WO2016085161A1

WO2016085161A1 - Apparatus for bonding folded portion of self-standing packing vessel

Info

Publication number: WO2016085161A1
Application number: PCT/KR2015/012110
Authority: WO
Inventors: 송철종
Original assignee: 주식회사 드림
Priority date: 2014-11-28
Filing date: 2015-11-11
Publication date: 2016-06-02
Also published as: KR20160064947A; KR20160141389A; KR101712883B1

Abstract

The present invention relates to a packing vessel that can accommodate various types of powder, liquid food, retort food, or the like and, in particular, disclosed are an improved self-standing packing vessel and an apparatus for bonding a folded portion, which is suitable for the same. The apparatus for bonding a folded portion of a self-standing packing vessel comprises: a guide that maintains a gadget in a V-shaped folded state; a first bending tool that is located to make contact with the front side of the guide and the upper surface of the gadget in the transfer direction of the gadget and has an inclined surface that is formed thereon to be inclined at a predetermined angle; a second bending tool that has a second inclined surface that faces the inclined surface of the first bending tool in the transfer direction of the gadget and reciprocates in the direction transverse to the up/down direction and the transfer direction of the gadget; a first actuating unit that transfers the second bending tool in the up/down direction; a second actuating unit that reciprocates the second bending tool in the direction transverse to the transfer direction of the gadget; and a thermal bonding unit that thermally bonds the folded portion, which is folded outward, to upper and lower base materials by the up/down and reciprocating motion of the second bending tool.

Description

【Specification】

[Name of invention]

Fold-joining device of freestanding packaging container

Technical Field

The present invention relates to a packaging container that can contain various powders, liquid foods, retort products and the like, and more particularly, to an improved self-supporting packaging container and a fold joining device suitable therefor. '

Background Art

As a general work, a packaging container made of a film or a vinyl sheet is manufactured in a structure in which left and right edges and a bottom of a packaging container made of upper and lower fabrics are bonded, and a synthetic resin zipper is heat-bonded in a straight line on the upper end. ^'

Synthetic resin fabric is a double coated as a layer that is not easy to heat bonding on the surface and the resin layer is easy to heat bonding on the inner surface. Therefore, if the upper and lower sides are pressed with a heat bond (eg, a heater) in the state of overlapping the upper and lower fabrics, the inner surfaces of the upper and lower fabrics can be heat bonded to each other to manufacture a packaging container.

The freestanding packaging container is configured to provide a side seal portion of which the sides of the container are folded in a V-shape, and the bottom surface thereof is configured to provide a self-supporting function by widening the .down area by the contents.

1 shows an example of a conventional freestanding packaging container.

The upright plastic container 200 shown in FIG. 1 includes a contents storage unit 210, an opening and closing unit 220, and a folding unit 230.

Contents storage unit 210 is a portion where the contents are stored, and the front side 210a and the rear side 210b of the edge are overlapped in two layers at the upper end and the lower end not shown to form a space for storage.

The opening and closing portion 220 is a portion at which the contents are discharged, the front surface 210a and the rear surface 210a of the contents storage portion 210 and the rear surface 210b of the contents storage portion 210 and the rear surface 220b connected to one. The two sides and the upper end are overlapped in two layers and joined.

In addition, the opening and closing portion 220 is formed in both sides of the cutting groove 221 is first to be cut for the user to discharge the contents, the lower portion of the cutting groove 221 for helping the opening and closing of the contents storage unit 210 The vinyl zipper 222 is formed.

The vinyl zipper 222 is composed of a resin zipper 222a and an arm zipper 222b, the resin zipper 222a is bonded to the inside of the front surface 220a, and the arm zipper 222b is inside of the rear surface 220b. Being bonded to All.

Folded portion 230 is connected to the side of the front (210a) and the back (210b) of the contents storage unit 210, respectively, and folded to the inside of the contents storage unit 210, the upper portion is folded in a triangular shape Except for the sides of the triangles in contact with each other in the folded portion, the free state is maintained without being bonded to the inside of the front surface 210a or the rear surface 210b.

The folded portion 230 is formed by cutting a Gazzett e folded into a V-shape to a certain length, and then pulling the upper end portion to the outside of the center line to fold it into a right triangle shape. Are joined together.

