JPH08312023A - Fireresistant joint material and fireresistant joint structure using it - Google Patents

Abstract

PURPOSE: To enhance workability by wrapping a ceramic fiber-made square bar-shaped fireresistant part with a cover film, and adding a reinforcing part of a synthetic resin foaming body having a width equal to the fireproof part to the fireproof part. CONSTITUTION: A cover film 2 of polyethylene and polypropylene or the like is wound round and adhered to a ceramic fiber-made square bar-shaped fireresistant part 1. A reinforcing part 3 which has a width almost equal to one surface of this fireresistant part 1 and whose cross-sectional shape is a semicircular shape or a semicircular shape on a square shape or a square shape and which is made of a polyolefine type foaming body, is adhered or adhesively added to the fireproof part 1, and a fireproof joint material is molded. Next, this fireproof joint material is pushed in a frame groove 7 of a sash 6 by turning the reinforcing part 3 inside, and a sealing material 10 is filled from above the fireproof joint material. Therefore, fire resistance of a joint part can be easily obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof joint material used for, for example, a glass fitting portion of a sash of a building or a butt portion of a partition wall panel, and a sash and a fireproof joint structure of a partition wall panel using the same. .

[0002]

2. Description of the Related Art Heretofore, there has been known a fire-resistant joint material using a felt or blanket product made of ceramic fiber. This is a small amount of binder or needle processed into a felt or blanket shape, which is processed into a square rod and wrapped with a synthetic resin film. For example, joints of precast concrete products such as building exterior wall materials. Is used for.

[0003]

By the way, the above-mentioned conventional refractory joint material is basically used in the pre-attachment method which is attached to the abutting end face portion in advance. Is not taken into account so much.

That is, although the above-mentioned processed ceramic fiber rod is wrapped in a synthetic resin film,
In addition to being weak in terms of material and easy to bend, it is easy to stretch and break against pulling force. Therefore, there is a problem in that it is difficult to quickly and evenly press it into the joint portion when it is used. In addition, since the elastic repulsion force is small, there is a problem that even if an attempt is made to push it in, it is compressed only in the middle of the joint and does not proceed any further, and it is difficult to reliably push the joint to the deepest part. In addition, after the ceramic fiber has been pushed in, the backup material has to be pushed in, and then the sealing material has to be applied. Since the work is divided into three times, there is also the problem of poor workability.

On the other hand, in order to avoid the spread of fire at the time of fire, it is desired to impart fire resistance to the joints of the sash of the building and the partition wall panel so that the invasion of flames can be blocked. Since the refractory joint material is pushed into the joint portion afterward, the conventional refractory joint material as described above has a serious problem.

The present invention solves the above-mentioned problems of the prior art, and improves the handleability and workability of a fire-resistant joint material using a ceramic fiber rectangular bar processed product when it is pressed into the joint and used. Therefore, it is an object of the present invention to easily provide fire resistance to joints of sashes and partition wall panels.

[0007]

To this end, according to the invention of claim 1, as shown in FIG. 1, a square rod-shaped refractory portion 1 made of ceramic fiber and a cover made of synthetic resin for wrapping the refractory portion 1 are provided. A fire-resistant joint material is composed of a film 2 and a reinforcing portion 3 made of a polyolefin foam which is attached to the cover film 2 along one surface of the fire-resistant portion 1 and has a width substantially equal to the one surface of the fire-resistant portion 1. Is what you are doing.

According to a third aspect of the present invention, the joint of the sash is constructed by using this fire resistant joint material.
In the invention of (1), the joint of the partition wall panel is constructed by using this fire resistant joint material.

[0009]

Embodiments and Functions First, one embodiment of the fire resistant joint material according to the present invention will be described with reference to FIG.

In the figure, reference numeral 1 designates a ceramic fiber rectangular rod-shaped refractory portion. Ceramic fiber is made by melting and fibrating a material whose main component is alumina and silica.
The fire resistant part 1 can be obtained by collecting a small amount of a binder or needle into a felt or blanket and then cutting it into a square rod. The ceramic fiber is preferably water-repellent in order to prevent a decrease in elasticity due to water absorption.

