Bicycle transmission

Details Bicycle transmission Bicycle transmission

1990-09-24

1991-12-17

Bui, Thuy M.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

Having belt-engaging surfaces on discrete circumferentially...

F16H 5530

Patent

active

050731521

ABSTRACT:
A bicycle transmission comprises a sprocket assembly rotatably coupled to the frame of a bicycle, a chain entrained around a sprocket of the sprocket assembly, a sprocket selector for causing the sprocket assembly to shift the chain from one sprocket to another, a sliding bracket for retractably mounting the sprocket selector to the bicycle frame, an adjustment bracket for finely adjusting the sprocket selector to correspond to the path of the sprocket assembly, and a compensator for engaging and following the chain as it is shifted between sprockets to eliminate any free chain between the compensator and the sprocket. In addition, the bicycle transmission may include a sprocket assembly comprising a stationary sector, a swinging sector hingedly coupled to the stationary sector, and a plurality of load bearing surfaces extending radially outwardly of the stationary sector for taking the load from the swinging sector.

REFERENCES:
patent: 3890847 (1975-06-01), Dian
patent: 3919891 (1975-11-01), Shulmuller et al.
patent: 4041788 (1977-08-01), Nininger, Jr.
patent: 4043214 (1977-08-01), Westlake
patent: 4127038 (1978-11-01), Browning
patent: 4580997 (1986-04-01), Browning et al.
patent: 4592738 (1986-06-01), Nagano
patent: 4605240 (1986-08-01), Clem et al.
patent: 4617006 (1986-10-01), Nagano
patent: 4756704 (1988-07-01), Nagano
patent: 4894046 (1990-01-01), Browning

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