Patent ID: 11958316
Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 16:
17. The tire according to claim 1, wherein
the tread portion is provided with at least two circumferential grooves extending continuously in a zigzag manner in a tire circumferential direction, each circumferential groove comprising first inclined elements inclined in a first direction with respect to the tire circumferential direction, second inclined elements inclined in a second direction opposite to the first direction with respect to the tire circumferential direction, and intersections where the first inclined elements and second inclined elements intersect,
each of the circumferential grooves comprises a groove bottom and a pair of groove walls extending from the groove bottom toward the ground contact surface,
a plurality of lateral grooves connects some of the intersections of one of the at least two circumferential grooves with some of the intersections of the other one of the at least two circumferential grooves to form a plurality of blocks having a hexagonal ground contact surface, each of the blocks having a pair of corners protruding outwardly in a block-width direction at respective intersections of the at least two circumferential grooves where the lateral grooves are not connected,
the intersections where the lateral grooves are not connected are provided with a second protrusion that projects outwardly in the tire radial direction from the groove bottom and is separated from the pair of groove walls, and
each second protrusion is bent to protrude outwardly in the block-width direction along the respective corner of each block.