JP6420527B2 - Opening device - Google Patents

Description

The present invention relates to an opening device in which a shoji is placed in a frame body provided in an opening of a building, and in particular, when a fire breaks out, the clearance between the indoor side surface of the shoji and the frame body is filled with a heating foam material to improve fire prevention performance. The present invention relates to an opening device.

As an opening device, a sliding sash with an internal and external shoji placed in a frame provided in an opening of a building is widely used. In a sliding sash, fireproof performance may be required.In this case, a heating foam material is provided between the shoji and the frame, and the heating foam expands in the event of a fire, so that the fire shovel expands between the shoji and the frame. The gaps that occur are blocked so that heat and flame do not penetrate inside or outside the room.

In the case of a sliding sash, a door wheel provided on the shoji is placed on the rail part formed on the lower frame, but the door wheel melts in the event of a fire, so the shoji is straddling the rail part and the inner periphery of the lower frame. Approach the surface side. In this case, in order to close the gap between the lower frame and the shoji, it is common that a heating foam material is disposed on the lower arm constituting the shoji so as to face the rail portion. By doing in this way, at the time of a fire, between a rail part and a lower arm is obstructed. As such an opening device,
For example, there is one as described in Patent Document 1.

JP 2012-144866 A

In the sliding sash, it is necessary to block the area between the internal and external shojis in the event of a fire, that is, the area between the internal and external summons that constitute the shoji. The gaps in the vertical direction of the shoji and the gaps in the lower side of the shoji cannot be closed unless they are continuous. It was necessary to provide a heating foam material.

In order to attach a heating foam material to a corner part, it is necessary to form a corner part composed of an inner member and an outer member in order to hold it, causing the structure of the corner part to be complicated.

This invention is made | formed in view of the said subject, and it aims at providing the opening part apparatus which can block | close the clearance gap produced between a shoji and a lower frame efficiently at the time of a fire outbreak.

To solve the above problems, the present opening device, the opening device comprising pay indoor and outdoor shoji the upper and lower frames and the left and right vertical frame framework with a frame body, the shoji of right and left vertical stile stile A panel body is housed in a housing that is assembled with a lower frame, formed by a member projecting inward in the direction of finding from the lower frame, and a horizontal projecting surface portion projecting horizontally from the projecting member. It includes a pocket that is, from the interior side of the bottom rail and the indoor suspended piece portion being downwardly depending facing the opening of the pocket portion, and the pocket portion in a fire and an opening of said pocket portion and said chamber suspending piece section The heating foam material is arranged so as to close the gap.

According to the present invention, since the heating foam facing the lower frame is provided on the lower heel, it is possible to close the gap between the lower frame and the lower heel in the event of a fire and to heat in the vertical direction to close the summoned portion. The foam material and the heated foam material of the lower arm can be made continuous.
In addition, when a fire breaks out, the heated foam material is filled with the pocket portion so that the inside and outside of the room can be reliably closed, and when the shoji door is melted, the heated foam material filled in the pocket portion Therefore, it is possible to prevent the combustible gas generated from the molten resin material from flowing.

The opening apparatus according to the present invention, members of the projecting is a rail portion for guiding the sliding door in the longitudinal direction, the indoor suspended piece portion is suspended to the lower than the upper end position of the rail unit, the indoor droop The outer surface of the one part constitutes the opposing surface part, and the heating foam material is arranged over substantially the entire length in the longitudinal direction of the indoor hanging piece.

According to the present invention, since the space between the indoor hanging piece and the lower frame is filled, even if there is a gap between the indoor hanging piece and the lower frame, the heating and foaming material does not allow communication between the interior and the exterior. Can do.
Accordingly, it is possible to provide an anti-separation part or the like so as to wrap around the lower part of the indoor hanging piece, and it is possible to eliminate the need for notching the indoor hanging piece.

Further, in the opening device according to the present invention, the pocket portion opens toward the indoor hanging piece, and the heating foam material is disposed so as to foam toward the pocket portion. It is configured as.

