JPH1189955A - Fire resistive sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire resistive sheet whose strength can be enhanced without deteriorating the fire protecting function and flexible function of a fire resistive film. SOLUTION: A fire resistive sheet 10 is formed by mounting flexible, metallic reinforcement 22 on one side of a fire resistive film 20. The reinforcement 22 is formed by weaving metallic thin wires into the shape of a mesh, which is sewn or bonded to the fire resistive film 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refractory sheet formed using a refractory film material.

[0002]

2. Description of the Related Art Fire prevention measures include fire prevention by managing fire to prevent a fire, fire extinguishing by extinguishing a fire by preventing its spread even in the event of a fire, and spreading fire to prevent the spread of a fire that occurred outside. Prevention. A fire barrier is a structure for achieving fire spread prevention in these fire prevention measures, but a simple and easy-to-store storable fire sheet may be used. This fire-resistant sheet is used in a multi-story building or the like, and is drawn out in the event of a fire to isolate the place where the fire occurs, thereby minimizing fire spread.

The above-mentioned fire-resistant sheet is used to prevent the spread of a fire, and is usually wound or folded in a bellows shape and stored above, and is pulled out when a fire occurs to shield the fire spread space. It has become. As the refractory sheet, for example, a refractory film material such as silica cloth is used.

[0004]

However, when the refractory sheet is formed of only the refractory film material of silica cloth described above, there is a problem in strength. For example, the refractory sheet is cut or broken when hit with a heavy or sharp object. There is fear. When the fire-resistant sheet is cut or torn in this way, there is a problem that air enters or smoke leaks from the damaged portion, thereby deteriorating the fire prevention function.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a fire-resistant sheet capable of improving the strength thereof without impairing the fire protection function and the flexibility function of the fire-resistant film material. .

[0006]

According to a first aspect of the present invention, there is provided a fire-resistant sheet comprising a non-flammable reinforcing material having flexibility on one or both sides of a fire-resistant film material. Install and configure.

Further, the fireproof sheet according to the second aspect of the present invention is constructed by sandwiching a nonflammable reinforcing material having flexibility between fireproof film materials.

Further, in the fire-resistant sheet according to a third aspect of the present invention, the reinforcing member is formed by arranging a large number of element wires oriented in a direction perpendicular to the winding or folding direction of the fire-resistant film material. Are desirably connected to each other with a nonflammable flexible connecting member to form an IDT.

The operation of the refractory sheet of the present invention will be described below with reference to the above construction. In claim 1, the non-combustible reinforcing material attached to one or both sides of the refractory film material covers the refractory film material. The strength can be increased, and the refractory film material can be prevented from being easily cut or broken. Further, since the reinforcing material is nonflammable, it has an original fire resistance function, and since the reinforcing material has flexibility, the fireproof sheet can be freely wound or folded.

In addition, since the non-combustible reinforcing material is interposed between the refractory film materials in claim 2, the appearance can be kept good by preventing the reinforcing material from appearing on the surface of the refractory sheet. Of course, the strength of the refractory film material can be increased by the reinforcing material, and the refractory film material can be freely wound or folded.

Further, in the third aspect, the reinforcing member is arranged in parallel with a plurality of wires oriented in a direction perpendicular to the winding or folding direction of the refractory film material. Since the connecting members having a flexible structure are connected to each other to form an interdigital shape, the strength of the refractory film material can be increased by a large number of wires, and, of course, the winding direction or the folding direction of the refractory film material can be increased. Since the rigidity of the above-mentioned reinforcing material is only the flexible connecting material for connecting the strands, the winding or folding of the refractory film material can be easily performed.

[0012]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2 show an embodiment of the fireproof sheet of the present invention. FIG. 1 is a perspective view of a main part showing a state in which a part of the fireproof sheet is stored. FIG. 2 is an enlarged sectional view of a portion A in FIG. is there.

That is, as shown in FIG. 1, the fireproof sheet 10 of the present embodiment is a storage unit 12 attached to a building (not shown).
The winding shaft 14 is wound around (winding direction X) and is stored. When a fire occurs, the winding shaft 14 is reversed and the fireproof sheet 10 is stored in the storage unit 12.
Is to be paid out. At this time, a weight 16 is attached to the lower end of the fire-resistant sheet 10, and the weight of the fire-resistant sheet 10 is reduced by a downward pulling force.
Are smoothly fed out of the storage unit 12.

Here, in the present embodiment, as shown in FIG. 2, the above-mentioned fire-resistant sheet 10 is provided on one side of a fire-resistant film material 20 with a flexible non-combustible fire-resistant material, for example, It is configured by attaching a metal reinforcing member 22. The reinforcing member 22 is formed by knitting a thin metal wire into a mesh shape, and this is attached to the refractory film material 20 by sewing or bonding. Alternatively, the refractory sheet 10
The reinforcing members 22 may be arranged independently of each other without being sewn or adhered to each other and connected only at the weight 16 portion. The one surface of the refractory film material 20 to which the reinforcing member 22 is attached may be either the front surface or the back surface of the refractory film material 20.

With the above construction, the refractory sheet 10 of the present embodiment is constructed by attaching a flexible metal reinforcing material 22 to one side of the refractory film material 20.
2, the strength can be increased by covering the refractory film material 20, and the refractory film material 20 can be prevented from being easily cut or torn. Therefore, the refractory sheet 1
Thus, the reliability of the fire prevention function can be greatly improved.

Further, since the reinforcing member 22 is made of metal, it does not burn out. In addition, since the reinforcing member 22 is formed by knitting a thin metal wire into a mesh shape and has sufficient flexibility, when the refractory sheet 10 is stored in the storage portion 12, it can be freely wound around the winding shaft 14. It can be carried out.

