| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pneumatic tire that reduces pumping noise while maintaining drainage performance. <P>SOLUTION: The pneumatic tire having a tread surface 3 provided with a longitudinal groove 4 formed in the circumferential direction CD of the tire includes: a band-shaped protrusive streak 5, which is protruded from a groove-depth-direction central part 41a of one groove wall 41 of the longitudinal groove 4 toward the other groove wall 42 thereof, and is continuously provided along the circumferential direction CD of the tire; and a small protrusive streak 6, which is protruded from the other groove wall 42 to face the band-shaped protrusive streak 5 and that is lower in protrusion height than the band-shaped protrusive streak 5, and is continuously formed along the circumferential direction CD of the tire. <P>COPYRIGHT: (C)2013,JPO&INPIT |
