Patent ID: 8245589

Claim:
A device ( 4 ) for actuating a component mounted to rotate on a shaft ( 3 ), the device comprising: an engaging device ( 4 A, 4 B) that is axially movable along the shaft ( 3 ) within a slot ( 10 B) in the shaft ( 3 ) by at least one electric actuator ( 5 , 17 ) between at least first and second axial positions; the component has a profile and is spaced from the shaft ( 3 ); the engaging device ( 4 A, 4 B) comprises a profile and extends radially through the slot ( 10 B) in the shaft ( 3 ) and, in the first axial position, the profile of the engaging device ( 4 A, 4 B) is located within the component, and the profile of the engaging device ( 4 A, 4 B) engages the profile of the component such that the component is rotationally fixed to the shaft ( 3 ); in the second axial position of the electric actuator ( 5 , 17 ), the profile of the engaging device ( 4 A, 4 B) is disengaged from the profile of the component; the at least one electric actuator ( 5 , 17 ) is arranged at least partially inside and coaxially with the shaft ( 3 ); wherein the electric actuator ( 5 , 17 ) is nonrotatably connected to a housing component ( 7 ) and the shaft ( 3 ) is rotationally supported by the housing component ( 7 ) such that the shaft ( 3 ) rotates with respect to the electric actuator ( 5 , 17 ) and the housing component ( 7 ).