JPH0244967Y2 - - Google Patents
Info
- Publication number
- JPH0244967Y2 JPH0244967Y2 JP1983180527U JP18052783U JPH0244967Y2 JP H0244967 Y2 JPH0244967 Y2 JP H0244967Y2 JP 1983180527 U JP1983180527 U JP 1983180527U JP 18052783 U JP18052783 U JP 18052783U JP H0244967 Y2 JPH0244967 Y2 JP H0244967Y2
- Authority
- JP
- Japan
- Prior art keywords
- mouth
- molded product
- bottle
- main body
- primary molded
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000071 blow moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は、熱可塑性合成樹脂製の２軸延伸ブロ
ー成形広口壜体の一次成形品に関するものであつ
て、成形金型の構造が簡単になるようにすること
を目的とする。[Detailed description of the invention] The present invention relates to a primary molded product of a biaxially stretched wide-mouth bottle made of thermoplastic synthetic resin, and its purpose is to simplify the structure of the molding die. shall be.
ポリエチレンテレフタレート樹脂の如き熱可塑
性合成樹脂を用いて広口壜体を２軸延伸ブロー成
形する場合、成形された広口壜体の特に下端周縁
部が肉薄となつて機械的な強度に劣る欠点があ
り、この欠点を解消するべく一次成形品の所定部
分をリング状に肉厚に予め成形しておく手段が考
えられ、またこのような機械的強度に関する問題
点だけでなく、一次成形品の所定部分を一定の模
様が形成されるように凹凸を設けた肉厚コントロ
ールをすることによつて、ブロー成形後の壜体内
面に、模様、マーク、文字等を形成し、外部から
透視できるようにすることも考えられる。 When a wide-mouth bottle is biaxially stretch blow-molded using a thermoplastic synthetic resin such as polyethylene terephthalate resin, there is a drawback that the molded wide-mouth bottle becomes thin, especially at the lower peripheral edge, and has poor mechanical strength. In order to overcome this drawback, a method of pre-forming a predetermined portion of the primary molded product into a thick ring shape has been considered. By controlling the wall thickness by providing unevenness so that a certain pattern is formed, patterns, marks, letters, etc. can be formed on the inner surface of the bottle after blow molding, and can be seen through from the outside. can also be considered.
第１図は従来のこの種一次成形品の構造を示す
ものにして、熱可塑性合成樹脂によつて射出成形
される一次成形品１は、有底筒形状であつて、周
壁２の外面に突条３を周設するなり、内面に凹溝
４を周設するなりして、肉厚を変化させており、
この肉厚の変化が一次成形品１を２軸延伸ブロー
成形した際にそのまま壜体の肉厚をコントロール
して現出するのである。 FIG. 1 shows the structure of a conventional primary molded product of this type. The primary molded product 1, which is injection molded from thermoplastic synthetic resin, has a cylindrical shape with a bottom and protrusions on the outer surface of a peripheral wall 2. The wall thickness is varied by providing strips 3 around the circumference and grooves 4 on the inner surface.
This change in wall thickness directly appears by controlling the wall thickness of the bottle when the primary molded product 1 is subjected to biaxial stretch blow molding.
ところで上述した如き構成の一次成形品１を射
出成形する場合、キヤビテイとコアとは矢視Ｙ，
Y′方向である軸方向にそれぞれ型開きすること
になるので、前述の突条３、凹溝４等を設けて肉
厚を変化させるとなると、キヤビテイ、コアの構
造を極めて複雑なものとしなければならず、甚だ
高価なものとならざるを得なかつた。 By the way, when injection molding the primary molded product 1 having the above-mentioned configuration, the cavity and core are arranged in the direction of arrow Y,
Since the molds will be opened in the axial direction, which is the Y' direction, if the above-mentioned protrusions 3, grooves 4, etc. are to be provided to change the wall thickness, the structure of the cavity and core must be extremely complex. However, it had to be extremely expensive.
