JP2016216093A - Aseptic filling bottle - Google Patents

Aseptic filling bottle Download PDF

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Publication number
JP2016216093A
JP2016216093A JP2015103127A JP2015103127A JP2016216093A JP 2016216093 A JP2016216093 A JP 2016216093A JP 2015103127 A JP2015103127 A JP 2015103127A JP 2015103127 A JP2015103127 A JP 2015103127A JP 2016216093 A JP2016216093 A JP 2016216093A
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Prior art keywords
bottle
aseptic filling
dome
concave
central portion
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JP7012417B2 (en
Inventor
立樹 加堂
Tatsuki Kado
立樹 加堂
真也 伊藤
Shinya Ito
真也 伊藤
直也 小笠原
Naoya Ogasawara
直也 小笠原
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Suntory Holdings Ltd
Suntory Beverage and Food Ltd
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Suntory Holdings Ltd
Suntory Beverage and Food Ltd
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Application filed by Suntory Holdings Ltd, Suntory Beverage and Food Ltd filed Critical Suntory Holdings Ltd
Priority to JP2015103127A priority Critical patent/JP7012417B2/en
Priority to ES16796552T priority patent/ES2798300T3/en
Priority to CN201680028788.4A priority patent/CN107709175A/en
Priority to EP16796552.4A priority patent/EP3299306B1/en
Priority to US15/574,923 priority patent/US20180162579A1/en
Priority to AU2016264086A priority patent/AU2016264086B2/en
Priority to PCT/JP2016/064848 priority patent/WO2016186159A1/en
Publication of JP2016216093A publication Critical patent/JP2016216093A/en
Publication of JP7012417B2 publication Critical patent/JP7012417B2/en
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    • 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—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, 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
    • B65D1/0284—Bottom construction having a discontinuous contact surface, e.g. discrete feet
    • 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—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, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • 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
    • B65D2501/00—Containers having bodies formed in one piece
    • B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B65D2501/0018—Ribs
    • B65D2501/0036—Hollow circonferential ribs

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

PROBLEM TO BE SOLVED: To suppress buckling of a bottom part in frozen storage in an aseptic filling bottle.SOLUTION: A bottom part (6) of an aseptic filling bottle comprises: a ground part (10) grounded to an installation surface; a center part (12) entering inside the bottle as approaching radially inward from the ground part (10); and a dome part (13) provided at a central part of the center part (12) and entering the inner side of the bottle than the center part (12). An entering height (D1) to the inside of the bottle at a dome part side peripheral edge part (12a) of the center part (12) is formed to be higher than a half (D2) of a height from the ground part (10) to a boundary of a body part and the bottom part (6).SELECTED DRAWING: Figure 4

Description

本発明は、口部と肩部と胴部と底部とを備えるアセプティック充填用ボトルに関する。   The present invention relates to an aseptic filling bottle having a mouth portion, a shoulder portion, a trunk portion, and a bottom portion.

プラスチックボトルに対する液体の充填方法として、無菌状態で液体をボトル内に充填するアセプティック（無菌）充填方法がある。このアセプティック充填方法によれば、プラスチックボトルが高温にさらされずに済む。このため、アセプティック充填方法で充填するプラスチックボトル（以下、アセプティック充填用ボトルと称する）は、耐熱性が低くてもよく、このため厚みが薄く軽量なボトルとすることができる。   As a liquid filling method for a plastic bottle, there is an aseptic filling method in which a liquid is filled into the bottle in a sterile state. According to this aseptic filling method, the plastic bottle is not exposed to high temperatures. For this reason, plastic bottles filled by the aseptic filling method (hereinafter referred to as aseptic filling bottles) may have low heat resistance, and thus can be made thin and lightweight bottles.

しかし、厚みを薄くし軽量なボトルとすると、その分強度が低下する問題がある。このため、例えば内部に炭酸飲料水を充填した場合、内部で炭酸が抜けることにより内圧が上昇して、底部が反転（バックリング）が生じるおそれがある。バックリングが生じるとボトルを自立させることができなくなるため、商品として流通させることができない。そして、この問題に対し、特開２０１２−１４０１５６号公報（特許文献１）には、底部における中央部の中心に内側に引っ込むドーム状の凹部を設けることで、底部のバックリングを抑制するボトルが提案されている。   However, if the bottle is made thin and lightweight, there is a problem that the strength is lowered accordingly. For this reason, for example, when carbonated drinking water is filled inside, the internal pressure rises due to the release of carbonic acid inside, and the bottom may be reversed (buckle). If buckling occurs, the bottle cannot be made independent and cannot be distributed as a product. And with respect to this problem, JP 2012-140156 A (Patent Document 1) discloses a bottle that suppresses buckling at the bottom by providing a dome-shaped recess that retracts inward at the center of the center at the bottom. Proposed.

特開２０１２−１４０１５６号公報JP 2012-140156 A

内容物を充填したプラスチックボトルは常温又は冷蔵して保存されるのみならず、内容物を凍結させて保存するべく、冷凍保存される場合がある。しかし、冷凍保存する場合、凍結により内容物が膨張するため、これにより底部のバックリングが生じてしまう問題がある。そして、この問題は内容液や内部の空気の膨張や収縮を設計上考慮していないアセプティック充填用ボトルにおいて顕著であり、最悪の場合、バックリングのみならずボトルが破裂することも考えられる。   The plastic bottle filled with the contents is not only stored at room temperature or refrigerated, but also may be stored frozen to store the contents frozen. However, when stored frozen, the contents expand due to freezing, which causes a problem of buckling at the bottom. This problem is remarkable in an aseptic filling bottle in which the expansion and contraction of the content liquid and the internal air are not taken into consideration in the design. In the worst case, not only buckling but also the bottle may be ruptured.

