JPS6316278Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a tensile support structure for stranded metal wires having an optical cable.

"Prior Art and Problems" Recently, optical-power composite cables, which combine electrically non-inductive optical cables with communication cables and power cables, have been attracting attention.This composite cable does not need to take measures against electromagnetic induction. Moreover, it has the advantage that the weight increase due to compounding is only about 2%.

However, when constructing the above-mentioned composite cable, since optical cables with low mechanical strength are combined, the tension support structure of the conventional overhead power line cannot be directly adopted.

The present invention has been made in view of the above circumstances, and aims to provide a tensile support structure capable of supporting optical cables with low mechanical strength without damaging them.

"Means for Solving the Problem" In order to achieve the above object, the present invention has a protective pipe in the center, and an optical cable is inserted into the protective pipe so that a wedge is formed near the end of the stranded metal wire. At the same time, the end portion of the stranded metal wire is crimped and fixed to the support body using a type clamp, and the end portion of the stranded metal wire is crimped and fixed to the clasp fitting. The optical cable that has been led out is taken out to the outside of the retaining fitting, and the optical cable terminal portion taken out to the outside is introduced into an optical cable connector installed on the support body.

"Embodiment" An embodiment of the present invention will be described below with reference to the drawings.

First, the structure of a stranded metal wire having an optical cable, which is the subject of this proposal, will be explained with reference to FIG. The wires 3 and 4 are twisted together in multiple layers (two layers in the figure), and an optical cable 5 for communication is inserted into the metal protection pipe 2.

Next, the tensile support structure of the stranded metal wire 1 having the optical cable will be explained with reference to FIGS. The stranded metal wire 1 passes through a wedge-shaped tightening clamp 8 fixed to the support body 6 via a connecting fitting 7, and is tensilely supported by the wedge-shaped tightening clamp 8 to the support body 6.
The terminal portion 1a is inserted and crimped into a sleeve 10 of a retaining fitting 9 provided at the top of the support 1, and is grounded to the support 6. and,
The optical cable 5 led out from the terminal part 1a of the metal stranded wire 1 is taken out to the outside through an outlet 11 formed through the flesh of the sleeve 10 near the tip of the terminal part 1a, as shown in FIG. and is introduced into an optical cable connector 12 installed on the outer surface of the support body 6. However, in this configuration, the metal strands 1 are attached to the wedge-shaped tightening clamp 8.
Since the end portion 1a is tensile supported by the support 1, it is sufficient that the end portion 1a is grounded to the support 6 at the stop fitting 9. It does not need to be crimped and fixed.

"Effects of the Invention" As is clear from the above explanation, according to the present invention, the terminal portion of the stranded metal wire 1 has a protective pipe 2 in the center and an optical cable 5 is inserted into the protective pipe 2. Since the vicinity is held and fixed to the support body 6 by the tightening force of the wedge-shaped clamp 8,
The optical cable 5 inside the metal strands 1 includes the metal strands 1
The stranded metal wire 1 can be supported under tension without the risk of compressing the optical cable 5, and therefore the stranded metal wire 1 can be supported under tension without the risk of compressing the optical cable 5. , and support 6
The end portion 1a of the metal stranded wire 1 at the upper retaining fitting 9 only needs to be grounded to the support 6, so there is no need to apply a large pressure force to fix it.
Therefore, there is no risk of the optical cable 5 being pinched at the terminal part, and the optical cable 5 can be taken out from the retaining fitting 9 and can be attached to the support 6.
Since it is introduced into the optical cable connector 12 installed in the optical cable connector 12 installed in It is something.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a stranded metal wire to which the structure of the present invention is applied, Fig. 2 is a schematic side view showing an embodiment of the present invention, and Fig. 3 is an enlarged view of a part of the retaining fitting in Fig. 2. FIG. In the figure, 1 is a metal stranded wire, 1a is a terminal part, 2
3 and 4 are metal pipes, 3 and 4 are wires, 5 is an optical cable, 6 is a support, 7 is a connecting fitting, 8 is a wedge-shaped clamp, 9 is a retaining fitting, 10 is a sleeve, and 12 is an optical cable connector.

Claims (1)

[Scope of utility model registration request] A stranded metal wire 1 has a protective pipe 2 in the center, and an optical cable 5 is inserted through the protective pipe 2. The vicinity of the terminal end of the stranded metal wire 1 is secured to the support body 6 by a wedge-shaped clamp 8, and the above-mentioned The end portion 1a of the metal stranded wire 1 is crimped and fixed to a stopper fitting 9 provided on the support body 6, and the optical cable 5 led out from the end portion 1a of the metal stranded wire 1 crimped and fixed to the stopper fitting 9 is held. It is characterized in that the optical cable 5 is taken out to the outside of the retaining fitting 9 through the draw-out opening 11 in the fitting 9, and the terminal portion of the optical cable 5 taken out to the outside is introduced into the optical cable connector 12 installed in the support body 6. Tension support structure of stranded metal wire with optical cable.