JP2002326633A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container in which a flap forming a lid plate can be easily opened/closed, the flap is suspended parallel to a cylindrical body when the flap is opened, and the flap forms no obstacle in the work. SOLUTION: Inner flaps 12 and 14 and outer flaps 11 and 13 are provided on a peripheral edge of a lid side A in the cylindrical body 10 of the packaging container, and flaps 21, 22, 23 and 24 are provided on the peripheral edge of a bottom side B. The inner flaps and the outer flaps are formed separately from the cylindrical body 10. The cylindrical body 10 is connected to the inner flaps and the outer flaps respectively via flexible sheet-like connection bodies 111, 121, 131, and 141. The sheet-like connection bodies are sewn to the cylindrical body 10, the inner flaps and the outer flaps with a sewing thread 3. Decorative sheets 112, 122, 132 and 142 are provided on edge parts of the inner flaps and the outer flaps except parts with the sheet-like connection bodies sewn thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a packaging container. More specifically, the present invention relates to a packaging container in which, for example, when a wall serving as a lid is opened, the wall hangs down in parallel (parallel) with the cylindrical main body. In addition, the present invention relates to a packaging container that can easily accommodate or take out a contained item and that can be folded small before or after use. Further, the present invention relates to a packaging container capable of improving the strength of a cylindrical main body as required.

[0002]

2. Description of the Related Art Using a corrugated cardboard, a quadrangular cylindrical tubular body composed of four side walls and four flaps extending continuously from the peripheral edges of both ends of the tubular body are integrally formed. The packaging container of the structure in which the lid plate and the bottom plate are formed by folding each flap inward,
Light and strong, it is widely used in various industrial fields.

A packaging container having this structure is folded flat so as not to require a storage space when not in use (during storage), and is assembled into a box when used. Assembling, the folded cylindrical body into a three-dimensional cylindrical shape, the flap constituting the bottom plate is folded inward, the flap constituting the lid plate is folded outward at first, and after the contents are stored, it is inward. Used to be bent.

[0004]

A conventional packaging container using corrugated cardboard has a restoring force (has an elastic force) even when it is bent at the folding line, and therefore, the flap is not provided. In the case of, a force to return to the original state from the folded state acts, and it is difficult to maintain the folded state (it is difficult to form a bending habit).

[0005] The flap serving as the bottom plate can be stopped with an adhesive tape or a stapler or the like so as not to return to the original position. However, the flap serving as the lid plate cannot be stopped until the contents are stored. For this reason, even if the flap is once bent outward by 180 degrees, it is in a state of projecting in the horizontal direction.

[0006] Therefore, it is difficult for an operator to approach the packaging container to perform the operation, and the operator has to store or take out the stored item while holding the stored item in the middle. In particular, when the contents are heavy, the workers are very tired, and it is difficult to work for a long time, and the working efficiency is poor.

Further, when a plurality of containers are arranged with the flap opened, the flaps become a hindrance, making it impossible to reduce the interval between adjacent containers, and the work space cannot be used effectively. Further, even when an article is stored by using an automatic packaging apparatus equipped with a conveyor, the overhang of the flap is a hindrance, and automation cannot be easily performed. In addition, the flap is difficult to maintain in a folded state,
Before or after use of the packaging container, the flap could not be folded and the packaging container folded small.

By the way, the present inventor has been intensively studying a packaging container having strength and durability more than that of a cardboard packaging container. Attention has been paid to a plate-like object integrally formed by connecting a plastic plate described in the above section with a plastic connecting body (web), and an attempt has been made to commercialize it.

[0009] If this material is thick, it cannot be folded as it is because it has rigidity.
Extremely difficult. Even if the thickness is thin, since it has elasticity, for example, when this is used for a packaging container in which a cylindrical main body and a flap are integrally formed, the force to return to the same as that of corrugated cardboard, or further It is difficult to bend the flap and to prevent the flap from overhanging after bending.

[0010] In addition, packaging containers are often stacked during transportation or storage. In that case, the lower packaging container must support the weight from above,
Support strength is required.

Further, when it is necessary to more sufficiently protect the contents against an external impact, or when the contents are like a blade of various machine tools, the contents may be affected to the outside to prevent injury. In some cases, it is necessary not to provide the container, and a packaging container that can handle such a case is also desired.

The inventor of the present invention may solve the above-mentioned problem by forming the tubular body and the flap separately and connecting or connecting the tubular body and the flap with another connecting body. The research was advanced based on this idea.

A structure using a hinge, for example, can be considered as the above-mentioned connecting body. However, when the hinge is attached to the cardboard or plastic plate and the flap is repeatedly opened and closed, the load is concentrated on the attachment portion of the hinge, and the cardboard or plastic plate at the attachment portion is cracked. Therefore, there is a high possibility that the connection structure is broken.

In addition, due to the structure of the hinge, a slight gap is formed between the cylindrical body and the flap. Therefore, when the stored material is a small part or a powdery material, the stored material can fall out of the gap. When transporting the stored items in a cool state, there is an inconvenience that cool air leaks from the gap.

The inventor of the present invention has made further studies and found that the tubular body and the flap are connected or connected by a flexible or flexible sheet-like connecting member such as cloth, and the connection or connection is sewn. This has been found to be an extremely effective means for solving the above-mentioned problems, and the present invention has been completed.

(Object of the present invention) Therefore, another object of the present invention is to make it easy to open and close a wall serving as a lid, so that when the wall is opened, the wall hangs in parallel (parallel) with the cylindrical main body. The present invention is to provide a packaging container which has been prepared as described above. Another object of the present invention is to provide a packaging container that can easily accommodate or take out the contents and that can be folded small before or after use. Still another object of the present invention is to provide a packaging container capable of improving the strength of a cylindrical main body as required. Other objects of the present invention will become apparent from the following description.

[0017]

Means of the present invention taken to achieve the above object are as follows. According to the first invention, there is provided a packaging container having an end closing element formed by bending at least one wall portion extending continuously from a peripheral edge of at least one end of a cylindrical main body to the inside, The tubular body and the wall are formed separately, and the tubular body and the wall are connected or connected by a flexible or flexible sheet-like connecting body. The connection or connection between the connecting member and the wall portion and the sheet-like connecting member is performed by sewing, and is a packaging container.

