JP6216492B2 - Bottle - Google Patents

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Publication number
JP6216492B2
JP6216492B2 JP2012043363A JP2012043363A JP6216492B2 JP 6216492 B2 JP6216492 B2 JP 6216492B2 JP 2012043363 A JP2012043363 A JP 2012043363A JP 2012043363 A JP2012043363 A JP 2012043363A JP 6216492 B2 JP6216492 B2 JP 6216492B2
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Japan
Prior art keywords
wall portion
radial direction
panel
rib
circumferential direction
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JP2012043363A
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JP2013180756A (en
Inventor
小口 弘樹
弘樹 小口
吾郎 栗原
吾郎 栗原
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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Priority to JP2012043363A priority Critical patent/JP6216492B2/en
Application filed by Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Priority to CN201380007853.1A priority patent/CN104093638B/en
Priority to AU2013226970A priority patent/AU2013226970B2/en
Priority to CN201610086860.0A priority patent/CN105667925B/en
Priority to CA2865216A priority patent/CA2865216C/en
Priority to EP13754235.3A priority patent/EP2821349B1/en
Priority to US14/375,954 priority patent/US10017312B2/en
Priority to KR1020147023698A priority patent/KR101955294B1/en
Priority to PCT/JP2013/055151 priority patent/WO2013129480A1/en
Publication of JP2013180756A publication Critical patent/JP2013180756A/en
Priority to US14/858,807 priority patent/US10081476B2/en
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Publication of JP6216492B2 publication Critical patent/JP6216492B2/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D1/00Containers 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
    • B65D1/02Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0261Bottom construction
    • B65D1/0276Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2501/00Containers having bodies formed in one piece
    • B65D2501/0009Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B65D2501/0018Ribs
    • B65D2501/0036Hollow circonferential ribs

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

Description

本発明は、ボトルに関する。   The present invention relates to a bottle.

従来から、合成樹脂材料で有底筒状に形成されたボトルとして、例えば下記特許文献1に示されるように、筒状の胴部に、その径方向の内側に向けて窪むパネル部が周方向に間隔をあけて複数形成されるとともに、周方向で隣り合うパネル部同士の間が柱部とされた構成が知られている。
この構成によれば、例えばボトルに密封された内容物の温度が低下してボトル内が減圧した場合等に、パネル部が径方向の内側に向けて優先的に変形することで、ボトルのうちパネル部以外の部分での変形を抑えつつ、ボトル内の減圧を吸収するようになっている。
また、例えば特許文献2に示されるように、ボトルの減圧強度を高める目的で、胴部の外表面に沿って複数の環状溝を設ける構成が知られている。
Conventionally, as a bottle formed into a bottomed cylindrical shape with a synthetic resin material, for example, as shown in Patent Document 1 below, a panel portion that is recessed toward the inside in the radial direction is provided around a cylindrical body portion. There is known a configuration in which a plurality of panel portions adjacent in the circumferential direction are formed as pillar portions while being spaced apart in the direction.
According to this configuration, for example, when the temperature of the contents sealed in the bottle is reduced and the inside of the bottle is depressurized, etc., the panel portion is deformed preferentially toward the inside in the radial direction, While suppressing deformation at portions other than the panel portion, the reduced pressure in the bottle is absorbed.
For example, as shown in Patent Document 2, there is known a configuration in which a plurality of annular grooves are provided along the outer surface of the body portion in order to increase the decompression strength of the bottle.

特開2009−35263号公報JP 2009-35263 A 特開2004−262500号公報JP 2004-262500 A

ところで、上述したボトルにあっては、商品名や内容物等の表示、意匠性向上の観点から、例えばシュリンクラベルや、ストレッチラベル、ロールラベル、タックラベル等といったラベルが胴部に取り付けられる。
しかしながら、上述した従来の技術では、パネル部が径方向の内側に向けて凹設されているため、特にシュリンクラベルを用いた場合に、平面視において円形状のボトルであっても、胴部におけるラベルの装着状態が、柱部を覆う部分が角部、パネル部を覆う部分が辺部となるような略多角形状となり、ラベルの外観に違和感(外観不良)を生じる場合がある。
By the way, in the bottle mentioned above, labels, such as a shrink label, a stretch label, a roll label, a tack label, etc., are attached to a trunk | drum from a viewpoint of display of a brand name, the content, etc. and a design improvement.
However, in the above-described conventional technology, the panel portion is recessed toward the inside in the radial direction. Therefore, even when using a shrink label, even in the case of a circular bottle in plan view, The attached state of the label has a substantially polygonal shape in which the portion covering the column portion is a corner portion and the portion covering the panel portion is a side portion, which may cause the label appearance to be uncomfortable (poor appearance).

上述した外観不良の発生を抑制するために、パネル部の周方向に沿うパネル幅を縮小すると、減圧時におけるパネル部の変位量が低下し、所望の減圧吸収性能を発揮できない虞がある。
また、ボトルの胴部に複数の環状溝を設けた場合も同様に、当該溝の形状にラベルが追随し、軸方向に波打つようなラベル外観となる虞がある。
If the panel width along the circumferential direction of the panel portion is reduced in order to suppress the appearance failure described above, the amount of displacement of the panel portion during decompression may be reduced, and the desired reduced pressure absorption performance may not be exhibited.
Similarly, when a plurality of annular grooves are provided in the body portion of the bottle, there is a possibility that the label follows the shape of the grooves and has a label appearance that undulates in the axial direction.

そこで、本発明は、上述した事情に鑑みてなされたものであって、その目的は、所望の減圧吸収性能を維持した上で、胴部に取り付けられるラベルに外観不良が発生するのを抑制できるボトルを提供することである。   Therefore, the present invention has been made in view of the above-described circumstances, and the object thereof is to maintain the desired reduced-pressure absorption performance, and to suppress the appearance defect from occurring on the label attached to the body portion. Is to provide a bottle.

