JPS5916273Y2 - container lid - Google Patents

Description

【考案の詳細な説明】 本考案は、容器の開口部に着脱自在に冠着され、確実に
密閉し得る安価な紙製蓋に関する。[Detailed Description of the Invention] The present invention relates to an inexpensive paper lid that is removably attached to the opening of a container and can be reliably sealed.

スナック食品等の包装容器、所謂コンポジット管は、第
１０図に示すように、紙管体１の取出口である開口部に
アルミ箔などのインナーシール２が貼着され、これにプ
ラスチック射出成形品である蓋３が被冠される。As shown in Fig. 10, a packaging container for snack foods, etc., a so-called composite tube, has an inner seal 2 such as aluminum foil pasted to the opening of a paper tube body 1, which is the outlet, and a plastic injection molded product is attached to this. A lid 3 is placed on top.

かく二重構造とするのは、プラスチック蓋３だけでは管
内の密封ができないがらであり、またインナーシールの
みでは流通過程で破封するおそれがあるからである。The reason for this double structure is that the plastic lid 3 alone cannot seal the inside of the tube, and the inner seal alone may cause the seal to break during the distribution process.

しかし、プラスチック射出成形蓋は高価で、またインナ
ーシールの貼着も煩らしく、コストの負担が大きい。However, plastic injection molded lids are expensive, and the inner seal is cumbersome to attach, resulting in a large cost burden.

しかも、紙製の管体とプラスチック蓋との取合せは意匠
的に調和せず、違和感を感じさせる。Moreover, the combination of the paper tube body and the plastic lid does not harmonize with the design and gives a sense of discomfort.

また、鉄蓋の表面には凹凸状の文字・模様を鋳出しでき
るにとどまり、種々の模様・色彩を施し得ないので装飾
効果に限度がある。In addition, only uneven letters and patterns can be cast on the surface of the iron lid, and various patterns and colors cannot be applied, so the decorative effect is limited.

加えて、使用後は焼却が困難で廃棄物処理・公害の問題
がある。In addition, it is difficult to incinerate after use, leading to problems with waste disposal and pollution.

本考案は上記欠点を解消したもので、厚紙にて蓋の基体
を形威し、これに熱収縮性プラスチックフィルムを被着
させることにより、容器の開口部に着脱自在に冠着させ
、かつ確実に密封し得るようにした蓋を提供する。The present invention solves the above-mentioned drawbacks. By forming the base of the lid using cardboard and covering it with a heat-shrinkable plastic film, it can be attached to the opening of the container removably and securely. Provide a lid that can be sealed tightly.

以下、本考案の実施例を添付の図面により説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.

第１図に示す蓋体４は、容器開口端部に冠着される前の
予備成形された状態のものであり、第２図は、容器破封
後、該容器から脱離させたときの形態を示す。The lid 4 shown in FIG. 1 is in a preformed state before being attached to the opening end of the container, and FIG. Indicates the form.

図のように、蓋４は天面４１とその周縁の立縁部４２を
基体とし、その立縁部４２の外周面を囲繞する円筒状熱
収縮性プラスチックフィルム（以下、「熱収縮性チュー
ブ」という）５が環着されている。As shown in the figure, the lid 4 has a top surface 41 and a raised edge 42 on its periphery as a base, and a cylindrical heat-shrinkable plastic film (hereinafter referred to as a "heat-shrinkable tube") surrounding the outer peripheral surface of the raised edge 42. ) 5 is attached in a ring.

熱収縮性チューブ５は、予備成形の段階（第１図）では
軽度の熱収縮率にて蓋４の立縁部に環着されている。The heat-shrinkable tube 5 is ring-attached to the vertical edge of the lid 4 with a slight heat-shrinkage rate during the preforming stage (FIG. 1).

また該チューブは、その下端部５１が蓋の立縁部４１の
下端部を越えて下方に延在する長さを有する。The tube also has a length such that its lower end 51 extends downward beyond the lower end of the raised edge 41 of the lid.

なお、該チューブの周面には、蓋の立縁部４２の下端面
に沿ってミシン目６１が刻設され、容器破封時に、ミシ
ン目を境に上下に破切分断されるようになっている。Incidentally, a perforation 61 is formed on the circumferential surface of the tube along the lower end surface of the standing edge 42 of the lid, so that when the container is unsealed, the tube is torn and divided vertically along the perforation. ing.

上記第１図の予備成形された蓋４は、第３図〔■〕に示
すように、容器７の開口部に被冠し、熱風などの適当な
熱源８にてチューブ５を加熱すれば、同図［ＩＩ）に示
すように該チューブは熱収縮によって蓋の基体、特に立
縁部４２を締め付けるとともに、容器周面に緊密に密着
するので、蓋４と容器が強固に一体的に係合し確実な密
封状態が与えられる。The preformed lid 4 shown in FIG. 1 is placed over the opening of the container 7, as shown in FIG. 3 [■], and the tube 5 is heated with a suitable heat source 8 such as hot air. As shown in Figure [II], the tube tightens the base of the lid, especially the raised edge 42, by heat shrinkage, and also tightly adheres to the circumferential surface of the container, so that the lid 4 and the container are firmly and integrally engaged. This provides a reliable seal.

密封した容器から内容物Ｍを取出すには、チューブ５を
ミシン目６１にそって破切し、容器部分５３と蓋部分５
４とに分断して蓋４を取はずせばよい。To take out the contents M from the sealed container, cut the tube 5 along the perforation 61 and separate the container portion 53 and lid portion 5.
All you have to do is separate it into 4 parts and remove the lid 4.

破切を容易にするため、第４図に示すようにミシン目６
１のほか、縦方向のミシン目６２を設け、つまみ１０を
付設しておくとよい。To facilitate tearing, perforation 6 is made as shown in Figure 4.
In addition to 1, it is preferable to provide a vertical perforation 62 and attach a knob 10.

本考案の蓋は、第５図〔■〕に示すように立縁部４２に
内側に向う突出部４３が設けられることもある。In the lid of the present invention, an inward protruding portion 43 may be provided on the vertical edge portion 42 as shown in FIG. 5 [■].

この場合、同図〔■■〕に示すように、開口部周縁に突
出部（例えば、コンポジット管の管端巻締め部）７１を
有する容器に用いて、蓋の突出部４３が容器の突出部７
１を抱込むように係合させると冠着状態は−そう確実な
ものとなる。In this case, as shown in FIG. 7
1 is engaged in a hugging manner, the crowning state becomes very reliable.

鉄蓋の突出部４３は、通常立縁部４２の下端部にその全
周をめぐるリング状に形成するのが好ましい。It is preferable that the protruding part 43 of the iron lid is usually formed in the shape of a ring around the entire circumference of the lower end of the standing edge part 42.

鉄蓋は容器開口部に突出部のない場合にも好ましく用い
られる。Iron lids are also preferably used when there is no protrusion at the opening of the container.

本考案は上記のように厚紙製で、その立縁部４２の外周
面が熱収縮性チューブ５で締付けられているから、容器
への着脱を繰返しても、立縁部４２が弛緩することなく
、常に確実な嵌合状態が得られる。As described above, the present invention is made of cardboard, and the outer peripheral surface of the standing edge 42 is tightened with the heat-shrinkable tube 5, so that the standing edge 42 will not loosen even if it is repeatedly attached to and removed from the container. , a secure mating condition can always be obtained.

また、立縁部に突出部４３を有する蓋の場合は、第６図
に示オ」ｊ４」刻麩畠部４３の内径ｄは容器の突出部７
１の外径Ｄ−よ′り小さく、かつ該立縁部４２は弾′匝
変形能を有し、容器への着脱に際しその突出部４３が容
器の突出部７１を通過するときに外側へ拡張し、その後
もとの径に復帰する。In addition, in the case of a lid having a protrusion 43 on the vertical edge, the inner diameter d of the engraved part 43 is the same as the protrusion 7 of the container as shown in FIG.
1, and the upright edge portion 42 has elastic deformability, and expands outward when the protruding portion 43 passes through the protruding portion 71 of the container when being attached to and removed from the container. and then returns to its original diameter.

