| 摘要 |
PROBLEM TO BE SOLVED: To provide a measuring device for an end part of a reinforcing bar, which can accurately measure a dimension of an enlarged diameter part of a reinforcing bar with an error as small as possible, and in a short time.SOLUTION: The measuring device for an end part of a reinforcing bar includes: a pedestal 3 on which a reinforcing bar 10 is placed, lying with an axis being positioned; a positioning member with which an end surface of an enlarged diameter part 11 of the reinforcing bar 10 placed on the pedestal 3 is in contact, to position the end surface; a light source 5 for irradiating the enlarged diameter part 11 and a part near the enlarged diameter part 11 with light; imaging means 6 for obtaining a silhouette image formed by light having passed through the enlarged diameter part 11 and the part near the enlarged diameter part 11, and light having been shielded by the reinforcing bar 10 of the enlarged diameter part 11 and the part near the enlarged diameter part 11; and an inspection part for measuring a dimension of the enlarged diameter part 11 on the basis of an imaging signal from the imaging means 6. |
