Hand-rotatable bicycle gear shift actuator with overshift return

Details Hand-rotatable bicycle gear shift actuator with overshift return Hand-rotatable bicycle gear shift actuator with overshift return

1995-06-30

1997-10-14

Marmor, Charles A.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74489, 745022, 74527, B62K 2304, G05G 506

Patent

active

056760205

ABSTRACT:
A hand-operated shift actuator (16) displaces a derailleur control cable (22). The actuator (16) includes a stationary member (60) that is affixed relative to a bicycle handlebar (44). Rotation of the rotating member (62) causes the control cable (22) to be displaced, thus actuating the derailleur (24) to which the control cable (22) is attached. A plurality of detent positions (104-115) each correspond to a derailleur overshift position. The rotating member (62) is rotatable in a first direction to any of these detent positions (104-114). A spring-loaded overshift corrector (90, 142) urges the rotating member (62) from an overshift position in a second direction to a respective new desired sprocket center position when the rotating member (62) is released by the hand of the rider.

REFERENCES:
patent: 4938733 (1990-07-01), Patterson
patent: 5197927 (1993-03-01), Patterson et al.
patent: 5213005 (1993-05-01), Nagano
patent: 5438889 (1995-08-01), Tagawa
patent: 5476019 (1995-12-01), Cheever et al.
patent: 5524501 (1996-06-01), Patterson et al.
patent: 5588925 (1996-12-01), Arbeiter et al.

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