JPH0223430B2 - - Google Patents
Info
- Publication number
- JPH0223430B2 JPH0223430B2 JP58048002A JP4800283A JPH0223430B2 JP H0223430 B2 JPH0223430 B2 JP H0223430B2 JP 58048002 A JP58048002 A JP 58048002A JP 4800283 A JP4800283 A JP 4800283A JP H0223430 B2 JPH0223430 B2 JP H0223430B2
- Authority
- JP
- Japan
- Prior art keywords
- annular top
- tab
- top surface
- lid
- knob
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 239000011324 bead Substances 0.000 description 15
- 230000002093 peripheral effect Effects 0.000 description 15
- 238000005452 bending Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Closures For Containers (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
Description
【発明の詳細な説明】
本発明は易開封金属蓋に関し、さらに詳しく
は、スカート部、環状天面部および環状天面部よ
り半径方向内側に延びる摘みタブを有し、摘みタ
ブの両側縁の延長線に沿つて、環状天面部とスカ
ート部にスコア線のような引裂き用弱化線が形成
された外蓋と、環状天面部に包囲された孔部を閉
鎖する内蓋を備える易開封金属蓋に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an easy-to-open metal lid, and more particularly, it has a skirt portion, an annular top surface portion, and a knob tab extending radially inward from the annular top surface portion, and includes an extension line of both side edges of the knob tab. The present invention relates to an easy-to-open metal lid comprising an outer lid in which tear weakening lines such as score lines are formed on an annular top surface and a skirt portion, and an inner lid that closes a hole surrounded by the annular top surface.
従来第１図、第２図に示すタイプの、外蓋２お
よび内蓋３を備え、リシール性を有する易開封金
属蓋１が知られており、硝子びんなどの容器の密
封用に用いられている。すなわち外蓋２は、材料
費節約のため、例えば比較的薄い（例えば約0.20
〜0.28mm）アルミニウム（合金）薄板のような金
属薄板より一体成形により形成されている。そし
て短円筒状のスカート部４、スカート部の上端に
接続する環状天面部５、および環状天面部５の一
部より半径方向内側に延びる摘みタブ６を備え、
摘みタブ６の両側縁６ａの延長線に沿つて、環状
天面部５とスカート部４の外面には引裂き可能な
スコア線７が形成されている。 Conventionally, an easy-to-open metal lid 1 of the type shown in FIGS. 1 and 2, which includes an outer lid 2 and an inner lid 3 and has resealability, is known, and is used for sealing containers such as glass bottles. There is. That is, the outer cover 2 is made relatively thin (for example, about 0.20 mm) in order to save material costs.
~0.28mm) It is formed by integral molding from a thin metal sheet such as an aluminum (alloy) sheet. and a short cylindrical skirt portion 4, an annular top surface portion 5 connected to the upper end of the skirt portion, and a knob tab 6 extending radially inward from a portion of the annular top surface portion 5,
Tearable score lines 7 are formed on the outer surfaces of the annular top surface portion 5 and the skirt portion 4 along the extension lines of both side edges 6a of the knob tab 6.
スカート部４の下端には、断面円環状のカール
部４ａが形成されており、スコア線７はカール部
４ａまで延びている。環状天面部５は周縁ビード
部５ａと、その内側の環状平坦部５ｂを有してい
る。そして環状平坦部５ｂに包囲される孔部８を
閉鎖する、金属薄板よりなる内蓋３は、外蓋の環
状天面部５の内面およびスカート部４の内面に接
して延び、スカート部４の中腹で終つている。外
蓋の周縁ビード部５ａに対接する内蓋の周縁ビー
ド部３ａ近傍の内面には、内蓋３の端面３ｂを覆
つて、ガスケツト層９が付着されている。 A curled portion 4a having an annular cross section is formed at the lower end of the skirt portion 4, and the score line 7 extends to the curled portion 4a. The annular top surface portion 5 has a peripheral bead portion 5a and an annular flat portion 5b inside the peripheral bead portion 5a. The inner cover 3 made of a thin metal plate, which closes the hole 8 surrounded by the annular flat part 5b, extends in contact with the inner surface of the annular top surface part 5 of the outer cover and the inner surface of the skirt part 4, and extends in the middle of the skirt part 4. It ends with A gasket layer 9 is attached to the inner surface near the peripheral bead portion 3a of the inner lid, which is in contact with the peripheral bead portion 5a of the outer lid, and covers the end surface 3b of the inner lid 3.
摘みタブ６はリング状の摘み部６ｂと、環状天
面部５に連接する平坦な連接部６ｃを備えてい
る。摘みタブ６は、常時は周縁ビード部５ａの頂
部５a1より低いレベルに位置して、輪送中や取扱
い中等に異物に引掛つてスコア線７が破断するト
ラブルが起り難いようになつている。 The knob tab 6 includes a ring-shaped knob part 6b and a flat connecting part 6c connected to the annular top surface part 5. The tab 6 is normally located at a level lower than the top 5a1 of the peripheral bead portion 5a, so that troubles such as the score line 7 breaking due to catching on foreign objects during transport or handling are unlikely to occur.
