JPH0747144A - Spread of fire prevention structure - Google Patents

Abstract

PURPOSE:To prevent the spread of fire by mounting a non-combustible fireproofing sealant which foams below the temperature of ignition of wood or paper to seal a gap between an opening/closing part and a mounting frame on either one of opposed surfaces of the opening/closing part and the mounting frame when a fire occurs. CONSTITUTION:A door 1 is mounted on a rail 3 fastened on an end face of one wall 3 free to open or close with a hinge 4. Another rail 6 is mounted on the end face of the other wall 5. Fire proofing agents 7-10 which foams below the temperature of ignition of wood or paper are buried into vertical grooves on the opposed surfaces between the door 1 and the rails 3 and 6. Some fire proofing sealants commercially available foam below 150 deg.C to expand to a volume larger than five times. When the fire proofing agents 7-10 are also applied not only vertically but also on a vertical frame, a complete shielding of the spread of fire is accomplished. The fire proofing sealant is desired to be covered to prevent degrading as it is easy to degrade with less durability in general.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing the spread of fire in opening / closing parts such as doors and windows of buildings.

[0002]

2. Description of the Related Art Conventionally, there exist doors, windows, etc. and frames or frames themselves made of non-combustible and refractory materials.

[0003]

However, the fire passes through the gap between the opening and closing parts such as doors and windows and the surrounding frames and frames, enters the other room, and spreads the fire. Even if the frame or the frame surrounding the part or the frame is made of noncombustible refractory material, the spread of fire cannot be prevented.

[0004]

The present invention is a door and a frame,
Alternatively, a gap existing between the window and the opening / closing part such as a frame and its mounting frame is sealed when a fire occurs. Therefore, the present invention is provided with a non-flammable fireproof sealant that foams at the ignition temperature of the opening / closing part or the mounting frame on one of the surfaces facing the periphery of the opening / closing part and the mounting frame. It is designed to be installed or buried.

[0005]

Embodiments will be described with reference to the embodiments and sectional views shown in the drawings.

A door 1 is attached to a frame 3 fixed to an end surface of one wall 2 by a hinge 4 so as to be openable and closable. A frame 6 is also attached to the end surface of the other wall 5. Door 1
Fireproof sealant 7 which foams at the ignition temperature of wood or paper, which is about 350 ° C in the former case and about 260 ° C or less in the latter case, on the surfaces facing each other and the frames 3 and 6, respectively. 10 are buried in the vertical groove. As this fireproof sealant, Intumex (registered trademark) manufactured by Chemipotulinz, Austria can be considered. This product foams at 150 ° C. or lower, expands to a volume five times or more as shown in FIG. 2, and seals the gaps 11 and 12 between the door and the frame. The fireproof sealants 7 to 10 are not limited to the vertical direction,
If you also go to the upper and lower frames, it will be possible to prevent the spread of fire completely.
Since the fireproof sealant generally has poor durability and is easily deteriorated, it is preferable to cover the surface of the fireproof sealant with a clear seal or the like to prevent deterioration.

[0007]

According to the present invention, since it is possible to avoid the invasion of fire from a gap of a door or the like, there has conventionally been spread of fire around the door in the door, and the invasion of the fire has occurred. There is no fear. Moreover, in the present invention, since it is sufficient to dispose the fireproof sealant on the surface of the door or the frame or to form the groove, the manufacturing can be easily performed.

[Brief description of drawings]

FIG. 1 Sectional view

FIG. 2 is a cross-sectional view showing foaming of a fireproof sealant.

[Explanation of symbols]

 1 Door 2, 5 Wall 3, 6 Frame 7-10 Fireproof sealant

Claims (2)

[Claims] 1. A non-combustible fireproof sealant, which foams at a temperature below the ignition temperature of wood or paper and seals the gap between the opening / closing part and the mounting frame, is provided on one of the facing surfaces of the opening / closing part and the mounting frame. Fire spread prevention structure. 2. The fire spread prevention structure according to claim 1, wherein the fireproof sealant is covered with a deterioration preventing agent.