JP2565097Y2 - Easy-to-open sealed container - Google Patents
Easy-to-open sealed containerInfo
- Publication number
- JP2565097Y2 JP2565097Y2 JP1989086994U JP8699489U JP2565097Y2 JP 2565097 Y2 JP2565097 Y2 JP 2565097Y2 JP 1989086994 U JP1989086994 U JP 1989086994U JP 8699489 U JP8699489 U JP 8699489U JP 2565097 Y2 JP2565097 Y2 JP 2565097Y2
- Authority
- JP
- Japan
- Prior art keywords
- distance
- opening edge
- opening
- constant width
- tab
- 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.)
- Expired - Lifetime
Links
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- Packages (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本発明は、カップ状容器本体の開口縁に可撓性蓋体を
ヒートシールした密封容器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed container in which a flexible lid is heat-sealed at an opening edge of a cup-shaped container main body.
従来技術及びその問題点 この種の容器は、第３図に示すようにタブ（４）を把
持して蓋体（１）をヒートシール部（６）で本体（２）
から引き剥がして開封される。近年、充填物の密封に対
する安全性向上の要求が高度化するのに伴なって、容器
本体と蓋体との封着強度は増大化する傾向にある。この
ため、開封が困難になるという問題があった。2. Description of the Related Art As shown in FIG. 3, a container of this kind holds a tab (4) and holds a lid (1) with a heat seal portion (6) to form a main body (2).
Peeled off and opened. In recent years, the sealing strength between the container body and the lid tends to increase as the demand for improving the safety of sealing the filling material becomes more sophisticated. For this reason, there was a problem that opening was difficult.
この種の容器の開封を行なう際は、一方の手で該容器
全体を支持し、他方の手で蓋体の延長部をなすタブを把
持し、容器本体の方向へ引張力を加えて蓋体を容器本体
から引き剥がすことになる。この開封時に最大の抵抗を
示すのは、剥離線（シール部の剥離域と非剥離域との境
界線）の長さが最大となるときであり、第４図に示す容
器の場合、開封初期において剥離線がＡ−Ａ′線に到達
したときである（以下、この時の抵抗を開封初期抵抗と
いう）。第４図に示すような円形開口部を有する容器の
場合、内径Ｄとシール幅ｈが大きいほど開封初期抵抗は
大きくなる。このことから、開封初期抵抗を小さくする
ための工夫として、第5A図及び第5B図に示すように、蓋
体タブのある容器本体開口縁部分を局部的に小さな曲率
半径とし該剥離幅を狭くすることが行なわれていた。し
かしながら、このような手段では、封着強度の増加に対
して開封初期抵抗を抑制するには限界があった。When opening this kind of container, one hand supports the entire container, the other hand grips a tab that forms an extension of the lid, and applies a tensile force in the direction of the container body to cover the container. From the container body. The maximum resistance at the time of opening is when the length of the peeling line (the boundary line between the peeling area and the non-peeling area of the seal portion) is the maximum, and in the case of the container shown in FIG. At the time when the peeling line reached the AA 'line (hereinafter, the resistance at this time is referred to as the initial opening resistance). In the case of a container having a circular opening as shown in FIG. 4, the initial opening resistance increases as the inner diameter D and the seal width h increase. From this, as a device for reducing the initial opening resistance, as shown in FIGS.5A and 5B, the opening edge portion of the container main body having the lid tab is locally made to have a small radius of curvature, and the peeling width is reduced. Was being done. However, with such means, there is a limit in suppressing the initial opening resistance against an increase in sealing strength.
本考案の目的は、十分な封着強度を有し、しかも開封
が容易な蓋体を備えた前述のタイプの密封容器を提供す
ることにある。An object of the present invention is to provide a sealed container of the type described above, which has a sufficient sealing strength and is provided with a lid which can be easily opened.