内容物の膨張により底部に加わる力は一般に炭酸抜けによる内圧の上昇により底部に加わる力よりも大きく、特許文献１のボトルでは、炭酸飲料水を充填した場合のバックリングを抑制し得る程度の強度に達していても、冷凍保存する場合の内容物の膨張によるバックリングを抑制し得る程度の強度までは達していなかった。また、特許文献１のような構造を採用した場合、デザイン性や軽量化が難しい問題もあった。このように、強度上の問題からアセプティック充填用ボトルは冷凍保存には積極的には利用されていなかった。   The force applied to the bottom due to the expansion of the contents is generally larger than the force applied to the bottom due to an increase in internal pressure due to carbonation, and the bottle of Patent Document 1 has a strength that can suppress buckling when filled with carbonated drinking water. However, the strength was not reached to such an extent that buckling due to the expansion of the contents during freezing could be suppressed. Moreover, when a structure like patent document 1 is employ | adopted, there also existed a problem that designability and weight reduction were difficult. As described above, aseptic bottles have not been actively used for frozen storage due to strength problems.

そこで、冷凍保存によっても、底部のバックリングを抑制できるアセプティック充填用ボトルの実現が望まれる。   Therefore, it is desired to realize an aseptic filling bottle that can suppress buckling at the bottom portion even by freezing.

本発明に係るアセプティック充填用ボトルは、
口部と肩部と胴部と底部とを備えるアセプティック充填用ボトルであって、
前記底部は、設置面に対して接地させる接地部と、前記接地部から径方向内側に向かうにつれてボトル内側に突入する中央部と、前記中央部における中心部に設けられた、前記中央部よりさらにボトル内側に突入するドーム部と、を有し、
前記中央部のドーム部側周縁部におけるボトル内側への突入高さが、前記接地部から前記胴部と前記底部との境界までの高さの半分より高くなる状態で形成されている。 Aseptic filling bottle according to the present invention,
An aseptic filling bottle comprising a mouth, a shoulder, a trunk and a bottom,
The bottom portion is provided on a grounding portion that is grounded with respect to an installation surface, a central portion that protrudes into the bottle as it goes radially inward from the grounding portion, and a central portion that is provided at a central portion of the central portion. A dome portion that rushes into the inside of the bottle,
A rush height into the bottle inside the dome side peripheral edge of the central portion is formed in a state where it is higher than half of the height from the ground contact portion to the boundary between the trunk portion and the bottom portion.

発明者は、中央部をその中心だけボトル内側に突入させたドーム状とするのでなく、その中心のドーム状の形状を保ったまま、ドーム状部分の周縁部から接地部にかけての中央部の全体についても径方向内側に向かうにつれてボトル内側に突入する構成にすることで、ボトル底部の強度を一層強化できることを見出した。そして、発明者はさらに、中央部の最大突入高さ、即ち、ドーム状部分の周縁部におけるボトル内側への突入高さを、底部の高さの半分よりも高くなるようにすることで、強度の強化の効果をさらに高められることも見出した。   The inventor does not make the center part into a dome shape with its center protruding into the inside of the bottle, but keeps the dome shape at the center while maintaining the entire center part from the peripheral part of the dome part to the grounding part. It has also been found that the strength of the bottom of the bottle can be further enhanced by adopting a configuration that enters the inside of the bottle as it goes radially inward. The inventor further increases the maximum entry height of the central portion, i.e., the entry height to the inside of the bottle at the peripheral edge of the dome-shaped portion, so that the strength is higher than half the height of the bottom portion. It was also found that the effect of strengthening can be further enhanced.

そして、この構成によれば、発明者の見出した構造、即ち、中央部を接地部から径方向内側に向かうにつれてボトル内側に突入する形状とするとともに、ドーム状部分の周縁部におけるボトル内側への突入高さを、底部の高さ（即ち、胴部と底部との境界までの高さ）の半分より高くなる状態で形成してあるから、底部の強度を効果的に高めることができる。これにより、冷凍保存における底部のバックリングを効果的に抑制できる。   And according to this structure, while making the shape which the inventor found out, ie, a center part, it is the shape which rushes into a bottle inner side as it goes to a diameter direction inner side from a grounding part, and the bottle inner side in the peripheral part of a dome-shaped part Since the entry height is higher than half the height of the bottom (that is, the height to the boundary between the trunk and the bottom), the strength of the bottom can be effectively increased. Thereby, the buckling of the bottom part in frozen storage can be suppressed effectively.

以下、本発明に係るアセプティック充填用ボトルの好適な態様について説明する。但し、以下に記載する好適な態様例によって、本発明の範囲が限定される訳ではない。   Hereinafter, preferred embodiments of the aseptic filling bottle according to the present invention will be described. However, the scope of the present invention is not limited by the preferred embodiments described below.

１つの態様として、前記中央部が弧状に形成されていると好適である。   As one aspect, it is preferable that the central portion is formed in an arc shape.

この構成によれば、ボトル内側に突入させる中央部の形状を弧状に形成することにより、中央部が接地部からドーム部側周縁部にかけて直線状で形成されているのに比べ、中央部にかかる圧力が均一化されるので底部の強度を一層効果的に高めることができる。これにより、冷凍保存における底部のバックリングを一層効果的に抑制できる。   According to this configuration, by forming the shape of the central portion that enters the inside of the bottle into an arc shape, the central portion is applied to the central portion as compared with the case where the central portion is formed in a straight line from the grounding portion to the dome portion side peripheral portion. Since the pressure is made uniform, the strength of the bottom can be increased more effectively. Thereby, the buckling of the bottom part in frozen storage can be suppressed more effectively.

