Front derailleur

Details Front derailleur Front derailleur

1978-02-21

1980-04-29

Byers, Jr., Nile C.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

280236, B62M 912, B62M 2500, F16H 1108

Patent

active

041999975

ABSTRACT:
A front derailleur for a bicycle, which is used for switching a driving chain to at least two sprockets provided at a crank, comprises a fitting member fixed to the bicycle frame extending substantially vertically of the bicycle body, a speed-change mechanism having a chain guide and connected to the fitting member, a first adjusting device for adjusting the chain guide in its position with respect to each of the sprockets in radial direction thereof, a second adjusting device for adjusting an angle of the line extending longitudinally of the chain guide with respect to the axis of each of the sprockets, and a holding device for fixing a support of the shifting mechanism at a desirable position on a fitting face of the fitting member, the fitting member being fixed non-movably at a given position of the bicycle frame with the shifting mechanism being adjusted by being moved longitudinally of the bicycle frame and on a plane perpendicular thereto, so that the chain guide may be positioned most properly with respect to each of the sprockets.

REFERENCES:
patent: 628743 (1899-07-01), Biggs
patent: 2697975 (1954-12-01), Buhr
patent: 3992054 (1976-11-01), Campagnolo
patent: 4030374 (1977-06-01), Isobe

Affiliated with

Also associated with

Rating

Front derailleur 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Front derailleur will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1679170