Transmission apparatus of a electrical bicycle

Details Transmission apparatus of a electrical bicycle Transmission apparatus of a electrical bicycle

1994-10-05

1996-01-30

Focarino, Margaret A.

Motor vehicles

Special wheel base

Having only two wheels

2802884, B62K 1110

Patent

active

054874424

ABSTRACT:
A transmission apparatus is used in an electrical bicycle which includes a power switch, a rear wheel and a hub in the rear wheel. The transmission apparatus of the electrical bicycle includes an upper transmission set including a speed-reducing motor connected to a drive gear which is meshed to a driven gear, a middle transmission set including an upper rod, a lower rod, and a universal joint connected therebetween, where the upper rod is connected to the driven gear, and a lower transmission set including a first bevel gear extended from the lower rod, a second bevel gear meshing with the first bevel gear, a tube extended from the second bevel gear and received in the hub of the rear wheel, and at least one unidirectional needle bearing positioned between the hub and the extended tube allowing the extended tube to drive the hub to rotate thus moving the rear wheel forward yet not allowing the hub to drive the extended tube to rotate. When the power switch is turned on, the speed-reducing motor is energized to rotate, thus driving the rear wheel to move forward via transmission through the drive gear, the driven gear, the upper rod, the universal joint, the lower rod, the first bevel gear, the second bevel gear, the extended tube, the unidirectional bearing, and the hub.

REFERENCES:
patent: 5368122 (1994-11-01), Chou

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