JP6865156B2

JP6865156B2 - Packaging box

Info

Publication number: JP6865156B2
Application number: JP2017249094A
Authority: JP
Inventors: 佳奈小澤; 貴史五十嵐; 良枝山内
Original assignee: Nisshin Oillio Group Ltd; Tomoku KK
Current assignee: Nisshin Oillio Group Ltd; Tomoku KK
Priority date: 2017-12-26
Filing date: 2017-12-26
Publication date: 2021-04-28
Anticipated expiration: 2037-12-26
Also published as: JP2019112133A

Description

本発明は、包装箱に関する。 The present invention relates to a packaging box.

従来、天面と底面とが夫々一対の内フラップの外面に一対の外フラップを重ね合わせて貼り合わせて閉塞される包装箱が知られている（例えば、特許文献１参照）。 Conventionally, there is known a packaging box in which a top surface and a bottom surface are closed by superimposing a pair of outer flaps on the outer surface of a pair of inner flaps and sticking them together (see, for example, Patent Document 1).

この包装箱は、外フラップに指を引っ掛けるための開口が設けられ、この開口を内フラップで閉塞している。これにより、外フラップに設けられた開口の段差部に指を引っ掛けて包装箱を持つことができると共に、包装箱内への埃の侵入を内フラップで防ぐことができる。 The packaging box is provided with an opening for hooking a finger on the outer flap, and the opening is closed by the inner flap. As a result, the packaging box can be held by hooking a finger on the stepped portion of the opening provided in the outer flap, and the inner flap can prevent dust from entering the packaging box.

特許第５６０８４３８号公報Japanese Patent No. 5608438

従来の包装箱の取っ手では、外フラップの開口によって形成される段差部に指を引っ掛けるだけであるため、指が引っ掛かる部分が小さく持ち難いという問題があった。 In the conventional packaging box handle, since the finger is only hooked on the step portion formed by the opening of the outer flap, there is a problem that the portion where the finger is caught is small and difficult to hold.

本発明は、以上の点に鑑み、内部に埃が入り難くすることができると共に、取っ手に指を掛け易い包装箱を提供することを目的とする。 In view of the above points, it is an object of the present invention to provide a packaging box that can prevent dust from entering the inside and that makes it easy to put a finger on the handle.

［１］上記目的を達成するため、本発明の包装箱は、
筒状の胴部（例えば、実施形態の胴部２。以下同一。）と、
前記胴部の開口端縁（例えば、実施形態の開口端縁２ａ，２ｂ。以下同一。）に前記胴部内側に折り曲げられて設けられた内フラップ（例えば、実施形態の天面内フラップ３、底面内フラップ１９。以下同一。）と、
前記胴部の開口端縁であって前記胴部内側に折り曲げられて前記内フラップの上に重なるように設けられた外フラップ（例えば、実施形態の天面外フラップ４、底面外フラップ２０。以下同一。）と、
前記外フラップに設けられた切込部（例えば、実施形態の切込部１６。以下同一。）によって該切込部の内側に形成され、先端を遥動して内側に折り込まれた外側中折部（例えば、実施形態の外側中折部９。以下同一。）と、
前記内フラップであって、前記外側中折部に対応する部分に位置させて、先端を遥動して内側に折り込まれた内側中折部（例えば、実施形態の内側中折部８。以下同一。）と、
を備え、
前記外側中折部と前記内側中折部とは、前記外側中折部と前記内側中折部とを夫々内側に折り込む前の状態において、前記外側中折部の基端から先端に向かう先端方向と前記内側中折部の先端から基端に向かう基端方向とが平行な方向となるように、配置されており、
内側に折り込まれた前記外側中折部の一部が前記内側中折部の表面（例えば、実施形態の表面８ｃ。以下同一。）に接触していることを特徴とする。 [1] In order to achieve the above object, the packaging box of the present invention is used.
With a tubular body (for example, body 2 of the embodiment; the same applies hereinafter),
An inner flap (for example, the top surface inner flap 3 of the embodiment) provided by being bent inside the body portion at the open end edge of the body portion (for example, the open end edges 2a and 2b of the embodiment; the same applies hereinafter). Flap 19 in the bottom. The same applies hereinafter.)
An outer flap (for example, a top outer flap 4 and a bottom outer flap 20 of the embodiment, which is an open end edge of the body portion and is bent inward of the body portion and is provided so as to overlap the inner flap. Same.) And
An outer middle fold formed inside the notch by a notch provided in the outer flap (for example, the notch 16 of the embodiment; the same applies hereinafter), and the tip is moved far and folded inward. (For example, the outer middle fold portion 9 of the embodiment; the same shall apply hereinafter).
The inner middle fold portion of the inner flap, which is located at a portion corresponding to the outer middle fold portion and is folded inward by moving the tip far away (for example, the inner middle fold portion 8 of the embodiment. .)When,
With
The outer middle fold portion and the inner middle fold portion are in a state before the outer middle fold portion and the inner middle fold portion are folded inward, respectively, in the direction of the tip toward the tip from the base end of the outer middle fold portion. And the direction from the tip of the inner middle fold to the base end are arranged so as to be parallel to each other.
A part of the outer middle fold portion folded inward is in contact with the surface of the inner middle fold portion (for example, the surface 8c of the embodiment; the same applies hereinafter).

かかる構成によれば、外側中折部と内側中折部とで包装箱内への埃の侵入を抑えることができる。また、外側中折部が内側へ折り曲げられることにより形成される外フラップの開口に指を差し入れると、外側中折部と接触していた内側中折部を更に内側へ押し込むように開口を広げながら、使用者は、外側中折部に沿ってしっかりと包装箱をつかむことができる。これにより、包装箱内に比較的重いものが収納されている場合であっても、使用者は、外側中折部によって形成される取手部をしっかりと握ることができる。 According to such a configuration, it is possible to suppress the intrusion of dust into the packaging box at the outer middle fold portion and the inner middle fold portion. Also, when a finger is inserted into the opening of the outer flap formed by bending the outer middle fold part inward, the opening is widened so as to push the inner middle fold part that was in contact with the outer middle fold part further inward. However, the user can firmly grasp the packaging box along the outer middle fold. As a result, the user can firmly grasp the handle portion formed by the outer middle fold portion even when a relatively heavy object is stored in the packaging box.

