Patent ID: 8851512

Claim:
A vibration suppression structure adapted for a steering wheel that is rotated about a steering shaft having a longitudinal direction and incorporates an airbag apparatus including an airbag and an inflator for supplying gas to the airbag, the vibration suppression structure comprising: an elastic support portion for elastically supporting the inflator such that the inflator functions as a damper mass of a dynamic damper and the elastic support portion functions as a spring of the dynamic damper, wherein the elastic support portion is formed as a cylinder having an axis extending in the longitudinal direction, at any cross section orthogonal to the axis, the elastic support portion has an outer periphery of the same oval or the same circle and an inner periphery of the same oval or the same circle, when the outer periphery is circular, the inner periphery is oval, and when the inner periphery is circular, the outer periphery is oval.