JP2000103456A - Packaging container and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container for which whether the container is opened or not opened can be discerned quickly, fear for being opened during transportation is not existent and an excessive cost is not required. SOLUTION: A packaging container 1 is composed of an outer cylinder 2 which is dividable into a cap body part 3 and a main body part 4, an upper and a lower external end walls 16 and 17, an inner cylinder 20 and an upper and a lower internal end walls 21 and 23. The cap body part 3 and the main body part 4 are separably connected together with a relatively weak connecting part 6 and a relatively strong connecting part 7, and a lip part 11 is formed, being incised at the cap body part 3. With the lip part 11 torn away with fingers from the cap body part 3, the strong connecting part 7 is severed by this tearing-away force and with the cap body part 3 and the main body part 4 twisted in the opposite directions thereafter, the weak connecting part 6 is easily severed by the twisting force and both of the parts 3 and 4 are separated, making the packaging container 1 opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to chocolate sweets, candy sweets, snack sweets, laver, dried bonito packs, green tea,
The present invention relates to a paper packaging container for packaging foods and beverages such as tea packs, coffee, tempura flour, and miso, fiber products such as towels and underwear, and various other products.

[0002]

2. Description of the Related Art A conventional packaging container 50 shown in FIG.
For example, it is for packaging food and drink (not shown) such as individually wrapped chocolate confectionery and the like, and includes a paper outer cylinder 51 and an outer end wall 52 for closing upper and lower open ends of the outer cylinder 51. The cylinder 51 is separated into a lid 53 and a main body 54 at an intermediate height position. An inner cylinder 55 is provided inside the outer cylinder 51, and the lid 53 is detachably mounted on the upper end of the inner cylinder 55. The open end of the inner cylinder 55 may be sealed by a sheet-like inner end wall (not shown).

[0003]

However, this packaging container 50 has a problem that it is not possible to determine whether it is unopened or already opened. That is, since the lid 53 and the main body 54 have already been separated from the manufacturing stage, the lid 53 and the main body 54 cannot be discriminated even if they have been opened, and there is a problem of safety and hygiene.
To cope with such a problem, the entire packaging container 50 can be wrapped with a transparent sheet, or an opening seal can be attached so as to extend over the lid 53 and the main body 54.
That requires extra effort and cost.

[0004] Therefore, a first object of the present invention is to solve the above-mentioned problems and to provide a packaging container which can discriminate between unopened and already-opened packages and does not require extra cost.

[0005] A second object of the present invention is to enable the above-described packaging container to be manufactured in a substantially completed stage and a product packaging stage, thereby enabling the packaging container manufacturer and the product hopper to communicate with each other. Another object of the present invention is to provide a manufacturing method capable of achieving division of labor.

[0006]

In order to achieve the above object, a packaging container according to the present invention comprises an outer cylinder formed by deforming a paper blank into a cylindrical shape, and both open ends of the outer cylinder are closed. In a packaging container comprising an outer end wall and an outer cylinder which can be separated into a lid and a main body at an intermediate height position, the lid and the main body can be easily cut by a torsion force by hand. A relatively weak connecting portion and a relatively strong connecting portion that is not easily cut by a torsion force by hand are separably connected,
A lip portion capable of easily cutting the strong connecting portion by a peeling force with a finger is formed in the lid or the main body by cutting.

[0007] It is preferable that an inner cylinder is provided inside the outer cylinder. In this case, the lid is detachably mounted on one end of the inner cylinder. Further, one or both open ends of the inner cylinder may be sealed by an inner end wall.

In the method for manufacturing a packaging container according to the present invention, an outer cylinder formed by deforming a paper blank into a cylindrical shape and an inner cylinder which can be provided in the outer cylinder are used. One open end is closed with one outer end wall, one open end of the inner cylinder is sealed with one inner end wall, and the inner cylinder is inserted from the other open end of the outer cylinder from the one inner end wall side. Of the outer cylinder is closed by the other inner end wall, and the other open end of the outer cylinder is closed by the other outer end wall.

