame can be used. Any fitting may be used, and the structure of the fitting itself is not limited.

1: Frame 11: Upper frame 12: Lower frame 12a: Hollow part 12b: Guide groove 12c: Guide groove 121: Lower frame 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 part 124b: Outdoor side leg part 124c: Indoor side leg part 124d: Jaw part 125: Resin cover member 13: Left vertical frame 14: Right vertical frame 2: Internal shoji 3: External shoji 21: Upper frame 21a: Guide groove 22: Lower frame 22a: Guide groove 221: Outdoor lower frame section 221a: Upper hollow Part 221b: Lower hollow part 221c: Outdoor side hanging piece 222: Indoor side lower frame part 222a: Hollow part 23: Left vertical frame (summing frame)
24: Right vertical frame (toe frame)
31: Upper frame 32: Lower frame 321: Outdoor lower frame part 321a: Upper hollow part 321b: Lower hollow part 321c: Outdoor side hanging piece 33: Left vertical frame (door end frame)
34: Right vertical stile
6: Door roller protection means 61: Sealer 62: Refractory material holding member 62a: Fixed part 62b: Refractory material holding surface 81: Crescent lock 82: Crescent receiver 932: Reinforcing member 932a: Found surface

Claims (1)

It has a frame that is placed in the building opening, and a shoji that has a door frame made of resin on the lower frame and that can be opened and closed freely inside the frame.
Joinery characterized in that heating expanders that expand toward the door car in the event of a fire are provided on both sides of the lower frame of the shoji screen in the running direction of the door car.

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