JP2023083683A

JP2023083683A - Exterior box and bag-in box

Info

Publication number: JP2023083683A
Application number: JP2021197517A
Authority: JP
Inventors: 道代長峯; Michiyo Nagamine
Original assignee: Rengo Co Ltd
Current assignee: Rengo Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2023-06-16

Abstract

To provide an exterior box that can keep a spout exposed through an opening portion.SOLUTION: An exterior box 3 stores an inner bag 2 including a spout 2A. The exterior box 3 includes an opening portion 30 that is drilled in an inclined wall 16 to expose the spout 2A, a first side piece 32 that is formed between a pair of notch lines cut into the inclined wall 16 from the opening portion 30, is provided to allow opening and closing around a hinge line L12 connecting between tip ends of the pair of the notch lines, is opened when the spout 2A is exposed from the opening portion 30, and is closed after exposing the spout 2A from the opening portion 30, and a second side piece 33 that is formed larger than the first side piece 32, is connected to the inclined wall 16 via a lamination folding line L14, is folded inward along the lamination folding line L14, and is kept in a state of laminated with the closed first side piece 32 and the inclined wall 16.SELECTED DRAWING: Figure 2

Description

特許法第３０条第２項適用申請有り令和３年８月１７日に双日食料株式会社に販売Applied for application of Article 30, Paragraph 2 of the Patent Act Sold to Sojitz Foods Co., Ltd. on August 17, 2021

本発明は、内袋を収納する外装箱およびバッグインボックスに関する。 TECHNICAL FIELD The present invention relates to an exterior box and a bag-in-box for housing an inner bag.

特許文献１には、内容物を充填した口栓付き内袋と、内袋を収納する外装箱とからなるバッグインボックスが開示されている。外装箱の蓋部には、内袋の口栓の基部（付け根部分）を嵌合させる口栓取出部が形成されている。また、口栓取出部のまわりには、蓋部に切り込みを入れて一対の片部が形成されている。一対の片部は、口栓を外部に引き出す際に観音開きにされ、閉じられることで口栓取出部に嵌合した口栓の基部に係合する。 Patent Literature 1 discloses a bag-in-box consisting of an inner bag with a spout filled with contents and an exterior box for housing the inner bag. The lid portion of the exterior box is formed with a plug extracting portion into which the base (root portion) of the plug of the inner bag is fitted. In addition, a pair of pieces are formed around the plug extracting portion by cutting the lid portion. The pair of pieces are double-opened when the plug is pulled out, and are closed to engage with the base of the plug fitted to the plug extracting portion.

特開２０１７－１７２８号公報Japanese Unexamined Patent Application Publication No. 2017-1728

しかしながら、上記した外装箱では、各々の片部が１枚の板であるため、折れたり撓んだりし易かった。このため、口栓（注出口）の開閉操作の繰り返しや、バッグインボックスの移動時の振動等によって一対の片部が開いてしまうことがあった。一対の片部が開くことで、口栓取出部（開口部）から口栓が外れてしまうことがあった。 However, in the outer box described above, since each piece is a single plate, it is likely to break or bend. For this reason, the pair of pieces may be opened due to repeated opening and closing operations of the spout (spout), vibration during movement of the bag-in-box, and the like. The opening of the pair of pieces sometimes causes the plug to come off from the plug extracting portion (opening).

本発明は、上記事情を考慮し、注出口を開口部から露出させた状態に保持することができる外装箱およびバッグインボックスを提供する。 SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides an outer box and a bag-in-box that can hold the spout exposed from the opening.

本発明は、注出口を有する内袋を収納する外装箱であって、前記外箱体を構成する壁部に穿設され、前記注出口を露出させる開口部と、前記開口部から前記壁部に切り込まれた一対の切目線の間に形成され、一対の前記切目線の先端の間を結ぶヒンジ線を中心に開閉可能に設けられ、前記開口部から前記注出口を露出させる際に開かれ、前記開口部から前記注出口を露出させた後に閉じられる第１側片と、前記第１側片よりも大きく形成され、前記壁部に積層折線を介して連設され、前記積層折線に沿って内側または外側に折り曲げられ、閉じられた前記第１側片と前記壁部とに積層された状態に保持される第２側片と、を備えている。 The present invention is an exterior box for storing an inner bag having a spout, comprising: an opening formed in a wall portion constituting the outer box body to expose the spout; It is formed between a pair of cut lines cut into a pair of cut lines, is provided to be openable and closable around a hinge line connecting between the tips of the pair of cut lines, and opens when exposing the spout from the opening a first side piece that is closed after exposing the spout from the opening; and a first side piece that is formed larger than the first side piece, is connected to the wall portion via a laminated fold line, and is connected to the laminated fold line. a second side piece that is folded inwardly or outwardly along and held in a state of being laminated on the closed first side piece and the wall portion.

この場合、前記第１側片には、前記ヒンジ線と平行に補助線が形成され、前記第１側片が閉じられる過程において前記補助線で外側に突き出すように屈曲されることで、前記第１側片の先端は前記注出口の基端部に向けられ、前記補助線で屈曲された前記第１側片が広げられ閉じられた状態になると、前記第１側片の先端は前記注出口の基端部に係合してもよい。 In this case, an auxiliary line is formed in the first side piece parallel to the hinge line, and the first side piece is bent so as to protrude outward at the auxiliary line in the process of closing the first side piece. The tip of the first side piece is directed toward the base end of the spout, and when the first side piece bent by the auxiliary line is expanded and closed, the tip of the first side piece is directed toward the spout. may engage the proximal end of the

この場合、前記第２側片は、その先端を前記注出口の基端部に係合させた状態で前記第１側片と前記壁部とに積層されてもよい。 In this case, the second side piece may be laminated on the first side piece and the wall portion with its tip end engaged with the base end portion of the spout.

この場合、一対の第１側壁と一対の第２側壁とを交互に連設して筒状に形成された周壁と、前記周壁の下面開口を閉塞する底部と、一対の前記第１側壁の上端に連設され、前記周壁の上面開口を閉塞し、ユーザによって把持される把手部を有する一対の天壁と、一対の前記第２側壁の上端に連設され、互いに内側に傾倒した姿勢で一対の前記天壁に連結される一対の傾斜壁と、を備え、前記開口部は、前記壁部としての一方の前記傾斜壁または一方の前記第２側壁の上部に形成され、前記第１側片は、前記開口部の上側に隣接し、一方の前記傾斜壁または一方の前記第２側壁から一方の前記傾斜壁に亘って形成され、前記第２側片は、一方の前記傾斜壁の上端に連設され、前記第１側片、前記第２側片および他方の前記傾斜壁には、それぞれ係止穴が穿設され、前記把手部には、重なり合った前記第１側片と前記第２側片との前記係止穴と、他方の前記傾斜壁の前記係止穴と、に係止される一対のフック部が形成されてもよい。 In this case, a pair of first side walls and a pair of second side walls are alternately connected to form a cylindrical peripheral wall, a bottom portion that closes a lower opening of the peripheral wall, and upper ends of the pair of first side walls. A pair of top walls connected to the upper surface opening of the peripheral wall and having a grip portion to be gripped by a user, and a pair of top walls connected to the upper ends of the pair of second side walls and tilted inward with each other. and a pair of inclined walls connected to the top wall of the first side piece, wherein the opening is formed in an upper part of one of the inclined walls or one of the second side walls as the wall part, and the first side piece is adjacent to the upper side of the opening and is formed from one of the inclined walls or one of the second side walls to one of the inclined walls, and the second side piece is formed at the upper end of the one of the inclined walls. Locking holes are formed in the first side piece, the second side piece, and the other inclined wall, and the handle portion has the first side piece and the second side piece that overlap each other. A pair of hook portions to be engaged with the engaging hole with the side piece and the engaging hole with the other inclined wall may be formed.

この場合、一対の第１側壁と一対の第２側壁とを交互に連設して筒状に形成された周壁と、前記周壁の上面開口を閉塞する天部と、一対の前記第２側壁の下端に連設され、前記周壁の下面開口の少なくとも一部を閉塞する一対の下内フラップと、一対の前記第１側壁の下端に連設され、前記下面開口の少なくとも一部を閉塞した一対の前記下内フラップの表面に積層される一対の下外フラップと、を備え、前記開口部は、前記壁部としての一方の前記第２側壁の下部に形成され、前記第１側片は、前記開口部の下方に隣接し、前記壁部としての一方の前記第２側壁または一方の前記第２側壁から一方の前記下内フラップに亘って形成され、前記第２側片は、一方の前記下内フラップの少なくとも一部として形成されてもよい。 In this case, a pair of first side walls and a pair of second side walls are alternately connected to form a cylindrical peripheral wall; A pair of lower inner flaps connected to the lower end and closing at least part of the lower surface opening of the peripheral wall, and a pair of lower inner flaps connected to the lower end of the pair of first side walls and closing at least part of the lower surface opening a pair of lower outer flaps laminated on the surface of the lower inner flap, the opening being formed in a lower portion of one of the second side walls as the wall, and the first side piece being the Adjacent to the lower side of the opening and formed from one of the second side walls as the wall or from one of the second side walls to one of the lower inner flaps, the second side piece It may be formed as at least part of the inner flap.

本発明に係るバッグインボックスは、注出口を有する内袋と、前記内袋を収納する請求項１ないし５のいずれか１項に記載の外装箱と、を備えている。 A bag-in-box according to the present invention comprises an inner bag having a spout, and the exterior box according to any one of claims 1 to 5 for accommodating the inner bag.

本発明によれば、注出口を開口部から露出させた状態に保持することができる。 According to the present invention, the spout can be held exposed from the opening.

本発明の第１実施形態に係るバッグインボックスを示す斜視図である。1 is a perspective view showing a bag-in-box according to a first embodiment of the invention; FIG. 本発明の第１実施形態に係るバッグインボックスを示す側方断面図である。1 is a side sectional view showing a bag-in-box according to a first embodiment of the invention; FIG. 本発明の第１実施形態に係る外装箱のブランクを示す平面図である。1 is a plan view showing a blank of an outer box according to a first embodiment of the invention; FIG. 本発明の第１実施形態に係るバッグインボックスの組立手順（外装箱の封緘手順）を説明する斜視図である。It is a perspective view explaining the assembly procedure (sealing procedure of an exterior box) of the bag-in-box which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る外装箱の第２側片を第１側片の裏面に積層した状態を示す斜視図である。FIG. 4 is a perspective view showing a state in which the second side piece of the outer box according to the first embodiment of the present invention is laminated on the back surface of the first side piece; 本発明の第１実施形態に係る外装箱のフック部を係止穴に係止させた状態を示す斜視図である。FIG. 4 is a perspective view showing a state in which hook portions of the exterior box according to the first embodiment of the present invention are locked in locking holes; 本発明の第２実施形態に係る外装箱のブランクを示す平面図である。FIG. 5 is a plan view showing a blank of an outer box according to a second embodiment of the present invention; 本発明の第２実施形態に係るバッグインボックスを示す側方断面図である。FIG. 5 is a side sectional view showing a bag-in-box according to a second embodiment of the invention; 本発明の第３実施形態に係る外装箱のブランクを示す平面図である。FIG. 11 is a plan view showing a blank of an outer box according to a third embodiment of the invention; 本発明の第３実施形態に係るバッグインボックスを示す側方断面図である。FIG. 11 is a side sectional view showing a bag-in-box according to a third embodiment of the invention; 本発明の第３実施形態の変形例に係る外装箱のブランクを示す平面図である。FIG. 11 is a plan view showing a blank of an outer box according to a modified example of the third embodiment of the present invention; 本発明の第３実施形態の他の変形例に係る外装箱のブランクを示す平面図である。FIG. 11 is a plan view showing a blank of an outer box according to another modified example of the third embodiment of the present invention; 本発明の第１実施形態の変形例に係るバッグインボックスを示す側方断面図である。It is a side cross-sectional view showing a bag-in-box according to a modification of the first embodiment of the present invention.

