Vertically stored dockboard

Details Vertically stored dockboard Vertically stored dockboard

1987-06-22

1988-10-11

Massie, IV, Jerome W.

Bridges

Gangway, ramp, or dock leveler

Attached

14 717, E01D 100

Patent

active

047760524

ABSTRACT:
A vertically stored dockboard. The dockboard includes a frame or supporting structure which is mounted on a loading dock and a rap or deck plate is hinged at its rear edge to the frame and is movable between a generally vertical storage position and a horizontal operating position where the ramp bridges the gap between the loading dock and a truck parked in front of the dock. The ramp is moved upwardly to the vertical storage position by a hydraulic cylinder mechanism and is locked in the storage position by a toggle assembly. As the ramp is moved upwardly to the vertical storage position, the toggle assembly will be automatically moved to an over-center position to lock the ramp in the storage position. The toggle assembly can be released by a manually operated toggle release arm to enable the ramp to fall by gravity to the horizontal storage position.

REFERENCES:
patent: 3327650 (1967-06-01), Bridges et al.
patent: 3685076 (1972-08-01), Loblick
patent: 3685077 (1972-08-01), Wiener
patent: 3694839 (1972-10-01), Loblick
patent: 4257137 (1981-03-01), Hipp et al.
patent: 4343058 (1982-08-01), Loblick
patent: 4398315 (1983-08-01), Driear
patent: 4525887 (1985-07-01), Erlandsson et al.
patent: 4665579 (1987-05-01), Bennett et al.
patent: 4689846 (1987-09-01), Sherrod

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