Built-in generator for bicycle

Details Built-in generator for bicycle Built-in generator for bicycle

1990-10-23

1992-05-19

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 67R, 310156, H02K 700

Patent

active

051151596

ABSTRACT:
A built-in generator arranged within a hub of a bicycle wheel including a hub member of a wheel rotatably fitted on an axle fixed to a frame of the bicycle, a stationary hollow cylinder fixed to the axle in the hub member, a generating coil unit provided in the stationary hollow cylinder and fixed thereto, a rotor formed integrally with a magnet rotatably provided on the axle, and a planetary transmission device for transmitting rotation of the hub member to the axle at increased speeds. The planetary transmission device is formed of at least one planetary roller device which includes a sun roller integral with the magnet and rotatably provided on the axle, a plurality of planet rollers arranged to be circumscribed on the sun roller, a planet carrier rotatably supporting the planet rollers, and an elastic ring circumscribing on the planet rollers. The planet rollers are in pressure-contact with the elastic ring and the sun roller.

REFERENCES:
patent: 2430705 (1947-11-01), Brown
patent: 2511489 (1950-06-01), Woermbke
patent: 4677328 (1987-06-01), Kumakura
patent: 4986556 (1991-01-01), Hartmann

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