| 摘要 |
PROBLEM TO BE SOLVED: To reduce an area being less prone to detect a change in magnetic flux density due to a fraud by expanding a detection area of magnetic detection means in a game machine in which the magnetic detection means is disposed outside an arrangement forbidden area in the periphery of a drive source.SOLUTION: A Pachinko game machine 1 includes: a movable member (an opening/closing members 32) driven with a progress of a game; a drive source (a first large winning hole solenoid 33) for driving the movable member; magnetic detection means (a magnetic sensor 45); and a detection area expansion member (a magnetic plate 70) consisting of a magnetic body. The magnetic detection means is disposed outside an arrangement forbidden area R1 in the periphery of the drive source and at an arrangement possible area R2 that is not actuated by a magnetic flux generated by the actuation of the drive source. The detection area expansion means is disposed at the arrangement possible area R2, however, parts thereof (a lateral part 70b and a rear part 70c) are disposed within a detection area R3 of the magnetic detection means. |
