| 摘要 |
PROBLEM TO BE SOLVED: To provide a pachinko game machine which enables not only the determination of the original position of a gear module but also the detection of the fraudulence committed using a magnet even under the environment exposed to dust. SOLUTION: A magnet MG0 is imbedded near the outer circumference of a thin disc 1572aa of a front gear module 1572 to detect its magnetism with a Hall element 1580b of a front sensor board 1580. The detection of the magnetism with the sensor board 1580 is possible even when dust sticks to the magnet MG0 or the like as generated when the tooth faces of a ring gear 1572ab and those of a front intermediate gear 1576 of the thin-walled disc 1572aa are worn out. A U-shaped iron plate PTL is arrayed between an open/close wing solenoid 1390 and a magnetism detection switch 1395 and a passing track of the magnets MG0 and MG1, thereby enabling the drawing of the lines of magnetic force of the magnets MG0 and MG1 to weaken them to the open/close wing solenoids 1390. COPYRIGHT: (C)2009,JPO&INPIT |
