To provide a pneumatic tire for improving on-ice performance, and improving steering stability and quietness on a dry road surface, by a novel technique.
In this pneumatic tire 1, a block land part 5 for constituting these block land rows is arranged by being mutually dislocated in the tire peripheral direction between the block land rows 6 adjacent by sandwiching a peripheral directional groove 3. The extension direction of a groove part 7 between the block land parts 6 adjacent in the tire width direction, inclines in the tire width direction and the tire peripheral direction. A distance between the block land parts adjacent in the tire width direction is shorter than a distance between the block land parts adjacent in the tire peripheral direction, and the length of a cross section in the tire width direction of the block land part 5 increases over a central part of the block land part from both end parts in the tire peripheral direction of the block land part 5. The length in the tire peripheral direction of a groove part 10 between the block land parts adjacent in the tire peripheral direction, increases over the central part 12 from both end parts 11 in the tire width direction of such a groove part 10.
| JP2004142698A | 2004-05-20 | |||
| JP2009234362A | 2009-10-15 | |||
| JPH1029411A | 1998-02-03 | |||
| JPH08318710A | 1996-12-03 | |||
| JP2004142698A | 2004-05-20 | |||
| JP2009234362A | 2009-10-15 |
| WO2008146851A1 | 2008-12-04 |
Kiyoshi Kuruma
Tatsuya Sawada
Kazuyuki Tomita
Yuta Terashima