JP2579002Y2 - Aerial work vehicle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerial work vehicle that can be used in different work places.

[0002]

2. Description of the Related Art A conventional aerial work vehicle has a work platform with a lifting device installed on a truck bed. Then, a worker gets on the work table, ascends to a work position by an elevating device, and uses the worker to perform manual work.

There are various types of high-altitude work. However, when only manual work is required at a predetermined high altitude, there is no particular problem with a conventional high-altitude work vehicle.

[0004] However, there are some types of work at high places that require installation or replacement of heavy objects that cannot be raised or lowered only by the power of a worker. For example, work in the railroad track, overhead wire tension adjuster, movable pipe steady rest, lower bundle for movable steady rest,
In the installation or replacement work of the movable bracket, the curving lower bundle, the train line (overhead line), the compression head, etc., all handle heavy objects of 20 kg to 135 kg as an example.

[0005] Since conventional high-altitude work vehicles cannot be used for such high-altitude work that handles heavy objects, for example, when working on railroad tracks, bamboo ladders are used, and train lines or trusses are used. Hang a bamboo ladder on a beam, etc., one of the workers holds down the bamboo ladder, another worker climbs the bamboo ladder and lowers the rope from a truss beam etc., and attaches tools or equipment to one end of the rope Then, by pulling the other end of the rope on the ground, a tool or equipment is lifted to a required height, and a worker on a bamboo ladder uses the tool or mounts the equipment. Depending on the type of work, it is necessary to hang a plurality of bamboo ladders on a truss beam or the like, and depending on the weight of tools and equipment, it is necessary to use a plurality of ropes or semi-rope.

[0006]

As described above, conventionally,
All work such as installing and replacing heavy objects at high altitudes is performed by manual labor, which is heavy labor, involves danger, requires a large number of workers, and has low working efficiency. There was a problem that it became longer and labor costs were high.

[0007] In particular, high-altitude work on a railway line is mainly performed at night except for the operation time of the railway, and must be performed between the passage of the last train and the arrival of the first train. Failure to complete the work will have a significant effect on train operation.

The present invention has been made in view of the above points, and is intended to reduce the working time by eliminating heavy labor, danger, and improving the working time, which is particularly suitable for working at heights handling heavy objects. The purpose is to provide a work vehicle.

[0009]

In order to achieve the above object, an aerial work vehicle according to the present invention comprises a work platform with a lifting device provided on a truck bed, which is perpendicular to the traveling direction of the truck. A slider is mounted so as to be movable in the direction, and a winch is mounted on the slider. The slider comprises a support plate fixed to the lower end of the winch, and a guide member fixed to the upper surface of the worktable, for guiding the support plate movably in a direction perpendicular to the traveling direction of the track. And fixing means for fixing the support plate to the guide member at a position after the movement. Further, the aerial work vehicle according to the present invention is characterized in that the winch can rotate 360 °. Further, the aerial work vehicle according to the present invention is characterized in that a wheel is attached to the upper end of the arm of the winch.

[0010]

According to the above construction, the aerial work vehicle is moved to an arbitrary work place by the truck and stopped, and the work platform with the lifting / lowering device of the loading platform is raised to a height suitable for the work at a height, and the work place is adjusted according to the work position. Moving the winch to a position where the winch is easily driven or a position where the stability of the work vehicle is improved via the slider,
By operating the winch by operating the operation switch on the worktable or on the ground, a heavy object such as a tool or equipment can be lifted from the ground to an installation position or a replacement position to perform the operation.

When the winch is rotatable 360 °, the winch can be moved to an appropriate position, and then the direction of the winch can be changed according to the direction of the high working position.

When a wheel is attached to the upper end of the arm of the winch, a continuous linear object such as a train line, a power line, a communication line or the like can be pushed up at an arbitrary position by using the winch.

[0013]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of the aerial work vehicle according to the present embodiment at the time of non-working, FIG. 2 is a side view showing a state of the aerial work vehicle at the time of working at a height, and FIG. It is a front view.

