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A double wheel caster for being rotatably mounted on a leg of a transport carrier includes a support rod having a center portion and opposite first and second end portions. The center portion of the support rod is rotatably positioned within an opening located in a wheel caster trailing housing. A p

A double wheel caster for being rotatably mounted on a leg of a transport carrier includes a support rod having a center portion and opposite first and second end portions. The center portion of the support rod is rotatably positioned within an opening located in a wheel caster trailing housing. A pair of caster wheels are rotatably positioned on the first and second end portions of the support rod. Each caster wheel has an aperture generally centrally located therethrough and a plurality of fingers extending radially inward and into engagement with the support rod such that the caster wheels are frictionally mounted on the support rod. Upon movement of the transport carrier in a direction which forces one caster wheel to rotate faster than the other, the frictional mounting inhibits the one caster from freely rotating with respect to the other to thereby prevent shimmying.

대표청구항 ▼

A double wheel caster for being rotatably mounted on a leg of a transport carrier comprising: a wheel caster for being mounted on a leg of a transport carrier, said wheel caster including a trailing housing having a generally cylindrical opening extending therethrough at one end thereof; a support r

A double wheel caster for being rotatably mounted on a leg of a transport carrier comprising: a wheel caster for being mounted on a leg of a transport carrier, said wheel caster including a trailing housing having a generally cylindrical opening extending therethrough at one end thereof; a support rod having a center portion and opposite first and second end portions, said opening being complementarily sized for rotatably receiving said center portion of said support rod, said center portion of said support rod being rotatably positioned within said opening located in the wheel caster trailing housing; a first caster wheel having an aperture generally centrally disposed therethrough and rotatably receiving said first end portion of said support rod, said aperture defining a generally cylindrical surface, said first caster wheel being rotatably positioned on said first end portion of said support rod such that a first gap exists between said first end portion of said support rod and said cylindrical surface; first bushing means positioned within said first ga for frictionally engaging said first end portion of said support rod and said cylindrical surface of said first caster wheel; a second caster wheel having an aperture generally centrally disposed therethrough and rotatably receiving said second end portion of said support rod, said second caster wheel aperture defining a generally cylindrical surface, said second caster wheel being rotatably positioned on said second end portion of said support rod such that a second gap exists between said second end portion of said support rod and said cylindrical surface; and second bushing means positioned within said second gap for frictionally engaging said second end portion of said support rod and said cylindrical surface of said second caster wheel, whereby upon movement of said transport carrier said first caster wheel, said second caster wheel and said support rod rotate together with respect to the trailing housing, and upon movement of said transport carrier in a direction which forces one caster wheel to rotate faster than the other, said first and second bushing means frictionally inhibit said one caster wheel from freely rotating with respect to the other to thereby prevent shimmying.