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
1990-04-03
1991-04-23
Britts, Ramon S.
Endless belt power transmission systems or components
Control for variable input to output speed-ratio
Including belt shiftable axially from one to another surface...
280238, 74469, 74493, 74537, 745022, B62M 2500
Patent
active
050096290
ABSTRACT:
A shift lever assembly for use in a bicycle wherein a wire connected at its one end to a derailleur is wound up or paid out to operate the derailleur. The assembly comprises a lever pivot fixed to the handlebar of the bicycle; a shift lever having a base-end boss portion rotatably supported by one end of the pivot and an arm portion extending from the boss portion; wire winder separate from the lever and rotatably supported by the pivot; a lever-coupled member provided between the boss portion and the winder and supported by the pivot so as to be rotatable with the winder; and a clutch for transmitting the rotation of the shift lever to the lever-coupled member. The shift lever is so biased by a spring as to return to a neutral position for starting rotation toward the wire winding direction and the wire paying-out direction. The clutch transmits to the lever-coupled member the rotation of the lever from the neutral position through a desired angle but does not transmit to the lever-coupled member the rotation of the lever to the neutral position.
REFERENCES:
patent: 4580997 (1986-04-01), Browning et al.
patent: 4690662 (1987-09-01), Nagano
patent: 4768395 (1988-09-01), Tagawa
patent: 4828535 (1989-05-01), Sinoquet
patent: 4885951 (1989-12-01), Descenclos et al.
patent: 4920818 (1990-05-01), Nagano
Britts Ramon S.
Eilberg William H.
Maeda Industries, Ltd.
Schoeppel Roger J.
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