JP2005126071A - Easily-openable plastic chuck and bag equipped with the same - Google Patents

Easily-openable plastic chuck and bag equipped with the same Download PDF

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Publication number
JP2005126071A
JP2005126071A JP2003360122A JP2003360122A JP2005126071A JP 2005126071 A JP2005126071 A JP 2005126071A JP 2003360122 A JP2003360122 A JP 2003360122A JP 2003360122 A JP2003360122 A JP 2003360122A JP 2005126071 A JP2005126071 A JP 2005126071A
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Prior art keywords
plastic chuck
male
female
nail
chuck
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Inventor
Katsuhiko Hasegawa
克彦 長谷川
Masataka Shinozaki
正孝 篠崎
Tatsuya Ito
辰哉 伊藤
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Resonac Holdings Corp
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Showa Highpolymer Co Ltd
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Priority to JP2003360122A priority Critical patent/JP2005126071A/en
Publication of JP2005126071A publication Critical patent/JP2005126071A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a plastic chuck, which prevents the slippage of opening side flanges of the plastic chuck when the chuck is opened by gripping and pulling the flanges toward both sides, and eliminates a concern of impairing the appearance of a bag with the chuck upon making the bag. <P>SOLUTION: The plastic chuck is composed of a pair of male/female hook nails and respective flanges of the nails. Nonslip recessions are formed on the interior of either or both of the opening side flanges of the male/female hook nails. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、食品、薬品などの簡易な包装材として広く使用されている、プラスチックチャック付き包装容器に用いられる、開放が容易であり、再封止が可能なプラスチックチャック及びそれを備えた袋体に関する。   The present invention is used for a packaging container with a plastic chuck, which is widely used as a simple packaging material for foods, medicines, and the like. About.

従来、雄雌一対の鈎爪とその各々のフランジ部とによって構成されたプラスチックチャックを備えた軟質包装材は、軽量、安価、リサイクルの容易さ、使用後の減容積率の大きさ、などの利点を有するため、種々の物品の包装容器として使用されている。
そして、その使用量、用途が広がっていくに従って、子供からお年寄りまで幅広い範囲の人により使用され始めている。
プラスチックチャックの開放は、通常は、各鈎爪の開口側フランジ部を把持して両側に引っ張ることにより行なうが、フランジ部が平滑なプラスチックフィルムからなる場合は滑りやすいため、子供やお年寄りなどの力の弱い人や、手が油汚れしている人などには、開放し難いという問題があり解決が望まれていた。 Conventionally, a soft packaging material provided with a plastic chuck constituted by a pair of male and female claws and their flanges is lightweight, inexpensive, easy to recycle, the size of volume reduction after use, etc. Because of its advantages, it is used as a packaging container for various articles.
And as its usage and usage expand, it has begun to be used by a wide range of people from children to the elderly.
Opening the plastic chuck is usually done by gripping the opening flange of each claw and pulling it to both sides, but if the flange is made of a smooth plastic film, it will be slippery, so children, the elderly, etc. A person with weak power or a person whose hands are soiled with oil has a problem that it is difficult to open, and a solution has been desired.

