JP2001171650A - Packaging plastic sheet - Google Patents

Packaging plastic sheet

Info

Publication number
JP2001171650A
JP2001171650A JP35168499A JP35168499A JP2001171650A JP 2001171650 A JP2001171650 A JP 2001171650A JP 35168499 A JP35168499 A JP 35168499A JP 35168499 A JP35168499 A JP 35168499A JP 2001171650 A JP2001171650 A JP 2001171650A
Authority
JP
Japan
Prior art keywords
sheet
folded
bending
plastic sheet
packaging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP35168499A
Other languages
Japanese (ja)
Other versions
JP3996310B2 (en
Inventor
Eiji Kodama
栄司 児玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP35168499A priority Critical patent/JP3996310B2/en
Publication of JP2001171650A publication Critical patent/JP2001171650A/en
Application granted granted Critical
Publication of JP3996310B2 publication Critical patent/JP3996310B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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  • Cartons (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent the trouble of warping integrally sheet sections close to the left and the right and bending the whole of a sheet while being bonded when both sides of the two-folded sheet on which the front sheet side and back sheet side bonded and overlapped together are pressed to open the sheet into the box shape. SOLUTION: Paste margins 8 are continuously connected together on side ends of back sheet sections of the sheet, on which left and right side sheet sections 3 and 4 and a back sheet section 2 are continuously connected on one side or both sides of the front sheet section 1, and folds 10 and 10a are formed between respective sheet sections and the paste margins, and folds are so folded as to face the front sheet section and the back sheet section facing each other to form the sheet into the two-folded state, and the folds 10a on the paste margins are folded to provide the bending set thereon, and the paste margins are bonded on the other open side of the sheet, and the folds 10a provided with the bending set and the paste margins are positioned on an interface middle section on one folded side of the sheet in the two-folded state to form a clearance having the width wider on the middle section than those of other parts is provided on the two-folded state sheet.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、化粧品、菓子類、
その他の適宜物品を収納するのに好便なプラスチックケ
ースとなし得る打ち抜きにより形出可能な包装用プラス
チックシートに関する。
TECHNICAL FIELD The present invention relates to cosmetics, confectionery,
The present invention relates to a plastic sheet for packaging that can be formed by punching and can be formed into a convenient plastic case for storing other appropriate articles.

【0002】[0002]

