| 摘要 |
A pneumatic tire (10) provided in a rib-like land section (110) thereof with: an air chamber (130A) in which recessed portions (131) are repeated in the circumferential direction of the tire at predetermined pitches; and constriction groove (121) which communicate with the recessed portions (131). A height (H) changes in the circumferential direction of the tire. A bottom surface (132) has substantially the same height as the ground contact surface at a position which is the highest point of the bottom surface (132) which is maximally raised toward the ground contact surface. The volume of the space formed between each constriction groove section (121) and the road surface is less than the volume of the space formed between each recessed portion (131) and the road surface. One end (121a) of each constriction groove section (121) communicates with the corresponding recessed portion (131), and the other end (121b) of the constriction groove section (121) communicates with a circumferential groove (11). The configuration causes the depth of the air chamber section (130A) from the ground contact surface to change in the circumferential direction of the tire, and as a result, even if a stone or the like is caught by the air chamber section (130A), the stone or the like tends to easily come out of the air chamber section (130A) by being moved in the circumferential direction of the tire as the pneumatic tire (10) rolls. |
