| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire in which uneven abrasion of a shoulder block can be restrained. SOLUTION: A tread part 1 is provided with three or more of block rows 6, 8, 10 composed of blocks demarcated with peripheral grooves 2, 3, 4 and width direction grooves 5, 7, 9. In such an attitude of the tire that an ejection edge of a grounding surface contour line S passes an ejection end 12 of the inside of the shoulder block in the width direction within a grounding surface when the tire filled with air pressure corresponding to the maximum load capacity is loaded with a load equivalent to the maximum load capacity, an angleαmade by a straight line connecting an intersection 13 of the outside edge of the shoulder block in the width direction and the ejection edge of the grounding surface contour line with the ejection end 12 of the inside of the shoulder block in the width direction, and a vertical line dropped from the intersection to a tire equator C is not less than 10 degrees and not more than 45 degrees. Further, in a block side edge of the shoulder block, an angleβmade by the straight line connecting the ejection end 12 of the inside of the width direction with the ejection end 14 of the outside of the width direction and the vertical line dropped from the ejection end 14 of the outside of the width direction to the tire equator C satisfies the relation ofα-10≤β≤α+10. COPYRIGHT: (C)2004,JPO |