The refractory portion 1 is wrapped in a synthetic resin cover film 2. The cover film 2 is the fireproof part 1
Even if it is wrapped around and the ends are glued or fused,
It may be a tubular film having no seal portion. The cover film 2 protects the fireproof portion 1 to prevent fraying and water absorption, and also assists the attachment of the reinforcing portion 3 and the adhesive 4 described later. As the cover film 2, for example, a film of polyethylene, polypropylene or the like can be used. Further, the cover film 2 is a heat-shrinkable film, and when the cover film 2 is wound and then heat-shrinked, the cover film 2 can be easily fitted to the fireproof portion 1.

On one surface of the fireproof portion 1 around which the cover film 2 is wound, a reinforcing portion 3 having a width substantially equal to the surface is attached. The reinforcing portion 3 reinforces the soft fire resistant portion 1 to give the fire resistant joint material proper waist strength, tensile strength and elastic repulsion. It must consist of foam. Further, when the present fire resistant joint material is pushed into the joint portion, the reinforcing portion 3 needs to have a width substantially equal to that of the fire resistant portion 1 so that the entire refractory joint member can be pushed in evenly.

That is, since the present refractory joint material is provided with appropriate waist strength and tensile strength by the reinforcing portion 3, the present refractory joint material can be easily paid out along the joint portion, Moreover, the fireproof part 1 does not stretch or break when pushed. The fire-resistant joint material is inserted into the joint portion from the fire-resistant portion 1 side and pushed into the joint portion by pushing the head of the reinforcing portion 3, and the reinforcing portion 3 has an appropriate elastic repulsion force. Moreover, since the width of the refractory portion 1 is substantially equal to that of the refractory portion 1, the entire refractory portion 1 can be uniformly pushed into the joint portion, and the refractory portion 1 is not pushed laterally.

Polyolefin synthetic resin foam constituting the reinforcing portion 3 includes polyethylene, polypropylene,
A copolymer containing 50% by weight or more of these may be mentioned. The expansion ratio may be adjusted so that an appropriate reinforcing effect can be obtained.

The cross-sectional shape of the reinforcing portion 3 may be rectangular, but it is semicircular, semicylindrical or rectangular because the appropriate reinforcing action can be obtained without hindering the indentation of the refractory joint material into the joint. It is preferable.

The attachment of the reinforcing portion 3 may be performed by an adhesive, but it is easy to use, for example, an acrylic double-sided adhesive tape or a soft butyl rubber tape. The refractory portion 1 is made of a ceramic fiber aggregate and is made of a material that is difficult to be directly adhered or adhered, but since it is wrapped with the cover film 2 as described above, the adhesion or adhesion is easy.

When the present fire resistant joint material is used for an application in which it is advantageous to orient it firmly (for example, for sealing a glass fitting portion of a sash), the surface opposite to the surface on which the reinforcing portion 3 is attached is used. It is preferable to attach an adhesive 4 and cover it with release paper 5.

The fire-resistant joint material can be manufactured and used as a long product, but from the viewpoint of easy handling,
It is preferable to use a standard size product according to the application. Depending on the application, for example, when used for sealing the glass fitting portion of the sash, the fire resistant portion 1 has a width of 10 to 30 mm and a height of 10 to 20 mm.
mm, the reinforcing portion 1 has a semicircular cross section having the same diameter as the width of the fireproof portion 1, and the length is preferably about 1 m.

Next, a fire resistant joint structure of a sash using the present fire resistant joint material will be described with reference to FIG.

In the figure, 6 is a sash made of aluminum or iron,
A glass 9 is fitted into the frame groove 7 of the sash 6 while being supported by a setting block 8 (generally made of synthetic rubber). The glass 9 is preferably a glass with a mesh in order to improve fire resistance.

In the frame groove 7 in which the glass 9 is fitted, the glass 9 is sandwiched so that the present fire-resistant joint material is pushed with its reinforcing portion 3 facing the inside of the sash 6.
Even in a narrow joint portion such as the frame groove 7 of the sash 6, the present fire resistant joint material has an appropriate waist strength as described above,
Since it has tensile strength and elastic repulsion, it can be easily pushed into the deepest part of the frame groove 7 along the frame groove 7.

A sealing material 10 is filled in the frame groove 7 from above the fire resistant joint material. As the fire resistant sealing material 10, for example, a commonly used silicone material can be used.

