JPS6219569Y2 - - Google Patents
Info
- Publication number
- JPS6219569Y2 JPS6219569Y2 JP1983162584U JP16258483U JPS6219569Y2 JP S6219569 Y2 JPS6219569 Y2 JP S6219569Y2 JP 1983162584 U JP1983162584 U JP 1983162584U JP 16258483 U JP16258483 U JP 16258483U JP S6219569 Y2 JPS6219569 Y2 JP S6219569Y2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- partition plate
- top plate
- lower edge
- metal top
- 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
Links
- 238000005192 partition Methods 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 15
- 229920003002 synthetic resin Polymers 0.000 claims description 12
- 239000000057 synthetic resin Substances 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000035699 permeability Effects 0.000 description 4
- 238000007872 degassing Methods 0.000 description 3
- 238000004826 seaming Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Closures For Containers (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、缶の気密性の向上及び缶内への光
線の透過を防止すると共に、缶内のガス置換の際
の蓋の変形を防止することを目的とした気密缶に
関するものである。[Detailed description of the invention] (Industrial application field) This invention improves the airtightness of the can, prevents light from passing into the can, and prevents the lid from deforming when gas is replaced inside the can. This relates to airtight cans intended for
（従来の技術）
出願人は先に、缶口部への嵌装溝を有する合成
樹脂リングの内壁下縁に金属頂板の縁部を巻曲固
定して蓋を構成し、前記巻曲部の下側を缶の中仕
切板の周縁に当接させた押えリング下縁上側に当
接させた気密缶を提案し（実願昭58−112844
号）、缶の気密性の向上及び缶内への光線の透過
防止の効果を得た。(Prior Art) The applicant first constructed a lid by winding and fixing the edge of a metal top plate to the lower edge of the inner wall of a synthetic resin ring having a groove for fitting into the mouth of the can. He proposed an airtight can with a presser ring whose lower side was in contact with the periphery of the inner partition plate of the can, and whose lower edge was in contact with the upper side of the lower edge (Utility Application No. 58-112844
(No.), improved the airtightness of the can and prevented light from penetrating into the can.
（考案により解決すべき問題点）
しかし、缶内を脱気してガス置換する場合に
は、蓋と中仕切板との間の封鎖部が脱気に際して
は通気性を保持するものの送気の際は通気性がな
く密封状態のためガスの送気状態においても蓋と
中仕切板との間の減圧状態が維持され、缶外と、
蓋と中仕切り板間との圧力差により蓋の平面部が
変形するという問題点があつた。(Problem to be solved with new ideas) However, when deaerating the inside of the can to replace gas, the sealing part between the lid and the partition plate maintains air permeability during deaeration, but the air supply is limited. Since there is no air permeability and the airtight state is sealed, a reduced pressure state between the lid and the partition plate is maintained even when gas is being supplied, and the outside of the can and
There was a problem in that the flat part of the lid was deformed due to the pressure difference between the lid and the partition plate.
すなわち、脱気時には蓋と中仕切板との間の気
圧は缶内および置換室内の気圧よりも高くなるの
で、中仕切板は缶内側へ、また缶蓋に缶外側へ
夫々引張されて変形する。その結果、缶蓋の缶口
との嵌合部にゆがみが生じると共に、蓋の金属頂
板の巻曲部と中仕切板の押えリングとの当接部は
離反側へ付勢されるので、該部の気密性が失わ
れ、蓋と中仕切板との間から脱気される。 In other words, during deaeration, the air pressure between the lid and the partition plate becomes higher than the air pressure inside the can and in the exchange chamber, so the partition plate is pulled and deformed by the can inside the can, and by the can lid and the outside of the can. . As a result, the fitting part of the can lid with the can opening is distorted, and the contact part between the winding part of the metal top plate of the lid and the presser ring of the partition plate is biased toward the separation side. The airtightness of the area is lost and air is released from between the lid and the partition plate.
