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
1995-11-02
1997-07-15
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
188 68, 188 823, 188 827, B66D 100
Patent
active
056475772
ABSTRACT:
A braking mechanism for a winch. The braking mechanism includes a sleeve disposed on a motor shaft. The sleeve has slots at intervals which match and align with the slots in the shaft. The sleeve and the shaft are synchronized by a knob that engages the slots. A sprocket coupler attached to the sleeve has channels along its outer surface. Projections are urged out from the channels to mesh with notches in a gear or sprocket that is disposed on the sprocket coupler. The gear has teeth along the outer circumference, a contact surface and a plurality of spaced apart notches along the inner circumference. The notches are designed to have a gradual compressing and an engaging side such that a force is transmitted against the engaging side to turn the gear when the cable is being unwound. A solenoid having a latch coupled thereto is used to arrest the rotation of the gear. Brake pads engage the contact surface to provide a frictional check on gear movement. The arrestment of the gear causes the projections to be forced down into the channels by the compressing side of notches thereby allowing the sprocket to turn within the stationary gear.
REFERENCES:
patent: 2552928 (1951-05-01), Benson
patent: 3006485 (1961-10-01), Martin
patent: 3656637 (1972-04-01), Lynn et al.
patent: 3957164 (1976-05-01), Brown
patent: 4074891 (1978-02-01), Ritter
patent: 4187048 (1980-02-01), Bohlmann
patent: 4239440 (1980-12-01), James
patent: 4252491 (1981-02-01), Hock
patent: 4310098 (1982-01-01), Dirksen
patent: 4725185 (1988-02-01), Neagu
patent: 4806060 (1989-02-01), Molski
patent: 4858855 (1989-08-01), Dalbera
patent: 5090580 (1992-02-01), Nelson
patent: 5119961 (1992-06-01), Runn
patent: 5338147 (1994-08-01), Kucharczyk et al.
patent: 5458318 (1995-10-01), Jussila
patent: 5486082 (1996-01-01), Feldman et al.
Feldman Yakov Z.
Feldman Zeylik Y.
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