JPH0339368Y2 - - Google Patents
Info
- Publication number
- JPH0339368Y2 JPH0339368Y2 JP1984193492U JP19349284U JPH0339368Y2 JP H0339368 Y2 JPH0339368 Y2 JP H0339368Y2 JP 1984193492 U JP1984193492 U JP 1984193492U JP 19349284 U JP19349284 U JP 19349284U JP H0339368 Y2 JPH0339368 Y2 JP H0339368Y2
- Authority
- JP
- Japan
- Prior art keywords
- container
- synthetic resin
- pressure
- exterior material
- resin film
- 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
- 239000000463 material Substances 0.000 claims description 43
- 229920003002 synthetic resin Polymers 0.000 claims description 35
- 239000000057 synthetic resin Substances 0.000 claims description 35
- 239000007789 gas Substances 0.000 claims description 20
- 230000004888 barrier function Effects 0.000 claims description 19
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 6
- 229910001882 dioxygen Inorganic materials 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 description 13
- -1 polypropylene Polymers 0.000 description 11
- 229920001155 polypropylene Polymers 0.000 description 11
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 5
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000005033 polyvinylidene chloride Substances 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 235000014171 carbonated beverage Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920005606 polypropylene copolymer Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 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
- 235000013405 beer Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は耐圧性、ガス遮断性に優れ、主として
ビール、コーラ等の炭酸飲料の密封包装用として
好適な耐圧容器に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a pressure-resistant container that has excellent pressure resistance and gas barrier properties and is suitable primarily for hermetically sealed packaging of carbonated beverages such as beer and cola.
従来、炭酸飲料用の容器としては金属罐、ガラ
ス瓶が主として用いられていたが、近年耐腐食
性、耐衝撃性、透明性を有し且つ軽量であること
からポリエステル樹脂の２軸延伸ブロー成形容器
が用いられている。
Conventionally, metal cans and glass bottles were mainly used as containers for carbonated beverages, but in recent years biaxial stretch blow-molded containers made of polyester resin have been used because they are corrosion resistant, impact resistant, transparent, and lightweight. is used.
しかしながら、この合成樹脂製容器は、高い内
圧に耐える強度と圧力ガスの透過を防止するガス
遮断性とを共に得るためには、容器全体が比較的
大きな肉圧を必要とし、このため軽量の利点が半
減するとともに、樹脂の使用量の増大に伴う経済
性の不利は避けられず、また保存中に内部の圧力
によつて容器の弱い部分が部分的に変形する等の
不具合があつた。
However, in order to obtain both the strength to withstand high internal pressure and the gas barrier properties to prevent the permeation of pressurized gas, this synthetic resin container requires a relatively large wall pressure for the entire container, which has the advantage of being lightweight. As the amount of resin used decreased by half, economical disadvantages were unavoidable due to an increase in the amount of resin used, and there were also problems such as weak parts of the container becoming partially deformed due to internal pressure during storage.
本考案者は上記の点に鑑み鋭意研究した結果、
容器主部の胴部外周面に少なくとも耐圧層を有す
る合成樹脂フイルムより形成した同部外装材を補
助プラグを用いた深絞りシート成形法により固着
し、且つ胴部外装材を形成する樹脂フイルムおよ
び／または容器主部を形成する合成樹脂シートと
してガス遮断性を有するものを用い、金属蓋と容
器開口端部を巻締し、更に容器の肉厚を胴部厚
さ：d1と底部厚さ：d2との間にd2／d1≧ぺ３なる
関係に形成した容器が、耐圧性、ガス遮断性を低
下することなく軽量化を図ることができることを
見出し本考案を完成するに至つた。
As a result of intensive research in view of the above points, the inventor of this invention found that
An exterior material formed from a synthetic resin film having at least a pressure-resistant layer is fixed to the outer peripheral surface of the body of the main part of the container by a deep drawing sheet molding method using an auxiliary plug, and the resin film forming the body exterior material; / Or use a synthetic resin sheet that has gas barrier properties to form the main part of the container, seam the metal lid and the opening end of the container, and further adjust the wall thickness of the container to the body thickness: d 1 and the bottom thickness. : d 2 with the relationship d 2 /d 1 ≧P3, it was discovered that the weight of the container could be reduced without reducing the pressure resistance and gas barrier properties, leading to the completion of this invention. Ivy.
