Is a
Patent attributes
Patent Applicant
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masahiro Yamanaka0
Toshio Tetsuka0
Yoshiaki Nanko0
Date of Patent
March 1, 2005
0Patent Application Number
094749160
Date Filed
December 29, 1999
0Patent Citations Received
Patent 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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