JP2003155052A - Metal cap - Google Patents
Metal capInfo
- Publication number
- JP2003155052A JP2003155052A JP2002355004A JP2002355004A JP2003155052A JP 2003155052 A JP2003155052 A JP 2003155052A JP 2002355004 A JP2002355004 A JP 2002355004A JP 2002355004 A JP2002355004 A JP 2002355004A JP 2003155052 A JP2003155052 A JP 2003155052A
- Authority
- JP
- Japan
- Prior art keywords
- metal cap
- slit
- pressure
- container
- slits
- 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.)
- Granted
Links
Landscapes
- Closures For Containers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、金属製キャップ
に関し、さらに詳しくは、容器の内圧が異常に高くなっ
た場合に、自動的に容器内の圧力を外部に放出すること
により、金属製キャップの飛び出しを未然に防止した金
属製キャップに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal cap, and more particularly to a metal cap that automatically releases the pressure in the container to the outside when the internal pressure of the container becomes abnormally high. The present invention relates to a metal cap that prevents the pop-up of the metal.
【０００２】[0002]
【従来の技術】従来、図１４に示すように、金属製キャ
ップ５０上部の外周面には、幅の短いスリット５１ａを
有するナール部５１が複数個形成されている。具体的に
は、外径が３５〜４０φの金属製キャップ５０にあって
は、幅２ｍｍ程度の幅の短いスリット５１ａを有するナ
ール部５１が、２５〜３０個程度形成されている。この
幅の短いスリット５１ａを有するナール部５１の機能
は、消費者が飲用する場合、金属製キャップ５０を開栓
しようとして、金属製キャップ５０を回転した際に、こ
のナール部５１のスリット５１ａから炭酸飲料等の圧力
を、若干外に逃がすことにより、開栓時の内容物の突発
的噴出を防止するものである。すなわち、予め開栓の際
に若干の圧力を外部に放出するために形成されているも
のである。具体的には、図１４において、金属製キャッ
プ５０を四分の一ほど回した際に、容器５２の口部５３
の先端に形成されたカール部５４の天面と、金属製キャ
ップ５０の天面に設けられたパッキン５５の接触が緩
み、これらの間に隙間が形成されるため、この隙間から
瞬間的に炭酸等の圧力が、複数の幅の短いスリット５１
ａを有するナール部５１から外部に放出される。このよ
うな従来の金属製キャップの下側には、ブリッジを有す
る裾部が形成され、開栓時には金属製キャップの回転に
より、このブリッジが切断されて容器の口部が開封され
る。2. Description of the Related Art Conventionally, as shown in FIG. 14, a plurality of knurl portions 51 having slits 51a having a short width are formed on an outer peripheral surface of an upper portion of a metal cap 50. Specifically, in the metal cap 50 having an outer diameter of 35 to 40φ, about 25 to 30 knurled portions 51 having a short slit 51a having a width of about 2 mm are formed. The function of the knurled part 51 having the slit 51a having the short width is that when the consumer drinks, the metal cap 50 is rotated from the slit 51a of the knurled part 51 when the metal cap 50 is rotated to open the metal cap 50. The pressure of the carbonated drink or the like is released to the outside to prevent the sudden ejection of the contents at the time of opening. That is, it is formed in advance so as to release some pressure to the outside when the stopper is opened. Specifically, in FIG. 14, when the metal cap 50 is turned about a quarter, the mouth portion 53 of the container 52 is
The top surface of the curl portion 54 formed at the tip of the cap and the packing 55 provided on the top surface of the metal cap 50 loosen contact with each other, and a gap is formed between them, so that the carbon dioxide is instantaneously discharged from this gap. The pressure is equal to a plurality of short slits 51
It is released from the knurled part 51 having a. A skirt having a bridge is formed on the lower side of such a conventional metal cap, and the opening of the container is opened by cutting the bridge by the rotation of the metal cap when the cap is opened.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の技術においては、コーラ等の炭酸飲料が開栓
の際に、噴出するのを、予め防止するために意図的に形
成されているものである。そして、不注意により車内、
室内での置き忘れ等により放置される態様としては、容
器を一度も開栓しないで放置される場合と、一度開栓さ
れて飲用された後、再度キャップで封鎖される場合の２
態様がある。このような場合、いずれも容器周囲の環境
が異常に高温になった場合、容器の内圧も異常に高くな
る。そして、その限界において金属キャプが突然飛び出
すので、極めて危険である。しかし、従来このような場
合の対応は極めて不十分であった。However, in such a conventional technique, a carbonated beverage such as cola is intentionally formed in order to prevent the carbonated beverage from spouting when the cap is opened. Is. And inadvertently,
As a mode of being left in the room due to misplacement or the like, there are two cases: one in which the container is left unopened, and the other in which it is once opened and consumed, and then closed again with a cap.
