| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of securing snow column shearing force and simultaneously improving draining performance. SOLUTION: A second small groove is formed on a groove wall of a lug groove along a substantially tire radial direction. Therefore, surface area of the groove wall of the lug groove can be increased and frictional force to snow on the groove wall can be increased. As a result, snow column shearing force can be increased. A first small groove 20 is formed in substantially parallel to tread on a groove wall of a main groove 12. Therefore, water flowing within the main groove 12 is straightened to reduce flow resistance. As a result, draining performance can be improved. |
