JPH06351120A - Roller apparatus for laying cable - Google Patents

Abstract

PURPOSE:To easily attach an apparatus to an arbitrary place of a utility pole at the time of laying a wire and further to perform operations such as stripping and fixing process in a state where the wire is supported by a roller. CONSTITUTION:Because an L-shaped support frame 15 is adopted, the position for supporting a wire 18 can be caused to deviate laterally of the position B for stripping and fixing process operations. Also, when a chain 32 is used for a holder, an object can be easily fixed irrespective of the shape of the object and working properties are improved too.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for guiding an electric wire on a utility pole when extending an overhead distribution line, and for supporting the electric wire during a stripping process or a fixing process. The present invention relates to an electric wire drawing roller device.

[0002]

2. Description of the Related Art Overhead power distribution lines are suspended from utility poles arranged in advance at appropriate intervals, and branched if necessary. For the work of extending such an overhead distribution line, the following device for guiding the line on the utility pole is used. FIG. 2 shows a perspective view of a conventional wire drawing roller device. As shown in the figure, this device is composed of four rollers 1 arranged in a grid pattern, a bearing 2 for supporting these rollers to rotate freely, and this bearing 2.
The clamp body 3 and the opening / closing arm 4 and the tightening screw 5 are integrated with each other. The four rollers 1 form an electric wire guide hole 1A for allowing an electric wire to pass therethrough, and the clamp body 3 is fixed to an arm of a utility pole or the like. The opening / closing arm 4 opens in the direction of arrow 4A when fixing the clamp body 3 to the arm of the electric pole, and the tightening screw 5 tightens the arm of the electric pole to fix the clamp body 3 and the bearing 2.

FIG. 3 shows a side view of the main part of the electric pole. As shown in this figure, the utility pole 6 is provided with arms 7 in the horizontal direction, for example. Usually, about three insulators 8 for supporting and fixing the distribution line are attached thereto. When the electric wire is suspended here, the attachment position A is set at a portion between the insulators 8 of the armor 7, and the electric wire drawing roller device as shown in FIG. 2 is fixed.

[0004]

By the way, the above-described electric wire drawing roller device has conventionally had the following problems to be solved. FIG. 4 shows a side view of a main part showing another example of a commonly used electric pole. Utility pole 1 shown in this figure
A U-shaped arm 11 is attached to 0. Insulators that have three distribution lines lined up vertically and suspended here
Is fixed. When the electric wire is extended to the electric pole 10 having such a configuration, it is necessary to fix the above-mentioned electric wire extending roller device to the arm member 11. However, it is not always easy to fix the above device to an arbitrary position of the bent arm. Further, when the wire extension is completed, the wire is stripped and the fixing process is performed. At this time, if the electric wire is passed through the electric wire drawing roller device, the device will be an obstacle and the work will be difficult.
However, if the electric wire is removed from the wire drawing roller device, it is not easy to support the electric wire at an appropriate position.

The present invention has been made by paying attention to the above points, and when extending an electric wire, it can be easily attached to an arbitrary position of a utility pole, and the electric wire is peeled while being supported by rollers. It is an object of the present invention to provide an electric wire drawing roller device that can perform work such as fixing and fixing.

[0006]

The wire drawing roller device of the present invention comprises a support frame, a roller unit fixed to one end of the support frame, and a holder fixed to the other end of the support frame. The support frame includes an extension portion extending in an extension direction of the electric wire and an extension portion extending from the holder toward the electric wire, and the roller unit is formed by combining a plurality of rollers, and has a rolling surface on the electric wire. A wire guide hole is formed so as to surround the electric wire in a state in which the electric wire is directed, and the holder has a clamp that holds a structure in an extension path of the electric wire and fixes the support frame to the structure. It is what The holder may be configured to include a chain wound around a structure in the wire extending path and a clamp that applies tension to the chain to fix the support frame to the structure.

[0007]

Since this device employs a support frame bent in a V shape, the position for supporting the electric wire can be shifted laterally to the position for the stripping process and the fixing process. Also, if a chain is used for the holder, it can be easily fixed regardless of the shape of the object, and workability is also good.