The fabric consisting of the front (210a) and the back (210b) and the folded portion 230 of the contents storage unit 210 is a form of applying a thermal adhesive of a resin material that can be thermally bonded to the surface layer of the resin material difficult to heat adhesive The surface layer forms the outer surface of the container, and the resin layer forms the inner surface of the container. Therefore, the resin layer of the fabric constituting the front surface 210a of the contents storage portion 210 and the resin layer of the fabric constituting the back surface 210b of the contents storage portion 210, the front surface 210a of the contents storage portion 210. The resin layer and the resin layer of the fabric forming the folded portion 230 and the resin layer of the fabric forming the back portion 210b of the contents storage portion 210 and the fabric layer forming the folded portion 230 are thermally bonded to each other. .

Therefore, no gap is formed between the upper end portion of the folded portion 230 and the front surface 210a and the rear surface 210b of the content storage portion 210. FIG. 2 illustrates a bottom surface of a conventional self-supporting zipper container.

Referring to Figure 2, the lower end of the folded portion 230, the lower side of the V-shaped folded portion 232 is bonded to the front and back in a triangular shape, it can be seen that the back and the lower end 234 of the front and back. When the contents are contained in the self-contained container as shown in FIGS. 1 and 2, compressed air is blown from the upper side while the upper end of the container is opened to make the bottom of the container unfolded, and then the contents are layered.

In this process, the upper end 231 of the folded portion 230 folded in a triangle breaks due to the pressure of the compressed air. That is, when the compressed air is blown in, the upper end portion 231 folded in a triangular shape of the folded portion 230 becomes a funnel shape, and the side edge of the upper end portion 231 folded in a triangular shape, that is, a portion joined by heat bonding is applied to pressure. There is a problem that occurs when the burst. On the other hand, even if the contents are stacked in a stand-alone container as shown in Figures 1 and 2, even if the container is pulled to one side occurs.

Specifically, as shown in FIG. 2, both sides of the bottom side of the folded portion 230 are divided in a V shape, and when the container is up, it is arbitrary to which side the portions branched in the V shape are oriented. There is a problem that can not stand properly when the container is swept away. ^{^}

[Detailed Description of the Invention]

[Technical problem]

An object of the present invention is to provide a self-supporting container that does not burst when the upper end of the folded portion is blown even when opening the upper end and blowing compressed air to solve the above problems.

Another object of the present invention is to provide a stand-alone container ¾ that can stand properly without being oriented in either direction when the container is filled with the contents. ^'

Another object of the present invention is to provide a fold joining device for joining a fold of a container.

[Technical Solution]-The first embodiment of the self-supporting container according to the present invention for achieving the above object is

A contents storage unit in which contents are stored and the front and rear surfaces are overlapped in two layers at the upper and lower ends to form a space required for storage;

An opening and closing portion in which contents are discharged, the front surface of which is connected to the front surface of the contents storage unit, and the rear surface of which is connected to the rear surface of the contents storage unit as one layer, and overlapped in two layers at both sides and at the top; And

And a folded portion folded into an inner portion of the contents storage portion each connected to the contents storage portion and the sides of the front surface and the rear surface.

The folded portion is folded in a V-shape, the upper end is folded outward, characterized in that bonded between the front and back. A second embodiment of a self-supporting container according to the present invention for achieving the above another object is

A content non-storage unit in which contents are stored and the front and rear sides are overlapped in two layers at the upper and lower ends to form a space for storage;

The contents are discharged, the front and the front and the front and the contents storage unit An opening / closing portion of which a back side which is connected to the back side and one side of the contents storage part is overlapped in two layers at both sides and the top; And ᅳ a fold portion that is folded into an inner portion of the contents storage portion and is connected to the front and rear surfaces of the contents storage portion, respectively.

The lower part of the folding part and the lower part of the front and rear surfaces are arranged with a spare section so as to be spaced apart from each other, and in the state where the folding part is folded in a V-shape, the lower end of the folding part is joined to the front and rear surfaces in a triangular shape, respectively. It is characterized in that formed by joining the spare section of the front and back. Folded portion thermal bonding apparatus according to the present invention to achieve the above another object

A guide for maintaining a folded state of the gadget in a V-shape in a foldable thermal bonding device of a self-contained packaging container bonded to the left and right edges of a packaging container consisting of upper and lower fabrics and bonded to a V-shape;

A first bending sphere positioned in front of the guide and in contact with an upper surface of the gadget in a conveying direction of the gadget and having an inclined surface having a predetermined angle;

