JP3043651B2 - Self-supporting container and liquid filling container using the self-supporting container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-contained container for filling contents and maintaining self-sustainability, and a liquid filling container using the self-contained container.

[0002]

2. Description of the Related Art As this type of self-supporting container, there is known a container having a gusset portion made of a laminate film and having both side portions. In this case, the self-supporting container is configured by disposing a gusset part folded in two between both side parts, and connecting the both side part and the gusset part by a side heat seal part and a lower end heat seal part. Further, as a liquid filling container for filling a liquid beverage such as a sports drink or orange juice, a bag-like container having a gusset portion made of a flexible film, and a flange portion having a flange portion and a conduit portion, and the flange portion is a bag-like container body. And a take-out device fixed to the open end of the device described in, for example,
No. 34826.

[0003]

In the above-mentioned self-contained container, the lower end is bent to one side in a state where the contents are filled, and is displayed on a shelf as a support surface, but the contents to be filled are lightweight. Then, the bent lower end portion is repelled by the elasticity of the material and rises up, so that the self-supporting container is in a state of easily falling down, and the self-sustainability cannot be ensured. In addition, the liquid filling container using the self-supporting container, similarly,
Depending on the content to be filled, self-sustainability cannot be ensured due to the elasticity of the lower end.

[0004] The present invention has been made in view of the above points, and an object of the present invention is to provide a self-contained container which secures self-standing stability when displayed on a shelf, and a liquid filling container using the self-contained container. I do.

[0005]

According to the present invention, there is provided a self-contained container comprising:
A lower heat-seal portion comprising a horizontal heat-seal portion and a diagonal heat-seal portion extending in an oblique direction from the horizontal heat-seal portion; Is cut out along a part of the lower end heat seal portion or a portion adjacent to the lower end heat seal portion except for both side portions, and divided into two portions, and the two lower end portions are bent in opposite directions to become support portions. This ensures independence stability when displayed on shelves. The liquid-filled container of the present invention has a container main body having a gusset part folded inward and a double-sided part, an ejection tool having a flange part and a conduit part, and an ejection tool having the flange part fixed to an open end of the container main body, The lower end heat seal portion of the main body is composed of a horizontal heat seal portion and an oblique heat seal portion extending obliquely from the horizontal heat seal portion, and the lower end portion is part of the lower end heat seal portion or the lower end heat seal except for both side portions. Cut out along the part adjacent to the part and split it into two parts,
The two lower end portions are bent in opposite directions to form support portions, thereby ensuring self-standing stability when displayed on a shelf.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a perspective view of a free-standing container according to the invention. The self-supporting container 1 has a front part 2, a rear part 3, and gusset parts 4, 4 which are located between these surface parts 2, 3 and are folded inward.

In the self-standing container 1, as shown in FIGS. 1 and 2, the gusset portions 4, 4 are arranged so that the edges are aligned between the face portions 2, 3, and the gusset portions 4, 4 are in contact with the face portions. Portions 2 and 3 are connected by side heat seal portions 5 and 5 and a lower end heat seal portion 6. After filling the contents, the upper open end of the self-supporting container 1 is closed by forming a heat seal portion 1a by ordinary heat seal processing. The lower end of the self-supporting container 1 has side heat seal portions 5 and 5.
Are bent inward along a line L connecting the points P, P to form a bottom surface.

The lower end of the self-contained container 1 is closed by a lower end heat seal portion 6. The lower heat-seal portion 6 includes oblique heat-seal portions 7 and 8 extending obliquely downward from a portion P of the side heat-seal portions 5 and 5 and a side heat-seal portion at a portion Q near the lower end of the side heat-seal portion 5. 5,5
And a horizontal heat seal portion 9 extending in a direction orthogonal to the horizontal direction.

The lower end of the self-contained container 1 has an edge 7 'of a heat seal portion 7 extending obliquely while leaving at least a part of the side heat seal portions 5, 5, and an edge 9' of a horizontal heat seal portion 9. , And cut out along a cutout line formed along the edge 8 ′ of the heat seal portion 8. Therefore, the lower end of the self-supporting container 1 has two portions 10,
It is divided into eleven. The cutout line may extend over a part of the heat seal part 7, the horizontal heat seal part 9, and the heat seal part 8, or may be inside the heat seal part 7, the horizontal heat seal part 9, and the heat seal part 8. Good. When the lower end heat seal portion 6 is formed by the oblique heat seal portions 7 and 8 and the horizontal heat seal portion 9, the cutout line has a truncated triangular shape as shown in FIG. 6
Is a circular arc, the cutout line has a circular arc shape.

FIG. 3 is a diagram showing a bottom surface portion of the self-supporting container 1. In this case, the lower end of the self-supporting container 1 is bent to one side. The lower end of the self-supporting container 1 is divided into two parts 11, 12 by a cutout line. The cutout portion 10 at the lower end is folded back along a dotted line 12 at the center position, as indicated by the arrow in FIG. That is, the bottom portion of the self-supporting container 1 forms a support portion by bending the two portions 10 and 11 in opposite directions, as shown in FIG. 4, thereby ensuring self-supporting stability when displayed on a shelf. Is done.

As shown in FIG. 5, a double-sided portion 2, 3 and a gusset portion 4 of a self-supporting container 1 are made of a polyester film 14 having a thickness of 12 μm, an aluminum foil 15 having a thickness of 9 μm, and a stretched nylon film 16 having a thickness of 15 μm. And thickness 60μ ~ 12
It is made from a laminated film 18 of a 0 μ polyethylene film 17. Since the laminate film 18 is opaque and flexible, the self-supporting container 1 has an opaque and flexible structure as a whole.