［２］また、本発明においては、前記外側中折部は、前記外側中折部の基端縁と平行な折目線を介して連設された複数の分割片（例えば、実施形態の第１分割片６、第２分割片７。以下同一。）で構成されることが好ましい。 [2] Further, in the present invention, the outer middle fold portion is a plurality of divided pieces (for example, the first embodiment) which are continuously provided via a crease line parallel to the base end edge of the outer middle fold portion. It is preferably composed of the divided piece 6 and the second divided piece 7. The same shall apply hereinafter).

かかる構成によれば、内側へ折り曲げられた分割片同士が復元力によって互いに離れようとする力が分割片の間に発生する。このため、同じく復元力によって内フラップの開口を閉塞しようとする内側中折部を分割片同士の復元力によって押し戻そうとして、外側中折部と内側中折部とが適切に係合して閉塞状態を維持することができる。 According to such a configuration, a force is generated between the divided pieces so that the divided pieces bent inward are separated from each other by the restoring force. Therefore, the outer middle fold portion and the inner middle fold portion are properly engaged with each other in an attempt to push back the inner middle fold portion which also tries to close the opening of the inner flap by the restoring force by the restoring force of the divided pieces. The blocked state can be maintained.

また、複数の分割片が内側へ折れ曲がるため、外側中折部を把持した使用者は、外側中折部の先端を介して包装箱の荷重が手の平に加わることがなく、容易に外側中折部に手を掛けることができる。 Further, since the plurality of divided pieces are bent inward, the user who grips the outer middle fold portion can easily hold the outer middle fold portion without applying the load of the packaging box to the palm through the tip of the outer middle fold portion. Can be touched.

また、外側中折部及び内側中折部によって外フラップ及び内フラップに形成される開口は、埃侵入防止の観点から考えれば、小さいほうが好ましいが、取っ手として使用者の手の平が挿入されることを考慮するとある程度の大きさが望まれる。そして、内側中折部ができるだけ開かないようにするためには、外側中折部における基端から内側中折部に最初に接触する部分までの距離ができるだけ短いことが好ましい。 Further, the openings formed in the outer flap and the inner flap by the outer middle fold portion and the inner middle fold portion are preferably small from the viewpoint of preventing dust intrusion, but the palm of the user is inserted as a handle. Considering this, a certain size is desired. Then, in order to prevent the inner middle fold portion from opening as much as possible, it is preferable that the distance from the base end of the outer middle fold portion to the portion that first contacts the inner middle fold portion is as short as possible.

しかしながら、外側中折部の先端が内側中折部の表面に当接するように構成した場合、外フラップの開口を大きくし、外側中折部の長さを短くすると、切込部と外側中折部の先端との間の部分を切り落とす必要があり、製造過程でゴミが比較的多く発生してしまう。 However, when the tip of the outer middle fold is configured to abut on the surface of the inner middle fold, if the opening of the outer flap is increased and the length of the outer middle fold is shortened, the notch and the outer middle fold are made. It is necessary to cut off the part between the part and the tip of the part, and a relatively large amount of dust is generated in the manufacturing process.

これに対し、上述した本発明の如く複数の分割片で外側中折部を構成すれば、外側中折部の先端で内側中折部の表面に係合させる必要がなく、製造過程におけるゴミの発生を低減することができる。 On the other hand, if the outer middle fold portion is composed of a plurality of divided pieces as in the present invention described above, it is not necessary to engage the outer middle fold portion with the surface of the inner middle fold portion at the tip of the outer middle fold portion. Occurrence can be reduced.

［３］また、本発明においては、前記外フラップに設けられた前記切込部はＵ字状とすることができる。 [3] Further, in the present invention, the cut portion provided in the outer flap can be U-shaped.

［４］また、本発明においては、
前記包装箱は、注出口を備えた内袋を収容し、天面と底面とを備えるバッグインボックスタイプの包装箱であり、
前記内フラップと前記外フラップとで前記天面を構成し、
前記天面には、前記注出口を突出させるための注出口対応部（例えば、実施形態の注出口用破断部５。以下同一。）が設けられ、
前記包装箱を傾けて注出口から内袋の内容物が注出される側を前方として、
前記注出口対応部に対して、前記前方とは反対の後方に前記外側中折部と前記内側中折部とが配置されており、
前記内側中折部の基端は先端よりも前記前方に位置することが好ましい。 [4] Further, in the present invention,
The packaging box is a bag-in-box type packaging box that houses an inner bag having a spout and has a top surface and a bottom surface.
The top surface is composed of the inner flap and the outer flap.
The top surface is provided with a spout corresponding portion (for example, a spout breaking portion 5 of the embodiment; the same applies hereinafter) for projecting the spout.
Tilt the packaging box so that the side from which the contents of the inner bag are poured out from the spout is the front.
The outer middle fold portion and the inner middle fold portion are arranged at the rear opposite to the front with respect to the spout corresponding portion.
The base end of the inner middle fold portion is preferably located in front of the tip end.

かかる構成によれば、包装箱から突出する注出口の後方に位置する外側中折部に手を掛けて、容易に包装箱を傾けて内袋の注出口から内容物を注出させることができる。 According to this configuration, the outer middle fold portion located behind the spout protruding from the packaging box can be easily tilted to eject the contents from the spout of the inner bag. ..

［５］また、本発明においては、
前記包装箱は、注出口を備えた内袋を収容し、天面と底面とを備えるバッグインボックスタイプの包装箱であり、
前記内フラップと前記外フラップとで前記底面を構成し、
前記天面には、前記注出口を突出させるための注出口対応部が設けられ、
前記包装箱を傾けて注出口から内袋の内容物が注出される側を前方とし、前記前方とは反対の方向を後方として、
前記底面には、複数の前記外側中折部及び前記内側中折部が設けられ、
前記内側中折部の先端は、前記後方側に位置し、前記内側中折部の基端は前記前方側に位置することが好ましい。 [5] Further, in the present invention,
The packaging box is a bag-in-box type packaging box that houses an inner bag having a spout and has a top surface and a bottom surface.
The bottom surface is composed of the inner flap and the outer flap.
On the top surface, a spout corresponding portion for projecting the spout is provided.
The side in which the contents of the inner bag are poured out from the spout by tilting the packaging box is the front, and the direction opposite to the front is the rear.
A plurality of the outer middle fold portion and the inner middle fold portion are provided on the bottom surface.
It is preferable that the tip of the inner middle fold portion is located on the rear side and the base end of the inner middle fold portion is located on the front side.

