| 摘要 |
PROBLEM TO BE SOLVED: To provide a fraud detection structure of a game machine, capable of reliably detecting illegal opening of an inner frame or a design frame, and reporting it.SOLUTION: When an inner frame 2 and a design frame 3 are closed in a reference state, a wire member 60 of a displacement amount detector 6 is stretched between a design frame 3 and an outer frame 1 so as to be pulled out and taken up, and the wire member 60 is drawn by a predetermined amount from a take-up position. When the inner frame 2 or the design frame 3 is opened and the drawing amount of the wire member 60 exceeds the reference state (predetermined amount), a warning of the opening is issued. Even if the wire member 60 is cut off through a gap between the frames 1, 2 and 3 in order to prevent the warning, when the remaining wire member 60 is taken up and the drawing amount becomes less than the reference state, the warning is issued, and fraud is easily detected by patrol staff in a store. |