A second bending sphere having a second inclined surface that is inclined to the inclined surface of the first bending sphere in the conveying direction of the gadget and reciprocating in a direction transverse to the conveying direction of the gadget;

A first driving part which transfers the _second bending sphere in the vertical direction;

A second driving part configured to reciprocate the second bending sphere in a direction transverse to the conveying direction of the gadget; 맟

It is preferable to include a thermal bonding portion for thermally bonding the upper and lower fabric to the folded portion folded outward by the up and down and reciprocating motion of the second bending sphere.

here,

A stopper for pinching the folded portion at a rear end of the second bent sphere; And

Preferably, the cutter further includes a cutter for cutting the upper end of the folded portion when the folded portion is sandwiched by the stopper.

Here, the cutter is provided with a blade-shaped blade, it is preferable that the cutter is conveyed outward in a direction crossing the conveying direction of the folded portion.

Advantageous Effects

The self-supporting packaging container according to the present invention when opening the upper end and blowing compressed air Even when the upper part of the folding part does not burst, and the container is filled up after filling, it has an effect that it can stand properly without being oriented in either direction.

On the other hand, the junction portion thermal bonding device according to the present invention has the effect of providing a container having excellent adhesion by folding the upper end of the folded portion of the self-supporting packaging container outwardly to be attached between the front and rear of the container.

[Brief Description of Drawings]

1 shows an example of a conventional freestanding packaging container.

Figure 2½ shows the bottom of a conventional freestanding zippered container.

3 shows a first embodiment of a freestanding container according to the invention.

4 diagrammatically illustrates a method of constructing the freestanding container shown in FIG. 3. 5 shows a second embodiment of a freestanding container according to the invention.

FIG. 6 shows a variant of the second embodiment of the packaging container shown in FIG. 4.

7 shows a configuration of a fold joining device according to the present invention.

8 illustrates an operation of folding the fold outward by the first bend and the second bend. .

9 shows the transport state of the gadget.

10 shows a state where the gadget is being bitten by the stopper.

11 shows a state in which the gadget is cut by the cutter.

12 illustrates a state in which a part of the tip of the gadget is folded upward by the second bending sphere. 13 is a front end to a folded part of the gadget to the outside by ^■ obtain the second bending shown.

14 shows a thermal bonding process.

15 shows a cross section of the junction. ^'Figure 16 shows a position of the through hole.

[Best form for implementation of the invention]

3, the first embodiment of the self-supporting container according to the present invention, after folding the upper end 331 of the folded portion 330 to the outside, the front 310a and the back 310b of the contents storage unit 310, And (not shown).

When joining in this way, since the front and rear of the upper end portion 331 folded in a triangular shape is bonded to the front surface 310a and rear surface 310b of each container, the adhesive force increases.

In addition, when the upper surface of the container is opened, only the folded portion at the upper end of the folded portion 302— Only the stomach is exposed, so that even if the compressed air is blown, the adhesive site does not burst. FIG. 4 diagrammatically illustrates a method of constructing a self-contained container shown in FIG. 3.

The upper and lower shaft fabrics 310a and 310b for forming the front and back sides of the contents packaging part 310 are transferred along the fabric conveying direction at predetermined intervals. Meanwhile, the gadgets for forming the folded portion 330 are provided. 312a) 312b is conveyed along the fabric conveyance direction between upper and lower fabric 302a, 302b.

After the transfer of the upper and lower fabrics 302a and 302b and the gadgets 312a and 312b is stopped, the tops of the gadgets 312a and 312b are cut and folded outwards to a certain length. After that, the folded portions of the upper and lower side fabrics 302a and 302b and the gadgets 312a and 312b are thermally bonded. Cutting, folding and thermal bonding operations of the gadgets 312a and 312b will be described in more detail with reference to FIGS. 5 shows a second embodiment of a freestanding container according to the invention.

Referring to FIG. 5, the second embodiment of the self-supporting container according to the present invention is arranged such that the lower end of the folded portion 330 and the lower end of the front and rear surfaces of the container have a margin of a predetermined width (W). Able to know.

The lower end 336 of each side of the folded portion 330 folded in a V shape with respect to the center line in the state arranged in this way is adhered to the front and back of the container in a triangular shape. Subsequently, the margins 338 on the front and back sides of the container are bonded.

