Internally accommodated speed change mechanism applicable to a b

Details Internally accommodated speed change mechanism applicable to a b Internally accommodated speed change mechanism applicable to a b

1975-04-17

1978-01-03

Scott, Samuel

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74781B, 74812, F16H 344, F16H 512

Patent

active

040659844

ABSTRACT:
A bicycle speed change mechanism in which five speeds are obtained with mechanism contained internally within the hub of a bicycle wheel. A pair of planetary gear mechanisms are mounted on a hub axle within a hub body, and two separate speed change rods are provided to selectively and separately control operation of the planetary gear mechanisms to obtain five numerically-different drive ratios. The separate speed change rods are manipulated at the control of the bicycle rider to select gear ratios ranging from the lowest to the highest available gear.

REFERENCES:
patent: 3438283 (1969-04-01), Schwerdhofer

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