There are modes. In any of these cases, if the environment around the container becomes abnormally high, the internal pressure of the container also becomes abnormally high. And at that limit, the metal cap suddenly pops out, which is extremely dangerous. However, conventionally, such a case has been extremely insufficient.
【０００４】この発明は、このような従来の課題に着目
してなされたもので、車内、室内に置き忘れた炭酸飲料
等の容器の内圧が異常に高くなった場合に、自動的に金
属製キャップが変形し、容器内の内容物の圧力を外部に
放出でき、突発的な金属製キャップの飛び出しを未然に
防止した金属製キャップを提供することを目的とする。The present invention has been made in view of such a conventional problem, and when the internal pressure of a container such as a carbonated beverage left in a vehicle or a room becomes abnormally high, a metal cap is automatically provided. It is an object of the present invention to provide a metal cap that is deformed, can release the pressure of the contents in the container to the outside, and can prevent the sudden ejection of the metal cap.
【０００５】[0005]
【課題を解決するための手段】この課題を解決するた
め、請求項１記載の発明に対応する手段は、炭酸飲料等
の内容物の圧力を外部に放出するために、外周面に複数
のナール部を形成した金属製キャップにおいて、金属製
キャップの外周面に、複数の幅の短いスリットを有する
ナール部と、少なくとも一個以上の幅の長いスリットを
有するナール部とを混在させて形成したことを特徴とす
る金属製キャップである。In order to solve this problem, the means corresponding to the invention described in claim 1 has a plurality of knurls on the outer peripheral surface in order to release the pressure of the contents such as carbonated drinks to the outside. In a metal cap having a portion formed on the outer peripheral surface of the metal cap, a knurl portion having a plurality of short slits and a knurl portion having at least one or more long slits are mixed and formed. It is a characteristic metal cap.
【０００６】請求項２記載の発明に対応する手段は、炭
酸飲料等の内容物の圧力を外部に放出するために、外周
面に複数のナール部を形成した金属製キャップにおい
て、隣り合うナール部の間隙に、新たなスリットを形成
することにより、隣り合うナール部のスリット同士が連
通する幅の長いスリットを形成し、金属製キャップの外
周面に、該幅の長いスリットを少なくとも１個以上形成
したことを特徴とする金属製キャップである。According to a second aspect of the present invention, in order to release the pressure of the contents such as carbonated beverages to the outside, in a metal cap having a plurality of knurled portions on its outer peripheral surface, adjacent knurled portions are provided. By forming a new slit in the gap, a long slit is formed so that the slits of the adjacent knurl portions communicate with each other, and at least one long slit is formed on the outer peripheral surface of the metal cap. It is a metal cap that is characterized.
【０００７】請求項３記載の発明に対応する手段は、幅
の短いスリット又は幅の長いスリットを、ナール部の左
端又は右端から、はみ出して延長して形成したことを特
徴とする金属製キャップである。According to a third aspect of the present invention, there is provided a metal cap characterized in that a slit having a short width or a slit having a long width is formed so as to extend from the left end or the right end of the knurl portion. is there.
【０００８】[0008]
【発明の実施の形態】次に、この発明の実施の形態を図
面に基づいて説明する。図１〜図７は、本発明に係る金
属製キャップの第１実施の形態を示す図面である。図２
は、金属製キャップ１の外周面に、幅の短いスリット
（約２．０ｍｍ）を有するナール部を２６ヶ所及び幅の
長いスリット（約６．０ｍｍ）を有するナール部を１ヶ
所形成した場合の実施の態様を示す図面であり、図３
は、金属製キャップ１の外周面に、幅の短いスリット
（約２．０ｍｍ）を有するナール部を２２ヶ所及び幅の
長いスリット（約６．０ｍｍ）を有するナール部を、任
意の場所に３ヶ所形成した場合の実施の態様を示す図面
である。１は容器であり、アルミニウム等の金属、合成
樹脂又はガラス等の素材で造られている。そして、この
容器１内には、炭酸飲料、ビール等が充填されている。
容器１の口部２には雄ねじ４が形成され、この雄ねじ４
には、金属製キャップ３の雌ねじ５が螺合されている。
そして、内容物に対する金属製キャップの耐圧力を上
げ、金属製キャップの飛び出しを未然に防止するために
は、この雄ねじ４と雌ねじ５の螺合する寸法（ねじ高
さ）を大きくするか、又は雄ねじ４と雌ねじ５のねじ数
を増加することも考えられる。しかし、これらを実行す
ることは、開栓時における開栓トルクが異常に大きくな
り、使用者の開栓官能を著しく損なう。そこで、このよ
うな容器１と金属製キャップ３にあっては、雄ねじ４と
雌ねじ５の螺合する寸法（ねじ高さ）を浅くすると共
に、雄ねじ４と雌ねじ５のねじ数を少なく制限せざるを
得ない。BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described with reference to the drawings. 1 to 7 are drawings showing a first embodiment of a metal cap according to the present invention. Figure 2
Is a case where 26 knurled portions having short slits (about 2.0 mm) and 1 knurled portion having long slits (about 6.0 mm) are formed on the outer peripheral surface of the metal cap 1. 3 is a drawing showing an embodiment, and FIG.
