JPH0720010Y2 - Blow molding container - Google Patents
Blow molding containerInfo
- Publication number
- JPH0720010Y2 JPH0720010Y2 JP1988023951U JP2395188U JPH0720010Y2 JP H0720010 Y2 JPH0720010 Y2 JP H0720010Y2 JP 1988023951 U JP1988023951 U JP 1988023951U JP 2395188 U JP2395188 U JP 2395188U JP H0720010 Y2 JPH0720010 Y2 JP H0720010Y2
- Authority
- JP
- Japan
- Prior art keywords
- container
- mouth
- neck
- shoulder
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は容器の口部から胴部に至る部位を補強できるよ
うにしたブロー成型容器に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a blow-molded container capable of reinforcing the region from the mouth to the body of the container.
〔従来の技術〕 近年、清涼飲料水等の容器としては合成樹脂のものが一
般的になり、特に、所謂PET容器が広く用いられてい
る。[Prior Art] In recent years, a synthetic resin container has been generally used as a container for soft drinks, and in particular, a so-called PET container has been widely used.
このPET容器は容器を肉薄に形成することが比較的容易
であるが、そうすると容器の強度が低下するという問題
がある。そこで、従来は、容器の側面に補強リブを形成
する等の補強リブを形成する等の補強対策が採られてい
る。Although it is relatively easy to make the PET container thin, this PET container has a problem that the strength of the container is reduced. Therefore, conventionally, reinforcing measures such as forming reinforcing ribs on the side surface of the container have been adopted.
さらに、プラスチック容器の円筒形胴部に隣接して肩部
を設け、この肩部に続いて円筒形くびれ部を経て厚肉の
口部を設け、肩部を形成する推移点から前記円筒形くび
れ部までの距離が、容器の底から円筒形くびれ部までの
長さの0.5〜0.6の範囲であり、さらに肩の外方凸湾曲は
やや楕円形をしており、前記の円筒形胴部に隣接する部
分は無限大より小さい曲率半径を有し、推移点から円筒
形くびれ部に向かって順次減少し、円筒形胴部の外径の
0.25から２倍の値の曲率半径に変わるように肩部を構成
することによって、容器の肩部の強度を増し、プラスチ
ック容器の耐圧性を向上させたものがある（特公昭47−
33676号公報）。Further, a shoulder portion is provided adjacent to the cylindrical body portion of the plastic container, and a thick mouth portion is provided through the cylindrical neck portion following the shoulder portion, and the cylindrical neck portion is formed from the transition point forming the shoulder portion. The distance to the part is in the range of 0.5 to 0.6 of the length from the bottom of the container to the cylindrical constriction, and the outward convex curvature of the shoulder has a slightly elliptical shape. Adjacent parts have a radius of curvature smaller than infinity and decrease progressively from the transition point toward the cylindrical constriction,
By constructing the shoulder so as to change the radius of curvature from 0.25 to twice, there is one in which the strength of the shoulder of the container is increased and the pressure resistance of the plastic container is improved (Japanese Patent Publication No. 47-
33676 publication).
しかし、容器の長手方向での圧縮強度はリブを形成する
ことによって改善することは困難である。However, it is difficult to improve the compressive strength in the longitudinal direction of the container by forming ribs.
即ち、容器に縦方向の力が印加されると、容器の構造上
その肩部または底部に応力が集中し、これらの部分が座
屈することとなるが、特に、肩部は底部と異なり、目立
つ部分でもあることから、構造的な対策も限られる。That is, when a vertical force is applied to the container, stress concentrates on the shoulder or bottom of the container due to the structure of the container, and these parts buckle, but in particular, the shoulder is different from the bottom and stands out. Since it is also a part, structural measures are also limited.
さらに、前記の特公昭47−33676号公報に開示された考
案は、口部の強度を向上するために、前記したように肉
厚の口部を設けるので、材料費が嵩み、容器の重量増加
につながる。Further, in the invention disclosed in the above Japanese Patent Publication No. 47-33676, in order to improve the strength of the mouth, since the thick mouth is provided as described above, the material cost increases and the weight of the container increases. Leads to an increase.
