Patent ID: 6360799
Filing Date: 2002-03-26
Classification: B60C,Y10T

Abstract:
A pneumatic run-flat tire comprising a tread portion, a pair of sidewall portions connecting to both side ends of the tread portion and extending inward in a radial direction of the tire, a pair of bead portions each arranged at an inner peripheral side of the sidewall portion, and at least one carcass ply toroidally extending between a pair of bead cores embedded in the respective bead portion and turned up around the bead core from an inside toward outside in the radial direction, in which a reinforcing rubber having substantially a crescent shape at its lateral section is disposed at an inside of the sidewall portion and a cord reinforcing layer containing at least one cord extending in a direction of approximately 90Â° with respect to a radial line segment is disposed in at least a bead portion.