| 摘要 |
<p>In order to provide a safety tire which is improved in a riding comfort characteristic to a large extent while maintaining run flat durability at a practicable level, assumed is a constitution of a safety tire A comprising a left and right pair of the bead parts 1, at least one carcass layer 2 coupled from one of the bead parts 1 to the other one thereof, the tread part 3 and the reinforcing belt 4 disposed at the outside in a tire radial direction of the carcass layer 2, a pair of the side wall parts 5 disposed left and right at the tread part 3, an inner liner layer 6 located at the inside of the carcass layer 2 and a pair of an annular side reinforcing rubber layers 7 having a crescent cross-section which are located between the carcass layer 2 and the inner liner layer 6 in a part corresponding to the side wall part, wherein in the side reinforcing rubber layer 7, an elastic modulus is gradually reduced in a range of 0.1 to 1.0 MPa in terms of a difference in a 100 % tension modulus of adjacent 2 mm layers at any part in a radial direction in the reinforcing rubber extending from the carcass layer side 2 to the inner liner layer side 7.</p> |
