JPH01254546A - Container with metal lid - Google Patents
Container with metal lidInfo
- Publication number
- JPH01254546A JPH01254546A JP63082635A JP8263588A JPH01254546A JP H01254546 A JPH01254546 A JP H01254546A JP 63082635 A JP63082635 A JP 63082635A JP 8263588 A JP8263588 A JP 8263588A JP H01254546 A JPH01254546 A JP H01254546A
- Authority
- JP
- Japan
- Prior art keywords
- seaming
- metal lid
- thickness
- flange
- container
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 48
- 239000002184 metal Substances 0.000 title claims abstract description 48
- 238000004826 seaming Methods 0.000 claims abstract description 42
- 230000002093 peripheral effect Effects 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 9
- 239000004698 Polyethylene Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002648 laminated material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 235000013324 preserved food Nutrition 0.000 description 2
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（発明の目的〕
（産業上の利用分野）
本発明は、プラスチック製容器本体と金属蓋とからなる
金属蓋付容器に関する。DETAILED DESCRIPTION OF THE INVENTION (Objective of the Invention) (Industrial Application Field) The present invention relates to a container with a metal lid, which comprises a plastic container body and a metal lid.
（従来の技術）
金属製の容器、例えば金属缶は種々の形態を有するもの
があるが、缶体の構造から３ピ一ス缶と２ピ一ス缶とに
区分することができる。３ピ一ス缶はブリキハンダ缶と
も言われ、円筒状胴部とふた及び底部を二重巻締めで密
封した構造である。(Prior Art) Metal containers, such as metal cans, have various shapes, but can be classified into three-piece cans and two-piece cans based on the structure of the can body. A three-piece can, also known as a tin solder can, has a cylindrical body, lid, and bottom sealed with double seams.
一方、２ピ一ス缶はブリキ打抜き缶とも言われ、胴部及
び底部（容器本体）を一体成形したものにふたを二重巻
締めする構造である。On the other hand, a two-piece can is also called a stamped tin can, and has a structure in which the body and bottom (container body) are integrally molded, and the lid is double-sealed.
これら金属缶は食品包装容器として各種食品缶詰、ジュ
ース、清涼飲料、ジャム類、乾燥食品等の容器に使用さ
れ、密封、保存機能が特に優れた剛性容器である。しか
しながら、金属缶には、下記のような改善すべき点があ
る。即ち、■ 金属缶であるために、軽量化に限界があ
る。These metal cans are used as food packaging containers for various canned foods, juices, soft drinks, jams, dried foods, etc., and are rigid containers with particularly excellent sealing and preservation functions. However, metal cans have the following points to be improved. That is, (1) Since it is a metal can, there is a limit to its weight reduction.
■ 衝撃を受けた時、−度つぶれると復元性がなく、変
形してしまう。■ If it is crushed by an impact, it will not recover and will be deformed.
■ プラスチック製容器に比べて、その製造上のエネル
ギーコストが高い。■ Compared to plastic containers, the energy cost of manufacturing them is higher.
■ 容器外装のデイスプレィ効果が金属の場合、自由に
変えることができず、外装手段は印刷によるしかない。■ If the display effect of the container exterior is made of metal, it cannot be changed freely, and the only means of exterior packaging is printing.
■ 内容物を開缶せずに確認できるような透明容器をつ
くることは不可能である。■ It is impossible to create transparent containers that allow the contents to be checked without opening the can.
このような従来の金属缶における欠点を解決するため、
プラスチック製の容器本体に金属蓋を取付けてなる金属
蓋付容器が考えられている。In order to solve these drawbacks of conventional metal cans,
Containers with metal lids are being considered, which are made by attaching a metal lid to a plastic container body.
また、プラスチック製の容器本体に金属蓋を取付ける場
合、容器本体のフランジ部に金属蓋を巻締めて取付けて
いる。Furthermore, when attaching a metal lid to a plastic container body, the metal lid is attached by wrapping it around the flange portion of the container body.