On the outer peripheral surface of the metal cap 1, 22 knurled portions having short slits (about 2.0 mm) and knurled portions having long slits (about 6.0 mm) are provided at arbitrary positions. It is drawing which shows the aspect of embodiment at the time of forming in multiple places. Reference numeral 1 denotes a container, which is made of a metal such as aluminum, a synthetic resin, or a material such as glass. The container 1 is filled with carbonated drink, beer and the like.
A male screw 4 is formed on the mouth portion 2 of the container 1, and the male screw 4
The female screw 5 of the metal cap 3 is screwed into the.
In order to increase the pressure resistance of the metal cap against the contents and prevent the metal cap from popping out, the size (screw height) in which the male screw 4 and the female screw 5 are screwed together is increased, or It is also conceivable to increase the number of male threads 4 and female threads 5. However, by executing these, the cap opening torque at the time of cap opening becomes abnormally large, and the user's cap opening function is significantly impaired. Therefore, in the container 1 and the metal cap 3 as described above, the dimension (screw height) in which the male screw 4 and the female screw 5 are screwed is made shallow, and the number of the male screw 4 and the female screw 5 is limited to a small number. I don't get.
【０００９】本発明者はこの点を考慮し、容器内の内圧
が１ＭＰａ以上の異常な圧力になって、初めて金属製キ
ャップが飛び出るような危険な状態になる前に、容器内
の内圧が０．７〜０．８ＭＰａの状態になった時、自動
的かつ意図的に、予め金属製キャップ３を変形させるこ
とにより、圧力を外部に放出し、金属製キャップ３の飛
び出しの危険を回避することを思いたった。本出願の発
明に係る金属製キャップの特徴は、金属製キャップ３の
外周面に形成されるナール部のスリットの幅に特徴があ
る、すなわち、図２及び図３に示すように、金属製キャ
ップ３の外周面に形成された幅の短いスリット６ａを有
するナール部６に、少なくとも一個以上の幅の長いスリ
ット７ａを有するナール部７を混在させて形成したもの
である。この幅の長いスリット７ａを有するナール部７
の数については、容器の容積、口部の径、容器の材質、
内容物の種類、圧力等を考慮して、任意に決定すること
ができることはいうまでもない。そして、必要に応じ
て、幅の長いスリット７ａ又は幅の短いスリット６ａ
を、ナール部６、７の左端又は右端から、はみ出して延
長して形成することも可能である。これにより、スリッ
トをより長く形成することが可能となる。なお、図４に
示す幅の短いスリット６ａを有するナール部６の幅Ｘ
は、１．０〜３．０ｍｍ程度が適し、又図５に示すよう
に、幅の長いスリット７ａを有するナール部７の幅Ｙ
は、４．０〜７．０ｍｍ程度が適する。図２、図３のＡ
−Ａ線拡大断面及びＢ−Ｂ線拡大断面を、図６及び図７
に示す。なお、本発明において、幅の短いスリット６ａ
を有するナール部６は、前述した従来のナール部と同じ
機能を果たすものである。すなわち、開栓操作の際に内
容物の圧力を、若干外部に放出する機能を有する。In consideration of this point, the present inventor considers that the internal pressure in the container is 0 before the internal pressure in the container becomes an abnormal pressure of 1 MPa or more before the metal cap pops out. When the state of 7 to 0.8 MPa is reached, automatically and intentionally deforming the metal cap 3 in advance to release the pressure to the outside and avoid the risk of the metal cap 3 popping out. I thought The metal cap according to the invention of the present application is characterized by the width of the slit of the knurl portion formed on the outer peripheral surface of the metal cap 3, that is, as shown in FIG. 2 and FIG. The knurled portion 6 having a short width slit 6a formed on the outer peripheral surface of No. 3 is mixed with at least one knurled portion 7 having a long width slit 7a. The knurled portion 7 having the slit 7a having the long width
About the number of, the volume of the container, the diameter of the mouth, the material of the container,
Needless to say, it can be arbitrarily determined in consideration of the type of contents, pressure and the like. Then, as necessary, a slit 7a having a long width or a slit 6a having a short width is formed.
Can be formed so as to extend from the left end or the right end of the knurled portions 6 and 7 and extend. This makes it possible to form the slit longer. The width X of the knurled portion 6 having the short slit 6a shown in FIG.
Is preferably about 1.0 to 3.0 mm, and as shown in FIG. 5, the width Y of the knurl portion 7 having the long slit 7a.
Is preferably about 4.0 to 7.0 mm. 2 and 3A
6 and 7 are a cross section taken along line A-A and a line taken along line BB.
Shown in. In the present invention, the slit 6a having a short width is used.
The knurled portion 6 having the same function as the above-mentioned conventional knurled portion. That is, it has a function of releasing the pressure of the contents to some extent outside during the opening operation.
【００１０】図８及び図９は、この発明に係る第２実施
の形態を示す図面である。この第２実施の形態の特徴
は、隣り合うナール部６の間隙１０に、新たなスリット
１１を形成し、３個の隣り合うナール部６のスリット同
士を各々連通し、幅の長いスリット１６ｂを形成したも
のである。又図１０及び図１１は、この発明に係る第３
実施の形態を示す図面である。この第３実施の形態の特
徴は、隣り合うナール部６の間隙１０に、新たなスリッ
ト１１を形成し、２個の隣り合うナール部６のスリット
同士を各々連通し、幅の長いスリット１６ｃを形成した
ものである。さらに、図１２及び図１３は、この発明に
係る第４実施の形態を示す図面である。この第４実施の
形態の特徴は、隣り合うナール部６の間隙１０に、新た
なスリット１１を形成し、２個の隣り合うナール部６、
７のスリット同士を各々連通し、幅の長いスリット１６
ｄを形成したものである。この第４実施の態様は、隣り
合う２個のナール部は、各々幅の長いナール部７と幅の
短いナール部６である。以上、幅の長いスリット１６
ｂ、１６ｃ、１６ｄを、金属製キャップ３の外周面に、
何箇所設けるかについては、容器の容積、口部の径、容
器の材質、内容物の種類、圧力等を考慮して、任意に決
定することができることはいうまでもない。なお、必要
に応じて、幅の長いスリット１６ｂ、１６ｃ、１６ｄの
右端又は左端を、各々隣の間隙１０まで延長させること
により、さらにスリットをより長く形成することも可能
である。8 and 9 are drawings showing a second embodiment according to the present invention. The feature of the second embodiment is that new slits 11 are formed in the gaps 10 between the adjacent knurl portions 6, three slits of the adjacent knurl portions 6 are communicated with each other, and a long slit 16b is formed. It was formed. Further, FIGS. 10 and 11 show a third embodiment according to the present invention.
It is drawing which shows embodiment. The feature of the third embodiment is that a new slit 11 is formed in the gap 10 between the adjacent knurl portions 6, two slits of the two adjacent nar portions 6 are communicated with each other, and a long slit 16c is formed. It was formed. 12 and 13 are drawings showing a fourth embodiment according to the present invention. The feature of the fourth embodiment is that a new slit 11 is formed in the gap 10 between the adjacent knurl portions 6 and two adjacent knurl portions 6,
7 slits are connected to each other, and a long slit 16
d is formed. In the fourth embodiment, two adjacent knurls are a knurl 7 having a long width and a knurl 6 having a short width. Above, long slit 16
b, 16c, 16d on the outer peripheral surface of the metal cap 3,
It goes without saying that the number of places to be provided can be arbitrarily determined in consideration of the volume of the container, the diameter of the mouth, the material of the container, the type of contents, the pressure and the like. If necessary, the slits 16b, 16c, and 16d having long widths may be extended further to the adjacent gaps 10 at the right end or the left end, respectively, so that the slits can be made longer.
