| 摘要 |
PROBLEM TO BE SOLVED: To provide a fraudulent unlocking preventive device of a pachinko machine capable of preventing a fraudulent game by opening a front frame by using a tool. SOLUTION: This pachinko machine for arranging a front frame 2 having a hook member 5 engageable with an engaging projection member 12 in a body frame 1 for fixing the engaging projection member 12 on one side surface so as to be horizontally openable, is provided with a cross-sectional U-shaped first protective member 14 being installed on the engaging projection member 12 and surrounding the hook member 5 so as to be tiltable, a second protective member 15 installed in one side surface corner part of the body frame 1 by overlapping with a back face of the first protective member 14 and fastening means (a screw 23 and a nut 24) for fastening an overlapping part of the first protective member 14 and the second protective member 15.
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