JP4126970B2 - Strip-shaped opening structure and paper box - Google Patents
Strip-shaped opening structure and paper box Download PDFInfo
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- JP4126970B2 JP4126970B2 JP2002182537A JP2002182537A JP4126970B2 JP 4126970 B2 JP4126970 B2 JP 4126970B2 JP 2002182537 A JP2002182537 A JP 2002182537A JP 2002182537 A JP2002182537 A JP 2002182537A JP 4126970 B2 JP4126970 B2 JP 4126970B2
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- Prior art keywords
- opening
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- paper
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- paper box
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Description
【０００１】
【発明の属する技術分野】
本発明は紙箱など紙器の開口部に用いられる帯状の開封構造に関し、特には、紙目に対して垂直方向の力に対して効果のある帯状の開封構造及び紙箱に関する。
【０００２】
【従来の技術】
紙箱の開封構造の一つに、紙箱の開口部に、例えば、図３（ａ）、（ｂ）に示すような、ミシン目状の切れ目線を２本平行に設けた帯状構造（１００）があり、このような開封構造を備えた紙箱はジッパー付きカートンと呼ばれて菓子類、冷凍食品等を入れる容器として多用されている。
【０００３】
ミシン目状の切れ目線の形状は、くの字を横にして連続して並べたくの字状（図４（ａ）参照）、Ｔの字を横にして連続して並べたＴの字状（図４（ｂ）参照）、Ｙの字を横にして連続して並べたＹの字状（図４（ｃ）参照）等各種の形状が知られているが、いずれも紙目（紙の繊維の方向）（Ｋ）と平行にミシン目状の切れ目線（１）が設けられているため、つなぎ部分（ｔ）も紙の繊維に沿って切れ目線（ｓ）の延長で紙はきれいに引き裂かれる。
【０００４】
しかしながら、紙目に対して垂直にミシン目状の切れ目線を設けた場合には、図４（ａ）や図４（ｂ）のようなくの字状やＴの字状の開封構造の場合には、つなぎ部分（ｔ）からミシン目状の切れ目線に対して垂直方向（紙の繊維の方向）に切れる力が働いてミシン目状の切れ目線に沿って切れずに紙むけを起こしてしまうことが多い。
【０００５】
また図４（ｃ）のようなＹの字状の開封構造の場合には、紙むけは起こさないが、筒状に成形したり、軽く曲がった形状に成形した場合、Ｙの字の二股部分（Ｆ）が跳ね上がり、隣りのカートンとこすれやひっかかりを起こす可能性がある（図５参照）。
【０００６】
【発明が解決しようとする課題】
本発明は、紙目に対して垂直方向に設けるミシン目状の切れ目線を２本平行に設けた帯状の開封構造に関する以上のような問題点を解決するためになされたもので、紙目に対して垂直方向に設けた場合にも紙むけなどを起こさずに、きれいに引き裂き可能な紙箱など紙器用の帯状の開封構造を提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明の請求項１の発明は、紙箱等の開封予定部に、開封開始個所から開封方向に沿って切れ刃によりミシン目状の切れ目線を２本平行線状に設けた帯状の開封構造であって、前記２本平行な切れ目線の各線形状が、複数のＹの字を、その各々Ｙの字の２股部分が開封開始個所の方向に向くように横にした形状に設けられ、前記各々Ｙの字の２股部分のうち、２本平行な切れ目線の平行線外側にある一方の部分が開封方向に対して垂直方向に設けられ、且つ前記２本平行な切れ目線の平行線内側にある他方の部分が開封方向に対して斜め１３５°に設けられ、前記各々切れ目線が２本平行線状につなぎ部分を介して設けられていることを特徴とする帯状の開封構造である。
【０００８】
