JPH0352659Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a rectangular cylindrical paper container molded from a material made of paperboard as a base material and heat-adhesive synthetic resin laminated on both the front and back sides. This relates to a paper container for liquids in which the top part is folded flat and the folded end part of the palm seal part is held parallel to the side surface of the container.

[Prior Art] Conventionally, the top of the rectangular paper container made of paperboard as a base material has often been roof-shaped. Even when folding the top part flat, the fold line for forming the top part and the fold line for folding the roof shape were used to match the other fold lines.

As shown in FIG. 6, the lower folding lines b, b' of the triangular folded pieces a, a' on the top of the container were parallel to the other folding lines c, d, d'.

For this reason, when the top of the container is folded flat, the part that is folded back has two sheets of paperboard put together, and a third
As shown in the figure, the gassho folded piece at the end of the top folded piece a is stacked on top of e', and e' is stacked on top of the top folded piece f, and as a result, the folded line d is
It is pushed more strongly toward the bottom than d′.

That is, as shown in FIG. 4, the fold line d is near the upper end of the crease g, and the fold line d'
It will be folded near the lower end of g' (see Figure 5), and the formed container will have a height of A>
It becomes a rectangle deformed as shown in B. Therefore, the folded edges h and h' of the gassho seal are inclined by θ with respect to the vertical direction i.

When such deformed containers are transported in a stacked manner, the vibrations of the truck cause the containers to vibrate too much, causing liquid leakage. There is also a risk of malfunction in vending machines and the like.

[Problem to be solved by the invention] The problem of the invention is to provide a paper container that can be assembled without deformation, prevents liquid from leaking during transportation, and does not malfunction even in vending machines, etc. be.

[Means for Solving the Problems] The means of the present invention is to slightly shift the base crease line of the triangular top folding piece from the other top folding line so as to create an inclined step, so that the folded edge of the gassho seal The reason is that it is drawn in from the folded edge line and formed into a concave shape.

[Example] A specific example of the paper container according to the present invention will be described with reference to FIGS. 1 and 2.

In FIG. 2, the apex of the triangular folded piece 11 formed by the fold is 11A, the apex on the left side of the base is 11B, the apex on the right side of the base is 11C, and the apex on the left side of the base of the other triangular folded side 12 is also 11A. 12B, and the vertex on the right side of the base is 12C.

In the present invention, the folding lines 7, 9 of the bottom pieces of the folding pieces 11, 12 having triangular folds are as follows:
It is not continuous with the other top folding lines 8 and 10, but is slightly lowered and provided with a step. Furthermore, the position of the apex 11B is set below the apex 11C by an amount t, and at the same time the apex 12C is also provided below the apex 12b by an amount t. As a result, the folding lines 7, 9 provided at the base of the triangular folding pieces 11, 12 are different from the other top folding lines 8, 1.
It is inclined with respect to 0, and has a stepped relationship. This level difference depends on the thickness and rigidity of the paperboard, but in this embodiment, the level difference is made to be the same as the thickness of the paperboard. Of course, the number of times the paper thickness to make the step may vary depending on the container size, the laminated web used, and other conditions. Furthermore, the folded edge of the gassho seal 17,
18 is recessed from the other edges 19 and 20 so that it is parallel to the fold line of the container body. The depth of the recess is preferably 1.5 times the thickness of the paper.

[Function] The inclined folding lines 7 and 9 are the same as the folding lines 8 and 1.
A step is created from 0, and the gassho seal fold-in edge 1
7 and 18 are provided with a recessed step relative to the other edges 19 and 20, so when assembled, the folding lines 7 and 9 eliminate the conventional inclination and are assembled flat, and the edge 19 , 20, the conventional inclination angle θ is eliminated, and the entire structure can be assembled into a rectangular shape without deformation.

[Effects of the invention] Since the present invention has the above configuration, it is possible to prevent leakage during transportation and malfunctions in vending machines.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a paper container according to the present invention, Fig. 2 is a developed plan view, Fig. 3 is a perspective view showing a state in which the triangular folding piece and gassho seal folding piece of a conventional paper container are folded, and Fig. 4 is also a side view, 5th
The figure is a partial sectional view, and FIG. 6 is a developed plan view. 6, 8, 10... Top folding line, 7, 9...
Sloped top fold line with steps, 17, 18
... Gassho seal folded end, 19, 20 ... Gassho seal folded end.

Claims (1)

[Scope of utility model registration request] In a case where the roof-shaped top of a rectangular cylindrical paper container made of paperboard with heat-adhesive synthetic resin layers on both the front and back sides is folded into the side of the container, the other top folding line is slightly shifted from the base of the triangular top folding piece. A paper container with a crease line that creates an slanted step, and a folded edge of the gassho sticker that is retracted from the other folded edges to form a concave shape.