JPS5843307B2 - Biaxially stretched polygonal container - Google Patents
Biaxially stretched polygonal containerInfo
- Publication number
- JPS5843307B2 JPS5843307B2 JP51013669A JP1366976A JPS5843307B2 JP S5843307 B2 JPS5843307 B2 JP S5843307B2 JP 51013669 A JP51013669 A JP 51013669A JP 1366976 A JP1366976 A JP 1366976A JP S5843307 B2 JPS5843307 B2 JP S5843307B2
- Authority
- JP
- Japan
- Prior art keywords
- shape
- polygonal
- container
- parison
- biaxially stretched
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Description
【発明の詳細な説明】 本発明は二軸延伸した多角形容器に関する。[Detailed description of the invention] The present invention relates to biaxially stretched polygonal containers.
従来の合成樹脂容器は、成形する際胴部等の周壁を等肉
（均一肉厚）にすることによって強度を確保させている
。Conventional synthetic resin containers ensure strength by making the peripheral walls of the body and the like uniform (uniform wall thickness) during molding.
かかる構成は横断面形状が円形又は非円伺れの容器にも
実施されており、このような手段が容器の強度を解保す
る上で現存する唯一の技術手段である。Such a configuration is also implemented for containers with a circular or non-circular cross-sectional shape, and this is the only existing technical means to ensure the strength of the container.
従って現存する容器の大部分は上記手段により成形され
るから、一定板上の容器強度は得られず、よって、不満
足ながらこれに甘んじているのが実状である。Therefore, since the majority of existing containers are formed by the above-mentioned method, the strength of the containers on a constant plate cannot be obtained, and therefore, the reality is that we are unsatisfied with this.
そこで本発明は従来の合成樹脂製容器の低強度に鑑み検
討の結果開発したものであって、二軸延伸して成形され
る前工程としての熱可塑性樹脂製のパリソンを、金型キ
ャビティ内で外形が多角形に又内形は円形に延伸される
（こ適した変肉厚に周壁を形成しておき、該パリソンを
二軸延伸して成形された多角形外壁面と直線に近似する
内壁面とから成る複数個の三角形断面が節点で連結され
た胴部横断面形状をトラス構造に構成した事を特徴とす
るもので、その目的は、横断面形を複数個の三角形が節
点で連続するトラス構造とすることによって高い強度の
二軸延伸した多角形容器を提供することである。Therefore, the present invention was developed as a result of studies in view of the low strength of conventional synthetic resin containers.The present invention was developed as a result of consideration of the low strength of conventional synthetic resin containers. The outer shape is polygonal and the inner shape is stretched to a circular shape (the peripheral wall is formed with a suitable variable thickness, and the parison is stretched biaxially to form a polygonal outer wall surface and an inner shape that approximates a straight line. It is characterized by a truss structure in which the cross-sectional shape of the body is made up of multiple triangular cross-sections connected to the walls at nodes. The object of the present invention is to provide a biaxially stretched polygonal container with high strength by forming a truss structure.
以下本発明を一実施例を示した図面ｌこ基いて詳細に説
明する。The present invention will be described in detail below with reference to the drawings showing one embodiment.
第１図、第２図において、容器Ａは胴部１と、該胴部よ
り縮径の口頚部２を有し、少なくとも胴部１の横断面形
状は、外形が多角形状３（こ、円形は円形４に形成され
る 即ちこのよう（こ胴部１の横断面形状を形成するこ
と（こまって、外形をなす各辺５，５が交わった夫々の
角部６・・・は、厚肉７・・・に形成され、又各辺５・
・・の中間に相当する部分が最も薄肉８に形成されるも
ので、胴部横断面の単位面積の形状は、第３図に示す如
く、辺５の１７２の長さの辺５／、５／と内壁面から成
る辺９とから二等辺三角形Ｂを形成することができる。1 and 2, a container A has a body part 1 and a neck part 2 having a diameter smaller than that of the body part, and at least the cross-sectional shape of the body part 1 has a polygonal shape 3 (this is circular) is formed into a circular shape 4. That is, by forming the cross-sectional shape of the body part 1 like this (in other words, each corner 6 where each side 5, 5 forming the outer shape intersects) is a thick-walled 7..., and each side 5...
The part corresponding to the middle of . An isosceles triangle B can be formed from / and the side 9 consisting of the inner wall surface.
