JPH08133280A - Container with shrink cover - Google Patents
Container with shrink coverInfo
- Publication number
- JPH08133280A JPH08133280A JP6269603A JP26960394A JPH08133280A JP H08133280 A JPH08133280 A JP H08133280A JP 6269603 A JP6269603 A JP 6269603A JP 26960394 A JP26960394 A JP 26960394A JP H08133280 A JPH08133280 A JP H08133280A
- Authority
- JP
- Japan
- Prior art keywords
- tab
- skirt
- notches
- shrink
- lid
- 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
Links
Landscapes
- Closures For Containers (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、シュリンク蓋即ち熱
収縮性を有する蓋を被せた容器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container covered with a shrink lid, that is, a heat-shrinkable lid.
【０００２】[0002]
【従来の技術】二軸延伸合成樹脂（例えばポリスチレ
ン）シートを成形した蓋を容器本体に被せ、これを加熱
すると収縮し、蓋のスカート部が容器本体のフランジに
巻き付いてしっかりと固定される。2. Description of the Related Art A lid formed by molding a biaxially stretched synthetic resin (for example, polystyrene) sheet is put on a container body, and when the lid is heated, the lid shrinks, and a skirt portion of the lid is wrapped around a flange of the container body and firmly fixed.
【０００３】上記のようなシュリンク蓋は、一般に０．
１３〜０．１８mm程度のシートを成形したものであっ
て、フィルムに比較するとかなり厚いため、上面からの
衝撃に対して非常に強く、積み重ねが可能で容器本体の
変形を防止し、蓋も簡単に剥れないなど、種々の利点を
有する。Shrink lids such as the ones described above are generally less than 0.
It is a sheet with a thickness of 13 to 0.18 mm, which is considerably thicker than the film, so it is extremely strong against the impact from the top, stackable and prevents deformation of the container body, and the lid is simple It has various advantages such as not peeling off.
【０００４】しかしながら、上記のように厚いシートを
用い、さらに蓋の周縁部は加熱によって収縮しているた
め、容器本体のフランジ部に巻き付いた部分は、厚みが
より大きくなっている。However, since the thick sheet is used as described above and the peripheral portion of the lid is shrunk by heating, the portion wound around the flange portion of the container body is thicker.
【０００５】そのため、蓋を破壊して開封するのが非常
に困難で、破壊の際に細かい破片が内容物に混入する危
険もある。Therefore, it is very difficult to break and open the lid, and there is also a risk that fine fragments may be mixed into the contents at the time of breaking.
【０００６】[0006]
【発明の課題】そこで、蓋のスカート部周縁にタブを設
け、このタブを手掛りにして開封するようにしたものが
普及している。Therefore, it is popular that a tab is provided on the periphery of the skirt portion of the lid, and the tab is used as a clue to open the lid.
【０００７】しかしながら、このタブによる方法も、蓋
の加熱収縮時にタブが収縮して小さく、固くなるため、
タブを引上げても蓋が簡単には裂けず、場合によっては
タブのみが折れてしまい、開封の手掛りが無くなってし
まうことがある。However, in the method using the tab, the tab shrinks and becomes small and hard when the lid is heated and shrinks.
Even if the tab is pulled up, the lid may not be easily torn, and in some cases only the tab may be broken, and the opening cue may disappear.
【０００８】この発明の課題は、シュリンク蓋をタブに
よってスムーズに開封できるようにすることである。An object of the present invention is to make it possible to smoothly open the shrink lid with the tab.
【０００９】[0009]
【課題の解決手段】上記の課題を解決するために、この
発明においては、シュリンク蓋のスカート部周縁にタブ
を設け、このタブの基部両側にノッチを設け、これらノ
ッチの頂点部近辺を周囲よりも薄くかつ強度を弱くした
のである。In order to solve the above-mentioned problems, in the present invention, tabs are provided on the periphery of the skirt of the shrink lid, notches are provided on both sides of the base of the shrink lid, and the vicinity of the apex of these notches is surrounded by the surroundings. It was also thinner and weaker in strength.
