| 摘要 |
PURPOSE:To secure an assured coin supervisory unit featuring a small amount of power consumption by providing the coin supervisory units at the upper and lower parts of the storage lever on the coin route and actuating them separately only when necessary. CONSTITUTION:When hook switch HS is turned on, luminous element EL2 has light emission to supervise the presence or absence of the coin under the storage lever. In case the coins stop, Vpt2 is turned to the H level via photo detector PT2. And impulse contact Di is ahort-circuited via initial reset circuit IRS, FF1 and SCR each to block the dial transmission. In case the coin is thrown in after hook-off, the coin on the storage lever is detected by element EL1 and via circuit IRS, differential circuits (R19, C9) and transistor Tr6 each. If the exists, SCR is turned on in the same way. Thus, the supervisory units are actuated only when necessary, reducing the amount of the power consumption. |
