JP2012007323A - Door device with movable insulation door body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a door device, which is to be fixed to a wall body configuring a fireproof section, having high thermal insulation performance without impairing a light opening/closing operation.SOLUTION: The present invention comprises a movable thermal insulation door body 10 which is positioned at either a front side or a rear side of an opening/closing door body 5 which opens or closes an opening section 3a and arranged to freely slide between a full-closed attitude where the thermal insulation door body 10 covers the opening/closing door body 5 in the full-closed attitude by laminating the opening/closing door body 5 and a full-open attitude where the thermal insulation door body 10 exposes the opening/closing door body 5 in the fully-closed attitude. The thermal insulation door body 10 includes energizing means 13 to energize the thermal insulation door body 10 toward the full-closed attitude; a regulation member 14 to hold the thermal insulation door body 10 in the full-open attitude against energizing force of the energizing means 13; and forcible closing means to forcibly close the thermal insulation door body 10 as a temperature around the opening section 3a reaches a prescribed high temperature (for example 100 degrees Celsius) by releasing the full-closed attitude held by the regulation member 14.

Description

  The present invention relates to a technical field of a door device provided with a plurality of movable heat insulating door bodies provided on a wall body that partitions a space such as an underground parking lot or a tunnel.

In general, in a large space that is closed, such as in a large underground parking lot or a long tunnel, the space is partitioned by a wall to form a compartment (fire-proof compartment), and the compartment is separated from the closed space. It may be an evacuation passage that leads to the outside. For example, in the case of a tunnel in which transportation is running, it is formed in the space where the main passage where a car or the like travels is formed and the side of the main passage, so that it escapes to the outside of the tunnel when an abnormality such as a fire occurs. The space in which the evacuation passage is formed is partitioned by a wall body to form a section, and a plurality of openings are formed in the wall body with a predetermined gap in the length direction of the tunnel, and each of the openings is evacuated. In the event of an emergency such as a fire that occurs on the side of this passage, a door device is provided for evacuation to the side of the evacuation passage via the nearest door device.
As such a door device, it is necessary to prevent the smoke and toxic gas generated on the main passage side from flowing into the evacuation passage side in an emergency, and automatically when the door body is opened during evacuation. Therefore, it is required to be a self-closing type with a fully closed posture. Therefore, as such a self-closing door device, a door body that is normally in a fully closed position in a normal state is maintained in an open position for a preset time when the door is opened, and then the door body is What has been configured to be in a fully closed position has been proposed.

Japanese Patent Publication No. 2-38231

  By the way, as a self-closing door device provided in such a compartment, a heat insulating material (fireproof heat insulating board) is built in the door body to provide heat resistance performance as well as fireproof performance, and the door body is in a fully closed posture. In this state, the fire escape side is prevented from spreading or becoming hot. However, in a door body provided in a location where wind pressure acts on the door body, such as a door device provided in a tunnel, the door body is built with aggregate to provide rigidity. Even if a heat insulating material is incorporated, there is a problem that the metal aggregate becomes a heat bridge between the front and back surfaces of the door body and the heat insulating performance is impaired. If the heat insulation performance is impaired in this way, the door body itself may become hot and warp the door body (so-called thermal warpage), and in this case, a gap is formed between the door body and the opening. There is a problem that it is assumed that smoke and toxic gas enter the evacuation passage side through the gap. Moreover, since the door device provided in the tunnel is provided between the main passage which is a large space and the evacuation passage which is a narrow space, the heat of the fire generated on the main passage side which is a large space Therefore, the evacuation passage side, which is a narrow space, has a great influence, and the door body is required to have higher heat insulation performance. In order to respond to these problems and requirements, it is conceivable to increase the heat insulating performance of the door body itself by increasing the heat insulating material built in the door body or using a heat insulating material with high heat insulating performance. In this case, it is assumed that the door body becomes heavy, and the opening operation of the door body that is heavy due to the self-closing mechanism becomes heavier, so that the quick evacuation is impaired. Therefore, there is a problem, and there is a problem to be solved by the present invention in providing a door device that enables quick evacuation while ensuring heat insulating performance in the opening.

