Bridges – Gangway – ramp – or dock leveler – Attached
Patent
1976-02-26
1977-05-03
Byers, Nile G.
Bridges
Gangway, ramp, or dock leveler
Attached
E01D 100
Patent
active
040205177
ABSTRACT:
A dockboard for use on a loading dock to provide a ramp between the dock and a platform of an adjacent vehicle, the dockboard being of the type that has a dock plate movable between a flat disposition on the surface of the dock to an inclined loading or unloading position. The dock plate is supported on a transverse cross bar adjacent the outer edge thereof with pairs of downwardly projecting arms secured to the dock plate and straddling the cross bar for support of the dock plate thereon while allowing relative movement therebetween to accommodate slight vertical or tilting movement of the dock plate to conform with the bed of an adjacent vehicle during unloading or loading and also to permit easy removal of the dock plate from the cross bar. The cross bar is supported by a pair of vertical posts mounted in guide channels to restrict movement of the cross bar and outer edge of the dock plate in a generally vertical direction with the inner end of the dock plate being free to slide on the dock surface. Toe guard plates are hinged to the side edges of the dock plate and extend laterally therefrom for pivoting from flat dispositions with the dock plate on the dock surface to laterally inclined dispositions in edge contact with the dock when the dock plate is in an inclined loading or unloadng disposition, thereby obstructing access laterally to the space between the dock plate and dock.
REFERENCES:
patent: 2626411 (1953-01-01), Palmer
patent: 2639450 (1953-05-01), Ramer
patent: 2974336 (1961-03-01), Kelley
patent: 3018496 (1962-01-01), Hosbein
patent: 3334368 (1967-08-01), McIntosh
patent: 3456274 (1969-07-01), McGuire
patent: 3493984 (1970-02-01), Reinhard
patent: 3840930 (1974-10-01), Waddell
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