JP2002104398A - Tear strip for paper material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a tear strip serving as an opening means for a paper box, etc., to be torn in both directions. SOLUTION: Two cut rows 1 are made parallel to each other, each of the cut rows 1 is formed in such a manner that straight cuts 2 and valley-shaped cuts 3 are alternately intermittently arranged, and the straight cuts 2 are located inside both ends of the cut 3. Because a tear made at the end of the cut 2 or the cut 3 on this side reaches the next cut 3 or the next cut 2 even when the tear strip is torn in either direction, each cut row 1 is continuously cut, a paper material can be cut without being torn off between the cut rows 1, and delamination is made hard to cause.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tear band used as an opening means for a paper box or the like.

[0002]

2. Description of the Related Art Conventionally, a tear band called a zipper is sometimes provided as a means for opening a paper box or the like. As shown in FIG. 17, the tear band has two cut lines 81 arranged in parallel, and each cut line 81 has a cut 84 in which an inward portion 83 is continuously provided at one end (the left end in this figure) of an outer side portion 82. Is intermittent.

[0003] In this tear band, one side (in this figure, left side)
When the sheet is torn from the front side, the tear that tends to deviate inward from the tip of the outer edge 82 of the front cut 84 reaches the inward part 83 of the next cut 84, and the paper material can be cut without breaking the gap between the cut rows 81.

[0004]

However, if the tear band as described above is to be torn from the opposite direction, the gap between the cut lines 81 may be broken, and the paper material may not be cut.

Accordingly, an object of the present invention is to make it possible to tear a tear strip used as an opening means for a paper box or the like from both directions.

[0006]

In order to solve the above-mentioned problems, according to the present invention, in a tear strip in which a plurality of cut lines are arranged in parallel, a tear generated from the front end of a cut in front of the tear line, regardless of the direction of tearing in any direction. To reach the cut.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In the first embodiment shown in FIG. 1, two cut lines 1 are arranged in parallel, and each cut line 1 is formed by alternately intermittently cutting straight cuts 2 and arc-shaped valley cuts 3. I have.

Then, in each row of cuts 1, a straight cut 2
Are located inside both ends of the valley cut 3, and the valley cut 3 is provided with a connecting portion 4 for reinforcement.

In this tear band, as shown in FIG. 2, a tear generated from the front end of a straight cut 2 or a valley cut 3 in front of the next valley cut 3 or a straight cut 2 , Each cut line 1 is cut continuously, the paper material can be cut without being cut off between the cut lines 1, and surface layer peeling hardly occurs.

It should be noted that the valley-shaped cuts 3 can be formed not in an arc shape as shown in the figure, but also in a folded line shape, whereby the effect of preventing breakage and surface layer separation can be obtained. Further, the connecting portion 4 may be omitted.

Next, in the second embodiment shown in FIG. 3, two cut lines 11 are arranged in parallel, and each cut line 11 has a short side 13 at one end of a long side 12 and a jumping up at the other end. The cuts 15 formed by connecting the zigzags 14 in a zigzag manner are intermittent. The ends of the short sides 13 of the adjacent cuts 5 are located inside the ends of the jumping parts 14.

In this tearing band, as shown in FIG. 4, the short side 1
3 or a rip that is deviating inward from the tip of the jump portion 14 reaches the jump portion 14 or the short side portion 13 of the next cut 15, so that each cut row 11 is cut continuously and cut between the cut rows 11. Paper material can be cut without the need.

Subsequently, in the third embodiment shown in FIG.
The row of cut lines 21 is parallel to each other, and each row of cut lines 21 has a chevron 22
A cut 24 in which jump portions 23 are continuously provided at both ends of the cut portion 24 is intermittent, and the tips of the jump portions 23 of adjacent cuts 24 are close to each other.

In this tear band, as shown in FIG. 6, even if the tear band is torn from any direction, the jumping part 2
The breach from the tip of 3 is the jump 23 of the next cut 24
, Each cut line 21 is cut continuously, and the cut line 2
The paper material can be cut without breaking into pieces between one.

Further, in the fourth embodiment of the tear band shown in FIG. 7, four cut lines 31 are arranged in parallel, and each cut line 31 has a cut line 34 in which an inward portion 33 is connected to an outer side portion 32. These cut lines 31 are alternately oriented in opposite directions.

In this tear band, as shown in FIG. 8, when tearing is performed between the cut lines 31 in every other line in the same direction from each direction, the cut line 34 on the near side is cut inward from the tip of the outer side 32 of the cut line 34. Since the tear to be deviated reaches the inward portion 33 of the next cut line 34, each cut line 31 is cut continuously, and the paper material can be cut without being cut off between the cut lines 31.

