Car lift for motor vehicles

A technology of lifting platform and motor vehicle, which is applied in the field of lifting platform, can solve the problems of tilting position of lifting platform, command combination and follow-up combination synchronization interference, etc., and achieve the effect of automatic leveling

Active Publication Date: 2012-04-04
OTTO NUSSBAUM GMBH & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Using at least two cylinder / piston combinations in a command-follower system can easily lead to such problems Due to thermal expansion and / or air factors in the hydraulic system, the synchronization between the command combination and the follow-up combination may be disturbed, so that a tilted position of the lifting table, especially in the raised state, may occur, and / or in the components of the hydraulic system Pressure spikes occur

Method used

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  • Car lift for motor vehicles
  • Car lift for motor vehicles
  • Car lift for motor vehicles

Examples

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Embodiment Construction

[0040] The lifting platform of the embodiment shown in the figures is configured as a lifting column lifting platform 1 with two lifting elements configured as lifting columns 1a and 1b. Each lifting column has support shears 2a, 2b that can move upwards and downwards, and the support shears act on the motor vehicle arranged between the lifting columns 1a, 1b from below during operation, so that the motor vehicle can follow the support shears 2a and 2b increased and increased.

[0041] The control takes place by means of the unit 3 , which includes an operating panel, not shown, which is operated by an operator.

[0042] Lifting column 1a has a first hydraulic cylinder / piston combination for raising and lowering support shears 2a and correspondingly lifting column 1b has a second hydraulic cylinder / piston combination for raising and lowering support shears 2b. The first combination of lifting columns 1 a is designed as a command combination, wherein the overflow opening of th...

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PUM

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Abstract

The present invention relates to a car lift for motor vehicles, having at least a first and a second lift element, each having at least one hydraulic cylinder/piston assembly (9, 9', 10) for lifting motor vehicles, with each cylinder/piston assembly including an inlet (9a, 9a', 10a) for feeding and an overflow for draining hydraulic fluid when the motor vehicle is raised. The first cylinder/piston assembly (9, 9') is embodied as the master assembly, by its overflow being connected in a fluid-guiding fashion to the inlet (10a) of the second cylinder/piston assembly (10) embodied as a slave assembly. At least one of the cylinder/piston assemblies (9, 9', 10) has an overflow channel (9c, 10c) arranged and embodied such that only in an area of the end position at maximally raised or maximally lowered vehicles the inlet (9a, 9a', 10a) of the cylinder/piston assembly is connected in a fluid-conducting fashion to the overflow channel (9c, 10c).

Description

technical field [0001] The invention relates to a lifting platform for a motor vehicle according to the preamble of claim 1 . Background technique [0002] Lifting tables are known for lifting motor vehicles, in particular for maintenance or repair or for lifting systems in garages, which have at least one first and first hydraulic cylinder / piston combination each with a hydraulic cylinder / piston combination for lifting the motor vehicle. Second lifting element. To lift the vehicle, hydraulic fluid, such as hydraulic oil, is supplied to each cylinder / piston combination through an inlet, and the hydraulic fluid squeezed by the piston is discharged through an overflow port. The combination is known here as a command-and-follower system. In this case, a first cylinder / piston combination is designed as a command combination, the overflow port of which is connected in a flow-conducting manner to a second cylinder / piston combination, which is designed as a follower combination. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F7/08B66F7/28
CPCB66F7/20
Inventor H・纳博
Owner OTTO NUSSBAUM GMBH & CO
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