Control device of a bicycle gear change

Details Control device of a bicycle gear change Control device of a bicycle gear change

1994-03-18

1996-01-02

Luong, Vinh T.

Machine element or mechanism

Control lever and linkage systems

Hand operated

74489, 74475, 192 4R, F16C 110, G05G 1100

Patent

active

054797764

ABSTRACT:
A control device for the gear change of a bicycle comprises a single operating lever, preferably provided with two distinct arms for the gear change up shifting and down shifting, respectively, to which a ratchet mechanism is associated. The ratchet mechanism comprises a pair of opposed teeth adapted to cooperate with a ratchet wheel which is associated to a control rotor. In the application on a racing bicycle, the control rotor is rotatably mounted around an axis parallel to the longitudinal direction of the bicycle.

REFERENCES:
patent: 3478617 (1969-11-01), Maeda
patent: 4100820 (1978-07-01), Evett
patent: 4132296 (1979-01-01), Evett
patent: 4319673 (1982-03-01), Kojima
patent: 5052241 (1991-10-01), Nagano
patent: 5186071 (1993-02-01), Iwasaki
patent: 5257683 (1993-11-01), Romano
patent: 5361645 (1994-11-01), Feng et al.

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