JP2568795B2 - Easy open can lid - Google Patents
Easy open can lidInfo
- Publication number
- JP2568795B2 JP2568795B2 JP4309003A JP30900392A JP2568795B2 JP 2568795 B2 JP2568795 B2 JP 2568795B2 JP 4309003 A JP4309003 A JP 4309003A JP 30900392 A JP30900392 A JP 30900392A JP 2568795 B2 JP2568795 B2 JP 2568795B2
- Authority
- JP
- Japan
- Prior art keywords
- tab
- opening
- panel
- score
- inclined portion
- 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
Landscapes
- Containers Opened By Tearing Frangible Portions (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、コーヒー、紅茶、ビー
ル、炭酸飲料等の缶入り飲料缶の飲み口等を容易に開口
することができるイージーオープン缶蓋に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an easy-open can lid capable of easily opening a drinking spout of a beverage can containing coffee, tea, beer, carbonated beverage and the like.
【０００２】[0002]
【従来の技術】従来、この種のイージーオープン缶蓋
は、特公昭５７−４２５４４号公報に見られるものが知
られている。2. Description of the Related Art Conventionally, an easy-open can lid of this type is known from Japanese Patent Publication No. 57-42544.
【０００３】図５に示すように、この種の缶蓋３０は、
その中央パネル３１に開口部を形成する形状に沿って始
端から終端に連続する開口用スコア３２が設けられ、該
開口用スコア３２によって包囲され破断開口片３３´を
形成する破断開口部３３が設けられている。該開口用ス
コア３２の始端と終端とは所定間隔を存して設けられて
いるため、該開口用スコア３２に沿って破断したとき、
その始端と終端との間隔によって破断開口部３３を破断
開口することによって形成された破断開口片３３´が中
央パネル３１に繋がったままの状態となる。As shown in FIG. 5, this kind of can lid 30 is
An opening score 32 is provided from the beginning to the end along the shape forming the opening in the central panel 31, and a breaking opening 33 surrounded by the opening score 32 and forming a breaking opening piece 33 ′ is provided. Have been. Since the start and end of the opening score 32 are provided at a predetermined interval, when broken along the opening score 32,
A break opening piece 33 ′ formed by breaking the break opening 33 by the gap between the start end and the break end remains in a state of being connected to the central panel 31.
【０００４】該開口用スコア３２の破断は、中央パネル
３１の上面にリベット３４によって固定されたタブ３５
により行われる。開口用スコア３２の始端部は、タブ３
５の先端縁３６とリベット３４との間を破断開始位置と
され、タブ３５の先端縁３６は開口用スコアの破断開始
位置及び破断開口部３３に臨むように設けられている。The score of the opening score 32 is broken by a tab 35 fixed by a rivet 34 on the upper surface of the central panel 31.
It is performed by The opening end of the opening score 32 is a tab 3
The leading edge 36 of the tab 35 is provided so as to face the breaking start position of the opening score and the breaking opening 33.
【０００５】そして、破断開口部３３を開口するために
は、タブ３５の後端部の指掛け把持部３７に指を掛け
て、該タブ３５を中央パネル３１に対して起立する方向
に引き上げる。これにより、先ず、該タブ３５の先端縁
３６が支点となってリベット３４が持ち上げられ、同時
に該タブ３５の先端縁３６が破断開口部３３を押圧す
る。そして、破断開始位置の開口用スコア３２がリベッ
ト３４側と破断開口部３３側とで離反方向に引きちぎら
れるようにして破断され、同時にタブ３５の先端縁３６
によって前記破断開口片３３´が中央パネル３１の裏面
方向に押し下げられる。このとき、支点がリベット３４
に移ってタブ３５の先端縁３６が更に破断開口片３３´
を押し下げる。これにより、前記破断開口片３３´が中
央パネル３１に繋がった状態で中央パネル３１の裏面側
に折り込まれて、中央パネル３１に破断開口が形成され
る。[0005] In order to open the break opening 33, a finger is hooked on the finger-holding grip 37 at the rear end of the tab 35, and the tab 35 is pulled up in a direction to stand up with respect to the central panel 31. Thereby, first, the rivet 34 is lifted up with the leading edge 36 of the tab 35 serving as a fulcrum, and at the same time, the leading edge 36 of the tab 35 presses the break opening 33. Then, the opening score 32 at the breaking start position is broken so as to be torn in the separating direction between the rivet 34 side and the breaking opening 33 side, and at the same time, the leading edge 36 of the tab 35 is cut.
As a result, the break opening piece 33 ′ is pushed down toward the back surface of the central panel 31. At this time, the fulcrum is
And the leading edge 36 of the tab 35 is further broken open piece 33 '.
Press down. As a result, the breaking opening piece 33 ′ is folded into the back surface of the central panel 31 in a state where the breaking opening piece 33 ′ is connected to the central panel 31, and a breaking opening is formed in the central panel 31.
