| 摘要 |
PROBLEM TO BE SOLVED: To provide a run-flat tire highly compatible in the run-flat performance and the comfort. SOLUTION: In the run-flat tire 10 comprising a pair of sidewall wedge-shaped inserts 20, a reinforcing belt structure of the tire comprises at least two belt reinforcement plies 22, 24 including crossing codes. The tire is characterized by at least a pair of elastomeric layers 28. A pair of the elastomeric layers 28 are respectively located radially inward of the at least one carcass reinforcing ply 12 and radially outward of each of the sidewall wedge-shaped inserts 20. The elastomeric layers 28 extend from axially inward of an edge of the belt reinforcing structure to at least a midpoint of a sidewall. The elastomeric layers 28 contain rubber composition, which comprises 100 parts by weight of natural rubber, 20-30 phr of silica (carbon black is not included), and 0-20 phr of polyoctenamer. COPYRIGHT: (C)2008,JPO&INPIT |
