JP6183647B2 - Paper carton - Google Patents

Description

  The present invention belongs to the technical field of a paper carton formed by assembling a blank in which paperboard is punched into a developed shape, and more particularly to a straight-sack type paper carton having both ends sealed.

  Conventionally, as one of the paper cartons for selling confectionery, there is a straight sack type paper carton with both ends closed with a seal end. And vertical (vertical) type.

  And in the horizontal installation type, a type having a structure that is largely opened by breaking a perforation extending from the knob provided on the front panel to the front panel and the top panel to form a lid is used. Yes. Also, in the vertical type, the top panel at the seal end is torn and removed, and the top panel is opened in half or adjacent to the top panel at the seal end. The semi-circular perforation on the back panel is pushed with the fingertips, and the top panel is broken and opened at the perforation, and the zipper that crosses the top of the front panel is further torn. A lid that can be opened and closed by tearing the perforation of the side panel and using the broken line of the back panel as a hinge is also used.

  On the other hand, such a straight sack type paper carton is known that can be reduced in size when the contents are reduced and can be closed in a reduced volume state (for example, Patent Documents 1 and 2).

JP 2012-126427 A Japanese Unexamined Patent Publication No. 7-61443

  Currently, in the confectionery industry, pillow packaging bags are frequently used as containers for selling individual confectioneries together for convenience and safety. This pillow packaging bag is sold at the store as a product with individual confectionery in the state, but in order to increase the safety of the contents and give a sense of quality as a product, the pillow packaging bag Are often sold in a state of being housed in a paper carton of the same size, and as a paper carton for this purpose, a straight carton type paper carton as described above is often used.

  When filling a pillow packaging bag containing confectionery into a straight sack type paper carton, in the filling process, the blank is sacked and folded into a square tube shape, and one opening is closed with a seal end. Thereafter, a procedure is adopted in which a pillow packaging bag is inserted from the other opening and the opening is closed by a seal end. At this time, since the pillow packaging bag is normally filled in the carton in the vertical direction, that is, in the direction of the back seal portion, it is stored in the carton so that the end seal portion contacts the seal end.

  The paper carton capable of volume reduction described in Patent Documents 1 and 2 is a straight-sack type and is a vertically oriented type. When opening, the seal end portion is opened. If the contents are to be taken out while being put inside, the end seal portion of the pillow packaging bag is opened, and the opening is small and difficult to take out.

  For this reason, using a straight-back sack-type paper carton, open the top panel on the top, open the top of the pillow wrapping bag, form a large opening, and fill the contents. There is a request to take out. However, the straight sack type paper carton has folding flaps at the top and bottom of the seal end due to the structure, so if you try to open the top panel with the horizontally long top panel as a lid, the top folding flap will get caught and obstructed. Become. Therefore, conventionally, the continuous portion of the folding flap is perforated, and the folding flap is cut simultaneously when the lid is opened.

  The present invention has been made in view of such problems, and the object of the present invention is to open a horizontally long top panel located on the entire surface while being a direct-sack type and a horizontal type. The object is to provide a paper carton which can be reduced in volume and has an excellent design as well as a folding flap.

In order to achieve the above object, the paper carton of the present invention is a paper carton formed by assembling a single blank made of paperboard and having a thin appearance in the front-rear direction. The panel, the top panel, and the lid panel are arranged in this order, and the body is formed by pasting a part of the lid panel to the front panel, and it is provided on both sides of the top panel and the bottom panel. After folding the upper and lower folding flaps inward, both the end panel connected to the back panel and the end panel connected to the front panel are bent inward and attached to each other to form the left and right end face closures. The outer end panel is provided with folds by outer and inner diagonal fold lines extending from the center of the upper side to both sides, and the inner end panel has an oblique fold line of the outer end panel. The folds of the outer end panel can be folded so as to protrude outward at the diagonal fold line with the inner end panel, and the lid panel or a part thereof can be folded. It is designed to open and close with the top panel by pulling up the opening and closing part. After opening, the folding part of the outer end panel is folded out so as to protrude outward and the top panel There is a detachable locking means between the opening and closing part and the front panel so that the folding panel on both sides is extended and the top panel and the opening and closing part can be overlapped and closed on the front panel. provided, the inner end face panel is characterized by a shape formed by cutting a portion corresponding to the outside than the outer diagonal fold line.