本考案の耐圧容器は、胴部と底部とを一体に形
成した合成樹脂製の容器主部と、該容器主部の胴
部外周面に固着した合成樹脂フイルムよりなる胴
部外装材とを有し、該容器主部と胴部外装材の固
着は上記合成樹脂フイルムを金型内に装填した後
に上記合成樹脂シートを補助プラグを用いた深絞
りシート成形法にて成形して相互を密着させ胴部
厚さ：d1と底部厚さ：d2との間にd2／d1≧３なる
関係に形成し、この胴部外装材を形成する樹脂フ
イルムが少なくとも引張強度500Kg／cm2以上の２
軸延伸合成樹脂フイルムよりなる耐圧層を有する
とともに胴部外装材を形成する樹脂フイルムおよ
び／または容器主部を形成する合成樹脂シートが
ガス遮断性を有してなる耐圧容器であつて、前記
胴部の端部開口より突出したフランジ部と、この
端部開口を閉塞するための金属蓋とを共に巻締め
し、この巻締めした部分が、前記フランジ部の直
近位置まで伸延した胴部外装材の端部に密着した
状態で前記胴部の全周にわたり覆つてなるように
構成したものである。 The pressure container of the present invention has a container main part made of synthetic resin, in which a body and a bottom are integrally formed, and a body exterior material made of a synthetic resin film fixed to the outer peripheral surface of the body of the main container part. However, the main part of the container and the exterior material of the body are fixed by loading the synthetic resin film into a mold and then molding the synthetic resin sheet by deep drawing sheet molding using an auxiliary plug to make them adhere to each other. The body thickness: d 1 and the bottom thickness: d 2 are formed so that d 2 /d 1 ≧3, and the resin film forming the body exterior material has a tensile strength of at least 500 Kg/cm 2 or more. 2
The pressure container has a pressure-resistant layer made of an axially oriented synthetic resin film, and the resin film forming the exterior material of the body and/or the synthetic resin sheet forming the main part of the container has gas barrier properties. A body exterior covering material in which a flange protruding from an end opening of the body and a metal lid for closing the end opening are tightened together, and the tightened portion extends to a position immediately adjacent to the flange. It is configured to cover the entire circumference of the body while being in close contact with the end of the body.
以下、本考案の実施例を図面に基づき説明す
る。
Hereinafter, embodiments of the present invention will be described based on the drawings.
第１図に示す耐圧容器１は合成樹脂シートは図
示の如く深絞り状に成形して、胴部２と底部３と
を一体に形成した容器主部４と、該容器主部４の
胴部２の外周面に固着された胴部外装材５とから
構成されている。この胴部外装材５は第２図に示
すように、耐圧層７、ガス遮断層８を有し、更に
必要により耐圧層７、ガス遮断層８及び容器主部
４を構成する樹脂との接着性を有する樹脂よるな
る合成樹脂層９を設けた積層フイルムよりなつて
いる。 The pressure-resistant container 1 shown in FIG. 1 includes a container main part 4 in which a synthetic resin sheet is formed into a deep drawing shape as shown in the figure, and a body part 2 and a bottom part 3 are integrally formed, and a body part of the container main part 4. 2, and a trunk exterior material 5 fixed to the outer circumferential surface of the body. As shown in FIG. 2, this body exterior material 5 has a pressure-resistant layer 7 and a gas barrier layer 8, and is further bonded to the pressure-resistant layer 7, gas barrier layer 8, and resin constituting the container main portion 4, if necessary. It is made of a laminated film provided with a synthetic resin layer 9 made of a resin having properties.
この耐圧容器１は胴部に胴部外装材５が設けら
れているため胴部の肉厚を薄くしても十分な耐圧
性を有するが、胴部外装材５の設けられていない
容器主部４の底部３の耐圧性を向上させるため
に、底部３の肉圧を厚くする必要があり、容器１
の胴部の肉圧：d1に対し底部の肉厚：d2がd2／d1
≧３となるように容器主部４を形成する。 This pressure-resistant container 1 has sufficient pressure resistance even if the wall thickness of the body is made thin because the body is provided with a body exterior material 5, but the main part of the container where the body exterior material 5 is not provided. In order to improve the pressure resistance of the bottom part 3 of the container 1, it is necessary to increase the wall pressure of the bottom part 3.