上記課題を解決するために、本発明は以下の手段を提案している。
本発明に係るボトルは、ラベルが取付けられる筒状の胴部に、その径方向の内側に向けて窪むパネル部が周方向に間隔をあけて複数形成されるとともに、周方向で隣り合う前記パネル部同士の間が柱部とされたボトルであって、前記パネル部は、径方向の内側に位置する底壁部と、該底壁部の外周縁から径方向の外側に向けて延びる側壁部と、を有し、前記底壁部には、前記側壁部のうち、少なくとも周方向を向く縦側壁部との間に隙間をあけて径方向の外側に向けて突出するリブが形成され、径方向に沿う横断面視において、前記リブの径方向外側に位置する頂面は、複数の前記柱部の径方向の外側に位置する頂部同士を周方向に沿って結ぶ仮想円上に位置しており、前記頂面の周方向に沿うリブ幅は、前記パネル部の周方向に沿うパネル幅の10%以上38.5%以下に設定されていることを特徴としている。
In order to solve the above problems, the present invention proposes the following means.
In the bottle according to the present invention, a plurality of panel portions that are recessed toward the inside in the radial direction are formed in the cylindrical body portion to which the label is attached at intervals in the circumferential direction, and adjacent to each other in the circumferential direction. A bottle having a pillar portion between the panel portions, wherein the panel portion includes a bottom wall portion located radially inside and a side wall extending radially outward from an outer peripheral edge of the bottom wall portion. A rib that protrudes outward in the radial direction with a gap between at least the longitudinal side wall portion facing the circumferential direction is formed on the bottom wall portion, In a cross-sectional view along the radial direction, the top surface located on the radially outer side of the rib is located on a virtual circle that connects the top portions located on the radially outer side of the plurality of column portions along the circumferential direction. The rib width along the circumferential direction of the top surface is a panel along the circumferential direction of the panel portion. It is characterized in that it is set to 10% or more 38.5% less.

このような特徴により、ボトル内部が減圧すると、パネル部における底壁部と側壁部との接続部分を中心にして、底壁部が径方向の内側に向かって変位することになる。すなわち、減圧時にパネル部を優先的に変形させることで、他の部位での変形を抑えつつ、ボトルの内圧変化(減圧)を吸収できる。
しかも、本発明の構成によれば、底壁部に径方向の外側に向けて突出するリブを配設したため、パネル部を覆うように胴部に取り付けられるラベルを、径方向の内側から支持することができる。そのため、ラベル装着時において、パネル部を覆う当該ラベルが径方向の内側へ移動するのを規制できる。これにより、ラベルがパネル部の内側に引き込まれるのを抑制し、ラベルに外観不良が発生するのを抑制できる。
また、減圧時にパネル部が径方向の内側に向けて変形した場合であっても、当該ラベルの変位は抑制される。その結果、所望の減圧吸収性能を維持した上で、胴部に取り付けられるラベルに外観不良が発生するのを抑制できる。
With such a feature, when the inside of the bottle is depressurized, the bottom wall portion is displaced inward in the radial direction around the connection portion between the bottom wall portion and the side wall portion in the panel portion. That is, by deforming the panel portion preferentially at the time of depressurization, it is possible to absorb changes in the internal pressure (depressurization) of the bottle while suppressing deformation at other parts.
In addition, according to the configuration of the present invention, since the rib protruding toward the outside in the radial direction is disposed on the bottom wall portion, the label attached to the trunk portion so as to cover the panel portion is supported from the inside in the radial direction. be able to. Therefore, when the label is mounted, the label covering the panel portion can be restricted from moving inward in the radial direction. Thereby, it can suppress that a label is drawn inside a panel part, and can suppress that the appearance defect generate | occur | produces in a label.
Further, even when the panel portion is deformed toward the inside in the radial direction during decompression, the displacement of the label is suppressed. As a result, it is possible to suppress the appearance defect from occurring on the label attached to the body part while maintaining the desired reduced-pressure absorption performance.

特に、リブの頂面が、複数の柱部の各頂部の表面形状に倣って周方向に延びる仮想円上に位置しているため、リブにおいて柱部と同一面上でラベルを支持できる。これにより、パネル部を覆うラベル部分の径方向の内側への変位を確実に規制することができる。   In particular, since the top surface of the rib is located on a virtual circle extending in the circumferential direction following the surface shape of each top portion of the plurality of column portions, the label can be supported on the same plane as the column portion in the rib. Thereby, the displacement to the inner side of the radial direction of the label part which covers a panel part can be controlled reliably.

また、上記本発明のボトルにおいて、前記頂面の周方向に沿うリブ幅が、前記パネル部の周方向に沿うパネル幅の10%以上38.5%以下に設定されているため、所望の減圧吸収性能を維持した上で、胴部に取り付けられるラベルに外観不良が発生するのを確実に抑制できる。
また、上記本発明のボトルにおいて、前記リブは、前記側壁部との間に全周に亘って隙間をあけて配設されていてもよい。
また、上記本発明のボトルにおいて、前記底壁部における前記側壁部の内周縁との接続部分は、径方向の内側に向けて窪む曲面状に形成されていてもよい。
Further, in the bottle of the present invention, the rib width along the circumferential direction of the top surface is set to 10% or more and 38.5% or less of the panel width along the circumferential direction of the panel portion. While maintaining the absorption performance, it is possible to reliably suppress the appearance failure of the label attached to the body.
Moreover, the bottle of the said invention WHEREIN: The said rib may be arrange | positioned with the clearance gap over the perimeter between the said side wall parts.
Moreover, the bottle of the said invention WHEREIN: The connection part with the inner periphery of the said side wall part in the said bottom wall part may be formed in the curved surface shape dented toward the inner side of radial direction.

また、上記本発明のボトルにおいて、前記胴部の下端に連なり該胴部の下端開口部を閉塞する底部を備え、前記底部の底壁部は、外周縁部に位置する接地部と、該接地部に径方向の内側から連なり上方に向けて延びる立ち上がり周壁部と、該立ち上がり周壁部の上端部から径方向の内側に向けて突出する環状の可動壁部と、該可動壁部の径方向の内端部から上方に向けて延びる陥没周壁部と、を備え、前記可動壁部は、前記陥没周壁部を上下方向に移動させるように、前記立ち上がり周壁部との接続部分を中心に回動自在に配設されていてもよい。   The bottle of the present invention further includes a bottom portion that is connected to the lower end of the barrel portion and closes the lower end opening of the barrel portion, and the bottom wall portion of the bottom portion includes a grounding portion located at an outer peripheral edge portion and the grounding portion. A rising peripheral wall portion that extends from the inner side in the radial direction and extends upward, an annular movable wall portion that protrudes inward in the radial direction from the upper end portion of the rising peripheral wall portion, and a radial direction of the movable wall portion A recessed peripheral wall portion extending upward from the inner end portion, and the movable wall portion is rotatable about a connection portion with the rising peripheral wall portion so as to move the recessed peripheral wall portion in the vertical direction. It may be arranged.

この場合には、可動壁部が、陥没周壁部を上下方向に移動させるように、立ち上がり周壁部との接続部分を中心に回動自在に配設されているので、ボトル内圧が変動したときに、可動壁部を回動させその内圧変動を吸収させることで、肩部及び胴部それぞれのボトル径方向の変形を抑えることができる。そのため、ラベルに外観不良が発生するのを確実に抑えることができる。   In this case, since the movable wall portion is disposed so as to be rotatable around the connecting portion with the rising peripheral wall portion so as to move the depressed peripheral wall portion in the vertical direction, when the bottle internal pressure fluctuates. By rotating the movable wall portion and absorbing the internal pressure fluctuation, deformation of the shoulder portion and the trunk portion in the bottle radial direction can be suppressed. Therefore, it is possible to reliably suppress the appearance defect from occurring on the label.

