To increase locking strength regulating the opening of a front frame member openably provided in an outside frame member of a game machine and prevent a fraudulent conduct.
The locking device of a game machine has an engagement hook 2 that is arranged in the opening side vertical frame of an outside frame member S or a front side frame member M and can be switched to a locking position and a releasing position by an opening process, an engagement rod 5 vertically withdrawably provided along the vertical frame and that can be switched to the locking position in which it advances upward or downward and to the releasing position in which it withdraws oppositely from the locking position by the opening process. When the front side frame member M is closed, the locking device engages the engagement hook 2 with a metal hook 4 provided in the vertical frame of the other frame member in the locking position and locks to the vertical frame and the horizontal frame of the frame member by inserting the engagement rod 5 into an engagement hole 6 provided in the horizontal frame of the other frame member in the locking position.
UCHIGASHIMA TAKAHIRO
KUROKI TOMOAKI
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