Patent ID: 8276894

Claim:
A wheel suspension system for a vehicle, said wheel suspension system comprising: a mounting base presenting a base surface defining a base plane; a striking base spaced from said mounting base with said striking and mounting bases moveable relative to each other along an arced line of motion; and an insulator integrally formed of microcellular polyurethane with said insulator coupled to and extending from said mounting base for compressing between said mounting base and said striking base when said striking base contacts said insulator during the movement of said mounting base relative to said striking base; said insulator including a shoulder portion coupled to said mounting base; said insulator including an impact portion integral with said shoulder portion and extending at an acute angle relative to said base plane for distributing compressive forces within said insulator; said striking base including a strike surface contacting said insulator during movement of said mounting base relative to said striking base; and said striking base including a lip extending transversely from said striking surface, said lip contacting a portion of a perimeter of said insulator and being spaced from the rest of the perimeter of said insulator when said insulator contacts said striking surface and guiding said insulator during compression of said insulator between said mounting base and said striking base.