JP2003104347A - Waisted container made of synthetic resin - Google Patents
Waisted container made of synthetic resinInfo
- Publication number
- JP2003104347A JP2003104347A JP2001295405A JP2001295405A JP2003104347A JP 2003104347 A JP2003104347 A JP 2003104347A JP 2001295405 A JP2001295405 A JP 2001295405A JP 2001295405 A JP2001295405 A JP 2001295405A JP 2003104347 A JP2003104347 A JP 2003104347A
- Authority
- JP
- Japan
- Prior art keywords
- container
- waist
- synthetic resin
- annular groove
- section
- 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.)
- Pending
Links
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、容器の胴体を補強
するウエストを備えた合成樹脂製容器に関し、該容器の
薄肉化に伴う剛性劣化を効果的に回避しようとするもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin container having a waist that reinforces the body of the container, and it is an object of the present invention to effectively avoid deterioration of rigidity due to thinning of the container.
【０００２】[0002]
【従来の技術】ペットボトルに代表されるような合成樹
脂製の容器は、軽量で取り扱いが容易であること、ま
た、透明性を確保できガラス製の容器に比較して遜色の
ない外観を呈すること、しかも、コスト的にも安価であ
ることから、近年、食品や飲料、化粧料あるいは薬剤等
を充填する容器として多用されている。2. Description of the Related Art Containers made of synthetic resin, such as PET bottles, are lightweight and easy to handle, and can ensure transparency and have an appearance comparable to that of glass containers. In addition, because of its low cost, it has been widely used in recent years as a container for filling foods, beverages, cosmetics, medicines and the like.
【０００３】ところで、合成樹脂製の容器は、外力に対
する強度が小さく、例えば容器の胴部を把持して内容物
を注出する場合に把持部分において変形するのが避けら
れない。By the way, a container made of synthetic resin has a small strength against external force, and it is unavoidable that the container is deformed at the gripped portion when the body of the container is gripped and the contents are poured out.
【０００４】通常、この種の容器では、容器の外力に対
する抵抗（座屈強度、剛性等）を改善するため、容器の
肉厚を適宜に変更するとともに、胴部に縦リブ、横リブ
あるいはウエスト（胴部を周回する溝）を形成すること
によって対処している。Usually, in this type of container, in order to improve resistance (buckling strength, rigidity, etc.) of the container to external forces, the wall thickness of the container is appropriately changed, and vertical ribs, lateral ribs or waist are formed on the body. This is dealt with by forming a (groove that surrounds the body).
【０００５】しかしながら、近年では資源の有効利用、
ごみの削減を図る観点から、容器一個当たりに使用され
る樹脂量の削減すべく、容器の薄肉化（軽量化）が求め
られる傾向にあり、その要望に対処するためには、容器
の剛性低下が避けられない状況にある。However, in recent years, effective use of resources,
From the viewpoint of reducing waste, there is a tendency for thinner (lighter) containers to be used in order to reduce the amount of resin used per container. Is inevitable.
【０００６】とくに多角形断面になるウエスト付きの容
器では、容器全体の薄肉化に伴い、ウエスト部分の角部
で対角方向に外力が加わった場合に容器の断面形状が菱
形状に変形しやすい傾向にある。Particularly, in a container with a waist having a polygonal cross section, the cross-sectional shape of the container is apt to be deformed into a rhombus when an external force is applied diagonally in the corner portion of the waist portion as the thickness of the entire container is reduced. There is a tendency.
【０００７】[0007]
【発明が解決しようとする課題】本発明の課題は、ウエ
スト付き合成樹脂製容器について、薄肉化を図った場合
においても外観形状に変形をきたすことのない、座屈強
度、剛性の高い容器構造を提案するところにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a container structure with high buckling strength and rigidity that does not deform the outer shape of a synthetic resin container with a waist even when the wall thickness is reduced. Is in the place of proposing.
