Abstract: A membrane or plate spring clutch on which there is an automatic wear adjustment mechanism, which wear adjustment mechanism takes into consideration only a portion of the wear which has occurred, and guarantees the required application force on the friction linings of the clutch disc, so that the torque transmission capability of the friction clutch remains constant over its entire useful life.

Abstract: A friction clutch with a plate spring and a mechanism to compensate for wear of the friction linings, whereby there is a disengagement element approximately in the form of a membrane spring which exerts a lifting force on the plate spring or the application plate, with the interposition of the wear compensation mechanism. The wear compensation mechanism includes at least one ring-shaped component to which torque is applied by a spring force, and which has inclined partial surfaces on its circumference which engage in corresponding opposite surfaces.

Abstract: A system for engaging or disengaging a friction clutch has at least one drive, which drive is connected to an energy accumulator and is intended to move against the force of a spring mechanism of a friction clutch. The system can have at least one adjusting mechanism for the drive to compensate for the axial shift resulting from the change in position of the spring mechanism due to wear on the friction clutch. This adjusting mechanism can include an actuating mechanism connected to the transfer element. The actuating mechanism can be moved in the direction of motion of the drive, and can include a retaining mechanism which restricts the extension of the actuating mechanism by means of a stop. The retaining mechanism, by means of a retaining force, secures the orientation of the stroke of the actuating mechanism against an axial displacement until an axial shift occurs due to wear of the friction clutch.

Abstract: A motor vehicle friction clutch with a pressure plate which is fastened with the interposition of a clutch disc with friction linings to a flywheel, and which has a common axis of rotation with the flywheel, comprising an application plate located non-rotationally--but so that it can move axially--in a clutch housing, and an application means to apply the application force, is designed so that the amount of work which must be performed by an application means for the engagement and release of the clutch becomes minimal.

Abstract: A friction clutch/flywheel assembly includes a flywheel with a predetermined diametral area designed to hold a preferably cylindrical wall of a basin-shaped clutch housing, so that the clutch housing does not rotate and is also secured against axial movement with respect to the flywheel. The assembly is designed so that there is a clamping device allocated to at least one of the flywheel or the clutch housing, which clamping device is designed to be located in the contact area between the cylindrical wall of the clutch housing and the predetermined diametral area of the flywheel. By means of this clamping device, the flywheel and clutch housing can be held in a non-positive connection with one another.

Abstract: A friction clutch with a cup spring which is actuated by a clutch release element similar to a membrane spring. A compact and simple construction can thereby be achieved with a very flat spring characteristic, whereby the clutch release element can be tuned so that it causes a significant reduction of the clutch release forces.

Abstract: A motor vehicle friction clutch with an automatic adjustment for wear of the friction linings, whereby distributed over the circumference of the pressure plate there are several clearance sensors which act on the thrust plate with the interposition of an adjustment device. Each clearance sensor is thereby mounted in a hole in the thrust plate, so that it can move axially against the force of an adapter sleeve.

Abstract: The present invention generally relates to a friction clutch with automatic compensation for wear inside the pressure plate. For this purpose, between the membrane spring and the pressure plate, there are preferably two sheet metal rings located one axially behind the other, which rings have sections facing one another which sections form a gradient, whereby a torque is applied in opposite directions to the two rings by means of a spring device.

Abstract: In order to secure the flywheel (5) of a motor vehicle friction clutch (3) to the output end of a crankshaft (23) of an internal combustion engine, it is proposed that the flywheel (5) is fastened to the output end of the crankshaft (23) by means of an axially detachable centric clamping arrangement (21). The flywheel (5) is hereby supported on a pipe end (37) of the crankshaft (23). Conical expansion elements (45), which may be axially displaced by means of a centric screw element (43) to generate radial clamping forces, are inserted into the centric cavity formed by the pipe end (37). The screw element (43) is structured in such a way that it may be screwed through the hub (27) of a clutch disc (9) of the friction clutch onto the crankshaft (23) by means of a screw attachment tool (51). The friction clutch (3) may thus be preassembled together with the flywheel (5) to form a structural unit before it is secured to the crankshaft (23) .

Abstract: A pressure plate arrangement (1) for a friction clutch of a motor vehicle is proposed, wherein an adjustment device (19), which automatically compensates for the wear of the friction linings (21), is disposed in the support path between a diaphragm spring (13) and a pressure plate (11), stressed against a flywheel (1) by the diaphragm spring (13) via friction linings (21) of a clutch disk (23). The adjustment device (19) has a pressure path compensating member (31), for example in the form of a radially resilient cone-shaped ring, which automatically compensates for possible play between the diaphragm spring (13) and the pressure plate (11). Distributed in the circumferential direction, a plurality of play transfer devices (37) is axially movably guided and arrested (for example by self-locking). The play transfer devices (37) rest against the flywheel (1) of the clutch housing (9) fixedly connected therewith and have levers (43) which limit the maximal wear compensation path of the compensating member (31).

Abstract: In a pulled-type clutch arrangement, for the release of the clutch, release levers are provided which are connected in their radially outer region with the clutch cover and in a radially middle region articulatedly with the thrust plate. On the abutment face facing the drive plate, in the region of the radially inner ends, the release levers lie against a release ring which is connectable with a traction force transmission part of a clutch release device. In some cases the clutch arrangement avoids the diaphragm springs usually used in pulled-type clutch arrangements, and nonetheless can be operated as pulled-type clutch. The main spring can be formed by a dished spring which is simpler in construction than a diaphragm spring and avoids disadvantages which arise with diaphragm springs for some purposes, especially in heavy-duty clutches. The dished springs can here be supported in a radially outer region on the clutch cover and can act in a radially inner region upon the thrust plate.