JP2003341651A - Disposable packaging vessel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disposable packaging vessel which is excellently convenient and easily recycled after the use. <P>SOLUTION: An affixing part of a cardboard 5 having a plurality of folding lines 6 is affixed to an inner side of a side surface part 7 opposite to an affixing part in the longitudinal direction of the cardboard 5 to form a cylindrical vessel body 2. A lower end part of the vessel body 2 is returned inward of the vessel body 2 to form a supporting part 15. A bottom plate 3 is fitted on the supporting part 15 to cover an opening part 12 of the vessel body 2. A lid body 4 is detachably fixed to an outer side of a folded part 23 of the upper opening part 12 of the vessel body 2 via a fitting part 28. Since the vessel body 2, the bottom plate 3 and the lid body 4 are formed in a plate, they are not bulky before packaging food. When food is packaged, the vessel body 2 is deformed to a shape agreed with the shape of the bottom plate 3 along the folding lines 6 only by changing the shape of the bottom plate 3. The vessel is excellently convenient, and easily recycled after the use. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable packaging container for packaging food such as bento.

[0002]

2. Description of the Related Art Conventionally, disposable packaging containers of this type are
For example, the container body is preliminarily formed into a box shape with a synthetic resin such as polyethylene or polypropylene.

Then, in a state where an object to be packaged such as a lunch box is packaged in the container body, a lid body preformed with a synthetic resin such as polyethylene or polypropylene is fitted over the container body. To do.

[0004]

However, since the container body and lid of the packaging container described above are made of synthetic resin or the like, it is not easy to recycle the packaging container after use. Further, since this packaging container is preformed with a synthetic resin, it is bulky without packaging the article to be packaged and various types must be prepared according to the type and shape of the article to be packaged. It has a problem that it is not easy to use.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a disposable packaging container which is easy to use and can be easily recycled after use.

[0006]

According to a first aspect of the present invention, there is provided a disposable packaging container in which both ends of a substantially rectangular paperboard material having a plurality of folding lines formed substantially along the vertical direction are attached. A container main body having a support portion formed in a substantially cylindrical shape having an opening in the vertical direction and having a lower end portion folded back inward of the container main body; and a container body formed of paperboard material and mounted on the support portion. It is provided with a bottom plate that closes the opening of the container body, and a lid body that is formed of paperboard material and is detachably fixed to the opening above the container body.

Then, both ends of a substantially rectangular paperboard material having a plurality of folding lines formed substantially along the vertical direction are adhered to each other to form a substantially cylindrical container body having an opening in the vertical direction, The lower end of the container body is folded back inside the container body to form a support, and the bottom plate made of paperboard material is mounted on the support to close the opening of the container body and made of paperboard material. The lid is detachably fixed to the upper opening of the container body. As a result, before packaging the object to be packaged, the container body, the bottom plate and the lid can be formed into a plate shape so that the container body is not bulky. Along with the fold line of, it can be transformed into a shape that matches the shape of this bottom plate, making it easy to use and
Recycling after use becomes easy.

The container for disposable packaging according to claim 2 is the container for disposable packaging according to claim 1, wherein the lid is provided integrally with the lid so as to project outward from an outer edge portion of the lid. An attachment portion is detachably attached to the outer surface of the main body to fix the lid body to the upper opening of the container body.

Then, a mounting portion projecting from an outer edge portion of the lid body and integrally provided with the lid body is detachably attached to an outer side surface above the container body, and the lid body is fixed to an opening above the container body. By doing so, it becomes possible to prevent the lid body from coming into contact with the article to be packaged in the container body and hygienically package the article to be packaged.

According to a third aspect of the present invention, there is provided the disposable packaging container according to the first or second aspect, wherein the lid has a through hole to which a translucent sheet is attached in a substantially central region. It is a thing.

