JP2934397B2 - Plastic container - Google Patents
Plastic containerInfo
- Publication number
- JP2934397B2 JP2934397B2 JP12188995A JP12188995A JP2934397B2 JP 2934397 B2 JP2934397 B2 JP 2934397B2 JP 12188995 A JP12188995 A JP 12188995A JP 12188995 A JP12188995 A JP 12188995A JP 2934397 B2 JP2934397 B2 JP 2934397B2
- Authority
- JP
- Japan
- Prior art keywords
- plastic container
- annular heel
- container
- shape
- circular
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/0261—Bottom construction
- B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、非円形の底部を有する
プラスチック製容器に関し、更に詳しく言えば、内圧が
増して変形しても自立安定性を損わず、しかも、製作が
容易で、安価に製造できる、プラスチック製容器に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic container having a non-circular bottom portion, and more particularly, to a plastic container which does not lose its self-standing stability even when deformed due to an increase in internal pressure, and which is easy to manufacture. The present invention relates to a plastic container that can be manufactured at low cost.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】自立安
定性を持たせるようにした従来のプラスチック製容器と
しては、底部に以下のような工夫を施したものがある。
即ち、添付の図４に示すように、特開平５−３２２４７
号公報には、プラスチック製容器１０１の底部の中央に
該底部と同様の形状の凹部１０３を設け、該凹部１０３
の周縁から一定の幅で突出する環状ヒール部１０４を連
設し、環状ヒール部１０４の外周端縁から容器の胴部１
０７下端に至る間は、下方に縮径する円錐状曲面で形成
する外壁面１０６で連結したものが記載されている。2. Description of the Related Art As a conventional plastic container having a self-supporting stability, there is a plastic container whose bottom is devised as follows.
That is, as shown in FIG.
In the publication, a recess 103 having the same shape as the bottom is provided at the center of the bottom of the plastic container 101.
An annular heel portion 104 projecting from the peripheral edge of the container at a constant width is continuously provided, and the body portion 1 of the container extends from the outer peripheral edge of the annular heel portion 104.
In the figure, the lower end is connected by an outer wall surface 106 formed by a conical curved surface whose diameter is reduced downward.
【０００３】また、添付の図５に示すように、特開平６
−１８３４２９号公報には、プラスチック製容器２０１
の底部に脚部２０８を複数設けるとともに、それぞれの
脚部２０８の接地部２１０より外側に少なくとも一個の
凹部２０９を設けたものが記載されている。Further, as shown in FIG.
No. 183429 discloses a plastic container 201.
A plurality of leg portions 208 are provided at the bottom of each of the legs, and at least one concave portion 209 is provided outside the ground portion 210 of each leg portion 208.
【０００４】[0004]
【発明が解決しようとする課題】しかし、前記特開平５
−３２２４７号公報に記載のものは、プラスチック製容
器１０１の底部が非円形のとき、凹部１０３も非円形と
なる。そのため、炭酸飲料を入れる等して容器の内圧が
増した場合には、凹部１０３に連設される環状ヒール部
１０４が均一に変形せず、プラスチック製容器１０１の
自立安定性が損われてしまうという欠点がある。However, the above-mentioned Japanese Patent Application Laid-Open
In the device described in JP-A-32247, when the bottom of the plastic container 101 is non-circular, the concave portion 103 is also non-circular. Therefore, when the internal pressure of the container is increased by, for example, putting a carbonated beverage, the annular heel portion 104 connected to the concave portion 103 is not uniformly deformed, and the self-standing stability of the plastic container 101 is impaired. There is a disadvantage that.
