Patent attributes
A clutch device 2 has a diff case 19 rotatable with drive torque, side gears 11, 13 to which the drive torque is transferred from the diff case 19, a clutch ring 63 held in constant connection to the diff case 19 and axially movable to the side gears 11, 13 to be intermittently coupled thereto, and an electromagnetic actuator 29 operative to axially move the clutch ring 63. The electromagnetic actuator 29 includes an electromagnetic solenoid 25, and a plunger 27 axially movable in response to magnetic force of the electromagnetic solenoid 25 for axially moving the clutch ring 63. The electromagnetic solenoid 25 is disposed on the diff case 19 so as not to relatively move in an axial direction, and the diff case 19 forms a part of a magnetic flux path of the electromagnetic solenoid 25.