さらに、上記のように肩部の構成が本願考案とは異なる
のでので、本願考案のような効果は期待できない。しか
も、肩部を形成する推移点から口頚部下端部の円筒形く
びれ部までの距離が容器のベースから円筒形くびれ部ま
での長さの0.5〜0.6の範囲でなければならないから、肩
部が前記の容器の長さの制約を受けることになり、肩部
が上記範囲を外れた場合には肩部周辺の強度を向上させ
ることはできない。Further, since the structure of the shoulder portion is different from that of the present invention as described above, the effect of the present invention cannot be expected. Moreover, since the distance from the transition point forming the shoulder to the cylindrical neck at the lower end of the mouth and neck must be within the range of 0.5 to 0.6 of the length from the base of the container to the cylindrical neck, the shoulder is When the shoulder is out of the above range, the strength around the shoulder cannot be improved because the length of the container is restricted.
本発明は前記事項に鑑みてなされたものであり、容器の
側面にリブを形成したり、口頚部や肩部を肉厚にするこ
ともなく、容器の肩部周辺の強度を向上させることがで
きるようにするとともに、容器の高さにも制約を受ける
ことのないブロー成型容器を提供することを技術的課題
とする。The present invention has been made in view of the above matters, it is possible to improve the strength around the shoulder portion of the container without forming ribs on the side surface of the container or thickening the mouth and neck or the shoulder portion. It is a technical object to provide a blow-molded container that can be made possible and is not restricted by the height of the container.
本考案は前記技術的課題を解決するために、以上のよう
な構成とした。The present invention has the above-described structure in order to solve the above technical problems.
即ち、容器１の胴部４から肩部５及び口頚部３を経て口
部２に至る部位を連続面で形成し、肩部５を所定の曲面
で形成する。That is, the region from the body portion 4 of the container 1 to the mouth portion 2 via the shoulder portion 5 and the mouth / neck portion 3 is formed as a continuous surface, and the shoulder portion 5 is formed as a predetermined curved surface.
そして、口頚部３を截頭円錐形に形成し、口頚部上端部
3aの直径をA,口頚部下端部3bの直径をＢ、胴部４の直径
をＣとしたとき、夫々の直径A,B,Cの比率を43〜49:48〜
55:100とする。Then, the mouth / neck portion 3 is formed into a truncated cone shape, and the upper end portion of the mouth / neck portion is formed.
When the diameter of 3a is A, the diameter of the lower neck 3b of the mouth is B, and the diameter of the body 4 is C, the ratio of the respective diameters A, B, C is 43 to 49:48 ~.
55: 100.
さらに、肩部５の中間点5cにおける接線角度θを平面に
対して50〜60度とした。そして、この肩部５の曲率半径
Ｒは、胴部４の直径Crに対して0.5Cr≦Ｒ≦Crの範囲で
設定することができる。Further, the tangent angle θ at the midpoint 5c of the shoulder portion 5 is set to 50 to 60 degrees with respect to the plane. The radius of curvature R of the shoulder portion 5 can be set within the range of 0.5Cr ≦ R ≦ Cr with respect to the diameter Cr of the body portion 4.
前記容器１はPET（ポリエチレンテレフタレート）製パ
リソンをブロー成型することにより製造することができ
る。The container 1 can be manufactured by blow molding a parison made of PET (polyethylene terephthalate).
前記した口頚部上端部3a、口頚部下端部3b、胴部４、の
夫々の直径Ａ、Ｂ、Ｃの比率、及び、肩部５の中間点5c
における接線角度θを前記所定値に設定することによっ
て、容器の縦方向の圧縮強度を第２図に示すような最適
値とすることができた。Ratio of the diameters A, B and C of the mouth / neck upper end 3a, the mouth / neck lower end 3b, and the body 4, respectively, and the midpoint 5c of the shoulder 5 as described above.
By setting the tangent angle θ in the above to the above-mentioned predetermined value, the compressive strength in the longitudinal direction of the container could be made the optimum value as shown in FIG.
本考案の実施例を第１図及び第２図に基づいて説明す
る。An embodiment of the present invention will be described with reference to FIGS. 1 and 2.