According to the second invention, three or four wall portions extending continuously from the peripheral edges of both ends of the cylindrical main body formed in a square cylindrical shape are formed by bending inwardly, respectively. A packaging container having an end closing element, wherein at least three or four walls located at least on a lid side of the cylindrical main body are formed separately from the cylindrical main body, and the cylindrical main body and the wall are formed. The parts are connected or connected by a flexible or flexible sheet-like connected body, and the connection or connection between the tubular main body and the sheet-like connected body and between the wall and the sheet-like connected body is performed by sewing. A packaging container, characterized in that:

According to a third aspect of the present invention, the wall portion formed by bending inward to form an end closing element is configured to be fixed by a hook-and-loop fastener. It is a packaging container according to the invention.

According to the fourth aspect of the present invention, the wall which is bent inward to form the end closing element is configured to be fixed by a hook-and-loop fastener.
A packaging container according to the first or second invention, wherein the packaging container is configured to be fixed in a folded state.

According to a fifth aspect of the present invention, at least one portion of the tubular main body is formed with a tubular main body when connected, and the connecting portion is configured to be able to expand the cylindrical main body when the connection is released. Is a packaging container according to the first, second, third or fourth invention.

According to a sixth aspect of the present invention, there is provided a packaging container having four side walls rising from respective peripheral edges of a rectangular wall forming an end closing element on the bottom side. The wall and the side wall are formed separately, and the wall and the side wall are connected or connected by a flexible or flexible sheet-like connecting body. The connection or connection of the connection body is performed by sewing, and at least one of the four side walls is fixed to another adjacent side wall by a hook-and-loop fastener, which is a packaging container. .

According to a seventh aspect of the present invention, the material of the sheet-like connected body having flexibility or flexibility is cloth. It is a packaging container according to the invention.

According to an eighth aspect of the present invention, the material of the packaging container is made of cardboard, and a plastic plate having a face-to-face relationship with a space between them, connected by a plastic link. A packaging material according to the first, second, third, fourth, fifth, sixth or seventh invention, characterized in that it is any one or a combination of two or more selected from a plate-like material and a plastic plate. Container.

In the ninth aspect of the present invention, the material of the packaging container is formed by connecting plastic plates which are spaced from each other and face to face by a plastic connecting body. The four side walls which are plate-like objects and are formed from the respective side walls constituting the cylindrical main body, or from the respective peripheral edges of the square wall part forming the end closing element on the bottom side, are formed of the above-mentioned plate-like shape. Wherein two or more objects are stacked, and each of the side walls is connected or connected by a flexible or flexible sheet-like connecting body;
A packaging container according to the second, third, fourth, fifth, sixth, seventh or eighth invention.

(Operation) In the packaging container according to the present invention, the cylindrical main body and the wall are formed separately, and the cylindrical main body and the wall are flexible or flexible sheet-like connected bodies. The connection or connection between the tubular main body and the sheet-shaped connection body and the connection between the wall and the sheet-shaped connection body is performed by sewing, so that the wall corresponding to the lid plate is directed outward. Even when opened, the wall does not protrude in the lateral direction but hangs down due to gravity, and fits in parallel (parallel) with the tubular body.

As described above, since the wall portion hangs down by gravity without protruding in the lateral direction, the worker can work closer to the packaging container. Therefore, it is easy to store or take out the stored items. This advantage is particularly remarkable when the contents to be stored or taken out are heavy.
That is, holding a heavy object in the middle waist causes back pain, but the problem can be solved in the case of the packaging container according to the present invention.

Since the walls hang down by gravity without protruding in the horizontal direction, when a plurality of containers are arranged with their lids opened, the walls do not become an obstacle and the distance between adjacent containers can be reduced. Effective use of work place. This facilitates the storage of articles using the automatic packaging device provided with the conveyor.

Further, since the cylindrical body and the wall are connected by the sheet-shaped connecting member, unlike the case where the hinge is used as the connecting member, the load when opening and closing the wall is hardly concentrated locally. The connecting structure between the cylindrical body and the wall is hardly damaged.

Furthermore, if the entire periphery of the cylindrical main body and the wall is connected or connected with a sheet-like connecting body, unlike the case where the connecting is performed using a hinge, the space between the cylindrical main body and the wall is different. Is difficult to form a gap. Therefore, even when the stored object is a small component or a powdery material, there is almost no possibility that the stored object is dropped off, and even when the stored object is transported in a cool state, the inconvenience such as leakage of cold air hardly occurs.

Further, for example, when an adhesive or an adhesive is used for connecting or connecting the tubular body and the sheet-like connected body and the wall portion and the sheet-like connected body, the adhesive or the adhesive is used for the cylindrical body, Although it must be compatible with the wall and the sheet-like connected body, such consideration is not necessary in the case of sewing. Further, in the case of sewing, there is no possibility of peeling due to aging or temperature change unlike the case of an adhesive or an adhesive.

In a configuration in which a wall portion which is bent inward to form an end closing element can be fixed by a hook-and-loop fastener, an adhesive tape is not required for fixing a wall portion corresponding to a lid plate. Suitable for repeated use.

The wall which is bent inward to form the end closing element is configured to be fixed by a hook-and-loop fastener, and the packaging container is configured to be fixed in a folded state by the hook-and-loop fastener. In some cases, the folded packaging container can be fixed without using other fixing means such as a string, which is convenient.

In a case where a tubular body is formed at least at one position of the tubular body when the tubular body is connected and the tubular body can be expanded when the connection is released, the following is provided. Act on. First, the connection by the connecting portion is released, the tubular main body is deployed, and the packaging container is laid on the floor surface in an expanded state. Next, the stored object is placed on the side wall constituting the cylindrical main body, and then the cylindrical main body that has been developed by the connecting portion is connected again to wrap the stored object. The lid-side and bottom-side walls are then folded inwards, each constituting an end closure element, for packaging the contents. As described above, if the stored object is stored or taken out while the tubular main body is expanded, it is not necessary to lift the stored object at the time of storing or taking out. Therefore, even when the stored material is heavy, the stored material can be easily stored or taken out.

