JPH041052Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a container for liquids such as milk, juice, etc. Container for liquids whose contents are liquids.

(Prior Art) In a conventional liquid container formed into a rectangular tube shape using paperboard coated with a thermoplastic resin, if the top portion is formed into a gable shape, for example, it is impossible to stack the containers.

Further, even if the top portion is formed into a planar shape as shown in the first figure, the edges of the overlapped flaps forming the top portion form a step 20 in the center. Moreover, since the level difference occurs linearly in the longitudinal direction, it becomes a major obstacle when stacking containers in a stable state.

In addition, in order to form the top into a flat top, the ears 21 protruding outward from the container are bent and sealed against the sides of the container, so the ears 21 of the containers collide with each other during display, resulting in an orderly display. I can't do it,
Furthermore, there was an inconvenience in that it caused trouble when sold by vending machines.

(Problems to be Solved by the Present Invention) The purpose of the present invention is to provide a liquid container with a flat top surface and prevent the weight from being unevenly distributed.
The purpose is to provide a liquid container that allows stable stacking and orderly display.

(Means for Solving the Problem) In order to solve this problem, a liquid container according to the present invention having a flat top surface is made of paperboard coated with a thermoplastic resin, and is made of paperboard coated with a thermoplastic resin. Side plates 1, 2, 3, 4 formed continuously in the direction
and the side plates 1, 2, 3, 4 through the horizontal fold 11.
The flap has an inner flap 5 and an outer flap 6 constituting a top portion formed upwardly, and the inner flap 5 has a lateral length longer than the outer flap 6 and has a rectangular cross-sectional shape. In this liquid container, a pair of rectangular inner flaps 5,5
has triangular folds A, A formed by inclined folds 12 in the form of an isosceles right triangle with the horizontal fold 11 located between the longitudinal folds 10 as the base, and the height of the rectangular outer flap 6. The flap is formed so that its length n is approximately half of the lateral length n of the inner flap 5, and the triangular folded portions A, A of the inner flap are each folded inward, and the apex portion a of the triangular folded portion is , a are superimposed on each other and the upper edges 8 of the pair of outer flaps 6 are folded above the inner flaps 5.
are heat-sealed adjacent to each other.

(Example) Examples of the liquid container according to the present invention will be described below based on the attached drawings.

FIG. 2 is a perspective view of a liquid container containing milk or juice according to the present invention, and FIG. 3 is an exploded inner view of the top of the container.

That is, the side plates 1, 2, 3, and 4 are formed of paperboard coated with thermoplastic resin and are formed continuously in the horizontal direction via vertical folds 10, and above the side plates 1, 2, 3, and 4, there are approximately horizontal A pair of inner flaps 5 and a pair of outer flaps 6 are formed via a horizontal fold 11. The inner flap 5 and outer flap 6 constitute the top. Here, the horizontal fold 11 is formed almost "almost horizontally" in addition to the case where the horizontal fold is formed horizontally (not shown), as shown in the third diagram. In consideration of thickness, ease of folding, etc., both the cases where the horizontal folds constituting the horizontal folds 11 are slightly shifted in the vertical direction are included. Note that a joining flap 7 is formed on the side of the side plate 1 and the inner flap 5 via a vertical fold 10.

In a container having such a configuration, the pair of rectangular inner flaps 5, 5 have longitudinal folds 10, 10.
It has triangular folds A, A formed by inclined folds 12 in the form of an isosceles right triangle with the horizontal fold 11 located between as the base. The triangular folded parts A, A of this inner flap are each folded inward by folding the inclined fold 12 inward, and both apex corners a, a of the triangular folded parts are overlapped with each other (the (See Figures 4 and 5).

A pair of inner flaps 5 folded in this way,
Above 5, a pair of outer flaps 6, 6 are folded in and heat sealed with their upper edges 8 adjacent to each other (see FIG. 6).

In this case, since the height m of the rectangular outer flap 6 is approximately half the lateral length n of the inner flap 5, the upper edges 8, 8 of the pair of outer flaps are adjacent to each other, There is no difference in level caused by overlapping.

Furthermore, there is no particular gap between the upper edges 8, 8 of the outer flaps. Note that the drinking spout 9 at the top (with a breakable seal) is formed on the outer flap 6 (a portion composed of one outer flap) that does not overlap the inner flap 5.

Since this weight-free area can be kept fairly large, it is easy to form a large drinking spout 9. Therefore, drinking directly from the spout is a so-called ``guinomi.''
This also makes it possible to use straws, eliminating the need for straws.

As for the bottom of the container, any of the various conventional planar bottom structures may be employed.

Looking at how the inner flap 5 and outer flap 6 overlap at the top where the surface is formed in a planar shape as described above, the weight due to the folding of the inner flaps 5, 5 is absorbed by the pair of rectangular outer flaps 6, 6. completely covered. Further, the upper edges 8 of the pair of outer flaps are arranged adjacent to each other without creating a step in the center of the top, thereby ensuring the flatness of the top surface.

Furthermore, as shown in the top external view of FIG.
The degree of weight of each flap is such that, except for the weight part between the joining flap 7 and the inner and outer flaps 5 and 6 (4 pieces of b and 2 pieces of c), the upper edges 8 and 8 of the outer flap are placed in the center of the top. Since they are all arranged symmetrically and in the same number with respect to the adjacent line formed by 1
Sheet). In addition, 5 is attached to the apex portions a and a of the triangular folded portion.
However, since this weight portion is only a small portion of the apex corner, the flatness of the top surface is not significantly impaired by this weight portion.

In addition, the overall number of flap weights is small, and the area of the five weights is very small, making it easy to form the top by heat sealing.

(Effects) As mentioned above, according to the liquid container according to the present invention, the top surface of the liquid container is formed in a flat shape without any step, and there is no uneven distribution of the weight, so that stable stacking is possible. This has excellent effects such as making it possible to display the products in an orderly manner and making it easy to form the top part by heat sealing.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional liquid container with a flat top surface, FIG. 2 is a perspective view of a liquid container with a flat top surface according to the present invention, and FIG. 3 is a perspective view of a liquid container with a flat top surface according to the present invention. FIGS. 4 to 6 are perspective views showing the assembly of the top of the container, and FIG. 7 is an outside plan view of the top of the container. 5...Inner flap, 6...Outer flap.

Claims (1)

[Claims for Utility Model Registration] A side plate made of paperboard coated with a thermoplastic resin and formed continuously in the horizontal direction through vertical folds, and a top portion formed above the side plate through the horizontal folds. In a liquid container having a rectangular cross-sectional shape and having an inner flap and an outer flap, the inner flap has a longer lateral length than the outer flap, and the inner flap has a pair of rectangular inner flaps. has triangular folds A, A formed by inclined folds in the shape of an isosceles right triangle with the horizontal fold located between the longitudinal folds as the base, and the height of the rectangular outer flap is equal to the inner fold. The flap is formed so as to be approximately half the horizontal length of the flap, and the triangular folded parts A and B of the inner flap are each folded inward, and the apex corners of the triangular folded parts A and B are overlapped with each other. . A liquid container having a flat top surface, characterized in that the upper edges of the pair of outer flaps folded above the inner flap are heat-sealed adjacent to each other.