| 摘要 |
PROBLEM TO BE SOLVED: To efficiently inspect positional misalignment between a transmission board and a decoration layer.SOLUTION: A rear surface decoration sheet including rear surface identification marks 73a, 73b is formed at a rear surface side of a game board body 50. The game board body 50 includes reference holes 53c, 53d formed from a front side. Based on a relative position relationship between the reference holes 53c, 53d confirmed from the front side of the game board body 50 and the rear surface identification marks 73a, 73d, a positional misalignment between an acrylic board and the rear surface decoration sheet is inspected. In this manner, in the game board of a Pachinko machine, the positional misalignment of the rear surface decoration sheet provided on the rear surface side of the game board body 50 is inspected from the front side on a side opposite to the game board body 50. The reference holes 53c, 53d used for inspecting the positional misalignment are also formed from the same front side. |