開封のさいは摘みタブ６によつてスコア線７を
カール部４ａまで引裂いて、外蓋２のスコア線７
の内側の部分２ａを除去する。そうすると外蓋２
が円周方向に緩み、内蓋３は外蓋２と共に容器口
部から容易に取外される。内蓋３はリシールに用
いることができる。 When opening, tear the score line 7 to the curled part 4a using the knob 6, and tear the score line 7 on the outer lid 2.
Remove the inner part 2a. Then the outer lid 2
loosens in the circumferential direction, and the inner lid 3 and the outer lid 2 can be easily removed from the container mouth. The inner lid 3 can be used for resealing.
摘みタブ６によるスコア線７の引裂きは、通常
は摘みタブを斜上方に引上げ、引張ることによつ
て行なわれるが、たまたま第３図に示すように、
摘み部６ｂ内に手指を挿入した後、摘みタブ６を
連接部６ｃに沿つて180度近くまで折曲げ、矢印
方向、すなわち蓋１の天面にほぼ平行な方向（図
ではほぼ水平方向）に引張ると、比較的薄く撓み
易い材料よりなる平坦な連接部６ｃ、又はスコア
線７内の部分２ａの折曲げ部１０近傍の下部１０
ａ（まだ折曲げられていない部分）と上部１０ｂ
（折曲げられた部分）が接近し、折曲げ部１０の
曲率半径が非常に小さくなる。そのためまだ折曲
げられていない下部１０ａには、ほぼ水平方向の
力しか作用せず、スコア線７の破断が困難ない
し、不可能となる。 The tearing of the score line 7 by the gripping tab 6 is normally done by pulling up the gripping tab diagonally upward and pulling it, but as it happens, as shown in FIG.
After inserting your finger into the knob part 6b, bend the knob tab 6 nearly 180 degrees along the connecting part 6c, and bend it in the direction of the arrow, that is, in a direction almost parallel to the top surface of the lid 1 (almost horizontally in the figure). When pulled, the flat connecting portion 6c made of a material that is relatively thin and easy to bend, or the lower portion 10 near the bent portion 10 of the portion 2a within the score line 7.
a (the part that has not yet been bent) and the upper part 10b
(the bent portions) become closer together, and the radius of curvature of the bent portion 10 becomes very small. Therefore, only a substantially horizontal force acts on the lower portion 10a which has not yet been bent, making it difficult or impossible to break the score line 7.
本発明は以上に述べた従来技術の問題点の解消
を図ることを目的とする。 It is an object of the present invention to solve the problems of the prior art described above.
上記目的を達成するため、本発明はスカート
部、該スカート部の上端に接続する環状天面部、
および該環状天面部の一部より半径方向内側に延
びる摘みタブを有し、該摘みタブの内側縁の延長
線に沿つて、該環状天面部と該スカート部に一対
の引裂き用弱化線が形成された外蓋と、該外蓋の
下側に位置して、該環状天面部に包囲された孔部
を閉鎖する内蓋を備える易開封金属蓋において、
該環状天面部の該弱化線内側の部分と該摘みタブ
の部分には、半径方向外側寄りに第１の突起部
が、また内側寄りに第２の突起部が、開封のため
該摘みタブを180度近く折曲げたさい係合して、
折曲げ部の曲率半径が比較的大きくなるように形
成されていることを特徴とする易開封金属蓋を提
供するものである。 In order to achieve the above object, the present invention includes a skirt part, an annular top part connected to the upper end of the skirt part,
and a knob tab extending radially inward from a part of the annular top surface part, and a pair of weakened lines for tearing are formed in the annular top part and the skirt part along the extension line of the inner edge of the knob tab. An easy-to-open metal lid comprising an outer lid and an inner lid located below the outer lid and closing a hole surrounded by the annular top surface,
A first protrusion on the outside in the radial direction and a second protrusion on the inside in the inner part of the weakened line of the annular top surface and the knob tab for opening the bag. It engages when bent nearly 180 degrees,
The present invention provides an easy-to-open metal lid characterized in that the radius of curvature of the bent portion is formed to be relatively large.
以下実施例である図面を参照しながら本発明に
ついて説明する。 The present invention will be described below with reference to the drawings which are examples.
