HK1150819B

HK1150819B - Packaging and method of producing same

Info

Publication number: HK1150819B
Application number: HK11104737.7A
Authority: HK
Inventors: 小野木淳; 小垣美津子
Original assignee: 罗蒂株式会社
Priority date: 2008-02-18
Filing date: 2009-02-18
Publication date: 2014-04-11

Description

Package and method for manufacturing same

Technical Field

The present invention relates to a package for containing sheet-like food such as chewing gum or chocolate and a method for producing the same.

Background

Conventionally, as packaging containers for storing sheet-like foods such as chewing gum and chocolate, there are packaging containers described in japanese patent No. 3955355 and japanese patent No. 3955356.

The packaging containers described in these patent documents are those in which sheet-like foods are set upright, and steps are provided in a manner such that the rear row side is higher than the front row, and the sheets are stacked in two rows, thereby compactly storing the sheets.

According to the above configuration, since the height of the sheet-like food in the packaging container on the rear row side is higher than that of the front row, the food can be easily taken out. Further, since the sheet-like food is temporarily fixed to the inside of the packaging container, for example, when the sheet-like food in the front row is taken out, the contents in the rear row can be prevented from shaking.

The thus-taken pieces of food can be tasted by peeling off the wrapper.

Further, japanese patent No. 3955356 discloses a method for manufacturing the packaging container.

Disclosure of the invention

Technical problem to be solved by the invention

However, in the packaging containers described in the above patent documents, since the sheet-like food must be taken out one by one and then the packaging paper must be peeled off at the time of tasting, it is difficult to taste the food without making it out with one hand.

Further, according to the method for manufacturing a packaging container described in japanese patent No. 3955356, although the packaging container can be manufactured on an automatic production line, there is still a problem that it is necessary to take out pieces of a sheet-like food and peel the packaging paper of the sheet-like food at the time of tasting.

Accordingly, an object of the present invention is to provide a food package in which a sheet-like food item is compactly stored, and the sheet-like food item can be easily taken out and tasted at will even when the food item cannot be boiled out with one hand, and a method for manufacturing the same.

Technical scheme for solving technical problem

According to a first aspect of the present invention, there is provided a package for a sheet-like food such as a chewing gum or chocolate, comprising: each of a plurality of pieces of sheet-like food 1 is packaged by a packaging sheet 2 which is composed of an extraction portion 4, a fixing portion 5, and a fragile portion 3 between the extraction portion 4 and the fixing portion 5 and which can be opened by extracting the extraction portion 4 by cutting the fragile portion 3, and the plurality of pieces of packaged sheet-like food 1 are connected to the fixing portion 5 of the packaging sheet 2 by a connecting cardboard (japanese: connecting table paper) 6 to form a sheet-like food unit 1a integrally, and the sheet-like food unit 1a is fixed to the connecting cardboard 6 and is stored in a packaging material 7, 31, 41.

According to a second aspect of the present invention, there is provided a package having the following features: the packaging material 41 is made of a cardboard paper having a frame plate 10 continuously provided on the lower edge of a main plate 8 via a bottom plate 9, a lid plate 12 continuously provided on the upper edge of the main plate 8 via a connecting plate 11, a support plate 14 continuously provided on the left edge of the main plate 8 via a side plate 13, and a support plate 16 continuously provided on the right edge via a side plate 15, and the sheet-like food units 1a are fixed to the inner surface of the storage section 42 on the side of the bottom plate 9 and stored in the storage section 42 surrounded by the main plate 8, the side plates 13, 15, the support plates 14, 16, the bottom plate 9, and the frame plate 10.

According to a third aspect of the present invention, there is provided a package having the following features: tongue-shaped pieces 43 are continuously provided at both ends of the bottom plate 9, and the tongue-shaped pieces 43 are sandwiched between the side plates 13 and 15 forming the storage part 42 and the sheet-shaped food units 1 a.

According to a fourth aspect of the present invention, there is provided a package having the following features: the plurality of sheet-like food units 1a are stored in a stacked state.

According to a fifth aspect of the present invention, there is provided a package having the following features: the packaging device 7 is formed by assembling a cardboard sheet in which a frame plate 10 is continuously provided on the lower edge of a main plate 8 via a bottom plate 9, a lid plate 12 is continuously provided on the upper edge of the main plate 8 via a connecting plate 11, a support plate 14 is continuously provided on the left edge of the main plate 8 via a side plate 13, a support plate 16 is continuously provided on the right edge via a side plate 15, a support plate 18 is continuously provided on the left edge of the frame plate 10 via a side plate 17, and a support plate 20 is continuously provided on the right edge via a side plate 19, whereby a first storage section 23 is formed by surrounding the main plate 8, the side plates 13, 15, and the support plates 14, 16, and a second storage section 24 is formed by surrounding the frame plate 10, the side plates 17, 19, and the support plates 18, 20, and then the sheet-like food units 1a are fixed to the support plates 14, 16, 18, 20, respectively, on the connecting cardboard sheet 6, and stored in the storage sections 23, 24, respectively.

According to a sixth aspect of the present invention, there is provided a package having the following features: the main plate 8 and the frame plate 10 are raised with respect to the bottom plate 9 in a state where the sheet-like food units 1a are stored in the first storage section 23 and the second storage section 24, respectively, and the two storage sections 23 and 24 are stacked, whereby the sheet-like food units 1 are stored in the two storage sections 23 and 24 in a state where they are arranged in two rows in the front and rear direction.

According to a seventh aspect of the present invention, there is provided a package having the following features: a frame plate 10 is continuously provided on the lower edge of a main plate 8 via a bottom plate 9, a cover plate 12 is continuously provided on the upper edge of the main plate 8 via a connecting plate 11, a support plate 14a is continuously provided on the left edge of the main plate 8 via a side plate 13, a support plate 16a is continuously provided on the right edge via a side plate 15, a support plate 18a is continuously provided on the left edge of the frame plate 10 via a side plate 17, and a support plate 20a is continuously provided on the right edge via a side plate 19, and then a hard paperboard is assembled so that a first housing part 23 is formed by surrounding the main plate 8, the side plates 13, 15, and the support plates 14a, 16a, and a second housing part 24 is formed by surrounding the frame plate 10, the side plates 17, 19, and the support plates 18a, 20a, and then fixing pieces 33 are continuously provided on the free end edges of the support plates 18a, 20a at positions overlapping with the connecting hard paperboard 6 of the sheet-shaped food units 1a housed in the housing part 24 via weak parts, the packaging material 31 is formed by fixing the sheet-like food units 1a to the support plates 14a, 16a, 18a, and 20a on the connecting cardboard 6, and storing the sheet-like food units in the storage sections 23 and 24.