このように請求項１記載の発明によれば、ミシン目状の切れ目線の切れ目線の１つの形状が、Ｙの字を横にして２股部分の一方の切れ目線は横棒（一）の切れ目線に対して直角方向に向け、もう一方の切れ目線は横棒（一）の切れ目線となす角度が１３５°とし、該直角方向に向けた切れ目線は帯の外側方向を向くように配置した変形Ｙの字形状であり、前記変形Ｙの字形状の切れ目線を、横棒（一）が同一線状に並ぶように同一方向につなぎ部分を介在させて連続して設けたので、帯状の開封構造が紙目に対して垂直方向に設けられた場合であっても、帯の外側方向に向いている直角方向に曲げた切れ目線が切れ目の飛び出しやはね上がりを抑制し、外側への紙むけを阻止する効果がある。なお、内側への紙むけは１３５°の切れ目線で阻止している。
【０００９】
また、請求項２の発明は、上記請求項１記載の帯状の開封構造を備えた紙箱であって、開封開始個所から開封方向に沿って設けた前記２本平行な切れ目線の平行線方向が、紙目に対して垂直方向であることを特徴とする紙箱である。
【００１０】
このように請求項２記載の発明によれば、請求項１の発明のような開封構造であり、且つ、２本平行な切れ目線の平行線方向が、紙目に対して垂直方向であるので、紙目に対して垂直方向の力に対して効果のある帯状の開封構造を有する紙箱が得られる。
【００１１】
【発明の実施の形態】
本発明の紙箱の開封構造を一実施形態に基づいて以下に詳細に説明する。
本発明の紙箱の開封構造は、例えば図１に示すように、紙箱等の開口部に切れ刃によりミシン目状の切れ目線（１）を２本平行に設けた帯状の開封構造（１０）であり、紙箱等の開封予定部に、開封開始個所から開封方向に沿って切れ刃によりミシン目状の切れ目線（１）を２本平行線状に設けた帯状の開封構造（１０）であって、前記２本平行な切れ目線（１、１）の各線形状が、複数のＹの字を、その各々Ｙの字の２股部分が開封開始個所の方向に向くように横にした形状に設けられていて、前記各々Ｙの字の２股部分のうち、２本平行な切れ目線（１、１）の平行線外側にある一方の部分は、開封方向に対して垂直方向に設けられ、且つ前記２本平行な切れ目線の平行線内側にある他方の部分は、開封方向に対して斜め１３５°に設けられ、前記各々切れ目線（１、１）が２本平行線状につなぎ部分（ｔ）を介して設けられている。
【００１２】
このようにミシン目状の切れ目線の１つの形状は、Ｙの字を横にして２股部分の一方の切れ目線（ａ）は横棒（一）の切れ目線（ｂ）に対して直角方向に向け、もう一方の切れ目線（ｃ）は横棒（一）の切れ目線（ｂ）となす角度が１３５°とし、該直角方向に向けた切れ目線（ａ）は帯状の開封構造の外側方向を向くように配置した変形Ｙの字形状である。
【００１３】
この変形Ｙの字形状の切れ目線を、横棒（一）が同一線状に並ぶように同一方向につなぎ部分（ｔ）を介在させて連続して並べ、ミシン目状の切れ目線（１）としたものである。
【００１４】
図２はこのようにして作製した帯状の開封構造を紙容器の一つである円筒状の紙筒に取り付けた一実施例を示す、（ａ）は胴体部分の展開説明図であり、（ｂ）は組み立てた紙筒の斜視説明図である。
【００１５】
図２（ａ）、（ｂ）において、（１）は開口予定部に設けたミシン目状の切れ目線であり、（１０）は２本の平行なミシン目状の切れ目線に挟まれて形成された帯状の開封構造である。
【００１６】
２本の平行なミシン目状の切れ目線（１、１）は紙容器用ブランクの紙目に対して垂直方向に設けられている。
【００１７】
２本の平行なミシン目状の切れ目線は、互いに２股部分の一方の切れ目線（ａ）、横棒の切れ目線（ｂ）やつなぎ部分（ｔ）が同じ位置にくるように、開封構造の帯の横方向の中心線に対して上下対称に設けられている。そのために、帯をミシン目状の切れ目線に沿って引き裂くと、きれいに平行に開口部が現れる。
【００１８】
帯状の開封構造の開封開始個所（１１）を引っ張ると、ミシン目状の切れ目線に沿って平行に破れ、帯状の開封構造（１０）は２股部分の一方の切れ目線（帯の外側に向いている直角方向の切れ目線）（ａ）が切れ目の飛び出しやはね上がりを抑制し、外側への紙むけを阻止して、２本の平行なミシン目状の切れ目線（１、１）に沿って、帯状の開封構造（１０）はきれいに切れて開口部が表われる。
なお、変形Ｙの字形状の切れ目線の前に横棒（−）と同一線状に並ぶように破線等を設け、その部分を開封開始個所（１１）とすると、開封開始がよりし易くなる。
【００１９】
【発明の効果】
このように、本発明の帯状の開封構造を使用することにより、２本平行な切れ目線の平行線方向を紙目に垂直に設けても、紙むけを断つことができ、紙目に対して垂直方向の力に対して効果のある帯状の開封構造及び紙箱を提供でき、きれいな開口が可能になる。また、筒状に丸めた状態にしても切れ目部分で切れ目の飛び出し等がなく安全である。
【図面の簡単な説明】
【図１】 本発明の帯状の開封構造の一実施例を示す、平面説明図である。