以下、添付の図面を参照しつつ、本発明の実施形態について説明する。なお、図面に示すＦｒ、Ｒｒ、Ｌ、Ｒ、Ｕ、Ｄは、前、後、左、右、上、下を示している。前後方向、左右方向および上下方向は互いに直交している。本明細書では方向や位置を示す用語を用いるが、それらの用語は説明の便宜のために用いるものであって、本発明の技術的範囲を限定するものではない。また、方向や位置を示す用語は、主に、バッグインボックスの使用時における方向や位置を基準にしている。 Embodiments of the present invention will be described below with reference to the accompanying drawings. Note that Fr, Rr, L, R, U, and D shown in the drawings indicate front, rear, left, right, up, and down. The front-back direction, the left-right direction, and the up-down direction are orthogonal to each other. Terms indicating direction and position are used in this specification, but these terms are used for convenience of description and are not intended to limit the technical scope of the present invention. Also, terms indicating directions and positions are mainly based on directions and positions when the bag-in-box is used.

［バッグインボックスの概要］
図１ないし図３を参照して、バッグインボックス１の構成について説明する。図１はバッグインボックス１を示す斜視図である。図２はバッグインボックス１を示す側方断面図である。図３は外装箱３のブランク３Ａを示す平面図である。 [Overview of bag-in-box]
The configuration of the bag-in-box 1 will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is a perspective view showing a bag-in-box 1. FIG. FIG. 2 is a side sectional view showing the bag-in-box 1. FIG. 3 is a plan view showing a blank 3A of the outer box 3. FIG.

図１および図２に示すように、バッグインボックス１は、注出口２Ａを有する内袋２と、内袋２を収納する外装箱３と、を備えている。内袋２には、液体や粉体等（内容物（図示せず））が充填されている。外装箱３は概ね直方体状に形成されており、その上部にはユーザによって把持される把手部２６が設けられている。 As shown in FIGS. 1 and 2, the bag-in-box 1 includes an inner bag 2 having a spout 2A and an exterior box 3 that houses the inner bag 2. As shown in FIGS. The inner bag 2 is filled with liquid, powder, etc. (contents (not shown)). The exterior box 3 is formed in a substantially rectangular parallelepiped shape, and a grip portion 26 to be gripped by the user is provided on the upper portion thereof.

［内袋］
内袋２は、例えば、合成樹脂製のフィルム（または合成樹脂層と金属被膜とを積層した複合フィルムでもよい。）によって形成された袋である。内袋２には、内容物を外部に流出させるための注出口２Ａが固定されている。注出口２Ａには、回動式のキャップ２Ｂが設けられている。注出口２Ａの基端部（根本部分）には、段ボールシートが嵌合可能な隙間を挟んで２枚のフランジ部２Ｃが設けられている。 [inner bag]
The inner bag 2 is a bag formed of, for example, a synthetic resin film (or a composite film obtained by laminating a synthetic resin layer and a metal coating). A spout 2A is fixed to the inner bag 2 to allow the contents to flow out to the outside. The spout 2A is provided with a pivotable cap 2B. Two flange portions 2C are provided at the base end portion (root portion) of the spout 2A with a gap that allows fitting of a corrugated cardboard sheet therebetween.

［第１実施形態：外装箱］
外装箱３は、図３に示すブランク３Ａを組み立てることで形成される。ブランク３Ａは、例えば、波状の中しん９Ａの表裏に表ライナ９Ｂと裏ライナ９Ｃ（図２参照）とを貼り付けた紙製の両面段ボールシートから形成されている。ブランク３Ａは、例えば、一枚の段ボールシートを抜型等で打ち抜いて形成されている。なお、図３は、表ライナ９Ｂ側（外装箱３の外面側）を示している。本明細書では、段ボールの中しん９Ａと平行な方向を「段方向」と呼び、段方向（中しん９Ａ）に直交する方向を「流れ方向」と呼ぶこととする。図面に示す「Ｘ」は「段方向」を示し、「Ｙ」は「流れ方向」を示している。また、本明細書では、方向や位置を示す用語は、バッグインボックス１を使用する状態での方向や位置を指している。 [First embodiment: outer box]
The outer box 3 is formed by assembling blanks 3A shown in FIG. The blank 3A is formed of, for example, a double-faced corrugated cardboard sheet made of paper in which a front liner 9B and a back liner 9C (see FIG. 2) are pasted on the front and back of a corrugated medium 9A. The blank 3A is formed, for example, by punching out a cardboard sheet with a die or the like. Note that FIG. 3 shows the front liner 9B side (the outer surface side of the exterior box 3). In this specification, the direction parallel to the core 9A of the corrugated cardboard is called the "corrugation direction", and the direction perpendicular to the corrugation direction (the core 9A) is called the "flow direction". The "X" shown in the drawings indicates the "row direction" and the "Y" indicates the "flow direction". Moreover, in this specification, terms indicating directions and positions refer to directions and positions when the bag-in-box 1 is used.

［ブランク］
図３に示すように、ブランク３Ａは、一対の第１側壁１０と、一対の第２側壁１１と、第１閉塞片１２と、一対の第２閉塞片１３と、第３閉塞片１４と、一対の天壁１５と、一対の傾斜壁１６と、を備えている。 [blank]
As shown in FIG. 3, the blank 3A includes a pair of first side walls 10, a pair of second side walls 11, a first closing piece 12, a pair of second closing pieces 13, a third closing piece 14, A pair of top walls 15 and a pair of inclined walls 16 are provided.

＜第１側壁、第２側壁＞
一対の第１側壁１０と一対の第２側壁１１とは、第１折曲線Ｌ１を介して流れ方向の一方から他方に向かって交互に連設されている。各第１側壁１０は、１つの上角部を斜めに切り欠かれているが、概ね四角形状に形成されている。各第２側壁１１は、略長方形状に形成されている。一対の第１側壁１０の間に挟まれた一方（前方）の第２側壁１１は、切り欠き部分（傾斜辺）よりも下側で一対の第１側壁１０に連設され、他方（後方）の第２側壁１１よりも段方向に短く（低く）形成されている。各第１側壁１０の傾斜辺には、概ね三角形状の支持片１７が第２折曲線Ｌ２を介して連設されている。第１側壁１０の流れ方向の一端には、第１折曲線Ｌ１を介して継代片１８が連設されている。 <First side wall, second side wall>
The pair of first side walls 10 and the pair of second side walls 11 are alternately connected from one side to the other side in the flow direction via the first folding line L1. Each first side wall 10 has one upper corner obliquely cut away, but is generally formed in a rectangular shape. Each second side wall 11 is formed in a substantially rectangular shape. One (front) second side wall 11 sandwiched between the pair of first side walls 10 is connected to the pair of first side walls 10 below the notch (inclined side), and the other (rear) is formed shorter (lower) in the step direction than the second side wall 11 of the . A generally triangular support piece 17 is connected to the inclined side of each first side wall 10 via a second folding line L2. At one end of the first side wall 10 in the flow direction, a passage piece 18 is continuously provided via a first folding line L1.

＜第１～第３閉塞片＞
第１閉塞片１２は、第３折曲線Ｌ３を介して一対の第２側壁１１の間に挟まれた第１側壁１０の段方向の一端（下端）に連設されている。第１閉塞片１２は、先端側の流れ方向の中央部を略長方形状に切り欠かれているが、概ね略長方形状に形成されている。一対の第２閉塞片１３は、第３折曲線Ｌ３を介して一対の第２側壁１１の下端に連設されている。各第２閉塞片１３は、第１閉塞片１２側に略台形状の切り欠きを有する複雑な形状を成している。第３閉塞片１４は、第３折曲線Ｌ３を介して継代片１８側の第１側壁１０の下端に連設されている。第３閉塞片１４は、概ね略台形状に形成されている。 <First to third blocking pieces>
The first closing piece 12 is connected to one end (lower end) in the step direction of the first side wall 10 sandwiched between the pair of second side walls 11 via the third folding line L3. The first blocking piece 12 has a substantially rectangular notch at the center in the flow direction on the tip end side, and is generally formed in a substantially rectangular shape. The pair of second closing pieces 13 are connected to the lower ends of the pair of second side walls 11 via a third folding line L3. Each second blocking piece 13 has a complicated shape with a substantially trapezoidal notch on the first blocking piece 12 side. The third blocking piece 14 is connected to the lower end of the first side wall 10 on the passage piece 18 side via a third folding line L3. The third closing piece 14 is generally formed in a substantially trapezoidal shape.

＜天壁＞
一対の天壁１５は、一対の第１側壁１０の段方向の他端（上端）に連設されている。各天壁１５は、蓋壁２０と、把手片２１と、を有している。 <Ceiling wall>
The pair of top walls 15 are connected to the other ends (upper ends) of the pair of first side walls 10 in the step direction. Each ceiling wall 15 has a lid wall 20 and a handle piece 21 .

