JP4723234B2 - Easy-open carton - Google Patents

Description

  The present invention relates to a structure of an easily openable carton that facilitates taking out the contents stored therein, and more particularly to an easily openable carton having improved resealability.

  Conventionally, in a carton that wraps food, confectionery, etc., as a typical carton of a type that is provided with easy-opening properties, as shown in FIG. A horizontal type is known. The easy-open carton 2 pulls a knob portion consisting of a part of the front surface, breaks the front surface along a pair of opening breaking lines q, q, and suspends the top along a pair of opening breaking lines p, p. By breaking the surface, as shown in FIG. 6B, the opening / closing portion Q and the opening / closing portion P are opened to take out the contents. And in this easy-opening carton, what was devised so that it can re-seal and preserve | save the contents by providing the insertion piece M and the insertion port N is widely known. As described above, the opening opening / closing portion Q and the opening opening / closing portion P that are once opened are often used in such a manner that the insertion piece M is inserted into the insertion opening N provided by cutting the front and lower surfaces, and then closed and resealed. (For example, refer to Patent Document 1).

JP-A-9-193926

  However, in such an easy-open carton that can be resealed, even if it is attempted to insert the insertion piece M into the insertion port N for resealing, there is a drawback that the paper is repelled and is difficult to insert. In order to make up for the disadvantage that it is difficult to insert the insertion piece M, there is an easy-open carton having a shape in which the insertion piece M is provided with a linear crease. However, there is a problem in that it is easy to come off because it is folded and the resealability is lowered.

  An object of the present invention is to provide an easy-open carton having a shape that is easy to open and has good resealability in an easy-open carton.

According to the present invention, as described in claim 1, the side surface, the top surface, the side surface, the bottom surface, and the adhesive margin piece are connected to each other via a broken line, and the front surface and the rear surface are respectively folded on both sides of the top surface. The front bottom surface and the back bottom surface are connected to both sides of the bottom surface via a broken line, and the front bottom folding piece and the back bottom folding piece are respectively connected to the both side surfaces of the bottom surface via a folding line. A carton blank assembled continuously, and provided with a break line for opening parallel to the top surface, and provided with a break line for opening continuously on the front face with the break line for opening, the break line for opening And an easily openable carton that allows opening of the top surface and a part of the front surface as an opening opening and closing part and an opening opening and closing part, respectively, by tearing the opening breaking line,
In the center of the front surface, a gap between the opening breaking lines is narrowed to provide a knob that protrudes from the opening and closing part,
It is an easily openable carton characterized by inserting the knob part between the front surface and the front lower folding piece at the time of resealing.

Embodiments of the present invention are as follows.
The embodiment according to claim 2 is the easily openable carton according to claim 1, wherein the locking portion is located at the center of the upper side of the front lower surface.

  The embodiment according to claim 3 is the easily openable carton according to claim 1, wherein an upper side of the locking portion is a mountain shape.

  The embodiment according to claim 4 is characterized in that, in the top surface, the breaking line for opening is inside the broken line between the top surface and the both side surfaces. Sex carton.

  According to the easy-opening carton of the present invention, the opening / closing part is opened by inserting the knob of the opening / closing part into the inside of the engaging part that is a part of the front lower surface that is exposed when the opening / closing part is opened. Can be easily removed, and it has the effect of being difficult to come off and having good resealability. Moreover, it can carry out in the manufacturing process of a normal easily openable carton, and has the effect that it can manufacture without changing a production process.

  Hereinafter, embodiments of the easy-open carton of the present invention having good resealability will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of an easily openable carton according to the present invention. The easy-open carton 1 is a rectangular parallelepiped carton having a front surface 16, a top surface 12, a rear surface 17, a bottom surface 14, and both side surfaces 11, 13, and the top surface 12 has a pair of parallel opening breaking lines p, p. The opening 16 is provided with a pair of opening breaking lines q, q continuous with the opening breaking lines p, p. The opening breaking lines q, q and the opening breaking lines p, p By tearing, the central edge of the opening 6 of a part of the front face 16 is made narrow as a picking part 16a by narrowing the width between the breaking lines q and q so that the opening and closing part Q can be easily opened. Yes.

  FIG. 2 is a perspective view showing a state in which the opening / closing portion of the easy-open carton 1 of FIG. 1 is opened, and the opening 16 is opened by picking the knob 16a of the front surface 16 and opening the opening / closing portion Q and the top surface of the front surface 16. 12 shows a state in which 12 opening opening / closing portions P are opened. In this opened state, the product stored in the easy-open carton 1 can be taken out. And between the latching | locking part 18a (shaded part) of the front lower surface 18 used as the lower surface of the front surface 16 exposed from the opening Q 'in the state which opened the opening opening-closing part Q, and the front lower folding pieces 20,22 It can be resealed by inserting the knob 16a of the front surface 16.