According to an eighth aspect of the present invention, there is provided a package having the following features: the main plate 8 and the frame plate 10 are raised with respect to the bottom plate 9 in a state where the sheet-like food units 1a are respectively housed in the first housing portion 23 and the second housing portion 24, and the housing portions 23, 24 are overlapped with each other, and the connecting cardboard sheet 6 of the sheet-like food units 1a housed in the first housing portion 23 and the fixing piece 33 of the second housing portion 24 opposed to the connecting cardboard sheet 6 are fixed to each other, whereby the sheet-like food units 1 are housed in the housing portions 23, 24 in a state of being arranged in two rows in the front and rear direction.

According to a ninth aspect of the present invention, there is provided a method for manufacturing a package (C), comprising:

(i) a packaging step of packaging each of the plurality of pieces of sheet-like food 1 with a packaging sheet 2 which is composed of a dispensing portion 4, a fixing portion 5, and a fragile portion 3 between the dispensing portion 4 and the fixing portion 5, and which can be opened by cutting the fragile portion 3 to draw out the dispensing portion 4;

(ii) an arrangement step of arranging the plurality of packed sheet-like food items 1 in the width direction thereof;

(iii) a unit forming step of forming a sheet-like food unit 1a by fixing a connecting cardboard 6 on at least one surface of the fixing portion 5 of each of the plurality of packaging sheets 2 of the aligned sheet-like food 1;

(iv) a cardboard placing step of placing the sheet-like food units 1a on the main board 8 of cardboard of a packaging device 41 such that the respective connecting cardboard sheets 6 are positioned on the side of the bottom board 9, wherein the packaging device 41 is formed by continuously providing a frame board 10 on the lower edge of the main board 8 via the bottom board 9, continuously providing a lid board 12 on the upper edge of the main board 8 via a connecting board 11, continuously providing a support board 14 on the left edge of the main board 8 via a side board 13, and continuously providing a support board 16 on the right edge thereof via a side board 15;

(v) a housing step of folding the side plates 13 and 15, the support plates 14 and 16, the bottom plate 9, and the frame plate 10 with respect to the main plate 8 so as to surround the sheet-like food unit 1a, and fixing the frame plate 10 to the support plates 14 and 16;

(vi) a fixing step of fixing the sheet-like food unit 1a to at least one of the main plate 8, the side plates 13 and 15, the support plates 14 and 16, the bottom plate 9, and the frame plate 10 on the connecting cardboard sheet 6; and

(vii) and a stacking step of folding the connecting portion 11 and the cover plate 12 with respect to the main plate 8 so that the frame plate 10 and the cover plate 12 are stacked.

According to a tenth aspect of the present invention, there is provided a method for manufacturing a package (C), comprising: placing a plurality of the sheet-like food units 1a on the main plate 8 of the packaging device 41 in a stacked manner such that the respective connecting cardboard sheets 6 are positioned on the bottom plate 9 side; and fixing each of the plurality of food sheet units 1a to at least one of the main plate 8, the side plates 13, 15, the support plates 14, 16, the bottom plate 9, the frame plate, and the other food sheet units 1 a.

According to an eleventh aspect of the present invention, there is provided a method for manufacturing a package (a), comprising:

(iii) a unit forming step of forming a sheet-like food unit 1a by fixing a connecting cardboard 6 on the upper surface of the fixing portion 5 of each packaging sheet 2 of the plurality of sheet-like food 1;

(iv) a cardboard placing step of placing the first sheet-like food unit 1a on the frame plate 10 of cardboard of a packaging device 7 in a direction in which the respective connecting cardboard 6 is positioned on the bottom plate 9 side, and placing the second sheet-like food unit 1a on the main plate 8 of cardboard of the packaging device 7 in a direction in which the connecting cardboard 6 is positioned on the bottom plate 9 side, wherein, the packaging equipment 7 is formed by continuously arranging a frame plate 10 on the lower edge of a main plate 8 through a bottom plate 9, continuously arranging a cover plate 12 on the upper edge of the main plate 8 through a connecting plate 11, continuously arranging a support plate 14 on the left edge of the main plate 8 through a side plate 13, continuously arranging a support plate 16 on the right edge through a side plate 15, continuously arranging a support plate 18 on the left edge of the frame plate 10 through a side plate 17, and continuously arranging a support plate 20 on the right edge through a side plate 19;

(v) a support plate fixing step of bending the support plates 14, 16, 18, and 20 and fixing the inner surfaces of the support plates 14, 16, 18, and 20 to the upper surfaces of the connection hard sheet 6 of the sheet-like food unit 1a on the main plate 8 and the frame plate 10, respectively; and

(vi) and a stacking step of stacking a first storage section 23 surrounded by the main plate 8, the side plates 13 and 15, and the support plates 14 and 16, and a second storage section 24 surrounded by the frame plate 10, the side plates 17 and 19, and the support plates 18 and 20.

According to a twelfth aspect of the present invention, there is provided a method for manufacturing a package (B), comprising:

(iv) placing the first sheet-like food unit 1a on the frame plate 10 of the cardboard of the packaging device 31 in such a direction that the respective connecting cardboard sheets 6 are positioned on the bottom plate 9 side, placing the second sheet-like food unit 1a on the main plate 8 of the cardboard of the packaging device 31 in such a direction that the connecting cardboard sheets 6 are positioned on the bottom plate 9 side, wherein the frame plate 10 is continuously provided on the lower edge of the main plate 8 via the bottom plate 9, the lid plate 12 is continuously provided on the upper edge of the main plate 8 via the connecting plate 11, the support plate 14a is continuously provided on the left edge of the main plate 8 via the side plate 13, the support plate 16a is continuously provided on the right edge via the side plate 15, the support plate 18a is continuously provided on the left edge of the frame plate 10 via the side plate 17, the support plate 20a is continuously provided on the right edge via the side plate 19, and the support plates 18a, b, 20a, the free end edges of which are formed with the packaging material 31 by continuously providing fastening pieces 33 through the fragile portions 32;

(v) a support plate fixing step of bending the support plates 14a, 16a, 18a, and 20a and fixing the inner surfaces of the support plates 14, 16, 18, and 20 to the upper surfaces of the hard sheet 6 for connection of the sheet-like food unit 1a on the main plate 8 and the frame plate 10, respectively; and

(vi) and a stacking step of stacking a first storage section 23 surrounded by the main plate 8, the side plates 13 and 15, and the support plates 14a and 16a on a second storage section 24 surrounded by the frame plate 10, the side plates 17 and 19, and the support plates 18a and 20a, and bonding the fixing pieces 33 on the second storage section 24 side to the hard sheet paper 6 for connection of the sheet-like food units 1a stored in the first storage section 23 so as to face the fixing pieces 33.