（蓋壁）
各蓋壁２０は、概ね四角形状に形成され、第４折曲線Ｌ４を介して第１側壁１０の上端に連設されている。各把手片２１は、把手穴２４を跨ぐようにアーチ状に形成されており、各蓋壁２０の先端側には、把手穴２４を埋めるように延出片２２が延設されている。右方の蓋壁２０の延出片２２は、把手穴２４を全て埋めるように形成され、左方の蓋壁２０の延出片２２は、把手穴２４の下側を埋めるように形成されている。 (lid wall)
Each lid wall 20 is formed in a generally rectangular shape and is connected to the upper end of the first side wall 10 via a fourth folding line L4. Each handle piece 21 is formed in an arch shape so as to straddle the handle hole 24 , and an extension piece 22 extends from the tip side of each lid wall 20 so as to fill the handle hole 24 . The extending piece 22 of the right cover wall 20 is formed to fill the handle hole 24 entirely, and the extending piece 22 of the left cover wall 20 is formed to fill the lower side of the handle hole 24. there is

（把手片）
各把手片２１は、略台形状の外形を成し、アーチ状（略Ｕ字状）に形成されている。各把手片２１は、第５折曲線Ｌ５を介して蓋壁２０（延出片２２を除く）の先端に連設されている。各把手片２１の流れ方向の両側には、一対のフック片２３が形成されている。一対のフック片２３は、各把手片２１から流れ方向の両側に突き出した後、屈曲して上方に延設されている。左方の把手片２１の把手穴２４の上縁には、２本の手提折線Ｌ１１を介して手提片２５が連設されている。手提片２５の先端は、延出片２２の先端に突き合わされている。 (handle piece)
Each handle piece 21 has a substantially trapezoidal outer shape and is formed in an arch shape (substantially U shape). Each handle piece 21 is connected to the tip of the lid wall 20 (excluding the extension piece 22) via the fifth folding line L5. A pair of hook pieces 23 are formed on both sides of each handle piece 21 in the flow direction. A pair of hook pieces 23 protrude from each handle piece 21 on both sides in the flow direction, and then bend and extend upward. A handle piece 25 is connected to the upper edge of the handle hole 24 of the left handle piece 21 via two handle folding lines L11. The tip of the handle piece 25 abuts the tip of the extension piece 22 .

＜傾斜壁＞
各傾斜壁１６は、第４折曲線Ｌ４を介して第２側壁１１の上端に連設されている。後方の傾斜壁１６は、先端に向かって幅狭くなる略台形状に形成されている。前方の傾斜壁１６は、下部を第２側壁１１と略同一幅の略長方形状とし、上部を先端に向かって幅狭くなる略台形状とし、全体として略六角形状に形成されている。前方の傾斜壁１６（外装箱３を構成する壁部）には、内袋２の注出口２Ａを露出させるための開口部３０が穿設されている。開口部３０は、略八角形状に形成された穴であり、傾斜壁１６の下部で流れ方向の中央部に開口している。 <Inclined wall>
Each inclined wall 16 is connected to the upper end of the second side wall 11 via the fourth folding line L4. The rear inclined wall 16 is formed in a substantially trapezoidal shape that narrows toward the tip. The front inclined wall 16 has a substantially rectangular lower portion having substantially the same width as that of the second side wall 11, and an upper portion having a substantially trapezoidal shape whose width narrows toward the tip, thus forming a substantially hexagonal shape as a whole. An opening 30 for exposing the spout 2A of the inner bag 2 is formed in the front inclined wall 16 (the wall forming the exterior box 3). The opening 30 is a hole formed in a substantially octagonal shape, and opens at the center in the flow direction at the lower portion of the inclined wall 16 .

（第１側片）
前方の傾斜壁１６には、開口部３０から上方に向かって平行（または左右対称）に一対の切目線３１が切り込まれ、一対の切目線３１の先端（上端）の間を結ぶようにヒンジ線Ｌ１２が形成されている。一対の切目線３１の間には、開口部３０よりも幅広い概ね四角形状の第１側片３２が形成されている。第１側片３２は開口部３０の上側に隣接し、第１側片３２の下端は開口部３０の上縁を成している。第１側片３２は、ヒンジ線Ｌ１２を中心に開閉（回動）可能に設けられている。詳細は後述するが、第１側片３２は、開口部３０から注出口２Ａを露出させる際に開かれ、開口部３０から注出口２Ａを露出させた後に閉じられる。また、第１側片３２の段方向（上下方向）の略中央には、ヒンジ線Ｌ１２と平行に補助線Ｌ１３が形成されている。なお、本明細書において、「平行」との用語は、厳密に平行であることを要求する意味ではなく、僅かな傾きを許容する意味である。 (First side piece)
In the front inclined wall 16, a pair of cut lines 31 are cut in parallel (or symmetrical) upward from the opening 30, and a hinge is formed so as to connect the tips (upper ends) of the pair of cut lines 31. A line L12 is formed. A generally rectangular first side piece 32 wider than the opening 30 is formed between the pair of cut lines 31 . The first side piece 32 is adjacent to the upper side of the opening 30 , and the lower end of the first side piece 32 forms the upper edge of the opening 30 . The first side piece 32 is provided so as to be openable and closable (rotatable) about the hinge line L12. Although the details will be described later, the first side piece 32 is opened when exposing the spout 2A from the opening 30, and is closed after exposing the spout 2A from the opening 30. As shown in FIG. Further, an auxiliary line L13 is formed parallel to the hinge line L12 at substantially the center of the first side piece 32 in the step direction (vertical direction). In this specification, the term "parallel" does not mean strictly parallel, but means that a slight inclination is allowed.

（第２側片）
各傾斜壁１６の先端（上端）には、２本の積層折線Ｌ１４を介して第２側片３３が連設されている。各第２側片３３は、第１側片３２よりも大きく形成されている。具体的には、各第２側片３３は、基端側を第１側片３２と略同一幅の略長方形状とし、先端側を先端に向かって幅広くなる略台形状とした多角形状に形成されている。つまり、各第２側片３３の先端側は、第１側片３２よりも幅広く形成されている。 (Second side piece)
A second side piece 33 is connected to the tip (upper end) of each inclined wall 16 via two laminated folding lines L14. Each second side piece 33 is formed larger than the first side piece 32 . Specifically, each of the second side pieces 33 is formed in a polygonal shape with a base end side having a substantially rectangular shape with substantially the same width as the first side piece 32 and a distal end side having a substantially trapezoidal shape that widens toward the distal end. It is That is, the tip side of each second side piece 33 is formed wider than the first side piece 32 .

（係止穴）
第１側片３２、各第２側片３３および後方（他方）の傾斜壁１６には、それぞれ係止穴３６が穿設されている。各係止穴３６は、傾斜壁１６等の流れ方向の中央部で、段方向に延びた略長方形状の穴（スリット）である。第１側片３２では、補助線Ｌ１３からヒンジ線Ｌ１２を越えた辺りまでの範囲に係止穴３６が形成されている。つまり、この係止穴３６は、第１側片３２から傾斜壁１６に亘って形成されている。後方の傾斜壁１６では、第４折曲線Ｌ４から積層折線Ｌ１４の近くまでの範囲に係止穴３６が形成されている。各第２側片３３では、先端側に寄った位置に係止穴３６が形成されている。各第２側片３３に開口した係止穴３６は、第２側片３３を２本の積層折線Ｌ１４で折り返した状態で、第１側片３２や傾斜壁１６に開口した係止穴３６に略一致する。 (locking hole)
Locking holes 36 are formed in the first side piece 32, the second side pieces 33, and the rear (other) inclined wall 16, respectively. Each locking hole 36 is a substantially rectangular hole (slit) extending in the step direction at the central portion of the inclined wall 16 or the like in the flow direction. In the first side piece 32, a locking hole 36 is formed in a range from the auxiliary line L13 to the area beyond the hinge line L12. That is, this locking hole 36 is formed from the first side piece 32 to the inclined wall 16 . A locking hole 36 is formed in the rear inclined wall 16 in a range from the fourth folding line L4 to near the lamination folding line L14. Each second side piece 33 is formed with a locking hole 36 at a position closer to the tip side. The locking holes 36 opened in the respective second side pieces 33 are connected to the locking holes 36 opened in the first side pieces 32 and the inclined wall 16 in a state in which the second side pieces 33 are folded back along the two laminated folding lines L14. Almost match.

なお、第１～第４折曲線Ｌ１～Ｌ４、手提折線Ｌ１１、ヒンジ線Ｌ１２、補助線Ｌ１３および積層折線Ｌ１４は、段ボールシートを裏ライナ９Ｃ側から厚み方向に潰した汎用罫線である。汎用罫線は、主に裏ライナ９Ｃを内側に向けるように段ボールシートを折り曲げる（正折りする）機能を有している。第５折曲線Ｌ５は、段ボールシートを表ライナ９Ｂ側から厚み方向に潰した逆罫線である。また、第５折曲線Ｌ５上には、切目が入れられている。逆罫線は、主に表ライナ９Ｂを内側に向けるように段ボールシートを折り曲げる（逆折りする）機能を有している。上記した第１折曲線Ｌ１等は、汎用罫線や逆罫線に限らず、ミシン刃線等、段ボールシートを所望の向きに折り曲げるための線であれば如何なるものでもよい。 The first to fourth folding lines L1 to L4, the hand folding line L11, the hinge line L12, the auxiliary line L13, and the laminated folding line L14 are general ruled lines formed by flattening the corrugated cardboard sheet in the thickness direction from the back liner 9C side. The general-purpose ruled lines have a function of folding (regularly folding) the corrugated cardboard sheet so that the back liner 9C faces inward. The fifth folding line L5 is a reverse ruled line formed by flattening the corrugated cardboard sheet in the thickness direction from the front liner 9B side. Further, a notch is made on the fifth folding line L5. The reverse ruled lines mainly have the function of folding (reverse folding) the cardboard sheet so that the front liner 9B faces inward. The above-described first folding lines L1 and the like are not limited to general-purpose ruled lines and reverse ruled lines, and may be any line for folding a corrugated cardboard sheet in a desired direction, such as a perforating edge line.

［バッグインボックスの組立］
次に、図１、図２、図４ないし図６を参照して、バッグインボックス１の組立手順について説明する。図４はバッグインボックス１の組立手順（外装箱３の封緘手順）を説明する斜視図である。図５は第２側片３３を第１側片３２の裏面に積層した状態を示す斜視図である。図６はフック部２７を係止穴３６に係止させた状態を示す斜視図である。なお、組立前の初期状態として、ブランク３Ａの流れ方向の両外側に位置する第１側壁１０と第２側壁１１とが第１折曲線Ｌ１で折り曲げられ、継代片１８が第２側壁１１の内面に接着され、外装箱３は二重に折り畳まれていることとする（図示せず）。 [Assembly of bag-in-box]
Next, the procedure for assembling the bag-in-box 1 will be described with reference to FIGS. FIG. 4 is a perspective view for explaining the procedure for assembling the bag-in-box 1 (the procedure for sealing the exterior box 3). FIG. 5 is a perspective view showing a state in which the second side piece 33 is laminated on the back surface of the first side piece 32. FIG. FIG. 6 is a perspective view showing a state in which the hook portion 27 is locked in the locking hole 36. As shown in FIG. In addition, as an initial state before assembly, the first side wall 10 and the second side wall 11 positioned on both outer sides in the flow direction of the blank 3A are bent along the first folding line L1, and the extension piece 18 is formed on the second side wall 11. It is assumed that the outer box 3 is double-folded (not shown).

