Patent ID: 7364176

Claim:
A vehicular anti-vibration structure for use with a vehicle, the structure comprising, a suspension arm supporting a drive wheel; a vehicle-body-side member; and a suspension bushing disposed in a connection between said suspension arm and said vehicle-body-side member and including: a body-side bushing member attached to said vehicle-body-side member; an arm-side bushing member attached to said suspension arm; and a resilient member joining said body-side bushing member and said arm-side bushing member, wherein said resilient member comprises: a first aperture having a first concave surface opposite a second concave surface, and a second aperture having a first concave surface opposite a second concave surface; a radial protrusion of said first aperture extending from said second concave surface of said first aperture toward said first concave surface of said first aperture, and a radial protrusion of said second aperture extending from said second concave surface of said second aperture toward said first concave surface of said second aperture and away from said radial protrusion of said first aperture, wherein said radial protrusion of said first aperture extends further than said radial protrusion of said second aperture; and at least one base end portion extending from said second concave surface of said first aperture toward said first concave surface of said first aperture.