Next, in a fifth embodiment of the tear band shown in FIG. 9, four cut lines 41 are approached in parallel two by two, and each cut line 41 is a sewing machine in which short straight cut lines 42 are intermittent. It is an eye or a half-cut ruled line.

In this tearing band, as shown in FIG. 10, even if the tearing is performed from any direction, the tears run between the two adjacent cut rows 41 so as to connect the cuts 42 while swinging. The paper material can be cut without breaking between the cut lines 41.

Next, in the sixth embodiment shown in FIG.
The perforation lines 51 are parallel to each other, and each perforation line 51 is provided with an outer perimeter 55 at one end of a zigzag outer slope portion 52, a middle slope portion 53, and an inner slope portion 54, and a jumping up portion 56 at the other end. The cut 57 is interrupted.

In each row of cuts 51, the jumping portions 56 of the adjacent cuts 57 are located inside the outer side 55, and the middle slope 53 is provided with a connecting portion 58 for reinforcement.

In this tear band, as shown in FIG. 12, a tear generated from the outer edge 55 of the front cut 57 or the tip of the jumping up portion 56, regardless of the direction of tearing, is formed by the inner slope of the next cut 57. Since the sheet reaches the part 54 or the outer inclined part 52, each cut line 51 is cut continuously, and the paper material can be cut without breaking between the cut lines 51.

Further, since there are no cut lines linearly arranged at small intervals in the direction of each cut line 51, when this tear band is provided on a flap of a paper box, the flap is bent along the cut line 51 during box making. Is also prevented. Note that the connecting portion 58 may be omitted.

Next, in the seventh embodiment shown in FIG.
The row of cut lines 61 are arranged in parallel, and each row of cut lines 61
At one end, a jumping portion 64 with an inner extension 63 is interposed, and at the other end, a cut 67 with a winding portion 66 connected through an outer extension 65 is interrupted.

In each cut line 61, the inner extension 63 and the jumping portion 64 of the adjacent cut 67 are located inside the outer extension 65 and the winding portion 66, and the hypotenuse 62 has a connecting portion 68 for reinforcement. Is provided.

In this tear band, as shown in FIG. 14, the tear generated from the jumping up portion 64 of the cut 67 or the tip of the winding portion 66 at the front of the cut 67 is the oblique portion of the next cut 67, regardless of the tearing direction. Since it reaches 62, each cut line 61 is cut continuously, and the paper material can be cut without breaking between the cut lines 61.

Further, since there are no cut lines linearly arranged at small intervals in the direction of each cut line 61, when this tear band is provided on a flap of a paper box, a phenomenon that the flap is bent along the cut line 61 with box making. Is also prevented. Note that the connecting portion 68 may be omitted.

Next, in the eighth embodiment shown in FIG.
The cut lines 71 are arranged in parallel, and each cut line 71 is
2, a cut 76 in which an inward portion 73, an inner side 74, and a jumping portion 75 are sequentially connected is intermittent, and an adjacent cut 76
The inner side 74 and the jumping part 75 of the outer side 72 and the inward part 7
3 is located inside.

In this tear band, as shown in FIG. 16, even if the tear is carried out from any direction, the tear which is deviated inward from the outer edge 72 of the front cut 76 or the tip of the jump-up portion 75 becomes the next cut. Since the sheet reaches the inward portion 73 of 76, each cut line 71 is cut continuously, and the paper material can be cut without breaking between the cut lines 71.

In each of the above embodiments, if the cut has an angular bend, the bend may be rounded.

[0031]

As described above, in the tear band of the paper material according to the present invention, the tear generated from the tip of the front cut reaches the next cut regardless of the tear in any direction. Paper material can be cut without breaking between rows.

[Brief description of the drawings]

FIG. 1 is a plan view of a first embodiment of the present invention.

FIG. 2 is a perspective view showing a cutting process of the above.

FIG. 3 is a plan view of a second embodiment of the present invention.

FIG. 4 is a perspective view showing a cutting process of the above.

FIG. 5 is a plan view of a third embodiment of the present invention.

FIG. 6 is a perspective view showing a cutting process of the above.

FIG. 7 is a plan view of a fourth embodiment of the present invention.

FIG. 8 is a perspective view showing a cutting process of the above.

FIG. 9 is a plan view of a fifth embodiment of the present invention.

FIG. 10 is a perspective view showing a cutting process of the above.

FIG. 11 is a plan view of a sixth embodiment of the present invention.