Further, the packaging container of the present invention comprises an outer cylinder formed by deforming a paper blank into a cylindrical shape, and an outer end wall closing both open ends of the outer cylinder. In the packaging container which can be separated into a lid portion and a main body portion at a height position, the lid portion and the main body portion are separably connected by a connecting portion which can be easily cut by a twisting force by hand. It is characterized by:

[0010] It is preferable that an inner cylinder is provided inside the outer cylinder. In this case, the lid is detachably mounted on one end of the inner cylinder. Further, the inner cylinder may not be bonded to the outer cylinder, and the inner cylinder and the outer cylinder may be configured to be easily deployable.

The method for producing a packaging container according to the present invention comprises the steps of:
An outer cylinder formed by deforming a paper blank into a cylindrical shape, and a method for manufacturing a packaging container including an outer end wall for closing an open end of the outer cylinder, wherein the outer end wall has a cylindrical outer surface. A locking portion for locking the peripheral portion is formed inside the opening end, and a support portion for supporting the inner side surface of the outer end wall on the inner side of the cylinder is formed more deeply in the cylinder than the locking portion at the opening end. The outer end wall is deformed so that the outer end wall is sunk into the engaging portion, so that the outer end wall is attached between the engaging portion and the support portion.

The locking portion is not particularly limited, but may be a ridge or protrusion formed by winding or bending the open end of the outer cylinder inside the cylinder, or a resin or metal formed at the open end of the outer cylinder. Ridges or protrusions can be exemplified.

The support portion is not particularly limited, but may be a lower end portion of an inner cylinder provided in the outer cylinder or a lower end portion of an article to be stored in a packaging container. When the wall thickness of the inner cylinder is thin, it is preferable to provide a ridge or a protrusion similar to the locking portion at the end of the inner cylinder.

In the above description, as a method of deforming the “paper blank”, winding, bending or bending may be mentioned. Before the paper blank is deformed into a tubular shape, it is preferable that a "joining portion" and a "lip portion" are formed in advance. The “joining portion” can be formed, for example, by leaving uncut portions between perforations formed by cutting into a paper blank.

Examples of the shape of the "outer cylinder" include a cylinder, an elliptical cylinder, a square cylinder (a triangular cylinder, a square cylinder, a pentagonal cylinder, a hexagonal cylinder, etc.).

[0016]

Embodiments of the present invention will be described below with reference to the drawings. First, the packaging container 1 of the first embodiment shown in FIGS. 1 to 5 is for packaging food and drink (not shown) in the same manner as the conventional example, and includes a cylindrical paper outer cylinder 2, An upper outer end wall 16 and a lower outer end wall 17 for closing upper and lower open ends of the outer cylinder 2, an inner cylinder 20 provided in the outer cylinder 2, and an upper inner wall for sealing the upper and lower open ends of the inner cylinder 20. The outer cylinder 2 includes an end wall 21 and a lower inner end wall 23.
Can be separated into an upper lid 3 and a lower main body 4 at an upper height position.

The outer cylinder 2 is formed by bending a rectangular paper blank 5 as shown in FIG. 2 into a cylindrical shape. At the position corresponding to the boundary between the lid 3 and the main body 4 in the paper blank 5, two types of connecting portions 6 and 7 having different strengths are left uncut, and the perforation 8 extends linearly from the left end to the right end. Notches are formed.

The three connecting portions 6 at the center in FIG. 2 are relatively weak connecting portions left uncut, and the connecting portions 7 at the left and right ends in FIG. It is a strong joint. The relatively weak connecting portion 6 has such a strength that the cover 3 and the main body 4 are easily cut by a torsion force generated when the cover 3 and the main body 4 are twisted by hand in opposite directions. 4 is connected. The relatively strong connecting portion 7 connects the lid portion 3 and the main body portion 4 with a strength that is not easily cut by the torsion force.

At the left and right ends of the paper blank 5, perforations 9 above and parallel to the perforations 8 are provided.
The strong connecting portion 7 is cut short at the position corresponding to the strong connecting portion 7. The perforation 9 at the left end of the paper blank 5 communicates with the perforation 8 by a cut 10 hanging down from the right end.

