JP2009184696A - Multi-pack package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-pack package in which while a wrapping film is less likely to be torn accidentally during a distribution process or the like, the film when required to open is easily torn, thereby enabling the individual separation of boxes. <P>SOLUTION: The multi-pack package 1 includes: an assemblage 5 of boxes 2 (each of which contains food and has a rectangular front wall 21) laid adjacent to one another so that their front walls 21 are in the same plane; and the wrapping film 5 heat-shrunk to cover the periphery of the assemblage 3. In the multi-pack package 1, the wrapping film 5 has tearing perforations 7 for opening in a position corresponding to a first ridge line 61 of each box 2 on the upper edge of the front wall 21 of each box 2, or in a position corresponding to the vicinity of this first ridge line 61. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a multipack package in which a plurality of boxes containing foods are packaged together using an encapsulated film.

  Conventionally, foods such as sweets, seasonings, and beverages are stored in boxes and provided to the market. For example, solid foods such as sweets and seasonings are individually packaged and stored in a paper box. Liquid foods such as beverages are enclosed in a waterproof paper box (generally called a brick pack).

Boxes containing these foods may be sold separately or sold in the form of a multi-pack package in which a plurality of boxes are packaged with an enveloping film for collective selling.
More specifically, the multi-pack package includes, for example, a plurality of rectangular parallelepiped boxes (so-called brick packs) enclosing a beverage, with the side walls of the boxes adjacent to each other, and heat shrinkage around the boxes. It is comprised by carrying out the heat shrink mounting | wearing of the nature enveloping film.
Individual box bodies can be taken out by opening the enveloping film of the multi-pack package.
In order to facilitate the opening of the encapsulated film, Patent Document 1 discloses a plastic film package in which a perforation is formed only on one surface of the film on the outer periphery of the bonded surface of the packaged article.
Japanese Utility Model Publication No. 48-7257

  However, the package of Patent Document 1 has a perforation formed on one surface of the film corresponding to the bonding surface of the box (article), that is, a film that is flat according to the surface shape of each box. Since the perforation is formed in one surface of the film, if the foreign material hits the film during the distribution process, the film may be easily broken from the perforation. If the film is easily broken in this manner, the box body is divided into pieces before being displayed and sold at the storefront, and cannot function as a multipack package.

  The present invention is to provide a multi-pack packaging body in which an enveloping film is difficult to break carelessly in a distribution process or the like, and on the other hand, when opening, the encapsulating film is broken to divide each box individually. Let it be an issue.

  The multi-pack package of the present invention includes a stack in which foods are stored and a plurality of boxes having a rectangular front wall are stacked adjacent to each other so that the front walls are on the same plane, and the stack A multi-pack package having an enveloping film encapsulated by heat shrink around the body, the encapsulating film corresponding to a first ridge line of each box on the upper side of the front wall of each box An opening perforation is formed at a position corresponding to the position or the vicinity of the first ridge line.

In the multipack package of the present invention, the perforation for opening the encapsulated film is formed at a position corresponding to the first ridge line of each box or the vicinity of the first ridge line. For this reason, for example, when the front wall of the box is strongly pressed from above the film to be wrapped, the tensile force is concentrated on the film portion at the position corresponding to the first ridge line of the box. As a result, the enveloping film is broken at the opening perforation, and the enveloping film is torn and the box can be divided individually.
In addition, as described above, the multi-pack package of the present invention uses an opening perforation formed at a position corresponding to the first ridge line of each box or the vicinity of the first ridge line. Since it can be broken, for example, it is not necessary to form a perforation in one surface of the encapsulating film corresponding to the front wall of the box. For this reason, the multi-pack package of the present invention has no fear that the encapsulated film will be easily broken even if foreign matter comes into contact with it during the distribution process.

  In a preferred multipack package of the present invention, the envelope film has a position corresponding to the second ridge line of each box on the lower side of the front wall of each box or a position corresponding to the vicinity of the second ridge line. An opening perforation is formed.