According to the present invention, in the event of a fire, the pocket portion is filled with the heated foam material so that the inside and outside of the room can be reliably closed, and when the shoji door is melted, the pocket portion is filled. The heated foamed material can prevent the flow of combustible gas generated from the molten resin material.

Still further, in the opening device according to the present invention, the vertical gutter has a vertical opposed surface portion opposed to the surface of the other shoji or the vertical frame of the other opposing shoji, and a heating foam material is disposed on the vertical opposed surface portion. The heating foam material of the longitudinally facing surface portion is arranged at least in the horizontal extension position of the lower foam heating foam material.

According to the present invention, the heating foam material of the vertical gutter and the heating foam material of the lower gutter can be continued at the corner portion of the casing, so that it is not necessary to provide a corner part or the like having the heating foam material. can do.

In the opening device according to the present invention, the horizontal projecting surface portion projects toward the indoor side surface of the lower collar and is provided along the longitudinal direction, and the horizontal projecting surface portion has a notch portion in part, At least a part of the notched part and the heating foam of the vertical wall face each other.

According to the present invention, when the fire occurs, the vertical heating foam material foams toward the lower frame without being blocked by the horizontal projecting surface portion, so the lower end of the summoning can be closed early in the event of a fire, and the heating surface side The generated combustible gas can be prevented from circulating indoors and outdoors.

According to the opening device according to the present invention, it is possible to efficiently close a gap generated between the shoji and the lower frame when a fire occurs, and to improve fire prevention performance.

It is a longitudinal cross-sectional view of the sliding sash as an opening part apparatus of this embodiment. It is a cross-sectional view of the sliding sash as an opening part apparatus of this embodiment. FIG. 2 is an enlarged view of the lower frame and the vicinity of the lower eyelid in FIG. 1. FIG. 3 is an enlarged view of the vicinity of a summing part of a shoji and a shoji in FIG. 2. FIG. 3 is an enlarged view of the frame side downside of the shoji screen and the vicinity of the vertical frame in FIG. 2. It is the front view seen from the room inner side of the frame which comprises a shoji. It is an enlarged view of the vicinity of the lower frame on the side where the external shoji is arranged in the event of a fire. It is AA sectional drawing of FIG. It is a lower frame vicinity expanded sectional view showing the process in which the heating foam material of a summon candy foams toward the part which has a horizontal protrusion surface part among lower frames. It is a lower-frame vicinity expanded sectional view showing the process in which the heating foam material of a summon bowl expands toward the part of a notch part among lower frames. It is an expanded sectional view of the lower frame and frame side vertical hook in the position of a pulling part. It is AA sectional drawing of FIG. 1 at the time of fire outbreak.

Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a longitudinal sectional view of a sliding sash as an opening device of the present embodiment, and FIG. 2 shows a transverse sectional view of a sliding sash as an opening device of the present embodiment. As shown in each of these drawings, the opening device of the present embodiment is a sliding sash in which an inner shoji 2 and an outer shoji 3 are placed in a sliding manner in a frame 1 attached to a building opening.

The frame 1 is formed by forming an upper frame 10, a lower frame 11, and left and right vertical frames 12 and 12 into a rectangular frame. The upper frame 10 includes an upper inner rail portion 10b that guides the upper side of the inner shredder 2 on an inner peripheral surface 10a that faces the upper surfaces of the inner and outer children 2 and 3, and an upper and outer rail portion that guides the upper side of the outer shoji 3. 10
c are formed in a protruding shape.

The lower frame 11 includes an inner rail portion 11b that guides the lower side of the inner shoji 2 and an outer rail portion 11c that guides the lower side of the outer shoji 3 on the inner peripheral surface 11a that faces the lower surfaces of the inner and outer children 2 and 3. Are each formed in a protruding shape.