Thus, at the right end of the paper blank 5,
A U-shaped lip portion 11 having an upper side composed of perforations 9, a lower side common to the perforations 8, and a right side protruding from the right end edge of the paper blank 5 is cut and formed at the left end. Is a square-shaped lip follower having an upper side composed of perforations 9, a lower side common to the perforations 8, a left side common to the left edge of the paper blank 5, and a right side composed of the cuts 10. The part 12 is cut and formed. Notches 13 are formed in the upper and lower corners of the left end of the paper blank 5 in FIG.

The paper blank 5 is curved toward the inner surface as shown in the front in FIG. 2, and the inner surface of the right end is superimposed on the outer surface of the left end so that the lip portion 11 overlaps the outer side of the lip following portion 12, and is adhered. By forming the double spliced portion 14, as shown in FIG. 3, it is processed into a cylindrical outer cylinder 2. In addition, at the upper and lower ends of the outer cylinder 2 provided with the cutouts 13, a single rewinding portion 15 is formed instead of the joining portion 14.

The inner cylinder 20 is formed by winding a paper blank (not shown) slightly thicker than the paper blank 5 into a cylindrical shape, and its outer diameter is substantially equal to the inner diameter of the outer cylinder 2. 2 can be inserted. Food and drink, such an inner cylinder 2
0.

Each of the upper outer end wall 16 and the lower outer end wall 17 is a circular plate made of paper, and has an outer diameter substantially equal to the inner diameter of the outer cylinder 2 so that it can be inserted into the outer cylinder 2. . The upper inner end wall 21 and the lower inner end wall 23 are both circular sheets made of aluminum, and the outer diameter is substantially equal to the outer diameter of the inner cylinder 20 so that the upper inner end wall 21 and the lower inner end wall 23 can be attached to the end surface of the inner cylinder 20. Has become. A lip 22 for projecting the upper inner end wall 21 from the inner cylinder 20 is provided.

To manufacture the packaging container 1 having the above structure,
As shown in FIG. 3, first, a lower inner end wall 23 is attached to the lower end surface of the inner cylinder 20 to seal the lower open end, and food and drink are stored therein from the upper open end. Upper inner end wall 2
1 and the upper open end is sealed. On the other hand, the upper rewinding portion 15 of the outer cylinder 2 is previously wound back inside the cylinder, and the upper surface of the upper outer end wall 16 inserted from the lower opening end of the outer cylinder 2 is attached thereto to close the upper opening end. .

Next, the sealed inner cylinder 20 is inserted from the lower opening end of the outer cylinder 2 to the upper inner end wall 21 until it hits the upper outer end wall 16. Stick it on the inner surface and fix it. Then, after the upper surface of the lower outer end wall 17 inserted from the lower open end of the outer cylinder 2 is attached to the lower inner end wall 23 to close the lower open end, the lower rewinding portion 15 of the outer cylinder 2 is placed inside the cylinder. The container 1 for packaging food and drink can be obtained.

As shown in FIG. 1, when the packaging container 1 is not opened, the lid 3 and the main body 4 are connected by a weak connecting portion 6 and a strong connecting portion 7, and the lid 3 is closed. The lip portion 11 is fixed to the upper end portion of the tube 20 and is integrated with the lid portion 3. Even if a natural torsion force generated during transportation or a torsion force by hand is applied to the packaging container 1 in this state, the strong connecting portion 7 is not easily cut, and the strong connecting portion 7 itself is connected to the weak connecting portion 6. Since it acts as a lock for preventing the propagation of torsional force, the weak link 6 is not cut.

Then, as shown in FIG.
With the finger from the lid 3 together with the lip follower 12,
After the strong connecting portion 7 is cut by the peeling force at this time and the lock is released, when the lid 3 and the main body 4 are manually twisted in opposite directions by hand, the weak connecting portion 6 is turned by the torsion force. The packaging container 1 is easily cut, the two parts 3 and 4 are separated, and the packaging container 1 is in an opened state. Since the lip portion 11 and the lip following portion 12 are peeled off from the lid 3 in the opened packaging container 1, it can be seen at a glance that the packaging container 1 has been opened.

