VEHICLE WITH AUXILIARY POWER DEVICE

摘要

PROBLEM TO BE SOLVED: To easily perform miniaturization and weight reduction by simplifying a constitution of a human power drive part and an auxiliary motive power drive part without generating reduction of use feeling. SOLUTION: The vehicle with auxiliary power device is provided with a crank shaft attached with pedal cranks at both ends; a cylindrical hollow member provided on an outer periphery of the crank shaft and having one end connected to the crank shaft; a motive power transmission member having one end connected to the other end of the hollow member through a one-way power transmission member; a human power drive part having a drive sprocket integrally fitted to the other end of the motive power transmission member and engaged with a chain; a human power drive force detection part provided on an outer periphery of the hollow member and detecting the human drive force given to the crank shaft; and an auxiliary motive power drive part having an auxiliary motive power sprocket engaged with the chain and a motor connected to the auxiliary motive power sprocket through a second one-way power transmission member. COPYRIGHT: (C)2007,JPO&INPIT