JPH01252497A - Lift device for vehicle to be repaired - Google Patents

Abstract

PURPOSE:To carry out a variety of maintenance works and the measurement and adjustment of the wheel alignment at the same time, by installing a supporting body for raising and lowering a vehicle to be repaired onto a working rod and installing a demountable bearing body onto the supporting body, and installing each supporting leg at the both edges of the bearing body and installing a balance adjusting tool onto the supporting leg. CONSTITUTION:When wheel alignment is measured or adjusted, a bearing body 9 is installed integrally onto a supporting body 3 by a connecting pin 10, and the supporting body 3 is placed onto a floor surface F. A vehicle V to be repaired is placed onto the right and left bearing bodies 9 and 9, and front wheels are positioned on a turning radius gauge 12. Then, the vehicle V is lifted up in the drive-on system, and when the supporting body 3 and the bearing body 9 are lifted up to a prescribed height by a plunger 1, each supporting leg 15 of the bearing bodies 9 and 9 is turned in the direction of arrow and erected on the floor surface F. In this state, the alignment of the front wheel of the vehicle V is carried out by a gauge 12, etc. During the measurement or after the completion of measurement, if inspection of the lower part of the vehicle V, and repair of each part, etc. are to be carried out immediately, the pin 10 is demounted, and only the vehicle V is lifted up by the supporting body 3, with the bearing body 9 erected on the floor surface.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention is directed to a maintenance vehicle that can perform various maintenance work such as inspection, repair, and painting on a maintenance vehicle, and also can measure or adjust wheel alignment at the same time. The present invention relates to a lift device for use.

``Prior Art'' Conventionally, this type of lift device for maintenance vehicles has a carriage attached to a support column that moves up and down using the driving force of a drive motor, and the tip of the carriage is connected to the support rod, support arm, etc. A vehicle treadle having a turning radius gauge for measuring wheel alignment is fixedly attached to the treadle, and a support plate having a plurality of legs passing through holes in the treadle is seated in the center of the treadle. (For example, see Japanese Patent Publication No. 56-360).

``Problem to be Solved by the Invention'' Conventional lift devices for maintenance vehicles are of the drive-on type, in other words, when the maintenance vehicle is lifted to an appropriate height on a platform and the front wheels are positioned on the turning radius gauge. For example, even if the step stool is installed horizontally with the floor, the weight distribution of each maintenance vehicle differs depending on the model, so the maintenance vehicle will not necessarily be in a horizontal position, so it may be necessary to measure wheel alignment or In the case of adjustment, there was a problem in that the inclination of the maintenance vehicle directly led to measurement errors.

On the other hand, in the case of a freewheel system, as the platform lowers, the maintenance vehicle is supported by a support plate whose legs are in contact with the floor, and when the wheels leave the platform, the platform is located on the floor, and the support plate is at a relatively low position with its legs in contact with the floor.
The problem is that maintenance work on the underside of a maintenance vehicle is difficult, and it also interferes with other inspection and repair work.

"Means for Solving the Problems" In order to achieve the above object, the lift device for maintenance vehicles of the present invention has a support body that can directly move the maintenance vehicle up and down to a desired height on the operating rod of the lift. Attachment: The support body is provided with a support body that can be attached and detached via a connector, and support legs are pivotally connected to both ends of the support body.

The above-mentioned lift uses a hydraulic cylinder, and is preferably buried in the floor as a one-post or two-post type for maintenance work. Wheel alignment can also be measured or adjusted using a turning radius gauge installed at the tip of the support or a camber caster kingpin gauge installed on the hub.
At this time, it is desirable that the turning radius gauge and the maintenance vehicle are level, so it is recommended to install a balance adjustment device on the free end of the support leg of the support. .

"Example" To explain the example with reference to the drawings, in the example shown in Figures 1 to 6, X is the floor surface F of a maintenance shop that has both drive-on type and freewheel type functions.
This is a one-post type vehicle maintenance lift device installed in the. In other words, 1 is a plunger of a hydraulic cylinder 2 buried in the floor, and the tip of this plunger 1 is attached to a maintenance vehicle.
A support 3 is fixedly provided for raising the material to a desired height. As shown in FIG. 1, the support body 3 consists of a pair of left and right support plates 4.5 and a connecting plate 6 that connects these support plates 4.5 together, and when viewed from the top, it has the shape of a single character or It is formed in an H-shape.