【００１０】[0010]
【作用】タブを引き起こすと、Ｖ字形のノッチの先端部
方向にタブと共にスカート部の一部が持ち上げられる。
そしてＶ字形ノッチの頂点部近辺が薄くかつ弱くなって
いるため、タブと共に持ち上げられると簡単に割れて引
裂きの始点が形成される。When the tab is raised, a part of the skirt is lifted together with the tab toward the tip of the V-shaped notch.
Since the V-shaped notch is thin and weak in the vicinity of the apex, when it is lifted together with the tab, it easily breaks to form a tear starting point.
【００１１】[0011]
【実施例】以下、この発明の実施例を添付図面に基づい
て説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１２】図１は、成形したシュリンク蓋を示す。図
示のように、シュリンク蓋１は、頂壁２とその周縁から
垂下するスカート部３より成り、スカート部３の適当な
個所にタブ４が設けられ、このタブ４の基部両側に、ノ
ッチ５、５が設けられている。FIG. 1 shows a molded shrink lid. As shown in the figure, the shrink lid 1 is composed of a top wall 2 and a skirt portion 3 hanging down from the periphery thereof, and a tab 4 is provided at an appropriate portion of the skirt portion 3, and a notch 5 is formed on each side of the base portion of the tab 4. 5 are provided.
【００１３】前記ノッチ５、５を形成する方法は、シュ
リンク蓋１の成形時に、図２に示すような略三角錐又は
半円錐形の突起５ａ、５ａをタブ４の両側に対応するス
カート部３に形成しておき、このシュリンク蓋１を図３
に示すように、台Ａの上に被せ、シュリンク蓋１の外形
と同形の内形状を有する筒形刃物Ｂを台Ａの方向に降下
させ、突起５ａを切り落すと、図１のようなほぼＶ字形
のノッチ５が形成される。このとき、ノッチ５の頂点部
分には、かなりの衝撃で切刃が突き当るため、頂点部分
は多少白化するほどもろく弱い状態になっている。な
お、突起５ａは、錐形に限らず、三角柱形や半円柱形で
もよい。The method of forming the notches 5 and 5 is such that, when the shrink lid 1 is formed, the skirt portion 3 corresponding to both sides of the tab 4 is provided with substantially triangular pyramid or semi-conical projections 5a and 5a as shown in FIG. The shrink lid 1 is formed in FIG.
As shown in FIG. 1, when the cylindrical blade B having the same inner shape as the outer shape of the shrink lid 1 is put down on the base A and lowered in the direction of the base A, and the projection 5a is cut off, as shown in FIG. A V-shaped notch 5 is formed. At this time, since the cutting edge hits the apex portion of the notch 5 with a considerable impact, the apex portion is in a fragile and weak state so as to be slightly whitened. The protrusion 5a is not limited to the conical shape, but may be a triangular prism shape or a semi-cylindrical shape.
【００１４】上記ノッチ５は、図４に示すようなＶ字形
に近い形状のほか、図５に示すように、一辺がほぼ垂直
の直角三角形に近いものでもよく、その他、Ｕ字形に近
い形状でもよい。The notch 5 may have a shape close to a V-shape as shown in FIG. 4, or may have a shape close to a right-angled triangle whose one side is almost vertical as shown in FIG. 5, or may have a shape close to a U-shape. Good.
【００１５】また、タブ４は、その中心線Ｃが、シュリ
ンク蓋１の材料である二軸延伸合成樹脂シートの延伸方
向とほぼ一致しているのが望ましい。Further, it is desirable that the center line C of the tab 4 substantially coincides with the stretching direction of the biaxially stretched synthetic resin sheet which is the material of the shrink lid 1.
【００１６】上記シュリンク蓋１を、図６に示すよう
に、容器本体１０に被せる。容器本体１０は、底壁１１
及びその周縁から立ち上る周壁１２を有し、周壁１２の
上縁外周にはフランジ１３が設けられている。The shrink lid 1 is placed on the container body 10 as shown in FIG. The container body 10 has a bottom wall 11
And a peripheral wall 12 rising from the periphery thereof, and a flange 13 is provided on the outer periphery of the upper edge of the peripheral wall 12.