In order to take out the food and drink in the inner cylinder 20, as shown in FIG. 5, the lid 3 is removed from the upper end of the inner cylinder 20, and the lip 22 is picked up with a finger to form the upper inner end wall 21.
May be peeled off from the inner cylinder 20. The lid 3 separated from the main body 4 can be detachably mounted on the upper end of the inner cylinder 20.

According to the packaging container 1 of this embodiment, the presence or absence of peeling of the lip portion 11 can be easily identified with the naked eye.
It is possible to quickly determine whether the package has been opened or not. In addition, since there is provided a strong connecting portion 7 that is not easily cut by the twisting force by hand, there is no fear that the container is opened during transportation.

Next, FIG. 6 shows a packaging container 1 of the second embodiment (the completed drawing is common to FIG. 1 of the first embodiment) which is different from the first embodiment only in the point that the manufacturing method is different. I have. In the present embodiment, the outer cylinder 2, the upper outer end wall 16 and the lower outer end wall 17, the inner cylinder 20, and the upper inner end wall 21 and the lower inner end wall 23 which are common to the first embodiment are used. FIG.
The same reference numerals as in the first embodiment denote the same, and a description thereof will not be repeated.

To manufacture the packaging container 1 of this embodiment,
First, the upper rewinding portion 15 of the outer cylinder 2 is previously wound back inside the cylinder, and the upper surface of the upper outer end wall 16 inserted from the lower opening end of the outer cylinder 2 is adhered thereto to close the upper opening end. . Next, an upper inner end wall 21 is adhered to the upper end surface of the inner cylinder 20 to seal the upper opening end, and the inner cylinder 2 is closed from the lower opening end of the outer cylinder 2.
0 is inserted from the upper inner end wall 21 side to the upper outer end wall 16, and its outer peripheral surface is attached and fixed to the inner peripheral surface of the main body 4 of the outer cylinder 2.

After the food or drink is stored inside the inner cylinder 20 from the lower opening end, the lower inner end wall 2 is attached to the lower end surface of the inner cylinder 20.
3 and the lower open end is sealed. Finally, after the upper surface of the lower outer end wall 17 inserted from the lower open end of the outer cylinder 2 is adhered to the lower inner end wall 23 to close the lower open end, the lower rewinding portion 15 of the outer cylinder 2 is closed. If it is wrapped inside, as shown in FIG. 1, a packaging container 1 in which food and drink are packaged can be obtained.

The same effects as in the first embodiment can be obtained also by the packaging container 1 manufactured by the manufacturing method of this embodiment. Furthermore, according to this manufacturing method, the lower inner end wall 2
The packaging container 1 is manufactured in a substantially completed state, leaving only the sealing operation of Step 3 and the closing operation of the lower outer end wall 17, and after storing food and drink from the lower opening end, the lower opening end is sealed and closed. Therefore, the manufacturing can be divided into a substantially completed stage and a food / beverage packaging stage, so that the division of labor between the packaging container manufacturer and the food / beverage container can be achieved.

7 to 12 show a packaging container 30 according to a third embodiment. This packaging container 30 differs from the first embodiment only in the following points. Therefore,
Portions common to the first embodiment are denoted by the same reference numerals as in the first embodiment, and description thereof is omitted.

As shown in FIG. 7, the lid 3 and the main body 4 are connected only by a weak connecting portion 6. Strong joint 7
In order to compensate for the relative shortage of strength due to the omission of, the number of weak connecting portions 6 is increased compared to the first embodiment. Specifically, in the first embodiment, five connecting portions 6 and 7 are provided, whereas in the packaging container 30, eight weak connecting portions 6 are provided. In addition, the number of the connection parts 6 and 7 is an example, and is not limited to this, and can be appropriately changed according to the property such as the weight of the thing put in the packaging container 30 and the transport method.
According to the packaging container 30 of the present embodiment, when not opened, the lid 3 and the main body 4 are connected by the weak connecting portion 6,
At the time of opening, since the weak connecting portion 6 is cut and separated, it is possible to determine whether it is unopened or already opened based on the presence or absence of the cutting.