以下の図面において、第１図、第２図と同一符
号の部分は同様な部分を示す。第４図、第５図に
示す易開封蓋１１は、摘みタブ１６の摘み部１６
ｂが、スコア線７の内側部分２ａ側において直線
部１６b1を有する蒲鉾状になつており、直線部１
６b1と周縁ビード部５ａの間の連接部１６ｃおよ
び部分２ａを横断して、頂面１７ａがほぼ周縁ビ
ード部５ａの頂部５a1のレベルに位置する長方形
状の突起部１７が形成されている点以外は、金属
蓋１と同様である。 In the following drawings, parts with the same reference numerals as in FIGS. 1 and 2 indicate similar parts. The easy-open lid 11 shown in FIG. 4 and FIG.
b has a semicircular shape with a straight part 16b 1 on the inner part 2a side of the score line 7, and the straight part 1
A rectangular projection 17 whose top surface 17a is located approximately at the level of the top 5a 1 of the peripheral bead 5a is formed across the connecting portion 16c and the portion 2a between the peripheral bead 5a and the peripheral bead 5a. It is the same as the metal lid 1 except for this point.
そのため開封のさい第６図に示すように、摘み
タブ１６を180度近く折曲げて、矢印方向（ほぼ
水平方向）に引張ると、突起部１７の頂面１７ａ
が周縁ビード部５ａと当接して、突起部１７と周
縁ビード部５ａの間の部分２ａによつて形成され
る折曲げ部２０の曲率半径が比較的大きく（例え
ば約２mm以上）なる。従つて摘みタブ１６をほぼ
水平方向に引張つても、スコア線７には鉛直方向
の分力が作用して、スコア線７はスムースに引裂
かれる。 Therefore, when opening the package, as shown in FIG. 6, if the tab 16 is bent nearly 180 degrees and pulled in the direction of the arrow (almost horizontally),
comes into contact with the peripheral bead portion 5a, and the radius of curvature of the bent portion 20 formed by the portion 2a between the projection 17 and the peripheral bead portion 5a becomes relatively large (for example, approximately 2 mm or more). Therefore, even if the grip tab 16 is pulled in a substantially horizontal direction, a component force in the vertical direction acts on the score line 7, and the score line 7 is torn smoothly.
第７図、第８図に示す易開封金属蓋２１は、摘
みタブ２６の摘み部２６ｂの直線部２６b1のほぼ
両端部に対向、近接して１対の小突起部２７（そ
の頂部２７ａのレベルは周縁ビード部５ａの頂部
５a1のそれにほぼ等しく位置する）が形成されて
おり、また小突起部２７と周縁ビード部５ａとの
間の部分２ａを横断して、細長い長方形状の突起
部２８（その頂面２８ａのレベルは周縁ビード部
５ａの頂部５a1のそれにほぼ等しく位置する）が
形成されている。その他の構造は金属蓋１１と同
様である。 The easy-open metal lid 21 shown in FIG . 7 and FIG. The level is approximately equal to that of the top 5a1 of the peripheral bead portion 5a), and an elongated rectangular projection is formed across the portion 2a between the small projection 27 and the peripheral bead 5a. 28 (the level of whose top surface 28a is located approximately equal to that of the top 5a 1 of the peripheral bead portion 5a) is formed. The other structure is the same as that of the metal lid 11.
そのため開開封のさいは、第９図に示すよう
に、摘みタブ２６を180度近く折曲げると、先ず
小突起部２７の頂部２７ａと突起部２８の頂面２
８ａが当接して、比較的大きな曲率半径を有する
折曲げ部３０が形成され、摘み部２６ｂを矢印方
向、すなわちほぼ水平方向に引張つてもスコア線
７は容易に引裂かれる。さらに引裂きを進める
と、図示されないが、突起部２８と周縁ビード部
５ａが当接して、同様にして残りのスコア線７が
容易に引裂かれて、開封がスムースに行なわれ
る。 Therefore, when opening the package, as shown in FIG.
8a abut to form a bent portion 30 having a relatively large radius of curvature, and the score line 7 is easily torn even if the knob portion 26b is pulled in the direction of the arrow, that is, in the substantially horizontal direction. As the tearing is continued, the protrusion 28 and the peripheral bead 5a come into contact with each other (not shown), and the remaining score lines 7 are easily torn in the same way, allowing for smooth opening.
本発明の外蓋と内蓋を有する易開封金属蓋は、
環状天面部の弱化線内側の部分と摘みタブの部分
に、第１の突起部と第２の突起部が、開封のため
摘みタブを180度近く折曲げたさい係合して、折
曲げ部の曲率半径が比較的大きくなるとように形
成されているので、摘みタブをほぼ水平方向に引
張つた場合でも、弱化線に鉛直方向の分力が作用
して、引裂き開封がスムースに行なわれるという
効果を有する。 The easy-to-open metal lid having an outer lid and an inner lid of the present invention includes:
When the grip tab is bent nearly 180 degrees for opening, the first protrusion and the second protrusion engage with the inner part of the weakened line of the annular top surface and the grip tab, causing the bent portion to close. Since the radius of curvature is relatively large, even when the tab is pulled in an almost horizontal direction, a vertical component of force acts on the line of weakness, allowing smooth tearing and opening. has.
