JPH02233342A - Wall structure of synthetic resin bottle - Google Patents
Wall structure of synthetic resin bottleInfo
- Publication number
- JPH02233342A JPH02233342A JP1051082A JP5108289A JPH02233342A JP H02233342 A JPH02233342 A JP H02233342A JP 1051082 A JP1051082 A JP 1051082A JP 5108289 A JP5108289 A JP 5108289A JP H02233342 A JPH02233342 A JP H02233342A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- wall portion
- ridge
- wall structure
- ridgeline
- 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.)
- Granted
Links
- 229920003002 synthetic resin Polymers 0.000 title claims description 6
- 239000000057 synthetic resin Substances 0.000 title claims description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 15
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 15
- -1 polyethylene terephthalate Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 239000013078 crystal Substances 0.000 abstract description 8
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000001965 increasing effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000000071 blow moulding Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 241000272470 Circus Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 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)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、２軸延伸ブロー成形されたポリエチレンテレ
フタレーＩ・樹脂製の透明度の高い壜休の壁構造に関す
るもので、二つの壁面部分を屈曲して接続することによ
り壜体の外観形状に重大な影響を与える稜線部分の壁構
造に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a highly transparent wall structure made of biaxially stretched blow-molded polyethylene terephthalate I resin. This invention relates to the wall structure of the ridgeline portion, which has a significant effect on the external shape of the bottle due to its bending and connection.
［従来の技術〕
２軸延伸ブロー成形されたポリエチレンテレフタレート
樹脂（以下、単にＰＥＴと記す）製の壜体は、耐内容物
性、耐薬品性、耐候性、さらには耐衝撃性等の種々の耐
久性に優れていると共に、高い機械的強度および透明性
そして無公害性さらにはガスハリャー性を有しているの
で、各種の液体収納壜体として多量に使用されている。[Prior Art] Bottles made of polyethylene terephthalate resin (hereinafter simply referred to as PET) that have been subjected to biaxial stretch blow molding have various durability properties such as content resistance, chemical resistance, weather resistance, and even impact resistance. It has excellent properties such as high mechanical strength, transparency, non-polluting properties, and gas harrier properties, so it is used in large quantities as containers for various liquids.
これらのＰＥＴ製壜体の有する数多くの特性の内、透明
性は極めて優れたものであって、商品のクリヤー感を高
めるのに有効に作用している。Among the many properties of these PET bottles, transparency is extremely excellent, and is effective in enhancing the clear feel of products.
（発明が解決しようとする課題〕
このように、ＰＥＴ製壜休は優れた透明性を有するもの
なのであるが、同じ優れた透明感を発揮するガラス製壜
体と比べると、ＰＥＴ製壜休は単にクリヤーなだけであ
り、ガラス製壜体のように透過光線の屈折によるクリス
タル効果を発揮することがなく、このため視覚的変化の
乏しいものとなっている。(Problem to be solved by the invention) As described above, PET bottles have excellent transparency, but compared to glass bottles that exhibit the same excellent transparency, PET bottles have excellent transparency. It is simply clear, and unlike glass bottles, it does not exhibit a crystal effect due to the refraction of transmitted light, resulting in little visual change.
透明性の優れたＰＥＴ製壜体においてクリスタル効果が
低い大きな原因の一つは、ＰＥＴ製壜体が２輔延伸ブロ
ー成形品であるために、その肉厚が薄く、このため透過
光線を充分に屈折させることができないためと思われる
。One of the main reasons for the low crystal effect of PET bottles, which have excellent transparency, is that the PET bottles are two-way stretch-blow molded products, so their wall thickness is thin, which makes it difficult to absorb enough transmitted light. This is probably because it cannot be refracted.
そこで、ＰＥＴ製壜体に充分なクリスタル効果を与える
べ＜ＰＥＴ製壜体の肉厚を大きくすることが考えられる
が、ＰＥＴ製壜体の肉厚を大きくすると、一つの製品を
成形するのに要する高価なＰＥＴ材料量が増大し、この
ため製品単価が高くなる、２軸延伸ブロー成形技術が極
めて困難となる、２軸延伸変形させないと充分な透明性
を得ることかできない、合成樹脂成形品の軽■であると
云う利点が失われる等の重大な不都合が生しることにな
る。Therefore, in order to give the PET bottle a sufficient crystal effect, it is possible to increase the wall thickness of the PET bottle. Synthetic resin molded products require an increased amount of expensive PET material, which increases the unit price of the product.Biaxial stretch blow molding technology is extremely difficult.Synthetic resin molded products cannot obtain sufficient transparency without biaxial stretching deformation. This will cause serious inconveniences, such as the loss of the advantage of being lightweight.
本発明は、上記した従来技術における問題点を解消すべ
く創案されたもので、Ｐ ′Ｐ．Ｔ Ｍ Ｉｉ体の肉厚
を増大さゼることなしに、Ｐ Ｅ Ｔ製壜体に充分なク
リスタル効果を発現さセることを目的としたものである
。The present invention was created to solve the problems in the prior art described above, and P'P. The object of this invention is to produce a sufficient crystal effect in a PET bottle without increasing the wall thickness of the TMIi body.
上記目的を達成するだめの木発明の手段は、２軸延伸ブ
ロー成形されたＰＥＴ製の透明度の高い壜体の壁構造に
関するものであること、二つの壁面部分が屈曲線を介し
て接続されていること、
二つの壁面部分を接続している屈曲線部分が、この二つ
壁面部分の内の一方である第一壁面部分の他方である第
二壁面部分への接続端縁が第二壁面部分側にわずかに延
長された構造となっていること、
延長された第一壁面部分の接続Ｑｒ：−：縁と対向ずろ
第一壁面部分の接続端縁との間を、小さな曲率半径で湾
曲反転した稜線壁部分で接続すること、にある。The means of the present invention to achieve the above object is related to the wall structure of a highly transparent bottle made of biaxially stretch blow-molded PET, and the two wall portions are connected via a bending line. The bending line connecting the two wall portions is such that the connecting edge of one of the two wall portions, the first wall portion, to the other, the second wall portion, is the second wall portion. It has a structure that is slightly extended to the side, and the connection Qr of the extended first wall part is reversed with a small radius of curvature between the edge and the connecting edge of the opposing first wall part. It is to connect at the ridge wall part.
稜線壁部分で接続される第一壁面部分と第二璧面部分と
は、個々の壁構造および相互の壁構造の組合せが特定さ
れることはないが、少なくとも一方の壁面部分を平坦壁
面構造とするのが良く、特に第一壁面部分を平坦壁構造
とし、第二壁面部分を湾曲壁構造とするのが良い。For the first wall portion and the second wall portion connected by the ridge wall portion, individual wall structures and mutual wall structure combinations are not specified, but at least one wall portion has a flat wall structure. In particular, it is preferable that the first wall portion has a flat wall structure and the second wall portion has a curved wall structure.
第一壁面部分の接続端縁をそのままわずかに延長し、こ
の延長された第一壁面部分の接続端縁に第二壁而部分の
接続端縁を稜線壁部分で接続するので、両壁面部分間に
形成される屈曲線、すなわち稜線部分は第一壁面部分の
接続端縁の延長方向に突出した突出稜線を形成すること
になる。The connecting edge of the first wall part is slightly extended as it is, and the connecting edge of the second wall part is connected to the extended connecting edge of the first wall part at the ridge wall part, so there is a gap between the two wall parts. The bent line formed in the first wall portion, that is, the ridge line portion forms a protruding ridge line that protrudes in the extension direction of the connecting edge of the first wall portion.
この突出稜線部分は、通常の稜線部分に比べてシャープ
に突出することになり、このためこの突出稜線を境にし
てその傾斜角度が異なる両壁面部分におりる透過光線の
屈折方向の違いが強調される。This protruding ridgeline part protrudes sharply compared to the normal ridgeline part, and therefore, the difference in the refraction direction of the transmitted light rays that fall on the two wall parts whose inclination angles differ from this protruding ridgeline as a border is emphasized. be done.