FIG. 12 is a perspective view showing a cutting process of the above.

FIG. 13 is a plan view of a seventh embodiment of the present invention.

FIG. 14 is a perspective view showing a cutting process of the above.

FIG. 15 is a plan view of an eighth embodiment of the present invention.

FIG. 16 is a perspective view showing a cutting process of the above.

FIG. 17 is a plan view of a conventional tear band.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 cut line 2 straight cut 3 valley cut 11 cut line 12 long side 13 short side 14 jumping up 15 cut 21 cut line 22 chevron 23 jumping up 24 cut 31 cut line 32 outer edge 33 inward portion 34 cut 41 Cut line 42 Cut line 51 Cut line 52 Outer slope 53 Middle slope 54 Inner slope 55 Outer side 56 Jumping up 57 Notch 61 Cut row 62 Sloping side 63 Inner extension 64 Jumping up 65 Outer extension 66 Winding part 67 Incision 71 Cut line 72 Outer part 73 Inward part 74 Inner part 75 Jump-up part 76 Cut

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Keiko Omura 4-1-1, Okai, Fukushima-ku, Osaka Rengo Co., Ltd. Central Research Laboratory (72) Inventor Takuji Kimotsuki 19, Kichijo-in Kanon-do, Minami-ku, Kyoto Rengo Inside the Katsura Factory Co., Ltd. (72) Inventor Akira Nagacho 4-1-1186 Okai, Fukushima-ku, Osaka-shi Ren Go Co., Ltd. (72) Inventor Hiroki Sugita 4-1-1186 Okai, Fukushima-ku, Osaka Ren-Go Central Research Institute, Inc. (72) Inventor Yoshihiro Yasukawa 4-1-1, Okai, Fukushima-ku, Osaka Rengo F-term in Central Research Center (Reference) 3E060 CE03 CE11 DA14

Claims (9)

[Claims] In a tear band in which a plurality of cut lines in which a large number of cuts are intermittent are arranged in parallel, a paper material in which, when viewed from both directions, the next cut is located on the inner side of the front end of the cut immediately before. Tear band. 2. A method according to claim 1, wherein two cut lines are arranged in parallel.
Is a tear zone of a paper material in which the straight cuts 2 and the valley cuts 3 are alternately intermittent, and the straight cuts 2 are positioned inside both ends of the valley cuts 3. 3. The two cut lines 11 are arranged in parallel, and each cut line 11 is provided with a cut 15 having a short side 13 at one end of a long side 12 and a jumping portion 14 at the other end in a zigzag manner. The end of the short side 13 of the adjacent cut 15 is jumped up 14
The tear zone of the paper material located inside the tip of. 4. A row of two cut lines 21 are arranged in parallel, and each cut line 21 has a cut line 24 in which jump portions 23 are continuously provided at both ends of a chevron 22, and the jump lines 2 of adjacent cut lines 24 are intermittent.
A tear strip made of paper with the tips of 3 close together. 5. The four cut lines 31 are arranged in parallel, and each cut line 31 is formed by intermittent cuts 34 each having an inward portion 33 connected to one end of an outer side 32, and these cut lines 31 are alternately formed. Torn strip of paper facing in the opposite direction. 6. A tear band of a paper material in which four cut lines 41 are closely arranged in parallel two by two, and each cut line 41 has short straight cuts 42 intermittent. 7. A row of two cut lines 51 are arranged in parallel, and each cut line 51 has an outer side portion 55 at one end of an outer slope portion 52, a middle slope portion 53, and an inner slope portion 54 arranged in a zigzag, and an outer side portion 55 at the other end. It is assumed that a cut 57 formed by connecting the jump portions 56 is intermittent, and the adjacent cut 57
A tear band made of a paper material in which the jumping portion 56 of the paper is positioned inside the outer side portion 55. 8. The two cut lines 61 are arranged in parallel, and each cut line 61 is rolled up at one end of the oblique side 62 via an inner extension 63 and at the other end via an outer extension 65. A tear band made of a paper material in which a cut 67 provided with a series of portions 66 is intermittent, and an inner extension 63 and a jumping portion 64 of an adjacent cut 67 are positioned inside the outer extension 65 and the winding portion 66. 9. Two cut lines 71 are arranged in parallel, and in each cut line 71, a cut line 76 in which an inward portion 73, an inner side portion 74, and a jumping portion 75 are sequentially connected to an outer side portion 72 is intermittent. The inner edge 74 and the jumping portion 75 of the adjacent cut 76 are connected to the outer edge 7.
2 and a tear strip of paper material located inside the inward portion 73.