従来、プラスチックチャックの開口側フランジ部の形状に関し、幾つかの試み・提案がなされている。
図３及び４は、従来技術の例を示す図であり、各々、（Ａ）は係合状態にあるプラスチックチャックの断面図を、（Ｂ）はプラスチックチャックの雌爪側の平面図を、各々示している。
図３に示した例は、雄爪１１側、雌爪１２側の各々の開口側フランジ部２１、２２の内面の開口端にリブ５１、５２を設けた例であり、図４に示した例は、雄爪１１側、雌爪１２側の各々の開口側フランジ部２１、２２の内面に、雄爪、雌爪各々に平行に伸長する多数の隆起部６１、６２を設けた例である（例えば、特許文献１参考）。
しかし、図３に示した例の場合のリブ５１，５２も、図４に示した例の場合の隆起部６１、６２も、何れも、フランジ部の内面から突出する凸形状であるため、製袋時のプラスチックチャックと袋体本体のプラスチックフィルムとの溶着の際にしわが発生して、袋体の外観不良を起こす恐れがある。 Conventionally, several attempts and proposals have been made regarding the shape of the opening flange portion of the plastic chuck.
3 and 4 are views showing examples of the prior art, in which (A) is a sectional view of the plastic chuck in an engaged state, and (B) is a plan view of the female nail side of the plastic chuck, respectively. Show.
The example shown in FIG. 3 is an example in which ribs 51 and 52 are provided at the opening ends of the inner surfaces of the opening-side flange portions 21 and 22 on the male nail 11 side and the female nail 12 side, respectively. Is an example in which a large number of raised portions 61 and 62 extending in parallel to the male and female claws are provided on the inner surfaces of the opening-side flange portions 21 and 22 on the male claw 11 side and the female claw 12 side, respectively ( For example, see Patent Document 1).
However, the ribs 51 and 52 in the example shown in FIG. 3 and the raised portions 61 and 62 in the example shown in FIG. 4 are both convex shapes protruding from the inner surface of the flange portion. There is a possibility that wrinkles occur when the plastic chuck at the time of bagging and the plastic film of the bag body are welded, resulting in poor appearance of the bag body.

特開昭６２−７８０６２号公報（第１頁、第１図）JP-A-62-78062 (first page, FIG. 1)

本発明は、プラスチックチャックの開口側フランジ部を把持して両側に引っ張ることによりプラスチックチャックを開放する際のフランジ部の滑りを防止でき、かつ製袋時に袋体の外観不良を起こす恐れのないプラスチックチャックを提供することを目的とする。   The present invention is a plastic that can prevent slipping of the flange portion when opening the plastic chuck by gripping the opening flange portion of the plastic chuck and pulling it on both sides, and does not cause a bad appearance of the bag body during bag making. An object is to provide a chuck.

本発明者は、鋭意研究の結果、プラスチックチャックの開口側フランジ部の内面にすべり止め用の凹部を設けることにより、上記課題を解決し得ることを見出した。本発明は、かかる知見に基いて完成したものである。   As a result of diligent research, the present inventor has found that the above problem can be solved by providing a recess for preventing slipping on the inner surface of the opening flange portion of the plastic chuck. The present invention has been completed based on such knowledge.

すなわち、本発明は、
（１）雄雌一対の鈎爪とその各々のフランジ部とによって構成されたプラスチックチャックにおいて、雄爪の開口側フランジ部と雌爪の開口側フランジ部との何れか一方又は両方の内面に、すべり止め用の凹部を設けた易開放性プラスチックチャック、
（２）凹部が、円形、楕円形又は三角形以上の多角形の複数個の窪みである上記（１）の易開放性プラスチックチャック、
（３）凹部が、互いに交叉するか又は鈎爪に平行で且つ互いに平行な複数本の溝である上記（１）の易開放性プラスチックチャック、
（４）凹部の深さが０．０５〜０．１０ｍｍである、上記（１）〜（３）の何れかの易開放性プラスチックチャック、
（５）凹部が、ローレット加工によって形成されたものである、上記（１）〜（４）の何れかの易開放性プラスチックチャック、及び
（６）上記（１）〜（５）の何れかの易開放性プラスチックチャックを備えた袋体
である。 That is, the present invention
(1) In a plastic chuck composed of a pair of male and female claws and their respective flange portions, on the inner surface of either or both of the opening side flange portion of the male nail and the opening side flange portion of the female nail, Easy-to-open plastic chuck with a non-slip recess,
(2) The easily openable plastic chuck according to the above (1), wherein the concave portion is a plurality of hollows having a circular shape, an elliptical shape or a polygon shape having a triangular shape or more.
(3) The easily openable plastic chuck according to (1), wherein the recesses are a plurality of grooves intersecting each other or parallel to the claws and parallel to each other.
(4) The easily openable plastic chuck according to any one of (1) to (3) above, wherein the depth of the recess is 0.05 to 0.10 mm,
(5) The easily openable plastic chuck of any one of (1) to (4) above, and (6) any of (1) to (5) above, wherein the concave portion is formed by knurling. It is a bag body provided with an easily openable plastic chuck.

