Multistage front chain gear for a bicycle

Details Multistage front chain gear for a bicycle Multistage front chain gear for a bicycle

1985-03-12

1986-05-06

Novosad, Stephen J.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

And additional coaxial surface for engaging same belt in...

474161, F16H 5512

Patent

active

045869146

ABSTRACT:
A multistage front chain gear for a bicycle is provided which includes a gear body which is formed of synthetic resin and having at least one larger diameter toothed body and at least one smaller diameter toothed body having different numbers of teeth. First and second contact plates are formed of material having a larger cutting resistance than the synthetic resin used for the gear body. The first contact plate is attached to the outside surface of the larger diameter toothed body, and the second contact plate is attached to the inside surface of the smaller diameter toothed body. As a result, each toothed body is protected from being cut by a driving chain.

REFERENCES:
patent: 3200665 (1965-08-01), Wells
patent: 3651705 (1972-03-01), Bertinetti et al.
patent: 3696685 (1972-10-01), Lampredi
patent: 4453924 (1984-06-01), Sugino

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