Tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorKenta HOMMA
Life of this patent
Estimating the term…
Abstract
In a tire tread pattern, inclined grooves extend from a starting end in a center region including an equator toward both sides in a width direction and toward the same side in a circumferential direction to a pattern end. A periphery distance from the equator to the pattern end at an outer side in the width direction being 100%, in ranges separated from the starting end by ≤35%, from >35% to ≤50%, from >50% to ≤70% and from >70% to ≤100%, an inclination angle of the inclined grooves relative to the circumferential direction is from >40° to ≤50°, from >50° to ≤65°, from >65° to ≤80°, and from >80° to ≤90°, respectively. A circumferential-direction distance from the starting end to a terminating end of the inclined grooves is 60% to 90% of a width-direction distance.
Claims16
A tire, comprising:
- a tread pattern comprising an inclined groove group in which a plurality of sets of inclined grooves, which extends from a starting end in a center region including a tire equator line toward both sides in a tire width direction and toward a first side in a tire circumferential direction across the tire equator line to a pattern end of a tread portion, is disposed in the tire circumferential direction;
- a periphery distance from the tire equator line to the pattern end at one side in the tire width direction being L, an inclination angle of the inclined grooves with respect to the tire circumferential direction being
- (a) greater than 40 degrees and 50 degrees or less in a first range from the starting end to a position separated in the tire width direction by 35% of the periphery distance L,
- (b) greater than 50 degrees and 65 degrees or less in a second range from an outer side in the tire width direction of the position separated from the tire equator line in the tire width direction by 35% of the periphery distance L to a position separated from the tire equator line in the tire width direction by 50% of the periphery distance L,
- (c) greater than 65 degrees and 80 degrees or less in a third range from an outer side in the tire width direction of the position separated from the tire equator line in the tire width direction by 50% of the periphery distance L to a position separated from the tire equator line in the tire width direction by 70% of the periphery distance L, and
- (d) greater than 80 degrees and 90 degrees or less in a fourth range from an outer side in the tire width direction of the position separated from the tire equator line in the tire width direction by 70% of the periphery distance L to a position separated from the tire equator line in the tire width direction by 100% of the periphery distance L, and
- a circumferential-direction distance along the tire circumferential direction from the starting end to a terminating end of the inclined grooves in the pattern end being from 60% to 90% of a width-direction distance along the tire width direction from the starting end to the terminating end.
Dependencies are inferred from the claim text.