Patent ID: 7350794
Filing Date: 2008-04-01
Classification: B60G,Y10T

Abstract:
1. A rear suspension apparatus for a high speed vehicle body having a first and a second driven ground engaging wheel, said apparatus comprising: a first truck arm having a first and a second end, said first end of said first arm being connected to the body of the vehicle at a first fixed location; a second truck arm having a first and a second extremity, said first extremity of said second arm being connected to the body of the vehicle at a second fixed location; a drive axle having a first and a second side, said second end of said first arm being secured adjacent to said first side of said axle, said second extremity of said second arm being secured adjacent to said second side of said axle such that said axle is supported by said arms so that a first plane extending through said first and second sides of said axle is disposed spaced and parallel relative to a second plane extending through said first and said second locations; said first truck arm being fabricated from a material having a first hardness; and said second truck arm being fabricated from a material having a second hardness such that when the first ground engaging wheel which is drivingly connected to said first side of said axle is driven and the second ground engaging wheel which is drivingly connected to said second side of said axle is driven, a first force tending to increase pressure between the first ground engaging wheel and the ground and a second force tending to decrease pressure between the second ground engaging wheel and the ground is compensated for by a difference in hardness between said first and second hardness of said respective arms the arrangement being such that when the wheels rotate, a first contact force between the first wheel and the ground substantially equals a second contact force between the second wheel and the ground so that acceleration of the vehicle body is enhanced.