【従来の技術】商品を収納したプラスチックケースは、
商品を保護しつつ見栄えよく展示するために、適度な強
度(剛性)を有し、透明度の高いプラスチックシート、
例えばポリエチレンテレフタレート(PET)、ポリプ
ロピレン(PP)、特にアモルファスポリエチレンテレ
フタレート(A−PET)などによって成形されたシー
トを打ち抜き形出した上、一部を貼り合わせをして作ら
れている。このシートは、例えば図3に示すごとく、正
面板部51、その両側の左右側面板部53,54、右側
面板部他側の背面板部52、その一側の糊代55を、そ
れぞれ折曲線56を介して連設し、正面板部51と右側
面板部53とを平坦状とし、左側面板部54を折返して
正面板部51に重合し、背面板部52を折返して糊代5
5と共に平坦状とし、糊代55を左側面板部54に接着
して二つ折り状態の包装用プラスチックシートとして形
成しており、これが多数枚積層保管され、ユーザー(食
品会社等のプラスチックケース使用者)に提供されてい
た。この包装用プラスチックシートは、自動製函機によ
ってプラスチックケースに組み立てられた後、商品を収
納し、商品販売の用に供されている。ケース組み立て
は、自動製函機で、先ず上記二つ折り状態の包装用プラ
スチックシートの片面(下面)を吸盤Pで吸い付け、次
いでケース寸法に合わせたガイドG,G間に移動させ、
狭まるガイドにより当該シートを左右両側から押圧して
折曲線を折曲させ、板部を起こして立体化し、箱形とな
るようにしていた。
2. Description of the Related Art A plastic case containing goods is
In order to protect and display products while protecting them, plastic sheets with appropriate strength (rigidity) and high transparency,
For example, a sheet formed of polyethylene terephthalate (PET), polypropylene (PP), particularly amorphous polyethylene terephthalate (A-PET), or the like is punched out and formed, and a part of the sheet is laminated. As shown in FIG. 3, for example, this sheet is formed by folding a front plate portion 51, left and right side plate portions 53 and 54 on both sides thereof, a back plate portion 52 on the other side of the right side plate portion, and a glue allowance 55 on one side thereof. The front plate portion 51 and the right side plate portion 53 are made flat, the left side plate portion 54 is folded back and overlapped with the front plate portion 51, and the back plate portion 52 is folded back to form a glue allowance 5
5, and a glue allowance 55 is adhered to the left side plate portion 54 to form a folded plastic sheet in a folded state. A large number of these sheets are stacked and stored, and a user (a user of a plastic case such as a food company). Was provided to. The plastic sheet for packaging is assembled into a plastic case by an automatic box making machine, and then stores the goods and is used for selling the goods. The case is assembled by an automatic box making machine. First, one side (lower surface) of the folded plastic sheet is sucked with a suction cup P, and then moved between the guides G, G according to the case size.
The sheet is pressed from the left and right sides by the narrowing guide to bend the folding curve, raise the plate portion, and make it three-dimensional, so that it becomes a box shape.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、平坦状
となった二つ折り状態の包装用プラスチックシートは、
正面板部51側と背面板部52側とが密着して重合して
いる上に、吸盤Pで一方向に吸い付けているために、板
部が箱状に開口できず、左右両側からの押圧を受けて、
左右寄りの板部が図3のごとく一体的に上方に反り、シ
ート全体が密着したまま湾曲してしまうトラブルが発生
することがあった。発生率は数%とも言われている。本
発明は、このような箱形に成形できないトラブルを発生
させることなく、確実な箱形成を可能にしたプラスチッ
クケースとするための打ち抜きにより形出可能な包装用
プラスチックシートを提供せんとするものである。
However, a flat folded plastic sheet for wrapping is a problem.
The front plate 51 and the rear plate 52 are in close contact with each other and overlap with each other. In addition, since the suction cup P sucks the plate in one direction, the plate cannot be opened in a box shape. Under pressure,
As shown in FIG. 3, the left and right plate portions may be integrally warped upward, and a problem may occur in which the entire sheet is bent while keeping the entire sheet in close contact. The incidence is said to be several percent. The present invention aims to provide a packaging plastic sheet that can be formed by punching to form a plastic case that enables reliable box formation without causing troubles that cannot be formed into a box shape. is there.

【0004】[0004]

