| 摘要 |
The present invention provides a pneumatic tire having a bead core embedded in a bead portion of the tire, the bead core being constituted of a strand as a rubber-coated single bead wire wound around the bead portion to be juxtaposed in plural columns in the axial direction and stacked in plural rows in the radial direction to form a torus structure, characterized in that: the bead core as the torus structure is constituted of two columns of the bead wire juxtaposed in the axial direction; a winding-start end and a winding-terminal end of the bead wire are situated at the outermost rows in the radial direction of the corresponding columns thereof, respectively; and at least one of an interval between the winding-start end and an inner peripheral layer adjacent to the winding-start end of the bead wire and an interval between the winding-terminal end and an inner peripheral layer adjacent to the winding-terminal end of the bead wire is larger than any other intervals between two adjacent bead wires of the bead core. |