本考案は上述した従来の欠点、不都合を解消す
るべく考案された一次成形品に関するものであつ
て、全体を薄皿形状とし、一部に突条等の凹凸を
設けた構成である。 The present invention relates to a primary molded product devised to eliminate the above-mentioned conventional drawbacks and inconveniences, and has a structure in which the entire product is in the shape of a thin plate, and a portion thereof is provided with irregularities such as ridges.
以下本考案の一実施例を図面に従つて説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
図中５は本考案の一次成形品を示すものにし
て、ブロー成形された際の壜体の底部を含む胴部
となる円板形状の本体部６の周縁に、短円筒形状
の口部７を一体設した薄皿形状であつて、本体部
６の内面所定位置には本体部６の中心を中心とし
てリング状の凹溝８が周設され、また外面には同
様に突条９が設けられている。 In the figure, reference numeral 5 shows the primary molded product of the present invention, in which a short cylindrical mouth part 7 is attached to the periphery of a disc-shaped main body part 6, which becomes the body part including the bottom part of the bottle when blow-molded. The main body part 6 has a ring-shaped groove 8 around the center thereof at a predetermined position on the inner surface of the main body part 6, and a protrusion 9 is similarly provided on the outer surface. It is being
逆に凹溝８を外面に、突条９を内面に設ける構
成でもよく、さらには本体部６の中心に関して、
この中心を中心として円状に設けることなく、本
体部６の一部に所定のマーク等の模様を形成する
ように膨出設、或いは陥没させてもよく、これら
凹溝８、突条９、模様等の成形によつて、本体部
６に凹凸が形成され、肉厚部分と肉薄部分とが現
出されるのである。 On the contrary, the groove 8 may be provided on the outer surface and the protrusion 9 may be provided on the inner surface.
Instead of forming a circle around this center, a part of the main body 6 may be bulged or depressed to form a pattern such as a predetermined mark, and these grooves 8, protrusions 9, By forming a pattern or the like, unevenness is formed on the main body portion 6, and a thick portion and a thin portion are exposed.
このような一次成形品５を２軸延伸ブローする
結果、口部７を除く本体部６全体が十分の延伸を
受け、ブロー金型に沿つた広口壜体１４が成形さ
れることになるが、延伸を特に強く受けて肉薄と
なりがちな壜体１４の下端部等の所定位置に対応
する前記一次成形品５の所定位置を、例えば幅の
ある突条９を配することによつて肉厚なものとし
ておけば、ブロー成形後の壜体１４は、十分の延
伸を受けながらも肉厚が均一なものとなり、機械
的な強度が確保されることになる。 As a result of biaxial stretching blowing of such a primary molded product 5, the entire body portion 6 except the mouth portion 7 is sufficiently stretched, and a wide mouth bottle body 14 is molded along the blow mold. For example, by arranging a wide protrusion 9 at a predetermined position of the primary molded product 5, which corresponds to a predetermined position such as the lower end of the bottle body 14, which tends to become thin due to particularly strong stretching, the wall can be made thicker. If this is done, the bottle 14 after blow molding will have a uniform wall thickness while being sufficiently stretched, and mechanical strength will be ensured.
また一次成形品５にマーク模様を設けた場合に
は、ブロー成形後に、壜体１４に形成される肉厚
部分（或いは肉薄部分であつてもよい）が模様状
に現出し、その模様が外部から透視できることに
なるのである。但しこのような外観上の効果を得
るためには、熱可塑性合成樹脂としてポリエチレ
ンテレフタレート樹脂の如き透明性に優れた材料
を用いる必要があろう。 In addition, when a mark pattern is provided on the primary molded product 5, after blow molding, the thick part (or thin part may be used) formed on the bottle body 14 will appear in a pattern, and the pattern will be visible on the outside. This means that you can see through it. However, in order to obtain such an effect on appearance, it is necessary to use a material with excellent transparency such as polyethylene terephthalate resin as the thermoplastic synthetic resin.
