1976-12-01
1978-05-02
Oresky, Lawrence J.
B60P 144
Patent
active
040870073
ABSTRACT:
An improved cargo platform system of the type particularly adapted to be mounted on the rear of a truck's cargo body. The cargo platform includes, in the preferred embodiment, a first section pivotally mounted along its front edge to a combined elevating and storing mechanism fixed to the cargo body, and a second section pivotally mounted to the first section adjacent the rear edge of that first section. The two platform sections include support structure adapted to maintain the platform sections in substantially coplanar configuration when those sections are horizontally disposed in the elevating attitude. An interconnect structure is provided that maintains the folded platform sections in latched engagement with the elevating and storing mechanism when the folded platform sections are vertically disposed in the storage attitude. When in the vertical storage attitude, the folded cargo platform may be lowered from an upper position where it at least partially closes the cargo body's opening to a lower position beneath the cargo body's bed level so as to provide ingress into and egress from the cargo body. Stop structure mounted to one of the cargo platform and the cargo body interact with the other of the platform and body so as to prevent the cargo platform from touching ground in the lower position. The combined elevating and storing mechanism is of a chain and compounding sprocket type, the sprocket being movable into and out of compounding position with the chain in a path parallel to the plane of the cargo body's opening. The compounding sprocket is permanently fixed to, i.e., not removable from, the cargo body.
REFERENCES:
patent: 303059 (1884-08-01), Sinnamon
patent: 662401 (1900-11-01), Dyer
patent: 3275170 (1966-09-01), MacRae et al.
patent: 3371805 (1968-03-01), Himes
patent: 3734239 (1973-05-01), Martin et al.
patent: 3800915 (1974-04-01), Himes
Leyman Manufacturing Co.
Oresky Lawrence J.
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