In order to achieve the same object, the paper carton of the present invention is a paper carton formed by assembling a single blank made of paperboard and having a thin appearance in the front-rear direction. The back panel, the top panel, and the lid panel are connected in this order, and the body is formed by pasting a part of the lid panel to the front panel, and is provided on both sides of the top panel and the bottom panel. The upper and lower folding flaps are folded inward, then both the end panel connected to the back panel and the end panel connected to the front panel are folded inward and attached to each other to form the left and right end face closures. The outer end face panel is provided with a folding portion by an outer and inner diagonal fold line extending from the center of the upper side to both sides, and the inner end face panel is folded diagonally of the outer end face panel. An oblique fold line that overlaps the line is formed, and the folded portion of the outer end face panel can be folded so as to protrude outward at the oblique fold line with the inner end face panel. A part of the opening / closing part is opened, and the opening / closing part is pulled up to rotate together with the top panel. After opening, the folding part of the outer end panel is folded out so as to protrude outward and the top surface. Removable latch between the opening and closing part and the front panel so that the folding flaps on both sides of the panel are extended and then the top panel and the opening and closing part can be overlaid and closed on the front panel means is provided with, the folding flap on each side of the top panel, it is shape not protruding from the folding of the outer end face panel when stretched And features.

  In the paper carton of the present invention, after opening and closing the lid panel as an opening / closing part or a part thereof, the folding part of the outer end face panel is folded so as to protrude outward together with the inner end face panel, and both sides of the top panel are After extending the folding flap at the top and closing the top panel and the opening / closing part on the front panel, it becomes smaller and looks like a clutch bag. It can be reduced in volume after opening the horizontally long top panel, and the folding flap does not get in the way, making it easy to carry and easy to store in a bag etc. ing.

  In addition, the paper carton of the present invention can be opened by cutting the seal part of the pillow packaging bag in the horizontal direction because the opening of the box changes by 90 degrees when the pillow packaging bag containing the confectionery is filled in the sack direction. As a result, the opening becomes wide and the contents can be easily taken out.

It is a perspective view which shows an example of the paper carton concerning this invention. It is an expanded view of the blank which assembles the paper carton of FIG. It is a top view shown in the state which opened the paper carton of FIG. It is a top view shown in the state which resealed the paper carton of FIG.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an example of a paper carton according to the present invention, and this paper carton is formed by assembling a blank whose development is shown in FIG.

  The blank shown in FIG. 2 is obtained by punching a paperboard used in an ordinary paper carton. As shown in the drawing, the front panel 1, the bottom panel 2, and the back panel are disposed through the horizontal folding lines a, b, c, and d. 3, the top panel 4 and the lid panel 5 are connected in this order. End panels 6 are connected to the left and right sides of the front panel 1 via folding lines e, and folding flaps 7 are connected to the left and right sides of the bottom panel 2 via folding lines f. End panels 8 are connected to the left and right sides via folding lines g, and folding flaps 9 are connected to the left and right sides of the top panel 4 via folding lines h.

  The front panel 1 is formed with a cutting line α formed by a cutting portion that is substantially parallel to the edge and a cutting portion that is curved from both ends and obliquely outwards. A fracture region 1a having a size slightly smaller than the lid panel 5 is defined in the upper part.

  The rupture region 1 a is bonded to the lid panel 5, and the lid panel 5 is ruptured by pulling the rupture region 1 a of the front panel 1 by an opening operation for lifting the lid panel 5. Therefore, the cutting line α that divides the breaking region 1a is formed by a plurality of cutting lines that are continuous from the center toward both sides, and each cutting line has a leading end so that the cutting lines are connected and broken. The receiving part which bent is provided.

  The end face panels 6 connected to the left and right sides of the front panel 1 are outside the end face closing portion. The end face panels 6 are separated by outer and inner diagonal fold lines i and j extending from the center of the upper side to both sides. A folding part is provided. In this blank, a fold line k is provided that crosses slightly below the center of both sides, and a region between the upper side and the fold line k is a fold portion formed by diagonal fold lines i and j.

  The end panel 8 connected to the left and right sides of the back panel 3 is bonded to the inside of the end panel 6. Here, the portion corresponding to the outside from the oblique fold line i outside the end panel 6 is cut out. The shape is made. The end face panel 8 is formed with an oblique fold line l that overlaps the oblique fold line j inside the end face panel 6, and is formed with a transverse fold line m that overlaps the transverse fold line k. In consideration of ease of bending, the lead ruled line is formed with a cut in the middle of the ruled line.

