| 摘要 |
PROBLEM TO BE SOLVED: To prevent a wrong detection such a detection disable to detect game balls by disposing a detecting means for detecting the balls at a position where a passing speed in the middle of a passage for passing the balls becomes comparatively low at a time of passing the game balls. SOLUTION: An access switch 5 is fixed to an external section of a back cover 3 by a synthetic resin holder 10. The back cover 3 forms a recess section 11 for engaging a trunk section of the access switch 5 at a center section, and has assembling pieces 12, 12, for being fixed by screws at both sides. Assembling pins 13, 13, provided projecting to the recess 11 are inserted into penetrated holes 5a, 5a of the access switch 5 to prevent moving to upper and lower directions, and the assembling pieces 12, 12, are fixed by screws to the back cover 3. The access switch 5 is positioned on an extended line of a pachinko ball passage 6 where sensor sections are continued from a front cover 4. Since pachinko balls passing through the pachinko ball passage 6 change directions, a speed of the balls becomes lowest at this position and the balls are precisely detected without errors.
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