【０００６】このようなイージーオープン缶蓋は、ステ
ィオン・タブ・タイプと言われるものであり、開口した
とき破断開口片３３´が中央パネル３１に繋がれた状態
であると共に、タブ３５が中央パネル３１から分離不能
であるので、破断開口片３３´やタブ３５が不用意に或
いは無意識に捨てられてゴミとして処分されることな
く、空缶を再生するために回収する際に破断開口片３３
´とタブ３５とを空缶と共に回収することができる。[0006] Such an easy-open can lid is of a so-called "stion-tab type". When opened, the breakable opening piece 33 'is connected to the central panel 31, and the tab 35 is connected to the central panel. Since it is inseparable from the can 31, the break opening piece 33 ′ and the tab 35 are not inadvertently or unconsciously discarded and disposed of as garbage.
'And the tab 35 can be collected together with the empty can.
【０００７】しかし、この種の缶蓋３０は、破断開口部
３３を開口する際に、タブ３５の指掛け把持部３７に指
を掛けて引き上げようとすると、タブ３５は、リベット
３４を支点としてその先端部が下方に揺動するが、タブ
３５の先端縁３６は即刻破断開口片３３´に当接してし
まい、タブ３５の指掛け把持部３７と中央パネル３１と
の間には、指を掛けることができるだけの十分な隙間が
形成されない。これにより、指を指掛け把持部３７に十
分に掛けた状態でなくタブ３５を揺動させなければなら
ず、指掛け把持部３７を引き上げる力を大とすることが
できないので、破断開口部３３の開口が困難となる不都
合がある。However, when opening the breakable opening 33 of this kind of can lid 30, if the user puts his finger on the finger-holding grip 37 of the tab 35 and tries to pull it up, the tab 35 is supported by the rivet 34 as a fulcrum. Although the distal end portion swings downward, the distal end edge 36 of the tab 35 immediately contacts the break opening piece 33 ′, and a finger is placed between the finger-holding portion 37 of the tab 35 and the central panel 31. However, a sufficient gap is not formed. As a result, the finger can be fully
The tab 35 must be swung instead of being hung in a minute, and the force for pulling up the finger-holding grip 37 cannot be increased. Therefore, there is a disadvantage that the opening of the break opening 33 becomes difficult.
【０００８】かかる不都合に対して、タブの指掛け把持
部側の揺動範囲を比較的大とした缶蓋が、特開平４−２
０１８５２号公報に開示されている。To solve such a problem, Japanese Patent Laid-Open Publication No. 4-2 has disclosed a can lid in which the swing range of the tab on the finger-holding grip side is relatively large.
No. 01852.
【０００９】該缶蓋３８は、図６に示すように、その中
央パネル４４に開口用スコア４６にて刻設形成された破
断開口部３９のリベット４０側にタブ４１の先端部４２
が挿入し得る凹部４３が形成されている。As shown in FIG. 6, the can lid 38 is provided with a front end 42 of a tab 41 on a rivet 40 side of a break opening 39 formed in the center panel 44 with an opening score 46.
A concave portion 43 into which is inserted is formed.
【００１０】このように、タブ４１の先端部４２が、中
央パネル４４から常に離反した状態で臨んでいるため、
リベット４０を支点としてタブ４１を揺動させたとき、
タブ４１の先端部４２が中央パネル４４の凹部４３の底
面に当接されるまでの距離が長く、タブ４１の指掛け把
持部４５の揺動範囲が比較的大となり、該指掛け把持部
４５に指が掛け易い。As described above, since the distal end portion 42 of the tab 41 always faces away from the central panel 44,
When the tab 41 is swung about the rivet 40 as a fulcrum,
The distance until the distal end portion 42 of the tab 41 comes into contact with the bottom surface of the concave portion 43 of the central panel 44 is long, and the swing range of the finger hooking grip portion 45 of the tab 41 becomes relatively large. Is easy to hang.
【００１１】ところで、前記中央パネル４４は、缶容器
内に納められた内容物の影響によって些少であるが変形
する。By the way, the center panel 44 is deformed, albeit trivially, under the influence of the contents contained in the can.
【００１２】即ち、内容物が炭酸飲料やビール等である
とき、それらの内容物に含まれる炭酸ガスによって缶容
器内部の圧力が高くなる。缶容器内部の圧力が高い場合
には、缶蓋３８の中央パネル４４が缶容器内部から押し
上げられて外方に盛り上がるように変形する。このよう
に、中央パネル４４が盛り上がるように変形した場合に
は、該中央パネル４４に取り付けられているタブ４１は
リベット４０を除くその先端部４２及び指掛け把持部４
５が中央パネル４４から離反するので、前記凹部４３の
深さが浅くても指掛け把持部４５の揺動範囲が大きく、
タブ４１の指掛け把持部４５に容易に指を掛けることが
できる。That is, when the content is a carbonated beverage, beer, or the like, the pressure inside the can increases due to carbon dioxide contained in the content. When the pressure inside the can is high, the central panel 44 of the can lid 38 is pushed up from the inside of the can and deforms to bulge outward. As described above, when the center panel 44 is deformed so as to swell, the tab 41 attached to the center panel 44 has its tip end 42 excluding the rivet 40 and the finger grip 4
5 is separated from the center panel 44, so that even if the depth of the concave portion 43 is small, the swing range of the finger-holding grip 45 is large,
The finger can be easily hooked on the finger holding portion 45 of the tab 41.
