Dockboards

Details Dockboards Dockboards

1986-07-23

1988-01-12

Novosad, Stephen J.

Bridges

Gangway, ramp, or dock leveler

Attached

14 717, E01D 100

Patent

active

047181362

ABSTRACT:
A dockboard comprising a ramp assembly, a frame for supporting the ramp assembly for pivotal movement in a pit formed in a loading dock, a hydraulic piston-cylinder assembly mounted on the bottom of the pit in the loading dock for pivoting the ramp assembly with respect to the supporting means, a lip assembly pivotally mounted on the free end of the ramp assembly, a hydraulic piston-cylinder assembly mounted on the ramp assembly for pivoting the lip assembly to an extended position forming a continuation of said ramp assembly, the ramp assembly including a tread plate and a plurality of hinge plates mounted in a parallel spaced relation on the tread plate, each hinge plate including an ear, and a stop bar mounted on the end of the ramp assembly in the path of travel of the ears for limiting the pivotal movement of the lip assembly.

REFERENCES:
patent: 2644971 (1953-07-01), Rowe
patent: 3203002 (1965-08-01), McGuire
patent: 3204270 (1965-09-01), Fenton
patent: 3249956 (1966-05-01), Zajac et al.
patent: 3587126 (1971-06-01), Potter
patent: 3886615 (1975-06-01), Metro
patent: 4557008 (1985-12-01), Jurden

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