Lever type hoist having reverse rotation preventive mechanism

Details Lever type hoist having reverse rotation preventive mechanism Lever type hoist having reverse rotation preventive mechanism

1994-01-27

1996-07-16

Stodola, Daniel P.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

254372, 254368, B66D 114

Patent

active

055359884

ABSTRACT:
If the load applied on the load sheave is small, the pressing drive member contacts tightly with the friction members to make secure the braking of rotation of the drive shaft, so that the small load is prevented from moving downward by its own gravity, and moreover the operation wheel is engaged with and held in the rotation limiting member spline-coupled with the drive shaft so as to be free to idle even in a no-load state, and a spring for pressing the operation wheel to the rotation limiting member is inserted between the outer end surface of the operation wheel and the spring retainer held on the drive shaft projecting from the rotation limiting member.

REFERENCES:
patent: 4420144 (1983-12-01), Nishimura
patent: 4768754 (1988-09-01), Nishimura
patent: 5156377 (1992-10-01), Nishimura
patent: 5364073 (1994-11-01), Sell

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