JPS6116312Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lift for vehicle maintenance, and particularly to a lift suitable for maintenance of vehicles with long bodies such as trucks.

Conventionally, for this type of lift, four pillars were planted on the foundation surface, the left and right sides were paired, a horizontal beam was placed between each pillar, and the beams were moved up and down by a cylinder via wires, chains, etc. Some devices are configured to raise and lower the vehicle by moving the vehicle. However, this lift has drawbacks such as wires, chains, etc. rusting due to waste water from car washing, and foreign objects getting caught in the lift, and also because the supports are fixed in place.
This not only reduces the work area, but also causes problems in the work.

On the other hand, there is one in which the arm supporting the vehicle hangs down from a pair of left and right rails installed on a structure (Special Publication No. 55-46360). With this lift, there are no obstacles on the floor.
Although it does not interfere with the work and there is no need to worry about problems caused by car wash waste water, only one arm hangs down from the left and right pair of rails, and there are horizontally rotatable horizontally rotatable parts at the lower left and right ends of the arm, respectively. Two pedestal arms are attached and each pedestal arm is expanded into a diamond shape to fit the lower surface of the vehicle. Therefore, it can only be applied to regular automobiles, and if the body is long such as a truck, the support becomes unstable, and if the lower part of the vehicle is uneven in the longitudinal direction, it is difficult to support the vehicle horizontally. There is a drawback that it cannot be done.

An object of the present invention is to provide a hanging type vehicle maintenance lift that can be used for various vehicles including large vehicles such as trucks.

That is, in the vehicle maintenance lift according to the present invention, a pair of left and right support arms are attached to the front and back of the rail.
It is constructed so that it can run freely on rails and can be adjusted according to the length of the vehicle.

This will be explained below based on the illustrated embodiments.

The illustrated lift carries support arms 4 and 4 of the vehicle A through support base frames 2 and 3 from rails 1 and 1, respectively.
4, 5, 5 hanging from the front, back, left and right.

The rails 1, 1 are a pair of left and right rails, and they are attached to the existing structure B as appropriate. The mounting position may be set along the ceiling as shown in the figure.
Alternatively, the front and rear ends can be fixed between the cross beams of the workshop.

The support arms 4, 4, 5, 5 are a pair of left and right,
The left and right sides are configured to be able to expand and contract in synchronization. As for the expansion/contraction mechanism, as in Japanese Patent Publication No. 55-46360, each arm is composed of, for example, three continuous members 4a, 4b, and 4c having a U-shaped cross section and different sizes, and a roller 6, 7 to be slidable, and a cylinder 8 disposed at the center of the supporting base frames 2 and 3 of the arm can be configured to pull the wire 10 that rotates the pulleys 9, 9, . . . as appropriate.
Note that if double cylinders connected to the same hydraulic circuit are used as the cylinders, the structure for routing the wire to the pulley can be simplified.

At least one of the left and right support arms 4, 4 or 5, 5 is configured to be able to run on the rails 1, 1. In the illustrated embodiment,
Support arms 4, 4 hanging forward are configured to be movable, and guide rollers 2a, 2a are attached above both ends of the support base frame 2, and these rollers 2a, 2a are installed in the grooves of the rails 1, 1. It is installed in the. Guide rollers 2a, 2a are rotating shafts 11
A pulley 12 fixed on its shaft is rotated by a motor 13 to travel along the rails 1, 1. It should be noted that both the front and rear arms may be configured to be freely movable, so that the spacing between the front and rear arms can be quickly adjusted depending on the length of the vehicle, or the vehicle can be sent to the next process with the wheels still on it and perform different types of work in a series. It's tsutari.

Further, the support arms 4, 4, 5, 5 have their lower ends 4c, 4c or 5c, 5c on the pedestal portion 4d between the left and right sides.
Alternatively, it can be configured to connect at 5d.
With this configuration, it is possible to eliminate the possibility that the left and right sides of the support arm will expand laterally due to the load of the vehicle.
Durability in use can also be improved.

The vehicle maintenance lift constructed in this manner can be applied to even large vehicles by adjusting the distance between the front and rear support arms depending on the length of the vehicle to be serviced.

That is, depending on the vehicle type, the support arms 4, 4 are moved in advance by button operation, and the distance between them and the rear support arms 5, 5 is adjusted. Next, each arm is extended and lowered by button operation, and is moved to the running surface of the vehicle A. After that, after getting into the vehicle and stopping it in a fixed position, check the lower surface of the vehicle that the support arms 4, 4, 5, and 5 contact, and if it is flat, retract the support arm at that position. This will lift the vehicle. If there are irregularities in the lower part, the support arms 4, 4 are moved appropriately to change the abutting support surface, and then the support arms are made to perform a retracting operation. When making this adjustment, it is best to have a configuration that allows the front and rear to move freely together, and although the left and right arms are driven in synchrony,
It is preferable to operate the front and rear parts separately so that the vehicle can be suspended horizontally depending on the height of each contact support part.

As described above, according to the vehicle maintenance lift according to the present invention, a vehicle of any length can be hung stably for maintenance, and since it is configured to be installed on the ceiling, it can be mounted on the floor. It also has the advantage of having no obstacles.

[Brief explanation of the drawing]

FIG. 1 is a side view of a vehicle maintenance lift according to the present invention, FIG. 2 is a front view of the same, FIG. 3 is a partially cutaway side view of the same, and FIG. 4 is a sectional view taken along the line of FIG. 3. 1...Rail, 2, 3...Support base frame, 2a, 3
a... Guide roller, 4, 5... Support arm, 4
a, 4b, 4c, 5a, 5b, 5c...connection member, 4d, 5d...cradle portion.

Claims (1)

[Scope of claim for utility model registration] 1. Erection of a pair of left and right rails on an existing structure,
A pair of left and right support arms that extend and contract in synchrony from the left and right sides to embrace the lower part of the vehicle are attached to the rails.
A lift for vehicle maintenance, characterized in that the vehicle maintenance lift is configured such that at least one of a pair of left and right support arms hanging down front and rear can run on a rail. 2. The vehicle maintenance lift according to claim 1, wherein the pair of support arms are integrated by connecting the left and right lower ends with a pedestal part.