[0035] A packaging container having four side walls formed so as to rise from respective peripheral edges of a rectangular wall portion forming an end closing element on the bottom side, wherein the wall portion and the side wall are formed separately. The wall and the side wall are connected or connected by a flexible or flexible sheet-like connecting body,
The connection or coupling between the wall portion and the sheet-like connected body and between the side wall and the sheet-shaped connected body are performed by sewing, and at least one of the four side walls is fixed to another adjacent side wall by a hook-and-loop fastener. In this case, when the fixing by the hook-and-loop fastener is released and the side wall is opened outward, the side wall is flush or essentially flush with the wall corresponding to the bottom body, and an opening is formed. In this manner, the side wall is flush or essentially flush with the wall corresponding to the bottom body, so that the stored object can be easily stored or taken out without lifting the stored object above the side wall. This advantage is particularly remarkable when the contents to be stored or taken out are heavy.

The material of the packaging container is a plate-like material formed by connecting plastic plates having a face-to-face relationship with a space therebetween with a plastic connecting body. In the case of a packaging container in which two or more of the above plate-like objects are stacked, even if the packaging container is stacked during transportation or storage, the lower sidewall forming the cylindrical main body is sufficient. Since it has a high strength, deformation can be prevented.

When the side walls are laminated as described above, not only can the contents be more sufficiently protected against external impacts, but also the stored contents are the blades of various machine tools. In such a case, it is possible to prevent injuries because the effects of the stored items are not exerted outside.

[0038]

Embodiments of the present invention will be described with reference to the drawings. [Embodiment 1] FIG. 1 shows a first embodiment of a packaging container according to the present invention.
FIG. 5 is a perspective explanatory view showing a state where the tubular main body and the bottom flap are assembled, and the lid flap is opened outward. In FIG. 1, for the sake of explanation, the flaps 13 and 14 are shown opened in the horizontal direction.

The packaging container has four side walls 101, 10
2, 103 and 104, and has a tubular main body 10 having a rectangular outer shape. The cylindrical main body 10 has inner flaps 12 and 14 and outer flaps 11 and 13 which are four walls extending continuously from the periphery of the end on the lid side A. In the present embodiment, the long flap is the outer flap, but there is no problem even if the inner flaps 12 and 14 are set to the outside at the time of assembly.

The tubular main body 10 has four flaps 21, which are four walls continuously extending from the periphery of the bottom B end.
22, 23, 24 (flaps 21, 22, 23, 24
Are the inner flaps 12, 14 and the outer flaps 11, 14, respectively.
13 and a vertical relation, and only the flap 23 is shown in FIG. 1). And
By folding each flap 21, 22, 23, 24 inward, these flaps 21, 22, 23
23 and 24 constitute the end closure elements of the packaging container.

The inner flaps 12 and 14 and the outer flaps 11 and 13 located on the lid side A of the cylindrical main body 10 are formed separately from the cylindrical main body 10, respectively. On the other hand, the cylindrical main body 1
Four flaps 21, 22, 2 located on the bottom side B of 0
3 and 24 are formed integrally with the tubular main body 10 (as in the embodiment described later, they can be formed separately from the tubular main body 10 like the lid side A). .

The tubular main body 10, the inner flaps 12, 14 and the outer flaps 11, 13 are made of sheet-like connected bodies 111, 121, 131, 141 each having flexibility or flexibility.
Are linked or joined by

Reference numerals 112, 122, 132 and 142 represent
Of the outer peripheral portions of the inner flaps 12 and 14 and the outer flaps 11 and 13, the sheet-like connected bodies 111, 121, 131 and 14 are provided.
1 shows a decorative sheet covering a portion excluding a portion to which No. 1 is sewn. Reference numeral 3 denotes a sewing thread. The side walls 101, 102, 10 of the cylindrical main body 10
The decorative sheets 112, 122,
132 and 142 are provided.

FIG. 2 is a cross-sectional view for explaining the movement of the flap connected to the cylindrical main body by the sheet-shaped connecting member. The same or similar parts as those shown in FIG. 1 are denoted by the same reference numerals. This is the same in the following figures.

In the figure, (a) shows that the flaps are
The state where it hangs in parallel (parallel) with (side wall 101) is shown. (B) shows a state in which a flap is caused from the state of (a). (C) shows a state in which the flap is bent inward and the opening of the tubular main body 10 is closed. FIG. 2 shows the outer flap 11, but the same applies to the other inner flaps 12 and 14 and the outer flap 13.

In the present embodiment showing some specific examples of packaging containers, cloth (made of polypropylene or polyester) is used as a material of a flexible or flexible sheet-like connected body. Is used, but other woven fabrics, nonwoven fabrics, knitted fabrics, or other materials such as synthetic resin sheets, leather, and rubber can be used as long as they have flexibility or flexibility.

In the present embodiment, the material of the packaging container is a plastic connecting body (web) made of a plastic plate having a face-to-face relationship with a space therebetween.
Although a plate-like object (also referred to as a plastic cardboard, which is referred to as a “plastic cardboard” in the present embodiment) constituted by linking is used, it may be a paper cardboard or a solid cardboard. Plastic plate may be used. The thickness of the plate was 5 mm, but the thickness is not particularly limited.

In the example shown in FIG.
0 and the sheet-like connected bodies 111, 121, 131, 141, and the inner flaps 12, 14 and the outer flaps 11, 13 and the sheet-like connected bodies 111, 121, 131, 141 are connected or connected by a thread using a sewing machine. This is due to sewing. Thereby, they are mechanically connected or connected to each other.

As a material for the packaging container, a plastic cardboard having a hollow portion is used. Therefore, the load applied to the needle during sewing by the sewing machine is lower than when a solid plastic plate is used. Therefore,
Even if you use thick plastic cardboard or double plastic cardboard,
You can easily sew with a sewing machine.

Further, the interval between the sewing threads can be adjusted so that the needle of the sewing machine does not hit the connected body (web) made of plastic during sewing, that is, the needle of the sewing machine always passes through the hollow portion.

(Operation) In the packaging container, the tubular body 10, the inner flaps 12, 14 and the outer flaps 11, 13 are formed separately, and the tubular body 10 and the inner flaps 12, 14 are formed separately.
And the outer flaps 11 and 13 are connected by connecting bodies 111, 121, 131 and 141 having flexibility or flexibility.
When the outer flaps 1 and 13 are opened outward, the inner flaps 12 and 14 and the outer flaps 11 and 13 do not protrude laterally but hang down due to gravity, and are accommodated in parallel (parallel) with the tubular main body 10.

As described above, since the flaps do not protrude in the lateral direction and hang down by gravity, the operator can work close to the packaging container, and can easily store or take out the contents. This advantage is particularly remarkable when the contents to be stored or taken out are heavy. That is, holding a heavy object in the middle waist causes back pain, but the problem can be solved in the case of the packaging container according to the present invention.

