JP3097543B2 - Fireproof and smokeproof compartment structure that allows easy passage of people - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire prevention / smoke prevention compartment structure for preventing the spread of a fire in a building and the spread of smoke, and particularly to a fireproof screen made of a woven fabric of glass fiber or the like. Fire protection that can pass through
The present invention relates to a smoke-proof compartment structure.

[0002]

2. Description of the Related Art In order to prevent the spread of fire and smoke in a building in the event of a fire and to facilitate evacuation, fire and smoke compartments must be appropriately set according to a certain floor area or use of a room. Evacuation routes must be set.
From this viewpoint, equipment such as a fire barrier, a smoke hanging wall, a fire shutter, and a fire door are systematically arranged.

[0003] As is well known, a fireproof shutter is a steel shutter having fireproof performance, and is usually of an electric winding type having a structure in which a large number of slats are connected, and is wound in an upper part and stored. It operates between a state in which it is pulled down and the opening in the building is blocked. Due to the structure of the fireproof shutter, the shutter itself cannot be incorporated with a fireproof door serving as an evacuation passage, so that when the shutter is lowered and the opening is closed, no person can pass completely. Therefore, in order to secure an evacuation passage, it is necessary to install a fire door in the immediate vicinity of the fire shutter. The fire door automatically closes in the event of a fire and can be pushed open in the evacuation direction at any time.

[0004]

[0005] The performance of fire prevention and smoke prevention can be improved by providing many partitions for fire prevention and smoke prevention at important places. However, it is impossible to install many partitions ignoring the original functionality and ease of use of the building, and to ensure the consistency with the wall design, storage space for everyday use, and ease of evacuation in an emergency. It is necessary to think from various aspects, such as the implementation cost, etc., which is troublesome for designers.

SUMMARY OF THE INVENTION An object of the present invention can be easily and inexpensively implemented by using a heat-resistant, soft cloth screen, requires a small installation space, and effectively shields an opening in a building to be considerably high. An object of the present invention is to provide a fire / smoke-proof compartment structure that exhibits fire- and smoke-proof performance, and that allows a person to easily pass through a screen surface in a partitioned state and is easily evacuated in an emergency.

[0006]

The fire / smoke prevention compartment structure of the present invention basically has the following requirements. A screen that hangs from the ceiling or under the beam to the floor and that reaches both sides of the building to the walls and columns will be installed to cover the opening inside the building. Two or more fabrics having heat resistance and flexibility are overlaid on all or part of the screen. A plurality of slits extending in the vertical direction are formed at appropriate intervals in each of the two fabrics. At least in the portion where the slit is formed, the two fabrics are separated from each other. The two doughs are overlapped by appropriately shifting the slit positions of the two doughs so that the slit positions of the dough and the other dough do not overlap.

In this structure, according to the invention of claim 2,
A structure in which the screen is wound up and stored by a winding device provided on a ceiling portion or a state where the screen is lowered and partitioned is selectable. According to the third aspect of the present invention, a weight bar with a permanent magnet is horizontally fixed to the lower end of the screen, and a metal member that attracts the permanent magnet of the weight bar is attached to the floor at the lower position of the screen. . Further, in the invention according to claim 4, a guide groove extending in the vertical direction is formed in a wall or a pillar portion of a building that abuts on both side ends of the screen in a lowered state, and both side ends of the screen are accommodated in the guide groove. I do.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a fire / smoke-proof compartment structure according to the present invention is shown in FIGS. First, as shown in FIG. 1, a screen 10 is installed hanging down from a ceiling or a beam to a floor and both ends reaching a wall or a pillar so as to shield an opening inside the building. Screen 10
Is made by laminating two cloths 11 and 12 having heat resistance and flexibility, such as silica cloth and glass fiber woven cloth. A plurality of slits 11a and 12a extending in the vertical direction are formed on the two cloths 11 and 12 at appropriate intervals. In this embodiment, the slit 11a
The interval of (12a) is 30 cm. In the portion where the slits 11a and 12a are formed, the two fabrics 11 and 12 are separated from each other (not sewn to integrate the two fabrics). Also, as shown in FIGS. 2 and 3, the slit 1
The two cloths 11 and 12 are overlapped by appropriately shifting the slit positions of both cloths 1a so that the position of the slit 12a of the other cloth 12 does not overlap. In this embodiment, the slits 12a are shifted such that the slits 12a are located exactly in the middle of the slits 11a, and the slits 11a and 12a on the front and back sides have a distance of 15 cm. The width of the slit can be increased to some extent if the interval between the dough 11 and the dough 12 is within the range of mutual contact, and the interval between the dough 11 and the dough 12 can be increased to some extent if the slit has no width.