本発明に係るボトルによれば、所望の減圧吸収性能を維持した上で、胴部に取り付けられるラベルに外観不良が発生するのを抑制できる。   According to the bottle according to the present invention, it is possible to suppress the appearance failure of the label attached to the body portion while maintaining the desired reduced pressure absorption performance.

本発明の実施形態におけるボトルの側面図である。It is a side view of the bottle in the embodiment of the present invention. (a)は図1のA−A線に沿う断面図であり、(b)は図1のB−B線に沿う断面図である。(A) is sectional drawing which follows the AA line of FIG. 1, (b) is sectional drawing which follows the BB line of FIG. ボトルの底面図である。It is a bottom view of a bottle. 図3のC−C線に沿う断面図である。It is sectional drawing which follows the CC line of FIG. パネル幅D2に対するリブ幅D1の割合(D1/D2)と、吸収容量(ml)と、の関係を示すグラフである。It is a graph which shows the relationship between the ratio (D1 / D2) of rib width D1 with respect to panel width D2, and absorption capacity (ml).

以下、図面を参照し、本発明の実施形態に係るボトルを説明する。
本実施形態に係るボトル1は、図1〜4に示されるように、口部11、肩部12、胴部13及び底部14を備え、これら11〜14が、それぞれの中心軸線を共通軸上に位置させた状態で、この順に連設された概略構成となっている。
Hereinafter, bottles according to embodiments of the present invention will be described with reference to the drawings.
1-4, the bottle 1 which concerns on this embodiment is provided with the mouth part 11, the shoulder part 12, the trunk | drum 13, and the bottom part 14, and these 11-14 are on a common axis with each center axis line. It is the schematic structure which was arranged in this order in the state located in.

以下、上述した共通軸をボトル軸Oといい、ボトル軸O方向に沿って口部11側を上側、底部14側を下側といい、また、ボトル軸Oに直交する方向を径方向といい、ボトル軸Oを中心に周回する方向を周方向という。
なお、このボトル1は、射出成形により有底筒状に形成されたプリフォームが、ブロー成形されてなり、合成樹脂材料で一体に形成されている。また、口部11には、図示しないキャップが装着される。さらに、口部11、肩部12、胴部13及び底部14はそれぞれ、径方向に沿う横断面視形状が円形状となっている。
Hereinafter, the above-described common axis is referred to as the bottle axis O, the mouth 11 side along the bottle axis O direction is referred to as the upper side, the bottom 14 side is referred to as the lower side, and the direction orthogonal to the bottle axis O is referred to as the radial direction. The direction around the bottle axis O is called the circumferential direction.
The bottle 1 is formed integrally with a synthetic resin material by blow molding a preform formed into a bottomed cylindrical shape by injection molding. Further, a cap (not shown) is attached to the mouth portion 11. Further, each of the mouth portion 11, the shoulder portion 12, the trunk portion 13, and the bottom portion 14 has a circular cross-sectional view shape along the radial direction.

肩部12と胴部13との接続部分には、第1環状凹溝16が全周にわたって連続して形成されている。
胴部13は筒状に形成され、肩部12の下端に連なり下方に向けて延在している。胴部13のうち、ボトル軸O方向の両端部同士の間の中間部13aは、両端部よりも小径になっている。なお、胴部13の中間部13aには、図示しない例えばシュリンクラベル等のラベルが巻き付けられるようになっている。
A first annular groove 16 is continuously formed over the entire circumference at a connection portion between the shoulder portion 12 and the body portion 13.
The trunk | drum 13 is formed in the cylinder shape, continues to the lower end of the shoulder part 12, and is extended toward the downward direction. Of the body portion 13, an intermediate portion 13 a between both end portions in the bottle axis O direction has a smaller diameter than both end portions. Note that a label such as a shrink label (not shown) is wound around the intermediate portion 13a of the trunk portion 13.

図1,3,4に示すように、底部14は、有底筒状に形成され、上端開口部が胴部13の下端開口部に接続されたヒール部17と、ヒール部17の下端開口部を閉塞し、かつ外周縁部が接地部18とされた底壁部19と、を備えている。   As shown in FIGS. 1, 3, and 4, the bottom portion 14 is formed in a bottomed cylindrical shape, and an upper end opening is connected to a lower end opening of the body portion 13, and a lower end opening of the heel portion 17. And a bottom wall portion 19 whose outer peripheral edge portion is a grounding portion 18.

ヒール部17は、接地部18に径方向の外側から連なる下ヒール部27と、胴部13に下方から連なる上ヒール部28と、これらの下ヒール部27と上ヒール部28とを連結する連結部29と、を備えている。
下ヒール部27は、上ヒール部28より小径に形成され、連結部29は、上方から下方に向かうに従い漸次縮径されている。
上ヒール部28は、胴部13のボトル軸O方向の両端部とともに、ボトル1の最大外径部となっている。また、上ヒール部28におけるボトル軸O方向に沿う中間部分には、第2環状凹溝31が全周に亘って連続して形成されている。
また、ヒール部17の外周面、及び胴部13の下端部の外周面には、例えばシボ加工等により突出高さの低い凹凸部17aが形成されている。
The heel portion 17 includes a lower heel portion 27 that is continuous with the ground contact portion 18 from the outside in the radial direction, an upper heel portion 28 that is continuous with the trunk portion 13 from below, and a connection that connects the lower heel portion 27 and the upper heel portion 28. Part 29.
The lower heel portion 27 is formed to have a smaller diameter than the upper heel portion 28, and the connecting portion 29 is gradually reduced in diameter from the upper side to the lower side.
The upper heel portion 28 is the maximum outer diameter portion of the bottle 1 together with both end portions of the body portion 13 in the bottle axis O direction. In addition, a second annular groove 31 is continuously formed over the entire circumference in an intermediate portion along the bottle axis O direction in the upper heel portion 28.
Further, on the outer peripheral surface of the heel portion 17 and the outer peripheral surface of the lower end portion of the body portion 13, an uneven portion 17 a having a low protruding height is formed by, for example, embossing.

図3,4に示されるように、底壁部19は、接地部18に径方向の内側から連なり上方に向けて延びる立ち上がり周壁部21と、立ち上がり周壁部21の上端部から径方向の内側に向けて突出する環状の可動壁部22と、可動壁部22の径方向の内端部から上方に向けて延びる陥没周壁部23と、を備えている。   As shown in FIGS. 3 and 4, the bottom wall portion 19 is connected to the ground contact portion 18 from the inside in the radial direction and extends upward, and from the upper end portion of the rising circumferential wall portion 21 to the inside in the radial direction. The ring-shaped movable wall part 22 which protrudes toward is provided, and the depression surrounding wall part 23 extended toward the upper direction from the radial inner end part of the movable wall part 22 is provided.

