JPH08244810A - Unshrunk container lid made of heat-shrinkable synthetic resin sheet - Google Patents
Unshrunk container lid made of heat-shrinkable synthetic resin sheetInfo
- Publication number
- JPH08244810A JPH08244810A JP7079732A JP7973295A JPH08244810A JP H08244810 A JPH08244810 A JP H08244810A JP 7079732 A JP7079732 A JP 7079732A JP 7973295 A JP7973295 A JP 7973295A JP H08244810 A JPH08244810 A JP H08244810A
- Authority
- JP
- Japan
- Prior art keywords
- peripheral wall
- container
- lid
- main body
- container 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.)
- Pending
Links
Landscapes
- Closures For Containers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、合成樹脂製等の上面開
放の容器本体に被せられる容器蓋に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container lid for covering a container body made of synthetic resin or the like with an open upper surface.
【０００２】[0002]
【従来の技術】従来、この種の容器蓋として以下の如き
ものは知られている。即ち、蓋本体と、この蓋本体の全
周縁に垂下状に連設された垂下周壁と、この垂下周壁の
下縁に、内向きに連設された係合縁とを有しており、周
縁部にフランジ部を有する上面開放の容器本体に上方か
ら無理矢理に嵌め被せて、係合縁をフランジ部の下縁に
係合させるようにしたものは知られている。2. Description of the Related Art Conventionally, the following types of container lids have been known. That is, it has a lid main body, a hanging peripheral wall continuously provided in a pendent manner on the entire peripheral edge of the lid main body, and an engaging edge continuously provided inwardly at a lower edge of the hanging peripheral wall. It is known that a container main body having a flange portion on its upper surface is forcibly fitted from above to engage the engaging edge with the lower edge of the flange portion.
【０００３】[0003]
【従来技術の欠点】前記従来の容器蓋には以下の如き欠
点があった。即ち、容器蓋を上面開放の容器本体に上方
から無理矢理に嵌め被せて、容器蓋の係合縁を容器本体
のフランジ部の下縁に係合させるだけのものであったた
め、密封性に欠けるという欠点があった。Disadvantages of the Prior Art The conventional container lid has the following drawbacks. That is, the container lid is forcibly fitted from above onto the container body having an open upper surface, and the engagement edge of the container lid is simply engaged with the lower edge of the flange portion of the container body, resulting in lack of hermeticity. There was a flaw.
【０００４】[0004]
【前記欠点を解消するための手段】本発明は前記欠点を
解消するために以下の如き手段を採用した。本発明は、
蓋本体と、この蓋本体の全周縁に垂下状に連設されると
共に下部に外方に滑らかに拡がった湾曲部を有する垂下
周壁と、この垂下周壁に連設された開封つまみと、この
開封つまみの基部両側部から垂下周壁の下部の湾曲部に
形成された切り込みとを有しており、前記開封つまみの
自由端隅部が外方に向かって凸の湾曲縁となされている
熱収縮する合成樹脂製シートからなる収縮前の容器蓋で
ある。[Means for Solving the Disadvantages] The present invention employs the following means in order to eliminate the above disadvantages. The present invention
The lid main body, a hanging peripheral wall continuously connected to the entire peripheral edge of the lid main body in a downward direction and having a curved portion that smoothly spreads outwardly, an opening knob connected to the hanging peripheral wall, and the opening. And a notch formed in a curved portion in the lower part of the hanging peripheral wall from both sides of the base of the knob, and the free end corner portion of the opening knob is a curved edge convex outwardly It is a container lid before shrinkage made of a synthetic resin sheet.
【０００５】[0005]
【発明の作用】本発明は以下の如き作用をなすものであ
る。収縮前の容器蓋を上面開放の容器本体に被せた後、
垂下周壁を熱収縮させることによって、垂下周壁を容器
本体のフランジ部に密接させることが出来るので、容器
の密封性を確保することが出来る。The present invention has the following functions. After covering the container lid before contraction on the container body with the upper surface open,
By heat-shrinking the hanging peripheral wall, the hanging peripheral wall can be brought into close contact with the flange portion of the container body, so that the container can be hermetically sealed.
