JP2002193250A - Packing container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make arrangements so that a pull tab will not easily be removed from the body of a container even if outside force is applied thereto, and liquid food will not leak therefrom. SOLUTION: The container comprises a container body 12 having ripping parts 75, 76 at the portions corresponding to the inlet/outlet opening in the top wall 21, a first fixing part 61 heat-bonded to the prescribed portions adjacent to the ripping parts 75, 76, a lid body 62 heat-bonded to the ripping parts 75, 76, and a pull tab 56 that is equipped with second fixing parts 64, 65 which are heat-bonded to a front wall 13. Since the pull tab 56 is provided with the first fixing part 61 heat-bonded to the prescribed portions adjacent to the ripping parts 75, 76, with a lid body 62 heat-bonded to the ripping parts 75, 76, and with the second fixing parts 64, 65 heat-bonded to the front wall 13, the pull tab will not be easily removed from the body of the container 12 even if outside force is applied to the container body 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a packaging container.

[0002]

2. Description of the Related Art Conventionally, liquid foods such as milk, soft drinks, etc.
For example, it is sold in a packaging container made of a packaging material provided with a paper base material. The packaging container has a flat top wall
There are various brick-type and polyhedral-type packaging containers. Among these, for example, in a packaging container having a capacity that can be completely consumed by a purchaser at one time, a spout is formed on a top wall, and the spout is covered with a pull tab.

FIG. 2 is a perspective view of a conventional packaging container.

In FIG. 1, reference numeral 29 denotes a packaging container, and 30 denotes a container body. The container body 30 has a body 31 having a substantially octagonal cross section, extends upward from the body 31 and has a lower end. An upper end portion 32 having a substantially octagonal shape, an upper end having a substantially square shape, and extending downward from the body portion 31, an upper end having a substantially octagonal shape, and a lower end having a substantially square shape. Is provided. The body 31 includes a front wall 34, a rear wall (not shown), and two side walls 3.
5 (only one of the side walls 35 is shown in the figure), and four body connections disposed between the front wall 34 and each side wall 35 and between the rear wall and each side wall 35. The wall 36 (only one of the trunk connecting walls 36 is shown in the figure). The front wall 34, the rear wall, and the side wall 35
Each of the body connecting walls 36 has a rectangular shape.

The upper end 32 has a top wall 37, a front wall 38 connecting the top wall 37 and the front wall 34, a rear wall (not shown) connecting the top wall 37 and the rear wall, and a top wall 37. And a side wall 39 (only one of the side walls 39 is shown in the figure) connecting the top wall 37 and each body connecting wall 36 (in the figure, a side wall 39 thereof). Only one connecting wall 40 is shown). Each of the front wall 38, the rear wall, and the side wall 39 has a trapezoidal shape in which an upper bottom (a shorter one of two parallel sides) is placed below, and the connecting wall 40 is a top wall. It has a triangular shape with one vertex at 37.

The lower end 33 includes a bottom wall 41, a front wall 42 connecting the bottom wall 41 and the front wall 34, a rear wall (not shown) connecting the bottom wall 41 and the rear wall, and a bottom wall 41. A side wall 43 (only one of the side walls 43 is shown in the drawing) connecting the bottom wall 41 and each side wall 35, and a connecting wall 44 connecting the bottom wall 41 and each body connecting wall 36 (in FIG. Only one connecting wall 44 is shown.) Each of the front wall 42, the rear wall, and the side wall 43 has a trapezoidal shape with an upper bottom placed on the top, and the connecting wall 44 has a triangular shape with one vertex placed on the bottom wall 41. . Reference numeral 46 denotes a sealing portion formed at the center of the top wall 37;
Is an ear portion, and the ear portion 47 is fused to the side wall 39.

A spout 51 formed of a punch hole is formed at a predetermined position on the top wall 37. The pull tab 52 covers the spout 51 and also covers the periphery of the spout 51 and the portion of the front wall 38 that the lips contact when drinking. Accordingly, the pull tab 52 is peeled off from the container body 30 to open the spout 51 and the packaging container 29 is tilted to pour liquid food (not shown) from the spout 51 into a container such as a glass (not shown). Alternatively, the lips can be applied to the periphery of the spout 51 and the front wall 38 to directly drink.

[0008]

However, in the conventional packaging container 29, the spout 51 is formed in the container body 30 in advance.
If the container falls, an external force is applied to the container body 30, the pull tab 52 is easily peeled off from the container body 30, and the liquid food may leak.

[0009] The present invention solves the above-mentioned problems of the conventional packaging container, and provides a packaging container in which the pull tab does not easily come off from the container body even when an external force is applied to the container body, and the liquid food does not leak. The purpose is to provide.

