Lever hoist

Details Lever hoist Lever hoist

1997-05-12

1998-06-23

Matecki, Katherine

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

192 95, 254369, B66D 314

Patent

active

057693986

ABSTRACT:
A lever-type hoist comprising a pressure receiving member 6, a press drive member 7 adapted to press-drive the pressure receiving member 6 through friction members 8, 9 and a reverse rotation stop ring 10, and a coil spring 13 interposed between the pressure receiving member and press-drive member, the base engaging portion 13b of coil spring 13 being engaged by an engaging groove 6d of pressure receiving member and the tip engaging portion of coil spring 13 being engaged by an engaging surface 7k of press-drive member, with an inclined surface 7h formed in the wind-up side of the engaging surface 7k.

REFERENCES:
patent: 4469308 (1984-09-01), Nakamura et al.
patent: 5238226 (1993-08-01), Nishimura
patent: 5421553 (1995-06-01), Hashiue
patent: 5472171 (1995-12-01), Nishi et al.
patent: 5575457 (1996-11-01), Inoue et al.

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