【図２】 本発明の帯状の開封構造を開口部に用いた紙箱の一実施例を示す、（ａ）は紙箱の胴体部分の展開説明図であり、（ｂ）は斜視説明図である。
【図３】 従来の帯状の開封構造を開口部に用いた紙箱の一実施例を示す、（ａ）は展開説明図であり、（ｂ）は斜視説明図である。
【図４】 （ａ）〜（ｃ）は従来の帯状の開封構造の一例を示す、平面説明図である。
【図５】 従来の帯状の開封構造の一つであるＹの字状の開封構造を円筒状紙箱に適用した場合の二股部分の状態を示す、説明図である。
【符号の説明】
１‥‥ミシン目状の切れ目線
１０‥‥帯状の開封構造
１１‥‥開封開始個所
２０‥‥紙箱等の紙器
１００‥‥従来の帯状の開封構造
ａ‥‥２股部分の一方の切れ目線
ｂ‥‥横棒の切れ目線
ｃ‥‥２股部分のもう一方の切れ目線
ｓ‥‥切れ目線
ｔ‥‥つなぎ部分
Ｆ‥‥２股部分
Ｋ‥‥紙目[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a band-shaped opening structure used for an opening of a paper container such as a paper box, and more particularly to a band-shaped opening structure and a paper box that are effective against a force perpendicular to the paper grain .
[0002]
[Prior art]
As one of the unsealing structures of the paper box, there is a belt-like structure (100) in which two perforated cut lines are provided in parallel at the opening of the paper box, as shown in FIGS. A paper box having such an opening structure is called a carton with a zipper and is often used as a container for storing confectionery, frozen food, and the like.
[0003]
The shape of the perforated cut line is a U-shape (see FIG. 4A) arranged continuously with the U-shaped sideways, and a T-shape formed continuously with the T-shaped sideways. Various shapes are known, such as a Y shape (see FIG. 4C), which is continuously arranged side by side with the Y shape (see FIG. 4B), but all of them have a paper texture (paper Since the perforated cut line (1) is provided in parallel with (K), the joint part (t) is also extended along the paper fiber by extending the cut line (s) so that the paper is clean. Torn.
[0004]
However, when a perforated cut line is provided perpendicular to the paper pattern, in the case of an unshaped or T-shaped opening structure as shown in FIG. 4 (a) or 4 (b). Causes a cutting force in the direction perpendicular to the perforated cut line from the joint portion (t) (the direction of the fiber of the paper), causing the paper not to be cut along the perforated cut line. There are many cases.