１つの態様として、凹状溝部が前記中心部から放射状に形成されていると好適である。   As one aspect, it is preferable that the concave groove portions are formed radially from the central portion.

この構成によれば、凹状溝部により底部の強度を補強することができる。   According to this configuration, the strength of the bottom can be reinforced by the concave groove.

１つの態様として、前記凹状溝部が前記ドーム部から前記接地部より径方向外側の周縁部まで延びていると好適である。   As one aspect, it is preferable that the concave groove portion extends from the dome portion to a peripheral portion on the radially outer side from the grounding portion.

この構成によれば、底部の強度を補強する凹状溝部がドーム部から周縁部まで長く形成されているから、底部の強度を一層補強することができる。   According to this structure, since the concave groove part which reinforces the intensity | strength of a bottom part is formed long from the dome part to the peripheral part, the intensity | strength of a bottom part can be reinforced further.

１つの態様として、前記凹状溝部の接地部における深さが２．５ｍｍ〜５．０ｍｍであると好適である。   As one aspect, it is preferable that the depth of the concave groove in the ground contact portion is 2.5 mm to 5.0 mm.

凹状溝部の接地部における深さをこの構成における深さにすることにより底部の強度を一層補強することができる。   By making the depth of the ground contact portion of the concave groove portion the depth in this configuration, the strength of the bottom portion can be further reinforced.

１つの態様として前記胴部には、その周面を周回する少なくとも一つの凹状リブが形成されていると好適である。   As one aspect, it is preferable that the body portion is formed with at least one concave rib that circulates around the peripheral surface thereof.

この構成によれば、冷凍保存における内容物の体積膨張を、胴部に設けた凹状リブによりある程度吸収することができるから、体積膨張により適部に加わる力を低減することができて、冷凍保存における底部のバックリングを効果的に抑制できる。   According to this configuration, the volume expansion of the contents in the frozen storage can be absorbed to some extent by the concave rib provided in the body portion, so that the force applied to the appropriate part by the volume expansion can be reduced, and the frozen storage The buckling of the bottom part can be effectively suppressed.

アセプティック充填用ボトルの正面図Front view of aseptic filling bottle アセプティック充填用ボトルにおける底部の底面図Bottom view of the bottom of an aseptic bottle アセプティック充填用ボトルにおける底部の斜視図Perspective view of the bottom of an aseptic filling bottle 図２におけるＩＶ−ＩＶ断面図IV-IV sectional view in FIG. 図２におけるＶ−Ｖ断面図VV sectional view in FIG.

本発明に係るアセプティック充填用ボトルの実施形態について、図面を参照して説明する。本実施形態に係るアセプティック充填用ボトル１は、口部２と肩部４と胴部５と底部６とを備える。底部６は、設置面に対して接地させる接地部１０と、接地部１０から底部６における中心部に向かうにつれて本体内側に突入する中央部１２と、中央部１２における中心部に設けられた、中央部１２よりさらにボトル内側に突入するドーム部１３と、を有している。中央部１２は、中央部１２のドーム部側周縁部１２ａにおけるボトル内側への突入高さＤ１が、接地部１０から胴部５と底部６との境界までの高さの半分Ｄ２より高くなる状態で形成されている。これにより、冷凍保存における底部のバックリングを効果的に抑制できる。以下、本実施形態に係るアセプティック充填用ボトル１について詳細に説明する。   An embodiment of an aseptic filling bottle according to the present invention will be described with reference to the drawings. The aseptic filling bottle 1 according to this embodiment includes a mouth portion 2, a shoulder portion 4, a trunk portion 5, and a bottom portion 6. The bottom portion 6 includes a grounding portion 10 that is grounded with respect to the installation surface, a central portion 12 that enters the inside of the main body from the grounding portion 10 toward the central portion of the bottom portion 6, and a central portion that is provided at the central portion of the central portion 12. And a dome portion 13 that enters the inside of the bottle further than the portion 12. In the central portion 12, the height D1 of the central portion 12 entering the bottle inside the dome side peripheral edge portion 12a is higher than a half D2 of the height from the grounding portion 10 to the boundary between the trunk portion 5 and the bottom portion 6. It is formed with. Thereby, the buckling of the bottom part in frozen storage can be suppressed effectively. Hereinafter, the aseptic filling bottle 1 according to the present embodiment will be described in detail.

本実施形態に係るアセプティック充填用ボトル（以下、単にボトルと称する）１は、図１に示すように、液体の注ぎ口としての口部２と、液体を充填するボトル本体部３とを備える。ボトル本体部３は、肩部４と胴部５と底部６とを備えて構成される。肩部４は口部２と連続する底面方向に向かうにつれて徐々に拡径する部位であり、様々な形状の多角形のパネルを組み合わせた形状をしている。胴部４は肩部３と連続する筒状の部位である。底部５は、ボトル本体部３のうち、ボトル本体部３の周面が底面にかけて徐々に縮径する部位である。つまり、本実施形態では、胴部５と底部６との境界の位置は、ボトル本体部３が底面にかけて縮径し始める高さ方向の位置となる。   As shown in FIG. 1, an aseptic filling bottle (hereinafter simply referred to as a bottle) 1 according to the present embodiment includes a mouth portion 2 as a liquid spout and a bottle body portion 3 filled with a liquid. The bottle body 3 includes a shoulder 4, a body 5, and a bottom 6. The shoulder portion 4 is a portion that gradually increases in diameter toward the bottom surface continuous with the mouth portion 2, and has a shape obtained by combining polygonal panels having various shapes. The trunk 4 is a cylindrical part that is continuous with the shoulder 3. The bottom portion 5 is a portion of the bottle body portion 3 that gradually decreases in diameter toward the bottom surface of the bottle body portion 3. That is, in this embodiment, the position of the boundary between the body part 5 and the bottom part 6 is a position in the height direction in which the bottle main body part 3 starts to shrink in diameter toward the bottom surface.

