JPH087768Y2 - Temporary armor device for supporting overhead lines - Google Patents

Description

[Detailed Description of Device] a. Purpose of the Invention (Industrial field of application) The present invention relates to an overhead wire supporting temporary armrest device for supporting an overhead wire in place of a wire attached to a utility pole during electrical work.

(Prior Art) For example, as shown in FIG. 2, in a work of exchanging arms attached to a utility pole and supporting an electric wire, a temporary armrest attached to a tip of a boom 52 of an aerial work vehicle 51. By 53, electric wire 55 (often a live wire) removed from arm 54a of telephone pole 54 is supported instead of arm 54a. A plurality of electric wire holders 56 for holding the electric wires 55 are attached to the temporary armrests 53 via insulators 57, and a plurality of electric wires 55 stretched in parallel and close to each other are temporarily attached. It can be supported. Such a arm brace 53
At the mounting part to the tip of the boom 52, by sliding in a direction perpendicular to the direction in which the electric wire 55 is stretched,
The plurality of electric wires 55 supported by the provisional armrests 53 may be moved away from the armpiece 54a so as not to interfere with the work, or may be drawn to the armpiece 54a to be attached to the replaced armpiece 54a. it can.

(Problems to be Solved by the Invention) However, if the number of workers is one, the work of attaching and detaching the electric wires 55 to and from the armor 54a is performed one by one. For this reason, when a plurality of electric wires are arranged close to each other as described above, an operator may accidentally bring a part of his or her body into contact with another electric wire when attaching or detaching one electric wire. There is a high possibility that it will end up.

There is also a problem that workability deteriorates because the work is performed while paying attention to avoiding contact with other electric wires.

In view of the above problems, the present invention provides a provisional armrest device for supporting an overhead wire that allows each of the temporarily supported electric wires to be independently moved away from or near the armrest of the utility pole. Has an aim.

B. Configuration of the Invention (Means for Solving the Problems) In order to achieve the above-mentioned object, in the present invention, a plurality of wire holders are attached to a provisional arm via holder moving means,
The temporary armrest is supported on the operator board. Then, the electric wire holder attached to the holder moving means, at a position facing each of the plurality of electric wires stretched in parallel,
By the expansion / contraction operation of the moving means, the moving means is configured to be independently movable in a direction substantially perpendicular to a plane passing through the plurality of electric wires.

(Operation) In such a provisional armrest device, for example, after a plurality of electric wires supported by the electric pole are attached to the electric wire holder, each time the electric wire is removed from the electric pole armpiece, the electric wire holder is The attached holder moving means is operated to move the electric wire together with the electric wire holder in a direction in which the electric wire is moved away from other electric wires and the armrest, that is, in a direction substantially perpendicular to a plane including a plurality of electric wires, Secure a space for the next work of attaching and detaching electric wires.

(Example) Hereinafter, a temporary overhead wire support device according to the present invention will be described with reference to the drawings.

A post member 2 is attached to the tip of a boom 1 which can be freely raised and lowered and which is attached to an aerial work vehicle (see Fig. 2). The post member 2 is always held vertically by the expansion and contraction operation of the leveling cylinder (not shown) mounted inside the tip of the boom 1 in response to the hoisting operation of the boom 1. On the side of the post member 2, a bucket 3 for mounting an operator, which is freely pivotable around the post member 2, is attached. A winch 4 is attached to the upper portion of the post member 2. The winch 4 is for raising the distribution electric machine material or the like to the side of the bucket 3 or lowering it to the ground. When the winch 4 is used, an arm (not shown) is attached to the winch bracket 4a, and the wire and hook wound around the winch are hung through the tip of the arm. However, in the figure, the temporary armrest device 10 is attached to the winch bracket 4a.
The base end of the temporary armrest 11 is attached.

The temporary armrest device 10 includes the temporary armrest 11, three four-sided rollers (electric wire holders) 12, 13, 14 and three telescopic cylinders (holder moving means) 22, 23, 24. ing.

The temporary armrest 11 is a T-shaped member including an arm portion 11a and a support portion 11b. The support portion 11b of the provisional armrest 11 includes three electric wires 32, 33 on which the arm portions 11a are stretched in parallel in the vertical direction.
A base end portion of the winch bracket 4a is attached to the winch bracket 4a so as to face the vertical direction along the line 34.