In order to make the self-supporting container 1 transparent and flexible, the aluminum foil 15 having a thickness of 9 μ of the laminate film 18 is replaced with ethylene beer alcohol having a thickness of 9 μ. it can

FIG. 6 shows a liquid-filled container 20 made using the self-supporting container 1. This liquid-filled container 20
It comprises a self-contained container 1 and an extraction tool 23 having a flange portion 21 and a conduit portion 22. An opening 24 is formed in the upper part of the conduit part 22.

Next, a method of manufacturing the liquid container 20 according to the present invention will be described. First, this laminated film 1
8 is cut along predetermined dimensions to prepare a film to be the two-sided portions 2 and 3 and a film to be the gusset portions 4 and 4.
In this case, it is preferable to make the width dimensions of the two-sided portions 2 and 3 and the gusset portion 4 the same. The removal tool 23 is the same as that of the conventional structure.

Next, the film that becomes the gusset portions 4 and 4 is folded in two in the longitudinal direction, and the gusset portion film that is folded in two is attached to both sides of the surface portion film that becomes the one surface portion 2 of the container body (self-supporting container) 1. And the side edges of the gusset part film are aligned with the side edges of the face part film.

Next, the gusset portion film and the surface partial film are heat-processed (at 250 ° C. for 1 second) to temporarily fix appropriate portions of the pair of gusset portion films on the surface partial film. Next, the take-out device 23 is arranged on the gusset portions 4 and 4 temporarily fixed to the surface partial film so that the flange portion 21 is located above the gusset portions 4 and 4, and the container is placed on the take-out device 23. A surface partial film to be the other surface portion 3 of the main body 1 is disposed so as to overlap the surface partial film.

Next, the both surface portions 2, 3 of the container body 1, the gusset portions 4, 4 and the take-out device 23 are integrally connected by ordinary heat sealing means. In the liquid filling container 20 thus manufactured, since there is no gap between the flange portion 21 of the removal tool 23 and the inner ends of the gusset portions 4 and 4, no pinhole is formed in this portion. The opening end 13a between the removal tool 23 and the container body 1 secures a stable seal.

As shown in FIG. 2, a lower end of the container body 1 is provided with a seal bar arranged to extend in a direction perpendicular to the longitudinal direction of the container body 1 and a diagonally upward direction with respect to the seal bar. The face film and the gusset film are heat-processed by the two seal bars (2).
(At 50 ° C. for 1 second).

The lower end of the container body 1 has an edge 7 'of the heat seal 7 extending obliquely while leaving at least a part of the side heat seals 5 and 5, and an edge 9 of the horizontal heat seal 9.
'And a cutout line formed along the edge 8' of the heat seal portion 8. Therefore, the container body 1
The lower end of the two parts 10, 11 along the cutout line
Is divided into

As shown in FIG. 4, the container body 1 is formed by bending the two lower end portions 10 and 11 in opposite directions.
The two parts 10, 11 form a support. As shown in FIG. 7, as shown in FIG. 7, the liquid-filled container 20 has the two portions 10 and 11 forming a supporting portion, so that the liquid-filled container 20 can maintain self-standing stability when displayed on a shelf.

[0021]

As described above, according to the present invention, the lower end portion of the container is cut out while leaving both side portions, divided into two portions, and the two lower end portions are bent in opposite directions to form the support portion. By doing so, the independence stability when displayed on the shelf is ensured.

[Brief description of the drawings]

FIG. 1 is a perspective view of a self-supporting container according to the present invention.

FIG. 2 is a diagram showing a lower end portion of a self-supporting container according to the present invention.
FIG. 3 is a cross-sectional view of an open end portion of the liquid filling container according to the present invention.

FIG. 3 is a diagram showing a cut-out portion of a lower end portion of a self-supporting container according to the present invention before bending.

FIG. 4 is a view showing a state after a cut-out portion of a bottom portion of the self-supporting container according to the present invention is bent.

FIG. 5 is a view showing a laminate film used as a material of a self-supporting container.

FIG. 6 is a perspective view showing a liquid-filled container according to the present invention with a part thereof broken away.

FIG. 7 is a view showing a use state of the liquid filling container of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Self-supporting container 2, 3 face parts 4 Gazette part 5 Side heat seal part 6 Lower heat seal part 7, 8 Oblique heat seal part 9 Horizontal heat seal part 10 Part 11 Part 20 Liquid filling container 21 Flange part 23 Extraction tool

Claims (5)

(57) [Claims] 1. A self-supporting container having a two-sided portion and a gusset portion disposed between the two-sided portions, wherein the gusset portion and the surface portion are joined by a side heat seal portion and a lower end heat seal portion. The part is composed of a horizontal heat seal part and a diagonal heat seal part extending obliquely from the horizontal heat seal part, and the lower end part is along the part adjacent to the lower heat seal part or the lower heat seal part except for both side parts. Cut it out and divide it into two parts.
A self-contained container characterized in that two parts are bent in opposite directions to form a support. 2. The self-supporting container according to claim 1, wherein the face portion and the gusset portion have the same width. 3. A liquid-filled container comprising: a container main body having a gusset part folded inward and a double-sided part; and an ejection tool having a flange part and a conduit part and having the flange part fixed to an open end of the container main body. The lower end heat seal portion of the container body is composed of a horizontal heat seal portion and an oblique heat seal portion extending obliquely from the horizontal heat seal portion, and the lower end portion is part of the lower end heat seal portion or the lower end heat seal portion except for both side portions. Cut out along the part adjacent to the seal part 2
A liquid-filled container, wherein the liquid-filled container is divided into two parts, and two lower end parts are bent in opposite directions to form support parts. 4. The self-supporting container according to claim 3, wherein the face portion and the gusset portion have the same width. 5. The liquid filling container according to claim 4, wherein each gusset portion is in contact with one surface of the flange portion of the removal tool.