The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 2005
Filed:
Feb. 25, 2004
Yoshiaki Nanko, Sakai, JP;
Yoshiaki Nanko, Sakai, JP;
Shimano, Inc., Osaka, JP;
Abstract
A front derailleur includes a fixed member, a chain guide and a linkage assembly. The fixed member has a mounting portion and a pair of mounting flanges axially spaced from each other. The linkage assembly is coupled between the chain guide and the fixed member to transversely move the chain guide. The linkage assembly includes first, second and third links. The first link is pivotally coupled to the fixed member for rotation about a first axis. The second link is pivotally coupled to the mounting flanges for rotation about a second axis. The third link is coupled to the chain guide and movably coupled to the first and second links to form a four-bar linkage together with the fixed member. The mounting flanges preferably have different axial widths. The second link preferably has a longitudinal dimension of least about 45.0 millimeters.