The vertical frame 12 on the side on which the inner shoji 2 is arranged has an inner peripheral surface 12 that faces the side surface in the vertical direction of the inner shroud 2.
a has a fin portion 12b protruding toward the inner shoji 2 side. In addition, the vertical frame 12 on the side where the external shoji 3 is arranged is arranged on the inner peripheral surface 12 a facing the vertical side surface of the external shoji 3.
It has the fin part 12b which protrudes toward the side, and the protrusion 12c formed in an indoor side rather than the fin part 12b. An airtight material 12d is held on the projecting piece 12c along the longitudinal direction, and abuts against the indoor side surface of the outer panel 3.

The inner shoji 2 and the outer shoji 3 include a panel body 5 made of a multi-layer glass plate in a housing 4 formed by assembling an upper collar 20 and a lower collar 21, a frame side vertical collar 22 and a summing collar 23. It is configured. Upper 2
In 0, a guide recess 20a for swallowing the upper inner rail portion 10b or the upper outer rail portion 10c is formed at the upper end portion facing the upper frame 10. Airtight members 20b and 20b are provided on both sides of the opening portion of the guide recess 20a, respectively, which are in contact with the interior and exterior surfaces of the upper inner rail portion 10b or the upper and outer rail portions 10c, respectively, to ensure airtightness on the upper side of the shoji. Like to do. Moreover, the heating foam material 20c is arrange | positioned along the longitudinal direction at the bottom wall part of the guide recessed part 20a.

The lower arm 21 is provided with a resin door 21e at the lower end, which is the inner rail portion 11b.
Alternatively, it is placed on the outer rail portion 11 c so that the inner shoji 2 and the outer shoji 3 can run along the longitudinal direction of the lower frame 11. FIG. 3 shows an enlarged view of the vicinity of the lower frame 11 and the lower eyelid 21 in FIG.

As shown in FIG. 3, the indoor side surface of the lower rod 21 has an indoor hanging piece 21a hanging downward, and the outdoor side surface of the lower rod 21 has an outdoor hanging piece 21b hanging downward. ing. Bottom frame 1
The inner rail portion 11b formed in 1 is formed with a horizontal projecting surface portion 11d projecting toward the outdoor side at the upper and lower intermediate positions along the longitudinal direction, and an airtight material 11g is held at the tip portion thereof. It abuts against the indoor hanging piece 21a of the lower arm 21 constituting the outer shoji 3. The lower frame 11 is formed with a concave pocket portion 11f that opens toward the outer screen 3 by the horizontal protruding surface portion 11d, the inner rail portion 11b, and the inner peripheral surface 11a. In addition, an airtight material 11 g is provided on the indoor side surface of the lower frame 11 at a position facing the indoor hanging piece 21 a of the inner shoji 2, and abuts against the indoor side surface of the inner shoji 2.

A pulling part 21f is attached to the lower arm 21 constituting the external shoji 3 in the vicinity of the lower end portion between the indoor hanging piece 21a and the outdoor hanging piece 21b. The drawing component 21f has a drawing portion 21g formed in a step shape, and the drawing portion 21g faces the upper end portion of the inner rail portion 11b. The lower end portion of the drawing component 21f is bent in a substantially L shape toward the indoor side, and supports the detachment preventing portion 21h on the indoor side of the indoor hanging piece 21a. The stopper part 21h is a shoji 3
When the lift is lifted, it comes into contact with the horizontal projecting surface portion 11d of the lower frame 11 so that the external obstacle 3 can be prevented from being lifted any further, and the external obstacle 3 can be prevented from coming off the frame 1.

The indoor hanging piece 21a of the lower arm 21 constituting the outer shoji 3 is arranged in the vicinity of the opening of the pocket portion 11f of the lower frame 11, and is an outer surface facing the outdoor side surface of the inner rail portion 11b constituting the lower frame 11. Has a facing surface portion 21c. A heating foam material 21d is disposed on the facing surface portion 21c along the longitudinal direction. In order to hold the heating foam material 21d, a claw-like holding portion 21k is formed in the indoor hanging piece 21a. The holding part 21k is formed in a region that is recessed outward from the surface of the lower frame 21 where the airtight material 11g of the lower frame 11 contacts, and can hold the upper and lower ends of the heating foam material 21d. Yes. A heating foam material 21i is disposed along the longitudinal direction of the outdoor hanging piece portion 21b of each lower collar 21 of the inner and outer children 2 and 3 on the inner surface facing the door wheel 21e.

