JP3816285B2

JP3816285B2 - Flexible bottle container

Info

Publication number: JP3816285B2
Application number: JP36341399A
Authority: JP
Inventors: 英哉鈴木; 義則稲川
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 1999-12-21
Filing date: 1999-12-21
Publication date: 2006-08-30
Anticipated expiration: 2019-12-21
Also published as: JP2001171638A

Description

【０００１】
【発明の属する技術分野】
本発明は可撓性ボトル容器に関し、特に内容物を使用した後の空容器の処理を容易にした可撓性ボトル容器に関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
ボトル容器は、飲料水や洗剤等の液体、あるいは粉石鹸等の粉粒体を収容する容器として多用されている。これらの容器は、内容物が空になった場合に廃棄されたり、回収して資源として再利用されたりすることになるが、空容器は嵩張るためこれを押しつぶして廃棄あるいは回収することが望ましい。
【０００３】
これらのボトル容器を手作業で簡単に押しつぶすことができるような可撓性を有する形態にするには、ボトル容器の肉厚を薄くすることが考えられるが、肉厚を薄くするだけでは、強度や保形性が失われ、破損しやすくなったり、持ちにくくなったりして取扱いに不便になる。
【０００４】
本発明は、ボトル容器の肉厚を薄くした場合でも十分な強度を保持することができ、持ちやすい形状及び剛性を備えると共に、手作業によって容易に平坦に押しつぶすことのできる可撓性ボトル容器の提供を目的とする。
【０００５】
【発明を解決するための手段】
本発明は、ボトル本体の周面に帯状に延設された山折り誘導部を、少なくとも前記周面における互いに対向する位置に一対有しており、該山折り誘導部にボトル本体を平坦に押しつぶす際の山折り線が形成されるようにした可撓性ボトル容器であって、前記山折り誘導部は、ボトル本体の上下方向に平行に延設された一対の凹溝と、該一対の凹溝に挟まれることによって設けられる凸リブとからなり、前記山折り線が前記凸リブにより誘導形成され、前記ボトル本体の周面の下端部分には、前記ボトル本体の底面部を上方に折り畳むための前記山折り線と垂直な谷折り線を誘導形成する押圧誘導部が形成され、且つ該押圧誘導部は、指先で覆われる大きさの一対の凹陥部からなり、該一対の凹陥部は、誘導形成される谷折り線に沿ってその頂部が外側を向いた形状を有し、前記谷折り線に沿って間隔をおいて設けられている可撓性ボトル容器を提供することにより、上記目的を達成したものである。
【０００６】
上記記載における可撓性ボトル容器は、使用時にそのボトル形状を保持できる保形性を備えると共に、手で容易に押し潰すことができる程度の可撓性を有する種々のボトル容器であって、薄い樹脂製のボトル容器や紙等から作られるパルプモールド製のボトル容器等が含まれる
【０００７】
【発明の実施の形態】
本発明の好ましい実施形態に係る可撓性ボトル容器１０は、図１及び図２に示すように、例えば内容液として液体洗剤を収容した詰替用のボトル容器であって、内部が満量５００ｍｌ程度の液体収容部となる合成樹脂製のボトル本体１１と、このボトル本体１１の上端部の口頸部１２に装着されるキャップ（図示せず）とからなる。この可撓性ボトル容器１０は、これを手で持って内容液を洗剤容器等に補充し、内容液が空になったら、これを手で折り畳んで平坦に押しつぶした後に、回収あるいは廃棄されることになる。
【０００８】
本実施形態の可撓性ボトル容器１０は、ボトル本体１１の周面に帯状に延設された山折り誘導部１３を有しており、この山折り誘導部１３にボトル本体１１を平坦に押しつぶす際の山折り線２０（図３参照）が形成される。また、山折り誘導部１３は、ボトル本体１１の上下方向に平行に延設された一対の凹溝１４と、これらの一対の凹溝１４に挟まれることによって設けられる凸リブ１５とからなり、山折り線２０は凸リブ１５により誘導形成されることになる。
【０００９】
ボトル本体１１は、ブロー成形等により形成された、胴部１６の肉厚が０．１〜１．０ｍｍ程度の薄肉中空ボトルであって、一対の長辺部が外側に緩やかに湾曲すると共に角部が面取りされた縦５０ｍｍ、横６５ｍｍの大きさの略矩形断面形状を有する。また、ボトル本体１１の上端部は半球状の肩部１８となっていて滑らかに口頸部１２に接続していると共に、ボトル本体１１の下端部は、外側に僅かに拡がって底面部１７に接続していることにより、可撓性ボトル容器１０を立設させた際の安定感を向上させている。なお、ボトル本体１１の底面部１７から口頸部１２のつけ根までの高さは１７５ｍｍとなっている。
