| 摘要 |
PROBLEM TO BE SOLVED: To prevent accident from happening, and easily remove a lid body by a method wherein this packaging container is formed of a container main body which is formed of a plastic sheet and is open, the lid body which is bonded to the rim of the internal peripheral wall of the container main body and closes the opening of the container, and an unsealing preventive member which is bonded to the peripheral edge under a state wherein the lid body is placed on the container main body. SOLUTION: A housing part 6 which is open is defined by erecting a peripheral wall 5 while being extended, from the periphery of the bottom part of a container main body 1, and on the peripheral wall 5, a fitting part 7 in which the peripheral edge of a lid body 2 can be fitted, is provided, and a folding-back edge 9 is formed with a flat part 8. For the lid body 2, a peripheral wall part 11 is drawn while being extended from a top part 10, and the peripheral edge is bonded to the upper surface of a step part 7a to form a flange part 12, and the lid body 2 is formed so as to be fittable in the fitting part 7. An unsealing preventive member 3 is formed in such a manner that on a flat part 13 of the upper surface of the container main body 1, an internal surface part 14 and an external surface part 15 are extended, and an internal flange part 16 and an external flange part 17 are integrally connected. Thus, the lid body is surely bonded, and accidents can be prevented from happening, and the lid body can be easily removed without tilting the container. |