また、突出稜線の稜線壁部分は、小さい曲率で湾曲反転
しているので、両壁面部分の厚め方向に通過する透過光
線に対してほぼ起立した姿勢に位置することになり、こ
のため稜線壁部分は透過光線に対して局部的に大きな壁
厚部分を提供することになる。このように、稜線壁部分
は透過光線に対して局部的な大壁厚部分を提｛Ｊｔする
ので、この稜線壁部分を通過する透過光線は、隣接する
他の部分、すなわち両壁面部分を通過する透過光線に比
べてはるかに大きな屈折を受けることになる。In addition, since the ridge wall portion of the protruding ridge line is curved inverted with a small curvature, it is positioned in an almost upright posture with respect to the transmitted light that passes in the thicker direction of both wall surface portions, so that the ridge wall portion will provide a locally large wall thickness for the transmitted light. In this way, since the ridge wall portion presents a locally large wall thickness portion {Jt for the transmitted light beam, the transmitted light beam passing through this ridge wall portion passes through other adjacent portions, that is, both wall surface portions. The transmitted light will undergo much greater refraction than the transmitted light.
隣接する画壁面部分の内、一方の壁面部分が平坦壁構造
で有る場合、特に第一壁面部分が平坦壁構造で第二壁面
部分が湾曲壁構造である場合は、小さい寸法範囲内で突
出稜線の突出量を大きくできるので透過光線に対するよ
り大きな屈折作用を得ることができると共に、稜線壁部
分の湾曲反転の曲率半径をわずかながら大きくてきるの
で、その成形が容易となる。If one of the adjacent picture wall parts has a flat wall structure, especially if the first wall part has a flat wall structure and the second wall part has a curved wall structure, the protruding ridge line may be formed within a small dimension range. Since the amount of protrusion can be increased, a larger refraction effect on transmitted light can be obtained, and the radius of curvature of the curved inversion of the ridge wall portion can be slightly increased, making it easier to mold.
［実施例〕
以下、本発明の一実施例を、図面を参照しながら説明す
る。[Example] An example of the present invention will be described below with reference to the drawings.
第１図は、本発明をＰＦ．Ｔ製犬型２輔延伸ブロー成形
壜休（１．！ｌＭ２）に実施した例を示す正面図で、壜
体１は、下端に底部１０を連設した四角筒形状の胴部７
の」二端にテーパ筒状の肩部６を介して口部５を起立連
設して構成され、胴部７のほほ中央には耐内圧性を高め
るための中央周溝８が凹設されており、この中央周溝８
により上下に分割された胴部７の各壁部分には、変形に
より壜体１内に発生した負圧を変形吸収するための変形
パネル壁９がそれぞれ形成されている。FIG. 1 shows the present invention in PF. This is a front view showing an example of a T-made dog-shaped two-piece stretch-blow molded bottle (1.!lM2), in which the bottle 1 has a rectangular cylindrical body 7 with a bottom 10 connected to the lower end.
A mouth part 5 is connected upright to two ends of the body part 7 via a tapered cylindrical shoulder part 6, and a central circumferential groove 8 is recessed in the center of the cheek of the body part 7 to increase internal pressure resistance. This central circumferential groove 8
A deformable panel wall 9 for deforming and absorbing the negative pressure generated within the bottle 1 due to deformation is formed on each wall portion of the body 7 divided into upper and lower parts.
本発明による壁構造は、この壜体１の肩部６と底部１０
とに施されており、肩部６の場合は、口部５下端に連続
してテーパー円筒状壁部分が第二壁面部分３を構成し、
この第二壁面部分３の下端部分をほぼ八等分する形態で
斜めに平坦に切り取って位置する平坦壁部分が第一壁面
部分２を構成しており、また底部１０の場合（Ｊ、第２
図および第３図に示すように、上方に拡がったテーパー
円筒状壁部分である底部１０の周璧が第二壁面部分３を
構成し、この第二璧面部分３の上半部分を胴部７の平坦
壁部分に連続して斜めに平坦に切り取って位置する平坦
壁部分が第一壁面部分２を構成していこの本発明による
壁構造の具体例を、第２図に示した底部１０への実施例
における■−■線に沿って切断矢視した断面図として第
４図に示し、この第４図の特に突出稜線４部分の拡大図
を第５図に示す。The wall structure according to the invention includes the shoulder 6 and bottom 10 of the bottle 1.