【００１３】しかし、内容物がコーヒーや紅茶等である
とき、これらの内容物がホットパックされ、冷却するに
伴って缶容器内部の圧力が低くなる。缶容器内部の圧力
が低いと、中央パネル４４が缶容器の内部方向に引き付
けられて窪み込むように変形する。この場合には、中央
パネル４４に取り付けられているタブ４１は、リベット
４０を中心に指掛け把持部４５が中央パネル４４に密着
し、破断開口先端部４２と凹部４３の底面とが接近す
る。このため、前記凹部４３の深さ寸法が浅いと、指掛
け把持部４５の揺動範囲が小さくなり、タブ４１の指掛
け把持部４５に指が掛かり難くなり、指掛け把持部４５
を引き上げることが困難となる不都合がある。However, when the contents are coffee, tea, etc., the contents are hot-packed, and the pressure inside the can decreases as the contents are cooled. If the pressure inside the can is low, the central panel 44 is drawn toward the inside of the can and deforms so as to be depressed. In this case, in the tab 41 attached to the center panel 44, the finger-holding grip 45 is closely attached to the center panel 44 centering on the rivet 40, and the break opening tip 42 and the bottom surface of the recess 43 approach each other. For this reason, if the depth dimension of the concave portion 43 is small, the swing range of the finger hooking and holding portion 45 becomes small, and it becomes difficult for the finger to be hooked on the finger hooking and holding portion 45 of the tab 41, and
There is an inconvenience that it is difficult to raise the pressure.
【００１４】そこで、前記凹部４３の深さを深くするこ
とが考えられる。しかし、例えば、上記のように缶容器
の内容物が飲料のときには、破断開口部３９が飲み口と
して開口されるが、その飲み口となる破断開口部３９の
大きさは比較的小さく、このような小さな部分にその深
さが深い前記凹部４３を形成することが困難となる不都
合がある。Therefore, it is conceivable to increase the depth of the concave portion 43. However, for example, when the content of the can container is a beverage as described above, the break opening 39 is opened as a drinking spout, and the size of the break opening 39 serving as the drinking spout is relatively small. There is a disadvantage that it is difficult to form the concave portion 43 having a large depth in a very small portion.
【００１５】[0015]
【発明が解決しようとする課題】かかる不都合を解消し
て、本発明は、缶容器内部の圧力が低い場合に缶蓋の中
央パネルが缶容器の内部方向に引き付けられて窪み込む
ように変形しても、タブの指掛け把持部に容易に指を掛
けることができて開口が容易であるイージーオープン缶
蓋を提供することを目的とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, the present invention is directed to a case in which when the pressure inside the can is low, the center panel of the can lid is deformed so as to be attracted toward the inside of the can and depressed. It is another object of the present invention to provide an easy-open can lid in which a finger can be easily hooked on a finger-holding grip of a tab and an opening is easy.
【００１６】[0016]
【課題を解決するための手段】かかる目的を達成するた
めに、本発明は、中央パネルと、該中央パネルに始端と
終端とが間隔をなし始端から終端まで連続して破断開口
形状に刻設した開口用スコアと、該開口用スコアによっ
て包囲形成された破断開口部と、該破断開口部に臨む先
端部と指掛け把持部である後端部とを有し中央パネルの
上面にリベットにより固着されたタブとを備え、該タブ
によって前記開口用スコアに沿って前記破断開口部を破
断開口しつつ形成される破断開口片が中央パネルの裏面
方向に押し下げられると共に該中央パネルに繋がった状
態で中央パネルの裏面側に折り込まれるイージーオープ
ン缶蓋において、前記破断開口部の少なくとも前記タブ
側に、該タブの先端部と前記リベットとの間であって、
タブに接近する位置からタブより次第に離反するように
中央パネルの裏面方向に傾斜するパネル傾斜部を設け、
前記タブの先端部に、前記リベット側から開口用スコア
の始端部を越えてパネル傾斜部の上縁にかけて中央パネ
ルに沿って水平に延出する延出部と、該延出部の先端に
連続して前記パネル傾斜部より次第に離反するように傾
斜するタブ傾斜部とを設け、前記パネル傾斜部の上縁と
前記リベットとの間の中央パネル上の前記開口用スコア
の破断開始位置に開口用スコアの始端部を設けたことを
特徴とする。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a center panel, a starting end and a terminus of which are spaced apart from each other at a continuous opening from the beginning to the end. Opening score, a breaking opening surrounded by the opening score, and a front end facing the breaking opening and a rear end which is a finger-holding portion, and are fixed to the upper surface of the central panel by rivets. Tab, and a break opening piece formed by breaking the break opening along the opening score by the tab is formed on the rear surface of the central panel.