従って総体として胴部横断面形状は、二等辺三角形Ｂを
形成した辺５′と辺９が交わった節点ｄ、ｅで複数個の
二等辺三角形が夫々連結されるから各辺は節点の位置で
交わった所謂トラス構造を満足させた構成となって、剛
構造となる。Therefore, as a whole, the cross-sectional shape of the torso is such that multiple isosceles triangles are connected at nodes d and e, where sides 5' and 9 intersect, forming isosceles triangle B, so each side is at the node position. The structure satisfies the so-called intersecting truss structure, resulting in a rigid structure.
而して、第３図（こおいて、点ａの外力はすべて節点ｄ
、ｅに作用し、力学的に満足し得る強度を発現し得るも
のである。Therefore, in Figure 3 (here, all the external force at point a is at node d
, e, and can exhibit mechanically satisfactory strength.
父上記トラス構造は、構造体における強度を充分高め得
ることは例えば建造物の梁等に多用されて立証されると
ころであるから、ここで詳細に説明することは省略する
。The fact that the above truss structure can sufficiently increase the strength of a structure has been proven through its extensive use in, for example, beams of buildings, so a detailed explanation will be omitted here.
又実施図面は胴部外形を正多角形とした場合を示したが
これ以外に本発明容器は不等辺三角形であ−っでもよい
事は勿論である。Further, although the drawings show a case where the outer shape of the body is a regular polygon, it goes without saying that the container of the present invention may have a scalene triangular shape.
次に本発明容器の成形手段について述べる。Next, the means for forming the container of the present invention will be described.
本発明の容器は、熱可塑性の合成樹脂で二軸延伸して成
形されるもので、先ず二軸延伸の前工程として射出成形
叉は押出酸形によって成形されるパリソン１０は第５図
が示した如く、筒部１１の横断面形状を、内形は多角形
１２に、外形を円形１３に成形して筒部周壁を、二輪延
伸して外形が多角形の容器（こ成形するのに適した変肉
に形成しておき、最も厚肉１４とした部分が延伸されて
、前記容器の最も厚肉７となる部分を構成するよう（こ
する。The container of the present invention is molded from a thermoplastic synthetic resin by biaxial stretching, and the parison 10 is first molded by injection molding or extrusion acid molding as a pre-step to the biaxial stretching, as shown in FIG. For example, the cross-sectional shape of the cylindrical portion 11 is formed into a polygonal inner shape 12 and an outer shape into a circular shape 13, and the peripheral wall of the cylindrical portion is made by stretching two wheels to form a container with a polygonal outer shape (suitable for this molding). The thickest part 14 is stretched so as to form the thickest part 7 of the container.
又パリソンはその胴部横断面形状は上記とは反動（こ、
外形を多角形に、内形は円形Ｆこ形成したものであって
もよく、何れであっても、前記容器の胴部形状に延伸し
て成形させるのに都合のよい形状であればよいから、本
発明はパリソンの横断面形状を特に限定するものではな
い。Also, the cross-sectional shape of the body of the parison is different from the above.
The outer shape may be polygonal and the inner shape may be circular. Either shape may be used as long as it is convenient for stretching and forming into the shape of the body of the container. However, the present invention does not particularly limit the cross-sectional shape of the parison.
以−Ｌから明らかなように本発明の多角形容器は、少な
くとも胴部の横断面形状を、外形は多角形状に、内形を
円形に形成して単位横断面形状を三角形状とし、それ等
三角形が節点で夫々交わって総体としてトラス構造に構
成したものであるから、胴部にかかる外力はすべて三角
形断面を構成する各辺の節点に作用する所謂トラス構造
の特性を有効に合成樹脂容器に採用し得て胴部は剛構造
となり、よって従来の容器では到底達威し得ないところ
の高い強度を発現し得る利点がある。As is clear from the following, the polygonal container of the present invention has at least a body having a polygonal outer shape and a circular inner shape, so that the unit cross-sectional shape is triangular. Since the triangles intersect at each node and are constructed as a truss structure as a whole, all external forces applied to the body are applied to the nodes on each side of the triangular cross section.The characteristics of the so-called truss structure are effectively applied to the synthetic resin container. The body has a rigid structure, which has the advantage of exhibiting high strength that cannot be achieved with conventional containers.