  In the preferred multipack package of the present invention, the opening perforation of the enveloping film corresponds to the first ridge line of each box or the vicinity of the first ridge line, and the second ridge line of each box or Each is formed at a position corresponding to the vicinity of the second ridge line. For this reason, the folding force is concentrated on the film portions of the first ridge line and the second ridge line by folding the accumulation body so that the front wall of each box is folded, and formed corresponding to the first ridge line and the second ridge line. The encapsulated film is broken at the opening perforation. As a result, the encapsulating film can be torn along the joint surface of the box, and the box can be divided individually.

  In the multipack package according to the present invention, a plurality of boxes are integrally packaged by a film to be wrapped. Since the perforation for opening is formed at the position corresponding to the first ridge line of the box or the vicinity thereof in the envelope film of the multipack package, the front wall of the box or the integrated body is pressed. By folding, the encapsulating film can be torn through the opening perforation and each box can be divided.

Hereinafter, a multipack package according to a preferred embodiment of the present invention will be described with reference to the drawings.
Each surface of the box is called “front wall”, “back wall”, “upper wall”, etc., but these are names used to distinguish the surfaces of the box and have a meaning other than this purpose. Absent. For example, the front wall refers to an arbitrary surface of the box, and the “back wall” refers to a surface facing the “front wall”.
In FIGS. 1 to 3 and 5, since the box (stacked body) is encapsulated by the film to be wrapped, the box (stacked body) should be illustrated by a broken line. For the sake of convenience, the box (accumulated body) is shown by a two-dot chain line.

In FIG. 1 to FIG. 3, a multi-pack package 1 includes a stack 3 in which a plurality of boxes 2 are adjacent, and an encapsulating film 5 that encloses the periphery of the stack 3 in a substantially sealed manner. Have
The box body 2 is formed in a hollow shape having a storage portion formed therein, and food is stored in the storage portion. The box body 2 has a rectangular front wall 21, and another surface wall is connected to the front wall 21 to form a hollow three-dimensional shape.
The accumulation body 3 is obtained by accumulating a plurality of the box bodies 2 containing foods so that the front wall 21 of the box body 2 is on the same plane. A plurality of box bodies 2 are integrally packaged by heat-shrinking a heat-shrinkable encapsulating film 5 around the integrated body 3. Such an encapsulating film 5 is generally called an overlap film.
The envelope film 5 has at least a sewing machine for opening at a position corresponding to the first ridge line 61 of each box 2 on the upper side of the front wall 21 of each box 2 or a position corresponding to the vicinity of the first ridge line 61. Eyes 7 are formed.
Hereinafter, a preferred embodiment of the multipack package 1 of the present invention will be described while being divided for each component.

The box 2 includes a front wall 21, a rear wall 22, an upper wall 23, a lower wall 24, and both side walls 25 (hereinafter referred to as a front wall 21, a rear wall 22, an upper surface) formed in a rectangular shape (rectangular shape or square shape). The wall 23, the lower surface wall 24, and the side wall 25 are collectively referred to as “each surface wall”).
The upper side of the front wall 21 and one side of the upper surface wall 23 are connected in a substantially right angle, and a first ridge line 61 is formed on the upper side of the front wall 21.
The lower side of the front wall 21 and one side of the lower surface wall 24 are connected in a substantially right angle, and a second ridge line 62 is formed on the lower side of the front wall 21.
The upper side of the back wall 22 and the other side of the upper surface wall 23 are connected in a substantially right angle, and a third ridge line 63 is formed on the upper side of the back wall 22.
The lower side of the back wall 22 and the other side of the lower wall 24 are connected in a substantially right angle, and a fourth ridge line 64 is formed on the lower side of the back wall 22.
Similarly, the sides of the front wall 21 and the back wall 22 and the sides of the both side walls 25 are connected in a substantially right angle to form ridge lines.
Therefore, the box body 2 is formed in a hollow rectangular parallelepiped shape in which the respective wall surfaces are connected to each other at substantially right angles.