作業者は、一対の第１側壁１０と一対の第２側壁１１とを第１折曲線Ｌ１に沿って略直角に折り曲げる。これにより、一対の第１側壁１０と一対の第２側壁１１とが周方向に交互に連設され、上面と下面とを開口させた角筒状の周壁Ｗが形成される（図４参照）。一対の第１側壁１０は左右方向に対向し、一対の第２側壁１１は前後方向に対向し、開口部３０が開口した側が正面（前方）となる。 The operator folds the pair of first side walls 10 and the pair of second side walls 11 substantially at right angles along the first folding lines L1. As a result, the pair of first side walls 10 and the pair of second side walls 11 are alternately connected in the circumferential direction to form a square tube-shaped peripheral wall W with an open top surface and a bottom surface (see FIG. 4). . The pair of first side walls 10 face each other in the left-right direction, the pair of second side walls 11 face each other in the front-rear direction, and the side where the opening 30 opens is the front (front).

作業者は、第１閉塞片１２、一対の第２閉塞片１３、第３閉塞片１４を、この順に第３折曲線Ｌ３に沿って内側に折り曲げる。第３閉塞片１４の先端側は、一対の第２閉塞片１３を挟んで第１閉塞片１２を押し込みながら第１閉塞片１２の切り欠きに差し込まれる。第１～第３閉塞片１２～１４は、いわゆる地獄底（またはアメリカンロック）と呼ばれる組み上げ式の底部であり、周壁Ｗの下面開口を閉塞する（図２参照）。 The operator folds the first closing piece 12, the pair of second closing pieces 13, and the third closing piece 14 inward along the third folding line L3 in this order. The distal end side of the third blocking piece 14 is inserted into the notch of the first blocking piece 12 while pushing the first blocking piece 12 with the pair of second blocking pieces 13 interposed therebetween. The first to third blocking pieces 12 to 14 are built-up bottoms called bottoms of hell (or American rocks), and block the lower opening of the peripheral wall W (see FIG. 2).

図４に示すように、作業者は、第１側片３２をヒンジ線Ｌ１２に沿って逆折りして手前に跳ね上げる（開く）。傾斜壁１６の第１側片３２があった位置には、開口部３０に連通する装着穴３７が開口する。作業者は、注出口２Ａを上方かつ前方に向けた内袋２を周壁Ｗの上面開口から内部に挿入する。作業者は、内袋２の注出口２Ａを装着穴３７から外部に露出させた後、下方にスライドさせて開口部３０に移動させる。開口部３０の左右両縁部は、注出口２Ａの２枚のフランジ部２Ｃの間に嵌り込む。 As shown in FIG. 4, the operator reversely folds the first side piece 32 along the hinge line L12 and flips it up (opens). A mounting hole 37 communicating with the opening 30 is opened at the position where the first side piece 32 of the inclined wall 16 was. An operator inserts the inner bag 2 into the inside from the top opening of the peripheral wall W with the spout 2A facing upward and forward. After exposing the spout 2A of the inner bag 2 to the outside from the mounting hole 37, the operator slides it downward to move it to the opening 30. As shown in FIG. Both the left and right edges of the opening 30 are fitted between the two flanges 2C of the spout 2A.

作業者は、跳ね上げた第１側片３２をヒンジ線Ｌ１２に沿って正折りして元に戻す（閉じる）。第１側片３２が閉じられる過程において、作業者は、第１側片３２を補助線Ｌ１３で外側に突き出すように屈曲（正折り）させ、、第１側片３２の先端（下端）を注出口２Ａの基端部に向ける（図２に示す二点鎖線を参照）。具体的には、第１側片３２の先端は、２枚のフランジ部２Ｃの間に向けられる。補助線Ｌ１３で屈曲された第１側片３２が広げられて閉じられた状態になると、第１側片３２の先端は２枚のフランジ部２Ｃの間に嵌り込む（注出口２Ａの基端部に係合する）。以上によって、装着穴３７が閉塞され、注出口２Ａが開口部３０から露出した状態になる（図２参照）。 The worker normal-folds the flipped-up first side piece 32 along the hinge line L12 and restores (closes) it. In the process of closing the first side piece 32, the operator bends (regularly folds) the first side piece 32 along the auxiliary line L13 so as to protrude outward, and inserts the tip (lower end) of the first side piece 32. It is directed toward the proximal end of the outlet 2A (see dash-dot line shown in FIG. 2). Specifically, the tip of the first side piece 32 is directed between the two flange portions 2C. When the first side piece 32 bent by the auxiliary line L13 is expanded and closed, the tip of the first side piece 32 is fitted between the two flange portions 2C (the base end portion of the spout 2A). ). As a result, the mounting hole 37 is closed and the spout 2A is exposed from the opening 30 (see FIG. 2).

次に、図２および図５に示すように、作業者は、一対の第２側片３３を２本の積層折線Ｌ１４に沿って内側に折り返す。前方の第２側片３３は、第１側片３２よりも大きいため、閉じられた第１側片３２と傾斜壁１６との裏面（裏ライナ９Ｃ）に重なる。前方の第２側片３３の先端（下端）は、開口部３０に嵌合した注出口２Ａの基端部（フランジ部２Ｃ）に近接している（接触はしていない（図２参照））。また、前方の第２側片３３と第１側片３２との係止穴３６同士は略一致している（図２および図５参照）。後方の第２側片３３は傾斜壁１６の裏面に重なり、後方の第２側片３３と傾斜壁１６との係止穴３６同士は略一致している（図２参照）。 Next, as shown in FIGS. 2 and 5, the operator folds the pair of second side pieces 33 inward along the two lamination folding lines L14. Since the front second side piece 33 is larger than the first side piece 32 , it overlaps the back surface (back liner 9</b>C) of the closed first side piece 32 and the inclined wall 16 . The tip (lower end) of the front second side piece 33 is close to (not in contact with) the base end (flange 2C) of the spout 2A fitted in the opening 30 (see FIG. 2). . The locking holes 36 of the front second side piece 33 and the first side piece 32 are substantially aligned (see FIGS. 2 and 5). The rear second side piece 33 overlaps the rear surface of the inclined wall 16, and the locking holes 36 of the rear second side piece 33 and the inclined wall 16 are substantially aligned (see FIG. 2).

作業者は、一対の蓋壁２０を第４折曲線Ｌ４に沿って内側に折り曲げ（正折りし）、一対の把手片２１を第５折曲線Ｌ５に沿って上向きに折り曲げる（逆折りする）。図１および図５に示すように、各把手片２１を逆折りすると、各延出片２２が相対的に突出し、各把手片２１には把手穴２４が開口する。一対の把手片２１は、左右方向の中央で重なり合った状態で立設されて把手部２６を形成する。把手部２６には、一対の把手片２１の各フック片２３が重なり合って前後一対のフック部２７が形成されている。一対の蓋壁２０は、一対の延出片２２を上下に重ねながら折り曲げられ、周壁Ｗの上面開口を閉塞する。なお、一対の延出片２２の重ね方はどちらを上にしてもよいが、右方の延出片２２の方が長いため、左方の延出片２２が右方の延出片２２の上面に重ねることが好ましい（図１参照）。 The operator folds (forward folds) the pair of lid walls 20 inward along the fourth folding line L4, and folds (reverse folds) the pair of handle pieces 21 upward along the fifth folding line L5. As shown in FIGS. 1 and 5, when the handle pieces 21 are reversely folded, the extension pieces 22 protrude relatively and the handle holes 24 are opened in the handle pieces 21 . The pair of grip pieces 21 are erected in a state of being overlapped at the center in the left-right direction to form a grip portion 26 . A pair of front and rear hook portions 27 are formed in the grip portion 26 by overlapping the hook pieces 23 of the pair of grip pieces 21 . The pair of lid walls 20 are bent while overlapping the pair of extension pieces 22 vertically to close the upper opening of the peripheral wall W. As shown in FIG. The pair of extension pieces 22 may be stacked with either side facing up, but since the right extension piece 22 is longer than the right extension piece 22, the left extension piece 22 is placed on top of the right extension piece 22. It is preferably superimposed on the top surface (see FIG. 1).

作業者は、一対の支持片１７を第２折曲線Ｌ２に沿って内側に折り曲げた後、一対の傾斜壁１６を第４折曲線Ｌ４に沿って内側に折り曲げる。そして、作業者は、把手部２６の一対のフック部２７を、重なり合った第１側片３２と第２側片３３との係止穴３６と、重なり合った傾斜壁１６と第２側片３３との係止穴３６と、に係止させる（差し込む）（図５および図６参照）。把手部２６が僅かに引き上げられると、一対のフック部２７は各係止穴３６の上縁に確りと噛み合い、一対の傾斜壁１６は、互いに内側に傾倒した姿勢で一対の天壁１５（把手部２６）に連結される。また、フック部２７が各係止穴３６の上縁に噛み合うことで、前方の第２側片３３は、閉じられた第１側片３２と傾斜壁１６との裏面に積層された状態に保持される（図２および図６参照）。同様に、後方の第２側片３３は、傾斜壁１６の裏面に積層された状態に保持される（図１および図２参照）。 After folding the pair of support pieces 17 inward along the second folding line L2, the operator folds the pair of inclined walls 16 inward along the fourth folding line L4. Then, the operator engages the pair of hook portions 27 of the handle portion 26 with the locking hole 36 between the overlapping first side piece 32 and second side piece 33 and the overlapping inclined wall 16 and second side piece 33 . is locked (inserted) into the locking hole 36 (see FIGS. 5 and 6). When the handle portion 26 is slightly lifted, the pair of hook portions 27 are firmly engaged with the upper edges of the locking holes 36, and the pair of inclined walls 16 are tilted inward with each other. 26). Further, the hook portion 27 is engaged with the upper edge of each locking hole 36 , so that the front second side piece 33 is held in a state of being laminated on the back surface of the closed first side piece 32 and the inclined wall 16 . (see FIGS. 2 and 6). Similarly, the rear second side piece 33 is held in a laminated state on the rear surface of the inclined wall 16 (see FIGS. 1 and 2).