立ち上がり周壁部21は、下方から上方に向かうに従い漸次縮径している。また、立ち上がり周壁部21には、凹凸部21aが全周に亘って形成されている。凹凸部21aは、径方向の内側に向けて突の曲面状に形成された複数の突部21bが、周方向に間隔をあけて配設された構成となっている。   The rising peripheral wall portion 21 is gradually reduced in diameter from the lower side toward the upper side. Further, the rising peripheral wall portion 21 is formed with an uneven portion 21a over the entire circumference. The concavo-convex portion 21a has a configuration in which a plurality of protrusions 21b formed in a curved shape protruding toward the inner side in the radial direction are arranged at intervals in the circumferential direction.

可動壁部22は、下方に向けて突の曲面状に形成されるとともに、径方向の外側から内側に向かうに従い漸次下方に向けて延在している。可動壁部22と立ち上がり周壁部21とは、上方に向けて突の曲面部25を介して連結されている。そして、可動壁部22は、陥没周壁部23を上方に向けて移動させるように、曲面部(立ち上がり周壁部21との接続部分)25を中心に回動自在となっている。
また、可動壁部22には、複数のリブ41がボトル軸Oを中心に放射状に配設されている。リブ41は、上方に向けて曲面状に窪む複数の凹部41aが径方向に沿って断続的に配設された構成となっている。
The movable wall portion 22 is formed in a curved shape protruding downward, and gradually extends downward from the outside in the radial direction toward the inside. The movable wall portion 22 and the rising peripheral wall portion 21 are connected via a curved surface portion 25 that protrudes upward. The movable wall portion 22 is rotatable about a curved surface portion (connection portion with the rising peripheral wall portion 21) 25 so that the depressed peripheral wall portion 23 is moved upward.
In addition, a plurality of ribs 41 are radially arranged around the bottle axis O on the movable wall portion 22. The rib 41 has a configuration in which a plurality of concave portions 41a that are recessed in a curved shape upward are intermittently disposed along the radial direction.

陥没周壁部23は、ボトル軸Oと同軸に配設されるとともに、その上端部に、ボトル軸Oと同軸に配置された頂壁24が接続されており、これらの陥没周壁部23及び頂壁24の全体で有頂筒状をなしている。   The depressed peripheral wall portion 23 is disposed coaxially with the bottle shaft O, and a top wall 24 disposed coaxially with the bottle shaft O is connected to an upper end portion of the depressed peripheral wall portion 23 and the top wall. The whole of 24 has a top cylinder shape.

陥没周壁部23は、上方から下方に向かうに従い漸次拡径された多段筒状に形成されている。具体的に、陥没周壁部23は、可動壁部22の径方向の内端部から上方に向かうに従い漸次縮径された下筒部23aと、頂壁24の外周縁部から下方に向かうに従い漸次拡径され下筒部23aより小径の上筒部23bと、これらの両筒部23a、23b同士を連結する環状段部23cと、を備えている。
下筒部23aは、可動壁部22の径方向の内端部に、下方に向けて突の曲面部26を介して連結されている。なお、この曲面部26は、径方向の内側を向く斜め下方に向けて突出している。また下筒部23aは、径方向に沿う横断面視で円形状に形成されている。
環状段部23cは、径方向の外側に向けて窪む凹曲面状に形成されている。環状段部23cは、立ち上がり周壁部21の上端部よりも上方、もしくは同等の高さに位置している。
The depressed peripheral wall portion 23 is formed in a multistage cylindrical shape whose diameter is gradually increased from the upper side toward the lower side. Specifically, the depressed peripheral wall portion 23 includes a lower cylindrical portion 23a that is gradually reduced in diameter from the radially inner end portion of the movable wall portion 22 and a gradually decreasing diameter from the outer peripheral edge portion of the top wall 24 toward the lower portion. The upper cylinder part 23b which is diameter-expanded and is smaller than the lower cylinder part 23a, and the annular step part 23c which connects both these cylinder parts 23a and 23b are provided.
The lower cylinder portion 23a is connected to the radially inner end portion of the movable wall portion 22 via a curved surface portion 26 that protrudes downward. The curved surface portion 26 protrudes obliquely downward toward the inner side in the radial direction. Moreover, the lower cylinder part 23a is formed in circular shape by the cross sectional view along radial direction.
The annular step 23c is formed in a concave curved shape that is recessed toward the outside in the radial direction. The annular step portion 23 c is located above the upper end portion of the rising peripheral wall portion 21 or at an equivalent height.

そして、上筒部23bには、径方向の内側に張り出した張出部23dが、周方向に複数連ねられて形成されることにより、底面視形状が、周方向で隣り合う張出部23d同士の間部分23eを角部とし、かつ張出部23dを辺部とした多角形状をなす角形筒部23fが形成されている。   The upper cylindrical portion 23b is formed with a plurality of protruding portions 23d extending inward in the radial direction, and the protruding portions 23d adjacent to each other in the circumferential direction are formed with each other in the circumferential direction. A rectangular tube portion 23f having a polygonal shape with the intermediate portion 23e as a corner portion and the overhang portion 23d as a side portion is formed.

張出部23dは、底面視において径方向の外側に向けて突の曲面状に形成され、陥没周壁部23の上筒部23bにおいて、周方向に間隔をあけて複数配置されている。本実施形態において、張出部23dは3つ形成され、角形筒部23fの底面視形状は正三角形状となっている。図3に示すボトル軸O方向に沿う縦断面視において、張出部23dは、径方向の内側に向けて突の曲面状に形成されている。
また、張出部23d同士の間部分23eは、底面視において径方向の外側に向けて突の曲面状に形成され、周方向で隣り合う張出部23dの周方向に沿う端部同士を各別に連結している。
The projecting portions 23d are formed in a curved shape projecting outward in the radial direction when viewed from the bottom, and a plurality of projecting portions 23d are arranged at intervals in the circumferential direction on the upper cylindrical portion 23b of the recessed peripheral wall portion 23. In the present embodiment, three projecting portions 23d are formed, and the shape of the rectangular tube portion 23f viewed from the bottom is an equilateral triangle. In the longitudinal cross-sectional view along the bottle axis O direction shown in FIG. 3, the overhang portion 23 d is formed in a curved surface shape protruding toward the inside in the radial direction.
Further, the portion 23e between the overhanging portions 23d is formed in a curved surface protruding outward in the radial direction in a bottom view, and the end portions along the circumferential direction of the overhanging portions 23d adjacent in the circumferential direction are respectively It is linked separately.

