SUPPORTING DEVICE OF FRICTION DRIVE MECHANISM

摘要

PROBLEM TO BE SOLVED: To provide a supporting device to prevent degradation of the drive force and the tire service life by supporting a drive mechanism with high rigidity for the reaction force of the drive torque and with low rigidity for the positional deviation in the axial direction and the horizontal deviation of a tire to realize the uniform pressure applied to both side surfaces of the tire when using the drive mechanism which holds both side surfaces of the tire between two drive rollers provided on two shafts parallel to each other and is driven by the friction force for an electric-assisted bicycle or an electric wheel chair or the like. SOLUTION: A drive mechanism side supporting member and a vehicle body side supporting member are connected to each other by two parallel links or leaf springs disposed parallel to the drive shaft in the direction of the plane perpendicular the axis of the tire, and the drive is movably supported parallel to the deviation in the axial direction or the horizontal deviation of the tire.