By providing a through hole in the substantially central region of the lid and attaching a translucent sheet to the through hole, the container body is attached to the container body even when the lid body is attached to the upper opening of the container body. Since the packaged object to be packaged is exposed to the outside of the container body through the through hole of the lid, it is possible to confirm the object to be packaged from the outside.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The construction of one embodiment of the disposable packaging container of the present invention will be described below with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a disposable packaging container for packaging food such as bento as an object to be packaged. The disposable packaging container 1 includes a container body 2, a bottom plate 3 and a lid 4. ing.

Here, as shown in FIG. 2, the container body 2 is formed of a paper board material 5 having a substantially elongated rectangular shape. The paperboard material 5 is formed with a plurality of, for example, 29 folding lines 6 substantially along the width direction of the paperboard material 5 and spaced from each other in the longitudinal direction of the paperboard material 5 at substantially equal intervals. Each of the substantially rectangular regions of the paperboard material 5 surrounded by the folding line 6 is 30 side surface portions 7. In addition, a substantially rectangular sticking portion 11 is formed at a side edge of the side surface portion 7 which is one end in the longitudinal direction of the paperboard material 5 via a fold line 8 formed along the side edge. Is formed integrally with the paperboard material 5 so as to project in the longitudinal direction. This pasting part 11
The container body 2 is attached to the inner surface of the side surface portion 7 at one end on the opposite side to the attachment portion 11 in the longitudinal direction of the container body 2 by, for example, an adhesive, so that the container body 2 extends in the width direction of the paperboard material 5, that is, the container body 2 The opening 12 is formed in a substantially cylindrical shape with the opening 12 formed in the up-down direction, and the opening 12 is deformable by each side surface portion 7.

Further, a folding line 13 is formed on the lower end side of the container body 2 substantially along the longitudinal direction of the paperboard material 5, and a plurality of folding lines 13 are formed on the folding line 13 along the folding line 13. For example, in every four folds of the folding line 6, that is, every three folds of the side surface 7, a total of 10 cut portions 14 are formed over three folds of the folding line 6, that is, two side surfaces. The folding line 13 folds the lower end of the container body 2 inwardly of the container body 2 and cuts these side surfaces 7
A portion surrounded by 14 and the folding line 6 projects inward of the container body 2 to form a support portion 15.

A fold line 21 is formed on the upper end side of the container body 2 substantially along the longitudinal direction of the paperboard material 5.
This fold line 21 is a fold line in the vertical direction of the container body 2.
It is formed at a position substantially symmetrical to that of 13. In addition, at the upper edge of the paperboard material 5, a plurality of, for example, 2
Two notches 22 are formed up to the folding line 21.
These notches 22 are formed at positions symmetrical to each other with respect to the center of the container body 2, and the fold line 21 in the paperboard material 5 is formed.
A region surrounded by these cutouts 22 is a bent portion 23 having a substantially rectangular shape. The bent portion 23 is bent outward along the folding line 21 to form the edge of the opening 12 of the container body 2.

On the other hand, the bottom plate 3 is formed of a paperboard material 24 into a substantially circular shape. The bottom plate 3 is formed such that its outer peripheral dimension is substantially equal to the longitudinal dimension of the paperboard material 5. Therefore, when the bottom plate 3 is fitted inside the container body 2 and mounted on the support portion 15, the outer peripheral portion of the bottom plate 3 substantially coincides with the inner peripheral portion of the container body 2, and The second opening 12 is closed, and food or the like to be packaged is accommodated between the upper surface of the bottom plate 3 and the upper end of the container body 2.

Further, the lid body 4 is formed of a paperboard material 25 having a radius slightly larger than that of the bottom plate 3, and the substantially central region of the paperboard material 25 is smaller than the opening of the container body 2. A through hole 26 having a radial dimension is formed. A translucent sheet 27 formed of, for example, transparent cellophane is attached to the through hole 26, and the inside of the container body 2 is exposed to the outside of the container body 2 through the sheet 27. Exposed. Further, a plurality of, for example, four, substantially rectangular mounting portions 28 projecting outward of the lid body 4 are provided on the outer edge portion of the paperboard material 25 via folding lines 29, respectively, integrally with the lid body 4. Has been formed. These mounting parts 28 are made of paperboard material.
They are provided at substantially equal angles in the circumferential direction of 25, that is, at intervals of approximately 90 °, and are bent below the lid body 4 via fold lines 29. By attaching these mounting portions 28 to the outer surface of the bent portion 23 of the container body 2 with, for example, an adhesive agent that is easily peeled off, the lid body 4 is formed.
Is detachably fixed to the opening 12 above.

