| 摘要 |
PURPOSE:To accelerate the attenuation speed of vehicle surging and improve driving performance by making the surface pattern of a tred section consist of an aggregate of a number of independent blocks whose circumference is enclosed by grooves. CONSTITUTION:A pattern consisting of an aggregate of a number of independent blocks 1a is formed on the surface of a tred section 1. Each independent blocks 1a permit their circumference to be enclosed by the longitudinal groove 1l of the circumferential direction of a tire and the groove 1t which crosses the circumferential direction of the tire. Besides, supposing that the height from the bottom of the groove 1t of the independent blocks 1a is H, the surface area of a ground surface is S, and the cross-sectional secondary moment of a shaft which passes through the center of the ground surface figure in the grounded state, which is parallel to this ground surface, and which intersects with the circumferential direction of the tire at right angles is It, each independent blocks 1a are constructed so that the It/SH<2> value is 0.2 to 1.0. |