Reference numeral 7 denotes a rubber plate attached to the upper surface of both ends of the left and right support plates 4.5, and the outer wall of the support plate 4.5 where these rubber plates 7 are located has an insertion hole into which a continuous bottle described later is inserted. 8 is formed. Reference numeral 9 denotes a pair of left and right supports that are removably attached to the left and right support plates 4.5 of the support body 3 through a plurality of connectors, in this embodiment, connection bins 10. As shown in Fig. 2, the center of the upper surface of .9 is cut out so that support plates 4.5 can be loosely fitted into them, and are aligned with the insertion holes 8 at appropriate locations on the outer wall. A connecting bottle attachment hole 11 is formed. A recess 13 for mounting a turning radius gauge 12, which is one of the wheel alignment measurement tools, is formed at the top end of the support 9, and the end on the riding side is formed into a tapered shape 14. . Reference numeral 15 denotes a plurality of support legs which are pivotally connected to both ends of the left and right supports 9.9 and keep the supports 9.9 and the maintenance vehicle V in a horizontal state during wheel alignment measurements. The support leg 15 can be stored on the back side of the support body 9, and when stored, its free end is appropriately locked by a locking piece or the like provided on the support body 9, although not particularly shown.

In the above configuration, when measuring or adjusting the wheel alignment, the support 9 is integrally attached to the support 3 using the connecting pin 10, and the support 3 is positioned on the floor F. . Then, the maintenance vehicle V is mounted on the left and right support bodies 9.9.

At this time, make sure the front wheel is positioned on the turning radius gauge. Thereafter, as shown in FIG. 3, the maintenance vehicle V is lifted up using the so-called drive-on method. When the supports 3 and 9 are lifted up to a predetermined height by the plunger 1, the left and right supports 9.9 are lifted up as shown in FIG.
Rotate each support leg 15 in the direction of the arrow and stand it on the floor F.

In this state, the alignment of the front wheels of the maintenance vehicle (2) is measured using the turning radius gauge 12 or the like.

During the measurement or after the measurement is completed, if you want to immediately inspect the underside of the maintenance vehicle or repair various parts, the connecting bin 10 is removed and the support 9 is removed as shown in FIG.
The maintenance vehicle V is left standing on the floor as it is, and only the maintenance vehicle V is lifted up using the support 3 (freewheel condition during alignment measurement or adjustment).

Next, when mainly inspecting, repairing, painting, or the like the underside of the maintenance vehicle V, the connecting bin 10 is removed and the support body 9 is separated from the support body 3 in advance.

Then, the maintenance vehicle V is mounted on the left and right support bodies 9.9. Thereafter, as shown in FIG. 6, the maintenance vehicle V is lifted up in a so-called freewheel manner. In this case, the support 9.9 is located on the floor F, while the support 3 supporting the maintenance vehicle (2) can freely move up and down as the plunger 1 expands and contracts.

In the embodiment shown in FIG. 7, a balance adjuster 16 is attached to the free end of each support leg 15A in order to keep the left and right supports 9A and the maintenance vehicle V horizontal. As this balance adjuster 16, for example, a turnbuckle-type male screw member is used which is screwed into a female screw portion formed at the free end of the support leg 15A.

The rest of the configuration of this embodiment is the same as that of the previous embodiment,
For convenience, the same parts are given the same reference numerals.

"Effects of the Present Invention" As is clear from the above description, the present invention has the following effects.

(1) When performing various maintenance work using the drive-on method,
For example, when the front part of the vehicle is clearly heavier than the rear part, such as in a front-wheel drive vehicle, safer work can be achieved by having only the support leg at the front end of the support body in contact with the floor.

(2) In the case of a freewheel system, the support body can be separated from the support body that supports the maintenance vehicle.

Therefore, the support body does not get in the way of maintenance work on the undercarriage, etc., and the height of the maintenance vehicle V can be set freely, making it easy to carry out various work such as cleaning and painting.

(3) When measuring or adjusting wheel alignment,
Since the support body and the maintenance vehicle are horizontally supported by the support legs, measurement errors due to unbalance of the maintenance vehicle hardly occur.

(4) When measuring or adjusting wheel alignment, the connecting bin can be removed as required for maintenance work, and the drive-on system can be immediately converted to the freewheel system. Therefore, various maintenance work can be performed efficiently.

(5) In the case of an embodiment in which the support leg is provided with a balance adjuster, the length of the support leg can be freely adjusted to keep the maintenance vehicle in a horizontal state, for example when there is an uneven floor surface. .

Therefore, accurate measurements can be made when measuring or adjusting wheel alignment.

(6) Since the number of constituent parts is small, it can be manufactured at low cost.

[Brief explanation of the drawing]

1 to 6 are explanatory diagrams showing one embodiment of the present invention, and FIG. 7 is an explanatory diagram showing another embodiment of the present invention. 1...Plunger, 3...Support, 4.5.
... Support plate, 9.9A... Support body, 10...
Connecting bottle, 12... Turning radius gauge, 15.15A.
...Support leg, 16...Balance adjustment device. Figure 2 Figure 3,■

Claims (1)

[Scope of Claims] 1) A support that is fixed to the operating rod of the lift and lifts the maintenance vehicle to a desired height, and a support for the maintenance vehicle that is separably attached to this support via a connector. A lift device for a maintenance vehicle, comprising a body and support legs pivotally supported at both ends of the support body. 2) A lift device for a maintenance vehicle according to claim 1, wherein a balance adjuster for keeping the maintenance vehicle horizontal is attached to the free end of the support leg.