容器１はポリエチレンテレフタレート製のパリソンをブ
ロー成型により容器１の胴部４から肩部５及び口頚部３
を経て口部２に至る部位を連続面で瓶型に形成したもの
である。そしてこの胴部４の直径はＣとなっている。前
記肩部５は湾曲面で構成してあり、胴部４とは段差なく
接合している。The container 1 is formed by blow molding a parison made of polyethylene terephthalate from the body 4 to the shoulder 5 and the mouth / neck 3 of the container 1.
It is formed into a bottle shape with a continuous surface at the portion reaching to the mouth portion 2 through. The diameter of the body portion 4 is C. The shoulder portion 5 has a curved surface and is joined to the body portion 4 without a step.
前記口頚部３は口頚部上端部3aから口頚部下端部3bにか
けて徐々に太くなるよう截頭円錐形に形成されており、
口頚部上端部3aの直径はＡ、口頚部下端部3bの直径はＢ
に夫々形成されている。The mouth / neck portion 3 is formed into a truncated cone shape so that the mouth / neck portion 3 gradually increases in thickness from the mouth / neck upper end 3a to the mouth / neck lower end 3b.
The diameter of the upper neck 3a is A and the diameter of the lower neck 3b is B
Are formed respectively.
前記口頚部上端部3a、口頚部下端部3b、胴部４、の夫々
の直径Ａ、Ｂ、Ｃの比率は胴部４の直径を100とする
と、46:52:100となっている。The ratio of the diameters A, B and C of the mouth / neck upper end 3a, the mouth / neck lower end 3b, and the body 4 is 46: 52: 100, where 100 is the diameter of the body 4.
そして、肩部５の中間点5cにおける接線角度θを平面に
対して55度とした。なお、口部２の直径の比率は38（直
径は34ミリ）、胴部４の直径は89ミリであり、これらは
以下の各例においても同値である。Then, the tangent angle θ at the midpoint 5c of the shoulder 5 is set to 55 degrees with respect to the plane. The diameter ratio of the mouth portion 2 is 38 (diameter is 34 mm) and the diameter of the body portion 4 is 89 mm, which are the same in the following examples.
以上の条件で容器１を上下方向に圧縮したところ座屈直
前に第２図にＰで示す強度を示した。When the container 1 was vertically compressed under the above conditions, the strength indicated by P in FIG. 2 was shown immediately before buckling.
続いて、前記口頚部上端部3a、口頚部下端部3b、胴部
４、の夫々の直径Ａ、B,Cの比率を43:48:100としたとこ
ろ、同図Ｊに示す強度を示した。Subsequently, when the ratios of the diameters A, B, and C of the upper neck 3a, the lower neck 3b of the mouth, and the body 4 were set to 43: 48: 100, the strength shown in FIG. .
同様に、前記口頚部3a、口頚部3b、胴部４、の夫々の直
径Ａ、Ｂ、Ｃの比率を49:55:100としたところ、同図Ｋ
に示す強度を示した。Similarly, when the ratio of the diameters A, B, and C of the mouth / neck portion 3a, the mouth / neck portion 3b, and the body portion 4 is set to 49: 55: 100, FIG.
The strength shown in was shown.
最後に、前記口頚部上端部3a、口頚部下端部3b、胴部
４、の夫々の直径Ａ、Ｂ、Ｃの比率を53:58:100とした
ところ、同図Ｍに示す強度を示した。Finally, when the ratio of the diameters A, B and C of the upper neck 3a, the lower neck 3b of the mouth and the body 4 is set to 53: 58: 100, the strength shown in FIG. .
以上の結果から、口頚部上端部3a、口頚部下端部3b、胴
部４の、夫々の直径Ａ、Ｂ、Ｃの比率は第２図Ｐに示す
条件のときに最良となり、その前後でも相当な強度が得
られることが明らかとなった。From the above results, the ratio of the diameters A, B and C of the mouth / neck upper end 3a, the mouth / neck lower end 3b and the torso 4 is the best under the conditions shown in FIG. It has become clear that various strengths can be obtained.