Effects of the invention

According to the package of the present invention, the sheet-like food can be compactly stored, and the sheet-like food can be easily taken out and tasted at will even when the sheet-like food cannot be boiled out with one hand.

Further, according to the method for manufacturing a package of the present invention, the package can be manufactured easily and efficiently.

Drawings

Fig. 1 is a perspective view showing a manufacturing process of a package according to an embodiment of the present invention.

Fig. 2 is a plan view of the cardboard sheet and the connecting cardboard sheet of the packaging material of the package.

Fig. 3 is a plan view of the cardboard sheet and the connecting cardboard sheet of the packaging material of the package according to the embodiment of the present invention.

Fig. 4A is a partial plan view showing a state where a sheet-like food packed with a packing sheet is supported by a connecting cardboard sheet, placed on the cardboard sheet, and a support plate of a storage section is bent, and fig. 4B is a partial plan view showing a state where two storage sections of a once-assembled packing material are overlapped and opened.

Fig. 5 is a perspective view showing a manufacturing process of the package according to the embodiment of the present invention.

Fig. 6 is a plan view of the cardboard sheet of the packaging material of the package.

Fig. 7 is an enlarged perspective view showing an example of a packaging form of the sheet-like food of the present invention.

Fig. 8 is a perspective view showing a state in which a sheet-like food is taken out from the package of the present invention.

(symbol description)

A. B packaging body

1 sheet-like food

1a sheet-like food item Unit

2 packaging sheet

3 frangible portion

4 extraction part

5 fixed part

6 hard board paper for connection

7 packaging equipment

8 mainboard

9 baseboard

10 frame plate

11 connecting plate

12 cover plate

13 side plate

14 support plate

14a support plate

14b gap

15 side plate

16 support plate

16a support plate

16b notch

17 side plate

18 support plate

18a support plate

18b gap

19 side plate

20 support plate

20a support plate

20b gap

21 engaging piece

22 engaging hole

23 receiving part

24 receiving part

25 cardboard box (Japanese table マガジン)

31 packaging equipment

32 frangible portion

33 fastening piece

41 packaging equipment

42 receiving part

43 tongue-shaped piece

44 engaging part

45 engaging hole

50 seam

Detailed Description

One embodiment of the present invention is a package of a sheet-like food such as chewing gum or chocolate, in which each of a plurality of sheets of the sheet-like food 1 is packaged with a packaging sheet 2 which is composed of a drawing portion 4, a fixing portion 5, and a fragile portion 3 between the drawing portion 4 and the fixing portion 5 and which can be opened by cutting the fragile portion 3 and drawing out the drawing portion 4, and the plurality of packaged sheets of the sheet-like food 1 are connected to the fixing portion 5 of the packaging sheet 2 with a connecting cardboard 6 to form an integrated sheet-like food unit 1a which is fixedly connected to the connecting cardboard 6 and stored in a packaging material 7, 31, 41.

Another embodiment of the present invention is a method for manufacturing a package (C), including:

(i) a packaging step of packaging each of the plurality of pieces of sheet-like food 1 with a packaging sheet 2 which is composed of a dispensing portion 4, a fixing portion 5, and a fragile portion 3 between the dispensing portion 4 and the fixing portion 5 and which can be opened by cutting the fragile portion 3 and dispensing the dispensing portion 4;

(iv) a cardboard placing step of placing the sheet-like food units 1a on the main board 8 of cardboard of the packaging device 41 such that the respective connecting cardboard sheets 6 are positioned on the side of the bottom board 9, wherein the packaging device 41 is provided with a frame board 10 continuously provided on the lower edge of the main board 8 via the bottom board 9, a lid board 12 continuously provided on the upper edge of the main board 8 via a connecting board 11, a support board 14 continuously provided on the left edge of the main board 8 via a side board 13, and a support board 16 continuously provided on the right edge via a side board 15;

(v) a housing step of folding the side plates 13 and 15, the support plates 14 and 16, the bottom plate 9, and the frame plate 10 of the main plate 8 so as to surround the sheet-like food unit 1a, and fixing the frame plate 10 to the support plates 14 and 16;

Example 1

The package C of example 1 of the present invention is described below with reference to fig. 5 to 8.

In the figure, the reference numeral 1 denotes a sheet-like food such as chewing gum or chocolate, and the reference numeral 2 denotes a packaging sheet in which one or two or more kinds of paper, plastic such as polypropylene, metal such as aluminum, and the like, which are used for packaging the sheet-like food 1, are laminated, and for example, as shown in fig. 7, one side of the packaging sheet 2 is folded so as to cover a half of one side in the width direction of the sheet-like food 1, both end portions in the length direction of the packaging sheet 2 are folded, and finally, the other side of the packaging sheet 2 is folded and packaged. In fig. 7, when one side in the width direction is folded back, the corner of the fold of the packaging sheet 2 formed on the outer side of both ends in the longitudinal direction of the sheet-like food 1 is folded back obliquely inward in a manner invisible from the outside.

The packaging step is not limited to the above-described step, and for example, the step of wrapping the outer periphery of the sheet-like food 1 in the transverse direction (width direction) and folding and packaging both longitudinal end portions of the packaging sheet 2 may be performed.

The packaging with the packaging sheet 2 of the present invention includes, for example, enclosing the sheet-like food 1 in a thin plastic container.

An eyelet line (japanese ミシン mesh) as a weak portion 3 is formed in a straight line in the width direction of the sheet-like food 1 at, for example, a position slightly closer to one end than the center in the longitudinal direction of the packaging sheet 2, and the fixing portion 5 located on the one end side and the extraction portion 4 located on the other end side can be separated by cutting the packaging sheet 2 along the eyelet line.

The shape of the fragile portion 3 is not limited to the perforation line as long as it can be cut when a tensile force is applied between both end portions of the packaging sheet 2, and may be a groove or a hollow space depending on the material, thickness, cross-sectional shape, and the like of the packaging sheet 2. Therefore, for example, in the case where the sheet-like food 1 is enclosed in a plastic container as described above, the fragile portion 3 can be formed by providing a groove, a hollow space, or the like in the container.