【００１０】
本実施形態によれば、山折り誘導部１３は、略矩形断面形状の短辺部に相当する胴部１６の左右一対の側面部１９における互いに対向する位置に、ボトル本体１１の上下方向に延設されて各々設けられている。山折り誘導部１３を構成する一対の凹溝１４は、幅１０ｍｍ、深さ２ｍｍの略三角形断面の凹溝であって、側面部１９に沿って上下方向に１００ｍｍの長さで、側面部１９の中央を対称軸として互いに平行に配設されると共に、その上下の端部で深さが次第に浅くなって側面部１９の表面に擦り付けられる。凸リブ１５は、両側を一対の凹溝１４によって挟まれることにより、これらの中央に設けられる。すなわち、凸リブ１５は、一対の凹溝１４の各内側の斜面を当該凸リブ１５の斜面として、底辺の幅（一対の三角形断面の凹溝１４の頂部の間の幅）が１０ｍｍ、頂辺の幅が４ｍｍ、高さが２ｍｍの略台形形状の凸条として、側面部１９の表面から外側に突出することなく側面部１９に沿って上下方向に延設して形成される。
【００１１】
また、本実施形態によれば、略矩形断面形状の長辺部に相当する胴部１６の表裏一対の表面部２１には、当該胴部１６の下端部分に位置して、一対の凹陥部２２からなる押圧誘導部２３が、互いに対向する位置に各々設けられている。この押圧誘導部２３は、ボトル本体１１の底面部１７を上方に折り畳むための、上記山折り線２０と垂直な方向に延設される谷折り線２４（図３参照）を誘導形成するものである。各押圧誘導部２３を構成する一対の凹陥部２２は、各々、誘導形成される谷折り線２４に沿ってその頂部が外側を向いた、底辺が１２ｍｍ、高さが１４ｍｍの指先で覆いうる大きさの略三角形の平面形状を有している。また、一対の凹陥部２２は、各底辺の間に１４ｍｍの間隔をおいて、表面部２１の中央を対称軸として反対側を向いて対称に設けられている。さらに、各凹陥部２２は、深さ２ｍｍの浅い三角錐形状に陥没しており、手の指で表面部２１を触った際の感触によって、凹陥部２２を容易に探し当てることができるようになっている。なお、一対の凹陥部２２の頂部が指向する谷折り線２４の延長上に上記凹溝１４の下端を合致させて、ボトル本体１１の側面部１９に上記山折り誘導部１３が設けられている。
【００１２】
さらに、本実施形態によれば、ボトル本体１１の左右一対の側面部１９には、山折り誘導部１３の下端と底面部１７との間において、ハの字状に配設された一対の凹溝２７からなる底部折り畳み誘導部２８が、互いに対向する位置に各々設けられている。この底部折り畳み誘導部２８は、ボトル本体１１の底面部１７を上方に折り畳む際に、側面部１９と底面部１７との接続部分の歪みを吸収する三角形状のデルタ部２９（図３参照）を、底面部１７の両側に形成しつつ折り畳めるように誘導するものである。各底部折り畳み誘導部２８を構成する一対の凹溝２７は、各々、幅が４ｍｍ、長さが１５ｍｍの大きさの半円状断面の溝であって、側面部１９の中央を対称軸として反対側に傾斜して対称に設けられる。
【００１３】
上述の構成を有する本実施形態の可撓性ボトル容器１０によれば、ボトル本体１１の周面である側面部１９に、一対の凹溝１４と、この一対の凹溝１４に挟まれることによって設けられる凸リブ１５とからなる山折り誘導部１３を有しているので、山折り誘導部１３の凹溝１４と凸リブ１５による凹凸面によって容器の剛性が高められると共に、山折り誘導部１３は上下方向に延設された柱の役割を果たすことになり、ボトル本体１１が手で押しつぶすことが出来る程度の薄肉の中空容器の場合であっても、十分な強度及び保形性が保持されることになる。
【００１４】
また、ボトル本体１１は、山折り誘導部１３による帯状の凹凸面により、適度な剛性感と共に指のかかりが良くなって手で持ちやすい形態となっているため、可撓性ボトル容器１０の取り扱いやすさが向上する。なお、凸リブ１５は、一対の凹溝１４に挟まれて、側面部１９の表面から突出することなく設けられていることにより、見た目の良い形状となって美観を向上させている。
【００１５】
