JPH036092Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field The present invention relates to a protective pipe insertion device for inserting protective pipes (so-called polyethylene pipes) into distribution lines using aerial work vehicles, and is particularly useful for work. This improves efficiency.

(2) Prior art In order to efficiently insert a protective tube, it is conventional to attach a protective tube mounting device to the work platform of an aerial work vehicle, as described in Japanese Utility Model Publication No. 58-28408. It is more well known.

(3) Problems to be solved by the invention However, in the conventional protection pipe insertion device, the arm or boom with the protection pipe insertion machine attached is attached to the workbench only when performing protection pipe insertion work, and When traveling, it was removed from the workbench in order to lower the overall height of the aerial work vehicle, so when moving from site to place to perform protective tube insertion work, it is necessary to attach the protective tube insertion machine to the workbench, There was a problem in that it required a lot of effort and time to remove it, reducing work efficiency.

(4) Means for solving the problem In order to solve the above problem, the present invention provides a dogleg-shaped bent arm on the work platform of an aerial work vehicle so that it can be raised and lowered, and the tip of this arm is A protective tube inserter is attached to the arm, and the base of this arm is tilted approximately horizontally, so that the protective tube inserter is housed inside the workbench.

(5) Effect When performing protective tube insertion work, raise the arm diagonally upward, connect the protective tube insertion machine attached to the tip of the arm to the electric wire, and perform the work while driving the aerial work vehicle. The machine lowers the arm until the base is almost horizontal, stores the protective tube insertion machine inside the workbench, and runs the machine.

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

As shown in FIG. 2, the aerial work vehicle has a turntable 3 mounted on a vehicle body 1 supported by outriggers 2.
The base end of a telescoping boom 4 is pivotally supported on the turntable 3, and the telescoping boom 4 is extended and contracted by a built-in telescoping device (not shown).
It is undulated by the undulation cylinder 5. At the tip of the telescopic boom 4, a workbench 7 equipped with a post 6 for attaching a lifting device, etc. is kept balanced by a balance maintaining device (not shown), and the post 6 has a dogleg shape with a downwardly bent tip. An arm 8 is attached, and a protective tube insertion machine A is provided at the tip of the arm 8.

As shown in Fig. 1, a dogleg-shaped arm 8 is attached to the post 6 by a bracket 9 so as to be able to rise and fall freely, and the protective tube insertion machine A inserts the protective tube by holding the collar of the protective tube. A protective tube delivery section 10 that sends out a protective tube, and a protective tube insertion section 11 that is attached to the electric wire 13 and pushes open the protective tube from the inside and inserts it into the electric wire 13.
The protective tube is connected by a guide 12 that guides the protective tube, and the protective tube sent out from the protective tube delivery section 10 slides along the guide 12 and is pushed open by the protective tube insertion section 11. It is inserted into the electric wire 13.

With the above configuration, when inserting a protective tube, the dogleg-shaped arm 8 is raised above the workbench 7 and attached to the tip of the arm 8, as shown in Figures 1 and 2. When the protective tube insertion part 11 of the protective tube insertion machine A is connected to the electric wire 13 and the protective tube is supplied to the protective tube insertion machine A, the protective tube is inserted into the electric wire 13 and the protective tube insertion work is not performed. Alternatively, when traveling the aerial work vehicle, remove the protective tube insertion part 11 of the protective tube insertion machine A from the electric wire 13,
Protective tube insertion section 11 and guide 12 are connected to protective tube delivery section 1
0, and rotate the arm 8 so that it is located above the workbench 7, so that the base side of the arm 8 is almost parallel to the upper surface of the workbench 7, as shown in FIG.
In other words, tilt the arm 8 until it becomes almost horizontal,
By storing the protective tube delivery unit 10 of the protective tube insertion machine A attached to the tip of the arm 8 inside the workbench 7 below the upper end of the workbench 7 and fixing the arm 8, the arm 8 and Store the protective tube insertion machine A.

Note that by making the arm 8 from an insulating material such as FRP, it is also possible to improve safety against electric shock accidents.

(7) Effects of the invention As described above, according to the invention, by swinging the arm, the protective tube insertion machine can be stored below the upper end of the workbench, and the aerial work vehicle can be moved. Therefore, the present invention is particularly effective in improving the work efficiency of protective tube insertion work that is performed while moving from site to site.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a detailed view of the main parts showing the working state, Fig. 2 is a side view showing the working state of the aerial work vehicle, and Fig. 3 is a detailed view of the main parts showing the storage state. It is a diagram. 6...Post, 7...Workbench, 8...Arm,
9... Bracket, A... Protective tube insertion machine, 10...
...Protection tube delivery section, 11...Protection tube insertion section, 12...
...Guide, 13...Electric wire.

Claims (1)

[Scope of utility model registration request] A dogleg-shaped bent arm is provided on the workbench of the aerial work vehicle so that it can be raised and lowered freely, a protective tube insertion machine is attached to the tip of this arm, and the protective tube is inserted by tilting the base of the arm approximately horizontally. A protective tube insertion device characterized in that a device is housed inside the workbench.