JPH11180268A - Wheel dolly device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the working efficiency by effectively utilizing the space by mounting a moving dolly which moves in a longitudinal direction of a vehicle at a side of the vehicle to be maintained, and mounting a support body for the wheels of the vehicle to be maintained, movably in a vertical direction on a moving body comprising the rear wheels rotating on the moving dolly in a crosswise direction and the front wheels rotating on a floor surface. SOLUTION: A moving dolly 4 comprises a base body 4a and the rollers 4c, 4d pivotted on a lower face of both side parts of the base body 4a, and the roller 4c is engaged with a guide rail 3a to be moved in a longitudinal direction. Further the rear wheels 6d respectively rotated on the both side parts 4b, are pivotted on the rear parts of the moving body 5, and the front wheels 6a rotating on a floor surface 1, are pivotted on the front parts of the moving body 5. Further a support body 7 comprising a pair of support rollers is pivotted on an upper end of an elevating means 8. The moving dolly 4 is moved along the rail 3 at a position opposite to the wheel A of the vehicle to be maintained. Then a lift fork jack 8a is operated to rise the support roller 7 by the elevating means 8, and the moving body 5 on which the demounted wheel A is placed, is moved backward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel dolly device for holding a wheel removed from a vehicle in order to lift up the vehicle and inspect and maintain related equipment on the lower surface of the vehicle body.

[0002]

2. Description of the Related Art As a conventional wheel dolly device, a pair of rails b extending in the front-rear direction along a vehicle to be serviced is provided on a floor a on the side of the vehicle to be serviced which is stopped at a predetermined position as shown in FIG. Laid, a rectangular frame c and 4
A carriage d composed of a plurality of rollers d is formed to be movable in the front-rear direction along the vehicle to be serviced while engaging with the rails b at the rollers d;
The front and rear wheels g pivotally supported by the moving body f are engaged with the moving body f
Is formed so as to advance and retreat on the frame c toward the vehicle to be serviced, and the supporting roller j of the wheel i of the vehicle to be serviced is formed on the moving body f via lifting means h. Have been. Here, k indicates a gripping rod.

[0003]

According to this conventional wheel dolly device, as shown in FIG. 4, the wheel i of a large vehicle to be serviced, such as a truck, lifted by a lift.
, The moving body e extends to just below the moving carriage e, and the moving body f moves along the moving carriage e to just below the wheel i. In order to carry out the maintenance work in the above, the movable cart e
There is a problem in that it extends to a position directly below the wall and becomes a hindrance, leading to a decrease in work efficiency and an ineffective use of space.

[0004] It is an object of the present invention to solve these problems and to provide a wheel dolly apparatus in which space can be effectively used and work efficiency can be improved.

[0005]

In order to achieve this object, the present invention provides a movable trolley that moves on the floor in the front-rear direction of a vehicle to be serviced which is stopped at a predetermined position,
A moving body having a rear wheel rolling on the movable cart in the left-right direction and a front wheel rolling on the floor, and a bearing provided on the moving body so as to be able to ascend and descend to support wheels of the vehicle to be serviced. It is characterized by consisting of a body.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.

Reference numeral 1 denotes a floor of a work place, and 2 denotes a pit formed on the floor 1. A lift is installed in the pit 2, and a truck or the like that enters the pit 2 and stops there. The vehicle can be lifted by the lift.
A rail 3a is laid on the floor 1 beside the pit 2 in parallel with the pit 2, and the rail 3a is formed as a mountain-shaped guide rail.

Reference numeral 4 denotes a movable trolley. The movable trolley 4 comprises a U-shaped base body 4a and rollers 4c and 4d pivotally supported on the right and left portions of the lower surface of both sides 4b of the base body 4a. One of the rollers 4c is formed as a V-shaped roller and rolls while engaging with the angled guide rail 3a, and the other roller 4d rolls on the floor surface 1 so that the movable carriage 4 Can be moved back and forth along the rail 3a.

Numeral 5 denotes a rectangular frame-shaped moving body. Rear wheels 6b which roll on the both side parts 4b are supported at the rear of both side parts of the moving body 5, and the moving body 5 A front wheel 6a, which is a caster wheel rolling on the floor surface 1, is supported at the center of the front part.

