Patent ID: 6182728
Filing Date: 2001-02-06
Classification: B60C

Abstract:
A run flat tire, comprising;a plurality of sidewall reinforcing wedges in each sidewall, at least one said wedge partially overlapping an adjacent wedge in a radial direction, a radially outermost wedge having a higher Shore A hardness than all remaining wedges and a radially innermost wedge having a lower Shore A hardness than all other remaining wedges; andeach of said plurality of wedges diminishing in hardness in a radially inward direction, wherein said tire further comprises a tire bead radially below each sidewall, wherein said radially outermost wedge has a maximum lateral thickness location of from about 75 percent to about 125 percent of the tire sidewall radial length above said tire bead, and wherein said radially innermost wedge has a maximum lateral thickness location of from about 10 percent to about 60 percent of the tire sidewall radial length above said tire bead.