In an easy-open can lid that is pushed down in the direction and folded to the back side of the central panel while being connected to the central panel, at least on the tab side of the break opening, between the tip of the tab and the rivet So,
Provide a panel inclined portion that inclines in the direction of the back of the central panel so that it gradually separates from the tab from the position approaching the tab,
At the tip of the tab, an extension extending horizontally along the center panel from the rivet side to the upper edge of the panel inclined portion beyond the start end of the score for opening, and continuous with the tip of the extension. And a tab inclined portion inclined so as to be gradually separated from the panel inclined portion, and an opening score is provided at a breaking start position of the opening score on a central panel between an upper edge of the panel inclined portion and the rivet. It is characterized in that a starting point of the score is provided.
【００１７】[0017]
【作用】本発明により、缶蓋を開口するとき、先ず、タ
ブの指掛け把持部に指を掛ける。次いで、該指掛け把持
部を起立方向に引き上げて、リベットを介してタブの先
端部を中央パネルに当接させる。According to the present invention, when opening the can lid, first, a finger is hooked on the finger-holding grip of the tab. Next, the finger grip is raised in the upright direction, and the tip of the tab is brought into contact with the central panel via a rivet.
【００１８】このとき、タブの先端部は、該タブ傾斜部
と中央パネルの傾斜部とによって、適度な離反状態が維
持されており、例えば、缶容器内部が減圧されている場
合に中央パネルが缶容器の内部方向に引き付けられて窪
み込むように変形しても、前記指掛け把持部は容易に揺
動して指が掛け易い。At this time, the tip of the tab is maintained in an appropriate separated state by the inclined portion of the tab and the inclined portion of the central panel. For example, when the inside of the can is depressurized, the central panel is opened. Even if it is attracted toward the inside of the can container and deformed so as to be depressed, the finger-holding gripping portion easily swings and the finger is easily hooked.
【００１９】そして、更に前記タブの指掛け把持部を引
き上げる。このとき、引き上げられたタブは、前記延出
部の先端を支点としてリベットを上方に引き上げ、同時
に、該延出部の先端で破断開口部を下方に押圧する。こ
のように、リベット側と破断開口部側とで引き合って前
記リベットとタブの延出部の先端が当接される破断開口
部との間に存る開口用スコアの始端部が容易に破断され
る。Then, the finger grip of the tab is further pulled up. At this time, the raised tab raises the rivet upward with the tip of the extension as a fulcrum, and at the same time, presses the breaking opening downward with the tip of the extension. In this way, the rivet side and the break opening side attract each other, and the start end of the opening score between the rivet and the break opening where the tip of the extension of the tab comes into contact is easily broken. You.
【００２０】その後、更にタブの指掛け把持部を中央パ
ネルに対して起立する方向に引き起こしたとき、破断開
始位置が破断された破断開口部のパネル傾斜部に、該タ
ブのタブ傾斜部が密着される。このとき、前記タブ傾斜
部によって破断開口部のリベットに対向する側の開口用
スコア寄りにその先端が当接する。これにより、リベッ
トに対向する側の開口用スコアにおいても比較的小さな
破断力で破断され、開口不良等が防止される。Thereafter, when the finger-holding portion of the tab is further raised in the direction in which the tab rises with respect to the center panel, the tab inclined portion of the tab is brought into close contact with the panel inclined portion of the fracture opening at the fracture start position. You. At this time, the front end of the break opening portion comes into contact with the opening score on the side facing the rivet by the tab inclined portion. As a result, the opening score on the side facing the rivet is also broken by a relatively small breaking force, and poor opening and the like are prevented.
【００２１】[0021]
【実施例】本発明の一実施例を図面に基づいて説明す
る。An embodiment of the present invention will be described with reference to the drawings.
【００２２】図１は本実施例の缶蓋の平面図、図２は図
１のII−II線断面図、図３は要部を拡大して示す説明
図、図４（ａ）乃至（ｂ）は図１の缶蓋の破断開口工程
を示す説明図である。FIG. 1 is a plan view of a can lid according to the present embodiment, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3) is an explanatory view showing a breaking opening step of the can lid of FIG. 1.
【００２３】図１及び図２に示すように、イージーオー
プン缶蓋１（以下、缶蓋１と言う）は、一般にスティオ
ン・タブ・タイプと言われるものであり、缶胴にそのフ
ランジと嵌合して二重巻締をするカール２をその周縁に
備え、該カール２に包囲される内側に中央パネル３を備
えている。その中央パネル３には、缶蓋１を開口するた
めの開口用スコア４が刻設されており、その中央パネル
３の上面側には、リベット５を介してタブ６が固定され
ている。As shown in FIGS. 1 and 2, an easy-open can lid 1 (hereinafter referred to as a can lid 1) is generally referred to as a stion tub type, and a flange of the can is fitted to a can body. A curl 2 for double winding is provided on the periphery thereof, and a central panel 3 is provided on the inner side surrounded by the curl 2. An opening score 4 for opening the can lid 1 is engraved on the center panel 3, and a tab 6 is fixed to the upper surface side of the center panel 3 via a rivet 5.
【００２４】開口用スコア４は、図１に示すように、始
端７と終端８とが間隔９をなして破断開口形状に沿って
始端７から終端８に連続して設けられており、この開口
用スコア４によって包囲されて、大略楕円形状の破断開
口部１０が形成されている。As shown in FIG. 1, the opening score 4 is provided continuously from the start end 7 to the end 8 along the broken opening shape with the start end 7 and the end 8 forming an interval 9. A substantially elliptical break opening 10 is formed so as to be surrounded by the use score 4.
