Patent ID: 6916037
Filing Date: 2005-07-12
Classification: B60G

Abstract:
1. A vehicle suspension comprising: a vehicle frame having a forward end, a rearward end and opposite sides; a pair of levers carried by the frame intermediate the ends of the frame at opposite sides of the frame, each lever being pivotally mounted with respect to the frame for swinging movement on an axis intermediate opposite ends of the lever extending transverse to the frame; a pair of beams, one extending forward from one of the levers and the other extending forward from the other lever, each of said forward-extending beams having a pivot connection with the respective lever forward of the lever axis and having a support for a forward axle; a pair of beams, one extending rearward from one of the levers and the other extending rearward from the other lever, each of said rearward-extending beams having a pivot connection with the respective lever rearward of the lever axis and having a support for a rearward axle; a pair of forward springs each interposed between a respective forward-extending beam and the frame; a pair of rearward springs each interposed between a respective rearward-extending beam and the frame; a pair of torque arms carried by the frame forward of the forward-extending beams, each torque arm having a first pivot connection with a respective beam and a second pivot connection with said frame forward of said first pivot connection with the beam, said torque arms functioning to restrict pivotal movement of the beams about their respective pivot connections with said levers thereby to reduce torsional forces applied to the forward axle.