【０００６】[0006]
【実施例】以下に本発明を図面を参照しつつ実施例に基
づいて説明する。熱収縮する公知の合成樹脂製シート
（例えば、二軸延伸ポリスチレン・ポリプロピレン等）
からなる、平面形状略矩形の収縮前の容器蓋１は、蓋本
体３と、この蓋本体３の全周縁に垂下状に連設されると
共に下部に外方に滑らかに拡がった湾曲部５ａを有する
垂下周壁５と、この垂下周壁５に連設された開封つまみ
７と、この開封つまみ７の基部両側部から垂下周壁５の
下部の湾曲部５ａに形成された切り込み８とを有してい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments with reference to the drawings. Known synthetic resin sheet that shrinks heat (eg biaxially oriented polystyrene, polypropylene, etc.)
The container lid 1 before shrinkage having a substantially rectangular shape in plan view is formed with a lid main body 3 and a curved portion 5a continuously extending outwardly on the lower end of the lid main body 3. It has the hanging peripheral wall 5 which has, the opening knob 7 connected to this hanging peripheral wall 5, and the notch 8 formed in the curved part 5a of the lower part of the hanging peripheral wall 5 from both sides of the base of this opening knob 7. .
【０００７】前記蓋本体３は、水平部３ａと、この水平
部３ａの周縁に連設された立ち上がり部３ｂと、この立
ち上がり部３ｂの周縁に連設された外方張り出し部３ｃ
とを有している。The lid main body 3 has a horizontal portion 3a, a rising portion 3b continuous with the peripheral edge of the horizontal portion 3a, and an outwardly extending portion 3c continuous with the peripheral edge of the rising portion 3b.
And have.
【０００８】前記垂下周縁５の高さは、後述の容器本体
２１のフランジ部２２の高さｈの３〜６倍ぐらいとなさ
れている。一般的には、垂下周縁５の高さの２分の１弱
の部分が湾曲部５ａとなさる。The height of the hanging peripheral edge 5 is about 3 to 6 times the height h of the flange portion 22 of the container body 21, which will be described later. Generally, a portion of the height of the depending peripheral edge 5 which is a little less than half is the curved portion 5a.
【０００９】前記開封つまみ７の長さは２０〜３０ｍｍ
で、開封つまみ７の幅は２０〜３０ｍｍ程度が好適であ
る。前記開封つまみ７の自由端隅部が外方に向かって凸
の湾曲縁となされると共に、開封つまみ７の、垂下周壁
５との連設部隅部が外方に向かって凹の湾曲縁となされ
ている。なお、開封つまみ７は、収縮前の容器蓋１を構
成する合成樹脂製シート素材の成形時における成形シー
トの送り出し方向と直交することとなる、収縮前の容器
蓋１の縁部に形成すると、収縮後の容器蓋１Ａを開封つ
まみ７を引っ張って破断開封する際、破断切れ目が合成
樹脂製シート素材の成形シートの送り出し方向に沿って
入るので、図４に示す開封つまみ７側の破断片２４を長
くして開封をより容易に行なうことが出来る。The opening knob 7 has a length of 20 to 30 mm.
Then, the width of the opening knob 7 is preferably about 20 to 30 mm. The free end corners of the opening knob 7 are formed as convex curved edges toward the outside, and the corners of the opening knob 7 connected to the hanging peripheral wall 5 are curved edges that are concave outward. Has been done. When the opening knob 7 is formed on the edge portion of the container lid 1 before shrinkage, which is orthogonal to the feeding direction of the molded sheet at the time of molding the synthetic resin sheet material forming the container lid 1 before shrinkage, When the container lid 1A after contraction is pulled by pulling the opening knob 7 to break and open it, a break break is formed along the feeding direction of the molded sheet of synthetic resin sheet material, so that the breaking piece 24 on the opening knob 7 side shown in FIG. The length can be increased to make opening easier.
【００１０】前記切り込み８の、湾曲部５ａの縁に対し
てなす角度Θは、図４に示す開封つまみ７側の破断片２
４を長くするために９０度以内が好ましい。The angle Θ formed by the notch 8 with respect to the edge of the curved portion 5a is determined by the broken piece 2 on the opening knob 7 side shown in FIG.
In order to lengthen 4, it is preferably within 90 degrees.
