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
1987-04-07
1988-10-18
Bui, Thuy M.
Endless belt power transmission systems or components
Control for variable input to output speed-ratio
Including belt shiftable axially from one to another surface...
474 82, F16H 900
Patent
active
047784369
ABSTRACT:
A derailleur is provided which includes a linkage mechanism including a fixing member, a chain guide for guiding the driving chain relative to a gear assembly, and a linkage device. The chain guide has an inner guide plate and an outer guide plate which are (1) generally parallel to one another, (2) adapted to be oriented perpendicular to the axis of the gear assembly and (3) extend in a longitudinal dimension which is adapted to be oriented longitudinally of the bicycle when the derailluer is mounted on the bicycle. The linkage device supports the chain guide to the fixing member so that the chain guide is movable axially with respect to the gear assembly. The linkage device has one end pivotably supported to the fixing member by a first pivot shaft and another end pivotably supported to the chain guide by a second pivot shaft. The first pivot shaft and the second pivot shaft both extend obliquely relative to (1) the longitudinal dimension of the inner and outer guide plates and (2) a plane generally parallel to the inner and outer guide plates. The rear ends of the first and second pivot shafts are disposed closer than their front ends to a central plane of the bicycle.
REFERENCES:
patent: 4279605 (1981-07-01), Egami
patent: 4543078 (1985-09-01), Coue
Bui Thuy M.
Shimano Industrial Company Limited
LandOfFree
Front derailleur for a bicycle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Front derailleur for a bicycle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Front derailleur for a bicycle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1192474