JP2003011961A - Packaging container - Google Patents

Abstract

(57) [Problem] To provide a packaging container having a perforated line which can perform opening operation easily and skillfully and has strength retention that is not unintentionally opened except during use. A rectangular cylindrical packaging container comprising a pair of opposed surface plates, and side plates, a top plate, and a bottom plate connected to the side edges and the upper and lower edges via folding curves, respectively. A semicircular knob at the center of the upper side of the face plate, a cut line composed of a plurality of cuts is also formed at the bent portion of the upper side, and a plurality of arc-shaped cuts near the top of the semicircular knob, In addition to providing a plurality of linear cuts in the adjacent circumference,
A packaging container, characterized in that a substantially L-shaped cut formed by a short side and a long side is continuously provided in the folded curve portion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for storing bag-packaged foods, confectionery, etc., and to a rectangular cylindrical packaging container having an opening means provided at a top plate portion as an outlet thereof.

[0002]

2. Description of the Related Art In this type of rectangular tubular packaging container,
As a means for opening the top plate portion that is the lid body, a fold line portion on the upper side of the surface plate that is in contact with the top plate and a finger hooking notch portion that is formed so as to be connected to the top plate portion are cut lines that are continuous cut lines. Those provided with are generally known. In the case of the container of such a form, when the container is used, first, the cut portion is crushed, and then the cut portion is put with a finger to pull and cut along the cut line of the curved folding portion. Is opened and the contents are taken out.

[0003]

However, since the perforation line in the container of the above-mentioned form is usually composed of perforations consisting of uniform and short linear cuts,
It takes a considerable force to push and break the cut portion with a finger, and in some cases, the cut portion may not be cut off properly when the push and tear is done with care. If the cutting of the cut portion is incomplete, there is a problem that the cutting of the top plate portion along the cutoff line of the folding curve portion is not smoothly performed. To solve this,
If the length of the cut line in the cut line is increased, the separation strength is lowered, and the cut breaks during transportation and transportation to open the package, which causes a problem that the original function of the packaging container cannot be maintained.

The present invention focuses on improving the cut shape of the cut line in the conventional packaging container described above, and it is easy to separate the cut portion which is a clue to the opening, and the subsequent opening operation of the top plate portion is also possible. It is an object of the present invention to provide a packaging container having a cut line having a cut shape that can be easily and efficiently performed and also has strength retention that does not open unintentionally except when in use.

[0005]

[Means for Solving the Problems] A structure for achieving the above-mentioned object is a rectangular tubular package comprising a pair of facing surface plates and connecting side and upper sides thereof through folding curves. A container, a semi-circular knob part at the center of the upper side of one of the surface plates, a cut line consisting of a plurality of cuts is also formed in the folding curve part of the upper side, and near the top of the semi-circular knob part. Is a plurality of arc-shaped cuts, a plurality of linear cuts are provided in adjacent circumferential circles, and a substantially L-shaped cut having a short side and a long side is continuously provided in the bent line portion. It is a packaging container characterized by that.

Furthermore, the short side of the substantially L-shaped cut of the cut line forming the folding curve portion is 25 with respect to the long side of the substantially L-shaped cut in the region adjacent to the end of the cut line of the semicircular knob.
The length is ˜45%, the length is 50% to 70% of the long side in the region away from the end of the cut line of the semicircular knob, and the long side of the substantially L-shaped cut is The packaging container is characterized in that a short connecting portion is provided at a substantially central portion thereof.

[0007]

In the packaging container having the above structure, the arc-shaped long cut provided near the top of the cut line in the knob has a small cutting strength, and the straight short cut provided in the circumferential circle adjacent thereto. Has a relatively high cutting strength. Therefore, the long cut near the top of the cut line can be easily pushed down with a small amount of finger pressure, and if a finger is put on the broken pick and pull it, the resistance of the adjacent short linear cut will be pushed away. It is cut off, and it is cut off at once along a substantially L-shaped cut line continuously provided on the fold curve between the top plate and the top plate. Therefore, the opening operation of the top plate portion can be performed easily and smoothly. In addition, with respect to the arc-shaped long cut near the top of the cut line, the resistance is held by the linear short cut provided on the adjacent circumferential part, and the failure caused by the tear of the picking part is the beginning. Accidental opening accidents can be prevented.

Further, in the substantially L-shaped cut line of the cutoff line formed on the fold curve of the surface plate, the length of the short side with respect to the long side thereof is configured to increase as it approaches the end of the cutoff line. Therefore, when the top plate is opened, the tearing force applied along the perforation line weakens as it approaches the end of the perforation line, and even if blurring occurs in the breaking direction, it is allowed by the long short side shape to ensure the tearing force. To facilitate opening.

Further, by providing a short connecting portion at a substantially central portion of the long side of the substantially L-shaped cut, it is possible to increase the length of the long side portion and to provide easy tearing. The connecting portion serves to prevent the strength from being reduced.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the structure of a packaging container according to an embodiment of the present invention, and FIG. 2 is a development view showing a blank state thereof.

As shown in the drawing, two facing surface plates 1,
2 and side plates 3, 4 and top plates 1a, 2a and bottom plates 1b, 2b which are connected to the side and upper and lower sides through folding curves respectively. The upper and lower sides of the side plates 3, 4 are connected through folding curves. The joining pieces 5 are connected to the folding pieces 3a, 4a and 3b, 4b and the other side of the side plate 1 via a folding curve.

