Motor vehicles – Having four wheels driven – With manually operated means for disengaging drive to one or...
Patent
1980-02-19
1982-06-15
Song, Robert R.
Motor vehicles
Having four wheels driven
With manually operated means for disengaging drive to one or...
74391, 74789, 180 70R, 192 89A, B60K 1726
Patent
active
043345905
ABSTRACT:
In a wheel drive mechanism adapted to produce high torque, low speed power to the wheel through a gearing system that includes a sun gear and a plurality of planetary pinion gears meshed therewith, a mechanism for disengaging the sun gear to ready the vehicle for high speed travel over a highway. The sun gear is supported on a drive shaft that has an elongated splined portion so that the sun gear can be moved axially into a position at which it is disengaged from the planetary pinion gears. A spring biases the sun gear into engagement with the planetary pinion gears and there is mechanism for controllably sliding the sun gear along the splined shaft portion against the spring. The mechanism is accessible from the exterior of the wheel hub, is fast acting and provides for locking the sun gear in either its engaged position or disengaged position.
REFERENCES:
patent: 3459070 (1969-08-01), Holdeman
patent: 3753479 (1973-08-01), Williams
patent: 4043226 (1977-08-01), Buuck
patent: 4116320 (1978-09-01), Quilliam
Bud Antle Inc.
McGiehan Donn
Song Robert R.
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