JP3007586B2 - Disaster prevention shutter device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention shutter device, and more particularly to a device for preventing the spread of smoke and the spread of fire in a fire.

[0002]

2. Description of the Related Art Conventionally, as this type of disaster prevention shutter device, for example, vertical guide rails are respectively provided upright to the left and right portions of a shielded portion, and wound between upper end portions of the left and right guide rails. The take drum is provided rotatably,
A steel shutter guided by the left and right guide rails and lowered is wound around the winding drum so as to be rewound freely, and the steel shutter is rotatably engaged with each of both side ends. 2. Description of the Related Art There is known a configuration including a number of slats connected in a vertical direction and a landing body attached to a slat at the lowermost end thereof and landing on the floor surface of the shielded portion when descending.

[0003]

Since the conventional disaster prevention shutter device uses a steel shutter, when the steel shutter is lowered to completely close the shielded part in the event of a fire, the steel shutter is used. The shielded portion is reliably blocked, making it difficult to evacuate or perform rescue operations from the near side of the steel shutter to the opposite side or from the opposite side of the steel shutter to the near side. When the steel shutter is lowered, it may be injured if it is caught between the floor of the steel shutter and the floor of the shielded part. Obstacles are often scattered on the floor of the part, and there is a problem that the lowering of the steel shutter is alienated by the obstacle, making it difficult to completely close the shielded part.

[0004] The present invention has been made in view of such a point, and even if the shielded portion is completely closed and the shielded portion is shut off in the event of a fire, the shielded portion is moved from the near side to the opposite side or to the opposite side. It is easy to evacuate toward the front side and perform rescue activities, and there is no injury by the shielding member when the shielded part is fully closed, and obstacles are scattered on the floor of the shielded part It is another object of the present invention to provide a disaster prevention shutter device capable of reliably completely closing the shielded portion.

[0005]

According to a first aspect of the present invention, there is provided a disaster-prevention shutter device which is capable of opening and closing a shielded portion.
A fire-resistant sheet container attached to the lower end of the turret and having an opening on the lower surface, a lid provided on the fire-resistant sheet container for opening and closing the drop opening of the fire-resistant sheet container, and a container housed in the fire-resistant sheet container. flame retardant refractory sheet member for shielding the hidden part to fall from the drop opening upon opening of the chute on the floor of the shielding part is, during the non-fire the state of closing the front Symbol chute A hot-melt material that holds the lid and is blown off by the heat of the fire in the event of a fire so that the drop port can be opened.

In a non-fire situation, the drop opening of the fire-resistant sheet container accommodating the fire-retardant fire-resistant sheet is closed by a lid, and the fire-retardant fire-resistant sheet is placed so that it does not fall from the drop. It is housed in the housing. Therefore, at the time of non-fire, it is possible to easily pass through the shielded portion from the near side to the opposite side or from the opposite side to the near side.

[0007] In the event of a fire, the heat generated by the fire melts off the hot-melt material, opens the lid to open the drop opening of the fireproof sheet container, and from this drop opening, it is difficult to reach the floor of the shielded part. The flammable refractory sheet falls, and the part to be shielded is shielded by the flame-retardant refractory sheet and is completely closed.

When evacuating from the near side to the opposite side or from the opposite side to the near side of the flame-retardant fire-resistant sheet body shielding the shielded portion, or performing rescue operations, the fire-retardant fire-resistant sheet is used. By pushing or lifting a predetermined position of the body, the floor of the shielded part is easily opened as an emergency exit, and the person can easily evacuate or perform rescue activities from the emergency exit.

Further, even if the lower end portion of the flame-retardant fire-resistant sheet comes in contact with the flame-retardant fire-resistant sheet, the flame-retardant fire-resistant sheet is made of a sheet. Even when sandwiched between the lower end of the body and the floor of the shielded part, the flame-retardant fire-resistant sheet prevents the injury.

In addition, even if obstacles are scattered on the floor of the shielded part where the flame-retardant fire-resistant sheet descends when the shielded part is shielded, the lower end portion of the flame-retardant fire-resistant sheet covers the obstacle. In this state, the shielded portion is dropped on the floor surface of the shielded portion, so that the shielded portion is completely closed by the flame-retardant fire-resistant sheet without being alienated by obstacles.

Further, the shield portion is surely completely closed by the flame retardant refractory sheet being dropped from the steel shutters and fireproof sheets containing body, fire and spread of smoke in a fire can be reliably prevented.

In a state where the shielded portion is fully closed,
When evacuating from the near side to the opposite side of the flame-retardant fire-resistant sheet body, or from the opposite side toward the near side, or performing rescue operations, push or lift a predetermined position on the fire-resistant fire-resistant sheet body. Thereby, the floor of the shielded portion is easily opened as an emergency exit, and it is possible to easily evacuate or perform rescue activities from this emergency exit.

[0013] disaster prevention shutter device according to claim 2, wherein, in the disaster prevention shutter device according to claim 1 Symbol placement, refractory sheet container body, the steel shutters to be stopped at a predetermined position on the floor surface of the shielding part in a fire Is provided at the lower end of the.

In the event of a fire, the steel shutter is lowered, for example, and the refractory sheet container at the lower end of the steel shutter is lowered to a predetermined position on the floor of the shielded part, and the steel shutter is lowered. The descent is stopped, and the fireproof sheet container is stopped at a predetermined position on the floor surface of the shielded portion.

Further, the heat melting material is blown off by the fire heat, and the lid is opened to open a drop opening of the fire-resistant sheet container. From the drop hole, the flame-retardant fire-resistant sheet is placed on the floor of the shielded part. The body falls, and the shielded portion is completely closed by the flame-retardant fire-resistant sheet.

At this time, even if obstacles are scattered on the floor of the shielded part where the flame-retardant fire-resistant sheet descends, the lower end of the flame-retardant fire-resistant sheet is covered with the obstacle covered. The part to be shielded is securely closed completely by the flame-retardant fire-resistant sheet without being alienated by obstacles.

When evacuating from the near side to the opposite side or from the opposite side to the near side of the flame-retardant fire-resistant sheet body shielding the shielded portion, or performing rescue activities, the flame-retardant fire-resistant sheet is used. By pushing or lifting a predetermined position of the body, the floor of the shielded part is easily opened as an emergency exit, and the person can easily evacuate or perform rescue activities from the emergency exit.

