Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Including belt shiftable axially from one to another surface...
Patent
1992-11-06
1994-07-12
Bui, Thuy M.
Endless belt power transmission systems or components
Control for variable input to output speed-ratio
Including belt shiftable axially from one to another surface...
F16H 5900
Patent
active
053284143
ABSTRACT:
An electromechanical bicycle transmission (10) comprises an electric motor (16) controlling through a first rigid mechanism (29) the movement of a first element (28) connected through preloaded yielding springs (24,25) to a second movement element (21) through another rigid mechanism (18,19,20) of a sprocket change mechanism member (11) moving to engage a transmission chain (12) opposite a predetermined sprocket of a plurality of coaxial sprockets (13) of different diameters.
REFERENCES:
patent: 3919891 (1975-11-01), Stuhlmuller et al.
patent: 4894046 (1990-01-01), Browning
patent: 4946425 (1990-08-01), Buhlmann
Bui Thuy M.
Societa Italiano Cantene Calibrate Regina S.P.A.
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