[0008]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. 1A and 1B show an embodiment of an electric wire drawing roller device of the present invention. FIG. 1A is a plan view thereof, and FIG. This device comprises a roller unit 20 fixed to one end of a support frame 15 and a holder 30 fixed to the other end. The support frame 15 is fixed to the armrest 11 of the electric pole by a holder 30. Further, the support frame 15 is bent in a dogleg shape as seen in a plan view as shown in the drawing, and extends from the extension portion 15A of the electric wire 18 to be extended and the wire 18 to the wire 18 to extend. And a protruding portion 15B extending in the direction. The roller unit 20 is fastened and fixed to the projecting portion 15B with bolts 16.

As shown in FIG. 1B, the roller unit 20 has a structure in which three rollers 21 are arranged so as to come to each side of an equilateral triangle and are supported by a bearing body 22 and a bearing piece 23. is there. As shown in the figure, the bearing main body 22 is bent in a dogleg shape, and the bearing pieces 23 are fixed to both ends thereof. Each roller 21 is rotatably supported by the bearing body 22 and the bearing piece 23. The rollers 21 form the wire guide holes 13 through which the wires 18 pass.

As described above, since the roller 21 surrounds the electric wire 18 with the rolling surface of the electric wire 18 facing the electric wire 18, when the electric wire 18 is extended, it comes into contact with one of the rollers 21 and is smoothly fed in the extending direction. To be Since accessories of the electric wire 18 also pass through the electric wire guide hole 13, guide plates 24 and the like are attached and fixed to both surfaces of the bearing main body 22 in order to facilitate the passage. Further, the roller 21 sandwiched between the pair of bearing pieces 23 in the figure is configured to be opened and closed so that the electric wire can be freely attached to and detached from the device even in such a state.

FIG. 5 is an exploded perspective view for explaining such a roller opening / closing mechanism. As shown in the figure, the rotary shaft 21A of the roller 21 has a cutout 2 of the bearing piece 23.
In 3A, the arrow C is centered on the rotary shaft 19 as shown in the figure.
It is mounted to rotate in the direction of. On the other hand, the rotary shaft 21B of the roller 21 is received and fixed in a snap manner to a stopper 22A attached to a notch 23A of a bearing piece 23 arranged on the front side of the drawing. Therefore, the roller 21 shown in the drawing can be opened and closed in the direction of the arrow C, and the electric wire can be easily guided to the electric wire guide hole 13 shown in FIG. 1B.

The support frame 15 is fixed to the holder 30 shown in FIG. 1 with bolts 17. This holder 30 is a base 3 that is pressed against the arm pole 11 of a telephone pole.
1, a chain 32 having one end attached to a corner of the base 31, a male screw 33 having one end supported by a support shaft 34 provided on a side surface of the base 31, and a washer 35 fitted to the male screw. The thumbscrew 36 is screwed into the male screw 33. The washer 35 is fixed to the other end of the chain 32. In the holder 30 having the above-described structure, the base 31 is pressed against the arm pole 11 of the electric pole in the state as shown in FIG.
2 is wound around the arm pole 11 of the electric pole, the washer 35 is attached to the male screw 33, and the thumb screw 36 is rotated. As a result, the chain 32 is tightened, and the chain 32 and the base 31 are
Thus, the support frame 15 can be strongly fixed to the armrest 11.

The electric wire rolling roller device of the present invention having the above-mentioned structure supports the electric wire 18 in a state as shown in FIG. 1 (a) and assists the electric wire drawing work and the peeling process and fixing process. At this time, as shown in FIG. 1 (a), the support frame 15 has an extension 15 A extending in the extension direction of the electric wire 18, and further has an extension 15 B extending toward the electric wire 18. It is possible to support the peeling-processed or fixed-processed part B of 18 on the side of the electric pole in an open state for easy work. Therefore, after supporting the electric wire in the state as shown in FIG. 1 and guiding the electric wire during the wire drawing, the worker can perform the peeling process, the fixing process, etc. on the electric wire 18 in this state.

