JP2001261056A - Shrink packaging body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shrink packaging body of a simple structure for easily removing a shrink film. SOLUTION: The shrink packaging body is provided with a shrink film 3 so fitted as not to separate respective single material 21 at least on the outer peripheral face of a material 2 to be packaged formed of a plurality of single materials 21 laminated in multi-stages, and perforations 5 are formed into a sharp angle in the longitudinal direction X of the material 2 to be packaged on the shrink film 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shrink package in which objects to be packaged such as cans, bottles, cups and the like are packaged with a shrink film.

[0002]

2. Description of the Related Art
As means for integrating a plurality of cans and the like, a plurality of cans are stacked in multiple stages to form a cylindrical body, and a shrink film (heat-shrinkable film) is attached around the cylindrical body in a covering state. With such a shrink package,
A plurality of objects can be integrated without using an adhesive or the like. Further, at the time of opening, by cutting the shrink film with a cut tape previously adhered to the back surface of the shrink film, the integrated components can be easily separated.

[0003] However, in this type of shrink package, since it is opened with a cut tape, a shrink film to which the cut tape has been adhered must be used, which raises a problem that the film cost increases. is there. Also, since the end of the cut tape is small,
It may be difficult to pinch and open it.

An object of the present invention is to provide a shrink wrapper having a simple structure and capable of easily removing a shrink film.

[0005]

According to the present invention, as a means for solving the above-mentioned problems, each single object is provided on at least the outer peripheral surface of a packaged object 2 in which a plurality of single objects 21 are stacked in multiple stages. 21 is a shrink package in which a shrink film 3 is mounted so as not to separate from each other, and a perforation 5 is formed on the shrink film 3 at an acute angle with respect to a longitudinal direction X of the article 2 to be packaged. A shrink package is provided.

Further, the present invention is a shrink package in which a shrink film 3 is mounted on an outer peripheral surface of the package 2, wherein perforations 5 are formed on the shrink film 3 in a longitudinal direction X of the package 2. A shrink package formed at an acute angle is provided.

The outer shape of the article to be packaged 2 is preferably substantially cylindrical. Further, it is preferable that the perforation 5 is formed so as to reach at least one of the upper edge 3a and the lower edge 3b of the shrink film 3. Further, a cut 6 is formed at at least one of the upper edge 3a and the lower edge 3b of the shrink film 3 as a cleavage starting point, and the perforation 5 is formed to reach the cut 6. Is preferred.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a shrink wrapper according to the present invention will be described below. In FIG. 1, 1
Shows a shrink package in which the shrink film 3 is mounted so as to cover the outer peripheral surface of the article 2 to be packaged.

As shown in FIG. 2, the packaged object 2 is composed of an aggregate of a plurality of (three in the figure) single objects 21,..., And has a columnar shape as a whole. Specifically, a cylindrical (particularly cylindrical) single object 21 (for example, a canned product or a juice can) is brought into contact with the end faces 21a thereof and simply stacked to form a substantially cylindrical (particularly substantially cylindrical) part. An article to be packaged 2 (aggregate) is configured. Therefore, when an external force is applied to the packaged object 2, the individual objects 21,... Can be displaced from each other.

The shrink film 3 is made of a known heat-shrinkable synthetic resin film, and is formed in a tubular shape so that it can be inserted into the package 2. In the shrink film 3, perforations 5 are formed obliquely. Specifically, a cut 6 is formed at a part of the upper edge 3a of the shrink film 3 as a cleavage starting point 6, and a perforation 5 'is extended from a pointed portion 6a of the cleavage starting point 6; The perforation 5 ′ is formed to be at an acute angle with respect to the longitudinal direction X or the upper edge 3 a of the package 2. The pointed portion 6a of the cut 6 is formed so as to reach the outer peripheral surface of the article to be packaged 2 so that the shrink film 3 can be easily opened along the perforations 5.

Furthermore, the lower edge 3b of the shrink film 3
A cut 7 is similarly formed as a cleavage starting point 7 at a part (non-opposing position) of the part that is displaced from the cleavage starting point 6 formed on the upper edge 3a. Perforation 5 ″ in the direction from the tip of
Has been extended. The perforations 5 ″ are
Is formed so as to be at an acute angle with respect to the longitudinal direction X or the lower edge 3b, and a perforation 5 ″ formed from the lower edge 3b.
And the perforations 5 ′ formed from the upper edge 3 a coincide with each other on the way, thereby forming one oblique perforation 5 as a whole. The angle at which the perforations 5 are formed is not particularly limited, but if it is too perpendicular to the longitudinal direction X or too parallel to the longitudinal direction X, there is no effect.
It is preferably about 75 degrees, and more preferably formed with an inclination of about 30 to 60 degrees. Further, the sizes of the plurality of perforations constituting the perforation 5 are not particularly limited.

The shrink film 3 is placed on the packaged object 2
The shrink film 3 is shrunk by heating so as to cover the outer peripheral surface of the package, and is mounted on the outer peripheral surface of the packaged object 2. Each single object 2 constituting the packaged object 2 in this manner
The integrated shrink wrapping body 1 is manufactured without leaving the same.