In the figure, reference numeral 6 denotes a rectangular hard cardboard for connecting sheet-like food units 1a, which are formed by arranging six pieces of food 1 close to each other in the width direction and continuously fixing the six pieces of food to the surface of the fixing portion 5 of each sheet-like sheet 2, thereby integrally connecting the pieces of food.

In the drawing, reference numeral 41 denotes a packaging material in which a frame plate 10 is continuously provided on the lower edge of a main plate 8 via a bottom plate 9, and a cover plate 12 is continuously provided on the upper edge of the main plate 8 via a connecting plate 11. Tongue-shaped pieces 43 are continuously provided on both ends of the bottom plate 9, respectively.

A support plate 14 is continuously provided on the left edge of the main plate 8 via a side plate 13, and a support plate 16 is continuously provided on the right edge via a side plate 15.

In the figure, reference numeral 44 denotes an engaging portion formed by extending a central portion of a free end edge of the lid plate 12, and reference numeral 45 denotes an engaging hole formed by forming a notch in the frame plate 10, and both are configured to be engageable with each other.

The packaging device 41 is configured such that the connecting cardboard 6 is positioned on the bottom plate 9 side to house the sheet-like food unit 1a in a housing portion 42 surrounded by the main plate 8, the side plates 13, 15, the support plates 14, 16, the bottom plate 9, and the frame plate 10. The sheet-like food units 1a stored in the storage section 42 are fixed to the inner surface of the storage section 42 on the bottom plate 9 side, specifically, the inner surface of at least one of the main plate 8, the side plates 13 and 15, the support plates 14 and 16, the bottom plate 9, and the frame plate 10 on the bottom plate 9 side, at one point or two or more points on the connecting cardboard 6 by a hot melt adhesive or the like.

In addition, in the embodiment, the number of the sheet-like food items 1 constituting the sheet-like food item unit 1a is six, but this number may be changed as appropriate, and the sizes of the connecting cardboard 6 and the packaging material 41 may be changed as appropriate in accordance with the number of the sheet-like food items 1 of the sheet-like food item unit 1 a.

Further, in the present embodiment, the number of the sheet food units 1a is two, but this number may be changed as appropriate, and the sizes (widths) of the side plates 13, 15, the bottom plate 9, and the linking plate 11 may be changed as appropriate in accordance with the number of the sheet food units 1 a. In view of the volume of the food and the portability as a package, the number of the sheet-like food units 1a is preferably about two, but a thin portable package that accommodates only one may be provided.

In the package C of the present embodiment, two sheet-like food units 1a are housed in a housing portion 42 in a state of being lined up in two front and rear rows, wherein the housing portion 42 is formed by standing up the side plates 13 and 15 and the bottom plate 9 with respect to the main plate 8 in a state where the connecting cardboard sheet 6 of the sheet-like food unit 1a is positioned on the bottom plate 9 side and the two sheet-like food units 1a are superposed and placed on the main plate 8, and then bending the support plates 14 and 16 and the frame plate 10 with respect to the side plates 13 and 15 and the bottom plate 9, respectively, and fixing them with an adhesive or the like.

Then, the cover 12 is folded in this state, and the engaging portion 44 of the cover 12 is engaged with the engaging hole 45 to close the cover.

Since the package C has a compact thin plate shape in which the sheet-like food items 1 are stacked in two rows and stored, the cost of the packaging equipment can be reduced.

The above-mentioned parts can be fixed by adhesion or welding with an adhesive or a bonding material such as a tape.

When the sheet-like food 1 is to be tasted, the cover 12 is opened by disengaging the engaging portion 44 from the engaging hole 45, and the upper portion of the packaging sheet 2 packaging the sheet-like food 1 is gripped and pulled out, whereby the packaging sheet 2 is cut along the fragile portion 3 and the pull-out portion 4 is pulled out as shown in fig. 8.

Thus, the portion of the sheet-like food 1 located in the fixing portion 5 of the packaging sheet 2 is exposed, and therefore, the sheet-like food can be taken out easily and tasted at will by pinching the portion with a finger or by gripping the portion directly with a mouth. Therefore, even if the taster cannot leave the food with one hand, the food can be taken out and tasted at will by directly gripping the food with the mouth.

As described above, the package C of the present embodiment is not only in a compact sheet shape which can be easily carried in a closed state in a pocket or a bag, but also in a state in which each sheet-like food 1 is fixed to the packaging material 41 by the fixing portion 5 of the packaging sheet 2 of the sheet-like food 1 with the connecting cardboard 6, and the lid is closed by the lid plate 12, so that there is no trouble that the food is scattered in the pocket or the bag at the time of carrying.

In addition, the sheet-like food 1 can be taken out very easily and quickly by cutting the packaging sheet 2 along the fragile portion 3 to expose a part of the food.

Next, an example of a method for manufacturing the package C on a manufacturing line will be described in order of steps.

(Individual packaging Process)

Each of the plurality of sheet-like food items 1 is packaged with a packaging sheet 2 (step (a) of fig. 5).

(alignment procedure)

Six individually packaged sheet-like food products 1 are arranged in proximity to each other in the width direction of the sheet-like food product 1 (step (b) in fig. 5).

(Unit formation Process)

One rectangular piece of the hard cardboard 6 for connection is continuously brought into contact with each of the six pieces of the sheet-like food 1 in a state of being bent along the center line in the longitudinal direction of the hard cardboard 6 on the upper surface and the lower surface of the fixing portion 5 of each of the six pieces of the sheet-like food 1 arranged adjacently, and is fixed by a hot melt adhesive or the like, thereby forming a sheet-like food unit 1a in which approximately 1/2 length portions on the fixing portion 5 side in the longitudinal direction of each of the packaging sheets 2 are covered on both sides by the hard cardboard 6 for connection (step (c) of fig. 5). Such fixing may be performed on both the upper surface and the lower surface of the fixing portion 5, or may be performed on either surface, depending on the required fixing strength and the like. The connecting cardboard 6 may be paper, plastic film, metal foil, or a composite sheet of two or more of these. For example, aluminum tape (band) paper obtained by laminating aluminum foil and paper is preferable as follows: since the aluminum foil has high shape retention due to the rigidity thereof, the subsequent process can be easily performed, and since the aluminum has high thermal conductivity, the heat generated by the heat source for bonding (Japanese: ヒ - タ I) is easily transmitted to the hot melt adhesive. In the illustrated example, both ends in the width direction of the sheet-like food product of the hard cardboard 6 for connection continuously fixed to both surfaces of the fixing portion 5 of each packaging sheet 2 extend outward from both ends in the width direction of the six sheet-like food products 1 to be connected. This is because the extended portion is folded inward, and the wrapping sheets 2 can be more firmly held by the connecting cardboard 6, and the sheet-like food units 1a can be easily handled in the subsequent stacking step of the sheet-like food units 1a and the like. Therefore, when the reinforcement is not required by using, for example, thick paper or the like as the hard sheet 6 for connection, the extension portion may not be formed.

