Dock leveler lip actuation mechanism

Details Dock leveler lip actuation mechanism Dock leveler lip actuation mechanism

1990-12-04

1992-02-18

Britts, Ramon S.

Bridges

Gangway, ramp, or dock leveler

14715, E01D 100

Patent

active

050881434

ABSTRACT:
A dock leveler having an operative lever arm assembly to assist in raising the lip by spring action. The assembly comprises a latch arm which selectively engages a series of spaced stop positions on the underside of the deck to support the lip in an outward postion should it not fully extend during the raising of the deck. A hydraulic shock absorber is adapted to be coupled to the lever assembly at a variety of spaced mounting points on the lever assembly.

REFERENCES:
patent: 3137876 (1964-06-01), Loomis
patent: 3639935 (1972-02-01), Kumpolt
patent: 3881207 (1975-05-01), Jones, Jr. et al.
patent: 4127201 (1978-11-01), Baumann
patent: 4293969 (1981-10-01), Frommelt
patent: 4555211 (1985-11-01), Metz
patent: 4619008 (1986-10-01), Kovach et al.
patent: 4792274 (1988-12-01), Cockram
patent: 4922568 (1990-05-01), Hageman
patent: 4961241 (1990-10-01), Alexander

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