JP2003192281A - High lift working vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that, in making a large high lift working device, for example, minimizing the size of the high altitude working device is impor tant to secure necessary spaces for loading tools on a vehicle and for boarding on a work table but it is impossible to store the work table and an arm in a compact manner. <P>SOLUTION: The high lift working vehicle has a rotation center 1 at a position 3 which is offset from a vehicle center 2 to either right or left and is just behind a cabin 4, and a derrickable arm 7 and a work table 8 are mounted at the tip end of a vertical lift mast 6 attached to a rotatable rotation device part 5. When stored, the vertical lift mast 6, the arm 7 and the work table 8 are on the right and left sides of the vehicle and fit within the width of the vehicle. In addition, the rotation center 1 is offset from the center of the work table 8. <P>COPYRIGHT: (C)2003,JPO

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 for mounting an aerial work apparatus on a vehicle.

[0002]

2. Description of the Related Art An aerial work vehicle having an aerial work device attached to a vehicle has a turning center of a turning device arranged on the center line of the vehicle and a vertical lifting mast attached to the turning device. The base of the arm is attached to the tip so that it can be undulated, and the workbench on which the operator is to ride is attached to the tip of the arm in a horizontal state.
In the above, the arm and the workbench are positioned on the center line of the vehicle so that the left and right weights are evenly balanced.

[0003]

As the work equipment for aerial work becomes larger, the space for loading tools and the like on the vehicle and the space for getting on and off the workbench are eliminated, so that the work equipment for aerial work needs to be compact and necessary. It is important to secure space, but if the lifting mast is shortened to store the workbench, there is a problem that the workbench and arm cannot be stored compactly. This invention made it a subject to solve such a malfunction.

[0004]

The present invention has been made in response to the above-mentioned problems, and the invention according to claim 1 is such that the turning center of the turning device part which can turn freely is located on the left and right of the vehicle center. At a position offset to either side and immediately behind the cabin, a hoisting arm is attached to the tip of a vertical lifting mast attached to the swivel unit, and a workbench is attached to the tip of the arm. The aerial work vehicle is characterized in that it is mounted, and the vertical lifting mast, arm, and workbench are sequentially positioned in the left-right direction of the vehicle in the retracted state and are contained within the vehicle width dimension.

By adopting such a structure, when the swivel device section makes a full swivel of 360 degrees, the vertical lifting mast is expanded and contracted, and the arm at the tip is undulated or expanded and contracted, the workbench ensures a high lift and a wide working radius. can do.

The invention according to claim 2 is characterized in that, in the work vehicle for high places according to claim 1, the turning device part is slidable in the horizontal direction of the vehicle.

Therefore, with this structure, the revolving device including the revolving base can be slid horizontally.
A wider working radius can be created.

According to a third aspect of the present invention, in the aerial work vehicle according to the first and second aspects, the turning center and the workbench center are mounted offset in the front-rear direction of the vehicle. .

With this configuration, the turning center and the workbench center are offset from each other in the front-rear direction of the vehicle,
When the workbench is stored in the vehicle, it is possible to secure an elevator space for the operator to get on and off.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are views showing an aerial work vehicle in which the aerial work apparatus of the present invention is mounted on a vehicle, and are a top view, a side view during work, a side view during storage, and a rear view, respectively.

In the aerial work vehicle of the present invention, as shown in FIGS. 1 and 3, an aerial work device in a retracted state is arranged immediately behind the cabin 4, and tools and materials are provided behind the aerial work device. A luggage loading box 11 for storing items such as items is provided.
Further, the high-altitude work apparatus includes a turning device section 5, a vertical lifting mast 6, an arm 7 and a workbench 8, and a turning center 1 is located at a position 3 offset from the vehicle center line 2 to the left or right. There is.

According to FIG. 1 which is easy to understand the structure of the aerial work apparatus, the turning device section 5 is located at the front of the vehicle so that the turning center 1 is at the position 3 offset to the right of the vehicle center line 2 in the retracted state. A vertical elevating mast 6 which is provided immediately behind the cabin 4 and is vertically rotatable is provided above the swivel unit 5 so as to be rotatable.

This aerial work apparatus further has a structure in which the turning center 1 is slidable in the left-right direction of the vehicle, and passes from a turning device section 5 through a vertical elevating mast 6 and an undulating or expanding / contracting arm 7. , The workbench 8 attached to the tip of the arm 7 slides left and right, and
As shown by the chain line inside, the movable range of the workbench 8 is widened.

