| 摘要 |
PURPOSE:To improve the performance of absorbing vibration due to the road surface unevenness by disposing fabric cord plies between the carcass ply and belt ply in the tread section in such a manner that the ends of the fabric cord plies are overlapped on the carcass ply and filler, and by setting the ratio of the width of the belt plies and the width of the tread to a predetermined value. CONSTITUTION:Two belt plies 26 having the cord angle of 10-30 deg. and the ratio of belt width BW to tread width TW of 0.3-0.6 are disposed on the outside of the carcass ply 20 in the tread section 10, and two fabric cord plies 32, 34 are disposed between the carcass ply 20 and the belt ply 26. The ends of the fabric cord plies 32, 34 are extended to the shoulder section 11 and the bead section 13. The inner fabric cord ply 32 is arranged up to the downward of the outer rim of the shoulder section 11, and the outer fabric cord ply 34 is arranged to overlap the filler 16 and the flapped portion 21 of the carcass ply 20. In this manner, the performance to absorb the vibration due to the road surface unevenness can be improved. |
