Patent ID: 8746428

Claim:
A clutch device ( 1 ) comprising: at least one torque transmission device ( 26 ) engageable and/or disengageable in an axial direction A by a lever element ( 6 ), including a pressure plate ( 4 ) and a counter pressure plate ( 3 ), and forming a friction-locking connection when engaged; at least one wear readjustment device ( 7 ) that includes: at least one rotatable ramp ring ( 8 ) at least temporarily clampable by the lever element ( 6 ); at least one spindle drive ( 9 ) rotatably supported to act on the ramp ring ( 8 ) and including a spindle shaft ( 12 ); at least one wrap spring ( 13 ): wrapped about an exterior surface of the spindle shaft; frictionally engaged with the exterior surface when the transmission device is disengaged; and, including a first end; and, at least one infinitely variable freewheel unit ( 27 ) arranged, in the case of a sensed wear condition of the torque transmission device ( 26 ), to displace the first end of the at least one wrap spring to: disengage the at least one spring from the exterior surface; rotate the spindle shaft ( 12 ) within the at least one spring; and rotate the ramp ring to displace the pressure plate toward the counter pressure plate in axial direction A.