It should be noted that the holder 30 can hold various structures in the wire extending path and fix the support frame 15 to the structures. In particular, the support frame can be easily fixed even to the bent portion of the arm member 11 as shown in FIG. 4, for example. In addition, the shape of the support frame 15 can be freely selected in consideration of the length of the stripped or fixed portion of the distribution line, the optimum length from the armrest to the support portion of the wire, and the like. This makes it possible to easily create an optimum work environment.

FIG. 6 shows a modified example of the wire drawing roller device of the present invention, (a) is a front view and (b) is a plan view. In the example shown in this figure, a U-shaped low-voltage rack 41 is attached to the side surface of the electric pole 10, and an insulator 42 is fixed thereto. When the low-voltage rack 41 having such a special shape is used, the holder 43 may be configured to cover the end of the low-voltage rack 41 as shown in this figure. As shown in this figure (b), the holder 43 is provided with a notch 43C and is fitted into the low-voltage rack 41 so as to avoid the support pins 42A of the insulator 42. A support frame 44 is attached to the side surface of the holder 43, and has a structure in which an extension portion 44A and an extension portion 44B are provided as in the embodiment of FIG.

In the wire drawing roller device of the present invention, by using the support frame 44 and the like having the above-mentioned structure, the position of the roller unit 20 is indicated by the arrow 45 as shown in FIG. 6B, for example. It becomes easy to move in the direction. Of course, if the support frame 44 can be fixed to the side surface of the holder 43 shown in the lower side of the figure, it is also possible to select four types of support positions for the roller unit 20. The example shown in FIG. 1 is also the same, and the roller unit 20 can be arranged at a position opposite to the example shown in FIG.

The present invention is not limited to the above embodiments. The roller unit having a three-sided structure as described above has an effect that weight saving is easy and handling is easy, but it may be a guide in which other suitable number of rollers are combined. Further, the holder may be configured by a chain wound around the structure and a clamp that applies tension to both ends of the chain to fix the support frame to the structure, or may be configured in the above-described cassette shape. However, various other configurations may be used. In addition, the length of the extension portion and the extension portion of the support frame can be freely selected, and the support frame may have a structure in which a part of the support frame is integrated with the holder.

[0018]

The wire-rolling roller device of the present invention described above can support the wire at an arbitrary position on the utility pole and assist the wire spreading, and further pass the wire through the wire guide hole. Since it is possible to perform a peeling process, a fixing process, and the like while being supported, it is possible to improve the efficiency of this type of construction.

[0019]

[Brief description of drawings]

FIG. 1 shows an embodiment of an electric wire drawing roller device of the present invention,
(A) is the top view, (b) is a front view.

FIG. 2 is a perspective view of a conventional wire drawing roller device.

FIG. 3 is a side view of a main portion of a telephone pole.

FIG. 4 is a side view of the main part of another utility pole.

FIG. 5 is an exploded perspective view of a main part of the wire drawing roller device of the present invention.

FIG. 6 shows a modified example of the wire drawing roller device of the present invention,
(A) is the side view, (b) is the top view.

[Explanation of symbols]

 15 Support Frame 15A Extension 15B Overhang 20 Roller Unit 21 Roller 22 Bearing Main Body 23 Bearing Piece 30 Holder 32 Chain

Claims (2)

[Claims] 1. A support frame, a roller unit fixed to one end of the support frame, and a holder fixed to the other end of the support frame, wherein the support frame extends in the wire extension direction. And a protruding portion extending from the holder toward the electric wire, the roller unit is formed by combining a plurality of rollers, and surrounds the electric wire with a rolling surface facing the electric wire to form a wire guide hole. Wherein the holder has a clamp for gripping a structure in the extension path of the electric wire and fixing the support frame to the structure. 2. The holder comprises a chain wound around a structure in an extension path of an electric wire, and a clamp for applying a tension to the chain to fix the support frame to the structure. Item 1. The wire drawing roller device according to Item 1.