US 12,337,643 B2
Rear suspension assembly for a vehicle
Alex R. Scheuerell, Wyoming, MN (US); David D. Helgeson, Vadnais Heights, MN (US); and Aaron S. Norton, Oak Grove, MN (US)
Assigned to POLARIS INDUSTRIES INC., Medina, MN (US)
Filed by Polaris Industries Inc., Medina, MN (US)
Filed on Apr. 10, 2024, as Appl. No. 18/631,289.
Application 18/631,289 is a continuation of application No. 17/972,225, filed on Oct. 24, 2022, granted, now 11,958,331.
Claims priority of provisional application 63/282,368, filed on Nov. 23, 2021.
Prior Publication US 2025/0001821 A1, Jan. 2, 2025
Int. Cl. B60G 3/20 (2006.01); B62D 21/11 (2006.01)
CPC B60G 3/20 (2013.01) [B62D 21/11 (2013.01); B60G 2204/148 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A utility vehicle, comprising:
a frame assembly extending longitudinally along a centerline of the utility vehicle;
at least one front ground-engaging member supporting the frame assembly;
at least one rear ground-engaging member supporting the frame assembly; and
a rear suspension assembly operably coupled to the frame assembly and the at least one rear ground-engaging member, the rear suspension assembly comprising:
a trailing arm generally extending longitudinally and operably coupled to the frame assembly and the at least one rear ground-engaging member, the trailing arm including a joint along a longitudinal length of the trailing arm;
an upper radius rod extending in a generally lateral direction relative to the centerline of the utility vehicle and operably coupled to the trailing arm;
a lower radius rod extending in the generally lateral direction relative to the centerline of the utility vehicle and operably coupled to the trailing arm; and
a suspension member configured to control toe of the at least one rear ground-engaging member and operably coupled to the trailing arm and to the frame assembly, the suspension member including a forward end and a rearward end, the forward end being coupled to the trailing arm forward of a knuckle of the utility vehicle.