かかる構成によれば、包装箱を傾けて内袋から内容物を抽出させるときに、内袋の内容物の残量に応じて底面の取手部の位置を選択することができる。特に、左右方向ではなく前後方向に間隔を存して複数の前記外側中折部及び前記内側中折部を設ける場合には、内容物の残量に応じて適切に抽出させることができる。 According to such a configuration, when the packaging box is tilted to extract the contents from the inner bag, the position of the handle portion on the bottom surface can be selected according to the remaining amount of the contents of the inner bag. In particular, when a plurality of the outer middle folds and the inner middle folds are provided at intervals in the front-rear direction instead of the left-right direction, the contents can be appropriately extracted according to the remaining amount of the contents.

［６］また、本発明においては、前記外側中折部は、接続部（例えば、実施形態の接続部１６ａ。以下同一。）を備えた前記切込部によって、前記外フラップに形成されていることが好ましい。 [6] Further, in the present invention, the outer middle folding portion is formed on the outer flap by the notch portion provided with the connecting portion (for example, the connecting portion 16a of the embodiment; the same applies hereinafter). Is preferable.

かかる構成によれば、外側中折部を内側へ折り曲げて取っ手とする前の状態においては、外側中折部とが外フラップと面一となって開口が存在しないため、取っ手を形成する前の状態における包装箱内への埃やゴミなどの侵入を防止することができる。 According to this configuration, in the state before the outer middle fold portion is bent inward to form the handle, the outer middle fold portion is flush with the outer flap and there is no opening, so that the handle is not formed. It is possible to prevent dust and dirt from entering the packaging box in the state.

［７］また、本発明の包装箱は、
筒状の胴部と、
前記胴部の開口端縁に前記胴部内側に折り曲げられて設けられた内フラップと、
前記胴部の開口端縁であって前記胴部内側に折り曲げられて前記内フラップの上に重なるように設けられた外フラップと、
前記外フラップに設けられた切込部によって該切込部の内側に形成され、先端を遥動して内側に折り込まれた外側中折部と、
を備え、
前記外側中折部は、前記外側中折部の基端縁と平行な折目線を介して連設された複数の分割片で構成されており、
内側に折り込まれた前記外側中折部の一部が前記内フラップの表面に接触していることを特徴とする。 [7] Further, the packaging box of the present invention is
Cylindrical body and
An inner flap provided on the end edge of the opening of the body by being bent inside the body,
An outer flap that is an open edge of the body and is bent inward of the body so as to overlap the inner flap.
An outer middle fold portion formed inside the notch portion by a notch portion provided in the outer flap and folded inward by moving the tip far away.
With
The outer middle fold portion is composed of a plurality of divided pieces connected through a crease line parallel to the base end edge of the outer middle fold portion.
A part of the outer middle fold portion folded inward is in contact with the surface of the inner flap.

かかる構成によれば、外側中折部と内フラップとで包装箱内への埃の侵入を抑えることができる。また、外側中折部が内側へ折り曲げられることにより形成される外フラップの開口に指を差し入れると、外側中折部と接触していた内フラップを更に内側へ押し込むように開口を広げながら、使用者は、外側中折部に沿ってしっかりと包装箱をつかむことができる。これにより、包装箱内に比較的重いものが収納されている場合であっても、使用者は、外側中折部によって形成される取手部をしっかりと握ることができる。 According to such a configuration, the intrusion of dust into the packaging box can be suppressed by the outer middle fold portion and the inner flap. Further, when a finger is inserted into the opening of the outer flap formed by bending the outer middle fold portion inward, the opening is widened so as to push the inner flap that was in contact with the outer middle fold portion further inward. The user can firmly grasp the packaging box along the outer middle fold. As a result, the user can firmly grasp the handle portion formed by the outer middle fold portion even when a relatively heavy object is stored in the packaging box.

また、内側へ折り曲げられた分割片同士が復元力によって互いに離れようとする力が分割片の間に発生する。このため、同じく復元力によって開口を閉塞しようとする内フラップを分割片同士の復元力によって押し戻そうとして、外側中折部と内フラップとが適切に係合して閉塞状態を維持することができる。 In addition, a force is generated between the divided pieces so that the divided pieces bent inward are separated from each other by the restoring force. For this reason, the inner flap, which also tries to close the opening by the restoring force, tries to be pushed back by the restoring force of the divided pieces, and the outer middle fold portion and the inner flap can be appropriately engaged to maintain the closed state. it can.

また、外側中折部及び内フラップによって外フラップに形成される開口は、埃侵入防止の観点から考えれば、小さいほうが好ましいが、取っ手として使用者の手の平が挿入されることを考慮するとある程度の大きさが望まれる。そして、内フラップができるだけ開かないようにするためには、外側中折部における基端から内フラップに最初に接触する部分までの距離ができるだけ短いことが好ましい。 Further, the opening formed in the outer flap by the outer middle fold portion and the inner flap is preferably small from the viewpoint of preventing dust intrusion, but is large to some extent considering that the palm of the user is inserted as a handle. Is desired. Then, in order to prevent the inner flap from opening as much as possible, it is preferable that the distance from the base end of the outer middle fold portion to the portion that first contacts the inner flap is as short as possible.

しかしながら、外側中折部の先端が内フラップの表面に当接するように構成した場合、外フラップの開口を大きくし、外側中折部の長さを短くすると、切込部と外側中折部の先端との間の部分を切り落とす必要があり、製造過程でゴミが比較的多く発生してしまう。 However, when the tip of the outer middle fold is configured to abut on the surface of the inner flap, if the opening of the outer flap is increased and the length of the outer middle fold is shortened, the notch and the outer middle fold will be formed. It is necessary to cut off the part between the tip and the tip, which causes a relatively large amount of dust to be generated during the manufacturing process.

本発明の包装箱を示す説明図。Explanatory drawing which shows the packaging box of this invention. 本実施形態の外側中折部及び内側中折部を断面で示す説明図。Explanatory drawing which shows the outer middle fold part and the inner middle fold part of this embodiment in cross section. 本実施形態の包装箱を展開して示す説明図。Explanatory drawing which unfolds and shows the packaging box of this embodiment.

図を参照して、本発明の包装箱の実施形態を説明する。本実施形態の包装箱は、注出口を備えた内袋を収容するバッグインボックスタイプの包装箱である。図１に示すように、本実施形態の包装箱１は、天面側の開口端縁２ａと底面側の開口端縁２ｂとを有する四角筒状の胴部２を備える。 An embodiment of the packaging box of the present invention will be described with reference to the drawings. The packaging box of the present embodiment is a bag-in-box type packaging box that houses an inner bag provided with a spout. As shown in FIG. 1, the packaging box 1 of the present embodiment includes a square tubular body portion 2 having an open end edge 2a on the top surface side and an open end edge 2b on the bottom surface side.