ここで、図1,2に示すように、上述した胴部13の中間部13aには、径方向の内側に向けて窪む減圧吸収用のパネル部51が周方向に間隔をあけて複数形成されている。そして、胴部13において、周方向で隣り合うパネル部51同士の間に位置する部分は、ボトル軸O方向に沿って延びる柱部52を構成している。すなわち、胴部13には、凹形状のパネル部51と凸形状の柱部52とが周方向に交互に配設されている。   Here, as shown in FIGS. 1 and 2, a plurality of vacuum absorbing panel portions 51 that are recessed inward in the radial direction are formed in the intermediate portion 13 a of the body portion 13 at intervals in the circumferential direction. Has been. And in the trunk | drum 13, the part located between the panel parts 51 adjacent in the circumferential direction comprises the pillar part 52 extended along the bottle axis | shaft O direction. That is, the body portion 13 is provided with concave panel portions 51 and convex column portions 52 alternately arranged in the circumferential direction.

パネル部51は、径方向の外側から見てボトル軸O方向を長手方向とする矩形状に形成された底壁部53と、底壁部53の外周縁から径方向の外側に向けて立設され、底壁部53を全周に亘って取り囲む側壁部54と、を有している。   The panel portion 51 has a bottom wall portion 53 formed in a rectangular shape with the bottle axis O direction as a longitudinal direction when viewed from the outside in the radial direction, and is erected from the outer peripheral edge of the bottom wall portion 53 toward the outside in the radial direction. And a side wall 54 that surrounds the entire bottom wall 53.

側壁部54のうち、底壁部53における周方向の両端に連なりボトル軸O方向に延びる一対の縦側壁部54aは、径方向の内側から外側に向かうに従い周方向の外側(各縦側壁部54aが離間する方向)に向けて傾斜する傾斜面とされている。そして、周方向で隣り合うパネル部51の縦側壁部54a同士の間に位置する柱部52は、ボトル軸Oに直交する横断面視形状が径方向の内側から外側に向けて周方向の大きさが小さくなる台形状に形成されている。また、柱部52における径方向の外側に位置する頂部52aは、径方向の外側に向けて突の曲面状に形成され、胴部13における中間部13aの最大外径部となっている。
一方で、側壁部54のうち、ボトル軸O方向の両端に位置して周方向に延びる一対の横側壁部54bは、径方向の内側から外側に向けて延設されている。
Among the side wall parts 54, a pair of vertical side wall parts 54a extending in the bottle axis O direction and connected to both ends in the circumferential direction of the bottom wall part 53 are arranged on the outer side in the circumferential direction from the inner side to the outer side in the radial direction (each vertical side wall part 54a). It is set as the inclined surface which inclines toward (separating direction). And the column part 52 located between the vertical side wall parts 54a of the panel part 51 adjacent in the circumferential direction has the cross-sectional view shape orthogonal to the bottle axis | shaft O, and the magnitude | size of the circumferential direction toward the outer side from radial inside. It is formed in a trapezoidal shape. Further, the top portion 52 a located on the outer side in the radial direction in the column portion 52 is formed in a curved shape protruding toward the outer side in the radial direction, and is the maximum outer diameter portion of the intermediate portion 13 a in the body portion 13.
On the other hand, a pair of side wall parts 54b which are located in the both ends of the bottle axis | shaft O direction among the side wall parts 54 and are extended in the circumferential direction are extended toward the outer side from the inner side of radial direction.

そして、底壁部53の中央部には、径方向の外側に向けて突出するリブ55が形成されている。リブ55は、径方向の外側から見てボトル軸O方向を長手方向とする矩形状に形成され、側壁部54との間に全周に亘って隙間をあけて配設されている。すなわち、リブ55は、パネル部51の内側に島状に配設されている。   And the rib 55 which protrudes toward the outer side of radial direction is formed in the center part of the bottom wall part 53. As shown in FIG. The rib 55 is formed in a rectangular shape having the bottle axis O direction as a longitudinal direction when viewed from the outside in the radial direction, and is disposed with a gap around the entire circumference with the side wall portion 54. That is, the rib 55 is disposed in an island shape inside the panel portion 51.

リブ55の径方向に沿う横断面視(図2(a)参照)において、径方向の外側に位置する頂面55aは、径方向の外側に向けて突の曲面状に形成されている。頂面55aは、複数の柱部52における各頂部52aの表面形状に倣って周方向に延びる仮想円L上に位置し、胴部13における中間部13aの最大外径部となっている。
また、頂面55aにおける中間部13aの接線方向に沿うリブ幅D1は、パネル部51における中間部13aの接線方向に沿うパネル幅D2の10%以上38.5%以下に設定されている。
In a cross-sectional view along the radial direction of the rib 55 (see FIG. 2A), the top surface 55a positioned on the outer side in the radial direction is formed in a curved surface shape protruding toward the outer side in the radial direction. The top surface 55 a is located on a virtual circle L extending in the circumferential direction following the surface shape of each top portion 52 a in the plurality of column portions 52, and is the maximum outer diameter portion of the intermediate portion 13 a in the trunk portion 13.
The rib width D1 along the tangential direction of the intermediate portion 13a on the top surface 55a is set to 10% or more and 38.5% or less of the panel width D2 along the tangential direction of the intermediate portion 13a of the panel portion 51.

リブ55を画成する壁部のうち、周方向の両端に位置してボトル軸O方向に延びる一対の縦壁部55bは、径方向の内側から外側に向かうに従い周方向の内側に向けて傾斜している。一方、リブ55を画成する壁部のうち、ボトル軸O方向の両端に位置して周方向に延びる一対の横リブ55cは、径方向の内側から外側に向かうにつれボトル軸O方向の外側から内側に向けて傾斜している。したがって、リブ55は、径方向の内側から外側に向かうに従いボトル軸O方向、及び周方向の幅が漸次縮小する台形状に形成されている。   Of the wall portions that define the ribs 55, the pair of vertical wall portions 55b that are located at both ends in the circumferential direction and extend in the bottle axis O direction are inclined toward the inner side in the circumferential direction from the inner side to the outer side in the radial direction. doing. On the other hand, among the wall portions that define the rib 55, the pair of lateral ribs 55c that are positioned at both ends in the bottle axis O direction and extend in the circumferential direction are from the outside in the bottle axis O direction as they go from the inside in the radial direction to the outside. Inclined inward. Therefore, the rib 55 is formed in a trapezoidal shape in which the width in the bottle axis O direction and the circumferential direction are gradually reduced from the inner side to the outer side in the radial direction.