  FIG. 3 is a development view showing a blank for assembling the easy-open carton 1 of FIG. 1, in which a blank surface 14 and an adhesive margin piece 15 are connected in series, and the left and right sides of the top surface 12 are connected via broken lines e and f. The front surface 16 and the rear surface 17 are connected to each other, the front lower surface 18 and the rear lower surface 19 are connected to the right and left sides of the bottom surface 14 via the polygonal lines g and h, respectively, and the right and left sides of the side surface 11 are connected to the right and left sides. A front lower folding piece 20 and a rear lower folding piece 21 are connected in series via the polygonal lines i and j, respectively, and the front lower folding piece 22 and the rear lower folding piece are arranged on the right and left sides of the side surface 13 via the polygonal lines k and l, respectively. 23 is continuously provided.

  The top surface 12 is provided with a pair of opening break lines p and p in the lateral direction. A region surrounded by the pair of opening breaking lines p and p is an opening opening / closing portion P, and the pair of breaking lines p and p on the top surface 12 is broken and opened. The pair of opening breaking lines p and p are not necessarily parallel, and may be inclined lines. Further, the breaking line for opening p may be a curved line instead of a straight line. Therefore, the shape of the opening opening / closing portion P is basically a quadrangle and a trapezoid, but can be various shapes. Note that the opening breaking step lines p and p may be located inside the top surface 12 rather than the broken lines a and b. If it is inside, the moldability is maintained even after opening, and the contents can be taken out smoothly. The pair of opening breaking lines p and p are preferably provided with a Y-shaped break, an L-shaped break, a perforation, or the like so as to be easily broken.

  The front surface 16 is provided with a pair of opening break lines q, q continuous with the opening break lines p, p of the top surface 19. A region surrounded by the pair of opening breaking lines q and q is an opening opening / closing portion Q, and the pair of opening breaking lines q and q on the front surface 16 are broken and opened. Further, it is preferable that the opening breaking line q, q is narrowed and provided with a knob portion 16a so that the edge can be easily picked with a finger. The picking portion 16a is picked, and opening can be started by tearing the breaking lines q and q for opening. This knob | pick part 16a protrudes from the opening-and-closing opening-and-closing part Q, and a shape can be made into a semicircle, a trapezoid, a triangle etc., for example.

  Also, the shape of the front lower surface 18 is a part of the front lower surface 16a at the lower part of the opening Q 'when the opening opening / closing portion Q of the front surface 16 overlaid thereon is opened with the easy-opening carton assembled. Is a shape that is exposed as the locking portion 18a. It can be resealed by inserting the opened opening / closing portion Q for opening inside the locking portion 18a. Therefore, it is preferable that the locking portion 18a is positioned at the center of the upper side of the front lower surface 18 and the upper side of the locking portion 18a has a mountain shape so that the knob portion 16a can be easily inserted.

  In order to assemble the easy-open carton 1 from the blank 10 and store the product, first, as shown in FIG. 4-a, the bottom surface 14 is folded back to the side surface 13 side by the broken line c, and then the side surface 11 is folded. It can be made into the easy-open carton 1 in the folded state as shown in FIG.

  Next, as shown in FIG. 4C, the easy-open carton 1 in a state of being sack-fitted and folded is raised in a rectangular tube shape in the step of actually filling the contents, and both rear lower folding pieces 21 , 23 are bent inward, and then the rear lower surface 19 and the rear surface 17 are bent inward in order and adhered to each other, thereby closing one side as shown in FIG. In this state, the contents are filled from the other side opening. After the contents are stored in this manner, as shown in FIG. 4E, both the front lower folding pieces 20 and 22 are folded inward, and then the front lower surface 18 and the front surface 16 are folded inward in order and bonded to each other. To close the other side. Thereby, the easy-open carton 1 shown in FIG. 1 is created.

  In addition to the above method, filling and packaging can be performed also in a so-called wrap round filling method in which contents are stored without folding the easy-open carton 1. That is, by directly wrapping the contents from the blank state, the contents are placed on the bottom surface 14 of the blank 10 so as to be wrapped by the respective surfaces, and the adhesive strip 15 and the side surface 11 are bonded together, and the front and lower surfaces 18 are bonded. 1 and the front surface 16 and the rear lower surface 19 and the rear lower surface 17 are bonded together to produce the easy-open carton 1 shown in FIG. Note that the back surface of the locking portion 18a is avoided from being glued. This is to prevent the insertion of the knob 16a.

  In order to open the easy-open carton 1 of FIG. 1, as shown in FIG. 5-a, as in the conventional easy-open carton, the knob 16a of the front surface 16 is picked and pulled up, and then the knob is picked up. The tear opening line q, q to the side of 16a is torn and the opening / closing portion Q for opening begins to be opened. Subsequently, after opening the opening / closing portion Q for opening of the front surface 16, as shown in FIG. 5B, by tearing the top surface opening portion P of the top surface 12 along the opening breaking lines p, p on both sides, As shown in FIG. 2, the opening / closing portion Q and the top surface opening portion P are opened. The product stored in this state can be taken out.

