JPH0986893A - Work stand of high place working truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exhaust a rain water gathered in a working stand without tilting the work stand by discharging a liquid gathered in the work stand by a hose connected the suction port of a pump to the bottom of the work stand after operating the pump, on the work stand arranged on the boom tip of the high place working truck. SOLUTION: The work stand of a high place work car is composed of a bucket 51 formed in a rectangular solid or cylinder shape and linear 52 having a proper strength hard to tear due to that a worker M works by standing and with a material excellent in non-conductance. In the liner 52, a hose 54 is built in and formed and extended from the bottom opening 54a of the liner 52 upto the outside of the bucket 51 and connected to the suction port of a hand pump 53 installed near the vertical post 16 in a post cover. A hose 55 is arranged from the discharge port of this hand pump 53 so as to keep away a discharged rain water W from the high place work car. By such constitution, the hand pump 53 is operated by the worker M properly and gathered rain water W is discharged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workbench arranged at the tip of a boom of an aerial work vehicle.

[0002]

2. Description of the Related Art Generally, an aerial work vehicle is provided with a boom which can be freely swiveled, raised and retracted, extended and retracted, etc. on a freely movable vehicle body, and a work platform is provided at the tip of the boom. In the work using such an aerial work vehicle, after the boom is operated and the workbench is moved to an arbitrary height position, a worker on the workbench performs a desired work.

[0003] An aerial work vehicle is generally used for power distribution work, etc., and a workbench is arranged near a power transmission line in a live line state (high voltage state) or between a plurality of power transmission lines to perform work. There are times when you are told. In addition to this, work may be performed even in the case of rain, and ensuring safety of workers against electric shock is an important issue. Therefore, an aerial work vehicle is generally designed so that the work table and the ground are insulated from each other. For this insulation method, one of the members constituting the boom is formed of a non-conductive material, or the workbench is coated with insulation, and the like.

[0004]

By the way, there is a problem that rainwater collects in the workbench and the workability is impaired in case of rain. Conventionally, as a means for removing the rainwater accumulated in the workbench, the work is interrupted and the workbench is tilted to drain the rainwater. However, the method of inclining the workbench and discharging the rainwater is not preferable in terms of workability.

The present invention has been made in view of the above problems, and is capable of discharging rainwater accumulated without tilting the workbench, and draining the workbench which does not threaten the insulation of the aerial work vehicle. It is intended to provide a means.

[0006]

In order to achieve the above-mentioned object, a workbench of an aerial work vehicle according to the present invention comprises a workbench arranged at a tip of a boom of the aerial workblower, and an inside of the workbench. And a hose that connects the suction port of the pump and the bottom of the work table.

[0007]

According to the workbench of an aerial work vehicle of the present invention, when the pump is appropriately operated, rainwater or the like accumulated in the workbench can be operated without impairing the workability of the aerial work vehicle. It is discharged to the outside of the table. Furthermore, it is desirable that the drainage port of the pump is provided at a position away from the workbench, and by so configuring, it is possible to drip rainwater etc. onto the components of the work platform, boom, etc. Drainage is possible without As a result, the insulation between the inside of the workbench on which the worker boards and the ground is secured.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an aerial work vehicle 10 according to the present invention. This aerial work vehicle 10 is roughly
It consists of a car body, a boom, and a workbench. The vehicle body portion is mainly composed of a self-propelled vehicle body 11 having drive wheels, and a jack device 1 which extends and extends to the front, rear, left and right of the vehicle body 11 to stably support the vehicle body 11 during work.
9 are provided. Further, on the vehicle body 11, there is provided a swivel base 12 which is rotatable by a built-in motor (not shown). A boom 30 is pivotally supported on the upper surface of the swivel base 12,
A hoisting cylinder 14 is attached to the boom 30 from the swivel base 12. The hoisting cylinder 14 allows the boom 30 to freely hoist. Further, the boom 30 includes a base end boom member 31, an intermediate boom member 32, and a tip end boom member 33.
The telescopic cylinder (not shown) arranged in the boom allows the telescopic operation.

A vertical post 16 is pivotally supported on the tip portion of the tip boom member 33. The vertical post 16 is irrelevant to the boom 30 in an up-and-down state.
Always kept vertical by 5. A workbench 50 as one embodiment of the present invention is attached to the vertical post 16 via an arm 18 so as to be horizontally rotatable. Vertical post 16
Is always kept vertical, the bottom of the workbench 50 is always kept horizontal with respect to the vehicle body 11, and the worker M can comfortably perform desired work. Further, in order to avoid contact between the vertical post 16 and the arm 18 and the worker M, a post cover 17 is provided, and the vertical post 16 and the arm 18 are provided.
Is shielded. At the time of working at a high place using the aerial work vehicle 10, a worker who moves the workbench 50 to a desired height position by swinging, hoisting and extending the boom 30 and boarding the workbench 50. M will perform the desired work.