[0018] The disaster prevention shutter device according to claim 3 is provided below.
A fireproof sheet container with a drop opening on the surface and this fireproof
Port of the fireproof sheet container
A lid that can be opened and closed, and
At the time of opening of the drop opening, from this drop opening onto the floor of the shielded part
A flame-retardant fire-resistant sheet that drops to cover the shielded part,
In the event of a fire, hold the lid with the dropper closed.
In the event of a fire, the fire is melted off and the above-mentioned fall opening can be opened.
; And a hot melt material to ability, the hot melt materials are fire
Plural hot-melt materials with different fusing temperatures that are blown by disaster heat
Having a low fusing temperature among the plurality of hot melt materials.
Hold the lid with the molten material and put it inside the fireproof sheet container.
Multiple folds of fire-retardant fire-resistant sheet body arranged side by side
The fusing temperature is
It is supported by another heat-melting material that becomes higher in order .

By providing a fire-resistant sheet housing housing a flame-retardant fire-resistant sheet body on the ceiling of the shielded portion,
The disaster-prevention shutter device is compactly housed in the ceiling of the shielded part, and its construction is simple, and the fire-retardant fire-resistant sheet body is properly arranged by fitting the lid of the fireproof sheet to the ceiling surface of the shielded part. Then, in a non-fire situation, the shielded portion is sufficiently used as a normal passage.

Further, during fire the fire heat by a plurality of hot melt material is sequentially blown into the order of the fusing temperature at which sequentially increases from a low fusing temperature. That is, a low-melting temperature hot-melt material to which a lid is attached among a plurality of hot-melt materials is first melted, and when a drop opening of a refractory sheet container is opened by this lid, a flame-retardant fire-resistant sheet is formed. The hot-melt material supporting the first fold on the lower end side of the flame-retardant fire-resistant sheet in the plurality of folds of the body is blown, and the first fold is folded while the fire-retardant fire-resistant sheet is folded. The body is dropped from the drop opening of the fire-resistant sheet container, and the lower end of the fire-resistant fire-resistant sheet member hangs down below the fire-resistant sheet container.

Then, the hot-melt material supporting the second fold following the first fold is melted off, and the second fold is folded back so that the flame-retardant refractory sheet is inserted into the refractory sheet container. And the lower end portion of the flame-retardant fire-resistant sheet body further hangs down below the fire-resistant sheet container.

In this manner, the respective heat-melted materials supporting the third and subsequent folded portions are sequentially blown, and the flame-retardant refractory sheet body is sequentially dropped from the drop opening of the refractory sheet container. The lower end of the flame-retardant fire-resistant sheet body hangs down gradually in the middle of the lower part of the fire-resistant sheet container.

Therefore, in the initial stage of the fire, the flame-retardant refractory sheet functions as a smoke-proof screen, and at the same time, the lower end of the flame-retardant refractory sheet hanging down in the middle of the shielded part and the floor of the shielded part. The space between the two is secured as a passage for evacuation and rescue operations. And finally, the lower end portion of the flame-retardant fire-resistant sheet body is dropped on the floor of the shielded part,
The shielded portion is completely closed by the flame-retardant refractory sheet.

According to a fourth aspect of the present invention, there is provided a disaster prevention shutter device, comprising:
A fireproof screen that is provided on the ceiling of the shield and has an opening on the bottom
Sheet container and the fireproof sheet container.
A lid for opening and closing a drop opening of the fire sheet container;
When the fall port is opened,
Drops from the mouth onto the floor of the shielded part to cover the shielded part
Close the fire-retardant fire-resistant sheet and the above-mentioned fall opening in case of non-fire.
The cover is held in a state where
And a hot-melt material that allows the opening of the drop port.
And falls on the floor surface in the fireproof sheet container.
The lower end of the flame-retardant fire-resistant sheet that shields the shielded part
Pull up to a predetermined position on the floor and open as an emergency exit
An emergency exit opening means is provided .

In a fire, in a state where the shielded portion is completely closed by the flame-retardant fire-resistant sheet, the emergency exit opening means is operated so that the lower end of the flame-retardant fire-resistant sheet is placed on the floor. It is lifted to a predetermined position, and is easily and quickly opened with the lower end portion of the flame-retardant refractory sheet as an emergency exit. Therefore, evacuation of many people and rescue operations of many people are facilitated.

[0026]

Embodiments of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 1 to 3, reference numeral 1 denotes left and right vertical guide rails which are vertically fixed to opposing side walls of the shielded portion 2, respectively. The left and right guide rails 1 are formed to have a substantially U-shaped cross section with an opening 3 in the vertical direction opened on the opposing surfaces facing each other. The shielded portion 2 means an opening such as an entrance, an emergency exit, and a passage.

Further, a shutter box 5 in which the upper ends of the left and right guide rails 1 are inserted is fixed to an upper side wall portion 4 such as an upper frame body of the shielded portion 2. Left and right guide openings 6 open to communicate with the insertion openings 3 of the left and right guide rails 1 respectively.
Are formed.

A take-up shaft 8 having a take-up drum 7 in the left-right direction is rotatably mounted in the shutter box 5, and one end of the take-up shaft 8 drives the take-up shaft 8 to rotate. The rotating wheel 9 is fixed. In addition, a forward / reversely rotatable motor 10 is fixed below the rotating wheel 9 in the shutter box 5, and a driving wheel 12 is fixed to an output shaft 11 of the motor 10 at a position facing the rotating wheel 9. An endless rotating body 13 is suspended between the driving wheel 12 and the rotating wheel 9 so as to freely rotate.

Further, control means 14 for controlling the operation of the motor 10 is provided in the shutter box 5. The control means 14 includes an output means for detecting a fire when a fire occurs and outputting an operation signal for normal rotation for lowering a steel shutter to be described later to the motor 10; In place on the floor 15 of the
For example, detecting means for detecting a point in time when the fireproof sheet container is lowered to about 1 m on the floor surface 15 and outputting a stop signal to the motor 10, and an operation for reversing the motor 10 to raise a steel shutter. Detecting means for outputting a signal.

Next, an upper end of a vertically movable steel shutter 16 for opening and closing the shielded portion 2 is fixedly wound around the winding drum 7 and wound around the lower end of the steel shutter 16 in the left-right direction. A flammable fireproof sheet container 17 is connected. The fireproof sheet container 17 is provided with the steel shutter 16.
Is formed with a length substantially equal to the width. Then, the steel shutter 16 having the refractory sheet container 17 at its lower end is moved up and down with both ends in the width direction inserted into the insertion openings 3 of the left and right guide rails 1 by rewinding the winding drum 7. It has become so.