以上によって、バッグインボックス１が完成する（外装箱３が封緘される（図１参照））。なお、バッグインボックス１を移動させたり、内容物を流出させたりする際には、ユーザは、把手部２６を把持することになる。この際、把手穴２４の上縁がユーザの手に食い込むことを抑制するために、左方の把手片２１に連設された手提片２５は、把手穴２４を挿通するように２本の手提折線Ｌ１１で折り曲げられ、把手穴２４の上縁を覆う。 By the above, the bag-in-box 1 is completed (the exterior box 3 is sealed (see FIG. 1)). When moving the bag-in-box 1 or pouring out the contents, the user grips the handle portion 26 . At this time, in order to prevent the upper edge of the handle hole 24 from digging into the user's hand, the handle piece 25 connected to the left handle piece 21 is inserted into the handle hole 24 so as to be inserted into the two handle pieces. It is bent along the folding line L11 and covers the upper edge of the handle hole 24. - 特許庁

以上説明した第１実施形態に係る外装箱３（バッグインボックス１）では、第２側片３３が、閉じられた第１側片３２と傾斜壁１６との裏面に積層された状態に保持される構成とした。この構成によれば、第１側片３２と第２側片３３とから成る二重壁によって注出口２Ａを押さえることができる。また、仮に、注出口２Ａ（キャップ２Ｂ）の開閉操作の繰り返しや、バッグインボックス１の移動時の振動等によって第１側片３２が開いてしまったとしても、第２側片３３によって注出口２Ａを押さえることができる。これにより、注出口２Ａが開口部３０から外れることが抑制され、注出口２Ａを開口部３０から露出させた状態に保持することができる。また、仮に、第１側片３２が開いてしまったとしても、第１側片３２が開いてできた装着穴３７は第２側片３３によって塞がれているため、装着穴３７から内袋２の一部が外部に露出することを防止することもできる。また、第２側片３３は、第１側片３２（装着穴３７）よりも大きい（幅広い）ため、装着穴３７から飛び出すこともない。また、第２側片３３は内側に折り曲げられて外観に現れないため、外装箱３の外観を良好なものにすることができる。 In the exterior box 3 (bag-in-box 1) according to the first embodiment described above, the second side piece 33 is held in a state of being laminated on the back surface of the closed first side piece 32 and the inclined wall 16. It was configured as follows. According to this configuration, the spout 2A can be held down by the double wall composed of the first side piece 32 and the second side piece 33 . In addition, even if the first side piece 32 is opened due to repeated opening and closing operations of the spout 2A (cap 2B) or vibrations when the bag-in-box 1 is moved, the second side piece 33 will keep the spout out. 2A can be held. As a result, the spout 2A is prevented from coming off the opening 30, and the spout 2A can be kept exposed from the opening 30. As shown in FIG. Moreover, even if the first side piece 32 were to open, the mounting hole 37 formed by the opening of the first side piece 32 is blocked by the second side piece 33, so that the inner bag can be removed from the mounting hole 37. 2 can also be prevented from being exposed to the outside. Moreover, since the second side piece 33 is larger (broader) than the first side piece 32 (the mounting hole 37 ), it does not protrude from the mounting hole 37 . In addition, since the second side piece 33 is bent inward and does not appear in the outer appearance, the appearance of the exterior box 3 can be improved.

また、第１実施形態に係る外装箱３によれば、第１側片３２を補助線Ｌ１３で屈曲させることができるため（図２の二点鎖線参照）、第１側片３２を閉じる際に、第１側片３２の先端が注出口２Ａに干渉することを抑制することができる。これにより、第１側片３２の先端を注出口２Ａの基端部に向けながら、第１側片３２を円滑に閉じることができる。また、屈曲した第１側片３２が広げられながら閉じられることで、第１側片３２の先端が注出口２Ａの基端部に確りと係合するため、意図しない第１側片３２の開放を抑制することができる。 Further, according to the outer box 3 according to the first embodiment, the first side piece 32 can be bent along the auxiliary line L13 (see the two-dot chain line in FIG. 2), so when the first side piece 32 is closed, , the tip of the first side piece 32 can be prevented from interfering with the spout 2A. As a result, the first side piece 32 can be smoothly closed while the tip of the first side piece 32 is directed toward the base end of the spout 2A. In addition, since the bent first side piece 32 is opened and closed, the tip of the first side piece 32 firmly engages with the base end portion of the spout 2A, so that the unintended opening of the first side piece 32 is prevented. can be suppressed.

また、第１実施形態に係る外装箱３では、把手部２６の前方のフック部２７が、重なり合った第１側片３２と第２側片３３との係止穴３６に係止される（差し込まれる）構成とした。この構成によれば、接着剤や粘着テープを用いることなく、把手部２６を形成して外装箱３を封緘することができると同時に、第２側片３３を第１側片３２等に重ねて保持することができる。 In addition, in the exterior box 3 according to the first embodiment, the hook portion 27 in front of the handle portion 26 is locked (inserted) into the locking hole 36 of the overlapping first side piece 32 and second side piece 33 . ) configuration. According to this configuration, the handle portion 26 can be formed to seal the exterior box 3 without using an adhesive or an adhesive tape, and at the same time, the second side piece 33 can be overlapped with the first side piece 32 and the like. can hold.

なお、第１実施形態に係る外装箱３では、折り返された第２側片３３の先端が、注出口２Ａの基端部（フランジ部２Ｃ）から離間していた（接触していなかった）が、本発明はこれに限定されない。第２側片３３は、その先端を注出口２Ａの基端部に接触（係合）させた状態で第１側片３２と第２側壁１１との裏面に積層されてもよい。この構成によれば、第２側片３３の先端が注出口２Ａの基端部に係合しているため、接着剤や粘着テープを用いることなく、第２側片３３を第１側片３２等の裏面に重ねた状態に仮保持することができる。 In addition, in the outer box 3 according to the first embodiment, the tip of the folded second side piece 33 was separated from (not in contact with) the base end portion (flange portion 2C) of the spout 2A. , the invention is not limited thereto. The second side piece 33 may be layered on the rear surfaces of the first side piece 32 and the second side wall 11 with its tip contacting (engaging) with the base end of the spout 2A. According to this configuration, since the tip of the second side piece 33 is engaged with the base end of the spout 2A, the second side piece 33 can be attached to the first side piece 32 without using adhesive or adhesive tape. It can be temporarily held in a state of being superimposed on the back surface of such as.

［第２実施形態：外装箱］
図７および図８を参照して、第２実施形態に係る外装箱４について説明する。図７は外装箱４のブランク４Ａを示す平面図である。図８はバッグインボックス１を示す側方断面図である。なお、第１実施形態に係る外装箱３と同一または対応する構成には同一の符号を付し、同一または対応する説明は省略する。 [Second embodiment: outer box]
The exterior box 4 according to the second embodiment will be described with reference to FIGS. 7 and 8. FIG. 7 is a plan view showing the blank 4A of the outer box 4. FIG. FIG. 8 is a side sectional view showing the bag-in-box 1. FIG. In addition, the same code|symbol is attached|subjected to the structure which is the same as that of the exterior box 3 which concerns on 1st Embodiment, or corresponds, and the same or corresponding description is abbreviate|omitted.

第１実施形態に係る外装箱３では、前方の第２側壁１１が後方の第２側壁１１よりも低く形成されていたが、第２実施形態に係る外装箱４（ブランク４Ａ）では、前後一対の第２側壁１１（壁部の一例）が同一の高さに形成され、一対の支持片１７（第２折曲線Ｌ２）が省略されている点で相違する。また、第１実施形態に係る外装箱３では、開口部３０や第１側片３２が前方の傾斜壁１６に形成されていたが、第２実施形態に係る外装箱４では、開口部３０が前方の第２側壁１１の上部に形成され、第１側片３２が前方の第２側壁１１から前方の傾斜壁１６に亘って形成されている点で相違する。さらに、第２実施形態に係る外装箱４では、前方の第２側片３４が、第１実施形態に係る外装箱３の第２側片３３と異なっている。 In the outer box 3 according to the first embodiment, the front second side wall 11 is formed lower than the rear second side wall 11, but in the outer box 4 (blank 4A) according to the second embodiment, a pair of front and rear are formed at the same height, and the pair of support pieces 17 (second folding lines L2) are omitted. Further, in the outer box 3 according to the first embodiment, the opening 30 and the first side piece 32 are formed in the front inclined wall 16, but in the outer box 4 according to the second embodiment, the opening 30 is It is formed on the upper part of the front second side wall 11 and differs in that the first side piece 32 is formed from the front second side wall 11 to the front inclined wall 16 . Furthermore, in the exterior box 4 according to the second embodiment, the front second side piece 34 is different from the second side piece 33 of the exterior box 3 according to the first embodiment.

図７に示すように、前方の傾斜壁１６は、後方の傾斜壁１６と同様に、略台形状に形成されている。一対の切目線３１は、開口部３０から第４折曲線Ｌ４を越えて傾斜壁１６の上下方向の略中央まで切り込まれている。第１側片３２を横切る第４折曲線Ｌ４の一部が、補助線Ｌ１３として兼用される。なお、第１側片３２に開口する係止穴３６の下縁は、補助線Ｌ１３（第４折曲線Ｌ４の一部）よりも上方に離間している。 As shown in FIG. 7, the front inclined wall 16 is formed in a substantially trapezoidal shape, like the rear inclined wall 16. As shown in FIG. A pair of cut lines 31 are cut from the opening 30 to substantially the center of the inclined wall 16 in the vertical direction beyond the fourth folding line L4. A part of the fourth folding line L4 crossing the first side piece 32 is also used as the auxiliary line L13. The lower edge of the locking hole 36 opening in the first side piece 32 is spaced above the auxiliary line L13 (part of the fourth folding line L4).

前方の第２側片３４は、本体部３４Ａと、延長部３４Ｂと、を有している。本体部３４Ａは、後方の第２側片３３と略同一形状に形成されている。延長部３４Ｂは、延長折線Ｌ１５を介して本体部３４Ａの先端に連設されている。延長部３４Ｂは長方形状に形成されており、その延出寸法は第１側片３２の先端から補助線Ｌ１３（第４折曲線Ｌ４の一部）までの長さと略同一である。なお、延長折線Ｌ１５は、逆罫線であるが、これに限らず、例えばミシン刃線等であってもよい。 The front second side piece 34 has a body portion 34A and an extension portion 34B. The body portion 34A is formed in substantially the same shape as the rear second side piece 33 . The extension portion 34B is connected to the tip of the main body portion 34A via an extension broken line L15. The extension part 34B is formed in a rectangular shape, and its extension dimension is substantially the same as the length from the tip of the first side piece 32 to the auxiliary line L13 (part of the fourth folding line L4). Although the extended fold line L15 is a reverse ruled line, it is not limited to this, and may be, for example, a perforation blade line.

［外装箱の封緘］
第２実施形態に係る外装箱４は、第１実施形態に係る外装箱３と同様の手順で封緘される。作業者は、周壁Ｗを形成し、周壁Ｗの下面開口を閉塞し、内袋２を収容し、第１側片３２を開いて開口部３０から注出口２Ａを露出させ、第１側片３２を閉じる（図８参照）。 [Sealing the outer box]
The outer box 4 according to the second embodiment is sealed in the same procedure as the outer box 3 according to the first embodiment. An operator forms the peripheral wall W, closes the lower opening of the peripheral wall W, accommodates the inner bag 2, opens the first side piece 32 to expose the spout 2A from the opening 30, and (see Figure 8).

