| 摘要 |
<p>Error-free operation of a liq. dispenser pump is carried out by a dispenser piston which operates when it is hung into, or removed from, the pump unit, in such a way that the pump motor switch operates without the necessity to reset a counting lever. The angular path of the connector piece (2) in the cutout direction, is of such a size that the reset or turn on action operates the pump motor switch (9) through a larger angled path than the angular play in the system. The switching shaft (3,8) may have two rotating parts (3,8) each with its own disc plate (6,6a). They are connected by at least one coupling rod (4) fixed to one disc (6).</p> |
