Title: Suspension system

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Abstract: An improved suspension system for a vehicle having a body-supporting frame and a wheel-supported axle. A pair of air spring units are laterally spaced adjacent the opposite ends of the axle. Each of these air spring units has a lower air spring seat, an air spring body, and an upper air spring seat. The lower air spring seat members are attached to the top to the axle. A top mounting plate secures the upper air spring seat members to the frame. The top mounting plates are sloped inwardly such that their inward side lies at a vertical height lower than their outward side. The center of the upper air spring seat members are laterally offset in an inboard direction with respect to the center of the lower spring seat members. The air spring units have a bump stop member mounted on the lower spring member within the air spring body and the top of the bump stop has at its center an apex with the top surface of the bump stop sloping downwardly therefrom in a plane that extends inboard and a plane that extends outboard. The suspension system also has a lateral rod having its one end pivotally secured to the axle and its other end pivotally secured to the frame. The pivot points at the opposite ends of the lateral rods both lie on a substantially horizontal axis that is below the lower mounting surface of the air springs.


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