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JP6671896B2 - Synthetic resin bottle - Google Patents

Synthetic resin bottle
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JP6671896B2
JP6671896B2JP2015173840AJP2015173840AJP6671896B2JP 6671896 B2JP6671896 B2JP 6671896B2JP 2015173840 AJP2015173840 AJP 2015173840AJP 2015173840 AJP2015173840 AJP 2015173840AJP 6671896 B2JP6671896 B2JP 6671896B2
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partition frame
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武雄 秋山
武雄 秋山
正芳 西本
正芳 西本
晃 光田
晃 光田
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パイオニア工業株式会社
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Translated fromJapanese

本発明は、高温の充填物がボトル内に注入された際の陽圧を吸収し、かつ、その充填物が冷却されボトル内が減圧状態となった際に、減圧を吸収し、ボトルの異常変形等を防止するための圧吸収パネルを備えた合成樹脂製ボトルに関する。  The present invention absorbs a positive pressure when a high-temperature filling is injected into a bottle, and absorbs a reduced pressure when the filling is cooled and the inside of the bottle is depressurized, thereby causing an abnormality in the bottle. The present invention relates to a synthetic resin bottle provided with a pressure absorbing panel for preventing deformation and the like.

ポリエチレンテレフタレート樹脂を利用した合成樹脂製ボトル、いわゆるペットボトルは、軽量で、かつ、適切な強度を備えているため、飲料や調味料等の包装用容器として広く利用されている。このような合成樹脂製ボトルにあっては、高温の飲料等の充填物をボトル内に注入し密封するため、ボトル内が陽圧状態となる。また、時間経過よる充填物の温度低下によってボトル内が減圧状態となる。こういったボトル内の圧力の変化に対応するため、従来から減圧吸収パネルを備えた合成樹脂製ボトルが数多く提案されている。  BACKGROUND ART Synthetic resin bottles using polyethylene terephthalate resin, so-called PET bottles, are lightweight and have appropriate strength, and thus are widely used as containers for packaging beverages and seasonings. In such a synthetic resin bottle, the inside of the bottle is in a positive pressure state because a filler such as a high-temperature beverage is injected into the bottle and sealed. In addition, the inside of the bottle is decompressed due to a decrease in the temperature of the filler over time. In order to cope with such a change in the pressure in the bottle, many synthetic resin bottles having a reduced-pressure absorption panel have been proposed.

すなわち、特許文献1に示すように、従来の合成樹脂製ボトルは、ボトル最上部に充填物を出し入れする口部を有し、当該口部から下方へ順に、肩部と、ラベル等を貼り付けするための上方ボトル胴部と、くびれ部と、複数の減圧吸収パネルをボトル周方向に略等間隔に配置した下方ボトル胴部と、底部とを備える。  That is, as shown in Patent Literature 1, a conventional synthetic resin bottle has a mouth at the top of the bottle for taking in and out the filling material, and a shoulder, a label, and the like are attached in order from the mouth to the bottom. An upper bottle body, a constricted portion, a lower bottle body in which a plurality of reduced-pressure absorbing panels are arranged at substantially equal intervals in the bottle circumferential direction, and a bottom portion.

ボトル内が陽圧時においては当該減圧吸収パネルが膨出し、充填物の冷却によりボトル内部が減圧状態となった際には、当該減圧吸収パネルがボトルの内部側に凹状態となることにより、ボトル内部の減圧を吸収しボトルの形状異常を防ぐ。  When the inside of the bottle is at a positive pressure, the decompression absorption panel swells, and when the inside of the bottle is decompressed by cooling of the filling material, the decompression absorption panel is recessed toward the inside of the bottle, Absorbs decompression inside the bottle and prevents abnormal shape of the bottle.

