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
1988-06-16
1989-01-31
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...
F16H 1108
Patent
active
048012874
ABSTRACT:
A rear derailleur for bicycle gears comprises an upper body which can be fixed to the bicycle frame and a lower body carrying chain transmission member and being movable relative to the upper body to bring the chain into selective engagement with a series of sprockets carried by the hub of the rear wheel of the bicycle. The lower body is connected by an articulated parallelogram joint to an intermediate connecting element which is in turn mounted for sliding on guide member carried by the upper body. Connecting rods are provided for univocally correlating the movements of the intermediate element relative to the upper body with the movements of the lower body relative to the intermediate element. In this way, the resulting movement of the lower body relative to the upper body has both a component along the axis of the hub of the rear wheel of the bicycle, and a component radial to that axis.
REFERENCES:
patent: 4507101 (1985-03-01), Nagand
patent: 4626229 (1986-12-01), Nagano
Bui Thuy M.
Campagnolo S.p.A.
LandOfFree
Rear derailer for bicycle gears does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rear derailer for bicycle gears, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rear derailer for bicycle gears will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-175818