なお口部７は、肉厚な短筒形状の口筒部１０の
斜め上方に突出する形態で口縁部１１を一体設し
た構成であり、さらにこの口縁部１１は、その外
周下端表面１２を、壜体１４として成形された後
に組付けられるカシメキヤツプ（図示省略）の開
蓋性が良好となる曲面で、また上面１３を、カシ
メキヤツプのパツキンとの間のシール性が良好と
なる曲面でそれぞれ成形されている。 Note that the mouth portion 7 has a structure in which a mouth rim portion 11 is integrally provided in a form that projects obliquely upward from a mouth barrel portion 10 in the shape of a short thick wall, and further, this mouth rim portion 11 has a lower outer peripheral surface 12. The upper surface 13 is a curved surface that provides good opening performance of the crimped cap (not shown) that is assembled after being formed as the bottle body 14, and the upper surface 13 is a curved surface that provides good sealing performance between the crimped cap and the gasket. Molded.
従つて一次成形品１を前述の如く２軸延伸ブロ
ー成形すると、本体部２が延伸されることになる
が、この延伸力は肉厚な口筒部１０が存するがゆ
えに口縁部１１にまで影響を及ぼすことはなく、
口縁部１１は原形状のまま維持され、壜体１４と
して成形された後のカシメキヤツプの密封性、開
蓋性を十分に確保することができるのである。 Therefore, when the primary molded product 1 is biaxially stretch blow molded as described above, the main body portion 2 is stretched, but this stretching force extends to the mouth edge portion 11 due to the presence of the thick mouth tube portion 10. has no effect,
The rim 11 is maintained in its original shape, and the crimped cap after being formed into the bottle body 14 can be sufficiently sealed and opened.
以上の説明から明らかなように、本考案の一次
成形品５によれば所定部分に凹凸を設けて肉厚を
変化させることができるので、ブロー成形される
壜体１４の肉厚のコントロールを簡単に達成する
ことができ、壜体１４の機械的強度を高め、或い
は壜体１４に所望の模様を肉厚の変化によつて形
成することができる。 As is clear from the above description, according to the primary molded product 5 of the present invention, the wall thickness can be changed by providing unevenness in predetermined portions, so that the wall thickness of the bottle body 14 to be blow molded can be easily controlled. The mechanical strength of the bottle 14 can be increased, or a desired pattern can be formed on the bottle 14 by changing the wall thickness.
また一次成形品５は薄皿形状であつて、円板形
状の本体部６に凹溝８なり突条９なりを設ける構
成であるので、射出成形後の金型からの離型も極
めて簡単であり、金型を特殊な構造とする必要は
ない。 In addition, the primary molded product 5 is in the shape of a thin plate, and the disc-shaped main body 6 is provided with grooves 8 and protrusions 9, so it is extremely easy to release the mold from the mold after injection molding. Yes, there is no need for the mold to have a special structure.
よつて本考案の一次成形品によれば、機械的強
度に優れ、或いは肉厚の変化により所望の模様が
形成された２軸延伸ブロー成形広口壜体を得るこ
とができ、構造が簡単であるので複雑な金型を必
要とせず容易に成形することが可能であり、しか
も廉価である等、多くの優れた作用効果を有す
る。 Therefore, according to the primary molded product of the present invention, it is possible to obtain a biaxial stretch blow-molded wide-mouth bottle that has excellent mechanical strength or has a desired pattern formed by changing the wall thickness, and has a simple structure. Therefore, it can be easily molded without requiring a complicated mold, and it has many excellent functions and effects, such as being inexpensive.
第１図は従来の一次成形品を示す断面図であ
る。第２図は本考案の一実施例を示す断面図であ
る。
符号の説明、５；一次成形品、６；本体部、
７；口部、８；凹溝、９；突条、１４；壜体。
FIG. 1 is a sectional view showing a conventional primary molded product. FIG. 2 is a sectional view showing an embodiment of the present invention. Explanation of symbols, 5; Primary molded product, 6; Main body,
7; Mouth, 8; Concave groove, 9; Projection, 14; Bottle body.