The present invention was created with the object of solving these problems in view of the above circumstances, and the invention of claim 1 is for opening and closing an opening formed in a wall body that partitions a space. On the front and back sides of the door body, a fully closed position that covers the opening and closing door body by laminating on the opening and closing door body that closes the opening, and a fully open position that exposes the opening and closing door body that closes the opening to the outside A movable heat insulating door body is slidably movable in between, an urging means for urging the heat insulating door body toward a fully closed position, and a fully open position against the urging force of the urging means. A fully open holding means, and a forced closing means for forcibly closing the heat insulating door body by releasing the fully open posture holding by the fully open holding means as the temperature in the vicinity of the opening reaches a preset high temperature. It is a door device provided with a movable heat insulating door characterized by
In the invention of claim 2, the forced closing means is constituted by using a thermal fuse, and is the door device provided with the movable heat insulating door body according to claim 1.
The invention according to claim 3 is characterized in that the opening / closing door body and the heat insulating door body are provided in an opening portion of the wall body that partitions between the main passage space and the escape passage space in the tunnel. It is a door apparatus provided with the movable heat insulation door body as described in 1 or 2.
4. The movable heat insulating door according to claim 1, wherein the opening / closing door body is provided with a warp preventing means for preventing the door body from warping. A door device with a body.
6. The movable heat insulating door body according to claim 1, wherein the heat insulating door body is configured to function as a door pocket of the opening / closing door body. It is a door apparatus provided with.

According to the invention of claim 1, it is possible to exhibit high heat insulation performance in a state where the heat insulating door closes the opening, while enabling easy evacuation operation and quick evacuation. Become.
With the invention of claim 2, the heat insulating door can be surely brought into the fully closed position even during a power failure, and the configuration can be simplified and the cost can be reduced.
According to the invention of claim 3, not only can the evacuation from the tunnel be performed quickly, but also the temperature rise on the evacuation passage side which is a narrow space can be reduced.
According to the invention of claim 4, the heat insulation door body can be disposed close to the opening and closing door body so that the heat insulation door body does not get in the way, and the heat insulation door body can be reliably closed. A highly reliable door device can be provided.
By making it the invention of Claim 5, protection of the member for doors for opening and closing can be aimed at.

It is a front view from the escape passage side of a door device. It is a front view from the escape passage side of a door device in the state where a heat insulation door object was in a fully closed posture. It is XX sectional drawing of FIG. It is XX sectional drawing of FIG. It is a side view explaining the lower end part of a door device. 6A is a YY sectional view of FIG. 1, and FIG. 6B is a ZZ sectional view of FIG. 7A and 7B are a front view and a side view of the regulating member, respectively, and FIGS. 7C and 7D are a plan view and a front view of the wire control device, respectively.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the drawings, 1 is a main passage in a tunnel having a long length, and a space constituting an evacuation passage 2 is formed at a side portion of the space constituting the main passage 1. The evacuation passage 2 space is partitioned by a wall 3 along the entire length of the tunnel. The wall 3 is provided with a plurality of openings 3a communicating the main passage 1 space and the evacuation passage 2 space, and the main passage 1 in which the present invention is implemented on the side of the evacuation passage 2 of these openings 3a. And a door device 4 for entering and exiting the evacuation passage 2 is provided.

The door device 4 is provided along an escape passage side surface 3b of the wall 3 and includes an opening / closing door body 5 that opens and closes the opening 3a. The opening / closing door body 5 is provided with a heat insulating material as a core material between the front and back plates, and an aggregate is disposed. However, like a general-purpose evacuation door, a fire-resistant board with excellent fire resistance and heat insulation performance is provided. It is not decorated and is made as light as possible.
The opening / closing door body 5 is provided with roller brackets 5b each provided with a roller 5a located on the left and right of the upper end portion, and is provided with door wheels 5c located on the left and right of the lower end portion. On the other hand, a horizontally elongated upper frame 6 is integrally formed on the side of the escape passage side 3b on the side of the escape passage 2 of the wall 3 constituting the upper portion of the opening 3a so as to extend from the opening 3a to the door butt side. An upper guide rail 6a extending from the opening 3a to the door butt side is provided on the upper frame 6 so as to protrude toward the escape passage 2 side. In addition, a floor frame F below the opening 3a is provided with a lower frame 7 that is elongated in the left-right direction so as to extend from the opening 3a to the door butt. The opening 3a is provided in the lower frame 7. A lower guide rail 7a extending from the door to the door bottom is disposed upward.

