Patent ID: 8286944

Claim:
A motor vehicle lift comprising: two parallel runways for supporting vehicle wheels, each runway being provided with at least two devices for elevating the vehicle wheels from the floor, wherein each device comprises: a pair of equal-length first ( 6 ) and second ( 10 ) uprights having an end hinged to each other, and another end hinged to a floor and to the runway respectively, in positions corresponding with two superposed vertical axes, a pair of first ( 14 ) and second ( 16 ) arms hinged together at one end, the first arm ( 14 ) having a length shorter than that one a length of the second arm ( 16 ), which is hinged to the second upright ( 10 ) along a hinge pin ( 22 ) equidistant from an axis ( 12 ) on which the second upright ( 10 ) is hinged to the runway ( 2 ) and from an end ( 18 ) of the second arm ( 16 ) which is slidable along a guide ( 20 ) provided in the runway ( 2 ), the first arm ( 14 ) being hinged at the other end to the first upright ( 6 ) in a position such that a distance of the hinge pin ( 22 ) of the second arm ( 16 )/second upright ( 10 ) from the hinging axis of the first upright ( 6 )/second upright ( 10 ) corresponds to a distance of a hinging axis of the first arm ( 14 )/second arm ( 16 ) from a hinge pin ( 28 ) of the first arm ( 14 )/first upright ( 6 ), an actuator device ( 24 , 26 ) having ends hinged on said hinge pin ( 22 ) and on said hinge pin ( 28 ) respectively, and at least one of the first/second uprights or first/second arm being provided with an elastic element ( 30 ) enabling it to vary the dimension between its hinged ends.