【００１１】[0011]
【実施例の使用方法】次に実施例の使用方法を説明す
る。高さｈの断面Ｌ字状のフランジ部２２を有する、上
面開放の容器本体２１（一般的には合成樹脂製である）
に、収納物を入れた後、容器本体２１に収縮前の容器蓋
１を被せ、その後、蓋本体３に熱が極力加わらないよう
に蓋本体３を覆った後、加熱して垂下周縁５を収縮させ
る（図２及び図３参照）。なお、垂下周縁５が収縮した
状態で、密封性を確保するため切り込み８が容器本体２
１のフランジ部２２の下端を越えて上側には入り込まな
いように、切り込み８の長さが調節されている。この容
器の開封は、開封つまみ７を引っ張ることによって収縮
後の容器蓋１Ａを破断することによって行なわれる。開
封つまみ７を摘んで収縮後の容器蓋１Ａを破断開封した
際の、開封つまみ７側の破断片２４は一般的に図４のよ
うになる。その後、形成された開口を拡げて収縮後の容
器蓋１Ａを容器本体２１から外せばよい。[How to use the embodiment] Next, how to use the embodiment will be described. A container main body 21 (generally made of synthetic resin) having an upper surface and having a flange portion 22 having an L-shaped cross section and having a height h
Then, the container main body 21 is covered with the container lid 1 before contraction, and then the lid main body 3 is covered so that heat is not applied to the lid main body 3 as much as possible. Contract (see FIGS. 2 and 3). In addition, in the state where the depending peripheral edge 5 is contracted, the notch 8 is formed in the container main body 2 in order to ensure hermeticity.
The length of the notch 8 is adjusted so as not to extend beyond the lower end of the flange portion 22 of No. 1 and enter the upper side. The opening of this container is performed by pulling the opening knob 7 and breaking the container lid 1A after contraction. A broken piece 24 on the side of the opening knob 7 is generally as shown in FIG. 4 when the opening lid 7 is pinched and the container lid 1A after contraction is broken and opened. Then, the formed opening may be expanded and the container lid 1A after contraction may be removed from the container body 21.
【００１２】[0012]
【変形例等】以下に変形例等について説明を加える。 （１）開封つまみ７は２個以上設けるようにしてもよ
い。 （２）容器本体２１の平面形状が円形であれば、それに
対応して収縮前の容器蓋１も平面形状円形となることは
云うまでもない。[Modifications, etc.] Modifications will be described below. (1) Two or more opening knobs 7 may be provided. (2) If the container body 21 has a circular planar shape, it goes without saying that the container lid 1 before contraction also has a circular planar shape.
【００１３】[0013]
【発明の効果】本発明は前記した如き構成によって以下
の如き効果を奏するものである。 収縮前の容器蓋を上面開放の容器本体に被せた後、垂
下周壁を熱収縮させることによって、垂下周壁を容器本
体のフランジ部に密接させることが出来るので、容器の
密封性を確保することが出来る。 垂下周壁の下部に外方に滑らかに湾曲した湾曲部が形
成されているので、収縮前の容器蓋を上面開放の容器本
体に被せ易い。 開封つまみが設けられると共に開封つまみの基部両側
部から垂下周壁の下部の湾曲部に切り込みが形成されて
いるので、開封つまみを引っ張ることによって収縮後の
容器蓋の破断開封も行ない易い。 切り込みが垂下周壁の下部の湾曲部に形成されている
ので、収縮前の容器蓋を打ち抜き型によって合成樹脂製
シート素材から切り出す際、打ち抜き型にカッターを付
設しておけば、その打ち抜き作業と同時に切り込みの形
成を行なうことができるので、生産効率を上げることが
出来る。 開封つまみの自由端隅部が外方に向かって凸の湾曲縁
となされているので、熱収縮後の容器蓋をあけようとす
る者の手を傷付けることもない。The present invention has the following effects due to the above-described structure. After covering the container body before shrinkage on the container body with the upper surface open, by heat-shrinking the hanging peripheral wall, the hanging peripheral wall can be brought into close contact with the flange portion of the container body, so that the container can be hermetically sealed. I can. Since the curved portion that is smoothly curved outward is formed in the lower portion of the hanging peripheral wall, the container lid before contraction can be easily covered with the container main body whose upper surface is open. Since the opening knob is provided and the notch is formed from the both sides of the base of the opening knob to the curved portion of the lower part of the hanging peripheral wall, it is easy to rupture and open the container lid after contraction by pulling the opening knob. Since the notch is formed in the curved part of the lower part of the hanging peripheral wall, when cutting the container lid before shrinking from the synthetic resin sheet material with the punching die, if a cutter is attached to the punching die, it can be done at the same time as the punching work. Since the notch can be formed, the production efficiency can be improved. Since the free end corner of the opening knob is formed as a curved edge that is convex outward, it does not hurt the hand of the person who is trying to open the container lid after heat shrinking.
