JP2004168378A - Perforation line for carton - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide perforation lines for a carton that can be easily torn out, hardly reduce a strength of the carton and have such a shape as one in which the residual torn-out portions can be torn out in a clean state. <P>SOLUTION: Perforation lines for a carton of this invention have some features as follows. Major perforation lines and auxiliary perforation lines are arranged discontinuously along a seal opening direction; the major perforation lines are arranged discontinuously on their perforation lines with their spaces being applied as a clearance; a length of each of the major perforation lines is longer than that of the clearance; the auxiliary perforation lines are arranged discontinuously on the lines in parallel with the perforation lines; the clearance part is moved in parallel with the perforation lines and their both ends are extended. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a score line used for opening a carton.
[0002]
[Prior art]
Conventionally, in opening various cartons, in order to tear a necessary part of the carton, as shown in FIG. 7, a shape in which a discontinuous cut line is simply formed in a perforated shape, and an L-shape in which a straight end is bent. A shape with discontinuous cut lines, a shape with discontinuous cut lines that overlap the wave-shaped cut lines, and a double perforation where the perforations (cut lines) and the distance between them are equal There is a certain shape (for example, refer to Patent Document 1).
[0003]
[Patent Document 1]
JP-A-8-104378
[Problems to be solved by the invention]
However, these conventional carton break lines tend to be easily torn when the length of the cut line is increased and the length of the gap between the adjacent cut lines is reduced so that the carton is easily torn. There is a risk that the carton will be broken at the stage of opening when the strength is weakened, and conversely, if the gap is large, it will be difficult to tear, and it is difficult to form a shape that balances both functions There is. Further, after the cut line is torn from the carton, the cut line becomes jagged, and the appearance is not beautiful, and there is a problem that the finger or the like may be damaged or the contents may be damaged when the contents are taken out.
[0005]
The present invention for solving the above-mentioned problem can be easily torn even if it is started from either direction of both ends, and there is little reduction in the strength of the carton, and the remaining torn portion is in a beautiful state. It is an object of the present invention to provide a cut line for a carton having a shape that can be torn.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention includes a main cut line and an auxiliary cut line that are discontinuously arranged along the opening direction, and the main cut line is not formed on the cut line with a gap between the main cut lines. The main cut line is arranged continuously, and the length of the main cut line is longer than the length of the interval portion. The auxiliary cut lines are arranged discontinuously on a line parallel to the cut line, and the gap is moved in parallel. And a cut line for a carton characterized by having both ends extended. A feature of the present invention is that a jumpsuit is provided on the main cut line.
[0007]
ADVANTAGE OF THE INVENTION According to this invention, it can tear easily even if it starts from either direction of both ends, and the shape which can reduce the intensity | strength of a carton little, and can tear the remaining tear part in a beautiful state Cut line for carton can be obtained.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a break line for a carton of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view showing a cut line for a carton of the present invention, FIG. 2 is a partially enlarged plan view showing a cut line for a carton of the present invention, and FIG. 3 is a modified example of the cut line for a carton of the present invention. FIG. 4 is a partial enlarged plan view, FIG. 4 is a view for explaining the effect of the carton break line of the present invention, and FIG. 5 is a perspective view showing one embodiment of a carton using the carton break line of the present invention. FIG. 6 is a perspective view showing another embodiment of a carton using the carton break line of the present invention, and FIG. 7 is a plan view showing an example of a conventional carton break line.
[0009]
FIG. 1 is a plan view showing a cut line for a carton according to the present invention, and FIG. 2 is a partially enlarged view of the cut line for a carton.
[0010]
As shown in FIG. 1, the cut line P for a carton of the present invention has a shape capable of starting tearing from both directions. Further, a notch V such as a V-shape may be provided at the end of the cut line P so that the end is easily torn from the end.
[0011]
The cut line P is composed of a main cut line Q and an auxiliary cut line R as shown in FIG. The main cut line Q is provided discontinuously on a cut line X which is a line to be torn, and when a gap S is formed between adjacent main cut lines Q, the length of the main cut line Q It is preferable that the relationship between a and the length b of the gap S be a> 2b to 3b.
[0012]
On the other hand, the auxiliary cut line R is provided discontinuously in parallel with the cut line X at a predetermined distance d, and its position and shape are shifted in the outward direction parallel to the position of the gap S between the adjacent main cut lines Q. In this position, both ends are extended. Therefore, the length c of the auxiliary cut line R is longer than the length b of the gap S between the adjacent main cut lines Q, that is, c> b.
[0013]
Further, the shape of the main break line Q is basically a linear shape, but may be a shape in which both ends are bent to the auxiliary break line R side as shown in FIG.