さらに、本実施形態の可撓性ボトル容器１０によれば、内容液が無くなって空になった場合に、これを以下の方法によって容易に平坦に押しつぶした後に、廃棄したり回収したりすることができる。すなわち、空になった可撓性ボトル容器１０からキャップを取り外してボトル本体１１を両手で持ち、表側の表面部２１の一対の凹陥部２２に親指を、背側の表面部２１の一対の凹陥部２２に人差し指を各々押し当て、これらが近づくように圧力を加えながらボトル本体１１の下部を押しつぶしつつ、底面部１７を表側上方に折り畳むようにする（図３参照）。これにより、親指が押し当てられていた一対の凹陥部２２からなる押圧誘導部２３によって、表側の表面部２１には谷折り線２４が誘導形成され、この谷折り線２４は、ボトル本体１１の側面部１９を外側に押し拡げつつ山折り誘導部１３の下端に至ることになる。また上方に折り畳まれた底面部１７の両側には、剛性が高められた底部折り畳み誘導部２８の外側を折れ線として、三角形状のデルタ部２９が形成される。
【００１６】
次に、上記谷折り線２４が到達した山折り誘導部１３の下端部分を山折り開始部分として、凸リブ１５が外側に凸となるようにしつつ、ボトル本体１１の側面部１９を手の指で二つ折りに押しつぶしながら当該押圧部を上方にスライド移動して行く。これによって、図３に示すように、凸リブ１５により山折り線２０が誘導形成されつつ、ボトル本体１１は平坦な形状にスムースに押しつぶされて行く。山折り誘導部１３の全長に亘ってボトル本体１１の側面部１９を押しつぶしたら、上端部の半球状の肩部１８を口頸部１２と共に表側に折り曲げ、コンパクトにまとめあげた後に、ボトル本体１１は容易且つ効率良く廃棄あるいは回収されることになる。
【００１７】
すなわち、本実施形態の可撓性ボトル容器１０によれば、ボトル容器の肉厚を薄くした場合でも十分な強度を保持することができ、持ちやすい形状及び剛性を備えると共に、手作業によって底面部を折り畳みつつ当該底面部を含めて容易に平坦に押しつぶすことができる。
【００１８】
なお、本発明は上記実施形態に限定されることなく種々の変更が可能である。例えば、山折り誘導部が延設されるボトル本体は必ずしも矩形断面形状を有する必要はなく、円形や楕円形、長円形等の断面形状を有するものであっても良い。また、山折り誘導部は、必ずしもボトル本体の周面における互いに対向する位置に一対設ける必要はなく、一箇所或いは３箇所以上に設けることもできる。さらに、底部折り畳み誘導部は必ずしも設ける必要はなく、押圧誘導部はボトル本体の表面側にのみ設けても良い。さらにまた、本発明の可撓性ボトル容器は、薄肉の樹脂ボトル容器に限定されることなく、手作業で押しつぶして廃棄される種々のボトル容器として採用することもできる。
【００１９】
【発明の効果】
本発明の可撓性ボトル容器によれば、ボトル容器の肉厚を薄くした場合でも十分な強度を保持することができ、持ちやすい形状及び剛性を備えると共に、手作業によって底面部を含めて容易に平坦に押しつぶすことができる。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る可撓性ボトル容器を示す略示斜視図である。
【図２】本発明の一実施形態に係る可撓性ボトル容器を示す、（ａ）は正面図、（ｂ）は側面図、（ｃ）は（ａ）のＡ−Ａに沿った断面図である。
【図３】本発明の一実施形態に係る可撓性ボトル容器を押しつぶした状態を示す斜視図である。
【符号の説明】
１０可撓性ボトル容器
１１ボトル本体
１３山折り誘導部
１４凹溝
１５凸リブ
１６胴部
１７底面部
１８肩部
１９側面部
２０山折り線
２１表面部
２２凹陥部
２３押圧誘導部
２４谷折り線
２７凹溝
２８底部折り畳み誘導部
２９デルタ部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flexible bottle container, and more particularly to a flexible bottle container that facilitates processing of an empty container after the contents are used.
[0002]
[Prior art and problems to be solved by the invention]
Bottle containers are often used as containers for storing liquids such as drinking water and detergents, or powder particles such as powdered soap. These containers are discarded when the contents become empty, or are collected and reused as resources. However, since empty containers are bulky, it is desirable to crush them for disposal or collection.