(transporting step)

The two sheet-like food units 1a are stacked in two layers in the same direction with the extended portions of the two sheet-like food units 1a folded inward, while the sheet-like food units 1a are conveyed and rotated 180 ° in the horizontal direction (reversed) (step (d) in fig. 5). In this case, the cardboard sheets 6 for connecting the two sheet-like food units may not be fixed to each other. The reversing operation is performed so that the joint 50 of the packaging sheet 2 formed when the sheet-like food item 1 is packaged with the packaging sheet 2 does not appear on the front surface in the state where the sheet-like food item unit 1a is stored in the storage section 42, and may be omitted as necessary, from the viewpoint of maintaining the appearance.

(hard sheet paper storage step)

The sheet-like food units 1a stacked in two are placed on the main board 8 of the cardboard of the packaging device 41 in such a direction that the respective connecting cardboard sheets 6 are positioned on the bottom board 9 side, and the lower sheet-like food unit 1a is fixed to the main board 8 (step (e) of fig. 5).

(fixation step)

The bottom plate 9 is bent at the boundary line with the main plate 8, the tongue-shaped pieces 43 are bent with respect to the bottom plate 9, the side plates 13 and 15 are bent at the boundary line with the main plate 8 so as to cover the tongue-shaped pieces 43, the support plates 14 and 16 are bent at the boundary lines with the side plates 13 and 15, and the inner surfaces of the plates are fixed to the upper surface of the hard sheet 6 for connection of the plate-shaped food unit 1a placed above the main plate 8 by an adhesive or the like (step (f) of fig. 5). The tongue-shaped pieces 43 are provided to prevent gaps from being generated between the side plates 13 and 15 and the bottom plate 9 when the housing portion 42 is formed, and are preferably provided from the viewpoints of appearance, hygiene, and maintenance of mechanical strength of the housing portion 42, but may be omitted. In addition, regarding the shape, size, and the like of each support plate 14, 16, approximately half of the portion of the longitudinal direction bottom plate 9 side of each support plate that overlaps the connecting cardboard 6 of the upper sheet-like food unit 1a needs to have a width that can secure sufficient fixation to the connecting cardboard 6 and the frame plate 10. However, since the remaining portion of each support plate 14, 16, that is, approximately half of the length on the side of the web 11, is not used for fixing, the width is reduced so that no obstacle occurs when taking out each sheet-like food 1 from the completed package, particularly taking out each sheet-like food 1 located at both ends of the sheet-like food unit 1 a. Although this portion may not be provided, it is preferably provided from the viewpoint of appearance, hygiene, maintenance of mechanical strength of the package, and the like.

(step of superposition)

The frame plate 10 is bent with respect to the bottom plate 9, and both end portions of the frame plate 10 are fixed to the support plates 14 and 16 on the hard sheet 6 for connection of the upper sheet-like food unit 1a, respectively, by an adhesive or the like (step (g) of fig. 5). When the sheet-like food 1 is fixed as described above, the frame plate 10 is provided to have a length along the longitudinal direction of the sheet-like food such that the appearance of the connecting cardboard 6 is not visible from the outside, and the sheet-like food 1 is not obstructed when taken out.

(folding step)

The cover plate 12 is folded onto the frame plate 10 by bending the connecting plate 11 with respect to the main plate 8 and bending the cover plate 12 with respect to the connecting plate 11 (step (h) of fig. 5).

According to the above-described method for producing the package C, such steps are simple, and therefore, the process can be performed at low cost, and the sheet-like food 1 can be reliably stored in the packaging material 41 without being disassembled.

Example 2

A package a according to example 2 of the present invention will be described with reference to fig. 1 and 2. In the drawings, the same components as those in embodiment 1 are denoted by the same reference numerals as those in fig. 5 to 8.

In the figure, reference numeral 1 represents a sheet-like food product similar to example 1, and reference numeral 2 represents a packaging sheet similar to example 1. The same perforation line as in example 1 as the fragile portion 3 was formed in the packaging sheet 2.

In the drawing, reference numeral 7 denotes a packaging material in which a frame plate 10 is continuously provided on the lower edge of a main plate 8 via a bottom plate 9, and a cover plate 12 is continuously provided on the upper edge of the main plate 8 via a connecting plate 11.

A support plate 18 is continuously provided on the left edge of the frame plate 10 via a side plate 17, and a support plate 20 is continuously provided on the right edge via a side plate 19.

In the figure, reference numeral 21 denotes an engaging piece provided to protrude from a free end edge of the cover plate 12, and reference numeral 22 denotes an engaging hole formed by forming a notch between the bottom plate 9 and the frame plate 10, and both are configured to be engageable with each other.

The packaging device 7 is configured to house the first sheet-like food unit 1a in a first housing portion 23 surrounded by the main plate 8, the side plates 13, 15, and the support plates 14, 16, and to house the second sheet-like food unit 1a in a second housing portion 24 surrounded by the frame plate 10, the side plates 17, 19, and the support plates 18, 20. The sheet-like food units 1a stored in the storage sections 23 and 24 are fixed to the inner surfaces of the bent support plates 14, 16, 18, and 20 on the hard sheet 6 for connecting the sheet-like food units 1 a.

In addition, in the embodiment, the number of the sheet-like food items 1 constituting the sheet-like food item unit 1a is six, but this number may be changed as appropriate, and the sizes of the connecting cardboard 6 and the packaging material 7 may be changed as appropriate in accordance with the number of the sheet-like food items 1 of the sheet-like food item unit 1 a.

In the package a of the present embodiment, the main plate 8 and the frame plate 10 are raised with respect to the bottom plate 9 in a state where the sheet-like food units 1a are stored in the first storage section 23 and the second storage section 24, respectively, and the two storage sections 23 and 24 are folded and stacked, and the outer surfaces of the support plates 14 and 16 on the first storage section 23 side and the support plates 18 and 20 on the second storage section 24 side which face each other are fixed to each other by an adhesive or the like, whereby the sheet-like food units 1 are stored in the storage sections 23 and 24 which are already combined in a state of being arranged in two front and rear rows.

