Patent ID: 8973729
Filing Date: 2015-03-10
Classification: F16D

Abstract:
1. A coupling device comprising at least one torque transmitting device, which is engagable or disengagable in an axial direction (A) by a lever element and is frictionally engaged in the engaged state, at least one wear compensation device, which has at least one rotatable ramp ring that is clamped by the lever element at least temporarily and which has at least one rotationally mounted spindle drive with a spindle shaft, and said spindle drive acting on the ramp ring, and at least first and second continuously variable free running units arranged on the spindle shaft, which act in different rotational directions, with the first free running unit being designed to rotate the spindle shaft when a wear state of the torque transmitting device is sensed and the second free running unit being designed to prevent a reverse rotation of the spindle shaft.