問題点を解決するための手段 本考案の前記目的は、カップ状容器本体と、該容器本
体上部開口縁にヒートシールされて該開口を覆うと共
に、該開口縁外周から垂下した側周部を有した可撓性蓋
体とを備え、該蓋体の側周部は前記開口縁外周から略一
定の長さで垂下した定幅部と、該定幅部より長く垂下し
たタブとを備え、該タブはその両側縁の上端が上記定幅
部の下縁に接続し且つ下端から上方に延びる切り込みに
より２個の引張片に分割され、該切り込み上端は前記開
口縁外周の手前で距離Ｘを残して終結し、該距離Ｘは前
記定幅部の垂下距離Ｙよりも短く設定されていることを
特徴とする密封容器により達成される。Means for Solving the Problems The object of the present invention is to provide a cup-shaped container main body and a side peripheral portion which is heat-sealed at an upper opening edge of the container main body to cover the opening and hangs down from an outer periphery of the opening edge. A flexible lid body, a side peripheral portion of the lid body has a constant width portion hanging down from the outer periphery of the opening edge at a substantially constant length, and a tab hanging down longer than the constant width portion, The tab is divided into two tensile pieces by cuts having upper ends of both side edges connected to the lower edge of the constant width portion and extending upward from the lower end, and the cut upper ends have a distance X before the outer periphery of the opening edge. The distance X is set shorter than the hanging distance Y of the constant width portion.
実施例 次に、本考案の実施例について説明する。Next, an embodiment of the present invention will be described.
第１図は、本考案の１実施例に係る密封容器を示して
いる。該密封容器は、蓋体（１）とカップ形状に形成さ
れた容器本体（２）とからなる。蓋体（１）は、容器本
体開口を覆う部分と開口縁外周に沿って垂下した側周部
（３）とを有し、該開口縁（６）をヒートシール加工に
より封着されている。側周部（３）は、前記開口縁外周
から略々一定の長さで垂下した定幅部（31）と、該定幅
部（31）より長く垂下したタブ（４）とを備え、該タブ
（４）の両側縁の上端は上記定幅部（31）の下縁に接続
している。該タブ（４）は下端から上方へ延びる切り込
み（５）により２個の引張片（41）、（42）に分割され
ている。また切り込み（５）の上端は前記開口縁外周の
手前で距離Ｘを残して終結し、該距離Ｘは前記定幅部
（31）の垂下距離Ｙより短く設定されている。FIG. 1 shows a sealed container according to one embodiment of the present invention. The sealed container comprises a lid (1) and a container body (2) formed in a cup shape. The lid (1) has a portion covering the container body opening and a side peripheral portion (3) hanging down along the outer periphery of the opening edge, and the opening edge (6) is sealed by heat sealing. The side peripheral portion (3) includes a constant width portion (31) suspended from the outer periphery of the opening edge at a substantially constant length, and a tab (4) suspended longer than the constant width portion (31). The upper ends of both side edges of the tab (4) are connected to the lower edge of the constant width portion (31). The tab (4) is divided into two tension pieces (41) and (42) by cuts (5) extending upward from the lower end. The upper end of the cut (5) ends before the outer periphery of the opening edge leaving a distance X, and the distance X is set shorter than the hanging distance Y of the constant width portion (31).
該密封容器を開封する場合、１つの引張片（41）又は
（42）を把持し図示のように上方へ引張って開封する。
例えば、引張片（42）を引張る場合、該タブは定幅部の
垂下距離Ｙに略等しい位置Ｃ−Ｃ線で折り返され、他方
の引張片（41）はこれによる影響を受けない。このた
め、把持された引張片（42）に加えられた引張り力は切
り込み（５）の先端付近に集中し、該先端部分から上方
へ引き裂きが進行し容器本体（２）の開口縁にそのまま
至ることになる。これは、切り込み（５）上方の蓋体側
周部の距離Ｘが定幅部（31）の垂下距離Ｙより短いから
である。仮に、第２図に示すように、蓋体（１）におい
て切り込み（５）の上端から前記開口縁外周部までの距
離Ｘが前記定幅部の距離Ｙより長いとすると、一方の引
張片（42′）を把持し上方へ引張ると、距離Ｙに略等し
い位置Ｃ′−Ｃ′線で引張片（41′）及び（42′）の両
方が折り返されることになる。引張片（42′）を更に引
張ると、引張片（41′）も同時に持ち上げられ、場合に
よっては点Ｃ′においてタブが引き裂かれ、結局タブ
（４）は一体となって剥離に寄与し、大きな開封初期抵
抗を伴なうことになる。一方の引張片のみを持ち上げる
ためには、他方の引張片を手で押さえる必要がある。こ
の場合、引張片（42′）の引張りによりタブ（４）は切
り込み（５）から引き裂かれるが、その引き裂きが蓋体
のシール部に達するときの引き裂き方向により、剥離線
は、第6A図、第6B図及び第6C図に各々示すＢ−B1、Ｂ−
B2、Ｂ−B3というように様々となり、Ｂ−B2やＢ−B3と
いう長い剥離線となったときは開封初期抵抗が高くな
る。When opening the sealed container, one pulling piece (41) or (42) is gripped and pulled upward as shown to open.