As shown in FIG. 3, the shrink wrapping body 1 is formed by gripping the upper and lower portions A and B in the longitudinal direction X by hand, and twisting (turning) around the longitudinal axis X in different directions. On the other hand, tensile forces (arrows C and D) opposite to the longitudinal direction X are applied to the shrink film 3 with the perforation 5 as a boundary. Since the perforation 5 is formed at an acute angle with respect to the longitudinal direction X,
Since these opposing tensile forces C and D act on the perforation 5 at an acute angle, the shrink film 3
Will be easily separated from Thus, the shrink wrapper 1 according to the present invention can be easily opened simply by twisting. The perforation 5 is
Since the cut 6 is formed up to the cut 6 formed on the upper edge 3a and the lower edge 3b of the shrink film 3, the cut 6
Serves as a cleavage starting point, and the shrink film 3 can be more easily divided. Furthermore, since the single objects 21 can be positioned relative to each other in the packaged object 2, when opening and closing, the upper and lower portions A and B of the shrink package 1 are gripped and twisted by hand as described above. Then, the single object 21 also rotates. Therefore, the shrink film 3 can be separated from the perforations 5 with a smaller force.

In the above embodiment, perforations 5
Are provided for the shrink film 3, but two or more (a plurality) may be provided. Further, for example, as shown in FIG. 4, two perforations 5, 5 may be provided to intersect. Further, in the above embodiment, the perforations 5 'reaching the upper edge 3a and the lower edge 5b
To form a single perforation 5, for example, as shown in FIG. 5, even if each perforation 5 is formed independently. The perforations 5 do not necessarily have to be formed from both the upper edge 3a and the lower edge 3b, and at least one of them may be formed. For example, it may be formed in a curved shape as shown in Fig. 5. In short, the perforation 5 is formed from the upper edge 3a and / or the lower edge 3b of the shrink film 3, or The shrink film 3 may be formed at a predetermined length (not limited to a straight line) at a position near the upper edge 3a and / or the lower edge 3b so as to be at an acute angle with respect to the longitudinal direction X.

Further, in the above-described embodiment, the packaged object 2 is composed of a collection of a plurality (two or more) of the single objects 21, but a single object may be used as the packaged object 2. In the above embodiment, the cut 6 is provided as a cleavage starting point, but the cut 6 is not an essential element of the present invention.

[0016]

As described above, according to the shrink package according to the present invention, the shrink film can be easily separated from the perforation by twisting the upper and lower ends in the longitudinal direction by hand. Therefore, it is possible to easily remove the shrink film and open the package. Furthermore, since a cut tape is not adhered and a perforated shrink film is used, a shrink package can be easily and inexpensively manufactured. Furthermore, in the case where a plurality of single objects are stacked in multiple stages, the single objects are displaced when the upper and lower ends in the longitudinal direction are twisted by hand. The shrink film can be further divided easily through the perforations.
Further, when the perforation is formed to reach at least one of the upper edge or the lower edge of the shrink film,
Since the stress concentrates on the upper end or the lower end, the shrink film is easily divided, and when a notch is provided as a floor crack starting point, the shrink film can be divided very easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a shrink package according to the present invention.

FIG. 2 is an exploded perspective view showing a state before a shrink film is attached to an article to be packaged.

FIG. 3 is a perspective view showing a situation when the shrink wrapper is opened.

FIG. 4 is a perspective view showing another embodiment of the shrink package according to the present invention.

FIG. 5 is a perspective view showing another embodiment of the shrink package according to the present invention.

[Explanation of symbols]

2 to be packaged, 3 to shrink film, 3a to upper edge,
3b: lower edge, 5: perforation, 6: cut, 21: single object,
X: longitudinal direction of the packaged item

Claims (5)

[Claims] 1. A shrink film (3) is provided on at least the outer peripheral surface of a packaged object (2) in which a plurality of single objects (21) are stacked in multiple stages so that each single object (21) does not separate. The shrink wrapping body mounted, wherein a perforation (5) is formed in the shrink film (3) at an acute angle with respect to a longitudinal direction (X) of the packaged object (2). Shrink wrapping characterized by: 2. A shrink package in which a shrink film (3) is mounted on an outer peripheral surface of a packaged object (2),
A shrink wrapper, wherein perforations (5) are formed in the shrink film (3) at an acute angle with respect to the longitudinal direction (X) of the article to be wrapped (2). 3. The shrink wrapper according to claim 1, wherein the outer shape of the wrapped object (2) is substantially cylindrical. 4. The perforation (5) is formed so as to reach at least one of an upper edge (3a) and a lower edge (3b) of the shrink film (3).
4. The shrink package according to any one of claims 1 to 3. 5. A cut (6) is formed at at least one of an upper edge (3a) and a lower edge (3b) of the shrink film (3) as a cleavage starting point, and the perforation is formed. The shrink package according to any one of claims 1 to 3, wherein (5) is formed so as to reach the cut (6).