18907426. ELECTRIC POWER-ASSISTED BICYCLE (Yamaha Hatsudoki Kabushiki Kaisha)
ELECTRIC POWER-ASSISTED BICYCLE
Organization Name
Yamaha Hatsudoki Kabushiki Kaisha
Inventor(s)
Masahiro Kuroki of Shizuoka JP
Masahiro Yoshida of Shizuoka JP
ELECTRIC POWER-ASSISTED BICYCLE
This abstract first appeared for US patent application 18907426 titled 'ELECTRIC POWER-ASSISTED BICYCLE
Original Abstract Submitted
A bicycle includes a bottom bracket for supporting a crankshaft, a motor unit, and a battery attached to a down frame part of the frame. The motor unit is located above the bottom bracket and behind the battery, and a lower end of the battery is located below a rotational center of an electric motor.