Body pressure: d 1 , bottom wall thickness: d 2 is d 2 / d 1
The container main portion 4 is formed so that ≧3.
前記耐圧層７は引張強度500Kg／cm2以上の２軸
延伸合成樹脂フイルムよりなり、該フイルムの材
質としては、ポリプロピレン、ポリエステル、セ
ロフアン、ナイロン等が挙げられる。またその耐
圧層７は伸びの少ないものが望ましい。ガス遮断
層８は例えばポリ塩化ピニリデン、エチレン−ビ
ニルアルコール共重合体のフイルムあるいはアル
ミニウム箔等の如く厚さ30μｍあたりの酸素ガス
透過率が20c.c.／m2・24hrs・atm以下のもので構
成することが好ましい。また合成樹脂層９は例え
ば容器主部４と同一の樹脂であるポリプロピレ
ン、ポリエステル、ナイロン、ポリスチレン等
や、容器主部４と熱接着性を有するエチレン−酢
酸ビニル共重合体、エチレンとアクリル酸やその
エステルとの共重合体、ポリエチレン、ポリプロ
ピレン等のオレフイン系樹脂の一部にカルボニル
基を有しているもの等により構成することができ
る。耐圧層７、ガス遮断層８及び合成樹脂層９は
熱圧着あるいは適宜の接着剤により積層される。
尚、胴部外装材５を形成する樹脂フイルムには適
宜印刷を施すこともできる。 The pressure layer 7 is made of a biaxially stretched synthetic resin film having a tensile strength of 500 Kg/cm 2 or more, and examples of the material of the film include polypropylene, polyester, cellophane, and nylon. Further, it is desirable that the pressure-resistant layer 7 has little elongation. The gas barrier layer 8 is made of a material having an oxygen gas permeability of 20 c.c./m 2.24 hrs.atm or less per 30 μm thickness, such as polypinylidene chloride, ethylene-vinyl alcohol copolymer film, or aluminum foil. It is preferable to configure. The synthetic resin layer 9 is made of, for example, the same resin as the container main part 4 such as polypropylene, polyester, nylon, polystyrene, etc., ethylene-vinyl acetate copolymer having thermal adhesive properties with the container main part 4, ethylene and acrylic acid, etc. It can be composed of a copolymer with the ester thereof, or an olefin resin such as polyethylene or polypropylene having a carbonyl group in a part thereof. The pressure-resistant layer 7, the gas barrier layer 8, and the synthetic resin layer 9 are laminated by thermocompression bonding or a suitable adhesive.
Incidentally, the resin film forming the trunk exterior material 5 may be appropriately printed.
容器主部４を構成する合成樹脂シートはポリプ
ロピレン、ポリエステル、ナイロン、ポリスチレ
ン等の通常のシート形成に用いられる樹脂よりな
るものが用いられるが、厚さ30μｍ当たり酸素ガ
ス透過率が20c.c.／m2・24hrs・atm以下であるエ
チレン−ビニルアルコール共重合体、ポリ塩化ビ
ニリデン等のシートあるいはポリプロピレン／エ
チレン−ビニルアルコール共重合体／ポリプロピ
レン積層シート、ポリプロピレン／ポリ塩化ビニ
リデン／ポリプロピレン積層シート、ハイインパ
クトポリスチレン／ポリ塩化ビニリデン／ハイイ
ンパクトポリスチレン積層シート等の如くエチレ
ン−ビニルアルコール共重合体やポリ塩化ビニリ
デン等のガス遮断性樹脂層を設けた積層シートを
用いることが好ましい。尚、容器主部４を形成す
る合成樹脂シートとして酸素ガス遮断性を有する
ものを用いた場合は、胴部外装材５には必ずしも
ガス遮断層８を有する積層フイルムを用いなくと
もよいが、両者ともにガス遮断性を有するものを
用いてもよい。また容器主部４を形成する合成樹
脂シートがガス遮断性を有する場合には容器主部
４の底部３の、より薄肉化を図ることができる。 The synthetic resin sheet constituting the main part 4 of the container is made of a resin commonly used for forming sheets, such as polypropylene, polyester, nylon, or polystyrene, and has an oxygen gas permeability of 20 c.c./30 μm in thickness. Sheet of ethylene-vinyl alcohol copolymer, polyvinylidene chloride, etc., or polypropylene/ethylene-vinyl alcohol copolymer/polypropylene laminate sheet, polypropylene/polyvinylidene chloride/polypropylene laminate sheet, high impact with m2・24hrs・atm or less It is preferable to use a laminate sheet provided with a gas barrier resin layer of ethylene-vinyl alcohol copolymer or polyvinylidene chloride, such as a polystyrene/polyvinylidene chloride/high impact polystyrene laminate sheet. Note that if a synthetic resin sheet having oxygen gas barrier properties is used as the synthetic resin sheet forming the main part 4 of the container, the laminated film having the gas barrier layer 8 does not necessarily need to be used for the body exterior material 5; Both may have gas barrier properties. Further, when the synthetic resin sheet forming the container main portion 4 has gas barrier properties, the bottom portion 3 of the container main portion 4 can be made thinner.
