US 12,263,703 B2
Tire
Kenichi Matsumoto, Kanagawa (JP)
Assigned to The Yokohama Rubber Co., LTD., Tokyo (JP)
Appl. No. 17/757,039
Filed by The Yokohama Rubber Co., LTD., Tokyo (JP)
PCT Filed Dec. 7, 2020, PCT No. PCT/JP2020/045393
§ 371(c)(1), (2) Date Jun. 8, 2022,
PCT Pub. No. WO2021/117655, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 2019-225701 (JP), filed on Dec. 13, 2019.
Prior Publication US 2023/0020227 A1, Jan. 19, 2023
Int. Cl. B60C 11/12 (2006.01); B60C 11/03 (2006.01); B60C 11/13 (2006.01)
CPC B60C 11/1281 (2013.01) [B60C 11/0304 (2013.01); B60C 11/1263 (2013.01); B60C 11/1392 (2013.01); B60C 2011/0348 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A tire comprising a tread pattern in a tread portion, the tread pattern comprising:
a first circumferential main groove and a second circumferential main groove extending in a tire circumferential direction and disposed at an interval in a tire width direction;
a plurality of first sipes extending in the tire width direction within a region of a first land portion between the first circumferential main groove and the second circumferential main groove and disposed at intervals in the tire circumferential direction;
a first chamfered surface having a tread surface of the first land portion inclined toward the first circumferential main groove in an end portion in the tire width direction on a first circumferential main groove side of the first land portion, the first chamfered surface being provided in plurality in the tire circumferential direction, and the first sipes opening to the plurality of the first chamfered surfaces without reaching a groove wall of the first circumferential main groove;
a plurality of second sipes extending in the tire width direction within a region of a second land portion located on an opposite side of the region of the first land portion with respect to the second circumferential main groove and disposed at intervals in the tire circumferential direction; and
a second chamfered surface having a tread surface of the second land portion inclined toward the second circumferential main groove in an end portion in the tire width direction on a second circumferential main groove side of the second land portion, the second chamfered surface being provided in plurality in the tire circumferential direction, and the second sipes opening to the plurality of the second chamfered surfaces without reaching a groove wall of the second circumferential main groove;
a length in the tire circumferential direction of the first chamfered surface and a length in the tire circumferential direction of the second chamfered surface being greater than a length in the tire width direction of the first chamfered surface and a length in the tire width direction of the second chamfered surface; wherein
each of the first chamfered surface and the second chamfered surface has a substantially triangular shape that decreases in length in the tire width direction from one side in the tire circumferential direction to an other side in the tire circumferential direction.