ここで、本実施形態に係るボトル１は、無菌状態で液体をボトル内に充填するアセプティック（無菌）充填方法に用いるボトルである。アセプティック充填方法によれば、プラスチックボトルが高温にさらされずに済むため、ボトル１は、耐熱性が低くてもよく、このため厚みが薄く軽量なボトルとしてある。ボトル１は、例えば、ポリエチレン、ポリプロピレン、ポリエチレンテレフタレート等の熱可塑性樹脂を主材料として、二軸延伸ブロー成型等の延伸成形法によって一体的に成型することができる。   Here, the bottle 1 according to the present embodiment is a bottle used in an aseptic (sterile) filling method in which a liquid is filled into the bottle in a sterile state. According to the aseptic filling method, the plastic bottle does not have to be exposed to a high temperature, and therefore the bottle 1 may have low heat resistance, and thus is a thin bottle with a small thickness. The bottle 1 can be integrally molded by a stretch molding method such as biaxial stretch blow molding using a thermoplastic resin such as polyethylene, polypropylene, or polyethylene terephthalate as a main material.

本実施形態に係るボトル１は、後述するように、充填された液体を冷凍した場合の充填物膨張に耐えうるように構成したものであるため、ボトル１に充填させる内容物としては、例えばミネラルウォータ、茶、清涼飲料水、又は果汁等、冷凍して保存することのある非炭酸飲料が特に好適である。ただし、その他にも、例えば、炭酸飲料やソース等の食品にも好適に使用することができる。   Since the bottle 1 according to the present embodiment is configured to withstand the expansion of the filling when the filled liquid is frozen as will be described later, the contents to be filled in the bottle 1 are, for example, minerals Non-carbonated beverages that can be stored frozen, such as water, tea, soft drinks, or fruit juices, are particularly suitable. However, it can also be suitably used for foods such as carbonated drinks and sauces.

胴部５は、胴部上部としての直胴部５ａ、胴部下部としてのくびれ部５ｂ及びクッション部５ｃとから構成される。直胴部５にはその周面を周回する凹状リブ７が複数形成されている。凹状リブ７は径方向（ボトル１の中心軸Ｘに向かう方向であって、水平方向に沿う方向）内側に凹の形状であり、各凹状リブ７のそれぞれの幅及び深さは全周にわたって略一定に形成されている。これら凹状リブ７はボトル１の側面強度を補強する補強リブとして機能するとともに、冷凍保存時における内容液の体積膨張をボトル１の垂直上方向への延伸によりにより吸収する部位としても機能する。   The trunk portion 5 includes a straight barrel portion 5a as an upper portion of the trunk portion, a constricted portion 5b as a lower portion of the trunk portion, and a cushion portion 5c. The straight body portion 5 is formed with a plurality of concave ribs 7 that circulate around its peripheral surface. The concave rib 7 has a concave shape on the inner side in the radial direction (the direction toward the central axis X of the bottle 1 and along the horizontal direction), and the width and depth of each concave rib 7 are substantially the entire circumference. It is formed uniformly. These concave ribs 7 function as reinforcing ribs that reinforce the side strength of the bottle 1, and also function as a portion that absorbs the volume expansion of the content liquid during frozen storage by stretching the bottle 1 vertically upward.

くびれ部５ｂは消費者がボトル１を把持し易いように構成された部分である。くびれ部５ｂは、正面視において、様々な形状の多角形のパネルを組み合わせた形状を備えており、くびれ部５ｂにおける上下方向の中央位置に向かって徐々に縮径している。   The constricted part 5b is a part configured so that the consumer can easily hold the bottle 1. The constricted portion 5b has a shape obtained by combining polygonal panels having various shapes when viewed from the front, and the diameter of the constricted portion 5b is gradually reduced toward the central position in the vertical direction of the constricted portion 5b.

クッション部５ｃは、それぞれ凹状リブ７としてのＶ字凹部８及び２つの小凹部９ａ，９ｂを有し、３段バネ構造となっている。これにより上下方向に弾性変形することができる。そのため、ボトル１に対して上下方向から荷重が加えられても、クッション部５ｃが弾性変形してその荷重を吸収することができ、ボトル１の座屈を防止することができる。また、Ｖ字凹部８及び小凹部９ａ，９ｂは、冷凍保存時における内容液の体積膨張を変形により吸収する部位としても機能する。また、下側の小凹部９ｂは胴部５と底部６との境界にもなっている。   The cushion part 5c has a V-shaped concave part 8 and two small concave parts 9a and 9b as concave ribs 7, respectively, and has a three-stage spring structure. As a result, it can be elastically deformed in the vertical direction. Therefore, even if a load is applied to the bottle 1 from above and below, the cushion portion 5c can be elastically deformed to absorb the load, and the bottle 1 can be prevented from buckling. Further, the V-shaped concave portion 8 and the small concave portions 9a and 9b also function as a part that absorbs the volume expansion of the content liquid during deformation storage by deformation. The lower small recess 9 b also serves as a boundary between the body portion 5 and the bottom portion 6.