続いて、作業者は、一対の第２側片３３，３４を内側に折り返す。図８に示すように、前方の第２側片３４において、本体部３４Ａは２本の積層折線Ｌ１４に沿って内側に折り返され、延長部３４Ｂは延長折線Ｌ１５に沿って逆折りされる。本体部３４Ａは第１側片３２と傾斜壁１６との裏面に重なり、延長部３４Ｂは第１側片３２と第２側壁１１との裏面に重なる。また、延長部３４Ｂの先端は、注出口２Ａの基端部（フランジ部２Ｃ）に接触（係合）し、本体部３４Ａが第１側片３２等に積層され、且つ延長部３４Ｂが第２側壁１１に積層された状態に仮保持される。なお、延長部３４Ｂの先端は、注出口２Ａの基端部から離間していてもよい。 Subsequently, the operator folds the pair of second side pieces 33 and 34 inward. As shown in FIG. 8, in the front second side piece 34, the body portion 34A is folded inward along the two lamination fold lines L14, and the extension portion 34B is reverse folded along the extension fold line L15. The body portion 34A overlaps the rear surfaces of the first side piece 32 and the inclined wall 16, and the extension portion 34B overlaps the rear surfaces of the first side piece 32 and the second side wall 11. As shown in FIG. Further, the tip of the extension portion 34B contacts (engages) with the base end portion (flange portion 2C) of the spout 2A, the body portion 34A is laminated on the first side piece 32 and the like, and the extension portion 34B is the second It is temporarily held in a laminated state on the side wall 11 . In addition, the tip of the extension part 34B may be separated from the base end of the spout 2A.

作業者は、一対の天壁１５を折り曲げて、周壁Ｗの上面開口を閉塞し、把手部２６を形成し、一対の傾斜壁１６を内側に折り曲げ、把手部２６の一対のフック部２７を各係止穴３６に差し込む。以上によって、バッグインボックス１が完成する（外装箱４が封緘される）。 The operator bends the pair of top walls 15 to close the top opening of the peripheral wall W, forms the handle portion 26, bends the pair of inclined walls 16 inward, and opens the pair of hook portions 27 of the handle portion 26. Insert into locking hole 36 . By the above, the bag-in-box 1 is completed (the exterior box 4 is sealed).

以上説明した第２実施形態に係る外装箱４（バッグインボックス１）によれば、注出口２Ａが開口部３０から外れることが抑制され、注出口２Ａを開口部３０から露出させた状態に保持することができる等、第１実施形態に係る外装箱３と同様の効果を得ることができる。 According to the exterior box 4 (bag-in-box 1) according to the second embodiment described above, the spout 2A is prevented from coming off the opening 30, and the spout 2A is kept exposed from the opening 30. It is possible to obtain the same effect as the exterior box 3 according to the first embodiment, such as being able to

なお、第１および第２実施形態に係る外装箱３，４では、後方の傾斜壁１６にも係止穴３６が穿設された第２側片３３が連設されていたが、これに限らず、後方の第２側片３３は省略されてもよい（図示せず）。この場合、把手部２６の後方のフック部２７は、後方の傾斜壁１６の係止穴３６のみに係止される。 In addition, in the exterior boxes 3 and 4 according to the first and second embodiments, the second side piece 33 having the locking hole 36 is also continuously provided on the rear inclined wall 16, but this is not the only option. However, the rear second side piece 33 may be omitted (not shown). In this case, the rear hook portion 27 of the handle portion 26 is locked only in the locking hole 36 of the rear inclined wall 16 .

また、第１および第２実施形態に係る外装箱３，４では、第１側片３２に補助線Ｌ１３が形成されていたが、これに限らず、補助線Ｌ１３は省略されてもよい（図示せず）。 Further, in the exterior boxes 3 and 4 according to the first and second embodiments, the auxiliary line L13 is formed on the first side piece 32, but this is not limiting and the auxiliary line L13 may be omitted (Fig. not shown).

また、第１および第２実施形態に係る外装箱３，４は、第２側片３３，３４が２本の積層折線Ｌ１４を介して傾斜壁１６の上端に連設されていたが、これに限らず、積層折線Ｌ１４は１本であってもよい（図示せず）。 In the exterior boxes 3 and 4 according to the first and second embodiments, the second side pieces 33 and 34 are connected to the upper end of the inclined wall 16 via the two laminated folding lines L14. However, the number of laminated folding lines L14 may be one (not shown).

［第３実施形態：外装箱］
図９および図１０を参照して、第３実施形態に係る外装箱５について説明する。図９は外装箱５のブランク５Ａを示す平面図である。図１０はバッグインボックス１を示す側方断面図である。なお、第１または第２実施形態に係る外装箱３，４と同一または対応する構成には同一の符号を付し、同一または対応する説明は省略する。 [Third Embodiment: Outer box]
An exterior box 5 according to a third embodiment will be described with reference to FIGS. 9 and 10. FIG. 9 is a plan view showing the blank 5A of the outer box 5. FIG. FIG. 10 is a side sectional view showing the bag-in-box 1. FIG. In addition, the same code|symbol is attached|subjected to the structure which is the same as that of the exterior boxes 3 and 4 which concern on 1st or 2nd embodiment, or corresponds, and the same or corresponding description is abbreviate|omitted.

第１および第２実施形態に係る外装箱３，４では、開口部３０や第１側片３２等が上方に設けられていたが、第３実施形態に係る外装箱５では、開口部３０や第１側片３２等が下方に設けられている点で相違する。なお、第３実施形態に係る外装箱５（ブランク５Ａ）では、第２実施形態に係る外装箱４（ブランク４Ａ）と同様に、前後一対の第２側壁１１（壁部の一例）が同一の高さに形成されている。また、第３実施形態に係る外装箱５（ブランク５Ａ）では、第１実施形態に係る外装箱３と同様となる前後一対の第２側片３３を備えている。 In the outer boxes 3 and 4 according to the first and second embodiments, the opening 30, the first side piece 32, and the like are provided above, but in the outer box 5 according to the third embodiment, the opening 30 and The difference is that the first side piece 32 and the like are provided below. In addition, in the outer box 5 (blank 5A) according to the third embodiment, the pair of front and rear second side walls 11 (an example of the wall portion) are the same as in the outer box 4 (blank 4A) according to the second embodiment. formed in height. Further, the exterior box 5 (blank 5A) according to the third embodiment is provided with a pair of front and rear second side pieces 33 similar to the exterior box 3 according to the first embodiment.

図９に示すように、外装箱５のブランク５Ａでは、第１～第３閉塞片１２～１４に代えて、第３折曲線Ｌ３を介して一対の第２側壁１１の下端に連設された一対の下内フラップ４０と、第３折曲線Ｌ３を介して一対の第１側壁１０の下端に連設された一対の下外フラップ４１と、を備えている。各下内フラップ４０および各下外フラップ４１は、それぞれ略長方形状に形成されている。 As shown in FIG. 9, in the blank 5A of the outer box 5, instead of the first to third closing pieces 12 to 14, the blank 5A is connected to the lower ends of the pair of second side walls 11 via the third folding line L3. A pair of lower inner flaps 40 and a pair of lower outer flaps 41 connected to the lower ends of the pair of first side walls 10 via a third folding line L3 are provided. Each lower inner flap 40 and each lower outer flap 41 are each formed in a substantially rectangular shape.

開口部３０は、前方の第２側壁１１（壁部の一例）の下部に形成されている。一対の切目線３１は、開口部３０から第３折曲線Ｌ３まで切り込まれている。第１側片３２は、開口部３０の下方に隣接し、一対の切目線３１の間（前方の第２側壁１１）に形成されている。なお、外装箱５では、第３折曲線Ｌ３の一部がヒンジ線Ｌ１２として兼用され、補助線Ｌ１３は省略されている。 The opening 30 is formed in the lower part of the front second side wall 11 (an example of a wall). A pair of cut lines 31 are cut from the opening 30 to the third folding line L3. The first side piece 32 is adjacent to the lower side of the opening 30 and is formed between the pair of cut lines 31 (the front second side wall 11). In addition, in the exterior box 5, a part of the third folding line L3 is also used as the hinge line L12, and the auxiliary line L13 is omitted.

前方の下内フラップ４０の一部が、第１側片３２の裏面に積層される第２側片３５として形成されている。前方の下内フラップ４０（壁部の一例）は、外延出部４０Ａと、内延出部４０Ｂと、を有している。外延出部４０Ａは、第３折曲線Ｌ３を介して第２側壁１１の下端に連設され、内延出部４０Ｂは、折返し線Ｌ１６を介して外延出部４０Ａの先端に連設されている。第２側片３５は、積層折線Ｌ１７を介して内延出部４０Ｂの先端に連設されている。第２側片３５は長方形状に形成されており、その延出寸法は第１側片３２の高さと略同一である。なお、折返し線Ｌ１６および積層折線Ｌ１７は、逆罫線上に複数の切目を入れたリード罫であるが、これに限らず、例えばミシン刃線等であってもよい。 A portion of the front lower inner flap 40 is formed as a second side piece 35 laminated on the back surface of the first side piece 32 . The front lower inner flap 40 (an example of a wall portion) has an outwardly extending portion 40A and an inwardly extending portion 40B. The outwardly extending portion 40A is connected to the lower end of the second side wall 11 via the third folding line L3, and the inwardly extending portion 40B is connected to the distal end of the outwardly extending portion 40A via the folding line L16. . The second side piece 35 is connected to the tip of the inwardly extending portion 40B via the lamination folding line L17. The second side piece 35 is formed in a rectangular shape, and its extension dimension is substantially the same as the height of the first side piece 32 . Note that the folding line L16 and the laminated folding line L17 are lead creases in which a plurality of cuts are made on the reverse crease line, but are not limited to this, and may be, for example, perforation blade lines.

［外装箱の封緘］
作業者は、周壁Ｗを形成し、第１側片３２を開き、注出口２Ａを下方かつ前方に向けた内袋２を周壁Ｗの上面開口または下面開口から内部に挿入する。作業者は、内袋２の注出口２Ａを開口部３０から露出させ、第１側片３２を閉じる（図１０参照）。 [Sealing the outer box]
An operator forms the peripheral wall W, opens the first side piece 32, and inserts the inner bag 2 with the spout 2A downward and forward through the upper or lower opening of the peripheral wall W. The operator exposes the spout 2A of the inner bag 2 from the opening 30 and closes the first side piece 32 (see FIG. 10).

