JPS58326Y2 - Work vehicle for electrical work - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a work vehicle used for electrical work.

In electrical work, installing or replacing cables between utility poles, or installing transformers on utility poles requires equipment for working at high places, a crane, and a cable winch.

However, in the past, one vehicle was used for each function, such as an aerial work vehicle, a crane vehicle, and a winch vehicle, which resulted in extremely low vehicle utilization rates, and when performing work on the road. There were problems such as it becoming a hindrance to other traffic.

The present invention was developed in view of these circumstances, and the lower boom, in which the pivot portion of the boom is pivotally supported by a turntable located above the top surface of the operator's cab and is stored approximately horizontally, is used as a crane boom. A bendable aerial work device that has the function of the crane to be used is installed at the rear of the operator's cab, and when the bendable aerial work device is in the retracted state, the horizontal distance between the center of the reel and the rear end surface of the work platform of the aerial work device is By installing the cable winch at the rear of the bending-type aerial work equipment so that the vertical distance between the center of the reel and the bottom surface of the workbench is larger than the radius of the reel, the cable winch can be installed at the rear of the bending-type aerial work equipment so that The object of the present invention is to provide a work vehicle for electrical work that is capable of performing station work, crane work, and winch work, is small in size, has high functionality, and therefore has a high operating rate.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a working vehicle for electrical work according to the present invention.

A turntable 10 is provided on a frame 8 provided at the rear of a driver's cab 1 equipped with a personnel transport section, and the boom pivot of this turntable is provided above the top surface of the driver's cab and is rotated by a hydraulic motor. The system is structured in such a way that it

The lower boom 2 is pivotally attached 20 to the upper part of the turntable 10 and stored almost horizontally, and is raised and lowered by the expansion and contraction of a hydraulic cylinder 11 installed between the lower boom 2 and the turntable 10.

The upper boom 3 is pivotally attached 25 to the tip of the lower boom 2,
It bends and expands due to the expansion and contraction of the hydraulic cylinder 14 and the links 15 and 16.

A workbench 4 is pivotally attached to the tip of the upper boom 3 to constitute a bending and retractable high-place work device A.

A winch 12 is provided on the lower surface of the lower boom 2, a wire 19 is fed out through a sheave 18 attached to the tip of the lower boom 2, and a hanging hook 17 is attached to the tip of the wire 19.

In other words, the lower boom 2 is also used as a crane boom.

A cargo box 9 is provided at the rear of the frame 8, that is, at the rearmost part of the work vehicle, and a cable winch B is provided within this cargo box 9.

The cable winch B is configured such that a reel 6 is removably supported between support stands 5 fixedly installed in parallel, and the reel 6 is rotated by a hydraulic motor to wind up and pay out the cable. In the retracted state of the aerial work equipment, the horizontal distance between the center of the reel 6 and the rear end surface of the work platform 4 of the aerial work equipment is smaller than the radius of the reel 6, and the vertical distance between the center of the reel and the bottom surface of the work platform The distance is greater than the radius of the reel.

Reference numeral 7 denotes outriggers, two of which are fixedly installed on each side of the working vehicle, and are extended during work to maintain the stability of the working vehicle.

Next, the work performed by the above-mentioned electric work vehicle will be explained.

FIG. 1 shows the running position, and since the driver's cab 1 is equipped with a personnel transport section, it is possible to transport a large number of workers, and tools and the like can be loaded in the cargo box 9.

FIGS. 2 and 3 are diagrams showing working conditions.

During work, the outriggers 7 are extended, and when working at heights, a worker 26 rides on the work platform 4 and moves the work platform by rotating the turntable 10 and raising, lowering, and bending the lower boom 2 and upper boom 3. Move and work at heights.

When performing crane work, first open the upper boom 3 at a certain angle so that the work platform 4 does not become an obstacle to the crane work.

Crane work is then performed by turning the turntable 10, raising and lowering the lower boom 2, and hoisting and lowering the hanging hook 17 using the winch 12.

Cable winch B can be driven independently,
The reel 6 is attached and detached using the above-mentioned crane device as shown in FIG.

In addition, since the cable winch B and the aerial work device A can be used at the same time, as shown in Fig. 3, when installing or replacing cables 24 between utility poles 23,
Winding or feeding of the cable 24 and work on the utility pole 23 can be performed with one device.

As described above, according to the present invention, high-altitude work equipment, cranes,
Since a small electric work vehicle with the function of a cable winch can be obtained, not only the vehicle's mobility and operation rate are higher than ever before, but also the work on the road will not become an obstacle to other traffic. Since it is possible to perform two types of work at the same time, it has a great effect on increasing the efficiency and speed of work.

[Brief explanation of the drawing]

Figure 1 is a side view of the electrical work vehicle according to the present invention;
FIG. 3 is an explanatory diagram showing the working state. 1... Driver's cab, 2... Lower boom, 3
... Upper boom, 4 ... Workbench, 10
・・・・・・Turntable, 11.14・・・・・・
Hydraulic cylinder 12...Winch, 17...
... Hanging hook, 19 ... Wire, A.
・・・・・・Bending type aerial work device with crane function, B・・・・・・Ke・-Pull winch.

Claims (1)

[Scope of utility model registration request] A function of a crane that uses a lower boom 2 as a crane boom, which is installed at the rear of the operator's cab 1 and is pivotally supported by a turntable 10 whose pivot point is above the top surface of the operator's cab 1 and stored approximately horizontally. A bending-and-extendable high-altitude working device A having a rear part of the bendable-to-be-stretchable high-altitude working device A, and a line between the center of the reel 6 and the rear end surface of the workbench 4 of the high-altitude working device when the bending-and-stretchable high-altitude working device is in the retracted state. Electrical work characterized by comprising a cable winch B installed such that the horizontal distance is smaller than the radius of the reel 6 and the vertical distance between the center of the reel and the bottom surface of the workbench is larger than the radius of the reel. work vehicle.