| 摘要 |
<p>The tube end closing device is partic. for tubes used for the transport of goods, it being possible to distort the tube wall at one or both ends to prevent the goods falling out, or to allow their extraction. In the wall (2) near one or both ends a slot (4) is formed, extending part way round the periphery. This allows the strips (6) formed between slot and tube end to be moved between a first stable position in line with the rest of the tube and a second one protruding inside it, so as to shut the end off. There can be two such slots formed in the wall clear of the tube end, thus forming between them a strip which can protrude inside the tube.</p> |