底壁部53における側壁部54の内周縁との接続部分53aは、図2(a),(b)に示されるように、ボトル軸O方向に沿う縦断面視(図2(b)参照)、及び径方向に沿う横断面視(図2(a)参照)において、側壁部54の内周縁から連なり径方向の内側に向けて窪む曲面状に形成されている。   As shown in FIGS. 2A and 2B, the connecting portion 53a of the bottom wall portion 53 with the inner peripheral edge of the side wall portion 54 is a longitudinal sectional view along the bottle axis O direction (see FIG. 2B). And in a cross-sectional view along the radial direction (see FIG. 2A), it is formed in a curved shape that continues from the inner peripheral edge of the side wall portion 54 and is recessed toward the inner side in the radial direction.

本実施形態では、ボトル1の内部が減圧すると、パネル部51における底壁部53と側壁部54との接続部分53aを中心にして、底壁部53が径方向の内側に向かって変位することになる。すなわち、減圧時にパネル部51を優先的に変形させることで、他の部位(例えば、柱部52や肩部12)での変形を抑えつつ、ボトル1の内圧変化(減圧)を吸収できる。
しかも、本実施形態では、底壁部53に径方向の外側に向けて突出するリブ55を形成したため、パネル部51を覆うように胴部13に巻き付けられるラベルを、径方向の内側から支持することができる。そのため、ラベル装着時において、パネル部51を覆うラベルが径方向の内側へ移動するのを規制できる。これにより、ラベルがパネル部51の内側に引き込まれるのを抑制し、ラベルに外観不良が発生するのを抑制できる。
また、減圧時にパネル部51が径方向の内側に向けて変形した場合であっても、ラベルの変位は抑制される。その結果、所望の減圧吸収性能を維持した上で、胴部13に巻き付けられるラベルに外観不良が発生するのを抑制できる。
In the present embodiment, when the inside of the bottle 1 is depressurized, the bottom wall portion 53 is displaced toward the inside in the radial direction around the connection portion 53a between the bottom wall portion 53 and the side wall portion 54 in the panel portion 51. become. That is, by deforming the panel portion 51 preferentially at the time of depressurization, it is possible to absorb changes in the internal pressure (depressurization) of the bottle 1 while suppressing deformation at other portions (for example, the column portion 52 and the shoulder portion 12).
Moreover, in the present embodiment, since the rib 55 projecting outward in the radial direction is formed on the bottom wall portion 53, the label wound around the trunk portion 13 so as to cover the panel portion 51 is supported from the inside in the radial direction. be able to. Therefore, it is possible to restrict the label covering the panel unit 51 from moving inward in the radial direction when the label is mounted. Thereby, it can suppress that a label is drawn in the inside of the panel part 51, and can suppress that the appearance defect generate | occur | produces in a label.
Further, even when the panel portion 51 is deformed toward the inside in the radial direction during decompression, the displacement of the label is suppressed. As a result, it is possible to prevent the appearance defect from occurring in the label wound around the body portion 13 while maintaining the desired reduced pressure absorption performance.

特に、リブ55の頂面55aが、複数の柱部52の各頂部52aの表面形状に倣って周方向に延びる仮想円L上に位置しているため、リブ55において柱部52と同一面上でラベルを支持できる。これにより、パネル部51を覆うラベル部分の径方向の内側への変位を確実に規制することができる。   In particular, since the top surface 55a of the rib 55 is located on the virtual circle L extending in the circumferential direction following the surface shape of each top portion 52a of the plurality of column portions 52, the rib 55 is flush with the column portion 52. Can support the label. Thereby, the displacement to the inner side of the radial direction of the label part which covers the panel part 51 can be controlled reliably.

さらに、本実施形態では、可動壁部22が、陥没周壁部23をボトル軸O方向に移動させるように、曲面部25を中心に回動自在に配設されているので、ボトル1の内圧が変動したときに、可動壁部22を回動させその内圧変動を吸収させることで、肩部12及び胴部13それぞれの径方向の変形を抑えることができる。そのため、ラベルに外観不良が発生するのを確実に抑えることができる。
また、可動壁部22による減圧吸収機能が十分である場合、この可動壁部22を優先的に減圧変位させ、前記パネル部51の変形を抑制(防止)するように構成することもできる。
この場合は、例えばリブ幅D1を可能な限り大きく形成することができ、より確実にラベルに外観不良が発生することを防止できる。
Furthermore, in the present embodiment, the movable wall portion 22 is disposed so as to be rotatable around the curved surface portion 25 so as to move the depressed peripheral wall portion 23 in the bottle axis O direction. When it fluctuates, the radial deformation of the shoulder portion 12 and the trunk portion 13 can be suppressed by rotating the movable wall portion 22 to absorb the fluctuation of the internal pressure. Therefore, it is possible to reliably suppress the appearance defect from occurring on the label.
Further, when the reduced pressure absorption function by the movable wall portion 22 is sufficient, the movable wall portion 22 can be preferentially displaced under reduced pressure to suppress (prevent) the deformation of the panel portion 51.
In this case, for example, the rib width D1 can be formed as large as possible, and it is possible to more reliably prevent appearance defects from occurring on the label.

ここで、本願発明者は、図5に示すように、パネル幅D2に対するリブ幅D1の割合(D1/D2)と、ボトル1内が減圧状態となった際の吸収容量(ml)と、の関係がどのように変化するかを検証した。本検証で用いたボトル1は、内容量が500mlとし、同形状のパネル部51が胴部13の周方向に均等間隔で6つ配置されている。また、減圧時に底壁部19が実質変形しないような構成とし、パネル部51のみの吸収容量を解析により検証した。   Here, as shown in FIG. 5, the inventor of the present invention has a ratio (D1 / D2) of the rib width D1 to the panel width D2 and an absorption capacity (ml) when the bottle 1 is in a reduced pressure state. We examined how the relationship changed. The bottle 1 used in this verification has an internal capacity of 500 ml, and six panel portions 51 having the same shape are arranged at equal intervals in the circumferential direction of the body portion 13. Moreover, it was set as the structure which the bottom wall part 19 does not deform | transform substantially at the time of pressure reduction, and the absorption capacity of only the panel part 51 was verified by analysis.

