JPS6164005A - Insulating support for wire - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The insulating support of the present invention is used to attach a gas-insulated high-voltage electric wire to the outer periphery of a center conductor of another cable.

(Prior Art) Conventionally, there has been no suitable insulating support of this type. To put it simply, there were only cables for communication cables, such as those shown in Figures 3 and 4. Of these, the one in Figure 3 has a C[l r-i part B formed on a dish-shaped base material A, and the one in Figure 4 has an opening formed on a disc-shaped base material C. be.

(Problems with the prior art) The conventional one shown in the figure simply has an opening formed in a disc-shaped or dish-shaped base material, so the thickness of the opening is only the thickness of the base material. When placed over the center conductor, it lacks stability and tends to tilt or come off the center conductor.

(Means for Solving the Problems) An object of the present invention is to provide an insulating support that is easy to cover a center conductor, is stable when covered, and does not come off easily from the center conductor.

As shown in FIG. 1, the insulating support l of the present invention has a fitting part 5 which is fitted over the outer periphery of the center conductor 4 and protrudes in the longitudinal direction of the center conductor 4 into the push-in recess 3 formed in the base material 2. formed,
The guide edges 6 on both sides of the push-in recess 3 are formed to protrude below the fitted portion 5, and the inner surface 7 of the guide edges 6 is formed to bulge inward as necessary.

(Function of the Invention) In order to cover the insulating support 1 of the present invention on the center conductor 4 during the manufacturing process, for example, as shown in FIG. The insulating support 1 is placed on the center conductor 4 from the insulating support mounting device 9 with appropriate heat, and the fitted portion 5 of the support 1 is placed over the outer periphery of the center conductor 4.

Thereafter, a metal band-shaped sheath material 10 made of aluminum, copper, stainless steel, etc. is vertically attached to the outer periphery of the supporting insulator 1.

It is gradually bent into a tubular shape by a forming roller 11 to cover the outer periphery of the supporting insulator 1, and then a sheath material 10
Weld the joints with a welding machine 12, inspect the welded parts with a welding inspection device 13, and then use a device consisting of several rollers to form a sheath 16 by applying waves with a device 15, It is wound onto the take-up drum l7.

(Example) The base material 2 of the insulating support of the present invention is made of plastic such as polyethylene or epoxy resin.
The genus Ninja is preferable.

When the base material 2 and the fitting part 5 are made of plastic, they may be integrally molded, or they may be molded separately and combined.

In addition, 18 in C of FIG. 1 is a twisted wire conductor constituting the center conductor 4, 19 is a corrugated metal tube constituting the center conductor 4, and 20 is a corrugated sheath provided on the outer periphery of the insulating support l.

(Effect of the invention) The insulating support of the present invention has the following effects.

(1) The fitted part 5 is formed in the push-in recess 3 of the base material 2, and is formed to protrude in the longitudinal direction of the center conductor 4, so it is very stable when placed over the center conductor 4,
The insulating support 1 that has been carefully covered will not tilt, fall down, or come off.

(2) Since the guide edges 6 on both sides of the push-in recess 3 protrude below the fitting portion 5, it is preferable that the guide edge 6 can be easily placed over the center conductor 4.

The fitted part 5 may be molded of plastic, but the special holiday 1 will not come out inadvertently, making it even more stable.

[Brief explanation of the drawing]

Figure 1 shows an embodiment of the insulating support of the present invention.
A is a front view, the opening is a cross-sectional view taken along the line A-A of A, C is a partially vertical front view of a state in which a sheath is placed on the outer periphery of an insulating support placed over a center conductor, and Fig. 2 is an insulating support of the present invention. FIGS. 3 and 4 are explanatory views of a conventional example in which the body is placed over the center conductor. l is the insulating support 2. (The material 3 is the push-in recess 5, the fitted part 6 is the guide edge 7 is the inner surface of the guide edge. Applicant: Kyowa Electric Wire Co., Ltd. Patent attorney: Masaharu Kobayashi 1, “l渥,”, 1・mul ( 3) If the inner surface 7 of the guide edge 6 of the base material 2 is formed to bulge inward, the +p' surface of the insulating support attached to the center conductor 4 can be
D (no change in content) ``''Written amendment May 7, 1985 1 Director of the Patent Office Manabu Shiga 2 Title of the invention Insulating support for electric wires 3 Relationship to the case of the person making the amendment Name of address of the patent applicant Kyowa Electric Cable Co., Ltd. 4 Agent Address: IOI O3-866-33275
Date of amendment order Proprietor 6 Target of amendment Drawing plan 7 Contents of amendment As per the engraving and attached sheet of the drawing originally attached to the application (no change in content)

Claims (1)

[Claims] A fitted part to cover the outer periphery of the center conductor is formed in the push-in recess formed in the base material so as to protrude in the longitudinal direction of the center conductor, and guide edges on both sides of the push-in recess project downward from the fitted part. 1. An insulating support for electric wires, characterized in that the inner surface of the guide edge is formed so as to bulge inward if necessary.