Claims (1)
面のキヤツプのパツキンとの間にシール性の良好
な曲面でそれぞれ成形した口縁部を、肉厚な短筒
形状の口筒部の斜め外上方に突出する形態で一体
設した口部を、円板形状の本体部周縁に連設し、
ブロー成形された壜体の底部を含む胴部となる前
記本体部に、凹凸を設けて成る熱可塑性合成樹脂
製の２軸延伸ブロー成形広口壜体の一次成形品。 The bottom edge of the outer periphery has a curved surface that allows for easy opening, and the opening rim is formed with a curved surface that allows for good sealing between the upper cap gasket and the thick, short cylindrical opening. An integrally formed mouth projecting outwardly and upwardly is connected to the periphery of the disc-shaped main body,
A primary molded product of a biaxial stretch blow-molded wide-mouth bottle made of thermoplastic synthetic resin, the main body being a body including the bottom of the blow-molded bottle having irregularities.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18052783U JPS6088711U (en) | 1983-11-22 | 1983-11-22 | Primary molded product of biaxially stretched blow molded wide mouth bottle |
| US06/672,670 US4641758A (en) | 1983-11-22 | 1984-11-19 | Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port and method of molding the same |
| DE87106939T DE3486209T2 (en) | 1983-11-22 | 1984-11-21 | Blow-molded, bottle-shaped container with a wide neck, made of biaxially oriented, synthetic, thermoplastic and molding process of the same. |
| EP19870106939 EP0240037B1 (en) | 1983-11-22 | 1984-11-21 | Blow-molded bottle-shaped container of biaxially orientated thermoplastic synthetic resin with wide port and method of molding the same |
| DE8484308092T DE3477365D1 (en) | 1983-11-22 | 1984-11-21 | Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port |
| CA000468355A CA1233422A (en) | 1983-11-22 | 1984-11-21 | Blow-molded bottle-shaped container or biaxially oriented thermoplastic synthetic resin with wide port and method of molding the same |
| EP84308092A EP0144196B1 (en) | 1983-11-22 | 1984-11-21 | Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port |
| AU35793/84A AU579842B2 (en) | 1983-11-22 | 1984-11-22 | Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port and method of molding the same |
| CA000555985A CA1255062A (en) | 1983-11-22 | 1988-01-06 | Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port and method of molding the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18052783U JPS6088711U (en) | 1983-11-22 | 1983-11-22 | Primary molded product of biaxially stretched blow molded wide mouth bottle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6088711U JPS6088711U (en) | 1985-06-18 |
| JPH0244967Y2 true JPH0244967Y2 (en) | 1990-11-29 |
Family
ID=30391413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18052783U Granted JPS6088711U (en) | 1983-11-22 | 1983-11-22 | Primary molded product of biaxially stretched blow molded wide mouth bottle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6088711U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000038902A1 (en) * | 1998-12-28 | 2000-07-06 | A.K. Technical Laboratory, Inc. | Wide-mouthed container bottom molding method using stretch blow molding |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58185229A (en) * | 1982-04-23 | 1983-10-28 | Lion Corp | Molding of primarily molded product for molding synthetic resin made container to be biaxially stretched and synthetic resin made biaxially stretched container |
| JPS5850926B2 (en) * | 1980-04-08 | 1983-11-14 | 日産化学工業株式会社 | Production method of calcium nitrite aqueous solution |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5850926U (en) * | 1981-10-01 | 1983-04-06 | 株式会社吉野工業所 | Primary molded product for wide mouth bottle molding |
-
1983
- 1983-11-22 JP JP18052783U patent/JPS6088711U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5850926B2 (en) * | 1980-04-08 | 1983-11-14 | 日産化学工業株式会社 | Production method of calcium nitrite aqueous solution |
| JPS58185229A (en) * | 1982-04-23 | 1983-10-28 | Lion Corp | Molding of primarily molded product for molding synthetic resin made container to be biaxially stretched and synthetic resin made biaxially stretched container |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6088711U (en) | 1985-06-18 |
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