Each face wall of the box 2 has flexibility. Therefore, when each face wall of the box 2 is pressed, each face wall can be deformed into a curved shape.
The box 2 may be constituted by, for example, a box-shaped container (a so-called caramel box or a so-called brick pack) in which a sheet material is formed into a predetermined shape and assembled into a hollow rectangular parallelepiped shape, or Alternatively, it may be composed of a synthetic resin injection molded product or a sheet molded product (so-called molded container).
The sheet material is not particularly limited, and is made of paper, polyolefin such as polyethylene, polyester resin such as polyethylene terephthalate, laminated sheet of paper and synthetic resin sheet, synthetic resin sheet and metal vapor deposition layer. A laminated sheet or the like can be used.

The food stored in the box 2 is not particularly limited, and examples thereof include sweets, seasonings, instant foods, dried foods, solid foods such as coffee beans, beverages such as juices, and liquid foods such as nutritional supplement fluid foods. It is done.
When solid food is stored in the box 2, the box 2 is preferably composed of a so-called caramel box or a so-called molded container.
When liquid food is stored in the box 2, the box 2 is preferably configured in a so-called brick pack mode.

A plurality of (for example, three) box bodies 2 are joined to each other in a row by joining the side walls 25 of the respective box bodies 2 to form an integrated body 3.
In such an integrated body 3, the front wall 21, the back wall 22, the upper wall 23 and the lower wall 24 of each adjacent box 2 are on the same plane, and the first ridge line 61 to the fourth ridge line 64 of each box 2 are respectively It has a long and narrow rectangular parallelepiped shape.

An enveloping film 5 is covered by heat shrinkage around the entire circumference of the integrated body 3.
As the encapsulating film 5, a heat-shrinkable film having a property (heat-shrinkable) that can be shrunk by heating to a predetermined temperature (for example, 70 ° C. to 100 ° C.) is used. Further, the encapsulating film 5 is preferably a heat-shrinkable film that can be heat-welded. As the heat-shrinkable film, for example, a biaxially stretched polypropylene film or a polyethylene film can be used. The thickness of the film is usually about 10 to 40 μm.
Moreover, although the transparent film 5 is normally used for the enveloping film 5, it is not limited to this, It may be colored or printing may be given.

On the enveloping film 5, opening perforations 7 are respectively formed at positions corresponding to the first ridge line 61, the second ridge line 62, the third ridge line 63, and the fourth ridge line 64 of each box 2.
The opening perforation 7 corresponds to the vicinity of the first ridgeline 61, the second ridgeline 62, the third ridgeline 63, and the fourth ridgeline 64 of each box 2 of the enveloping film 5. It may be formed in the position to do. It may be difficult in practice to accurately form the opening perforation 7 at positions corresponding to the first ridge line 61, the second ridge line 62, the third ridge line 63, and the fourth ridge line 64 of each box body 2. Because. Further, since a plurality of opening perforations 7 may be formed corresponding to one ridge line, it is not possible to accurately form all of the plurality of opening perforations 7 at positions corresponding to the respective ridge lines. It is difficult.
The “vicinity” of the first ridgeline 61 to the fourth ridgeline 64 includes a range within 5 mm from each ridgeline.
For easy understanding, the range in which the opening perforation 7 is formed is indicated by hatching in FIG. 1 only.