The steel shutter 16 has a large number of slats 19 in the left and right direction with both ends inserted into the insertion openings 3 of the left and right guide rails 1 with a predetermined width.
Reference numeral 19 denotes a substantially wavy shape having engaging edges 20 formed on both side edges in the width direction in a substantially semicircular shape in opposite directions. And each adjacent slat
A plurality of slats 19 are vertically connected to each other by engaging engagement edges 20 of the vertically opposed engagement edges 20 of the plurality of slats 19.

The refractory sheet container 17 includes front and rear side plate portions 21 which are separated from each other by a predetermined distance, and a top plate portion 22 integrally formed between upper ends of the front and rear side plate portions 21.
And the slat at the lowermost end portion fixed on the top plate portion 22
And a mounting plate portion 24 formed with a substantially semicircular mounting portion 23 engaged with and attached to the lower engaging edge 20 of 19, and formed into a flat box shape having an opening 25 on the lower surface. Is formed. The refractory sheet container 17 has insertion projections (not shown) inserted into the insertion openings 3 of the left and right guide rails 1 at both ends.

One end of a lid 27 that opens and closes the drop port 25 with a hinge 26 is rotatably attached to the lower end of one of the front and rear side plates 21. The other end of the lid 27 is attached to and held at the lower end of the other side plate 21 by a hot-melt material 28. The hot-melt material 28
In the event of a non-fire, the lid 27 is kept closed with the drop port 25 closed, and in the event of a fire, the fire in the initial stage of this fire, the fire heat whose ambient temperature has risen to a predetermined height due to hot air, etc. It is configured to be blown and open the drop port 25 .
Then, when the hot-melt material 28 is blown off by the heat of fire, the lid 27 is rotated down around the hinge 26 to open the drop port 25. The hot-melt material 28 is made of a low melting point metal such as lead, for example, and is formed in a flat plate shape.

Next, when the drop port 25 is opened in the refractory sheet container 17, it falls from the drop port 25 onto the floor surface 15 of the shielded portion 2 to shield the shielded portion 2. A refractory sheet body 29 is accommodated.

The flame-retardant refractory sheet 29 is formed of a plurality of vertically extending flame-retardant refractory sheets formed of a flexible material such as glass cloth, glass silica or the like with a predetermined width. Composed of sheet 30, this multiple flame-retardant fireproof sheet
Numerals 30 are juxtaposed in such a manner that both side ends in the width direction overlap each other with an overlapping margin 31, and each upper end is provided with a plurality of fittings on the inner upper end of one side plate 21 of the fireproof sheet container 17. At 32, they are attached together.

At the lower end of the plurality of flame-retardant refractory sheets 30, there is provided a flooring body 33 which also serves as a relatively flexible round bar-shaped weight which is landed on the floor surface 15 of the shielded part 2. Each is integrally fixed. Each of the landing bodies 33 is formed to have substantially the same length as the width of the lower end of each of the flame-retardant fire-resistant sheets 30.
Then, the plurality of flame-retardant fire-resistant sheets 30 are stored in the fire-resistant sheet container 17 in a state where they are folded and overlapped in the vertical direction while the overlapping margins 31 that are adjacent to each other overlap each other. Have been.

When the plurality of fire-retardant fire-resistant sheets 30 are dropped onto the floor surface 15 of the shielded portion 2 from the drop opening 25, the overlap 31 of the adjacent fire-retardant fire-resistant sheets 30 is formed. Each of the landing bodies 33 is placed on the floor surface 15 of the shielded part 2 in a state where the floor bodies are overlapped with each other, and is generally arranged in a substantially goodwill shape.

Therefore, the plurality of flame-retardant refractory sheets 30 and the steel shutter 16 shield the shielded portion 2 and fully close it. Then, the flame-retardant fire-resistant sheet 30 selected from the plurality of flame-retardant fire-resistant sheets 30 is
For example, by pushing or pulling up, the sheet is easily separated from the fire-resistant fire-resistant sheet 30 adjacent thereto, and the fire-resistant fire-resistant sheet 30 is opened as an emergency exit.

The plurality of flame-retardant refractory sheets 30 and the plurality of landing bodies 33 of the flame-retardant refractory sheet body 29 are made of a material which is highly resistant to fire heat at the time of fire and does not easily burn.

Next, the operation of the above embodiment will be described.

At the time of non-fire, the fall port 25 of the fire-resistant sheet container 17 containing the flame-retardant fire-resistant sheet body 29 is closed by the lid 27, and the fire-resistant fire-resistant sheet body is prevented from falling from this drop port 25. 29 are accommodated in the fireproof sheet accommodating body 17. Therefore, at the time of non-fire, it is possible to easily pass through the shielded portion 2 from the near side to the opposite side or from the opposite side to the near side.

In the event of a power failure due to a fire, the brake of the motor 10 is released by an operation signal from the output means, and the winding shaft 8 becomes free. While being rewound sequentially from 7, it is guided by the left and right guide rails 1 and descends.

At this time, the insertion projections on both sides of the steel shutter 16 and both sides of the refractory sheet container 17 are respectively lowered along the insertion openings 3 of the guide rails 1 on both sides. The steel shutter 16 and the fireproof sheet container 17 at the lower end of the steel shutter 16 are smoothly lowered.

When an operation signal is output to the motor 10 from the output means that detects the heat of the fire, the motor 10
Is operated, and the winding shaft 8 is rotated in the direction of rewinding the steel shutter 16 by the output from the motor 10, and the steel shutter 16 is sequentially rewound by the winding drum 7 of the winding shaft 8. While being guided by the left and right guide rails 1 and lowered.

Then, the refractory sheet container 17 at the lower end of the steel shutter 16 is placed at a predetermined position on the floor surface 15 of the shielded portion 2, for example, the refractory sheet container 17 is 1 m above the floor surface 15.
When the fire-resistant sheet container 17 is lowered to about the level, the fire-resistant sheet container 17 is detected by the detection means, and a stop signal is output from the detection means to the motor 10, and the brake of the motor 10 is activated and
10 is stopped, the lowering of the steel shutter 16 is stopped, and the fireproof sheet container 17 is
Stop at about 1m above 15

Further, the heat melting material 28 is generated by the heat of the fire.
Is melted, and the lid 27 is pivoted down about the hinge 26 so that the fireproof sheet container 17 is
The flame-retardant refractory sheet body 29 falls by its own weight from the fall port 25 onto the floor surface 15 of the shielded portion 2. Then, when the flooring body 33 at the lower end of the flame-retardant fire-resistant sheet body 29 is placed on the floor surface 15 of the shielded part 2, the flame-retardant fire-resistant sheet body 29 and the flame-retardant fire-resistant sheet body Covered part 2 by steel shutter 16 with 29 at the lower end
Is shielded and fully closed.

