| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of securing operation stability and durability. SOLUTION: A bead filler 24 is provided with a constant width part 24A on a bead core side, and a tapered part 24B gradually reduced in thickness is provided in the constant width part 24A outside in the radial direction of the tire. With this structure, rigidity in the lateral direction can be improved in comparison with a current bead filler formed into a nearly triangle, and deformation of the bead part 12 by falling when the lateral force is applied to the tire can be restricted to avoid concentration of the stress to a side wall part 26 when a large lateral force is applied. Operation stability and durability of the side wall part 26 are thereby improved. COPYRIGHT: (C)2008,JPO&INPIT
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