Patent ID: 6327733
Filing Date: 2001-12-11
Classification: B65G

Abstract:
A dock leveler comprising:a frame adapted to be fixedly mounted at a dock;a deck, pivotally mounted to said frame at one end thereof, and having a pivotable lip at the other end thereof;a spring attached to said deck and said frame to raise and provide primary support for said deck,a hydraulic actuator coupled at one end to said deck to provide a power assist during raising of the deck,a linkage member pivotally coupled at one end to said frame and at another end to said hydraulic actuator, whereinsaid hydraulic actuator supplements said spring to assist in moving said deck from a generally horizontal stored position into an operative position while said linkage member remains retracted, and said linkage member operable to allow said deck to be raised manually when said hydraulic member is not operative and said leveler is elevated manually by upward pivotal movement using said inoperative hydraulic member as a link between said frame and said deck.