Since the flaps hang down by gravity without protruding in the lateral direction, when a plurality of packaging containers are arranged with the lid open, the flaps do not become an obstacle and the distance between adjacent containers can be reduced. Effective use of work place. Also, using an automatic packaging device equipped with a conveyor,
It is easy to store the articles in the packaging container.

Further, in the case where the flap is formed to be bendable simply by forming a fold on the plastic cardboard, a crack is generated in the fold by opening and closing the flap many times, and there is a high possibility that the flap is torn and removed. . However, in the present embodiment, the sheet-like connected bodies 111, 121,
Since they are connected by 131 and 141, cracks do not easily enter and endure long-term use.

Since the tubular body 10 and the flap are connected by a sheet-like connecting body, unlike the case where a hinge is used as the connecting body, the load at the time of opening and closing the flap is hardly concentrated partially, and The connection structure between 10 and the flap is not easily broken.

Furthermore, if substantially the entire periphery of the cylindrical main body 10 and the flap is connected or connected by a sheet-like connecting body,
Unlike the case of connecting using a hinge, the cylindrical main body 1
It is difficult to form a gap between 0 and the flap. Therefore, even when the stored object is a small component or a powdery material, there is almost no possibility that the stored object is dropped off, and even when the stored object is transported in a cool state, the inconvenience such as leakage of cold air hardly occurs.

Further, for example, when an adhesive or an adhesive is used for connecting or connecting the cylindrical main body 10 to the sheet-like connected body and the flap to the sheet-like connected body, the adhesive or the adhesive is used for the cylindrical main body 10. , Flaps and sheet-like connectors, but such considerations are not necessary in the case of sewing. Further, in the case of sewing, there is no possibility of peeling due to aging or temperature change unlike the case of an adhesive or an adhesive.

[Embodiment 2] FIGS. 3 and 4 show a second embodiment of a packaging container according to the present invention. FIG.
Is a perspective view of a state in which the tubular main body is assembled in a square shape, but the bottom flap is not assembled, and the lid plate is opened outward. FIG. 4 is an assembled perspective view of the tubular main body and the bottom flap. It is a perspective explanatory view of the state which covered the flap. The same or equivalent parts as those in the first embodiment are denoted by the same reference numerals. In FIG. 3, for the sake of explanation, the flaps 12a and 14a are shown opened in the horizontal direction.

The difference from the packaging container shown in FIG. 1 is that the flaps constituting the end closing element on the lid side A are three-way open, one of which is a fitting lid. The end closure element on the lid side A comprises the facing inner flap 1
2a and 14a, and an outer flap 4 serving as a lid plate that covers the entire inner flaps 12a and 14a from above the inner flaps 12a and 14a after the inner flaps 12a and 14a are bent inward. Since the structure of the inner flaps 12a and 14a is the same as or substantially the same as the above case, the description is omitted.

The outer flap 4 includes an outer flap main body 40,
The outer flap body 40 has three side flaps 41, 42, 43 connected to a peripheral edge of the outer flap main body 40 via a flexible or flexible sheet-like connecting body 6. Side flap 4
One of the hook-and-loop fasteners 44 is attached to each of the outer surfaces 1, 42, and 43, respectively. The other surface fastener 45 is attached to a corresponding position on the outer surface of the tubular main body 10.

(Operation) After the inner flaps 12a and 14a are bent inward, the outer flaps 4 are fitted from above the inner flaps 12a and 14a, and one of the surface fasteners 44 and the other of the surface fasteners 45 are hooked. Thereby, the outer flap 4 is fixed to the tubular main body 10.

Since the packaging container of this example uses the hook-and-loop fastener for fixing the outer flap, it is more convenient for repeated use than for sealing with an adhesive tape or the like. Therefore, it is suitable for use as a so-called "return box" which is repeatedly used for transporting parts in a factory, for example. Other operations are almost the same as those of the first embodiment.

[Embodiment 3] FIGS. 5 and 6 show a third embodiment of a packaging container according to the present invention. FIG.
Is a perspective explanatory view of a state in which the cylindrical main body is assembled in a square shape, the bottom side flap is not assembled, and the lid side flap is opened outward, and FIG. 6 is a schematic explanatory view showing a connecting structure of the side wall of the cylindrical main body. is there. The same or equivalent parts as those of the embodiment described above are denoted by the same reference numerals. This is the same for other embodiments described later. In FIG. 5, for the sake of explanation, the flap 14a is shown opened in the horizontal direction.

The difference between the packaging container shown in FIGS. 5 and 6 and the packaging container shown in FIG. 3 is mainly on the side wall portion. As shown in FIG. 6, the four side walls 101, 102, 103, and 104 constituting the cylindrical main body 10 have a double structure of plastic cardboard. As described above, plastic cardboard has ribs in one direction. Plastic ribs are stacked so that the ribs intersect at right angles to form a side wall.

To connect the side walls 101, 102, 103 and 104, the sheet-like connected body 5 is arranged so as to extend over both sides of the adjacent side wall, and the sheet-like connected body 5 is connected to the side walls 101 and 10.
Sewing together with 2, 103, 104. After the connection by the sheet-like connecting member 5, the assembling has a required interval that does not hinder the bending of the adjacent side wall by 90 degrees in assembling, and the center of the sheet-like connecting member 5 is sewn. And the two sheet-like connected bodies 5 move integrally.

Further, similarly to the lid side A of the packaging container shown in FIG. 1, the flaps 21, 22, 23, 24 on the bottom side B and the cylindrical main body 10 are formed separately, and are respectively connected in sheet form. It is sewn on the body 5 and connected or interconnected.

(Operation) The operation is almost the same as that of the example shown in FIG. In the case of this exemplary packaging container, since the side walls have a double structure, even when the packaging containers are stacked, the compressive strength from above is excellent. In addition, when a sharp part such as a cutting tool is stored in a storage part or the like, a part of the part may be exposed by piercing the side wall if it has a single-layer structure, which is dangerous. be able to.

Further, the side walls 101, 102, 103, 10
Since the connection of the four members 4 is performed by sewing with the sheet-like connecting member 5, there is no danger that the metal portion will come inside and damage the contents as in the case where the stapler stops.