特に、本実施例の耐圧容器１では、第３図に示
すように前記胴部２の端部開口２ａより突出した
フランジ部６と、この端部開口２ａを閉塞するた
めの金属蓋１０とをともに巻締めし、この金属蓋
１０より容器１を密封するようにしている。 In particular, the pressure container 1 of this embodiment has a flange 6 projecting from the end opening 2a of the body 2 and a metal lid 10 for closing the end opening 2a, as shown in FIG. The metal lid 10 seals the container 1 by tightening the metal lid 10.
しかもこの巻締密封を行うに当たり、前記胴部
外装材５の上端部５ａが前記フランジ部６の直近
位置まで伸延し、しかもこの巻締めした部分Ｍが
この胴部外装材５の上端部５ａに密着した状態
で、かつ胴部外装材５の全周にわたつて覆うよう
にする必要がある。 Moreover, in performing this seaming and sealing, the upper end 5a of the body exterior material 5 is extended to the position closest to the flange 6, and this seamed portion M is attached to the upper end 5a of the body exterior material 5. It is necessary to cover the entire circumference of the trunk exterior material 5 in a tight state.
もし、第４図に示すようにこの上端部５ａと巻
締めした部分Ｍの最外層最下端部Maとの間に胴
部外装材５が存在しない部分があれば、この胴部
２の一部に耐圧性の弱い部分が生じ、同図中に破
線で示すように胴部２の一部が膨出する虞れが生
じる。 If, as shown in FIG. 4, there is a part where the trunk exterior material 5 does not exist between this upper end 5a and the lowermost end Ma of the outermost layer of the seamed part M, then this part of the trunk 2 There is a possibility that a portion with weak pressure resistance will occur in the body 2, and a portion of the body 2 may bulge out as shown by the broken line in the figure.
したがつて、前述のように胴部外装材５の上端
部５ａが巻締めした部分Ｍの最外層最下端部Ma
より下方にあり、この上端部５ａを全周にわたり
巻締めした部分Ｍが覆えば、耐圧性のない部分に
よつて封入した炭酸飲料等のガス圧を受け膨出す
る虞れはない。 Therefore, as described above, the outermost layer lowermost end Ma of the portion M where the upper end 5a of the trunk exterior material 5 is seamed is
If the upper end portion 5a is covered by the portion M which is located further down and is wrapped around the entire circumference, there is no possibility that the non-pressure resistant portion will bulge due to the gas pressure of the enclosed carbonated beverage or the like.
しかもこの巻締めした部分Ｍはこの巻締めによ
り多数の層が集中し、耐圧性が高くなるので、こ
れにより胴部外装材５の上端部５ａを覆えば、金
属蓋１０の近傍での耐圧強度はさらに向上するこ
とになる。 Moreover, this tightened portion M has a large number of layers concentrated due to this tightening, and its pressure resistance increases. Therefore, if the upper end 5a of the trunk exterior material 5 is covered with this, the pressure resistance near the metal lid 10 increases. will further improve.