これに対し、置換ガス送入時には蓋と中仕切板
との間の気圧は缶内および置換室内の気圧よりも
低くなるので、中仕切板および缶蓋は互いに対向
方向へ変形する。その結果、蓋の金属頂板の周縁
部と中仕切板の押えリングとの当接部は対向方向
へ付勢され、該部の気密性は向上するので、中仕
切板と蓋との間に換気ガスが侵入することはでき
ず、蓋の変形は避けられないこととなる。 On the other hand, when the replacement gas is introduced, the air pressure between the lid and the partition plate becomes lower than the air pressure inside the can and the replacement chamber, so the partition plate and the can lid deform in opposite directions. As a result, the contact area between the periphery of the metal top plate of the lid and the presser ring of the inner partition plate is biased in the opposite direction, and the airtightness of this area is improved, allowing ventilation between the inner partition plate and the lid. Gas cannot enter and deformation of the lid is inevitable.
（問題点を解決する為の手段）
この考案の気密缶は、中仕切板を張設した缶本
体の口部に蓋を密嵌した缶において、前記蓋は缶
口部への嵌装溝を有する合成樹脂リングの嵌装溝
内壁下縁に金属頂板の縁部を巻曲固定して構成す
ると共に、前記嵌装溝の内壁下端の前記巻曲部
を、押えリングの下縁上側に当接させてある。そ
して、前記押えリングは、一側を缶口部へ固定
し、他側を前記中仕切板の周縁側へ延長させてあ
ると共に前記金属頂板の巻曲部下側と押えリング
の下縁上側との当接部に通気間隙が設けてある。(Means for Solving the Problems) The airtight can of this invention has a lid tightly fitted to the mouth of a can body with a partition plate, and the lid has a fitting groove in the can mouth. The edge of the metal top plate is wound and fixed to the lower edge of the inner wall of the fitting groove of the synthetic resin ring, and the bent portion of the lower end of the inner wall of the fitting groove is brought into contact with the upper side of the lower edge of the retaining ring. I've let it happen. The presser ring has one side fixed to the can opening and the other side extended toward the peripheral edge of the partition plate, and the lower side of the winding of the metal top plate and the upper side of the lower edge of the presser ring. A ventilation gap is provided at the abutting portion.
尚、以下の実施例では通気間隙として金属頂板
の周壁下縁に凹部を設けたが、この形状に限定さ
れるものではなく、金属頂板の下縁に凸部を設け
たもの、押えリングの下縁上側に凹部又は凸部を
設けたもの、金属頂板の下縁及び押えリングの下
縁上側の両方に凹部又は凸部を設けたものであつ
てもよく、要は当接部へ通気性があればよい。 In the following examples, a recess was provided at the lower edge of the peripheral wall of the metal top plate as a ventilation gap, but the shape is not limited to this. A concave or convex portion may be provided on the upper side of the edge, or a concave or convex portion may be provided on both the lower edge of the metal top plate and the upper side of the lower edge of the presser ring.The key is to provide ventilation to the contact area. Good to have.
（作用）
この考案において、蓋の金属頂板は、缶内への
光線の透過を防止する作用を奏し、合成樹脂リン
グと缶口との密嵌によつて気密性が図られる。ま
た、金属頂板の巻曲部下側と押えリング上側との
当接部に設けた通気間隙により、脱気時、送気時
のいずれにおいても前記当接部の通気が可能とな
り、蓋の変形は防止される。(Function) In this invention, the metal top plate of the lid functions to prevent light from passing into the can, and the tight fit between the synthetic resin ring and the can mouth provides airtightness. In addition, the ventilation gap provided at the contact area between the lower side of the winding of the metal top plate and the upper side of the presser ring allows ventilation of the contact area during both degassing and air supply, preventing deformation of the lid. Prevented.
尚、ガス置換時は蓋の変形により、樹脂リング
と缶口の密嵌部に通気性が生じるが、通常時は気
密であるから、通常時における缶の気密性に問題
が生じることはない。 During gas replacement, the deformation of the lid causes air permeability in the tightly fitted portion between the resin ring and the mouth of the can, but since it is normally airtight, there is no problem with the airtightness of the can during normal times.
（実施例）
以下この考案を図面に示す実施例に基づいて説
明する。(Example) This invention will be described below based on an example shown in the drawings.