At this time, since the flame-retardant fire-resistant sheet 29, that is, the plurality of flame-retardant fire-resistant sheets 30 are folded and stored in the fire-resistant sheet container 17, a plurality of flame-retardant fire-resistant sheets are provided at the time of fire. 30 drops orderly and orderly under their own weight.

Further, even when the plurality of flame-retardant fire-resistant sheets 30 come into contact with the lower ends of the plurality of flame-retardant fire-resistant sheets 30 when the fire-resistant fire-resistant sheet body 29 falls,
Since the plurality of fire-retardant fire-resistant sheets 30 are made of a sheet material of a flexible material, even when the fire-retardant fire-resistant sheets 30 are sandwiched between the lower end portion of each of the fire-resistant fire-resistant sheets 30 and the floor surface 15 of the shielded portion 2 Each of the flame-retardant refractory sheets 30 prevents an unexpected situation such as injury.

Further, even if obstacles are scattered on the floor surface 15 of the shielded part 2 where the flame-retardant fire-resistant sheet 29 descends when the shielded part 2 is shielded, the lower end of each of the flame-retardant fireproof sheets 30 The part is dropped on the floor surface 15 of the shielded part 2 while covering the obstacle,
Therefore, the shielded portion 2 is securely completely closed by the respective flame-retardant fire-resistant sheets 30 without being alienated by obstacles.

Then, a selected one of the flame-retardant fire-resistant sheets 30 of the flame-retardant fire-resistant sheet body 29 covering the shielded portion 2 is moved from the near side to the opposite side or to the opposite side. When evacuating from the front to the front side or performing rescue activities, one flame-retardant fire-resistant sheet 30 is pushed or lifted so that the floor of the shielded part 2 is covered with this one flame-retardant fire-resistant sheet 30. Surface 15 is easily opened as an emergency exit,
You can easily evacuate and rescue from this emergency exit.

That is, the plurality of flame-retardant fire-resistant sheets 30 of the flame-retardant fire-resistant sheet body 29 are arranged side by side so as to overlap each other, with the respective side edges in the width direction overlapping each other. Since the shielded portion 2 is completely closed by shielding the shielded portion 2 with the sheet 30, one of the flame-retardant fire-resistant sheets 30 selected from the respective fire-resistant fire-resistant sheets 30 is moved from the near side to the opposite side or the opposite side. By pushing or lifting from the front to the near side, the overlap allowance 31 of both ends of this one fire-resistant fire-resistant sheet 30 is easily separated from the overlap allowance 31 of the adjacent fire-resistant fire-resistant sheet 30, This one fire-resistant fire-resistant sheet 30 is easily opened as an emergency exit, and can easily escape through this emergency exit or perform rescue activities, and can contribute to these activities.

Next, in the first embodiment, in the event of a fire, the steel shutter 16 is lowered, and the fireproof sheet container 17 at the lower end of the steel shutter 16 is placed on the floor of the shielded portion 2.
When it descends to a position of about 1m above 15, the steel shutter
The case in which the descent of the fireproof sheet container 17 and the fireproof sheet container 17 is stopped is described, but the invention is not limited thereto. Stop the lowering of 16 and fireproof sheet container 17
Alternatively, the shielded portion 2 may be shielded by the steel shutter 16 and fully closed.

In the event of a fire, the steel shutter 16 is raised, and when the refractory sheet container 17 is raised to a position of about 1 m above the floor surface 15 of the shielded portion 2, the steel shutter 16 is stopped. In addition, the fireproof sheet container 17 may be stopped.

Then, as in the case of the above-described embodiment, the heat melting material 28 of the refractory sheet container 17 is blown off by the heat of the fire, so that the lid 27 is pivoted down about the hinge 26 and falls. The opening 25 is opened, and the flame-retardant refractory sheet body 29 in the refractory sheet container 17 is
Is dropped by its own weight, the shielded portion 2 is shielded by the flame-retardant refractory sheet body 29, and is completely closed.

Further, in the above-described embodiment, the case where the flame-retardant fire-resistant sheet 29 is composed of a plurality of flame-retardant fire-resistant sheets 30 has been described. May be composed of a single flame-retardant refractory sheet body 29.

Next, in the second embodiment shown in FIGS. 4 and 5, the refractory sheet container 17 is
17 is provided on the ceiling 34 of the shielded part 2 with the lid 27 facing the floor surface 15 of the shielded part 2.

In this case, the fire-resistant sheet container 17 is formed in a rectangular and flat box shape having a dropout port 25 opened on the lower surface, and mounting pieces are attached to the lower ends of the front and rear side plates 21 in opposite directions. 35 are protruded horizontally and integrally. Further, a rectangular mounting opening for inserting the fireproof sheet housing 17 from below into a predetermined position on the ceiling 34 of the shielded portion 2.
An opening 36 is provided, and a mounting piece 35 of the fireproof sheet container 17 is brought into contact with an opening edge 37 facing the mounting opening 36 from below.

Then, the fire-resistant sheet container 17 is inserted from below into the mounting opening 36 of the ceiling 34, and the mounting pieces 35 on both sides of the fire-resistant sheet housing 17 contact the opening edges 37 on both sides of the mounting opening 36. In a state where the refractory sheet container 17 is embedded in the ceiling 34 by screwing a plurality of bolts 38 from the mounting pieces 35 on both sides to the opening edges 37 on both sides in the contact state, The fireproof sheet container 17 is fixed to the ceiling 34.

The top plate 22 of the fire-resistant sheet container 17
The upper end portion of the flame-retardant fire-resistant sheet body 29 is fixed by a plurality of fixtures 32, and the fire-resistant fire-resistant sheet body 29 is sequentially folded in the same manner as in the first embodiment, and the fire-resistant sheet container is folded. 17
The falling port 25 is closed with the lid 27 while being housed inside, and the other end of the lid 27 is attached to the lower end on one side of the fireproof sheet container 17 with the hot-melt material 28.

Other configurations are the same as those of the first embodiment. Therefore, the same components as those of the first embodiment are denoted by the reference numerals used in the first embodiment, and the description thereof is omitted. I do.

