Counterbalance for mechanical dock leveler

Details Counterbalance for mechanical dock leveler Counterbalance for mechanical dock leveler

1998-09-21

2000-10-03

Pezzuto, Robert E.

Bridges

Gangway, ramp, or dock leveler

14 711, E01D 100

Patent

active

061254916

ABSTRACT:
A dock leveler has a deck pivotally mounted to a frame. A counterbalance mechanism uses a pair of pivoting links connected together at a common point with a tension spring that is coupled at the other end to the deck. The links together with the frame and the deck form a four-bar linkage biased by the spring to counterbalance the weight of the deck.

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