（発明が解決しようとする課題）
上述のように、金属蓋付容器はプラスチック製容器本体
のフランジ部に金属蓋の周縁部を巻締めて構成されてい
る。また巻締める方法として、二重に巻締める二重巻締
めが行なわれている。(Problems to be Solved by the Invention) As described above, a container with a metal lid is constructed by wrapping the peripheral edge of the metal lid around the flange portion of the plastic container body. Also, as a method of tightening, double tightening is performed.
しかしながら、現在プラスチック製容器本体のフランジ
部と金属蓋の周縁部の二重巻締めについて適切な技術が
確立していないのが実情である。However, the current situation is that no appropriate technique has been established for double-sealing the flange of the plastic container body and the peripheral edge of the metal lid.
すなわち、巻締め強さが弱いと金属蓋付容器の密閉性が
悪化するという問題がある。−万巻締め強さが強すぎる
と、フランジ部が破損してしまうという問題がある。That is, if the seaming strength is weak, there is a problem in that the sealing performance of the container with a metal lid deteriorates. - If the tightening strength is too strong, there is a problem that the flange part will be damaged.
本発明はこのような点を考慮してなされたものであり、
適切な二重巻締めを行なって密閉性に優れた金属蓋付容
器を提供することを目的とする。The present invention has been made in consideration of these points,
The purpose of the present invention is to provide a container with a metal lid that is properly double-sealed and has excellent airtightness.
（課題を解決するための手段）
本発明は、容器本体のフランジ部に金属蓋の周縁部を二
重巻締めしてなる金属蓋付容器であって、巻締め前の容
器本体のフランジ部の厚さをＰとし、巻締め前の金属蓋
の周縁部の厚さをＭとした場合、巻締後の巻締部の厚さ
Ｗを０．５ （３Ｍ＋２Ｐ）以上としかつ３Ｍ＋２Ｐ未
満としたことを特徴としている。(Means for Solving the Problems) The present invention provides a container with a metal lid in which the peripheral edge of a metal lid is double-sealed to the flange portion of the container body, wherein the flange portion of the container body is When the thickness is P and the thickness of the peripheral edge of the metal lid before seaming is M, the thickness W of the seaming part after seaming must be 0.5 (3M + 2P) or more and less than 3M + 2P. It is characterized by
（作 用）
本発明によれば、密閉性が高くかつフランジ部の破損の
恐れが少ない二重巻締めを行なうことができる。(Function) According to the present invention, double seaming can be performed with high sealing performance and with little risk of damage to the flange portion.
（実施例）
以下、図面を参照して本発明の実施例について説明する
。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図および第２図は本発明による金属蓋付容器の一実
施例゛を示す図である。FIGS. 1 and 2 are views showing an embodiment of a container with a metal lid according to the present invention.
金属蓋付容器１０は、プラスチック製容器本体１４のフ
ランジ部１５に、アルミニウム製金属蓋１１の周縁部１
２を二重巻締めして構成されている。The container 10 with a metal lid has a peripheral edge 1 of an aluminum metal lid 11 on a flange 15 of a plastic container body 14.
It is constructed by double-sealing 2.
また、第２図に示すように、金属蓋１１の内面全域にエ
ポキシ系樹脂および変性ポリオレフィンの積層体１６が
あらかじめコーティングされている。この積層体１６は
、金属蓋１１の周縁部１２と容器本体１４のフランジ部
１５とを巻締めた後、この周縁部１２とフランジ部１５
との巻締め箇所である巻締部１３を熱処理することによ
り、周縁部１２とフランジ部１５との間の隙間を埋める
ものである。Further, as shown in FIG. 2, the entire inner surface of the metal lid 11 is coated in advance with a laminate 16 of epoxy resin and modified polyolefin. This laminate 16 is formed by wrapping the peripheral edge 12 of the metal lid 11 and the flange 15 of the container body 14, and then tightening the peripheral edge 12 and the flange 15 of the container body 14.