[0003]
To make these bottle containers flexible enough to be easily crushed by hand, it is conceivable to reduce the wall thickness of the bottle containers. It loses its shape and retains its shape, making it easy to break and difficult to hold, making it inconvenient to handle.
[0004]
The present invention provides a flexible bottle container that can maintain a sufficient strength even when the thickness of the bottle container is reduced, has a shape and rigidity that are easy to hold, and can be easily flattened manually. For the purpose of provision.
[0005]
[Means for Solving the Invention]
The present invention has a pair of mountain fold guiding portions extending in a belt shape on the peripheral surface of the bottle main body at positions facing each other at least on the peripheral surface, and the bottle main body is crushed flat on the mountain fold guiding portion. A flexible bottle container in which a mountain fold line is formed, wherein the mountain fold guiding part includes a pair of concave grooves extending in parallel with the vertical direction of the bottle body, and the pair of concave parts. A convex rib provided by being sandwiched between the grooves, the mountain fold line is guided and formed by the convex rib , and the bottom portion of the bottle body is folded upward at the lower end portion of the peripheral surface of the bottle body. A pressure guiding portion for guiding and forming a valley fold line perpendicular to the mountain fold line is formed, and the pressure guiding portion is composed of a pair of recessed portions sized to be covered with a fingertip, the pair of recessed portions being The apex along the valley fold line, formed by induction There has a shape facing outwards, by providing a flexible bottle container are spaced along the valley fold line is obtained by achieving the above object.
[0006]
The flexible bottle containers in the above description are various bottle containers having a shape retaining property capable of holding the bottle shape at the time of use and having a flexibility that can be easily crushed by hand. Examples include plastic bottle containers and pulp mold bottle containers made from paper.
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1 and 2, a flexible bottle container 10 according to a preferred embodiment of the present invention is a refill bottle container containing a liquid detergent as a content liquid, for example, and the inside is a full 500 ml. A bottle body 11 made of a synthetic resin serving as a liquid storage portion and a cap (not shown) attached to the mouth and neck portion 12 at the upper end of the bottle body 11. The flexible bottle container 10 is held by hand to replenish the content liquid into a detergent container or the like, and when the content liquid becomes empty, it is folded by hand and flattened and then collected or discarded. It will be.
[0008]
The flexible bottle container 10 of the present embodiment has a mountain fold guiding portion 13 extending in a belt shape on the peripheral surface of the bottle main body 11, and the bottle main body 11 is flatly crushed by the mountain fold guiding portion 13. A sharp mountain fold line 20 (see FIG. 3) is formed. Further, the mountain fold guiding portion 13 includes a pair of concave grooves 14 extending in parallel with the bottle body 11 in the vertical direction, and convex ribs 15 provided by being sandwiched between the pair of concave grooves 14. The mountain fold line 20 is guided and formed by the convex rib 15.
[0009]
The bottle body 11 is a thin-walled hollow bottle formed by blow molding or the like, and has a body portion 16 with a thickness of about 0.1 to 1.0 mm. The portion has a substantially rectangular cross-sectional shape with a chamfered portion of 50 mm in length and 65 mm in width. In addition, the upper end of the bottle body 11 is a hemispherical shoulder 18 and is smoothly connected to the mouth-and-neck part 12, and the lower end of the bottle body 11 slightly expands outward to the bottom surface part 17. By connecting, the sense of stability when the flexible bottle container 10 is erected is improved. In addition, the height from the bottom face part 17 of the bottle main body 11 to the root of the mouth neck part 12 is 175 mm.
[0010]
According to the present embodiment, the mountain fold guiding portion 13 extends in the vertical direction of the bottle body 11 at positions facing each other in the pair of left and right side surface portions 19 of the body portion 16 corresponding to the short side portion having a substantially rectangular cross-sectional shape. Each is provided. The pair of concave grooves 14 constituting the mountain fold guiding portion 13 is a concave groove having a width of 10 mm and a depth of 2 mm and having a substantially triangular cross section, and has a length of 100 mm in the vertical direction along the side surface portion 19. Are arranged parallel to each other with the center of the axis being symmetrical, and the depth gradually decreases at the upper and lower ends thereof and is rubbed against the surface of the side surface portion 19. The convex rib 15 is provided in the center by sandwiching both sides between the pair of concave grooves 14. That is, the convex rib 15 has the slopes of the inner sides of the pair of concave grooves 14 as the slopes of the convex ribs 15, the width of the base (the width between the tops of the pair of triangular grooves 14), and the top side. As a substantially trapezoidal ridge having a width of 4 mm and a height of 2 mm, it is formed to extend in the vertical direction along the side surface portion 19 without protruding outward from the surface of the side surface portion 19.
