JP2000043937A - Container and production of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a bag-in-box efficiently, by forming a container, for storing an inner bag, from an outer box, having a bottom part and a lid part on its body part comprising four side-plates, and an octagonal tubular frame body, having side- plates and corner side-plates which are alternately continuous, and by bonding the side-plates of the octagonal tubular frame body to the internal faces of the side-plates of the outer box. SOLUTION: A container for storing an inner bag filled with food, drink, detergent, or the like is formed from an outer box 10 and an octagonal tubular frame body 100. In the outer box 10, lid-plates and bottom-plates are continuously provided at the tops and bottoms of four side-plates 11, and also the four side-plates 11 are formed into the shape of a quadrangular tube via a bonding plate 12 and the bottom-plates are fitted together. In the octagonal tubular frame body 100, a strip body comprising corner side-plates 102 and side-plates 103 which are alternately and continuously provided inside side-plate component-plates 101 is bent between the plates, and its open ends are butted against each other. Then, the frame body 100 is positioned in the outer box 10, and the side-plate component-plates 101 and the side-plates 103 are bonded to the corresponding side-plates 11. Thereafter the inner bag is stored into the frame body 100, the lid-plates are fitted together to seal it, and, a bag-in-box is thus completed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a beverage (concentrated stock solution,
Diluents), foods and drinks such as seasoning liquids (sources, soy sauce, ketchup, dressings, mayonnaise, etc.), non-foods such as detergents and developers, or inner bags filled with viscous bodies, powders, etc. For containers made of cardboard, etc., to prevent the body swelling of the container bulging outward due to the internal pressure due to the contents,
The present invention also relates to a container for preventing buckling when a large number of containers are stacked.

[0002]

2. Description of the Related Art Generally, a metal can or the like is used as a container for filling a large volume of liquid or the like. However, due to the problem of treating the container after use, a so-called bag-in-box in which the inner bag is housed in an outer box made of cardboard, which is easier to handle than a metal can, has been widely used. The bag-in-box is equivalent to the metal can in the function of protecting the contents, but is slightly inferior in the strength of the whole container. As a result, a so-called body swelling phenomenon occurs in which the outer box cannot completely protect the lateral deformation of the inner bag due to its own weight of the filled contents, and the body of the container swells outward. there were. In addition, when a plurality of back-in boxes are stacked, the lower bag-in-box is deformed by the weight of the upper back-in box without being able to withstand the load from above, that is, a so-called buckling phenomenon occurs. was there. Due to these phenomena, there is a possibility that the inner bag of the bag-in-box is broken or the cargo collapses. These phenomena are more likely to occur as the amount (weight) of the contents increases. For example, when the content exceeds 18 liters, the phenomena easily occur. As a bag-in-box to solve such a problem, the present applicant has proposed Japanese Patent Application Laid-Open No. 8-282735.

[0003]

The invention according to the above-mentioned application succeeded in solving the conventional problems in its function. However, the invention according to the above-mentioned application has a form suitable for separately mounting the frame body and the outer box and manually mounting both members.

[0004] Therefore, the present invention is to provide a bag-in-box having the above-described structure in a larger quantity by using a machine,
A new container for a bag-in-box and a method for manufacturing the container, which can be manufactured in a larger amount and more efficiently, are proposed.

[0005]

In order to solve the above problems, the container of the present invention according to claim 1 is a container for accommodating an inner bag, wherein a bottom portion and a lid portion are provided on a body portion composed of four side plates. A rectangular parallelepiped outer box provided, and an octagonal cylindrical frame body in which side plates and corner side plates are alternately connected, and the side plate of the octagonal cylindrical frame is bonded to the inner surface of the side plate of the outer box. Characteristic container.

According to a second aspect of the present invention, there is provided the container according to the present invention, wherein the octagonal tubular frame is a band-shaped body in which square side plates and side plates are alternately connected sequentially inside two side plate constituting plates at both ends. The octagonal tubular frame has a side plate constituting plate, and / or a side plate adhered to a side plate inner surface of the outer box. Container.

According to a third aspect of the present invention, only the side plate constituting plate of the octagonal tubular frame and a side plate facing the side plate constituting plate are adhered to the inner surface of the side plate of the outer box. Container.

According to a fourth aspect of the present invention, in the container, the octagonal cylindrical frame is formed by laminating and adhering both side ends of a strip having side plates and square side plates alternately connected. A container characterized in that the side plate of the frame is adhered to the inner surface of the side plate of the outer box.

According to a fifth aspect of the present invention, in the container, the octagonal cylindrical frame is provided with an adhesive plate connected to an outer portion of a side plate located at one end of the band, and the adhesive plate is connected to the other end. A container characterized by being overlapped and adhered to an outer surface of a side plate.

The container of the present invention according to claim 6, wherein the octagonal cylindrical frame is bonded to the inner surface of a side plate of the outer box by only a pair of side plates among the side plates. It is.

The container of the present invention according to claim 7 is a container characterized in that a vertical folding line is provided in a set of opposed square side plates of the octagonal cylindrical frame.

The container according to the present invention is characterized in that an adhesive plate located at one end of the body of the outer box is overlapped and adhered to an outer surface of a side plate located at the other end.

According to a ninth aspect of the present invention, there is provided a method of manufacturing a container for accommodating an inner bag filled with a liquid, the method comprising bending a belt-like body in which side plates and square side plates are alternately connected.
A step of forming and maintaining a cylindrical frame in an octagonal cylindrical frame; and forming the octagonal cylindrical frame with a bottom portion and a lid portion above and below each side plate of a body portion in which four side plates are sequentially connected. And a mounting step of placing the outer box blank on the side plate, and bending each side plate of the body of the outer box blank around the octagonal tubular frame, and the outer box side plate. A bonding step of bonding the octagonal cylindrical frame side plate, a box making step of bonding and fixing the body of the outer box in a rectangular cylindrical shape, and a bottom assembling step of assembling the bottom of the outer box. A method for producing a container, characterized in that:

According to a tenth aspect of the present invention, in the container manufacturing method, the mounting step of mounting the octagonal tubular frame on the outer box blank includes folding the other side plate on both sides of one side plate of the outer box blank. The method of manufacturing a container, characterized in that the octagonal tubular frame is attached after forming and maintaining an open state.

According to an eleventh aspect of the present invention, in the method for manufacturing a container according to the present invention, the step of forming the cylindrical frame includes the step of forming a band-like body in which square side plates and side plates are alternately and sequentially connected inside two side plate constituting plates at both ends. A method for producing a container, comprising a step of forming and maintaining the side plate constituting plate in a state where the open side ends are abutted or approached to each other.

According to a twelfth aspect of the present invention, in the method for manufacturing a container according to the present invention, the step of forming the cylindrical frame is a step of overlapping and bonding both side ends of a strip having side plates and corner side plates alternately connected. This is a method for producing a container characterized by the following.

According to a thirteenth aspect of the present invention, in the method for manufacturing a container according to the present invention, the step of forming the cylindrical frame includes the step of forming an adhesive plate connected to an outer side of a side plate located at one end of the strip. A method for manufacturing a container, comprising a step of overlapping and bonding the outer surface of the other end corner side plate.

According to a fourteenth aspect of the present invention, in the method of manufacturing a container, the box forming step is performed by overlapping and bonding an adhesive plate located at one end of the body of the outer box to an outer surface of a side plate located at the other end. A method for producing a container, characterized in that:

A method of manufacturing a container according to the present invention is a method of manufacturing a container for storing an inner bag filled with liquid, wherein the upper and lower sides of each side plate of a body portion in which four side plates are sequentially connected. A box forming process of forming the body of the outer box blank in which the bottom and the lid are connected to each other into a rectangular tube shape, and the square side plates and the side plates are alternately connected sequentially inside the two side plate constituent plates at both ends. The band-like body is formed by folding the side plate constituting plate so that the open side edges thereof are overlapped or close to each other.
In a state of being bent into a rectangular cylindrical frame, it is inserted into the inside from the lid or bottom opening of the outer box, and then the strip is brought into contact with the inner side plate of the outer box, with the side plate constituting plate and the side plate of the strip. To form an octagonal tubular frame with the ends of the side plate constituting plates abutting or approaching each other, and forming the side plate constituting plate and the side plate of the octagonal tubular frame into side plates of the outer box. A method for manufacturing a container, comprising: a mounting step of bonding to an inner surface; and a bottom assembling step of assembling the outer box bottom portion after the box making step or after the mounting step.

The method of manufacturing a container according to the present invention is a method of manufacturing a container for storing an inner bag filled with a liquid, wherein the upper and lower sides of each side plate of a body portion in which four side plates are sequentially connected. A box forming process of forming the body of the outer box blank in which the bottom and the lid are connected to each other in a parallelogram cylindrical shape, and a side plate located at one end of a band-like body in which side plates and square side plates are alternately connected A step of forming a deformed octagonal cylindrical frame by laminating an adhesive plate continuously provided on an outer portion of the outer box, and bonding the adhesive plate to an outer surface of the other end side plate; and a lid portion of the outer box. Or a mounting step of inserting the deformed octagonal cylindrical frame into the inside from the bottom opening portion, and then folding back the outer box and the octagonal cylindrical frame into a rectangular cylinder and an octagonal cylinder; And a bottom assembly step of assembling a bottom.

[0021]

The container according to the first aspect of the present invention comprises an outer box for storing the inner bag and an octagonal cylindrical frame attached and bonded inside the outer box. The greatest feature of the present invention is that the octagonal cylindrical frame is provided and bonded to the outer box. By providing this octagonal tubular frame, the outer box has a double structure with the octagonal tubular frame, so that the strength against a load from above and a pressure from inside increases. In addition, since the frame is formed in an octagonal cylindrical shape, as a first function, the pressure acting on the outside of the container due to the weight of the contents uniformly acts on each side plate and the square side plate of the octagonal cylindrical frame. . For this reason, in the conventional container, since the pressure acting only on the side plates of the outer box is dispersed and acts on the eight side plates, the pressure acting on the side plates of the outer box decreases, and the side plates become doubled. Synergistically, it prevents blistering. Further, as a second function, a triangular reinforcing portion is formed at a corner of the outer box by a rectangular side plate of an octagonal cylindrical body. As a result, the strength from above is remarkably increased as compared with a mere outer box having double side plates, and can sufficiently resist a load from above the containers at the time of stacking, thereby preventing buckling. be able to. Further, it is easy to mechanize the production, and it can be easily produced by means such as a method described later.

In the container according to the second aspect of the present invention, the octagonal cylindrical frame is formed by abutting or approaching the ends of one strip. With such a configuration, since the octagonal tubular frame has no overlapping portion, a step does not occur on the inner surface of the octagonal tubular frame, and the step contacts the inner bag when the step comes into contact with the inner bag. There is no problem such as damage to the bag. In addition, since there is no overlapping portion, resource saving of members can be achieved.

In the container according to the third aspect of the present invention, only the side plate constituting plate of the octagonal cylindrical frame and the side plate opposed to the side plate constituting plate are bonded to the outer box. With this configuration, the used container of the present invention can be easily crushed after the lid and the bottom are disassembled in a state where the octagonal cylindrical frame is attached to the outer box. become. This means that if all the side plates of the octagonal cylindrical frame are bonded to the outer box, the outer box and the octagonal cylindrical frame lose their degrees of freedom,
The octagonal cylindrical frame always generates a force that resists the direction in which the outer box is crushed. This is because the octagonal cylindrical frame is bonded to the minimum necessary in consideration of both strength and disassembly.

In the container according to the fourth aspect of the present invention, the octagonal cylindrical frame is formed by bonding the ends of the band to each other. With such a configuration, formation of the octagonal tubular frame and maintenance of the octagonal tubular frame until it is mounted on the outer box are facilitated.

In the container according to the fifth aspect of the present invention, when the octagonal cylindrical frame is bonded to the ends of the strip, the adhesive plate at one end is bonded to the outer surface of the other square side plate. With this configuration, it is easy to form the octagonal cylindrical frame and maintain it until the octagonal cylindrical frame is attached to the outer box, and to position the step portion generated in the bonding portion at the corner of the octagonal cylindrical frame. This makes it possible to suppress problems such as scratches that may occur when the step portion comes into contact with the inner bag.

[0026] The container according to claim 6 is an octagonal cylindrical frame.
Glue only the paired side plate to the outer box. By adopting this configuration, the used container of the present invention is disassembled with the lid and the bottom in a state where the octagonal tubular frame is attached to the outer box, and then the body of the container is easily folded. Becomes possible. This is because, when all the side plates of the octagonal cylindrical frame are adhered to the outer box, the degree of freedom between the outer box and the octagonal cylindrical frame is lost, and the octagonal cylindrical frame in the direction in which the outer box is folded. The body always generates a force to withstand, because this is the minimum necessary adhesion considering both strength and disassembly.

In the container according to the seventh aspect of the present invention, the container of the present invention after use is provided by providing a vertical folding line on one pair of square side plates of the octagonal cylindrical frame opposite to each other, and the octagonal cylindrical frame in the outer box. After disassembling the lid and the bottom in the state of being mounted, the body of the container can be more easily collapsed. This is because the fold line of the outer box does not match the fold line of the octagonal cylindrical frame due to its setting, and the octagonal tubular frame must be bent at a part other than the fold line when it is folded. However, with this configuration, the octagonal cylindrical frame can be easily bent along the vertical fold line in accordance with the outer box.

[0028] The container according to claim 8 shows a favorable configuration of the outer box in the box making process of the outer box. In other words, in the container manufacturing method described below, in the method of folding the outer box blank around the octagonal cylindrical frame, the adhesive plate provided on the body side of the outer box is bonded to the outer surface of the other side plate. With this configuration, the bonding workability between the bonding plate and the side plate can be easily and efficiently performed.

According to a ninth aspect of the present invention, the octagonal cylindrical frame is mounted on the outer box blank while the outer box is left blank, and then the box is manufactured. With this method, the octagonal cylindrical frame can be securely mounted in the outer box, and the two members can be reliably and easily joined together by the adhesive applied to the outer box and / or the octagonal cylindrical frame in advance.

In the method for manufacturing a container according to the tenth aspect, since the outer box blank is formed in a state in which the upper surface is opened in advance, the positioning at the time of mounting the octagonal cylindrical frame in the next step is accurately and reliably performed. I can do it.

In the method of manufacturing a container according to the eleventh aspect, the octagonal tubular frame is formed by abutting or approaching the ends of one strip. With such a configuration,
Since the octagonal cylindrical frame has no overlapping portion, no step is generated on the inner surface of the octagonal cylindrical frame, and no problem such as damage to the inner bag due to contact of the step with the inner bag does not occur. . Also,
Since there is no overlapping portion, resource saving of members can be achieved.

According to a twelfth aspect of the present invention, when bonding the octagonal cylindrical frame to the ends of the strip, the adhesive plate at one end is bonded to the outer surface of the other square side plate. With this configuration, it is easy to form the octagonal cylindrical frame and maintain it until the octagonal cylindrical frame is attached to the outer box, and to position the step portion generated in the bonding portion at the corner of the octagonal cylindrical frame. This makes it possible to suppress problems such as scratches that may occur when the step portion comes into contact with the inner bag.

In the method for manufacturing a container according to the thirteenth aspect, when the octagonal cylindrical frame is bonded to the ends of the strip, the adhesive plate at one end is bonded to the outer surface of the other square side plate. With this configuration, it is easy to form the octagonal cylindrical frame and maintain it until the octagonal cylindrical frame is attached to the outer box, and to position the step portion generated in the bonding portion at the corner of the octagonal cylindrical frame. This makes it possible to suppress problems such as scratches that may occur when the step portion comes into contact with the inner bag.

The method for manufacturing a container according to the fourteenth aspect shows a good configuration of the outer box in the box making process of the outer box. That is,
By employing a configuration in which the adhesive plate provided on the side of the body of the outer box is bonded to the outer surface of the other side plate, the bonding work between the adhesive plate and the side plate can be performed easily and efficiently.

The method for manufacturing a container according to the fifteenth aspect is a method for manufacturing a container by inserting and bonding an octagonal cylindrical frame after forming an outer box. In a configuration in which the ends of the strips are abutted against each other or formed close to each other, the ends of the strips are miniaturized so as to overlap each other, and then inserted into an outer box that has been previously prepared. The octagonal cylindrical frame can be accurately and reliably bonded to the outer box by abutting and bonding to the side plate of the outer box.

A method of manufacturing a container according to a sixteenth aspect of the present invention relates to a manufacturing method of inserting an octagonal cylindrical frame after bonding an outer box, and bonding the octagonal cylindrical frame. This shows a manufacturing method of inserting and bonding the body into an outer box made in advance, and after deforming both the outer box and the octagonal cylindrical frame, inserting and bonding the octagonal cylindrical frame, The octagonal cylindrical frame can be accurately and reliably bonded to the outer box.

[0037]

Embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of the present invention,
Corrugated outer box 10 and corrugated octagonal cylindrical frame 10
It consists of 0. The outer box 10 has four side plates 11 and an adhesive plate 12.
And a lid plate 13 and a bottom plate 14 provided vertically above and below each side plate. The trunk portion is formed into a quadrangular cylindrical shape via the adhesive plate 12, and the bottom plate 14 is assembled. The octagonal tubular frame 100 has side plate constituting plates 101, which are substantially half the width of the side plate 103 described later, positioned at both ends.
A band-like body 110 composed of a corner side plate 102 and a side plate 103, which are alternately provided inward, is bent between the respective plates, and the open side ends of the side plate constituting plates 101 are abutted or approached to form an octagon. It is a cylindrical frame. Then, the octagonal tubular frame 100 is positioned inside the outer box 10,
The side plate constituting plate 101 and the side plate 103 located on the side opposite to the side plate constituting plate 101 are connected to the corresponding side plate 1 of the outer box 10.
1 are containers bonded to each other. Thereafter, the inner bag A having a spout is stored in the octagonal cylindrical frame 100 of the container,
The bag-in-box is completed by assembling and closing the lid plate 13 of the outer box 10.

In the above embodiment, only one side plate 103 opposed to both side plate constituting plates 101 of the octagonal cylindrical frame is bonded to the side plate 11 of the outer box 10, but this is done after using the container of the present invention. This is a configuration in consideration of ease of folding the outer box and the octagonal cylindrical frame flat. That is, when the side plate constituting plate of the octagonal cylindrical frame and all the other side plates are bonded to the side plate of the outer box, the outer box 1
The 0 and the octagonal cylindrical frame are firmly adhered, and the strength of the container is increased. However, a great deal of force is required when dismantling the container. That is, the bonding between the outer box and the octagonal cylindrical frame may be set in consideration of the strength improvement of the container and the ease of disassembly.

As shown in FIG. 4 (a), the octagonal cylindrical frame may be provided with vertical folding lines 104 extending to upper and lower ends of a pair of corner side plates 102 of the octagonal cylindrical frame. . By providing the vertical fold line 104, the operation of folding the container flat at the time of disposal is facilitated. That is, normally, when the container is folded, the octagonal tubular frame body has a square
It will bend within 2. This operation requires power. Therefore, if the vertical folding line 104 is provided in the corner side plate in advance, the bending operation can be easily performed.

Further, in the present container, it is preferable that the adhesive plate 12 on the body of the outer box 10 is bonded to the outer surface of the adjacent side plate 11. This is related to the method of manufacturing the container described below,
With this configuration, the efficiency of assembly work can be improved.

Next, another embodiment of the container of the present invention is shown in FIG.
It will be described in accordance with Since the outer case 10 is the same as that of the first embodiment, the description is omitted. The octagonal cylindrical frame body 200 is composed of a band-like body 210 in which corner side plates 202 and side plates 203 are alternately connected and an adhesive plate 201 is connected to one end. The strips 210 are bent between the plates, and the adhesive plate 201 is bonded to the outer surface of the adjacent corner side plate 202 to form an octagonal cylindrical frame.
Then, the octagonal cylindrical frame 200 is positioned inside the outer box 10, and the pair of opposing side plates 203 are connected to the corresponding side plates 1 of the outer box 10.
This is a container adhered to 1. Thereafter, the inner bag A having the spout is stored in the octagonal cylindrical frame 200 of the container,
The bag-in-box is completed by assembling and sealing the cover plate 13 of FIG.

In the present embodiment, when bonding the adhesive plate 201 to the side plate 203, it is preferable to bond to the outer surface of the side plate. With this configuration, the step of the paper thickness caused by the adhesion between the adhesive plate 201 and the side plate 203 is reduced by 8
Since it is located at the corner portion of the rectangular cylindrical frame, when the bag-in-box is completed, such a problem that the step portion comes into contact with and damages the inner bag is less likely to occur. However, the adhesive plate 201 is attached to the side plate 203.
It is also possible to adhere to the inner surface of the car.

Also in this embodiment, similarly to the first embodiment, the selection of the bonding position between the side plate of the octagonal cylindrical frame and the side plate of the outer box, the selection of the square side plate of the octagonal cylindrical frame, It is possible to select the presence or absence of a vertical folding line provided inside and to select the position of the adhesive plate of the outer box.

Next, a method for producing the container of the present invention will be described. First, a description will be given with reference to FIG. This manufacturing method is the first
This corresponds to the container of the embodiment. In the present manufacturing method, the band-shaped body 110 for the octagonal cylindrical frame in a blank state is wound around the jig a, and the open side ends of the side plate constituting plates 101 of the octagonal cylindrical frame 100 are abutted or brought close to each other. While maintaining the state, the tubular body forming step A for assembling the octagonal tubular frame body in the lying state is performed. On the other hand, as another process, after assembling the outer box 10 in a blank state, each of the side plate 11 (the second side plate from the left in the figure) located below and the upper side plate 11 (the rightmost side plate in the figure) located above Step B of applying the adhesive b to the surface is performed. Thereafter, a step C of assembling the side plates on both sides of the side plate located below at the time of assembling the blank outer box 10 is performed. Next, in the outer box 10 in this state, the octagonal cylindrical frame 100 is placed on the side plate 1 of the octagonal cylindrical frame.
A mounting step D is performed in which the insertion and placement of the outer plate 03 is in contact with the side plate 11 of the outer box 10. Thereafter, the side plate 11 located above the outer box 10 when the outer box 10 is assembled is bent around the octagonal cylindrical frame 100 so as to surround the octagonal cylindrical frame, and the adhesive b
Accordingly, a joining step E is performed in which the side plate constituting plate 101 located above the octagonal tubular frame 100 and the side plate 103 located below are bonded to the side plate 11 located above and below the outer box 10. Then, a box-making process (not shown) is performed in which the adhesive plate 12 of the outer box 10 is bent on the outer surface of the side plate 11 and an adhesive is applied to fix the adhesive. Further, a bottom assembling step F for assembling and sealing the bottom plate 14 of the outer box 10 by a known manufacturing method is performed, and then the jig a is extracted from the octagonal cylindrical frame 100, thereby completing the container of the present invention. Thereafter, the container is raised upright. Then, an inner bag with a spout filled with the contents is housed in the container by a known manufacturing method, and a lid plate of the outer box is assembled and sealed to complete the bag-in-box.

In the above-described manufacturing method, the step C of assembling the side plates on both sides of the side plate located below at the time of assembling the blank outer box 10 can be omitted. In this case, immediately after the step B of applying the adhesive b, the mounting step D is performed.
Side plate 1 located on both sides and above when assembling blank 0
1 is simultaneously bent around the octagonal cylindrical frame 100 so as to wrap the octagonal cylindrical frame. In this manufacturing method, the device can be simplified, for example, a mechanism for maintaining the side plate of the outer box in an upright state is not required. On the other hand, by performing the process C, the positioning between the octagonal tubular frame and the outer box can be performed accurately and reliably in the mounting process D.

Here, a more specific embodiment of the jig a used in the tubular body forming step A is shown in FIGS. The embodiment shown in FIG. 7 includes eight plate-like members a1 corresponding to the respective side surfaces of the octagonal cylindrical frame and claws a2 sandwiching between the both-side plate constituting plates 101. Each of the plate-like members a1 can be moved inward from the state of a substantially octagonal cylindrical member. This plate-like body a1
In order to use, first, the plate-shaped body a1 is set to a large state,
A band 110 for an octagonal cylindrical frame is wrapped around the claw a2.
The octagonal tubular frame 100 is formed by sandwiching the end of the side plate constituting plate 101 by the above. The jig a raises the claw a2 upward after the process D, and releases the state of holding the octagonal cylindrical frame. Then, after the bottom assembling step F, as shown in FIG. 7B, each plate-like body a1 is moved into the inside of the octagonal cylindrical frame, and the entire plate-like body is a small, substantially octagonal cylindrical frame. And the octagonal cylindrical frame 10
The contact with 0 is released, and the plate-like body a1 is pulled out from the octagonal cylindrical frame.

The container according to the second embodiment of the present invention can be manufactured in substantially the same steps as in the above manufacturing method. That is, in the tubular body forming step A, after the tubular body 110 is wound around the jig a, a mechanism for attaching the adhesive plate 201 to the outer surface of the corner side plate 202 is added. Subsequent steps are the same as the method of manufacturing the container of the first embodiment.

Another manufacturing method of the present invention will be described. Another manufacturing method is a method in which after assembling the body and bottom of the outer box in advance, the octagonal cylindrical frame is inserted into the outer box and bonded. FIG.
Next, a method for manufacturing the container according to the first embodiment of the present invention will be described. After assembling the body and bottom of the outer box 10, FIG.
As shown in FIG. 5, both ends of the band-shaped body 110 for the octagonal cylindrical frame 100 are bent such that the open side edges of the side plate constituting plates 101 fold or come close to each other to form a substantially deformed octagonal cylindrical frame. In the formed state, it is inserted into the outer case 10 from the cover opening. Thereafter, as shown in FIG.
10, the side plate constituting plate 101 and the side plate 1
03 is spread out so as to be in contact with the inner surface of the side plate of the outer box, and formed into an octagonal cylindrical frame in a state in which the ends of the side plate constituting plates abut or approach each other, and the side plate of the octagonal cylindrical frame The component plate and the side plate are bonded to the inner surface of the side plate of the outer box.

Next, another method of manufacturing the container according to the second embodiment of the present invention is shown in FIG. After assembling the trunk of the outer box 10, the trunk of the outer box 10 is deformed into a parallelogram cylindrical shape as shown in FIG. On the other hand, the adhesive plate 201 of the strip 210 for the octagonal tubular frame 200 is overlaid and adhered to the outer surface of the corner side plate 202 to form a deformed octagonal tubular frame. And
The deformed octagonal cylindrical frame 200 is inserted into the outer box 10 from the cover or the bottom opening. Then, FIG.
As shown in (b), the outer box and the octagonal cylindrical frame are folded back into a rectangular cylinder and an octagonal cylinder. Outer box 10 and octagonal cylindrical frame 20
Adhesive is applied to the inner surface of the side plate of the outer box or the outer surface of the side plate 203 of the octagonal cylindrical frame in advance.
The square tubular frame 200 is fixed by being folded back to a normal state.