[0005]
Further, in the case of the Y-shaped opening structure as shown in FIG. 4 (c), the paper is not peeled, but when it is formed into a cylindrical shape or a lightly bent shape, it is a bifurcated portion of the Y shape. There is a possibility that (F) jumps up and rubs or catches with the adjacent carton (see FIG. 5).
[0006]
[Problems to be solved by the invention]
The present invention has been made to solve the above-described problems related to the band-shaped opening structure in which two perforated cut lines provided in a direction perpendicular to the paper are provided in parallel. In contrast, an object of the present invention is to provide a belt-like opening structure for paper containers such as a paper box that can be torn cleanly without causing paper peeling or the like even when provided vertically.
[0007]
[Means for Solving the Problems]
The invention of
[0008]
As described above, according to the first aspect of the present invention, one shape of the perforated cut line has a Y-shaped side and one cut line of the bifurcated portion is a horizontal bar (one). Arranged so that the angle between the other cut line and the horizontal line (one) is 135 °, and the cut line directed to the right angle is facing the outside of the band. The deformation Y-shaped cut line is continuously provided with the connecting portions in the same direction so that the horizontal bars (1) are arranged in the same line, so that the band shape Even when the unsealing structure is provided in a direction perpendicular to the paper grain, the cut line bent in the direction perpendicular to the outer side of the band suppresses the jumping and jumping of the cut, and the paper to the outside It has the effect of preventing the problem. Note that inward paper peeling is blocked by a 135 ° cut line.
[0009]
The invention of claim 2 is a paper box provided with the belt-like opening structure of
[0010]
Thus, according to the second aspect of the present invention, the opening structure is as in the first aspect of the invention, and the parallel line direction of the two parallel cut lines is perpendicular to the paper line. Thus, a paper box having a band-shaped opening structure effective for a force perpendicular to the paper grain is obtained.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The opening structure of the paper box of this invention is demonstrated in detail below based on one Embodiment.
The paper box opening structure of the present invention is, for example, as shown in FIG. 1, a belt-like opening structure (10) in which two perforated cut lines (1) are provided in parallel at the opening of a paper box or the like by a cutting blade. Ah is, the opening piece of paper box, etc., meet strip opening structure in which perforation-like cut lines (1) to two parallel lines by a cutting edge along the opening direction from the open trigger point (10) Thus, each of the two parallel cut lines (1, 1) has a shape in which a plurality of Y shapes are laid sideways so that the two crotch portions of each Y shape face the direction of the opening start location. One of the two crotch portions of the Y-shaped portion located outside the parallel line of the two parallel cut lines (1, 1) is provided in a direction perpendicular to the opening direction, and the other portion of the parallel lines inside the two parallel score line is provided obliquely 135 ° with respect to the unsealing direction Is provided via a connecting portion (t) wherein each cut line (1,1) to the two parallel lines.
[0012]
In this way, one shape of the perforated cut line is such that one of the cut lines (a) of the fork portion is perpendicular to the cut line (b) of the horizontal bar (one) with the Y-shaped sideways. The angle between the other cut line (c) and the cut line (b) of the horizontal bar (1) is 135 °, and the cut line (a) directed in the perpendicular direction is the outward direction of the band-shaped opening structure. The shape of the deformation Y is arranged so as to face.
[0013]
The deformed Y-shaped cut lines are continuously arranged in the same direction with the connecting portions (t) so that the horizontal bars (1) are arranged in the same line, and the perforated line (1) It is what.
[0014]
FIG. 2 shows an embodiment in which the belt-shaped unsealing structure produced in this way is attached to a cylindrical paper tube which is one of the paper containers, (a) is a development explanatory view of the body portion, (b ) Is an explanatory perspective view of the assembled paper tube.
[0015]
2 (a) and 2 (b), (1) is a perforated cut line provided in the planned opening portion, and (10) is formed by being sandwiched between two parallel perforated cut lines. This is a belt-shaped opening structure.
