JP6497074B2 - Packaging container - Google Patents

Description

  The present invention relates to a packaging container. In particular, the present invention relates to a packaging container that can be held in a state where the opening is widely opened.

  The flexible packaging bag has the merit that it can be stored and transported in a state of being laid down, and the cost is low. Various products such as a square-bottom bag and a standing pouch have been commercialized as products having self-supporting properties. On the other hand, there are a bag-in carton and a bag-in box as a container composed of a flexible packaging bag and a carton.

  However, it is difficult to hold the opening in a wide open state when the bag is opened even with a square bottom bag or a standing pouch having self-supporting properties. Further, it is difficult to hold the bag in a carton or bag-in-box in an opened state, and it is difficult to use in terms of cost.

  There is also a self-supporting composite container in which a soft packaging bag and an inverted frustoconical cylindrical member made of paperboard are in close contact, and the open end of the upper end of the soft packaging bag is horizontally sealed (Patent Document 1). ).

  In this container, the opening can be held in a wide open state, but cannot be covered. Also, it cannot be made small before opening.

  Known documents are shown below.

Japanese Patent Laid-Open No. 11-236054

  The present invention has been made in view of the above circumstances, and provides a packaging container that can be kept small in size before opening, and expanded after opening to hold the opening in an open state. It is an issue.

The present invention has been made in view of the problems, and the invention of claim 1 is a packaging container comprising a carton and an inner bag inserted inside the carton, and the carton faces the bottom surface. It has a front plate and a rear plate, and a left side plate and a right side plate that face each other, and the left side plate and the right side plate are vertically folded in two at the upper end, and a folded portion is folded inward to form the front plate and the rear plate. The upper surface portion of the inner bag protrudes from the proximity of the face plate, and an extension portion is provided on either the front plate or the rear plate facing each other. The packaging container is characterized in that it is locked along the back surface, and a protruding port for protruding the upper end portion of the inner bag is provided in the extended portion .

The invention of claim 2 is obtained by a packaging container according to claim 1, characterized in that easy-cutting line toward each of the projecting port from the left and right to the extension portion is provided.

The invention according to claim 3 is the packaging container according to any one of claims 1 to 2 , wherein the inner bag is a side gusset bag.

Moreover, in invention of Claim 4 , the said inner bag is a side gusset bag, It is set as the packaging container of any one of Claim 1 to 3 characterized by the above-mentioned.

Moreover, in invention of Claim 5 , the outer surface of the front film and back film of the said inner bag is each affixed on the inner surface of the said front board and the said rear board, The any one of Claim 1 to 4 characterized by the above-mentioned. Or a packaging container according to item 1.

  The packaging container of the present invention can be kept small in size before opening, widened after opening, and opened.

It is explanatory drawing which showed typically an example of the packaging container of this invention with the perspective. It is explanatory drawing which showed typically the blank of the carton of an example of the packaging container of this invention. It is explanatory drawing which showed typically the inner bag of an example of the packaging container of this invention. It is explanatory drawing which showed typically the state which opened the example of the packaging container of this invention, and opened the opening | mouth. It is explanatory drawing which showed the other example of the packaging container of this invention typically by the perspective view. It is explanatory drawing which showed typically the blank of the carton of the other example of the packaging container of this invention.

Hereinafter, embodiments for carrying out the present invention will be described.
FIG. 1 is an explanatory view schematically showing an example of the packaging container of the present invention in a perspective view.

  As shown in the perspective view of FIG. 1, the packaging container 100 of this example includes a carton 200 and an inner bag 300 inserted inside the carton 200. The carton 200 has a bottom surface, a front plate 1 and a rear surface plate 2 that face each other from the peripheral edge of the bottom surface, and a left side plate 3 and a right side plate 4 that face each other, and the left side plate 3 and the right side plate 4 have two upper ends. The front plate 1 and the rear plate 2 are close to each other, and the upper end portion of the inner bag 300 protrudes from the close proximity.

  An extension 5 is provided at the upper end of the front plate 1 of the carton 200 and is folded back and inserted along the inner side of the rear plate 2 to be locked. Further, the extension portion 5 is provided with a protruding port 6 formed of an elongated through hole, and the upper end portion of the inner bag 300 protrudes through the protruding port 6.

FIG. 2 is an explanatory view schematically showing a carton blank as an example of the packaging container of the present invention.
As shown in FIG. 2, a front plate 1, a right side plate 4, a rear side plate 2, and a left side plate 3 are connected to the blank 201 of the carton 200, and an adhesive plate 7 is connected to the left side of the front plate 1.

The left side surface plate 3 and the right side surface plate 4 are provided with a crease for facilitating vertical folding of the upper end into two. This crease has a vertical crease 3a, 4a that extends downward from the upper end to the left and right center of each of the left side plate 3 and the right side plate 4;
It consists of diagonal creases 3b, 3c, 4b and 4c leading to a.