FIG. 2 is a side sectional view of the workbench 50 of the aerial work vehicle 10. The post cover 17 is removed to clearly show the structure of this embodiment. The workbench 50 includes a bucket 51 on which the worker M is placed, a liner 52 laid so as to cover the entire inner surface of the bucket 51, and a bucket 5.
It comprises a bucket 51 and an integrally formed arm 18 for pivotally supporting 1 on the vertical post 16. In the present embodiment, the bucket 51 and the liner 52 correspond to the "work table" described in the claims.

The bucket 51 is a rectangular parallelepiped,
Alternatively, it is formed in a cylindrical shape. Further, the liner 52 is formed of a resin such as polyethylene which has an appropriate strength and is hard to break because the worker M stands on the liner 52 to perform the work. This insulating liner 52
As a result, the worker M who is on the workbench 50 is always insulated from the aerial work vehicle 10 and the ground G, and the safety against an electric shock accident is improved.

Further, a hose 54 is embedded and formed in the liner 52. The hose 54 extends from the bottom opening 54a of the liner 52 to the outside of the bucket 51 and is provided in the post cover 17 near the vertical post 16. It is tied to the suction port of the pump 53. This hand pump 5
A hose 55 is arranged so that the rainwater W to be discharged from the discharge port of 3 can be kept away from the aerial work vehicle.

Since the liner 52 is provided with the hand pump 53 via the hoses 54 and 55 as described above, the operator M appropriately operates the hand pump 53 to discharge the rainwater W accumulated in the liner 52. It will be. Unlike the conventional case, it is not necessary to suspend the work and incline the workbench to discharge the rainwater accumulated in the workbench, thereby improving workability in high-altitude work.

In the workbench 50 of the present invention, the rainwater W collected in the insulated liner 52 is discharged without coming into contact with the bucket 51 of the workbench 50 or the boom members 31, 32 and 33. The insulation between the workbench 50 of the aerial work vehicle 10 and the ground G is not impaired at all. This is a further improvement in safety against electric shock accidents.

Although the above embodiment is configured to have the hand pump 53, an electric pump may be provided instead of the hand pump 53 to automatically drain water. In addition, the liner 52 and the pump 53 may be easily attached and detached by including the hoses 54 and 55, and the liner pump may be used as a portable safety device only in rainy weather. It is obvious that the present invention is not limited to these, and that further improvements, improvements, modifications, etc. can be made within the scope of the claims of the present invention.

[0016]

As described above, according to the workbench of the aerial work vehicle of the present invention, rainwater and the like accumulated in the workbench can be discharged by appropriately operating the pump. It is not necessary to suspend the work and tilt the workbench to discharge the rainwater accumulated in the workbench, which improves workability in high-altitude work.

Further, by discharging the drainage from the discharge port of the pump through the hose, it is possible to drain the drainage away from the work platform, workbench, boom, etc. at a high place, which may occur when draining from the workbench. This eliminates the concern that the insulation performance of the aerial work vehicle is deteriorated, that is, the insulation performance is impaired because the streams of rainwater traveling along the aerial work vehicle join together.
Rainwater collected in the workbench is discharged to the external environment without dripping on the workbench, boom members, and other components of the aerial work vehicle, so the insulation between the workbench and the ground is not impaired. Not at all. As a result, the safety against an electric shock accident is further improved.

[Brief description of drawings]

FIG. 1 is an overall side view of an aerial work vehicle provided with a workbench of the present invention.

FIG. 2 is a side sectional view of a workbench of an aerial work vehicle according to the present invention with the post cover 17 removed.

[Explanation of symbols]

 10 High-altitude work vehicle 11 Vehicle body 12 Swivel table 16 Vertical post 17 Post cover 18 Arm 30 Boom 50 Work table 51 Bucket 52 Liner 53 Hand pump 54, 55 Hose

Claims (1)

[Claims] 1. A work platform for mounting a worker on the tip of a boom of an aerial work vehicle, a pump for discharging liquid collected in the work platform to the outside, a suction port of the pump, and the pump. A workbench of an aerial work vehicle, comprising a hose connected to the bottom of the workbench.