US 11,718,129 B2
Pneumatic tire
Takayuki Suzuki, Hiratsuka (JP)
Assigned to The Yokohama Rubber Co., Ltd., Tokyo (JP)
Appl. No. 16/91,506
Filed by The Yokohama Rubber Co., LTD., Tokyo (JP)
PCT Filed Aug. 30, 2017, PCT No. PCT/JP2017/031127
§ 371(c)(1), (2) Date Oct. 4, 2018,
PCT Pub. No. WO2018/043553, PCT Pub. Date Mar. 8, 2018.
Claims priority of application No. JP2016-170230 (JP), filed on Aug. 31, 2016.
Prior Publication US 2019/0118581 A1, Apr. 25, 2019
Int. Cl. B60C 11/11 (2006.01); B60C 11/12 (2006.01); B60C 11/03 (2006.01); B60C 11/13 (2006.01)
CPC B60C 11/0302 (2013.01) [B60C 11/03 (2013.01); B60C 11/0306 (2013.01); B60C 11/11 (2013.01); B60C 11/12 (2013.01); B60C 11/1204 (2013.01); B60C 11/1236 (2013.01); B60C 11/1259 (2013.01); B60C 11/13 (2013.01); B60C 2011/036 (2013.01); B60C 2011/0346 (2013.01); B60C 2011/0348 (2013.01); B60C 2011/0351 (2013.01); B60C 2011/0362 (2013.01); B60C 2011/0369 (2013.01); B60C 2011/1213 (2013.01); B60C 2011/1245 (2013.01); B60C 2011/1268 (2013.01); B60C 2200/06 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A pneumatic tire, comprising:
a tread surface;
a plurality of circumferential main grooves formed on the tread surface and extending in a tire circumferential direction;
a plurality of lug grooves formed on the tread surface and extending in a tire lateral direction;
a plurality of blocks defined by the lug grooves on both sides in the tire circumferential direction and by the circumferential main grooves on at least one end portion in the tire lateral direction; and
narrow grooves formed in the blocks;
wherein the narrow grooves comprise a plurality of bent portions, a circumferential narrow groove extending in the tire circumferential direction and a lateral narrow groove extending in the tire lateral direction;
each of the blocks includes only a single one of the lateral narrow groove;
the circumferential narrow groove being provided as a plurality of circumferential narrow grooves, and each of the blocks comprises a plurality of intersection points where the plurality of circumferential narrow grooves intersect the lateral narrow groove; and
the circumferential narrow grooves and the lateral narrow groove have a same groove width;
the intersection points are spaced apart from one another in the tire lateral direction; and
each of the circumferential narrow grooves terminate at the intersection points without extending beyond the lateral narrow groove.