  When the opening / closing portion once opened is resealed, the locking portion 18a of the front lower surface 18 exposed from the opening Q 'after opening the opening opening / closing portion Q is connected to the front lower folding pieces 20, 22 Can be inserted and locked.

  In the present embodiment, the developed view of the easy-open carton has the shape of FIG. 1, but the shape of the easy-open carton can be freely formed, and the shape thereof is a cube, a polygonal column, a kamaboko shape, etc. It can be.

  In addition, paper is mainly used as a material to be used, but plastic sheets such as polypropylene and polyethylene terephthalate can also be used as materials other than paper. Furthermore, a laminate composed of paper and plastic, metal foil, or the like can be used as a material.

  Examples of easy-open cartons according to the present invention will be described below.

First, printing of a pattern, a character, etc. was performed by offset printing on the surface of a paperboard having a basis weight of 310 g / m ² (trade name: Ultra H (manufactured by Daishowa Paper Co., Ltd.)). The surface of the print was also polished to give a polished surface. A blank having a predetermined shape as shown in FIG. 3 was punched out from the sheet-like surface paper that had been printed and surface-treated with this multi-sided attachment.

  Next, the bottom surface 14 is folded back to the side surface 13 side along the polygonal line c, then the side surface 11 is folded to the top surface 12 side along the polygonal line a, and the adhesive marginal surface 15 and the side surface 11 are bonded together and easily folded. An openable carton 1 was obtained.

  Next, the easy-open carton 1 in the folded state with the sack is raised in a rectangular tube shape in the step of actually filling the contents, and both the folding pieces 21 and 23 are folded inward, and then the rear lower surface 19 and the rear surface 17 are folded inward in this order and adhered to each other to close one side. In this state, the contents are filled from the other side opening. After the contents are stored in this manner, both the folded pieces 20 and 22 are folded inward, and then the other side is closed by bending the front lower surface 18 and the front surface 16 in order and bonding them together. Thereby, the easy-open carton 1 shown in FIG. 1 was created.

  The easy-open carton 1 picks up and pulls the knob 16a of the front face 16, and then tears the opening breaking lines q and q to the side of the knob 16a to open the opening / closing part Q for opening. Subsequently, after opening the opening / closing part Q for opening of the front face 16, the opening / closing part Q for opening and the top face are opened by tearing the top opening part P of the top face 12 along the opening breaking lines p, p on both sides. The unsealed portion P could be opened, and the product stored therein could be taken out.

  Further, when resealing the opened portion, the opening / closing portion Q is opened from the gripping portion 16a to the front lower surface 18 inside the engaging portion 18a exposed from a part of the opening Q 'of the front lower surface 18. It was able to be locked by inserting it into the inside of the locking portion 18a where a part of was exposed.

  As a specific example, it can be used for cartons for storing confectionery, foods, etc., and in particular, it can be widely used for cartons that can be easily taken out and resealed.

It is a perspective view which shows one Example of the easily openable carton of this invention. It is a perspective view which shows the state which opened and opened the opening-and-closing part of the easily openable carton of FIG. It is an expanded view which shows the blank which forms the easily openable carton of FIG. It is a figure explaining the process of assembling the easily openable carton of this invention from a blank. It is a figure explaining the opening method of the easily openable carton of this invention. It is a perspective view which shows the example of the conventional easily openable carton.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Easy-opening carton 2 Conventional easy-opening carton 10 Blank 11 Side surface 12 Top surface 13 Side surface 14 Bottom surface 15 Adhesive piece 16 Front surface 16a Picking part 17 Rear surface 18 Front lower surface 18a Locking part 19 Rear lower surface 20 Front lower folding piece 21 Rear lower folding piece 22 Front lower folding piece 23 Rear lower folding piece p Opening break line q Opening break line P Opening opening / closing part Q Opening opening / closing part Q 'Opening opening M Insertion piece N Insertion opening a to l Folding line

Claims (4)

Side, top surface, side surface, bottom surface, glue margin piece are connected via a broken line, respectively, both sides of the top surface are connected to the front and rear surfaces via a broken line, and both sides of the bottom surface are connected to both sides. Each carton is formed by assembling a carton blank in which the front lower surface and the rear lower surface are continuously connected via a broken line, and the front and lower folded pieces and the rear lower folded piece are continuously connected to each side of the both side faces via a broken line, respectively. An opening break line parallel to the top surface is provided, an opening break line is provided on the front surface in succession to the opening break line, and the opening break line and the opening break line are torn. An easily openable carton that can be opened as an opening opening and closing part and an opening opening and closing part, respectively.
In the center of the front surface, a gap between the opening breaking lines is narrowed to provide a knob that protrudes from the opening and closing part,
An easily openable carton , wherein the picking portion is inserted between the front surface and the front lower folding piece when resealing .   The easily openable carton according to claim 1, wherein the locking portion is located in a central portion of the upper side of the front lower surface.   The easily openable carton according to claim 1, wherein an upper side of the locking portion is a mountain shape.   The easily openable carton according to claim 1, wherein the opening breaking line is located inside the broken line between the top surface and the both side surfaces of the top surface.

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