| 摘要 |
For obtaining a simple and efficient guarantee closure of jug shaped sales packings it is known to mount and crimp a piece of a plastic hose (18) about the edge of the mounted lid (4, 6) and a widened portion (22) of the jug (24) located just underneath the lid edge. However, the required equipment for mounting these sleeves (18) is so expensive that it can be used economically only in a large scale production. With the invention it is made possible to use the said closing also in smaller productions, because the said expensive equipment is utilized for a large scale production of lids (4, 6), which, placed on a carrier block (10), is separately provided with the sleeve (18), which is crimped at the outside and the top side of the lid, but not underneath the lid. For the jug closing in smaller productions it is then possible to use these prepared lids which can be mounted as usually and thereafter be guarantee closed just by a simple crimping treatment of the freely depending portion of the sleeve (18). |
