| 摘要 |
The fitting of removal apertures of containers, particularly made of sheet metal, with closures made of plastic is made less complex and easier if the edge region of the containers is pressed outwards in a tubular shape to form a container nozzle and its free end is shaped to point outwards and downwards so that the closure can be pressed into the opening of the container nozzle and can be clamped by an attachment ring which is pressed on, rests with its top side on the edge flange of the closure and, engaging with a tubular projection around the collar of the container nozzle, is supported against its lower edge regions after being pressed on by means of an undercut. In particular in the case of holding rings made of plastic, it has proved to be advantageous for these container nozzles, which have become deformed after disadvantageous deformation of the container, and their collar to be capable of adapting in a relatively stress-free state and thus still reliably to maintain the required sealing even after considerable deformation.
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