JPH07172429A - Paper container - Google Patents

Abstract

PURPOSE:To provide a paper container whose upper closed part is flat and also which can be unsealed similarly to a conventional gable-top-type container. CONSTITUTION:An extension 1a is provided on one of flaps 1 forming a top sealing part 9 of a gable-top-type paper container, while a breaking part (scores alpha) across the extension 1a is provided and also the top sealing part 9 is folded in an opposite direction to a side where the extension 1a has been provided and fixed at a part ahead the breaking part, making an upper part flat. After the extension 1a is broken at the breaking part and the top sealing part 9 has stood, the container is unsealed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper container for hermetically containing various liquids such as milk, juice, yogurt and other foods.

[0002]

2. Description of the Related Art Heretofore, as a typical example of this type of paper container, the bottom of a rectangular tube-shaped body is closed flatly to close the bottom, and after filling the liquid which is the content therein, There is known a so-called Goebeltop-type paper container formed by hermetically sealing a top part. This type of paper container is designed to be opened by first peeling one side of the top seal portion and spreading it to the left and right, and then pushing the spread portions from both sides to peel the inner seal portion and cause it to open.

[0003]

The Goebel top type paper container described in the prior art is excellent in that it requires no special opening means because it can be opened by peeling off the top seal portion as described above. However, on the contrary, there is a problem that it cannot stack in the vertical direction due to the fact that the upper closing part has a roof type. For this reason, the upper space is wasted when they are displayed side by side at the store, and it is unsightly to stack them side by side to prevent this.

The present invention has been made in view of the above problems, and an object of the present invention is to open a top closed portion in the same manner as a conventional gobel top type. It is to provide a paper container that can be used.

[0005]

In order to achieve the above object, the paper container of the present invention is provided with an extension portion on one flap forming a top seal portion of a Gobel top type paper container. The gist is to provide a ruptured portion that traverses the top seal portion, lay down the top seal portion on the side opposite to the side where the extension portion is provided, and stop the portion before the ruptured portion to make the upper portion flat.

[0006]

In the paper container of the present invention having the above-mentioned structure, the top seal portion is raised by breaking the extended portion at the breaking portion, and after being raised like this, it is similar to the conventional Gobel top type paper container. Then, the opening operation is performed.

Embodiments of the present invention will be described below with reference to the drawings.

[0008]

1 is a perspective view showing a paper container as an embodiment of the present invention, and this paper container C is made by assembling a blank B shown in the development view of FIG.

The blank B has substantially the same shape as that for forming a conventional Gobel-top type paper container, but an extension portion 1a is provided above one flap 1 forming a top seal portion. Then, a rupture portion is formed in the extension portion 1a so as to cross the extension portion 1a, and in this embodiment, a perforation α as a rupture portion is punched out at a position which is the same as or slightly higher than the height of the other flap 2. There is.

In order to assemble and form the paper container C of this embodiment from the blank B, first, the paper container C is assembled into the shape shown in FIG. That is, it is folded along the vertical ruled lines a and b, and the glue margin piece X is attached to the back side of the adhesive portion Y on the opposite side to form a flat shape. Then, after raising it into a square tube shape in the filling machine, closing the bottom part flatly and closing the bottom part, after filling the contents with this, the upper folding side walls 3 and 4 facing each other are formed along the diagonal ruled lines c and d, respectively. And fold inward, and the remaining opposite upper side walls 5 and 6 are bent inward, and the flaps 1 and 2 sandwich the upper folding ribs 7 and 8 of the upper folded side walls 3 and 4 so that they are superposed fourfold. The top seal portion 9 is formed by heat-sealing and adhering the overlapped portion, and the top sealing portion 9 is sealed in a roof mold to form an upper closing portion.

After assembling into the shape of the Gobel top in this way, the top seal portion 9 is tilted toward the opposite side where the extension portion 1a is provided, and the extension portion 1a is attached to the upper side wall 6 at a portion beyond the perforation α. Bonding to form the paper container C shown in FIG. In this case, the top side wall 6 is bent so that the top seal portion 9 is tilted and adhered so that the top portion becomes flat. When adhering,
Appropriate means such as hot melt, hot air seal, and heat seal may be used. Alternatively, a label may be attached and stopped.

When the above-mentioned paper container C is opened, the extension portion 1a is broken at the perforation α and the top seal portion 9 is raised as shown in FIG. Then, after that, the top seal portion can be peeled off in the same procedure as in the conventional Goebel top type paper container to open the container.

The break portion provided in the extended portion 1a is not limited to the straight perforation α as described above, and as described above, it is not always necessary to provide it in the vicinity of the boundary with the top seal portion. In short, any shape may be used as long as the top seal portion 9 can be stood by breaking the extended portion 1a. For example, the fractured portion may have a shape as shown in FIG. That is, what is shown in (a) has perforations α formed in a chevron shape, what is shown in (b) is notches 1b provided at both ends of perforations α, and what is shown in (c) is perforations α. A hole 1c having a size that allows a finger to be inserted is provided in the center of each of the above, and each of them is easier to break than the perforated line α of the above-mentioned embodiment. In addition, the type shown in (d) is a type in which a strip-shaped zipper 1d, which is a breaking portion, is provided by two rows of cuts β, and the extension portion 1a can be easily broken by peeling off the zipper 1d.

[0014]

As described above, in the paper container of the present invention, one flap forming the top seal portion of the Goebel top type paper container is provided with an extension portion, and a break portion is provided across the extension portion. Along with that, the top seal portion is laid down on the side opposite to the side where the extension portion is provided, and the top portion is configured to be flat by stopping at the portion beyond the break portion, so that the top portion is flat and stackable, Moreover, after the extended portion is broken and the top seal portion is set up, it can be opened in the same manner as a conventional Goebel top type paper container.

[Brief description of drawings]

FIG. 1 is a perspective view showing a paper container as one embodiment of the present invention.

2 is a development view of a blank for assembling the paper container shown in FIG. 1. FIG.

FIG. 3 is a perspective view showing a state during assembly.

FIG. 4 is a perspective view showing a state in which an extended portion is broken and a top seal portion is erected.

FIG. 5 is an explanatory diagram showing a modified example of a fractured part.

[Explanation of symbols]

 C Paper container 1 Flap 1a Extension part α Perforation (broken part) 1d Zipper (broken part)

Claims (1)

[Claims] 1. An extension portion is provided on one flap forming a top seal portion of a Gobel top type paper container, a break portion is provided across the extension portion, and a top is provided on a side opposite to the side where the extension portion is provided. A paper container characterized in that the seal portion is tilted down and stopped at a portion before the breaking portion to make the upper portion flat.