For example, when pulling the tension piece (42), the tab is folded at a position CC line substantially equal to the hanging distance Y of the constant width portion, and the other tension piece (41) is not affected by this. For this reason, the tensile force applied to the gripped tension piece (42) is concentrated near the tip of the cut (5), and tearing proceeds upward from the tip to directly reach the opening edge of the container body (2). Will be. This is because the distance X of the lid-side peripheral portion above the cut (5) is shorter than the hanging distance Y of the constant width portion (31). Assuming that the distance X from the upper end of the notch (5) to the outer peripheral portion of the opening edge is longer than the distance Y of the constant width portion in the lid (1) as shown in FIG. When the gripper 42 ') is gripped and pulled upward, both the tension pieces (41') and (42 ') are folded at a position C'-C' line substantially equal to the distance Y. When the pulling piece (42 ') is further pulled, the pulling piece (41') is also lifted at the same time, and in some cases, the tab is torn at the point C '. It will be accompanied by initial opening resistance. In order to lift only one tension piece, it is necessary to press the other tension piece by hand. In this case, the tab (4) is torn from the cut (5) by the pulling of the pulling piece (42 '), and depending on the tearing direction when the tear reaches the sealing portion of the lid, the peeling line is shown in FIG. BB 1 and B-B shown in FIGS. 6B and 6C, respectively.
Will vary and so B 2, B-B 3, the higher the unwrapped initial resistance when made into a long peeling line that B-B 2 and B-B 3.
一方、本考案に係る密封容器においては、前述のとお
りタブ（４）の引き裂きが切り込み（５）の先端部分か
ら上方へ進行するので剥離線は第７図に示すＢ−Ｂのよ
うに短い線として画一的に得られ、開封初期抵抗が低く
なる。引張片（42）の引張りにより、或る程度蓋体を剥
がした後、引張片（41）を引張って剥離を行い全開封を
行なうことになるが、この場合も前述と同様の作用によ
り低い開封初期抵抗となる。なお、上記切り込み（５）
の上端を開口縁（６）外周の手前で距離Ｘを残して終結
させるのは、密封に対する安全対策のためである。ちな
みに、切り込み（５）の上端が開口縁６の外周まで到達
していると、切り込み（５）から開口縁（６）の封着部
に向けて亀裂が入りやすくなり、密封に対する安全対策
上好ましくない。On the other hand, in the sealed container according to the present invention, as described above, since the tearing of the tab (4) proceeds upward from the tip of the cut (5), the peeling line is a short line like BB shown in FIG. And the initial opening resistance is reduced. After the lid is peeled to a certain extent by pulling the pulling piece (42), the pulling piece (41) is pulled off and peeled off, and the full opening is performed. It becomes the initial resistance. In addition, the notch (5)
The upper end is terminated with a distance X in front of the outer periphery of the opening edge (6) for safety measures against sealing. Incidentally, when the upper end of the notch (5) reaches the outer periphery of the opening edge 6, a crack is easily formed from the notch (5) toward the sealing portion of the opening edge (6), which is preferable for safety measures against sealing. Absent.
考案の効果 本考案によれば、次の効果を奏する密封容器を提供す
ることができる。すなわち、カップ状容器本体の開口を
覆う可撓性蓋体は、長く垂下し切り込みを有したタブを
備えているので、該切り込みにより形成された２個の引
張片を個々に引張ることにより小さい力で開封を行なう
ことができる。特に、タブの切り込み上端から前記開口
縁外周までの距離は蓋体側周部の定幅部の垂下長さより
短くされているので、１つの引張片を引張る際に他の引
張片を押さえなくても１つの引張片が独立して持ち上げ
られ、切り込み先端部付近への応力集中により容易に引
き裂きが生じ、一定の短い剥離線が得られ、開封時の抵
抗が小さい。従って、蓋体と容器本体との封着強度を強
くしても、開封を容易に行なうことができる。Effects of the Invention According to the present invention, a sealed container having the following effects can be provided. That is, since the flexible lid covering the opening of the cup-shaped container body is provided with a tab having a long hanging cut, a smaller force is required to individually pull the two tension pieces formed by the cut. Can be opened. In particular, since the distance from the cut upper end of the tab to the outer periphery of the opening edge is shorter than the drooping length of the constant width portion of the lid side peripheral portion, it is not necessary to hold down another tension piece when pulling one tension piece. One tension piece is lifted independently, tearing easily occurs due to stress concentration near the cutting tip, a certain short peeling line is obtained, and resistance at the time of opening is small. Therefore, even when the sealing strength between the lid and the container body is increased, the opening can be easily performed.