In this embodiment, the support plates 14 and 16 and the support plates 18 and 20 may not be bonded to each other.

Then, the cover plate 12 is folded in this state, and the engaging piece 21 of the cover plate 12 is engaged with the engaging hole 22 to close the cover plate.

Since the package a has a compact thin plate shape in which the sheet-like food items 1 are stacked in two rows and stored, the cost of packaging equipment can be reduced.

The above-mentioned parts can be fixed by adhesion with an adhesive or a bonding material such as a tape, or by mash welding.

When the sheet-like food 1 is to be tasted, as described in example 1, the cover plate 12 is opened by disengaging the engaging piece 21 from the engaging hole 22, and the upper portion of the packaging sheet 2 packaging each sheet-like food 1 is gripped and pulled out, whereby the packaging sheet 2 is cut along the fragile portion 3, and the pull-out portion 4 is pulled out.

Thus, the sheet-like food 1 is exposed at the top, and can be easily taken out and tasted at will by being pinched with a finger or being directly gripped with a mouth. Therefore, even if the taster cannot leave the food with one hand, the food can be taken out and tasted at will by directly gripping the food with the mouth.

As described above, the package a of the present embodiment is not only in a compact sheet shape which can be easily carried in a closed state in a pocket or a bag, but also in a state in which each sheet-like food 1 is fixed to the packaging material 7 by the connecting cardboard 6 and the lid is closed by the lid plate 12, and therefore, there is no trouble of being scattered in a pocket or a bag during carrying.

In addition, the sheet-like food 1 can be taken out very easily and quickly by cutting the packaging sheet 2 along the fragile portion 3 to expose the upper portion of the food easily.

Next, an example of a method for manufacturing the package a on a manufacturing line in order of steps will be described.

(Individual packaging Process)

Each of the plurality of sheet-like food items 1 is packaged with a packaging sheet 2 (step (a) in fig. 1).

(alignment procedure)

Six individually packaged sheet-like food products 1 are arranged in proximity to each other in the width direction of the sheet-like food product 1 (step (b) in fig. 1).

(Unit formation Process)

The sheet-like food units 1a are formed by continuously placing the connecting cardboard 6 on the upper surfaces of the fixing portions 5 of the packaging sheets 2 of the six closely arranged sheet-like food items 1 and then fixing them with an adhesive or the like (step (c) in fig. 1). In the figure, reference numeral 25 denotes a cardboard box for providing the connecting cardboard 6.

(transporting step)

The pair of sheet-like food units 1a are conveyed in parallel after being arranged in two rows, and one of them is rotated by 180 ° in the horizontal direction to face the direction opposite to the other sheet-like food unit 1a, thereby changing the direction (step (d) in fig. 1).

(hard sheet paper setting step 1)

The sheet-like food units 1a in one row conveyed in the two-row state are placed on the frame plate 10 of the cardboard of the packaging material 7 to be conveyed separately in such a direction that the connecting cardboard 6 is positioned on the bottom plate 9 side. The side plates 13, 15, 17, and 19 of the sheets are raised together with the support plates 14, 16, 18, and 20 at the boundary lines between the sheets and the main plate 8 and the frame plate 10 (step (e) in fig. 1).

(hard sheet paper setting step 2)

Next, the sheet-like food units 1a conveyed as another row are placed on the cardboard main plate 8 of the packaging material 7 in such a direction that the connecting cardboard 6 of the sheet-like food units 1a is positioned on the bottom plate 9 side.

(supporting plate fixing step)

The support plates 14, 16, 18, and 20 are bent at the boundary lines with the side plates 13, 15, 17, and 19 of the support plates, and the inner surfaces of the support plates are fixed to the upper surfaces of the hard sheet 6 for connecting the sheet-like food units 1a placed on the main plate 8 and the frame plate 10 by an adhesive or the like (step (f) in fig. 1).

(step of superposition)

The housing portions 24 are folded and overlapped on the housing portions 23, and the support plates 18 and 14 and the support plates 20 and 16 facing each other are fixed to each other with an adhesive or the like as necessary (step (g) of fig. 1).

(folding step)

The cover plate 12 is folded onto the frame plate 10 by bending the connecting plate 11 with respect to the main plate 8 and bending the cover plate 12 with respect to the connecting plate 11 (step (h) of fig. 1).

According to the above-described method for producing the package a, such steps are simple, and therefore, the process can be performed at low cost, and the sheet-like food 1 can be reliably stored in the packaging material 7 without being disassembled.

Example 3

A package B of the present embodiment, which is different from the package a of example 2 in the form of a packaging material, will be described with reference to fig. 3, 4A and 4B.

Since the packaging material 31 is different from the packaging material 7 of example 2 mainly in the shape of the support plate, the same reference numerals as those in fig. 1 and 2 are given to the same parts in the drawings as those of the packaging material 7 of example 2.

Notches 14b, 16b, 18b, and 20b are formed in the support plates 14a, 16a, 18a, and 20a of the cardboard of the packaging material 31, respectively, on the upper side of the support plates. Further, a fastening piece 33 is provided continuously through the weakened portion 32 at a position overlapping the hard sheet 6 for connection of the sheet-like food unit 1a housed in the second housing portion 24 at each of the free end edges of the support plates 18a, 20 a.

In the production of the packaging machine 31, two sheet-like food units 1a are stored in the storage sections 23 and 24, respectively, in the same production process as that of the packaging machine 7 of example 2.

The manufacturing process of the package a of example 2 was different from the following steps: in the overlapping step, when the housing section 23 and the housing section 24 are folded and overlapped, the upper surfaces of the fixing pieces 33 are fixed to the hard sheet 6 for connecting the sheet-like food units 1a housed in the housing section 23, without fixing the support plates 18a and 20a and the support plates 14a and 16a facing the support plates 18a and 20 a.

After going through the same folding step as the manufacturing step of example 1, the sheet-like food 1 is stacked in two rows in the package B and stored in the two storage portions 23 and 24.

The advantages of the present package B compared with the package a of example 2 are as follows.

That is, in the present package B, since the overlapped state of the two storage portions 23 and 24 is maintained by adhering the fixing piece 33 to the connecting cardboard 6 on the first storage portion 23 side, when the storage portion 23 and the storage portion 24 overlapped with each other are once fixed and opened again, the fixing piece 33 is cut at the fragile portion 32 and remains in a state of being fixed to the connecting cardboard 6 on the first storage portion 23 side. Therefore, no trace of peeling off the adhesive or the like is left on the opposing surfaces of the two housing portions 23, 24 (fig. 4B). Therefore, when the two overlapped housing portions 23, 24 are opened to take out the sheet-like food 1, the cleanness and freshness can be maintained without spoiling the appearance of the packaging material 31.

