JP2553165Y2 - Cable termination structure - Google Patents

Description

The present invention relates to a terminal structure of a cable such as a submarine cable having an outer metal wire around a cable core.

2. Description of the Related Art As a terminal structure of a cable such as a submarine cable having an outer metal wire, for example, a structure described in Japanese Utility Model Laid-Open No. 61-18047 is known. According to the terminal structure described in the publication, as shown in FIG. 3 attached to the present application, the cable core 2 covered with the metal sheath 1 is provided with the neo seal 3 on the terminal and the cap 4 is fitted thereto. And
A self-fusing tape such as a Cerbon (registered trademark of Showa Electric Wire & Cable Co., Ltd.) tape and a PVC tape 5 are wrapped thereon to be waterproofed. The exterior metal wire 6 pulled out from the cable terminal is bound in a folded state at the terminal, and the binding portion is fixed with an epoxy resin 7 or the like. In this state, the wire net 8 is covered over the entire cable terminal.

However, according to such a conventional cable terminal structure, it takes a long time to cure the epoxy resin 7 and the working efficiency is poor, and the wire net 8 used is difficult to manufacture. Therefore, a considerable amount of manufacturing time is required, and there are problems in terms of delivery time and manufacturing cost. Further, when the cable end is pulled by a rope or the like, the fixed portion made of the epoxy resin 7 can withstand a certain amount of load in the longitudinal direction of the cable, but has insufficient strength against a load in the radial direction. Cracks may occur.

Accordingly, an object of the present invention is to provide a cable terminal structure that does not require a conventionally used wire net, is strong in strength, is simple in cable terminal processing, and can significantly reduce working time. It is to provide.

Means for Solving the Problems The above object is achieved by the cable terminal structure according to the present invention. In summary, the present invention relates to a cable terminal structure having a cable core and an outer metal wire provided surrounding the cable core, wherein the cable terminal structure extends outward from the terminal of the cable core and is drawn out. The exterior metal wire is bound by a first wire clip, and further, the exterior metal wire in a portion ahead of the binding location by the first wire clip is turned back, and the exterior metal wire is pulled out at a location near the cable core end. A terminal structure of a cable, wherein the cable end structure is bound by a second wire clip together with the base end portion.

Hereinafter, the cable terminal structure of the present invention will be described in more detail with reference to the drawings.

In FIG. 1, a cable having an outer metal wire 6 such as a submarine cable has a cable core 2 covered with a metal sheath 1 located at the center thereof. FIG. 1 shows only one cable core 2 for easy understanding, but usually three or more cable cores 2 as shown in FIG. Is provided.

Generally, as shown in FIG. 2, the submarine cable is provided with an interposing jute 9 on the outer periphery of the cable core 2 on which the metal sheath 1 is fitted, and is provided with a winding tape 10, and further on the outer periphery thereof. The seat layer 11 is arranged. The exterior metal wire 6 is disposed outside the seat floor layer 11, and the exterior metal wire 6
Is provided with a protective layer 12 of rubber or the like, and a coating layer 13 is provided on the outer peripheral surface thereof.

In the end of the cable having such a configuration, the protective layer 12 is peeled off to expose the cable core 2 with the metal sheath, the outer metal wire 6, and the like as shown in FIG. Next, in the same manner as in the related art, the cap 4 is fitted after the neo seal 3 is applied to the end of the cable core 2 with the metal sheath. Although not shown in FIG. 1, the hem 4a of the cap 4 is covered with a cellon tape (self-fusing tape) and a PVC tape 5 (FIG. 3), and is waterproofed.

Further, the exterior metal wires 6 are bundled with the first U-shaped wire clip 21 while being aligned. Then,
The part 6a ahead of this binding point is folded back into a U-shape to open a hole.
23, the first U-shaped wire clip 21 is formed.
At the base end side of the bundling point, together with the base side portion 6b of the exterior metal wire 6, is bound by the second U-shaped wire clip 22. The U-shaped wire clips 21 and 22 may be those commonly used and known to those skilled in the art.

According to the experiments of the present inventors, the terminal structure of the cable thus bound has sufficient strength even when the cable is pulled through the opening 23 of the exterior metal wire 6 through a rope or the like. Was.

Effect of the Invention As described above, the terminal structure of the cable according to the present invention, in which the first and second U-shaped wire clips are used to mechanically bind the exterior metal wires, is a conventional wire net. Is not required, the terminal treatment of the cable is simple, the working time can be remarkably reduced,
It is strong in terms of strength, and can be easily pulled by a rope or the like, and is extremely effective in practice.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the cable terminal structure of the present invention, and FIG.
FIG. 1 is a sectional view of a cable, and FIG. 3 is a sectional view of a conventional cable terminal structure. 1: Metal sheath 2: Cable core 4 cap 6: Exterior metal wire 21, 22: Wire clip

Claims (1)

(57) [Scope of request for utility model registration] 1. A terminal structure of a cable having a cable core and an external metal wire provided to surround the cable core, wherein the external metal extends outward from an end of the cable core and is drawn out. The wire was bound with a first wire clip, and further, the outer metal wire in a portion ahead of the binding portion by the first wire clip was turned back, and the outer metal wire was pulled out at a location near the cable core end. A terminal structure for a cable, wherein the cable end structure is bound with a second wire clip together with a base end portion.