The lip portion 11 in the first embodiment is not provided, and the lid portion 3 and the main body portion 4 are separated by cutting the weak connecting portion 6 by a hand twisting force. However, since the number of connecting portions 6 that are weaker than in the first embodiment is increased, it is necessary to apply a relatively stronger torsion force than the packaging container 1. Note that the degree of the torsional force is an example and is not limited to this, and can be appropriately set according to the age group, gender, and the like of the target user.

The outer cylinder 31 has a paper blank 32 shown in FIG.
Is wound in a cylindrical shape. Also, as shown in FIG.
(There is no perforation 8 unlike the outer cylinder). Paper blanks 32, 3 of outer cylinder 31 and inner cylinder 33
The joint portion 14 is bonded so that it cannot be developed by external force applied to the packaging container 30 at least during transportation or use, and can be torn by hand and deployed. In particular, since the inner cylinder 33 is inserted into the cylinder of the outer cylinder 31 and its shape is maintained, the joint portion 14 can be relatively weakly adhered to the outer cylinder 31. The means for bonding the joints 14 is not particularly limited, and examples thereof include bonding with an adhesive and bonding with an adhesive tape.

Both the outer cylinder 31 and the inner cylinder 33 use paper blanks 32 and 34 which are thinner than the outer cylinder 2 of the first embodiment. It is designed to be stored. The paper blank 32,
The thickness of the sheet 34 is merely an example, and is not limited thereto. The thickness of the sheet 34 can be appropriately changed according to the weight and properties of the items to be stored.

The inner cylinder 33 is not bonded to the outer cylinder 31,
If the lid 3 is removed as shown in FIG.
As shown in FIG. 2 (b), the inner cylinder 33 can be easily extracted from the outer cylinder 31 (the inner cylinder 33 can be easily pulled out by applying force by hand.
1 may be weakly adhered. ). Moreover, as described above, the outer cylinder 31 (the lid 3 and the main body 4) and the inner cylinder 33
As shown in FIG. 2 (c), each of the packaging containers 30 can be easily torn by hand, so that the packaging container 30 can be easily unfolded into a non-bulky flat plate shape, and can be easily disposed of as burning garbage.

The lower outer end wall 17 is provided with a circular fold 17a concentric with the outer periphery thereof (the circular fold 17).
a can be omitted. ). The upper inner end wall 21 and the lower inner end wall 23 in the first embodiment are not provided.

The method for manufacturing the packaging container 30 of the present embodiment includes the following steps.

The paper blank 34 for the inner cylinder is deformed into a cylindrical shape, and the joint portion 14 is bonded. In addition, inner cylinder 3
The upper and lower rewinding portions 15 of 3 are respectively rewinded inside the cylinder. The lower rewinding portion 15 is formed on the lower outer end wall 17.
The support portion 37 supports the inner side surface of the cylinder.

The outer cylinder 31 is formed in the same manner as described above.
At this time, the point that the lower winding portion 15 is not folded is mainly different from the above. Then, the upper outer end wall 16 is inserted from the lower opening end of the outer cylinder 31, and the upper surface of the upper outer end wall 16 is adhered to the rewinding portion 15 above the outer cylinder 31 to close the upper opening end. This step may be performed before the above, or may be performed in parallel with the above.

The inner cylinder 33 is inserted from the lower opening end of the outer cylinder 31. At this time, the inner cylinder 33 does not adhere to the outer cylinder 31.

The rewinding portion 15 below the outer cylinder 31 is rewinded inside the cylinder. The rewinding portion 15 is a locking portion 35 formed on the inner side of the lower opening end of the outer cylinder 31, and the locking portion 35 is a peripheral portion 17 b of the lower outer end wall 17 on the cylinder outer surface side.
Is to be locked. At this time, the support portion 37 is located on the back side of the cylinder with respect to the locking portion 35.

