| 摘要 |
PURPOSE:To enable flat running by disposing a reinforcement rubber layer of crescent-shaped section extending toward crown and bead portions about the center of the side wall of the inner surface of a carcass layer, and applying other means. CONSTITUTION:A radial tire is reinforced with a carcass layer 40 of radial construction between a pair of beads 10 right and left, and both ply ends of the carcass layer 40 are wound from the axial inner side of a bead wire 11 to the outer side thereof. In this case, a reinforcement rubber layer 70 of crescent shape section is fitted about the center of the side wall 20 of the inner surface of the carcass layer 40, extending toward a crown part 30 and a bead part 10. Also, a rim fixing projection 80 mainly comprising hard rubber is provided, extending in a beak shape to the innermost radial positions of the bead side end 71 of the reinforcement rubber layer 70 and the bead part 10. And the end 81 of the rim fixing projection 80 is slant connected to the reinforcement rubber layer 70, thereby giving monolithic construction. |
