PLACEMENT DETECTOR FOR CONTAINER

摘要

PURPOSE:To achieve the automatic detection of the placement of a container accurrately by using a detection circuit fully electronized. CONSTITUTION:A solenoid valve SV is provided in the course of a water supply pipe and the amount of water to be supplied to a cup K is adjusted to always supply a fixed amount of water to the cup K. For example, a photodiode 41 is set on one side of a tray while a phototransistor 51 is set on the other side. When the cup K is placed therebetween, a photocoupler therebetween is cut off allowing the detection of the cup K being placed on the tray. The photodiode 41 is connected to an oscillation/driver circuit 4 and the phototrasistor 51 to a detecting section 5. When, the cup K is placed on the tray, the action is detected with the photosensor 41 and the phototransistor 51 and a control circuit is controlled to supply water to the cup K. The amount of water filling the cup K is measured with a water quantity adjustment varying stabilization circuit to detect that the amount of water reaches a fixed value.