JP3622507B2 - Fire-resistant shutter with fire-proof cloth evacuation door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a fire shutter for partitioning an internal space of a building to create a fire protection section, and more particularly, to a fire shutter with a fire-resistant cloth evacuation door in which a fire-proof cloth evacuation door for evacuation is provided on a fire-proof shutter made of steel plate. .
[0002]
[Prior art]
For buildings such as buildings, fire prevention facilities such as fire barriers and fire shutters are provided to prevent the spread of fire and fires in the event of a fire, and fire doors and evacuation passages are provided to enable quick evacuation. Have deployed.
[0003]
In the building, as shown in FIG. 4, fire prevention shutters 1 made of steel plates are systematically arranged, and a predetermined fire prevention section is created by drawing out when a fire occurs. And about the fire prevention division which corresponds to an evacuation passage, the side 2 is provided with the stand 2, and the fireproof door 3 is separately provided to secure an evacuation exit.
[0004]
Recently, as a new fire protection equipment that replaces such fire barriers and fire shutters, an equipment using a flexible fire screen that is incombustible or rich in fire resistance has been proposed. This is a screen-type fireproof bulkhead that is drawn out from the ceiling. Usually, the flexible fireproof screen is wound around the ceiling and stored, and the internal space of the building is partitioned by drawing it out in the event of a fire. It is like that. Further, a flexible door is provided as a part of the fireproof screen as an evacuation port, and a device equipped with such an evacuation door is called a walk-through fireproof screen device.
[0005]
For example, as shown in FIG. 5, the fireproof screen 4 has a slit 5 formed upward from the lower edge, and a triangular curtain door 7 that can be bent along an oblique side 6 extending obliquely downward from the upper end of the slit 5. Is provided. A rod-like weight 8 is attached to the lower end edge of the fireproof screen 4, and an independent weight 9 is attached to the lower end edge portion of the curtain door 7, and the fireproof screen 4 and the curtain door 7 are suspended by these weights 8, 9. I try to get nervous. The weight 9 of the curtain door 7 is connected to the weight 8 by the hinge 10 at the end of the oblique side 6 so that the curtain door 7 can be bent along the oblique side 6 and pushes the surface of the curtain door 7 during evacuation. Can be bent from the oblique side 6 to the back side, and a large gap is formed in the slit 5 so that the fireproof screen 4 can be passed through the gap.
[0006]
[Problems to be solved by the invention]
However, there are the following problems in the equipment for creating such a conventional fire prevention section.
[0007]
Since the fireproof door 3 is provided with a stand 2, it always occupies the space in the building as well as in an emergency such as a fire, and it is only an obstructive obstacle in normal times to narrow the use space .
[0008]
In that respect, in the walk-through type fireproof screen device, since the entire fireproof screen 4 including the curtain door 7 serving as an evacuation door is housed on the ceiling side, it does not become an obstructive obstacle in normal times. However, in this case, both the fireproof screen 4 and the curtain door 7 for the walk-through are not rigid, and the overlapping portion cannot be brought into close contact, so that when the pressure difference occurs between the front and rear of the fireproof screen 4, the curtain door It is thought that 7 is swollen and inferior in airtightness.
[0009]
Therefore, the present invention has been made in view of such a conventional problem, and by attaching the evacuation door to the fire shutter, it does not occupy the use space in the building in a normal time, while on the other hand in the event of a fire, etc. An object of the present invention is to provide a fireproof shutter with a fireproof cloth evacuation door, which can smoothly open and close the door of the evacuation exit which has appeared together with the fireproof shutter forming the partition wall of the fireproof section in an emergency.
[0010]
[Means for Solving the Problems]
In order to achieve such an object, a fireproof shutter with a fireproof cloth evacuation door according to claim 1 of the present invention is a fireproof shutter made of steel plate which is housed on the ceiling side and is drawn out to partition the internal space of a building. Forming an opening in the fire shutter, providing an evacuation door made of a fire-resistant cloth material in the opening , and opening and closing the door at the open / close side edge of the door. And a sealing means made of a magnetic member for sealing the portion so as to be in close contact with the fireproof shutter .
According to a second aspect of the present invention, in the first aspect of the invention, the magnetic member is composed of a large number of magnet pieces.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the magnetic member has a strip shape and is flexible.
[0011]
With the above configuration, the fireproof shutter with a fireproof cloth evacuation door according to the first aspect of the present invention has the fireproof shutter housed on the ceiling side in normal times, and when the fire breaks out, the fireproof shutter housed is extended to partition the interior space of the building. To block out flames and smoke. On the other hand, by opening the door for evacuation, the fire shutter can be passed through the opening.
[0012]
Although this evacuation door is made of a fire-resistant cloth material and is flexible, a sealing means for sealing the door opening / closing side edge to a fire-proof shutter is provided, so the evacuation door is closed. In this case, the sealing means can bring the evacuation door into close contact with the fire shutter, and the fire shutter is made of steel plate and is rigid. It is never done.