【０００８】[0008]
【課題を解決するための手段】本発明は、容器の胴体を
少なくとも上下二段に区分するウエストを備えた合成樹
脂製容器であって、前記ウエストが、胴体の回りを取り
囲み容器の内側に向かって凸となる環状溝からなり、該
環状溝に、環状溝の溝底よりも高いが胴体の表面よりも
低いレベルを有する補強リブを備えることを特徴とする
ウエスト付き合成樹脂製容器である。DISCLOSURE OF THE INVENTION The present invention is a synthetic resin container having a waist that divides the body of the container into at least two upper and lower stages, and the waist surrounds the body and faces the inside of the container. A container made of synthetic resin with a waist, comprising a convex annular groove, and a reinforcing rib having a level higher than the groove bottom of the annular groove but lower than the surface of the body in the annular groove.
【０００９】容器の胴体は多角形断面を有するものが好
適であり、補強リブは多角形断面の各角部を超える範囲
に配置されるものが望ましく、また、補強リブはその先
端に円弧を有するものが望ましい。The body of the container preferably has a polygonal cross section, the reinforcing ribs are preferably arranged in a range exceeding each corner of the polygonal cross section, and the reinforcing rib has an arc at its tip. Things are desirable.
【００１０】[0010]
【発明の実施の形態】以下、図面を用いて本発明をより
具体的に説明する。図１は充填容量が２．０リットルに
なる略四角形の断面形状を有する本発明に従うウエスト
付き合成樹脂製容器の側面を示したものであり、図２
（ａ）〜（ｉ）は図１の平面、底面、Ａ−Ａ断面〜Ｇ−
Ｇ断面をそれぞれ示した図である。図において１は容器
の胴体を上下二段に区分するウエストである。このウエ
スト１は胴体の回りを取り囲み容器の内側に向かって凸
となる環状溝１ａからなっている。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described more specifically with reference to the drawings. 1 is a side view of a synthetic resin container with a waist according to the present invention having a substantially rectangular cross-sectional shape with a filling capacity of 2.0 liters, and FIG.
(A)-(i) are the plane of FIG. 1, a bottom face, AA cross section-G-
It is the figure which showed each G cross section. In the figure, reference numeral 1 is a waist that divides the body of the container into upper and lower stages. The waist 1 includes an annular groove 1a that surrounds the body and is convex toward the inside of the container.
【００１１】また、２は環状溝１ａの溝底よりも高いが
胴体の表面よも低いレベルを有し、その先端に円弧が形
成された補強リブであり、この補強リブ２は、この例で
は、容器の胴体の四隅に設けた例で示してある。Reference numeral 2 is a reinforcing rib having a level higher than the groove bottom of the annular groove 1a but lower than the surface of the body and having an arc formed at the tip thereof. The example is provided at four corners of the body of the container.
【００１２】容器の胴体を単に凹まして上下二段に区分
するウエストは、もともと容器の剛性を改善する目的で
設けられるものであるが、薄肉化された容器は、その部
位の強度が低くなるため、容器の上部あるいは底部から
荷重が加えられた場合に座屈しやすく、また、ウエスト
部分を把持した場合に簡単に凹んでしまうことにもな
る。The waist which simply dents the body of the container and divides it into two stages, upper and lower, is originally provided for the purpose of improving the rigidity of the container, but a thinned container has a lower strength at that portion. However, when a load is applied from the top or bottom of the container, it is likely to buckle, and when the waist portion is gripped, it is easily recessed.
【００１３】図３は上掲図１に示した補強リブ２の正面
を示した図である。かかる補強リブ２をウエスト１に設
けること該リブ２が容器の骨格として機能することとな
り、容器の胴体を把持した時の変形は極めて小さくな
り、しかも容器の座屈強度についても著しく改善され
る。FIG. 3 is a front view of the reinforcing rib 2 shown in FIG. By providing the reinforcing ribs 2 on the waist 1, the ribs 2 function as the skeleton of the container, the deformation when the body of the container is gripped is extremely small, and the buckling strength of the container is significantly improved.