胴部５は以上のような構成であり、胴部５において、凹状リブ７は、胴部上部（直胴部５ａ）と下部（くびれ部５ｂ及びクッション部５ｃ）とにそれぞれ形成された状態となっている。凹状リブ７は、少なくとも胴部５のいずれかの位置に１本形成していればよく、好ましくは、胴部５に２本以上形成していればよい。より好ましくは、胴部下部には少なくとも１本形成され、胴部上部には複数形成されているとよく、本実施形態では、胴部上部としての直胴部５ａに計６本の凹状リブ７が形成されている。なお、胴部下部と胴部上部にそれぞれ少なくとも１本形成されていれば、冷凍保存時における内溶液の体積膨張をボトル１の垂直上方向に延伸しやすくなるので、ボトル１は傾きなくまっすぐ自立でき、かつ、ボトルの変形や破裂もない。また、図１に示すように、凹状リブ７は径方向の内側に凹の形状で、凹の形状が全周にわたって形成されていればよい。直胴部５ａ（胴部上部）は商品名等が記載された図示しないラベルが巻回される箇所であり、ラベルにより凹状リブ７が覆われることとなるから、直胴部５ａに凹状リブ７を重点的に形成することにより、外観を損ねることがない。   The body part 5 is configured as described above, and in the body part 5, the concave ribs 7 are respectively formed on the upper part (straight body part 5 a) and the lower part (neck part 5 b and cushion part 5 c). It has become. One concave rib 7 may be formed at least in any position of the trunk portion 5, and preferably two or more concave ribs 7 may be formed on the trunk portion 5. More preferably, at least one is formed in the lower part of the body part, and a plurality of parts are formed in the upper part of the body part. In this embodiment, a total of six concave ribs 7 are formed on the straight body part 5a as the upper part of the body part. Is formed. If at least one bottle is formed at each of the lower part of the body and the upper part of the body, the volume expansion of the inner solution at the time of freezing can be easily extended vertically upward of the bottle 1, so that the bottle 1 is straight and freestanding without tilting. Yes, and there is no deformation or rupture of the bottle. Moreover, as shown in FIG. 1, the concave rib 7 should just be a concave shape inside radial direction, and the concave shape should just be formed over the perimeter. The straight body portion 5a (the upper portion of the body portion) is a portion around which a label (not shown) on which a product name or the like is written is wound, and the concave rib 7 is covered with the label. By intensively forming, the appearance is not impaired.

図１〜３に示すように、底部６は、机などの設置面に対して接地させる環状の接地部１０を有し、さらに、接地部１０に対して径方向外側の部位である周縁部１１と、接地部１０に対して径方向内側の部位である中央部１２と、中央部１２における中心部に設けられた、中央部１２よりさらにボトル内側に突入するドーム部１３を有する。中央部１２は、接地部１０から径方向内側に向かうにつれてボトル１の内側（図１における上方）に突入する形状に形成されており、接地部１０からドーム部１３にかけて弧状に形成されている。さらに、図４に示すように、中央部１２は、中央部１２のドーム部側周縁部１２ａにおけるボトル内側への突入高さＤ１が、接地部１０から胴部５と底部６との境界６ａまでの高さの半分Ｄ２より高くなる状態で形成されている。また、ドーム部１３は、縦断面視において台形状となる形状で形成されている。   As shown in FIGS. 1 to 3, the bottom portion 6 has an annular grounding portion 10 that is grounded with respect to an installation surface such as a desk, and further, a peripheral portion 11 that is a portion radially outside the grounding portion 10. And a central portion 12 that is a radially inner portion with respect to the grounding portion 10 and a dome portion 13 that is provided at the central portion of the central portion 12 and further enters the bottle inside the central portion 12. The central portion 12 is formed in a shape that enters the inside of the bottle 1 (upward in FIG. 1) as it goes radially inward from the ground contact portion 10, and is formed in an arc shape from the ground contact portion 10 to the dome portion 13. Further, as shown in FIG. 4, the center portion 12 has a rush height D1 from the grounding portion 10 to the boundary 6 a between the trunk portion 5 and the bottom portion 6 at the dome portion side peripheral portion 12 a of the center portion 12. It is formed in a state where it is higher than half of the height D2. Moreover, the dome part 13 is formed in the shape used as a trapezoid in the longitudinal cross-sectional view.

底部６には、ドーム部１３から周縁部１１まで延びる複数の（本実施形態では８本）の凹状溝部１４がドーム部１３から放射状に等間隔で形成されている。この凹状溝部１４により底部６の強度を補強してある。この凹状溝部１４により接地部１０、周縁部１１、及び中央部１２が周方向（ボトル１の中心軸Ｘを周回する方向）に複数に（本実施形態では８つに）分断された状態となる。図５に示すように、各凹状溝部１４の周縁部１１側の端部１４ａの高さ位置はドーム部１３の頂部１３ｂの高さ位置と略同一となっている。また、凹状溝部１４は、その接地部１０における深さが２．５ｍｍ〜５．０ｍｍであると好適である。２．５ｍｍ以下であると、十分な補強強度は得がたく、５．０ｍｍ以上であると、深くなりすぎてボトル１の外観を損ねたり、他の部位の設計変更の必要が生じる虞がある。   A plurality of (eight in this embodiment) concave groove portions 14 extending from the dome portion 13 to the peripheral edge portion 11 are formed radially from the dome portion 13 at equal intervals on the bottom portion 6. The strength of the bottom portion 6 is reinforced by the concave groove portion 14. By this concave groove portion 14, the grounding portion 10, the peripheral edge portion 11, and the central portion 12 are divided into a plurality (in this embodiment, eight) in the circumferential direction (the direction around the central axis X of the bottle 1). . As shown in FIG. 5, the height position of the end portion 14 a on the peripheral edge 11 side of each concave groove portion 14 is substantially the same as the height position of the top portion 13 b of the dome portion 13. Moreover, the concave groove part 14 is suitable in the depth in the grounding part 10 being 2.5 mm-5.0 mm. If the thickness is 2.5 mm or less, sufficient reinforcement strength is difficult to obtain. If the thickness is 5.0 mm or more, the bottle 1 may become too deep and the appearance of the bottle 1 may be damaged, or the design of other parts may need to be changed. .

