Five speed transmission hub for bicycles

Details Five speed transmission hub for bicycles Five speed transmission hub for bicycles

1974-12-06

1976-08-10

Scott, Samuel

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74781B, 192 6A, F16H 344, F16D 6700

Patent

active

039734510

ABSTRACT:
A five-speed transmission hub having a speed transmitting mechanism comprising two sun gears, two pairs of planet gears and two ring gears which are provided with pairs of rotary transmitting pawls of an engageable or disengageable control type, in which a clutch and a control mechanism thereof may be moved for controlling the pawls by the single operation of a lever, thereby making it possible to carry out the five-speed transmission of the hub.

REFERENCES:
patent: 2301852 (1942-11-01), Brown
patent: 2769354 (1956-11-01), Brown
patent: 3366206 (1968-01-01), Shimano
patent: 3432013 (1969-03-01), Matsumoto
patent: 3438283 (1969-04-01), Schwerdhofer
patent: 3670856 (1972-06-01), Segawa

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