The gap between the peripheral edge part 12 and the flange part 15 is filled by heat-treating the seaming part 13, which is the seaming part.
本実施例において用いられるプラスチック製容器本体１
４の材質は特に限定されたものである必要は久い。二重
巻締めに耐える充分な硬度、強度を有するものであれば
よく、例えばオレフィン系樹脂、ポリプロピレンを主体
とした積層材料等が用いられる。該容器本体１４は、フ
ランジ部１５の厚みが０．２〜１．０ｍｍであって、フ
ランジ幅が１．０〜２．５！Ｉ１１であることが好まし
い。Plastic container body 1 used in this example
There is no need for the material of No. 4 to be particularly limited. Any material may be used as long as it has sufficient hardness and strength to withstand double seaming. For example, a laminated material mainly made of olefin resin or polypropylene may be used. The container body 14 has a flange portion 15 having a thickness of 0.2 to 1.0 mm, and a flange width of 1.0 to 2.5 mm. I11 is preferred.
次に、金属蓋１１の周縁部１２と容器本体１４のフラン
ジ部１５との巻締め箇所である巻締部１３の詳細を第２
図によって説明する。Next, the details of the seaming part 13, which is the seaming part between the peripheral edge 12 of the metal lid 11 and the flange part 15 of the container body 14, are explained in the second section.
This will be explained using figures.
すなわち、巻締部１３の厚さＷは、
０．５ （３Ｍ＋２Ｐ） ≦Ｗ＜３Ｍ＋２Ｐ・・・
（１）となっている。That is, the thickness W of the seaming portion 13 is 0.5 (3M+2P) ≦W<3M+2P...
(1).
（１）式において、Ｍは巻締め前の金属蓋１１の周縁部
１２の厚さであり、Ｐは巻締め前の容器本体１４のフラ
ンジ部１５の厚さである。In equation (1), M is the thickness of the peripheral edge 12 of the metal lid 11 before seaming, and P is the thickness of the flange 15 of the container body 14 before seaming.
また、フランジ部１５端から周縁部１２端までの巻締部
１３の重なり長さＯＬは、
ＯＬ≧０．０５Ｌ ・・・・・・（２）
となっている。In addition, the overlapping length OL of the seaming portion 13 from the end of the flange portion 15 to the end of the peripheral edge portion 12 is OL≧0.05L (2)
It becomes.
（２）式において、Ｌは巻締部１３の内側高さである。In equation (2), L is the inner height of the seaming portion 13.
なお、第２図でＴは巻締部１３の外側高さである。In addition, in FIG. 2, T is the outer height of the seaming portion 13.
次にこのような構成からなる金属蓋付容器の製造方法に
ついて簡単に説明する。Next, a method for manufacturing a container with a metal lid having such a configuration will be briefly described.
まず、容器本体１４内に内容物（図示せず）を充てんし
、容器本体１４に金属蓋１１をフランジ部１５と周縁部
１２とを重合わせた状態で緩く装着する。次に容器本体
１４のフランジ部１５に金属蓋付容器１１の周縁部１２
を二重巻締めによって巻締める。First, the container body 14 is filled with contents (not shown), and the metal lid 11 is loosely attached to the container body 14 with the flange portion 15 and peripheral edge portion 12 overlapped. Next, the peripheral edge 12 of the container 11 with a metal lid is attached to the flange 15 of the container body 14.
is tightened by double seaming.
この巻締め工程は、容器本体１４と金属蓋１１とからな
る金属蓋付容器１０を上下方向から押圧保持し、外方か
ら巻締ローラ（図示せず）をフランジ部１５と周縁部１
２との重合せ部に押当てることにより行なわれる。In this seaming step, the metal lidded container 10 consisting of the container body 14 and the metal lid 11 is pressed and held from above and below, and a seaming roller (not shown) is applied from the outside to the flange portion 15 and the peripheral edge portion 10.
This is done by pressing it against the overlapped portion with 2.
この巻締め工程によって、周縁部１２とフランジ部１５
とが圧着される。Through this seaming process, the peripheral portion 12 and the flange portion 15
and are crimped.
巻締め工程によって形成される巻締部１３の形状は、（
１）式および（２）式により定められ、適正な形状とな
っている。The shape of the seaming portion 13 formed by the seaming process is (
It is determined by equations (1) and (2), and has an appropriate shape.
すなわち、（１）式において巻締部１３の厚さＷが３Ｍ
＋２Ｐ以上となると十分な密閉性を保つことはできず、
他方０．５ｘ （３Ｍ＋２Ｐ）以下とすると周縁部１２
とフランジ部１５との圧着が強すぎてフランジ部１５が
破損する恐れがある。That is, in equation (1), the thickness W of the seaming portion 13 is 3M.
If it exceeds +2P, it will not be possible to maintain sufficient airtightness.
On the other hand, if it is 0.5x (3M+2P) or less, the peripheral part 12
There is a risk that the crimping between the flange portion 15 and the flange portion 15 may be too strong and the flange portion 15 may be damaged.
また、一般に金属容器と金属蓋との間の巻締めにおいて
は、巻締部の重なり長さは巻締部の高さＸ０２４以上必
要であるといわれている。しかし本発明の場合、（２）
式に示すように巻締部１３の重なり長さＯＬは、巻締部
１３の内側高さし×０．０５ （５％）以上で十分であ
る。これは容器本体１４がプラスチック製のため柔軟性
があり、密閉性にすぐれているからである。このため、
二重巻締めに必要な周縁部１２の幅およびフランジ部１
５の幅を短くすることができる。Furthermore, it is generally said that when seaming between a metal container and a metal lid, the overlapping length of the seaming part needs to be equal to or greater than the height of the seaming part X024. However, in the case of the present invention, (2)
As shown in the formula, it is sufficient that the overlapping length OL of the seaming portion 13 is equal to or greater than the inner height of the seaming portion 13 x 0.05 (5%). This is because the container body 14 is made of plastic, so it is flexible and has excellent sealing properties. For this reason,
Width of peripheral portion 12 and flange portion 1 required for double seaming
5 can be made shorter.
次に巻締めが行なわれた周縁部１２が、高周波ウェルダ
（図示せず）等により加熱処理され、積層体１６が溶融
して周縁部１２とフランジ部１５との間の隙間が埋めら
れる。Next, the circumferential edge portion 12 that has been tightened is heated by a high-frequency welder (not shown) or the like, and the laminate 16 is melted to fill the gap between the circumferential edge portion 12 and the flange portion 15.
このように本実施例によれば、適切な二重巻締めを行な
うことによって、密閉性にすぐれた金属蓋付容器を得る
ことができる。As described above, according to this embodiment, a container with a metal lid having excellent airtightness can be obtained by performing appropriate double seaming.
なお、上記実施例における積層体は、必ずしも設けなく
てもよい。Note that the laminate in the above embodiments does not necessarily have to be provided.
次に本実施例の具体例について、以下説明する。Next, a specific example of this embodiment will be described below.
ポリエチレン／エチレンビニルアルコール共重合体／ポ
リエチレンの積層材料を真空成形して容器本体１４（口
径６５．３ｍｍ、深さ３５ｍｍ、フランジ部の厚み０．
３ｍｍ）を作成した。その後、この容器本体１４内に
水を満注充填して、アルミニウム製金属蓋（厚さ０．２
７＋＋ｍ）を用いてセミトロシーマ−で巻締め、もれ数
をみた。この結果を以下に示す。A laminated material of polyethylene/ethylene vinyl alcohol copolymer/polyethylene is vacuum-formed to form a container body 14 (65.3 mm in diameter, 35 mm in depth, and 0.5 mm in flange thickness).
