Vibration relief apparatus and magnetic damper mechanism therefor

Abstract

A vibration relief apparatus capable of reducing a frequency at a resonance point, to thereby reduce vibration transmissibility, resulting in improving a feeling in riding in a vehicle during traveling thereof. A suspension unit which is a vibration relief apparatus of the present invention includes coil springs and a torsion bar substantially horizontally arranged with respect to an X-link. The coil springs constitutes a first spring mechanism having negative spring characteristics and the torsion bar constitutes a second spring mechanism having positive spring characteristics. Such configuration permits a spring system constituted by the first and second spring mechanisms to have a spring constant about an equilibrium point set to be about 0. This permits a phase delay to be produced in a low-frequency region, so that the vibration relief apparatus may exhibit enhances vibration absorbing characteristics.

Dependencies are inferred from the claim text.