JPH0615054Y2 - Seal material - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a sealing material that fills a joint portion such as a duct or various building materials to maintain airtightness.

[Conventional technology]

As shown in FIG. 3, this kind of sealing material 1 is formed in a long string shape having a cross section such as a circular shaft shape, and as shown in the example of the present invention in FIG. It is in a packing form, and the seal material 1 is peeled off from the protective tape at the time of use, cut into a required length, placed at the joint portion, and deformed by being compressed at the joint portion to keep the joint airtight. Is.

By the way, the sealing material 1 is made of unvulcanized rubber such as butyl rubber, and has a string-like shape having a cross-sectional area required to be airtight and to which elasticity that is deformable by pressurization is imparted. Therefore, the sealing material 1 needs to be attached to the joint portion in a shape peeled off from the protective tape in order to maintain proper airtightness.

For this reason, when constructing the sealing material, the length of all joints is calculated, and the cost of purchasing the sealing material in an amount corresponding to the length is recorded, which is borne by the owner.

However, since the sealing material has deformable elasticity as described above, it can be stretched freely when a tensile force is applied in the length direction and can be stretched for a long time. It is easy to stretch and use, and it is easy to reduce the consumption of the sealing material below the calculated amount.

[Problems to be Solved by the Invention] As described above, when the sealing material 1 is stretched and used, the third
As shown in the figure, in the sealing material 1 having the regular diameter D, the diameter d after the expansion becomes smaller in proportion to the amount of expansion, so that the sealing material is insufficient in quantity for maintaining the airtightness of the joint portion, Sufficient sealing performance cannot be obtained.

Further, since the seal portion cannot be seen from the outside after the construction, the owner and the manager are required to use the seal material without stretching.

Therefore, in view of the above points, an object of the present invention is to provide a sealing material that makes it impossible to stretch and use the sealing material and secure a proper amount of the sealing material with respect to the joint portion. Has an aim.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention adopts a configuration in which a non-stretchable member is embedded along the length direction in a sealing material body formed in a long shape having a required cross section.

[Action]

Since the non-stretchable material is embedded in the seal material body, it is not possible to stretch the seal material body, and the seal material is not stretched and used during the sealing process. The amount of sealing material can be secured.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 of the accompanying drawings.

As shown in the figure, the sealing material 11 has a structure in which a non-stretchable member 12 is embedded along the length direction in a sealing material main body 11a formed in a long shape having a required cross section, and as shown in FIG. The protective tape 13 and the protective tape 13 are formed in a roll-wrapped form.

The material of the non-stretchable member 12 is not particularly limited as long as it does not expand with respect to a tensile force, and the shape can be arbitrarily selected such as a thread shape or a tape shape. Incidentally, the material is a synthetic resin thread such as cotton thread and nylon. Etc. can be exemplified,
When heat resistance is required, various metal materials may be used.

Further, since the sealing material 11 is used after being cut to a required length, it is preferable that the non-stretchable member 12 is made of a material that can be easily cut.

The seal material 11 of the present invention has the above-mentioned structure, and since the non-stretchable member 12 is embedded in the seal material body 11a, even if the seal material body 11a is stretched, it is blocked by the non-stretchable member 12. Therefore, at the time of performing sealing, the sealing material 11 can be used only as it is in the shape of the product, so that an appropriate amount of the sealing material with respect to the joint portion can be secured, and the sealing material amount is insufficient. It is possible to prevent the occurrence of airtight leak.

〔effect〕

As described above, according to the present invention, since the non-stretchable member is embedded in the sealing material body, it becomes impossible to stretch and use the sealing material body. It is possible to secure a high degree of airtightness, and construction with high airtightness becomes possible, so that the owner or manager can make a reliable construction request.

[Brief description of drawings]

FIG. 1 is a perspective view of a sealing material according to the present invention, FIG. 2 is an enlarged sectional view of the same as above, and FIG. 3 is a perspective view of a conventional sealing material in an expanded state. 11 ... Sealing material, 11a ... Sealing material main body, 12 ... Non-stretchable member.

Claims (1)

[Scope of utility model registration request] 1. A seal material in which a non-stretchable member is embedded along a length direction in a seal material main body formed in a long shape having a required cross section.