| 摘要 |
PURPOSE:To decrease noise by forming noise baffles having required height through providing circumferential ribs crossing transverse grooves in edge zones. CONSTITUTION:In edge zones 2 formed on a tire, noise baffles 13 are provided by forming a bulge extending in the circumferencial direction crossing transverse grooves 12. A height (h) of this noise baffle 13 is set so as to be 25 to 75 % of depth (d) of the transverse grooves 12. Its width is set to be about 5 mm. By this constitution, tire noise can be reduced. |