Further, it is possible to increase the number of plastic cardboards forming the side wall according to the contents. Furthermore, when using an adhesive or an adhesive for lamination, the adhesive or the adhesive must be compatible with the plastic cardboard, but in the case of sewing, such consideration is not necessary. . Further, in the case of sewing, there is no possibility of peeling due to aging, unlike an adhesive or an adhesive. Furthermore, in order to provide heat insulation and sound insulation, various functions can be provided, such as a structure in which felt or another material is sandwiched between plastic cardboards.

Fourth Embodiment FIGS. 7 to 12 show a fourth embodiment of the packaging container according to the present invention. 7 is a perspective explanatory view showing a state in which the bottom flap is closed inward and the lid flap is opened outward, FIG. 8 is a perspective explanatory view showing a state in which the lid inner flap shown in FIG. 7 is closed inward, FIG. 9 is a perspective explanatory view showing a state in which the outer flap on the lid side shown in FIG. 8 is closed inward. FIG. 10 is an inverted top view of the packaging container shown in FIG. FIG. 11 is a cross-sectional view showing a connection structure between a tubular main body and a flap by a sheet-like connection body, and FIG. 12 shows a state in which each flap is opened outward and a packaging container is folded. It is a perspective explanatory view. 7 and 8 and FIG.
0 indicates that each flap is opened diagonally downward for the sake of explanation. This is the same in the following figures.

The main differences from the packaging container shown in FIG. 1 are the connection structure between the cylindrical body 10 and each flap by the sheet-like connecting body 7, the use of the hook-and-loop fastener for fixing each flap, and the bottom. The point is that the flap on the side B and the cylindrical main body 10 are formed separately.

The tubular body 10 and each flap are connected via a flexible or flexible sheet-like connecting member 7. FIG. 11 shows a state in which the outer flap 11b is closed inward. Unlike the first embodiment (see FIG. 2C), the sheet-like connected body 7 is sewn to the outer surface of the side wall 101 and the outer surface of the outer flap 11b, respectively.

As shown in FIG. 7, the outer flap 1 on the lid side A
One of the hook-and-loop fasteners 113 and 133 is sewn to each of 1b and 13b along the tip of the inner surface. The other of the hook-and-loop fasteners 123 and 143 is, as shown in FIG.
The inner flaps 12b and 14b are sewn at corresponding positions on the outer surface. The width of one of the hook-and-loop fasteners 113 and 133 is about half the width of the other hook-and-loop fasteners 123 and 143, and the length of one of the hook-and-loop fasteners 113 and 133 is about the same as the length of the other hook-and-loop fasteners 123 and 143. It is twice.

The above-mentioned surface fasteners 113, 133, 1
The inner flaps 12b and 14b and the outer flaps 11b and 13b, which are inwardly closed, are fixed by the hooks 23 and 143. Further, as shown in FIG.
Has two fasteners 134, 13 at two locations on the outer surface.
4 is sewn. The other of the hook-and-loop fasteners 114 and 11
Numeral 4 is sewn at two positions at corresponding positions on the outer surface of the outer flap 11b. By the hooks of the surface fasteners 134 and 114, the closed outer flaps 11b and 13b can be firmly fixed.

As shown in FIG. 10, the inner flaps 22a, 24a and the outer flaps 21a, 23a on the bottom side B are formed separately from the tubular main body 10. Each flap 22a,
24a, 21a, 23a and the tubular main body 10 are sewn and connected or connected to each other by sheet-like connecting members 7,.

One of the hook-and-loop fasteners 221 is sewn to the inner flap 22a at the tip of the inner surface. The other side 241 of the hook-and-loop fastener is sewn to a corresponding position (along the tip side) of the inner surface of the inner flap 24a. As a result, the inner flaps 22a and 24a that are closed inward are firmly fixed to each other, thereby preventing bottoming when a heavy article is stored.

The flaps 22a, 24 on the bottom side B
Similarly to the flaps on the lid side A, one of the hook-and-loop fasteners 223 and 242 and the other of the hook-and-loop fasteners 211 and 231 are sewn to a, 21a and 23a, respectively.

(Operation) The inner flap 12b shown in FIG.
After the outer flaps 11b, 13
b is closed inward and one of the hook-and-loop fasteners 113 and 133 and the other of the hook-and-loop fasteners 123 and 143 are engaged. Furthermore,
One of the hook-and-loop fasteners 134 sewn to the outer flap 13b is hooked to the other hook-and-loop fasteners 114 and 114 sewn to the outer flap 11b to fix the outer flaps 11b and 13b to each other.

In this exemplary packaging container, as in the third embodiment (see FIG. 3), a hook-and-loop fastener is used for fixing each flap, so that the case is compared with a case where sealing is performed with an adhesive tape or the like. This is convenient for repeated use. Therefore, it is suitable for use as a so-called "return box" which is repeatedly used for transporting parts in a factory, for example. After the articles are conveyed, they can be folded back and sent back as shown in FIG. Other operations are almost the same as those of the embodiment described above.

[Fifth Embodiment] FIGS. 13 and 14 show a fifth embodiment of the packaging container according to the present invention. FIG. 13 is an explanatory perspective view showing a state in which the outer flap on the lid side is opened outward and a flap on the bottom side is closed inward, and FIG. 14 is an explanatory plan view showing a state in which the packaging container is expanded.

The main difference from the packaging container shown in FIG. 7 is that a hook-and-loop fastener structure for fixing each flap constituting an end closing element on the lid side A, and a side wall 10 of the cylindrical main body 10 are provided.
1 and 102 are connected by hook-and-loop fasteners 92 and 91 which are connection portions.

One of the hook-and-loop fasteners 124 and 144 is sewn to the center of the front side of the inner flaps 12b and 14b on the lid side A, and the other hook-and-loop fasteners 115 and 115 are sewn.
The 135 and 135 are provided at two places at a predetermined interval on the front side of the outer flaps 11b and 13b.

One of the surface fasteners 124, the other of the surface fasteners 115 and 135, and one of the surface fasteners 144
And the other of the hook-and-loop fasteners 115 and 135, respectively, so that the inner flap 12 is closed inward.
b, 14b and the outer flaps 11b, 13b are fixed.
In addition, each flap 21a, 22a, 23a, 2
Similarly, the hook-and-loop fasteners 115, 115, 13
5,135 are sewn.