【０００５】また、前記特開平６−１８３４２９号公報
に記載のものは、プラスチック製容器２０１の底部が非
円形であると、容器の内圧が増した場合に底部や脚部２
０８の変形が均一にならず、自立安定性が損われてしま
う欠点がある。更に、複雑な形状の脚部２０８を取付け
て自立安定性を向上させると、製作が難しくなり、コス
トも大幅に増加してしまうという欠点がある。[0005] Further, according to the above-mentioned Japanese Patent Application Laid-Open No. 6-183429, when the bottom of the plastic container 201 is non-circular, the bottom and the legs 2 are increased when the internal pressure of the container increases.
There is a disadvantage that the deformation of No. 08 is not uniform and the self-standing stability is impaired. Further, if the leg portion 208 having a complicated shape is attached to improve the self-standing stability, there is a disadvantage that the production becomes difficult and the cost is greatly increased.
【０００６】従って、本発明の目的は、内圧が増して変
形しても自立安定性を損わず、しかも、ブロー成形によ
り容易かつ安価に製作できる、プラスチック製容器を提
供することにある。Accordingly, an object of the present invention is to provide a plastic container which does not lose its self-standing stability even when deformed due to an increase in internal pressure, and which can be easily and inexpensively manufactured by blow molding.
【０００７】[0007]
【課題を解決するための手段】本発明は、非円形の底部
を有する容器における該底部の中央に、円形の凹部を設
け、該凹部の周縁に環状ヒール部を設けるとともに、該
環状ヒール部は、該底部の最下端に位置し且つ該最下端
は一平面上に位置するようになしてあり、該環状ヒール
部の外周端縁と上記容器の胴部とを、連結部でスムーズ
に連結したことを特徴とするプラスチック製容器を提供
することにより、上記目的を達成したものである。The present invention SUMMARY OF THE INVENTION are in the center of the bottom portion of the container having a bottom portion of non-circular, provided the circular recess, provided with an annular heel the periphery of the recess, the
An annular heel is located at the lowermost end of the bottom and
Is provided so as to be located on one plane, by providing a plastic container characterized in that the outer peripheral edge of the annular heel portion and the body of the container are smoothly connected by a connecting portion. The above object has been achieved.
【０００８】[0008]
【作用】本発明のプラスチック製容器によれば、円形の
凹部の周縁に環状ヒール部が設けられているので、炭酸
飲料を入れること等によりプラスチック製容器の内圧が
増大しても、環状ヒール部は均一に変形し、自立安定性
が損われない。According to the plastic container of the present invention, since the annular heel portion is provided on the periphery of the circular concave portion, even if the internal pressure of the plastic container increases due to the addition of carbonated beverage or the like, the annular heel portion. Deforms uniformly and does not lose its self-standing stability.
【０００９】[0009]
【実施例】以下、本発明のプラスチック製容器の一実施
例について図面を参照しながら具体的に説明する。図１
は本実施例のプラスチック製容器の部分断面図、図２は
図１のプラスチック製容器の倒立した状態での要部斜視
図、図３は図１のプラスチック製容器の底面図である。
本実施例のプラスチック製容器１は、非円形の底部２を
有しており、該底部２の中央に円形の凹部３を設け、該
凹部３の周縁に環状ヒール部４を設けるとともに、該環
状ヒール部４の外周縁端４ｂと上記プラスチック製容器
１の胴部７とを、連結部５でスムーズに連結したもので
ある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the plastic container of the present invention will be specifically described below with reference to the drawings. FIG.
2 is a partial cross-sectional view of the plastic container of the present embodiment, FIG. 2 is a perspective view of a main part of the plastic container of FIG. 1 in an inverted state, and FIG. 3 is a bottom view of the plastic container of FIG.
The plastic container 1 of this embodiment has a non-circular bottom 2, a circular recess 3 is provided at the center of the bottom 2, and an annular heel 4 is provided around the periphery of the recess 3. The outer peripheral edge 4b of the heel portion 4 and the body portion 7 of the plastic container 1 are smoothly connected by the connecting portion 5.