The opening / closing door body 5 supports the pair of left and right rollers 5a so as to be movably supported on the upper guide rail 6a and supports the door 5c so as to be movably fitted to the lower guide rail 7a. In the state guided by the upper and lower guide rails 6a and 7a, it can slide along the side surface 3b of the escape passage, changing between a fully closed position for closing the opening 3a and an open position for opening the opening 3a. It is configured to appear.
Here, in the fully closed posture of the opening / closing door body 5, the door end side end portion 5 d of the opening / closing door body 5 protrudes from the escape passage side surface 3 b of the wall 3 on the door tip side of the opening 3 a. It is configured to immerse in a recessed groove portion 3d formed in the front piece 3c so as to be restricted in movement in the closing direction. In the fully open position of the opening / closing door body 5, the stopper piece 5 f provided on the door end side of the lower end portion of the opening / closing door body 5 is in contact with the stopper receiving piece 7 b provided on the lower frame body 7 to be opened. It is configured to be subject to movement restrictions in the direction.
Further, in the opening / closing door body 5 of the present embodiment, in the fully closed posture of the opening / closing door body 5, the opening / closing door body 5 is vertically long and is formed to project from the door butt side toward the main passage 1 side. The hook-shaped locking piece 5e is engaged with the vertically long locking receiving piece 3f provided on the first door-end side piece 3e protruding from the escape passage side surface 3b located on the door-end side of the opening 3a. Smoke omission prevention means for stopping is provided, and is configured to prevent smoke from the main passage 1 side from entering the evacuation passage 2 side.
The door 5 for opening and closing in the fully closed position is in a state in which the door end side end 5d is immersed in the recessed groove 3d of the door end side piece 3c in the entire vertical direction with respect to the door end side portion. A smoke receiving prevention means is provided in the entire vertical direction on the main passage 1 side of the bottom side portion, and a stopper receiving piece provided on the lower frame 7 on the lower end portion on the escape passage 2 side of the door bottom side portion. By providing 7b close, it is comprised so that the deformation | transformation to the front and back direction may be controlled in both the door tip side of the door 5 for opening and closing, and the door bottom side part. Accordingly, the opening / closing door body 5 is prevented from being warped in a curved shape at a high temperature, and there is no problem that the opening / closing door body 5 is detached from the lower guide rail 7a. Is not formed, and the smoke and toxic gas on the main passage 1 side is reliably prevented from entering the evacuation passage 2 side. This corresponds to a warp prevention means.

Further, a closing control unit 8 having a mechanism for performing self-closing control of the opening / closing door body 5 is provided at a door end side portion of the upper frame body 6. A winding pulley 8b protrudes from the casing 8a constituting the closing control unit 8 toward the evacuation passage 2, and one end portion of the operating wire 8c is wound around the winding pulley 8b. . The other end of the working wire 8c is unwound from the take-up pulley 8b toward the door end, and the unwound working wire 8c is located on the door tip side of the upper frame 6 and is an evacuation passage. The first pulley 6b protruding toward the second side passes through the escape passage 2 side of the pair of left and right roller brackets 5b above the opening / closing door body 5 and is pulled out to the door bottom side. The frame 6 is configured to be wound around a winding device 9 that is located at the door butt side end and projects toward the escape passage 2 side.
The winding pulley 8b is provided with an unillustrated urging ammunition housed in the casing 8a. The urging ammunition winds the operating wire 8c as the operating wire 8c is unwound. It is comprised so that the urging | biasing force of the direction to take may be stored. On the other hand, the winding device 9 is provided with a winding spring (not shown) biased in the direction of winding the other end of the working wire 8c so that the working wire 8c is wound on the winding pulley 8b. It is configured to be in a tension state between the winding device 9 and the winding device 9 so as to extend from the door tip side portion of the upper frame 6 to the door bottom side portion. At this time, the urging force in the winding direction of the urging ammunition housed in the casing 8 a is set so as to always exceed the urging force in the winding direction of the winding spring housed in the winding device 9. As a result, the operating wire 8c is in a tensioned state in the state of being wound around the winding pulley 8b, and in this state, the operating wire 8c is forced from the winding pulley 8b against the biasing force of the biasing ammunition. When the unwinding force that is unwound is applied, the actuating wire 8c is forcibly wound around the winding pulley 8b as the unwinding force disappears.
Further, the winding pulley 8b is interlocked with a closing delay means (not shown) housed in the casing 8a, and the operating wire 8c has a predetermined unwinding amount by the unwinding force that resists the biasing force of the biasing ammunition. When the door is unwound, the door closing delay means is activated. Then, when the door closing delay means is activated, the rotation of the winding pulley 8b in the winding direction (winding force of the working wire 8c) is restricted (prohibited) during a preset timer time. The actuating wire 8c is held at the unwound position, and thereafter, the actuating winding of the actuating wire 8c by the winding pulley 8b is started.

