Bicycle hub transmission with a shift key that is axially immova

Details Bicycle hub transmission with a shift key that is axially immova Bicycle hub transmission with a shift key that is axially immova

1999-07-08

2000-07-04

Wright, Dirk

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural drive ratios other than unity

B62M 1114

Patent

active

060831367

ABSTRACT:
A bicycle hub transmission includes an axle, a driving member rotatably supported on the axle, a slave rotatably supported on the axle, and a power transmitting mechanism disposed between the driving member and the slave for communicating rotational force from the driving member to the slave through a plurality of power transmitting paths. A clutch member is rotatably supported and axially movable on the axle for selecting one of the plurality of power transmitting paths of the power transmitting mechanism, and a shift key is provided for moving the clutch member axially. A shift rod is axially movably supported to the axle for moving the shift key axially, and a biasing mechanism is provided for biasing the clutch member toward the shift key. A link is provided for linking the clutch member to the shift key so that the clutch member is substantially axially immovable relative to the shift key. As a result, the shift key always moves with the clutch member.

REFERENCES:
patent: 3908807 (1975-09-01), Ozaki et al.
patent: 3937309 (1976-02-01), Schulz et al.
patent: 4147244 (1979-04-01), Segawa et al.
patent: 4240533 (1980-12-01), Fukui
patent: 4727965 (1988-03-01), Zach et al.
patent: 5882274 (1999-03-01), Shoge
patent: 5928103 (1999-07-01), Shoge
Shimano Bicycle System Components catalog; pp. 115-116 published Apr. 1982.

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