【００１７】この容器本体１０にシュリンク蓋１を被せ
て、例えば上下のベルトＤ、Ｅで挟持し、熱風トンネル
中を通過させ、シュリンク蓋１を熱収縮させると、図７
に示すように、蓋１のスカート部３が容器本体１０のフ
ランジ１３を把持するように巻き込み、しっかりと固定
される。When the container body 10 is covered with the shrink lid 1 and is sandwiched by, for example, upper and lower belts D and E, and is passed through a hot air tunnel to shrink the shrink lid 1 by heat, as shown in FIG.
As shown in, the skirt portion 3 of the lid 1 is rolled up so as to grip the flange 13 of the container body 10, and is firmly fixed.
【００１８】この熱収縮によって、図８に示すように、
ノッチ５の両側部分５ｂは、外側即ちＶ字形の頂角が開
く方向に引張られて相対的に肉厚となるが、頂点部の近
辺５ｃは、引き込んでくる余剰部分がないので相対的に
薄肉となる。Due to this heat shrinkage, as shown in FIG.
Both side portions 5b of the notch 5 are pulled to the outside, that is, in the direction in which the apex angle of the V-shape is opened to be relatively thick, but the vicinity 5c of the apex portion is relatively thin because there is no extra portion to be pulled in. Becomes
【００１９】開封の際に、タブ４を指で引き上げると、
ノッチ５、５の頂点部分に力が集中する。この頂点部分
は、薄肉でかつ前述のようにもろく弱い状態になってい
るため、簡単に割れ目が生じて引裂きの始点となり、そ
のままタブ４を引張ることによって引裂き線が延びてい
く。前述のように、タブ４を延伸方向に設けておくと、
引裂き線が長く延びるため、開封がより容易に行なわれ
る。When the tab 4 is pulled up with a finger when opening,
The force concentrates on the tops of the notches 5 and 5. Since this apex portion is thin and in a brittle and weak state as described above, a crack easily occurs and becomes a starting point of tearing, and the tear line extends by pulling the tab 4 as it is. As described above, when the tab 4 is provided in the stretching direction,
The tear line extends longer, making opening easier.
【００２０】なお、容器本体１０及びそれに対応するシ
ュリンク蓋１の形状は、図示のような四角形に限らず、
その他の多角形、円形、楕円形など適宜選択可能であ
る。The shape of the container body 10 and the shrink lid 1 corresponding thereto is not limited to the quadrangle as shown,
Other polygons, circles, ellipses, etc. can be appropriately selected.
【００２１】また、シュリンク蓋１の頂壁２は、必ずし
も平坦でなくてもよく、膨出部を設けたり、窪みを設け
るなど、種々の形状、構造を採用することができる。The top wall 2 of the shrink lid 1 does not necessarily have to be flat, and various shapes and structures such as a bulged portion and a recess can be adopted.
【００２２】[0022]
【効果】この発明によれば、以上のように、シュリンク
蓋のタブの基部にノッチを設け、このノッチの頂点部分
を薄肉にしかつ強度を弱くしたので、タブを引き上げる
ことによって簡単に頂点部分が割れ、引裂きの始点が確
実に形成される。As described above, according to the present invention, since the notch is provided at the base of the tab of the shrink lid and the apex portion of the notch is thinned and the strength is weakened, the apex portion can be easily removed by pulling up the tab. The starting point of cracking and tearing is surely formed.
【００２３】従って、タブやその周囲が破損して開封が
できなくなったり、破片が内容物に混入するようなこと
も防止できる。Therefore, it is possible to prevent the tabs and their surroundings from being damaged so that the tabs cannot be opened, and fragments can be prevented from being mixed into the contents.
【図１】成形したシュリンク蓋を示す斜視図FIG. 1 is a perspective view showing a molded shrink lid.
