Plug and amorphous container using the plug

A cylindrical plug attached to a pouch container, the pouch container capable of varying its shape, the cylindrical plug having one terminal side positioned inside the pouch container, the cylindrical plug having a second terminal side positioned outside said pouch container comprising:

• a split pipe connected to the one terminal side and divided into two halves along its longitudinal direction, so that the split pipe is provided with interstices intercommunicating between the inside and the outside of the split pipe, and
• a joint plate for integrally coupling the two halves of the split pipe,
• the two halves of the split pipe joined by said joint plate, the joint plate having a Z shape, with each side of the Z shape having a continuous uninterrupted surface, so that the thickness of the Z shape is constant along the total length of the Z shape.

A cylindrical plug attached to a pouch container, the pouch container capable of varying its shape, the cylindrical plug having one terminal side positioned inside the pouch container, the cylindrical plug having a second terminal side positioned outside said pouch container comprising:

• a split pipe connected to the one terminal side and divided into two halves along its longitudinal direction, so that the split pipe is provided with interstices intercommunicating between the inside and the outside of the split pipe, and
• a joint plate for integrally coupling the two halves of the split pipe,
• wherein said joint plate is disposed over interval between a leading terminal and the vicinity of a basal terminal of said split pipe so as to form on the basal terminal side of said split pipe a through hole of a size smaller than the diameter on the leading terminal side of said split pipe.

A cylindrical plug attached to a pouch container, the pouch container capable of varying its shape, the cylindrical plug having one terminal side positioned inside the pouch container, the cylindrical plug having a second terminal side positioned outside said pouch container comprising:

• a split pipe connected to the one terminal side and divided into two halves along its longitudinal direction, so that the split pipe is provided with interstices intercommunicating between the inside and the outside of the split pipe, and
• a joint plate for integrally coupling the two halves of the split pipe,
• wherein a protuberance intended as a gate for introducing molten resin during the course of molding is disposed in a connecting part intervening between said split pipe and said joint plate.