In the case of the shoulder part 6, a tapered cylindrical wall part continuous to the lower end of the mouth part 5 constitutes the second wall part 3,
A flat wall portion cut diagonally and flatly into approximately eight equal parts of the lower end portion of the second wall portion 3 constitutes the first wall portion 2, and in the case of the bottom portion 10 (J, second
As shown in FIG. 3 and FIG. 3, the circumference of the bottom part 10, which is a tapered cylindrical wall part expanding upward, constitutes a second wall part 3, and the upper half part of this second wall part 3 is used as a body part. A flat wall portion which is continuous with the flat wall portion 7 and is cut obliquely and flatly constitutes the first wall portion 2. A specific example of the wall structure according to the present invention is shown in the bottom portion 10 shown in FIG. FIG. 4 is a cross-sectional view taken along the line ■--■ in this embodiment, and FIG. 5 is an enlarged view of the protruding ridge line 4 in FIG. 4.
第５図に実線図示した木発明の壁構造の突出稜線４部分
の壁構造と、二点鎖線で示した従来の稜線部分の壁構造
とを比較すると明らかなように、本発明の場合は、その
突出稜線４の突出量が従来の稜線構造に比べてはるかに
大きく、また突出稜線４を構成する稜線壁部分４ａは小
さい曲率て反転湾曲しているために、その一部を起立し
たリブ壁片状に位置させることになる。As is clear from comparing the wall structure of the four protruding ridge lines of the wall structure of the wooden invention shown in solid lines in FIG. 5 with the wall structure of the conventional ridge line part shown by the two-dot chain line, in the case of the present invention, The amount of protrusion of the protruding ridgeline 4 is much larger than that of the conventional ridgeline structure, and the ridgeline wall portion 4a constituting the protruding ridgeline 4 is reversely curved with a small curvature. It will be placed in pieces.
本発明は上記した＋１１１成となっているので、以下に
示す効果を奏する。Since the present invention has the above-mentioned +111 configuration, it produces the following effects.
第一壁面部分と第二壁面部分との境界部分てある突出稜
線の突出量が大きいので、この突出稜線部分が形成する
角部がシャープに観察されることになり、これにより両
壁面部分間の透過光線の屈折程度の差力弓１周され、発
揮されるクリスタル効果が強調される。Since the amount of protrusion of the protruding ridgeline at the boundary between the first wall part and the second wall part is large, the corner formed by this protruding ridgeline part can be observed sharply. The crystal effect is emphasized by making one rotation of the bow with a difference of the same degree as the refraction of the transmitted light.
突出稜線の湾曲反転した稜線壁部分の一部が、両壁面部
分に対して起立したリブ壁片状に位置することになるの
で、このリブ壁片状に位置した稜線壁部分は通過する透
過光線に対して肉厚部分を提供することになり、これに
より透過光線に対して充分な屈折を与えることができ、
もってより顕著なクリスタル効果を発揮することになる
。A part of the ridge wall part where the curvature of the protruding ridge line has been reversed is located in the shape of a rib wall piece that stands up against both wall surface parts, so the ridge wall part located in the shape of this rib wall piece is difficult for transmitted light to pass through. This provides a thick wall for the lens, which provides sufficient refraction for the transmitted light.
This will result in a more pronounced crystal effect.
突出稜線は、第−壁面部分の接続端縁をわずかに延長し
、この延長された接続端縁を湾曲反転した稜線壁部分で
第二壁部分の接続端縁に接続するだりであるので、新設
および既設の成形金型を問わず、簡単にかつ精度良く実
施することかでき、またその成形操作も従来通りで良い
。The protruding ridgeline is created by slightly extending the connecting edge of the second wall portion and connecting this extended connecting edge to the connecting edge of the second wall portion with the curved and inverted ridgeline wall portion. It can be carried out simply and with high precision regardless of the existing molding mold, and the molding operation can be carried out as usual.