特開2008−7132JP 2008-7132A

この減圧吸収パネルはボトル胴部表面に対し、上述のとおり、陽圧時においては膨出状態となり、減圧時においては凹状態となることにより、減圧吸収性能を高めることができる。一方で、減圧吸収パネルの可動域を広くすると、陽圧時の膨出状態が保持され易くなり、減圧時においても凹状態に戻らず、ボトルの形状異常による外観不良が発生してしまう場合がある。  As described above, the reduced-pressure absorbing panel is in a swelling state at the time of positive pressure and is in a concave state at the time of depressurizing with respect to the surface of the bottle body, thereby improving the reduced-pressure absorbing performance. On the other hand, if the movable range of the decompression absorption panel is widened, the swelling state at the time of positive pressure becomes easy to be maintained, and it does not return to the concave state even at the time of decompression, and appearance failure due to abnormal bottle shape may occur. is there.

本発明は、上記課題に鑑みてなされたものであり、以下の特徴を備える合成樹脂製ボトルである。
(1)ボトル内の減圧を吸収する減圧吸収パネルを備えた合成樹脂製ボトルにおいて、前記減圧吸収パネルは、前記減圧吸収パネル上であって前記減圧吸収パネルと他の部分とを区画する区画枠よりボトル水平方向外側にその頂点が位置するように形成される膨部と、前記区画枠よりボトル水平方向内側であって前記減圧吸収パネルの略中央に形成される中央面と、前記膨部と前記中央面とを連結する連結面とからなり、
前記膨部は、前記区画枠の全周に沿って位置していて、
前記減圧吸収パネルの角部近傍における膨部の幅を、前記角部近傍の他の部分における前記膨部の幅より狭くして、前記中央面が前記角部に向けて延設され、
前記区画枠の上下辺部分に沿う膨部の中央部分のボトル上下方向での幅と区画枠の左右辺部分に沿う膨部の中央部分のボトル胴部周方向での幅とを、前記角部近傍における膨部の幅より大として、前記区画枠の上下辺部分に沿う膨部の中央部分と区画枠の左右辺部分に沿う膨部の中央部分とが、減圧吸収パネルの中心側に向けて張り出る形状とされていることを特徴とする。
(2)ポリエチレンテレフタレート樹脂製であって、口部、肩部、上方胴部、くびれ部、下方胴部、底部を有し、高さ240〜280mmのうち前記下方胴部の高さがボトルの高さの30〜45%であり、前記下方胴部に6個の前記減圧吸収パネルを周状に略等間隔に形成したことを特徴とする。
The present invention has been made in view of the above problems, and is a synthetic resin bottle having the following features.
(1) In a synthetic resin bottle provided with a decompression absorption panel that absorbs decompression inside the bottle, the decompression absorption panel isa partition frame on the decompression absorption panel that divides the decompression absorption panel from other portions. A swollen portion formed so that its apex is located more outside the bottle in thehorizontal direction, a central surface formed inward of the compartment frame in the bottle horizontal direction and substantially at the center of the decompression absorption panel, and the swollen portion. And a connecting surface connecting the central surface,
The bulging portion is located along the entire circumference of the partition frame,
The width of the bulge in the vicinity of the corner of the decompression absorption panel is narrower than the width of the bulge in the other part near the corner, and the central surface is extended toward the corner,
The width of the central portion of the bulge along the upper and lower sides of the partition frame in the vertical direction of the bottle and the width of the central portion of the bulge along the left and right sides of the partition frame in the circumferential direction of the bottle body are defined by the corners Assuming that the width is larger than the width of the bulging portion in the vicinity, the central portion of the bulging portion along the upper and lower sides of the partition frame and the central portion of the bulge along the left and right sides of the partition frame are directed toward the center of the decompression absorption panel. It is characterizedby having a protruding shape .
(2) It is made of polyethylene terephthalate resin, and has a mouth, a shoulder, an upper body, a constriction, a lower body, and a bottom, and the height of the lower body is 240 to 280 mm, and The height is 30 to 45% of the height, and the six lower pressure absorption panels are formed on the lower body at substantially equal intervals around the circumference.

本発明によれば、減圧吸収パネル上に減圧吸収パネルとボトル胴部との境界に沿うように形成されるボトル外側に膨出する膨部を設けているので、ボトル内が陽圧状態になった際、当該膨部が膨らみしろとなって、当該減圧吸収パネルがボトル外側に膨出しやすくなる一方で、中央面を当該膨部よりボトル内側に設けることにより、当該減圧吸収パネルが減圧時に凹状態に戻り易くなるため、ボトルの形状不良を防ぐことができる。  According to the present invention, since the swelling portion bulging out of the bottle is formed on the decompression absorption panel along the boundary between the decompression absorption panel and the bottle body, so that the inside of the bottle is in a positive pressure state. In this case, the swelling portion becomes a bulge, and the decompression absorption panel easily swells to the outside of the bottle. Since it is easy to return to the state, it is possible to prevent a bottle shape defect.

また、減圧吸収パネルの四隅(角部)付近における膨部の幅を狭くするので、その分、陽圧時における角部における膨出を抑えることができ、膨出よる形状保持が生じやすい角部における形状不良の発生を抑えることができる。  Also, since the width of the bulge near the four corners (corners) of the decompression absorption panel is narrowed, bulge at the corners at the time of positive pressure can be suppressed by that much, and the corners where the bulging tends to maintain the shape are generated. Can be prevented from occurring.

本発明に係る合成樹脂製ボトルの正面図である。1 is a front view of a synthetic resin bottle according to the present invention.減圧吸収部の拡大図である。It is an enlarged view of a reduced pressure absorption part.図2におけるA−A断面であって減圧吸収パネル部分の拡大断面図である。FIG. 3 is an enlarged cross-sectional view taken along the line AA in FIG. 2 and illustrating a reduced pressure absorption panel portion.図2におけるB−B断面であって減圧吸収パネル部分の拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a reduced-pressure absorption panel portion, which is a BB cross section in FIG. 2.

以下、本発明の実施例1について図面を参照しつつ、飲料や各種調味料用のボトルとして一般的な内容量を1リットルとするボトルを例に説明する。図1に示すように、ボトル1は、ボトル1内に調味料等の充填物を出し入れするための口部11と、口部11から上方胴部12へつながる肩部16と、ラベル等を貼り付けするための上方胴部12と、上方胴部12と下方胴部14との境界に環状に形成されるくびれ13と、後述する減圧吸収パネル14が複数配置される下方胴部14と、底部15とからなる。以下、この図1における位置関係および方向に基づいて説明する。
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings, taking as an example a bottle having a general content of 1 liter as a bottle for beverages and various seasonings. As shown in FIG. 1, the bottle 1 has amouth 11 for taking in and out a filler such as a seasoning into the bottle 1, ashoulder 16 connecting themouth 11 to theupper body 12, and a label or the like. anupper body portion 12 for attaching aneckportion 13 which is formed annularly on the boundary between theupper body portion 12 and alower barrel section 14, alower body portion 14 whichvacuum panels 140 are more disposed to be described later ,Bottom 15. Hereinafter, a description will be given based on the positional relationship and the direction in FIG.

上方胴部12は、上方胴部表面121と上方胴部表面121を上下方向に略等間隔に区分けするように形成されるものであって水平に環状に形成される環状溝122とからなる。この環状溝122の深さおよび間隔の長さは、ボトルの形状や大きさに基づいて適宜設定してよいが、深さ「0.5mm〜3mm」、間隔は「8mm〜30mm」の範囲で定めるとよい。  Theupper torso portion 12 is formed so as to divide theupper torso surface 121 and theupper torso surface 121 at substantially equal intervals in the vertical direction, and includes anannular groove 122 that is formed horizontally and annularly. The depth of theannular groove 122 and the length of the interval may be appropriately set based on the shape and size of the bottle, but the depth is in the range of “0.5 mm to 3 mm” and the interval is in the range of “8 mm to 30 mm”. It is good to decide.

上方胴部12は、通常、商品の商品名等を消費者に示すためのプラスチックフィルム等によるラベルが付される部分であり、使用者がボトル1を使用する際に握ることが多い部分である。環状溝122が形成されることにより、ラベルの貼り付け作業や使用者が握った際にボトル1が受ける外圧に対する補強となるため、ボトル1の変形を防止することができる。また、ボトル1に高温の充填物を注入し密閉した際におけるボトル1内部の陽圧に対する抵抗にもなるので、この場合においてもボトル1の変形を防ぐことができる。この上方胴部12は、前記理由により所定長さが必要であるが、近年、商品アピール等、ボトルデザイン的な要素もあいまってボトル全体に占める長さがより長い(大きい)形状が求められている。  Theupper body portion 12 is a portion to which a label such as a plastic film is usually attached to indicate a product name or the like of a product to a consumer, and is a portion that a user often grips when using the bottle 1. . The formation of theannular groove 122 serves to reinforce the external pressure applied to the bottle 1 when the label is attached or when the user grips the label, so that the deformation of the bottle 1 can be prevented. In addition, when the bottle 1 is filled with a high-temperature filling material and sealed, the bottle 1 also becomes resistant to the positive pressure inside the bottle 1, so that the deformation of the bottle 1 can be prevented in this case as well. Theupper body portion 12 needs a predetermined length for the above-mentioned reason, but in recent years, a longer (larger) shape occupying the entire length of the bottle has been demanded due to factors such as product appeal and bottle design. I have.

それに対し、下方胴部14は、前記上方胴部12が長くなった分、相対的に軸方向で短く形成されるようになり、長さが上方胴部の長さよりも短い形状になり、ボトルの内容量は変わらないため、発生する減圧はより狭い部分で吸収しなければならなくなった。本発明の1リットルボトルにおいては、ボトル全高が約260mmであって、上方胴部12の軸方向の長さが約102mmであるのに対し、減圧吸収パネルを形成する下方胴部14は約90mm(ボトル全高の約35%)と相対的に小さく、この小さい下方胴部で従来形状と同様の減圧を吸収することが求められている。  On the other hand, thelower torso portion 14 is formed to be relatively shorter in the axial direction by the length of theupper torso portion 12, and the length is shorter than the length of the upper torso portion. Since the content of the 減 圧 does not change, the decompression generated has to be absorbed in a narrower portion. In the one-liter bottle of the present invention, the total height of the bottle is about 260 mm, and the length of theupper body 12 in the axial direction is about 102 mm, whereas thelower body 14 forming the vacuum absorption panel is about 90 mm. (About 35% of the total height of the bottle), and it is required that this small lower body absorb the same reduced pressure as in the conventional shape.

本発明に係る当該下方胴部14に形成される減圧吸収パネル140は、図2乃至図4に示すとおり、減圧吸収パネル140とその他の部分とを区画する区画枠141と、区画枠141に隣接するように形成されるボトル水平方向外側にやや張り出すように形成される膨部142と、当該膨部142と減圧吸収パネル140の略中央に位置する中央面145とを連結する連結面143とからなる。そして、図示されているように前記膨部142は、区画枠141の全周に沿って位置している。
As shown in FIGS. 2 to 4, thedecompression absorption panel 140 formed on thelower body 14 according to the present invention includes adivision frame 141 that divides thedecompression absorption panel 140 and other parts, and is adjacent to thedivision frame 141. Aswelling portion 142 formed so as to slightly protrude outward in the horizontal direction of the bottle, and aconnection surface 143 connecting theswelling portion 142 and acentral surface 145 located substantially at the center of the reduced-pressure absorption panel 140. Consists ofAs shown, thebulging portion 142 is located along the entire circumference of thepartition frame 141.

図3および図4に示すように、膨部142の頂点Tは、区画枠141よりボトル外側に突出するように形成される。このように、減圧吸収パネル140は、その区画枠141から中央面145に向かって一旦ボトル外側に張り出してから連結面143および中央面145に至る形状となる。  As shown in FIGS. 3 and 4, a vertex T of the bulgingportion 142 is formed so as to protrude outside the bottle from thepartition frame 141. As described above, the reduced-pressure absorption panel 140 has a shape that once protrudes outward from thepartition frame 141 toward thecenter surface 145 and then reaches theconnection surface 143 and thecenter surface 145.

当該膨部142がなすボトル外側に張り出す形状により、陽圧吸収性能をより向上させることができる。すなわち、ボトル1内に高温の充填物が注入密封され、ボトル1内が陽圧状態となった場合、減圧吸収パネル140はその区画枠141を起点にボトル外側に膨出する。この際、膨部142が減圧吸収パネル140の膨出のための余地となるため、減圧吸収パネル140のボトル1外側への膨出量が増加するため、陽圧吸収性能を高めることができる。  The shape of the bulgingportion 142 protruding outside the bottle can further improve the positive pressure absorbing performance. That is, when the high-temperature filling material is injected and sealed in the bottle 1 and the inside of the bottle 1 is in a positive pressure state, the reduced-pressure absorption panel 140 swells outward from thepartition frame 141 as a starting point. At this time, since theswelling portion 142 provides room for the swelling of the reduced-pressure absorption panel 140, the swelling amount of the reduced-pressure absorption panel 140 to the outside of the bottle 1 increases, so that the positive pressure absorbing performance can be improved.

また、膨部142により減圧吸収パネル140の区画枠141を起点とする膨出に伴う減圧吸収パネル140の可動角度が抑えられる。これにより、陽圧時に膨出した減圧吸収パネル140が、減圧時に元の形状に戻りやすいため、陽圧時の形状を保持してしまい元の形状に戻らないといった不具合を起こりにくくすることができる。  In addition, theswelling portion 142 suppresses the movable angle of thedecompression absorption panel 140 accompanying the swelling from thepartition frame 141 of thedecompression absorption panel 140 as a starting point. Thus, the reduced-pressure absorbing panel 140 swelled at the time of positive pressure easily returns to the original shape at the time of depressurization, so that a problem that the shape at the time of positive pressure is maintained and the shape does not return to the original shape can be less likely to occur. .

減圧吸収パネル140の中央面145は、区画枠141よりもボトル水平方向内側に設けられる。中央面145と膨部142とを連結する連結面143は平面であってもよいし、ボトル外側にやや膨出させた球面状であってもよい。  Thecentral surface 145 of thedecompression absorption panel 140 is provided on the inner side in the bottle horizontal direction than thepartition frame 141. The connectingsurface 143 connecting thecentral surface 145 and the bulgingportion 142 may be a flat surface or a spherical shape slightly bulging outside the bottle.

以上のように、減圧吸収パネル140における各部の位置関係においては、最もボトル水平方向外側に位置するのが、膨部142の頂点Tであり、最もボトル水平方向内側に位置するのが中央面145である。これにより、膨部の142の頂点Tから中央面145に至るまでの連結面143等を含む部材を十分にとることができるので、陽圧および減圧時における減圧吸収パネル140の可動幅を十分にとることでき、陽圧および減圧吸収性能を高めることができる。  As described above, in the positional relationship between the components of the reduced-pressure absorption panel 140, the vertex T of the bulgingportion 142 is located most outward in the horizontal direction of the bottle, and thecenter surface 145 is located most inward in the horizontal direction of the bottle. It is. Accordingly, a sufficient member including theconnection surface 143 from the vertex T of the bulgingportion 142 to thecentral surface 145 can be sufficiently provided, and the movable width of the reduced-pressure absorbing panel 140 at the time of positive pressure and reduced pressure can be sufficiently increased. The positive pressure and reduced pressure absorption performance can be improved.

また、このように、中央面145の位置を最もボトル水平方向内側に設けるため、減圧時に陽圧による膨出前の元の形状に戻りやすくなる。また、減圧時において、ボトル水平方向外側に張り出させた膨部142がボトル内側に引き込まれることにより、当該膨部142だけでも減圧吸収に役立つ。  In addition, since the position of thecenter surface 145 is provided at the innermost position in the horizontal direction of the bottle, it is easy to return to the original shape before swelling due to positive pressure when the pressure is reduced. In addition, at the time of decompression, theswelling portion 142 protruding outward in the horizontal direction of the bottle is drawn into the inside of the bottle, so that only theswelling portion 142 serves to absorb reduced pressure.

ここで、略長方形の減圧吸収パネル140にあっては、特にその角部146付近において、陽圧時の膨出した形状が保持されてしまい、減圧状態になっても戻らないという形状不良が生じやすい。そこで、減圧吸収パネル140の角付近に膨部142を小さくすることにより、減圧吸収パネル140の角部146付近における陽圧時の膨出量を抑えることにより、形状不良の発生を防ぐ。
Here, in the case of the substantially rectangulardecompression absorption panel 140, a swelling shape at the time of positive pressure is maintained particularly in the vicinity of thecorner portion 146, and a shape defect that does not return even in the decompression state occurs. Cheap. Therefore, by reducing the膨部142 near the corners of thevacuum panels 140, by suppressing the inflated amount of positive pressure time near thecorners 146 of thevacuum panels 140, proofdevice the occurrence of shapedefect.

具体的には、図2に示したように、減圧吸収パネル140の四隅の各角部146の付近においては、膨出部142をその他の部分における幅より小さく設ける。また、中央面145を角部146に向けて延設する。
Specifically, as shown in FIG. 2, in the vicinity of each of the fourcorners 146 of thedecompression absorption panel 140, the bulgingportion 142 is provided to be smaller than the width of the other portions. Also,it extends toward thecentral plane 145 at thecorners146.

そして、中央面145と連結面143とが成す中央区画144を、減圧吸収パネル140の中心方向に円弧状に張り出す形状とする。さらに図2に示されているように、区画枠141の上下辺部分に沿う膨部142の中央部分のボトル上下方向での幅と区画枠141の左右辺部分に沿う膨部142の中央部分のボトル胴部周方向での幅とを、上記角部146近傍における膨部142の幅より大として、前記区画枠141の上下辺部分に沿う膨部142の中央部分と区画枠141の左右辺部分に沿う膨部142の中央部分とを、減圧吸収パネル140の中心側に向けて張り出る形状としている。これにより、減圧吸収パネル140の角部146付近以外の部分については、膨部142を十分に設けることにより適切な陽圧および減圧吸収性能を維持しながら、角部146においては膨出を抑え、かつ減圧時に角部146の形状を戻りやすくすることができる。Then , thecentral section 144 formed by thecentral surface 145 and theconnection surface 143 is formed to protrude in an arc shape toward the center of the reduced-pressure absorption panel 140.Further, as shown in FIG. 2, the width of the central portion of the bulgingportion 142 along the upper and lower sides of thepartition frame 141 in the bottle vertical direction and the width of the central portion of the bulgingportion 142 along the left and right sides of thepartition frame 141. The width of the bottle body in the circumferential direction is larger than the width of the bulgingportion 142 in the vicinity of thecorner 146, and the central portion of the bulgingportion 142 along the upper and lower sides of thepartitioning frame 141 and the left and right sides of thepartitioning frame 141 And a central portion of the bulgingportion 142 along the center line is formed so as to protrude toward the center of the reduced-pressure absorbing panel 140. As a result, with respect to portions other than the vicinity of thecorner 146 of the reduced-pressure absorption panel 140, the swelling is suppressed at thecorner 146 while maintaining appropriate positive pressure and reduced pressure absorption performance by providing the expandedportion 142 sufficiently. In addition, the shape of thecorner portion 146 can be easily returned when the pressure is reduced.

本発明に係る合成樹脂製ボトルについて、そのボトル全高の約35%の高さに限定した下方胴部14に縦長の略長方形状で長さ約65mmで幅約34mmの前記構成の減圧吸収パネル140を等間隔で周状に6面形成させたものに、従来ボトルと略同量の内容物を80〜90℃の加熱条件で充填した結果、80℃充填のボトル収縮量は0.9mlで、83℃充填のボトル収縮量は3.0ml、85℃充填のボトル収縮量は6.3ml、87℃充填ではボトル収縮量10.5ml、90℃充填においては、ボトル収縮量18.2mlという結果を得た。  With respect to the synthetic resin bottle according to the present invention, thelower body 14 limited to a height of about 35% of the total height of the bottle has a vertically elongated, substantially rectangular shape, a pressure-absorbingpanel 140 having the above-described configuration having a length of about 65 mm and a width of about 34 mm. Was filled with approximately the same amount of content as a conventional bottle under heating conditions of 80 to 90 ° C., and the bottle shrinkage at 80 ° C. filling was 0.9 ml, The amount of bottle shrinkage at 83 ° C filling is 3.0 ml, the amount of bottle shrinking at 85 ° C filling is 6.3 ml, the amount of bottle shrinking at 87 ° C filling is 10.5 ml, and the amount of bottle shrinking at 90 ° C filling is 18.2 ml. Obtained.

このように、本発明に係る合成樹脂製ボトルにおいては、優れた減圧吸収効果を示しており、ボトルの形状不良もなく好適な結果を得た。  Thus, in the synthetic resin bottle according to the present invention, an excellent vacuum absorption effect was exhibited, and favorable results were obtained without a bottle shape defect.

当該減圧吸収パネル140を利用する場合にあっては、口部11と、ラベル等を貼り付けするための上方胴部12と、当該口部11と上方胴部12を連結する肩部16と、上方胴部12と、上方胴部12と下方胴部14との境界に環状に形成されるくびれ部13と、当該減圧吸収パネル140が複数配置される下方胴部14と、底部15とからなり、ボトル全高を240〜280mm、内容量を700〜1500ミリリットルとするものであって、減圧吸収パネル140を4〜8個備え、下方胴部14の高さがボトル全高の30〜45%である合成樹脂製ペットボトルの場合にあって、特に好適である。  When using thedecompression absorption panel 140, themouth 11, anupper body 12 for attaching a label or the like, ashoulder 16 connecting themouth 11 and theupper body 12, Theupper body part 12, aconstricted part 13 formed annularly at a boundary between theupper body part 12 and thelower body part 14, alower body part 14 in which a plurality of thedecompression absorption panels 140 are arranged, and abottom part 15 The total height of the bottle is 240 to 280 mm, the content is 700 to 1500 ml, thevacuum absorption panel 140 is provided with 4 to 8, and the height of thelower body 14 is 30 to 45% of the total height of the bottle. This is particularly preferable in the case of a synthetic resin PET bottle.

1 合成樹脂製ボトル
11 口部
12 上方胴部
13 くびれ部
14 下方胴部
15 底部
16 肩部
140 減圧吸収パネル
141 区画枠
142 膨部
143 連結面
144 中央区画
145 中央面
146 角部
DESCRIPTION OF SYMBOLS 1Synthetic resin bottle 11Mouth part 12Upper trunk part 13Constriction part 14Lower trunk part 15Bottom part 16Shoulder part 140Decompression absorption panel 141Partition frame 142Expansion part 143Connection surface 144Center division 145Center plane 146 Corner

Claims (2)

Translated fromJapanese
ボトル内の減圧を吸収する減圧吸収パネル(140)を備えた合成樹脂製ボトル(1)において、前記減圧吸収パネル(140)は、前記減圧吸収パネル(140)上であって前記減圧吸収パネル(140)と他の部分とを区画する区画枠(141)よりボトル水平方向外側にその頂点(T)が位置するように形成される膨部(142)と、前記区画枠(141)よりボトル水平方向内側であって前記減圧吸収パネル(140)の略中央に形成される中央面(145)と、前記膨部(142)と前記中央面(145)とを連結する連結面(143)とからなり、
前記膨部(142)は、前記区画枠(141)の全周に沿って位置していて、
前記減圧吸収パネル(140)の角部(146)近傍における膨部(142)の幅を、前記角部(146)近傍の他の部分における前記膨部(142)の幅より狭くして、前記中央面(145)が前記角部(146)に向けて延設され、
前記区画枠(141)の上下辺部分に沿う膨部(142)の中央部分のボトル上下方向での幅と区画枠(141)の左右辺部分に沿う膨部(142)の中央部分のボトル胴部周方向での幅とを、前記角部(146)近傍における膨部(142)の幅より大として、前記区画枠(141)の上下辺部分に沿う膨部(142)の中央部分と区画枠(141)の左右辺部分に沿う膨部(142)の中央部分とが、減圧吸収パネル(140)の中心側に向けて張り出る形状とされていることを特徴とする合成樹脂製ボトル。
In the synthetic resin bottle(1) having a vacuum panels(140) to absorb the reduced pressure in the bottle, the vacuum panels(140), said vacuum panels and a said vacuum panels(140) on the( 140), and a bulging portion(142) formed so that its apex(T) is located outside the bottle in thehorizontal direction ofthe partition frame(141) that separates the other portion from the partition frame(141). A central surface(145) formed inward in the direction and substantially at the center of the decompression absorption panel(140) , and a connecting surface(143) connecting the bulging portion(142) and the central surface(145). DoRi,
The bulging portion (142) is located along the entire circumference of the partition frame (141),
The width of the bulge (142) in the vicinity of the corner (146) of the decompression absorption panel (140) is made smaller than the width of the bulge (142) in the other part near the corner (146). A central surface (145) extends toward the corner (146);
The width of the central portion of the bulging portion (142) along the upper and lower sides of the partition frame (141) in the vertical direction of the bottle and the bottle body of the central portion of the bulging portion (142) along the left and right sides of the partition frame (141). The width in the circumferential direction is larger than the width of the bulge (142) in the vicinity of the corner (146), and the central part of the bulge (142) along the upper and lower sides of the partition frame (141) and the partition A synthetic resin bottle characterized in that acentral portion of a bulging portion (142) along left and right sides of a frame (141) is shaped to protrude toward a center side of a reduced-pressure absorbing panel (140) .
ポリエチレンテレフタレート樹脂製であって、口部(11)、肩部(16)、上方胴部(12)、くびれ部(13)、下方胴部(14)、底部(15)を有し、高さ240〜280mmのうち前記下方胴部(14)の高さがボトルの高さの30〜45%であり、前記下方胴部(14)に6個の前記減圧吸収パネル(140)を周状に略等間隔に形成したことを特徴とする請求項に記載の合成樹脂製ボトル。
It is made of polyethylene terephthalate resin and has a mouth part(11) , a shoulder part(16) , an upper body part(12) , a constriction part(13) , a lower body part(14) , a bottom part(15) , and a height. Of the 240 to 280 mm, the height of the lower body(14) is 30 to 45% of the height of the bottle, and the six lower pressure absorbing panels(140) are circumferentially provided on the lower body(14). The synthetic resin bottle according to claim1 , wherein the bottle is formed at substantially equal intervals.
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JP2949459B2 (en)*1993-11-051999-09-13株式会社吉野工業所 Hollow container made of polyethylene terephthalate resin
US5740934A (en)*1995-09-181998-04-21Plastic Technologies, Inc.Container with vertical stiffening in central panel
US7198164B2 (en)*2003-03-312007-04-03Graham Packaging Company, L.P.Hot-fillable container with a waisted dome
JP4749952B2 (en)*2006-06-292011-08-17株式会社吉野工業所 Bottle
JP5986733B2 (en)*2011-10-312016-09-06株式会社吉野工業所 Bottle
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