Wrap around spring clutch

Details Wrap around spring clutch Wrap around spring clutch

1975-04-23

1976-10-26

Herrmann, Allan D.

192 clutches and power-stop control

Clutch and brake

192 26, 192 36, F16D 4102, F16D 4120, F16D 6702

Patent

active

039878805

ABSTRACT:
A spring clutch for a step drive, such as for form feeds in office machines, comprising drive and driven hubs rotatable about a common axis and having respective axially adjacent parts surrounded by a coil torsion spring which, in an unstressed condition, has a diameter greater than that of the hub parts, the spring having one end anchored for rotation with the drive hub, and the other end coupled to a clutch actuating member through the intermediary of a slip clutch mechanism having a slip torque which is greater than the torque required to wind the coil torsion spring onto the hub parts.

REFERENCES:
patent: 3376963 (1968-04-01), Schaefer
patent: 3425526 (1969-02-01), Baer
patent: 3559781 (1971-02-01), Brunelle
patent: 3648810 (1972-03-01), Weatherby
patent: 3797618 (1974-03-01), Peterson
patent: 3876184 (1975-04-01), Eudy

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