JPH0428172Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field The present invention relates to a arm support device used in the work of rebuilding utility poles, etc., and is particularly used in the work of rebuilding utility poles to their original positions.

(2) Conventional technology In order to efficiently rebuild utility poles without replacing the electric wires, conventionally the electric wires and armatures were removed from the utility pole to be rebuilt, as described in Japanese Patent Publication No. 7353/1983. Attach a temporary arm to an aerial work vehicle, etc., rebuild the utility pole with the electric wire supported by the temporary arm, attach a cross arm to the rebuilt utility pole, and attach the electric wire supported by the temporary arm to the arm. I was gone.

(3) Problems that the invention aims to solve However, since the temporary arm supports the electric wire, when rebuilding a utility pole, it is necessary to remove the wire from the arm and reattach it, which is inefficient. There was a problem.

(4) Means for Solving the Problems In order to solve the above problems, the present invention has developed an arm that is attached to a horizontal beam provided approximately horizontally at the tip of the boom of a crane vehicle, etc., and has an electric wire attached to it. In the arm support device for removably supporting gold, the arm is attached and detached between a telescoping arm attached to the horizontal beam, a sliding support mounted on the tip of the telescoping arm, and the support. The device is equipped with a support bracket that can be freely clamped and a support device consisting of a support bracket.

(5) Effect When rebuilding a utility pole with the above configuration, the arm support device is inserted between the wires, the horizontal beam is positioned approximately parallel to the arm of the utility pole, and the telescopic arm is extended to support it. Position the cross arm between the bracket and the support, slide the support closer to the support bracket, sandwich the cross arm between the support bracket and the support, and in this state rebuild the utility pole. After installing the cross arm on the new utility pole, slide the support away from the support bracket to release the cross arm, reduce the telescoping arm, and move the arm support from between the wires. keep away.

(6) Examples Examples of the present invention will be described below with reference to the drawings.

As shown in Figures 1 and 2, it is attached to the tip of the boom of a crane vehicle, etc., so that it can swing freely in a vertical plane, and it is attached almost horizontally to the side of a frame 1 that can freely rotate with the vertical axis suspended. The arm support device A, which is attached to the horizontal beam 2 and covered with an electrically insulating material, is attached to the outer arm 5 by an outer arm 5 and a built-in telescopic cylinder 7 that is slidably fitted into the outer arm 5. A telescoping arm 4 consisting of a telescoping inner arm 6 serves as a horizontal beam 2.
The inner arm 6 is removably attached to the inner arm 6 with a pin 3, and a support device 8 is attached to the tip of the inner arm 6. The support device 8 has a cylinder 11 mounted parallel to the support base 9 on a bracket 10 attached to the upper surface of the rear end of a support base 9 attached to the tip of the inner arm 6, and supports the cylinder 11 at the tip of the cylinder 11 as the cylinder 11 expands and contracts. The support 12 is pivotally supported to be able to swing from side to side so as to slide on the base 9, and the support 12 is mounted on the upper surface of the tip of the support base 9.
A support bracket 13 is pivotally supported in a position parallel to and facing the support 12 so as to be swingable from side to side so as to removably hold the cross arm 14 between the support bracket 12 and the support bracket 12.

With the above configuration, when rebuilding a utility pole, as shown in FIG. positioned approximately parallel,
The telescopic cylinder 7 is extended to extend the inner arm 6 from the outer arm 5, and the support bracket 13 is extended.
and the support bracket 12, extend the cylinder 11, bring the support 12 pivotally supported at the tip of the cylinder 11 closer to the support bracket 13, and then When the armrest 14 is clamped between them, the extension of the cylinder 11 is stopped, thereby holding the support 12 in a position where the armature 14 is clamped. Next, remove the fixture 16 that fixes the arm 14 to the utility pole 15, separate the arm 15 from the arm 14, and pull out the utility pole 15 while the arm 14 is supported by the arm support device A, and place it in the same position. A new utility pole will be erected. The cross arm 14 is fixed to a new utility pole, the cylinder 11 is contracted to separate the support 12 from the support bracket 13, the clamp of the cross arm 14 is released, and the telescopic cylinder 7 is contracted to move the inner arm 6 to the outer arm 5. Once the utility poles are inserted into the interior, the rebuilding work for the utility poles will be completed.

(7) Effects of the invention As described above, according to the invention, it is possible to rebuild a utility pole with the electric wire attached to the arm, and the arm is attached to the front or opposite side of the pole. The present invention is particularly effective in improving the work efficiency of utility pole rebuilding work, as the support arm can also be supported.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a detailed view of the main parts, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is an explanatory diagram of the operation. 2...Horizontal beam, 4...Telescopic arm, 8...
Support device, 12... Support tool, 13... Support bracket, 14... Bracelet, A... Bracelet support device.

Claims (1)

[Scope of utility model registration request] In a arm support device that is attached to a horizontal beam provided substantially horizontally at the tip of a boom of a crane vehicle, etc., and removably supports a arm arm to which electric wires are attached,
A support device comprising a telescoping arm attached to the horizontal beam, a sliding support that is attached to the tip of the telescoping arm, and a support bracket that removably holds an armrest between the support and the support. An arm support device characterized by comprising: