| 摘要 |
PROBLEM TO BE SOLVED: To improve the stability of maneuvering while preventing the performance of FV and road noise reduction from degrading. SOLUTION: A projection 10 is formed on a bead outside surface S3 faced to a rim flange R2 in a manner that the projection 10 extends along a circumferential direction of a tire and are in pressure-contact with the flange R2. The projection 10 has the height La from a bead base line BL of a radial inner end 10e set to 15 to 18 mm, the radial projection width W set to 10 to 15 mm, and the projection height from the bead outside surface S3 to 1.0 to 2.0 mm. In a rim assembly state, the rising angleθfrom a bead bottom surface S1 on the surface S3 is set to 80 to 90°. COPYRIGHT: (C)2004,JPO
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