With this configuration, the fire-resistant sheet container 17 containing the flame-retardant fire-resistant sheet member 29 is provided on the ceiling 34 of the shielded portion 2, so that the disaster-prevention shutter device is provided on the ceiling 34 of the shielded portion 2. The fire prevention shutter device is arranged on the ceiling 34 by aligning the lid 27 that closes the drop opening 25 of the flame-retardant fire-resistant sheet 29 with the ceiling 34. In a non-fire situation, the shielded portion 2 is sufficiently used as a normal passage.

In the event of a fire, the heat generated by the fire melts off the hot-melt material 28, and lowers the lid 27 around the hinge 26. The lid 27 opens the dropout 25. Then, the flame-retardant refractory sheet body 29 is dropped from the falling port 25 toward the floor surface 15 of the shielded portion 2 by its own weight.
And, the landing body 33 at the lower end of the flame-retardant refractory sheet body 29
Is landed on the floor surface 15, whereby the shielded portion 2 is shielded by the flame-retardant refractory sheet 29 and is completely closed.

When evacuating from the near side to the opposite side or from the opposite side to the near side of the flame-retardant refractory sheet body 29 that shields the shielded portion 2 or performing rescue operations, the flame-retardant fire-resistant sheet body 29 is used. By pushing or lifting a predetermined position of the refractory sheet body 29, the floor 15 of the shielded part 2 is easily opened as an emergency exit, and can easily evacuate from this emergency exit.
Rescue operations can be performed.

In the second embodiment, the flame-retardant refractory sheet body 29 is accommodated in the refractory sheet accommodating body 17 at the time of non-fire,
In the event of a fire, the flame-retardant fire-resistant sheet body 29 falls from the fire-resistant sheet container 17 so that the fire-resistant fire-resistant sheet body 29 is rolled into the fire-resistant sheet container 17 or the fire-resistant fire-resistant sheet is removed from the fire-resistant sheet container 17 It is not necessary to provide a winding mechanism of the flame-retardant fire-resistant sheet body 29 for rewinding the body 29 in the fire-resistant sheet container 17, and the flame-retardant fire-resistant sheet member 29 is folded and stored in the fire-resistant sheet container 17. It is well-fitted and compactly housed, has a simple overall configuration, and the shielded portion 2 is quickly shielded by the flame-retardant refractory sheet body 29 that falls under its own weight.

Next, a third embodiment shown in FIGS. 6 and 7 is different from the first embodiment in that a plurality of folded portions 39 and a lid of a flame-retardant fire-resistant sheet body 29 which are folded and arranged in a fire-resistant sheet container 17 are arranged. 27 Multiple heat-fused materials with different fusing temperatures that are blown by fire heat
This is supported at 28.

In this case, one end (upper end) of the flame-retardant fire-resistant sheet body 29 is fixed to one end of the top plate 22 of the fire-resistant sheet container 17 with a fixture 32. A plurality of folded portions 39 are sequentially juxtaposed and folded in the vertical direction toward the other end of the top plate portion 22, and a lower end portion of the fire-resistant fire-resistant sheet body 29 is placed on the lid 27. Then, the landing body 33 at the lower end of the flame-retardant refractory sheet 29 is placed on the other end of the lid 27.

The lid 27 is attached to the refractory sheet container 17 with the lowest melting temperature among the plurality of heat melting materials 28 having different fusing temperatures, and the second lowest fusing temperature. The first fold 39a following the landing body 33 is attached to the top plate 22 and supported by the hot-melt material 28b, and continues to the first fold 39a with the third hot-melt material 28c having the third lowest fusing temperature. The second folding part 39b is attached to and supported by the top plate part 22.
Which is supported third folding portion 39c following the second folding portion 39b fusing temperature Fourth is at a low hot melt material 28d is attached to the top plate 22, fusing temperature is sequentially increased after heat each folds 39n of fourth and subsequent at molten material 28n is that are supported by attaching the top plate 22.

Since other configurations are the same as those in the above-described embodiments, the same components are denoted by the same reference numerals used in the above-described embodiments, and description thereof is omitted.

With this configuration, the fire-resistant sheet container 17 containing the flame-retardant fire-resistant sheet material 29 is provided on the ceiling 34 of the shielded portion 2, so that the disaster-preventive shutter device is provided on the ceiling 34 of the shielded portion 2. The fire prevention shutter device is arranged on the ceiling 34 by aligning the lid 27 that closes the drop opening 25 of the flame-retardant fire-resistant sheet 29 with the ceiling 34. In a non-fire situation, the shielded portion 2 is sufficiently used as a normal passage.

Then, in the event of a fire, the plurality of hot melt materials 28 are sequentially blown by the fire heat in order from a lower fusing temperature to a higher fusing temperature. That is, a plurality of hot melt materials 28
Low melting temperature material 28a with lid 27 attached inside
First, the lid 27 opens a drop port 25 of the fire-resistant sheet container 17, and the lower end portion of the flame-retardant fire-resistant sheet body 29 falls from the drop port 25.

Next, the hot-melt material 28b supporting the first folded portion 39a on the lower end side of the flame-retardant refractory sheet body 29 is blown off, and the first folded portion 39a is folded while the flame-retardant fire-resistant sheet 29 is folded. The body 29 is dropped from the drop port 25 of the fire-resistant sheet container 17, and the lower end of the flame-retardant fire-resistant sheet container 29 hangs down below the fire-resistant sheet container 17.

Next, the hot-melt material 28c supporting the second fold 39b following the first fold 39a is blown off, and the second fold 39b is folded back while the flame-retardant refractory sheet 29 is folded. Is dropped from the falling port 25 of the fireproof sheet container 17,
The lower end of the flame-retardant fire-resistant sheet body 29 is
It hangs down further down the middle of 17.

In this manner, the third and subsequent folds 39
Each of the hot-melt materials 28d and 28n supporting the members c and 39n is blown in sequence, and the flame-retardant refractory sheet body 29
The lower end portion of the flame-retardant fire-resistant sheet body 29 hangs down stepwise below the fire-resistant sheet container 17 in a stepwise manner.

Therefore, at the initial stage of the fire, the flame-retardant fire-resistant sheet 29 functions as a smoke-proof screen, and at the same time, the lower end of the flame-retardant fire-resistant sheet 29 hanged in the middle of the shielded portion 2 and the shielded portion. A space between the floor and the floor 15 of the part 2 is secured as a passage for evacuation and rescue activities. Finally, the flooring body 33 at the lower end of the flame-retardant fire-resistant sheet body 29 is dropped on the floor surface 15 of the shielded part 2, and the fire-resistant fire-resistant sheet body 29 causes the shielded part 2 to fall. It is shielded and fully closed.

