JP2003336331A - Fire-resisting packing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a fire-resisting packing capable of being simply manufactured in large quantities. <P>SOLUTION: In the fire-resisting packing used for a metal part 4 adhering to the circumference of a conduit 3, capable of being closed and having a plurality of openings 7 includes the metal part 4 locating a huge gap filling fire preventive lump 2 on the inside thereof and at least one individual L-shaped wall piton 5 for mounting it on a wall 6 and capable of fixing the wall piton 5 to the outside of the metal part, fixed means 8 passing through in the direction of a radius and terminated at the radial outside of the conduit 3 are introduced into the openings 7, and the fixed means 8 can be fixed in the openings 7 and/or the fire preventive lump 2 in self-controlling. Favorably, the metal part 4 is constituted of a metal plate opening the openings 7, at least some of the fixed means 8 on the circumference have a diameter U larger than the original inside diameter I by a zone Z capable of being widened, and their projected ends are formed in the shape of a splinter. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof packing that can be attached to a wall.

[0002]

2. Description of the Related Art Such a fire-proof packing is a fire-blocking body having an extremely large gap in the event of a fire and is airtight so that a flame does not pass through an annular space formed between a wall and a conduit passing through the wall. To close. For different conduits, use sets of fire packing with different lengths and inner diameters.

In German Patent Publication No. 19852120, it is possible to wind the pipe around the conduit with a simple operation.
A sheet metal with regularly arranged openings is described.
The end face of the fireproof packing can be attached to the wall by means of a separate L-shaped wall ken which hangs radially inward from the outside. Such wall halken must have a specific length that fits each fireproof packing.

[0004] DE-A-4,411,220 describes a fireproof packing provided with a sheet metal which the user bends and closes around the conduit at the site, along the radially inner surface of the sheet metal. Then, a large gap fire block is placed like expansive graphite. It is adapted to be attached to the wall by means of a separate L-shaped wall ken which is detachably arranged so as to be engaged from the outside in the radial direction and formed in the sheet metal of the fireproof packing. Eyelet formation requires special and costly tools.

[0005]

SUMMARY OF THE INVENTION The object of the invention is therefore to obtain a fireproof packing which can be manufactured in large quantities and is technically simple.

[0006]

In order to achieve this object, the fireproof packing of the present invention is a metal part which is in close contact with and can be closed around the conduit, and which is a metal part provided with a plurality of openings.
It is provided with a metal part on which an enormous gap-filling fireproof mass is arranged on the inner surface and at least one L-shaped wall ken which is attached to the wall, and which is fixed to the outer surface of the metal part. In the possible fire-proof packing, in the opening of the metal part, a fixing means which radially penetrates and terminates radially outward of the conduit is introduced, and the fixing means is provided in the opening and / or the fire block. It is characterized in that it can be fixed in a self-regulating manner.

By fixing the fixing means in the opening of the metal part and / or the fireproof mass in a self-regulating manner, the fixing means of the detachable wall Haken can be fixed by simply press-fitting into the opening. Since the same wall hakken can be applied to fireproof packings of different lengths, the flexibility is increased, and a large amount of fireproof packings can be manufactured by one tool.

If the metal part of the fireproof packing is constituted by a perforated plate or a metal plate with an opening such as expanded metal, the opening is already provided in the semi-finished material, and the final finishing step can be omitted, which is advantageous. is there.

The fixing means is provided only in a zone in which at least a part of the peripheral diameter thereof can be expanded more than the original inner diameter of the opening,
For example, assuming that the opening has a diameter larger by 1.0 mm, after the opening has overcome the deformation, the elasticity of the metal plate causes the fixing means to lock due to frictional force and self-regulate (self-hold).

It is preferable that the fixing means is formed into a barbed shape with its end protruding sharply so that it can be easily inserted into the opening.

The fixing means is arranged in the space of the opening,
Providing at least one length region, which can be conveniently and conveniently housed in a stable self-regulating position, adjacent to the radial expansion or the wide halken, for example, to the metal part of the wall halken even under vibrational stress Fixing becomes more reliable, which is preferable.

When the wall Haken is provided with two fixing means which are spaced apart from each other, it is preferable that the wall Haken is stably fixed to the metal portion.

When the fixing means is made to penetrate the opening existing in the overlap region, the metal portion can be closed in the circumferential direction by the fixing means, which is preferable.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, a fireproof packing 1 having an enormous gap filling fireproof lump 2 which is distributed radially inward in a circumferential direction is curved around a conduit 3 and has an overlap region X. A metal part 4 of expanded metal that forms a closed loop and three L-shaped wall halkens 5,
The metal parts 4 are screwed to the wall 6 by these wall halkens 5. The wall halken 5 is fixed to the outer surface of the metal portion 4, and at this time, six fixing means 8 are radially penetrated into each of the openings 7 of the metal portion 4 to fix the opening 7 in a self-regulating manner. 8 terminates radially outward of the conduit 3. Wall Haken 5 to be placed in the overlap area X
Simultaneously connects both ends of the metal portion 4 that closes the circumferential direction.

As shown in FIGS. 2 and 3, a part of the nail-shaped fixing means 8 whose end portion is pointed like a barb and protrudes from the wall Haken 5 has a diameter of U, and the original inner diameter of the opening 7. An elastically expanding zone Z indicated by hatching from I
Just stick out. The fixing means 8 has an intermediate length region L adjacent to the radial bulge 9, which length region L is arranged in the space of the opening 7 in the self-regulating position.

[Brief description of drawings]

FIG. 1 is a perspective view of a fireproof packing of the present invention.

FIG. 2 is an enlarged perspective view of the wall halken and fixing means of FIG.

FIG. 3 is an enlarged detailed view of circle III in FIG.

[Explanation of symbols]

1 Fireproof packing 2 Gap fire block 3 conduits 4 metal parts 5 Wall Haken 6 walls 7 openings 8 means 9 Radial enlargement

Claims (8)

[Claims] 1. A fireproof mass (4) which is a metal part (4) which is in close contact with the periphery of a conduit (3) and can be closed, and which is provided with a plurality of openings (7), and which has an extremely large space on its inner surface. It comprises a metal part (4) on which the 2) is arranged and at least one individual L-shaped wall ken (5) for attachment to the wall (6), the wall ken (5) being attached to the outer surface of the metal part. In a fireproof packing that can be fastened to the fixing means (8), which penetrates radially into the opening (7) of the metal part (4) and terminates radially outside of the conduit (3).
The fixing means (8) introduces the opening (7) and / or
Alternatively, a fire-proof packing characterized in that it can be fixed in the fire-proof lump (2) in a self-regulating manner. 2. The metal portion (4) is provided with the opening (7).
The fireproof packing according to claim 1, wherein the fireproof packing is formed by a metal plate having an opening. 3. The fixing means (8) has such a diameter that at least a part of its circumference (U) is larger than the original inner diameter (I) of the opening (7) by an expandable zone (Z). The fireproof packing according to claim 1 or 2, which is provided. 4. The fire-proof packing according to claim 1, wherein the fixing means is formed in a barb shape with a pointed end protruding. 5. The fireproof packing according to claim 1, wherein the fixing means (8) has a nail shape. 6. The opening (7) in the fixing means (8).
6. The fireproof packing according to any one of claims 1 to 5, wherein the fireproof packing is arranged in the space and has at least one length region (L) which can be accommodated in a stable self-regulating position without waste. 7. The wall haken (5) is provided with two securing means (8) spaced apart from each other.
The fireproof packing according to any one of items 1 to 6. 8. The fire protection packing according to claim 1, wherein the fixing means (8) penetrates the opening (7) existing in the overlap area (X).