Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yoshiaki Nanko0
Kazuhiro Fujii0
Date of Patent
January 6, 2009
0Patent Application Number
103877780
Date Filed
March 12, 2003
0Patent Primary Examiner
Patent abstract
A drive mechanism for a bicycle transmission assist mechanism includes a crank arm having a drive member. The drive member includes a first abutment facing a forward rotational direction of the crank arm and a non-concave sloped surface facing a rearward rotational direction of the crank arm.
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