Friction clutch driven plates.

摘要

A friction clutch driven plate comprises the usual driven hub member comprising splined hub (11) with integral flange (13) and driving member constituted primarily by two side plates (15) and (16) joined by rivets (17) and carrying friction facings (26) and (27). Drive between the driving and driven members is provided by circumferentially directed coil springs (23) arranged in windows (19) and (21) in the side plates and window (22) in the hub flange. In this invention, the windows in the side plates carry spring guide members (24) formed of low-friction plastics material such as acetal resin and these guide members act particularly to support the coil spring against centrifugal force when the driven plate is rotated at speed. The low friction between springs and guide members renders the overall friction between driving and driven members more predictable.