| 摘要 |
The invention relates to an actuation device (1) for a clutch of a motor vehicle comprising a rotor (2) rotationally drivable by a drive unit and comprising a slide unit displaceable in the axial direction and which is movably coupled to the rotor (2) by means of a threaded drive (5) having multiple rolling elements (4), wherein, during a rotation of the rotor (2) caused by a first drive force applied by the drive unit within a threaded section (6) of the slide unit, the rolling elements (4) roll away due to an axial displacement of the slide unit, wherein a parking brake unit (3) is provided on the rotor (2) which parking brake unit, in a first position in which the drive unit is located in a non-driven state, automatically fixes the rotor (2) to the threaded section (6) for axial holding of the slide unit; and a clutch with an actuation device (1) of this type. |
