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1. (WO2018179756) PNEUMATIC TIRE

Pub. No.:    WO/2018/179756    International Application No.:    PCT/JP2018/002291
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Jan 26 00:59:59 CET 2018
IPC: B60C 11/03
B60C 11/13
Applicants: THE YOKOHAMA RUBBER CO., LTD.
横浜ゴム株式会社
Inventors: KATO Yoshitaka
加藤 義隆
Title: PNEUMATIC TIRE
Abstract:
Provided is a pneumatic tire that can realize, at high levels, both traction performance and a low heat-generating property. The pneumatic tire is equipped with a tread section, a side wall section, and a bead section, wherein: a plurality of lug main grooves 11 are formed in the tread section 1; the lug main grooves 11 are symmetrically inclined on both sides of a tire equator; an inclination angle α of the lug main grooves 11 with respect to a tire width direction lies in the range 15° ≤ α ≤ 45°; a plurality of shoulder inclined grooves 12, which connect the lug main grooves 11 to each other, are formed in the tread section 1; the shoulder inclined grooves 12 are inclined in a direction opposite to that of the lug main grooves 11; a center line of each shoulder inclined groove 12 intersects the lug main grooves 11 on both sides thereof at two intersection points P1 and P2; the difference between distances L1, L2 of the intersection points P1, P2 from the tire equator satisfies a relationship TW × 0.03 ≤ ׀L1 - L2 ׀ ≤ TW × 0.2 with respect to a tread width TW; an average value of the distances L1, L2 satisfies a relationship TW × 0.15 ≤ (L1 + L2)/2 ≤ TW × 0.35 with respect to the tread width TW; and a groove area ratio of the tread section 1 lies in the range 0.4-0.7.