| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe inner surface shape acquiring device capable of accurately acquiring an inner surface shape of a pipe by a simple configuration.SOLUTION: The pipe inner surface shape acquiring device includes: a guide rod that is inserted from an opening end of a pipe 1 in the length direction of the pipe and has a groove part 11 having a guide surface 12 inclined in the length direction: a pad rod 20 that is inserted from the opening end of the pipe 1 in the length direction of the pipe and retains a molding material 40 to be pressed to the inner peripheral surface of the pipe 1; and a tapered rod 30 that is slidably inserted between the guide rod 10 and the pad rod 20, and that has a tapered surface 31, as being inserted therein, moves the pad rod 20 towards the side of the inner peripheral surface 2 of the pipe 1 by engagement with the guide surface 12 of the groove part 11 of the guide rod 10, and presses the molding material 40 to the inner peripheral surface 2 of the pipe 1. |
