To provide a pouch vessel capable of holding a mouth part in an open condition or in a close condition.
The pouch vessel comprises a bag body 10 formed of a pair of face and back exterior sheets 11 and a gusset sheet which is folded inwardly from a lower part of the exterior sheets 11, and a mouth part opening/closing member 20 which is heat-bonded to an inner surface of the mouth part of the bag body 10. The mouth part opening/closing member 20 has a pair of resin frames 21 which are elastically deformed so that a center part in the longitudinal direction is curved outwardly with both ends thereof connected to each other via a hinge 25. The deformed condition of the resin frames 21 elastically deformed by engaging a claw part formed on a shaft 26 which is a component of the hinge 25 with an engagement groove formed in an inner circumferential surface of a bearing part 27 which is a component of the hinge 25 can be maintained, and the mouth part of the pouch vessel 1 can be kept in the open condition.
| WO/2003/032712 | A NET STYLE PAPER BAG FOR FRUITS |
FUKUDA MASAHISA
TAKEO KAORU