かかる耐圧容器１を製作するには、まず合成樹
脂フイルムの両端縁部を接着、融着等により固着
して第５図に示す如く、例えば円筒状に形成した
胴部外装材５を第６図に示すように金型１１内に
挿入した後、容器主部４を形成する合成樹脂シー
ト４ａを加熱軟化せしめて第７図に示すように合
成樹脂シート４ａを補助プラグ１２により押圧す
るとともに排気口１３より金型１１内の空気を吸
引し、且つ空気供給口１４より圧搾空気を供給し
て合成樹脂シート４ａを金型１１内壁に押しつけ
ることにより容器主部４を成形し、更に圧搾空気
を供給して容器主部４と胴部外装材５とを密着さ
せて両者を固着させる。 In order to manufacture such a pressure-resistant container 1, first, both end edges of a synthetic resin film are fixed by gluing, fusing, etc. to form, for example, a cylindrical body exterior material 5 as shown in FIG. 5. After inserting into the mold 11 as shown in FIG. 7, the synthetic resin sheet 4a forming the container main part 4 is heated and softened, and as shown in FIG. The main part 4 of the container is formed by suctioning the air in the mold 11 through the air supply port 13 and supplying compressed air through the air supply port 14 to press the synthetic resin sheet 4a against the inner wall of the mold 11, and then supplying compressed air. Then, the container main part 4 and the body exterior material 5 are brought into close contact and fixed together.
次に、所定半径のフランジ部６となるようにこ
の合成樹脂シート４ａを切断した後に、金属蓋１
０をこのフランジ部６上に置き、このフランジ部
６と金属蓋１０とを一緒に巻締めれば、この金属
蓋１０とともにフランジ部６も変形し、巻締め密
封した耐圧容器が完成する。 Next, after cutting this synthetic resin sheet 4a to form a flange portion 6 with a predetermined radius, the metal lid 1
0 is placed on this flange portion 6, and this flange portion 6 and metal lid 10 are rolled together, the flange portion 6 is deformed together with this metal lid 10, and a pressure-resistant container that is rolled and sealed is completed.
次に具体的実施例を挙げて本考案を更に詳細に
説明する。 Next, the present invention will be explained in more detail with reference to specific examples.
実施例 １
無延伸ポリプロピレン（20μ厚）／２延伸軸ポ
リエステル（25μ厚）／無延伸ポリプロピレン
（60μ厚）からなる積層フイルムから形成した円
筒状の胴部外装材を金型に装填した後、カルボニ
ル基を有する変性ポリプロピレンを接着材として
積層したポリプロピレン／エチレン−ビニルアル
コール共重合体／ポリプロピレンよりなる1.4mm
厚の積層シートをプラグアシスト圧空成形法によ
り容器の底部厚さが胴部厚さの５倍となるように
成形して容器主部を形成し、容器主部の胴部厚さ
0.25mm、内径50mm、容量250mlの容器を得た。Example 1 After loading a cylindrical body exterior material formed from a laminated film consisting of unstretched polypropylene (20 μ thick)/2 stretched polyester (25 μ thick)/unstretched polypropylene (60 μ thick) into a mold, carbonyl 1.4 mm made of polypropylene/ethylene-vinyl alcohol copolymer/polypropylene laminated with modified polypropylene having groups as an adhesive.
The main part of the container is formed by molding a thick laminated sheet using the plug-assisted pressure forming method so that the bottom thickness of the container is five times the thickness of the body part, and the thickness of the body part of the main part of the container is
A container with a diameter of 0.25 mm, an inner diameter of 50 mm, and a capacity of 250 ml was obtained.
この容器の開口部２ａに鉄に錫メツキを行つた
板からなる金属蓋１０を巻締めするとき、第４図
に示すもののように胴部外装材５の上端部５ａ
と、巻締めした部分Ｍの最外層最下端部Maとの
間に５mmの離間距離を有する容器Ａと、この外装
材５の上端部５ａを巻締めした部分Ｍで全周にわ
たり覆つた容器Ｂとを作つた。 When tightening the metal lid 10 made of a plate of tin-plated iron to the opening 2a of this container, the upper end 5a of the body exterior material 5 as shown in FIG.
and the outermost layer bottom end Ma of the seamed part M, and a container B having a distance of 5 mm between the top end 5a of the exterior material 5 and the seamed part M over the entire circumference. I made this.