As shown in FIG. 10, food and drink are stored inside the inner cylinder 33 from the lower open ends of the outer cylinder 31 and the inner cylinder 33. This step can be performed next to the above or next to the above.

The peripheral portion 17b of the lower outer end wall 17 is slightly bent toward the outer surface along the circular fold 17a. In addition,
The circular fold 17a does not necessarily need to be bent. Even when the circular fold 17a is omitted,
It may be folded as it is formed.

As shown in FIG. 11, the lower outer end wall 17
Of the lower outer end wall 17 facing the inner side of
Is forcibly pushed into the outer cylinder 31. Then, the lower outer end wall 1
7 is deformed, for example, by bending to the outer surface side along the circular fold line 17a, so that the lower outer end wall 17 goes under the locking portion 35 of the outer cylinder 31. Thereafter, the deformation immediately returns to its original state, and the peripheral portion 17b of the lower outer end wall 17 is
5 and the supporting portion 37. In this manner, the lower opening end of the outer cylinder 31 is closed by the lower outer end wall 17, and the packaging container 30 in which food and drink are packaged can be obtained.

The same effects as those of the first and second embodiments can be obtained by the packaging container 30 of this embodiment.

Furthermore, according to the method of manufacturing the packaging container 30 of the present embodiment, the lower outer end wall 17 is attached after the engaging portion 35 is formed. Unlike the case where the locking portion 35 is formed by the lower outer end wall 17, the processing space is not limited. Therefore, since a sufficient processing space can be secured, workability is good.

Similarly, since the lower outer end wall 17 is attached after forming the locking portion 35, the lower outer end wall 17
Unlike the case of mounting, there is no gap left between the lower outer end wall 17 and the locking portion 35 at the time of rewinding. Therefore, the lower outer end wall 17 and the locking portion 3
5, there is almost no extra gap, and the lower outer end wall 1 is formed by the spring property of the peripheral portion 17b of the lower outer end wall 17.
Since 7 is supported on the inner peripheral surface of the outer cylinder 31, the lower outer end wall 17 does not rattle even if it is not bonded to the outer cylinder 31. Further, since the lower outer end wall 17 is not bonded to the outer cylinder 31, there is no possibility that the adhesive is exposed and the appearance is deteriorated at all.

Note that the present invention is not limited to the above-described embodiment, and can be embodied with appropriate modifications without departing from the spirit of the invention, for example, as follows. (1) In the first embodiment or the second embodiment, the lip portion 11 and the lip following portion 12 are provided on the main body 4 of the outer cylinder 2.

(2) The outer cylinder 2 is formed in a rectangular cylindrical shape. (3) In the second embodiment, manufacturing the packaging container 1 in a substantially completed state, leaving only the work of sealing and closing the upper open end, not the lower open end.

(4) In the third embodiment, the lower opening end is closed instead of the upper opening end in the manufacturing process, and the upper opening end is closed instead of the lower opening end in the manufacturing process.

(5) In the third embodiment, the inner cylinder 33 is omitted, and the lower end portion of the food / drink 36 is used as a support portion 41 as shown in FIG. Holding the outer end wall 17;

(6) In the third embodiment, instead of the inner cylinder 33, an inner cylinder formed by winding a slightly thick paper blank similar to the inner cylinder 20 of the first embodiment is used. The support at this time is the lower end of the inner cylinder.

[0057]

Since the packaging container according to the first to third and fifth to eighth aspects of the present invention is configured as described above, it is possible to determine whether the package is unopened or already opened, and no extra cost is required. It has an excellent effect.

In addition to the above effects, according to the method for manufacturing a packaging container according to the fourth aspect of the present invention, the packaging container can be manufactured in a substantially completed stage and a product packaging stage. Of a manufacturer and a product storage person.

[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 developed view of an inner surface of an outer cylinder of the packaging container.

FIG. 3 is an exploded perspective view showing a method for manufacturing the packaging container.