In the closing control unit 8 configured as described above, the operating wire 8c is provided with an operating body 8d for connecting to the opening / closing door body 5, and the operating body 8d is an opening / closing door body in a fully closed position. 5 is configured to be engaged with the engagement arm 5g provided on the roller bracket 5b on the door-end side provided at 5 from the door bottom side (closing direction). In the event of an emergency such as a fire, when the opening / closing door body 5 is opened to evacuate from the tunnel, the operating body 8d is pushed by the roller bracket 5b and moved to the winding device 9 side. The wire 8c is configured to be unwound from the take-up pulley 8b. Then, when there is no opening operation (disappearance of unwinding force), the winding of the operating wire 8c is restricted during the timer time set in advance by the door closing delay means, and the opening / closing door body 5 is held in an open state. Thereafter, the actuating wire 8c is wound around the take-up pulley 8b based on the energizing force of the energizing ammunition, whereby the actuating body 8d provided on the actuating wire 8c moves toward the first pulley 6b (in the closing direction). And it is comprised so that the door body 5 for opening and closing may be closed in a fully-closed attitude | position in the state which pushes the roller bracket 5b by the side of a door to the closed side.
In addition, 8e is a unit cover which covers the escape passage 2 side of the closing control unit 8.

Reference numeral 10 denotes a movable heat insulating door provided in a state of being close to the escape passage 2 side of the opening / closing door body 5, and the heat insulation door body 10 moves the opening / closing door body 5 in the fully closed posture to the escape passage 2. A closed posture for covering from the side to insulate the opening 3a and a door bottom side of the opening / closing door body 5 are juxtaposed, and the opening / closing door body 5 in a fully closed posture is exposed to the evacuation passage 2 side to open the opening 3a. The door device 4 arranged in the opening 3a is configured to slide both between the opening / closing door body 5 and the heat insulating door body 10 so as to slide between the open posture for easy access. It is configured to have.
The heat insulating door body 10 is formed by using a fireproof and heat insulating board having excellent fireproof performance and heat insulating performance, and is arranged along the wall body 3 in a normally open position as will be described later. Therefore, aggregates are not built in to cope with wind pressure, and are configured to maintain high fire resistance and heat insulation performance even at high temperatures. The heat insulating door body 10 includes a main body portion 10a having a vertical height that covers a portion from the floor surface F to the upper frame body 6, and a left-right width that covers the entire opening / closing door body 5, and an upper end edge of the main body portion 10a. Extending toward the main passage 1 side, extending from the upper edge 10b of the upper frame 6 in close proximity to and facing toward the main passage 1 from the door edge side edge of the main body 10a, The door bottom side piece 10c arranged facing the door bottom side of the door body 5 for opening and closing is comprised. And in the fully open attitude | position of the heat insulation door 10, it becomes a door pocket of the door 5 for opening and closing with the wall 3 which comprises the door butt side part of the opening part 3a, and the upper side guide rail 6a for the door 5 for opening and closing, 7a is configured so as to cover the door bottom side portion and protect each member.
The upper piece 10b of the heat insulating door body 10 is formed only in the door bottom side portion with the door end side half of the main body portion 10a being cut out. It is configured not to interfere. Further, the door butt side piece 10c of the heat insulating door body 10 is cut away at a portion facing the upper frame body 6, and when it changes into a fully closed posture, the winding device 9 and the roller 5a of the door 5 for opening and closing. The roller bracket 5b is not interfered with.

The main body portion 10a of the heat insulating door body 10 is formed with a thin plate portion 10d by cutting out the plate thickness on the opening / closing door body 5 side at an upper end portion (a portion facing the upper frame body 6). Guide rollers 11 are provided on the side surfaces of the opening / closing door body 10d at 10d so as to be able to roll on the left and right ends. These guide rollers 11 are supported by a vertical support shaft 11a supported with a predetermined gap from the side surface of the opening / closing door body 5 of the thin plate portion 10d, and are configured to rotate in the horizontal direction. . Moreover, the lower end part of the main-body part 10 is each provided with the door wheel 12 which is located in both right-and-left both ends and rotates in an up-down direction.
Note that 3 g is a second door bottom side piece that is provided to face the door bottom side piece 10 c of the heat insulation door body 10 in the fully closed posture of the heat insulation door body 10 and restricts the movement of the heat insulation door body 10 in the opening direction. It is.