【００２５】また、前記開口用スコア４の破断開始位置
１１は、リベット５の近傍の中央パネル３上に設けられ
ている。The breaking start position 11 of the score 4 for opening is provided on the central panel 3 near the rivet 5.
【００２６】タブ６は、その後端部に指掛け把持部１２
を備え、その先端部２２寄りにリベット５によって中央
パネル３に固定される舌片１３を備えている。更に、該
タブ６は、リベット５側から開口用スコア４の破断開始
位置１１を越えてその近傍まで中央パネル３に沿って延
出する延出部１４を備え、該延出部１４の先端１５に連
続して前記破断開口部１０から次第に離反するタブ傾斜
部１６を備えている。The tab 6 has a finger grip 12 at its rear end.
And a tongue piece 13 fixed to the central panel 3 by the rivet 5 near the tip end 22 thereof. Further, the tab 6 has an extension portion 14 extending along the center panel 3 from the rivet 5 side to the vicinity of the opening score 4 beyond the breaking start position 11, and a tip 15 of the extension portion 14. And a tab inclined portion 16 which is gradually separated from the breaking opening 10 continuously.
【００２７】また、タブ６の延出部１４からタブ傾斜部
１６にかけての先端部２２は折返し積層されたカール状
に形成されており、タブ６の先端部２２の剛性が比較的
高く形成されている。The distal end 22 of the tab 6 from the extending portion 14 to the tab inclined portion 16 is formed in a folded and curled shape, and the rigidity of the distal end 22 of the tab 6 is relatively high. I have.
【００２８】前記舌片１３は、タブ６の先端側に連結す
る連結縁１７を備え、この連結縁１７を介してタブ６が
揺動自在となっている。The tongue 13 has a connecting edge 17 connected to the tip end of the tab 6, and the tab 6 can swing through the connecting edge 17.
【００２９】破断開口部１０には、図２に示すように、
タブ６側にパネル傾斜部１８を備える凹部１９が形成さ
れている。該凹部１９のパネル傾斜部１８は、その上縁
２０がタブ６の先端縁２１とリベット５との間であって
該リベット５に近接して位置されており、中央パネル３
の裏面方向に次第に傾斜し、その上方にタブ６のタブ傾
斜部１６が臨むように形成されている。As shown in FIG. 2, the breaking opening 10
A recess 19 having a panel inclined portion 18 is formed on the tab 6 side. The panel inclined portion 18 of the concave portion 19 has an upper edge 20 located between the leading edge 21 of the tab 6 and the rivet 5 and close to the rivet 5, and the central panel 3
Is formed so that the tab inclined portion 16 of the tab 6 faces upward.
【００３０】なお、本発明者は、図３に示すように、前
記タブ傾斜部１６と前記パネル傾斜部１８とが形成する
離反角度θを、１０°〜１５°とすることが好ましいこ
とを、図示しない種々の実験によって知見した。The inventor of the present invention has stated that, as shown in FIG. 3, the separation angle θ formed by the tab inclined portion 16 and the panel inclined portion 18 is preferably set to 10 ° to 15 °. It was found by various experiments not shown.
【００３１】これは、前記タブ傾斜部１６と前記パネル
傾斜部１８とが形成する離反角度が１０°より小さい角
度であると、例えば、缶容器内部が減圧され、中央パネ
ル３が缶容器の内部方向に引き付けられて窪み込むよう
に変形した場合には、タブ６の指掛け把持部１２を十分
に揺動させることができずに、該指掛け把持部１２に指
を掛けることが困難となるからであり、また、前記タブ
傾斜部１６と前記パネル傾斜部１８とが形成する離反角
度が１５°より大きい角度であると、指掛け把持部１２
に指を掛けることは容易となる反面、指掛け把持部１２
を大きく引き上げても前記破断開口部１０を十分に押圧
することが困難となるからである。If the separation angle formed between the tab inclined portion 16 and the panel inclined portion 18 is smaller than 10 °, for example, the inside of the can is decompressed, and the central panel 3 becomes the inside of the can. If it is deformed so as to be attracted in the direction and depressed, it is difficult to swing the finger grip 12 of the tab 6 sufficiently, and it becomes difficult to put a finger on the finger grip 12. If the separation angle formed by the tab inclined portion 16 and the panel inclined portion 18 is an angle larger than 15 °, the finger grip 12
It is easy to put a finger on the
This is because it is difficult to sufficiently press the breaking opening 10 even if the pressure is raised significantly.
【００３２】以上のことを鑑みて、前記タブ傾斜部１６
と前記パネル傾斜部１８との離反角度θを１０°〜１５
°とする場合には、前記タブ傾斜部１６は中央パネル３
の水平面を基準とした傾斜角度θ1 を５°以上として傾
斜させると共に、前記パネル傾斜部１８は中央パネル３
の水平面を基準とした傾斜角度θ2 を５°以上として傾
斜させて、両傾斜部１６，１８の角度の合計である離反
角度θを１０°〜１５°とすればよい。In view of the above, the tab inclined portion 16
And the panel inclined portion 18 at a separation angle θ of 10 ° to 15 °.