Here, the perforation is a line in which through holes (circular through holes or linear through holes) penetrating in the thickness direction of the encapsulating film 5 are intermittently engraved, such as a stitch mark of a sewing needle. It is. That is, the perforation is a line formed by alternately connecting the through holes 71 and the non-penetrating portions 72 as shown in FIG.
The opening perforation 7 is formed so that the direction A in which the through holes are continuous is substantially parallel to each of the ridge lines 61 to 64 (see FIG. 1).
The opening perforation 7 has a length of the through-hole 71 (the length in the longitudinal direction when the through-hole is a straight cut; the diameter when the through-hole is circular; the same applies hereinafter), for example. , 0.1 mm to 2 mm, preferably 0.3 mm to 0.5 mm. Further, the opening perforation 7 is formed such that the length of the non-penetrating portion 72 is, for example, 0.5 mm to 5 mm, and preferably 1 mm to 3 mm.
The opening perforation 7 is formed so that the longitudinal direction of the linear through hole 71 is substantially perpendicular to the direction A where the through holes are continuous when the through hole 71 is a straight cut. Alternatively, the linear through holes 71 may be formed so that the longitudinal direction thereof is substantially parallel to the direction in which the through holes are continuous (not shown). Preferably, as shown in FIG. 4, the longitudinal direction of the linear through hole 71 is formed so as to be substantially orthogonal to the direction A in which the through holes are continuous. The enveloping film 5 on which the opening perforation 7 composed of the through holes 71 as shown in FIG. 4 is formed is easily torn in a direction substantially perpendicular to the direction A where the through holes are continuous. Therefore, the multi-pack package 1 encapsulated by the encapsulating film 5 in which the opening perforation 7 is formed is obtained by folding the integrated body 3 from above the encapsulating film 5 at the time of opening. 5 can be reliably torn along the joint surface of the box 2.
Furthermore, the opening perforations 7 may be formed in one row for each corresponding ridgeline (see FIG. 4A). Further, the opening perforation 7 may be formed adjacent to a plurality of rows (for example, 3 rows) for each corresponding ridgeline (see FIG. 4B).
In the case where a plurality of rows of opening perforations 7 are formed for each corresponding ridgeline, the row interval M between adjacent perforations is, for example, 0.5 mm to 5 mm, preferably 0.5 mm to 2 mm. Is done.
Further, when a plurality of rows of perforations 7 for opening are formed for each corresponding ridgeline, the overall width N of the perforations formed of a plurality of rows is, for example, 3 mm to 10 mm, and preferably 3 mm to 6 mm.

The multi-pack package 1 can be obtained by encapsulating a heat-shrinkable film in which each opening perforation 7 is formed around the assembly 3.
Specifically, the heat-shrinkable film constituting the encapsulating film 5 is made so that each opening perforation 7 corresponds to the first ridgeline 61 to the fourth ridgeline 64 of each box 2 constituting the accumulation body 3. While aligning, a cylindrical shape is formed so as to wrap up the integrated body 3, and both end portions of the heat-shrinkable film are overlapped, and the overlapped portion is heat-welded in a line shape in the longitudinal direction. Next, both sides of the cylindrical heat-shrinkable film are heat-cut in the width direction to form a three-way heat-welded film bag, and then the heat-shrinkable film is heat-shrinked. Due to the heat shrinkage, the enveloping film 5 comes into close contact with the periphery of the integrated body 3 in a state where the opening perforation 7 corresponds to the first ridgeline 61 to the fourth ridgeline 64 of each box 2. Thus, the multipack package 1 as shown in FIGS. 1 to 3 can be obtained. In FIG. 1 to FIG. 3, the light-inked portion indicates the welded portion of the heat-shrinkable film.

