| 摘要 |
<p>Directional pneumatic tire comprising a tread portion 2, a pair of center circumferential main grooves3 extending on both side of a tire equatorial plane Co, a center land portion 4 between the center circumferential main grooves 3, sipes 5 provided within the center land portion 4, a plurality of v-shaped grooves 11 each provided separately in the circumferential direction of the tire within the center land portion 4, each v-shaped groove 11 having a peak 13 located in a middle area of the center land portion 4, a first inclined portion 14a extending from the peak 13 to one side edge 4Ea of the center land portion 4, and a second inclined portion 14b extending from the peak 13 to the other side edge 4Eb of the center land portion 4, a first inclined sub-groove 15a and a second inclined sub-groove 15b provided between a pair of v-shaped grooves 11.</p> |