【００１４】補強リブ２は応力集中を回避するとともに
容器の外観形状の安定化のため単一の円弧で形成するの
がよい。また、補強リブ２は、その機能を有効に発揮さ
せるため、その先端を、図４に要部を拡大して示すごと
く、容器の胴体の表面レベルＬよりも低く、環状溝１ａ
の溝底レベルＬ１よりも高いレベルＬ２を有するものと
する。さらに、補強リブ２の円周方向（胴周り）におけ
る幅は、その端部が容器の角部を超えて、容器壁面に位
置するウエスト部まで及ぶものとするのがよい。The reinforcing ribs 2 are preferably formed with a single arc in order to avoid stress concentration and to stabilize the outer shape of the container. Further, the reinforcing rib 2 has its tip lower than the surface level L of the body of the container and the annular groove 1a in order to effectively exert its function, as shown in an enlarged view of the main part in FIG.
It has a level L 2 higher than the groove bottom level L 1 . Further, the width of the reinforcing rib 2 in the circumferential direction (around the body) is preferably such that the end portion thereof extends beyond the corner portion of the container and reaches the waist portion located on the wall surface of the container.
【００１５】本発明では、四角形断面を有する容器を対
象にして補強リブ２を設ける場合について説明したが、
これは図示した断面形状のものに限るものではなく長方
形、五角形、六角形等の多角形断面は勿論、円形断面を
有する容器にも適用できるものであり、図示したものに
限定されることはない。また、容器の充填容量に関して
も、例示の２．０リットルの他、５００ミリリットル以
下、１．０リットル、１．５リットルあるいは２．０リ
ットルを超える大型の容器にも適用可能であり、充填容
量についても限定はされない。In the present invention, the case where the reinforcing rib 2 is provided for a container having a rectangular cross section has been described.
This is not limited to the illustrated cross-sectional shape, but can be applied to a container having a circular cross-section as well as a polygonal cross-section such as a rectangle, a pentagon, and a hexagon, and is not limited to the illustrated one. . Also, regarding the filling capacity of the container, in addition to the exemplified 2.0 liter, it is applicable to a large container of 500 ml or less, 1.0 liter, 1.5 liter or more than 2.0 liter. There is no limitation regarding.
【００１６】容器を構成する樹脂はポリエチエンテレフ
タレート樹脂等の熱可塑性合成樹脂を使用することがで
き、押出し成形あるいは射出成形によって得られたプリ
フォームをブロー成形することによって製造することが
できる。The resin constituting the container may be a thermoplastic synthetic resin such as polyethylene terephthalate resin, and can be produced by blow molding a preform obtained by extrusion molding or injection molding.
【００１７】ブロー成形によって成形された容器は、常
温充填、高温充填の何れの用途にも使用でき、とくに、
内容物として高温の液体を充填する容器を対象とする場
合には、１回の二軸延伸ブロー成形で容器を完成させる
通常の成形法が適用されるほか、加熱処理を挟む少なく
とも二回の二軸延伸ブロー成形によって耐熱性の改善さ
れた容器を完成させる成形法も適用することが可能であ
り、何れの容器も、胴体にウエストを備える場合には、
該ウエストに補強リブ２を設けることにより強度の改善
を図ることが可能になる。The container molded by blow molding can be used for both normal temperature filling and high temperature filling.
In the case of targeting a container filled with a high-temperature liquid as the content, a usual molding method for completing the container by one biaxial stretch blow molding is applied, and at least two molding processes including a heat treatment are performed. It is also possible to apply a molding method for completing a container having improved heat resistance by axial stretch blow molding, and in any container, if the body has a waist,
By providing the reinforcing ribs 2 on the waist, the strength can be improved.