このようにボトル１において、底部６の中心部にドーム部１３を形成するだけでなく、ドーム部１３から接地部１０にかけての中央部１２の全体についても径方向内側に向かうにつれてボトル内側に突入する構成にすること、ドーム部側周縁部１３ａにおけるボトル内側への突入高さを、底部６の高さの半分よりも高くなるようにすること、接地部１０からドーム部側周縁部１３にかけて弧状に形成することで、底部６の強度を効果的に高めてある。さらに、ドーム部１３から周縁部１１まで延ばしてある凹状溝部１４により底部６の強度を補強してある。これにより、冷凍保存による内容物の体積膨張による底部６のバックリングを抑制できる強度を確保してある。   Thus, in the bottle 1, not only the dome portion 13 is formed at the center portion of the bottom portion 6, but the entire central portion 12 from the dome portion 13 to the grounding portion 10 also enters the inside of the bottle as it goes radially inward. The configuration is such that the height of the dome-side peripheral edge 13a entering the bottle inside is higher than half the height of the bottom 6, and the arcuate shape from the grounding part 10 to the dome-side peripheral part 13 By forming, the strength of the bottom 6 is effectively increased. Further, the strength of the bottom portion 6 is reinforced by the concave groove portion 14 extending from the dome portion 13 to the peripheral edge portion 11. Thereby, the intensity | strength which can suppress the buckling of the bottom part 6 by the volume expansion of the contents by freezing preservation | save is ensured.

次に、ボトル１の重量及び容積について説明する。まず、底部６は、ボトル全体重量に対する底部６の重量比率が０．１２以上となるように形成されている。つまり、底部６の重量比率を高くすることにより底部６の肉厚が重点的に増すことになり、ボトル全体において底部６について重点的にその強度を強化することができる。その結果として、底部６の強度を、冷凍保存における底部６のバックリングを抑制し得る程度まで高めることができる。下記の表１に、ボトル全体重量に対する底部の重量比率（表１中、底部／全体）と、冷凍保存における破裂・変形の有無（有が×、無が○）との関係を示す。   Next, the weight and volume of the bottle 1 will be described. First, the bottom 6 is formed so that the weight ratio of the bottom 6 to the total weight of the bottle is 0.12 or more. That is, by increasing the weight ratio of the bottom portion 6, the thickness of the bottom portion 6 is intensively increased, and the strength of the bottom portion 6 can be intensively enhanced in the entire bottle. As a result, the strength of the bottom 6 can be increased to such an extent that buckling of the bottom 6 during frozen storage can be suppressed. Table 1 below shows the relationship between the ratio of the weight of the bottom to the total weight of the bottle (in Table 1, bottom / whole) and the presence or absence of rupture / deformation during freezing storage (Yes x, No ○).

Figure 2016216093
Figure 2016216093

表１から明らかなように、ボトル全体重量に対する底部の重量比率が０．１２以上、より好ましくは０．１４以上のボトルについては、冷凍保存における破裂・変形が無く、その重量比率を下回るボトルについては、冷凍保存における破裂・変形が生じることとなっている。ただし、ボトル全体重量に対する底部の重量比率が０．２０以上となると、底部以外の胴部などの部位の肉厚が薄くなり、ブロー成形時や冷凍保存時等における破裂・変形が生じることになる。   As is clear from Table 1, for bottles having a bottom weight ratio of 0.12 or more, more preferably 0.14 or more with respect to the total weight of the bottle, there is no rupture / deformation in frozen storage, and the bottle is less than that weight ratio. Rupture / deformation occurs during freezing storage. However, when the weight ratio of the bottom part to the total weight of the bottle is 0.20 or more, the thickness of the body part other than the bottom part becomes thin, and rupture / deformation occurs during blow molding or frozen storage. .

ボトル１の容積は特に限定されず、一般的に流通している２００ｍｌ（ミリリットル）〜２ｌ（リットル）程度とすることができる。本実施形態ではボトル１は、５５０ｍｌの液体を充填するための容積に形成してあり、具体的にはその満注容量（口部２いっぱいまで液体を充填させるときの容量）は５７７ｍｌとしてある。   The volume of the bottle 1 is not particularly limited, and can be about 200 ml (milliliter) to 2 l (liter) which is generally distributed. In the present embodiment, the bottle 1 is formed in a volume for filling 550 ml of liquid, and specifically, its full capacity (capacity when filling the liquid up to the mouth part 2) is 577 ml.

