Patent ID: 11865869
Assignee: THE YOKOHAMA RUBBER CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A pneumatic tire, comprising:
a tread portion extending in a tire circumferential direction and having an annular shape;
a pair of sidewall portions disposed in both sides of the tread portion; and
a pair of bead portions disposed in an inner side of the sidewall portions in a tire radial direction,
a plurality of center blocks being provided in a center region of the tread portion,
the plurality of center blocks being arrayed and forming pairs across inclined grooves that are inclined with respect to a tire circumferential direction,
center blocks in one side of the pairs of the plurality of center blocks extending across a tire equator from one side to an other side of the tire equator, and center blocks in the other side extending across the tire equator from the other side to the one side of the tire equator,
each one of the plurality of center blocks including a cut formed of two wall surfaces connected to each other in a V-shape in a tread contact surface, and
in the tread contact surface, the two wall surfaces including:
a first wall extending at an angle within ±20° with respect to the tire circumferential direction;
a second wall extending at an angle within ±10° with respect to a tire lateral direction; and
in the tread contact surface, an area of a cut region surrounded by the first wall, the second wall, and an extension line of the wall surface provided with the cut being from 10% to 20% of ground contact area of the center block.