天面側の開口端縁２ａには、互いに対向する一対の辺（図３の折目線Ｌ７参照）に設けられた一対の天面内フラップ３，３と、天面側の開口端縁２ａであって、天面内フラップ３が設けられた辺（図３の折目線Ｌ７参照）に隣接して互いに対向する一対の辺（図３の折目線Ｌ８参照）に設けられた一対の天面外フラップ４，４と、一方の天面外フラップ４に設けられ収容された内袋の注出口を突出させるための注出口用破断部５と、を備える。 The opening edge 2a on the top surface is formed by a pair of in-top flaps 3 and 3 provided on a pair of sides facing each other (see the crease line L7 in FIG. 3) and an opening edge 2a on the top surface side. Therefore, a pair of outside the top surface provided on a pair of sides (see the crease line L8 in FIG. 3) adjacent to the side provided with the in-top flap 3 (see the fold line L7 in FIG. 3) and facing each other. The flaps 4 and 4 are provided, and a spout breaking portion 5 for projecting the spout of the inner bag provided and housed in one of the top outer flaps 4 is provided.

図２に示すように、他方の天面外フラップ４は、Ｕ字状（Ｃ字型を含む）に切り込まれて形成され、切り込まれた内側を、折目線Ｌ１を介して内側に遥動させて折り込むことで形成される第１分割片６と、第１分割片６の先端６ａに折目線Ｌ２を介して連設され、更に内側に折り込むことで形成される第２分割片７と、を備える。折目線Ｌ２は、外側中折部９の基端縁としての折目線Ｌ１に対して平行となっている。ここで、折目線Ｌ１と折目線Ｌ２とは、厳密な意味での平行のみならず、ほぼ平行といえる程度の平行であってもよい。 As shown in FIG. 2, the other outer flap 4 is formed by being cut into a U shape (including a C shape), and the inside of the cut is far inward through the crease line L1. A first divided piece 6 formed by moving and folding, and a second divided piece 7 formed by being connected to the tip 6a of the first divided piece 6 via a crease line L2 and further folding inward. , Equipped with. The fold line L2 is parallel to the fold line L1 as the base end edge of the outer middle fold portion 9. Here, the crease line L1 and the crease line L2 are not only parallel in a strict sense, but may be parallel to the extent that they are almost parallel.

天面内フラップ３は、第１分割片６及び第２分割片７に対応する部分（重なる領域）に位置させてＵ字状（Ｃ字型を含む）に切り込まれて形成され、切り込まれた内側を、内側に遥動させて折り込むことで形成される内側中折部８を備える。内側中折部８が内側へ折り曲げられることにより、第１分割片６及び第２分割片７を内側へ折り込むことが可能となる。本実施形態においては、第１分割片６及び第２分割片７で外側中折部９が構成される。 The flap 3 in the top surface is formed by being positioned in a portion (overlapping region) corresponding to the first divided piece 6 and the second divided piece 7 and is cut into a U shape (including a C shape), and the cut is formed. The inner middle fold portion 8 formed by folding the rolled inner side by moving it inward is provided. By bending the inner middle fold portion 8 inward, the first divided piece 6 and the second divided piece 7 can be folded inward. In the present embodiment, the outer middle fold portion 9 is composed of the first divided piece 6 and the second divided piece 7.

第１分割片６の基端６ｂは、先端６ａに対し、内側中折部８の遥動する自由端である先端８ａと同じ側の後方に位置している。第１分割片６の遥動する自由端としての先端６ａは、基端６ｂに対し、内側中折部８の基端８ｂと同じ側の前方に位置している。内側中折部８の先端８ａは基端８ｂに対して後方に位置している。 The base end 6b of the first divided piece 6 is located behind the tip 6a on the same side as the tip 8a, which is the free end of the inner middle folding portion 8 that moves far away. The tip 6a of the first split piece 6 as a free end that moves far away is located in front of the base end 6b on the same side as the base end 8b of the inner middle fold portion 8. The tip 8a of the inner middle fold portion 8 is located rearward with respect to the base end 8b.

内側に折り込まれた第２分割片７の表面７ｃは、内側中折部８の表面８ｃと接触している。ここで、表面７ｃ、８ｃとは、包装箱１の外面に連なる面であり、包装箱１の内面とは異なる面である。 The surface 7c of the second divided piece 7 folded inward is in contact with the surface 8c of the inner middle fold portion 8. Here, the surfaces 7c and 8c are surfaces that are continuous with the outer surface of the packaging box 1 and are different from the inner surface of the packaging box 1.

図３は、本実施形態の包装箱１の展開した状態を示している。図３に示すように、本実施形態の包装箱１は、１枚の段ボール原紙から打ち抜いた１枚の段ボール板紙１０を折り曲げて組み立てられるものである。 FIG. 3 shows an unfolded state of the packaging box 1 of the present embodiment. As shown in FIG. 3, the packaging box 1 of the present embodiment is assembled by bending one corrugated cardboard paperboard 10 punched from one corrugated cardboard base paper.

この段ボール板紙１０は、胴部２を構成する長方形状の右側板１１と、右側板１１の側縁に折目線Ｌ３を介して連設される長方形状の前板１２と、前板１２の側縁に折目線Ｌ４を介して連設される長方形状の左側板１３と、左側板１３の側縁に折目線Ｌ５を介して連設される長方形状の後板１４と、後板１４の側縁に折目線Ｌ６を介して連設され、右側板１１に接着するための接着片１５と、を備える。 The corrugated cardboard paperboard 10 includes a rectangular right side plate 11 constituting the body portion 2, a rectangular front plate 12 connected to the side edge of the right side plate 11 via a crease line L3, and a side of the front plate 12. A rectangular left plate 13 connected to the edge via the fold line L4, a rectangular rear plate 14 connected to the side edge of the left plate 13 via the fold line L5, and a side of the rear plate 14. It is provided with an adhesive piece 15 which is connected to the edge via the crease line L6 and for adhering to the right side plate 11.