本試験において、パネル幅D2に対するリブ幅D1の割合は、パネル幅D2は変化させずに、リブ幅D1を6(mm)〜12(mm)の範囲で1(mm)ずつ変化させることで調整した。具体的な条件は以下の通りである。
<サンプル1>リブ幅D1=6、パネル幅D2=26mm(D1/D2=23.1%)
<サンプル2>リブ幅D1=7、パネル幅D2=26mm(D1/D2=26.9%)
<サンプル3>リブ幅D1=8、パネル幅D2=26mm(D1/D2=30.8%)
<サンプル4>リブ幅D1=9、パネル幅D2=26mm(D1/D2=34.6%)
<サンプル5>リブ幅D1=10、パネル幅D2=26mm(D1/D2=38.5%)
<サンプル6>リブ幅D1=11、パネル幅D2=26mm(D1/D2=42.3%)
<サンプル7>リブ幅D1=12、パネル幅D2=26mm(D1/D2=46.2%)
In this test, the ratio of the rib width D1 to the panel width D2 is adjusted by changing the rib width D1 by 1 (mm) in the range of 6 (mm) to 12 (mm) without changing the panel width D2. did. Specific conditions are as follows.
<Sample 1> Rib width D1 = 6, panel width D2 = 26 mm (D1 / D2 = 23.1%)
<Sample 2> Rib width D1 = 7, panel width D2 = 26 mm (D1 / D2 = 26.9%)
<Sample 3> Rib width D1 = 8, panel width D2 = 26 mm (D1 / D2 = 30.8%)
<Sample 4> Rib width D1 = 9, panel width D2 = 26 mm (D1 / D2 = 34.6%)
<Sample 5> Rib width D1 = 10, panel width D2 = 26 mm (D1 / D2 = 38.5%)
<Sample 6> Rib width D1 = 11, Panel width D2 = 26 mm (D1 / D2 = 42.3%)
<Sample 7> Rib width D1 = 12, Panel width D2 = 26 mm (D1 / D2 = 46.2%)

図5に示すように、パネル幅D2に対するリブ幅D1の割合が高くなるにつれて(リブ幅D1が大きくなるにつれて)、パネル部51においてラベルの支持部分が拡大されるため、ラベル装着に伴うラベルへの外観不良の発生は少なくなるものの、吸収容量が低下していることが分かる。具体的に、サンプル1〜7における吸収容量は、それぞれ27.4(ml),27.3(ml),27.2(ml),26.9(ml),26.6(ml),25.2(ml),22.2(ml)となっている。
特に、パネル幅D2に対するリブ幅D1の割合が38.5%より高い場合(サンプル6,7の場合)には、吸収容量が大幅に低下していることが分かる。これは、リブ幅D1が大きくなるにつれて、底壁部53の幅が縮小し、減圧時におけるパネル部51の変位量が低下するため、所望の減圧吸収性能を発揮できなかったと考えられる。この場合には、減圧強度の増加に追従できず、減圧途中でパネル部51以外の箇所に局部変形が生じる等の虞がある。
これに対して、パネル幅D2に対するリブ幅D1の割合が38.5%以下の場合には、ラベルに外観不良が発生するのを抑制した上で、26(ml)以上の吸収容量を維持しており、十分な減圧吸収性能を発揮できた。
As shown in FIG. 5, as the ratio of the rib width D1 to the panel width D2 increases (as the rib width D1 increases), the support portion of the label is enlarged in the panel portion 51. It can be seen that the absorption capacity is reduced, although the occurrence of the appearance defect is reduced. Specifically, the absorption capacities of Samples 1 to 7 were 27.4 (ml), 27.3 (ml), 27.2 (ml), 26.9 (ml), 26.6 (ml), and 25, respectively. 2 (ml) and 22.2 (ml).
In particular, when the ratio of the rib width D1 to the panel width D2 is higher than 38.5% (in the case of samples 6 and 7), it can be seen that the absorption capacity is greatly reduced. This is probably because the width of the bottom wall portion 53 is reduced as the rib width D1 is increased, and the amount of displacement of the panel portion 51 at the time of decompression is reduced, so that the desired reduced pressure absorption performance cannot be exhibited. In this case, it is impossible to follow the increase in the reduced pressure strength, and there is a possibility that local deformation occurs in a place other than the panel portion 51 during the reduced pressure.
On the other hand, when the ratio of the rib width D1 to the panel width D2 is 38.5% or less, the absorption capacity of 26 (ml) or more is maintained while suppressing the appearance failure of the label. And was able to demonstrate sufficient vacuum absorption performance.

一方、パネル幅D2に対するリブ幅D1の割合が低くなるにつれて(リブ幅D1が小さくなるにつれて)、減圧時に十分な減圧吸収性能を発揮できるものの、外観の低下が顕著になった。これは、リブ幅D1が小さくなるにつれて、パネル部51においてラベルの支持部分が縮小されるため、リブ55と柱部52との間隔が大きくなり、胴部13に巻き付けられたラベルがパネル部51の底壁部53に向けて径方向の内側に移動し易くなったためと考えられる。具体的には、上記サンプル1において、シュリンクラベルを装着した際の外観の低下は見られなかった。
これに対して、パネル幅D2に対するリブ幅D1の割合が10%未満とした場合には、装着されたシュリンクラベルに外観の低下が見られた。
On the other hand, as the ratio of the rib width D1 to the panel width D2 is reduced (as the rib width D1 is reduced), although the sufficient reduced pressure absorption performance can be exhibited at the time of pressure reduction, the appearance is significantly reduced. This is because, as the rib width D1 is reduced, the support portion of the label is reduced in the panel portion 51. Therefore, the interval between the rib 55 and the column portion 52 is increased, and the label wound around the body portion 13 is attached to the panel portion 51. This is thought to be because it became easier to move inward in the radial direction toward the bottom wall portion 53 of the. Specifically, in Sample 1 above, no deterioration in appearance was observed when the shrink label was attached.
On the other hand, when the ratio of the rib width D1 to the panel width D2 was less than 10%, the appearance of the attached shrink label was deteriorated.

以上の結果から、パネル幅D2に対するリブ幅D1の割合を10%以上38.5%以下に設定することで、所望の減圧吸収性能を維持した上で、胴部13に巻き付けられるラベルに外観不良が発生するのを抑制できる。   From the above results, by setting the ratio of the rib width D1 to the panel width D2 to be not less than 10% and not more than 38.5%, the appearance of the label wound around the body portion 13 is deteriorated while maintaining the desired reduced pressure absorption performance. Can be prevented from occurring.

以上、本発明の実施形態について図面を参照して詳述したが、具体的な構成はこの実施形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等も含まれる。   As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

例えば、パネル部51及び柱部52の数や配置等は、ボトル1に要求される強度や減圧吸収容量等を考慮して適宜設計変更が可能である。
また、上述した実施形態では、肩部12、胴部13及び底部14のそれぞれの径方向に沿う横断面視形状を円形状としたが、これに限らず例えば、多角形状にする等適宜変更してもよい。
さらに、上述した実施形態では、リブ55が側壁部54との間に全周に亘って隙間をあけて配設した場合について説明したが、これに限らず、少なくとも縦側壁部54aとの間に隙間をあけていれば構わない。
For example, the number and arrangement of the panel portions 51 and the column portions 52 can be appropriately changed in consideration of the strength required for the bottle 1 and the reduced pressure absorption capacity.
In the embodiment described above, the cross-sectional view shape along the radial direction of each of the shoulder portion 12, the trunk portion 13, and the bottom portion 14 is a circular shape, but is not limited thereto. May be.
Furthermore, in the above-described embodiment, the description has been given of the case where the rib 55 is disposed with a gap around the entire circumference between the rib 55 and the side wall 54. However, the present invention is not limited thereto, and at least between the rib 55 and the vertical side wall 54a. It does not matter as long as there is a gap.