[0013]
Further, since the door for evacuation is made of a fire-resistant cloth material, it is also translucent and can easily identify the evacuation route.
[0014]
In addition, since the fire shutter is provided with a door for evacuation, the door for evacuation is also taken up together with the fire shutter and stored on the ceiling side at normal times, and therefore does not occupy the use space in the building. .
[0015]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a fireproof shutter with a fireproof cloth escape door according to the present invention will be described with reference to the accompanying drawings. 1 to 3 show an embodiment of the present invention, FIG. 1 is a front view of a fireproof shutter with a fireproof cloth evacuation door, FIG. 2 is an enlarged front view of the evacuation door portion, and FIG. 3 is an application example thereof. It is a top view of the escalator part shown.
[0016]
The fireproof shutter 11 with a fireproof cloth evacuation door includes a fireproof shutter 12 made of a steel plate, and the fireproof shutter 12 is wound and stored on a winding shaft provided on the ceiling side. The fire-proof shutter 12 is formed of a metal strip that is formed by joining a large number of strip pieces 13 with a strip piece 13 obtained by processing a steel plate material into a strip shape with a predetermined width as one unit. It is nonflammable and fireproof, and is drawn out from the take-up shaft when in use, partitioning the interior space of the building to form a partition wall that blocks fire and smoke.
[0017]
An escape port 14 is formed at an appropriate position in the fire shutter 12, and the fire shutter 12 can pass through the fire shutter 12 in a state where the interior space of the building is partitioned by the fire shutter 12.
[0018]
The evacuation port 14 is formed by cutting the fire shutter 12 into a substantially rectangular shape, and the evacuation port 14 is provided with an evacuation door 15 made of fireproof cloth.
[0019]
The escape door 15 is formed of a non-combustible or fire-resistant cloth material such as a glass fiber woven cloth or silica cloth, and has a function of blocking flame or smoke. A bar-like weight 16 is horizontally attached to the lower end of the escape door 15. The evacuation door 15 has one side edge and an upper edge that are connected to the fire shutter 12 in close contact with the fire exit 14 of the fire shutter 12, and the end of the weight 16 is connected by a hinge 17. It is attached to the fire shutter 12 and can be opened and closed freely.
[0020]
The opening / closing edge of the evacuation door 15 is overlapped with the opposite edge of the fire shutter 12 serving as the evacuation port 14 from the front side in FIGS. 1 and 2, and the evacuation door 15 is opened to the front side in the drawing. It is supposed to be. A belt-like and flexible magnetic member 18 is attached to the opening / closing edge of the escape door 15. The magnetic member 18 is in close contact with the fire shutter 12 when the escape door 15 is closed, and serves as a sealing means for sealing the open / close side edge of the fire shutter 12 so as to be openable and closable. The flexibility of the magnetic member 18 is set to such a degree that the bending of the escape door 15 wound together with the fire shutter 12 is not hindered.
[0021]
Further, a linkage metal 19 may be attached to the end of the weight 16 on the opening / closing side. When the evacuation door 15 is closed, the linking metal 19 is connected to a receiving metal 20 provided at an opposing portion on the fire shutter 12 side. The linkage metal 19 and the receiving metal 20 can be easily connected by simply pulling the open / close side of the escape door 15 forward. In this embodiment, the evacuation door 15 is opened and closed as shown in FIG. 2. However, the setting is reversed, that is, the opening / closing side edge of the evacuation door 15 overlaps the edge of the fire shutter 12. You may comprise so that alignment may be reversed and the evacuation door 15 may be pushed open.
[0022]
As the magnetic member 18, a large number of magnet pieces may be attached to the edge of the escape door 15 on the opening / closing side in a band shape. In this case, it is preferable that the attachment pitch of the magnet piece to the edge is the same as the width of the strip 13 that bends according to the winding of the fire shutter 12.
[0023]
With the above-described configuration, the fireproof shutter 11 with a fireproof cloth evacuation door according to the present embodiment is normally wound around the winding shaft provided with the fireproof shutter 12 on the ceiling side, and stored in the event of a fire. The fire and smoke are cut off by separating the interior space of the building.
[0024]
When evacuating, the evacuation door 15 provided on the fire shutter 12 can be pulled forward, and the fire shutter 12 can be passed through the evacuation port 14. That is, by pulling the right edge of the evacuation door 15 forward in FIG. 1, the evacuation door 15 can be opened by the hinge 17 as shown in FIG. At this time, the evacuation door 15 is made of a fire-resistant cloth material and is flexible so that the cloth material itself does not have a so-called waist, but one side edge and an upper edge are on the fire shutter 12 side. Since the weight 16 and the magnetic member 18 having rigidity are attached to the lower end portion and the opening / closing side edge portion, the rigidity of the escape door 15 can be increased by the weight 16 and the magnetic member 18, thereby evacuating. Opening and closing can be performed smoothly by applying a force to open the door 15 to the entire door.