[0014]
The basic shape of the auxiliary cut line R is a straight line shape, but as shown in FIG. 3B, a shape obtained by bending both ends to the main cut line Q side, or as shown in FIG. An arc shape concave to the line Q side can also be used.
[0015]
Further, it is preferable to provide a jumper W on the main break line Q as shown in FIG. The jumper W is provided substantially at the center of the main cut line P, and the width thereof can be appropriately set in a range of 0.1 to 1.0 mm. By providing the jumper W, it is possible to prevent the strength of the carton from being reduced without impairing the tearability of the carton cut line P.
[0016]
Next, the features of the carton break line P of the present invention will be described.
[0017]
In the case of the carton cut line P according to the present invention, as shown in FIG. 4, by providing the main cut line Q and the auxiliary cut line R, the auxiliary cut line for receiving the carton cut line P from any side can be received. Since the line R is waiting, the tear propagates reliably to the next main cut line Q, and opening along the cut line X is possible up to the last main cut line Q. Also, after opening the carton score line P, the remaining tearing portion (lower portion) is in a beautiful state.
[0018]
Further, by providing the jumper W substantially at the center of the main cut line Q, it is possible to prevent the carton cut line P from standing up in the sack sticking process, and to provide the carton cut line P by providing the carton cut line P. A decrease in strength can be prevented, and a force is gradually applied when tearing the carton cut line P, so that the carton cut line P can be smoothly torn as a whole.
[0019]
The cut line P for a carton of the present invention can be formed at each component of the structure constituting the carton, for example, any portion such as a top portion, a side portion, or a bottom portion. Further, in the side portion, it can be provided continuously over a part of the side panel (front panel) or all the side panels.
[0020]
【Example】
Next, the carton zipper of the present invention will be described in more detail with reference to examples.
[0021]
<Example 1>
FIG. 5 is a perspective view showing an embodiment of the cut line P for a carton of the present invention. The cut line P1 for a carton is an example formed over the front panel 12 and the side panels 11 and 13 of the carton C1. is there. As shown in FIG. 5, the carton C1 is composed of a top panel 15, a side panel 11, a front panel 12, a side panel 13, a rear panel 14, and a bottom panel 16, and the cut line P1 for the carton is changed to the front panel of the carton C1. 12, and carton break lines P <b> 2 are provided on both side panels 11 and 13 in an oblique direction. In order to open the carton C1, first, a part of the carton cut line P1 of the front panel 12 is pushed to tear, and the whole part is torn open with the part as a hook, and the carton for the side panels 11, 13 is opened. By tearing the cut lines P2 and P2, the upper part of the carton C1 was divided and opened as a lid. The tearing portion of the lower portion of the carton 1 after opening was in a beautiful state.
[0022]
<Example 2>
FIG. 6 is a perspective view showing another embodiment of the cut line P for a carton of the present invention. This cut line P3 for a carton is an example formed on the top panel 15 of the carton C2. As shown in FIG. 6, the carton C2 is composed of a top panel 15, four side panels 11, 12, 13, 14 and a bottom panel 16, and the carton cut lines P3 are arranged in two rows to form a band. , Provided across the top panel 15 of the carton C2. By opening the band along the carton cut line P3, the top of the carton C2 could be opened. The remaining part after opening was clean with little jaggedness.
[0023]
【The invention's effect】
The cut line for carton of the present invention, in various cartons, can easily tear the cut line, can be stably torn along the cut line to the end, and less reduce the strength of the carton, This has the effect that the part after the tearing can be neatly and smoothly torn.
[Brief description of the drawings]
FIG. 1 is a plan view showing a cut line for a carton of the present invention.
FIG. 2 is a partially enlarged plan view showing a cut line for a carton of the present invention.
FIG. 3 is a partially enlarged plan view showing a modified example of the break line for a carton of the present invention.
FIG. 4 is a view for explaining the effect of the carton break line of the present invention.
FIG. 5 is a perspective view showing one embodiment of a carton using the cut line for carton of the present invention.
FIG. 6 is a perspective view showing another embodiment of the carton using the cut line for carton of the present invention.
FIG. 7 is a plan view showing an example of a conventional carton break line.
[Explanation of symbols]
P Cut line for carton Q of the present invention Q Main cut line R Auxiliary cut line S Gap portion X Cut line V Cutout W Jumpsuit C1 Carton C2 Carton a Main cut line length b Gap length c Length of auxiliary cut line D Distance between the main cut line and the auxiliary cut line 11 Top panel 12 Side panel 13 Side panel 14 Side panel 15 Side panel 16 Bottom panel

Claims (2)

Consisting of a main cut line and an auxiliary cut line arranged discontinuously along the opening direction, the main cut lines are discontinuously arranged on the cut line with a gap between them, and the length of the main cut line is The length of the gap is longer than the length of the gap, and the auxiliary cut lines are discontinuously arranged on a line parallel to the cut line, the gap is moved in parallel, and both ends are extended. And carton for cut line. The cut line for a carton according to claim 1, wherein the main cut line is provided with a jumper.

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