Four-wheel drive vehicle with drive transfer gear assembly

Details Four-wheel drive vehicle with drive transfer gear assembly Four-wheel drive vehicle with drive transfer gear assembly

1975-05-22

1977-09-27

Scott, Samuel

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

747105, F16H 144

Patent

active

040503283

ABSTRACT:
A drive transfer gear assembly for a four-wheel drive truck tractor. The tractor includes a front drive steer axle assembly, a rear drive axle assembly containing the drive transfer gear assembly, and a prime mover drivingly connected to the front and rear drive mechanisms by the drive transfer gear assembly. The front axle assembly includes a rigid axle housing having end sections and a drop center section containing a differential gear set with output gears drivingly connected to wheels pivotally journaled at the outboard ends of the rigid axle housing. The rear axle assembly includes a differential gear set with output gears drivingly connected to the rear wheels, and a drive transfer gear assembly positioned forwardly of the differential gear set. The drive transfer gear assembly includes a torque proportioning planetary gear set, an angled tooth clutch for locking the planetary gear set in response to front wheel spinout, a manual clutch for preventing differentiation of the gears in the planetary gear set, and a torque limiting clutch for preventing overtorque to the front wheel drive mechanism.

REFERENCES:
patent: 2632542 (1953-03-01), Hendrickson
patent: 2791130 (1957-05-01), Boughner
patent: 3648483 (1972-03-01), Garcia
patent: 3780821 (1973-12-01), Prange
patent: 3827520 (1974-08-01), Mueller
patent: 3862667 (1975-01-01), Wolansky

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