Four speed sailboat winch having separate second gear

Details Four speed sailboat winch having separate second gear Four speed sailboat winch having separate second gear

1994-06-07

1999-07-27

Walsh, Donald 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

475 12, B66D 122

Patent

active

059276916

ABSTRACT:
The features of a known auto shifting three speed winch having a drive shaft and rotatable drum are used to provide first, third and fourth gears upon reversal of rotation of the drive shaft. The third and fourth gears use common gearing and the final gear meshed with the drum. A separate drive train is provided for second gear and includes planetary gears having carriers secured to the drum and operating between a sun gear on the shaft and an outer ring gear. Second gear is selected by means of pawls brought into engagement with a ratchet track on the ring gear, with the pawls being connected to torsion springs controlled manually by a lever arrangement. When second gear is engaged, the winch can shift between only second and third, with fourth being overridden.

REFERENCES:
patent: 3927580 (1975-12-01), Fawcett
patent: 3962935 (1976-06-01), Hutton et al.
patent: 4111397 (1978-09-01), Bonassi
patent: 4944195 (1990-07-01), Takahashi et al.
patent: 5370366 (1994-12-01), Ottemann

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