Abstract: The suspension comprises at least one lower arm (14, 18; 42; 14) connected (24, 34; 24) to the vehicle body and at least one upper link (16; 58; 60, 62; 64; 66; 16, 68) connected (30; 63; 67; 30,71) to the vehicle body (20). The lower arm (14, 18; 42; 14) carries at least two substantially blade-like flexible members (22, 23; 22, 23, 25), which are connected (36, 37; 36, 37, 39) to the wheel carrier of the wheel (12) and the planes of which intersect along one common axis (T1) of predetermined orientation defining a first shear axis of the suspension. The at least one lower arm (14, 18; 42; 14) is configured so as to define a second shear axis (T2) of predetermined orientation acting in series with the first axis (T1), in such a manner that when the wheel carrier is subject to an external force acting in a substantially horizontal plane the displacement of the wheel carrier (12) results from the combination of the rotations of the wheel carrier about the two shear axes (T1, T2).

Abstract: The suspension comprises a first, a second and a third rod-like connection member (10, 11, 12), each of which has a first (22, 13, 15) and a second point of articulation (23, 14, 16) to the wheel-carrier (1) and to the vehicle structure, respectively, and is arranged to control one degree of freedom of translation (t, t1, t2) along an axis (y, y1, y2) substantially passing through its own points of articulation. The first connection member (10) is arranged to control also a degree of freedom (r1) of rotation about its own axis (y) and a degree of freedom (r2) of rotation about a direction (z) substantially perpendicular to its own axis (y).

Abstract: In a motor-vehicle independent suspension system, an arm interposed between a respective wheel carrier and the vehicle body comprises at least two flexible beam-like elements in the form of blades which are articulated to the wheel carrier and to the body by means of bushes and are interconnected by at least one torsionally stiff longitudinal tubular element. The inertial characteristics of the cross-sections of the blades are such that the blades are compliant with respect to bending in a direction substantially perpendicular to their axis. By virtue of their inherent flexibility, the blades provide the arm with a third, structural degree of freedom with respect to a shear axis having a predetermined orientation.