초록 ▼

A vehicle suspension system having a central beam formed with a mounting flange on each side thereof. The beam is pivotally mounted to a suspension frame at one end, and rigidly attached to an axle at another end along substantially the entire length of the axle. A control arm is pivotally mounted t

A vehicle suspension system having a central beam formed with a mounting flange on each side thereof. The beam is pivotally mounted to a suspension frame at one end, and rigidly attached to an axle at another end along substantially the entire length of the axle. A control arm is pivotally mounted to each mounting flange at one end, and to the suspension frame at another end whereby the pivot axis of the center beam and the control arms are axially aligned. Additionally, the pivot connection of the central beam provides one or two bushings which may have a constant spring rate, or which may include a spring rate which varies in the vertical and horizontal direction. In a second and third embodiment, a lift mechanism is provided for raising the axle from a ground engaging to a non-ground engaging position.

대표청구항 ▼

[ I claim:] [1.] A suspension system adapted to be mounted to a vehicle frame comprising:an axle;a suspension frame;a central beam having a pair of sides extending between the axle and suspension frame;a control arm extending between the central beam and the suspension frame adjacent each side of th

[ I claim:] [1.] A suspension system adapted to be mounted to a vehicle frame comprising:an axle;a suspension frame;a central beam having a pair of sides extending between the axle and suspension frame;a control arm extending between the central beam and the suspension frame adjacent each side of the central beam;at least one air spring adapted to be positioned intermediate the central beam and the vehicle frame; andat least one hanger bracket adapted for extending from the vehicle frame and for supporting the suspension system.