Torsion damper, especially for motor vehicles

A torsion damper comprising:

• a first part;
• a second part;
• means mounting the two said parts coaxially with each other for relative rotation of one with respect to the other:
• and a plurality of circumferentially acting resilient members defining circumferential ends thereof and interposed circumferentially between the two said coaxial parts, the said first coaxial part comprising two annular, radial plates together with an annular spacing element spacing the said radial plates apart and surrounding the said resilient members, and means including the said spacing element fastening the two radial plates together, the said second coaxial part including an annular damper plate disposed between the two said radial plates, with the damper plate having radially projecting arms for engaging on the said resilient members so as to act thereon, the first coaxial part further defining a plurality of stop elements engaging the circumferential ends of the said resilient members, and means coupling the said radial plates to the stop elements for rotation with the latter, wherein the torsion damper further comprises a resilient element circumferentially extending at least one end of each said resilient member, together with means carried by one of the elements selected from the said resilient members and the annular spacing element and defining radial displacement means associated with each said resilient element for permitting radial displacement of the latter, whereby to reduce friction between the resilient element and the spacing element.