Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1988-10-18
1990-06-05
Lindsey, Rodney M.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
74489, 745022, 74527, 74531, G05G 900
Patent
active
049303686
ABSTRACT:
A speed-change operating device for a bicycle includes an operating lever for actuating a derailleur, the operating lever being supported rotatably through a lever shaft to a base member adapted to be supported on the bicycle. A friction mechanism applies to the lever an adjustable rotational resistance against a bias force of a return spring associated with the derailleur. A positioning mechanism includes a positioning member having a plurality of engaging portions for precisely setting the respective speed change stages of the derailleur and an engaging member engageable with at least one of the engaging portions. An operating mechanism selects between an operating mode and a non-operating mode of the positioning mechanism so that the positioning mechanism can be placed in a non-operating mode, when desired, with the speed-change operation being performed in such non-operating mode only with the friction mechanism resisting the return spring.
REFERENCES:
patent: 2429383 (1947-10-01), Arens
patent: 3031035 (1962-04-01), Tomita
patent: 3180166 (1965-04-01), Fox
patent: 3352173 (1967-11-01), Freeland
patent: 3406587 (1968-10-01), Brilando et al.
patent: 3481217 (1969-12-01), Maeda
patent: 3595351 (1971-07-01), Ishida
patent: 3662618 (1972-05-01), Kroll et al.
patent: 3915029 (1975-10-01), Shimada
patent: 4189954 (1980-02-01), Nakamura et al.
patent: 4232564 (1980-11-01), Yamasaki
patent: 4325267 (1982-04-01), Kojima
patent: 4343201 (1982-08-01), Shimano
patent: 4440040 (1984-04-01), Kittle et al.
patent: 4454784 (1984-06-01), Shimano
patent: 4470823 (1984-09-01), Shimano
patent: 4504250 (1985-03-01), Juy
patent: 4548092 (1985-10-01), Strong, Jr.
Lindsey Rodney M.
Shimano Industrial Company Limited
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