Patent ID: 11884109
Assignee: THE YOKOHAMA RUBBER CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A pneumatic tire comprising: first and second circumferential main grooves extending in a tire circumferential direction; and a pair of shoulder land portions and one row of a center land portion defined by the first and second circumferential main grooves,
the center land portion comprising: first and second inclined lug grooves extending at an incline with respect to the tire circumferential direction; a pair of first center blocks defined by the first and second inclined lug grooves and disposed adjacent in a tire lateral direction; and two or more second center blocks defined by the first and second inclined lug grooves and disposed adjacent in the tire lateral direction,
the pair of first center blocks and the two or more second center blocks being alternately arranged in the tire circumferential direction to form a block row of the center land portion, and
the block row of the center land portion being obtained by coupling in a row in the tire circumferential direction and in a zigzag shape via coupling grooves each comprising a groove bottom portion shallower than the first and second inclined lug grooves; wherein
the pair of first center blocks are coupled together via a first coupling groove of the coupling grooves, the two or more second center blocks are coupled together via a second coupling groove of the coupling grooves, and a first center block included in the first center blocks and defined by the first circumferential main groove is coupled, via a third coupling groove of the coupling grooves, to a second center block included in the second center blocks and defined by the first circumferential main groove, forming a first block unit, and
the second center block that is included in the second center blocks forming the first block unit and that is defined by the second circumferential main groove is coupled, via a fourth coupling groove of the coupling grooves, to the first center block that is included in the pair of first center blocks forming a second block unit different from the first block unit and that is defined by the second circumferential main groove, coupling adjacent block units together.