[0010]

For this purpose, the packaging container of the present invention has a front wall, a rear wall, a side wall, a top wall and a bottom wall, and a break portion is formed in a portion corresponding to the spout on the top wall. The formed container body, a first fixing portion fused to a predetermined portion adjacent to the break portion, a lid (lid) body portion fused to the break portion, and a fusion bonded to the front wall. And a pull tab provided with a second fixing portion.

In another packaging container according to the present invention, the lid is disposed so as to be swingable with respect to the first fixing portion.

In still another packaging container according to the present invention, after the packaging container is opened, the second fixing portion remains on the front wall.

In still another packaging container according to the present invention, the second fixing portion is a knob.

[0014]

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

FIG. 1 is a perspective view of a packaging container according to a first embodiment of the present invention, FIG. 3 is a perspective view showing an opened state of the packaging container according to the first embodiment of the present invention, and FIG. FIG. 5 is a first diagram illustrating an opening operation of the packaging container according to the first embodiment, and FIG. 5 is a second diagram illustrating an opening operation of the packaging container according to the first embodiment of the present invention.

In the figure, reference numeral 11 denotes a packaging container, and 12 denotes a container body having an octagonal cross section.
2 comprises a front wall 13, a rear wall 17, and six rectangular side walls 14-16, 18-20, a top wall 21 and a bottom wall 22. The top wall 21 has a first base portion 23 formed continuously with the front wall 13 and a second base portion formed continuously with the rear wall 17.
Formed continuously with the base portion 24 and the side walls 14, 20 of
The seal portions 25, 2 fused to the first base portion 23
8, formed continuously with the side walls 16 and 18 and formed continuously with the seal portions 26 and 27 fused to the second base portion 24 and the side walls 15 and 19, Fused to the base parts 23, 24 and the seal parts 25 to 28,
It consists of flaps 53, 54 having a pentagonal shape.

In the first and second base portions 23 and 24, the seal portions 25 to 28 and the flaps 53 and 54 are fused to expose a pentagonal portion. In Nos. To 28, the flaps 53 and 54 are fused to expose a portion having a triangular shape.

A pull tab 56 is fused from the pentagonal portion of the first base portion 23 of the top wall 21 to the vicinity of the upper end of the front wall 13.
The pull tab 56 is fused to the packaging material at a predetermined timing before the packaging container 11 is formed by processing the packaging material, has a flat shape at that time, and the packaging container 11 is formed. Later, it has an "L" shape. The packaging material has a laminated structure, and for example, a polyethylene resin layer, an aluminum foil (foil) layer, an adhesive layer, a paper base, from the inside to the outside of the packaging container 11 after the packaging container 11 is formed. ,
It has a polyethylene resin layer and the like.

The pull tab 56 is integrally formed of a resin, and is formed on the top wall 21 at the top wall 21 side.
7 and a front wall side portion 58 located on the front wall 13 side, and a first thin portion 71 is formed between the top wall side portion 57 and the front wall side portion 58. Therefore, the front wall side portion 58 is arranged to be swingable with respect to the top wall side portion 57.

Further, the top wall side portion 57 is fused to the first base portion 23 and has a first fixing portion 61 having a triangular shape, and is disposed adjacent to the first fixing portion 61. And a lid portion 62 having a deformed hexagonal shape, which is fused to the first base portion 23, and a second thin wall is provided between the first fixing portion 61 and the lid portion 62. A portion 72 is formed. Therefore, the lid portion 62 is arranged to be swingable with respect to the first fixing portion 61.

The front wall side portion 58 is connected to the connecting portion 6.
3. It has second fixing portions 64 and 65 formed so as to extend along both side edges of the connecting portion 63, and a knob 66, and a third portion is provided between the connecting portion 63 and the knob 66. Thin part 73
However, between the connecting portion 63 and the second fixing portions 64 and 65, broken portions 75 and 76 formed of thin perforations are formed. Further, the connecting portion 63 is formed continuously with the lid portion 62 via the first thin portion 71, and the second fixing portion 6 is formed.
4 and 65 are formed separately from the lid 62. Therefore, the knob 66 is swingably disposed with respect to the connecting part 63, and the connecting part 63 is separably disposed with respect to the second fixing parts 64 and 65. Note that the second fixing portion 6
4 and 65 are fused to the front wall 13 while the connecting portion 6
3 and the knob 66 are not fused to the front wall 13, and are brought into contact with the front wall 13. In addition, the first to third thin portions 71 to 71
73 constitutes a hinge.

