Free-wheeling coupling sensitive to the direction of rotation

Details Free-wheeling coupling sensitive to the direction of rotation Free-wheeling coupling sensitive to the direction of rotation

1994-09-09

1996-08-20

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Automatic

192 38, 192 44, F16D 4108, B60K 2308

Patent

active

055470548

ABSTRACT:
A free-wheeling coupling sensitive to the direction of rotation for a motor vehicle comprises a first ring which constitutes a driven element in a towing mode of the vehicle, a second ring which constitutes a driven element in the towing mode, clamping elements (e.g., rollers) which act between the first and second rings to transfer torque between them in both directions of torque flow, a cage in which the clamping elements are disposed, and a friction element acting between the cage and the second ring. The free-wheeling coupling further comprises a fixed switching ring, a cam rotatably mounted on the cage or the first ring, the cam including a control lever, and a spring which urges the control lever into engagement with the fixed switching ring until there is sufficient centrifugal force to lift the control lever out of engagement with the fixed switching ring. A stop finger fixedly connected to the first ring or to the cage interacts with the cam to limit the relative rotation between the first ring and the cage.

REFERENCES:
patent: 3055471 (1962-09-01), Warn et al.
patent: 3300002 (1967-01-01), Roper
patent: 3406798 (1968-10-01), Curran
patent: 4124085 (1978-11-01), Fogelberg
patent: 4361216 (1982-11-01), Overbeek
patent: 5103950 (1992-04-01), Ito et al.

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