Patent ID: 6354419
Filing Date: 2002-03-12
Classification: F16D

Abstract:
A clutch mechanism, comprising a rear cover plate (2), a front pressure plate (1) coupled in rotation to the cover plate (2) while being displaceable axially with respect to the latter, engagement means (3) carried by the pressure plate (1), axially acting clutch engagement means (4, 41) acting between the cover plate (2) and the engagement means (3), and a wear compensating device comprising, firstly, ring means (200) having ramps (32) carried by the pressure plate (1), which are fixed in rotation to an external set of teeth (31) and which are placed between the pressure plate (1) and the engagement means (3) so as to constitute a pressure plate (1, 200) having a variable thickness between its friction face (11) and the engagement means (3), and comprising, secondly, a cassette (30) mounted in a housing (20) of the cover plate (2) and comprising a support member with a worm (106) in cooperation with the set of teeth (31) fixed in rotation to the ramp means (32), the cover plate carries at least one means (201, 201â€², 202) for at least of prebalancing and balancing in order to compensate for imbalance that is due to the cassette (30) of the wear compensating device (30, 200).