【００１８】[0018]
【発明の効果】本発明によれば、容器の薄肉化を図った
場合であってもウエスト部分を把持したときの変形がな
くなり、また、容器の座屈強度や剛性が著しく高められ
る。According to the present invention, even when the container is made thin, there is no deformation when the waist portion is gripped, and the buckling strength and rigidity of the container are significantly enhanced.
【図１】 本発明に従うウエスト付き容器の側面を示し
た図である。FIG. 1 shows a side view of a waisted container according to the present invention.
【図２】 ａ〜ｉは図１に示した容器の平面図、底面
図、Ａ−Ａ断面〜Ｇ−Ｇ断面を示した図である。2A to 2I are a plan view, a bottom view, and an AA cross section to a GG cross section of the container shown in FIG.
【図３】 補強リブの正面を示した図である。FIG. 3 is a view showing a front surface of a reinforcing rib.
【図４】 図１に示した容器の要部を拡大して示した図
である。FIG. 4 is an enlarged view showing a main part of the container shown in FIG.
１ ウエスト １ｂ 環状溝 ２ 補強リブ 1 waist 1b annular groove 2 Reinforcement rib
フロントページの続き (72)発明者 斉藤 浩通 東京都江東区大島３丁目２番６号 株式会 社吉野工業所内 Ｆターム(参考） 3E033 AA01 BA18 CA02 DA03 DA08 DB01 DD01 EA05 EA06 FA02 FA03 Continued front page (72) Inventor Hiromichi Saito Stock exchange, 3-2-6 Oshima, Koto-ku, Tokyo Inside the company Yoshino Industry F-term (reference) 3E033 AA01 BA18 CA02 DA03 DA08 DB01 DD01 EA05 EA06 FA02 FA03
Claims (3)
するウエストを備えた合成樹脂製容器であって、 前記ウエストが、胴体の回りを取り囲んで容器の内側に
向かって凸となる環状溝からなり、 該環状溝に、環状溝の溝底よりも高いが胴体の表面より
も低いレベルを有する補強リブを備えることを特徴とす
るウエスト付き合成樹脂製容器。1. A synthetic resin container having a waist that divides the body of the container into at least two upper and lower stages, wherein the waist surrounds the body and is convex toward the inside of the container from an annular groove. A container made of synthetic resin with a waist, wherein the annular groove is provided with a reinforcing rib having a level higher than the groove bottom of the annular groove but lower than the surface of the body.
あり、補強リブは多角形断面の各角部を超える範囲に配
置されたものである、請求項１記載のウエスト付き合成
樹脂製容器。2. The waisted synthetic resin container according to claim 1, wherein the body of the container has a polygonal cross section, and the reinforcing ribs are arranged in a range exceeding each corner of the polygonal cross section. .
のである、請求項１又は２記載のウエスト付き合成樹脂
製容器。3. The synthetic resin container with a waist according to claim 1, wherein the reinforcing rib has an arc at its tip.
