Patent ID: 6371269
Filing Date: 2002-04-16
Classification: F16D

Abstract:
A thrust plate subassembly, comprising:a housing fixable to a flywheel for joint rotation about an axis of rotation; a pressure plate arranged essentially fixedly in terms of rotation in the housing and axially displaceable relative to the housing; a force accumulator supported on the housing and on the pressure plate so as to press the pressure plate in a direction of a side of the housing which is provided for connection to the flywheel; a wear-adjusting device arranged in a support path of the force accumulator between the force accumulator and one component of the housing and the pressure plate and having at least one adjusting element displaceable for wear compensation and prestressed in a wear-adjusting direction; at least one play indicator arrangement for detecting wear of friction linings of a clutch disk clampable between the pressure plate and the flywheel, the play indicator arrangement comprising: a blocking/detection element mounted on the one component and prestressed with a blocking portion against the wear-adjusting device so as to act upon the wear-adjusting device in order to prevent movement of the at least one wear-adjusting element in the wear-adjusting direction; and a detection portion that is bringable into interaction with an other component displaceable relative to the one component on the occurrence of wear for detecting the wear, on the occurrence of wear the blocking/detection element being capable of being brought, as a result of the interaction with the other component, into a position for releasing the at least one adjusting element for purposes of movement in the wear-adjusting direction; a detaining element configured and arranged so that when the blocking/detection element is brought into a position for releasing the at least one adjusting element, the blocking/detection element is capable of being detained against movement in its prestressing direction; and resetting means for bringing the wear-adjusting device into a position which corresponds to a state of lower wear.