さらに、切り込みの上端は開口縁外周よりも手前で距
離Ｘを残して終結しているので、切り込みの形成に拘わ
らず封着部の密封性に悪影響を与えることが無く、密封
に対する安全性にも優れている。Furthermore, since the upper end of the notch terminates at a distance X before the outer periphery of the opening edge, the sealing performance of the sealing portion is not adversely affected irrespective of the formation of the notch, and the safety for sealing is also improved. Are better.
第１図は本考案１実施例の密封容器の斜視図、第２図は
本考案を説明するための密封容器の斜視図、第３図は従
来密封容器の斜視図、第４図、第5A図及び第5B図は従来
密封容器の平面図、第6A図、第6B図、第6C図及び第７図
は開封途中の密封容器の平面図である。 （１）……蓋体 （２）……カップの状容器本体 （３）……側周部 （４）……タブ （41）、（42）……引張片 （５）……切り込みFIG. 1 is a perspective view of a sealed container according to a first embodiment of the present invention, FIG. 2 is a perspective view of a sealed container for explaining the present invention, FIG. 3 is a perspective view of a conventional sealed container, FIG. FIG. 5 and FIG. 5B are plan views of a conventional sealed container, and FIG. 6A, FIG. 6B, FIG. 6C and FIG. 7 are plan views of the sealed container being opened. (1) ... lid (2) ... cup-shaped container body (3) ... peripheral part (4) ... tab (41), (42) ... tensile piece (5) ... cut
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭54−44250（ＪＰ，Ｕ) 実開 昭47−20649（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 54-44250 (JP, U) Japanese Utility Model Showa 47-20649 (JP, U)
Claims (1)
口縁にヒートシールされて該開口を覆うと共に、該開口
縁外周から垂下した側周部を有した可撓性蓋体とを備
え、該蓋体の側周部は前記開口縁外周から略一定の長さ
で垂下した定幅部と、該定幅部より長く垂下したタブと
を備え、該タブはその両側縁の上端が上記定幅部の下縁
に接続し且つ下端から上方に延びる切り込みにより２個
の引張片に分割され、該切り込み上端は前記開口縁外周
の手前で距離Ｘを残して終結し、該距離Ｘは前記定幅部
の垂下距離Ｙよりも短く設定されていることを特徴とす
る密封容器。1. A cup-shaped container main body, and a flexible lid having a side peripheral portion hanging down from an outer periphery of the opening edge while being heat-sealed at an opening edge of an upper portion of the container main body to cover the opening. The side peripheral portion of the lid includes a constant width portion hanging down from the outer periphery of the opening edge at a substantially constant length, and a tab hanging down longer than the constant width portion, and the upper end of each side edge of the tab has the above-described shape. A cut connected to the lower edge of the constant width portion and extending upward from the lower end is divided into two tension pieces, and the upper end of the cut ends at a distance X short of the outer periphery of the opening edge, and the distance X is equal to the distance X. A sealed container characterized by being set shorter than a hanging distance Y of a constant width portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989086994U JP2565097Y2 (en) | 1989-07-24 | 1989-07-24 | Easy-to-open sealed container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989086994U JP2565097Y2 (en) | 1989-07-24 | 1989-07-24 | Easy-to-open sealed container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0326765U JPH0326765U (en) | 1991-03-19 |
| JP2565097Y2 true JP2565097Y2 (en) | 1998-03-11 |
Family
ID=31636648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989086994U Expired - Lifetime JP2565097Y2 (en) | 1989-07-24 | 1989-07-24 | Easy-to-open sealed container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2565097Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017065809A (en) * | 2017-01-18 | 2017-04-06 | 共同印刷株式会社 | Container sealing lid material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4720649U (en) * | 1971-02-13 | 1972-11-08 | ||
| JPS5444250U (en) * | 1977-08-31 | 1979-03-27 |
-
1989
- 1989-07-24 JP JP1989086994U patent/JP2565097Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0326765U (en) | 1991-03-19 |
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