Self-locking differential gear

Details Self-locking differential gear Self-locking differential gear

1989-11-02

1991-10-22

Herrmann, Allan D.

Planetary gear transmission systems or components

Differential planetary gearing

Bevel gear differential

475231, 192 93A, E16H 145

Patent

active

050591606

ABSTRACT:
A self-locking differential gear includes a gear carrier on which two crown wheels are journalled and a clutch disposed between each crown wheel and the gear carrier to selectively render a corresponding axle shaft rotatable with the gear carrier. Each crown wheel is comprised of a ring wheel rotatable with an axle shaft and a ring gear in meshing engagement with the plant gears. A clutch operating device includes first and second engagement members shiftable angularly relative to each other and being respectively rotatable with the ring gear and the corresponding axle shaft. The engagement members are operative to engage a corresponding clutch when shifted angularly with respect to each other in at least one of the two directions of rotation of the corresponding axle shaft, thereby providing for an effective locking of the differential gear even on the occurrence of a significant difference in the torque being transferred from each axle shaft.

REFERENCES:
patent: 3012449 (1961-12-01), Stockwell
patent: 3330169 (1967-07-01), Carrico et al.
patent: 3397595 (1968-08-01), Roach
patent: 3438282 (1969-04-01), Thornton
patent: 3512430 (1970-05-01), Sutherland
patent: 3546968 (1970-12-01), Altmann
patent: 4719817 (1988-01-01), Azuma
patent: 4860869 (1989-08-01), Hall, III

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