Patent ID: 6244962
Filing Date: 2001-06-12
Classification: F16F

Abstract:
Torsion damper disposed between two rotating elements, an input element (51) and an output element (61), and having circumferentially acting elastic members (60), two guide washers (52, 53-153) associated with one (51) of the elements and disposed axially on each side of a disc (54) associated with the other one (61) of the elements, the circumferentially acting elastic members (60) having an axis (70) and acting between the two guide washers (52, 53-153) and the disc (54) whilst being placed in windows (64-164, 65-165, 66) placed opposite each other and formed in the guide washers (52, 53-153) and in the disc (54), said windows (64-164, 65-165, 66) having two lateral edges (75, 76) on which the ends of the elastic members (60) are adapted to be in abutment, wherein the lateral edges (75, 76) of each of the said windows (64-164, 65-165, 66) formed respectively in the guide washers (52, 53-153) and in the disc (54) form between them a window angle (67) open towards a radially outside direction, the axis (70) of the elastic members (60) being a non-rectilinear curve with its concavity directed towards the common rotational axis of the input (51) and the output (61) elements, so that bearing faces of the ends of the elastic members (60) form a bearing angle substantially equal to said window angle (67).