JP2004051335A - Vehicle for high lift work - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle for a high lift work capable of being rapidly and easily moved to a working site and efficiently and safely operated in a high lift even in operating subway and railway lines. <P>SOLUTION: This vehicle for the high lift work comprises a self-running vehicle 1 runnable on a road by tire wheels 1b, a lifting device 2 installed on the self-running vehicle 1, and a working stand 4 installed on the upper part of the lifting device 2. Iron rings 1c are installed on the self-running vehicle 1 so as to be moved in the vertical direction so that the vehicle can run also on rails R. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an aerial work vehicle.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, when working at heights in a subway or a railway business line, a toro truck is brought into a track in accordance with a working time zone, and a bite and a single pipe scaffold are assembled on the toro truck.
On the other hand, a conventional aerial work vehicle includes a self-propelled vehicle capable of traveling on a road, an elevating device provided on the self-propelled vehicle, and a work table attached to an upper portion of the elevating device. There was something. Usually, the self-propelled carriage is equipped with a prime mover such as a gasoline engine and has tire-type or crawler-type running means. The lifting device is an X-link type or telescopic boom type, which raises and lowers the work table.
[0003]
[Problems to be solved by the invention]
However, high-altitude work on a subway or a railway operating line, which is performed by assembling the above-described conventional toro bogie with a bitity and a single-pipe scaffold, is performed within a limited time zone (for example, a blackout time zone from the last train to the first train). In addition to the work that must be performed, extra work such as disassembly and disassembly of the scaffold is required, so that the work time is extremely short.
In addition, the above-mentioned conventional aerial work vehicle cannot enter the subway or the railway business line to perform work.
[0004]
The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to be able to move to a work site quickly and easily, efficiently and safely even in a subway or a railway business line. An object of the present invention is to provide an aerial work vehicle capable of performing work at a high place.
[0005]
[Means for Solving the Problems]
An aerial work vehicle according to the present invention includes a self-propelled vehicle capable of traveling on a road by means of tire wheels, a lifting device provided on the self-propelled vehicle, and a work table mounted on an upper portion of the lifting device. The work vehicle is characterized in that an iron wheel is provided on the self-propelled carriage so as to be movable up and down so that it can travel on rails. Further, the tire wheels are driven to rotate using a battery as an energy source. Further, the self-propelled trolley is driven by a towing vehicle such as a motor car. Still further, an inclination correcting device is interposed between the self-propelled bogie and the elevating device to correct the inclination of the automatic bogie due to the cant of the track so that the elevating device always faces the vertical direction. I do. Still further, the floor plate of the worktable is extendable in a horizontal direction. Further, the working table is provided with operating means such as a running operation, a lifting operation and a floor panel expanding operation.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a self-propelled carriage, which includes a main body frame 1a, tire wheels 1b, iron wheels 1c, and driving means 1d using a battery as an energy source. The iron wheel 1c is vertically movably attached to a distal end of a support rod 1e rotatably connected to the main body frame 1a, and is lowered or lifted on the rail R by a hydraulic cylinder 1f.
[0007]
Reference numeral 2 denotes a conventionally known X-link type elevating device, but may be another conventionally known elevating means such as a telescopic boom type. The elevating device 2 is configured to expand and contract vertically by a hydraulic cylinder (not shown). An inclination correction device 3 is interposed between the main body frame 1 a of the self-propelled carriage 1 and the lifting device 2. The tilt correction device 3 includes a pedestal 3a attached to a lower end of the elevating device 2, a support shaft 3b that pivotally connects one end of the pedestal 3a to the main body frame 1a, and a pedestal 3a. It comprises jack means 3c such as a hydraulic cylinder or a screw shaft for rotating the pedestal 3a by driving the other end substantially vertically. Note that, since the axis of the support shaft 3b is oriented in the traveling direction of the self-propelled bogie 1, that is, in the track direction, the inclination correction device 3 allows the self-propelled bogie 1 to be tilted by the cant of the track. The pedestal 3a is always corrected to a horizontal state, so that the elevating device 2 can expand and contract in the vertical direction (gravity direction).
[0008]
Reference numeral 4 denotes a work table, which is attached to the upper end of the elevating device 2, and includes a floor plate 4a and a handrail 4b around the floor plate 4a. The handrail 4b may have a net-like or wall-like structure other than the frame structure as shown. Below the floor plate 4a of the worktable 4, an expansion floor plate 4a 'that slides left and right is accommodated. With the slide expansion of the expansion floor panel 4a ', the handrail 4b also expands. In addition, 1 g is a step for getting on and off the work table 4.
