Bicycle front derailleur

Details Bicycle front derailleur Bicycle front derailleur

2011-01-11

2011-01-11

Mansen, Michael R (Department: 3654)

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Including belt shiftable axially from one to another surface...

C474S082000

Reexamination Certificate

active

07867118

ABSTRACT:
A bicycle front derailleur includes a fixed member, a chain guide and a linkage assembly. The fixed member includes a fixing body and a projection part fixedly coupled together. The fixing body includes a fastening portion with a seat tube reference plane that aligns with a longitudinal center axis of a seat tube when coupled thereto. The projection part has a projecting surface offset axially from the fixing body toward a smallest front chain ring of a bicycle front crankset. The projecting surface has an overall vertical height lying substantially in a single plane measured in a direction parallel to the seat tube reference plane that is greater than 10 millimeters in an area between the seat tube reference plane and 23 millimeters measured perpendicularly and forwardly from the seat tube reference plane.

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Shimano Inc. 2004 Shimano Catalogue; XTR; 1 page.
Shimano Inc.; 2004 Shimano Engineering Drawing of Bottom Bracket Plate of FD-M960-E.

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