| 摘要 |
PROBLEM TO BE SOLVED: To prevent breakage or a fraudulent act which are caused by rattling of a board case when transported while having a reduced number of components to facilitate its attachment and detachment in maintenance or the like. SOLUTION: A plurality of board cases 12-15 for storing a plurality of boards relating to game control are mounted to the mounting surface 11 of the casing by a locking structure 16. The locking structure is configured to allow movement of a single board case between a removal position at which the board case is removed from the mounting surface of the casing and a locking position at which the removal thereof is prevented. A movement restriction means 53 is provided for setting at least two sequential board cases to cross each other in moving direction between the removal position and the locking position, when the plurality of board cases are mounted in a predetermined order, and restricting the movement of a board case mounted before from the locking position to the removal position by a board case mounted after. COPYRIGHT: (C)2009,JPO&INPIT
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