Patent ID: 7354051

Claim:
An independent suspension system for a wheeled vehicle, comprising: a slide guide mounted on a vehicle body of the vehicle, and held against motion in a lateral direction of the vehicle; a slider mounted on the slide guide for motion in a vertical direction of the vehicle against a load imposed thereon; a wheel carrier mounted on the slider, for rotatably mounting thereon a wheel of the vehicle; and a leaf spring extending in a longitudinal direction of the vehicle, and connected between the wheel carrier and the vehicle body, wherein the leaf spring holds the wheel carrier against rotation on an axis of the motion of the slider, wherein the leaf spring is elastically twisted so as to bias, constantly at least while the wheel carrier is subject to a load from a road, the wheel carrier in a direction to positively increase a camber angle of the wheel carrier, so that a load is imposed on the slider to cancel a load that is imposed on the slider so as the cause a friction between the slide guide and the slider.