作業者は、前方の下内フラップ４０の外延出部４０Ａを第３折曲線Ｌ３に沿って内側に折り曲げ（正折り）、内延出部４０Ｂを折返し線Ｌ１６に沿って内側に折り返し（正折り）、第２側片３５を積層折線Ｌ１７に沿って逆折りする。図１０に示すように、内延出部４０Ｂは、外延出部４０Ａの裏面に重なり、第２側片３５は、閉じられた第１側片３２と第２側壁１１の裏面に重なる。第２側片３５の先端は、開口部３０に嵌合した注出口２Ａの基端部（フランジ部２Ｃ）に接触（係合）している。また、作業者は、後方の下内フラップ４０を第３折曲線Ｌ３に沿って内側に折り曲げる。外延出部４０Ａ（内延出部４０Ｂ）と後方の下内フラップ４０とは、先端同士を離間させ、周壁Ｗの下面開口の一部を閉塞する。なお、第２側片３５の先端は、注出口２Ａの基端部から離間していてもよい。 The worker folds the outwardly extending portion 40A of the front lower inner flap 40 inward along the third folding line L3 (normal folding), and folds the inwardly extending portion 40B inward along the folding line L16 (normal folding). ), and reversely fold the second side piece 35 along the lamination folding line L17. As shown in FIG. 10 , the inwardly extending portion 40B overlaps the rear surface of the outwardly extending portion 40A, and the second side piece 35 overlaps the closed first side piece 32 and the rear surface of the second side wall 11 . The tip of the second side piece 35 contacts (engages) with the base end (flange 2C) of the spout 2A fitted in the opening 30 . Further, the operator folds the rear lower inner flap 40 inward along the third folding line L3. The outwardly extending portion 40A (inwardly extending portion 40B) and the rear lower inner flap 40 are separated from each other at their distal ends, and partially block the opening of the lower surface of the peripheral wall W. As shown in FIG. The tip of the second side piece 35 may be separated from the base end of the spout 2A.

作業者は、一対の下外フラップ４１を第３折曲線Ｌ３に沿って内側に折り曲げる。一対の下外フラップ４１は、周壁Ｗの下面開口の一部を閉塞した一対の下内フラップ４０の表面に積層され、一対の下外フラップ４１の先端同士は突き合わされている。作業者は、一対の下外フラップ４１の突き合わせ部に沿って粘着テープを貼り、周壁Ｗの底部を形成する。下外フラップ４１が下内フラップ４０を押さえ込むため、第２側片３３は、その先端を注出口２Ａの基端部に係合させ、且つ第１側片３２等の裏面に積層された状態に保持される。なお、下外フラップ４１は、接着剤を介して下内フラップ４０に固定されてもよい。 The operator folds the pair of lower outer flaps 41 inward along the third folding lines L3. The pair of lower outer flaps 41 are layered on the surface of the pair of lower inner flaps 40 that partially close the lower opening of the peripheral wall W, and the tips of the pair of lower outer flaps 41 are butted against each other. The operator forms the bottom of the peripheral wall W by sticking an adhesive tape along the butted portions of the pair of lower outer flaps 41 . Since the lower outer flap 41 presses down the lower inner flap 40, the tip of the second side piece 33 is engaged with the base end of the spout 2A and is stacked on the rear surface of the first side piece 32 and the like. retained. Note that the lower outer flap 41 may be fixed to the lower inner flap 40 via an adhesive.

作業者は、一対の第２側片３３を内側に折り返し、一対の天壁１５を折り曲げ、把手部２６を形成し、一対の傾斜壁１６を内側に折り曲げ、把手部２６の一対のフック部２７を各係止穴３６に差し込む。以上によって、周壁Ｗの上面開口を閉塞する天部が構成され、バッグインボックス１が完成する（外装箱５が封緘される）。 The operator folds the pair of second side pieces 33 inward, folds the pair of top walls 15 to form the handle portion 26, folds the pair of inclined walls 16 inward, and folds the pair of hook portions 27 of the handle portion 26. into each locking hole 36. As described above, the top part that closes the top opening of the peripheral wall W is formed, and the bag-in-box 1 is completed (the exterior box 5 is sealed).

以上説明した第３実施形態に係る外装箱５（バッグインボックス１）によれば、注出口２Ａが開口部３０から外れることが抑制され、注出口２Ａを開口部３０から露出させた状態に保持することができる等、第１実施形態に係る外装箱３と同様の効果を得ることができる。 According to the outer box 5 (bag-in-box 1) according to the third embodiment described above, the spout 2A is prevented from coming off the opening 30, and the spout 2A is kept exposed from the opening 30. It is possible to obtain the same effect as the exterior box 3 according to the first embodiment, such as being able to

なお、第３実施形態に係る外装箱５（バッグインボックス１）では、一対の天壁１５によって把手部２６を有する天部が構成されていたが、本発明はこれに限定されない。例えば、図１１に示すように、変形例に係る外装箱５として、天壁１５に代えて、下内フラップ４０と同様となる上内フラップ４２が第２側壁１１の上端に連設されてもよい。また、傾斜壁１６等に代えて、下外フラップ４１と同様となる上外フラップ４３が、第１側壁１０の上端に連設されてもよい。また、図１１に示す変形例に係る外装箱５は、上下逆さまにされ、開口部３０、第１側片３２および第２側片３５等を上方に向けて使用されてもよい。この場合には、外装箱５の底部は、第１および第２実施形態に係る外装箱３，４のように地獄底（第１～第３閉塞片１２～１４）であってもよい（図示せず）。 In addition, in the exterior box 5 (bag-in-box 1) according to the third embodiment, the top portion having the handle portion 26 is configured by the pair of top walls 15, but the present invention is not limited to this. For example, as shown in FIG. 11, as the exterior box 5 according to the modification, instead of the top wall 15, an upper inner flap 42 similar to the lower inner flap 40 may be connected to the upper end of the second side wall 11. good. Also, instead of the inclined wall 16 or the like, an upper outer flap 43 similar to the lower outer flap 41 may be provided continuously at the upper end of the first side wall 10 . 11 may be used with the opening 30, the first side piece 32, the second side piece 35, etc. directed upward. In this case, the bottom of the outer box 5 may be the bottom of hell (first to third blocking pieces 12 to 14) like the outer boxes 3 and 4 according to the first and second embodiments (Fig. not shown).

また、第３実施形態（各変形例を含む。以下同じ。）に係る外装箱５では、第１側片３２が第２側壁１１に形成されていたが、本発明はこれに限定されない。第２実施形態に係る外装箱４と同様に、第１側片３２は、前方の第２側壁１１から前方の下内フラップ４０に亘って形成されてもよい（図示せず）。 Moreover, although the first side piece 32 is formed on the second side wall 11 in the exterior box 5 according to the third embodiment (including each modified example; the same shall apply hereinafter), the present invention is not limited to this. Similar to the outer box 4 according to the second embodiment, the first side piece 32 may be formed from the front second side wall 11 to the front lower inner flap 40 (not shown).

また、第３実施形態に係る外装箱５では、第２側片３５が前方の下内フラップ４０の一部として形成されていたが、本発明はこれに限定されない。例えば、外延出部４０Ａおよび内延出部４０Ｂが省略され、前方の下内フラップ４０の全部が第２側片３５とされてもよい（図示せず）。この場合、第３折曲線Ｌ３が積層折線Ｌ１７として兼用され、第２側片３５は、第３折曲線Ｌ３に沿って折り返される。 Moreover, in the exterior box 5 according to the third embodiment, the second side piece 35 is formed as a part of the front lower inner flap 40, but the present invention is not limited to this. For example, the outwardly extending portion 40A and the inwardly extending portion 40B may be omitted, and the entire front lower inner flap 40 may be the second side piece 35 (not shown). In this case, the third folding line L3 is also used as the laminated folding line L17, and the second side piece 35 is folded back along the third folding line L3.

また、第３実施形態に係る外装箱５では、第２側片３５が下内フラップ４０の先端部に設けられ、外延出部４０Ａや内延出部４０Ｂと同一幅で形成されていたが、本発明はこれに限定されない。例えば、図１２に示すように、下内フラップ４０の中央部を含む領域を刳り貫くように内延出部４０Ｂと第２側片３５とが形成されてもよい。この場合、内延出部４０Ｂと第２側片３５とを刳り貫いた後に残る矩形環状の部分が外延出部４０Ａとなる。 In addition, in the exterior box 5 according to the third embodiment, the second side piece 35 is provided at the tip of the lower inner flap 40, and is formed to have the same width as the outwardly extending portion 40A and the inwardly extending portion 40B. The invention is not limited to this. For example, as shown in FIG. 12 , the inwardly extending portion 40B and the second side piece 35 may be formed so as to hollow out a region including the central portion of the lower inner flap 40 . In this case, the rectangular annular portion remaining after the inner extension 40B and the second side piece 35 are hollowed out becomes the outer extension 40A.

また、第３実施形態に係る外装箱５では、一対の下内フラップ４０が、その先端同士を離間させ、周壁Ｗの下面開口の一部を閉塞していたが（図１０参照）、これに限らず、一対の下内フラップ４０が、その先端同士を突き合わせ、周壁Ｗの下面開口の全部を閉塞してもよい（図示せず）。また、一対の下外フラップ４１が、その先端同士を突き合わせていたが、離間させてもよい（図示せず）。なお、先に説明した変形例に係る上内フラップ４２や上外フラップ４３も上記と同様である（図示せず）。 In addition, in the outer box 5 according to the third embodiment, the pair of lower inner flaps 40 are separated from each other to partially block the opening of the lower surface of the peripheral wall W (see FIG. 10). Alternatively, the pair of lower inner flaps 40 may close the entire opening of the lower surface of the peripheral wall W by abutting their tips (not shown). Also, although the tips of the pair of lower outer flaps 41 are butted against each other, they may be separated (not shown). The upper inner flap 42 and the upper outer flap 43 according to the modified example described above are also the same as above (not shown).

また、第３実施形態に係る外装箱５では、一対の傾斜壁１６の上端に一対の第２側片３３が連設されていたが、これに限らず、一対の第２側片３３は省略されてもよい（図示せず）。この場合、把手部２６の一対のフック部２７は、一対の傾斜壁１６の係止穴３６のみに係止される。 Further, in the exterior box 5 according to the third embodiment, the pair of second side pieces 33 are continuously provided at the upper ends of the pair of inclined walls 16, but the present invention is not limited to this, and the pair of second side pieces 33 are omitted. (not shown). In this case, the pair of hook portions 27 of the handle portion 26 are locked only in the locking holes 36 of the pair of inclined walls 16 .

また、第３実施形態に係る外装箱５では、第１側片３２に補助線Ｌ１３が形成されていなかったが、これに限らず、補助線Ｌ１３が第１側片３２に形成されてもよい（図示せず）。 Further, in the exterior box 5 according to the third embodiment, the auxiliary line L13 is not formed on the first side piece 32, but the auxiliary line L13 may be formed on the first side piece 32 without being limited to this. (not shown).

