| 摘要 |
PROBLEM TO BE SOLVED: To facilitate assembling operation and disassembling operation and to improve recycling performance. SOLUTION: A game board unit 20 comprises a game board 4, a game region regulating frame 21 and a control circuit unit 22. The rear surface of the game region regulating frame 21 is provided with an operation knob 31 constituting a lock mechanism. When manufacturing the game board unit 20, at first, the game region regulating frame 21 is assembled in the front surface of the game board 4 and then the control circuit unit 22 is assembled therein from the rear surface of the game board 4. In this case, the game region regulating frame 21 and the control unit 22 are engaged with each other by the lock mechanism with the game board 4 clamped therebetween. COPYRIGHT: (C)2004,JPO
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