| 摘要 |
<p>A pneumatic tire for small passenger vehicles having a pair of bead portions located at the internal periphery of a pair of sidewalls connected to a tread at both its edges, characterized in that the bead core (1) of the bead portion is a mono strand bead core, and the section of the bead core is a close-packed structure unit made of 3 to 20 wires (2); the diameter (D) of the wires is 1.2 to 1.8 mm, and the ratio (H/D) of the distance (H) between the centers of adjacent wires to the diameter (D) of the wires is 1.01 to 1.20; and the sectional configuration of the bead core is such that N(2) = N(1) + 1, where N(1) is the wire number of the first row and N(2) is the wire number of the second row counted from the bead base side. It is possible to improve steering characteristics (manoeuvrability) of such a pneumatic tire for small passenger vehicles by restraining the disorder of uniformity of the tire in the circumferential and longitudinal directions. <IMAGE> <IMAGE></p> |