ボトル１の重量と容積との関係については、ボトル１の満注容量に対するボトル１の重量（ｇ）の比率が０．０１７〜０．０４０（ｇ／ｍｌ）となるように形成されていると好適であり、本実施形態では、重量を１４．９ｇとしてあり、満注容量に対する重量の比率はおよそ０．２６としてある。つまり、アセプティック充填用ボトル１において満注容量（口部いっぱいまで液体を充填させるときの容量）に対する全体重量の比率が０．０４０（ｇ／ｍｌ）を上回ると、厚みが薄く軽量なボトルとはいえず、全体重量に対する底部の重量比率を０．１２以上にすることによる底部６の強度強化の必要性は薄まる。一方、満注容量に対する全体重量の比率が０．０１７（ｇ／ｍｌ）を下回ると、全体重量に対する底部の重量比率を０．１２以上にしたとしても、底部以外の胴部などの部位の肉厚が薄くなりすぎ、体積膨張による破裂を防止できる程度の強度が確保できなくなる。   Regarding the relationship between the weight and volume of the bottle 1, the ratio of the weight (g) of the bottle 1 to the full capacity of the bottle 1 is 0.017 to 0.040 (g / ml). In this embodiment, the weight is 14.9 g, and the ratio of the weight to the full volume is approximately 0.26. That is, if the ratio of the total weight to the full volume (capacity when filling the liquid up to the mouth) in the aseptic filling bottle 1 exceeds 0.040 (g / ml), the thin and light bottle is In other words, the necessity of reinforcing the strength of the bottom portion 6 by reducing the weight ratio of the bottom portion to the total weight to be 0.12 or less is reduced. On the other hand, if the ratio of the total weight to the full capacity is less than 0.017 (g / ml), even if the weight ratio of the bottom part to the total weight is set to 0.12 or more, the meat of the body part other than the bottom part The thickness becomes too thin, and it is not possible to secure a strength that can prevent rupture due to volume expansion.

また、ボトル１に内容液を充填して充填ボトルとするとき、満注容量に対する内容液で充填されていない空間（つまり内容物を充填させない余裕部分）の容積比率が０．１２以下であると好ましく、本実施形態では、液体で充填されない空間の容積を２７ｍｌ（＝満注容量５７７ｍｌ−５５０ｍｌ）と想定してあり、満注容量に対する液体で充填されていない空間の容積比率をおよそ０．０５としてある。つまり、冷凍保存を予定している場合には、内容液の体積膨張を考慮して、内容液で充填されていない空間を大きくして、体積膨張分を吸収するようにされている。これに対し、底部６の強度が高められた本実施形態に係るボトル１に内容液を充填する場合は、底部６のバックリングを抑制するために内容液で充填されていない空間を大きくする必要がなくなるため、本実施形態に係るボトル１は満注容量に対して内容液を十分満たす場合に好適である。このため、満注容量に対する内容液で充填されていない空間の容積比率が０．１２以下として、満注容量に対して内容液が十分満たされている充填ボトルとすると、本実施形態に係るボトル１を好適に使用できる。   Further, when the bottle 1 is filled with the content liquid to form a filled bottle, the volume ratio of the space not filled with the content liquid with respect to the full capacity (that is, a margin part where the content is not filled) is 0.12 or less. Preferably, in this embodiment, the volume of the space not filled with liquid is assumed to be 27 ml (= full capacity 577 ml−550 ml), and the volume ratio of the space not filled with liquid to the full capacity is approximately 0.05. It is as. That is, when freezing storage is planned, the volume not filled with the content liquid is increased in consideration of the volume expansion of the content liquid to absorb the volume expansion. On the other hand, when filling the bottle 1 according to the present embodiment in which the strength of the bottom portion 6 is increased with the content liquid, it is necessary to enlarge the space not filled with the content liquid in order to suppress buckling of the bottom portion 6. Therefore, the bottle 1 according to the present embodiment is suitable when the content liquid is sufficiently filled with respect to the full volume. For this reason, when the volume ratio of the space not filled with the content liquid with respect to the full volume is 0.12 or less and the content bottle is sufficiently filled with respect to the full volume, the bottle according to this embodiment is used. 1 can be preferably used.

〔その他の実施形態〕
最後に、本発明に係るアセプティック充填用ボトルのその他の実施形態について説明する。なお、以下のそれぞれの実施形態で開示される構成は、矛盾が生じない限り、他の実施形態で開示される構成と組み合わせて適用することも可能である。 [Other Embodiments]
Finally, other embodiments of the aseptic filling bottle according to the present invention will be described. Note that the configurations disclosed in the following embodiments can be applied in combination with the configurations disclosed in other embodiments as long as no contradiction arises.

（１）上記の実施形態では、胴部５が直胴部５ａ、くびれ部５ｂ、及びクッション部５ｃから構成された例を説明した。しかし、本発明の実施形態はこれに限定されない。例えば、胴部５が直胴部５ａのみから形成された構成としても良く、胴部５が直胴部５ａとくびれ部５ｂ又はクッション部５ｃから形成された構成としても良い。 (1) In the above-described embodiment, the example in which the trunk portion 5 includes the straight barrel portion 5a, the constricted portion 5b, and the cushion portion 5c has been described. However, the embodiment of the present invention is not limited to this. For example, the body portion 5 may be formed only from the straight body portion 5a, or the body portion 5 may be formed from the straight body portion 5a and the constricted portion 5b or the cushion portion 5c.