【００１１】次に、この発明に係る金属製キャップの第
１実施の形態の作用について説明する。コーラ等の炭酸
飲料が充填された容器が、車内、室内に置き忘れられ、
温度上昇により、容器内の内圧が異常に高くなった場合
に、本発明に係る金属製キャップ１は、図５に示すよう
に、金属製キャップ１の外周面に設けられた、少なくと
も一個以上の幅の長いスリット７ａを有するナール部７
及びその上部の天面３ａが、圧力の作用で二点鎖線で示
すように、湾曲して変形する。そして、上方に持ち上が
り変形することにより、図７に示すように、この部位の
金属製キャップ３の天面３ａ及びパッキン９が、容器１
の口部２先端に形成されたカール部８と遊離し、この遊
離した隙間から、スリット７ａを経由して圧力が外部に
放出される。したがって、本発明に係る金属製キャップ
１においては、自動的に金属製キャップ１が変形して、
圧力が外部に放出されるので、金属製キャップ１の突発
的飛び出しによる危険を回避することができる。同様に
第２、第３及び第４実施の形態においても、各々幅の長
いスリット１６ｂ、１６ｃ、１６ｄの上部の天面３ａ
が、圧力の作用で湾曲して変形し、上方に持ち上がるこ
とにより圧力が外部に放出される。Next, the operation of the first embodiment of the metallic cap according to the present invention will be described. A container filled with carbonated drinks such as cola was left in the car or room,
When the internal pressure in the container becomes abnormally high due to the temperature rise, the metal cap 1 according to the present invention is provided with at least one or more metal caps 1 provided on the outer peripheral surface of the metal cap 1, as shown in FIG. Nar part 7 having a slit 7a having a long width
The upper surface 3a and the upper surface 3a are curved and deformed by the action of pressure as shown by the chain double-dashed line. Then, as it is lifted up and deformed, as shown in FIG. 7, the top surface 3a of the metal cap 3 and the packing 9 at this portion are moved to the container 1
It is released from the curl portion 8 formed at the tip of the mouth portion 2, and the pressure is released to the outside from the released gap via the slit 7a. Therefore, in the metal cap 1 according to the present invention, the metal cap 1 is automatically deformed,
Since the pressure is released to the outside, it is possible to avoid the risk of the metal cap 1 suddenly popping out. Similarly, also in the second, third and fourth embodiments, the top surface 3a above the slits 16b, 16c and 16d having long widths, respectively.
However, it is bent and deformed by the action of pressure and lifted upward to release the pressure to the outside.
【００１２】この発明に係る金属製キャップの内圧リー
ク試験の結果を以下に示す。
（１）
（試験条件）
・缶外径；６６φ、缶高さ；１６４ｍｍ、口部外径；３
７．８ｍｍφ、缶胴の肉厚；０．１３５ｍｍ
・有効ねじ数；１．７巻き
・金属製キャップの外径；３８．５ｍｍ（ナール部の
径）
・ナール部の数；幅の短いスリット（約２．０ｍｍ）を
有するナール部が２８ヶ所
・ナール部の数；幅の長いスリット（約６．０ｍｍ）を
有するナール部が０ヶ所
・金属製キャップを締めた容器の缶底部からエアーを供
給し、容器内の圧力を徐々に上げ、金属製キャップが飛
んだ圧力を調べる。
・試験回数；Ｎ＝３
（２）
（試験条件）
・缶外径；６６φ、缶高さ；１６４ｍｍ、口部外径；３
７．８ｍｍφ、缶胴の肉厚；０．１３５ｍｍ
・有効ねじ数；１．７巻き
・金属製キャップの外径；３８．５ｍｍ（ナール部の
径）
・ナール部の数；幅の短いスリット（約２．０ｍｍ）を
有するナール部が２６ヶ所
・ナール部の数；幅の長いスリット（約６．０ｍｍ）を
有するナール部が１ヶ所
・金属製キャップを締めた容器の缶底部からエアーを供
給し、容器内の圧力を徐々に上げ、リークが発生した圧
力を測定する。
・試験回数；Ｎ＝１２
（３）
（試験条件）
・缶外径；６６φ、缶高さ；１６４ｍｍ、口部外径；３
７．８ｍｍφ、缶胴の肉厚；０．１３５ｍｍ
・有効ねじ数；１．７巻き
・金属製キャップの外径；３８．５ｍｍ（ナール部の
径）
・ナールの数；幅の長いスリット（約６．０ｍｍ）を有
するナール部が３ヶ所
・金属製キャップを締めた容器の缶底部からエアーを供
給し、容器内の圧力を徐々に上げ、リークが発生した圧
力を測定する。
・試験回数；Ｎ＝３
上記試験結果（２）（３）によれば、本発明に係る金属
製キャップを用いた場合、いずれも、内圧が１ＭＰａ以
上に上昇する前の０．７ＭＰａ〜０．８ＭＰａになった
時、容器内の圧力を自動的に外部に放出することができ
た。試験結果では、幅の長いスリットを有するナール部
を、少なくとも３ヶ所程度設けることにより、より確実
で安定した内圧の放出が可能となり、金属製キャップの
飛び出しを確実に防止できることが判明した。The results of the internal pressure leak test of the metal cap according to the present invention are shown below. (1) (Test conditions) ・ Can outer diameter: 66φ, can height: 164 mm, mouth outer diameter: 3
