| 摘要 |
PROBLEM TO BE SOLVED: To provide a testing method for estimating an inner liner crack resistance performance of a tire.SOLUTION: A testing method of a tire includes: a temperature raising step of raising and maintaining a temperature of a test tire 2; and a running step of rotating the test tire 2 by a testing device 52 provided with a driving drum 60. An outer peripheral surface of the driving drum 60 is provided with a protrusion 62 capable of abutting against the test tire 2. A height H of this protrusion 62 is 10 mm or more and 30 mm or less, a temperature raising environmental temperature in the temperature raising step is 60°C or more and 100°C or less, a retention period under this circumstance of the test tire 2 is 6 days or more and 12 days or less, inner pressure of the test tire 2 is 70% or more and 80% or less of normal inner pressure in the running step, and a test load applied to the test tire 2 is 80% or more and 100% or less of a normal load.SELECTED DRAWING: Figure 2 |