The aerial work vehicle according to the present invention comprises a four-wheel truck A, a workbench B with a lifting device, and a winch C.

The four-wheeled truck A has front and rear rubber wheels 1 and 2 for running on a road, and front and rear lifting steel wheels 3 and 4 for running on a track R. And an up-and-down type turntable 5 for changing the direction of the truck when entering and exiting the railway track from the road.

The workbench B with a lifting device is, for example, constructed by mounting a worktable 7 on a known lifting device 6 comprising cross arms 6a and 6b and a hydraulic cylinder 6c connected to one of the arms. By being mounted on the bed 8 of the four-wheel truck A and maneuvering a driver (not shown) provided on the side of the driver's seat or the bed 8 of the four-wheel truck A,
The work table 7 can be raised from the state where the work table 7 is lowered and shortened on the carrier 8 to a height at which required work at a high place can be performed. The type and structure of the lifting device are not particularly limited. Further, a safety fence is provided around the worktable 7 to prevent a worker who works on the worktable from dropping.

A conventional winch C is attached to the upper surface of the work table 7. This winch may be either a manual winch or an electric winch,
In the preferred embodiment, an electric winch is used.
The operation switch for driving is controlled by a controller box (not shown) having a cord of a required length so that it can be operated on the work table 7 or on the ground.
It is provided in. The winch C is 36
It is rotatable by 0 °, and the lifting position of the heavy object can be freely selected.

As shown in FIG. 4, a guide member comprising a pair of front and rear guide rails extending on the upper surface of the work table 7 in the left-right direction of the work table, that is, in the direction perpendicular to the traveling direction of the four-wheel truck. 9 is provided, and a fitting portion 11 provided before and after a support plate 10 fixed to a lower end portion of the winch C is fitted to the guide member so as to be movable in the left-right direction to form a winch slider. Further, the hole 12 provided in the support plate 10 is matched with one of the holes 13 provided in the guide member 9 at intervals in the longitudinal direction, and the stop pin 14 is inserted into the matched hole from above the support plate 10. Thus, the winch C can be stopped at a desired position.
The guide member 9, the holes 12, 13 of the support plate 10, and the stop pin 14 constitute a winch position fixing means.

This makes it possible to select a position suitable for lifting the winch C from the ground, such as a tool or equipment, or an appropriate position of the winch for securing the stability of the vehicle body of the four-wheel truck during the operation.

The means for fixing the support plate 10 of the winch C to an arbitrary position of the guide member 9 includes the hole 1 as described above.
Instead of using the stop pin 3 and the stop pin 14, a clamp mechanism that clamps and stops the guide member 9 on the support plate 10 side may be provided. In this case, the stop state can be ensured by providing the guide member with a groove or the like into which the claw of the clamp mechanism fits.

FIG. 2 and FIG. 3 show that the aerial work vehicle of this embodiment travels from the road to the inside of the railway line using the turntable 5 by the above configuration, It shows a state in which it rolls and moves to a high place work place and is used for high place work. That is, the workbench 7 is raised to a required position below the trolley wire 31 and the suspension wire 32 by the lifting devices 6a to 6c, and the heavy object 33 is lifted from the ground using the winch C. The lifted heavy object 33 can be picked up by an operator on the workbench 7 and attached to or replaced with electric circuit facilities.

Accordingly, for example, the insulator 33a is attached to the truss beam 34 or the feeder base 35, the curved bundle 33b is attached to the truss beam 34, and the movable bracket 33c is attached to the truss column 36. , Which allows the operator to safely and efficiently mount or replace those heavy objects on the workbench.

The dotted line portion 7A in FIG. 3 is a scaffolding stand that is extended when a right and left slide-type working table is used as the working table 7. The use of such a left-right sliding work table for an aerial work vehicle equipped with the winch C of the present invention can extend the safe working range of the worker without changing the stop position of the vehicle. , Very helpful.

