Patent ID: 7172060

Claim:
A pressure plate assembly comprising: a housing which can rotate about an axis of rotation; a pressure plate which can rotate in common with the housing about the axis of rotation and which can move axially with respect to the housing; a force exerting arrangement supported against the housing and the pressure plate for exerting an actuating force on the pressure plate to produce an engaged state; a wear take-up device between the force exerting arrangement and the pressure plate, the wear take-up device comprising at least one circumferentially moveable adjusting element and a pretensioning arrangement which pretensions the adjusting element in an adjusting direction; and a blocking arrangement comprising a blocking element which, as a function of centrifugal force acting on the blocking arrangement, cooperates with the adjusting element to permit or prevent movement of the adjusting element in the adjusting direction, and the blocking element being arranged on the pressure plate, wherein the blocking element is brought into blocking interaction with the adjusting element by centrifugal force, said blocking arrangement further comprising a restoring spring which acts on the blocking element to provide a restoring force urging the blocking element out of blocking interaction with the adjusting element.