Fichtel & Sachs Ag

Dieter Bernhard

Norbert Ament

Hilmar Gobel

Matthias Fischer

Harald Raab

Franz Hartig

The present invention generally relates to a clutch disc for a friction clutch, in which two identical cover plates are used, each of which has areas with different outside diameters, whereby the area with the larger diameter has the openings for fastening rivets for lining carriers and the openings for the location of balancing rivets, and the areas with the smaller diameter make it possible to have access with a tool for peening the rivet heads from the other side. The individual cover plates are also assembled to one another in mirror inversion.

Clutch disc with balancing rivets

The invention relates to a clutch disk having a torsional vibration damper (19) for motor-vehicle clutches, a delayed friction device (51) being arranged in a space-saving manner radially above a friction ring (45) effective in the load region.

Clutch disk with delayed friction device

Clutch disc for a motor vehicle friction clutch comprises a hub and a disc part enclosing the hub and coupled with predetermined play in rotation but otherwise non-rotatably with the hub. Side discs on axially opposite sides of the disc part form one unit mounted on the hub rotatably through a limited first angle relative to the disc part. The disc part is coupled rotationally elastically with the hub through at least one spring of an idling vibration damper. Several springs of an under-load vibration damper, arranged in windows of the disc part and of the two side discs, couple the side discs rotationally elastically with the disc part. The under-load vibration damper comprises a friction device having two control discs arranged on axially opposite sides of the disc part between the disc part and one each of the two side discs. The control discs are connected non-rotatably with one another. Relative rotation between the control discs and the disc part is limited to a second angle of rotation smaller than the first angle of rotation. At least one of the two control discs comprises at least one radially protruding extension co-operating with one of the springs of the under-load vibration damper.

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Schwebheim, Germany

Dieter Bernhard