[0011]
In addition, according to the present embodiment, the pair of front and back surface portions 21 of the trunk portion 16 corresponding to the long side portion of the substantially rectangular cross-sectional shape is positioned at the lower end portion of the trunk portion 16 and the pair of recessed portions 22. The pressure guide portions 23 are respectively provided at positions facing each other. The pressure guiding portion 23 guides and forms a valley fold line 24 (see FIG. 3) extending in a direction perpendicular to the mountain fold line 20 for folding the bottom surface portion 17 of the bottle body 11 upward. is there. Each of the pair of recessed portions 22 constituting each pressing guide portion 23 is large enough to be covered with a fingertip whose top is directed outward along the valley fold line 24 formed by induction, the bottom is 12 mm, and the height is 14 mm. It has a substantially triangular planar shape. The pair of recessed portions 22 are provided symmetrically with the center of the surface portion 21 as the axis of symmetry and facing the opposite side with an interval of 14 mm between the bottom sides. Furthermore, each recessed part 22 is depressed in a shallow triangular pyramid shape with a depth of 2 mm, and the recessed part 22 can be easily found by the touch when the surface part 21 is touched with a finger of a hand. ing. The mountain fold guiding portion 13 is provided on the side surface portion 19 of the bottle main body 11 so that the lower end of the concave groove 14 is aligned with the extension of the valley fold line 24 to which the top portions of the pair of recessed portions 22 are directed. .
[0012]
Furthermore, according to the present embodiment, the pair of left and right side surface portions 19 of the bottle body 11 are provided with a pair of recesses disposed in a C shape between the lower end of the mountain fold guiding portion 13 and the bottom surface portion 17. The bottom folding guide portions 28 formed of the grooves 27 are provided at positions facing each other. The bottom folding guide portion 28 has a triangular delta portion 29 (see FIG. 3) that absorbs distortion at the connection portion between the side surface portion 19 and the bottom surface portion 17 when the bottom surface portion 17 of the bottle body 11 is folded upward. In addition, it is guided to be folded while being formed on both sides of the bottom surface portion 17. Each of the pair of concave grooves 27 constituting each bottom folding guide portion 28 is a semicircular cross-sectional groove having a width of 4 mm and a length of 15 mm, and is opposed to the center of the side surface portion 19 as an axis of symmetry. Inclined to the side and provided symmetrically.
[0013]
According to the flexible bottle container 10 of the present embodiment having the above-described configuration, the pair of concave grooves 14 and the pair of concave grooves 14 are sandwiched between the side surface portion 19 that is the peripheral surface of the bottle body 11. Since it has the mountain fold guiding portion 13 formed of the convex rib 15 provided, the rigidity of the container is enhanced by the concave and convex surfaces by the concave groove 14 and the convex rib 15 of the mountain fold guiding portion 13, and the mountain fold guiding portion 13. Will serve as a pillar extending in the vertical direction, and even if the bottle body 11 is a thin hollow container that can be crushed by hand, sufficient strength and shape retention are maintained. Will be.
[0014]
In addition, the bottle body 11 has a band-like uneven surface formed by the mountain fold guiding portion 13 so that it has a moderate rigidity and is easy to hold with a finger. Ease is improved. In addition, the convex rib 15 is sandwiched between the pair of concave grooves 14 and is provided without protruding from the surface of the side surface portion 19, so that the appearance is improved and the appearance is improved.
[0015]
Furthermore, according to the flexible bottle container 10 of the present embodiment, when the content liquid is exhausted and emptied, it can be easily crushed flat by the following method, and then discarded or collected. Can do. That is, the cap is removed from the emptied flexible bottle container 10 and the bottle body 11 is held with both hands, a thumb is placed on the pair of recessed portions 22 of the front surface portion 21, and a pair of recessed portions on the back surface portion 21. The index finger is pressed against each of the portions 22, and the bottom surface portion 17 is folded upwardly while crushing the lower portion of the bottle body 11 while applying pressure so that they approach each other (see FIG. 3). As a result, a trough fold line 24 is guided and formed on the front surface portion 21 by the pressing guide portion 23 including the pair of recessed portions 22 to which the thumb is pressed, and the trough fold line 24 is formed on the bottle body 11. It will reach the lower end of the mountain fold guiding portion 13 while expanding the side surface portion 19 outward. Further, on both sides of the bottom surface portion 17 folded upward, a triangular delta portion 29 is formed with the outside of the bottom folding guide portion 28 with increased rigidity taken as a fold line.
