| 摘要 |
PROBLEM TO BE SOLVED: To prevent a positional slip or a dropping or the like of an internal bag from occurring during transport of a mounting cup and at the time of the filling of an under cup, and surely perform a hermetic sealing with a container mouth section by providing a fixed section and a free section corresponding with a part to be clinched on an internal surface organic film of the mounting cup and the opening section of the internal bag made of a resin. SOLUTION: In a bonding structure between an internal surface resin film 43 of this mounting cup 1 and an internal bag 3 made of a resin, a fixed part 40 wherein the internal surface organic film 43 and the opening section 31 of the internal bag 3 made of the resin and the vicinity are partially heat-welded, and a free part 41 wherein the internal surface organic film 43 and the internal bag 3 made of the resin are kept under an unbonded state, corresponding with a part to be clinched of the mounting cup 1, are provided. By setting the width of the fixed part 40 at a range of 2-5 mm, the internal bag 3 made of the resin is prevented from dropping and positionally slipping or the like. Then, at the time of a clinching operation wherein the mounting cup 1 is joined to a spectacle lid of a container, the internal bag 3 made of the resin is inserted, and in addition, is kept under the unbonded free state, and a sure hermetic sealing becomes possible. |
