| 摘要 |
PURPOSE: A pneumatic tire improving the durability of a bead part is provided to reduce manufacturing processes and cost by reducing components comprising the bead part, to prevent separation generated at the bead part by minimizing movements of a carcass installed to a bead core in a turn-up method, and accordingly to considerably improve the durability of the bead part. CONSTITUTION: A pneumatic tire the durability of a bead part is composed of a tread, a sidewall, and the bead part. In mounting a carcass to a bead core in a turn-up method, a clamp(4) having self-elasticity is installed to the carcass. The clamp has a circular arc edge that a curved bottom surface(40) contacts with both lateral walls(41,42). The both lateral walls are inclined inward and upper ends of the lateral walls are bent outward. The upper end bent unit of the lateral wall positioned at the outside of the tire in lateral walls extends downward and forms a hook unit(43).
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