초록 ▼

A caster supporting weight through a biasing device an elastomeric material, such as polyurethane, to elastomerically support the weight transmitted through the caster. The components are concisely related to each other, the elastic material is protected against damage, including excessive weight su

A caster supporting weight through a biasing device an elastomeric material, such as polyurethane, to elastomerically support the weight transmitted through the caster. The components are concisely related to each other, the elastic material is protected against damage, including excessive weight supporting forces, and in an embodiment of the invention, vertical caster adjustment is possible without affecting its elastomeric weight bearing characteristics.

대표청구항 ▼

1. An elastomerically biased caster comprising, in combination, a support adapted to be mounted upon structure supported by the caster, a caster body mounted upon said support, an elongated tubular housing defined on said caster body having ends and a non-circular inner transverse cross section, an

1. An elastomerically biased caster comprising, in combination, a support adapted to be mounted upon structure supported by the caster, a caster body mounted upon said support, an elongated tubular housing defined on said caster body having ends and a non-circular inner transverse cross section, an exteriorly non-circular core longitudinally extending through said housing, said core having ends, stop projections defined on said arms adapted to engage said caster body upon predetermined movement of said arms toward said caster body, a caster arm having upper and lower ends affixed to each end of said core at said upper end, a caster wheel rotatably interposed between said arms' lower ends, an elastomeric material within said tubular housing closely confirming to the interior configuration of said housing and the exterior configuration of said core in a non-movable surface relationship thereto, said elastomeric material resiliently transferring weight from said support to said caster, said non-circular core comprising a tubular element having a polygonal transverse cross section and an elongated metal insert having a polygonal transverse cross section corresponding to and snugly fitting within said element, said insert having ends extending beyond the length of said tubular housing, said arms' upper end being non-rotatably affixed to said insert ends.