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
1988-08-31
1989-11-07
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
048788848
ABSTRACT:
In a rear derailleur of the type including an articulated parallelogram joint, the axes of articulation of the two connecting rods of the articulated parallelogram to the upper body of the derailleur are inclined to the longitudinal plane of the bicycle in the position of mounting of the derailleur on the bicycle. These axes are also arranged with one outwardly of and higher than the other so that the plane containing them is also inclined to the axis of the rear wheel of the bicycle. It is possible to arrange for the lower body of the derailleur to be displaced when the chain is derailed, the chain transmission wheel being kept at a substantially constant distance from the sprocket which is engaged by the chain from time to time.
REFERENCES:
patent: 4241617 (1980-12-01), Nagano et al.
patent: 4267744 (1981-05-01), Yamasaki
patent: 4322209 (1982-03-01), Shimano
patent: 4362523 (1982-12-01), Huret
patent: 4403978 (1983-09-01), Huret
patent: 4500302 (1985-02-01), Crepin
patent: 4699605 (1987-10-01), Jona
patent: 4731045 (1988-03-01), Nagano
Bui Thuy M.
Campagnolo S.p.A.
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