| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pneumatic tire having improved bead stiffness and bead durability. <P>SOLUTION: The pneumatic tire includes a carcass 2 having a convoluted portion 2a convoluted to at least an outside face in a tire radial direction of a bead core 1, and has a bead filler 6 having a triangular cross section in a tire width direction, disposed outside in the tire radial direction of the bead core 1. The bead filler 6 comprises: a triangular hard rubber portion 6a having the base, which is arranged along the convoluted portion 2a, and having an apex 7, which is opposed to the base 3 and is located outside in the tire radial direction, in a cross section in the tire width direction; and a soft rubber portion 6b covering two sides 8a, 8b adjoining to the base 3 of the hard rubber portion in the cross section in the tire width direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