プラスチックチャックの開口側フランジ部の内面にすべり止め用の凹部を設けることにより、製袋時に袋体の外観不良を発生させない、易開放性プラスチックチャックとすることができた。   By providing a recess for preventing slipping on the inner surface of the opening side flange portion of the plastic chuck, it was possible to obtain an easily openable plastic chuck that did not cause poor appearance of the bag body during bag making.

以下、図面を用いて本発明を更に詳しく説明する。
図１は、本発明の１態様を示す図であり、（Ａ）は係合状態にあるプラスチックチャックの断面図を、（Ｂ）はプラスチックチャックの雌爪側の平面図を、各々示している。
図１に示した態様においては、雄爪１１側、雌爪１２側の各々の開口側フランジ部２１、２２の内面の鈎爪側に円形の複数の窪みからなる凹部３１、３２が設けられている。 図２は、本発明の他の態様を示す図であり、（Ａ）は係合状態にあるプラスチックチャックの断面図を、（Ｂ）はプラスチックチャックの雌爪側の平面図を、各々示している。 図２に示した態様においては、雄爪１１側、雌爪１２側の各々の開口側フランジ部２１、２２の内面の鈎爪側に、互いに交叉する複数本の溝からなる凹部４１、４２が設けられている。 Hereinafter, the present invention will be described in more detail with reference to the drawings.
1A and 1B are diagrams showing an embodiment of the present invention, in which FIG. 1A shows a cross-sectional view of a plastic chuck in an engaged state, and FIG. 1B shows a plan view of a female claw side of the plastic chuck. .
In the embodiment shown in FIG. 1, concave portions 31 and 32 each having a plurality of circular depressions are provided on the claws on the inner surfaces of the opening-side flange portions 21 and 22 on the male claw 11 side and the female claw 12 side. Yes. 2A and 2B are views showing another embodiment of the present invention, in which FIG. 2A shows a sectional view of the plastic chuck in an engaged state, and FIG. 2B shows a plan view of the female claw side of the plastic chuck. Yes. In the embodiment shown in FIG. 2, concave portions 41, 42 made up of a plurality of grooves intersecting each other are formed on the claws on the inner surfaces of the opening-side flange portions 21, 22 on the male claw 11 side and the female claw 12 side. Is provided.

凹部は、図１に示した円形の窪みからなる凹部及び図２に示した互いに交叉する複数本の溝からなる凹部に限らず、楕円形又は三角形以上の多角形の複数個の窪みからなる場合や、鈎爪に平行で且つ互いに平行な複数本の溝からなる場合であっても良い。
凹部の深さは、すべり止めという目的を達成する為には、０．０５〜０．１０ｍｍであるのが好ましい。 The concave portion is not limited to the concave portion including the circular recess illustrated in FIG. 1 and the concave portion including the plurality of grooves intersecting each other illustrated in FIG. Alternatively, it may be formed by a plurality of grooves parallel to the claw and parallel to each other.
The depth of the recess is preferably 0.05 to 0.10 mm in order to achieve the purpose of preventing slipping.

