| 摘要 |
PURPOSE:To enhance especially ice/snow travelling performance by providing longitudinal grooves and transverse grooves intersecting each other on a tread part, and forming central block lines and side part block lines, as well as respectively forming respective sipings having specified shapes in respective block lines. CONSTITUTION:In the tread part 2 of a snow tire 1, multiple longitudinal grooves G1, G2... extending to the circumferential direction and multiple transverse grooves gi, gm, go... which extend to the direction that intersects with them are respectively provided, respectively forming a central block line 4 provided in the tire circumferential direction and side part block lines 6 provided along the extreme edges E in the tire axial direction of the tread part 2 in the vicinity of the tire equator C. And, central sipings 7 which extend to the direction that intersects with the tire circumferential direction and bend to the direction of depth are formed in the central block 4. On the other hand, side part sipings 9 substantially having no width in the shape of straight line to the direction of depth are formed in the side blocks 6. |