【課題を解決するための手段】上記課題を解決するため
に、本発明は、多角形の箱を組み立て形成するための包
装用プラスチックシートであって、多角形の各面を構成
する板部間に折曲線を形成すると共に、シート面の開放
一側端に折曲線を介して糊代を連設し、このシートを二
つ折り状態とすると共に、重合状態の一方の面内中間部
に位置する折曲線を折曲してこの折曲線に曲げ癖を付与
し、糊代はシートの開放他側端に接着して、二つ折り状
態の中間部ほど広い隙間が生じるようにして包装用プラ
スチックシートを構成したことを特徴とするものであ
る。また、本発明は、正面板部の一側乃至両側に左右側
面板部、背面板部を連設したシートの一側端に糊代を連
設し、各板部及び糊代間に折曲線を形成し、正面板部と
背面板部とが対向するように折曲線を折曲してシートを
二つ折り状態に形成すると共に、糊代の折曲線を折曲し
て曲げ癖を付与し、糊代は上記シートの開放した他側端
部に接着し、この曲げ癖付き折曲線と糊代が上記二つ折
り状態の一方の面内中間部に位置することにより、二つ
折り状態のシートに中間部ほど広い隙間が生じるように
して包装用プラスチックシートとしたことも特徴とす
る。
In order to solve the above-mentioned problems, the present invention relates to a plastic sheet for packaging for assembling and forming a polygonal box. In addition to forming a fold curve, an adhesive margin is continuously provided at one open end of the sheet surface via a fold curve, and the sheet is folded in two, and is located at an intermediate portion in one of the superposed states. The folding curve is bent to give a bending habit to the folding curve, and the adhesive margin is bonded to the other open end of the sheet, so that a wider gap is generated in the middle of the folded state, and the plastic sheet for packaging is formed. It is characterized by having comprised. Further, the present invention provides a method in which a margin is continuously provided at one side end of a sheet having a left and right side plate part and a rear plate part connected to one side or both sides of a front plate part, and a folding curve is provided between each plate part and the paste margin. To form a sheet into two folds by bending the fold curve so that the front plate portion and the back plate portion face each other, and bending the fold curve of the glue allowance to impart a bending habit, The glue is adhered to the open end of the sheet on the other side, and the bending curve with the curl and the glue margin are located in the middle of one of the two-folded states, so that the sheet is in the middle of the folded sheet. It is also characterized in that a plastic sheet for packaging is formed such that a wider gap is generated in the portion.

【0005】上記構成による包装用プラスチックシート
は、糊代を連設した折曲線に付与された曲げ癖により、
静置状態において、中間部に折曲線が形成された二つ折
り状態の一方の面が他面に対して中間部ほど浮き上が
り、広い隙間を形成するように作用することになるの
で、自動製函機のガイドなどによってシート両側が押圧
されれば、隙間が一層広がるように二つ折り状態のシー
トが開口していき、確実に箱形が作られることになる。
[0005] The plastic sheet for packaging according to the above configuration has a bending habit given to a folding curve in which a glue margin is continuously provided.
In the stationary state, one surface of the two-fold state in which the folding curve is formed in the middle part rises toward the other surface with respect to the other surface, and acts so as to form a wide gap. When both sides of the sheet are pressed by the guide or the like, the folded sheet is opened so that the gap is further widened, and a box shape is surely formed.

【0006】[0006]

【発明の実施の形態】以下、本発明を一実施例として示
した図面によって説明する。図1はプラスチックシート
の一例を示す展開正面図、図2はその二つ折り状態と箱
形成状態を示している。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing one embodiment. FIG. 1 is a developed front view showing an example of a plastic sheet, and FIG. 2 shows a folded state and a box forming state.

【0007】図1のプラスチックシートは、正面板部1
の両側に左右側面板部3,4及び背面板部2をそれぞれ
折曲線10を介して連設すると共に、正面板部1の上端
縁及び背面板部2の下端縁から折曲線10を介してそれ
ぞれに開閉板部5を連設し、その先端に折曲線10を介
してそれぞれに差込み片6を延設し、左右側面板部3,
4の上下端縁から折曲線10を介してそれぞれに折込み
片7を延設し、背面板部2の開放側の側端に折曲線10
aを介して糊代8を形成してある。開閉板部5と差込み
片6との間は、左右両側部から内方に切込み9を形成
し、この切込み9はその内端部が若干開閉板部内方に向
かうように折曲して形成し、或いは図示していないが外
端から内端に向かって内傾斜状態に形成し、両切込み
9,9の内端間に折曲線10を形成してある。
The plastic sheet shown in FIG.
The left and right side plate portions 3 and 4 and the rear plate portion 2 are connected to each other via a folding curve 10 on both sides of the front plate portion 1 and the lower edge of the front plate portion 1 and the lower edge of the rear plate portion 2 via the folding curve 10. Opening / closing plate portions 5 are connected to each other, and insertion pieces 6 are respectively extended at the ends of the opening / closing portions 10 via folding curves 10.
The folding pieces 7 are respectively extended from the upper and lower edges of the rear plate 4 via folding curves 10, and the folding
A paste margin 8 is formed via a. Between the opening / closing plate portion 5 and the insertion piece 6, cuts 9 are formed inward from both right and left sides, and the cuts 9 are formed by bending the inner ends thereof slightly inwardly. Alternatively, although not shown in the drawings, the inner end is formed so as to be inclined from the outer end to the inner end, and a fold curve 10 is formed between the inner ends of both cuts 9.

