US 12,337,619 B2
Tire
Ryohei Takemori, Kanagawa (JP)
Assigned to The Yokohama Rubber Co., LTD., Tokyo (JP)
Appl. No. 17/905,388
Filed by The Yokohama Rubber Co., LTD., Tokyo (JP)
PCT Filed Dec. 21, 2020, PCT No. PCT/JP2020/047737
§ 371(c)(1), (2) Date Aug. 31, 2022,
PCT Pub. No. WO2021/176806, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 2020-038217 (JP), filed on Mar. 5, 2020.
Prior Publication US 2023/0061615 A1, Mar. 2, 2023
Int. Cl. B60C 11/03 (2006.01); B60C 11/13 (2006.01)
CPC B60C 11/1323 (2013.01) [B60C 11/0304 (2013.01); B60C 11/0327 (2013.01); B60C 11/1392 (2013.01); B60C 2011/0346 (2013.01); B60C 2011/0348 (2013.01); B60C 2011/0381 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A tire having a designated vehicle mounting direction, a first circumferential main groove, a second circumferential main groove, a third circumferential main groove, and a fourth circumferential main groove being formed from a vehicle mounting inner side toward an outer side, the four circumferential main grooves defining and forming a first land portion, a second land portion, a third land portion, a fourth land portion, and a fifth land portion from the vehicle mounting inner side toward the outer side,
a first chamfered portion to a fourth chamfered portion where tire width direction dimensions change in a tire circumferential direction being formed along respective vehicle mounting outer edges of the first circumferential main groove to the fourth circumferential main groove,
a fifth chamfered portion where tire width direction dimensions change in the tire circumferential direction being formed along a vehicle mounting inner edge of the third circumferential main groove,
a second inclined groove adjacent to a vehicle mounting outermost position of the second chamfered portion being formed, a third inclined groove adjacent to a vehicle mounting outermost position of the third chamfered portion being formed, and
at least one circumferential narrow groove extending in the tire circumferential direction being formed in at least any of the first land portion and the second land portion, wherein
ratios of depths of the first chamfered portion to the fourth chamfered portion to depths of the respective first circumferential main groove to the fourth circumferential main groove are 0.37 or more and 0.50 or less.