The upper frame 6 is a member fixed to the escape passage side surface 3b of the wall 3, and is fixed to the escape passage side surface 3b and protrudes toward the escape passage 2, and further includes lower frames 6c and 6d. The rail frame 6e on which the upper guide rail 6a is provided is provided between the upper and lower frames 6c and 6d, and the rail frame 6e is connected to the evacuation passage side surface 3b. In the meantime, the gap S is formed. Further, a bent piece 6f that is bent downward is formed at an edge of the upper frame 6c on the escape passage 2 side, and the roller 5a that is suspended from the upper guide rail 6a is formed on the bent piece 6f. And the frame cover 6g for covering the roller bracket 5b and the upper end part of the door body 5 for opening and closing is provided so that opening and closing is possible.
A roller guide 6h that moves and guides the guide roller 11 of the heat insulating door 10 is formed on the surface of the bent piece 6f of the upper frame 6c so as to project toward the evacuation passage 2 side.
The lower frame body 7 is provided with a traveling rail 7c for traveling the door 12 of the heat insulating door body 10 on the side of the escape passage 2 of the lower guide rail 7a.
As a result, the heat insulating door body 10 is slidable in the left-right direction with the door 12 traveling on the traveling rail 7 c of the lower frame body 7 and the guide roller 11 receiving movement guidance from the roller guide 6 h of the upper frame body 6. Thus, it is configured to be movable to open and close the opening 3a. At this time, the heat insulating door body 10 is disposed as close as possible to the opening / closing door body 5 by receiving movement guidance from the upper and lower ends of the upper and lower frame bodies 6 and 7, The heat insulating door body 10 in the fully open position does not get in the way, and the opening / closing operation is performed smoothly. In a state where both the opening / closing door body 5 and the heat insulating door body 10 are in the fully closed posture and the opening 3a is closed, a predetermined space in which the opening / closing door body 5 and the heat insulating door body 10 are close to each other, that is, It functions like a double door (double sash) installed side by side with a heat insulation space, and is configured to exhibit high heat insulation performance.

  A weight 13 is connected to a door end side end of the heat insulating door body 10 through a wire 13a. The weight 13 is provided in a state where the wire 13a hangs downward on the door end side of the opening 3a by suspending the pulley 13b, and is configured to urge the heat insulating door body 10 toward the fully closed posture. The weight 13 corresponds to the biasing means of the present invention. Of course, the urging means is not limited to the weight 13, and any structure may be used as long as it urges the heat insulating door body 10 to be in a fully closed position, such as a mechanism using an ammunition. Also good.

And the heat insulation door body 10 distribute | arranged to the opening-and-closing door body 5 close | similarly is comprised so that it may be hold | maintained in the fully open attitude | position which functions as a door pocket of the door body 5 for opening / closing by the full open holding means of this invention. ing.
In other words, the upper receiving piece 10 b of the heat insulating door 10 is integrally provided with the latch receiving body 10 e located at a portion facing the gap S of the upper frame 6. On the other hand, in a portion of the upper frame 6 that faces the gap S of the upper frame 6c, a through hole (not shown) faces the door end side end of the latch receiving body 10e of the heat insulating door 10 in the fully closed posture. Z)) has been established. A mounting bracket 3h is integrally fixed to the escape passage side surface 3b of the wall 3 facing the lower side of the through hole, and the regulating member 14 corresponding to the fully open holding means of the present invention is fixed to the mounting bracket 3h. Is supported. As shown in FIGS. 7A and 7B, the restricting member 14 includes a support body 14a fixed to the mounting bracket 3h, a lock piece 14b that moves forward and backward in the support body 14a, An urging ammunition (not shown) that urges the lock piece 14b upward is configured.
The lock piece 14b is configured to have a locking posture that protrudes upward (advances) through the through hole of the upper frame 6c in a natural state where the lock piece 14b is urged by the urging ammunition. In this state, the lock piece 14b is configured to abut on the lock receiving body 10e of the heat insulating door body 10 urged toward the closing direction by the weight 13 so that the heat insulating door body 10 is fully opened. It is configured to be held in a posture. Further, when the lock piece 14b is transformed into a release posture in which the lock piece 14b is retracted downward against the urging force of the urging ammunition, the lock piece 14b is unlocked from the heat insulation door body 10 and the heat insulation door body 10 is fully opened. It is configured to release the holding.

The lock piece 14b of the restricting member 14 is formed with a ring-shaped wire connecting piece 14c at the lower end, and the constituent member of the forced closing means of the present invention for controlling the advancement / retraction of the lock piece 14b to the wire connecting part 14c. One end of the working wire 15 is connected.
Here, the working wire 15 is composed of an outer wire 15a and an inner wire 15b, and one end of the working wire 15 is connected to the wire connecting portion 14c of the lock piece 14b with the inner wire 15b exposed from the outer wire 15a. The other end of the working wire 15 extends toward the door end side. The inner wire 15b exposed to the outside at the connecting portion with the regulating member 14 is suspended on the lower frame 6d by suspending a pulley 15c fixed to the auxiliary frame 6i fixed to the lower frame piece 6d. The outer wire 15a is configured to extend along the outer end of the pulley 15c at the door end side portion, and one end of the outer wire 15a is fixed to the lower frame 6d.

