TORSION DAMPING DEVICE, IN PARTICULAR A FRICTION CLUTCH PLATE ESPECIALLY FOR A MOTOR VEHICLE

摘要

This relates to a torsion damper device having two coaxial parts mounted for rotation relative to one another, within the limits of a determined angular movement, against the action of springs. The torsion damper device includes in addition at least one locking means which is sensitive to the angular movement between the two parts and which is movable reversibly between a position in which it is inoperative and gives full freedom of action to the springs and a position in which it effects the direct supporting of one part (A) on the part and puts these springs out of action. The torsion damper device is applicable in particular to clutch plate assemblies for motor vehicles.