Front derailleur for a bicycle

Details Front derailleur for a bicycle Front derailleur for a bicycle

1984-04-02

1985-11-05

Novosad, Stephen J.

Endless belt power transmission systems or components

Belt guide has surface in sliding contact with belt

474 78, 474 80, 474 82, F16H 722, F16H 1108, F16H 718

Patent

active

045511217

ABSTRACT:
A front derailleur for a bicycle having a chain guide with inner and outer plates for shifting a driving chain from one to another of at least two front chain gears. The inner plate has a swollen portion extending toward the outer plate, which urges the chain toward a larger diameter front chain gear and which is disposed between a first chain traversing position where the chain, when in the process of being shifted from a smaller diameter front chain gear to the larger diameter one, traverses the chain guide at an initial stage wherein the chain is raised by contact with the larger diameter chain gear and a second chain traversing position where the chain traverses the chain guide at the final stage wherein the chain is raised by contact with the larger diameter gear before completion of the chain shift operation.

REFERENCES:
patent: 4223562 (1980-09-01), Nagano et al.
patent: 4237743 (1980-12-01), Nagano
patent: 4279605 (1981-07-01), Egami
patent: 4424048 (1984-01-01), Shimano
patent: 4452593 (1984-06-01), Coue 474 80

Affiliated with

Also associated with

Rating

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.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-294238