【0008】而して、正面板部1と左側面板部3とは平
坦状のままとし、これらに両外側の折曲線10,10を
折曲して右側面板部4と背面板部2を重合させる一方、
糊代8と背面板部2との間に形成した折曲線10aを折
曲して、この折曲線10aに曲げ癖を付与し、その上で
糊代8を右側面板部4の開放側の側端部に接着し、図2
(A)に示す二つ折り状態の包装用プラスチックシート
を形成する。曲げ癖が付与された折曲線10aは、背面
板部2と右側面板部4の間、すなわち二つ折り状態の一
方の面内の中間部に位置することになり、曲げ癖による
応力がシートに残存するので、二つ折り状態の一方の面
の中間部を対向する他方の面から離隔する方向に適度な
付勢を与えることになる。この包装用プラスチックシー
トを両側から押圧すれば、図2(B)のように確実に開
口して箱組み立てが行える。
The front plate portion 1 and the left side plate portion 3 are kept flat, and the right and left side plate portions 4 and the rear plate portion 2 are overlapped by bending both outer folding curves 10 and 10. While
The bending curve 10a formed between the glue margin 8 and the back plate part 2 is bent to give a bending habit to the folding curve 10a, and then the glue margin 8 is moved to the open side of the right side plate part 4. Glued to the edge, Figure 2
A packaging plastic sheet in a folded state shown in (A) is formed. The bending curve 10a to which the bending habit is given is located between the back plate portion 2 and the right side plate portion 4, that is, an intermediate portion in one of the two folded states, and the stress due to the bending habit remains on the sheet. Therefore, an appropriate bias is applied in a direction in which the intermediate portion of one surface of the two-folded state is separated from the other opposing surface. When the plastic sheet for packaging is pressed from both sides, the box can be securely opened and assembled as shown in FIG. 2 (B).

【0009】折曲線10aの曲げ癖は、接着前の曲げ癖
付与状態で、背面板部2の延長面に対して糊代8が角度
5〜45度前後の折曲状態となるようにするのが好まし
い。上記曲げ癖の角度には特に限定はないが、二つ折り
状態において重合する両面間に若干の隙間が維持され得
るように付与する。0.3mm厚A−PETシートで約
15度の曲げ癖を付与して糊代を接着した二つ折り状態
の包装用プラスチックシートの中間部には、約5mmの
隙間が形成された。この包装用プラスチックシートを用
いて自動製函機で箱組み立てを行ったところ、1万個組
み立て中、トラブル発生は0であった。これに対し、曲
げ癖を付与しない状態で糊代を接着した包装用プラスチ
ックシートを用いて同一自動製函機で箱組み立てを行っ
たところ、1万個中、3%が反り返って箱組み立て不能
のトラブルを引き起こした。
The bending habit of the bending curve 10a is such that the glue margin 8 is bent at an angle of about 5 to 45 degrees with respect to the extended surface of the back plate portion 2 in a bending habit applied state before bonding. Is preferred. There is no particular limitation on the angle of the bending habit, but the angle is provided so that a slight gap can be maintained between both surfaces to be polymerized in the folded state. A gap of about 5 mm was formed in the middle part of the two-folded packaging plastic sheet to which a 0.3 mm thick A-PET sheet was given a bending habit of about 15 degrees and a margin was adhered. When a box was assembled with an automatic box making machine using the plastic sheet for packaging, no trouble occurred during the assembly of 10,000 pieces. On the other hand, when the same automatic box making machine was used to assemble a box using a plastic sheet for packaging to which a glue margin was adhered without giving a bending habit, 3% of 10,000 pieces warped and the box could not be assembled. Caused trouble.

