Patent ID: 6167931
Filing Date: 2001-01-02
Classification: B60C,Y10T

Abstract:
An inflation-free tire structure for use on light duty vehicles, comprising a crude tire, a pair of wheel discs and a bearing, each said wheel disc having a central hole with a plurality of bolt holes disposed around a periphery of said central hole and said bearing being disposed through said central holes of said wheel discs in assembly, wherein said crude tire includes a superficial layer, a hard buffer layer and a super hard inner layer extending from an outer surface to an inner surface with varied thickness and hardness layer by layer, between said superficial layer and said hard buffer layer is disposed an outer radial ply, a middle radial ply is disposed between said hard buffer layer and said super hard inner layer, and on the inner side of said super hard inner layer is disposed an inner radial ply, said outer radial ply is led over and wound about wire beads disposed at each rim of said crude tire and further extends to a lower position of each side wall of said tire, said middle radial ply is led over and wound about said wire beads and further extends to a middle position of each said side wall of said tire, said inner radial ply is led over and wound about said wire beads and further extends to an upper position of each said side wall of said tire whereby said side walls of said tire are reinforced sufficiently to permit said side walls to sustain heavy loads without easy deformation.