By the way, in the above-mentioned refractory sheet 10, the case where the reinforcing material 22 is attached to one side of the refractory film material 20 is disclosed, but as shown in FIG. The strength of the refractory sheet 10 can be further improved by providing the reinforcing members 22 on both sides in this manner.

FIG. 4 shows another embodiment, in which the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. That is, the figure is a cross-sectional view corresponding to FIG. 2, and the fire-resistant sheet 10 of this embodiment is provided with two fire-resistant film materials 20, and between these two fire-resistant film materials 20, 20.
A metal reinforcing member 22 formed in a mesh shape as in the above-described embodiment is sandwiched. Also in this case, the reinforcing members 22 are attached to the respective refractory film members 20 by sewing or bonding.

Therefore, in this embodiment, since the metal reinforcing material 22 is sandwiched between the two refractory film materials 20, 20, the reinforcing material 22 appears on the surface of the refractory sheet 10. The appearance can be kept good without any problem. Of course, in this embodiment as well, the strength of the fire-resistant film material 20 can be increased by the reinforcing material 22, and the fire-resistant sheet 10 can be freely wound because the reinforcing material 22 has flexibility. Further, three or more refractory film materials 20 may be provided, and the reinforcing material 22 may be sandwiched between each of them.

In each of the above-described embodiments, the case where a thin metal wire is knitted in a mesh shape as the metal reinforcing member 22 is disclosed. However, if the reinforcing member 22 has a structure made of metal and has flexibility. For example, a metal foil may be formed in a sheet shape, and further, as shown in FIG. 5, it may be formed as an interdigital reinforcing member 22a.

That is, the interdigital reinforcement member 22 shown in FIG.
a is a direction Y perpendicular to the winding direction X of the refractory film material 20.
Are arranged in parallel at a small interval, and the respective metal wires 30 are connected to each other by a nonflammable flexible connecting member 32.

Therefore, in the reinforcing member 22a formed in the interdigital structure, the refractory film material 20 can be protected by a large number of metal wires 30 to increase the strength thereof. The rigidity of the reinforcing member 22a in the winding direction X of the film material 20 depends only on the connecting member 32 connecting the metal wires 30. Therefore, when the refractory sheet 10 is made flexible in the winding direction X and stored, Winding can be easily performed.

Needless to say, even when the reinforcing member 22a is formed in an interdigital shape, the reinforcing member 22a is formed of the refractory film material 2.
0 may be attached to one side or both sides, or may be sandwiched between a plurality of refractory film materials 20. In any case, the refractory film material is secured while securing flexibility at the time of winding. The strength of the material 20 can be improved.

By the way, in each of the above embodiments, the case where the refractory sheet 10 is stored by being wound is disclosed.
The storage method is not limited to this, for example, a fireproof sheet is suspended on a rail (not shown) provided on the ceiling,
The present invention can also be applied to the case where the fireproof sheet is folded in a bellows shape in the horizontal direction and stored on the left and right sides.

[0025]

As described above, in the fireproof sheet according to the first aspect of the present invention, a nonflammable reinforcing material having flexibility is attached to one or both sides of the fireproof film material.
The reinforcing material can increase the strength of the refractory film material and prevent the refractory film material from being easily cut or broken. Further, since the reinforcing material is formed of a non-combustible material, and has flexibility and can be wound or folded freely with a fire-resistant film material, the fire-prevention function and the storage function of the original fire-resistant sheet can be achieved. Inhibition can be prevented.

In the fire-resistant sheet according to the second aspect of the present invention, a non-combustible reinforcing material is sandwiched between the refractory film materials. In addition to increasing the strength of the film material and allowing the refractory film material to be freely wound or folded, it is also necessary to keep the appearance good by preventing the reinforcing material from appearing on the surface of the refractory sheet. Can be.

Further, in the fire-resistant sheet according to claim 3 of the present invention, the reinforcing member is formed by arranging a plurality of element wires oriented in a direction perpendicular to the winding or folding direction of the fire-resistant film material. Since the individual wires are connected to each other with a nonflammable flexible connecting member to form an interdigital shape, the strength of the refractory film material can be increased by using a large number of wires. Since the winding direction or folding direction of the conductive film material is related only to the flexible connecting material for connecting the strands, an excellent effect that the winding or folding of the refractory sheet can be easily performed is achieved. .

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part in a state in which a part of a fireproof sheet according to an embodiment of the present invention is stored.

FIG. 2 is an enlarged sectional view of a portion A in FIG.

FIG. 3 is an enlarged sectional view of a main part showing another embodiment of the present invention.

FIG. 4 is an enlarged sectional view of a main part showing another embodiment of the present invention.

FIG. 5 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Fire-resistant sheet 20 Fire-resistant film material 22, 22a Reinforcement material 30 Metal wire 32 Connecting material

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI E06B 9/17 E06B 9/17 A (72) Inventor Masahiko Honma 4-640 Shimoseito, Kiyose-shi, Tokyo Inside Obayashi-gumi Technical Research Institute ( 72) Inventor Tadataka Higashi 2-12-12 Shiba Daimon, Minato-ku, Tokyo Unitika Glass Fiber Co., Ltd.

Claims (3)

[Claims] 1. A fire-resistant sheet wherein a non-combustible reinforcing material having flexibility is attached to one or both surfaces of a fire-resistant film material. 2. A fire-resistant sheet comprising a non-flammable reinforcing material having flexibility sandwiched between fire-resistant film materials. 3. The reinforcing member includes a plurality of wires arranged in parallel with a direction perpendicular to the winding or folding direction of the refractory film material, and each of the wires has nonflammable flexibility. The refractory sheet according to claim 1 or 2, wherein the refractory sheet is connected to each other by a connecting member to form an interdigital shape.