Priority Applications (17)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001295405A JP2003104347A (en) | 2001-09-27 | 2001-09-27 | Waisted container made of synthetic resin |
| AU2002332323A AU2002332323B2 (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container with shape retainability |
| CNB2005101276715A CN100569594C (en) | 2001-09-27 | 2002-09-26 | The synthetic resin container of improved shape stability |
| TW091122102A TWI232192B (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container |
| CNB028188373A CN1260099C (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container with shape retainability |
| EP02768092A EP1431192B1 (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container with shape retainability |
| DE60225730T DE60225730T2 (en) | 2001-09-27 | 2002-09-26 | Plastic container with improved dimensional stability |
| PCT/JP2002/009976 WO2003029087A1 (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container with shape retainability |
| EP05009262A EP1561692B1 (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container having improved shape stability |
| KR1020067019445A KR100730334B1 (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container with shape retainability |
| US10/490,258 US7552833B2 (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container having improved shape stability |
| DE60228980T DE60228980D1 (en) | 2001-09-27 | 2002-09-26 | ART RESIN CONTAINER WITH FORM STRENGTH |
| DE60226081T DE60226081T2 (en) | 2001-09-27 | 2002-09-26 | Plastic container with improved dimensional stability |
| KR1020047004473A KR100706850B1 (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container with shape retainability |
| EP05009263A EP1574439B1 (en) | 2001-09-27 | 2002-09-26 | Synthetic resin container having improved shape stability |
| AU2006252313A AU2006252313B2 (en) | 2001-09-27 | 2006-12-28 | Synthetic resin container having improved shape stability |
| AU2006252314A AU2006252314B2 (en) | 2001-09-27 | 2006-12-28 | Synthetic resin container having improved shape stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001295405A JP2003104347A (en) | 2001-09-27 | 2001-09-27 | Waisted container made of synthetic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003104347A true JP2003104347A (en) | 2003-04-09 |
Family
ID=19116847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001295405A Pending JP2003104347A (en) | 2001-09-27 | 2001-09-27 | Waisted container made of synthetic resin |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003104347A (en) |
| CN (1) | CN100569594C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7014056B2 (en) * | 2003-09-25 | 2006-03-21 | Graham Packaging Company, L.P. | 4-sided container with smooth front and back panels that can receive labels in a variety of ways |
| WO2007004398A1 (en) * | 2005-06-30 | 2007-01-11 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle body |
| JP2007039040A (en) * | 2005-07-29 | 2007-02-15 | Yoshino Kogyosho Co Ltd | Synthetic resin-made bottle |
| WO2008001585A1 (en) * | 2006-06-30 | 2008-01-03 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle |
| US7568588B2 (en) * | 2005-08-16 | 2009-08-04 | Graham Packaging Company, L.P. | Container with contour |
| JP2010006427A (en) * | 2008-06-27 | 2010-01-14 | Hokkai Can Co Ltd | Synthetic resin bottle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275688A (en) * | 2016-09-22 | 2017-01-04 | 上海普丽盛包装股份有限公司 | A kind of packing container and blank thereof |
-
2001
- 2001-09-27 JP JP2001295405A patent/JP2003104347A/en active Pending
-
2002
- 2002-09-26 CN CNB2005101276715A patent/CN100569594C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7014056B2 (en) * | 2003-09-25 | 2006-03-21 | Graham Packaging Company, L.P. | 4-sided container with smooth front and back panels that can receive labels in a variety of ways |
| WO2007004398A1 (en) * | 2005-06-30 | 2007-01-11 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle body |
| JP2007008547A (en) * | 2005-06-30 | 2007-01-18 | Yoshino Kogyosho Co Ltd | Synthetic resin bottle |
| US8727154B2 (en) | 2005-06-30 | 2014-05-20 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle |
| AU2006267001B2 (en) * | 2005-06-30 | 2011-11-17 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle body |
| JP4697631B2 (en) * | 2005-07-29 | 2011-06-08 | 株式会社吉野工業所 | Plastic bottle |
| JP2007039040A (en) * | 2005-07-29 | 2007-02-15 | Yoshino Kogyosho Co Ltd | Synthetic resin-made bottle |
| US7568588B2 (en) * | 2005-08-16 | 2009-08-04 | Graham Packaging Company, L.P. | Container with contour |
| AU2007264597B2 (en) * | 2006-06-30 | 2011-04-28 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle |
| JP2008013180A (en) * | 2006-06-30 | 2008-01-24 | Yoshino Kogyosho Co Ltd | Bottle made of synthetic resin |
| WO2008001585A1 (en) * | 2006-06-30 | 2008-01-03 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle |
| US8104632B2 (en) | 2006-06-30 | 2012-01-31 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle having a constricted portion with intermittent lateral grooves |
| JP2010006427A (en) * | 2008-06-27 | 2010-01-14 | Hokkai Can Co Ltd | Synthetic resin bottle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1781812A (en) | 2006-06-07 |
| CN100569594C (en) | 2009-12-16 |
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