Patent ID: 7231842
Filing Date: 2007-06-19
Classification: F16H,G05G,Y10T

Abstract:
1. An actuation device for adjusting a powered control device in the shift direction, the actuation device comprising: an actuator element axially displaceable in a housing by a feed device at least in the shift direction; an emergency actuation arrangement actuatable from outside the housing of the device and connectable in motion with the feed device via a direction-switched coupling device to displace the actuator element in the shift direction; the feed device comprising at least one motor capable of rotating a rotating spindle in an advance rotation direction to axially displace the rotating spindle in at least the shift direction, the rotating spindle connected against relative rotation with a rotating sleeve; and the rotating sleeve being lockable against rotation in a return rotation direction such that the rotating spindle is prevented from moving axially in a direction opposite the shift direction.