又本発明容器はトラス構造とした特殊な横断面形状とす
るにもかかわらず、成形は公知の吹き込み成形手段によ
って容易になし得るから量産に適し安価に製作し得ると
共に、二軸延伸する前工程として成形されるパリソンを
予め変肉に延伸される形状として、それを二軸延伸して
成形するから、各三角形断面の厚内部分が白化して“く
もる〃こともなく、従って例えば透明度の高い熱可塑性
樹脂材で成形することで容器は高い透明度が得られる等
、実用上有益な発明である。In addition, although the container of the present invention has a special cross-sectional shape with a truss structure, it can be easily formed by known blow molding means, making it suitable for mass production and manufactured at low cost. Since the parison to be molded is made into a shape that is stretched in advance to have a different thickness, and then biaxially stretched and molded, the thick inner part of each triangular cross section will not become white and "cloudy", and therefore, for example, a highly transparent parison can be formed. This is a practically useful invention, as the container can have high transparency by being molded from a thermoplastic resin material.
添付図面は本発明の実施例を示したもので第１図は多角
形容器の正面図、第２図は第１図ｔこおけるｎ−ｎ線描
断面図、第３図は本発明容器の横断面形状の説明図、第
４図、第５図は本発明多角形容器を成形する際に用いら
れるパリソンの一例を示したもので第４図はその正面図
、第５図は第４図のＩＶ−ＩＶ線線断断面図ある。
Ａ・・・・・・多角形容器、１・・・・・・容器の胴部
、１０・・・・・・パリソン。The attached drawings show an embodiment of the present invention, and FIG. 1 is a front view of a polygonal container, FIG. 2 is a sectional view taken along line nn in FIG. 1, and FIG. 3 is a cross-sectional view of the container of the present invention. Explanatory drawings of the surface shape, FIGS. 4 and 5, show an example of the parison used when molding the polygonal container of the present invention. FIG. 4 is a front view of the parison, and FIG. There is a sectional view taken along the line IV-IV. A: polygonal container, 1: body of the container, 10: parison.
Claims (1)
ともその周壁は横軸方向に多角形状に延伸するに適した
任意の変肉厚に成形させておき、このパリソンを金型の
多角形状キャビティ内で二輪延伸させて、少なくとも胴
部は外形が多角形で内形を円形とした横断面形に成形し
、もって、胴部断面形状を、外壁面と、直線に近似する
内壁面とから成る複数個の三角形断面が節点で連結され
たトラス構造に構成した事を特徴とする二軸延伸した多
角形容器。1. A parison made of a suitable thermoplastic resin is molded at least on its peripheral wall to a thickness of any desired thickness suitable for stretching into a polygonal shape in the transverse direction, and this parison is placed in a polygonal cavity of a mold. By stretching the two wheels, at least the body is formed into a cross-sectional shape with a polygonal outer shape and a circular inner shape. A biaxially stretched polygonal container characterized by having a truss structure in which triangular cross sections are connected at nodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51013669A JPS5843307B2 (en) | 1976-02-09 | 1976-02-09 | Biaxially stretched polygonal container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51013669A JPS5843307B2 (en) | 1976-02-09 | 1976-02-09 | Biaxially stretched polygonal container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5296169A JPS5296169A (en) | 1977-08-12 |
| JPS5843307B2 true JPS5843307B2 (en) | 1983-09-26 |
Family
ID=11839591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51013669A Expired JPS5843307B2 (en) | 1976-02-09 | 1976-02-09 | Biaxially stretched polygonal container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5843307B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018714U (en) * | 1983-07-18 | 1985-02-08 | 釜屋化学工業株式会社 | 2-way cake container |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6224311B1 (en) * | 1999-07-20 | 2001-05-01 | Emhart Inc. | Coated fastener inserts and method of producing the same |
| DE102009025912A1 (en) | 2009-06-03 | 2010-12-09 | Krones Ag | Body and containers made of bodies, and apparatus and method for creating containers |
| DE102009061730B3 (en) | 2009-06-03 | 2022-07-21 | Krones Aktiengesellschaft | Device and method for producing containers and containers produced with the method |
-
1976
- 1976-02-09 JP JP51013669A patent/JPS5843307B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018714U (en) * | 1983-07-18 | 1985-02-08 | 釜屋化学工業株式会社 | 2-way cake container |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5296169A (en) | 1977-08-12 |
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