A driving unit for use in an electric assist bicycle with reduced size as measured in an axial direction of the crankshaft is provided. A driving unit 50 may be used in an electric assist bicycle 10. The driving unit 50 includes a motor 60, a first transmission gear 84 and a driven gear 104. Out of the motor 60, first transmission gear 84 and driven gear 104, a first component 104 is a component with the largest diameter as viewed in an axial direction of the crankshaft 54, and a second component 60 is a component with the second largest diameter. A substrate 150 is located between the first and second components 104 and 60 as measured in an axial direction of the crankshaft 54.
Driving unit and electric assist bicycle
Antriebseinheit und elektrisch unterstütztes Fahrrad
Unité d'entraînement et bicyclette à direction assistée
2019-07-17
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |