JP5612935B2 - Storage container manufacturing method - Google Patents

Description

The present invention relates to a method for manufacturing a storage container , and particularly relates to a storage container having a plurality of subdivided storage portions.

  Conventionally, for example, as disclosed in FIGS. 7 and 10 of Patent Document 1 (Japanese Patent Application Laid-Open No. 2003-334871), a paper container (storage container) assembled by bending and pasting a key point of a single paperboard has been used. Are known. In addition, as described in the same document 1, the present applicant has previously proposed a technique for automatically assembling the seed paper container with a molding apparatus.

  Further, as shown in FIGS. 11 and 12 of the same document 1, the present applicant has previously proposed a storage container in which a plurality of small paper containers are incorporated in a large paper container. Such a paper storage container can be suitably used as a food container for display and sale of prepared dishes and Chinese dishes, and for lunch boxes.

  By the way, in recent years, plastic containers integrally molded with PET, polystyrene foam or the like have become widespread as this kind of food containers. However, in order to prevent destruction of the global environment, such as the generation of carbon dioxide due to the incineration of plastic products, the associated global warming, and the generation of harmful substances, it is required to reduce the number of plastic products as much as possible.

  Therefore, various paper containers as disclosed in, for example, Patent Document 2 (Japanese Patent Laid-Open No. 6-156480), Patent Document 3 (Utility Model Registration 3068464), and Patent Document 4 (Utility Model Registration 3097316) have been proposed.

Japanese Patent Laid-Open No. 2003-334871 JP-A-6-156480 Utility Model Registration No. 3068464 Utility Model Registration No. 3097316

  The paper containers described in Patent Documents 2 to 4 are on a conventional extension line, and are assembled as a container having a plurality of subdivided storage parts by bending and pasting the main points of a single paperboard, When compared with plastic containers, there were the following problems.

That is, since the conventional paper container is formed by bending and pasting a single paperboard, the thickness is thin and the rigidity is low. For this reason, when food is heated in a microwave oven or the like, there is a possibility that the rigidity is further lowered by the heat and water vapor generated, and it is difficult to hold, and depending on the way of attaching, there is a possibility that the juice leaks from the attaching part.
In addition, it consists of a single paperboard and has a bottom wall, a plurality of side walls, and a partition wall, so that bending and pasting are multi-step operations, and an automatic molding apparatus tries to assemble automatically. In this case, there is a problem that not only a large-scale apparatus having a complicated structure is required, but also only one type of storage container can be assembled with one apparatus.

The present invention has been made in view of the above-described conventional circumstances, and provides a novel storage container manufacturing method that is a storage container having a plurality of subdivided storage portions and can be easily assembled in a simple process. There is. It is another object of the present invention to provide a method for manufacturing a storage container that can prevent a decrease in rigidity (strength) due to heating. Furthermore, an object of the present invention is to provide a method for manufacturing a paper container that can be easily assembled by a simple process and can prevent a decrease in rigidity (strength) due to heating.
The present invention also provides a manufacturing method capable of easily manufacturing the storage container.

In order to achieve the above object, a method for manufacturing a storage container according to the present invention includes:
The storage container is formed by connecting a plurality of subdivided container bodies with an exterior body made of a single paperboard,
Each of the subdivided container bodies has the same size in the width direction,
The exterior body has at least a quadrangular bottom wall portion and a pair of side wall portions standing on a pair of opposite side edges in the bottom wall portion,
Each of the divided container bodies is arranged on the bottom wall portion of the exterior body so as to be aligned in a straight line with the width direction aligned ,
A gap is provided between the side plates of the subdividing container body facing each other on the bottom wall portion of the exterior body,
The bottom wall portion is formed with a bottom wall side notch corresponding to the bottom surface side opening of the gap,
In the side wall portion, a side wall side notch corresponding to the side surface side opening of the gap is formed continuously to the bottom wall side notch,
A plurality of storage containers can be overlaid by the gap, the bottom wall side cutout and the side wall side cutout, and in the overlapped state, the side wall portion and the side plate in the storage container inside Is a storage container that is formed to be held by a storage container on the outside,
A setting step of arranging the plurality of subdivided container bodies in a straight line with respect to the bottom wall portion of the exterior body;
Bending and pasting step of assembling the storage container by folding the pair of side wall portions in the exterior body through the crease and pasting the pair of side wall portions to the side plate;
Stacking the storage container on the previously assembled storage container to hold the assembled state; and
Including
The operation positions for performing the setting process, the bending / sticking process, and the stacking process are arranged in a straight line, and the male process for continuously performing the setting process, the bending / sticking process, and the stacking process. The mold is slidably disposed in each of the serial spaces (Claim 1).
Here, the subdivided container body may be made of paper or plastic, and the shape thereof is also circular, elliptical, triangular, quadrangular, trapezoidal, pentagonal or more polygonal shape in plan view. It is not limited.

(Blank)

Moreover, the manufacturing method of the storage container according to the present invention includes:
Each of the subdivided container bodies is assembled into a container having an upper surface opened by folding and pasting a key point of a single paperboard,
A square bottom plate, front and rear side plates that stand up to the periphery of the bottom plate via a fold, and a substantially fan-shaped folding plate that connects the side plates adjacent to each other;
Each side plate is preferably widened from the periphery of the bottom plate toward the top opening, and the side plate attached to the side wall portion is preferably formed so as to bulge outward. Item 2) .

The outer body is preferably stiffer than the dispensing container body (claim 3).
Moreover, it is preferable that the said exterior body has a heat conductivity lower than the said subdivision container body (Claim 4) . As the paperboard having a low thermal conductivity, for example, a single paper (so-called cardboard) having an appropriate thickness, single-sided cardboard, double-sided cardboard, multilayer cardboard, reinforced cardboard, and other known cardboard and paperboard can be used.

The said exterior body is good to provide the cover continuously provided through the crease | fold at the upper edge of either one of said pair of side wall parts (Claim 5).
Further, the outer body is made of the bottom wall portion and the side wall portion by cutting of the side wall notch upper part of the side wall portion, wherein an optionally dividable forming each dispensing container body (claim 6)

Furthermore, the storage container can be used, for example, as a food container or a lunch box container .

Since the present invention is configured as described above, the following effects can be obtained.
According to the first aspect, the storage container can be manufactured easily and quickly. In addition, a plurality of types of subdividing container bodies and exterior bodies can be prepared in advance, and desired subdivided containers and exterior bodies can be selected from them to produce storage containers having different shapes.

The storage container manufactured by the manufacturing method of the present invention has a double structure in which the bottom and side surfaces of a plurality of subdivided containers are reinforced with an exterior body, so that the strength is reduced even when heated in a microwave oven or the like. In addition to being suppressed, leakage of juice can be prevented.
Further, this storage container can be easily assembled by an extremely simple process of pasting a sub-container assembled in advance by an automatic molding apparatus to the exterior body. Therefore, compared to conventional paper containers that are assembled only by folding and pasting the key points of a single paper sheet material, it can be quickly manufactured by an automatic molding device with a simple structure, and can be provided at low cost. There are many effects such as being possible.
Furthermore, since there are gaps and notches on the bottom and side surfaces of the exterior body and each sub-container, the next storage container is added to the storage container that is assembled first and forcibly held during assembly work. It becomes possible to repeat.
Therefore, a plurality of subdivided containers are arranged and attached in a straight line on the bottom wall portion of the exterior body, and a pair of side wall portions in the exterior body are folded to assemble the storage container, and then assembled first. A simple work process of simply superimposing the state on the storage container in which the state is forcibly held adheres the sub-container to the exterior body. Therefore, the above-described effect that it can be rapidly manufactured by an automatic molding apparatus having a simple structure and can be provided at a low cost can be made more effective.

According to the second aspect of the present invention , since it is a paper storage container composed of a paper sub-container and a paper outer package, it is not necessary to separate from plastic and the like, and is easy to recycle, and is friendly to the global environment. It can be suitably provided as a container. Further, since the side plate of the sub-container is formed so as to bulge outward, the sub-container is attached to the exterior body in the manufacturing process in which the next storage container is superimposed on the pre-formed storage container. There are effects such as being held more reliably.

According to the third aspect , each of the above-described effects can be more effective because the exterior body has a predetermined strength.
According to the fourth aspect , since the exterior body suppresses heat conduction when heating by a microwave oven or the like, there is an effect that it is not hot even if the user has it and burns can be prevented.

According to the fifth aspect , since the storage container is provided with a lid, it can be suitably used as a take-out container such as sugar beet or a lunch box container.
According to the sixth aspect , it is possible to divide and use for each of a plurality of subdivided containers, and there is an effect that the application is expanded.
The storage container of the present invention can be suitably used as a food container or a lunch box container as described in claim 7 .

(Blank)

It is a perspective view which shows an example of the storage container manufactured with the manufacturing method of the storage container which concerns on this invention. It is an expanded view of a subdivision container body. It is a perspective view which shows the assembly process of a subdivision container body. It is an expanded view of an exterior body. It is a perspective view which shows the assembly middle state of a storage container. It is a perspective view which shows the other example of the storage container manufactured with the manufacturing method of the storage container which concerns on this invention. It is a perspective view which shows an example of use of the other example which concerns on FIG. It is an expanded view of the exterior body which concerns on FIG. It is simplified sectional drawing which shows the manufacturing process by the automatic molding apparatus of a storage container. FIG. 10 is a central longitudinal sectional view of FIG. 9.

Embodiments of the present invention will be described below with reference to the drawings.
(One manufacturing example)
FIG. 1 shows a perspective view of a storage container A with a lid. This storage container A has three sub-container bodies a1, a2, and a2 having the same size in the width direction attached to an exterior body b. It is assembled. In this example, although two subdivided container bodies a2 and a2 having the same size in the longitudinal direction are used, the sizes in the longitudinal direction may be different.

  The subdividing container body a1 is assembled by folding and pasting the main points of the paperboard a ′ shown in FIG. This paperboard a 'is made of double-sided cardboard, and is coated with polyethylene resin or the like on its inner side (storage space 9 side) to provide water resistance, stain resistance, etc., and has an appropriate thickness and strength (rigidity). I have. Further, the paperboard a ′ has front and rear side plates 3a, 3a, 3b, and 3b connected to the periphery of the rectangular bottom plate 1 through folds 2, 2, 2, 2, and the side plates 3 adjacent to each other. 3 are connected by a substantially fan-shaped folding plate 4. The folding plate 4 is connected to the side edge of the side plate 3 via a valley fold 5a and a mountain fold 5b, and has an oblique mountain fold 6 at the center. The part 4b is partitioned. Each side plate 3 has an inverted trapezoidal shape in plan view when the paperboard a ′ is expanded so as to expand from the periphery (fold 2) of the bottom plate 1 to the outside (the upper surface opening side of the subdividing container body a1). Is formed.

Next, an assembly method for assembling the paperboard a ′ into the subdivided container body a1 will be described. As shown in FIG. 3, the front, rear, left and right side plates 3a, 3a, 3b, 3b are raised through the crease 2 of the paperboard a '.
Further, the valley fold 5a is formed into a valley fold, the mountain fold 6 and the mountain fold 5b are formed into a mountain fold, and one half 4a of the folding plate 4 is attached to the outer surface of the side plate 3a, and the other half 4b is attached without being attached. It overlaps with the part 4a.

As a result, the side plates 3a, 3a, 3b, 3b are opened outward from the peripheral edge of the bottom plate 1 to the top opening while the pair of opposing side plates 3a, 3a bulge outward. The subdivided container body a1 having the storage space 9 on the inside is completed by inclining. The bulging side plates 3a and 3a exhibit a spring action so that the contact is well maintained when the storage containers A are overlapped.
The assembling operation shown in FIG. 3 can be performed automatically and quickly in a continuous manner by the prior art proposed by the present applicant described in Patent Document 1.

  The subdivided container body a2 is assembled by folding and sticking the main points of the paperboard a "shown in FIG. 2 (ii). A side receiving plate 8 serving as a receiver for a lid 15 described later is connected to one of the pair of side plates 3b, 3b facing each other via a fold 7 at the upper edge of the side plate 3b. ing. Since the other configuration is the same as that of the paperboard a ′, the same reference numerals as those in the drawing are used and redundant description is omitted.

Then, assembling is performed according to the procedure shown in FIG. 3 similarly to the above-described subdividing container body a1, and the side receiving plate 8 is folded back to the inner side (the storage space 9 side) via the crease 7, thereby allowing a pair of opposing sides. In a state where the face plates 3a, 3a bulge outward, the side plates 3a, 3a, 3b, 3b rise from the peripheral edge of the bottom face plate 1 to the upper surface opening so as to be opened outwardly, and the inner space is stored. The subdivided container body a2 to be 9 is completed.
The assembly operation of the sub-container body a2 can also be performed automatically and quickly and continuously by the technique previously proposed by the present applicant, like the sub-container body a1.

Next, the outer package b is assembled by bending the main points of the paperboard b ′ shown in FIG. This paperboard b ′ is made of double-sided corrugated cardboard, and has an appropriate thickness, a rigidity higher than that of the paperboard a ′, and a thermal conductivity lower than that of the paperboard a ′. The low heat conductivity mentioned here means that, for example, when the storage container A containing food is heated for a predetermined time in a microwave oven, the user of the storage container is hot only with the paperboard a ′ and cannot be held by hand. This storage container A has a thermal conductivity that can be held by hand.
In the paperboard b ′, a pair of side wall portions 13 and 13 are connected to side edges of a pair of long sides facing each other in the rectangular bottom wall portion 11 via fold lines 12 and 12. A lid 15 is connected to the upper edge of one side wall 13 via a fold line 14. An insertion portion 17 is connected to the upper edge of the lid 15 via a crease 16. The other side wall portion 13 is formed with a notch 19 into which the insertion piece 18 of the insertion portion 17 is inserted, and a receiving plate 21 is connected to the upper edge of the side wall portion 13 through a fold 20. ing.

  The above-described bottom wall portion 11 has a size and a shape that allow the subdivided container bodies a1, a2, and a2 to be arranged in a straight line along the width direction. Further, the bottom wall portion 11 is formed with a bottom wall side notch 22a corresponding to a bottom surface side opening of the gap 30 described later, and the side wall portions 13 and 13 correspond to side surface side openings of the gap 30. Side wall-side notches 22b are formed.

Then, as shown in FIG. 5, the pre-assembled sub-container bodies a1, a2, and a2 are arranged on the bottom wall portion 11 of the exterior body b so as to be aligned in a straight line with the width direction aligned. At this time, the subdivided container body a1 is located in the center, the subdivided container bodies a2 and a2 are located on both sides thereof, and a pair of side plates 3a and 3a bulging outward in each of the subdivided container bodies a1, a2 and a2 It arrange | positions so that the side wall parts 13 and 13 of the exterior body b may be opposed. That is, since the subdivided container bodies a1, a2, and a2 are aligned in the width direction, the side plates 3a, 3a, and 3a are formed on one plane. For this reason, when the exterior body b is exteriorized, each side plate 3a, 3a, 3a can contact | connect simultaneously with the one side wall part 13 of the exterior body b, and the below-mentioned sticking is performed. The same applies to the other side wall 13.
Further, the side wall portions 13 and 13 are raised through the fold lines 12 and 12, and the pair of side surface plates 3 a and 3 a are attached to the side wall portions 13 and 13, thereby completing the storage container A. At this time, a gap 30 is formed between the side plates 3b, 3b facing each other in the divided container bodies a1, a2 adjacent on the bottom wall portion 11 of the exterior body b. Further, a bottom wall side cutout 22 a and a side wall cutout 22 b formed in the bottom wall portion 11 and the side wall portions 13, 13 of the exterior body b are connected to the gap 30.
Note that the assembly work shown in FIG. 5 can also be carried out automatically and continuously in an easy and rapid manner by the prior art proposed by the present applicant described in Patent Document 1.

The storage container A assembled in this manner was used as a food container because the bottom surface side and the left and right side surfaces of each subdivided container body a1, a2, a2 have a double structure reinforced with an exterior body b. In this case, even when heated by a microwave oven or the like, the strength can be prevented from decreasing, and the leakage of the juice can be prevented.
In addition, since the exterior body b has a predetermined rigidity and the exterior body b is made of paperboard having a low thermal conductivity, the exterior body b suppresses the heat conduction even when heating by a microwave oven or the like is performed. Even if it has, it is not hot and can prevent burns. Furthermore, since the lid 15 is provided, it is possible to provide a storage container that is extremely useful as a take-out container such as a side dish or a lunch box.

Further, the storage container A can be easily assembled by an extremely simple process of attaching the pre-assembled subdivided container bodies a1 and a2 to the exterior body b. Therefore, it can be quickly manufactured by an automatic molding apparatus having a simple structure, and can be provided at a low cost.
Furthermore, with respect to the previously assembled storage container A by the gap 30 formed between the subdivided container bodies a1 and a2, and the bottom wall side cutout 22a and the side wall cutout 22b formed in the exterior body b, The assembled storage container A can be overlaid so as to maintain contact between the side plate 3a and the side wall portion 13 that are attached to each other. Then, if the previously assembled storage container (a storage container that becomes outside when superposed) A is pushed into a frame-like member (for example, a female mold 120 described later) and forcibly held, the assembly is then performed. When the storage container A (the storage container that becomes inside when superimposed) is similarly pushed into a frame-like member (for example, a female mold 120 described later) and superimposed on the stomach container A of the previous week, the previous storage The container A forcibly holds the assembled state of the next storage container A. Moreover, when these storage containers A are overlapped, the bulging side plate 3a exhibits a spring action, and the side plate 3a and the side wall portion 13 are more firmly attached.
The manufacturing method of the storage container A will be described in detail later with reference to the drawings.

(Other production examples)
FIG. 6 shows a perspective view of the storage container A ′ without a lid. That is, this storage container A ′ is obtained by removing the lid 15, the insertion portion 17, the notch 19, the receiving plate 21, and the side receiving plate 8 from the above-described storage container A with a lid. Since the other configuration is the same as that of the storage container A, the same reference numerals as those in FIG. 6 and FIG.

  As shown in FIG. 8, the paperboard b ″ forming the exterior body b1 of this example has a pair of side edges on the pair of long sides facing each other in the quadrangular bottom wall portion 11 via a pair of folds 12 and 12. The side wall portions 13 and 13 are provided continuously, and are not provided with the lid 15, the insertion portion 17, the notch 19, the receiving plate 21, etc. Further, the paperboard forming the subdivided container body a2 'of this example is not shown. However, the above-described paperboard a ″ is obtained by removing the side receiving plate 8.

And also in this example, like the above-mentioned embodiment example, the preassembled subdivided container bodies a1, a2 ′, a2 ′ are aligned with the bottom wall portion 11 of the exterior body “b” in the width direction so as to be linear. Arrange them in a row. At this time, the subdivided container body a1 is located at the center and the subdivided container bodies a2 ′ and a2 ′ are located on both sides thereof, and a pair of side plates bulging outward in each of the subdivided container bodies a1, a2 ′ and a2 ′. It goes without saying that 3a and 3a are arranged so as to face the side wall portions 13 and 13 of the outer package b.
Further, the side wall portions 13 and 13 are raised through the crease 12, and the pair of side surface plates 3a and 3a are attached to the side wall portions 13 and 13, thereby completing the storage container A ′ of this example. At this time, a gap 30 is formed between the side plates 3b and 3b facing each other in the divided container bodies a1 and a2 ′ adjacent to each other on the bottom wall portion 11 of the exterior body b. Further, a bottom wall side cutout 22 a and a side wall cutout 22 b formed in the bottom wall portion 11 and the side wall portions 13, 13 of the exterior body b are connected to the gap 30.
The assembling operation of the storage container A ′ in this example can also be performed automatically, quickly and continuously by the technique previously proposed by the present applicant described in Patent Document 1.
In addition, since the operation and effect of the storage container A ′ in this example is the same as that of the above-described embodiment example except that the storage container A ′ is not provided with a lid, repeated description is omitted.

(Production method)
Next, the manufacturing method of the storage container in each of the manufacturing examples described above will be described with reference to FIGS.

  FIG. 9 is a cross-sectional view of the main part of the automatic molding apparatus for manufacturing the storage container A (or A ′) described above. By this automatic molding apparatus, the subdivided container bodies a1, a2, a2 (or a1, a1, a2 ′, a2 ′) are arranged on the bottom wall portion 11 of the exterior body b so as to be connected in a straight line, and the pair of side wall portions 13, 13 in the exterior body b are bent through the folds 12, 12, Bending and pasting process of assembling the storage container A by attaching the bulging side plates 3a, 3a to the side walls 13, 13, and the storage container A being assembled first and forcibly held in this state The stacking process of stacking on the storage container A is sequentially performed.

  The automatic molding apparatus includes a male mold 101 and a female mold 102. The male mold 101 can slide up and down with a predetermined stroke by a drive mechanism (not shown), and the female mold 102 is installed above the male mold 101. Has been. The male mold 101 includes convex portions 111, 112, and 113 into which the above-described three sub-container bodies a1, a2, and a2 are loosely fitted from above, and the sub-container portions a1, a2, and a2 correspond to the convex portions 111 to 111, respectively. By covering 113 from above, each of the subdivided container bodies a1, a2, a2 is connected in a straight line in the same state as when placed on the bottom wall portion 11 of the exterior body b.

  The female mold 102 has a cylindrical shape capable of accommodating the rising male mold 101, and a molding space 103 serving as a work position for performing the bending and pasting process, and the molding space therein. A stack space 104 for performing the stacking process is provided above 103. Below the female mold 102, a setting space 105 for performing the setting process is disposed below the molding space 103, and below the setting space 105, a lowered position (indicated by a two-dot chain line in the figure). The male mold 101 located at the position of the male mold 101 shown) is arranged. That is, the setting space 105, the forming space 103, and the stack space 104 are arranged in a straight line, and the male mold 101 slides up and down in these spaces 105, 103, and 104.

  Between the setting space 105 and the molding space 103, there is a container supply device (not shown) that automatically covers the corresponding subdivided container bodies a1, a2, a2 from above on the respective convex portions 111-113 of the male mold 101. is set up. Also, at this position, a paperboard supply device (not shown) for mounting the paperboard b ′ (or paperboard b ″) on the upper surface of the male mold 101 is installed.

Then, first, the container supply device is activated, and the corresponding subdivided container bodies a1, a2, and a2 are automatically covered from above on the respective convex portions 111 to 113 of the male mold 101 in the lowered position (initial position). The subdivided container bodies a 1, a 2, and a 2 are connected in a straight line on the male mold 101 so as to be in the same state as when placed on the bottom wall portion 11 of the exterior body b.
An adhesive such as hot melt is applied in advance to the swelled side plates 3a and 3a (sides to be attached to the side wall portions 13 and 13 of the exterior body b) in the respective divided container bodies a1, a2 and a2. The hot melt is melted by heating means such as a heater built in the male mold 101.
Next, the paperboard supply device is activated, and the paperboard b ′ is mounted on the upper surface of the male mold 101, and the setting process in which the respective subdivided container bodies a1, a2, a2 are located at predetermined positions of the bottom wall portion 11 is completed.

  Next, the drive mechanism operates to raise the male mold 101 and enter the molding space 103 of the female mold 102. At this time, at the lower end opening edge 120 of the female mold 102, the pair of side wall portions 13, 13 of the paperboard b ′ is bent through the fold line 12, and the side plates 3 a, 3 a are attached to the side wall portions 13, 13. The folding and pasting process for assembling the storage container A is completed.

  Further, when the male mold 101 continues to rise and reaches the stack space 104, the storage container A that has been assembled and forcibly held by the female mold 102 is folded into the storage container A that has been folded and pasted. Are stacked so as to maintain contact between the side plate 3a and the side wall portion 13 attached to each other, and the stacking process is completed. When the stacking process is completed, the male mold 101 is lowered to the initial position and waits for the next setting process.

  In the stack space 104, the previously assembled storage container A forcibly holds the assembled state of the next assembled storage container A. Moreover, in these storage containers A, the bulged side plate 3a exhibits a spring action, and the side plate 3a and the side wall portion 13 are more firmly attached.

  In this way, the storage container A (or A ′) can be easily and rapidly manufactured automatically by repeating the setting process, the bending / sticking process, and the stacking process in order. .

  In addition, a plurality of types of paperboard for the above-described subdividing container body and exterior body are prepared in advance, and correspondingly, a plurality of types of the above-described male mold and female mold are prepared in advance, and these are appropriately selected. By making it possible to use the exchanged containers, it is possible to easily manufacture storage containers having different numbers and shapes of the divided container bodies with a single automatic molding apparatus.

  The embodiments of the present invention have been described with reference to the drawings. However, the present invention is not limited to these embodiments, and various modifications can be made within the scope of the technical idea described in the claims. Is possible.

A: Storage containers a1, a2, a2 '... subdivided container body, 1 ... bottom plate, 3a, 3a ... bulging side plate, 3b, 3b ... side plate, 4 ... Folding plate, 2, 5a, 5b, 6 ... fold, 30 ... gap b ... exterior body, 11 ... bottom wall, 13 ... side wall, 12,14 ... fold, 22a ... bottom wall side cutout, 22b ... side wall cutout 101 ... male mold, 102 ... female mold, 103 ... molding space, 104 ... stack space, 105 ... Setting space

Claims (7)

A method for manufacturing a storage container, wherein the storage container comprises:
A plurality of sub-container bodies are connected by an exterior body made of a single paperboard,
Each of the subdivided container bodies has the same size in the width direction,
The exterior body has at least a quadrangular bottom wall portion and a pair of side wall portions standing on a pair of opposite side edges in the bottom wall portion,
Each of the divided container bodies is arranged on the bottom wall portion of the exterior body so as to be aligned in a straight line with the width direction aligned,
A gap is provided between the side plates of the subdividing container body facing each other on the bottom wall portion of the exterior body,
The bottom wall portion is formed with a bottom wall side notch corresponding to the bottom surface side opening of the gap,
In the side wall portion, a side wall side notch corresponding to the side surface side opening of the gap is formed continuously to the bottom wall side notch,
A plurality of storage containers can be overlaid by the gap, the bottom wall side cutout and the side wall side cutout, and in the overlapped state, the side wall portion and the side plate in the storage container inside Is a storage container that is formed to be held by a storage container on the outside,
A setting step of arranging the plurality of subdivided container bodies in a straight line with respect to the bottom wall portion of the exterior body;
Bending and pasting step of assembling the storage container by folding the pair of side wall portions in the exterior body through the crease and pasting the pair of side wall portions to the side plate;
Stacking the storage container on the previously assembled storage container to hold the assembled state; and
Including
The operation positions for performing the setting process, the bending / sticking process, and the stacking process are arranged in a straight line, and the male process for continuously performing the setting process, the bending / sticking process, and the stacking process. A method for manufacturing a storage container, wherein a mold is slidably disposed in each of the serial spaces. Each of the subdivided container bodies is assembled into a container having an upper surface opened by folding and pasting a key point of a single paperboard,
A square bottom plate, front and rear side plates that stand up to the periphery of the bottom plate via a fold, and a substantially fan-shaped folding plate that connects the side plates adjacent to each other;
Each side plate has a shape that expands from the periphery of the bottom plate toward the top opening, and the side plate that is attached to the side wall portion is formed so as to bulge outward. The manufacturing method of the storage container of Claim 1 . The method for manufacturing a storage container according to claim 1, wherein the outer package has higher rigidity than the subdivided container . The method for manufacturing a storage container according to any one of claims 1 to 3, wherein the exterior body has a lower thermal conductivity than the subdivided container body . 5. The storage according to claim 1, wherein the exterior body includes a lid that is connected to a top edge of one of the pair of side wall portions via a crease. Container manufacturing method . The said exterior body consists of the said bottom wall part and the said side wall part, and it is formed so that it can divide | segment for every said subdivision container body by the cutting | disconnection of the upper part of the said side wall side notch in this side wall part. The manufacturing method of the storage container of any one of 1-5 . The method for producing a storage container according to any one of claims 1 to 6, wherein the storage container is used as a food container or a lunch box container .

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