また、上述した実施形態では、各底壁部53にそれぞれ一つのリブ55を配設した場合について説明したが、これに限らず、リブ55を複数ずつ配設しても構わない。
また、ボトル1を形成する合成樹脂材料は、例えばポリエチレンテレフタレートや、ポリエチレンナフタレート、非晶性ポリエステル等、またはこれらのブレンド材料等、適宜変更してもよい。
さらに、ボトル1は単層構造体に限らず中間層を有する積層構造体としてもよい。この中間層としては、例えばガスバリア性を有する樹脂材料からなる層、再生材からなる層、若しくは酸素吸収性を有する樹脂材料からなる層等が挙げられる。
In the above-described embodiment, the case where one rib 55 is provided on each bottom wall portion 53 has been described. However, the present invention is not limited to this, and a plurality of ribs 55 may be provided.
The synthetic resin material forming the bottle 1 may be appropriately changed, for example, polyethylene terephthalate, polyethylene naphthalate, amorphous polyester, or a blend material thereof.
Further, the bottle 1 is not limited to a single layer structure, and may be a laminated structure having an intermediate layer. Examples of the intermediate layer include a layer made of a resin material having a gas barrier property, a layer made of a recycled material, or a layer made of a resin material having an oxygen absorbing property.

その他、本発明の趣旨を逸脱しない範囲で、前記実施形態における構成要素を周知の構成要素に置き換えることは適宜可能であり、また、前記変形例を適宜組み合わせてもよい。   In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the modification examples may be combined as appropriate.

1…ボトル
13…胴部
14…底部
18…接地部
19…底壁部
21…立ち上がり周壁部
22…可動壁部
23…陥没周壁部
51…パネル部
52…柱部
53…底壁部
54…側壁部
54a…縦側壁部
55…リブ
D1…リブ幅
D2…パネル幅
L…仮想円
O…ボトル軸
DESCRIPTION OF SYMBOLS 1 ... Bottle 13 ... Body part 14 ... Bottom part 18 ... Grounding part 19 ... Bottom wall part 21 ... Standing peripheral wall part 22 ... Movable wall part 23 ... Depression peripheral wall part 51 ... Panel part 52 ... Column part 53 ... Bottom wall part 54 ... Side wall Part 54a ... Vertical side wall part 55 ... Rib D1 ... Rib width D2 ... Panel width L ... Virtual circle O ... Bottle axis

Claims (4)

ラベルが取付けられる筒状の胴部に、その径方向の内側に向けて窪むパネル部が周方向に間隔をあけて複数形成されるとともに、周方向で隣り合う前記パネル部同士の間が柱部とされたボトルであって、
前記パネル部は、径方向の内側に位置する底壁部と、該底壁部の外周縁から径方向の外側に向けて延びる側壁部と、を有し、
前記底壁部には、前記側壁部のうち、少なくとも周方向を向く縦側壁部との間に隙間をあけて径方向の外側に向けて突出するリブが形成され、
径方向に沿う横断面視において、前記リブの径方向外側に位置する頂面は、複数の前記柱部の径方向の外側に位置する頂部同士を周方向に沿って結ぶ仮想円上に位置しており、
前記頂面の周方向に沿うリブ幅は、前記パネル部の周方向に沿うパネル幅の10%以上38.5%以下に設定されていることを特徴とするボトル。
A plurality of panel portions that are recessed toward the inside in the radial direction are formed in the cylindrical body portion to which the label is attached at intervals in the circumferential direction, and a column is provided between the panel portions adjacent in the circumferential direction. A bottle made of
The panel portion has a bottom wall portion located on the inner side in the radial direction, and a side wall portion extending from the outer peripheral edge of the bottom wall portion toward the outer side in the radial direction,
The bottom wall portion is formed with a rib protruding toward the outside in the radial direction with a gap between at least the longitudinal side wall portion facing the circumferential direction among the side wall portions,
In a cross-sectional view along the radial direction, the top surface located on the radially outer side of the rib is located on a virtual circle that connects the top portions located on the radially outer side of the plurality of column portions along the circumferential direction. And
The rib width along the circumferential direction of the top surface is set to 10% or more and 38.5% or less of the panel width along the circumferential direction of the panel portion.
前記リブは、前記側壁部との間に全周に亘って隙間をあけて配設されていることを特徴とする請求項1に記載のボトル。The bottle according to claim 1, wherein the rib is disposed with a gap over the entire circumference between the rib and the side wall. 前記底壁部における前記側壁部の内周縁との接続部分は、径方向の内側に向けて窪む曲面状に形成されていることを特徴とする請求項1又は2に記載のボトル。3. The bottle according to claim 1, wherein a connection portion between the bottom wall portion and the inner peripheral edge of the side wall portion is formed in a curved shape that is recessed inward in the radial direction. 前記胴部の下端に連なり該胴部の下端開口部を閉塞する底部を備え、
前記底部の底壁部は、
外周縁部に位置する接地部と、
該接地部に径方向の内側から連なり上方に向けて延びる立ち上がり周壁部と、
該立ち上がり周壁部の上端部から径方向の内側に向けて突出する環状の可動壁部と、
該可動壁部の径方向の内端部から上方に向けて延びる陥没周壁部と、を備え、
前記可動壁部は、前記陥没周壁部を上下方向に移動させるように、前記立ち上がり周壁部との接続部分を中心に回動自在に配設されていることを特徴とする請求項1から3のいずれか1項に記載のボトル。
A bottom portion that is continuous with the lower end of the body portion and closes the lower end opening of the body portion;
The bottom wall of the bottom is
A grounding portion located at the outer periphery,
A rising peripheral wall portion extending from the inside in the radial direction to the grounding portion and extending upward;
An annular movable wall portion projecting radially inward from the upper end portion of the rising peripheral wall portion;
A depressed peripheral wall portion extending upward from a radially inner end portion of the movable wall portion,
The said movable wall part is arrange | positioned so that rotation is possible centering | focusing on the connection part with the said rising surrounding wall part so that the said depression surrounding wall part may be moved to an up-down direction . The bottle according to any one of the above.
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EP13754235.3A EP2821349B1 (en) 2012-02-29 2013-02-27 Bottle
US14/375,954 US10017312B2 (en) 2012-02-29 2013-02-27 Bottle
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AU2013226970A AU2013226970B2 (en) 2012-02-29 2013-02-27 Bottle
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AUPN605595A0 (en) * 1995-10-19 1995-11-09 Amcor Limited A hot fill container
US6585125B1 (en) * 2002-07-03 2003-07-01 Ball Corporation Hot fill container with vertically asymmetric vacuum panels
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