| 摘要 |
PROBLEM TO BE SOLVED: To prevent abnormality from being generated by a Pachinko ball falling down from a gift ball tank, or the like, to the circuit board case of a Pachinko game machine and electrically conducting terminals. SOLUTION: This case is composed of a main box part 17 formed in a box shape so as to surround a main electronic component 6 mounted on the surface of a circuit board 5 inside and a flange part 18 integrally formed by extending the opening edge of the main box part outwards. At the flange part, window holes 19 to 26 for exposing terminals 7 to 12 for external input/output for power and for communication, or the like, provided on the peripheral edge part of the circuit board are opened.
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