このＢ容器に圧縮空気を圧入したところ圧力10
Kg／cm2においてもその形状変化はほとんどみられ
ず、14Kg／m2で胴部２、底部３の一部に膨張した
部分を生じた。 When compressed air was injected into this B container, the pressure was 10.
Even at Kg/cm 2 , almost no change in shape was observed, and at 14 Kg/m 2 , some expanded portions were formed in the body 2 and bottom 3 .
また、このＢ容器に炭酸水を封入したところ、
20℃で3.5Kg／cm2の内圧を示したが、それを30℃
で３カ月間放置した後においても内圧の変化はほ
とんど認められなかつた。 Also, when I filled this B container with carbonated water,
It showed an internal pressure of 3.5Kg/ cm2 at 20℃;
Almost no change in internal pressure was observed even after being left for three months.
これに対し、Ａ容器では圧力４Kg／cm2を加えた
時点でMaと５ａとの間で膨張がはじまつた。 On the other hand, in container A, expansion started between Ma and 5a when a pressure of 4 kg/cm 2 was applied.
以上説明したように本考案の耐圧容器は、胴部
と底部とを一体に形成した合成樹脂製の容器主部
と、該容器主部の胴部外周面に固着した合成樹脂
フイルムよりなる胴部外装材とを有し、外容器主
部と胴部外装材の固着は補助プラグを用いた深絞
りシート成形法にて成形してなることにより、胴
部外装材が容器主部に対して全面均一に強固に接
着されており、その結果、外装材による優れた耐
圧性付与効果が十二分に発揮される。しかも容器
の成形と同時に外装材との固着がなされるため製
造工程が簡略化されて製造コストの低減化、ひい
ては製品の低廉化を図ることができる。
As explained above, the pressure-resistant container of the present invention has a container main part made of synthetic resin in which a body and a bottom are integrally formed, and a body made of a synthetic resin film fixed to the outer peripheral surface of the body of the main container part. The main part of the outer container and the body exterior material are fixed together using a deep drawing sheet molding method using an auxiliary plug, so that the body exterior material is completely attached to the main part of the container. It is bonded uniformly and firmly, and as a result, the excellent pressure resistance imparting effect of the exterior material is fully exhibited. Moreover, since the container is fixed to the exterior material at the same time as the container is formed, the manufacturing process is simplified, and manufacturing costs can be reduced, resulting in lower product prices.
さらに容器の肉厚を胴部厚さ：d1と底部厚さ：
d2との間にd2／d1≧３なる関係に形成したことに
より、外装材を設けない底部の耐圧性を向上さ
せ、容器の内圧によつて容器底部が膨らんで変形
する虞れがなく、容器の内径に対して高さを形成
した場合に安定性の良好な容器を形成することが
できる。 Furthermore, the wall thickness of the container is determined by the body thickness: d 1 and the bottom thickness:
By forming the relationship d 2 /d 1 ≧3 with d 2, the pressure resistance of the bottom without an exterior material is improved, and there is no risk that the bottom of the container will swell and deform due to the internal pressure of the container. However, if the height is formed relative to the inner diameter of the container, a container with good stability can be formed.
また、容器胴部の端部開口に設けたフランジ部
と金属蓋とを共に巻締めしてなり、この巻締めし
た部分が前記フランジ部の直近位置まで伸延した
胴部外装材の端部に密着した状態で前記胴部全周
にわたり覆つたため、金属蓋直近付近での耐圧性
を向上させることができる。 In addition, the flange provided at the end opening of the container body and the metal lid are rolled together, and the rolled part is tightly attached to the end of the body exterior material that extends to the nearest position of the flange. Since the entire circumference of the body is covered in this state, the pressure resistance in the immediate vicinity of the metal lid can be improved.
さらに本考案耐圧容器は、上記の外装材の使
用、底部の肉厚化及び端部開口の金属蓋との巻締
の３つの組み合わせにより、容器全体の耐圧性が
良好で容器の変形の虞れも少なく、内圧のかかる
内容物等の密封包装用に最適に使用することがで
きる。 Furthermore, the pressure-resistant container of the present invention has good pressure resistance of the entire container due to the three combinations of using the above-mentioned exterior material, thickening the bottom wall, and sealing the end opening with the metal lid. It can be optimally used for sealed packaging of contents subject to internal pressure.
