Patent ID: 8381890
Filing Date: 2013-02-26
Classification: F16D

Abstract:
1. A friction clutch with a wear adjuster, said clutch comprising: friction linings interposed between a pressure plate and a pressing plate disposed axially relative to each other and axially movable relative to each other in a closing direction of the friction clutch and spring-loaded relative to each other, the pressing plate acted upon by a lever-type loading device such that the plates can be in contacting engagement by movement of the lever-type loading device toward the pressing plate, a position sensor for determining an axial spacing between friction-lining-engaging surfaces of the pressure plate and of the pressing plate when the plates are pressed against the friction linings in a loaded state, a ramp device for compensating for an incorrect spacing of the plates that is detected by the position sensor that is disposed between the ramp device and the pressing plate, whereby the incorrect spacing in the loaded state of the friction linings is determined and in an unloaded state of the friction linings the incorrect spacing is compensated, wherein the ramp device and the pressing plate are connected with one another in a form lock-up that is released when an incorrect spacing is sensed by the position sensor, and wherein the form lock-up between the pressing plate and the ramp device is formed by a toothed connection arrangement including two radially extending and meshing tooth segments, each tooth segment having multiple teeth that extend radially relative to a clutch axis of rotation and that have respective axially-extending engagement surfaces.