凹部は、雄爪の開口側フランジ部と雌爪の開口側フランジ部の何れか一方の内面に設けるだけでも良いが、プラスチックチャックを容易且つ確実に開放するためには、両方に設ける方が好ましい。
又、凹部は、必ずしも、開口側フランジ部の内面の全体に設ける必要はなく、図１、図２に示すように、開口側フランジ部の鈎爪側に偏在させて設けても良いが、少なくとも、開口側フランジ部の鈎爪から１〜４ｍｍの範囲には、必ず凹部を存在させる、即ち、鈎爪から１〜４ｍｍの範囲の全体又は一部に凹部を存在させるのが好ましい。 The recess may be provided only on the inner surface of one of the opening-side flange portion of the male nail and the opening-side flange portion of the female nail, but it is preferable to provide the recess on both in order to open the plastic chuck easily and reliably. .
Further, the concave portion is not necessarily provided on the entire inner surface of the opening-side flange portion, and as shown in FIGS. 1 and 2, it may be provided to be unevenly distributed on the claw side of the opening-side flange portion. It is preferable that a recess is always present in the range of 1 to 4 mm from the claw of the opening flange portion, that is, the recess is preferably present in the whole or part of the range of 1 to 4 mm from the claw.

凹部を形成する方法、時期には特に制限はないが、雄爪と雌爪とを係合する前の、雄爪側、雌爪側を別々に成形する際に、ローレット法により形成するのが、作業性などの点で好ましい。   There is no particular limitation on the method and timing for forming the recess, but it is formed by the knurling method when separately molding the male nail side and the female nail side before engaging the male nail and the female nail. It is preferable in terms of workability.

プラスチックチャックは、図１及び図２に描かれている形状の雄爪、雌爪を有する通常型のものに限らず、例えば、特許第２９３８７８４号に記載されている、密閉型のものであっても良い。
また、開口側フランジ部も、図１及び図２に描かれているように、雄爪の開口側フランジ部と雌爪の開口側フランジ部の長さ（爪から開口端までの長さ）が同じである必要はなく、長さを異にすることによって、端部を掴み易くしても良い。 The plastic chuck is not limited to a normal type having male and female nails having the shapes depicted in FIGS. 1 and 2, but is a sealed type described in, for example, Japanese Patent No. 2938784. Also good.
In addition, as shown in FIGS. 1 and 2, the opening-side flange portion has a length (length from the nail to the opening end) of the opening-side flange portion of the male nail and the opening-side flange portion of the female nail. The ends need not be the same, and the end portions may be easily grasped by using different lengths.

以下、実施例により、本発明を説明する。   Hereinafter, the present invention will be described by way of examples.

実施例１
図１に示すごときプラスチックチャックを、雄爪側、雌爪側を別々に直鎖形低密度ポリエチレンポリエチレン（Ｌ−ＬＤＰＥ）で成形し、雄爪と雌爪とを係合することにより、製造した。
雄爪、雌爪からなる爪部の係合状態における幅は１８ｍｍ、厚さ（高さ）は１．７５ｍｍであり、フランジ部は、雄爪、雌爪共に、厚さが０．１５ｍｍ、開口側の長さが１０．５ｍｍ、内容物側の長さが５．５ｍｍである。
雄爪の開口側フランジ部及び雌爪の開口側フランジ部の各々の内面の、鈎爪から６ｍｍの範囲に、雄爪と雌爪とを係合する前に、ローレット加工により、直径０．５ｍｍ、深さ０．０５ｍｍの円形の窪みからなる凹部を、相互の間隔が０．５ｍｍとなるようにして設けた。 Example 1
A plastic chuck as shown in FIG. 1 was produced by separately molding the male nail side and the female nail side with linear low density polyethylene polyethylene (L-LDPE) and engaging the male nail and the female nail. .
The width of the nail portion of the male nail and the female nail in the engaged state is 18 mm, and the thickness (height) is 1.75 mm, and the flange portion is 0.15 mm thick for both the male nail and the female nail. The length on the side is 10.5 mm and the length on the contents side is 5.5 mm.
Before engaging the male and female claws within a range of 6 mm from the claws on the inner surface of each of the male claw opening side flange part and the female claw opening side flange part, a diameter of 0.5 mm is obtained by knurling. In addition, recesses made of circular depressions having a depth of 0.05 mm were provided so that the distance between them was 0.5 mm.

