Patent ID: 7845614
Filing Date: 2010-12-07
Classification: B60B,B60G,B66F,F16F

Abstract:
1. A shock-absorbing wheel mounting structure comprising: an axial sleeve vertically fixed and mounted on a horizontal jack; a shaft vertically slideably mounted in said axial sleeve, said shaft having a top end extending out of a top side of said axial sleeve, a bottom end connected to a bracket that supports a wheel, and a stop flange extending around the periphery thereof above said bracket; and a compression spring sleeved onto said shaft and stopped between said stop flange of said shaft and an inside wall of said axial sleeve and adapted to impart a downward pressure to said shaft relative to said axial sleeve; wherein said shaft has at least one locating groove extending around the periphery of the top end thereof, and at least one C-shaped retainer respectively fastened to said at least one locating groove outside said axial sleeve to secure said shaft to said axial sleeve.