Next, a fourth embodiment shown in FIG.
A winding mechanism 41 having a rotatable winding drum 40 for rewinding the flame-retardant refractory sheet body 29 in the refractory sheet container 17 is provided inside the refractory sheet container 17, and the refractory sheet container 17 is sequentially cut off by fire heat. A plurality of hot-melt materials 28 having different fusing temperatures are provided, and each time the hot-melt materials 28 are sequentially blown, the winding mechanism 41 is operated to rotate the winding drum 40 sequentially in the rewinding direction, and Control means 42 is provided to stop the flame-retardant refractory sheet body 29 after rewinding it and dropping it from the drop port 25 for a predetermined length.

In this case, the lid 27 is attached to the refractory sheet accommodating body 17 with the lowest fusing temperature among the plurality of fusing materials 28 having different fusing temperatures, and the second lowest fusing temperature. A predetermined position above the landing body 33 with the hot-melt material 28b is attached and supported as a first mounting portion 43 on the periphery of the winding drum 40, and the hot-melt material having the third lowest fusing temperature.
At 28c, a predetermined upper position following the first mounting portion 43 is mounted as a second mounting portion 44 on the periphery of the winding drum 40, and is supported by a fourth hot melt material 28d having the lowest fusing temperature. A predetermined upper position following the second mounting portion 44 is mounted as a third mounting portion 45 to support the peripheral portion of the winding drum 40.

The other configuration is the same as that of each of the above-described embodiments, and therefore, the same components are denoted by the same reference numerals as those used in the above-described embodiments, and description thereof is omitted.

With this configuration, the fire-resistant sheet container 17 containing the flame-retardant fire-resistant sheet member 29 is provided on the ceiling 34 of the shielded portion 2. The fire prevention shutter device is arranged on the ceiling 34 by aligning the lid 27 that closes the drop opening 25 of the flame-retardant fire-resistant sheet 29 with the ceiling 34. In a non-fire situation, the shielded portion 2 is sufficiently used as a normal passage.

In the event of a fire, the plurality of hot melt materials 28 are sequentially blown by the fire heat in order from a lower fusing temperature to a higher fusing temperature. That is, a plurality of hot melt materials 28
Low melting temperature material 28a with lid 27 attached inside
First, the lid 27 opens a drop port 25 of the fire-resistant sheet container 17, and the lower end portion of the flame-retardant fire-resistant sheet body 29 falls from the drop port 25.

Next, a hot-melt material in which the first attachment portion 43 of the flame-retardant refractory sheet 29 is attached to the periphery of the winding drum 40
When 28b is blown, the control means 42 is operated, the winding mechanism 41 is operated by the control means 42, the winding drum 40 is rewound and rotated, and the winding drum 40 is rewound. When the flame-retardant fire-resistant sheet body 29 is further dropped from the drop port 25, and the lower end of the flame-retardant fire-resistant sheet body 29 hangs down below the fire-resistant sheet container 17, the winding drum is controlled by the control means 42.
The rewinding rotation of 40 is stopped.

Next, the second mounting portion 44 is connected to the winding drum 40
When the hot-melt material 28c attached to the periphery of
The control means 42 is operated again, the winding mechanism 41 is operated by the control means 42, and the winding drum 40 is further rewound and rotated, and the flame-retardant fire-resistant sheet rewound by the winding drum 40. When the body 29 is further dropped from the drop port 25 and the lower end of the flame-retardant fire-resistant sheet body 29 hangs down below the fire-resistant sheet container 17, the rewinding rotation of the winding drum 40 is performed by the control means 42. Stopped.

Next, the third mounting portion 45 is connected to the winding drum 40
When the hot-melt material 28d attached to the periphery of is melted,
The control means 42 is operated again, the winding mechanism 41 is operated by the control means 42, and the winding drum 40 is further rewound and rotated, and the flame-retardant fire-resistant sheet rewound by the winding drum 40. When the body 29 is further dropped from the drop port 25 and the landing body 33 at the lower end of the flame-retardant refractory sheet body 29 has landed on the floor surface 15 of the shielded part 2, it is wound by the control means 42. The rewinding rotation of the drum 40 is stopped.

Accordingly, in the initial stage of the fire, the flame-retardant fire-resistant sheet 29 functions as a smoke-proof screen, and at the same time, the lower end of the flame-retardant fire-resistant sheet 29 hanging in the middle of the shielded portion 2 and the shielded portion. A space between the floor and the floor 15 of the part 2 is secured as a passage for evacuation and rescue activities. Finally, the flooring body 33 at the lower end of the flame-retardant fire-resistant sheet body 29 is landed on the floor surface 15 of the shielded part 2, and the fire-resistant fire-resistant sheet body 29 secures the shielded part 2. Is shielded and fully closed.

[0085] Next, the fifth embodiment shown in FIGS. 9 and 1 0, the lower end of the flame retardant refractory sheet 29 to fall from the ceiling 34 on the floor surface 15 shields the the hidden part 2 Is raised to a predetermined position on the floor surface 15 and emergency exit opening means 47 for opening as an emergency exit 46 is provided in the fireproof sheet container 17 .

In this case, a winding mechanism 41 having a rotatable winding drum 40 for rewinding the flame-retardant refractory sheet body 29 in the refractory sheet container 17 is provided.
Is operated to rotate the winding drum 40 in the rewinding direction. When the landing body 33 at the lower end of the flame-retardant refractory sheet body 29 has landed on the floor surface 15 of the shielded portion 2, the winding mechanism is operated. A control means 42 for stopping the operation of 41 is provided, and a rotating portion 48 of the winding drum 40 is provided.
And the emergency exit opening means 47 is provided.

The control means 42 is opened when the operation of the winding mechanism 41 is stopped. The fire-retardant refractory sheet 29, which has shielded the shielded portion 2 by opening the control means 42, manually rotates the rotating portion 48 of the winding drum 40 by the emergency exit opening means 47. By rotating the winding drum 40, the flame-retardant refractory sheet body 29 can be wound up. The emergency exit opening means 47 comprises an endless rotating body 49 such as a flame-retardant endless chain, a flame-retardant endless belt, or a flame-retardant endless string suspended from a rotating portion 48 of the winding drum 40. .

The endless rotating body 49 is attached to the lid 27 which closes the drop opening 25 of the fire-resistant sheet container 17 in the same manner as the flame-retardant fire-resistant sheet 29 wound on the winding drum 40. Is always housed in the fireproof sheet housing 17.