[0050]

The container according to the present invention comprises an outer box for accommodating the inner bag and an octagonal cylindrical frame attached and bonded inside the outer box. The outer box and the octagonal cylindrical frame are bonded together. As a result, the outer box
Since it has a double structure with the rectangular cylindrical frame, the strength against a load from above and a pressure from inside increases. In addition, since the frame body has an octagonal cylindrical shape, the pressure acting on the side plate of the outer box decreases,
Synergistically with the double side plate, the swelling is prevented.
In addition, by forming a triangular reinforcing portion at the corners of the outer box with the corner side plates of the octagonal cylindrical body, the strength from above is lower than that of a simple double side plate of the outer box. The strength is remarkably increased, and it is possible to sufficiently withstand the load from above the containers at the time of stacking, thereby preventing buckling.

In the container of the present invention, an octagonal cylindrical frame is formed by abutting or approaching the ends of one strip. With such a configuration, since the octagonal tubular frame has no overlapping portion, a step does not occur on the inner surface of the octagonal tubular frame, and the step contacts the inner bag when the step comes into contact with the inner bag. There is no problem such as damage to the bag. In addition, since there is no overlapping portion, resource saving of members can be achieved.

In the container of the present invention, the octagonal cylindrical frame is formed by bonding the ends of the belt to each other, so that the octagonal cylindrical frame can be easily formed and maintained until it is mounted on the outer box. I do.

The container according to the present invention comprises an octagonal cylindrical frame 1
By providing the vertical folding line on the squared side plate, the used container of the present invention can be easily crushed.

In the method of manufacturing the container of the present invention, the octagonal cylindrical frame is mounted on the outer box blank while the outer box is left blank, and then the box is manufactured. With this method, the octagonal cylindrical frame can be securely mounted in the outer box, and the two members can be reliably and easily joined together by the adhesive applied to the outer box and / or the octagonal cylindrical frame in advance.

According to the method for manufacturing the container of the present invention, the octagonal cylindrical frame is formed by abutting or approaching the ends of one band-like body so that the overlapping portion is formed on the octagonal cylindrical frame. Since no step is formed on the inner surface of the octagonal cylindrical frame, there is no problem that the step contacts the inner bag and the inner bag is damaged. In addition, since there is no overlapping portion, resource saving of members can be achieved.

The method of manufacturing the container is such that the adhesive plate provided on the body side of the outer box is bonded to the outer surface of the other side plate, so that the workability of bonding the adhesive plate and the side plate can be easily and efficiently performed. .

The method of manufacturing the container of the present invention is a method of inserting and bonding an octagonal cylindrical frame after the outer box is formed, thereby accurately and reliably removing the octagonal cylindrical frame. Can be glued to the box.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the container of the present invention.

FIG. 2 is a perspective view showing members of the container according to the first embodiment of the present invention.

FIG. 3 is a plan view of the first embodiment of the container of the present invention.

FIG. 4 is a plan view showing a modified example of the first embodiment of the container of the present invention.

FIG. 5 is a plan view showing a member according to a second embodiment of the container of the present invention.

FIG. 6 is an explanatory view showing a method for producing the container of the present invention.

FIG. 7 is a side view showing a jig used for manufacturing the container of the present invention.

FIG. 8 is a plan view showing a second method of manufacturing the container of the present invention.

FIG. 9 is a plan view showing a third method of manufacturing the container of the present invention.

[Explanation of symbols]

 10 Outer box 11 Side plate 12 Adhesive plate 100, 200 Octagonal frame 101 101 Side plate 102, 202 · Square side plates 103, 203 ··· Side plates 104 ··· Vertical folding line 201 ··· Adhesive plates 110 and 210 ··· Cylindrical body

Claims (16)

