Abstract: A suspension system for a trailer or the like wherein the trailer comprises a pair of longitudinally extending frame members having a body mounted thereon. Spaced-apart front and rear axles are disposed beneath the frame members in a transverse relationship thereto and have ground engaging wheels on the ends thereof. The suspension system operatively secures each of the frame members to the axle. Each of the suspension systems comprises front and rear leaf springs mounted in a tandem relationship one behind the other with the forward end of the front leaf spring being secured to one frame member and the rearward end of the rear leaf spring being secured to the same frame member. The yoke interconnects the adjacent ends of the leaf springs and has an air suspension system secured thereto. The air suspension system is operatively connected to the body of the trailer.

Abstract: A suspension system is described which interconnects each of the longitudinally extending frame members of a truck or the like to a transversely extending axle housing positioned therebelow. Each of the suspension systems comprises a leaf spring assembly connected to the associated frame member forwardly of the axle housing. The leaf spring assembly is connected, intermediate its ends, to the axle housing. A box-like support is positioned at the rearward end of each of the leaf spring assemblies and has its forward end receiving the rearward end of the associated leaf spring assembly. The rearward end of the support has the lower end of an air spring mounted thereon. The upper end of the air spring engages a plate which extends laterally from a bracket secured to the associated frame member. The rearward end of the leaf spring assembly is pivotally secured to the upper intermediate portion of the support forwardly of the air spring.