On the arm portion 11a, the telescopic cylinders 22, 23, 24 are arranged so as to face the respective electric wires 32, 33, 34 at right angles to the stretching direction of the electric wires 32, 33, 34, respectively. ing. These telescopic cylinders 22, 23, 24 can independently extend and retract the piston rods 22a, 23a, 24a according to the operation of the operator on the bucket 3.
Each telescopic cylinder 22, 23, 24 is movable along the arm portion 11a of the temporary armrest 11 depending on the width between the electric wires 32, 33, 34.

At the tips of these piston rods 22a, 23a, 24a, 4
Face rollers 12, 13, 14 are mounted respectively. The four-sided rollers 12, 13, 14 are composed of four rollers arranged in a cross beam shape and slidably hold the electric wires 32, 33, 34 in the cross beam portion. In addition, the electric wire to the above-mentioned girder part
The attachment / detachment of 32, 33, 34 is performed by opening / closing one of the four rollers.

Using the provisional armrest device 10 having such a configuration, the armor of the utility pole 44
When replacing 44a, for example, first, wire 3
Wires are attached to the four-sided rollers 12, 13, and 14 at the sides of the wire with the wires 33, 34 attached to the arm 44a.
Hold 32, 33, 34. Next, each time the wires 32, 33, 34 are removed one by one from the armband 44a of the utility pole 44, the telescopic cylinder 2
The extension operation of 2, 23, 24 moves the four-sided rollers 12, 13, 14 in the direction B perpendicular to the wire tension direction A, and separates the removed wires 32, 33, 34 from the arm 44a. By
The operator can remove the next wire without interfering with the removed wire.

Also, the electric wires 32, 33, which are temporarily supported by the temporary arm device 10.
When attaching 34 to the armature 44a of the utility pole 44, the telescopic cylinders 22, 23, 24 are shortened one by one from a position distant from the armrest 44a, and the wires 32, 33, 34 are each armed individually. By pulling it up to the position of 44a, it is possible to perform the mounting work without interfering with the electric wire that is temporarily supported by the temporary arm device 10.

In addition, in this example, the temporary armrest device 10 in the vertically placed state in which the arm portion 11a is stripped in the vertical direction has been described. Electric wire 3 above the bucket 3
It is also possible to move 2, 33, and 34 in a vertical direction, that is, in a direction substantially perpendicular to a plane including a plurality of stretched electric wires.

C. Effect of the Invention As described above, when the provisional armrest device of the present invention is used, it is possible to move the wires stretched in parallel one by one from the armrest of the utility pole, or to draw the electric wire to the armrest. It is possible to secure a sufficient space required for. Therefore, it is possible to improve the efficiency of the above work and prevent the electric wire from coming into contact with the wire after being detached from the arm or before being attached to the arm, thereby improving the work safety.

[Brief description of drawings]

FIG. 1 is a perspective view showing a temporary wire supporting temporary armrest device according to the present invention, and FIG. 2 is a perspective view of a conventional overhead wire supporting temporary armrest device and an aerial work vehicle including the same. 1,52 ...... Boom 3,58 …… Bucket 11,53 …… Temporary armwork 12,13,14 …… Four-side roller 22,23,24 …… Extensible cylinder 32,33,34,55 …… Wire 44 , 54 …… utility pole 44a, 54a …… arm

Front page continuation (72) Creator Fujimoto Mineyuki 10-1515 Yamashita, Ryoke, Ageo-shi, Saitama Prefecture Aichi Vehicle Co., Ltd.Ageo Plant (72) Kenichi Shimada 10-1052 Yamashita, Ageo-shi, Saitama Prefecture 10 Aichi Vehicle Co., Ltd. Ageo Plant (72) Inventor, Yasuhiro Katayama 10-2115 Yamashita 1152 Ryoke, Ageo City, Saitama Prefecture Aichi Vehicle Co., Ltd. Ageo Plant (56) Reference JP-A-2-307309 (JP, A) Sho 62-74408 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A temporary wire supporting device for supporting a plurality of electric wires stretched in parallel in place of a arm attached to a utility pole, the device being attached to the tip of a boom of an aerial work vehicle or the like. An operator boarding platform, a provisional arm attached to the mounting platform and held at a position facing the plurality of electric wires, and supported by the provisional armrest at a position facing each of the plurality of electric wires, A plurality of moving means that can be independently expanded and contracted in a direction substantially perpendicular to a plane passing through the electric wire, and are attached to each of these moving means, and can be moved in the expansion and contraction direction according to the expansion and contraction operation of the moving means. And a plurality of electric wire holders capable of holding the plurality of electric wires facing each other, respectively.