Mechanism for automatically storing swing arms used for apparatu

Details Mechanism for automatically storing swing arms used for apparatu Mechanism for automatically storing swing arms used for apparatu

1986-07-18

1987-07-14

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 867, 254 89R, B60S 1300

Patent

active

046796606

ABSTRACT:
In a car lift apparatus including a pair of spaced apart posts each having a vertically-movable carriage, a pair of swing arms pivotally connected to the carriage for swinging movement each comprises a hollow support arm element connected to a pivotal pin of the carriage and a telescopic hollow arm element supported by and slidable in the former arm element. The latter arm element has a hollow cylinder therein, while the former arm element includes a hollow piston rod therein which has one end thereof in the cylinder. A piston is connected to the end of the piston rod in the cylinder. The hollow piston rod is connected, at its other end, to an air compressor located outside the lift apparatus. The piston rod is also connected, at its same end, to the carriage by means of a chain which engages a portion of the pivotal pin, to which is connected the support arm element, at a portion of the middle section of the chain.

REFERENCES:
patent: 4084790 (1978-04-01), Molnar

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