Further, on the outer surface on the right end side of the side wall 102 in FIG. 14, one of surface fasteners 91 is sewn along the edge (projecting from the edge). The other side of the hook-and-loop fastener 92
Is sewn to the outer surface on the left end side of the side wall 101 in FIG. With such a configuration, the side wall 101, 102, 103, 104 is assembled by hooking one side 91 of the hook-and-loop fastener and the other 92 of the hook-and-loop fastener from the developed state of FIG. Can be configured.

(Operation) The side walls 101, 10 shown in FIG.
By releasing the fixing of the hook-and-loop fasteners 91 and 92 sewn to the container 2, the packaging container can be developed as shown in FIG.

[0086] For example, when the contents have a considerable weight, the packaging containers are spread on the floor in an unfolded state.
The container is placed on the side wall 103 with. Then, the side wall 10
The contents are accommodated in such a way as to be wrapped from both sides by the side walls 104, and finally, one of the hook-and-loop fasteners 91 is hooked to the other hook-and-loop fastener 92. After that, the flaps on the lid side A and the bottom side B are bent inward and fixed with the hook-and-loop fasteners. When stored in this way, there is no need to lift heavy articles, so that work efficiency and labor can be reduced.

Other functions are almost the same as those of the embodiment already described. Instead of the hook-and-loop fastener, other hooking means such as a slide fastener (sliding fastener) may be used.

[Embodiment 6] FIGS. 15 to 17 are similar to FIGS.
14 shows a sixth embodiment of the packaging container according to the present invention. 15 is a perspective explanatory view showing a state in which the lid side and the bottom side flap are opened outward, FIG. 16 is a perspective explanatory view showing a state in which the lid side and the bottom side flap are closed inward, and FIG. 17 is a folding container. It is a perspective explanatory view of a state of a slump.

The main difference from the packaging container shown in FIG. 7 is the structure of the hook-and-loop fastener for fixing each flap constituting the end closing element on the lid side A and the bottom side B.

In FIG. 15, the base of one side 93 of the hook-and-loop fastener is sewn to the side wall 104 at the center of the upper side of the outer surface, and the front side is extended to the lid side A. The other hook and loop fasteners 94 and 94 are sewn along the front sides of the outer surfaces of the outer flaps 11b and 13b, respectively, and in FIG. Is being worn.

With the above configuration, the inner flap 12
After closing the outer flaps 11b and 13b by closing the outer flaps 11b and 13b to the sides, as shown in FIG. 16, one of the hook-and-loop fasteners 93 is engaged with the other hook-and-loop fasteners 94, 94 and 95, respectively. It is fixed to the tubular main body 10.

Similarly to the lid side A, one side 93 of the hook-and-loop fastener and the other sides 94 and 9 of the hook-and-loop fastener are also provided on the bottom side B of the packaging container.
4, 95 are sewn, and the flaps on the bottom side B can be similarly fixed.

Further, at a required position on the outer surfaces of the side walls 101 and 103 shown in FIG. 15, when the packaging container is folded as shown in FIG. 17, one of the hook-and-loop fasteners 93 for hooking the hook-and-loop fastener 93 is provided. 96 and 96 are sewn respectively.

(Operation) In the packaging container according to the present embodiment, the hook-and-loop fastener is used for fixing the flaps on the lid side A and the bottom side B. There is no need to seal using tape or the like.

The other side fasteners 96, 96 are sewn to the outer surfaces of the side surfaces 101, 103 shown in FIG. 15, respectively. Therefore, when the packaging container is folded as shown in FIG. If one of the fasteners 93 is hooked, the packaging container can be fixed so as not to open. Furthermore, the treatment of the hook-and-loop fasteners 93 after folding the packaging container can be performed at the same time, which is very convenient. Other operations are almost the same as those of the embodiment described above.

[Seventh Embodiment] FIGS. 18 to 21 are similar to FIGS.
17 shows a seventh embodiment of the packaging container according to the present invention. 18 is a perspective explanatory view of the packaging container, FIG. 19 is a perspective explanatory view of a state where a part of the side wall is opened outward, FIG. 20 is an explanatory view of the opened packaging container viewed from the outer surface side of the bottom plate, FIG. 21 is an explanatory perspective view showing a state where the packaging container is folded.

The main difference from the packaging container shown in FIG. 1 is that there is no flap serving as a lid plate constituting an end closing element at the upper part, and the side walls are formed separately and a part of the side walls is formed on the outside. In that the end closure element on the bottom side B is formed by a single bottom plate 25 instead of a flap.

The packaging container has four side walls 105, 10
6, 107, 108 and one bottom plate 25. The side walls 105, 106, 107, 108 and the bottom plate 25 are formed separately, and are connected or connected by flexible or flexible sheet-like connecting members 7,.

In FIG. 19, one of the hook-and-loop fasteners 81, 81 is sewn to the side walls 107, 108 (hereinafter, referred to as "inner walls") provided on the short side of the bottom plate 25 at substantially the center on the outer side. ing.

A side wall 105 (hereinafter referred to as an “outer wall”) provided on the long side of the bottom plate 25 has an outer wall main body 105 a having the same or substantially the same width as the long side of the bottom plate 25, and an outer wall main body. Covering walls 10 provided on both ends of 105a
5b and 105b. The outer wall 106 provided on the long side of the bottom plate 25 also includes an outer wall main body 106a and covering walls 106b, 106b.

The outer wall main body 105a and the covering walls 105b, 1
05b is connected or connected by sheet-like connecting members 7, 7 on the outer surface side, respectively. The same applies to the outer wall main body 106a and the covering walls 106b, 106b. In addition, each covering wall 105b, 105b, 106b, 106b
The other of the surface fasteners 82, 82, 82, 82 corresponding to the one of the surface fasteners 81, 81 of the above-mentioned inner walls 107, 108 are sewn to the leading end side of the inner surface, respectively.

(Operation) The packaging container in the opened state shown in FIG. 20 is turned over, and then the inner wall 1 is turned over as shown in FIG.
07, 108 and the outer wall 106, the outer wall 1
The cover walls 106b, 106b of No. 06 are bent at substantially right angles, and the inner side walls 107, 108 are fixed from the outside, respectively. Inner side walls 107, 108 and covering walls 106b, 106b
Is fixed by hooking one of the surface fasteners 81, 81 and the other of the surface fasteners 82, 82. Further, by assembling the remaining outer wall 105 in the same manner, the packaging container shown in FIG. 18 is configured.