At this time, as shown in Figure 6, as a modified embodiment of the second embodiment may be configured in a wider width (wl> w) so that the spare section overlaps a portion of the lower end of the folded portion 330. In this configuration, even when the lower end of the foldable portion 330 is opened when the stand-alone container is opened, the spare section is folded in the same direction on both sides of the bottom of the container, so that the container is stably erected without falling to either side. 7 shows the configuration of a foldable thermal bonding device according to the present invention.

Fold portion thermal bonding device 700 according to the present invention is installed in the transfer path of the upper and lower fabric 302a (302b) and the gadget (312a) 312b to be conveyed as shown in FIG.

The fold joining device 700 cuts the gadgets 312a and 312b, folds outwards to a certain length from the cut surface, and folds the folded portions of the gadgets 312a and 312b up and down fabric 302a and 302b. The thermal bonding operation is performed in order to form a container 300 in which the folded portion 330 is thermally bonded to the contents storage portion 310. ᅳ Referring to FIG. 7, the base 100 is installed horizontally on a base on which the gadgets 312; 312a and 312b and the upper and lower fabrics 302; 302a and 302b are transferred, and on the base 100. The thermal adhesive support plate 200 is installed.

The gadget folded in a V shape (gazzeUe) is to configure the folded portion 330 of the packaging container (300).

One side of the heat-adhesive support plate 200 is provided with a guide 402 spaced apart upward to keep the gadget 312 folded in a V-shape.

The upper and lower surfaces of the gadget 312 folded in a V shape with the guide 402 interposed therebetween are superimposed. _,

In addition, in front of the guide 402, the first bending sphere 404, which is formed with an inclined surface having a predetermined and inclined angle, is spaced upwardly to hold the folded surface when the gadget 312 is bent. \.

In front of the first bent portion 404, the second bent sphere 406 having an inclined surface opposite to the inclined surface of the first bent portion is provided adjacent thereto.

Gadget 312, which is folded in a V-shape by the guide 402, has the upper end portion 312-1 folded outwardly by the first bend 404 and the second bend 406. . 8 illustrates an operation of folding the folded portion outwardly by the first bending sphere and the second bending sphere.

7]. The upper end portion 312-1 of the gadget 312 folded in a V shape by the guide 402 is bent upward when the second bending sphere 406 is conveyed upward.

Subsequently, when the second bending sphere 406 is transferred outward, the upper portion 312-1 which has been bent upwards is bent outward again to form a portion 312-2 that is folded in a triangle.

In this state, the upper end portions 312-2 and the upper and lower fabrics 302a and 302b that are folded out of the gadget 312 by the thermal bonding holes 700 are bonded to each other. Referring again to Figure 7, reference numeral 500 is a stopper _. 600 is a cutter.

The stopper 500 includes an upper support 500a and an upper support 500b, and when the upper support 500a is lowered by an actuator (not shown), the gadget 312 is provided with the upper support 500a and the lower support ( 500b). The stopper 500 is the rear end of the second bending sphere 406 That is, after the second bending sphere 406 in the conveying direction of the gadget 312. That is, the gadget 312 is firmly held by the stopper 500 in a state where the transfer operation of the gadget 312 is stopped.

When the gadget 600 is pulled out while the gadget 312 is bitten by the stopper 500, the gadget 312 is cut off. In other words, the gadget 312 is cut by the cutter 600 while the gadget 312 is held by the stopper 500.

The cutter 600 has a blade-shaped blade 602, which effectively cuts the gadget 312 folded into a V-shape. Namely: The gadget 312 is cut to the hooked blade 602 and the jet 312 is cut by pulling the gadget 312. An actuator (not shown) is provided for driving the cutter 600. 9 to 12, the operation of the thermal bonding apparatus according to the present invention will be described in detail.

9 shows the transport state of the gadget.

Referring to FIG. 9, gadgets 312a and 312b are horizontally transferred at regular intervals. In order to allow the gadgets 312a and 312b to be conveyed in a folded state in a V shape, the gadgets 312a and 312b are halved in a lor (not shown) in front and rear of the conveying direction of the gadget ᅳ 312a and 312b. A flat plate-shaped guide 402 is provided between the upper and lower surfaces of the V-shaped while being released or pulled in a folded state. Note that in Figure 9 the stopper 500 is released. 10 shows a state in which the gadget is being bitten by a stopper.