（２）上記の実施形態において、各凹状溝部１４の間に、さらに、接地部１０から周縁部１１にかけて、凹状溝部１４より小さい凹状小溝部を形成してもよい。これにより、さらに底部の強度を補強できる。 (2) In the above embodiment, a concave small groove portion smaller than the concave groove portion 14 may be formed between the concave groove portions 14 from the grounding portion 10 to the peripheral edge portion 11. Thereby, the strength of the bottom can be further reinforced.

（３）その他の構成に関しても、本明細書において開示された実施形態は全ての点で例示であって、本発明の範囲はそれらによって限定されることはないと理解されるべきである。当業者であれば、本発明の趣旨を逸脱しない範囲で、適宜改変が可能であることを容易に理解できるであろう。従って、本発明の趣旨を逸脱しない範囲で改変された別の実施形態も、当然、本発明の範囲に含まれる。 (3) Regarding other configurations, it should be understood that the embodiments disclosed herein are illustrative in all respects and that the scope of the present invention is not limited thereby. Those skilled in the art will readily understand that modifications can be made as appropriate without departing from the spirit of the present invention. Accordingly, other embodiments modified without departing from the spirit of the present invention are naturally included in the scope of the present invention.

本発明は、例えばアセプティック充填方法で内容液を充填するプラスチックボトルに利用することができる。   The present invention can be used for, for example, a plastic bottle filled with a content liquid by an aseptic filling method.

１ アセプティック充填用ボトル
２ 口部
４ 肩部
５ 胴部
６ 底部
７ 凹状リブ
８ Ｖ字凹部（凹状リブ）
９ａ，９ｂ 小凹部（凹状リブ）
１１ 周縁部
１０ 接地部
１２ 中央部
１３ ドーム部
１４ 凹状溝部
Ｄ１ 中央部のドーム部側周縁部におけるボトル内側への突入高さ
Ｄ２ 接地部から胴部と底部との境界までの高さの半分の高さ
DESCRIPTION OF SYMBOLS 1 Aseptic filling bottle 2 Mouth part 4 Shoulder part 5 Trunk part 6 Bottom part 7 Concave rib 8 V-shaped recessed part (concave rib)
9a, 9b Small recess (concave rib)
11 peripheral edge part 10 grounding part 12 central part 13 dome part 14 concave groove part D1 rush height D2 inside the bottle at the dome part side peripheral part of the central part is half of the height from the grounding part to the boundary between the trunk part and the bottom part height

Claims (6)

口部と肩部と胴部と底部とを備えるアセプティック充填用ボトルであって、
前記底部は、設置面に対して接地させる接地部と、前記接地部から径方向内側に向かうにつれてボトル内側に突入する中央部と、前記中央部における中心部に設けられた、前記中央部よりさらにボトル内側に突入するドーム部と、を有し、
前記中央部のドーム部側周縁部におけるボトル内側への突入高さが、前記接地部から前記胴部と前記底部との境界までの高さの半分より高くなる状態で形成されているアセプティック充填用ボトル。 An aseptic filling bottle comprising a mouth, a shoulder, a trunk and a bottom,
The bottom portion is provided on a grounding portion that is grounded with respect to an installation surface, a central portion that protrudes into the bottle as it goes radially inward from the grounding portion, and a central portion that is provided at a central portion of the central portion. A dome portion that rushes into the inside of the bottle,
For aseptic filling formed in such a manner that a rush height inside the bottle at the peripheral edge on the dome portion side of the central portion is higher than half of the height from the ground contact portion to the boundary between the trunk portion and the bottom portion. Bottle. 前記中央部が弧状に形成されている請求項１に記載のアセプティック充填用ボトル。   The aseptic filling bottle according to claim 1, wherein the central portion is formed in an arc shape. 凹状溝部が前記ドーム部から放射状に形成されている請求項１又は２に記載のアセプティック充填用ボトル。   The bottle for aseptic filling according to claim 1 or 2, wherein concave grooves are formed radially from the dome. 前記凹状溝部が前記ドーム部から前記接地部より径方向外側の周縁部まで延びている請求項３に記載のアセプティック充填用ボトル。   The aseptic filling bottle according to claim 3, wherein the concave groove portion extends from the dome portion to a peripheral portion radially outward from the grounding portion. 前記凹状溝部の接地部における深さが２．５ｍｍ〜５．０ｍｍである請求項３又は４に記載のアセプティック充填用ボトル。   5. The aseptic filling bottle according to claim 3, wherein a depth of the concave groove in the ground contact portion is 2.5 mm to 5.0 mm. 前記胴部には、その周面を周回する少なくとも一つの凹状リブが形成されている請求項１〜５のいずれか１項に記載のアセプティック充填用ボトル。   The aseptic filling bottle according to any one of claims 1 to 5, wherein at least one concave rib that circulates around the peripheral surface of the body portion is formed.
JP2015103127A 2015-05-20 2015-05-20 Aseptic filling bottle Active JP7012417B2 (en)

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JP2015103127A JP7012417B2 (en) 2015-05-20 2015-05-20 Aseptic filling bottle
US15/574,923 US20180162579A1 (en) 2015-05-20 2016-05-19 Aseptic filling bottle
CN201680028788.4A CN107709175A (en) 2015-05-20 2016-05-19 Aseptic filling bottle
EP16796552.4A EP3299306B1 (en) 2015-05-20 2016-05-19 Bottle for aseptic packing
ES16796552T ES2798300T3 (en) 2015-05-20 2016-05-19 Aseptic filling bottle
AU2016264086A AU2016264086B2 (en) 2015-05-20 2016-05-19 Aseptic filling bottle
PCT/JP2016/064848 WO2016186159A1 (en) 2015-05-20 2016-05-19 Bottle for aseptic packing

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