| 摘要 |
PURPOSE:To simplify the constitution of the device by detecting the simultaneous change of the impedance values of plural pairs of selection coils from their waiting state values and generating a coin return signal indicating the execution of coin return operation. CONSTITUTION:When the coin return operation is executed, respective intervals between selection coils 1A and 1B and between 2A and 2B respectively opposed through a coin passage are simultaneously expanded. Thereby, the outputs 41a, 42a of both comparators 41, 42 are simultaneously turned to 'HIGH', the output of an AND circuit 50 is also turned to 'HIGH' and a coin return signal RT is outputted. Since the coin return signal RT indicating the execution of coin return operation is generated at the time of detecting the simultaneous change of the impedance values of plural pairs of selection coils 1A, 1B, 2A, 2B from their waiting state values, the constitution can be simplified. |
