Arm for a motor-vehicle independent suspension system and a motor-vehicle independent suspension system comprising the arm

摘要

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.