  The folding flaps 7 provided on both sides of the bottom panel 2 have the same shape as the folding flaps used in ordinary paper containers. On the other hand, the folding flaps 9 provided on both sides of the top surface flap 4 have a size that is not more than half the width of the end panel 6 and have a curved outer edge as shown in the drawing.

  The lid panel 5 is bonded to the fracture region 1a of the front panel 1 at the time of assembly. Therefore, the size is one size larger than the broken region, and here, the corner is designed to be rounded as shown in the figure. And the knob | pick part 10 is continuously provided in the front-end | tip of this cover panel 5 via the fold line n, and the circular-arc-shaped notch (beta) toward the cover panel 5 is formed in the center part of the fold line n, A locking projection 10 a is projected from the knob 10 by the cut β.

  A cut γ is formed in the front panel 1 at a position slightly lower than the center. This notch γ is for locking the locking convex portion 10a continuously provided at the tip of the lid panel 5 when the opened paper carton is resealed, in order to allow a little allowance for opening and closing operation, The top panel 4 and the lid panel 5 are formed so as to be lowered from the upper side of the front panel 1 by a length slightly shorter than the combined length of the top panel 4 and the lid panel 5.

  The blank shown in FIG. 2 is folded at the folding lines “a” and “c” and is in a sack pasting state in which the lid panel 5 is stuck to the front panel 1. At this time, the front panel 1 is glued at the broken region 1a. And what was folded in the sack pasting state in this way is sent to a filling process, it is assembled at the same time as the contents are filled, and the paper carton of FIG. 1 is formed.

  In the filling process, first, the folded blank is raised into a square tube shape, and then the folding flaps 7 and 9 are folded inward on one end face side, and then the end face panel 8 and the end face panel 6 are sequentially folded and bonded together. To form an end face closing portion. At this time, the triangular area surrounded by the outer and inner diagonal fold lines i and j and the lateral fold line k is not glued, but is bonded to the other areas. Next, after the contents are introduced from the opened end face side, the end face side is similarly closed to form an end face closing portion. As a result, as shown in FIG. 1, a paper carton having a rectangular parallelepiped shape that is horizontally long and thin in the front-rear direction is created.

  When opening the paper carton, as shown in FIG. 3, the handle 10 of the lid panel 5 is picked up and pulled up so that the fracture region 1a of the front panel 1 adhered to the lid panel 5 is cut along the surrounding cutting line. Fracture occurs at α, and the lid panel 5 is rotated to the rear together with the top panel 4 using the lid panel 5 as an opening / closing portion in a state where the fracture area 1a is brought. By rotating the lid panel 5 together with the top panel 4 in this way, the horizontally long top panel 4 can be opened over the entire surface, so that the contents can be taken out from the wide opening. In addition to the entire lid panel 5 as an opening / closing portion as in this example, a part of the lid panel 5 may be configured as an opening / closing portion.

  The paper carton of FIG. 1 can be made smaller if the contents are reduced after opening. That is, the folded portion of the outer end panel 6 is folded together with the inner end panel 8 so as to protrude outward at the diagonal fold lines i and j, and the folding flaps 9 on both sides of the top panel 4 are extended on both the left and right sides. After that, when the top panel 4 and the lid panel 5 are overlapped with the front panel 1 and the locking projection 10a of the knob 10 is inserted into the notch γ of the front panel 1 from below and closed, the volume is reduced as shown in FIG. It becomes the shape that became. At this time, the inner end face panel 8 has a shape in which a portion corresponding to the outside is cut away from the outer oblique fold line i of the outer end face panel 6, so that the folding portion is easily protruded outward. In addition, since the inner end panel 8 diagonal fold line l is easily bent by the lead rule, the folding portion is more easily protruded outward.

When the paper carton once opened is re-sealed in this way, the paper carton becomes small and has a shape like a clutch bag as shown in FIG. 4. Therefore, it is convenient to carry and easy to store in a bag or the like. Further, the folding flaps 9 on both sides of the top panel 4 do not protrude from the folded portion of the outer end panel 6 in the stretched state, and do not get in the way and have a good appearance.

  The paper carton of FIG. 1 can be made into a commercial product by putting various confectionery items as contents. At this time, you may make it accommodate the pillow packaging bag which put each confectionery together. Thus, when storing the pillow packaging bag as the contents, in the filling process, the pillow packaging bag is filled into the carton in the direction of the back seal portion, and the end seal portion is placed in the carton so that it is in contact with the seal end. Stored. Thus, the paper carton is not opened at the end face closing portion as in the prior art, but the opening is changed 90 degrees as shown in FIG. By opening in a horizontal direction, the opening becomes wide and the contents can be easily taken out.