FIG. 4 shows an enlarged view of the vicinity of the summing part of the inner shoji 2 and the outer shoji 3 in FIG.
The summoning bowl 23 of the inner shoji 2 and the summoning bowl 23 of the outer shoji 3 are arranged so as to face the inside and outside of the room. Each summoning bowl 23 has a substantially L-shaped smoke return portion 23c on the opposing surface,
The smoke return portion 23c meshes with each other or comes close to each other in a state where the inner and outer shojis 2 and 3 are closed. In addition, the summoning cage 23 of the inner shoji 2 has an airtight material 23d along the longitudinal direction on the outdoor side surface.
This is in contact with the summoning ridge 23 of the external shoji 3 to secure the airtightness of the vertical side at the summoning portion.

The summoning cage 23 constituting the outer shoji 3 has a longitudinally facing surface portion 23a that faces the summoning cage 23 of the facing innerjiji 2, and the longitudinally facing surface portion 23a has a heating foam material 23 along the longitudinal direction.
b is arranged. In order to hold the heating foam material 23b, the summoning bowl 23 is formed with a concave holding portion 23e.

FIG. 5 is an enlarged view of the vicinity of the frame-side downboard 22 and the vertical frame 12 of the shoji 3 in FIG. The frame side vertical rod 22 has a concave portion 22a for swallowing the fin portion 12b formed on the vertical frame 12 on the outer peripheral side. Moreover, the hollow part 22c is provided in the inner peripheral side of the recessed part 22a along the longitudinal direction.

Both side walls constituting the concave portion 22a of the frame side vertical rod 22 have vertical opposing surface portions 22b and 22b facing the fin portion 12b of the vertical frame 12. A heating foam material 22d is disposed along the longitudinal direction of each of the vertically opposed surface portions 22b. The vertically opposed surface portion 22b has a heating foam material 22d.
A concave holding portion 22e is formed to hold the.

In FIG. 6, the front view seen from the room inner side of the frame 4 which comprises the external shoji 3 is shown. The frame 4 is connected to both side surfaces of the upper rod 20 and the lower rod 21 against the side surfaces of the upper and lower ends of the frame-side vertical rod 22 and the summoning rod 23 constituting the vertical side. It is assembled with

The heating foam 20c of the upper collar 20 is provided over substantially the entire length of the upper collar 20 in the longitudinal direction.
The heating foams 21d and 21i of the lower collar 21 are also provided over substantially the entire length of the lower collar 21 in the longitudinal direction. The heating foam material 23b of the summoning bowl 23 is provided over substantially the entire length in the longitudinal direction of the summoning bowl 23, and the lower end portion thereof is the heating foam material 2 provided on the opposing surface portion 21c of the lower bowl 21.
It is arranged so as to be adjacent to the horizontal extension position of 1d. 22d heating foam 22d
Is provided over substantially the entire length in the longitudinal direction of the frame-side vertical rod 22, and the lower end portion thereof is disposed at the horizontal extension position of the heating foam material 21 d provided on the opposing surface portion 21 c of the lower rod 21.

A windshield member 13 is provided between the upper inner rail portion 10 b and the upper and outer rail portion 10 c of the upper frame 10 and in the region of the summing portion of the inner and outer shoji 2 and 3. The windshield member 13 is a block-shaped member that comes into contact with the upper surface of the summing portion of the inner and outer shojis 2 and 3 and hermetically seals the upper end portion of the summing portion. FIG. 6 shows a windshield member 13, and the windshield member 13 is provided with a heating foam material 13 a so as to oppose the upper surfaces of the inner and outer shojis 2 and 3.

An upper anti-vibration component 24 made of resin is provided at the upper end of the frame-side vertical rod 22. The upper anti-vibration component 24 includes an insertion portion 24 a that is inserted into the hollow portion 22 c of the frame-side vertical rod 22. A concave guide portion 24b is formed in the insertion portion 24a so as to be in sliding contact with the upper and outer rail portions 10c (see FIG. 6). In the upper anti-vibration component 24, a heating foam material 24c is disposed in the insertion portion 24a.

