| 摘要 |
In a pneumatic tire comprising a tread which comprises a row of a plurality of blocks divided in the circumferential direction of the tire, a closed sipe is disposed at an approximately central portion of the block and is inclined in a direction opposite to a direction of transverse grooves with respect to an axial direction of the tire. Improved performance in driving on wet roads can be exhibited due to the transverse grooves and the closed sipes. Because the closed sipe is disposed at an approximately central portion of the block, pressure from the road surface can be dispersed to both sides of the closed sipe, and high pressure from the road surface at the central portion of the block can be reduced. Because the closed sipe is disposed so as to be inclined in the direction opposite to the direction of the transverse grooves with respect to the axial direction of the tire, sufficient rigidity of the block can be maintained, deformation at a time of contact with the road surface can be suppressed, and rolling resistance can be reduced.
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