°, the tab inclined portion 16 is located at the center panel 3.
The inclination angle θ 1 with respect to the horizontal plane is set to 5 ° or more, and the panel inclination portion 18 is attached to the central panel 3.
The inclination angle θ 2 with respect to the horizontal plane is set to 5 ° or more, and the separation angle θ, which is the sum of the angles of the inclined portions 16 and 18, may be set to 10 ° to 15 °.
【００３３】そして、両傾斜部１６，１８を以上のよう
に形成することによって、前記タブ傾斜部１６において
は、例えば、図示しないが、缶容器に巻締める前に缶蓋
１を上下に積重ねたときにも、タブ傾斜部１６が適度に
傾斜しているので、タブ傾斜部１６の先端縁２１による
缶蓋１の内面が損傷することがなく、また、パネル傾斜
部１８を備える凹部１９を形成するときにも、上記のよ
うに、パネル傾斜部１８の傾斜角度θ2 が比較的小さく
てよいので、凹部１９を容易に形成することができる。By forming the two inclined portions 16 and 18 as described above, in the tab inclined portion 16, for example, although not shown, the can lids 1 are vertically stacked before being wound around the can container. In some cases, since the tab inclined portion 16 is appropriately inclined, the inner surface of the can lid 1 is not damaged by the leading edge 21 of the tab inclined portion 16 and the concave portion 19 having the panel inclined portion 18 is formed. In this case, as described above, since the inclination angle θ 2 of the panel inclined portion 18 may be relatively small, the concave portion 19 can be easily formed.
【００３４】次に、以上のように構成された缶蓋１の開
口操作を説明する。Next, the opening operation of the can lid 1 configured as described above will be described.
【００３５】本実施例の缶蓋１は、図４（ａ）に示すよ
うに、前記タブ６の指掛け把持部１２に指を掛けて引き
上げて、該タブ６全体を中央パネル３に対して起立する
方向に持ち上げる。該タブ６の先端縁２１は、タブ傾斜
部１６とパネル傾斜部１８とによって破断開口部１０か
ら離反しているので、該タブ６の延出部１４の先端１５
が破断開口部１０に当接するまで容易に持ち上げること
ができ、例えば、図示しない缶容器内部が減圧し、中央
パネル３がその裏面の方向に窪み込むように変形して
も、タブ６の指掛け把持部１２に容易に指を掛けること
ができる。As shown in FIG. 4 (a), the can lid 1 of this embodiment is pulled up by putting a finger on the finger grip 12 of the tab 6, and the entire tab 6 stands upright with respect to the central panel 3. Lift in the direction you want. Since the tip edge 21 of the tab 6 is separated from the break opening 10 by the tab inclined portion 16 and the panel inclined portion 18, the distal end 15 of the extension portion 14 of the tab 6 is formed.
Can be easily lifted until it comes into contact with the break opening 10. For example, even if the inside of the can (not shown) is decompressed and the central panel 3 is deformed so as to be depressed in the direction of the back surface thereof, the tab 6 can be gripped with fingers. A finger can be easily hung on the part 12.
【００３６】そして、タブ６を持ち上げると、先ず、延
出部１４の先端１５が前記パネル傾斜部１８の上縁２０
に当接する。その後、更にタブ６を持ち上げると、延出
部１４の先端１５の位置を支点として、前記リベット５
が引き上げられると共に、図４（ｂ）に示すように、延
出部１４の先端１５によって破断開口部１０が押圧され
て破断開始位置１１の開口用スコア４が破断される。こ
のように、破断開始位置１１の開口用スコア４は、リベ
ット５側と破断開口部１０側とによって互いに離反する
上下方向に同時に引張られるため、初期の破断力が比較
的小であっても容易に開口用スコア４の破断を開始する
ことができる。When the tab 6 is lifted, first, the tip 15 of the extending portion 14 is moved to the upper edge 20 of the panel inclined portion 18.
Abut. Thereafter, when the tab 6 is further lifted, the rivet 5 is pivoted around the position of the tip 15 of the extension portion 14 as a fulcrum.
4B, the breaking opening 10 is pressed by the distal end 15 of the extending portion 14 to break the opening score 4 at the breaking start position 11 as shown in FIG. 4B. As described above, since the score 4 for opening at the breaking start position 11 is simultaneously pulled in the vertical direction away from each other by the rivet 5 side and the breaking opening 10 side, it is easy even if the initial breaking force is relatively small. Then, the breaking of the score for opening 4 can be started.
