US 4,378,869 AGranted

Clutch disc

AssigneeLuk Lamellen und Kupplungsbau GmbH

InventorOswald Friedmann

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Abstract

A clutch disc, especially for use in friction clutches of motor vehicles, has two subassemblies one of which is held against rotation with respect to the hub and the other of which is held against rotation with respect to the friction linings. The limited angular movement between the two subassemblies is opposed, at least in part, by energy accumulators and friction. An element participating in the generation of friction is a washer-like part which is under the action of axial spring force and is pushed, on the one hand, against a part of the one subassembly and, on the other hand, has a form fit effective against angular movement with a part of the other subassembly. The form-fitting connection is established by engagement of at least one contour which changes in the axial direction in wedge- or cone-fashion and is provided at least on one part forming the form-fitting connection with at least one countercontour provided on at least one other part forming the connection.

Claims14

Dependent claims

A clutch disc, especially for use in friction clutches of motor vehicles, comprising a first subassembly including a rotary hub;

a second subassembly coaxial with said first subassembly, including at least one friction lining and being rotatable within limits relative to said first assembly;
energy accumulator means interposed between and arranged to oppose at least some of the limited angular movement of said subassemblies relative to each other;
and friction generating means interposed between said subassemblies and including a substantially washer-like axially stressed part which reacts against one of said subassemblies and establishes a form fitting connection with the other of said subassemblies, said other subassembly including at least one additional part which establishes said connection with said washer-like part, one of said parts including at least one contour which tapers in the axial direction of said subassemblies and the other of said parts having a countercontour in engagement with said contour to hold such parts against angular movement with reference to one another.

Dependencies are inferred from the claim text.