Then, as shown in FIG. 3, a rupture region 79 having a predetermined shape is formed in a portion of the first base portion 23 where the lid portion 62 is fused. The rupture region 79 is formed, for example, at the stage of manufacturing the packaging material by a predetermined method of the aluminum foil layer, the adhesive layer, and the paper base of the polyethylene resin layer, the aluminum foil layer, the adhesive layer, the paper base, and the polyethylene resin layer. Part is removed by a punch hole (not shown),
It is formed by fusing only the polyethylene resin layers to each other. The portion removed by the punch holes is a portion slightly inside the lid portion 62. 4 and 5, reference numeral 81 denotes a horizontal seal portion.

In the present embodiment, the fracture region 79
Is formed by removing predetermined portions of an aluminum foil layer, an adhesive layer and a paper base material by a punch hole, and fusing only the polyethylene resin layer to each other. Can also be formed.

In the packaging container 11 having the above-described configuration, the knob 66 in the state of FIG. 4 is gripped with a finger and moved in the direction of the arrow as shown in FIG. When rotated in the direction, the breaking portions 75 and 76 break, and the connecting portion 63 is peeled off from the second fixing portions 64 and 65. At this time, the second fixing portions 64 and 65 are
Remains. Subsequently, as shown in FIG.
Is rotated, the lid portion 62 is rotated with respect to the first fixing portion 61, the breaking region 79 is broken and peeled off from the first base portion 23, and the spout 83 is formed. You. Note that the rupture region 79 is formed by fusing only the polyethylene resin layer to each other and is thinner than other portions, so that the lid portion 62 is made thicker by that amount. Thus, the packaging container 11 can be opened.
Note that the broken region 79 after the break remains attached to the back surface of the lid portion 62.

Therefore, by tilting the packaging container 11, liquid food (not shown) is poured from the spout 83 into a container such as a glass (not shown), or the liquid food is directly drunk by putting the lips against the periphery of the spout 83 and the front wall 13. Or you can.

When the knob 66 is turned in the direction opposite to the arrow shown in FIG. 3, the spout 83 is closed by the lid 62, so that the opened packaging container 11 is sealed. be able to. In this case, the connecting portion 63 is inserted between the second fixing portions 64 and 65, but the connecting portion 63 and the second
Since the fixing portions 64 and 65 are broken as the packaging container 11 is opened, it can be easily determined whether the packaging container 11 has been opened by mischief.

As described above, the pull tab 56 is attached to the first fixing portion 6 fused to a predetermined portion adjacent to the break portion 79.
1. Since it has the lid part 62 fused to the break part 79 and the second fixing parts 64 and 65 fused to the front wall 13, for example, when the packaging container 11 falls, the container body Even if external force is applied to the container 12, the container 12 is not easily peeled off from the container body 12. Further, by rotating the lid portion 62 with respect to the first fixing portion 61, the break region 79 is broken and the spout 83 is formed, so that the liquid food does not leak. .

Next, a method of fusing the pull tab 56 to the packaging material will be described.

FIG. 6 is a conceptual diagram of a filling machine according to the first embodiment of the present invention, and FIG. 7 is a perspective view showing a state where a pull tab is fused to a packaging material according to the first embodiment of the present invention. .

In the drawing, reference numeral 85 denotes a reel set on a filling machine (not shown), and 86 denotes a web-like packaging material fed from the reel 85. The web-like packaging material 86
While being conveyed by the conveying rollers 87 and 88, FIG.
As shown in FIG. 6, the pull tab 56 is fused to form a tubular packaging material 89, between which the liquid food (not shown) is filled in the direction of the arrow shown in FIG. Subsequently, the tubular packaging material 89 is sealed in the horizontal direction at predetermined intervals to form a pillow-shaped container prototype 90. Then, the container prototype 90 is separated, processed by a predetermined processing device (not shown), and the packaging container 11 is formed. In the present embodiment, the pull tab 5
6 is adapted to be fused to the packaging material 86, but it can also be formed directly on the packaging material 86 by injection molding.

Next, a second embodiment of the present invention will be described. In addition, about what has the same structure as 1st Embodiment, the description is abbreviate | omitted by attaching the same code | symbol.

FIG. 8 is a perspective view of a packaging container according to a second embodiment of the present invention, FIG. 9 is a perspective view showing an opened state of the packaging container according to the second embodiment of the present invention, and FIG. FIG. 11 is a first diagram illustrating an opening operation of a packaging container according to the second embodiment, and FIG. 11 is a second diagram illustrating an opening operation of the packaging container according to the second embodiment of the present invention.

