Power operated gear change assembly for bicycles

Details Power operated gear change assembly for bicycles Power operated gear change assembly for bicycles

1994-06-09

1995-11-28

Schoeppel, Roger J.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Condition responsive

474 81, 474110, F16H 900, F16H 5900

Patent

active

054702771

ABSTRACT:
A power operated gear change assembly for bicycles, which includes a gear change whose derailleur is displaceable by an electric geared motor and associated power supply accumulator, operated through a manual control device or detector for detecting the derailleur displacement, and a control circuit for controlling operation of the electric geared motor. The electric geared motor is directly fitted on the derailleur of the gear change, and the detector includes a transducer device placed in a remote position relative to the derailleur of the gear change and operatively connected thereto through a transmission device. The electric accumulator is rechargeable by means of a dynamo-electric unit incorporated in the derailleur of the gear change.

REFERENCES:
patent: 3863512 (1975-02-01), Crawley
patent: 3919891 (1975-11-01), Stuhlmuller et al.
patent: 4041788 (1977-08-01), Nininger
patent: 4605240 (1986-08-01), Clem et al.
patent: 4946425 (1990-08-01), Buhlmann
patent: 5059158 (1991-10-01), Bellio et al.
patent: 5213548 (1993-05-01), Colbert et al.
patent: 5254044 (1993-10-01), Anderson
patent: 5356348 (1994-10-01), Bellio et al.
patent: 5357177 (1994-10-01), Fey et al.

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