[0009]
Next, a description will be given of working at heights in a subway premises by the working vehicle at height according to the above embodiment. First, in order to carry the high-altitude work vehicle A from the hangar to the work site, the vehicle is to travel by itself on a track or to the site, or towed by a motor car M as shown in FIG. In addition, when the hangar is not directly connected to the on-site track, the iron wheel 1c is raised, and the vehicle is driven on a general road by the tire wheel 1b or forwarded to the vicinity of the track by an appropriate towing vehicle, Transfer to orbit. In this case, it is possible to enter the track from the railroad crossing. On the track, the iron wheel 1c runs down on the rail R.
[0010]
When the aerial work vehicle arrives at the work site, the work table 4 is raised to an appropriate height by the elevating device 2 as shown in FIG. In this case, if there is a distance from the left and right wall surfaces, the expansion floor plate 4a 'is slid left and right. If there is a further distance, an auxiliary worktable 4 ′ may be attached to the side of the worktable 4. The lifting and lowering operations of the work table 4 and the sliding operation of the expansion floor plate 4b 'are performed by operating means provided in the work table 4. By using the operation means 5 such as a joystick, quick and accurate operation can be performed.
[0011]
Where there is a cant (inclination) on the rail R in a curved track, as shown in FIG. 4, the elevating device 2 is always oriented vertically by the inclination correcting device 3. That is, the pedestal 3a is rotated about the support shaft 3b by the jack means 3c, and the pedestal 3a is operated so as to always maintain a horizontal state. It is preferable that the inclination correction of the inclination correction device 3 is automatically performed by a sensor or the like. The inclination correcting device 3 can cope with the inclination of the trajectory to the left or right.
[0012]
【The invention's effect】
1) An iron wheel is provided on the self-propelled truck so that it can move up and down, and it can run on rails.
2) Since the tire wheels are rotationally driven using the battery as an energy source, a clean working environment can be provided in subways and the like.
3) Since the self-propelled truck is driven by a towing vehicle such as a motor car, it can move to the destination at high speed.
4) An inclination correction device is interposed between the self-propelled truck and the lifting device to correct the inclination of the automatic truck due to the cant of the track so that the lifting device always faces the vertical direction. It is possible to always work at high places in a stable state with the floor plate of the work table horizontal to the cant.
5) Since the floor board of the worktable can be expanded in the horizontal direction, a wide range of work at a high place can be performed.
6) Since the work table is provided with operating means such as a running operation, a lifting operation, and a floor panel expanding operation, the work can be performed efficiently.
[Brief description of the drawings]
FIG. 1 is a side view (A) and a front view (B) showing an embodiment of an aerial work vehicle according to the present invention.
FIG. 2 is an explanatory diagram of towing the aerial work vehicle of FIG. 1 on a rail by a motor car.
FIG. 3 is an explanatory diagram of work at a high place in a subway.
FIG. 4 is an explanatory view of work at a high place on a rail cant.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Self-propelled trolley 1a Body frame 1b Tire wheel 1c Iron wheel 1d Driving means 1e Supporting rod 1f Hydraulic cylinder 1g Stepping on and off step 2 Elevating device 3 Inclination correcting device 3a Base 3b Support shaft 3c Jack means 4 Work table 4a Floor plate 4a 'Expansion floor plate 4b Handrail 5 Operating means A Aerial work platform R Rail

Claims (6)

A self-propelled vehicle comprising a self-propelled vehicle capable of traveling on a road by means of tire wheels, a lifting device provided on the self-propelled vehicle, and a work table mounted on an upper portion of the lifting device. An aerial work vehicle characterized by the ability to move iron wheels up and down so that it can run on rails. The aerial work vehicle according to claim 1, wherein the tire wheel is driven to rotate using a battery as an energy source. The aerial vehicle according to claim 1 or 2, wherein the self-propelled vehicle is driven by a towing vehicle such as a motor car. An inclination correcting device is interposed between the self-propelled trolley and the lifting / lowering device to correct the inclination of the automatic trolley due to the cant of the track so that the lifting / lowering device always faces the vertical direction. 4. The aerial work vehicle according to 1, 2, or 3. 5. The aerial work vehicle according to claim 1, wherein a floor plate of the worktable is expandable in a horizontal direction. The aerial work vehicle according to any one of claims 1, 2, 3, 4, and 5, wherein the work table is provided with operation means such as a running operation, a lifting operation, and a floor plate expanding operation.

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