| 摘要 |
<p>The drum closure for a drum for receiving a powdery material having an aperture which can be closed by a rotating disc and a peripheral beaded region (3) around the aperture at the lid edge is to be provided with a child-proof closure. According to the invention, the closure consists of a lid ring (1), which is fixedly connected to the drum in the beaded region (3), and a rotating double disc which can be connected to the lid ring (1) with the aid of a coding system (2, 9). The inner disc (7) of the double disc can only be passed through the recess (4) punched out of the lid ring (1) in one particular rotational position. <IMAGE></p> |