In the sliding sash in which the heating foam material is arranged in this way, in the event of a fire, the inner impeller 2
Each of the casings constituting the casing 4 of the shoji 3 is heated to approach the frame 1 side, and the casing 4
The resin parts used in the melt. At this time, the heat-foaming material provided in various places of the housing 4 is foamed to increase the volume, and the gap between the frame body 1 and the housing 4 is closed so that the interior and the exterior are not communicated.

FIG. 7 shows an enlarged view of the vicinity of the lower frame 11 on the side where the external shoji 3 is arranged in the event of a fire. As shown in this figure, when a fire breaks out and the sliding sash is exposed to a high temperature, the lower rod 21 is moved to the lower frame 11 due to the thermal expansion of the frame-side vertical rod 22 and the summoning rod 23, the melting of the door roller, etc. It moves to the inner peripheral surface 11a side. At this time, the attracting portion 21 g of the attracting component 21 f provided on the lower rod 21 comes into contact with the outer rail portion 11 c of the lower frame 11. Since the attracting portion 21g is formed in an inclined surface shape, the lower eyelid 21 is attracted to the indoor side. As a result, the lower arm 21
As a result of warping, it moves to the outdoor side so that no gap is created between the lower frame 11 and the lower rod 21.

Since the heating foam material 21d provided on the facing surface portion 21c of the lower collar 21 faces toward the indoor side, it foams toward the indoor side. The facing surface portion 21c faces the lower portion of the inner rail portion 11b of the lower frame 11, and the lower portion of the inner rail portion 11b forms a bottom wall opposite to the opening of the pocket portion 11f. 21d fills the pocket portion 11f. As a result, the space between the indoor hanging piece 21a of the lower rod 21 and the lower frame 11 is closed.

The heating foam material 21i provided in the outdoor hanging piece 21b of the lower arm 21 is a door roller 21e that is opposed to the heating foam material 21i.
Foam toward the side. Since the door pulley 21e is made of a resin material, it melts in the event of a fire. The heated foam material 21i pushes this molten resin material indoors. Thereby, it can prevent that the door-cart molten resin 25 is brought closer to the indoor side from the outer rail portion 11c, and leaks to the outdoor side and ignites.

Moreover, the door roller molten resin 25 pushed out to the indoor side from the outer rail portion 11c is prevented from moving further indoors than the indoor hanging piece 21a by the foamed heating foam material 21d. That is, the door roller molten resin 25 is confined in a region between the outer rail portion 11c and the indoor hanging piece 21a. By confining the door roller molten resin 25 in the space covered with the lower arm 21 in this way, it is possible to prevent ignition of the door roller molten resin 25 and to prevent the combustible gas generated from the door roller molten resin 25 from flowing into the indoor side. Can be.

The indoor hanging piece 21a of the lower collar 21 is separated from the inner circumferential surface 11a of the lower frame 11 in the state of FIG. 7 where the lower collar 21 has moved to the inner circumferential surface 11a side of the lower frame 11. . Indoor hanging piece 2
By setting 1a to such a length, it is possible to provide a detachment preventing portion 21h so as to go around the lower end portion of the indoor hanging piece 21a. When the indoor hanging piece 21a has a length in contact with the inner peripheral surface 11a of the lower frame 11, the indoor hanging piece 21a is notched in order to dispose the retaining portion 21h on the indoor side of the lower rod 21. Although it is necessary to perform processing and to insert the stopper portion 21h into the notch, the notch processing for the lower eyelid 21 can be made unnecessary by configuring as in the present embodiment.

On the other hand, since the stopper part 21h is a piece-like member that is arranged at a predetermined interval along the direction of finding, the indoor hanging part 21 except for the part where the stopper part 21h is arranged.
a is formed between the inner peripheral surface 11a of the lower frame 11 and the indoor side is filled with the heating foam material 21d provided on the facing surface portion 21c from the indoor hanging piece 21a. Do not communicate with. That is, the region between the outer rail part 11c and the indoor hanging piece part 21a is in a sealed state so that the door roller molten resin 25 does not leak into the indoor side.