【００１０】本実施例について更に詳述すると、本実施
例のプラスチック製容器１は、ブロー成形により成形し
たものであり、横断面楕円形状の筒形状体の胴部７と、
楕円形の底部２とを有している。また、該底部２に設け
られた凹部３は、内方に凹状の曲面状の形状となってい
る。環状ヒール部４は、図１に示す如く、上記底部２の
最下端に位置しており、該最下端は一平面上に位置する
ようになしてある。また、この環状ヒール部４は、図３
に示す如く、断面が小さな半円形状（半径０．３〜５ｍ
ｍ）を有しており、その内周端縁４ａが凸曲面状に形成
され、また、その外周端縁４ｂから連結部５が延設され
ている。この連結部５は、図２又は図３に示す如く、前
記外周端縁４ｂと繋がる外周が楕円形状の平面部５ａ
と、この平面部５ａを胴部７とスムーズに連結する曲面
部５ｂとからなっている。The present embodiment will be described in more detail. The plastic container 1 of the present embodiment is formed by blow molding, and comprises a cylindrical body 7 having an elliptical cross section.
And an oval bottom 2. In addition, the concave portion 3 provided in the bottom portion 2 has an inward concave curved surface shape. The annular heel portion 4 is located at the lowermost end of the bottom portion 2 as shown in FIG. 1, and the lowermost end is located on one plane. Further, this annular heel portion 4 corresponds to FIG.
As shown in the figure, the cross section is a small semicircular shape (radius 0.3 to 5 m
m), the inner peripheral edge 4a is formed in a convex curved shape, and the connecting portion 5 extends from the outer peripheral edge 4b. As shown in FIG. 2 or FIG. 3, the connecting portion 5 has a flat portion 5a having an elliptical outer periphery connected to the outer peripheral edge 4b.
And a curved surface portion 5b for smoothly connecting the flat portion 5a to the body portion 7.
【００１１】本実施例のプラスチック製容器１では、環
状ヒール部４が接地される。この環状ヒール部４は、円
形の凹部３の周縁に設けられており、底部２の形状に拘
わらず円形の環状である。従って、プラスチック製容器
１の内圧が増しても、環状ヒール部４が不均一に変形す
ることがなく、自立安定性が損われることがない。ま
た、ブロー成形の際の金型として特に複雑な金型を要し
ないので、容易かつ安価に製作できる。In the plastic container 1 of this embodiment, the annular heel portion 4 is grounded. The annular heel portion 4 is provided on the periphery of the circular concave portion 3 and has a circular annular shape regardless of the shape of the bottom portion 2. Therefore, even if the internal pressure of the plastic container 1 increases, the annular heel portion 4 does not deform unevenly, and the self-standing stability does not deteriorate. Also, since a particularly complicated mold is not required as a mold for blow molding, it can be manufactured easily and at low cost.
【００１２】本発明は、上述した実施例に制限されるも
のではなく、具体的な各部の形状や寸法は適宜変更可能
である。例えば、本発明が適用されるプラスチック製容
器は、底面形状が楕円形であるものに限られず、多角形
や矩形であるもの等でもよく、また、胴部形状も、断面
多角形等でもよく、底面形状と胴部の断面形状とが異な
ってもよい。また、環状ヒール部の外周端縁と胴部とを
スムーズに連結する連結部は曲面のみで形成されていて
もよい。The present invention is not limited to the above-described embodiment, and specific shapes and dimensions of each part can be appropriately changed. For example, the plastic container to which the present invention is applied is not limited to a bottom shape having an elliptical shape, may be a polygonal shape or a rectangular shape, or a body shape may be a polygonal cross section, The bottom shape and the cross-sectional shape of the trunk may be different. Further, the connecting portion for smoothly connecting the outer peripheral edge of the annular heel portion and the body portion may be formed only with a curved surface.
