US 12,214,622 B2
Pneumatic tire
Toyoaki Endo, Kanagawa (JP)
Assigned to The Yokohama Rubber Co., LTD., Tokyo (JP)
Appl. No. 17/310,749
Filed by The Yokohama Rubber Co., LTD., Tokyo (JP)
PCT Filed Feb. 21, 2020, PCT No. PCT/JP2020/007187
§ 371(c)(1), (2) Date Aug. 20, 2021,
PCT Pub. No. WO2020/171226, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 2019-030383 (JP), filed on Feb. 22, 2019; application No. 2019-069804 (JP), filed on Apr. 1, 2019; application No. 2019-113862 (JP), filed on Jun. 19, 2019; and application No. 2019-114134 (JP), filed on Jun. 19, 2019.
Prior Publication US 2022/0105757 A1, Apr. 7, 2022
Int. Cl. B60C 11/03 (2006.01); B60C 11/12 (2006.01); B60C 11/13 (2006.01)
CPC B60C 11/0306 (2013.01) [B60C 11/0311 (2013.01); B60C 11/12 (2013.01); B60C 11/1204 (2013.01); B60C 11/1218 (2013.01); B60C 11/1236 (2013.01); B60C 11/1259 (2013.01); B60C 11/1263 (2013.01); B60C 11/1369 (2013.01); B60C 2011/0341 (2013.01); B60C 2011/0346 (2013.01); B60C 2011/0358 (2013.01); B60C 2011/0367 (2013.01); B60C 2011/0388 (2013.01); B60C 2011/1213 (2013.01); B60C 2011/1227 (2013.01); B60C 2011/1295 (2013.01); B60C 2011/133 (2013.01); B60C 2011/1338 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A pneumatic tire, comprising
a tread pattern, the tread pattern comprising
three or more circumferential main grooves extending in a tire circumferential direction;
a land portion defined by two of the circumferential main grooves of the three or more circumferential main grooves;
a plurality of lug grooves provided in the land portion; and
a sipe provided in the land portion and provided between the lug grooves that are adjacent,
an edge on an outer side of the land portion in a tire width direction having a zigzag shape with recesses/protrusions that has a position periodically changing in the tire width direction, an edge on an inner side of the land portion in the tire width direction having a straight shape;
the sipe being a through sipe extending continuously from the edge on the outer side in the tire width direction to the edge on the inner side in the tire width direction;
the sipe having a Z-shape with two bent portions;
a ratio of a distance in the tire width direction between a bent portion that is a closer bent portion of the two bent portions to a center line, the center line passing through a midpoint position of the land portion in the tire width direction, and the center line to a width of the land portion in the tire width direction being 0 or more and 0.40 or less; and
two or more of the sipe are provided between the lug grooves that are adjacent.