【図２】同上のノッチを形成するためのタブ部分を示す
拡大斜視図FIG. 2 is an enlarged perspective view showing a tab portion for forming the above notch.
【図３】シュリンク蓋にノッチを形成する方法を示す断
面図FIG. 3 is a sectional view showing a method of forming a notch in a shrink lid.
【図４】ノッチとタブの一例を示す拡大正面図FIG. 4 is an enlarged front view showing an example of notches and tabs.
【図５】ノッチとタブの他の例を示す拡大正面図FIG. 5 is an enlarged front view showing another example of notches and tabs.
【図６】シュリンク蓋を容器本体に取り付ける方法を示
す側面図FIG. 6 is a side view showing a method of attaching the shrink lid to the container body.
【図７】シュリンク蓋を取り付けた容器の斜視図FIG. 7 is a perspective view of a container with a shrink lid attached.
【図８】同上のタブ部分の拡大正面図FIG. 8 is an enlarged front view of the tab portion of the above.
１ シュリンク蓋 ２ 頂壁 ３ スカート部 ４ タブ ５ ノッチ ５ａ 突起 ５ｂ 側部 ５ｃ 頂点部近辺 １０ 容器本体 １１ 底壁 １２ 周壁 １３ フランジ Ａ 台 Ｂ 刃物 Ｃ 中心線 Ｄ、Ｅ ベルト 1 Shrink lid 2 Top wall 3 Skirt part 4 Tab 5 Notch 5a Protrusion 5b Side part 5c Near vertex 10 Container body 11 Bottom wall 12 Circumferential wall 13 Flange A stand B Cutter C Centerline D, E Belt
Claims (1)
周壁の上縁開口部の周縁にフランジを有する容器本体
と、頂壁及びこの周縁から垂下するスカート部を前記フ
ランジに巻き込んだシュリンク蓋から成る容器におい
て、前記スカート部の周縁に設けたタブの基部両側にノ
ッチを設け、これらノッチの頂点部近辺を周囲より薄く
かつ強度を弱くしたことを特徴とするシュリンク蓋付き
容器。1. A bottom wall and a peripheral wall rising from the bottom wall,
A container main body having a flange on the peripheral edge of the upper edge opening of the peripheral wall, and a container comprising a top wall and a skirt portion hanging down from the peripheral edge on the flange, and a base of a tab provided on the peripheral edge of the skirt portion. A container with a shrink lid, characterized in that notches are provided on both sides, and the vicinity of the apexes of these notches is thinner and weaker than the surroundings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26960394A JP3694541B2 (en) | 1994-11-02 | 1994-11-02 | Shrink lid forming method and container using the lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26960394A JP3694541B2 (en) | 1994-11-02 | 1994-11-02 | Shrink lid forming method and container using the lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08133280A true JPH08133280A (en) | 1996-05-28 |
| JP3694541B2 JP3694541B2 (en) | 2005-09-14 |
Family
ID=17474668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26960394A Expired - Lifetime JP3694541B2 (en) | 1994-11-02 | 1994-11-02 | Shrink lid forming method and container using the lid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3694541B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001322657A (en) * | 2000-05-15 | 2001-11-20 | Asahi Kasei Corp | Molded sheet for shrink cover and packaging body with shrink cover |
| JP2002037289A (en) * | 2000-07-28 | 2002-02-06 | Asahi Kasei Corp | Laminate molding sheet for shrink lid and package with the shrink lid |
-
1994
- 1994-11-02 JP JP26960394A patent/JP3694541B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001322657A (en) * | 2000-05-15 | 2001-11-20 | Asahi Kasei Corp | Molded sheet for shrink cover and packaging body with shrink cover |
| JP4615672B2 (en) * | 2000-05-15 | 2011-01-19 | 旭化成ケミカルズ株式会社 | Molded sheet for shrink lid and package with shrink lid |
| JP2002037289A (en) * | 2000-07-28 | 2002-02-06 | Asahi Kasei Corp | Laminate molding sheet for shrink lid and package with the shrink lid |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3694541B2 (en) | 2005-09-14 |
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