| 摘要 |
PROBLEM TO BE SOLVED: To enhance turning performance by improving transient characteristics and the like of roll response while securing roll characteristics from a roll intermediate period through a roll ending period.SOLUTION: Tread patterns at one side and at the other side in a tire shaft direction include: inner middle inclined grooves arranged across a center area and a middle area; outer middle inclined grooves arranged across the middle area and a shoulder area; and shoulder inclined grooves arranged only in the shoulder area, where the shoulder inclined grooves are communicated with tread ends. The inner and outer middle inclined grooves and the shoulder inclined grooves are inclined at angles θa, θb and θc in the same direction, with a relation of θa<θb<θc. When viewed from a tire shaft direction, the inner and outer middle inclined grooves do not overlap with the shoulder inclined grooves. When viewed from a tire circumference, the inner and outer middle inclined grooves overlap with each other with an overlapping width We1, and the outer middle inclined grooves overlap with the shoulder inclined grooves with an overlapping width We2. The overlapping widths We1 and We2 are 20-40% and 10-30% respectively of a groove length Lb1.SELECTED DRAWING: Figure 3 |