When the upper support 500a is lowered by an actuator (not shown), the gadgets 312a and 312b are bitten between the upper support 500a and the lower support 500b of the stopper 500. Note that cutters 600; 600a and 600b are located between gadgets 312a and 312b. 11 shows a state in which the gadget is cut by the cutter.

Pulling the cutters 600a and 600b outwards cuts the gadget 312. 12 illustrates a state in which a part of the tip of the gadget is folded upward by the second bending sphere. Since the cross section of the first bend sphere 404; 404a, 404b and the cross sections of the second bend sphere 406; 406a, 406b face each other in a diagonal line, the second bend sphere 406 is moved upwards to provide a gadget. The tip portion 312-1 of 312 is folded upward. FIG. 13 shows a state in which a part of the tip of the gadget is folded outward by the second bending sphere.

In the state of FIG. 12, when the second bending sphere 406 is pulled outwardly, a portion of the tip 312-1 of the gadget 312 is folded outwards to close the folded portions 312-2; 312a-2 and 312b-2. To form.

In summary, when the gadget 312 is cut by the cutter 600, the second bent portion 406 is moved upward to move the tip portion 312a-l (312b-l) of the cut gadget 312 upward. And fold the second bend 406 outward to form the folded portion 312-2 by folding the gadget 312 and tip portion 312-1 outward.

The second bending sphere 406 transported outward is transported downward and transported inward to wait for the next operation. 14 shows a thermal bonding process.

When the folded portion 312-2 is formed by folding the ^' tip portion 312-1 of the gadget 312 outward by the upward transfer of the second bending sphere 406 and the transfer to the outside, the thermal bond hole ( The 700 and 700a and 700b are operated to thermally bond the upper and lower fabrics 302a and 302b and the folded portion 312-2 to each other.

The thermal bonding support plates 200 (200a, 200b) support the upper and lower fabric 302 and the gadget 312 at the time of thermal bonding.

When the upper and lower fabrics 302a and 302b and the folded portion 312-2 are thermally bonded to each other, the cutter 600 is pulled by pulling the upper and lower fabrics 302a and 302b in the fabric transport direction and transferred together with the gadget 312. ) To the original position.

Since the outer circumferential surface of the cutter 600 forms a smooth curve, it passes over the gadget 312 while returning to the initial position while contacting the bottom of the gadget 312.

On the other hand, the punch 800 which forms a through hole in the gadget 312 can be arrange | positioned in front of the guide 402.

When the through-holes penetrating the upper and lower surfaces of the gadget 312 folded in the V-shape are released, the inner surface and upper and lower fabrics of the folded portion 312-2 are interposed between the through-holes during the bonding by the thermal joint 700. 302a and 302b are bonded to each other to further increase adhesion. Figure 15 shows a cross section of the junction.

FIG. 15A illustrates a state where the gadget 312 and the front surface 310a and the rear surface 310b are not bonded to each other. Since the gadget 312 is folded in a V shape, it is illustrated as being made of two layers. In addition, it is shown that the upper end 312a of the gadget 312 is folded and a through hole 802 is formed at one side.

FIG. 15B shows that the thermal bonding is performed in the state shown in 15A.

The gadget 312 and the front face 31 and the back face 310b both have a two-layer structure of a heat sealable layer (inner face) and a non heat bondable layer (outer face). Heat-adhesive layers (insides) are thermally bonded to each other by facing each other and applying heat.

When the gadget 312 is folded into a V-shape, it is folded so that its inner surface is exposed to the outside. Therefore, in the bar shown in FIG. 15A, the left and right sides of the gadget 312 and the left and right sides of the upper end 312a are layers capable of thermal bonding (inner surface).

In addition, the right side of the front surface 310a and the left side of the rear surface 310b are layers (inside surface) that can be heat-bonded.

The upper end 312a of the gadget 312 contacts the back side 302b through the through hole 802.

One side of the upper end 312a is thermally bonded to the right side of the front surface 302a and the other side is thermally bonded to the left side of the rear surface 302b. In other words, there is a through-hole 802 so that the upper end 312a of the gadget 312 abuts the rear face 302b, so that the thermal bonding results do not occur between the gadget 312 and the upper end 312a: through The hole 802 is hatched to show that it is thermally bonded through the through hole 802. In practice, the gadget 312, front 302a, and -back 302b are made of a very thin material, so through the through hole 802

The right side of the upper side 312a and the right side of the rear side 302b are thermally bonded to each other.