第１図は従来の易開封金属蓋の平面図、第２図
は第１図の蓋の−線に沿う縦断面図、第３図
は第１図の蓋の開封中の状態を示す縦断面図、第
４図は本発明の第１の実施例である易開封金属蓋
の平面図、第５図は第４図の蓋の−線に沿う
縦断面図、第６図は第４図の蓋の開封中の状態を
示す縦断面図、第７図は本発明の第２の実施例で
ある易開封蓋の平面図、第８図は第７図の−
線に沿う縦断面図、第９図は第７図の蓋の開封中
の状態を示す縦断面図である。
２……外蓋、３……内蓋、４……スカート部、
５……環状天面部、５ａ……周縁ビード部（第１
の突起部）、７……スコア線（引裂き用弱化線）、
８……孔部、１１，２１……易開封金属蓋、１
６，２６……摘み部、１６ｃ，２６ｃ……連接
部、１７……突起部（第２の突起部）、２０……
折曲げ部、２７……突起部（第２の突起部）、２
８……突起部（第１の突起部）、３０……折曲げ
部。
Figure 1 is a plan view of a conventional easy-to-open metal lid, Figure 2 is a vertical cross-sectional view of the lid in Figure 1 taken along the - line, and Figure 3 is a vertical cross-section showing the lid in Figure 1 while it is being opened. 4 is a plan view of an easy-to-open metal lid according to the first embodiment of the present invention, FIG. 5 is a longitudinal cross-sectional view of the lid shown in FIG. FIG. 7 is a plan view of the easy-to-open lid according to the second embodiment of the present invention, and FIG. 8 is a vertical sectional view showing the state of the lid being opened.
FIG. 9 is a longitudinal sectional view taken along the line, and FIG. 9 is a longitudinal sectional view showing the lid of FIG. 7 in an unsealed state. 2...Outer lid, 3...Inner cover, 4...Skirt part,
5... Annular top surface part, 5a... Peripheral bead part (first
), 7... score line (weakening line for tearing),
8... Hole, 11, 21... Easy-to-open metal lid, 1
6, 26...Knob portion, 16c, 26c...Connection portion, 17...Protrusion (second protrusion), 20...
Bending portion, 27... Protrusion (second protrusion), 2
8...Protrusion (first protrusion), 30...Bending part.
Claims (1)
環状天面部、および該環状天面部の一部より半径
方向内側に延びる摘みタブを有し、該摘みタブの
両側縁の延長線に沿つて、該環状天面部と該スカ
ート部に一対の引裂き用弱化線が形成された外蓋
と、該外蓋の下側に位置して、該環状天面部に包
囲された孔部を閉鎖する内蓋を備える易開封金属
蓋において、該環状天面部の該弱化線内側の部分
と該摘みタブの部分には、半径方向外側寄りに第
１の突起部が、また内側寄りに第２の突起部が、
開封のため該摘みタブを180度近く折曲げたさい
係合して、折曲げ部の曲率半径が比較的大きくな
るように形成されていることを特徴とする易開封
金属蓋。1 A skirt part, an annular top part connected to the upper end of the skirt part, and a knob tab extending radially inward from a part of the annular top part, and along an extension line of both side edges of the knob tab. An outer cover in which a pair of weakened lines for tearing are formed in the annular top surface and the skirt, and an inner cover located below the outer cover to close a hole surrounded by the annular top surface. In the easy-to-open metal lid, a first protrusion is provided on the outer side in the radial direction and a second protrusion is provided on the inner side in the inner part of the annular top surface portion and the knob tab,
An easy-to-open metal lid characterized in that the tab is engaged when the tab is bent nearly 180 degrees for opening, and the radius of curvature of the bent portion is relatively large.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58048002A JPS59174449A (en) | 1983-03-24 | 1983-03-24 | Easy open metallic cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58048002A JPS59174449A (en) | 1983-03-24 | 1983-03-24 | Easy open metallic cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59174449A JPS59174449A (en) | 1984-10-02 |
| JPH0223430B2 true JPH0223430B2 (en) | 1990-05-24 |
Family
ID=12791099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58048002A Granted JPS59174449A (en) | 1983-03-24 | 1983-03-24 | Easy open metallic cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59174449A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE469791B (en) * | 1988-02-16 | 1993-09-13 | Akerlund & Rausing Ab | Device at end closure for packaging |
| JP6466790B2 (en) * | 2015-06-22 | 2019-02-06 | 昭和アルミニウム缶株式会社 | Can lid and can body |
-
1983
- 1983-03-24 JP JP58048002A patent/JPS59174449A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59174449A (en) | 1984-10-02 |
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