A semi-circular knob 6 is formed at the center of the upper side of the surface plate 2 by a cut line P, and further, from both ends of the cut line P along the fold line h of the upper side of the surface plate 2, the end part thereof is formed. Up to the cut line Q, respectively.

A plurality of arcuate cuts p ₁ are provided near the top of the cutoff line P, and a plurality of linear cuts p ₂ are provided at adjacent circumferential circles at predetermined intervals. Is a substantially L-shaped cut q ₁ in which the long side m extends on the folding curve h and the short side n extends from the end of the long side to the top plate 2a side.
Are provided with a predetermined interval.

The surface plates 1 and 2 and the side plates 3 and 4 are bent along the folding curves formed on the sides thereof, and the joining piece 5 is joined to the side plate 4 to form the body of the container.
Further, in the top plate portion of the container, the top plate 2a and the folding pieces 3a and 4a are sequentially bent through the folding curve h of the upper side of the front plate and the side plate, and the top plate 1a is joined to the top plate 2a. The bottom plate is connected to the bottom plate 2 through the folding curve g on the lower side of the front plate and the side plate.
b, the folding pieces 3b, 4b are sequentially bent, and the bottom plate 1b is joined to the bottom plate 2b to form the rectangular cylindrical container shown in FIG.

As a concrete construction of the container, the picking portion 6 preferably has a radius of 13 to 20 mm, and if it is less than 13 mm or more than 20 mm, it is difficult to push it with a finger.

The cut lines p ₁ and p ₂ of the cut line P forming the knob portion are provided at intervals of 1.0 to 2.0 mm, and the length of the arcuate cut p ₁ near the top is 10 to _1.
It is preferable that the length of the linear cut p ₂ is 5 mm, and the length thereof is in the range of 2.0 to 4.0 mm. or,
The substantially L-shaped cut q _{1 on} the cut line Q is 2.0 to
It is provided at intervals of 4.0 mm and the length of the long side m is 4.
It is preferable that the length is 0 to 8.0 mm, and the angle formed by the long side m and the short side n is set within the range of about 110 to 150 °.

As an embodiment of the present invention, FIG.
As shown in FIG.
In the character-shaped cut, the short side n ₁ of the cut q ₁ in the region adjacent to the end of the cut line Q is 25 to 25 with respect to the long side m.
The length is 45%, and the short side n ₂ of the cut line q _{2 in} the region away from the end of the cutoff line Q is set to 50 to 70%. Furthermore, as another embodiment of the present invention,
As shown in FIG. 4, in the substantially L-shaped cut of the cutoff line Q, a short connecting portion q ₃ of 0.5 to 1.5 mm is provided at a substantially central portion of the long side m.

[0019]

As described above, according to the packaging container of the present invention, the shape or the length of the cut line formed on the pick portion is changed, and the packaging line is formed on the folding curve of the face plate. Similarly, in the substantially L-shaped cut line of the cutoff line, by the configuration in which the length of the short side with respect to the long side thereof is changed, the unsealing operation can be easily and surely performed, and it can be performed only when it is used. It is possible to obtain a packaging container that also has strength retention without being opened easily.

[Brief description of drawings]

FIG. 1 is a perspective view of a packaging container that is an embodiment of the present invention.

FIG. 2 is a development view showing a blank state in the packaging container of FIG.

FIG. 3A is a diagram showing a configuration of a cutoff line portion of a packaging container according to another embodiment of the present invention, and FIG. 3B is an explanatory diagram showing an enlarged dotted line portion thereof.

FIG. 4A is a view showing a configuration of a cut line portion of a packaging container which is another embodiment of the present invention, and FIG. 4B is an enlarged view of a configuration of a cut line in the dotted line portion of the above (A). It is an explanatory view shown.

[Explanation of symbols]

1,2 ... surface plate, 3,4 ... side plate, top plate ... 1a, 2a, bottom plate ... 1b, 2b, 5 ... joining pieces, 6 ... knob, P ... cutoff line, p _1, p ₂ ... cuts, Q ... Cutoff line, q ₁ , q ₂ ... Cut line,
m ... long side, n ... short sides, q 3 _... connection portion,

Claims (3)

[Claims] 1. A rectangular cylindrical packaging container comprising a pair of facing surface plates, a side plate, a top plate, and a bottom plate which communicate with the side edges and the upper and lower edges through folding curves, respectively. A semi-circular knob is formed in the center of the upper side of the face plate, and a cut line consisting of a plurality of cuts is also formed in the bent line of the upper side, and a plurality of arc-shaped cuts are provided near the top of the semi-circular knob. ,
A packaging container, characterized in that a plurality of linear cuts are provided in adjacent circumferential circles, and a substantially L-shaped cut having a short side and a long side is continuously provided in the folding line section. 2. The short side of the substantially L-shaped cut of the cut line that constitutes the folding curve portion is 25 with respect to the long side of the substantially L-shaped cut in a region adjacent to the end of the cut line of the semicircular knob portion. ~ 45
The packaging container according to claim 1, wherein the packaging container has a length of 50% to 70% of the long side in a region distant from the end of the cut line of the semicircular knob portion. 3. The packaging container according to claim 1, wherein the long side of the substantially L-shaped cut has a short connecting portion provided at a substantially central portion thereof.