Land vehicles – Wheeled – Occupant propelled type
Patent
1986-04-21
1987-11-17
Love, John J.
Land vehicles
Wheeled
Occupant propelled type
74750B, 74760, 74781B, 280260, B62M 108
Patent
active
047069821
ABSTRACT:
A dual range planetary transmission which is located inside the hub of the driving wheel of a pedal powered vehicle such as a front wheel drive bicycle camper. The transmission includes a pedal drive shaft mounted in bearings on the axis of the wheel; a planet-gear-carrier driven by the pedal drive shaft with multiple sets of different size planet gears mounted on bearings in the carrier; a ring gear mounted on a bearing on the planet-gear-carrier, in constant mesh with all the multiple sets of planet gears, with provisions for selectively locking the ring gear against rotation; a sun-gear-carrier mounted on a bearing on the pedal drive shaft with provisions for selectively locking the sun-gear-carrier against rotation; multiple sun gears rotating freely on the sun-gear-carrier with each in constant mesh with one of the multiple sets of planet gears, with provisions for locking any selected one of the sun gears to the sun-gear-carrier; a conventional free-wheel ratchet mechanism driving the wheel hub from the ring gear; and a second conventional free-wheel ratchet mechanism driving the wheel hub from the sun-gear-carrier. When both the ring gear and the sun-gear-carrier are free to rotate, the transmission provides a direct drive. With four sun gears meshing with four sets of planet gears, the transmission provides four low range speeds when the sun gear is locked, and four high range speeds when the ring gear is locked.
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Diederiks, Jr. Everett G.
Love John J.
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