上記で得られたプラスチックチャックを使用して、該プラスチックチャックを備えた、幅２２０ｍｍ、高さ３２０ｍｍ（何れも外寸）の平袋を、連続製袋機により製造したが、袋体の外観不良を発生させずに、安定的に袋体を製造することができた。   Using the plastic chuck obtained above, a flat bag having a width of 220 mm and a height of 320 mm (both outer dimensions) provided with the plastic chuck was produced by a continuous bag making machine, but the appearance of the bag body was poor. The bag body was able to be manufactured stably without generating.

実施例２
雄爪の開口側フランジ部及び雌爪の開口側フランジ部の各々の内面の、開口端から６ｍｍの範囲に、雄爪と雌爪とを係合する前に、ローレット加工により、直径０．５ｍｍ、深さ０．０５ｍｍの円形の窪みからなる凹部を、図２に示すように、相互の間隔が１．０ｍｍとなるよう交叉させて設けた以外は、実施例１と同様に行なったところ、袋体の外観不良を発生させずに、安定的に袋体を製造することができた。 Example 2
Before engaging the male and female claws within a range of 6 mm from the open end of the inner surface of each of the male claw opening side flange portion and the female claw opening side flange portion, a diameter of 0.5 mm is obtained by knurling. In the same manner as in Example 1 except that a concave portion formed by a circular depression having a depth of 0.05 mm was provided so as to cross each other so that the distance between them was 1.0 mm as shown in FIG. The bag body could be stably manufactured without causing the appearance defect of the bag body.

本発明のプラスチックチャックは、容易に開放ができ、しかも製袋時に袋体の外観不良を発生させないものであり、軽量、安価、リサイクルの容易さ、使用後の減容積率の大きさ、などの点から広く普及してきているプラスチック製包装容器に好適に使用することができる。   The plastic chuck of the present invention can be easily opened, and does not cause poor appearance of the bag body during bag making, such as light weight, low cost, ease of recycling, size of volume reduction after use, etc. It can be suitably used for plastic packaging containers that have become widespread from the point of view.

本発明の１態様を示す図であり、（Ａ）は係合状態にあるプラスチックチャックの断面図を、（Ｂ）はプラスチックチャックの雌爪側の平面図を、各々示している。It is a figure which shows 1 aspect of this invention, (A) is sectional drawing of the plastic chuck in the engagement state, (B) has each shown the top view by the side of the female nail | claw of a plastic chuck. 本発明の他の態様を示す図であり、（Ａ）は係合状態にあるプラスチックチャックの断面図を、（Ｂ）はプラスチックチャックの雌爪側の平面図を、各々示している。It is a figure which shows the other aspect of this invention, (A) is sectional drawing of the plastic chuck in the engagement state, (B) has each shown the top view of the female nail | claw side of a plastic chuck. 従来技術の１例を示す図であり、（Ａ）は係合状態にあるプラスチックチャックの断面図を、（Ｂ）はプラスチックチャックの雌爪側の平面図を、各々示している。It is a figure which shows an example of a prior art, (A) is sectional drawing of the plastic chuck in the engagement state, (B) has shown the top view by the side of the female nail | claw of a plastic chuck, respectively. 従来技術の他の例を示す図であり、（Ａ）は係合状態にあるプラスチックチャックの断面図を、（Ｂ）はプラスチックチャックの雌爪側の平面図を、各々示している。It is a figure which shows the other example of a prior art, (A) is sectional drawing of the plastic chuck in an engagement state, (B) has each shown the top view of the female nail | claw side of a plastic chuck.