第１図は、本発明の一実施例を肩部と底部とに実施した
ＰＥＴ製大型２軸延伸ブロー成形壜体を示す正面図であ
る。
第２図は、第１図に示した壜体の底部の拡大正面図であ
る。
第３図は、第１図に示したＩｌｉｊＴｈ体の底部の底面
図である。
第４図は、第２図中、■−■線に沿って切断矢視した壁
の断面図である。
第５図は、第４図に示した断面図の突出稜線部分の拡大
図である。
符号の説明
１；壜体、２；第一壁面部分、３；第二壁面部分、４；
突出稜線、４ａ：稜線壁部分、５：口部、６肩部、７：
胴部、８；中央周溝、９；変形パネル壁、１０；底部。
出願人 株式会社 吉 野 工 業 所＝１０FIG. 1 is a front view showing a large-sized biaxially stretched blow-molded bottle made of PET in which an embodiment of the present invention is applied to the shoulder and bottom portions. FIG. 2 is an enlarged front view of the bottom of the bottle shown in FIG. 1. FIG. 3 is a bottom view of the bottom of the IlijTh body shown in FIG. FIG. 4 is a sectional view of the wall taken along the line ■-■ in FIG. 2. FIG. 5 is an enlarged view of the protruding ridgeline portion of the cross-sectional view shown in FIG. 4. Explanation of symbols 1; Bottle, 2; First wall portion, 3; Second wall portion, 4;
Projecting ridgeline, 4a: ridgeline wall portion, 5: mouth portion, 6 shoulder portion, 7:
Body, 8; central circumferential groove, 9; deformed panel wall, 10; bottom. Applicant Yoshino Kogyo Co., Ltd. = 10
Claims (3)
レート樹脂製の透明度の高い壜体において、屈曲線を介
して接続される二つの壁面部分の内の第一壁面部分（２
）の第二壁面部分（３）への接続端縁を、前記第二壁面
部分（３）側にわずかに延長し、該延長された第一壁面
部分（２）の接続端縁を第二壁面部分（３）の接続端縁
に小さな曲率半径で湾曲反転した稜線壁部分（４ａ）を
介して接続して成る合成樹脂製壜体の壁構造。(1) In a highly transparent bottle made of biaxially stretch blow-molded polyethylene terephthalate resin, the first wall part (2
) to the second wall portion (3) is slightly extended toward the second wall portion (3), and the extended connecting edge of the first wall portion (2) is connected to the second wall portion (3). The wall structure of a synthetic resin bottle is connected to the connecting edge of the portion (3) via a ridge wall portion (4a) which is curved inverted with a small radius of curvature.
した請求項１記載の合成樹脂製壜体の壁構造。(2) The wall structure of a synthetic resin bottle according to claim 1, wherein one of the both wall portions (2) and (3) has a flat wall structure.
部分（３）を湾曲壁構造とした請求項１記載の合成樹脂
製壜体の壁構造。(3) The wall structure of a synthetic resin bottle according to claim 1, wherein the first wall portion (2) has a flat wall structure and the second wall portion (3) has a curved wall structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5108289A JP2727519B2 (en) | 1989-03-03 | 1989-03-03 | Wall structure of synthetic resin bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5108289A JP2727519B2 (en) | 1989-03-03 | 1989-03-03 | Wall structure of synthetic resin bottle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02233342A true JPH02233342A (en) | 1990-09-14 |
| JP2727519B2 JP2727519B2 (en) | 1998-03-11 |
Family
ID=12876895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5108289A Expired - Fee Related JP2727519B2 (en) | 1989-03-03 | 1989-03-03 | Wall structure of synthetic resin bottle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2727519B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008030817A (en) * | 2006-07-31 | 2008-02-14 | Yoshino Kogyosho Co Ltd | Synthetic resin bottle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55179110U (en) * | 1979-06-11 | 1980-12-23 | ||
| JPS61117109U (en) * | 1984-09-06 | 1986-07-24 | ||
| JPS6252035A (en) * | 1985-07-30 | 1987-03-06 | 株式会社吉野工業所 | Vessel with recessed panel to which rib is formed |
| JPS6252035U (en) * | 1985-09-20 | 1987-03-31 | ||
| JPS649146A (en) * | 1987-06-30 | 1989-01-12 | Dainippon Printing Co Ltd | Heat resistant bottle for hot filling |
-
1989
- 1989-03-03 JP JP5108289A patent/JP2727519B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55179110U (en) * | 1979-06-11 | 1980-12-23 | ||
| JPS61117109U (en) * | 1984-09-06 | 1986-07-24 | ||
| JPS6252035A (en) * | 1985-07-30 | 1987-03-06 | 株式会社吉野工業所 | Vessel with recessed panel to which rib is formed |
| JPS6252035U (en) * | 1985-09-20 | 1987-03-31 | ||
| JPS649146A (en) * | 1987-06-30 | 1989-01-12 | Dainippon Printing Co Ltd | Heat resistant bottle for hot filling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008030817A (en) * | 2006-07-31 | 2008-02-14 | Yoshino Kogyosho Co Ltd | Synthetic resin bottle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2727519B2 (en) | 1998-03-11 |
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