US 12,083,830 B2
Tire
Koki Nagasawa, Kobe (JP)
Assigned to Sumitomo Rubber Industries, Ltd., Hyogo (JP)
Filed by Sumitomo Rubber Industries, Ltd., Hyogo (JP)
Filed on Jul. 2, 2020, as Appl. No. 16/919,491.
Claims priority of application No. 2019-140019 (JP), filed on Jul. 30, 2019.
Prior Publication US 2021/0031568 A1, Feb. 4, 2021
Int. Cl. B60C 11/12 (2006.01); B60C 11/03 (2006.01)
CPC B60C 11/1236 (2013.01) [B60C 11/1204 (2013.01); B60C 2011/0372 (2013.01); B60C 2011/1245 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A tire comprising a tread portion including:
a plurality of main grooves extending continuously in a tire circumferential direction and a first land region defined by the main grooves, wherein
the first land region includes a first longitudinal edge and a second longitudinal edge, and a ground contacting surface defined between the first longitudinal edge and the second longitudinal edge,
the first land region is provided with two first grooves and a second groove,
each of the first grooves extends so as to connect the first longitudinal edge and the second longitudinal edge,
the second groove extends so as to connect the first longitudinal edge and the second longitudinal edge while intersecting with each of the two first grooves,
the second groove is not connected with other grooves than the first grooves in the ground contacting surface,
the tread portion includes a shoulder main groove arranged outside the first land region in a tire axial direction and a second land region adjacent to the first land region with the shoulder main groove therebetween,
the second land region is provided with a plurality of third grooves each extending from the shoulder main groove to terminate within the second land region, and
in a pair of the first groove and its adjacent one of the third grooves in the tire circumferential direction, a distance in the tire circumferential direction between an end, on a side of the shoulder main groove, of the first groove and an end, on a side of the shoulder main groove, of the third groove is not more than 0.20 times a pitch length in the tire circumferential direction of the third grooves.