Transmission mechanism for gymnastic bicycle

Endless belt power transmission systems or components – Control for variable input to output speed-ratio

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474 88, 272 73, F16H 904

Patent

active

047054930

ABSTRACT:
An improved transmission mechanism for a gymnastic bicycle, in which the loaded fly wheel is mounted on the same shaft of the driving wheel, being in parallel with the same. The mechanism also comprises a set of transmission wheels so as to have the rotation speed ratio between the driving wheel and the loaded fly wheel reached 1:9. This transmission mechanism not only can obtain a high speed exercise result, but also can reduce the dimensions of the loaded fly wheel, and can improve the form of the bicycle, reduce the length of the transmission mechanism, and reduce the whole length of the gymnastic bicycle as well.

REFERENCES:
patent: 2753722 (1956-07-01), DeGrave
patent: 2828845 (1958-04-01), Thornton
patent: 3129601 (1964-04-01), Edwards
patent: 3979964 (1976-09-01), McCordall
patent: 4188030 (1980-02-01), Hooper
patent: 4358105 (1982-11-01), Sweeney, Jr.

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