| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide technologies for detecting both fraudulence called "radio wave fraudulence" and fraudulence called "punching". <P>SOLUTION: The game machine includes a ball passage detecting part disposed on a game board for detecting passage of game balls, and is operated based on the detection of game balls by the ball passage detecting part. The game machine also includes: a metal body 632 detected by the ball passage detecting part; a ball passage detecting switch 610 and a ball passage detecting circuit 620 for detecting the metal body 632 at a predetermined detection position; and an enclosing part 631 for disposing the metal body 632 at the detection position when the game board is at a rest, and disposing the metal body 632 to be separated from the detection position when the game board vibrates. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
