JP2000201411A - Stringing method for spiral cable guiding rod for stringing cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stringing method capable of omitting work which utilizes a spatral work or elevated working car, and excellent in workability. SOLUTION: A spiral cable guiding rod 3A is provided around a support wire 2 strung between electric poles 1, 1'. A flexible feeding wire 5 with a weight 6 is pushed into the extremity of the guiding rod 3A. The spiral cable guiding rod 3A with the flexible feeding wire 5 is moved ahead along the support wire 2. Then, the extremity of a following spiral cable guiding rod B wound around the support wire 2 and the feeding wire 5 is connected to the trailing end of the guiding rod A. And, the flexible feeding wire 5 is further pushed to move the topmost guiding rod 3A ahead. The above operations repeatedly proceed until the cable is completely installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a helical wire which is wound around a support wire and hangs when the cable is laid along a support wire laid between utility poles, and serves as a guide member at the time of the cable pulling operation. The present invention relates to a method for erection of a cable guide rod.

[0002]

2. Description of the Related Art The above-mentioned spiral cable guide rod is known, for example, as disclosed in Japanese Patent Application Laid-Open No. 9-70117. It is wound around a wire (a so-called messenger wire or a support wire portion of a self-supporting cable) and is used as a guide material at the time of cable pulling work. This is done using a so-called underground ride or an aerial work vehicle that goes down.

[0003]

In any of the above-mentioned prior arts, in any case, the worker must move along the supporting lines and connect the spiral cable guide rods sequentially, and must bridge the utility poles between the utility poles. However, the workability is lacking, and the work becomes considerably complicated depending on the place.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and has been made with the object of providing an erection method excellent in workability by omitting work using a suspended vehicle or an aerial work vehicle. It is.

[0005]

Means for Solving the Problems The foremost spiral cable guide rod is wound around a support wire installed between utility poles and suspended, and the foremost spiral cable guide rod is penetrated and attached together with a weight. After pushing the stiff pushing wire and advancing the foremost spiral cable guide rod along the support line, the support wire and the rear end of the foremost spiral cable guide rod are provided. The operation of connecting the tip of the spiral cable guide rod of the next and subsequent stages to be wound around the pushing wire and suspended from them and the operation of advancing the foremost spiral cable guide rod by pushing the pushing wire are sequentially performed. The feature is to repeat.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an apparatus to which a method of erection of a spiral cable guide rod for cable erection according to the present invention is applied. FIG. 1 is a front view during erection work, and FIG. FIG.

In the figure, 1, 1 'is a utility pole, and 2 is a utility pole.
A support wire 3A, 3A and 3B are connected by a connecting piece 4 and a helical cable guide rod (hereinafter, referred to as a guide rod), 5 is a pushing wire, and 6 is a weight.

The support wire 2 constitutes a self-supporting cable 8 together with the cable body 7.
Although a new additional cable is suspended using the support wire 2 of the self-supporting cable 8, a so-called messenger wire (of the cable body 7) is used instead of the self-supporting cable 8 (support wire 2). The present invention may be applied using a support line that is not provided.

The guide rods 3A and 3B are formed by spirally forming a rod having a core made of a steel wire covered with a resin film in a predetermined length, and the self-supporting cable 8 and the pushing wire 5 to the additional cable. Is formed of a spiral body having an inner diameter that can be inserted at the same time.

The connecting piece 4 is formed of a resinous tube into which the ends of the guide rods 3A and 3B can be inserted. In short, the connecting piece 4 is essentially a pair of adjacent guide rods 3A and 3B or 3B and 3B.
What is necessary is just a structure which can connect B mutually.

The pushing wire 5 is made of a wire in which a core wire made of FRP resin is coated with a polyethylene resin. In short, if the wire is a flexible wire having stiffness, it is simply made of steel wire alone. It may be something. By the way, here, the flexible wire having a waist means that when the pushing wire is pushed from one telephone pole side to the other utility pole side and sent out, the pushing force is supported from an intermediate portion of the pushing wire. It means a linear body that is absorbed and transmitted even if there are some curved roads up to the tip of the pushing line moved along the line 2.

The weight 6 is formed by connecting the tip of the pushing wire 5 to the supporting wire 2.
As long as it functions to be positioned directly below the self-supporting cable 8, its shape and configuration are not limited, but in the embodiment, the supporting portion piece 6a for detachably inserting the tip of the pushing wire 5 is detachable.
A main body 6b made of iron is pivotably connected to the main body 6b.
The position can be corrected by swinging b.

On one side of the utility pole 1, the foremost guide rod 3A is elastically connected to the support wire 2 laid between the utility poles 1 and 1 'and the pushing wire 5 arranged parallel to the support wire 2. (While the first guide rod 3A is suspended by the support wire 2 by this winding, the distal end side of the pushing wire 5 is supported by the guide rod 3A). The distal end of the guide rod 3A and the distal end of the pushing wire 5 are connected by a connecting member 10, and a weight 6 is attached to the distal end of the pushing wire 5. Then, after connecting the tip of the next guide rod 3B to the rear end of the earliest guide rod 3A that has moved along the support wire 2 by the connecting piece 4, the guide rod 3B is connected to the support wire 2 and the pushing wire 5 When the pushing wire 5 is pressed while being wound around, the foremost guide rod 3A moves along the support wire 2, and then the guide rod 3B connected to the foremost guide rod 3A.
After the front end of the next guide rod 3B is connected to the rear end by the connection piece 4, the guide rod 3B is connected to the support wire 2 in the same manner as described above.
When the pushing wire 5 is pressed while being wound around the pushing wire 5, the foremost guide rod 3A and the like move along the support line.

Similarly, by pressing the pushing wire 5 while sequentially connecting the guide rods 3B, the guide rods 3A, 3B connected to each other are almost entirely covered by the support wire 2 between the utility poles 1 and 1 '. , ... are suspended.

[0015]

The present invention has the configuration described above,
There is no need for the worker to move along the support line, and accidents that are likely to occur during the movement can be avoided, and a helical cable guide rod erection method for a cable trolley with excellent workability can be provided.

[Brief description of the drawings]

FIG. 1 is a front view in the middle of installation work.

FIG. 2 is an enlarged view of a part of FIG.

[Explanation of symbols]

 1, 1 'telephone pole 2 support wire 3A, 3B spiral cable guide rod 4 connecting piece 5 pushing wire 6 weight

Continued on the front page (72) Inventor Mitsuomi Kawashima 1-12-20 Tenjin, Chuo-ku, Fukuoka City, Fukuoka Prefecture Inside Kyushu Communication Network Co., Ltd. (72) Ryo Nishizawa 1-6-9, Yakuin, Chuo-ku, Fukuoka City, Fukuoka Prefecture F-term in Iwabuchi Corporation Fukuoka branch (reference) 5G367 GA03 GB03 GC02 GC02 GC06

Claims (1)

[Claims] 1. A waist, which has a waist attached to a tip end of a foremost spiral cable guide rod wound around and suspended from a support wire provided between utility poles and penetrated by the foremost spiral cable guide rod together with a weight. After pushing the pushing wire and advancing the foremost spiral cable guide rod along the support line, at the rear end of the foremost spiral cable guide rod, to the support line and the pushing wire The operation of connecting the leading ends of the spiral cable guide rods of the next and subsequent stages to be wound and suspended on them and the operation of advancing the foremost spiral cable guide rod by pushing the pushing wire are sequentially repeated. A method of erection of a spiral cable guide rod for a cable overhead line.