Patent ID: 7364000

Claim:
A suspension apparatus of a vehicle comprising: a base end portion of a swing arm pivotally attached to a vehicle body so as to freely oscillate, a wheel rotatably supported to a leading end portion of the swing arm; a first link pivotally attached to a portion between the base end portion and the leading end portion of the swing arm, a second link pivotally attached to a position which is below a pivot point to which the base end portion of the swing arm is pivotally attached in the vehicle body, the first link and the second link being pivotally attached; one end of a cushion unit is pivotally attached to the vehicle body, and another end of the cushion unit is pivotally attached to one of the first link and the second link, wherein the first link or the second link comprises an expandable link, and the expandable link is positionable in an expandable position and is energized in a contracting direction, the expandable link having a check valve for bypassing extension direction fluid damping force generating means during compression of the link, the expandable link being installed such that it exerts an active contracting force tending to urge the swing arm down when the swing arm is movable towards the ground due to reduction of an upward acting road surface force.