| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rigidity measurement device of a tread ring which can measure a rigidity of a part of a tread ring single body of an airless tire in a circumferential direction.SOLUTION: A rigidity measurement device of a tread ring 100 includes a support jig 2 for removably holding a tread ring 100 single body. The support jig 2 comprises: an opening part 21 which exposes a measurement area 100A that is a part of the tread ring 100 to the outside in a deformable manner; and a restraining part 22 which restrains a non-measurement area 100B that is an area other than the measurement area 100A in a substantially non-deformable manner. Since the restraining part 22 suppresses deformation of the non-measurement area 100B, stress is not caused in the non-measurement area 100B, and the rigidity of only the measurement area 100A can be measured.</p> |