Next, the assembling method and operation of the above embodiment will be described.

First, while bending the sticking portion 11 of the paperboard material 5 from the folding line 8, the side surface portion 7 at the other end in the longitudinal direction of the paperboard material 5 is bent.
The container body 2 is formed by adhering it to the inner surface of the container via an adhesive or the like.

Next, the lower end of the container body 2 is folded inwardly through the fold line 13 so as to be superposed on the inner surface of the container body 2, and these are formed on the side surface portion 7 through the notch 14. A portion surrounded by the notch portion 14 and the folding line 6 is projected inward of the container body 2 to form a support portion 15.

Further, by bending the upper end of the container body 2 through the folding line 21 toward the outside of the container body 2,
The bent portion 23 is formed. At this time, the bent portion 23 is easily formed by the cutout portion 22.

After that, the bottom plate 3 is mounted on the support portion 15 of the container body 2. At this time, the container body 2 and the opening 12 of the container body 2 are deformed by the folding line 6 into a shape along the outer shape which is the shape of the bottom plate 3.

At the connecting portion between the outer peripheral portion of the bottom plate 3 and the inner peripheral portion of the container body 2, butter roll paper (not shown),
So-called wax paper is hot-pressed and fused at, for example, about 130 ° C.

Then, the lid body 4 is fitted over the container body 2 in a state where food such as bento is stored in the container body 2, and the mounting portion 28 of the lid body 4 is bent at the bent portion of the container body 2. 23,
For example, the lid body 4 is detachably fixed above the opening 12 of the container body 2 by adhering the lid body 4 with an adhesive agent that can be easily peeled off.

As described above, according to the above-described embodiment, the sticking portion 11 of the substantially rectangular paperboard material 5 having the plurality of folding lines 6 formed substantially along the vertical direction and the paperboard material. 5 is adhered to the opposite side in the longitudinal direction of the sticking portion 11 to form a substantially cylindrical container body 2 having an opening 12 formed in the vertical direction, and the lower end of the container body 2 is formed into a fold line 13. Along the inside of this container body 2 is folded back to form the support portion 15,
The bottom plate 3 formed by 24 is mounted on the support portion 15 to close the opening 12 of the container body 2, and the lid 4 formed by the paperboard material 25 can be removed from the opening 12 above the container body 2. Fixed to. As a result, the container body 2, the bottom plate 3 and the lid 4 can be formed into a plate shape before packaging food or the like so that the container body is not bulky, and when packaging food or the like, simply changing the shape of the bottom plate 3 2 is the bottom plate 3 along a plurality of fold lines 6
It can be transformed into a shape that matches the outer shape of the product, making it easy to use, and easily recycling after use.

Further, a mounting portion 28 that is provided integrally with the lid body 4 so as to project from the outer edge portion of the lid body 4 is detachably attached to the upper outer surface of the container body 2 to attach the lid body 4 to the container body 2. By fixing it to the opening 12 above the lid 4,
It is possible to hygienically package the food or the like by preventing contact with the food or the like packaged in the container body 2.

Further, by providing a through hole 26 in the substantially central region of the lid body 4 and attaching a translucent sheet 27 to the through hole 26, the lid body 4 is provided in the opening 12 above the container body 2. Even in the attached state, the food or the like packaged in the container body 2 is exposed to the outside of the container body 2 through the through hole 26 of the lid 4, so that the food can be confirmed from the outside.