As shown in FIG. 1, the screen 10 is wound up and stored by a wind-up device 13 provided on the ceiling portion, and the screen 10 is lowered and partitioned off. As shown in FIG. 3, a weight bar 15 with a permanent magnet 15a is fixed horizontally to the lower end of the screen 10, and the permanent magnet 15a of the weight bar 15 is A metal plate 16 to be attracted is attached. As shown in FIG. 2, guide grooves 14 are formed in a wall or a pillar portion of a building that abut against both side ends of the screen 10 in a lowered state, and guide grooves 14 extending in the vertical direction are formed in the guide grooves 14. Is configured to be accommodated.

In normal times, the screen 10 can be wound up by the winding device 13 so that the screen 10 can be completely housed in the ceiling recess where the winding device 13 is installed. The take-up device 13 operates by electric descent or gravity descent, and lowers the screen 10 to the floor in an emergency.
When the screen 10 is hung downward, an appropriate tension is applied to the screen 10 by the weight of the weight bar 15 to form a clean vertical surface. When the screen 10 is lowered to the floor, the permanent magnets 15a of the weight bars 15 are
Adsorb to 6. Alternatively, when the vehicle stops very close without landing on the floor, it is attracted by magnetic force and stabilized. Also, the left and right side end portions of the lowered screen 10 are housed in the guide grooves 14 of the building.

Therefore, when the refractory screen 1 is lowered to the lowest position, the screen 1 does not easily move and maintains a stable posture even if a certain amount of wind pressure or pressure difference acts on the screen 1. Also, if a person swings back and forth when passing by, it stops immediately. In particular, screen 1
Since the slits 11a and 12a of the two cloths 11 and 12 constituting the front and back sides of the cloth 0 are shifted from each other, even if a small amount of smoke leaks from the slit of one of the cloths, The slit of the fabric is out of position,
The smoke passing through the screen 10 is very small. This provides a significantly higher level of fire protection and smoke protection.

Even if the building opening is shielded by the screen 10 as described above, a person can easily pass through the slits 11a and 12a. In other words, when the person on the side of the cloth 11 of the screen 10 puts his hand into the slit 11a, his hand hits the cloth 12 on the back side. Jump out to the opposite side of the screen 10. If the whole body is put on the screen 10 so as to be guided by the hand, it is possible to easily escape to the opposite side of the screen 10.

[0013]

The fire and smoke prevention compartment structure of the present invention can be easily and inexpensively implemented by using a flexible cloth fire-resistant screen, the installation space is small, and the opening inside the building is effectively formed. The screen can be screened to provide considerably high fire and smoke prevention performance, and can be easily evacuated in an emergency because people can easily pass through the screen surface in a partitioned state.

[Brief description of the drawings]

FIG. 1 is a schematic view of a fire and smoke prevention compartment structure according to an embodiment of the present invention.

FIG. 2 is an explanatory cross-sectional view of the embodiment.

FIG. 3 is a configuration diagram of a lower end portion of the screen in the embodiment.

[Explanation of symbols]

 Reference Signs List 10 Screen 11 Fabric 11a Slit 12 Fabric 12a Slit 13 Winding device 14 Guide groove 15 Weight bar 15a Permanent magnet 16 Metal plate

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-51-93596 (JP, A) JP-A-54-50197 (JP, A) JP-A-50-144292 (JP, A) 83599 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A62C 2/10 E06B 7/32

Claims (4)

(57) [Claims] 1. A fire / smoke-proof compartment structure through which a person can easily pass, having the following requirements: A screen that hangs from the ceiling or under the beam to the floor and that reaches both sides of the building to the walls and columns will be installed to cover the opening inside the building. Two or more fabrics having heat resistance and flexibility are overlaid on all or part of the screen. A plurality of slits extending in the vertical direction are formed at appropriate intervals in each of the two fabrics. At least in the portion where the slit is formed, the two fabrics are separated from each other. The two doughs are overlapped by appropriately shifting the slit positions of the two doughs so that the slit positions of the dough and the other dough do not overlap. 2. The fire protection system according to claim 1, wherein the screen is wound up and retracted by a winding device provided on a ceiling portion, or a screen is lowered and partitioned to allow a person to easily pass through. Smoke-proof compartment structure. 3. The screen according to claim 1, wherein a weight bar with a permanent magnet is fixed horizontally to a lower end of the screen, and the floor at the screen lowering position attracts the permanent magnet of the weight bar. A fireproof / smokeproof compartment structure that allows people to easily pass by attaching metal members. 4. The guide groove according to claim 1, wherein a vertically extending guide groove is formed in a wall or a pillar portion of the building abutting on both side ends of the screen in a lowered state. A fireproof / smokeproof compartment structure for accommodating both sides of the screen, so that a person can easily pass through the screen.