192 clutches and power-stop control – Clutch and brake – Peripheral brake
Patent
1976-02-19
1978-05-09
Wyche, Benjamin W.
192 clutches and power-stop control
Clutch and brake
Peripheral brake
192 26, 192 36, 192 4892, 192105BA, 192DIG2, 64 30R, F16D 6702, F16D 2108
Patent
active
040882101
ABSTRACT:
A coil spring clutch connects a driving hub to a driven sleeve rotatable on the hub and the sleeve drives an output or second driven member through a torque limiting clutch. The spring is readily declutched by arresting rotation of its leading end, as by interposing a stop in the path of an out-turned tang on that end, and is re-engaged by releasing the leading end. Re-engagement is characteristically abrupt and harsh, and the torque-limiting clutch in series with the spring clutch limits torque stress on the spring so that the series assembly is usable in applications which would destroy the spring clutch alone. The torque-limiting clutch may be a fully-releasable centrifugal clutch, in which case, the spring declutching mechanism may be actuated in common with or in response to application of a brake to stop the second driven member, or may be a frictionally-engaged centrifugal clutch or a spring-biased friction clutch. The driven members are desirably mounted on the driving hub in a compact unitary assembly.
REFERENCES:
patent: 3004646 (1961-10-01), Seiden
patent: 3319751 (1967-05-01), Sacchini
patent: 3361165 (1968-01-01), Irgens
patent: 3581853 (1971-01-01), Hoff
patent: 3785465 (1974-01-01), Johansson
patent: 3958680 (1976-05-01), Armbruster et al.
Hoffco Inc.
Wyche Benjamin W.
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