【００３７】次いで、更にタブ６を持ち上げると、タブ
６のタブ傾斜部１６がパネル傾斜部１８に密着して破断
開口部１０を更に押圧し、前記開口用スコア４が破断開
始位置１１から徐々に破断される。このとき、タブ６の
先端部２２は、折り返し積層されてカール状に形成され
てその剛性が高いのでタブ６の変形が防止されて、小さ
な破断力によって開口用スコア４の破断を行うことがで
きる。Next, when the tab 6 is further lifted, the tab inclined portion 16 of the tab 6 comes into close contact with the panel inclined portion 18 and further presses the break opening 10, and the score 4 for opening gradually moves from the break start position 11. Is broken. At this time, the tip portion 22 of the tab 6 is folded back and formed into a curled shape and has a high rigidity, so that the deformation of the tab 6 is prevented, and the opening score 4 can be broken by a small breaking force. .
【００３８】そして、缶蓋１の破断開口部１０は、中央
パネル３の裏面方向に破断され、その結果形成された破
断開口片１０´が前記開口用スコア４の始端７と終端８
にある間隔９の中央パネル３に繋がった状態で該中央パ
ネル３の裏面側に折り曲げられて残留する。The breaking opening 10 of the can lid 1 is broken in the direction of the rear surface of the central panel 3, and the resulting breaking opening piece 10 ′ is formed with the start end 7 and the end 8 of the opening score 4.
In the state of being connected to the central panel 3 at the interval 9 in FIG.
【００３９】[0039]
【発明の効果】以上のことから明らかなように、本発明
によれば、前記タブにリベット側から破断開始位置の開
口用スコアを越えてその近傍まで延出する延出部を設け
たことによって、その先端が、前記リベットの近傍に位
置し、更に、前記タブの先端部は、タブ傾斜部とパネル
傾斜部とによって、適度な離反状態が維持されているの
で、該タブは延出部の先端が破断開口部に当接するまで
は揺動してその指掛け把持部を容易に持ち上げることが
できる。これにより、中央パネルが缶容器内部方向に引
き付けられて内方に窪み込むように変形していても、タ
ブの指掛け把持部に指を容易に掛けることができ、延出
部の先端によって確実に破断開口部が押圧されるので、
初期の破断力が比較的小であっても容易に開口用スコア
の破断を開始することができる。また、前記延出部は中
央パネルに沿って水平に延出されているので、タブの指
掛け把持部が不用意に持ち上げられても、該延出部がそ
の下面でスコア上に当接するので、不用意にスコアが破
断することを防止することができる。 As is apparent from the above, according to the present invention, according to the present invention, the tab is provided with an extending portion extending from the rivet side to the vicinity of the breaking start position beyond the score for opening. The tip is located near the rivet, and the tip of the tab is maintained in an appropriate separation state by the tab inclined portion and the panel inclined portion. Until the tip comes into contact with the breaking opening, the finger gripping portion can be easily lifted by swinging. Thereby, even if the center panel is deformed so as to be attracted in the can interior direction and depressed inward, the finger can be easily hooked on the finger hook gripping portion of the tab, and the tip of the extension portion surely catches the finger. Since the break opening is pressed,
Even when the initial breaking force is relatively small, the breaking of the opening score can be easily started. In addition, the extension portion is medium
It extends horizontally along the center panel, so the tab fingers
Even if the hanging handle is inadvertently lifted, the extension
Score on the lower surface of the
Disconnection can be prevented.
【００４０】更に、前記タブ傾斜部とパネル傾斜部とを
共に設けることによってタブの先端部と中央パネルの破
断開口部との間に適度な離反状態を維持することができ
る。そして、タブ傾斜部とパネル傾斜部との各別の傾斜
角度は比較的小さくてもタブの指掛け把持部を比較的大
きく揺動させることができるので、タブ傾斜部の傾斜角
度を小として、例えば、複数の缶蓋を積み重ねてもタブ
の先端縁による缶蓋の内面の損傷を防止することができ
ると共に、パネル傾斜部の傾斜角度が比較的小さくても
よいので、破断開口部が比較的小さくても該破断開口部
にパネル傾斜部を容易に形成することができる。Further, by providing both the tab inclined portion and the panel inclined portion, an appropriate separation state can be maintained between the tip portion of the tab and the break opening of the central panel. Then, even though the respective inclination angles of the tab inclined portion and the panel inclined portion are relatively small, the finger-holding grip portion of the tab can swing relatively large, so that the inclination angle of the tab inclined portion is reduced, for example, Even when a plurality of can lids are stacked, the inner surface of the can lid can be prevented from being damaged by the leading edge of the tab, and the angle of inclination of the panel inclined portion may be relatively small, so that the break opening is relatively small. Even in this case, a panel inclined portion can be easily formed in the break opening.
【００４１】従って、本発明によれば、タブの指掛け把
持部に指を掛け易く、また、タブを引き起こす力を比較
的小として、容易且つ確実に開口することができ、更
に、製造容易なイージーオープン缶蓋を提供することが
できる。Therefore, according to the present invention, the finger can be easily hooked on the finger-holding grip of the tab, the force that causes the tab to be relatively small can be easily and reliably opened, and furthermore, the easy manufacturing is easy. An open can lid can be provided.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の実施例の缶蓋の平面図。FIG. 1 is a plan view of a can lid according to an embodiment of the present invention.
【図２】図１のII−II線断面図。FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】要部を拡大して示す説明図。FIG. 3 is an explanatory diagram showing a main part in an enlarged manner.