缶本体１の口部に合成樹脂製の中仕切板２が張
設してあると共に、該中仕切板２の周縁上面には
前記中仕切板２を緊張させるための押えリング３
が当接しており、前記缶本体１の口部（缶胴５の
端部）には蓋４の嵌装溝６が密嵌してある。前記
蓋４は帽状に形成した金属頂板９の周壁下縁を、
缶胴５の端部への嵌装溝６を有する透明合成樹脂
リング７の嵌装溝内壁８の下縁に巻曲固着し、該
巻曲部１０の下側には４箇所に凹部１１を等間隔
に設け、該巻曲部１０の下端は前記押えリング３
の下縁上側に当接している。 A synthetic resin partition plate 2 is stretched over the mouth of the can body 1, and a presser ring 3 is provided on the upper surface of the periphery of the partition plate 2 to tension the partition plate 2.
The fitting groove 6 of the lid 4 is tightly fitted into the mouth of the can body 1 (the end of the can body 5). The lid 4 has a cap-shaped metal top plate 9 with a lower edge of the peripheral wall,
A transparent synthetic resin ring 7 having a fitting groove 6 is fixed to the end of the can body 5 by winding it to the lower edge of the fitting groove inner wall 8, and recesses 11 are formed at four locations on the lower side of the winding part 10. The lower end of the winding portion 10 is provided at equal intervals, and the lower end of the winding portion 10 is
It is in contact with the upper side of the lower edge of.
前記押えリング３の周縁は、前記中仕切板２の
周縁と共に前記缶胴５の端部へ巻締固定してあ
り、また前記合成樹脂リング７の外壁１３の内側
は前記巻曲部１０の外側に弾接していると共に、
下端の肉厚な掛止部１２は前記巻締部１４の下端
に掛止している。 The periphery of the presser ring 3 is fixed to the end of the can body 5 by winding together with the periphery of the partition plate 2, and the inside of the outer wall 13 of the synthetic resin ring 7 is the outside of the winding part 10. At the same time as being in ballistic contact with
A thick hooking portion 12 at the lower end is hooked to the lower end of the seaming portion 14.
上記実施例によれば、蓋の合成樹脂リング７の
嵌装溝６が缶胴５の巻締部１４へ密嵌しているの
で、該部において所定の気密性を得ることができ
る。また合成樹脂リング７を透明又は半透明とし
た場合においても、光線が缶内へ透過するおそれ
がなく、内容物の変質を未然に防止することがで
きる。 According to the embodiment described above, since the fitting groove 6 of the synthetic resin ring 7 of the lid tightly fits into the seaming part 14 of the can body 5, a predetermined airtightness can be obtained in this part. Furthermore, even when the synthetic resin ring 7 is made transparent or translucent, there is no risk of light rays passing into the can, and deterioration of the contents can be prevented.
又金属頂板９の巻曲部１０に設けた凹部１１に
より、缶内をガス置換する場合の強制的な脱気や
送気には通気性を有し、内外圧が等しくなるので
蓋４の変形は防止することとができる。 In addition, the recess 11 provided in the winding part 10 of the metal top plate 9 provides ventilation for forced degassing and air supply when replacing gas inside the can, and since the internal and external pressures are equalized, the deformation of the lid 4 is prevented. can be prevented.
すなわち、通常状態においては、合成樹脂リン
グ７の嵌合溝６と缶胴巻締部１４の密嵌により、
凹部１１の存在に抱らず、十分な気密性が得られ
る。一方ガス置換時には蓋が変形するので嵌合溝
６の缶胴への嵌装状態にゆがみが生じ、該部の気
密性が失われ通気性が生じる。このために、凹部
１１に加えて蓋と缶胴との間に通気間隙が生じる
ので、蓋４と中仕切板２との間においても、脱
気、送気が行われることとなり、蓋４の変形は防
止できる。 That is, in the normal state, due to the tight fit between the fitting groove 6 of the synthetic resin ring 7 and the can body seaming part 14,
Sufficient airtightness can be obtained regardless of the presence of the recess 11. On the other hand, since the lid is deformed during gas replacement, the fitting state of the fitting groove 6 to the can body is distorted, and the airtightness of the part is lost and air permeability occurs. For this reason, in addition to the recess 11, a ventilation gap is created between the lid and the can body, so degassing and air supply are also performed between the lid 4 and the partition plate 2, and the lid 4 Deformation can be prevented.