さらに、この胴部外装材を形成する樹脂フイル
ムが少なくとも引張強度500Kg／cm2以上の２軸延
伸合成樹脂フイルムよりなる耐圧層を有するとと
もに胴部外装材を形成する樹脂フイルムおよび／
または容器主部を形成する合成樹脂シートがガス
遮断性を有してなるため、従来の容器に比して1/
２量程度の少ない量の樹脂を用いて製造した場合
でも優れた耐圧性、ガス遮断性を得ることができ
る等の種々の効果を有する。 Furthermore, the resin film forming the trunk exterior material has a pressure-resistant layer made of a biaxially stretched synthetic resin film having a tensile strength of at least 500 kg/cm 2 or more, and the resin film forming the trunk exterior material and/or
Or, since the synthetic resin sheet that forms the main part of the container has gas barrier properties, it is 1/2 that of conventional containers.
It has various effects such as being able to obtain excellent pressure resistance and gas barrier properties even when manufactured using a small amount of resin, such as about 2.
図面は本考案の一実施例を示すもので、第１図
は本考案耐圧容器の縦断面図、第２図は第１図の
Ａ部拡大図、第３図は巻締めした部分の拡大断面
図、第４図は胴部外装材が取付け不良の耐圧容器
の要部を示す断面図、第５図は胴部外装材の斜視
図、第６図、第７図はそれぞれ本考案容器の製造
工程を示す縦断面図である。
１……耐圧容器、２……胴部、２ａ……開口
部、３……底部、４……容器主部、５……胴部外
装材、１０……金属蓋、１２……補助プラグ、Ｍ
……巻締めした部分。
The drawings show one embodiment of the present invention. Figure 1 is a longitudinal cross-sectional view of the pressure-resistant container of the present invention, Figure 2 is an enlarged view of part A in Figure 1, and Figure 3 is an enlarged cross-section of the seamed part. Figure 4 is a sectional view showing the main parts of a pressure-resistant container with a poorly attached body exterior material, Figure 5 is a perspective view of the body exterior material, and Figures 6 and 7 are manufacturing of the container of the present invention, respectively. It is a longitudinal cross-sectional view showing a process. DESCRIPTION OF SYMBOLS 1... Pressure-resistant container, 2... Body part, 2a... Opening part, 3... Bottom part, 4... Main part of the container, 5... Body exterior material, 10... Metal lid, 12... Auxiliary plug, M
...The part that was tightened.
Claims (1)
容器主部と、該容器主部の胴部外周面に固着し
た合成樹脂フイルムよりなる胴部外装材とを有
し、該容器主部と胴部外装材の固着は上記合成
樹脂フイルムを金型内に装填した後に上記合成
樹脂シートを補助プラグを用いた深絞りシート
成形法にて成形して相互を密着させ胴部厚さ：
d1と底部厚さ：d2との間にd2／d1≧３なる関係
に形成し、この胴部外装材を形成する樹脂フイ
ルムが少なくとも引張強度500Kg／cm2以上の２
軸延伸合成樹脂フイルムよりなる耐圧層を有す
るとともに胴部外装材を形成する樹脂フイルム
および／または容器主部を形成する合成樹脂シ
ートがガス遮断性を有してなる耐圧容器であつ
て、前記胴部の端部開口より突出したフランジ
部と、この端部開口を閉塞するための金属蓋と
を共に巻締めし、この巻締めした部分が、前記
フランジ部の直近位置まで伸延した胴部外装材
の端部に密着した状態で前記胴部の全周にわた
り覆つてなる耐圧容器。 (2) 胴部外装材を形成する合成樹脂フイルムが、
厚さ30μ当たりの酸素ガス透過率が20c.c.／m2・
24hrs・atm以下のガス遮断層を有する実用新
案登録請求の範囲第１項に記載の耐圧容器。 (3) 容器主部を形成する合成樹脂シートが、厚さ
30μ当たりの酸素ガス透過率が20c.c.／m2・
24hrs・atm以下の樹脂よりなる実用新案登録
請求の範囲第１項〜第２項のいずれかに記載の
耐圧容器。 (4) 容器主部を形成する合成樹脂シートが、厚さ
30μ当たりの酸素ガス透過率が20c.c.／m2・
24hrs・atm以下のガス遮断層を有する積層シ
ートよりなる実用新案登録請求の範囲第１項〜
第３項のいずれかに記載の耐圧容器。[Scope of Claim for Utility Model Registration] (1) A main container body made of synthetic resin with a body and a bottom integrally formed, and a body exterior made of a synthetic resin film fixed to the outer circumferential surface of the body of the main container body. The main part of the container and the exterior material of the body are fixed by loading the synthetic resin film into a mold and then molding the synthetic resin sheet by deep drawing sheet molding using an auxiliary plug. Body thickness:
The resin film forming the body exterior material has a tensile strength of at least 500 Kg / cm 2 or more.