右側板１１及び左側板１３の上縁には、折目線Ｌ７，Ｌ７を介して天面内フラップ３，３が夫々連設されている。前板１２及び後板１４の上縁には、折目線Ｌ８を介して天面外フラップ４，４が夫々連設されている。前板１２の上縁に連設される天面外フラップ４には、収容される内袋の注出口を突出させるために破断可能な注出口用破断部５が設けられている。 In-top flaps 3 and 3 are connected to the upper edges of the right side plate 11 and the left side plate 13 via the crease lines L7 and L7, respectively. Outer top flaps 4 and 4 are connected to the upper edges of the front plate 12 and the rear plate 14 via the crease line L8, respectively. The top surface outer flap 4 connected to the upper edge of the front plate 12 is provided with a breakable portion 5 for a spout that can be broken in order to project the spout of the inner bag to be accommodated.

後板１４の上縁に連設される天面外フラップ４には、図３における下方に折目線Ｌ１が位置するようにＵ字状（Ｃ字型を含む）に切り込まれた切込部１６によって、第１分割片６及び第２分割片７からなる外側中折部９が形成されている。なお、切込部１６は、完全に切断されておらず、部分的に接続された接続部１６ａを有する。 The outer flap 4 connected to the upper edge of the rear plate 14 has a U-shaped (including C-shaped) cut portion so that the crease line L1 is located below in FIG. The outer middle fold portion 9 composed of the first divided piece 6 and the second divided piece 7 is formed by 16. The cut portion 16 is not completely cut and has a partially connected connecting portion 16a.

この接続部１６ａにより、第１分割片６及び第２分割片７を取手として利用する前の状態においては、第１分割片６及び第２分割片７が内側に折り込まれておらず、天面外フラップ４に開口が形成されていないため、取手を利用する前の状態における包装箱１内への埃やゴミなどの侵入を防ぐことができる。 Due to the connecting portion 16a, the first divided piece 6 and the second divided piece 7 are not folded inward in the state before the first divided piece 6 and the second divided piece 7 are used as handles, and the top surface is not folded. Since the outer flap 4 is not formed with an opening, it is possible to prevent dust and dirt from entering the packaging box 1 in a state before using the handle.

天面内フラップ３には、包装箱１が組み立てられたときに、天面外フラップ４の第１分割片６及び第２分割片７に対応する部分（重なる領域）に位置するように、Ｊ字状の切込部１７が設けられている。切込部１７は、天面内フラップ３の先端まで延びており、切込部１７と天面内フラップ３の先端縁とで、折目線Ｌ９を介して内側へ遥動して折り曲げ可能な内側中折部８の半体８ｅを構成している。包装箱１が組み立てられると２つの半体８ｅ，８ｅで１つの内側中折部８として機能する。 When the packaging box 1 is assembled, the inner flap 3 has a J so as to be located at a portion (overlapping region) corresponding to the first divided piece 6 and the second divided piece 7 of the outer flap 4. A character-shaped notch 17 is provided. The notch 17 extends to the tip of the in-top flap 3, and the notch 17 and the tip edge of the in-top flap 3 move inward through the crease line L9 and can be bent inward. It constitutes the half body 8e of the middle fold portion 8. When the packaging box 1 is assembled, the two halves 8e and 8e function as one inner middle fold portion 8.

また、天面内フラップ３には、天面外フラップ４に設けられた注出口用破断部５（注出口用対応部）から内袋の注出口を突出させる際に、天面内フラップ３が邪魔とならないように切り欠かれた切欠部１８が設けられている。この切欠部１８によって、天面内フラップ３はＬ字状となっている。また、両天面内フラップ３は、図３の展開図において左右対称形状となっている。 Further, the inner flap 3 on the top surface has an inner flap 3 on the top surface when the outlet of the inner bag is projected from the spout breaking portion 5 (corresponding portion for the spout) provided on the outer flap 4 on the top surface. A notch 18 is provided so as not to get in the way. Due to the notch 18, the flap 3 in the top surface is L-shaped. Further, the flaps 3 in both top surfaces have a symmetrical shape in the developed view of FIG.

右側板１１及び左側板１３の下縁には、折目線Ｌ１０，Ｌ１０を介して底面内フラップ１９，１９が夫々連設されている。前板１２及び後板１４の下縁には、折目線Ｌ１１，Ｌ１１を介して底面外フラップ２０，２０が夫々連設されている。 Flaps 19 and 19 in the bottom surface are continuously provided on the lower edges of the right side plate 11 and the left side plate 13 via the fold lines L10 and L10, respectively. On the lower edges of the front plate 12 and the rear plate 14, bottom outer flaps 20 and 20 are continuously provided via the fold lines L11 and L11, respectively.

前板１２の下縁に連設される底面外フラップ２０には、図３における下方に折目線Ｌ１２が位置するようにＵ字状（Ｃ字型を含む）に切り込まれた切込部１６によって、第１分割片６及び第２分割片７が形成されている。この第２分割片７は、第１分割片６の先端６ａに折目線Ｌ１３を介して遥動自在に連設されている。また、天面と同様に底面の切込部１６も完全に切断されておらず、部分的に接続された接続部１６ａを有する。 The bottom outer flap 20 connected to the lower edge of the front plate 12 is cut into a U-shape (including a C-shape) so that the crease line L12 is located below in FIG. The first divided piece 6 and the second divided piece 7 are formed by the above. The second divided piece 7 is continuously provided at the tip 6a of the first divided piece 6 via the crease line L13 so as to be freely movable. Further, like the top surface, the notch portion 16 on the bottom surface is not completely cut, and has a partially connected connection portion 16a.

後板１４の下縁に連設される底面外フラップ２０には、図３における上方に折目線Ｌ１４が位置するようにＵ字状（Ｃ字型を含む）に切り込まれた切込部１６によって、第１分割片６及び第２分割片７が形成されている。この第２分割片７は、第１分割片６の先端６ａに折目線Ｌ１５を介して遥動自在に連設されている。また、この底面外フラップ２０に設けられた切込部１６も完全に切断されておらず、部分的に接続された接続部１６ａを有する。 The bottom outer flap 20 connected to the lower edge of the rear plate 14 is cut into a U-shape (including a C-shape) so that the crease line L14 is located upward in FIG. The first divided piece 6 and the second divided piece 7 are formed by the above. The second divided piece 7 is continuously provided at the tip 6a of the first divided piece 6 via the crease line L15 so as to be freely movable. Further, the cut portion 16 provided in the bottom outer flap 20 is also not completely cut, and has a partially connected connecting portion 16a.

底面を構成する底面外フラップ２０の接続部１６ａによれば、第１分割片６及び第２分割片７を取手として利用する前の状態においては、第１分割片６及び第２分割片７が内側に折り込まれておらず、天面外フラップ４に開口が形成されていないため、取手を利用する前の状態における包装箱１内への埃やゴミなどの侵入を防ぐことができる。 According to the connection portion 16a of the bottom outer flap 20 constituting the bottom surface, the first division piece 6 and the second division piece 7 are in the state before being used as the handle of the first division piece 6 and the second division piece 7. Since it is not folded inward and the flap 4 outside the top surface is not formed with an opening, it is possible to prevent dust and dirt from entering the packaging box 1 in the state before using the handle.

底面内フラップ１９には、包装箱１が組み立てられたときに、天面外フラップ４の第１分割片６及び第２分割片７に対応する部分（重なる領域）に位置するように、Ｊ字状の切込部１７と天面内フラップ３の先端縁とで、折目線Ｌ１６を介して内側へ遥動して折曲可能な内側中折部８の半体８ｅを構成している。包装箱１が組み立てられると２つの半体８ｅ，８ｅで１つの内側中折部８として機能する。 The bottom inner flap 19 has a J-shape so as to be located at a portion (overlapping region) corresponding to the first divided piece 6 and the second divided piece 7 of the outer surface flap 4 when the packaging box 1 is assembled. The shaped cut portion 17 and the tip edge of the flap 3 in the top surface form a half body 8e of the inner middle fold portion 8 that can be bent inward through the fold line L16. When the packaging box 1 is assembled, the two halves 8e and 8e function as one inner middle fold portion 8.

以上のように構成される段ボール板紙１０を組み立てるには、まず、折目線Ｌ３〜Ｌ６で折り曲げて、右側板１１、前板１２、左側板１３、後板１４とで四角筒状の胴部２を形成し、接着片１５を右側板１１に接着する。次に、底面内フラップ１９を折目線Ｌ１０を介して内側へ直角に折り曲げる。そして、底面外フラップ２０を折目線Ｌ１１を介して内側へ直角に折り曲げ、底面内フラップ１９と底面外フラップ２０とを接着して胴部２の底面を閉塞する。このとき、第１分割片６及び第２分割片７が内側中折部８と接着されないように注意する。 In order to assemble the corrugated cardboard 10 configured as described above, first, the corrugated board 10 is bent along the crease lines L3 to L6, and the right side plate 11, the front plate 12, the left side plate 13, and the rear plate 14 form a square tubular body part 2. Is formed, and the adhesive piece 15 is adhered to the right side plate 11. Next, the bottom flap 19 is bent inward at a right angle via the crease line L10. Then, the bottom outer flap 20 is bent inward at a right angle via the crease line L11, and the bottom inner flap 19 and the bottom outer flap 20 are adhered to close the bottom surface of the body 2. At this time, care should be taken so that the first divided piece 6 and the second divided piece 7 are not adhered to the inner middle fold portion 8.

次に、胴部２に内袋を収容する。そして、天面内フラップ３を折目線Ｌ７を介して内側へ直角に折り曲げ、その後、天面外フラップ４を折目線Ｌ８を介して内側へ直角に折り曲げて、天面内フラップ３及び天面外フラップ４とを接着させる。このとき、第１分割片６及び第２分割片７が内側中折部８と接着されないように注意する。また、必要に応じて、前板１２の上縁に連設される天面外フラップ４に設けられた注出口用破断部５を破断して、図示省略した内袋の注出口が包装箱１の外方へ露出させる。 Next, the inner bag is housed in the body 2. Then, the in-top flap 3 is bent inward at a right angle through the crease line L7, and then the top-out outer flap 4 is bent inward at a right angle through the fold line L8, so that the in-top flap 3 and the outside of the top surface are bent. Adhere to the flap 4. At this time, care should be taken so that the first divided piece 6 and the second divided piece 7 are not adhered to the inner middle fold portion 8. Further, if necessary, the spouting break portion 5 provided on the top surface outer flap 4 connected to the upper edge of the front plate 12 is broken, and the spouting port of the inner bag (not shown) is the packaging box 1. Expose to the outside of.

このようにして、本実施形態の包装箱１が組み立てられる。 In this way, the packaging box 1 of the present embodiment is assembled.

本実施形態の包装箱１を使用する際には、包装箱１を傾けて注出口から内袋の内容物を注出させる。包装箱を傾けたときに注出口から内袋の内容物が注出される側を前方、前方の反対側を後方として、外側中折部９及び内側中折部８は、注出口用破断部５の後方に配置されている。 When using the packaging box 1 of the present embodiment, the packaging box 1 is tilted so that the contents of the inner bag are poured out from the spout. When the packaging box is tilted, the side from which the contents of the inner bag are poured out from the spout is the front, and the opposite side to the front is the rear. It is located behind.

本実施形態の包装箱１によれば、図２に示すように、外側中折部９と内側中折部８とが互いに支えあって、外側中折部９を構成する第１分割片６及び第２分割片７を内側に折り曲げることで形成される開口を閉じて、天面外フラップ４及び底面外フラップ２０の開口領域を小さくすることができる。このため、包装箱１内への埃やゴミなどの侵入を抑えることができる。 According to the packaging box 1 of the present embodiment, as shown in FIG. 2, the outer middle fold portion 9 and the inner middle fold portion 8 support each other, and the first divided piece 6 and the outer middle fold portion 9 constituting the outer middle fold portion 9 and The opening formed by bending the second divided piece 7 inward can be closed to reduce the opening area of the top surface outer flap 4 and the bottom surface outer flap 20. Therefore, it is possible to suppress the intrusion of dust and dirt into the packaging box 1.

また、第１分割片６及び第２分割片７が内側へ折り曲げられることにより形成される天面外フラップ４及び底面外フラップ２０の開口に指を差し入れると、第２分割片７の表面７ｃと接触していた内側中折部８を更に内側へ押し込むように天面外フラップ４の開口を広げながら、使用者は、第１分割片６及び第２分割片７に沿ってしっかりと包装箱１をつかむことができる。 Further, when a finger is inserted into the openings of the outer top flap 4 and the outer bottom flap 20 formed by bending the first divided piece 6 and the second divided piece 7 inward, the surface 7c of the second divided piece 7 is formed. While widening the opening of the top surface outer flap 4 so as to push the inner middle fold portion 8 that was in contact with the above surface further inward, the user firmly puts the packaging box along the first divided piece 6 and the second divided piece 7. You can grab one.

これにより、包装箱１内に比較的重いものが収容されている場合であっても、使用者は、第１分割片６及び第２分割片７からなる外側中折部９で構成される取手をしっかりと握ることができ、比較的容易に内容物を注出口から出すことができる。また、握る部分が増えるために、手の平にかかる荷重が分散し、使用者の負担を軽減させることができる。 As a result, even when a relatively heavy object is housed in the packaging box 1, the user can use the handle composed of the outer middle fold portion 9 composed of the first divided piece 6 and the second divided piece 7. Can be firmly grasped, and the contents can be taken out from the spout relatively easily. Further, since the grip portion is increased, the load applied to the palm is dispersed, and the burden on the user can be reduced.

さらに、使用者が指を挿入するときに、使用者は内側中折部８のみを内側へ押し込むだけで外側中折部９を把持することができるため、内側中折部８と共に外側中折部９をも内側へ押し込まなければ指を挿入できないものと比較して、指の挿入が容易となる。 Further, when the user inserts a finger, the user can grasp the outer middle fold portion 9 by simply pushing the inner middle fold portion 8 inward, so that the outer middle fold portion 8 and the outer middle fold portion 8 can be gripped. The finger can be easily inserted as compared with the case where the finger cannot be inserted unless the 9 is pushed inward.

また、本実施形態の包装箱１では、外側中折部９は、第１分割片６及び第２分割片７で構成され、底面に前後方向に間隔を存して２つの外側中折部９が形成されている。これにより、包装箱１を傾けて内袋から内容物を注出させるときに、内袋の内容物の残量に応じて使用する底面の外側中折部９の位置を選択することができ、内容物の残量に応じて適切に内容物を注出させることができる。 Further, in the packaging box 1 of the present embodiment, the outer middle fold portion 9 is composed of the first divided piece 6 and the second divided piece 7, and the two outer middle fold portions 9 are spaced apart from each other in the front-rear direction on the bottom surface. Is formed. As a result, when the packaging box 1 is tilted to eject the contents from the inner bag, the position of the outer middle fold portion 9 of the bottom surface to be used can be selected according to the remaining amount of the contents of the inner bag. The contents can be appropriately poured out according to the remaining amount of the contents.

なお、本実施形態においては四角筒状の胴部２を説明したが、本発明の胴部は筒状であればよく、他の形状、例えば六角筒状であってもよい。 Although the square tubular body portion 2 has been described in the present embodiment, the body portion of the present invention may be tubular, and may have another shape, for example, a hexagonal tubular shape.

また、本実施形態においては、包装箱１の天面と底面とが何れも内フラップと外フラップとで閉塞されたものを説明したが、本発明の包装箱は天面と底面との少なくとも何れか一方が内フラップと外フラップとで閉塞されていればよく、例えば、天面と底面の何れか一方のみが内フラップと外フラップとで閉塞され、他方は他の閉塞構造であってもよい。他の閉塞構造としては、例えば、フラップの側縁一方を隣接するフラップの側縁他方の内側に差し込むようにして４つのフラップが互いに支え合うようにして閉塞する構造がある。 Further, in the present embodiment, the case where the top surface and the bottom surface of the packaging box 1 are both closed by the inner flap and the outer flap has been described, but the packaging box of the present invention has at least one of the top surface and the bottom surface. One of them may be closed by the inner flap and the outer flap. For example, only one of the top surface and the bottom surface may be closed by the inner flap and the outer flap, and the other may have the other closed structure. .. As another closing structure, for example, there is a structure in which one side edge of a flap is inserted into the inside of the other side edge of an adjacent flap so that the four flaps support each other and close the block.

また、本実施形態としては、図１及び図３においてＣ字型の切込部１６を説明したが、本発明の切込部は、Ｕ字状（Ｕ字型、Ｃ字型、Ｖ字型、Ｊ字型、コ字型を含む）であればよく、例えば、切込部の形状はＵ字型、Ｖ字型、Ｊ字型、コ字型であってもよい。本発明においてＵ字状とは、一部が折目線Ｌ１を介して外フラップと接続するように切り欠かれているものを指し、外側中折部を形成することができればその形状に限定はないが、例えば、Ｕ字型、Ｃ字型、Ｖ字型、Ｊ字型、コ字型などの形状を含む概念として用いている。 Further, as the present embodiment, the C-shaped cut portion 16 has been described with reference to FIGS. 1 and 3, but the cut portion of the present invention is U-shaped (U-shaped, C-shaped, V-shaped). , J-shape, and U-shape). For example, the shape of the cut portion may be U-shaped, V-shaped, J-shaped, or U-shaped. In the present invention, the U-shape means a part cut out so as to be connected to the outer flap via the crease line L1, and the shape is not limited as long as the outer middle fold portion can be formed. However, for example, it is used as a concept including shapes such as U-shaped, C-shaped, V-shaped, J-shaped, and U-shaped.

また、本実施形態においては、折目線Ｌ１を、その両端が切込部１６の両端に接続されるものを説明したが、折目線Ｌ１はこれに限らず、例えば、折目線Ｌ１の一端を切込部１６の一端と接続し、折目線Ｌ１の他端を切込部１６の中間地点と接続してもよい。又は、折目線Ｌ１の両端を切込部１６の２つの中間地点に夫々接続させてもよい。 Further, in the present embodiment, the crease line L1 has been described in which both ends thereof are connected to both ends of the notch portion 16, but the crease line L1 is not limited to this, and for example, one end of the crease line L1 is cut. It may be connected to one end of the recess 16 and the other end of the fold line L1 may be connected to the intermediate point of the notch 16. Alternatively, both ends of the crease line L1 may be connected to two intermediate points of the cut portion 16, respectively.

また、本実施形態においては、図１及び図３においてＪ字型の切込部１７を説明したが、切込部１７の形状はＪ字型に限らず、例えば、Ｌ字型、コ字型、Ｈ字型であってもよい。 Further, in the present embodiment, the J-shaped cut portion 17 has been described with reference to FIGS. 1 and 3, but the shape of the cut portion 17 is not limited to the J-shape, and is, for example, an L-shape or a U-shape. , H-shaped.