なお、第１～第３実施形態に係る外装箱３～５では、第２側片３３～３５が積層折線Ｌ１４，Ｌ１７に沿って内側に折り曲げられ、閉じられた第１側片等の裏面に積層された状態に保持されていたが、本発明はこれに限定されない。例えば、図１３に示すように、（前方の）第２側片３３が積層折線Ｌ１４に沿って外側に折り曲げられ、閉じられた第１側片等の表面に積層された状態に保持されてもよい（変形例）。この場合、第２側片３３の先端は、外側のフランジ部２Ｃに接触するとよいが、接触しなくてもよい。また、積層折線Ｌ１４は、汎用罫線に代えて、逆罫線にするとよい。この構成によれば、第１側片３２と第２側片３３とから成る二重壁によって注出口２Ａを押さえることができ、注出口２Ａが開口部３０から外れることが抑制され、注出口２Ａを開口部３０から露出させた状態に保持することができる等、第１～第３実施形態に係る外装箱３～５と同様の効果を得ることができる。なお、後方の第２側片３３は、前方の第２側片３３に合わせて外側に折り曲げられてもいが、内側に折り曲げられてもよい。また、図１３では、第１実施形態に係る外装箱３に対して変形例を適用していたが、これに限らず、第２～第３実施形態に係る外装箱４，５に、この変形例を適用し、第２側片３４，３５が積層折線Ｌ１４，Ｌ１７で外側に折り曲げられてもよい（図示せず）。 In addition, in the outer boxes 3 to 5 according to the first to third embodiments, the second side pieces 33 to 35 are folded inward along the laminated folding lines L14 and L17, and Although held in a laminated state, the invention is not so limited. For example, as shown in FIG. 13, even if the (front) second side piece 33 is folded outward along the lamination folding line L14 and laminated on the surface of the closed first side piece, etc., it is held. Good (variant). In this case, the tip of the second side piece 33 should contact the outer flange portion 2C, but it does not have to. Also, the laminated folding line L14 may be a reverse ruled line instead of a general-purpose ruled line. According to this configuration, the double wall composed of the first side piece 32 and the second side piece 33 can hold down the spout 2A, thereby preventing the spout 2A from coming off the opening 30, thereby suppressing the spout 2A. can be kept exposed from the opening 30, and the same effects as those of the exterior boxes 3 to 5 according to the first to third embodiments can be obtained. The rear second side piece 33 may be bent outward to match the front second side piece 33, or may be bent inward. In addition, in FIG. 13, the modified example is applied to the outer box 3 according to the first embodiment, but this modification is not limited to the outer boxes 4 and 5 according to the second and third embodiments. Applying the example, the second side pieces 34, 35 may be folded outwards at the lamination fold lines L14, L17 (not shown).

また、第１～第３実施形態（変形例を含む。以下同じ。）に係る外装箱３～５では、第２側片３３～３５が略四角形状に形成されていたが、その形状は自由に変更してもよい。また、第２側片３３～３５は、第１側片３２を開いた際に装着穴３７から飛び出さない程度の大きさ（横幅）に形成されていればよい。 In addition, in the exterior boxes 3 to 5 according to the first to third embodiments (including modifications; the same shall apply hereinafter), the second side pieces 33 to 35 are formed in a substantially rectangular shape, but the shape is free. can be changed to Moreover, the second side pieces 33 to 35 may be formed to have a size (lateral width) that does not protrude from the mounting hole 37 when the first side piece 32 is opened.

また、第１～第３実施形態に係る外装箱３～５では、第２側片３３～３５が、把手部２６のフック部２７を係止穴３６に係止させたり、下外フラップ４１を下内フラップ４０上に積層したりすることで、第１側片３２等の裏面に積層された状態に保持されていたが、本発明はこれに限定されない。例えば、余計な手間がかかるが、第２側片３３～３５が、第１側片３２、傾斜壁１６および第２側壁１１の少なくとも１つに対し、接着剤や粘着テープで固定されてもよい（図示せず）。 In addition, in the outer boxes 3 to 5 according to the first to third embodiments, the second side pieces 33 to 35 lock the hook portion 27 of the handle portion 26 to the locking hole 36, or the lower outer flap 41. By stacking them on the lower inner flap 40, they are held in a state of being stacked on the back surface of the first side piece 32, etc., but the present invention is not limited to this. For example, the second side pieces 33 to 35 may be fixed to at least one of the first side piece 32, the inclined wall 16 and the second side wall 11 with an adhesive or an adhesive tape, although it takes extra time. (not shown).

また、第１～第３実施形態に係る外装箱３～５（周壁Ｗ）は、略直方体に形成されていたが、例えば、直方体の四面の角を面取りして略八角柱状に形成されてもよい（図示せず）。また、外装箱の型式は、上記に限らず、例えば、四角形状の底壁の四辺に各側壁１０，１１を連設したトレイ状に形成されてもよい（図示せず）。 In addition, although the exterior boxes 3 to 5 (surrounding walls W) according to the first to third embodiments are formed in a substantially rectangular parallelepiped shape, for example, they may be formed in a substantially octagonal prism shape by chamfering the four corners of the rectangular parallelepiped. good (not shown). Further, the type of the exterior box is not limited to the above. For example, it may be formed in the shape of a tray (not shown) in which side walls 10 and 11 are connected to the four sides of a rectangular bottom wall.

また、第１～第３実施形態に係る外装箱３～５は、紙製の両面段ボールシートで形成されていたが、本発明はこれに限定されない。例えば、段ボールシートは、中しん９Ａの片面にライナを貼り付けた片面段ボールシートでもよいし、片面段ボールシートと両面段ボールシートを積層した複両面段ボールシートであってもよい。また、例えば、外装箱３～５は、紙製の段ボールシートに代えて、厚紙や樹脂製の板等で形成されていてもよい。 Further, although the exterior boxes 3 to 5 according to the first to third embodiments are formed of double-faced cardboard sheets made of paper, the present invention is not limited to this. For example, the cardboard sheet may be a single-faced cardboard sheet with a liner attached to one side of the core 9A, or may be a double-faced cardboard sheet in which a single-faced cardboard sheet and a double-faced cardboard sheet are laminated. Further, for example, the exterior boxes 3 to 5 may be made of thick paper, resin plates, or the like, instead of paper cardboard sheets.

また、第１～第３実施形態に係る外装箱３～５は、開口部３０等が前方（第２側壁１１等）に形成されていたが、これに限らず、左方または右方（第１側壁１０等）に形成されてもよい（図示せず）。 In addition, although the outer boxes 3 to 5 according to the first to third embodiments have the opening 30 and the like formed in the front (the second side wall 11 and the like), the present 1 side wall 10, etc.) (not shown).

なお、上記実施形態の説明は、本発明に係る外装箱およびバッグインボックスにおける一態様を示すものであって、本発明の技術範囲は、上記実施形態に限定されるものではない。本発明は技術的思想の趣旨を逸脱しない範囲において様々に変更、置換、変形されてもよく、特許請求の範囲は技術的思想の範囲内に含まれ得る全ての実施態様を含んでいる。 It should be noted that the description of the above embodiment shows one aspect of the exterior box and the bag-in-box according to the present invention, and the technical scope of the present invention is not limited to the above embodiment. The present invention may be changed, replaced, and modified in various ways without departing from the spirit of the technical idea, and the claims include all embodiments that can be included within the scope of the technical idea.

１バッグインボックス
２内袋
２Ａ注出口
３，４，５外装箱
１０第１側壁
１１第２側壁（壁部）
１２第１閉塞片（底部）
１３第２閉塞片（底部）
１４第３閉塞片（底部）
１５天壁（天部）
１６傾斜壁（壁部）
２６把手部
２７フック部
３０開口部
３１切目線
３２第１側片
３３，３４，３５第２側片
３６係止穴
４０下内フラップ（壁部）
４１下外フラップ
Ｌ１２ヒンジ線
Ｌ１３補助線
Ｌ１４，Ｌ１７積層折線 Reference Signs List 1 bag-in-box 2 inner bag 2A spout 3, 4, 5 exterior box 10 first side wall 11 second side wall (wall portion)
12 first closure piece (bottom)
13 Second closure piece (bottom)
14 Third blocking piece (bottom)
15 Ceiling wall (top)
16 Inclined wall (wall part)
26 handle 27 hook 30 opening 31 cut line 32 first side piece 33, 34, 35 second side piece 36 locking hole 40 lower inner flap (wall)
41 lower outer flap L12 hinge line L13 auxiliary line L14, L17 laminated folding line

Claims

An outer box (3, 4, 5) containing an inner bag (2) having a spout (2A),
an opening (30) drilled in the walls (11, 16) constituting the outer casing and exposing the spout;
It is formed between a pair of cut lines (31) cut into the wall from the opening, and is provided so as to be openable and closable around a hinge line (L12) connecting the tips of the pair of cut lines, a first side piece (32) opened when exposing the spout from the opening and closed after exposing the spout from the opening;
The first side piece which is formed larger than the first side piece, is connected to the wall portion via laminated folding lines (L14, L17), and is folded inwardly or outwardly along the laminated folding lines to be closed. and a second side piece (33, 34, 35) held in a laminated state on the wall.

An auxiliary line (L13) is formed on the first side piece in parallel with the hinge line,
In the process of closing the first side piece, the tip of the first side piece is bent so as to protrude outward at the auxiliary line, so that the tip of the first side piece is directed toward the base end of the spout,
2. When the first side piece bent by the auxiliary line is expanded and closed, the tip of the first side piece is engaged with the base end of the spout. Outer box as described.

3. The second side piece according to claim 1, wherein the second side piece is laminated on the first side piece and the wall portion in a state where the tip thereof is engaged with the base end portion of the spout. outer box.

a peripheral wall (W) formed in a cylindrical shape by alternately connecting a pair of first side walls (10) and a pair of second side walls (11);
a bottom portion (12, 13, 14) closing the lower surface opening of the peripheral wall;
a pair of ceiling walls (15) connected to the upper ends of the pair of first side walls, closing the top opening of the peripheral wall, and having a handle (26) held by a user;
A pair of inclined walls (16) connected to the upper ends of the pair of second side walls and connected to the pair of ceiling walls in a posture tilted inward from each other,
The opening is formed in an upper portion of one of the inclined walls or one of the second side walls as the wall,
The first side piece is adjacent to the upper side of the opening and is formed from one of the inclined walls or one of the second side walls to one of the inclined walls,
The second side piece is connected to the upper end of one of the inclined walls,
Locking holes (36) are formed in the first side piece, the second side piece and the other inclined wall, respectively,
The handle portion has a pair of hook portions (27 ) is formed in the exterior box according to any one of claims 1 to 3.

a peripheral wall (W) formed in a cylindrical shape by alternately connecting a pair of first side walls (10) and a pair of second side walls (11);
a top portion (15) that closes the upper opening of the peripheral wall;
a pair of lower inner flaps (40) connected to the lower ends of the pair of second side walls and closing at least a portion of the lower surface openings of the peripheral walls;
a pair of lower outer flaps (41) connected to the lower ends of the pair of first side walls and stacked on the surfaces of the pair of lower inner flaps that close at least a portion of the lower opening,
The opening is formed in a lower portion of one of the second side walls as the wall,
The first side piece is adjacent to the lower side of the opening and is formed from one of the second side walls as the wall or from one of the second side walls to one of the lower inner flaps,
4. The outer box according to any one of claims 1 to 3, wherein the second side piece is formed as at least part of one of the lower inner flaps.

an inner bag (2) having an outlet (2A);
A bag-in-box, comprising: an outer box (3, 4, 5) according to any one of claims 1 to 5, which stores the inner bag.