[Claims] 1. A container for storing an inner bag, which is an octagonal cylinder in which a rectangular parallelepiped outer box in which a bottom and a lid are provided on a body composed of four side plates, and side plates and square side plates are alternately connected. 8
A container characterized in that a side plate of a rectangular cylindrical frame is adhered to an inner surface of a side plate of the outer box. 2. The octagonal cylindrical frame body is a band-shaped body in which square side plates and side plates are alternately arranged sequentially inside two side plate constituent plates at both ends. The container according to claim 1, wherein the side plate constituting plate and / or the side plate of the octagonal tubular frame is bonded to an inner surface of a side plate of the outer box. . 3. The container according to claim 2, wherein only the side plate constituting plate of the octagonal tubular frame and a side plate facing the side plate constituting plate are adhered to the inner surface of the side plate of the outer box. 4. The octagonal cylindrical frame body is formed by laminating and bonding both side ends of a band-like body in which side plates and square side plates are alternately connected,
The container according to claim 1, wherein the side plate of the octagonal tubular frame is bonded to an inner surface of a side plate of the outer box. 5. The octagonal cylindrical frame body has an adhesive plate connected to an outer portion of a side plate located at one end of the band-shaped body, and the adhesive plate is overlapped and bonded to an outer surface of the other end square side plate. The container according to claim 4, characterized in that: 6. The octagonal cylindrical frame body according to claim 4, wherein only one set of opposing side plates of the side plates is adhered to the inner surface of the side plate of the outer box. container. 7. The octagonal cylindrical frame body is provided with vertical fold lines in a pair of opposed square side plates.
The container according to any one of the above. 8. The container according to claim 1, wherein an adhesive plate located at one end of the body of the outer box is overlaid and adhered to an outer surface of a side plate located at the other end. 9. A method for producing a container for accommodating an inner bag, comprising: bending a band-like body in which side plates and corner side plates are alternately provided;
A step of forming and maintaining a cylindrical frame in an octagonal cylindrical frame; and forming the octagonal cylindrical frame with a bottom portion and a lid portion above and below each side plate of a body portion in which four side plates are sequentially connected. And a mounting step of placing the outer box blank on the side plate, and bending each side plate of the body of the outer box blank around the octagonal tubular frame, and the outer box side plate. A bonding step of bonding the octagonal cylindrical frame side plate, a box making step of bonding and fixing the body of the outer box in a rectangular cylindrical shape, and a bottom assembling step of assembling the bottom of the outer box. A method for producing a container, comprising: 10. The mounting step of placing the octagonal cylindrical frame on the outer box blank is performed after the other side plate is folded up on both sides of one side plate of the outer box blank and the upper surface is opened and maintained. The method for manufacturing a container according to claim 9, wherein the octagonal cylindrical frame is mounted. 11. The step of forming a tubular frame comprises, in the inside of two side plate constituting plates at both ends, a band-like body in which corner side plates and side plates are alternately connected in sequence, and the side plate constituting plate is connected to open ends thereof. The method for producing a container according to claim 9 or 10, wherein the step is a step of forming and maintaining the container in an abutting or close state. 12. The method according to claim 9, wherein the step of forming the cylindrical frame is a step of laminating and adhering both side ends of a belt-like body in which side plates and corner side plates are alternately connected. Container manufacturing method. 13. The method according to claim 13, wherein the step of forming the cylindrical frame includes the step of forming an adhesive plate connected to an outer side of a side plate located at one end of the band.
13. The method for manufacturing a container according to claim 12, wherein the step of overlapping and bonding the adhesive plate to the outer surface of the other end corner side plate is performed. 14. The method according to claim 9, wherein in the box making step, an adhesive plate located at one end of the body of the outer box is overlapped and adhered to an outer surface of a side plate located at the other end. A method for producing a container according to any one of the above. 15. A method of manufacturing a container for accommodating an inner bag, comprising: a body portion having four side plates sequentially connected to each other; A box-forming process of forming the part into a rectangular tube shape, and a band-like body in which square side plates and side plates are alternately arranged sequentially inside two side plate constituent plates at both ends, and the side edges of the side plate constituent plates are folded together. Or nearly 8
In a state of being bent into the rectangular cylindrical frame, the inner box is inserted into the inside of the outer box through the cover or bottom opening, and then the band is brought into contact with the inner side plate of the outer box. So as to form an octagonal cylindrical frame in a state where the end portions of the side plate constituting plates abut or approach each other, and attach the side plate constituting plate and the side plate of the octagonal tubular frame to the inner surface of the side plate of the outer box. And a bottom assembling step of assembling the bottom of the outer box, which is performed after the box making step or after the mounting step. 16. A method for producing a container for storing an inner bag filled with liquid, wherein a bottom portion and a lid portion are provided continuously above and below each side plate of a body portion in which four side plates are sequentially provided. A box forming process of forming the body of the outer box blank into a parallelogram cylindrical shape, and an adhesive plate continuously provided on an outer portion of a side plate located at one end of a band-shaped body in which side plates and square side plates are alternately provided. Forming the deformed octagonal cylindrical frame by overlapping and bonding the adhesive plate to the outer surface of the other end corner side plate; and forming the deformed octagon from the lid or bottom opening of the outer box. A mounting step of inserting the cylindrical frame into the inside, and then folding back the outer box and the octagonal cylindrical frame into a square tube and an octagonal tube, and a bottom assembling step of assembling the bottom of the outer box. A method for producing a container, comprising: