| 摘要 |
PROBLEM TO BE SOLVED: To improve steering stability and durability without deteriorating uniformity. SOLUTION: The pneumatic tire comprises a bead core 3, a first carcass ply 1 and a second carcass ply 2 wound around the bead core 3 and forming a toroidal shape, a bead filler 4 disposed in a folded portion of the first ply 1, and a chafer 5 disposed outside of the second carcass ply 2. Tire cross sectional height from a radial direction inside end portion 21 of the chafer 5 to a tread top portion 22 where a tread 6 and a tire equatorial plane C intersect is set to H. Wind-up height to a wind-up end 11 of the first carcass ply 1 is set to H1, and wind-up height to a wind-up end 12 of the second carcass ply 2 is set to H2. The wind-up height H1, H2 is 60-80% of H. Difference t between the wind-up height H1, H2 is 5-15 mm. The 100% modulus of the bead filler 4 is 6.0-10.0 MPa. COPYRIGHT: (C)2008,JPO&INPIT
|
