Automatic three-speed winch

Details Automatic three-speed winch Automatic three-speed winch

1987-02-02

1987-10-13

Levy, Stuart S.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

74812, 254354, 254355, 254357, F16H 572, B66D 130

Patent

active

046993606

ABSTRACT:
An automatic three-speed winch comprising a base plate (1), a bollard (2) mounted for rotation relative to said base plate and carrying teeth (7) on its inner surface, arranged to cooperate through intermediate gears, with at least one driving gear (5, 6) around a central shaft (14) of the winch. An element (21, 22) is provided, which is mounted for rotation between a first and a second position about the central shaft (4) of the winch, which element carries three shafts (12, 14, 20), with a pair of gears (8, 11; 18, 19; 10, 13) being mounted for rotation about each shaft. The transition between the three different speeds takes place fully automatically by just changing the direction of rotation of the driving gear, without requiring any further operation on the winch.

REFERENCES:
patent: 3145974 (1964-08-01), Short
patent: 3599937 (1971-08-01), Carter
patent: 3670589 (1972-06-01), Carter
patent: 3927580 (1975-12-01), Fawcett
patent: 3931958 (1976-01-01), Hobbs
patent: 3962935 (1976-06-01), Hutton et al.
patent: 3973755 (1976-08-01), Fawcett
patent: 4054266 (1977-10-01), Guangorena
patent: 4111397 (1978-09-01), Bonassi

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