A powertrain device for an electric bicycle (10), including a first follower gear (120) receiving power transmitted from a rotation shaft (12A) of a driving motor (12), a first drive gear (130) engaged with the first follower gear (120) and receiving power transmitted from the first follower gear (120), a second follower gear (140) installed on a first gear shaft (131) on which the first drive gear (130) is installed, a second drive gear (160) engaged with the second follower gear (140) and receiving power transmitted from the second follower gear (140), a third follower gear (170) installed on a second gear shaft (161) on which the second drive gear (160) installed thereon, a third drive gear (180) engaged with the third follower gear (170), receiving power, and installed on a pedal shaft (13), and a ratchet guide (240) and additional bearings minimizing torsion load applied to a ratchet (190) disposed between the third drive gear (180) and the pedal shaft (13).
Powertrain device for electric bicycle
Antriebsstrangvorrichtung für ein Elektrofahrrad
Dispositif de transmission pour bicyclette électrique
10.02.2016
Patent
Elektronische Ressource
Englisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |