JPH0879928A - Cable separation tool - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cable separating tool which can easily separate a self-supporting cable. A cable separating tool according to the present invention has a first sharp portion 100a that can be inserted into a cable jacket between a cable body and a support wire. 1st sharp part 10
A first holding portion 100b for holding the cable body is continuously formed at 0, and the cable body holding member 10 is formed.
Configures 0. Similarly, the second sharp portion 200a and the second sharp portion 200a
The support wire holding member 200 having the second holding portion 200b that holds the support wire continuously with the sharp portion 200a is the pin 50.
It is rotatably connected to the cable body holding member 100 by 0. Cable body holding member 100
A compression spring 300 is provided between the support wire holding member 200 and the support wire holding member 200.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable separating tool used for separating a supporting wire of a self-supporting cable from a cable body.

[0002]

2. Description of the Related Art Conventionally, a self-supporting cable (so-called SS cable) has been used as a cable stretched between utility poles. As shown in FIG. 4, the self-supporting cable 1 is composed of a supporting wire portion 1a made of a plurality of steel wires a and a cable body portion 1b made of a plurality of cable units b.

FIG. 5 shows a suspended state of a cable using such a self-supporting cable. The support wire portion 1a and the cable main body portion 1b of the self-supporting cable 1 are separated from each other and are retained by the hanging hardware 3 mounted on the utility pole 2. A line guard 4 is wound around the support wire portion 1a, and a spiral sleeve 5 is wound around the cable body portion 1b. As is apparent from this suspended state, in order to suspend the cable, it is indispensable to separate the support wire portion 1a of the self-supporting cable 1 from the cable main body portion 1b. The simplification and security of are required.

FIG. 6 is a side view of a conventional tearaway tool used to pull apart a self-supporting cable. The separating tool includes two supporting wire holding members 20 for holding the supporting wires and one cable body holding member 10 for holding the cable main body when separating the cables.
Support wire holding member 20 and cable body holding member 10
Has a bifurcated distal end, into which a support wire and a cable body are inserted respectively. The projecting portions (sharp parts) of the supporting wire holding member 20 and the cable body holding member 10 have sharp tips, and they overlap each other in the steady state of the separating tool. In a steady state, the detaching tool is inserted into the gap between the support wire and the cable body from the protruding portion, and is operated so as to open the holding portion from the state where the support wire and the cable body are held to separate the support wire and the cable body.

A link member 30 is provided at the rear of the support wire holding member 20 and the cable body holding member 10, and a screw portion 40 and a screw portion 40 for operating the link member 30 are provided at the rear portion of the link member 30. A nut 50 for turning is provided. By tightening the nut 50, the support wire holding member 2 is provided via the screw portion 40 and the link member 30.
0 and the cable body holding member 10 move in opposite directions to separate the support wire and the cable body.

In the conventional separating tool having such a structure, the supporting wire and the cable body are separated by using two separating tools. In the detaching work, first, a cutter is used to make a slit in the cable jacket between the support wire and the cable body, and then the gripping metal fitting 50 of the detaching tool is gripped by hand or a dedicated tool, and two pieces are separated at the center of the slit. Fully insert the tool through the protruding part to hold the support wire and cable body. Next, the nut is tightened to open the support wire holding portion and the cable body holding portion to separate the support wire from the cable body. This results in a sufficiently spaced apart section between the support wire and the cable body.

[0007]

However, in the conventional separating tool, in order to tighten the nut 50 after inserting the separating tool into the break between the support wire and the cable body and moving it to the end of the break. A hand or a special tool for gripping the grip 60 must be released. Since the grip tool 60 is released, the separation tool tilts due to the weight of the grip tool 60, and the support of the separation tool becomes unstable.
There is a problem that it is difficult to tighten the nut 50, and when performing work at a high place, both hands must be used for the screwdriver work with a hand or a tool, which is dangerous. .

Therefore, the present invention has been made to solve the above drawbacks, and by providing a tool for easily separating the self-supporting cable, the safety of the work is ensured and the workability is improved. The purpose is to let.

[0009]

In order to achieve the above object, the present invention provides a cable body of a self-supporting cable in which a cable body and a supporting wire provided for the cable body are integrally covered with a cable jacket. A cable separating tool for tearing a cable jacket between a cable and a support wire, (A) having a first sharp portion that can be inserted into the cable jacket between the cable body and the support wire, and A cable body holding member having a first holding portion that holds the cable body continuously with the first sharp portion, and (B) a second sharp portion that can be inserted into the cable jacket between the cable body and the support wire. A supporting wire holding member having a second holding portion that has a second holding portion that holds the supporting wire continuously with the second sharp portion;
The spring means is provided between the cable body holding member and the support wire holding member so as to exert a force in a direction in which the holding portion and the second holding portion are separated from each other.

Further, in the cable separating tool of the present invention, the cable body holding member and the support wire holding member may be rotatably connected to each other.

[0011]

The proximal ends of the cable body holding member and the support wire holding member of the separating tool according to the present invention are separated by the spring means when not held by the hand or the dedicated tool. Then, first against the spring means by hand or with a special tool,
When a force is applied in a direction in which the sharp portion and the second sharp portion are close to each other,
The first sharp portion and the second sharp portion can overlap each other and can be inserted into a cut (cable jacket) between the support wire of the self-supporting cable and the cable body. In this way, when the first and second sharpened portions are inserted into the cable jacket between the cable body and the support wire, the first and second holding portions of the cable body holding member and the support wire holding member are Since it is continuous with the first and second sharp portions, the cable body and the supporting wire are supported, respectively. After making such a state, when the force exerted on the cable body holding member and the supporting wire holding member is weakened by releasing a hand or a dedicated tool, the first sharp portion and the second sharp portion are formed by the spring means.
Since the sharp portion is separated from each other, the first and second holding portions continuous with these are separated from each other.
The cable main body held by this and the support wire are separated from each other, and the cable jacket is torn.

Further, if the cable body holding member and the support wire holding member are rotatably connected, the spring wire provided inside the detaching tool acts so that the support wire is not rotated. The holding member for cable and the holding member for cable body can be rotated in opposite directions to separate the support wire from the cable body.

[0013]

First, the structure of a cable separating tool according to an embodiment of the present invention will be described.

FIG. 1 is a side view of a cable separating tool according to an embodiment of the present invention, and FIG. 2 is a front view of the cable separating tool. In the following description, the same elements will be denoted by the same reference numerals, and
The terms "top" and "bottom" are based on the top and bottom of FIG.

This separating tool separates the cable body holding member 100 for holding the cable body 700, the supporting wire holding member 200 for holding the supporting wire 800, and the cable body 700 and the supporting wire 800 when the cable is separated. And a compression spring (spring means) 300 for applying a force.

The tip of the cable body holding member 100 is tapered, and the cable body 700 and the support wire 8 are provided.
The first sharp portion 100a which can be inserted through the cable jacket between the first sharp portion 100a and the outer sheath 00 is formed. Further, a projection piece 100b is integrally formed on the lower surface of the cable body holding member 100, and the projection piece 100b opens toward the tip of the cable body holding member 100.
The groove 100b is formed. The U-shaped groove 100b has a size and shape into which the cable body can be fitted, and functions as a first holding portion 100b that holds the cable body 700 when the cable body 700 is separated from the support wire 800. Since the first holding portion 100b is continuous with the first sharp portion 100a, the first sharp portion 100a is inserted into the cable jacket between the cable body 700 and the support wire 800, and the cable body holding member 100 is pushed. If so, the cable body 700
Is held by the first holding portion 100b as it is.

Similarly, the supporting wire holding member 200 has at its tip a second sharp portion 200a which can be inserted into the cable jacket between the cable body 700 and the supporting wire 800. In addition, on the upper surface of the supporting wire holding member 200, similarly to the cable body holding member 100, the protruding piece 2
00b is integrally formed. This protruding piece 200b
The U-shaped groove 200b formed by the second sharp portion 200a
And functions as a second holding portion 200b for holding the support wire 800.

In this embodiment, cable body holding members 100 of the same shape are arranged on the left and right sides of the supporting wire holding member 200. Cable body holding member 10
0 and the supporting wire holding member 200 are the protrusion pieces 100b, 2
The pins 500 are rotatably connected to each other at appropriate positions closer to the base end side than 00b.

A pair of left and right cable body holding members 100
The base end of is rotatably connected to one end of the plate-shaped first holding member 110 by one pin 510. The base end of the supporting wire holding member 200 is rotatably connected by a pin 520 to one end of a second holding member 210 having the same shape as the first holding member 110.

First gripping member 110 and second gripping member 210
A compression spring 300 is arranged between the and, with the axis of the compression spring 300 oriented vertically, and each end of the compression spring 300 is fixed to the corresponding gripping member 110, 210. These gripping members 1
In the unloaded state where no external force acts on 10, 210, that is, in the steady state of the separating device, the first gripping member 110 and the second gripping member 210 are widely separated by the presence of the compression spring 300, Therefore, as shown in FIG. 1, the distal ends of the cable body holding member 100 and the support wire holding member 200 are also widely separated. Also, arrow A in FIG.
As shown by, when the gripping members 110 and 210 are brought close to each other against the spring force of the compression spring 300, the holding member 10
0 and 200 rotate around the pin 500 in the direction of the arrow B, and finally, as shown in FIG. 3, the tips of the cable body holding member 100 and the supporting wire holding member 200 are substantially in a straight line. It is arranged to line up.

In this embodiment, the first gripping member 11
0 and the other end of the second gripping member 210 have one ends of the link members 410 and 420 respectively connected to the pins 530 and 540.
And the other ends of the link members 410 and 420 are also pivotally connected to each other by a pin to form the link mechanism 400. In this way, the link members 410, 420
To add the first and second gripping members 11
It is possible to approach or separate 0 and 210 in a state of being substantially parallel to each other.

Next, how to use the cable separating tool according to the embodiment of the present invention will be described.

