| 摘要 |
FIELD: transport. ^ SUBSTANCE: invention relates to air tire. Pneumatic tire comprises contact sites arranged in tread and formed by dividing tread by grooves. Note that each contact site is provided with narrow grooves in surface contact with contact site soil. Inclination of narrow grooves relative to tire circumference is set larger in end zones located on both sides from central zone in crosswise direction of tire in every contact site compared with central zone. ^ EFFECT: improved performances on ice. ^ 6 cl, 6 dwg |