The multipack package 1 is provided for distribution. Since the box 2 has flexibility, the box 2 can be deformed when a foreign object comes into contact with the multipack package 1 in the distribution process. Although the ridge line portion of the box body 2 is difficult to deform, in particular, each wall surface of the box body 2 is easily deformed by the contact of foreign matter.
In the multi-pack package 1 of the present invention, since the opening perforation 7 is not formed on the enveloping film 5 corresponding to each face wall of each box 2, the foreign body comes into contact with the box 2 as described above. Even if each face wall is deformed, the encapsulating film 5 is not easily broken.
On the other hand, when each box 2 is divided from the multi-pack package 1, for example, as shown in FIG. 5, the front wall 21 of the box 2 on one side is based on the joining surface of any box 2. And holding the back wall 22 with one hand from above the encapsulating film 5, holding the front wall 21 and the back wall 22 of the other side box 2 with the other hand from above the encapsulating film 5, and using both hands, the front wall 21 By bending the integrated body 3 so as to bend, the tensile force concentrates on the film portions of the first ridge line 61 and the second ridge line 62, and the upper and lower sides of the front wall 21 of the box 2 (the first ridge line 61 and the second ridge line 61). The corner 2a of the box 2 hits the opening perforation 7 formed corresponding to the ridgeline 62). As a result, the encapsulating film 5 is broken starting from the opening perforation 7, the encapsulating film 5 is torn along the joint surface of the box 2, and the box 2 can be divided individually.

  In addition, when each box 2 is divided from the multipack package 1, the front wall 21 of the box 2 may be strongly pressed from above the encapsulating film 5. Thus, even if the front wall 21 of the box 2 is strongly pressed from the top of the encapsulating film 5, the tensile force is concentrated on the film portions at positions corresponding to the first ridge line 61 and the second ridge line 62 of the box 2. The perforation 7 for opening breaks and the encapsulating film 5 can be torn.

In the above-described embodiment, an example in which three box bodies 2 are adjacent to each other as an integrated body 3 is illustrated. However, an integrated body 3 in which two or four or more box bodies 2 are adjacent to each other is encapsulated with an encapsulating film 5. May be.
Furthermore, in the said embodiment, although the rectangular parallelepiped thing was illustrated as the box 2, the box 2 is not restricted to a rectangular parallelepiped shape, For example, a hexagonal column shape etc. may be sufficient, or a gable top type etc. may be sufficient.

  Moreover, in the said embodiment, although the perforation 7 for opening is each provided in the position corresponding to each ridgeline of the 1st ridgeline 61-the 4th ridgeline 64 of the box 2, the perforation 7 for opening is at least It may be provided at a position corresponding to the first ridge line 61 or the vicinity thereof. However, the opening perforation 7 is provided at least at a position corresponding to the first ridge line 61 and the second ridge line 62 (ridge lines formed on the upper and lower sides of the front wall 21 of the box body 2) or the vicinity thereof. It is preferable.

The perspective view which looked at the multipack packing object concerning one embodiment of the present invention from the front wall side of a box. However, the hatched portion indicates the range where the perforation for opening is formed, and the light-inked portion indicates the welded portion of the heat-shrinkable film. The perspective view which looked at the multipack package from the back wall side of the box. However, the lightly ink-painted portion indicates the welded portion of the heat-shrinkable film. The perspective view which looked at the multipack package from the lower surface wall side of the box. However, the lightly ink-painted portion indicates the welded portion of the heat-shrinkable film. (A) is a reference top view which shows the perforation for opening formed in 1 row, (b) is a reference top view which shows the perforation for opening formed in 2 rows. The side view which looked at the state which opened the enveloping film of the multipack package body from the lower surface side of the box.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Multipack package body, 2 ... Box body, 21 ... Front wall, 3 ... Accumulation body, 5 ... Covered film, 61 ... 1st ridgeline, 62 ... 2nd ridgeline, 7 ... Perforation for opening

Claims (2)

An integrated body in which foods are stored and a plurality of boxes each having a rectangular front wall are stacked adjacent to each other so that the front walls are on the same plane, and encapsulated by thermal shrinkage around the integrated body A multi-pack package having an encapsulated film,
In the enveloping film, opening perforations are formed at positions corresponding to the first ridge line of each box or the vicinity of the first ridge line on the upper side of the front wall of each box. Multi-pack package characterized by.   The opening film perforation is formed in the said film at the position corresponding to the 2nd ridgeline of each box in the lower side of the front wall of each box, or the position corresponding to the vicinity of the 2nd ridgeline. Item 5. The multipack package according to item 1.

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