| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to detect fraudulence to make a coin count of a reel type game machine improperly act. SOLUTION: The fraudulence detection devices of the reel type game machine respectively arranged at the upstream side and the downstream side of a guide through which coins pass and having a first and a second sensors detecting the passage of the coins has a detecting means detecting the movement of the first or the second sensor moving by the passage of the coins and transmits movement signals, a calculating means calculating a time interval of two movement signals detected from the movement of the sensors by the passage of the two coins and transmitted by the detecting means, an interval comparing means comparing the time interval calculated by the calculating means and a preliminarily stored predetermined interval, and alarm means alarming when the calculated time interval is shorter than the predetermined interval. COPYRIGHT: (C)2005,JPO&NCIPI
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