The other components are the same as those of the above-described embodiments. Therefore, the same components are denoted by the same reference numerals as those used in the above-described embodiments, and description thereof is omitted.

With this configuration, the fire-resistant sheet container 17 containing the flame-retardant fire-resistant sheet member 29 and the endless rotating member 49 is provided on the ceiling 34 of the shielded portion 2. The disaster prevention shutter device is compactly housed in 34, the construction is easy and the fire prevention shutter device is installed neatly on the ceiling 34 by aligning the lid 27 that closes the falling port 25 of the flame retardant fireproof sheet body 29 with the ceiling 34 surface Can be In a non-fire situation, the shielded portion 2 is sufficiently used as a normal passage.

Then, in the event of a fire, the cover 27
When the hot-melt material 28 to which is attached is melted, the lid 27 is pivoted down about the hinge 26, and the drop 25 of the fireproof sheet container 17 is opened by the lid 27.

Next, the take-up mechanism 41 is operated by the control means 42, and the take-up drum 40 is rewound and rotated. The fire-resistant fire-resistant sheet 29 is sequentially rewound by the take-up drum 40. The flooring body 33 at the lower end of the flame-retardant refractory sheet body 29 is
At the time of landing on the floor surface 15 of the
Is stopped. Therefore, in the event of a fire, the flame-retardant refractory sheet 29 is quickly rewound and dropped, and the shielded portion 2 is shielded and completely closed by the flame-retardant refractory sheet 29.

When the lid 27 is rotated downward, the endless rotating body 49 on the lid 27 is dropped from the falling port 25.

When the endless rotating body 49 is rotated in a state where the shielded portion 2 is completely closed by the flame-retardant fire-resistant sheet 29, the winding mechanism 41 is rotated by the endless rotating body 49. Part 48
Is rotated, the winding drum 40 is rotated in the winding direction by the rotating portion 48, and the flame-retardant refractory sheet body 29 is wound on the winding drum 40. The landing body 33 at the lower end of the body 29 is lifted to a predetermined position on the floor surface 15, and the emergency exit is located below the lower end of the flame-resistant fire-resistant sheet body 29.
Opened easily and quickly as 46.

Therefore, in the event of a fire, a fire-retardant refractory sheet
Even if the shielded portion 2 is shielded and completely closed at 29, the endless rotating body 49 is rotated to operate the flame-retardant fire-resistant sheet 29.
The emergency exit 46 is easily pulled up to an arbitrary height position and opened as an emergency exit 46, from which emergency evacuation and rescue operations by a large number of people are easily performed.

Next, the sixth embodiment shown in FIG. 11 is different from the fifth embodiment shown in FIGS. 9 and 10 in that the emergency exit opening means 47 is suspended on the rotating portion 48 of the winding drum 40. An operating body 50 having both ends such as a flame-retardant chain, a flame-retardant belt, a flame-retardant rope, a flame-retardant string, or the like is used.

In this case, one end of the operating body 50 suspended on the rotating section 48 is attached to the landing body 33 at the lower end of the flame-retardant refractory sheet 29, and the other end is the operating section 51.

The other structure is the same as that of the fifth embodiment (FIGS. 9 and 10), and therefore, the same structure is denoted by the same reference numerals used in the fifth embodiment and the description is omitted. I do.

With this configuration, when the operation section 51 of the operation body 50 is gripped and the operation body 50 is pulled in a state where the shielded portion 2 is fully closed by the flame-retardant fire-resistant sheet 29, The operating body 50 is pulled through the rotating portion 48, and the landing body 33 at the lower end of the flame-retardant fire-resistant sheet body 29 is lifted to a predetermined position on the floor surface 15 at one end of the operating body 50. The lower portion of the lower end of the flame-retardant refractory sheet 29 is easily and quickly opened as an emergency exit 46.

Therefore, in the event of a fire, a fire-retardant refractory sheet
Even if the shielded portion 2 is shielded at 29 and fully closed,
By pulling the sheet, the flame retardant sheet 29
The emergency exit 46 is easily pulled up to an arbitrary height position and opened as an emergency exit 46, from which emergency evacuation and rescue operations by a large number of people are easily performed.

[0101]

According to the first aspect of the present invention , the hot- melt material is blown off by the heat of the fire, and the falling port is opened ,
The flame-retardant fire-resistant sheet can be automatically dropped from the drop opening, and the part to be shielded can be quickly closed with the flame-retardant fire-resistant sheet so as to be completely closed.

Also, a steel shutter and a fireproof sheet container
Confirm the shielded part with a flame-retardant fire-resistant sheet dropped from the inside.
It can be completely closed, preventing the spread of smoke and the spread of fire in the event of a fire.
it can. Also, when the shielded part is fully closed,
The floor of the floor, which will be the emergency exit, is covered with a fire-retardant fire-resistant sheet
Therefore, a predetermined position of the flame-retardant refractory sheet was pressed.
To raise the emergency exit on the floor of the shielded area.
Could be opened easily and evacuated easily from this emergency exit
Rescue operations.

Even in the event of a fire, even if the shielded portion is completely closed with the flame-retardant fire-resistant sheet and the shielded portion is shut off, the fire-retardant fire-resistant sheet is moved from the near side to the opposite side or from the opposite side to the front. It can be easily opened toward the side, so that evacuation and rescue operations can be easily performed even when the shielded portion is fully closed.

Further, when the flame-retardant fire-resistant sheet body, which fully closes the shielded part due to the flexibility of the flame-retardant fire-resistant sheet body, does not injure the fire-resistant fire-resistant sheet body without falling, Even if obstacles are scattered on the floor, the shielded portion can be completely closed without fail.

Therefore, in the event of a fire, the part to be shielded is quickly and completely closed with the flame-retardant refractory sheet by a simple structure in which the flame-retardant sheet is dropped by fusing the hot-melt material. Ru can provide disaster prevention shutter device that can reliably prevent the diffusion and spread of smoke in sex refractory sheet member.

[0106] According to the invention of claim 2, the effect of the invention according to claim 1, when fire is steel shutter over is stopped at a predetermined position on the floor surface of the shielding unit, heat by fire heat As the molten material is melted, the lid is opened to open the drop opening of the fire-resistant sheet container, and the fire-retardant fire-resistant sheet drops from the drop opening onto the floor of the shielded part, causing the fire-resistant sheet to fall. The part to be shielded can be completely closed by the fireproof sheet body.

