MANUFACTURE OF CONTAINER HAVING CONNECTING MEMBER SUCH AS SHORT FILLING PIPE AND/OR SHORT DISCHARGE PIPE

PURPOSE: To certainly weld a connection member to a flexible thin wall-like container by deforming the container so as to generate a constricted part in the transfer area between the container and the connection member and inserting a supplementarily formed counter member into the constricted part a...

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1. Verfasser: BERUNTO SHIENKU
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE: To certainly weld a connection member to a flexible thin wall-like container by deforming the container so as to generate a constricted part in the transfer area between the container and the connection member and inserting a supplementarily formed counter member into the constricted part and pressing the free edge part material of the constricted part and the connection part to the counter member to weld them. CONSTITUTION: An almost rectangular container 1 is produced by a vacuum deep drawing method and a spherical projection 2 is molded. A constricted part 3 is formed to the piercing opening of the container 1 for the connection member in relation to the projection 2. When the connection member is ready to be connected to the container 1, the spherical projection 2 is cut at first but this cutting is performed by removing a spherical crown 4. As a result, the container 1 having the annular constricted part 3 is formed and the connection member, for example, a worm short pipe 5 is brought into contact with the free end surface thereof and a counter member not shown in a drawing is drawn into the constricted part 3 and the connection member 5 is pressed to the edge part material and counter member of the constricted part by its corresponding flange to be welded to the container 1.