| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive force transmission which can suppress a rise of a temperature of an electric motor which operates a clutch.SOLUTION: A drive force transmission 1 comprises: a multi-plate clutch 8 which has an inner clutch plate 80 and an outer clutch plate 81 arranged on a rotation axial line O rotatable relative to each other and friction-engaged with each other by being pressed in the axial direction; an electric motor 51; a cam mechanism 16 which converts the torque of the electric motor 51 to a pressing force for pressing the multi-plate clutch 8; and a cooling fan 218 which generates cooling air for cooling the electric motor 51. The cooling fan 218 rotates in conjunction with the rotation of a rear-wheel side axle shaft 213R which is connected to one clutch plate out of the inner clutch plate 80 and the outer clutch plate 81, in a manner that it is not rotatable relative to the one clutch plate. |