容器１の胴部４から肩部５及び口頚部３を経て口部２に
至る部位を連続面で形成するとともに、截頭円錐形の口
頚部を具え、口頚部上端部3a、口頚部下端部3b、胴部
４、の夫々の直径Ａ、B,Cの比率を43〜49:48〜55:100と
し、肩部５の中間点5cにおける接続角度θを容器の中心
線に直交する平面に対して50〜60度に設定したので、容
器にリブを形成したり肉厚にすることなく、容器の縦方
向の圧縮強度を最大値付近まで高めることができる。こ
のため、容器の材料費が安価で、軽量になる。さらに、
上記従来品のように肩部の距離が容器の底から口頚部下
端までの胴部の距離の制約を受けることはない。The container 1 is formed with a continuous surface from the body portion 4 to the shoulder portion 5 and the mouth / neck portion 3 to the mouth portion 2, and has a frustoconical mouth / neck portion. 3b, the ratio of the respective diameters A, B, C of the body portion 4 is set to 43 to 49:48 to 55: 100, and the connection angle θ at the midpoint 5c of the shoulder portion 5 is set to a plane orthogonal to the center line of the container. On the other hand, since it is set to 50 to 60 degrees, the longitudinal compressive strength of the container can be increased to the maximum value without forming ribs or making the container thick. Therefore, the material cost of the container is low and the weight is light. further,
Unlike the conventional products described above, the distance of the shoulder is not restricted by the distance of the body from the bottom of the container to the lower end of the mouth and neck.
第１図は本考案の実施例を示す容器の側面図、第２図は
強度試験の結果を示すグラフ図である。 １……容器 ２……口部 ３……口頚部 ４……胴部 ５……肩部 3a……口頚部上端部 3b……口頚部下端部 5a……肩部の中間点FIG. 1 is a side view of a container showing an embodiment of the present invention, and FIG. 2 is a graph showing the result of a strength test. 1 ... Container 2 ... Mouth 3 ... Mouth / neck 4 ... Body 5 ... Shoulder 3a ... Mouth neck upper end 3b ... Mouth neck lower end 5a ... Shoulder middle point
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−194939（ＪＰ，Ａ) 特開 昭64−267146（ＪＰ，Ａ) 実開 昭56−118806（ＪＰ，Ｕ) 特公 昭47−33676（ＪＰ，Ｂ１) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-57-194939 (JP, A) JP-A-64-267146 (JP, A) Actual development: JP-A-56-118806 (JP, U) JP-B 47- 33676 (JP, B1)
Claims (1)
経て口部２に至る部位を連続面で形成するとともに、肩
部５を曲面で形成し、前記肩部の圧縮強度を拡大したブ
ロー成型容器において、截頭円錐形の口頚部を具え、口
頚部上端部3aの直径をA,口頚部下端部3bの直径をB,胴部
４の直径をＣとしたとき、夫々の直径A,B,Cの比率を43
〜49:48〜55:100とし、肩部５の中間点5cにおける接線
角度θを容器の中心線に直交する平面に対して50〜60度
としたことを特徴とするブロー成型容器。1. A container 1 comprising a body portion 4 and a shoulder portion 5 and a mouth / neck portion 3 to a mouth portion 2 is formed as a continuous surface, and the shoulder portion 5 is formed as a curved surface so that the compressive strength of the shoulder portion is increased. In the blow-molded container in which the above is enlarged, a frustoconical mouth-neck portion is provided, where the diameter of the upper neck 3a of the neck is A, the diameter of the lower end 3b of the mouth is B, and the diameter of the body 4 is C, respectively. Ratio of diameters A, B and C of 43
The blow molding container is characterized in that the tangent angle θ at the intermediate point 5c of the shoulder portion 5 is set to ˜49: 48 to 55: 100 and to 50 to 60 degrees with respect to the plane orthogonal to the center line of the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988023951U JPH0720010Y2 (en) | 1988-02-25 | 1988-02-25 | Blow molding container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988023951U JPH0720010Y2 (en) | 1988-02-25 | 1988-02-25 | Blow molding container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01128508U JPH01128508U (en) | 1989-09-01 |
| JPH0720010Y2 true JPH0720010Y2 (en) | 1995-05-10 |
Family
ID=31243382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988023951U Expired - Lifetime JPH0720010Y2 (en) | 1988-02-25 | 1988-02-25 | Blow molding container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720010Y2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9028773B2 (en) | 2001-09-12 | 2015-05-12 | Handylab, Inc. | Microfluidic devices having a reduced number of input and output connections |