  An extension portion 5 is connected to the upper end of the front plate 1, and the extension portion 5 is provided with a protruding port 6 formed of an elongated through hole for protruding the upper end portion of the inner bag 300. In addition, the extension portion 5 is provided with easy-cut lines 8 and 8 that are directed from the left and right toward the protrusion 6, respectively. The easy cutting line 8 is provided by a broken line. However, the present invention is not limited to this, and it may be provided by other methods such as a half-cut line.

  The bottom of the carton 200 of this example is the bottom of the code number 0712 of JIS Z1507 “Cardboard Box Format”. That is, flaps 9a and 9b are provided at the lower ends of the right side plate 4 and the left side plate 3, the bottom plates 9c and 9d are provided at the lower ends of the front plate 1 and the rear plate 2, and the bottom plates 9c and 9d are folded. Sticking pieces 9g and 9h are extended through 9e and 9f. The creases 9e and 9f are lead creases in which the creases and broken lines are combined, while the other creases are provided by the creases, and are particularly easy to break.

  In order to assemble the carton 200 from the blank 201, the crease between the front plate 1 and the right side plate 4 and the crease between the rear plate 2 and the left side plate 3 are folded, and the surface of the sticking plate 7 is left side plate. Adhere to the back of 3.

  Further, the flaps 9a and 9b and the bottom plates 9c and 9d are folded back, and the sticking pieces 9g and 9h are folded back by the creases 9e and 9f. Glue the back of the. And if the front board 1, the right side board 4, the rear side board 2, and the left side board 3 are raised so that it may become a square tube shape, a bottom part will be formed flat.

  The inner bag 300 is inserted into the carton 200, and the outer surfaces of the front film and the back film of the inner bag 300 are bonded to the inner surfaces of the front plate 1 and the rear plate 2 of the carton 200 with an adhesive or the like. Bonding may be performed not on the entire surface but on a partial bond.

  Then, the vertical creases 3a and 4a and the oblique creases 3b, 3c, 4b and 4c of the left side plate 3 and the right side plate 4 are pushed inwardly, and the extension portion 5 is folded, and the inner bag 300 is folded. The upper end portion of the inner bag 300 is inserted from the inside into the protruding port 6 formed of the through hole of the extension portion 5, the upper end portion of the inner bag 300 is protruded from the protruding port 6, and the extension portion 5 is inserted and locked along the rear surface of the rear plate 2 . Thereby, the packaging container 100 as shown in FIG. 1 is completed.

  FIG. 3 is an explanatory view schematically showing an inner bag of an example of the packaging container of the present invention, and FIG. 4 is a perspective view schematically showing a state where the example of the packaging container of the present invention is opened and the mouth is opened. It is explanatory drawing shown.

  As shown in FIG. 3, the inner bag 300 is preferably a side gusset bag in which gusset portions 13 and 14 are provided between the front film 11 and the back film 12 in accordance with the left side plate 3 and the right side plate 4. . Thus, the inner bag 300 is made into a side gusset bag, inserted into the carton 200 and fixed by adhesion, whereby the packaging container 100 as shown in FIG. 1 can be obtained.

  Then, the upper end portion of the inner bag 300 of the packaging container 100 is cut out and opened in parallel with the top seal portion, and the easy cutting lines 8 and 8 respectively directed from the left and right of the extension portion 5 of the carton 200 to the protrusion 6 are cut. The face plate 1 and the back plate 2 can be opened. When the front plate 1 and the rear plate 2 are opened, the folded gusset portions 13 and 14 of the inner bag 300 extend flatly to open the opening and can be held in a large open state as shown in FIG. .

  In addition, a crease can also be provided in the extension part 5 without providing the easy cutting lines 8 and 8. In this case, when opening, the front plate 1 and the rear plate 2 are opened by removing from the rear surface of the rear plate 2 inserted and locked. Even in this case, the opening of the inner bag 300 can be held in a state of being largely opened. Moreover, when the upper end of the inner bag 300 is folded back, put into a carton, and the extension portion 5 is inserted and locked along the back surface of the rear plate 2 again, it can be resealed.

  FIG. 5 is an explanatory view schematically showing another example of the packaging container of the present invention in perspective, and FIG. 6 is an explanatory view schematically showing a carton blank of another example of the packaging container of the present invention. is there.

  FIG. 5 shows a packaging container 400 according to another example of the present invention. In the packaging container 100, the front plate 1 and the rear plate 2 of the carton 200 are curved or bent inward to reduce the capacity. However, in the carton 500 of the packaging container 400, the front plate 1 and the rear plate 2 are It is flat without bending. In this way, it is easy to see the pattern and characters displayed in good shape and there.

