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:
Jan. 02, 1979
Filed:
Apr. 19, 1977
Masashi Nagano, Sakai, JP;
Hideaki Fujimoto, Sakai, JP;
Shimano Industrial Company Limited, Osaka, JP;
Abstract
A derailleur for a bicycle, which comprises a base member, a movable member and two linkage members carrying the movable member therewith in the relation of being swingingly movable with respect to the base member, a control member swinging independently from the movable member, a pair of plates for energy-storing, which sandwich therebetween one of the linkage members and cooperate with the control member through an engageable projection thereof and a positioning and maintaining member provided between the control member and one of the base member, movable member and two linkage members for positioning the driving chain guide cages with respect to any one of a plurality of sprockets whereby the speed change stage can preliminarily be selected when the bicycle is at a standstill or while running when not pedalling.