| 摘要 |
PROBLEM TO BE SOLVED: To improve the passage structure of a part to be opened and closed to a main body and the main body. SOLUTION: A fixing metal fitting 63 is fixed to an inner frame 10, a displacing metal fitting 62 is attached to the passage structure 30 and the displacing metal fitting 62 is brought into contact with the fixing metal fitting 63 when the passage structure 30 is brought to a normal position. Also, since a grounding sheet metal 34d for grounding a game ball is disposed inside a ball tank 34a and the grounding sheet metal 34d and the displacing metal fitting 62 are connected, even without laying a lead wire between the passage structure 30 and the inner frame 10, the grounding sheet metal 30d and the main body side are conducted by the contact of the displacing metal fitting 62 and the fixing metal fitting 63. Since the displacing metal fitting 62 separates from the fixing metal fitting 63 when the passage structure 30 is brought to an isolated position, the need of prolonging the lead wire corresponding to the displacement amount (moving an amount) of the passage structure 30 and laying the lead wire evading other components and members is eliminated. Since the need of laying the lead wire between the passage structure body 30 and the main body side is eliminated, various failures accompanying that are all dissolved.
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