符号の説明Explanation of symbols

１１ 雄爪
１２ 雌爪
２１、２２ 開口側フランジ部
３１、３２ 窪みからなる凹部 ４１、４２ 溝からなる凹部
５１、５２ リブ
６１、６２ 隆起部 11 Male Claw 12 Female Claw 21, 22 Opening Flange 31, 32 Recessed part 41, 42 Recessed part 51, 52 Rib 61, 62 Raised part

Claims (6)

雄雌一対の鈎爪とその各々のフランジ部とによって構成されたプラスチックチャックにおいて、雄爪の開口側フランジ部と雌爪の開口側フランジ部との何れか一方又は両方の内面に、すべり止め用の凹部を設けたことを特徴とする易開放性プラスチックチャック。 For plastic chucks composed of a pair of male and female claws and their respective flange portions, for slip prevention on the inner surface of one or both of the opening side flange portion of the male nail and the opening side flange portion of the female nail An easily openable plastic chuck characterized in that a recess is provided. 凹部が、円形、楕円形又は三角形以上の多角形の複数個の窪みである請求項１に記載の易開放性プラスチックチャック。 The easily openable plastic chuck according to claim 1, wherein the concave portion is a plurality of hollows having a circular shape, an elliptical shape, or a polygonal shape of a triangle or more. 凹部が、互いに交叉するか又は鈎爪に平行で且つ互いに平行な複数本の溝である請求項１に記載の易開放性プラスチックチャック。 The easily openable plastic chuck according to claim 1, wherein the recesses are a plurality of grooves intersecting each other or parallel to the claw and parallel to each other. 凹部の深さが０．０５〜０．１０ｍｍである、請求項１〜３の何れかに記載の易開放性プラスチックチャック。 The easily openable plastic chuck according to any one of claims 1 to 3, wherein the recess has a depth of 0.05 to 0.10 mm. 凹部が、ローレット加工によって形成されたものである、請求項１〜４の何れかに記載の易開放性プラスチックチャック。 The easily openable plastic chuck according to any one of claims 1 to 4, wherein the recess is formed by knurling. 請求項１〜５の何れかに記載の易開放性プラスチックチャックを備えていることを特徴とする袋体。
A bag body comprising the easily openable plastic chuck according to claim 1.
JP2003360122A 2003-10-21 2003-10-21 Easily-openable plastic chuck and bag equipped with the same Pending JP2005126071A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110311169A1 (en) * 2010-06-22 2011-12-22 Johnson & Son, Inc. Tactile enhancement mechanism for a closure mechanism
US8192085B2 (en) * 2009-08-20 2012-06-05 S.C. Johnson & Son, Inc. Enhancement to a closure mechanism for a reclosable pouch and a method of opening same
CN108455066A (en) * 2018-02-06 2018-08-28 易诺包装（深圳）有限公司 A kind of reusable sealing strip and the packing case being made of it
JP2021028227A (en) * 2019-08-09 2021-02-25 利光 市川 Structure of bag opening part
US20220234786A1 (en) * 2009-05-29 2022-07-28 S.C. Johnson & Son, Inc. Reclosable pouch with an elongate closure mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220234786A1 (en) * 2009-05-29 2022-07-28 S.C. Johnson & Son, Inc. Reclosable pouch with an elongate closure mechanism
US8192085B2 (en) * 2009-08-20 2012-06-05 S.C. Johnson & Son, Inc. Enhancement to a closure mechanism for a reclosable pouch and a method of opening same
US20110311169A1 (en) * 2010-06-22 2011-12-22 Johnson & Son, Inc. Tactile enhancement mechanism for a closure mechanism
US8550716B2 (en) * 2010-06-22 2013-10-08 S.C. Johnson & Son, Inc. Tactile enhancement mechanism for a closure mechanism
CN108455066A (en) * 2018-02-06 2018-08-28 易诺包装（深圳）有限公司 A kind of reusable sealing strip and the packing case being made of it
CN108455066B (en) * 2018-02-06 2024-02-20 易诺包装（深圳）有限公司 Repeatedly usable's sealing strip and by packing box that its constitutes
JP2021028227A (en) * 2019-08-09 2021-02-25 利光 市川 Structure of bag opening part
JP7454322B2 (en) 2019-08-09 2024-03-22 利光 市川 Bag opening structure

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