US 12,214,621 B2
Pneumatic tire
Kenichi Matsumoto, Hiratsuka (JP)
Assigned to The Yokohama Rubber Co., LTD., Tokyo (JP)
Appl. No. 17/260,211
Filed by The Yokohama Rubber Co., LTD., Tokyo (JP)
PCT Filed Jul. 9, 2019, PCT No. PCT/JP2019/027068
§ 371(c)(1), (2) Date Jan. 13, 2021,
PCT Pub. No. WO2020/013152, PCT Pub. Date Jan. 16, 2020.
Claims priority of application No. 2018-133660 (JP), filed on Jul. 13, 2018.
Prior Publication US 2021/0268842 A1, Sep. 2, 2021
Int. Cl. B60C 11/03 (2006.01); B60C 11/12 (2006.01)
CPC B60C 11/0304 (2013.01) [B60C 11/0306 (2013.01); B60C 11/1236 (2013.01); B60C 11/1259 (2013.01); B60C 11/1272 (2013.01); B60C 2011/0348 (2013.01); B60C 2011/0351 (2013.01); B60C 2011/0353 (2013.01); B60C 2011/0355 (2013.01); B60C 2011/0365 (2013.01); B60C 2011/0367 (2013.01); B60C 2011/0372 (2013.01); B60C 2011/0381 (2013.01); B60C 2011/1209 (2013.01); B60C 2011/1295 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A pneumatic tire comprising a tread pattern in a tread portion,
the tread pattern comprising:
a pair of circumferential grooves extending in a tire circumferential direction; and
a plurality of siped lug grooves extending in a tire width direction between the pair of circumferential grooves and disposed at intervals in the tire circumferential direction;
each of the siped lug grooves comprising:
a lug groove extending from a first circumferential groove of the pair of circumferential grooves and closed within a region between the first circumferential groove and a second circumferential groove differing from the first circumferential groove; and
a sipe extending from a closed end of the lug groove toward the second circumferential groove and directly connected to the second circumferential groove;
the plurality of siped lug grooves comprising at least one first siped lug groove extending while bending with an extension direction of the lug groove differing from an extension direction of the sipe, and at least one second siped lug groove extending linearly with the extension direction of the lug groove aligning with the extension direction of the sipe; wherein
for each of the siped lug grooves, the extension direction of the lug groove and the extension direction of the sipe incline toward a same side in the tire circumferential direction.