【図１】本発明の実施例を示す一部破砕斜視図である。FIG. 1 is a partially crushed perspective view showing an embodiment of the present invention.
【図２】上面開放の容器本体に収縮前の容器蓋を被せた
後、熱収縮させた状態の斜視図である。FIG. 2 is a perspective view showing a state in which a container main body having an open upper surface is covered with a container lid before contraction and then thermally contracted.
【図３】図２のＩＩＩ−ＩＩＩ線に沿う拡大断面図であ
る。3 is an enlarged cross-sectional view taken along the line III-III in FIG.
【図４】開封つまみを摘んで収縮後の容器蓋を破断開封
した際の、開封つまみ側の破断片の斜視図である。FIG. 4 is a perspective view of a broken piece on the opening knob side when the container lid after contraction is opened by breaking by opening the opening knob.
１ 収縮前の容器蓋 １Ａ 収縮後の容器蓋 ３ 蓋本体 ５ 垂下周縁 ５ａ 湾曲部 ７ 開封つまみ ８ 切り込み ２１ 容器本体 ２２ フランジ部 1 Container Lid Before Contraction 1A Container Lid After Contraction 3 Lid Main Body 5 Hanging Edge 5a Curved Part 7 Opening Knob 8 Notch 21 Container Main Body 22 Flange Part
Claims (1)
に連設されると共に下部に外方に滑らかに拡がった湾曲
部を有する垂下周壁と、この垂下周壁に連設された開封
つまみと、この開封つまみの基部両側部から垂下周壁の
下部の湾曲部に形成された切り込みとを有しており、前
記開封つまみの自由端隅部が外方に向かって凸の湾曲縁
となされている熱収縮する合成樹脂製シートからなる収
縮前の容器蓋。1. A lid main body, a penetrating peripheral wall continuously connected to the entire peripheral edge of the lid main body in a hanging shape, and having a curved portion smoothly expanding outward at a lower portion, and an unsealing continuous to the pendent peripheral wall. It has a knob and a notch formed in both sides of the base of the opening knob at the lower curved portion of the hanging peripheral wall, and the free end corner portion of the opening knob is a curved edge protruding outward. A container lid before shrinkage consisting of a heat-shrinkable synthetic resin sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7079732A JPH08244810A (en) | 1995-03-10 | 1995-03-10 | Unshrunk container lid made of heat-shrinkable synthetic resin sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7079732A JPH08244810A (en) | 1995-03-10 | 1995-03-10 | Unshrunk container lid made of heat-shrinkable synthetic resin sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08244810A true JPH08244810A (en) | 1996-09-24 |
Family
ID=13698389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7079732A Pending JPH08244810A (en) | 1995-03-10 | 1995-03-10 | Unshrunk container lid made of heat-shrinkable synthetic resin sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08244810A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009202886A (en) * | 2008-02-26 | 2009-09-10 | Toyo Aluminum Ekco Products Kk | Lid member made of shrink film |
| US7810302B2 (en) | 2005-10-25 | 2010-10-12 | Kraft Foods Global Brands Llc | Method of forming reclose mechanism in a reclosable package |
| US8911807B2 (en) | 2009-11-06 | 2014-12-16 | Kraft Foods Group Brands Llc | Container for sliced and fluffed food products |
-
1995
- 1995-03-10 JP JP7079732A patent/JPH08244810A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7810302B2 (en) | 2005-10-25 | 2010-10-12 | Kraft Foods Global Brands Llc | Method of forming reclose mechanism in a reclosable package |
| US10183766B2 (en) | 2005-10-25 | 2019-01-22 | Kraft Foods Group Brands Llc | Method for forming a reclose mechanism on a reclosable package |
| US11034469B2 (en) | 2005-10-25 | 2021-06-15 | Kraft Foods Group Brands Llc | Method for forming a reclose mechanism on a reclosable package |
| JP2009202886A (en) * | 2008-02-26 | 2009-09-10 | Toyo Aluminum Ekco Products Kk | Lid member made of shrink film |
| US8911807B2 (en) | 2009-11-06 | 2014-12-16 | Kraft Foods Group Brands Llc | Container for sliced and fluffed food products |
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