| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pneumatic tire which has improved ride quality performance in normal internal pressure driving, while securing run flat durability. <P>SOLUTION: The pneumatic tire includes a reinforcement rubber layer 7 arranged at an inner circumferential side of a carcass at least in a part corresponding to a sidewall part 2. A tire radial direction inner end 7a of the reinforcement rubber layer 7 is positioned at tire rotation axis line side from a virtual line passing through a limb line position and orthogonal to a tire outer surface, in a cross sectional view in a width direction of the tire which is mounted on an applied limb and is in no load state where prescribed internal pressure is applied to the tire. A tire radial direction outer end 8a of a bead filler 8 is positioned on a side opposite to the tire rotational axis line with the virtual line interposed between the tire radial direction outer end 8a and the tire rotational axis and within a range of 10 mm in a direction orthogonal to the virtual line from the virtual line, and a distance between the tire radial direction inner end 7a of the reinforcement rubber layer 7 and the tire radial direction outer end 8a of the bead filler 8 is 10 mm or more when measured along the direction orthogonal to the virtual line. <P>COPYRIGHT: (C)2013,JPO&INPIT |