In the packaging container of the present embodiment, for example, by releasing the fixing of the hook-and-loop fasteners 81, 82, 81, 82, for example, as shown in FIG. It can be flush or essentially flush with 25. Therefore, since it is not necessary to lift the stored material up to the side wall and take it in and out, it is easy to store or take out the heavy material in particular. Therefore, work efficiency can be improved and labor can be reduced.

Further, from the state shown in FIG. 18, for example, if the right covering walls 105b and 106b are opened to the left and right outward (in the direction of the arrow), and the inner wall 107 is further opened outward, the container from the short side of the packaging container is accommodated. Objects can be stored or taken out.

Further, after the articles are conveyed as a so-called "return box", they can be folded back and sent back as shown in FIG.

In FIG. 18, a flap serving as a lid plate may be provided on the upper surface side of the packaging container to form an end closing element. Other operations are almost the same as those of the embodiment described above.

The terms and expressions used in the present specification are merely illustrative and not restrictive, and do not exclude the terms and expressions equivalent to the above-mentioned terms and expressions. Further, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the technical idea.

[0108]

(A) In the packaging container according to the present invention, the cylindrical main body and the wall are formed separately, and the cylindrical main body and the wall are connected in a sheet shape having flexibility or flexibility. Since the connection or connection between the tubular main body and the sheet-shaped connection body and the connection between the wall and the sheet-shaped connection body is performed by sewing, the wall portion corresponding to the lid plate is outwardly connected. Even if it is opened, the wall does not protrude in the lateral direction and hangs down by gravity, and fits in parallel (parallel) with the cylindrical main body. In this manner, the wall portion hangs down by gravity without protruding in the lateral direction, so that the worker can approach the packaging container and work. Therefore, it is easy to store or take out the stored items. This advantage is particularly remarkable when the contents to be stored or taken out are heavy. That is, holding a heavy object in the middle waist causes back pain, but the problem can be solved in the case of the packaging container according to the present invention.

(B) Since the walls hang down by gravity without protruding in the horizontal direction, when a plurality of containers are arranged with their lids open, the walls do not become a hindrance and the distance between adjacent containers is reduced. Work space can be used effectively. This facilitates the storage of articles using the automatic packaging device provided with the conveyor.

(C) Since the cylindrical main body and the wall are connected by the sheet-shaped connecting member, unlike the case where a hinge is used as the connecting member, the load when opening and closing the wall is hardly concentrated locally, The connection structure between the main body and the wall is hardly damaged.

(D) When substantially the entire periphery of the cylindrical main body and the wall is connected or connected with a sheet-like connecting body, unlike the case where the cylindrical main body and the wall are connected using a hinge, the cylindrical main body and the wall are not connected. It is difficult to form a gap between them. Therefore, even when the stored object is a small component or a powdery material, there is almost no possibility that the stored object is dropped off, and even when the stored object is transported in a cool state, the inconvenience such as leakage of cold air hardly occurs.

(E) Further, for example, when an adhesive or an adhesive is used for connecting or connecting the cylindrical main body to the sheet-like connected body and the wall portion to the sheet-like connected body, the adhesive or the adhesive is It must be compatible with the shape-like body, the wall and the sheet-like connection body, but such a consideration is not necessary in the case of sewing. Further, in the case of sewing, there is no possibility of peeling due to aging or temperature change unlike the case of an adhesive or an adhesive.

(F) In the case where the wall portion which is bent inward to form the end closing element can be fixed with a hook-and-loop fastener, an adhesive tape is required for fixing the wall portion corresponding to the lid plate. Not suitable for repeated use.

(G) The wall, which is bent inward to form the end closing element, is configured to be fixed with a hook-and-loop fastener, so that the packing container can be fixed in a folded state with the hook-and-loop fastener. With the configuration, the folded packaging container can be fixed without using other fixing means such as a string, which is convenient.

(H) At least one place in the cylindrical main body,
When the tubular main body is formed when connected, and a connecting portion is provided so that the tubular main body can be deployed when the connection is released, the storage or removal of the stored object is performed with the tubular main body deployed. If so, there is no need to lift the stored item during storage or removal. Therefore,
Even when the object is heavy, it is easy to store or take out the object.

(I) A packaging container having four side walls formed so as to rise from each peripheral edge of a rectangular wall part forming an end closing element on the bottom side, wherein the wall part and the side wall are separate. The wall portion and the side wall are connected or connected by a flexible or flexible sheet-like connecting member, and the wall portion and the sheet-like connecting member and the side wall and the sheet-like connecting member are connected or connected. Is performed by sewing, and at least one of the four side walls is fixed to another adjacent side wall by a hook-and-loop fastener,
When the fixing by the hook-and-loop fastener is released and the side wall is opened outward, the side wall is flush with or essentially flush with the wall corresponding to the bottom, and an opening is formed. In this way, the side wall is flush or essentially flush with the wall corresponding to the bottom body, so that the stored article can be easily stored or taken out without lifting the stored article above the side wall. This advantage is
This is particularly noticeable when the contents to be stored or taken out are heavy.

(J) The material of the packaging container is a plate-like object formed by connecting plastic plates having a face-to-face relationship with a space therebetween by a plastic link. In the case of a packaging container in which two or more of the above plate-like objects are stacked, even if the packaging container is stacked during transportation or storage, the side wall constituting the cylindrical main body is a lower side constituting the cylindrical main body. Since the side walls have sufficient strength, deformation can be prevented.

(K) When the side walls are stacked, not only can the contents be more sufficiently protected against an external impact, but, on the contrary, when the contents are like the blades of various machine tools. Does not affect the outside of the housed object, thereby preventing injury.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a packaging container according to the present invention, in which a tubular main body and a bottom flap are assembled, and a lid flap is opened outward.

FIG. 2 is a cross-sectional view illustrating the movement of a flap connected to a tubular main body by a sheet-shaped connecting body.

FIG. 3 is a perspective explanatory view showing a second embodiment of the packaging container according to the present invention, in a state where the cylindrical body and the bottom flap are not assembled and the lid flap is opened outward.

FIG. 4 is an explanatory perspective view showing a state in which a cylindrical main body and a bottom flap are assembled, and a flap on a lid side is covered;

FIG. 5 shows a third embodiment of the packaging container according to the present invention, in which the tubular main body is assembled in a square shape, the bottom flap is not assembled, and the lid flap is opened outward. FIG.