7.8 mmφ, can body thickness; 0.135 mm ・ Number of effective screws; 1.7 windings ・ Outer diameter of metal cap; 38.5 mm (diameter of knurled part) ・ Number of knurled parts; Short width slit ( There are 28 knurls with about 2.0 mm) and the number of knurls; 0 knurls with long slits (about 6.0 mm) ・ Air is supplied from the bottom of the container with the metal cap closed. Then, gradually increase the pressure in the container and check the pressure that the metal cap flew.・ Number of tests; N = 3 (2) (Test conditions) ・ Can outer diameter: 66φ, can height: 164 mm, mouth outer diameter: 3
7.8 mmφ, can body thickness; 0.135 mm ・ Number of effective screws; 1.7 windings ・ Outer diameter of metal cap; 38.5 mm (diameter of knurled part) ・ Number of knurled parts; Short width slit ( There are 26 knurled parts with about 2.0 mm) and the number of knurled parts; one knurled part with a long slit (about 6.0 mm) ・ Air is supplied from the bottom of the can of the container with the metal cap closed. Then, gradually increase the pressure in the container and measure the pressure at which the leak occurred.・ Number of tests; N = 12 (3) (Test conditions) ・ Can outer diameter: 66φ, can height: 164 mm, mouth outer diameter: 3
7.8 mmφ, can body thickness; 0.135 mm ・ Number of effective screws; 1.7 windings ・ Outer diameter of metal cap; 38.5 mm (diameter of knurl part) ・ Number of knurls; Long slit (approx. Air is supplied from the bottom of the can of the container with the metal cap fastened, and the pressure inside the container is gradually increased, and the pressure at which a leak occurs is measured.・ Number of tests; N = 3 According to the above test results (2) and (3), when the metal cap according to the present invention is used, when the internal pressure is 0.7 MPa to 0.8 MPa before rising to 1 MPa or more, the container is The internal pressure could be released to the outside automatically. From the test results, it was found that by providing at least three knurled portions having long slits, it is possible to more reliably and stably release the internal pressure and to prevent the metal cap from popping out.
【００１３】[0013]
【発明の効果】以上、説明してきたように、この発明に
よれば、容器の内圧が限界まで上昇する前に、自動的に
容器内の圧力を外部に放出することができるので、従来
のように高温の車内等において、容器内の圧力が１ＭＰ
ａ以上にも上昇し、突然金属製キャップが飛び出す等の
危険を確実に回避することができる効果を奏する。As described above, according to the present invention, the internal pressure of the container can be automatically released to the outside before the internal pressure of the container rises to the limit. The pressure inside the container is 1MP when the temperature is high
There is an effect that it is possible to surely avoid the danger that the metal cap is raised more than a and suddenly pops out.
【図面の簡単な説明】[Brief description of drawings]
【図１】この発明に係る第１実施の形態の金属製キャッ
プ及び容器を示す正面図。FIG. 1 is a front view showing a metal cap and a container according to a first embodiment of the present invention.
【図２】この発明に係る第１実施の形態の金属製キャッ
プを示す拡大正面図。FIG. 2 is an enlarged front view showing the metal cap of the first embodiment according to the present invention.
【図３】この発明に係る第１実施の形態の金属製キャッ
プを示す拡大正面図。FIG. 3 is an enlarged front view showing the metal cap of the first embodiment according to the present invention.
【図４】この発明に係る金属製キャップの幅の短いスリ
ットを有するナール部を示す拡大正面図。FIG. 4 is an enlarged front view showing a knurl portion having a slit having a short width of the metal cap according to the present invention.
【図５】この発明に係る金属製キャップの幅の長いスリ
ットを有するナール部を示す拡大正面図。FIG. 5 is an enlarged front view showing a knurl portion having a slit having a long width of the metal cap according to the present invention.
【図６】図２のＡ−Ａ線拡大端面図。FIG. 6 is an enlarged end view taken along line AA of FIG.
【図７】図２のＢ−Ｂ線拡大端面図。FIG. 7 is an enlarged end view taken along line BB of FIG.