[0016]
Next, using the lower end portion of the mountain fold guiding portion 13 where the valley fold line 24 has reached as a mountain fold starting portion, the side surface portion 19 of the bottle body 11 is fingered while the convex rib 15 is convex outward. Then, the crushing portion is slid upward while being crushed in half. As a result, as shown in FIG. 3, while the mountain fold line 20 is guided and formed by the convex ribs 15, the bottle body 11 is smoothly crushed into a flat shape. After crushing the side part 19 of the bottle body 11 over the entire length of the mountain fold guiding part 13, the hemispherical shoulder part 18 at the upper end part is folded together with the mouth neck part 12 to the front side, and the bottle body 11 It is easily and efficiently discarded or collected.
[0017]
That is, according to the flexible bottle container 10 of the present embodiment, it is possible to maintain sufficient strength even when the thickness of the bottle container is reduced, and to have a shape and rigidity that are easy to hold, and by hand, the bottom portion Can be flattened easily including the bottom portion while folding .
[0018]
The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the bottle body on which the mountain fold guiding portion is extended does not necessarily have a rectangular cross-sectional shape, and may have a cross-sectional shape such as a circle, an ellipse, or an oval. Moreover, it is not always necessary to provide a pair of mountain fold guiding portions at positions facing each other on the peripheral surface of the bottle body, and the mountain fold guiding portions can also be provided at one place or three or more places. Furthermore, the bottom folding guide part is not necessarily provided, and the pressing guide part may be provided only on the surface side of the bottle body. Furthermore, the flexible bottle container of the present invention is not limited to a thin resin bottle container, and can be adopted as various bottle containers that are manually crushed and discarded.
[0019]
【The invention's effect】
According to the flexible bottle container of the present invention, sufficient strength can be maintained even when the thickness of the bottle container is reduced, and it has an easy-to-hold shape and rigidity and is easy to include the bottom part by hand. Can be crushed flat.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a flexible bottle container according to an embodiment of the present invention.
2A and 2B show a flexible bottle container according to an embodiment of the present invention, in which FIG. 2A is a front view, FIG. 2B is a side view, and FIG. 2C is a cross-sectional view along AA in FIG. It is.
FIG. 3 is a perspective view showing a state in which a flexible bottle container according to an embodiment of the present invention is crushed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Flexible bottle container 11 Bottle main body 13 Mountain fold guidance | induction part 14 Concave groove 15 Convex rib 16 Trunk part 17 Bottom part 18 Shoulder part 19 Side part 20 Mountain fold line 21 Surface part 22 Concave part 23 Press guide part 24 Valley fold line 27 concave groove 28 bottom folding guide part 29 delta part

Claims

A pair of mountain fold guiding portions extending in a belt shape on the peripheral surface of the bottle main body is provided at least at positions facing each other on the peripheral surface, and the mountain fold when the bottle main body is crushed flatly on the mountain fold guiding portion A flexible bottle container in which a line is formed,
The mountain fold guiding portion includes a pair of concave grooves extending parallel to the vertical direction of the bottle body, and a convex rib provided by being sandwiched between the pair of concave grooves, and the mountain fold line is the convex Inducted by ribs ,
The lower end portion of the peripheral surface of the bottle body is formed with a pressure guide portion that guides and forms a valley fold line perpendicular to the mountain fold line for folding the bottom surface portion of the bottle body upward,
And the pressing guide part is composed of a pair of recessed parts sized to be covered with a fingertip, and the pair of recessed parts has a shape in which the top part faces outward along a valley fold line formed by induction, A flexible bottle container provided at intervals along the valley fold line .

The said mountain fold | leading induction | guidance | derivation part is provided in the side part of the said bottle main body by making the lower end of the said concave groove agree | coincide on the extension of the valley fold line which the top part of the said pair of concave part points, and is possible Flexible bottle container.

On the pair of left and right side portions of the bottle body, a bottom fold guiding portion formed of a pair of concave grooves disposed in a C shape between the lower end of the mountain fold guiding portion and the bottom surface portion is mutually connected. The flexible bottle container of Claim 1 or 2 provided in the position which opposes, respectively .