Reference numeral 7 denotes a bearing for supporting the wheel A of the vehicle to be serviced. The bearing 7 comprises a pair of bearing rollers, and these bearing rollers 7 are lifting means 8 mounted on the moving body 5. The lifting means 8 is composed of an X-shaped link mechanism pivotally mounted in the middle of the lift fork jack 8.
a and the hydraulic release valve 8b is operated to move up and down.

Reference numeral 9 denotes a gripping means. The gripping means 9 is composed of side rods 9a and 9b and a horizontal rod 9c connecting and connecting the upper ends of the side rods 9a and 9b. 3 is lifted to disengage the lower end of one of the side bars 9a, and rotated by, for example, 180 ° around the other side bar 9b.
The state shown by the dotted line in FIG. Reference numeral 10 denotes a component hanger.

Next, the use of the wheel dolly of the above embodiment will be described.

For example, a vehicle to be serviced on a truck enters and stops so as to straddle the pit 2, and the vehicle to be serviced is lifted to a predetermined height by a lift.

Thereafter, with the movable body 5 resting on the movable trolley 4, the movable trolley 4 is moved on the floor 1 along the rail 3a to a position facing the wheels A of the vehicle to be serviced. At this time, since the front wheel 6a of the moving body 5 is a caster wheel, the front wheel 6a
a rotates on the floor surface 1 after rotating 90 °.

Here, the movable trolley 4 is substantially half shorter than the conventional one and the movable body 5 is mounted on the movable trolley 4, so that the movable trolley 4 is located near the side of the vehicle to be serviced. The maintenance work equipment can be placed for maintenance work without hindering movement, and the space can be effectively used.

Thereafter, when the moving body 5 is moved directly below the wheel A, the front wheel 6a rotates by 90 ° to rotate on the floor surface 1 and the rear wheel 6b moves on both sides 4b of the movable carriage 4. The moving body 5 is moved forward while turning, and the moving body 5 is positioned directly below the wheel A. Then, the lift roller 8 is actuated to lift the support roller 7 by the lifting / lowering means 8, and the moving body 5 is retracted with the removed wheel A placed on the support roller 7. In this state, there is no obstruction immediately below the vehicle at the place where the wheel A is mounted, and the work is easy to perform.

After the operation is completed, the moving body 5 is moved forward to mount the supported wheel A to the vehicle, and then the hydraulic pressure release valve 8b
Is released, the support roller 7 is lowered by the lifting / lowering means 8, and then the moving body 5 is retracted so as to rest on the moving carriage 4, and then the moving carriage 4 is moved along the rail 3a onto the floor surface 1. Move and return to the original position.

Since the front wheel 6a is composed of one caster wheel, the moving body 5 can be easily moved.

In the above-described embodiment, the front wheel 6
Although the example in which a is supported at the center of the front part of the moving body 5 is shown, the front wheel 6a may be supported at a plurality of positions in the front part of the moving body 5 as necessary.

In the above-described embodiment, the gripping means 9 is formed rotatably.
At the lower end of 9b, it may be detachably provided at the rear part of the moving body 5.

[0021]

As described above, according to the present invention, since the moving body is retracted and placed on the movable trolley, the vicinity of the side of the vehicle to be serviced becomes an effective space, and the maintenance work is efficient. It has the effect that can be performed.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a wheel dolly device of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view.

FIG. 4 is a front view of a conventional wheel dolly device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor surface 4 Moving trolley 5 Moving body 6a Front wheel 6b Rear wheel 7 Support body 8 Elevating means 9 Holding means 9a, 9b Side rod A Wheel

Claims (4)

[Claims] A moving vehicle moving on the floor in the front-rear direction of the vehicle to be repaired stopped at a predetermined position, a rear wheel rolling on the moving vehicle in the left-right direction, and A wheel dolly device, comprising: a moving body having front wheels rolling on a floor; and a supporting body provided on the moving body so as to be able to ascend and descend to support wheels of the vehicle to be serviced. 2. The wheel dolly apparatus according to claim 1, wherein the front wheel comprises a caster wheel provided at a front portion of the moving body. 3. A gripping means is provided at a rear portion of the moving body, the gripping means comprising a lateral rod and a lateral rod connecting and connecting the lateral rods, and the gripping means releases the lower end of one of the lateral rods. 3. The wheel dolly device according to claim 1, wherein the wheel dolly device is formed so as to be rotatable around the other side rod. 4. A gripping means comprising a two-sided rod and a horizontal rod connecting and connecting the both-sided rods in a rearward part of the movable body, and being detachably provided. Item 3. The wheel dolly device according to item 2.