[0025]
Furthermore, since the belt-like flexible magnetic member 18 is attached to the opening / closing side edge of the evacuation door 15, when the refractory cloth evacuation door 15 is closed, the magnetic member 18 causes the fire shutter 12 side to close. Since the fire shutter 12 is made of steel plate and is rigid, the evacuation door 15 can be closely attached to the door, so that it is not blown by a pressure difference like the curtain door of the conventional walk-through type fireproof screen device, and is kept airtight. Can do.
[0026]
And since the fire door 12 made of fireproof cloth is attached to the fire exit 14 formed by cutting the fire shutter 12 into a substantially rectangular shape, the fire door 15 is wound together with the fire shutter 12 at the ceiling side in normal times. Therefore, it does not occupy the use space in the building, and the degree of freedom in building design increases, which is preferable.
[0027]
Further, since the evacuation door 15 is formed of a fire-resistant cloth material, only this portion of the fire shutter 12 is translucent, and the evacuation route can be easily identified.
[0028]
On the other hand, the fire shutter 11 with a fireproof cloth evacuation door according to the present invention can be applied to a fire shutter already installed. For example, in a building such as a department store, it can be applied to a fire prevention section of a part where an escalator is installed. That is, as shown in FIG. 3, the escalator installation part is provided with the fire door 3 and the fire shutter 1 so as to surround the two escalators 21 and 22 that are up and down. Since the stand 2 obstructs the passage, the escalators 21 and 22 are often arranged laterally avoiding the front in the transport direction. Therefore, the fire shutter 1 positioned in front of the escalators 21 and 22 in the transport direction is changed to the fire shutter 11 with fire escape cloth evacuation door according to the present invention. At this time, the fire escape cloth evacuation door 15 faces the up escalator 21. Let Alternatively, the escape door 15 may face the descending escalator 22. As a result, the evacuation port 14 is also formed in front of the up escalator 21, so that the evacuee who is moving in a hurry can check the evacuation door 15 naturally without looking away, and the evacuation port 14 can be easily found. So safety can be increased. The fire shutter 11 with a fireproof cloth escape door of the present invention may be configured by modifying the fire shutter 1 positioned in front of the escalators 21 and 22 in the transport direction. This remodeling process is completed by cutting off the lower end portion of the existing fire-proof shutter 1 into a substantially rectangular shape to form an evacuation port 14 and attaching an evacuation door 15 made of fireproof cloth to the evacuation port 14 for easy processing. Since the existing fire shutter 1 can be reused, the cost can be reduced, which is preferable.
[0029]
【The invention's effect】
As described above, the fireproof shutter with a fireproof cloth evacuation door of the present invention has the following excellent effects.
[0030]
In the fire shutter with fire escape cloth made of fire resistant cloth according to claim 1, since the fire shutter is provided with an escape door made of fire resistant cloth material, the escape door is housed on the ceiling side together with the fire shutter in normal times. Therefore, it does not occupy the use space in the building, which is preferable because the degree of freedom in building design is increased.
[0031]
Although this evacuation door is made of a fire-resistant cloth material and is flexible, it has sealing means for sealing the door opening / closing side edge to the fire shutter so that it can be opened and closed. When the door is closed, the evacuation door can be brought into close contact with the fire shutter by the sealing means made of the magnetic member, and since the fire shutter is made of steel plate and has rigidity, the curtain of the conventional walk-through type fireproof screen device It can be kept airtight without being lifted by the pressure difference like the door.
[0032]
Further, since the door for evacuation is made of a fire-resistant cloth material, it is also translucent and can easily identify the evacuation route.
[Brief description of the drawings]
FIG. 1 is a front view of a fireproof shutter with a fireproof cloth evacuation door showing an embodiment of the present invention.
2 is an enlarged front view of the evacuation door portion of FIG. 1. FIG.
FIG. 3 is a plan view of an escalator portion showing one application example of a fireproof shutter with a fireproof cloth escape door according to the present invention.
FIG. 4 is a front view of a conventional fire shutter.
FIG. 5 is a front view of a conventional walk-through fireproof screen device.
[Explanation of symbols]
12 Fire shutter 15 Escape door 18 Magnetic member

Claims (3)

A fire-resistant shutter made of steel plate that is housed on the ceiling side and is drawn out to partition the interior space of a building, and is formed with an opening in the fire-proof shutter, and the opening is made of a fire-resistant cloth material Sealing means comprising a magnetic member provided with a door for evacuation and sealing the edge of the door on the opening and closing side edge of the door so that the edge closes to the fire shutter when the door is closed. A fire shutter with a fireproof cloth evacuation door. The fireproof shutter with a fireproof cloth escape door according to claim 1, wherein the magnetic member is composed of a large number of magnet pieces. The fireproof shutter with a fireproof cloth evacuation door according to any one of claims 1 and 2, wherein the magnetic member has a strip shape and is flexible.

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