This application claims priority from the japanese patent application No. 2008-036714, filed on 18/2/2008, and the contents of which are incorporated herein by reference.

Claims

1. A package for a sheet-like food, comprising: each of a plurality of pieces of sheet-like food (1) is packaged by a packaging sheet (2) which is composed of an extraction portion (4), a fixing portion (5), and a fragile portion (3) between the extraction portion (4) and the fixing portion (5) and can be opened by cutting the fragile portion (3) and extracting the extraction portion (4), a plurality of pieces of packaged sheet-like food (1) are arranged in proximity in the width direction thereof, the fixing portions (5) of the packaging sheets (2) are continuously covered with a connecting cardboard paper (6) to connect the sheet-like food units (1a) into a whole, and the sheet-like food units (1a) are fixed to packaging devices (7, 31, 41) by the connecting cardboard paper (6) and stored.

2. The packaging body according to claim 1, wherein the packaging material (41) is made of a cardboard having a frame plate (10) continuously provided at a lower edge of a main plate (8) via a bottom plate (9), a lid plate (12) continuously provided at an upper edge of the main plate (8) via a connecting plate (11), a first support plate (14) continuously provided at a left edge of the main plate (8) via a first side plate (13), and a second support plate (16) continuously provided at a right edge of the main plate (8) via a second side plate (15), the sheet-like food unit (1a) is fixed to the inner surface of the storage section (42) on the bottom plate (9) side by the connecting cardboard (6) and is stored in the storage section (42) surrounded by the main plate (8), the first side plate (13), the second side plate (15), the first support plate (14), the second support plate (16), the bottom plate (9), and the frame plate (10).

3. The package according to claim 2, wherein tongue-shaped pieces (43) are continuously provided at both ends of the bottom plate (9), respectively, and the tongue-shaped pieces (43) are sandwiched between the first side plate (13) and the second side plate (15) forming the receiving portion (42), respectively, and the sheet-shaped food unit (1 a).

4. The packaging body according to any one of claims 1 to 3, wherein a plurality of sheet-like food units (1a) are housed in an overlapped state.

5. The packaging container according to claim 1, wherein the packaging material (7) is assembled by continuously providing a frame plate (10) on a lower edge of a main plate (8) via a bottom plate (9), continuously providing a cover plate (12) on an upper edge of the main plate (8) via a connecting plate (11), continuously providing a first support plate (14) on a left edge of the main plate (8) via a first side plate (13), continuously providing a second support plate (16) on a right edge of the main plate (8) via a second side plate (15), continuously providing a third support plate (18) on a left edge of the frame plate (10) via a third side plate (17), and continuously providing a fourth support plate (20) on a right edge of the frame plate (10) via a fourth side plate (19), and using a cardboard paper, the main plate (8), the first side plate (13), the second side plate (15), the first support plate (14), and the fourth support plate (20), A first receiving section (23) is formed by surrounding the second support plate (16), and a second receiving section (24) is formed by surrounding the frame plate (10), the third side plate (17), the fourth side plate (19), the third support plate (18), and the fourth support plate (20), and then the sheet-like food unit (1a) is fixed to the first support plate (14), the second support plate (16), the third support plate (18), and the fourth support plate (20) with the connecting cardboard (6), respectively, so that the sheet-like food unit (1a) is received in the receiving sections (23, 24) of the packaging device (7).

6. The packaging body according to claim 5, wherein the main plate (8) and the frame plate (10) are raised with respect to the bottom plate (9) and the two storage portions (23, 24) are overlapped in a state in which the sheet-like food units (1a) are stored in the first storage portion (23) and the second storage portion (24), respectively, so that the sheet-like food units (1) are stored in the two storage portions (23, 24) in a state in which they are arranged in two rows from front to back.

7. The packaging container according to claim 1, wherein the packaging material (31) is assembled by continuously providing a frame plate (10) at a lower edge of a main plate (8) via a bottom plate (9), continuously providing a lid plate (12) at an upper edge of the main plate (8) via a connecting plate (11), continuously providing a first support plate (14a) at a left edge of the main plate (8) via a first side plate (13), continuously providing a second support plate (16a) at a right edge of the main plate (8) via a second side plate (15), continuously providing a third support plate (18a) at a left edge of the frame plate (10) via a third side plate (17), and continuously providing a fourth support plate (20a) at a right edge of the frame plate (10) via a fourth side plate (19), and further comprising the main plate (8), the first side plate (13), the second side plate (15), and a hard sheet paper, A first receiving part (23) is formed by surrounding a first supporting plate (14a) and a second supporting plate (16a), a second receiving part (24) is formed by surrounding the frame plate (10), a third side plate (17), a fourth side plate (19), a third supporting plate (18a) and a fourth supporting plate (20a), then, a fixing piece (33) is continuously provided through a weak part (32) at a position of the free end edge of the third supporting plate (18a) and the fourth supporting plate (20a) which is overlapped with the connecting hard board paper (6) of the sheet-shaped food unit (1a) received in the second receiving part (24), and the sheet-shaped food unit (1a) is fixed with the first supporting plate (14a), the second supporting plate (16a), the third supporting plate (18a) and the fourth supporting plate (20a) through the connecting hard board paper (6), thereby accommodating the sheet-like food unit (1a) in the respective accommodation parts (23, 24).

8. The packaging body according to claim 7, wherein the main board (8) and the frame board (10) are raised with respect to the bottom board (9) and the two receiving portions (23, 24) are overlapped in a state where the sheet-like food units (1a) are received in the first receiving portion (23) and the second receiving portion (24), respectively, and the connecting cardboard (6) of the sheet-like food units (1a) received in the first receiving portion (23) and the fixing piece (33) of the second receiving portion (24) opposed to the connecting cardboard (6) are fixed to each other, whereby the sheet-like food units (1) are received in the two receiving portions (23, 24) in a state where they are arranged in two rows in the front and rear direction.