【図８】この発明に係る第２実施の形態の金属製キャッ
プ及び容器を示す正面図。FIG. 8 is a front view showing a metal cap and a container according to a second embodiment of the present invention.
【図９】図８のＣ部拡大正面図FIG. 9 is an enlarged front view of part C of FIG.
【図１０】この発明に係る第３実施の形態の金属製キャ
ップ及び容器を示す正面図。FIG. 10 is a front view showing a metal cap and a container according to a third embodiment of the present invention.
【図１１】図１０のＤ部拡大正面図FIG. 11 is an enlarged front view of part D of FIG.
【図１２】この発明に係る第４実施の形態の金属製キャ
ップ及び容器を示す正面図。FIG. 12 is a front view showing a metal cap and a container according to a fourth embodiment of the present invention.
【図１３】図１２のＥ部拡大正面図FIG. 13 is an enlarged front view of part E of FIG.
【図１４】従来の金属製キャップを螺合した状態を示す
正面図。FIG. 14 is a front view showing a state in which a conventional metal cap is screwed.
【図１５】図１４のＳ−Ｓ線拡大断面図。15 is an enlarged cross-sectional view taken along the line SS of FIG.
１ 容器 ２ 口部 ３ 金属製キャップ ３ａ 金属製キャップ天面 ４ 雄ねじ部 ５ 雌ねじ部 ６ ナール部 ６ａ 幅の短いスリット ７ ナール部 ７ａ 幅の長いスリット ８ カール部 ９ パッキン １０ 間隙 １１ 新たなスリット １６ｂ １６ｃ １６ｄ 幅の長いスリット Ｘ 幅の短いスリット寸法 Ｙ 幅の長いスリット寸法 1 container 2 mouths 3 metal caps 3a Metal cap top surface 4 Male thread 5 Female thread 6 nar part 6a Short slit 7 nar part 7a long slit 8 curl part 9 packing 10 gap 11 new slits 16b 16c 16d Long slits X width short slit size Y width slit dimension
Claims (3)
するために、外周面に複数のナール部を形成した金属製
キャップにおいて、金属製キャップの外周面に、複数の
幅の短いスリットを有するナール部と、少なくとも一個
以上の幅の長いスリットを有するナール部とを混在させ
て形成したことを特徴とする金属製キャップ。1. A metal cap having a plurality of knurls formed on an outer peripheral surface thereof for releasing the pressure of contents such as carbonated drinks to the outside. A plurality of slits having a short width are formed on the outer peripheral surface of the metal cap. And a knurled portion having at least one slit having a long width are mixed and formed.
るために、外周面に複数のナール部を形成した金属製キ
ャップにおいて、隣り合うナール部の間隙に、新たなス
リットを形成することにより、隣り合うナール部のスリ
ット同士が連通する幅の長いスリットを形成し、金属製
キャップの外周面に、該幅の長いスリットを少なくとも
１個以上形成したことを特徴とする金属製キャップ。2. A metal cap having a plurality of knurled portions formed on the outer peripheral surface thereof to release the pressure of contents such as carbonated drinks to the outside, and a new slit is formed in the gap between adjacent knurled portions. Thus, a slit having a long width is formed so that the slits of the adjacent knurl portions communicate with each other, and at least one slit having a long width is formed on the outer peripheral surface of the metal cap.