【0010】なお上記において、組立てたケースの向き
は任意であり、直方体、立方体の形態、多角形の角数も
任意であり、いずれの面が正面となってもよい。また、
正面板部、背面板部のいずれから開閉板部を連設しても
よく、また、上下両側の開閉板部の形態を互いに異なる
形態とし、或いは、各板部、各片を図示とは異なる形態
として形成してもよいものである。また、折曲線10,
10aは、V字溝、台形溝、U字溝或いは凹凸繰返し溝
など任意溝形とし、断続筋或いは連続筋のいずれでもよ
く、ミシン目状としてもよい。
In the above, the orientation of the assembled case is arbitrary, the shape of a rectangular parallelepiped or a cube, the number of polygons is also arbitrary, and any surface may be the front. Also,
Opening / closing plate portions may be provided continuously from any of the front plate portion and the rear plate portion, and the form of the opening / closing plate portions on the upper and lower sides may be different from each other, or each plate portion, each piece may be different from the illustration. It may be formed as a form. In addition, the folding curve 10,
10a is an arbitrary groove shape such as a V-shaped groove, a trapezoidal groove, a U-shaped groove, or a concave and convex repeated groove, and may be either an intermittent or continuous line or a perforated line.

【0011】[0011]

【発明の効果】このようにして、本発明によれば、平坦
状の二つ折り状態の包装用プラスチックシートであって
も、その中間部において一方の面が他方の面から離隔す
る方向の適度な付勢が与えられたものとして提供され、
両側からの軽い押圧によって確実に開口し、箱組み立て
が容易かつ確実に行えるものとなる。この包装用プラス
チックシートは糊代を折曲して折曲線に折り癖を付与す
るだけで、成形効率に特段の負担を与えることなく、ま
た、収納、運搬状態において何ら嵩張ることなく積層が
可能であり、使用の利便性を向上させることができる。
As described above, according to the present invention, even in the case of a flat folded plastic sheet for packaging, an intermediate portion thereof has an appropriate direction in which one surface is separated from the other surface. Provided as energized,
Opening is assured by light pressing from both sides, and box assembly can be performed easily and reliably. This packaging plastic sheet can be laminated without bending the glue curve and imparting a bending habit to the bending curve, without imposing a special burden on the molding efficiency, and without any bulkiness in the storage and transportation state. Yes, convenience of use can be improved.

【図面の簡単な説明】[Brief description of the drawings]

【図1】一例としての包装用プラスチックシートの展開
正面図である。
FIG. 1 is a developed front view of a plastic sheet for packaging as an example.

【図2】図1のシートを二つ折り状態とした本発明に係
る包装用プラスチックシートの断面状態図であり、
(A)は二つ折り状態図、(B)は箱組み立て過程図。
2 is a cross-sectional view of the plastic sheet for packaging according to the present invention in which the sheet of FIG. 1 is folded in two,
(A) is a folded state diagram, (B) is a box assembly process diagram.

【図3】図2と対比する従来のプラスチックケ−スの断
面状態図である。
FIG. 3 is a sectional view of a conventional plastic case as compared with FIG.

