PCT No. PCT / FR98 / 00698 Sec. 371 Date Dec. 4, 1998 Sec. 102(e) Date Dec. 4, 1998 PCT Filed Apr. 7, 1998 PCT Pub. No. WO98 / 45611 PCT Pub. Date Oct. 15, 1998A
clutch mechanism, in particular for motor vehicles, comprising a cover (8) with a base (80), a
clutch thrust plate (3) with front friction surface (30) co-operating with a
clutch friction (2), and, set between the clutch thrust plate (3) rear surface (36) and the cover (8) base (80), resilient clutch means with axial action (4, 6) axially stressing the clutch thrust plate (3) in a direction opposite to the cover (8) base (80) and a declutching device (7) to counter at will the action of said resilient clutch means (4, 6): the resilient clutch means (4, 6) comprise two Belleville washers (4, 6) series-mounted between the clutch thrust plate (3) and the cover (8), and one (4) of the Belleville washers (4, 6) is in contact at its outer periphery with the clutch thrust plate (3), while the other (6) rests at its outer periphery on the cover (8), said washers (4, 6) sloping inversely, means for transmitting the force (5) carried by the declutching device (7) being incorporated between the inner
peripheral zones of the Belleville washers.