Material or article handling – Self-loading or unloading vehicles – Loading or unloading by other carrier or mover means – and...
Patent
1981-08-06
1983-10-04
Sheridan, Robert G.
Material or article handling
Self-loading or unloading vehicles
Loading or unloading by other carrier or mover means, and...
414917, 414921, B60P 148
Patent
active
044076240
ABSTRACT:
A horizontal loading platform is pivotally interconnected by a pair of spaced apart and opposed linkage systems, positioned on either side thereof. Each linkage system includes five pivotally interconnected links which are arranged so that a first common link is disposed above the loading platform and the points of pivotal interconnection of a first set of spaced apart links to the common link and to the loading platform define the corners of a first parallelogram. The points of pivotal interconnection of a second set of spaced apart links to said common link and to said framework define the corners of a second parallelogram. Thrust links, which includes an offset arm on the inboard link of said second set of links and a cross-link pivotally connected to said offset arm and to the outboard link of said first set of links, maintain said loading platform out of contact with the vehicle when the loading platform is away from rest position interior of said vehicle. The vehicle includes a raising and lowering mechanism coupled to the linkage system.
REFERENCES:
patent: 4273498 (1981-06-01), Dickhart et al.
patent: 4325668 (1982-04-01), Julian et al.
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