The other end of the operating wire 15 is connected to a wire control device 16 provided on the door end side of the lower frame 6d, and the wire control device 16 constitutes the forced closing means of the present invention together with the operating wire 15. ing.
That is, the wire control device 16 is movable so as to be slidably displaced along a fixed plate 16a fixed to the lower frame 6d and a long hole 16b that is long in the left-right direction provided on the door bottom side of the fixed plate 16a. And a body 16c. Further, the wire control device 16 is provided with an urging ammunition 16d for urging the movable body 16c toward the door tip side between the door end side end of the fixed plate 16a and the movable body 16c. A temperature fuse 16e that cuts when reaching a preset high temperature (for example, a temperature that is 100 degrees and cannot be approached by a person) is formed between the door edge side end of the plate 16a and the movable body 16c. In a state of normal temperature that is integrally connected and the thermal fuse 16e is not cut, the movable body 16c is forcibly positioned on the door bottom side of the long hole 16b against the urging force of the urging bullet 16d. It is configured.
Then, by connecting the other end portion of the inner wire 15b constituting the operating wire 15 to the movable body 16c, the regulating member 14 and the wire control device 16 are interlocked and connected, and the other end portion of the outer wire 15a. Is configured to be fixed to the fixing plate 16a. The length of the inner wire 15b of the working wire 15 is determined in the state where the vicinity of the opening 3a is normal temperature and the temperature fuse 16e is not cut and the movable body 16c is located on the door bottom side of the long hole 16b. The length is set so as to be tensioned between the locking piece 14b (the regulating member 14) which is in the locking posture by receiving the urging force of the impacting machine.

In the forced closing means configured as described above, when there is no abnormality such as a fire and the vicinity of the opening 3a is at a normal temperature, the movable body 16c is positioned on the door bottom side of the long hole 16b as described above. The locking piece 14b of the regulating member 14 is held in the locking posture, and in this state, the locking receiving piece 10d of the heat insulating door body 10 is locked from the door bottom side with respect to the locking piece 14b in the advanced position. Thus, the heat insulating door body 10 is configured to be held in a fully open posture.
On the other hand, when a fire or the like occurs and the temperature in the vicinity of the opening 3a rises and reaches the set high temperature and the temperature fuse 16e is cut, the movable body 16c is biased by the biasing bullet 16d. And is displaced toward the door tip side while being guided by the long hole 16b, and pulls the other end portion of the inner wire 15b connected to the movable body 16c toward the door tip side, whereby the inner wire 15b One end is configured to be pulled downward via the pulley 15c. At this time, the urging force of the urging ammunition 16d is the sum of the urging force of the urging ammunition that urges the lock piece 14b to the locking position and the load acting from the heat insulating door body 10 acting on the lock piece 14b. It is set to be larger. As a result, the lock piece 14b of the regulating member 14 connected to one end of the inner wire 15b is pulled downward and is forced to change from the locked position to the released position. In this state, the locking of the locking piece 14b and the locking receiving piece 10d of the heat insulating door body 10 is released, and the heat insulating door body 10 starts the closing operation based on the urging force by the weight 13, and is in the fully closed posture. It is configured to transform into.
Of course, the wire control means constituting the forced closing means is not limited to the above-described structure. However, the use of a thermal fuse eliminates the need for electrical wiring and provides high temperature even during a power failure. As a result, there is an advantage that the heat insulating door 10 can be surely brought into a fully closed posture. Further, the thermal fuse can select the cutting temperature, and can be appropriately selected according to the installation environment and use state.