The turning device 5 shown in FIG. 4 is slid to the left by using a driving device such as a cylinder (not shown) provided between the turning device 5 and the vehicle.

The vertical lifting mast 6 has a base end mast 21 having a lower end attached to the swivel unit 5, an intermediate mast 22 which is telescopically inserted into the outside of the base end mast 21, and an outside end of the intermediate mast 22. Tip mast 23 that can be freely inserted
It is configured to be expanded and contracted with respect to the base end mast 21 by a built-in expansion and contraction device (not shown).

A base end of a parallel link type arm 7 is rotatably pivoted at the upper end (tip) of the tip mast 23 shown in FIGS. 2 and 4, and both ends of the arm 7 and the tip mast 23 are attached. The arm 7 is moved up and down with respect to the tip mast 23 by the expansion and contraction of the undulating cylinder 9 pivotally attached.

A workbench 8 on which an operator rides is attached to the tip of the arm 7, and the workbench 8 is always in a horizontal normal state irrespective of the ups and downs of the arm 7 by the action of the parallel link mechanism of the arm 7. keeping.

Since the turning center 1 and the center of the workbench 8 attached to the tip of the arm 7 are attached offset in the front-rear direction of the vehicle in the retracted state, the width dimension of the aerial work apparatus during storage. Can be compactly assembled.

That is, at the time of work, the arm 7 is raised and lowered, the turning device section 5 is slid, and the vertical lifting mast 6 is extended and turned to set the work table 8 to an arbitrary work position. A position 3 in which the vertical lifting mast 6 is turned so that the arm 7 and the workbench 8 face the left direction of the vehicle, and the turning device section 5 is offset to the right from the vehicle center.
After the slide movement to, the vertical lifting mast 6 is fully reduced, and the arm 7 is laid down to lower the workbench 8 to the left side of the vehicle just behind the cabin 4.

It is not limited to this that the turning device section 5 is on the right side of the vehicle and the workbench 8 is on the left side of the vehicle at the time of storage as described above, but the opposite arrangement is also possible. As another embodiment different from the above description, the arm 7 may be provided with a workbench 8 which can be swung or a function which allows the arm 7 to extend and contract.

As described above, in the structure of the aerial work vehicle, the turning center 1 and the vehicle center line 2 are offset from each other, and the turning center 1 and the workbench 8 are offset from each other, so that a compact storage state and a wide working range can be achieved. It can be used as an aerial work vehicle.

Further, a space for a large luggage loading box 11 can be secured, and a space for a work vehicle to get on and off the workbench 8 is secured in front of the vertical lifting mast 6, so that the workbench 8 can be safely and comfortably moved. It is possible to get on and off.

[Brief description of drawings]

FIG. 1 is a top view of an aerial work vehicle in which the aerial work apparatus according to the present invention is mounted on a vehicle.

FIG. 2 is likewise a side view showing a state when the lifting mast is raised.

FIG. 3 is likewise a side view of a state in which the high-altitude work apparatus is housed.

FIG. 4 is likewise a rear view.

[Explanation of symbols]

1 turning center 2 vehicle center 3 Offset amount 4 cabins 5 Swivel unit 6 Vertical lifting mast 7 arms 8 workbench

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tsutomu Hojo             1015 1152 Yamashita, Ryoke, Ageo City, Saitama Prefecture               Aichi Corporation Ageo Kogyo             Inside the hall (72) Inventor Shinya Ishii             1015 1152 Yamashita, Ryoke, Ageo City, Saitama Prefecture               Aichi Corporation Ageo Kogyo             Inside the hall F term (reference) 3F333 AA08 AA15 AB13 BA04 BA05                       BA26 BB22 CA04 CA06

Claims (3)

[Claims] 1. A swivel center (1) of a swivel device part (5) which can swivel freely.
Is located at a position (3) offset to the left or right of the vehicle center (2) and immediately behind the cabin (4), and is a vertical lifting mast attached to the turning device section (5).
The undulating arm (7) is attached to the tip of (6), and the workbench (8) is attached to the tip of the arm (7), and the vertical lifting mast (6), the arm (7) and the work are stored in the retracted state. An aerial work vehicle characterized in that the platform (8) is sequentially positioned in the left-right direction of the vehicle and is accommodated within the vehicle width. 2. The aerial work vehicle according to claim 1, wherein the turning device portion (5) has a configuration capable of sliding in the horizontal direction of the vehicle. 3. The aerial work vehicle according to claim 1, wherein the turning center (1) and the center of the workbench (8) are mounted offset from each other in the front-rear direction of the vehicle.