Patent ID: 9085212
Filing Date: 2015-07-21
Classification: B60G

Abstract:
1. A suspension assembly for supporting a longitudinally extending vehicle frame rail, comprising: a frame hanger having a frame attachment portion adapted for mounting to the vehicle frame rail; an axle attachment member mounted to an end of a first vehicle axle; a first control arm having a first end mounted to, and extending from, a first frame hanger boss positioned on the frame hanger, and a second end mounted to the axle attachment member by clamping a pair of U-shaped bolts over a first transverse bar pin bushing assembly; a second control arm having a first end mounted to a second frame hanger boss positioned on the frame hanger, and a second end mounted to the axle attachment member by clamping the pair of U-shaped bolts over a second transverse bar pin bushing assembly; wherein the second control arm extends from a centerline of the first control arm at an angle alpha so that the first control arm and the second control arm are not parallel to each other; wherein the angle alpha is from about 9 degrees to about 23 degrees; wherein the first control arm has a centerline that extends from the first end of the first control arm to the second end of the first control arm; wherein the second control arm has a centerline that extends from the first end of the second control arm to the second end of the second control arm; wherein the centerline of the first control arm and the centerline of the second control arm extend to intersect at a point that is at a virtual center of rotation; wherein the virtual center of rotation is located from about 35 inches to about 50 inches from the centerline of the first vehicle axle; wherein a centerline of the first vehicle axle is positioned at a distance D from a centerline of a second vehicle axle, and the virtual center of rotation is positioned at a distance that is 77% to 91% of distance D from the first axle.