The door device 4 configured as described above is provided at a plurality of locations in the tunnel length direction on the wall body 3 in the tunnel having a long overall length. In this case, a fire occurs at any location, and the vicinity of the location is high. When the atmosphere becomes so high that a person cannot approach, the heat insulating door body 10 is automatically closed for the door device 4 of the part, and the wall body 3 that partitions the main passage 1 and the evacuation passage 2 from each other. Even if the opening 3a formed in the door is closed by both the opening / closing door body 5 and the heat insulating door body 10, the weight is reduced and the fire resistance performance and heat insulating performance by the opening / closing door body 5 cannot be expected. The high fireproof performance and heat insulation performance by the heat insulation door body 10 are demonstrated, and it is comprised so that the fireproof performance and heat insulation performance in the opening part 3a can be ensured. In addition, in a state where both the opening / closing door body 5 and the heat insulating door body 10 are in a fully closed posture, it is also excellent because it functions like a double door arranged side by side with a heat insulating space. It is comprised so that heat insulation performance can be demonstrated.
Moreover, in the opening 3a under a temperature condition where the temperature is not so high and a person can evacuate, only the lighter opening / closing door body 5 closes the opening 3a, and the refugee is reduced in weight. By opening the opening / closing door body 5, the evacuation can be evacuated to the evacuation passage 2 side, and quick evacuation can be performed. As a result, the smooth evacuation to the evacuation passage 2 is not impaired, and the influence of the heat on the main passage 1 side on the evacuation passage 2 side, which is a narrow space, through the opening 3a can be reliably reduced. It is configured to be able to.

In the fully closed position of the door 5 for opening and closing, as described above, the door-side end 5d is immersed in the groove 3d of the door-side piece 3c in the entire vertical direction with respect to the door-side portion. Smoke prevention means are provided in the entire vertical direction on the main passage 1 side of the door butt side portion, and a stopper receiving piece 7b is provided on the lower end portion of the evacuation passage 2 side of the door butt side portion. As a result, there is provided a warp prevention means for restricting deformation in the front and back directions at both the door tip side and the door bottom side of the door body 5 for opening and closing, and the door body 5 for opening and closing is heated at a high temperature. Since it is prevented from warping, there is no problem that a gap is formed in the opening 3a at a high temperature. However, in this case, since the heat warpage is prevented, the heat insulating door body 10 is completely at a high temperature. Proximity when closing in closed position The thermal warping of the opening / closing door body 5 that is arranged does not impair the closing of the heat insulating door body 10, whereby the heat insulating door body 10 can be smoothly and quickly transformed into a fully closed position. It is configured as follows.
In addition, although not shown, between the heat insulation door body 10 and the opening / closing door body 5, interlocking means for opening the heat insulation door body 10 in conjunction with the opening operation of the opening / closing door body 5 is provided. For example, the opening 3a can be opened even when an unexpected situation occurs in which the heat insulating door 10 is closed despite not having a high temperature atmosphere.

In the present embodiment configured as described, the door device 4 provided on the wall body 3 that partitions between the main passage 1 and the evacuation passage 2 provided on the side of the main passage 1 like a long tunnel is Between the fully closed position where the open / close door body 5 is covered with the open / close door body 5 and the open / close door body 5 is exposed to the outside on the side of the escape passage 2 of the open / close door body 5 A movable heat insulating door body 10 that slides is provided. The heat insulating door 10 is biased to the fully closed position by the weight 13, and the temperature of the regulating member 14 that holds the fully open position against the biasing force of the weight 13 and the temperature in the vicinity of the opening 3a are preset. As the high temperature (for example, 100 degrees) is reached, an operation wire 15 and a wire control device 16 that release the holding of the heat insulating door 10 by the regulating member 14 in the fully open position are provided. As a result, among the plurality of door devices 4 provided in the tunnel, with respect to the door device 4 provided at a location that has reached a high temperature, the opening / closing door body 5 and the heat insulating door body 10 having high fire resistance and heat insulation performance; Both of them close the opening 3a, and it is possible to reduce the influence of heat generated on the main passage 1 side on the evacuation passage 2 side. In this case, since the heat insulating door body 10 and the opening / closing door body 5 are juxtaposed in parallel and a heat insulating space is formed between them, the opening 3a is closed as if it were a double door, A higher heat insulating effect can be exhibited.
In addition, the door device 4 at a high temperature that cannot be approached by the person is configured to close the opening 3a with the heat insulating door body 10 having high fire resistance and heat insulation performance. As for the fireproof performance and heat insulation performance on the opening / closing door body 5 side to be operated, the performance can be reduced and the weight can be reduced, so that the opening / closing door body 5 can be reduced in weight and opened / closed. The opening operation of the door body 5 can be performed smoothly and quickly, and prompt evacuation can be realized.
In addition, since the heat insulating door body 10 is closed on the side of the evacuation passage 2, it can be determined that the portion near the portion where the heat insulating door body 10 is disposed is hot, or the temperature is high. There is also an advantage that the direction can be selected and can be used as a specific judgment material for the fire site.

