Lever connecting mechanism for hydraulic jacks

Details Lever connecting mechanism for hydraulic jacks Lever connecting mechanism for hydraulic jacks

1988-11-14

1989-07-25

Lindsey, Rodney M.

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Single throw lever

254DIG3, 74481, 74519, 74512, 74523, B60P 148, G05G 1100

Patent

active

048505684

ABSTRACT:
A lever connecting mechanism for a horizontal hydraulic jack with tension rod comprises a vertical pumping rod having a traversed U-shape connecting member fixed thereon for receiving a bar provided on a foot pedal which is pivotally connected to the structure of the hydraulic jack, and a lever member pivotally connected to the structure of the hydraulic jack. The lever member has the same axis of rotation as the one of the foot pedal so that said lever member can be used to drive said foot pedal toward a downward direction. Since the foot pedal and the lever member are individually supported by two springs at their upmost position, the foot pedal can be depressed without affecting the lever member, but however, the downward movement of lever member will cause the foot pedal being depressed also.

REFERENCES:
patent: 3786692 (1974-01-01), Bjork
patent: 3885449 (1975-05-01), Green
patent: 4210314 (1980-07-01), Carroll
patent: 4251056 (1981-02-01), Maniglia
patent: 4656879 (1987-04-01), Jen
patent: 4765593 (1988-08-01), Hung

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