この切込部１７は、天面内フラップ３又は底面内フラップ１９の先端又は左端又は右端まで伸びていてもよく、折目線Ｌ９又は折目線Ｌ１６を介して内側へ遥動させて内側中折部８が折り曲げ可能であればよい。このとき、折目線Ｌ９、折目線Ｌ１６の一端は、切込部１７の一端または切込部１７の中間地点のいずれかに位置させてもよい。 The cut portion 17 may extend to the tip, left end, or right end of the top surface inner flap 3 or the bottom surface inner flap 19, and is moved inward through the crease line L9 or the crease line L16 to move the inner middle fold portion. It suffices if 8 is bendable. At this time, one end of the crease line L9 and the crease line L16 may be located at either one end of the cut portion 17 or an intermediate point of the cut portion 17.

また、本実施形態の包装箱１では、天面および底面の何れにも外側中折部９及び内側中折部８を設けたものを説明したが、外側中折部９及び内側中折部８は、天面と底面の少なくとも一方に設けられていればよく、また、底面の取手部は１つであってもよい。 Further, in the packaging box 1 of the present embodiment, the outer middle fold portion 9 and the inner middle fold portion 8 are provided on both the top surface and the bottom surface, but the outer middle fold portion 9 and the inner middle fold portion 8 are provided. May be provided on at least one of the top surface and the bottom surface, and may have one handle on the bottom surface.

また、本実施形態においては、外側中折部９が第１分割片６と第２分割片７の２つの分割片で構成されるものを説明したが、本発明の外側中折部はこれに限らず、例えば、分割片を設けず１枚フラップの外側中折部としてもよいし、３つ以上の分割片を備える外側中折部としてもよい。 Further, in the present embodiment, the outer middle fold portion 9 is composed of two divided pieces, the first divided piece 6 and the second divided piece 7, but the outer middle fold portion of the present invention includes this. The present invention is not limited to this, and for example, the outer middle fold portion of one flap may be provided without the divided pieces, or the outer middle fold portion may be provided with three or more divided pieces.

また、本実施形態においては、底面に前後方向に間隔を存して２つの外側中折部９が形成したものを説明したが、底面の外側中折部は前後方向に間隔を存するものに限らず、例えば、左右方向に間隔を存していてもよい。これによっても、包装箱を傾けて内袋から内容物を注出させるときに、使用者は持ち易い方の底面の外側中折部の位置を選択することができるという作用効果を奏する。 Further, in the present embodiment, the two outer middle folds 9 formed on the bottom surface with an interval in the front-rear direction have been described, but the outer middle folds 9 on the bottom surface are limited to those having an interval in the front-rear direction. Instead, for example, there may be an interval in the left-right direction. This also has the effect that when the packaging box is tilted to eject the contents from the inner bag, the user can select the position of the outer middle fold portion of the bottom surface that is easier to hold.

１包装箱
２胴部
２ａ天面側の開口端縁
２ｂ底面側の開口端縁
３天面内フラップ
４天面外フラップ
５注出口用破断部
６第１分割片
６ａ先端
６ｂ基端
７第２分割片
７ｃ表面（外面）
７ｄ裏面（内面）
８内側中折部
８ａ先端
８ｂ基端
８ｃ表面（外面）
８ｄ裏面（内面）
８ｅ半体
９外側中折部
１０段ボール板紙
１１右側板
１２前板
１３左側板
１４後板
１５接着片
１６切込部
１６ａ接続部
１７切込部
１８切欠部
１９底面内フラップ
２０底面外フラップ
Ｌ１〜Ｌ１６折目線 1 Packaging box 2 Body 2a Top side open end edge 2b Bottom side open end edge 3 Top surface inner flap 4 Top surface outer flap 5 Breaking part for spout 6 1st division piece 6a Tip 6b Base end 7 2nd Divided piece 7c surface (outer surface)
7d back side (inner side)
8 Inner middle fold 8a Tip 8b Base end 8c Surface (outer surface)
8d back side (inner side)
8e Semifield 9 Outer center fold 10 Corrugated cardboard 11 Right side plate 12 Front plate 13 Left side plate 14 Rear plate 15 Adhesive piece 16 Notch 16a Connection 17 Notch 18 Notch 19 Bottom flap 20 Bottom outer flap L1 L16 crease line

Claims

Cylindrical body and
An inner flap provided on the end edge of the opening of the body by being bent inside the body,
An outer flap that is an open edge of the body and is bent inward of the body so as to overlap the inner flap.
An outer middle fold portion formed inside the notch portion by a notch portion provided in the outer flap and folded inward by moving the tip far away.
The inner flap is provided with an inner middle fold portion which is located at a portion corresponding to the outer middle fold portion and is folded inward by moving the tip far away.
The outer middle fold portion and the inner middle fold portion are in a state before the outer middle fold portion and the inner middle fold portion are folded inward, respectively, in the direction of the tip toward the tip from the base end of the outer middle fold portion. And the direction from the tip of the inner middle fold portion to the proximal end are arranged so as to be the same and parallel to the proximal direction.
The outer middle fold portion is composed of a plurality of divided pieces connected through a crease line parallel to the base end edge of the outer middle fold portion, and the divided pieces on the tip side folded inward. A packaging box characterized in that the outer surface is in contact with the outer surface of the inner flap.

The packaging box according to claim 1.
A packaging box characterized in that the notch provided in the outer flap is U-shaped.

The packaging box according to any one of claims 1 to 2.
The packaging box is a bag-in-box type packaging box that houses an inner bag having a spout and has a top surface and a bottom surface.
The top surface is composed of the inner flap and the outer flap.
On the top surface, a spout corresponding portion for projecting the spout is provided.
Tilt the packaging box so that the side from which the contents of the inner bag are poured out from the spout is the front.
The outer middle fold portion and the inner middle fold portion are arranged at the rear opposite to the front with respect to the spout corresponding portion.
A packaging box characterized in that the base end of the inner middle fold portion is located in front of the tip end.

The packaging box according to any one of claims 1 to 3.
The packaging box is a bag-in-box type packaging box that houses an inner bag having a spout and has a top surface and a bottom surface.
The bottom surface is composed of the inner flap and the outer flap.
On the top surface, a spout corresponding portion for projecting the spout is provided.
The side in which the contents of the inner bag are poured out from the spout by tilting the packaging box is the front, and the direction opposite to the front is the rear.
A plurality of the outer middle fold portion and the inner middle fold portion are provided on the bottom surface.
A packaging box characterized in that the tip of the inner middle fold portion is located on the rear side and the base end of the inner middle fold portion is located on the front side.

The packaging box according to any one of claims 1 to 4.
A packaging box characterized in that the outer middle fold portion is formed on the outer flap by the notch portion provided with a connecting portion.