FIG. 6 is a schematic explanatory view showing a connection structure of a side wall of a cylindrical main body.

FIG. 7 is a perspective explanatory view showing a fourth embodiment of the packaging container according to the present invention, in which a bottom flap is closed inside and a lid flap is opened outside.

FIG. 8 is a perspective explanatory view showing a state where the inner flap on the lid side shown in FIG. 7 is closed inward.

FIG. 9 is a perspective explanatory view showing a state where the outer flap on the lid side shown in FIG. 8 is closed inward.

FIG. 10 is a perspective explanatory view showing a state where the packaging container shown in FIG. 9 is turned upside down and one of the bottom inner flaps and the outer flap are opened outward.

FIG. 11 is a cross-sectional view showing a connection structure between a tubular main body and a flap by a sheet-shaped connection body.

FIG. 12 is an explanatory perspective view showing a state where each flap is opened outward and the packaging container is folded.

FIG. 13 is a perspective view showing a fifth embodiment of the packaging container according to the present invention, in which a lid-side outer flap is opened outward and a bottom-side flap is closed inside.

FIG. 14 is an explanatory plan view of a state where the packaging container is expanded.

FIG. 15 is a perspective explanatory view showing a sixth embodiment of the packaging container according to the present invention, in a state where lids and bottom flaps are opened outward.

FIG. 16 is an explanatory perspective view showing a state where lids and bottom flaps are closed inward.

FIG. 17 is an explanatory perspective view of a state where the packaging container is folded.

FIG. 18 is a perspective explanatory view of a packaging container according to a seventh embodiment of the present invention.

FIG. 19 is an explanatory perspective view showing a state where a part of a side wall is opened outward;

FIG. 20 is an explanatory view of the opened packaging container as viewed from the outer surface side of the bottom plate.

FIG. 21 is an explanatory perspective view showing a state where the packaging container is folded.

[Explanation of symbols]

 101, 102, 103, 104 Side wall 10 Cylindrical main body 12, 14 Inner flap 11, 13 Outer flap 21, 22, 23, 24 Flap 111, 121, 131, 141 Sheet connector 112, 122, 132, 142 Decorative sheet REFERENCE SIGNS LIST 3 sewing thread 12a, 14a inner flap 4 outer flap 40 outer flap main body 6 sheet-like connected body 41, 42, 43 side flap 44 one of surface fastener 45 the other of surface fastener 5 sheet-like connected body 7 sheet-like connected body 11b, 13b Outer flaps 113, 133 One of the surface fasteners 123, 143 The other of the surface fasteners 12b, 14b The inner flap 134 One of the surface fasteners 114 The other of the surface fasteners 21a, 23a Outer flaps 22a, 24a The inner flap 221 One of the surface fasteners 241 One of the fasteners 223, 242 One of the hook-and-loop fasteners 211, The other of the hook-and-loop fasteners 91 One of the hook-and-loop fasteners 92 The other of the hook-and-loop fasteners 124 One of the hook-and-loop fasteners 144 One of the hook-and-loop fasteners 115 and 135 The other of the hook-and-loop fasteners 93 One of the hook-and-loop fasteners 94 The other of the hook-and-loop fasteners 95 The other of the hook-and-loop fasteners 96 The other of the hook-and-loop fasteners 25 The bottom plate 81 One of the hook-and-loop fasteners 82 The other of the hook-and-loop fasteners 105 The outer wall 105a The outer wall main body 105b The covering wall 106 The outer wall 106a The outer wall main body 106b The covering wall 107, 108 Inside wall

Claims (9)

[Claims] 1. A packaging container having an end closing element formed by inwardly bending at least one wall portion extending continuously from a peripheral edge of at least one end of a cylindrical main body, the packaging container comprising: The wall portion is formed separately, and the tubular main body and the wall portion are connected or connected by a flexible or flexible sheet-like connected body. A container for packaging, characterized in that the connection or connection between the part and the sheet-like connected body is performed by sewing. 2. A package having an end closing element formed by inwardly bending three or four walls respectively extending continuously from both ends of a cylindrical main body formed in a rectangular cylindrical shape. Container, wherein at least three or four wall portions located at least on the lid side of the cylindrical main body are formed separately from the cylindrical main body, and the cylindrical main body and the wall portion are flexible or flexible. Are connected or connected by a sheet-shaped connecting member having a property, and the connection or connection between the tubular main body and the sheet-shaped connecting member and between the wall portion and the sheet-shaped connecting member are performed by sewing. , Packaging containers. 3. The packaging container according to claim 1, wherein a wall portion which is bent inward to form an end closing element is configured to be fixed with a hook-and-loop fastener. 4. A wall which is bent inward to form an end closing element is configured to be fixed with a hook-and-loop fastener, and is configured such that the packing container can be fixed in a folded state by the hook-and-loop fastener. The packaging container according to claim 1, wherein the packaging container is provided. 5. At least one portion of the tubular main body is provided with a connecting portion that forms the tubular main body when connected and allows the tubular main body to be deployed when the connection is released. The packaging container according to claim 1, 2, 3, or 4. 6. A packaging container having four side walls rising from respective peripheral edges of a rectangular wall forming an end closing element on a bottom side, wherein the wall and the side wall are separate bodies. The wall portion and the side wall are connected or connected by a flexible or flexible sheet-like connecting member, and the connection or connection between the wall portion and the sheet-like connecting member and the side wall and the sheet-like connecting member is A container for packaging, wherein at least one of the four side walls is fixed to another adjacent side wall by a hook-and-loop fastener. 7. The packaging container according to claim 1, wherein the material of the sheet-like linked body having flexibility or flexibility is cloth. 8. A plate-like material formed by connecting a plastic container in which a material of a packaging container is cardboard, a plastic plate having a face-to-face relationship at a distance, and a plastic connector. The packaging container according to any one of claims 1, 2, 3, 4, 5, 6, and 7, wherein the packaging container is any one or a combination of two or more selected from plates. 9. The material of the packaging container is a plate-like object formed by connecting plastic plates having a face-to-face relationship with a space therebetween by a plastic connecting body. Four side walls formed from each peripheral edge of each side wall constituting the shape-shaped main body, or a rectangular wall portion forming an end closing element on the bottom side, two or more of the above plate-like materials are laminated. 9. The device according to claim 1, wherein the side walls are connected or connected by a flexible or flexible sheet-like connecting body. Packaging container.