JPH0828768A - Fitting material for internal caulking hose - Google Patents

Abstract

PURPOSE:To install a hose on an internal caulking jig in the optimum condition by winding fitting material to a hose part to be applied to an internal caulking metal part, and giving a proper tightening force to a development quantity of a development part to the hose part. CONSTITUTION:In the case of connecting a hose 2 to an internal caulking device 1 using an internal caulking metal 3, when a differential diameter exists between the internal caulking metal 3 and the hose 2, a belt of fitting material 10 comprising rubber or plastic elastomer in which an adhesive or pressure sensitive adhesive is applied on one surface or on the whole surface is wound on a tightening part of the hose 2 so as to fill a differential diameter part. Simultaneously as a caulking part 31 of the internal caulking device 1 is caulked, the hose 2 and the fitting material 10 are held inside the internal caulking metal 3 by pressure suitable to development quantity of a development part 11, thereby all the bodies are connected to each other integrally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fitting material for an internal caulking hose, and more specifically, when there is a difference in diameter between an internal caulking metal fitting and a hose attached to the metallic fitting, the caulking amount required by the caulking tool is more than necessary. The present invention relates to a fitting material used to compensate for the diameter difference.

[0002]

2. Description of the Related Art As shown in FIG. 8, when there is a diameter difference C between the inner caulking metal fitting 3'and the hose 2'which is more than a desired amount, the expanding amount of the expanding portion 11 'of the inner caulking jig is increased. Even if it is maximized, the desired fastening function cannot be obtained.

Further, as shown in FIG. 9, when the hose body of the hose 2'is non-stretchable like Sunny Hose (trade name), the expansion amount of the expansion portion 11 'of the caulking jig exceeds the limit amount. If this is applied, the hose body will be damaged.

[0004]

As described above, the present invention is directed to the case where there is a diameter difference between the inner caulking jig and the hose,
Alternatively, a fitting material is interposed between the two members so that a desired inner caulking jig can be applied to a sunny hose or the like that cannot be expanded more than desired. is there.

[0005]

The basic product of the above-mentioned fitting material will be described below with reference to FIG. FIG.
And the fitting material for inner caulking which concerns on this invention is shown by FIG. The fitting material shown in FIG. 1 is formed as a thin strip 10 and the fitting material shown in FIG. 2 is a cylindrical body 1.
It is formed as 0. Both of the above-mentioned fitting materials are made of rubber or plastic elastomer and have Hs hardness (rubber cord) of 60 ° to 90 °.

[0006]

The fitting material according to the present invention is used when there is a diameter difference between the inner caulking metal fitting and the hose attached to the caulking metal fitting, or when the hose itself cannot exert the pressing force of the strength of the inner caulking tool. It is interposed between the caulking metal fitting and the hose to keep the pressing force of the inner caulking tool at an optimum amount.

[0007]

Embodiments of the present invention will be described below with reference to FIGS. As shown in FIG. 3, when there is a diameter difference portion C between the inner caulking metal fitting 3 and the hose 2, the fitting material according to the present invention is applied. By winding around the fastening portion of the hose to fill the inside of the diameter difference portion C and operating the expanding portion 11 of the inner caulking tool 1 in this state, as shown in FIG.
At the same time that the caulking portion 31 of the inner caulking tool is caulked, the hose and the fitting material are clamped in the inner caulking metal fitting 3 by the pressing force adapted to the expanding amount of the expanding portion 11.

Further, as shown in the figure, by extending the fitting material 10 by a desired length M from the end portion of the inner caulking metal fitting, it functions as a protective material for this portion.
Although not particularly shown, it is possible to arbitrarily use a cylindrical body having a wall thickness h adapted to the diameter difference instead of the band-shaped fitting material.

Another embodiment of the band-shaped fitting material according to the present invention will be described as follows. Figure 5 shows the fit material 1
This shows the case where the adhesive 20 or the adhesive material is applied extremely thinly to one side of No. 0, for example, like a cellophane tape. By doing so, when the fitting material is wound around the hose, the winding end is “stopped”. It is convenient and unnecessary. It is desirable that the adhesive 20 applied to the fit material should be transferred to the fit material, and if necessary, as shown in FIG. It may be applied.

The present invention is not limited to the above embodiment, and as shown in FIG. 9, in the case of a sunny hose, there may be no difference in diameter between the sunny hose and the inner hose fitting. In this case, as shown in FIG. 7, in the normal state, a diameter difference C is revealed between the inner caulking metal fitting 3 and the hose 2,
By filling the fitting material 10 between the diameter differences C and operating an inner caulking jig (not shown) to fasten the hose, the optimum fastening force can be applied to the hose.

The hose is not limited to the sunny hose, but it is possible to give an optimum holding force between the inner caulking metal fitting and the hose by causing a diameter difference in a normal state to appear depending on the property of the hose and interposing a fitting material. Is. Further, the shape of the uneven strips provided on the expanded portion of the inner caulking jig or the shape of the caulking portion of the inner caulking metal fitting can be arbitrarily designed.

[0012]

As described above, according to the present invention, when the expansion amount of the inner caulking jig inappropriately increases or decreases the fastening force to the hose via the inner caulking metal fitting, the fitting material according to the present invention is mounted on the surface of the hose. The hose can be attached to the inner caulking jig in the optimum condition.

Further, according to the present invention, when there is a diameter difference between the inner caulking metal fitting hoses, the two can be joined by filling the diameter difference with a fitting material. Therefore, hoses of various diameters can be applied.

[Brief description of drawings]

FIG. 1 is an explanatory view of a fitting material according to the present invention.

FIG. 2 is an explanatory diagram of a fitting material according to the present invention.

FIG. 3 is an explanatory diagram of an embodiment of the present invention.

FIG. 4 is an operation diagram of an embodiment of the present invention.

FIG. 5 is a partially enlarged explanatory view of another embodiment of the present invention.

FIG. 6 is an explanatory diagram of another embodiment of the present invention.

FIG. 7 is a cross-sectional view of an essential part of another embodiment of the present invention.

FIG. 8 is a conventional cross-sectional explanatory view.

FIG. 9 is a conventional cross-sectional explanatory view.

[Explanation of symbols]

 1 Inner caulking tool 2 Hose 3 Inner caulking metal fitting 10 Fitting material 11 Inner caulking tool expanding portion 20 Adhesive 31 Caulking portion

Claims (4)

[Claims] 1. In an inner caulking type hose mounting device, wherein an inner caulking jig having a widened portion is used when a hose is attached to the inner caulking metal fitting, the hose portion corresponding to the inner caulking metal fitting is wound. A fitting material for an inner caulking hose characterized by being applied to the hose portion to provide a fastening force adapted to the amount of expansion of the expansion portion. 2. A fit material for an inner caulking hose, wherein the fit material according to claim 1 is formed of a rubber or plastic elastomer material and is also a strip-shaped thin plate. 3. A fit material for an inner caulking hose, wherein the fit material according to claim 1 is formed of a rubber or plastic elastomer material as a cylindrical body having a desired wall thickness. 4. One side of the band-shaped fitting material according to claim 2,
Fitting material for inner caulking hose with adhesive or viscosity applied to all or part.