| US9051604B2 (en) | 2001-02-14 | 2015-06-09 | Handylab, Inc. | Heat-reduction methods and systems related to microfluidic devices |
| USD742027S1 (en) | 2011-09-30 | 2015-10-27 | Becton, Dickinson And Company | Single piece reagent holder |
| US9186677B2 (en) | 2007-07-13 | 2015-11-17 | Handylab, Inc. | Integrated apparatus for performing nucleic acid extraction and diagnostic testing on multiple biological samples |
| US9222954B2 (en) | 2011-09-30 | 2015-12-29 | Becton, Dickinson And Company | Unitized reagent strip |
| US9238223B2 (en) | 2007-07-13 | 2016-01-19 | Handylab, Inc. | Microfluidic cartridge |
| US9259734B2 (en) | 2007-07-13 | 2016-02-16 | Handylab, Inc. | Integrated apparatus for performing nucleic acid extraction and diagnostic testing on multiple biological samples |
| US9259735B2 (en) | 2001-03-28 | 2016-02-16 | Handylab, Inc. | Methods and systems for control of microfluidic devices |
| US9347586B2 (en) | 2007-07-13 | 2016-05-24 | Handylab, Inc. | Automated pipetting apparatus having a combined liquid pump and pipette head system |
| USD787087S1 (en) | 2008-07-14 | 2017-05-16 | Handylab, Inc. | Housing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6222838B2 (en) * | 2014-03-03 | 2017-11-01 | サントリーホールディングス株式会社 | Plastic bottles for carbonated drinks |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118806U (en) * | 1980-02-12 | 1981-09-10 | ||
| JPS57194939A (en) * | 1981-05-20 | 1982-11-30 | Owens Illinois Inc | Self-erecting type plastic bottle |
| US4785949A (en) * | 1987-12-11 | 1988-11-22 | Continental Pet Technologies, Inc. | Base configuration for an internally pressurized container |
-
1988
- 1988-02-25 JP JP1988023951U patent/JPH0720010Y2/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9051604B2 (en) | 2001-02-14 | 2015-06-09 | Handylab, Inc. | Heat-reduction methods and systems related to microfluidic devices |
| US9528142B2 (en) | 2001-02-14 | 2016-12-27 | Handylab, Inc. | Heat-reduction methods and systems related to microfluidic devices |
| US9259735B2 (en) | 2001-03-28 | 2016-02-16 | Handylab, Inc. | Methods and systems for control of microfluidic devices |
| US9028773B2 (en) | 2001-09-12 | 2015-05-12 | Handylab, Inc. | Microfluidic devices having a reduced number of input and output connections |
| US9259734B2 (en) | 2007-07-13 | 2016-02-16 | Handylab, Inc. | Integrated apparatus for performing nucleic acid extraction and diagnostic testing on multiple biological samples |
| US9238223B2 (en) | 2007-07-13 | 2016-01-19 | Handylab, Inc. | Microfluidic cartridge |
| US9186677B2 (en) | 2007-07-13 | 2015-11-17 | Handylab, Inc. | Integrated apparatus for performing nucleic acid extraction and diagnostic testing on multiple biological samples |
| US9347586B2 (en) | 2007-07-13 | 2016-05-24 | Handylab, Inc. | Automated pipetting apparatus having a combined liquid pump and pipette head system |
| US11845081B2 (en) | 2007-07-13 | 2023-12-19 | Handylab, Inc. | Integrated apparatus for performing nucleic acid extraction and diagnostic testing on multiple biological samples |
| USD787087S1 (en) | 2008-07-14 | 2017-05-16 | Handylab, Inc. | Housing |
| US9222954B2 (en) | 2011-09-30 | 2015-12-29 | Becton, Dickinson And Company | Unitized reagent strip |
| US9480983B2 (en) | 2011-09-30 | 2016-11-01 | Becton, Dickinson And Company | Unitized reagent strip |
| USD742027S1 (en) | 2011-09-30 | 2015-10-27 | Becton, Dickinson And Company | Single piece reagent holder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01128508U (en) | 1989-09-01 |
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