JP2004297911A - Guide for laying helical cable hanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide capable of making a helical cable hanger have resistance to separation from a supporting line in laying the hanger along the supporting line. <P>SOLUTION: A bent guide rod of which the middle portion is bent is protrudingly provided on the front end of the body of the guide A, equipped with a mounting means mounted detachably on the front end of the helical cable hanger 3. A front end 9 of the guide rod is disposed on the helical outside of the helical cable hanger. The cable hanger is wound around the supporting line or a self-supporting cable, while the cable hanger is being twisted to the self-supporting able is provided between electric poles. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
[Industrial applications]
The present invention relates to a helical cable hanger used for hanging a helical cable hanger in advance on a support wire (here, a so-called messenger wire or a self-supporting cable) when the cable is hung on the support wire. The present invention relates to a leading tool for hanging a support wire.
[0002]
[Prior art]
In order to suspend the helical cable hanger on the support wire, winding work on the support wire, connection work between the cable hangers, and extrusion work along the support wire are performed in succession. A leading device is attached to the tip of the hanger (state-of-the-art) so that the presence of the leading device allows smooth movement along the support line. As a leading tool, there is a leading part configured by a main body part which is fitted and attached to the leading end of a spiral cable hanger and a spiral (spiral) leading part provided at the leading end of the leading body (for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent No. 3203556 (page 3, FIG. 9)
[0004]
[Problems to be solved by the invention]
In the conventional example, a spiral lead is hung on a support wire to guide a spiral cable hanger so that the hanger does not come off from the support wire. The tip of the helical cable hanger (most advanced) may separate from the support line due to the catenary curve generated in the line, and complicated work such as handling with a high-altitude work vehicle is required when separating. .
[0005]
The present invention has been devised to provide a leading tool capable of avoiding as much as possible separation due to the presence of a caterina curve or a branch line generated in a support line.
[0006]
[Means for Solving the Problems]
A bent rod-shaped leading rod with an intermediate portion bent is protruded from the leading end surface of the leading tool provided with attachment means for detachably assembling the tip of the spiral cable hanger, and the leading end of the leading rod is formed in the spiral shape. The cable hanger is arranged outside the spiral shape.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of a guide device for erection of a spiral cable hanger according to the present invention, FIG. 1 is a front view of a state of being attached to a spiral cable hanger (hereinafter simply referred to as a hanger), and FIG. 3 is an explanatory view showing a use state, FIG. 4 is an enlarged front view of a main part of FIG. 3, and FIG. 5 is an enlarged front view showing another use state (relation with a self-supporting cable).
[0008]
In the drawing, A is a leading tool, and the leading tool A is a leading rod 2 having a bent rod-shaped leading rod 2 composed of a straight rod-shaped front part 2a and a straight rod-shaped rear part 2b on the distal end surface of the leading tool main body 1. It is configured so as to protrude, and is used by being detachably attached to the tip of the hanger 3 (the foremost) by the attaching means provided on the leading tool main body 1.
[0009]
The mounting means of the embodiment is provided with a receiving hole 4 having an opening at the rear end face of the leading tool body 1, and a fitting portion 6 branched into two branches of a male connector 5 provided at the tip of the hanger 3 in the receiving hole 4. Utilizing the elastic deformation, the engaging portion 6a of the fitting portion 6 is used as a side wall of the receiving hole 4 to be engaged with the window 7 provided in the leading body 1 so that the leading body 1 and the leading body 1 are connected to each other. Although the hangers 3 are assembled to each other (known), it is needless to say that the hangers 3 need not be limited to the configuration of the embodiment.
[0010]
In the case of the embodiment, a female connector provided with a receiving hole and a window for removably fitting the fitting portion 6 of the male connector 5 provided on the hanger 3 side like the leading tool main body 1 is used as the hanger 3. Is provided on the rear end side, so that the female connector according to the configuration of the other hanger is connected to the female connector, and the hangers are sequentially connected. Can be selectively assembled and connected to the female connector of the hanger.
[0011]
The leading rod 2 protruding from the leading end surface of the leading tool body 1 is formed by bending a rod-shaped metal rod into a bent rod shape. The tip end 2a is arranged at an angle with respect to the rear part 2b so that the spherical tip terminal 9 made of resin is disposed outside the helix of the hanger 3. (FIGS. 4 and 5).
[0012]
Thus, the hanger 3 to which the guide A is attached by the attaching means is wound around the messenger wire 21 or the self-supporting cable 22 near one power pole, and then the female hanger 3 is provided at the end of the hanger 3 at the forefront. A male connector provided at the tip of the next hanger is connected to the connector, wound around the messenger wire 21 or the self-supporting cable 22 while twisting the hanger, and sent out to the other pole. By repeating these operations, the hanger is supported by the support wire in a connected state, and is installed between utility poles.
[0013]
During this erection work, the leading tool A disposed at the tip of the foremost hanger 3 causes the leading rod 2 to rotate with a larger rotation path (circular) than the rotation path (circular) on the hanger 3 side by the twisting operation. ), The leading end of the leading rod 2 is positioned outside the helix outer diameter of the hanger, and draws a rotation locus larger than the hanger's rotation locus, thereby connecting the hanger to the support line, that is, the messenger wire 21 or Lead along self-supporting cable 22.
[0014]
The reason why the leading terminal 9 of the leading tool A is made spherical is that the leading terminal 9 is hardly caught on an article (for example, a branch fitting provided at an intermediate portion of the support wire) by the form, as shown in FIG. When the support wire is a self-supporting cable 22, the cable 22 has a spherical shape having a diameter larger than the diameter of the concave edge formed by the main body portion 22a, the support portion 22b, and the neck portion 22c. Can be reliably prevented. However, the tip terminal 9 does not necessarily have a shape other than a spherical shape.
[0015]
【The invention's effect】
According to the present invention, as described above, since the leading end of the leading rod is disposed outside the spiral outer diameter of the spiral cable hanger, the distal end draws a rotation path larger in diameter than the rotation path drawn by the spiral cable hanger. As a result, it is possible to provide a leading tool that is less likely to be separated from the support line due to the rotation operation, and is more likely to be separated from the support line in accordance with the catenary curve.
[Brief description of the drawings]
FIG. 1 is a front view of a state in which it is attached to a spiral cable hanger.
FIG. 2 is a plan view of FIG. 1;
FIG. 3 is an explanatory diagram showing a use state.
FIG. 4 is an enlarged front view of a main part of FIG. 3;
FIG. 5 is a front view showing another use state.
DESCRIPTION OF SYMBOLS 1 Leader body 2 Leader rod 3 Spiral cable hanger

Claims (1)

A bent rod-shaped leading rod with an intermediate portion bent is protruded from the leading end of the leading tool provided with attaching means for detachably attaching to the tip of the spiral cable hanger, and the leading end of the leading rod is connected to the spiral cable hanger. A helical cable hanger erection guide placed outside the hanger helix.

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