Even increment, non-overlapping bicycle transmission

Details Even increment, non-overlapping bicycle transmission Even increment, non-overlapping bicycle transmission

1997-10-06

1999-07-20

Wright, Dirk

Planetary gear transmission systems or components

Nonplanetary variable speed or direction transmission...

475209, 475287, 74362, F16H 3702

Patent

active

059249501

ABSTRACT:
A transmission for transmitting power from an input shaft to a driving wheel and changing rotating speed ratios is disclosed. The transmission comprises a drive shaft, a set of drive gears, a driven shaft, a set of driven gears, one counter gear, one return gear including a hub, a planetary gear and sprocket assembly, and a braking mechanism which alternates the operation of the planetary gear. By alternately engaging the different drive gears, the transmission enables the change of an input rotating speed and by stopping the ring gear in the planetary assembly it further multiplies the change of the input rotating speed. Within a very compact and user-friendly design, the transmission provides a fill range of speeds and enables smooth power flow resulting in the decrease of power loss in pedal propelled vehicles.

REFERENCES:
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patent: 2086563 (1937-07-01), Lewis
patent: 4674346 (1987-06-01), Hiraiwa
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patent: 5099712 (1992-03-01), Douglass
patent: 5443279 (1995-08-01), Nurnberger
patent: 5445573 (1995-08-01), Nurnberger
patent: 5527230 (1996-06-01), Meier-Burkamp
patent: 5556354 (1996-09-01), Meier-Burkamp
patent: 5562563 (1996-10-01), Shoge
patent: 5785625 (1998-07-01), Matsuo et al.

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