FIG. 4 is a partial perspective view showing a method of opening the packaging container.

FIG. 5 is a partial perspective view showing a method of opening the packaging container.

FIG. 6 is an exploded perspective view of a main part showing a method for manufacturing a packaging container according to a second embodiment.

FIG. 7 is a perspective view of a packaging container according to a third embodiment.

FIG. 8 is a developed view of the inner surface of the outer cylinder of the packaging container.

FIG. 9 is an exploded perspective view schematically showing a method of manufacturing the packaging container.

FIG. 10 is an exploded perspective view showing one step of a method for manufacturing the packaging container.

FIG. 11 is a partial cross-sectional view showing another step of the method for manufacturing the packaging container.

FIG. 12 is a perspective view showing a disassembling method of the packaging container.

FIG. 13 is a partial sectional view showing a modified example of the packaging container.

FIG. 14 is a perspective view showing a conventional packaging container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging container 2 Outer cylinder 3 Lid part 4 Main body part 5 Paper blank 6 Weak joint part 7 Strong joint part 11 Lip part 16 Upper outer end wall 17 Lower outer end wall 20 Inner cylinder 21 Upper inner end wall 23 Lower inner End wall 30 Packaging container 31 Outer cylinder 32 Paper blank 33 Inner cylinder 34 Paper blank 35 Engagement part 36 Food and drink 37 Support part 41 Support part

Claims (8)

[Claims] 1. An outer cylinder formed by deforming a paper blank into a cylindrical shape, and an outer end wall closing both open ends of the outer cylinder, wherein the outer cylinder is provided with a lid portion at an intermediate height position. In a packaging container separable from a main body, the lid and the main body are relatively easily cut by a hand torsion force, and a relatively weak connecting portion that can be easily cut by a hand torsion force. A lip portion that is separably connected to a relatively strong connecting portion that is not formed, and a lip portion that can easily cut the strong connecting portion by a peeling force by a finger is formed in the lid portion or the main body portion. Characteristic packaging container. 2. The packaging container according to claim 1, wherein an inner cylinder is provided inside the outer cylinder, and the lid is detachably mounted on one end of the inner cylinder. 3. The packaging container according to claim 2, wherein one or both open ends of the inner cylinder are sealed by an inner end wall. 4. An outer cylinder formed by deforming a paper blank into a cylindrical shape and an inner cylinder which can be provided in the outer cylinder, and one opening end of the outer cylinder is closed by one outer end wall. After sealing the one open end of the inner cylinder with one inner end wall, inserting the inner cylinder from the one inner end wall side through the other open end of the outer cylinder, and then connecting the other open end of the inner cylinder to the other inner end. A method for manufacturing a packaging container, wherein the package is sealed with an end wall, and the other open end of the outer cylinder is closed with the other outer end wall. 5. An outer cylinder formed by deforming a paper blank into a cylindrical shape, and an outer end wall for closing both open ends of the outer cylinder, wherein the outer cylinder has a lid portion at a midway height position. A packaging container that is separable from a main body, wherein the lid and the main body are separably connected by a connecting portion that can be easily cut by a torsion force by hand. . 6. The packaging container according to claim 5, wherein an inner cylinder is provided inside the outer cylinder, and the lid is detachably mounted on one end of the inner cylinder. 7. The packaging container according to claim 6, wherein the inner cylinder is not bonded to the outer cylinder, and the inner cylinder and the outer cylinder are configured to be easily deployable. 8. A method for manufacturing a packaging container comprising: an outer cylinder formed by deforming a paper blank into a cylindrical shape; and an outer end wall for closing an open end of the outer cylinder, wherein the outer end wall is provided. A locking portion for locking the peripheral portion of the outer surface of the cylinder is formed inside the opening end, and a supporting portion for supporting the inner side surface of the outer end wall is more cylindrical than the locking portion at the opening end. A packaging container formed on the back side, wherein the outer end wall is attached between the locking portion and the support portion by deforming the outer end wall and sunk inside the locking portion. Manufacturing method.