| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which can raise the protective performance against fraudulent unlocking, and at the same time, can reduce the generation of deformation or damage of constituent members. SOLUTION: In a rotary drum game machine 1 using balls, a front door 3 is openably/closably supported at an outer frame 2. On the back surface side of the front door 3, a lock device which locks the front door 3 to the outer frame 2 is installed. The lock device includes a cylinder lock which is operated by a key, and a hook member which is displaced in association with the motion of the cylinder lock, and is locked to a receiving fixture on the outer frame 2. The displacement of the hook member becomes impossible without the insertion of the key in the cylinder lock. Also, the lock device includes a protective member which projects outward from the peripheral edge part of the front door 3 under an opened state of the front door 3, and the generation of troubles such as deformation or breakage on the hook member or the like resulting from the collision between the hook member and the receiving fixture when the front door 3 is closed is suppressed. COPYRIGHT: (C)2008,JPO&INPIT
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