| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pneumatic tire that reduces distortion energy loss in a belt end, and further reduces rolling resistance, while maintaining various performance of a tire. <P>SOLUTION: In the pneumatic tire including a tread, a carcass extending in a toroidal form between a pair of bead cores forms a framework, and a belt composed of a plurality of belt layers and a plurality of circumferential grooves extending along a tire equator surface are formed radially outside the carcass. The tread is constituted of at least one tread rubber layer. A rubber sheet is disposed between the belt and the tread rubber layer to cover an end section located in the outermost side in a tire width direction, in end sections of the plurality of belt layers. The loss tangent of the rubber sheet at 60°C is lower than that of the tread rubber layer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
