Patent ID: 6877185
Filing Date: 2005-04-12
Classification: B60B,Y10T

Abstract:
1. A caster device for movably supporting a load, said caster device comprising: a wheel for supporting the load; a wheel support having a first and a second extremity, said first extremity of said wheel support supporting said wheel for rotation of said wheel about an axis of rotation, said second extremity of said wheel support defining an aperture, said wheel support having a first surface and a second surface; a support stem having a first and a second end, said support stem extending through said aperture such that said aperture is disposed between said first and said second end of said support stem, said second end of said support stem being connected to the load for supporting the load; a resilient member disposed between said aperture and said second end of said support stem such that said resilient member resiliently cushions the load relative to said wheel; a bearing race secured to said support stem; a plurality of bearings between said bearing race and said second extremity; and a further plurality of bearings disposed between said resilient member and said second extremity.