（考案の効果）
この考案によれば、蓋に金属頂板を組み込んだ
ので、光の透過を防止することができる。また、
蓋の合成樹脂リングに缶口部への嵌装溝を設け、
密嵌させたので、通気間隙の存在に抱らず、通常
状態においては十分な気密性を得ることができ
る。更に金属頂板の巻曲部下側と押えリング下縁
との当接部に通気間隙を設けたので、ガス置換の
際には、蓋の嵌装溝部分の気密性が失われること
と相まつて、蓋と中仕切板間の空間と外部とをガ
スが出入可能となる。そのために、ガス置換の
際、缶内外圧を等しくし、蓋の変形を防止するこ
とができる。(Effects of the invention) According to this invention, since the metal top plate is incorporated into the lid, transmission of light can be prevented. Also,
The synthetic resin ring on the lid has a groove that fits into the can opening.
Since they are tightly fitted, sufficient airtightness can be obtained under normal conditions without the presence of ventilation gaps. Furthermore, since a ventilation gap was provided at the contact area between the lower side of the winding of the metal top plate and the lower edge of the presser ring, when replacing the gas, the airtightness of the fitting groove part of the lid would be lost. Gas can enter and exit the space between the lid and the partition plate and the outside. Therefore, during gas replacement, the internal and external pressures of the can can be equalized and deformation of the lid can be prevented.
第１図はその考案の一部を断面した正面図、第
２図は同じく蓋の一部を断面した正面図、第３図
は同じく平面図である。
１……缶本体、２……中仕切板、３……押えリ
ング、４……蓋、５……缶胴、６……嵌装溝、７
……合成樹脂リング、９……金属頂板、１０……
巻曲部、１１……凹部。
FIG. 1 is a partially sectional front view of the device, FIG. 2 is a partially sectional front view of the lid, and FIG. 3 is a plan view. 1... Can body, 2... Inner partition plate, 3... Holding ring, 4... Lid, 5... Can body, 6... Fitting groove, 7
...Synthetic resin ring, 9...Metal top plate, 10...
Winding part, 11... recessed part.
Claims (1)
した缶において、前記蓋は缶口部への嵌装溝を
有する合成樹脂リングの嵌装溝内壁下縁に金属
頂板の縁部を巻曲固定して構成すると共に、前
記嵌装溝の内壁下端の前記巻曲部を、押えリン
グの下縁上側に当接させ、前記押えリングは一
側を缶口部へ固定し、他側を前記中仕切板の周
縁側へ延長させてあると共に、前記金属頂板の
巻曲部下側と前記押えリングの下縁上側との当
接部に通気間隙が設けてあることを特徴とする
気密缶。 ２ 通気間隙は金属頂板の巻曲部下側と押えリン
グの下縁上側の両方または何れか一方に凹部又
は凸部を設けたことを特徴とする気密缶。[Scope of Claim for Utility Model Registration] 1. A can in which a lid is tightly fitted to the mouth of a can body with a partition plate, the lid having a groove for fitting a synthetic resin ring into the mouth of the can. The edge of the metal top plate is wound and fixed to the lower edge of the inner wall, and the bent portion at the lower end of the inner wall of the fitting groove is brought into contact with the upper side of the lower edge of a presser ring, and the presser ring is attached to one side. is fixed to the can opening, and the other side is extended toward the peripheral edge of the partition plate, and a ventilation gap is provided at the abutting portion between the lower side of the winding of the metal top plate and the upper side of the lower edge of the presser ring. An airtight can characterized by: 2. An airtight can characterized in that the ventilation gap is provided with a recess or a projection on either or both of the lower side of the winding of the metal top plate and the upper side of the lower edge of the presser ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16258483U JPS6070540U (en) | 1983-10-20 | 1983-10-20 | airtight can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16258483U JPS6070540U (en) | 1983-10-20 | 1983-10-20 | airtight can |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6070540U JPS6070540U (en) | 1985-05-18 |
| JPS6219569Y2 true JPS6219569Y2 (en) | 1987-05-19 |
Family
ID=30356983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16258483U Granted JPS6070540U (en) | 1983-10-20 | 1983-10-20 | airtight can |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6070540U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4725268U (en) * | 1971-04-02 | 1972-11-21 |
-
1983
- 1983-10-20 JP JP16258483U patent/JPS6070540U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4725268U (en) * | 1971-04-02 | 1972-11-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6070540U (en) | 1985-05-18 |
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