【図４】図１の缶蓋の破断開口工程を示す説明図。FIG. 4 is an explanatory view showing a break opening step of the can lid of FIG. 1;
【図５】従来の缶蓋の断面図。FIG. 5 is a sectional view of a conventional can lid.
【図６】他の従来の缶蓋の断面図。FIG. 6 is a sectional view of another conventional can lid.
１…イージーオープン缶蓋、３…中央パネル、４…開口
用スコア、５…リベット、６…タブ、１０…破断開口
部、１０´…破断開口片、１１…破断開始位置、１２…
指掛け把持部、１４…延出部、１６…タブ傾斜部、１８
…パネル傾斜部。DESCRIPTION OF SYMBOLS 1 ... Easy open can lid, 3 ... Center panel, 4 ... Opening score, 5 ... Rivet, 6 ... Tab, 10 ... Break opening part, 10 '... Break opening piece, 11 ... Break start position, 12 ...
Finger grip part, 14 ... extension part, 16 ... tab inclined part, 18
... panel slope.
Claims (1)
とが間隔をなし始端から終端まで連続して破断開口形状
に刻設した開口用スコアと、該開口用スコアによって包
囲形成された破断開口部と、該破断開口部に臨む先端部
と指掛け把持部である後端部とを有し中央パネルの上面
にリベットにより固着されたタブとを備え、該タブによ
って前記開口用スコアに沿って前記破断開口部を破断開
口しつつ形成される破断開口片が中央パネルの裏面方向
に押し下げられると共に該中央パネルに繋がった状態で
中央パネルの裏面側に折り込まれるイージーオープン缶
蓋において、前記破断開口部の少なくとも前記タブ側
に、該タブの先端部と前記リベットとの間であって、タ
ブに接近する位置からタブより次第に離反するように中
央パネルの裏面方向に傾斜するパネル傾斜部を設け、前
記タブの先端部に、前記リベット側から開口用スコアの
始端部を越えてパネル傾斜部の上縁にかけて中央パネル
に沿って水平に延出する延出部と、該延出部の先端に連
続して前記パネル傾斜部より次第に離反するように傾斜
するタブ傾斜部とを設け、前記パネル傾斜部の上縁と前
記リベットとの間の中央パネル上の前記開口用スコアの
破断開始位置に開口用スコアの始端部を設けたことを特
徴とするイージーオープン缶蓋。1. A center panel, an opening score formed in the center panel with a start end and an end spaced apart from the start end to the end continuously in a break opening shape, and a break formed by being surrounded by the opening score. An opening, a tab having a front end facing the break opening and a rear end that is a finger-holding grip, and having a tab fixed to the upper surface of the central panel by rivets, and along the opening score by the tab. The breaking opening piece formed while breaking the breaking opening portion is in the direction of the rear surface of the central panel.
In the easy-open can lid which is pushed down to the back side of the center panel while being connected to the center panel, at least the tab side of the break opening is provided between the tip of the tab and the rivet. A panel inclined portion which is inclined in the direction of the rear surface of the central panel so as to be gradually separated from the tab from the position approaching the tab, and the leading end of the tab is extended from the rivet side beyond the starting end of the opening score. An extending portion extending horizontally along the central panel toward the upper edge of the inclined portion, and a tab inclined portion inclined to be gradually separated from the panel inclined portion continuously at the tip of the extended portion, A start end of the score for opening is provided at a breaking start position of the score for opening on a central panel between an upper edge of the panel inclined portion and the rivet. Pung-can lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4309003A JP2568795B2 (en) | 1992-11-18 | 1992-11-18 | Easy open can lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4309003A JP2568795B2 (en) | 1992-11-18 | 1992-11-18 | Easy open can lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06156488A JPH06156488A (en) | 1994-06-03 |
| JP2568795B2 true JP2568795B2 (en) | 1997-01-08 |
Family
ID=17987738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4309003A Expired - Lifetime JP2568795B2 (en) | 1992-11-18 | 1992-11-18 | Easy open can lid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2568795B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112074463A (en) * | 2018-04-03 | 2020-12-11 | 东洋制罐株式会社 | Can lid |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821168B (en) * | 2007-10-10 | 2012-08-15 | 斯多里机械有限责任公司 | Tab and can end employing the same |
| JP7242193B2 (en) * | 2018-04-27 | 2023-03-20 | 大和製罐株式会社 | Tubs, can lids and methods of manufacturing can lids |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4266688A (en) * | 1979-12-14 | 1981-05-12 | The Continental Group, Inc. | Easy access tab for vacuum packed products |
| JPH01182246A (en) * | 1988-01-12 | 1989-07-20 | Nippon Steel Corp | Easy-opening can lid unseparated tab |
-
1992
- 1992-11-18 JP JP4309003A patent/JP2568795B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112074463A (en) * | 2018-04-03 | 2020-12-11 | 东洋制罐株式会社 | Can lid |
| CN112074463B (en) * | 2018-04-03 | 2022-09-23 | 东洋制罐株式会社 | Can lid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06156488A (en) | 1994-06-03 |
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