发明名称 Double wheel caster for being rotatably mounted on a leg of a transport carrier
摘要 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.
申请公布号 US5144717(A) 申请公布日期 1992.09.08
申请号 US19910691948 申请日期 1991.04.26
申请人 GRACO METAL PRODUCTS, INC. 发明人 SIESHOLTZ, DEVON T.;SAINT, NATHANIEL
分类号 B60B33/00 主分类号 B60B33/00
代理机构 代理人
主权项
地址