In the above embodiment, the winch C is the arm 1
The rope or wire 18 provided with a hanging means or a gripping means such as a hook 17 at the tip from the pulley 16 of FIG. 5 is simply moved up and down. In a preferred embodiment of the present invention, as shown in FIG. A wheel 19 is attached to the end of the wheel 15. When using a winch with such a wheel, as shown in FIG. 2, when installing or replacing the insulator 33a between the truss beam 34 and the suspension line 32, first, the winch is used. Insect 3 with hook 17
3a is lifted from the ground, the suspension wire 32 is pushed up by the winch wheel 19 near the truss beam to relax the tension of the suspension wire, and the suspension wire 32 is brought close to the truss beam 34, The insulator 33a can be easily attached to the truss beam 34, and the suspension wire can be easily connected to the insulator. An insulator 33a is provided between the electric wire base 35 and the electric wire 37 shown in FIGS.
Also in the case of mounting, similarly to the above-described example, the insulator can be easily attached or replaced with the wire rope 18 of the winch C and the wheel 19 in a state where the tension of the feeder wire is loosened.

In the above-described embodiment, an example of working at heights in a railway line has been described. However, the working vehicles at heights according to the present invention are, of course, not limited to traffic lights, road signs, telephone lines and transmission lines. It can be used for work in the same way.

[0026]

[Effects of the Invention] As described above, according to the present invention, the truck is moved to an arbitrary work place and stopped, the worktable is raised to a height suitable for work at a high place, and the winch is further driven. A heavy object such as a tool or equipment can be easily and safely lifted from the ground to an installation position or a replacement position, and mounting or replacement work can be performed. Therefore, it is possible to work at heights much more safely, quickly and efficiently than before,
Labor costs can be significantly reduced. In addition, a slider that moves in the direction perpendicular to the traveling direction of the truck is attached to the workbench, and a winch is attached to the slider. It can be moved to a position where the workability is improved, the safety of work at heights is further improved, and the work efficiency is improved.

When the slider is provided with a winch position fixing means, it is possible to secure the stability and safety of work at a high place by fixing the winch after the movement.

Further, when the winch can be rotated 360 °, regardless of the direction of the stopped working vehicle,
The working range at the stop position of the work vehicle can be expanded.

Further, when a wheel is attached to the upper end of the arm of the winch, a continuous linear object such as a train line, a power line, a communication line, etc. can be pushed up at an arbitrary position by using the winch. As a result, it is possible to easily attach or replace the connecting member between the linear object and the member that suspends the linear object without being affected by the tension of the linear object.

[Brief description of the drawings]

FIG. 1 is a side view of the aerial work vehicle according to the present invention when not working.

FIG. 2 is a side view showing an example of a use state of the aerial work vehicle according to the present invention.

FIG. 3 is a front view of the same use state.

FIG. 4 is a perspective view of a winch position adjusting means according to another embodiment of the present invention.

FIG. 5 is a perspective view of an upper end portion of a winch according to another embodiment of the present invention.

[Description of Signs] A Track B Workbench with lifting device C Winch 9,10 Slider 9 Guide member 10 Support plate 12,13,14 Winch position fixing means 12,13 hole 14 Stop pin 19 Gold wheel

Claims (4)

(57) [Scope of request for utility model registration] 1. A high height characterized in that a slider is mounted on a work table with an elevating device provided on a loading platform of a truck so as to be movable in a direction perpendicular to the traveling direction of the truck, and a winch is mounted on the slider. Work vehicle. 2. A slider which is fixed to a lower end of a winch and a guide member which is fixed to an upper surface of a worktable and guides the support plate movably in a direction perpendicular to a traveling direction of a track. 2. The aerial work vehicle according to claim 1, further comprising fixing means for fixing the support plate to the guide member at a position after the movement. 3. The aerial work vehicle according to claim 1, wherein the winch is rotatable 360 °. 4. The aerial work vehicle according to claim 1, wherein a wheel is attached to an upper end of the arm of the winch.