| 摘要 |
PROBLEM TO BE SOLVED: To cool a component housing a heating part and a part sensitive to heat. SOLUTION: The component constructed of a center decoration 1, a screen cover 10, and a display 20 is installed to a game board 30 by means of a locking screw 42. In a radiation cover 50 installed to the back face of the game board 30, a back face part 51 is brought into contact with the back face of the display 20, side face parts 52-55 cover the side faces of the display 20, and extension parts 56-59 are fixed to the back face of the game board 30.
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