In the steady state of the separating tool, as shown by the solid line in FIG. 1, the compression spring 300 acts to hold the first holding portion 100b of the cable body holding member 100 and the second holding portion of the supporting wire holding member 200. The part 200b and the part 200b are open. Tear the cable to remove the cable 7
00 and the support wire 800 are separated, first, the first gripping member 110 and the second gripping member 210 are gripped with a hand or a tool, and both gripping members 110, 2 are moved in the direction of arrow A in FIG.
The holding member 10 for the cable main body
0 and the tips of the supporting wire holding member 200, that is, the first sharp portion 100b and the second sharp portion 200b are aligned as shown in FIG. At this time, the protrusions 1 formed integrally on the upper surface of the first grip member 110 and the lower surface of the second grip member 210, respectively.
By using 10a and 210a, the gripping members 110 and 2
10 can be easily gripped.

Next, with the gripped / pressed state maintained, the first sharp portion 100a and the second sharp portion are provided at the cuts previously provided in the cable jacket between the support wire 800 of the self-supporting cable and the cable body. The part 200a is inserted, and the separating tool is pushed in until the cable body and the supporting wire 800 are held by the first holding part 100b and the second holding part 200b, respectively.

Thereafter, a hand or a tool is used to grip the gripping member 110,
When released from 210, the restoring force of the compression spring 300 causes the detaching tool to return to the steady state. As a result, FIG.
As indicated by the arrow C, the first holding part 100b and the second holding part 200b are separated from each other, and as a result, the first holding part 100b and the second holding part 200b are separated from each other.
The cable main body 700 and the support wire 800, which are respectively held by the holding portion 100b and the second holding portion 200b, are separated from each other, and the cable jacket is torn. Therefore, the holding member 100 for the cable body and the holding member 2 for the support wire after the detaching tool is released from the hand or the tool.
There is no work for rotating 00, and the support wire 80 can be easily
0 and the cable body 700 can be separated.

Although the preferred embodiments of the present invention have been described above in detail, it goes without saying that the present invention is not limited to the above embodiments. For example, in the above-described embodiment, the holding portions 100b and 200 formed on the holding members 100 and 200.
Although b has a U-groove shape, it suffices that the cable main body 700 or the supporting wire 800 can be held when the cable is separated, so that the shape, position, etc. can be variously changed. Further, in the above embodiment, the compression spring 300 is used as the spring means for separating the holding portions 100b and 200b of the holding members 100 and 200, but the holding members 100 and 200 are used.
A configuration may be adopted in which a torsion coil spring is arranged at the pin 500 coupling portion between them. In such a case, the gripping member 11
0 and 210 are not always necessary, and the holding members 100 and 20
You may make it hold | grip the base end of 0.

[0027]

As described above, according to the present invention, the cable jacket between the cable body and the supporting wire of the self-supporting cable, that is, the cut-out of the self-supporting cable is inserted while holding the separating tool. In addition, by releasing the grip, the separating tool returns to the steady state, so that the supporting wire and the cable body are separated from each other, so that the self-supporting cable can be separated easily, and the work can be performed safely and safely. Can be done quickly.

[Brief description of drawings]

FIG. 1 is a side view of a cable separating tool according to an embodiment of the present invention.

FIG. 2 is a plan view of a cable separating tool according to an embodiment of the present invention.

FIG. 3 is a side view showing a state in which force is applied to the cable separating tool shown in FIG.

FIG. 4 is an explanatory diagram showing a self-supporting cable.

FIG. 5 is a perspective view showing a state in which the self-supporting cable shown in FIG. 4 is cut and laid on a utility pole.

FIG. 6 is a side view of a conventional cable separation tool.

[Explanation of symbols]

100 ... Cable body holding member, 200 ... Support wire holding member, 300 ... Spring means, 400 ... Link mechanism.

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Tsutomu Watanabe 1 Taya-cho, Sakae-ku, Yokohama-shi, Kanagawa Sumitomo Electric Industries, Ltd. Yokohama Works (72) Inventor Hiroshi Nakanishi 1-6, Uchisai-cho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Taku Nakata 1-6, Uchiyuki-cho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Minoru Shiragata 1-1-6, Uchiyuki-cho, Chiyoda-ku, Tokyo No. Nihon Telegraph and Telephone Corp. (72) Inventor Toshiyuki Kodama No. 20 Toda, Kitagawara, Itami City, Hyogo Prefecture 2 Asahi Metal Seiko Co., Ltd.

Claims (2)

[Claims] 1. A self-supporting cable in which a cable main body and a support wire attached to the cable main body are integrally covered with a cable outer cover, and the cable outer cover is torn between the cable main body and the support wire. A cable separating tool, which has a first sharp portion that can be inserted into the cable jacket between the cable body and the support wire, and holds the cable body continuously with the first sharp portion. A holding member for a cable body having a first holding portion, a second sharp portion that can be inserted into the cable jacket between the cable body and the support wire, and the second sharp portion. A supporting wire holding member having a second holding portion that holds the supporting wire continuously, and the cable body holding member so as to exert a force in a direction in which the first holding portion and the second holding portion are separated from each other. A cable separating tool comprising: a holding member and a spring means provided between the supporting wire holding member. 2. The cable separating tool according to claim 1, wherein the cable body holding member and the supporting wire holding member are rotatably connected to each other.