JPH09187525A - Movable fireproof/smokeproof section structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily partition a large space inside a building and to provide appropriate fireproof and smokeproof performance by the partition by forming one or more slits extended in a vertical direction at a part lower than the intermediate height part of a fire-resisting screen for partitioning the space inside the building and turning them to an escape path. SOLUTION: When a weight bar made of aluminum is horizontally fixed to the lower end of the fire-resisting screen 1 and the screen 1 is suspended downwards, appropriate tensile force acts on the screen 1 by the weight of the weight bar and a beautiful vertical surface is attained. A permanent magnet is attached to the weight bar and a belt-like metallic plate is attached to the surface of a floor 3 right below the screen 1. When the fire-resisting screen 1 is lowered to the very bottom, the permanent magnet of the weight bar at the lower end of the screen is attracted to the metallic plate on the floor 3. In the state, clearances between the upper end, lower end, left end and right end and the building are hardly exist, the screen 1 keeps a stable posture without easily trembling and the fireproof/smokeproof performance is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable fireproof / smokeproof compartment structure for preventing the spread of fire and the diffusion of smoke inside a building, and in particular, a structure using a fireproof screen made of glass fiber woven cloth or the like. Regarding

[0002]

2. Description of the Related Art In order to prevent the spread of fire and smoke in a building during a fire and to facilitate evacuation, a fireproof section and smokeproof section should be set appropriately according to a certain floor area or room usage. 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]

A fire-retardant shutter is often selected because it is desired to open a large opening of a building in normal times or when necessary. Create a large open space with the front and rear spaces set as a complete storage of the shutter, such as for use as a factory or office (of course, you need to be able to close the shutter), or for remodeling or rituals. This is to meet the demands of doing.

However, as described above, in order to install the fireproof shutter, a fireproof door must be installed nearby. Therefore, even if the fire shutter is rolled up and fully opened, the fire doors provided by the side cannot be removed.Therefore, the fire doors and the surrounding frame panels exist as obstacles that locally partition the interior space of the building, creating a large open space. There was a problem that I couldn't create a special space.

Further, the maximum width dimension of the fireproof shutter is about 10 meters, and in order to partition the wide space inside the building with the long shutter, a plurality of shutters are arranged in series. In that case, a rail post serving as a lifting guide for the slat is installed between adjacent shutters. Therefore, even if the fire shutter is rolled up and fully opened, some rail posts are present as obstacles in the central portion of the open space, and a complete continuous space cannot be created.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to easily partition a large space inside a building and to provide a considerable degree of fire / smoke-proof performance with the partition. There is an evacuation passage through which people can easily pass even when the partition is removed, and when the partition is removed, a movable fire / smoke-proof compartment structure that creates a completely continuous space with no obstacles is provided. To do.

[0008]

Means for Solving the Problems Movable fire protection of the present invention
The smoke-proof partition structure divides the space inside the building with a fireproof screen that extends from the ceiling to the floor, and forms one or more slits extending vertically from the middle height of the fireproof screen to the evacuation passage. It was done.

Further, according to the present invention, a wide space inside the building is partitioned by a wide fireproof screen extending from the ceiling to the floor, and the fireproof screen locally intersects the evacuation route inside the building. It is also possible to form a plurality of slits at appropriate intervals at appropriate intervals.

[0010]

FIG. 1 shows an example of an embodiment of the movable fire / smoke-proof compartment structure of the present invention. In this example, the central portion of a large indoor space having a frontage of 28 meters, a depth of 45 meters, and a ceiling height of 2.5 meters is partitioned by a fireproof screen 1 having a width of 28 meters. The fireproof screen 1 is made of a woven glass fiber fabric and is sufficiently flexible. As shown in FIG. 1, the upper end of the screen 1 is fixed to the ceiling 2, the lower end of the screen 1 is in contact with the floor 3, the left end of the screen 1 is in contact with the side surface of the pillar 4 near the window, and the right end of the screen 1 is in contact with the wall 5. ing.

