JPS6122813Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a liquid paper container, and relates to a liquid paper container that enables highly efficient box manufacturing and has both sufficient adhesive effect and sufficient formability.

Conventionally, for example, in the case of a liquid paper container with a roof-shaped top for storing milk, juices, etc. as shown in FIG. The fold lines 1, 2, 3, and 4 of the book cross each other, and the fold lines 1, 2, 3, and 4 are carved by pressing from the outer surface of the container. 3,4
Generally, the inner surface side is convex and the outer surface side is recessed, but the amount of recess on the outer surface side is extremely subtle and is smaller than the creases on other parts of the same blank board. The tolerance range is very narrow, which has the disadvantage of deteriorating the production efficiency of the container itself. If the creases 1, 2, 3, and 4 of the adhesive part A become deeper, the depression will become deeper when pasting the outer surface of the adhesive part A and the side edge B on the opposite side. Therefore, the adhesion becomes insufficient, causing leakage of the stored liquid after the case is made.Also, if the recess is made shallow, the adhesion will be sufficient, but the role of the crease will be reduced, resulting in poor forming, so the amount of recess in the crease will be reduced. This is because you must always be extremely careful. The present invention eliminates these drawbacks of conventional liquid paper containers.

To explain one embodiment of the present invention using figures, the third
The figure is a developed view of the liquid paper container according to the present invention,
The folded lines 1, 2, 3, and 4 in the adhesive part A are provided with portions 10, 20, 30, and 40 without folded lines, respectively.

Since the present invention has the above-mentioned configuration, when pasting the side end B on the opposite side to the pasting part A overlappingly on the outer surface of the pasting part A, the parts 10, 20, 3 that are not recessed are
0 and 40 are completely adhered to the side edge B, and when bending is performed, sufficient bending is possible due to the creases 1, 2, 3, and 4 other than portions 10, 20, 30, and 40. Therefore, it is possible to obtain a paper container for liquid that is excellent both in functionality and appearance, completely preventing liquid leakage and being folded neatly. Since there is a guarantee that both molding and molding can be performed perfectly, there is no need to worry so much about the amount of indentation in the creases, and therefore, it has the remarkable effects of being able to mass-produce with high efficiency. .

[Brief explanation of the drawing]

1 and 2 are a partially cutaway perspective view and a developed view of a conventional liquid paper container, respectively, and FIG. 3 is a developed view of an embodiment of the present invention. Explanation of the symbols representing the main parts of the figure, A...Adhesive part, B...Side edge part, 1, 2, 3, 4...Created line,
10, 20, 30, 40... portions without creases.

Claims (1)

[Scope of utility model registration request] In a liquid paper container in which the pasting part is also subjected to bending, a part with creases engraved along the fold passing through the pasting part and a part without creases are provided,
A liquid paper container characterized in that a part of the crease area of the adhesive part in the part where the fold line is not carved is completely adhered to the container wall side end to be pasted with the adhesive part. .