トを、ナール部の左端又は右端から、はみ出して延長し
て形成したことを特徴とする請求項１又は２記載の金属
製キャップ。3. The metal cap according to claim 1 or 2, wherein the slit having a short width or the slit having a long width is formed so as to extend and extend from a left end or a right end of the knurl portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002355004A JP3561901B2 (en) | 2002-06-14 | 2002-12-06 | Metal cap |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-173928 | 2002-06-14 | ||
| JP2002173928 | 2002-06-14 | ||
| JP2002355004A JP3561901B2 (en) | 2002-06-14 | 2002-12-06 | Metal cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003155052A true JP2003155052A (en) | 2003-05-27 |
| JP3561901B2 JP3561901B2 (en) | 2004-09-08 |
Family
ID=26625739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002355004A Expired - Fee Related JP3561901B2 (en) | 2002-06-14 | 2002-12-06 | Metal cap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3561901B2 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004063044A1 (en) * | 2003-01-14 | 2004-07-29 | Alcoa Closure Systems Japan, Limited | Cap, closing device, and beverage packed in container |
| JP2004359288A (en) * | 2003-06-04 | 2004-12-24 | Mitsubishi Materials Corp | Cap, and bottle can having cap |
| JP2006248532A (en) * | 2005-03-08 | 2006-09-21 | Universal Seikan Kk | Cap and bottle |
| JP2007045452A (en) * | 2005-08-09 | 2007-02-22 | Japan Crown Cork Co Ltd | Container lid made of metal having internal pressure releasability |
| JP2007055658A (en) * | 2005-08-25 | 2007-03-08 | Japan Crown Cork Co Ltd | Container lid having internal pressure releasing property |
| JP2007238119A (en) * | 2006-03-07 | 2007-09-20 | Japan Crown Cork Co Ltd | Metal container lid with inner pressure releasing characteristic |
| JP2008056323A (en) * | 2006-09-01 | 2008-03-13 | Daiwa Can Co Ltd | Metal cap |
| JP2008213938A (en) * | 2007-02-05 | 2008-09-18 | Universal Seikan Kk | Cap and bottle |
| US8167161B2 (en) | 2005-08-09 | 2012-05-01 | Japan Crown Cork Co., Ltd. | Metallic container closure having internal pressure release function |
| JP2013203430A (en) * | 2012-03-28 | 2013-10-07 | Universal Seikan Kk | Cap and container with cap |
| JP2015081116A (en) * | 2013-10-22 | 2015-04-27 | ユニバーサル製缶株式会社 | Cap |
| JP2016011138A (en) * | 2014-06-30 | 2016-01-21 | ユニバーサル製缶株式会社 | Cap with liner and container with cap |
| JP2016155602A (en) * | 2015-02-23 | 2016-09-01 | ユニバーサル製缶株式会社 | Cap with liner and container with cap |
| JP2020033066A (en) * | 2018-08-31 | 2020-03-05 | ユニバーサル製缶株式会社 | Bottle can with cap and its hermetically sealing method |
-
2002
- 2002-12-06 JP JP2002355004A patent/JP3561901B2/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004063044A1 (en) * | 2003-01-14 | 2004-07-29 | Alcoa Closure Systems Japan, Limited | Cap, closing device, and beverage packed in container |
| JP4522669B2 (en) * | 2003-06-04 | 2010-08-11 | ユニバーサル製缶株式会社 | Caps and bottles with caps |
| JP2004359288A (en) * | 2003-06-04 | 2004-12-24 | Mitsubishi Materials Corp | Cap, and bottle can having cap |
| JP2006248532A (en) * | 2005-03-08 | 2006-09-21 | Universal Seikan Kk | Cap and bottle |
| US8833590B2 (en) | 2005-08-09 | 2014-09-16 | Japan Crown Cork Co., Ltd. | Metallic container closure having internal pressure release function |
| JP2007045452A (en) * | 2005-08-09 | 2007-02-22 | Japan Crown Cork Co Ltd | Container lid made of metal having internal pressure releasability |
| US8167161B2 (en) | 2005-08-09 | 2012-05-01 | Japan Crown Cork Co., Ltd. | Metallic container closure having internal pressure release function |
| JP2007055658A (en) * | 2005-08-25 | 2007-03-08 | Japan Crown Cork Co Ltd | Container lid having internal pressure releasing property |
| JP4708122B2 (en) * | 2005-08-25 | 2011-06-22 | 日本クラウンコルク株式会社 | Container lid with internal pressure release characteristics |
| JP2007238119A (en) * | 2006-03-07 | 2007-09-20 | Japan Crown Cork Co Ltd | Metal container lid with inner pressure releasing characteristic |
| JP2008056323A (en) * | 2006-09-01 | 2008-03-13 | Daiwa Can Co Ltd | Metal cap |
| JP2008213938A (en) * | 2007-02-05 | 2008-09-18 | Universal Seikan Kk | Cap and bottle |
| JP2013203430A (en) * | 2012-03-28 | 2013-10-07 | Universal Seikan Kk | Cap and container with cap |
| JP2015081116A (en) * | 2013-10-22 | 2015-04-27 | ユニバーサル製缶株式会社 | Cap |
| JP2016011138A (en) * | 2014-06-30 | 2016-01-21 | ユニバーサル製缶株式会社 | Cap with liner and container with cap |
| JP2016155602A (en) * | 2015-02-23 | 2016-09-01 | ユニバーサル製缶株式会社 | Cap with liner and container with cap |
| JP2020033066A (en) * | 2018-08-31 | 2020-03-05 | ユニバーサル製缶株式会社 | Bottle can with cap and its hermetically sealing method |
| JP7082929B2 (en) | 2018-08-31 | 2022-06-09 | ユニバーサル製缶株式会社 | Bottle can with cap and its sealing method |
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| JP3561901B2 (en) | 2004-09-08 |
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