The pressure container has a pressure-resistant layer made of an axially oriented synthetic resin film, and the resin film forming the exterior material of the body and/or the synthetic resin sheet forming the main part of the container has gas barrier properties, A body exterior covering material in which a flange protruding from an end opening of the body and a metal lid for closing the end opening are tightened together, and the tightened portion extends to a position immediately adjacent to the flange. A pressure-resistant container that covers the entire circumference of the body while being in close contact with the end of the body. (2) The synthetic resin film that forms the body exterior material is
Oxygen gas permeability per 30μ thickness is 20c.c./m2 .
A pressure-resistant container according to claim 1, which has a gas barrier layer of 24 hours/atm or less. (3) The synthetic resin sheet forming the main part of the container has a thickness of
Oxygen gas permeability per 30μ is 20c.c./m2・
A pressure-resistant container according to any one of claims 1 to 2, which is made of a resin having a resistance of 24 hours/atm or less. (4) The synthetic resin sheet forming the main part of the container has a thickness of
Oxygen gas permeability per 30μ is 20c.c./m2・
Utility model registration claims consisting of a laminated sheet having a gas barrier layer of 24 hours/atm or less, Paragraph 1 ~
The pressure container according to any of paragraph 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984193492U JPH0339368Y2 (en) | 1984-12-20 | 1984-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984193492U JPH0339368Y2 (en) | 1984-12-20 | 1984-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61107727U JPS61107727U (en) | 1986-07-08 |
| JPH0339368Y2 true JPH0339368Y2 (en) | 1991-08-20 |
Family
ID=30750916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984193492U Expired JPH0339368Y2 (en) | 1984-12-20 | 1984-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339368Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008535680A (en) * | 2005-01-13 | 2008-09-04 | ネス インベンションズ， インコーポレイテッド | Mason reblock assembly with mason reblock and molded utility openings |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62135154A (en) * | 1985-12-03 | 1987-06-18 | 東洋製罐株式会社 | Multilayer plastic vessel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58121827A (en) * | 1982-01-14 | 1983-07-20 | Nec Corp | Pulse generating circuit |
| JPS5951051A (en) * | 1982-09-20 | 1984-03-24 | 東洋インキ製造株式会社 | Molded vessel made of polyethylene terephthalate |
| JPS5962452A (en) * | 1982-09-22 | 1984-04-09 | 三菱重工業株式会社 | Plastic bottle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4868003U (en) * | 1971-12-07 | 1973-08-29 | ||
| JPS58121827U (en) * | 1982-02-12 | 1983-08-19 | 東洋製罐株式会社 | sealed plastic container assembly |
-
1984
- 1984-12-20 JP JP1984193492U patent/JPH0339368Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58121827A (en) * | 1982-01-14 | 1983-07-20 | Nec Corp | Pulse generating circuit |
| JPS5951051A (en) * | 1982-09-20 | 1984-03-24 | 東洋インキ製造株式会社 | Molded vessel made of polyethylene terephthalate |
| JPS5962452A (en) * | 1982-09-22 | 1984-04-09 | 三菱重工業株式会社 | Plastic bottle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008535680A (en) * | 2005-01-13 | 2008-09-04 | ネス インベンションズ， インコーポレイテッド | Mason reblock assembly with mason reblock and molded utility openings |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61107727U (en) | 1986-07-08 |
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