FIG. 8 is a cross-sectional view taken along the line AA in FIG. As shown in this figure, the heating foam material 21d provided in the indoor hanging piece 21a of the lower rod 21 is not only the indoor side of the lower rod 21, but also the frame side vertical rod 2
It also wraps around and fills the area inside the room 2. On the horizontal projecting surface portion 11d of the lower frame 11, a notch portion 11e for draining water is formed in the vicinity of the summoning portion and is divided at this portion.

On the vertical side of the frame 4, the heating foam material 22 d provided on the vertical facing surface portion 22 b of the frame side vertical rod 22 foams toward the fin portion 12 b of the opposing vertical frame 12, and the frame side vertical rod 22 and the vertical frame The gap between 12 is filled. As shown in FIG. 6, the heating foam 22 d of the frame-side vertical gutter 22 has a lower end at the horizontal extension position of the heating foam 21 d of the lower gutter 21, so that both are continuous at the lower end,
The gap can be continuously closed at the corner portion of the casing 4.

Although the airtight material 12d provided in the vertical frame 12 is lost in the event of a fire, the heating foam material 21d of the lower gutter 21 and the heating foam material 22d of the frame side vertical gutter 22 that wrap around the indoor side of the frame side vertical gutter 22 are continuous. As a result, the gap between the frame body 1 and the frame-side vertical rod 22 is continuously closed, so that indoor and outdoor communication can be prevented. Note that the airtight material 12d may be formed of a material that is sintered at a high temperature instead of or in combination with the heated foam material 22d of the frame-side vertical rod 22. In this case, the airtight material 12d remains hardened even at the time of a fire, and the state where the gap between the vertical frame 12 and the frame side vertical rod 22 is closed can be maintained.

The heating foam material 23b provided on the vertical facing surface portion 23a of the summoning bowl 23 foams toward the inner rail portion 11b of the lower frame 11 facing at the lower end portion. Since the heating foam material 23b of the summoning bowl 23 has a lower end portion which is a horizontal extension position of the heating foam material 21d of the lower bowl 21 and is adjacent to each other, both are continuous at the lower end portion, and the corner of the casing 4 The gap can be closed continuously in the portion.

Thus, the heating foam material 21d provided on the lower bowl 21 and the heating foam material 2 of the summon bowl 23
3b is arranged in the same prospective surface, and the heating foam 23b of the summon bowl 23 is arranged at the horizontal extension position of the heating foam 21d of the lower bowl 21, so that both are continuously in a fire, Since the gap between the housing 4 and the lower frame 11 can be closed, it is possible to eliminate the need to provide a corner component having a heating foam material at the corner portion of the housing 4.

The heating foam material 23b of the summoning bowl 23 is arranged so that a part thereof faces the cutout portion 11e of the horizontal projecting surface portion 11d formed in the lower frame 11 in the indoor / outdoor direction. For this reason,
At the lower end of the casing 4, the heating foam 21 d of the lower bowl 21 and the heating foam 2 of the summon bowl 23.
With 3b, a boundary is formed in the notch 11e.

FIG. 9 shows an enlarged cross-sectional view of the vicinity of the lower frame 11 showing a process in which the heated foam material 23b of the summon bowl 23 foams toward the portion of the lower frame 11 having the horizontal protruding surface portion 11d.
FIG. 9A shows a state immediately after the heating foam 23b of the summon bowl 23 starts foaming.
Since the heating foam material 23b faces toward the indoor side, the volume expands toward the indoor side when foaming is started.

As shown in FIG. 9 (b), when the foaming of the heating foam material 23b proceeds, the leading end of the heating foam material 23b reaches the inner rail portion 11b of the lower frame 11, but the horizontal protruding surface portion 11d is formed at the outdoor end portion. Since there is a holding portion for the airtight material 11g, the heating foam 23b cannot enter the indoor side portion from the outdoor side.

