Pneumatic tire with bead composite
AssigneeThe Goodyear Tire & Rubber Company
InventorDavid Charles Poling
Life of this patent
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Abstract
A run-flat tire has a radial carcass reinforcement ply extending through a pair of opposing sidewalls and anchored in opposing bead portions. At least one of the bead portions having a bead heel and a bead toe wherein the bead heel is radially outward and axially inward from the bead toe. At least one of the bead portions has a bead composite and a bead apex therein. The bead composite has a maximum axial width WB, the axial width being measured perpendicular to the tire equatorial plane. The maximum axial width WB is greater than 50% of the maximum axial width W of the at least one bead portion, as measured from the opposing axial sides of the bead portion.
Claims15
A pneumatic radial tire, the tire comprising a radial carcass reinforcement ply, two sidewalls and opposing bead portions wherein the reinforcement ply is anchored in the opposing bead portions, at least one of the bead portions having a bead heel and a bead toe wherein the bead heel is radially outward and axially inward from the bead toe, the at least one of the bead portions comprising a bead composite and a bead apex therein, the bead composite is a matrix of wire embedded in an elastomer, and has a maximum axial width WB of greater than 50% of the maximum axial width W of the at least one bead portion.
Dependencies are inferred from the claim text.