A winding shaft of the fireproof screen 1 is horizontally mounted in a groove provided in the ceiling 2, and the winding shaft is driven by a motor, and the fireproof screen 1 is moved up and down by an electric winding operation. When the entire fireproof screen 1 is wound up, the entire wound screen is stored in the groove of the ceiling 2.
In this state, there are no obstacles or obstacles at the partition position, and the spaces before and after the partition position are completely continuous.

A weight bar made of aluminum is horizontally fixed to the lower end of the fireproof screen 1. When the screen 1 is hung downward, the weight of the weight bar exerts an appropriate tension on the screen 1 to provide a clean vertical position. To be a face. A permanent magnet is attached to the weight bar, and the screen 1
A strip-shaped metal plate is attached to the three floors directly below. When the fireproof screen 1 is lowered to the bottom, the permanent magnet of the weight bar at the lower end of the screen is attracted to the metal plate on the floor 3. Further, a guide groove is formed on the side surface of the pillar 4 along the left end of the refractory screen 1, and the guide 4 moves up and down with the left end of the screen set in the guide groove. Similarly, a guide groove is formed along the right end of the fireproof screen 1, and the right end is contained in the guide groove.

Therefore, when the fireproof screen 1 is lowered to the lowest position, there is almost no gap between the upper end / lower end / left end / right end of the fireproof screen 1 and the fireproof screen 1
Even if some wind pressure or pressure difference acts on the screen 1,
Does not move easily and maintains a stable posture. This provides a significantly higher level of fire protection and smoke protection.

In the example of FIG. 1, seven slits 6 extending in the vertical direction are formed at intervals of about 60 cm in the range of about 3 to 7 meters from the right end of the fireproof screen 1. Each slit 6 is 180 degrees from the bottom of the fire screen 1.
It is formed to a height of centimeters. Since the fireproof screen 1 is made of a supple cloth, the slit 6 can be easily spread by a person's hand, and a person can easily pass through the widened gap. That is, in the state in which the fireproof screen 1 is partitioned, the portion where the seven slits 6 are formed serves as an evacuation passage corresponding to the fire door. The position of this evacuation passage is set at an appropriate position according to the setting state of the evacuation route of the entire building and the usage situation in the room. That is, the slit 6 is formed at the portion where the refuge route planned in advance and the fireproof screen 1 intersect.

The slit 6 is formed only up to a height of 180 cm from the bottom, and the slit 6 does not reach the range of 70 cm from the ceiling 2. Therefore, even if there is the slit 6 as the evacuation passage, the smokeproof performance by the fireproof screen 1 is maintained at a sufficiently high level (higher smokeproof performance than the ordinary smokeproof hanging wall can be obtained).

The weight bar at the lower end of the screen 1 may be cut and separated at the position where the slit 6 is formed. That way, there will be no obstacles to the evacuees' feet,
It is easier to pass. In that case, if the end surfaces of the cut and separated weight bars are attracted to each other by a permanent magnet, it is possible to minimize the deterioration of the smoke proof performance due to the slits 6.

[0017]

According to the present invention, a large space inside a building can be easily partitioned, and the partition can provide a considerable degree of fire / smoke-proof performance, and a person can easily partition the space. There is an evacuation passage through which you can pass, and with the partition removed, you can create a completely continuous space with no obstacles.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an example of an embodiment of the present invention.

[Explanation of symbols]

 1 Fireproof screen 2 Ceiling 3 Floor 4 Pillar 5 Wall 6 Slit

Claims (2)

[Claims] 1. An evacuation passage is formed by partitioning a space inside a building with a fireproof screen extending from the ceiling to the floor, and forming one or more slits extending vertically from an intermediate height portion of the fireproof screen to a lower portion. Movable fire / smoke-proof compartment structure characterized by 2. A wide specific space inside the building is partitioned by a wide fireproof screen extending from the ceiling to the floor, and a local specific portion of the fireproof screen intersecting the evacuation route inside the building. A movable fire / smoke-proof compartment structure characterized in that a plurality of slits are formed at appropriate intervals.