Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tetsu Nonoshita0
Tsukasa Fukuta0
Toyoshi Yoshida0
Date of Patent
May 5, 2009
0Patent Application Number
117041840
Date Filed
February 9, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A crank is provided with a crank axle connecting portion for connecting a crank axle thereto, a pedal connecting portion for connecting a pedal thereto, and a main crank portion positioned between the crank axle connecting portion and the pedal connecting portion. A first insert member is arranged in the crank axle connecting portion, and has an axle attaching part having a crank axle connecting hole and an extended part extending from the axle attaching part toward the pedal connecting portion so as to following along the main crank portion. The crank axle further includes a shell member made of a fiber-reinforced resin that at least partially covers an outside facing surface of the first insert member.
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