In this case, the front wall side portion 58 has a connecting portion 91 and a knob 66, and a third thin portion 73 is formed between the connecting portion 91 and the knob 66, and the knob 66 is connected to the connecting portion. It is disposed so as to be swingable with respect to 91. The knob portion 66 is fused with a weak fusion force to a fusion portion 92 formed at a position corresponding to the knob portion 66 on the front wall 13, while the connecting portion 91 is fused to the front wall 13. 13 without being fused
It is brought into contact with the front wall 13. In the present embodiment, the knob 66 is fused to the front wall 13 and also serves as a second fixing part.

In the packaging container 11 having the above configuration, FIG.
8 is gripped with a finger, moved in the direction of the arrow as shown in FIG. 8, peeled off from the fusion portion 92, and rotated in the direction of the arrow as shown in FIGS. Then, the break region 79 is broken and the first base portion 2
3 and thereafter a spout 83 is formed.

In this case, since the knob 66 and the fused portion 92 are broken as the packaging container 11 is opened,
It can be easily determined whether the packaging container 11 has been opened by mischief.

As described above, the pull tab 56 is attached to the first fixing portion 6 fused to a predetermined portion adjacent to the break portion 79.
1. Since it has the lid portion 62 fused to the break portion 79 and the knob portion 66 fused to the front wall 13, for example, when the packaging container 11 falls, an external force is applied to the container body 12. However, it does not easily come off the container body 12. Further, by rotating the lid body portion 62 with respect to the first fixing portion 61, the breaking region 79 is broken,
Since the spout 83 is formed, the liquid food does not leak.

In the present embodiment, the front wall side portion 58
Is formed by the connecting portion 91 and the knob 66, but the front wall side portion may be formed only by the knob.

It should be noted that the present invention is not limited to the above-described embodiment, but can be variously modified based on the gist of the present invention, and they are not excluded from the scope of the present invention.

[0039]

As described above in detail, according to the present invention, a packaging container includes a front wall, a rear wall, a side wall, a top wall and a bottom wall, and a portion corresponding to a spout in the top wall. , A first fixing portion fused to a predetermined portion adjacent to the broken portion, a lid portion fused to the broken portion, and a fused portion to the front wall. And a pull tab provided with a second fixing portion.

In this case, the pull tab is fused to the first fixing portion fused to a predetermined portion adjacent to the broken portion, the lid portion fused to the broken portion, and the front wall. Since the second fixing portion is provided, for example, when the packaging container falls, even if an external force is applied to the container main body, the packaging container does not easily come off from the container main body. Further, by rotating the lid with respect to the first fixing portion, the breaking area is broken and a spout is formed, so that the liquid food does not leak.

[Brief description of the drawings]

FIG. 1 is a perspective view of a packaging container according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a conventional packaging container.

FIG. 3 is a perspective view showing an opened state of the packaging container according to the first embodiment of the present invention.

FIG. 4 is a first diagram illustrating an opening operation of the packaging container according to the first embodiment of the present invention.

FIG. 5 is a second diagram illustrating an opening operation of the packaging container according to the first embodiment of the present invention.

FIG. 6 is a conceptual diagram of a filling machine according to the first embodiment of the present invention.

FIG. 7 is a perspective view showing a state where the pull tab is fused to the packaging material according to the first embodiment of the present invention.

FIG. 8 is a perspective view of a packaging container according to a second embodiment of the present invention.

FIG. 9 is a perspective view showing an opened state of the packaging container according to the second embodiment of the present invention.

FIG. 10 is a first diagram illustrating an opening operation of the packaging container according to the second embodiment of the present invention.

FIG. 11 is a second diagram illustrating an opening operation of the packaging container according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Packaging container 12 Container main body 13 Front wall 14-16, 18-20 Side wall 17 Rear wall 21 Top wall 22 Bottom wall 56 Pull tab 61 First fixing part 62 Lid part 64, 65 Second fixing part 66 Knob part 75 , 76 Break part 83 Spout

Claims (4)

[Claims] 1. A container body comprising: (a) a front wall, a rear wall, a side wall, a top wall, and a bottom wall, wherein a break portion is formed at a portion corresponding to a spout on the top wall; A first fixing portion fused to a predetermined portion adjacent to the portion, a lid portion fused to the break portion, and a pull tab having a second fixing portion fused to the front wall. A packaging container characterized by the above-mentioned. 2. The packaging container according to claim 1, wherein the lid is swingably disposed with respect to the first fixing portion. 3. The packaging container according to claim 1, wherein after opening the packaging container, the second fixing portion remains on the front wall. 4. The packaging container according to claim 1, wherein the second fixing portion is a knob.