従って容器に冠着すれば、蓋４はその突出部４３が容器
突出部７１を抱込むように係合する。Therefore, when the lid 4 is attached to a container, the protruding portion 43 of the lid 4 engages with the container protruding portion 71.

この場合も熱収縮性チューブ５の効果により、容器への
着脱を繰返しても、立縁部４２が弛緩することはない。In this case as well, due to the effect of the heat-shrinkable tube 5, the standing edge portion 42 will not loosen even if it is repeatedly attached to and detached from the container.

蓋４の基体をなす厚紙の材質は任意であり、紙単体のほ
か、容器内容物の種類等によっては、防水、防湿、通気
遮断などを目的とし樹脂塗膜、樹脂フィルムなどを施こ
したものでもよい。The material of the cardboard that forms the base of the lid 4 is arbitrary, and in addition to paper alone, depending on the type of container contents, it may be coated with a resin coating, a resin film, etc. for waterproofing, moisture proofing, ventilation blocking, etc. But that's fine.

なお、該基体の紙厚が薄過ぎると軟弱で本考案の目的と
する蓋が得られない。Note that if the paper thickness of the substrate is too thin, it will be too soft and the lid intended for the purpose of the present invention cannot be obtained.

本考案で厚紙というのは、上記のごとく熱収縮性フィル
ムとの組合せにより一定の形体と所要の弾性変形能を保
持し得るに足る厚さを有するという程の意味である。In the present invention, cardboard means that it has a thickness sufficient to maintain a certain shape and required elastic deformability when combined with a heat-shrinkable film as described above.

熱収縮性チューブ５は、ポリ塩化ビニル樹脂など熱収縮
性を有する各種プラスチックフィルムが用いられる。For the heat-shrinkable tube 5, various plastic films having heat-shrinkable properties such as polyvinyl chloride resin are used.

熱収縮率は例えば約２０〜７０％（一般に約５５％前後
）である。The heat shrinkage rate is, for example, about 20 to 70% (generally about 55%).

たパシ、前記第１図などに示す予備成形の段階では、例
えば約２０％程度熱収縮させ、その後第３図などに示す
ように容器開口部に冠着させて残余の熱収縮を生起させ
る。In the preforming stage shown in FIG. 1, the material is heat-shrinked, for example, by about 20%, and then, as shown in FIG. 3, it is attached to the opening of the container to cause the remaining heat to shrink.

なお、該チューブは円周方向に熱収縮し、高さ方向の熱
収縮は可及的に小さいのが有利なことは言うまでもない
。It goes without saying that it is advantageous for the tube to be heat-shrinkable in the circumferential direction, and for the heat-shrinkage in the height direction to be as small as possible.

上記熱収縮性チューブ５は、立縁部４２の外周面の全部
または一部（例えば下半分）を被覆するだけでもよいが
、図のように天面４１の周縁部まで延在させれば、予備
成形段階での取扱い上（例えば、脱落防止）都合がよく
、かつその後容器への着脱使用において蓋の所定形態を
保持するのに有利である。The heat-shrinkable tube 5 may cover all or a portion (for example, the lower half) of the outer peripheral surface of the upright edge portion 42, but if it extends to the peripheral edge of the top surface 41 as shown in the figure, This is convenient for handling during the preforming stage (for example, to prevent falling off), and is advantageous for maintaining the predetermined shape of the lid when it is subsequently attached to and removed from the container.

本考案蓋４を製作するには、例えば第７図〔Ｉ〕に示す
ように、円周溝９１を有する型台９の上に、厚紙板４′
を載置し、プレス成形によりその周縁部４２′を型台の
側周面に沿うように屈曲させれば、立縁部とその下端に
突出部を有する基体が得られる。To manufacture the lid 4 of the present invention, for example, as shown in FIG. 7 [I], a cardboard plate 4'
is placed and the peripheral edge 42' is bent along the side circumferential surface of the mold stand by press molding, thereby obtaining a base having a raised edge and a protrusion at its lower end.

なお、プレス成形を加熱下に行なうと、もどりが少く正
確な形状に成形することができる。Note that when press molding is performed under heating, there is less rebound and it is possible to mold into an accurate shape.

ついで同図〔■■〕に示すように熱収縮性チューブ５を
被嵌し、熱源８にて軽度の熱収縮を生起させれば、前記
第１図に示す蓋４が得られる。Next, as shown in [■■] in the same figure, a heat-shrinkable tube 5 is fitted and a slight heat shrinkage is caused by a heat source 8, thereby obtaining the lid 4 shown in FIG. 1.

必要ならば、同図〔■Ｉ〕に示すように蓋の上方から熱
板９を押圧して天面４１周縁と熱収縮性チューブ上端部
５２の密着を強化すればよい。If necessary, the close contact between the periphery of the top surface 41 and the upper end 52 of the heat-shrinkable tube may be strengthened by pressing the hot plate 9 from above the lid as shown in FIG.

むろん蓋４の平面形状は円形に限らず、楕円、矩形など
対象容器の開口部形状に応じた種々の形状に成形される
。Of course, the planar shape of the lid 4 is not limited to a circle, but may be formed into various shapes such as an ellipse or a rectangle depending on the shape of the opening of the target container.

本考案の蓋は、例えば紙管であるコンポジット管をはじ
めとし、食品、飲料、その他の商品を包装するためのプ
ラスチック製、金属製などの容器（その形状は、長尺筒
状体、弁当箱型など任意である）を密閉する蓋として広
く用いることができる。The lid of the present invention can be used for containers such as paper tubes, composite tubes, plastics, metals, etc. for packaging food, drinks, and other products (its shape can be a long cylindrical body, a lunch box, etc.). It can be widely used as a lid to seal a mold (optional).

その容器の開口部には蓋と係合するための外側に向う突
出部が形成されていることが好ましいが、その突出部は
コンポジット管や缶詰缶のような「巻締め」に限らず、
要は蓋の立縁部の突出部と係合し得るなら、どのような
突出部でもよく例えば第８図に示すように容器開口部に
厚肉部７２を形威し、あるいは第９図に示すように、容
器開口部にリング部材７３を覆着固定してこれら厚肉部
７２やリング部材７３を突出部として機能させることも
できる。It is preferable that the opening of the container is formed with an outward protrusion for engaging with the lid, but the protrusion is not limited to "sealing" such as composite pipes and canned goods.
In short, any protrusion may be used as long as it can engage with the protrusion on the vertical edge of the lid. For example, a thickened portion 72 may be formed at the opening of the container as shown in FIG. As shown, it is also possible to cover and fix a ring member 73 to the opening of the container so that the thick portion 72 and the ring member 73 function as a protrusion.

以上のように、本考案の蓋は、紙と熱収縮プラスチック
フィルムを素材とし、かつその製作工程も簡略であるか
ら非常に安価であり、またその表面への印刷、施色も容
易で、所望の装飾・広告効果を付与することができる。As mentioned above, the lid of the present invention is made of paper and heat-shrinkable plastic film, and the manufacturing process is simple, so it is very inexpensive, and it is easy to print and color the surface as desired. Decorative and advertising effects can be added.

なお、基体の成形時、立縁部４２の周面にシワが生ずる
ことがあるが、チューブに施色してシワを見えないよう
にすれば、外観の不体裁を整えることができる。Incidentally, wrinkles may occur on the circumferential surface of the upright edge portion 42 during molding of the base, but if the tube is colored so that the wrinkles are not visible, the unsightly appearance can be improved.

