Patent ID: 6079538
Filing Date: 2000-06-27
Classification: F16D

Abstract:
Engagement mechanism for a friction clutch, having a hollow-shaped cover (8) with a transversally oriented base (80) and fixing means (81) for fixing the engagement mechanism to a flywheel (1) driving in rotation, a thrust plate (3) having at a front a friction face (30) for cooperation with a clutch friction device (2), elastic tongues (9) for connecting in rotation, with axial mobility, the thrust plate (3) with the cover (8), and, interposed between a rear face (36) of the thrust plate (3) and the base (80) of the cover (8), on the one hand elastically acting engagement means (4, 6) axially forcing the thrust plate (3) in an opposite direction to the base (80) of the cover (8) and on the other hand a disengagement device (7) for counteracting at will an action of the said elastic engagement means (4, 6), wherein said elastic engagement means (4, 6) have two Belleville washers (4, 6) mounted in series between the rear face (36) of the thrust plate and the cover (8), and wherein one (4) of the Belleville washers (4, 6), referred to as the first Belleville washer, is in contact through its external periphery with the thrust plate (3), whilst the other one (6) of the Belleville washers (4, 6), referred to as the second Belleville washer, bears through its external periphery on the cover (8), said washers being inclined in opposite directions, force transmission means (5) being interposed between the internal peripheries of the first (4) and second (6) Belleville washers, the force transmission means (5) being carried by the disengagement device (7).