Then, a brazing paper such as butter roll paper is welded to the connecting portion between the outer peripheral portion of the bottom plate 3 and the inner peripheral portion of the container main body 2 by a hot press, whereby the container main body is heated by the heat of the hot press. Since the inside of 2 is sterilized, more food can be packaged in a hygienic manner.

Further, since the cutout portion 22 is formed on the upper end side of the paper board material 5, the bent portion 23 can be easily bent to the upper side of the paper board material 5.

In addition, in the above-mentioned one embodiment, the bottom plate 3
Can have various shapes such as a rectangular shape, a triangular shape, or an elliptical shape if the outer peripheral dimension is formed to be substantially equal to the longitudinal dimension of the paperboard material 5, and is not limited to the circular shape. . Also in these cases, the container body 2 can be deformed into a shape along the outer shape of the bottom plate 3.

Further, the side surface portion 7 of the container body 2 may be formed more or less.

Further, the lid 4 is formed in a shape substantially along the bottom plate 3.

The through hole 26 of the lid 4 is formed in the container body 2
If the food stored in the container body 2 can be made into various shapes and sizes, if the food stored in the container body 2 does not need to be confirmed, the through hole 26 is formed in the lid 4. It may not be formed.

[0035]

According to the disposable packaging container of the first aspect, both ends of a substantially rectangular paperboard material having a plurality of folding lines formed substantially along the up-down direction are adhered to each other and the up-down direction is applied. To form a substantially cylindrical container body, and the lower end of the container body is folded back inwardly of the container body to form a support part,
A bottom plate made of paperboard material is mounted on the support to close the opening of the container body, and a lid made of paperboard material is detachably fixed to the opening above the container body. As a result, before packaging the object to be packaged, the container body, the bottom plate and the lid can be formed into a plate shape, so that the container body is not bulky. It can be transformed into a shape that matches the shape of this bottom plate along the fold line, and it is easy to use and can be easily recycled after use.

According to the container for disposable packaging of the second aspect, the lid is detachably attached to the upper outer surface of the container body so as to project from the outer edge of the lid and integrally provided with the lid. By fixing the body to the upper opening of the container body, it is possible to prevent the lid body from contacting the packaged object packaged in the container body and hygienically package the packaged object.

According to the disposable packaging container of the third aspect, a through hole is provided in a substantially central region of the lid body, and a translucent sheet is attached to the through hole, so that the opening is provided above the container body. Even when the lid is attached, the packaged object packaged in the container main body is exposed to the outside of the container main body through the through hole of the lid body, so that the packaged object can be confirmed from the outside.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a disposable packaging container of the present invention.

FIG. 2 is a plan view showing a container body of the disposable packaging container of the above.

FIG. 3 is a plan view showing a lid of the disposable packaging container of the above.

[Explanation of symbols]

1 Disposable packaging containers 2 container body 3 bottom plate 4 Lid 5,24,25 Paperboard material 6 fold lines 15 Support 26 through hole 27 sheets 28 Mounting part

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3E060 AA01 AA11 AB32 BA24 BC04                       CB03 CB07 CB16 CG10 DA22                       DA23 DA25 EA06 EA13                 3E084 AA05 AA12 AA34 AB10 DA01                       DB11 DC07 FA09 FC11 GB12                       JA10 LA17 LB02 LB07

Claims (3)

[Claims] 1. A substantially rectangular paperboard material having a plurality of folding lines formed substantially along the up-down direction is attached to both ends thereof, and is formed into a substantially cylindrical shape having an opening in the up-down direction. A container body having a support part formed by folding back inside the container body, a bottom plate formed of paperboard material and mounted on the support part to close the opening of the container body, and formed of paperboard material And a lid that is detachably fixed to an opening above the container body. 2. The lid body projects outward from an outer edge portion of the lid body, is integrally provided with the lid body, and is detachably attached to an outer surface of the container body so that the lid body is located above the container body. The disposable packaging container according to claim 1, further comprising an attachment portion fixed to the opening. 3. The disposable packaging container according to claim 1, wherein the lid body has a through hole to which a translucent sheet is attached in a substantially central region.