9. A method for manufacturing a package (C), comprising:

(i) a packaging step in which each of a plurality of pieces of sheet-like food (1) is packaged by a packaging sheet (2) which is composed of an extraction portion (4), a fixing portion (5), and a fragile portion (3) between the extraction portion (4) and the fixing portion (5) and which can be opened by cutting the fragile portion (3) and extracting the extraction portion (4);

(ii) an arrangement step of arranging the plurality of packed sheet-like foods (1) in the width direction thereof in proximity to each other;

(iii) a unit forming step of forming a sheet-like food unit (1a) by fixing a connecting cardboard (6) on at least one surface of the fixing portion (5) of each of the packaging sheets (2) of the plurality of aligned sheet-like food items (1), extending the connecting cardboard (6) outward of both ends in the width direction of the sheet-like food items, and folding back the extended portion;

(iv) a cardboard placement step of placing the sheet-like food unit (1a) on a main board (8) of cardboard of a packaging device (41) in such a manner that the respective connecting cardboard sheets (6) are positioned on the side of a bottom plate (9), wherein in the packaging device (41), a frame plate (10) is continuously provided on the lower edge of the main board (8) via the bottom plate (9), a cover plate (12) is continuously provided on the upper edge of the main board (8) via a connecting plate (11), a first support plate (14) is continuously provided on the left edge of the main board (8) via a first side plate (13), and a second support plate (16) is continuously provided on the right edge of the main board (8) via a second side plate (15);

(v) a storage step of folding the first side plate (13), the second side plate (15), the first support plate (14), the second support plate (16), the bottom plate (9), and the frame plate (10) relative to the main plate (8) so as to surround the sheet-like food unit (1a), and fixing the frame plate (10) to the first support plate (14) and the second support plate (16);

(vi) a fixing step of fixing the sheet-like food unit (1a) to at least one of the main plate (8), the first side plate (13), the second side plate (15), the first support plate (14), the second support plate (16), the bottom plate (9), and the frame plate (10) via the connecting cardboard (6); and

(vii) a stacking step of folding the connecting plate (11) and the cover plate (12) with respect to the main plate (8) so that the frame plate (10) and the cover plate (12) are stacked,

the method for manufacturing the package (C) further comprises: placing a plurality of the sheet-like food units (1a) on the main plate (8) of the packaging device (41) in a manner such that the respective connecting cardboard sheets (6) are positioned on the bottom plate (9) side; and fixing each of the plurality of sheet food units (1a) to at least one of the main plate (8), the first side plate (13), the second side plate (15), the first support plate (14), the second support plate (16), the bottom plate (9), the frame plate (10) and the other sheet food units (1 a).

10. A method for manufacturing a package (A), comprising:

(iii) a unit forming step of forming a sheet-like food unit (1a) by fixing a connecting cardboard (6) on the upper surface of the fixing portion (5) of each of the plurality of packaging sheets (2) of the aligned sheet-like food (1);

(iv) a cardboard paper placing step of placing a first sheet-like food unit (1a) on a frame plate (10) of cardboard paper of a packaging device (7) in such a direction that the connecting cardboard paper (6) is positioned on the bottom plate (9) side, placing a second sheet-like food unit (1a) on a main plate (8) of cardboard paper of the packaging device (7) in such a direction that the connecting cardboard paper (6) is positioned on the bottom plate (9) side, wherein the frame plate (10) is continuously provided on the lower edge of the main plate (8) via the bottom plate (9), a cover plate (12) is continuously provided on the upper edge of the main plate (8) via a connecting plate (11), a first support plate (14) is continuously provided on the left edge of the main plate (8) via a first side plate (13), and a second support plate (16) is continuously provided on the right edge of the main plate (8) via a second side plate (15), a third support plate (18) is continuously arranged on the left edge of the frame plate (10) through a third side plate (17), and a fourth support plate (20) is continuously arranged on the right edge of the frame plate (10) through a fourth side plate (19);

(v) a support plate fixing step of bending the first support plate (14), the second support plate (16), the third support plate (18), and the fourth support plate (20) and fixing the inner surfaces of the first support plate (14), the second support plate (16), the third support plate (18), and the fourth support plate (20) to the upper surfaces of the hard sheet paper (6) for connection of the sheet-like food unit (1a) on the main plate (8) and the frame plate (10), respectively; and

(vi) and an overlapping step of overlapping a first storage section (23) surrounded by the main plate (8), the first side plate (13), the second side plate (15), the first support plate (14), and the second support plate (16) with a second storage section (24) surrounded by the frame plate (10), the third side plate (17), the fourth side plate (19), the third support plate (18), and the fourth support plate (20).

11. A method for manufacturing a package (B), comprising:

(iv) a cardboard paper placing step of placing a first sheet-like food unit (1a) on a cardboard frame plate (10) of a packaging device (31) in such a direction that the connecting cardboard paper (6) is positioned on the bottom plate (9) side, and placing a second sheet-like food unit (1a) on a cardboard main plate (8) of the cardboard of the packaging device (31) in such a direction that the connecting cardboard paper (6) is positioned on the bottom plate (9) side, wherein in the packaging device (31), the frame plate (10) is continuously provided on the lower edge of the main plate (8) via the bottom plate (9), a cover plate (12) is continuously provided on the upper edge of the main plate (8) via a connecting plate (11), a first support plate (14a) is continuously provided on the left edge of the main plate (8) via a first side plate (13), and a second support plate (16a) is continuously provided on the right edge of the main plate (8) via a second side plate (15), a third support plate (18a) is continuously provided on the left edge of the frame plate (10) through a third side plate (17), a fourth support plate (20a) is continuously provided on the right edge of the frame plate (10) through a fourth side plate (19), and a fixing piece (33) is continuously provided on each of the free end edges of the third support plate (18a) and the fourth support plate (20a) through a weak portion (32);

(v) a support plate fixing step of bending the first support plate (14a), the second support plate (16a), the third support plate (18a), and the fourth support plate (20a) and fixing the inner surfaces of the first support plate (14a), the second support plate (16a), the third support plate (18a), and the fourth support plate (20a) to the upper surfaces of the hard sheet paper (6) for connection of the sheet-like food unit (1a) on the main plate (8) and the frame plate (10), respectively; and

(vi) and an overlapping step of overlapping a first storage section (23) surrounded by the main plate (8), the first side plate (13), the second side plate (15), the first support plate (14a), and the second support plate (16a) with a second storage section (24) surrounded by the frame plate (10), the third side plate (17), the fourth side plate (19), the third support plate (18a), and the fourth support plate (20a), and fixing the fixing tabs (33) on the second storage section (24) side to the hard sheet paper (6) for connection of the sheet-like food units (1a) stored in the first storage section (23) so as to face the fixing tabs (33).