As shown in FIG. 9 (c), the heated foam material 23b reaching the inner rail portion 11b further expands to enter the indoor side portion from the holding portion of the airtight material 11g included in the horizontal projecting surface portion 11d. As shown in FIG. 9 (d), the entire pocket portion 11f is made of the heated foam material 23b.
Filled with. For this reason, about the part which has the horizontal protrusion surface part 11d among the lower frames 11,
It takes a certain amount of time for the heating foam 23b to fill the entire pocket portion 11f.

FIG. 10 shows an enlarged cross-sectional view of the vicinity of the lower frame 11 showing a process in which the heated foam material 23b of the summoning bowl 23 is foamed toward the notch portion 11e of the lower frame 11. FIG.
As shown in FIG. 5B, since there is nothing obstructing in the foaming direction of the heating foam 23b of the summon bowl 23 in the notch portion 11e, the heating foam 23b is directly filled toward the inner rail portion 11b. And as shown in FIG.10 (b), the area | region from the summon bowl 23 to the inner rail part 11b is filled.

When all the heating foams 23b of the summon bowl 23 are opposed to the horizontal protruding surface portion 11d,
Since it takes time to fill the entire area up to the inner rail portion 11b as shown in FIG. 9, when heated from the outdoor side, the heating surface side and the non-heating surface side are separated at the initial stage of the fire. The connected state was maintained, and there was a possibility that the combustible gas flowed into the non-heated surface side. On the other hand, by arranging a part of the heating foam 23b of the summon bowl 23 so as to face the notch portion 11e, the heated surface side and the non-heated surface side are closed early in the event of a fire. The combustible gas generated by the flash phenomenon on the heating surface side can be reliably prevented from igniting on the non-heating surface side through the gap at the bottom of the summoning. That is, more stable fireproof performance can be ensured.

As shown in FIG. 2, a concave pulling portion 22 f is formed along the longitudinal direction on the indoor side surface of the frame-side vertical rod 22 that constitutes the external shoji 3. A block-shaped resin part is provided at the lower end of the puller portion 22f so as to fill the puller portion 22f in order to continue the airtight line of the airtight material 11g of the lower frame 11. Resin parts are melted and lost in the event of a fire,
If it is left as it is, a gap will be created at the lower end of the puller 22f, and the interior and the exterior will be communicated.

FIG. 11 shows an enlarged cross-sectional view of the lower frame 11 and the frame-side vertical rod 22 at the position of the pulling portion 22f. As shown in this figure, the heating foam 21 provided on the opposing surface portion 21c of the lower collar 21
d also fills the pocket portion 11f near the longitudinal end portion of the lower frame 11, and also fills the pulling portion 22f of the frame-side vertical rod 22 facing it. As a result, the puller part 2 in which the resin part is lost is obtained.
2f can be blocked so that the interior and the exterior are not communicated.

FIG. 12 is a cross-sectional view taken along line AA of FIG. 1 when a fire occurs. In the event of a fire, the airtight material 20b of the upper rod 20 is lost, but the heating foam 20c provided on the upper rod 20 foams and fills the guide recess 20a, and the upper inner rail portion 10b and the upper and outer rail portions 10c The gap between the flanges 20 is closed. Further, the hollow portion 22 c of the frame-side vertical rod 22 is closed by the heating foam material 24 c provided on the upper anti-vibration component 24. In addition, you may form with the material sintered at the high temperature about the airtight material 20b of the upper collar 20. FIG. In this case, the airtight material 20b of the upper lid 20 is cured and remains even in the event of a fire, and the state where the gap between the upper rod 20 and the upper frame 10 is closed can be maintained.

In the summoning portion, as described above, the heating foam material 23b provided on the summoning cage 23 of the external shoji 3 foams toward the summoning salmon 23 of the opposing inner shoji 2, and these are along the longitudinal direction. Block between. Moreover, in the upper end part, the heating foam material 13a currently hold | maintained at the wind-shield member 13 foams toward the summoning cage | basket 23 of the inner shoji 2 and the outer shoji 3, and can block | close between these.

