| 摘要 |
PROBLEM TO BE SOLVED: To provide a measuring apparatus 2 which is stable and capable of measuring a continuous metal mold inner peripheral surface.SOLUTION: This measuring apparatus 2 includes: a container 4 for fixedly holding a tread segment TS for tire vulcanization molding; and a measurement part 6 mountable inside the tread segment TS. The container 4 has a ring part 8 for gripping an outer periphery of the tread segment TS. The measurement part 6 includes: a distance sensor 12 for measuring a distance up to an inner peripheral surface of the tread segment TS; a rotary driving part 28 for causing this distance sensor 12 to rotate along a peripheral direction of the inner surface of the tread segment TS; and an elevating drive part 42 for causing this distance sensor 12 to elevate in a direction parallel with a center axis of the ring part 8.SELECTED DRAWING: Figure 1 |