【符号の説明】[Explanation of symbols]

1 正面板部 2 背面板部 3,4 左右側面板部 5 開閉板部 6 差込み片 7 折込み片 8 糊代 9 切込み 10,10a 折曲線 DESCRIPTION OF SYMBOLS 1 Front plate part 2 Back plate part 3, 4 Left and right side plate part 5 Opening and closing plate part 6 Insertion piece 7 Folding piece 8 Glue allowance 9 Cut 10 and 10a Fold curve

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 多角形の箱を組み立て形成するための包
装用プラスチックシートであって、多角形の各面を構成
する板部間に折曲線を形成すると共に、シート面の開放
一側端に折曲線を介して糊代を連設し、このシートを二
つ折り状態とすると共に、重合状態の一方の面内中間部
に位置する折曲線を折曲してこの折曲線に曲げ癖を付与
し、糊代はシートの開放他側端に接着して、二つ折り状
態の中間部ほど広い隙間が生じるようにしてなる構成を
有する包装用プラスチックシート。
1. A packaging plastic sheet for assembling and forming a polygonal box, wherein a folding curve is formed between plate portions constituting each surface of the polygonal shape, and a sheet is formed at one open end of the sheet surface. A glue margin is continuously provided through a folding curve, and the sheet is folded in two, and a folding curve located at an intermediate portion in one plane in a superposed state is bent to impart a bending habit to the folding curve. A plastic sheet for packaging having a structure in which the adhesive margin is bonded to the other open end of the sheet so that a wider gap is generated in the middle of the folded state.
【請求項2】 正面板部の一側乃至両側に左右側面板
部、背面板部を連設したシートの一側端に糊代を連設
し、各板部及び糊代間に折曲線を形成し、正面板部と背
面板部とが対向するように折曲線を折曲してシートを二
つ折り状態に形成すると共に、糊代の折曲線を折曲して
曲げ癖を付与し、糊代は上記シートの開放した他側端部
に接着し、この曲げ癖付き折曲線と糊代が上記二つ折り
状態の一方の面内中間部に位置することにより、二つ折
り状態のシートに中間部ほど広い隙間が生じるようにし
てなる構成を有する包装用プラスチックシート。
2. A glue margin is continuously provided on one side end of a sheet provided with left and right side plate parts and a back plate part on one side or both sides of a front plate part, and a folding curve is formed between each plate part and the glue margin. Forming and folding the curved line so that the front plate portion and the rear plate portion face each other to form the sheet into two folds, and bending the bent line of the glue allowance to impart a bending habit, The margin is adhered to the open end of the other side of the sheet, and the bending curve with the bending habit and the glue margin are located at the intermediate part in one plane of the two-folded state. A plastic sheet for packaging having a configuration in which a wider gap is formed.
JP35168499A 1999-12-10 1999-12-10 Method for forming plastic sheet for packaging Expired - Fee Related JP3996310B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35168499A JP3996310B2 (en) 1999-12-10 1999-12-10 Method for forming plastic sheet for packaging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35168499A JP3996310B2 (en) 1999-12-10 1999-12-10 Method for forming plastic sheet for packaging

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JP2001171650A true JP2001171650A (en) 2001-06-26
JP3996310B2 JP3996310B2 (en) 2007-10-24

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Country Link
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5926709U (en) * 1982-08-09 1984-02-18 シ−ケ−デイ株式会社 Folding carton crease removal transfer device
JPH046037A (en) * 1990-04-13 1992-01-10 Mitsubishi Plastics Ind Ltd Cylinder for foldable box
JPH1191727A (en) * 1997-09-22 1999-04-06 Toppan Printing Co Ltd Method for forming quadrangular tubular container made of paper for packaging liquid
JPH11130050A (en) * 1997-11-04 1999-05-18 Mitsubishi Plastics Ind Ltd Packaging plastic-sheet and packaging plastic-case

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5926709U (en) * 1982-08-09 1984-02-18 シ−ケ−デイ株式会社 Folding carton crease removal transfer device
JPH046037A (en) * 1990-04-13 1992-01-10 Mitsubishi Plastics Ind Ltd Cylinder for foldable box
JPH1191727A (en) * 1997-09-22 1999-04-06 Toppan Printing Co Ltd Method for forming quadrangular tubular container made of paper for packaging liquid
JPH11130050A (en) * 1997-11-04 1999-05-18 Mitsubishi Plastics Ind Ltd Packaging plastic-sheet and packaging plastic-case

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