Implements or apparatus for applying pushing or pulling force – Single throw lever – Mechanically actuated
Patent
1985-03-01
1985-10-29
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Single throw lever
Mechanically actuated
B66F 322
Patent
active
045497214
ABSTRACT:
In the jack of the invention a chassis member of a small garden tractor, riding lawn mower or like vehicle is engaged by the free ends of a transversely spaced apart set of lifter arms pivoted at their opposite ends on the upper end of an upstanding end stand carried adjacent one end of a base frame of a sufficient longitudinal span to inhibit tilting upon the application of a load to the ends of the lifter arms. Lifting force is applied to the lifter arms by an upwardly extending screw actuated scissors jack seated at its lower end on the base frame and pivotally connected at its upper end to a lifter bar bridging between the lifter arms inwardly of their free ends through a pivotable connecting link forming with the scissors jack an expandable toggle linkage. The end of each lifter arm is preferably longitudinally bifurcated and an adapter is preferably supplied therefor for engagement with different configurations of chassis members, the adapter being so designed as to be wedged in place on the lifter arm end by the weight of the load being lifted.
REFERENCES:
patent: 3451655 (1969-06-01), Scott
patent: 3741524 (1973-06-01), Morgan et al.
patent: 3892132 (1975-01-01), Coton
patent: 4314691 (1982-02-01), Sato
Daniel William J.
Watson Robert C.
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