【００１３】[0013]
【発明の効果】以上説明したように、本発明では、接地
される環状ヒール部が、底部の形状に拘わらず環状であ
るので、プラスチック製容器の内圧が増しても、環状ヒ
ール部が不均一に変形することがなく、常に優れた自立
安定性が保持される。また、ブロー成形により製作する
際の金型として、特に複雑な金型を要しないから、容易
にかつ安価に製作できる。As described above, in the present invention, since the annular heel portion to be grounded is annular regardless of the shape of the bottom portion, the annular heel portion is not uniform even if the internal pressure of the plastic container increases. And excellent self-sustaining stability is always maintained. In addition, since a particularly complicated mold is not required as a mold for manufacturing by blow molding, the mold can be easily and inexpensively manufactured.
【図１】本発明のプラスチック製容器の一実施例を示す
部分断面図である。FIG. 1 is a partial sectional view showing one embodiment of a plastic container of the present invention.
【図２】図１のプラスチック製容器の、倒立した状態で
の要部斜視図である。FIG. 2 is a perspective view of relevant parts of the plastic container of FIG. 1 in an inverted state.
【図３】図１のプラスチック製容器の底面図である。FIG. 3 is a bottom view of the plastic container of FIG. 1;
【図４】従来のプラスチック製容器の一例を示す図であ
って、容器を倒立させた状態での要部斜視図である。FIG. 4 is a diagram showing an example of a conventional plastic container, and is a perspective view of a main part in a state where the container is inverted.
【図５】従来のプラスチック製容器のその他の例を示す
底面図である。FIG. 5 is a bottom view showing another example of the conventional plastic container.
１ プラスチック製容器 ２ 底部 ３ 凹部 ４ 環状ヒール部 ４ａ 内周縁部 ４ｂ 外周縁部 ５ 連結部 ５ａ 平面部 ５ｂ 曲面部 ７ 胴部 DESCRIPTION OF SYMBOLS 1 Plastic container 2 Bottom part 3 Concave part 4 Annular heel part 4a Inner peripheral part 4b Outer peripheral part 5 Connecting part 5a Flat part 5b Curved surface part 7 Body part
フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B65D 1/02 Continuation of front page (58) Field surveyed (Int.Cl. 6 , DB name) B65D 1/02
Claims (2)
部の中央に、円形の凹部を設け、該凹部の周縁に環状ヒ
ール部を設けるとともに、該環状ヒール部は、該底部の
最下端に位置し且つ該最下端は一平面上に位置するよう
になしてあり、該環状ヒール部の外周端縁と上記容器の
胴部とを、連結部でスムーズに連結したことを特徴とす
るプラスチック製容器。1. A in the center of the bottom portion of the container having a non-circular bottom portion, provided with a circular recess, provided with an annular heel the periphery of the recess, the annular heel portion of the bottom portion
Is located at the lowermost end and the lowermost end is located on one plane
Yes form the plastic container, characterized in that the body portion of the peripheral edge and the container of the annular heel and ligated smoothly connecting portion.
〜５ｍｍの半円形状を有しており、その内周端縁が凸曲
面状に形成されていることを特徴とする請求項１記載の
プラスチック製容器。 2. The annular heel portion has a cross section with a radius of 0.3.
It has a semicircular shape of up to 5 mm, and its inner edge is convex.
2. The method according to claim 1, wherein the surface is formed in a planar shape.
Plastic container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12188995A JP2934397B2 (en) | 1995-05-19 | 1995-05-19 | Plastic container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12188995A JP2934397B2 (en) | 1995-05-19 | 1995-05-19 | Plastic container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08318922A JPH08318922A (en) | 1996-12-03 |
| JP2934397B2 true JP2934397B2 (en) | 1999-08-16 |
Family
ID=14822422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12188995A Expired - Lifetime JP2934397B2 (en) | 1995-05-19 | 1995-05-19 | Plastic container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2934397B2 (en) |
-
1995
- 1995-05-19 JP JP12188995A patent/JP2934397B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08318922A (en) | 1996-12-03 |
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