| 摘要 |
PURPOSE: A pneumatic tire with excellent stress dispersibility is provided to prevent the separation of an apex and a carcass, the cause of a large-scale traffic accident, by increasing the stiffness of a tire bead. CONSTITUTION: A pneumatic tire(200) with excellent stress dispersibility includes a carcass ply(250). The carcass ply comprises a main body(251) reaching a bead core(240) of a bead(230) via a side wall(220) from a tread(210), a first wrapping portion(253) connected to the main body to cove the outside of the bead core and extended to the upper end of the outside of an apex(260) toward the outside of the radial direction of a pneumatic tire, and a separation reinforcement portion(255) more extended to cover the inside of the apex from the first wrapping portion.
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