しかも、その流通過程においては、基体の厚紙と熱収縮
チューブによって完全な密封状態が与えられるので従来
のごときインナーシールを必要とせず、また破封後の着
脱も容易で確実な冠着が可能である。Furthermore, during the distribution process, the base cardboard and heat shrink tube provide a perfect seal, eliminating the need for a conventional inner seal, and making it easy to put on and take off after the seal is broken, making it possible to securely attach the crown. be.

むろん、使用後は容易に焼却できるので廃却物処理上の
問題もない。Of course, it can be easily incinerated after use, so there is no problem with waste disposal.

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

第１図〔■〕は本考案蓋の実施例（予備成形状態）を示
す一部断面側面図、（ＩＩ）はそのＡ−Ａ断面図、第２
図は本考案蓋の実施例（容器破封後）を示す断面図、第
３図ＣＩ）、〔■Ｉ〕は本考案蓋の容器密封工程を示す
断面説明図、第４図は密封状態の容器側面図、第５図〔
■〕は本考案蓋の他の実施例を示す一部断面側面図、Ｃ
ＩＩ）はその容器冠着状態を示す断面図、第６図は本考
案蓋と容器開口部の寸法関係説明図、第７図〔■〕、（
ＩＩ、ｌ、〔■Ｉ〕は本考案蓋製作工程の断面説明図、
第８図〔■〕および（ＩＩ） （ＣＩ、ｌは側断面図、
（ＩＩ：）はそのＢ−Ｂ断面図）、第９図ＣＩ’ｌ、（
ＩＩ〕（（Ｉ）は側断面図、〔Ｉ■〕はそのＣ−Ｃ断面
図）はそれぞれ本考案蓋が使用される容器の開口部形状
例を示す断面図、第１０図は従来の容器の開口部断面説
明図である。 ４：本考案蓋、４１：天面、４２：立縁部、４３：蓋の
突出部、５：熱収縮性チューブ、６１．６２： ミシン
目、７：容器、７１：容器開口端突出部。Fig. 1 [■] is a partially sectional side view showing an embodiment of the lid of the present invention (preformed state), (II) is its AA sectional view, and
The figure is a cross-sectional view showing an example of the lid of the present invention (after the container is unsealed), Figure 3 CI), [■I] is a cross-sectional explanatory view showing the container sealing process of the lid of the present invention, and Figure 4 is a sectional view of the lid of the present invention in the sealed state. Container side view, Figure 5
■] is a partially sectional side view showing another embodiment of the lid of the present invention, C
II) is a sectional view showing the state in which the container is capped, FIG. 6 is an explanatory diagram of the dimensional relationship between the lid of the present invention and the opening of the container, and FIG. 7 [■], (
II, l, [■I] are cross-sectional explanatory diagrams of the lid manufacturing process of the present invention,
Figures 8 [■] and (II) (CI, l is a side sectional view,
(II:) is its BB sectional view), Figure 9 CI'l, (
II] ((I) is a side sectional view, [I■] is a C-C sectional view thereof) is a sectional view showing an example of the opening shape of a container in which the lid of the present invention is used, and FIG. 10 is a conventional container. FIG. 4: Lid of the present invention, 41: Top surface, 42: Upright edge, 43: Lid protrusion, 5: Heat-shrinkable tube, 61.62: Perforation, 7: Container, 71: Container opening end protrusion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 容器開口部に着脱自在に冠着される蓋であって、天面４
１とその周縁の立縁部４２が紙で形成され、かつ少くと
も該立縁部４２の外周面の全部もしくは一部を囲繞する
筒状熱収縮性プラスチックフィルム５が該フィルムの熱
収縮力により締着されていることを特徴とする容器の蓋
。A lid that is removably attached to the opening of the container, and has a top surface 4.
The cylindrical heat-shrinkable plastic film 5 that surrounds at least all or a part of the outer peripheral surface of the raised edge 42 is made of paper, and the cylindrical heat-shrinkable plastic film 5 surrounds at least all or a part of the outer peripheral surface of the raised edge 42. A container lid characterized in that it is fastened.