Patent ID: 9090297
Filing Date: 2015-07-28
Classification: B62D,B62M

Abstract:
1. A suspension assembly for a tracked vehicle having a chassis and an endless drive track, the suspension assembly having a longitudinal direction and a lateral direction, the suspension assembly comprising: a pair of rails adapted for engagement with the endless drive track, the rails extending in the longitudinal direction; a first suspension arm having an upper end and a lower end, the upper end of the first suspension arm being adapted for pivotally connecting to the chassis about a first lateral axis, the lower end of the first suspension arm being pivotally connected to the rails about a second lateral axis, the first suspension arm extending forwardly and upwardly from the rails; a second suspension arm disposed rearwardly of the first suspension arm, the second suspension arm having an upper end and a lower end, the upper end of the second suspension arm being adapted for pivotally connecting to the chassis about a third lateral axis; a rocker arm having an upper end and a lower end, the lower end of the rocker arm being pivotally connected to the rails about a fourth lateral axis, the upper end of the rocker arm being pivotally connected to the lower end of the second suspension arm about a fifth lateral axis, the second suspension arm extending forwardly and upwardly from the rocker arm; at least one shock absorber connected between the chassis and the rails for biasing the rails away from the chassis, at least a portion the second suspension arm being pivotally connected to the rails about a longitudinally extending axis relative to the rails, the longitudinally extending axis being laterally centered between the rails; and a ball joint pivotally connecting the lower end of the second suspension arm to the upper end of the rocker arm about the fifth lateral axis and the longitudinally extending axis.