| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that static electricity is charged in the metallic configuration member of a pachinko game machine to produce noise causing a malfunction in the operation of an electronic circuit which is formed on a control board or to given an unpleasant feeling to a player by electric discharge in a conventional pachinko game machine. SOLUTION: Sheet plates 29a, 29b and 29c are arranged in an electrically grounded manner at three places in the circumference of the rear surface of a base door 12. A resistance plate 27 is fixed to the lower right sheet plate 29c. A metallic plate for shielding static electricity is arranged on a rear surface at the board rear surface side of a main control board case 41. The metallic plate is connected to the resistance plate 27 with a ground wire 28. A ground wire 25 connected to a ball guide 24 is also connected to the resistance plate 27. Thus, static electricity charged in the balls passing through the ball guide 24 and the metallic plate is grounded via the resistance plate 27. COPYRIGHT: (C)2003,JPO
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