[0016]
Two parallel perforated cut lines (1, 1) are provided in a direction perpendicular to the paper line of the paper container blank.
[0017]
The two parallel perforated cut lines are opened so that one cut line (a) of the two crotch portions, the cut line (b) of the horizontal bar and the connecting portion (t) are at the same position. Are provided symmetrically with respect to the horizontal center line of the band . Therefore, when the strip is torn along the perforated cut line, the openings appear neatly in parallel.
[0018]
When the opening start portion (11) of the band-shaped opening structure is pulled, it is torn in parallel along the perforated cut line, and the band-shaped opening structure (10) has one cut line (facing the outside of the band). (A) is a perpendicular cut line) (a) suppresses the jumping and jumping of the cut and prevents the paper from being peeled to the outside, along the two parallel perforated cut lines (1, 1). The strip-shaped opening structure (10) is cut cleanly to reveal the opening.
In addition, if a broken line or the like is provided so as to be aligned with the horizontal bar (−) in front of the deformed Y-shaped break line, and that portion is used as an opening start portion (11), the opening start becomes easier. .
[0019]
【The invention's effect】
As described above, by using the band-shaped unsealing structure of the present invention, even if the parallel line direction of two parallel cut lines is provided perpendicular to the paper, it is possible to cut off the paper. A band-shaped opening structure and a paper box effective for vertical force can be provided, and a clean opening is possible. Moreover, even when the tube is rolled up, it is safe because there is no jumping out of the cut at the cut portion.
[Brief description of the drawings]
FIG. 1 is an explanatory plan view showing an embodiment of a band-shaped opening structure of the present invention.
FIGS. 2A and 2B show an embodiment of a paper box using a band-like opening structure of the present invention as an opening, FIG. 2A is a development explanatory view of a body portion of the paper box, and FIG. 2B is a perspective explanatory view.
FIGS. 3A and 3B show an embodiment of a paper box using a conventional belt-shaped unsealing structure for an opening, FIG. 3A is a development explanatory view, and FIG. 3B is a perspective explanatory view.
FIGS. 4A to 4C are plan explanatory views showing an example of a conventional band-shaped opening structure.
FIG. 5 is an explanatory view showing a state of a forked portion when a Y-shaped opening structure, which is one of the conventional band-shaped opening structures, is applied to a cylindrical paper box.
[Explanation of symbols]
DESCRIPTION OF
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002182537A JP4126970B2 (en) | 2002-06-24 | 2002-06-24 | Strip-shaped opening structure and paper box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002182537A JP4126970B2 (en) | 2002-06-24 | 2002-06-24 | Strip-shaped opening structure and paper box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004026178A JP2004026178A (en) | 2004-01-29 |
| JP4126970B2 true JP4126970B2 (en) | 2008-07-30 |
Family
ID=31179010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002182537A Expired - Fee Related JP4126970B2 (en) | 2002-06-24 | 2002-06-24 | Strip-shaped opening structure and paper box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4126970B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5352368B2 (en) * | 2009-07-29 | 2013-11-27 | 日東電工株式会社 | Adhesive sheet or tape for skin application |
| JP5499945B2 (en) * | 2010-06-29 | 2014-05-21 | 大日本印刷株式会社 | Zipper structure that can be opened in both directions |
| JP5848051B2 (en) * | 2011-07-21 | 2016-01-27 | 共同印刷株式会社 | Packaging box |
| JP6411241B2 (en) * | 2015-02-24 | 2018-10-24 | 株式会社トーモク | Corrugated zipper for breaking |
| JP6636703B2 (en) * | 2015-02-24 | 2020-01-29 | 株式会社トーモク | Zipper for breaking cardboard |
| WO2019176291A1 (en) * | 2018-03-12 | 2019-09-19 | ソニー株式会社 | Packaging film, film package using packaging film, and film packaging method |
-
2002
- 2002-06-24 JP JP2002182537A patent/JP4126970B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004026178A (en) | 2004-01-29 |
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