| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem associated with an inspection method for examining whether a position and a height of a nail planted in a game board is within a predetermined range for a game board having a 3D cell on its surface, where, even with already disclosed methods, a nail head portion is increasingly difficult to image clearly due to failure in preventing a noise because beam of a light illuminating a nail head for inspection causes an irregular reflection on the 3D-cell game board.SOLUTION: An inspection device includes: transport means for transporting a game board at a given speed; a light 43 for illuminating a hear on the game board; line sensors 40, 42 for imaging a nail head; and shield plates 51a, 51b for shielding a part of light of the light 43. |