In FIG. 2, the same reference numerals as those in FIG. 1 indicate the same members.

When the joint portion of the sash is constructed as described above, the fire resistant portion 1 of the present fire resistant joint material maintains the fire resistant state around the glass 9 even when a fire is generated and exposed to a considerably high temperature. The flame can be prevented from entering the room and the spread of fire can be prevented.

Further, the fire resistant joint structure of the partition wall panel using the present fire resistant joint material will be described with reference to FIG.

Reference numeral 11 in the figure denotes a partition wall panel such as a precast concrete product. As shown in the drawing, the end faces of the two partition wall panels 11 are butted against each other with a slight gap. Attachment grooves 12 facing each other are formed at the edge portions on one side of the two partition wall panels 11. This fire resistant joint material is 2
The reinforcing portion 3 is pushed outward, straddling the mounting groove 12 of the partition wall panel 11. Even if it is pushed into the mounting groove 12 after such abutting, since the present fire resistant joint material has appropriate waist strength, tensile strength and elastic repulsion as described above, it can be easily mounted. It can be pushed along 12 to the deepest part of the mounting groove 12.

When used for joints between the partition wall panels 11, it is preferable not to use the adhesive 4 described in FIG. 1 in order to allow the partition wall panels 11 to expand and contract due to temperature changes. In addition, in the mounting groove 12,
Sealing material 10 filled from above the fireproof joint material
As the material, the same material as that normally used for fire resistance is used.

In FIG. 3, the same reference numerals as those in FIG. 1 denote the same members.

When the joints between the partition wall panels 11 are constructed as described above, even if a fire is generated and exposed to a considerably high temperature, the lower resistant portion 1 of the present fire resistant joint material is provided between the partition wall panels 11. The fireproof state of the gap can be maintained, the flame can be prevented from flowing into the adjacent chamber, and the spread of fire can be prevented.

[0030]

The present invention is as described above and has the following effects.

(1) Since it has appropriate waist strength, tensile strength, and elastic repulsion, it can be easily pushed along the joint to the deepest part of the joint, which is easy to handle and work. Excel.

(2) Since the reinforcing portion 3 is set in advance, it is not necessary to separately insert a backup material and the workability is good.

(3) Since biased indentation or indentation with an insufficient depth is unlikely to occur, the initial fire protection performance can be reliably obtained.

(4) The fire resistance of the joint portion of the fireproof sash or fireproof partition can be easily obtained, and the spread of fire can be prevented by these.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a refractory joint material according to the present invention.

FIG. 2 is a cross-sectional view showing an example of a refractory joint structure of a sash using the refractory joint material according to the present invention.

FIG. 3 is a cross-sectional view showing an example of a fire resistant joint structure of a partition wall panel using the fire resistant joint material according to the present invention.

[Explanation of symbols]

 1 Fireproof part 2 Gover film 3 Reinforcing part 4 Adhesive 5 Release paper 6 Sash 7 Frame groove 8 Setting block 9 Glass 10 Sealant 11 Partition wall panel 12 Mounting groove

Claims (4)

[Claims] 1. A rectangular rod-shaped refractory portion made of ceramic fiber, a synthetic resin cover film that surrounds the refractory portion, and is attached to the cover film along one surface of the refractory portion, and the one surface of the refractory portion. A refractory joint material, comprising a reinforcing portion made of a polyolefin foam having a substantially equal width. 2. The refractory joint material according to claim 1, wherein the cross-sectional shape of the reinforcing portion is semicircular, semicylindrical or square. 3. The fire-resistant joint material according to claim 1 or 2 is pushed into the frame groove of the sash into which the glass is fitted, with the reinforcing portion facing the inside of the sash, and the fire resistance in the frame groove is improved. A sash fire-resistant joint structure, which is characterized in that a sealing material is filled on the joint material. 4. The fire resistant joint material according to claim 1 or 2 is provided with mounting grooves facing each other at one end edge of one partition wall panel of which two end faces are butted against each other. Toward the other side, the partition wall panel is characterized in that it is pushed across the mounting groove of the two partition wall panels, and that the sealing material is filled on the refractory joint material in the mounting groove. Fireproof joint structure.