Torsion damping assembly for friction clutches

Abstract

A torsion damping assembly comprising a first part including a hub and a web radially extending around the hub. The hub and web are coaxial to each other and rotatably mounted with respect to each other against the force of centering springs for predetermined relative angular displacement within limits defined by at least one meshing member, a tooth or a notch, on the hub intermeshing with a complementary notch or tooth on the web. A friction washer is also provided with a meshing member similar to the meshing member on the web and also intermeshing with the complementary meshing member on the hub. The circumferential play between the meshing member on the friction washer and the meshing member on the hub is less than the circumferential play between the meshing member on the web and the meshing member on the hub. Alternatively the meshing member on the friction washer may mesh without circumferential play with the meshing member on the hub. Preferably there are a plurality of uniformly spaced meshing members on the web, hub and friction washer.

Dependencies are inferred from the claim text.