3mm) was created. After that, the container body 14 is fully filled with water, and the aluminum metal lid (thickness 0.2
7++m) and tightened with a semitroseamer, and the number of leaks was checked. The results are shown below.
Ｃ発明の効果〕
以上説明したように、本発明によれば適切な二重巻締め
を行なうことによって、密閉性が高くかつフランジ部の
破損の恐れが少ない金属蓋付容器を得ることができる。C. Effects of the Invention] As described above, according to the present invention, by performing appropriate double seaming, it is possible to obtain a container with a metal lid that has high airtightness and is less likely to be damaged in the flange portion.
第１図は本発明による金属蓋付容器の一実施例を示す側
断面図であり、第２図は第１図Ａ部拡大図である。
１０・・・金属蓋付容器、１１・・・金属蓋、１２・・
・周縁部、１３・・・巻締部、１４・・・容器本体、１
５・・・フランジ部、１６・・・積層体、Ｌ・・・巻締
部の内側高さ、ＯＬ・・・巻締部の重なり長さ、Ｗ・・
・巻締部の厚さ。
出願人代理人 佐 藤 −雄
躬１ 図
第２ 図FIG. 1 is a side sectional view showing an embodiment of a container with a metal lid according to the present invention, and FIG. 2 is an enlarged view of part A in FIG. 1. 10...Container with metal lid, 11...Metal lid, 12...
- Peripheral part, 13... Sealing part, 14... Container body, 1
5...Flange part, 16...Laminated body, L...Inside height of the seaming part, OL...Overlapping length of the seaming part, W...
・Thickness of the seaming part. Applicant's agent: Sato - Yumi 1 Figure 2
Claims (1)
めしてなる金属蓋付容器において、巻締め前の容器本体
のフランジ部の厚さをＰとし、巻締め前の金属蓋の周縁
部の厚さをＭとした場合、巻締後の巻締部の厚さＷを０
．５（３Ｍ＋２Ｐ）以上としかつ３Ｍ＋２Ｐ未満とした
ことを特徴とする金属蓋付容器。 ２、フランジ部端と周縁部端との巻締部の重なり長さＯ
Ｌを、巻締部の内側高さＬに対して５％以上としたこと
を特徴とする請求項１記載の金属蓋付容器。[Claims] 1. In a container with a metal lid formed by double-sealing the peripheral edge of a metal lid to the flange portion of the container body, the thickness of the flange portion of the container body before tightening is P, and If the thickness of the peripheral edge of the metal lid before tightening is M, then the thickness W of the tightened part after tightening is 0.
．． 5 (3M+2P) or more and less than 3M+2P. 2. Overlap length O of the seaming part between the flange part end and the peripheral part end
2. The container with a metal lid according to claim 1, wherein L is 5% or more with respect to the inner height L of the seaming portion.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63082635A JPH01254546A (en) | 1988-04-04 | 1988-04-04 | Container with metal lid |
| US07/445,677 US5257709A (en) | 1988-03-29 | 1989-03-29 | Container provided with metallic cover and method and apparatus for manufacturing the same |
| US08/104,577 US5584634A (en) | 1988-03-29 | 1993-08-11 | Container provided with metallic cover and method and apparatus for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63082635A JPH01254546A (en) | 1988-04-04 | 1988-04-04 | Container with metal lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01254546A true JPH01254546A (en) | 1989-10-11 |
Family
ID=13779894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63082635A Pending JPH01254546A (en) | 1988-03-29 | 1988-04-04 | Container with metal lid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01254546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6410186B1 (en) * | 1998-08-21 | 2002-06-25 | Eveready Battery Company, Inc. | Battery construction having double seam cover closure |
-
1988
- 1988-04-04 JP JP63082635A patent/JPH01254546A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6410186B1 (en) * | 1998-08-21 | 2002-06-25 | Eveready Battery Company, Inc. | Battery construction having double seam cover closure |
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