| 摘要 |
PURPOSE:To secure synchronizing capacity which is sufficient to changeover for two wheel-four wheel, by providing a cam device, which moves a clutch ring to a rotor side in a thrustward direction through a relative deviation between the clutch ring and an input shaft, between both. CONSTITUTION:A clutch ring 9 which is supported rotatably by an input shaft 1 and movable and operatable in a thrustward direction is arranged on one side of a chain wheel 5 in the thrustward direction of the same, and a clutch device 11 performing friction joining of a chain wheel 5 and clutch ring 9 by a movement of the clutch ring 9 to a chain wheel 5 side in the thrustward direction is provided between both. A cam device 13 moving the clutch ring 9 to a chain wheel 5 side in the thrustward direction through a relative deviation between the clutch ring 9 and input shaft 1 is provided between both. |
