Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1981-03-03
1983-06-28
Coe, Philip R.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254378, 188134, B66D 100
Patent
active
043901611
ABSTRACT:
A winch drive and brake mechanism is disclosed featuring a load compensating brake. The brake includes a fixed member and first and second rotary brake members. The first and second brake members are coaxially mounted on a drive shaft in alignment with a cable drum. The first brake member is fixed on the drive shaft. The second brake member is supported on the drive shaft between the first brake member and the fixed member for free rotation and movement axially of the drive shaft toward and away from braking engagement with the fixed member. The first brake member is engageable with the second brake member for axially moving it toward the fixed member into brake engaged position and releasing the second brake member for movement axially away from the fixed member toward a brake released position respectively in response to rotation of the first brake member relative to the second brake member in opposite angular directions. The first brake member is continuously urged by cable load on the drum in one angular direction such that when power is interrupted under any conditions, whatsoever, to the drive shaft, the first brake member rotates relative to the second brake member and axially moves it into engagement with the fixed member to automatically effect brake locking engagement under cable load.
REFERENCES:
patent: 1020014 (1912-03-01), Armington
patent: 1833648 (1931-11-01), Johnson
patent: 2170951 (1939-08-01), Perry
patent: 2493853 (1950-01-01), Bossetta
patent: 3536169 (1970-10-01), Arnold
patent: 3776513 (1973-12-01), Mosley
patent: 3784165 (1974-01-01), Pruitt
patent: 3870129 (1975-03-01), Arnold
patent: 4004780 (1977-01-01), Kuzarov
patent: 4046235 (1977-09-01), Shutt
Coe Philip R.
Stinson Frankie L.
Superwinch, Inc.
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