Friction clutch mechanism, in particular for motor vehicle, comprising a wear take-up device

A Friction clutch mechanism having a cover (52), a pressure plate (51) connected with respect to rotation to the cover (52) whilst being able to move axially with respect thereto, abutment means (14) carried by the pressure plate (51), axially acting in engaging means (53) acting between the cover (52) and the abutment means (14), a wear take-up device comprising on one hand ramp means (54) fixed with respect to rotation to a set of external teeth (59) and placed between the pressure plate (51) and the abutment means (14) carrying the ramp means (54) and on another hand a unit (10) carried by the cover (52) and comprising a worm (63) cooperating with the set of external teeth (59), in which the unit (10) has a support (62, 110, 72) roughly in a U-shape with a web (64, 112, 73) and two lateral wings (65, 66) each provided with a hole (61, 161, 261, 361, 461, 561, 75) for rotatably mounting an assembly comprising the worm (63) on which there is mounted a shaft (67) passing through at least one hole (61, 161, 261, 361, 461, 561) in one of the lateral wings, wherein said lateral wings are inclined relative to a radial line symmetrically disposed there between situated in a plane perpendicular to a rotational axis of the clutch thereby establishing inclination of the worm (63) and shaft (67) relative to a second line (v) situated in said plane and perpendicular to said radial line.