The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 1986
Filed:
May. 26, 1983
Hilmar Gobel, Schwebenried, DE;
Harald Raab, Schweinfurt, DE;
Fichtel & Sachs AG, Schweinfurt, DE;
Abstract
The clutch disc for a motor-vehicle friction clutch has a hub which defines an axis of rotation and from which there projects substantially radially a hub disc so as to be secured against rotation. On the hub there is mounted, so as to be rotatable through a limited angle of rotation, a friction lining carrier which comprises two side parts which are arranged on axially opposite sides of the hub disc and which are non-rotatably connected to each other and to the carrier. In the rotational path between the side parts and the hub disc there are arranged springs which are subjected to pressure during the relative movement of the friction lining carrier and the hub. Axially on both sides of the hub disc friction rings are arranged between the hub disc and the adjacent side parts. Between one of the two friction rings and the adjacent side part there is provided a pressure ring from which there project substantially radially several arms which are stiff in the circumferential direction of the pressure ring. The arms and/or a Belleville spring bias the pressure ring towards the friction ring. The radially external ends of the arms are fastened to the adjacent side part in a play-free rigid manner, for example with separating rivets which fixedly connect the side parts together. The arms are corrugated in the radial direction so that, if the friction rings wear, the pressure ring can be displaced in the axial direction without any change in the contact force occurring despite the rigid fastening of the radially external ends of the arms. Consequently, the frictional force does not change in the event of a load change, even after a prolonged time of operation.