  The embodiment of the present invention has been described in detail with reference to one example. However, the paper carton according to the present invention is not limited to the above embodiment and does not depart from the spirit of the present invention. Of course, various changes in the range are possible.

  For example, the shapes of the break region, the folding flap, the lid panel, the knob, etc. of the front panel are not limited to those described above, and various shapes can be adopted in design. In addition to the lid panel as a whole as in the above example, as described above, a zipper or a cut line may be appropriately formed in the lid panel so that a part of the lid panel serves as the opening / closing part. Good.

  Further, in the above example, the end face closing portion is formed by using the end face panel connected to the left and right sides of the front panel as the outer end face panel and the end face panel connected to the left and right sides of the back panel as the inner end face panel. However, the end panel positioned on the outer side and the end panel positioned on the inner side may be reversed.

  In the above example, the folding parts provided on both sides of the paper carton are the parts extending from the upper side to the middle of the end face panel. However, the entire end face panel may be used as the folding part by providing an oblique folding line to the lower end. Is possible.

  Further, in the above example, the detachable locking means is formed by the combination of the knob provided at the front end of the lid panel and the front panel notch, but various locking such as balance with the design is required. Measures can be taken.

  The paper carton of the present invention is preferably used for storing and selling confectionery such as snack confectionery and baked confectionery (biscuits, cookies, etc.). The type of filling in the direction is suitable.

DESCRIPTION OF SYMBOLS 1 Front panel 1a Breaking area 2 Bottom panel 3 Back panel 4 Top panel 5 Lid panel 6 End panel 7 Folding flap 8 End surface panel 9 Folding flap 10 Knob 10a Locking convex part a ~ n Folding line α Cutting line β, γ Notch

Claims (2)

A paper carton that is formed by assembling a single blank made of paperboard and has a thin appearance in the front-rear direction. The front panel, bottom panel, back panel, top panel, and lid panel are connected in this order. The body is formed by attaching a part of the lid panel to the front panel, and the upper and lower folding flaps provided on both sides of the top panel and bottom panel are folded inward, and then connected to the rear panel. Both the end face panel to be installed and the end face panel connected to the front panel are folded inward and adhered to each other to form left and right end face closing portions. The outer end face panel extends from the center of the upper side to both sides. Folding parts are provided by the outer and inner diagonal folding lines, and the inner end panel is formed with diagonal folding lines that overlap the diagonal folding lines of the outer end panel, and the outer end panel is folded. The ridge part can be folded so that it pulls out the inner end face panel so that it protrudes outward at the diagonal fold line. It is designed to be rotated with the panel to be opened, and after opening, fold the outer end panel so that the folded part protrudes outward and extend the folding flaps on both sides of the top panel In order to allow the top panel and the opening / closing part to be overlapped and closed on the front panel, a detachable locking means is provided between the opening / closing part and the front panel . paper carton you wherein the obliquely fold line is a shape formed by cutting a portion corresponding to the outside. A paper carton that is formed by assembling a single blank made of paperboard and has a thin appearance in the front-rear direction. The front panel, bottom panel, back panel, top panel, and lid panel are connected in this order. The body is formed by attaching a part of the lid panel to the front panel, and the upper and lower folding flaps provided on both sides of the top panel and bottom panel are folded inward, and then connected to the rear panel. Both the end face panel to be installed and the end face panel connected to the front panel are folded inward and adhered to each other to form left and right end face closing portions. The outer end face panel extends from the center of the upper side to both sides. Folding parts are provided by the outer and inner diagonal folding lines, and the inner end panel is formed with diagonal folding lines that overlap the diagonal folding lines of the outer end panel, and the outer end panel is folded. The ridge part can be folded so that it pulls out the inner end face panel so that it protrudes outward at the diagonal fold line. It is designed to be rotated with the panel to be opened, and after opening, fold the outer end panel so that the folded part protrudes outward and extend the folding flaps on both sides of the top panel In order to allow the top panel and the opening / closing part to be overlapped and closed on the front panel, a detachable locking means is provided between the opening / closing part and the front panel and is provided on both sides of the top panel. folding flaps, paper cartons you being a shape not protruding from the folding of the outer end face panel when stretched.

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