| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic radial tire for an aircraft capable of enhancing durability by suppressing blow and crack from being generated on an outer surface and the inside of the tire near a belt end in the pneumatic radial tire for the aircraft provided with the belt layer having a winding path structure. SOLUTION: In the pneumatic radial tire for the aircraft having the belt layer 7A of a winding path structure, an annular projection-like part 9 extending along a tire circumferential direction K and having height of 0.5-1.0 mm is provided on the tire outer surface area 8a clamped by normals m, n drawn to belt ends x, y relative to an arc e passing through the belt end x of the belt layer 7x positioned at the innermost peripheral side, the belt end y of the belt layer 7y positioned at a center and a belt end z of the belt layer 7z positioned at the outermost peripheral side along a tire radial direction with a gap P of 0.5-2.5 mm. The whole surface area of the tire outer surface area 8a is increased by 20% or more by providing the projection-like part 9. COPYRIGHT: (C)2006,JPO&NCIPI
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