Further, the airtight material 23d provided in the summoning bowl 23 is lost in the event of a fire, but the airtight material 23 is also lost.
You may form d with the material sintered at high temperature. In this case, the airtight material 23d remains hardened even in the event of a fire, and the gap between the summoning bowls 23 can be closed, so that the heated foam material 23b
This can be made unnecessary except for the lower end portion facing the inner rail portion 11b.

As described above, in the present embodiment, the casing 4 that constitutes the shoji 3 is continuously closed over the entire upper, lower, left, and right circumferences and between the frame 1 and the gap generated in the casing 4. It is possible,
Heat, flame, or combustible gas can be prevented from communicating indoors and outdoors, and fireproof performance can be enhanced.

In this embodiment, the heating foam material 21d is disposed on the facing surface portion 21c of the lower bowl 21, and at least a part of the heating foam material 23b disposed on the longitudinal facing surface portion 23a of the summon bowl 23 is the lower bowl 21.
Although the heating foam material 21d is disposed at the horizontal extension position and faces the notch 11e of the lower frame 11, the heating foam material is not disposed on the facing surface portion 21c of the lower collar 21, and the summoning bowl 23
The heating foam material 23b may be disposed so as to face the notch portion 11e.

Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea.

DESCRIPTION OF SYMBOLS 1 Frame 2 Inner shoji 3 Outer shovel 4 Housing 5 Panel body 10 Upper frame 11 Lower frame 11b Inner rail part 11c Outer rail part 11d Horizontal protrusion surface part 11e Notch part 11f Pocket part 11g Airtight material 12 Vertical frame 20 Upper collar 20a Guide Concave portion 20b Airtight material 20c Heating foam material 21 Lower lid 21a Indoor hanging piece portion 21b Outdoor hanging piece portion 21c Opposing surface portion 21d Heating foam material 21e Door wheel 21i Heating foam material 22 Frame side vertical rod 22b Vertical facing surface portion 22d Heating foam material 23 Summoning Ａ 23a Longitudinal facing surface part 23b Heating foam material

Claims (4)

In the opening device in which the indoor and outdoor shojis are housed in the frame body that frames the upper and lower frames and the left and right vertical frames,
The shoji has a panel body in a frame that is a combination of upper and lower ridges and left and right vertical folds.
A pocket formed by a lower frame, a member protruding inward in the direction of finding from the lower frame, and a horizontal protruding surface portion protruding in the horizontal direction from the protruding member;
An indoor suspended piece portion suspended from the indoor side surface of the bottom rail downward to face the opening of the pocket portion, said chamber so as to block between the pocket portion in a fire and an opening of said pocket portion and said chamber suspending piece section Place the heating foam material on the opposite surface part of the hanging piece ,
The vertical fence has a vertical opposing surface portion facing the vertical fence or vertical frame surface of the other shoji facing each other, a heating foam material is disposed on the vertical opposing surface portion, and the heating foam material of the vertical opposing surface portion is at least An opening device characterized in that the opening device is disposed at a horizontally extending position of the heating foam of the lower shell . Member the projecting is a rail portion for guiding the sliding door in the longitudinal direction, the indoor suspended piece portion is suspended to the lower than the upper end position of the rail section, with the outer surface of the chamber suspended piece portion constituting the opposite face 2. The opening device according to claim 1, wherein the heating foam material of the lower arm is disposed over substantially the entire length in the longitudinal direction of the indoor hanging piece. The said pocket part is opening toward the said indoor drooping piece part, The heating foam material of the said lower armor is arrange | positioned so that it may foam toward this pocket part, The Claim 1 or 2 characterized by the above-mentioned. Opening device. The horizontal projecting surface portion protrudes toward the interior side surface of the lower collar and is provided along the longitudinal direction. The horizontal projecting surface portion has a notch in a part thereof. The opening device according to any one of claims 1 to 3, wherein at least a part thereof faces each other .

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