| 摘要 |
An air bladder 2 for a safety tire can be produced while maintaining the high productivity because a curve of tensile force to an elongation reaching to an elongation of 50% has a hook shape changing from a sharp linear form in the vicinity of an elongation of 5% to a generally flat curved form in a crown region 5 of an extended deformation portion 3 and an upward sloping shape smoothly increasing with the increase of the elongation in a side region 6 thereof, and the extended deformation portion does not contact with the inner face of the tire during the normal running of the tire and can equally close to the inner face of the tire during the run-flat running to efficiently support the load. |
