DRIVING FORCE TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a driving force transmission device of which the structure is simple and which can change over transmission and non-transmission of the driving force from a pulley to a rotating shaft with a compact and firm constitution and directly transmits the driving force of a motor to the rotating shaft during non-transmission. SOLUTION: In the driving force transmission device, with a simple constitution using a one-way clutch 20 instead of an electromagnetic clutch, the driving force from the motor 33 can be transmitted to the rotating shaft 1 when an engine is stopped and the driving force of the engine can be transmitted to the rotating shaft 1 when the engine is operated. Also, the pulley 2 is supported against a connecting part 11 and a fixed side member 26 with the first and the second two ball bearings 21, 30 arranged adjacently in the axial direction at the first and the second inner cylinder parts 6, 7 in a manner of clamping the opening part 5 of the pulley 2 respectively.