Helical spring clutch

Details Helical spring clutch Helical spring clutch

1977-12-05

1980-02-19

Herrmann, Allan D.

192 clutches and power-stop control

Latch operated

Transversely moving transmission member

74 1563, 192 36, 192 81C, F16D 1308

Patent

active

041890400

ABSTRACT:
A normally disengaged helical spring clutch in which a connection between the control sleeve and the endmost one of the coils of the spring that encircle the hub of the driven element prevents that endmost coil from contacting any part of the driven element when the clutch is disengaged, and in which a reduction in diameter of the end portion of the hub of the driving element brings about a more effective torque transmitting connection between the driving and driven elements when the clutch is engaged and, by the same token, increases the shape-restoring force in the coils of the spring that encircle the contiguous end portions of the hubs, and thereby assures rapid and positive disengagement of the spring from the hub of the driven element.

REFERENCES:
patent: 2551739 (1951-05-01), Harlan
patent: 3425526 (1969-02-01), Baer
patent: 3637056 (1972-01-01), Baer
patent: 3648810 (1972-03-01), Weatherby
patent: 3987880 (1976-10-01), Letz et al.

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