FIG. 15C shows a thermal bonding state when there is no through hole 802. Compared with (b), it can be seen that the bonding state is different. That is, since there is no through hole 802, the upper end 312a of the gadget 312 does not contact the rear surface 302b, so that the result of the thermal bonding with the gadget 312

It can be seen that the upper end portion 312a is spread out from each other. 16 shows the position of the through hole. 16, the position of the through hole 802 can be adjusted.

16 (a) shows the case where the distance between the center of the through hole 802 and the edge of the container is larger than the radius of the through hole 802.

16 (b) and 16 (c) show the distance between the core of the through hole 802 and the edge of the container. The case where it is smaller than the radius of the through-hole 802 is shown. Explanation of the sign

302 ... fabric 312 ... gadgets

402 ... Guide 404 ... Bent Section 1

406.Second bend

500 ... stopper 600 ... cutter

700 ... thermal junction

Claims

[Range of request]

[Claim 1]

A contents storage unit in which contents are stored, and the front and rear surfaces are overlapped in two layers at the upper and lower ends to form a space for storage;

Contents are discharged, the front and the front and one of the contents storage unit and the back and the one and the back of the contents storage unit, the opening and closing portion is overlapped and bonded in two layers at both sides and the top; and ^'

And a folded portion folded into an inner side of the contents storage portion, each connected to one side of the front and rear surfaces of the contents storage portion,

The folded portion is a self-contained packaging container characterized in that the upper end is folded in the state of being folded in a V-shape and then bonded between the front and back.

[Claim 2]

An opening and closing portion in which contents are discharged, the front surface of which is connected to the front and one of the contents storage unit, and the rear surface which is connected to the rear surface and one of the contents storage unit, overlapped in two layers at both sides and at the top; And

Includes a folded portion folded inwardly of the contents storage portion each connected to one side of the front and rear surfaces of the mall contents storage portion,

The lower end of the folding part and the lower end of the front and rear sides are arranged with a spare section, and in the state where the folding part is folded in a V-shape, the lower end of the folding part in a triangular shape respectively bonded to the front and rear and Self-supporting packaging container characterized in that formed by joining the spare section of the front and back of the mall.

[Claim 3]

A foldable thermal bonding apparatus of a self-contained packaging container bonded to the left and right edges of the packaging container made of upper and lower fabrics V-shaped and bonded to the bottom, the guide for maintaining the folded state of the gadget V-shaped;

A second bending sphere having a second inclined surface that is opposite to the inclined surface of the first bending sphere in the conveying direction of the gadget and reciprocating in a direction transverse to the conveying direction of the gadget; A first driving part for transferring the second bending sphere in a vertical direction; .

A second driving unit for reciprocating the second bending sphere in a direction transverse to the conveying direction of the gadget; and

Folded portion joining apparatus of the self-supporting packaging container comprising a thermal bonding portion for thermally bonding the folded portion folded outward by the up and down and reciprocating motion of the second bending sphere with the upper and lower fabric.

[Claim 4]

The method of claim 3,

Folded portion joining apparatus of the self-supporting packaging container further comprises a punch located in the front end of the guide to form a through hole in the upper end of the fold.

[Claim 5]

The method of claim 3, wherein _:

A cutter for cutting an upper end of the folded portion when the folded portion is sandwiched by the stopper;

Self-contained packaging container and folds junction device further comprising.

[Claim 6]

The method of claim 5,

The cutter is provided with a hook-shaped blade, the folded portion joining apparatus of the self-supporting packaging container, characterized in that the conveying outwards in the direction transverse to the fold folding direction. ᅳ

[Claim 7]

The method of claim 3, wherein-. The folding unit of the foldable packaging container of the self-supporting packaging container characterized in that the upper portion is folded in half in a V-shape folded state and then joined between the front and rear sides.

[Claim 8]

The self-supporting packaging according to claim 3, wherein a through hole is formed in a portion of the folded portion that is covered by a portion of the upper end folded so that one side of the upper end is adhered to the back side through the through hole when bonded. Device for joining the fold of the container.

[Claim 9]

The method of claim 8, wherein the distance between the center of the through hole and the edge of the container is Foldable part joining device of the self-supporting packaging container, characterized in that larger than the radius of the through-hole.

[Claim 10]

The apparatus of claim 8, wherein the distance between the center of the through hole and the edge of the container is smaller than the radius of the through hole. ^"