Lift apparatus for a ground vehicle

Details Lift apparatus for a ground vehicle Lift apparatus for a ground vehicle

1991-05-28

1993-04-20

Melius, Terry Lee

Harvesters

Raking and bundling

56432, 100 88, A01D 3900

Patent

active

052031535

ABSTRACT:
A lift apparatus for raising and lowering a ground vehicle. A pair of transversely opposite frame members are interconnected at their lower end portions by a transversely extended crank axle. A pair of four-bar parallelogram linkages are located on either side of the vehicle and each of which includes a lever plate which supports a ground wheel of the vehicle. An upper link pivotally interconnects the lever plate to the associated frame member. A lower link is pivotally attached at one end to the lever plate and is secured at its other end to the crank axle, thereby forming a crank arm. A hydraulic cylinder is interconnected between each of the lever plates and the associated frame member. Extension and retraction of the cylinders raises and lowers the vehicle.

REFERENCES:
patent: 3063226 (1962-11-01), Pfauser
patent: 3646735 (1972-03-01), Fritz
patent: 4172354 (1979-10-01), Vermeer et al.
patent: 4669257 (1987-06-01), Rossato et al.

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