Belt driving apparatus for bicycle

Details Belt driving apparatus for bicycle Belt driving apparatus for bicycle

1987-05-14

1988-09-06

Bui, Thuy M.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

745942, 474112, F16H 1500

Patent

active

047689986

ABSTRACT:
A belt driving apparatus for a bicycle is disclosed wherein a driving gear has an outer gear over which is trained a toothed belt to impart rotational force to the bicycle rear wheel. An inner gear disposed within the outer gear includes teeth along its outer periphery meshing with teeth formed on the inner periphery of a crank gear disposed between the inner and outer gears. The crank gear is mounted on a crank shaft.

REFERENCES:
patent: 631208 (1899-08-01), Frazeur
patent: 4412828 (1983-11-01), Darby
patent: 4599079 (1986-07-01), Chappell

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