Lifting device, especially elevating platform for motor vehicles
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United States of America Patent
Stats
-
Mar 4, 1986
Grant Date -
N/A
app pub date -
May 18, 1984
filing date -
May 20, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a scissor-type lifting platform with two pairs of scissors disposed independently of one another, with hydraulic operation, a control cylinder is provided at one pair of scissors which is designed such that it produces the power required for the lifting of both pairs of scissors. A slave cylinder is series connected to said control cylinder at the second pair of scissors, which in the case of the lifting movement of the control cylinder is supplied with pressure medium. In this manner, a synchronization of the two pairs of scissors is achieved perforce and a mechanical connecting arrangement between the two pairs of scissors for the monitoring of synchronization may be eliminated.
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