  In the carton 500, the left and right sides of the left side plate 3 and the right side plate 4 are arranged on the left and right sides of the left side plate 3 and the right side plate 4 as shown in FIG. Folded lines 3d, 3e, 4d, 4e are provided from the center toward the left and right corners of the respective lower ends. Since the creases are thus provided, the front plate 1 and the rear plate 2 can be formed flat without being bent.

Hereinafter, materials to be used will be described.
Paperboard, corrugated paper, a plastic sheet, etc. can be used for the material which comprises the carton 200,500.

  The inner bag 300 is preferably made of a laminated film in which a base film and a sealant film are laminated. An intermediate film may be provided between the base film and the sealant film.

  For the base film, a stretched film of a resin such as polyethylene terephthalate, nylon, or polypropylene is preferably used. Moreover, you may use the vapor deposition film which provided the vapor deposition layer of inorganic oxides, such as an alumina and a silica, in these films.

  You may provide a pattern printing layer in the back surface of a base film. The printing method for providing the pattern printing layer is not particularly limited, and printing methods such as gravure printing, flexographic printing, and inkjet printing can be used.

  As the sealant film, a polyethylene film such as low density polyethylene or linear low density polyethylene, or a thermoplastic resin film such as polypropylene film is used. Moreover, you may use the multilayer film by coextrusion etc. for a sealant film.

  When an intermediate film is used, an unstretched nylon film can be used as the intermediate film. Also, use stretched films such as polyethylene terephthalate, nylon, and ethylene-vinyl alcohol copolymers, and vapor deposited films that are provided with a vapor deposited layer of an inorganic oxide such as alumina or silica, or a metal such as aluminum. You can also.

  Further, a so-called MXD nylon made of metaxylenediamine / adipic acid having a high barrier property, a film such as an ethylene-vinyl alcohol copolymer, or a metal foil such as aluminum may be used for the intermediate film. Furthermore, the intermediate film may be a multilayer film by combining these films and foils.

  These substrate film, sealant film, and intermediate film can be laminated by a dry lamination method using a two-component curable urethane adhesive or the like. Alternatively, the thermoplastic resin may be melted and extruded and laminated by a sandwich lamination method.

  As described above, the packaging container of the present invention is made smaller by opening the front plate and the rear plate close to each other before opening, and after opening, the front plate and the rear plate are separated and inserted accordingly. The opening of the inner bag is also widened, supported by the outer carton, and can be held in an opened state.

  Therefore, the contents stored in the inner bag can be easily taken out. Moreover, depending on the case, it can also be eaten as it is, using it as the tableware in the opened state. For example, it is possible to fill the inner bag with dry food, and after opening, pour hot water to cook it and use it as it is as tableware.

  Moreover, since it can be made small before opening, it is advantageous in transportation. In stores and the like, the carton with the bottom is self-supporting and easy to display, and the shape is unique, so eye-catching properties can be expected.

100, 400 ... packaging containers 200, 500 ... cartons 201, 501 ... blank 1 ... front plate 2 ... rear plate 3 ... left side plate 4 ... right side plate 3a, 4a ..Vertical creases 3b, 3c, 4b, 4c, 3d, 3e, 4d, 4e ... folds 5 ... extensions 6 ... extrusion ports 7 ... sticking plates 8, 8 ... Easy cutting lines 9a, 9b ... flaps 9c, 9d ... bottom plate 9e, 9f ... creases 9g, 9h ... sticking piece 300 ... inner bag 11 ... front film 12 ...・ Back film 13, 14 ... gusset

Claims (5)

A packaging container comprising a carton and an inner bag inserted inside the carton, wherein the carton has a bottom surface, opposing front and rear plates, and opposing left and right side plates, The left side plate and the right side plate are vertically folded in two at the upper end, the folded portion is folded inward, the front plate and the rear plate are close to each other, and the upper end portion of the inner bag protrudes from the proximity. An extension is provided on either the front plate or the rear plate facing each other, the extension is locked along the back surface of the facing plate, and the upper end portion of the inner bag protrudes from the extension. A packaging container, characterized in that a protruding opening is provided . The packaging container according to claim 1 , wherein easy-to-cut lines extending from the left and right toward the protruding port are provided on the extension part. The packaging container according to claim 1 or 2 , wherein the left side plate and the right side plate are provided with a crease for facilitating vertical folding of the upper end into two. The packaging container according to any one of claims 1 to 3 , wherein the inner bag is a side gusset bag. The packaging container according to any one of claims 1 to 4 , wherein the outer surfaces of the front film and the back film of the inner bag are bonded to the inner surfaces of the front plate and the rear plate, respectively. .

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