  As described above, in the embodiment of the present invention, the opening 3a is provided with the opening / closing door body 5 and high fire resistance and heat insulation performance, and is laminated on the opening / closing door body 5 as the temperature rises. By providing the door device 4 provided with the heat insulating door body 10 that closes the opening 3a, the influence of heat that spreads to the evacuation passage 2 side when the main passage 1 side becomes a high temperature state is reduced. However, in this case, since the temperature fuse 16e is used as the constituent member of the forced closing means for forcibly closing the heat insulating door body 10 when the temperature becomes high, even during a power failure The heat insulating door 10 can be surely brought into the fully closed posture. In addition, it is not necessary to have a complicated and expensive configuration for providing a mechanism for forcibly closing the heat insulating door 10 using a temperature sensor using an electronic component, which can contribute to simplification of the configuration and cost reduction.

  Further, a plurality of door devices 4 are provided in a tunnel having a long overall length. The door device 4 at a location where a person cannot approach the evacuation passage 2 due to high temperature and the heat insulating door body 10 is closed to prevent fire. The door device 4 at a location where the heat insulation effect is enhanced and the temperature of the evacuation passage 2 with low temperature can be accessed is in a state in which the opening 3a is closed by the lighter opening / closing door body 5, so that the opening / closing door for evacuation is provided. The opening operation of the body 5 is light, prompt evacuation is not impaired, and temperature rise on the evacuation passage 2 side can be reduced.

  Moreover, in this thing, in the fully closed posture of the door body 5 for opening and closing, the door device side end 5d is formed in the groove 3d of the door tip side piece 3c in the entire vertical direction with respect to the door tip side portion. It is in an immersive state, smoke passage prevention means is provided in the entire vertical direction on the main passage 1 side of the door butt side portion, and a stopper is provided on the lower end portion of the door butt side portion on the evacuation passage 2 side. Since the receiving piece 7b is provided, the warp prevention means is provided to prevent deformation in the front and back direction at both the door tip side and the door bottom side of the door body 5 for opening and closing. The door body 5 is prevented from being warped in a curved shape, and not only a gap is not formed in the opening 3a, but also the heat insulating door body 10 disposed close to the opening / closing door body 5. Is difficult to close by the door body 5 for opening and closing warped. Defect UNA can be prevented reliably, it is possible to provide a door device 4 having a heat insulating door 10 reliable movable.

  Furthermore, since the heat insulating door 10 is disposed in close proximity to the wall 3 in the fully open posture, it is not necessary to adopt a configuration corresponding to the wind pressure, and aggregates can be eliminated, and the heat insulating performance can be improved. Since it functions as a door pocket of the opening / closing door body 5 together with the body 3, there is also an advantage that the upper and lower guide rails 6a, 7a for the opening / closing door body 5 can be protected.

  INDUSTRIAL APPLICABILITY The present invention can be used for a door device provided at an entrance / exit for moving back and forth between sections when a wide space is partitioned by a wall body or the like to form a plurality of sections.

1 main passage 2 evacuation passage 3 wall 3a opening 4 door device 5 door for opening / closing 6 upper frame 6a upper guide rail 6c upper frame 6h roller guide 7 lower frame 7a lower guide rail 7c traveling rail 8 closing control unit DESCRIPTION OF SYMBOLS 10 Heat insulation door body 11 Guide roller 12 Door pulley 13 Weight 14 Restriction member 14b Lock piece 15 Actuation wire 16 Wire control apparatus 16c Movable body 16d Energizing ammunition machine 16e Thermal fuse

Claims (5)

  A fully-closed posture in which the opening and closing door body that opens and closes the opening formed on the wall body that partitions the space is laminated on the opening and closing door body that closes the opening and covers the opening and closing door body, and the opening A movable heat insulating door body that is slidably movable between a fully open posture that exposes the opening and closing door body that closes the door, and a biasing means that biases the heat insulating door body toward the fully closed posture; The fully open holding means that holds the fully open posture against the biasing force of the biasing means, and the fully open posture holding by the fully open holding means is released as the temperature near the opening reaches a preset high temperature. A door device provided with a movable heat insulating door, characterized in that a forced closing means for forcibly closing the heat insulating door is provided.   The door device provided with the movable heat insulating door body according to claim 1, wherein the forcibly closing means is configured using a thermal fuse.   The movable door according to claim 1 or 2, wherein the opening / closing door body and the heat insulating door body are provided in an opening of a wall body that partitions between the main passage space and the escape passage space in the tunnel. Door device equipped with a heat insulating door.   The door device provided with the movable heat insulating door body according to any one of claims 1 to 3, wherein the opening / closing door body is provided with a warp prevention means for preventing the door body from warping.   The door device provided with the movable heat insulating door according to any one of claims 1 to 4, wherein the heat insulating door is configured to function as a door pocket of the door for opening and closing.

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