At this time, even if obstacles are scattered on the floor surface of the shielded part where the flame-retardant fire-resistant sheet descends, the lower end of the flame-retardant fire-resistant sheet is shielded while covering the obstacle. Therefore, the shielded part can be completely closed with the flame-retardant fire-resistant sheet without being alienated by obstacles.

Further, since the refractory sheet housing is provided at the lower end of the steel shutter stopped at a predetermined position on the floor surface, the lower end of the steel shutter may be caught when the steel shutter descends. The fire-retardant fire-resistant sheet is used to shield the floor surface, which becomes an emergency exit during evacuation, etc., by pushing or lifting a predetermined position of the fire-retardant fire-resistant sheet. The upper part can be easily opened as an emergency exit, and evacuation and rescue operations can be easily performed from this emergency exit.

[0109] According to the invention of claim 3, when fire is more hot melt material by the fire heat is sequentially blown into the order of the fusing temperature at which sequentially increases from a low fusing temperature, i.e., a plurality of hot melt material The hot-melt material with a low fusing temperature holding the lid is blown first to open the drop opening of the fire-resistant sheet container, and then the hot-melt material supporting the first fold of the flame-retardant fire-resistant sheet body Is melted, the first part of the flame-retardant fire-resistant sheet body is dropped, and then the hot-melt material supporting the second fold of the flame-retardant fire-resistant sheet body is blown, and the flame-retardant fire-resistant sheet body is further cut. Then, each of the hot-melt materials supporting the third and subsequent folds of the flame-retardant refractory sheet is melted down sequentially, and the flame-retardant refractory sheet is further dropped.

Therefore, the flame-retardant fire-resistant sheet body is sequentially dropped from the drop opening of the fire-resistant sheet container, and the lower end portion of the flame-retardant fire-resistant sheet member is sequentially stepped below the fire-resistant sheet container. At the initial stage of the fire, the fire-retardant fire-resistant sheet body functions as a smoke-proof screen, and at the same time, the lower end of the fire-retardant fire-resistant sheet body hanging midway of the shielded part and the shielded part. The space between the floor and the floor can be secured as a passage for evacuation and rescue activities, and eventually the lower end of the flame-retardant fire-resistant sheet body falls onto the floor of the shielded part and the fire-resistant fire-resistant sheet body The part to be shielded can be completely closed.

[0111] According to the fourth aspect of the present invention, in a state where the object to be shielded portion fully closed during fire at flame retardant refractory sheet member, by operating the emergency exit opening means, the lower end of the flame retardant refractory sheet Part is lifted to a predetermined position on the floor, and the lower end of the flame-retardant sheet can be easily and quickly opened as an emergency exit, so that many people can evacuate and rescue many people. It can be done easily.

[Brief description of the drawings]

FIG. 1 is a sectional view of a disaster prevention shutter device according to a first embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a vertical sectional side view of the same.

FIG. 4 is a cross-sectional view of a disaster prevention shutter device according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing a state where the lid of the fireproof sheet container is opened.

FIG. 6 is a sectional view of a disaster prevention shutter device according to a third embodiment of the present invention.

FIG. 7 is an explanatory view showing a falling state of the flame-retardant fire-resistant sheet body.

FIG. 8 is a sectional view of a disaster prevention shutter device according to a fourth embodiment of the present invention.

FIG. 9 is a sectional view of a disaster prevention shutter device according to a fifth embodiment of the present invention.

FIG. 10 is an explanatory diagram showing a state in which the flame-retardant refractory sheet is pulled up.

FIG. 11 is a sectional view of a disaster prevention shutter device according to a sixth embodiment of the present invention.

[Explanation of symbols]

 2 Covered part 15 Floor 16 Steel shutter 17 Fireproof sheet container 25 Drop outlet 26 Hinge 27 Lid 28, 28a, 28b, 28c, 28d, 28n Hot-melt material 29 Flame retardant fire resistant sheet 30 Flame retardant fire resistant Seat 31 Stacking allowance 34 Ceiling 39, 39a, 39b, 39c, 39n Folding part 46 Emergency exit 47 Emergency exit opening means

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A62C 2/10 A62C 2/24 E06B 9/02

Claims (4)

(57) [Claims] A vertically movable steel chassis for opening and closing a shielded portion.
A fire-resistant sheet container attached to the lower end of the turret and having an opening on the lower surface, a lid provided on the fire-resistant sheet container for opening and closing the drop opening of the fire-resistant sheet container, and a container housed in the fire-resistant sheet container. flame retardant refractory sheet member for shielding the hidden part to fall from the drop opening upon opening of the chute on the floor of the shielding part is, during the non-fire the state of closing the front Symbol chute A hot-melt material that holds the lid and is melted by the heat of the fire in the event of a fire so that the drop opening can be opened. 2. The fireproof sheet container is provided with a shielded part in the event of a fire.
Under a steel shutter that is stopped in place on the floor
The disaster prevention shutter device according to claim 1, wherein the disaster prevention shutter device is provided at an end . 3. A fireproof sheet housing having an opening on the lower surface.
Body and the fireproof sheet provided in the fireproof sheet container
A lid for opening and closing a fall opening of the container, and the fireproof sheet storage
It is housed in the body and receives
Flame-retardant resistant to fall on the floor of the shield and shield the shield
With the fire sheet body and the above-mentioned fall port closed in the case of non-fire
In the event of a fire holding the lid, it is melted by this fire heat
A hot-melt material capable of opening the drop port, wherein the hot-melt material has a different fusing temperature at which fusing occurs due to fire heat.
Having a plurality of hot melt materials,
Holding the lid with a hot-melt material with a low fusing temperature inside,
Flame-resistant fireproof sheet folded inside the fireproof sheet container
Place the folds of the sheet body on this flame-retardant sheet
With other hot-melt materials whose fusing temperature gradually increases at the end fixing part
Disaster shutter device characterized by the support. 4. A falling port provided on a ceiling of the shielded portion and provided on a lower surface thereof.
And a fireproof sheet container with an opening
Lid that is provided in the fireproof sheet container and that opens and closes
Body, and the fall-out port housed in the fire-resistant sheet housing body.
At the time of opening, it falls onto the floor of the
Flame-retardant fire-resistant sheet that shields the shield, and front in case of non-fire
Hold the lid with the dropper closed, and
Heat that is blown by the heat of
A molten material, and falls into the fire-resistant sheet container on the floor to be shielded.
The lower end of the flame-retardant refractory sheet with the shielding portion shielded is placed on the floor surface.
Emergency that is pulled up to the upper position and opened as an emergency exit
Disaster shutter device characterized in that a mouth opening means.