The invention discloses a bicycle crank. The bicycle crank comprises a crank middle shaft, a first pedal connecting shaft handle, a second pedal connecting shaft handle, a flywheel shaft ring, a first crank middle shaft reinforcing ring and a second crank middle shaft reinforcing ring, wherein the first pedal connecting shaft handle and the second pedal connecting shaft handle are arranged at the two ends of the crank middle shaft respectively, the flywheel shaft ring is arranged in the middle of the crank middle shaft, and the first crank middle shaft reinforcing ring and the second crank middle shaft reinforcing ring are arranged at the two ends of the crank middle shaft. In this way, the bicycle crank is good in deformation resistance and wear resistance and long in service life.
Bicycle crank
2015-05-06
Patent
Elektronische Ressource
Englisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |