JP6523648B2

JP6523648B2 - Packaging box

Info

Publication number: JP6523648B2
Application number: JP2014210066A
Authority: JP
Inventors: 松岡　建之; 建之松岡; 田中　明子; 明子田中; 沙央莉門田; 麻美小林; 朋子原田; 晶博坪田
Original assignee: Coca Cola Co
Current assignee: Coca Cola Co
Priority date: 2014-10-14
Filing date: 2014-10-14
Publication date: 2019-06-05
Anticipated expiration: 2034-10-14
Also published as: JP2016078871A

Description

本発明は、開封作業性を向上した包装箱に関する。 BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a packaging box with an improved opening workability.

特許文献１には、各一対の端壁および側壁を有する外周壁を備え、この外周壁の開口端に内フラップおよび外フラップを連設した包装箱が記載されている。一対の内フラップは、封緘状態で互いの先端間に所定の隙間が形成される寸法で形成されている。一対の外フラップは、封緘状態で互いの先端が突き合う寸法で形成されている。各フラップによって外周壁の開口端を封緘する際には、端壁に対して内フラップを内向きに折り曲げた後、側壁に対して外フラップを内向きに折り曲げる。そして、外フラップの破断線の外側に熱溶融樹脂を塗布し、外フラップと内フラップとを貼着（ホットメルト）する。 Patent Document 1 describes a packaging box provided with an outer peripheral wall having a pair of end walls and side walls, and an inner flap and an outer flap connected to the open end of the outer peripheral wall. The pair of inner flaps is formed in a dimension such that a predetermined gap is formed between the tips of each other in a sealed state. The pair of outer flaps are formed in such a dimension that the tips of the outer flaps face each other in a sealed state. When the open end of the outer peripheral wall is sealed by each flap, the inner flap is bent inward with respect to the end wall, and then the outer flap is bent inward with respect to the side wall. Then, a heat melting resin is applied to the outside of the break line of the outer flap, and the outer flap and the inner flap are attached (hot melt).

外フラップの先端中央には、開封操作をするための開封操作部が形成されている。この開封操作部は、外フラップの先端縁に対して平行に延びる折曲線と、この折曲線の両端から先端縁に向けて延びる切断線とを備える。また、外フラップには、開封操作部の両側に位置するように、先端縁から側壁に連続した基端側両端に向けて延びる一対の破断線（片ジッパー）が設けられている。包装箱を開封する際には、外フラップの先端中央の開封操作部に指を差し込んで開口部を設け、外フラップの内面側を持って外向きに操作する。これにより、外フラップと内フラップとを貼着したホットメルトを剥がすことなく、破断線に沿って外フラップを破断し、包装箱を開封する。 At the center of the tip of the outer flap, an opening operation portion for opening operation is formed. The unsealing portion comprises a fold line extending parallel to the leading edge of the outer flap, and a cutting line extending from both ends of the fold toward the leading edge. Further, the outer flaps are provided with a pair of breaking lines (one-side zippers) extending from the leading edge toward the both ends on the proximal end side so as to be located on both sides of the unsealing operation part. When opening the packaging box, a finger is inserted into the opening operation portion at the center of the tip of the outer flap to provide an opening, and the outer flap is operated outward by holding the inner surface side of the outer flap. Thereby, the outer flap is broken along the breaking line and the packaging box is opened, without peeling off the hot melt having the outer flap and the inner flap attached.

しかしながら、この種の包装箱は、商品を輸送する物流時や商品の保管時に、積み重ねた状態に積層配置されることが多い。この際、下段の包装箱の開封操作部に上段の包装箱の荷重（負荷）が加わると、開封操作部が開口したり、破れてしまうという問題がある。この場合、包装箱の表面に施した印刷の視認性が損なわれるため好ましくない。 However, packaging boxes of this type are often stacked and arranged in a stacked state at the time of distribution for transporting goods or at the time of storage of goods. Under the present circumstances, when the load (load) of the packaging box of an upper stage is added to the opening operation part of the packaging box of a lower stage, there exists a problem that an opening operation part will open or it will tear. In this case, it is not preferable because the visibility of the printing applied to the surface of the packaging box is impaired.

特開平１０−３２４３２７号公報JP 10-324327 A

本発明は、積み重ねにより開封操作部が開口したり、破れたりすることを抑制乃至防止できる包装箱を提供することを課題とする。 An object of the present invention is to provide a packaging box capable of suppressing or preventing opening and tearing of the opening operation part by stacking.

前記課題を解決するため、本発明の包装箱は、外周壁の開口端の対向縁に内フラップをそれぞれ連設するとともに、前記対向縁と交差する前記開口端の縁に前記内フラップの外側に配置される外フラップを連設し、これらフラップを固着して前記開口端を封緘する包装箱において、前記内フラップが位置する前記外フラップの両側のうちの片側だけに、前記内フラップと重った重畳領域から前記内フラップと離れた非重畳領域にかけて延びる破断線と、前記破断線の一端から前記外フラップの先端に向けて延びるように前記非重畳領域に設けた折曲線とを有する開封操作部と、前記外フラップの先端側から前記外周壁に連続した前記外フラップの基端側に向けて延び、前記内フラップと前記外フラップを固着した固着部側と前記開封操作部側とに破断する外フラップ破断部とを設けている。 In order to solve the above problems, the packaging box of the present invention has inner flaps connected respectively to opposing edges of the open end of the outer peripheral wall, and on the outer edge of the inner flap at the edge of the open end intersecting the opposite edge. In the packaging box in which the outer flaps to be arranged are connected and the flaps are fixed to seal the open end, the inner flap is overlapped with the inner flap only on one side of the outer flap on which the inner flap is positioned. An unsealing operation having a breaking line extending from the overlapping area to the non-overlapping area separated from the inner flap, and a bending curve provided in the non-overlapping area to extend from one end of the breaking line toward the tip of the outer flap parts and the outer from the distal end side of the flap extending toward the base end side of the outer flaps are continuous in the peripheral wall, the inner flap and the unsealing operation unit side was a fixed portion secured to said outer flap It is provided with an outer flap rupture portion that ruptured.

具体的には、対向配置された第１および第２端壁と、前記各端壁に隣接して対向配置された第１および第２側壁と、前記各端壁の開口端に連設された第１および第２内フラップと、前記各側壁の開口端に連設された第１および第２外フラップとを備え、前記各内フラップと前記各外フラップとを固着して前記開口端を封緘する包装箱において、前記第１外フラップに、前記第１内フラップと重った重畳領域および前記第１内フラップから離れた非重畳領域にかけて延びる破断線と、前記破断線の一端に連続するように前記非重畳領域に設けた折曲線とを有する開封操作部と、先端側から前記第１側壁に連続した基端側に向けて延び、前記第１内フラップと前記第１外フラップを固着した固着部側と前記開封操作部側とを破断する外フラップ破断部とを設けている。更に具体的には、開封操作部および外フラップ破断部は、第１外フラップの第２内フラップ側には設けず、第１外フラップの第１内フラップ側だけに設け、切断部分を最小限に抑えることにより、包装箱の表面に施される印刷の視認性が損なわれることを防止することが好ましい。 Specifically, the first and second end walls disposed to face each other, the first and second side walls disposed to face each other adjacent to the respective end walls, and the open end of each of the end walls are continuously provided. First and second inner flaps and first and second outer flaps connected to the open end of each side wall, the inner flap and the outer flap being fixed to seal the open end The first outer flap, a break line extending over the overlapping area overlapping the first inner flap and a non-overlapping area away from the first inner flap, and continuous with one end of the break line Extends from the distal end side toward the proximal end side continuous with the first side wall from the distal end side, and fixes the first inner flap and the first outer flap Outer flap breakage to break the fixed part side and the opening operation part side And the part is provided. More specifically, the opening operation portion and the outer flap breaking portion are not provided on the second inner flap side of the first outer flap, but provided only on the first inner flap side of the first outer flap, and the cut portion is minimized. It is preferable to prevent that the visibility of the printing given to the surface of a packaging box is impaired by suppressing to.

この包装箱の外フラップには、開封操作部を形成するための破断線が、内フラップとの重畳領域および非重畳領域にかけて延びるように設けられている。よって、開封操作部の一部が内フラップ上に位置するため、開封操作部を内向きに押圧するように外力が加わると、内フラップが開封操作部の内向きの変形を阻止する。そのため、物流時や保管時に、包装箱を積み重ねた状態に積層配置しても、破断線が破断して開封操作部が開口することを抑制できる。その結果、外フラップに施した印刷の視認性が損なわれることを防止できる。 The outer flap of the packaging box is provided with a break line for forming the unsealing operation portion so as to extend over the overlapping region and the non-overlapping region with the inner flap. Therefore, since a part of the unsealing operation part is located on the inner flap, when an external force is applied to press the unsealing operation part inward, the inner flap prevents the inward deformation of the unsealing operation part. Therefore, even if the packaging boxes are stacked and arranged in a stacked state at the time of distribution or storage, it is possible to suppress the breakage line from being broken and the opening operation portion being opened. As a result, it is possible to prevent the visibility of the print applied to the outer flap from being impaired.

開封作業時には、開封操作部を内向きに押し込み、破断線に沿って外フラップを破断しながら、折曲線に沿って折り曲げる。これにより、内フラップに重畳した開封操作部の一部を変形させながら、開口部を形成する。その後、外フラップの内面側に指を引っ掛けて外向きに操作することにより、外フラップ破断部に沿って外フラップを破断し、外周壁の開口端を開封する。この際、作業者の手には、外フラップの縁や破断線による破断縁ではなく、折曲線に沿った折曲縁が当たるため、作業者の手に痛みを感じさせることはない。 At the time of the opening operation, the opening operation portion is pushed inward, and the outer flap is broken along the break line while being folded along the folding line. Thereby, an opening part is formed, deform | transforming a part of opening operation part superimposed on the inner flap. Thereafter, the outer flap is broken along the outer flap break portion by opening the finger by hooking the finger on the inner surface side of the outer flap, and the open end of the outer peripheral wall is opened. At this time, the hand of the worker does not feel pain in the hand of the worker because a bent edge along the folding line is hit instead of the edge of the outer flap or the broken edge due to the break line.

この包装箱では、前記開封操作部を前記外フラップの前記先端側に設け、前記外フラップ破断部を前記開封操作部から前記基端側に向けて延びるように設けることが好ましい。この場合、前記開封操作部の前記折曲線と、前記外フラップ破断部の少なくとも前記先端側とを、直線上に位置するように設けることが更に好ましい。このように開封操作部に外フラップ破断部が連続する構成とすれば、開封作業性を向上できる。 This packaging box, provided with the opening operation portion to the distal end side of the outer flap, the outer flap rupture portion preferably the provision so as to extend toward the proximal side from the unsealing operation unit. In this case, with the fold line of the opening operation portion, and at least the distal end side of the outer flap fracture portion, it is further preferably provided so as to be located on a straight line. As described above, when the outer flap broken portion is continuous with the unsealing operation portion, the unsealing workability can be improved.

前記外フラップ破断部は、少なくとも前記基端側が前記重畳領域に位置するように形成され、前記内フラップと前記外フラップとは、前記外フラップ破断部より前記外フラップの前記先端側で固着される。このようにすれば、包装箱を積層配置した際に、外フラップ破断部に負荷が加わって破れることを抑制できる。 The outer flap rupture portion is formed so that at least the proximal side is positioned in the overlapping region, and the outer flaps and the inner flaps is secured at the distal end of the outer flap from said outer flap breaks . In this way, when the packaging boxes are stacked and arranged, it is possible to suppress a load from being applied to the outer flap broken portion and torn.

本発明の包装箱では、開封操作部の一部が内フラップ上に位置するため、外力により開封操作部が内向きに変形することを阻止し、物流時や保管時に開封操作部が開口することを抑制できる。よって、外フラップの表面に施した印刷の視認性が損なわれることを防止できる。また、開封時に作業者の手には、外フラップの縁や破断線による破断縁ではなく、開封操作部の折曲線に沿った折曲縁が当たるため、作業者の手に痛みを感じさせることはない。 In the packaging box of the present invention, a part of the unsealing operation part is located on the inner flap, so that the unsealing operation part is prevented from being deformed inward by external force, and the unsealing operation part opens during physical distribution or storage. Can be suppressed. Therefore, it can prevent that the visibility of the printing given to the surface of an outer flap is impaired. In addition, the operator's hand may feel pain in the operator's hand because the operator's hand is not in contact with the edge of the outer flap or the broken edge due to the break line but the bent edge along the folding line of the unsealing part. There is no.

第１実施形態の包装箱の斜視図。The perspective view of the packaging box of 1st Embodiment. 第１実施形態の包装箱の平面図。The top view of the packaging box of 1st Embodiment. 開封時の第１工程を示す斜視図。The perspective view which shows the 1st process at the time of opening. 開封時の第２工程を示す斜視図。The perspective view which shows the 2nd process at the time of opening. 開封時の第３工程を示す斜視図。The perspective view which shows the 3rd process at the time of opening. 第１実施形態の包装箱のブランクを示す平面図。The top view which shows the blank of the packaging box of 1st Embodiment. 第２実施形態の包装箱の平面図。The top view of the packaging box of 2nd Embodiment. 第３実施形態の包装箱の平面図。The top view of the packaging box of 3rd Embodiment. 第４実施形態の包装箱の平面図。The top view of the packaging box of 4th Embodiment. 第５実施形態の包装箱の平面図。The top view of the packaging box of 5th Embodiment.

以下、本発明の実施の形態を図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（第１実施形態）
図１は、本発明の第１実施形態に係る包装箱１０を示す。この包装箱１０は、各一対の端壁１１Ａ，１１Ｂおよび側壁１２Ａ，１２Ｂを有する外周壁と、外周壁の上側開口端に連設した上側内フラップ１８Ａ，１８Ｂおよび上側外フラップ１９Ａ，１９Ｂからなる上蓋壁と、外周壁の下側開口端に連設した下側内フラップ２１Ａ，２１Ｂおよび下側外フラップ２２Ａ，２２Ｂからなる下蓋壁（図６参照）とを備える。本発明の包装箱１０には、開封作業性を向上するために、各上側外フラップ１９Ａ，１９Ｂの一方の上側内フラップ１８Ａ，１８Ｂに偏った位置に、開封操作部２４と外フラップ破断部２９とがそれぞれ設けられている。 First Embodiment
FIG. 1 shows a packaging box 10 according to a first embodiment of the present invention. The packaging box 10 includes an outer peripheral wall having a pair of end walls 11A and 11B and side walls 12A and 12B, and upper inner flaps 18A and 18B and upper outer flaps 19A and 19B connected to the upper opening end of the outer peripheral wall. The upper cover wall and the lower cover wall (see FIG. 6) including lower inner flaps 21A and 21B and lower outer flaps 22A and 22B connected to the lower open end of the outer peripheral wall are provided. In the packaging box 10 of the present invention, in order to improve the unsealing workability, the unsealing operation portion 24 and the outer flap broken portion 29 are disposed at a position biased to the upper inner flaps 18A, 18B of the upper outer flaps 19A, 19B. And are provided respectively.

包装箱１０は、紙製の段ボールシートを周知の紙器打抜装置によって、図６に示す一枚のブランクとして打ち抜いて形成される。段ボールシートは、表ライナおよび裏ライナの間に波状の中しんを配設した構成である。以下の説明では、必要に応じて特定の方向や位置を示す用語（例えば、「上」、「下」、「側」、「端」、「天」、「底」を含む用語）を用いるが、それらの用語の使用は図面を参照した発明の理解を容易にするためであって、それらの用語の意味によって本発明の技術的範囲が限定されるものではない。 The packaging box 10 is formed by punching a cardboard sheet made of paper as a single blank shown in FIG. 6 by a well-known carton punching device. The corrugated cardboard sheet has a configuration in which a corrugated centerline is disposed between the front liner and the back liner. In the following description, terms that indicate a specific direction or position (for example, terms including "upper", "lower", "side", "end", "heaven", "bottom") are used as needed. The use of these terms is to facilitate the understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of these terms.

図６に示すように、包装箱１０のブランクは、外周壁を構成する端壁１１Ａ，１１Ｂと側壁１２Ａ，１２Ｂとが横方向に連続するように設けられている。これらは長方形状に形成され、左側から側壁（第１側壁）１２Ａ、端壁（第２端壁）１１Ａ、側壁（第２側壁）１２Ｂおよび端壁（第１端壁）１１Ｂの順番で連設されている。封緘状態で、端壁１１Ａ，１１Ｂは互いに対向配置され、側壁１２Ａ，１２Ｂは端壁１１Ａ，１１Ｂに隣接して対向配置される。左側端部に位置する側壁１２Ａには、右側端部に位置する端壁１１Ｂの縁に貼着するための糊代壁１３が連設されている。これらの壁１１Ａ，１１Ｂ，１２Ａ，１２Ｂ，１３の各境界部分には、裏ライナの側から肉厚を圧縮するように罫を入れて形成した汎用罫線からなる第１折曲線１４が設けられている。 As shown in FIG. 6, the blank of the packaging box 10 is provided so that the end walls 11A and 11B and the side walls 12A and 12B constituting the outer peripheral wall are continuous in the lateral direction. These are formed in a rectangular shape, and are arranged in order from the left side wall (first side wall) 12A, end wall (second end wall) 11A, side wall (second side wall) 12B and end wall (first end wall) 11B It is done. In the sealing state, the end walls 11A and 11B are disposed to face each other, and the side walls 12A and 12B are disposed adjacent to the end walls 11A and 11B. On the side wall 12A located at the left end, an adhesive margin wall 13 for adhering to the edge of the end wall 11B located at the right end is continuously provided. At each boundary of the walls 11A, 11B, 12A, 12B, 13 there is provided a first fold line 14 consisting of a general ruled line formed by scoring to compress the thickness from the back liner side There is.

ブランクの裏ライナ側には、糊代壁１３から端壁１１Ｂまでの横方向の両端間にかけて、樹脂（ポリプリピレン）製のカットテープ１５が配設されている。このカットテープ１５は、ブランクを打ち抜く前の段ボールシートに、段方向と直交する方向に延びるように貼着されている。側壁１２Ａ，１２Ｂの横方向の中央には、カットテープ１５上に位置するように破断操作部１６が設けられている。破断操作部１６は、カットテープ１５に沿って延びる一対の第１切断線１６ａ，１６ａと、第１切断線１６ａ，１６ａ間に位置する第２切断線１６ｂとを備える。これら切断線１６ａ，１６ｂは、裏ライナから表ライナにかけて刃を入れて形成される。切断線１６ａ，１６ｂ間に位置する摘まみ部を把持し、横向きに操作することにより、各壁１１Ａ，１１Ｂ，１２Ａ，１２Ｂ，１３を引き裂くように破断できる。 On the back liner side of the blank, a cut tape 15 made of resin (polypropylene) is disposed between both ends in the lateral direction from the glue margin wall 13 to the end wall 11B. The cut tape 15 is attached to the corrugated cardboard sheet before punching the blank so as to extend in the direction orthogonal to the row direction. At the center in the lateral direction of the side walls 12A and 12B, a breaking operation portion 16 is provided so as to be located on the cutting tape 15. The breaking operation unit 16 includes a pair of first cutting lines 16a and 16a extending along the cutting tape 15, and a second cutting line 16b located between the first cutting lines 16a and 16a. The cutting lines 16a and 16b are formed by inserting a blade from the back liner to the front liner. By grasping the knobs positioned between the cutting lines 16a and 16b and operating them laterally, the walls 11A, 11B, 12A, 12B and 13 can be broken so as to be torn.

また、端壁１１Ａ，１１Ｂの横方向中央には、持ち運び用の把持部１７が設けられている。この把持部１７は、略Ｕ字形状に設けられた第１切断線１７ａと、第１切断線１７ａの両端から上方内向きに延びる汎用罫線からなる折曲線１７ｂ，１７ｂと、これら折曲線１７ｂ，１７ｂの端部間に設けた第２切断線１７ｃと、切断線１７ａ，１７ｃにかけて縦方向に延びる第３切断線１７ｄとを備える。第１切断線１７ａには、所定位置に刃を入れていない非切断部が形成されている。切断線１７ａ，１７ｃ，１７ｄおよび折曲線１７ｂに囲繞された内部を内向きに押し込むことで、搬送用の把持穴が形成される。 Further, a grip portion 17 for carrying is provided at the lateral center of the end walls 11A and 11B. The grip portion 17 includes a first cutting line 17a provided in a substantially U-shape, bending lines 17b and 17b formed of general ruled lines extending upward and inward from both ends of the first cutting line 17a, and these bending lines 17b, A second cutting line 17c provided between the end portions of 17b and a third cutting line 17d extending in the longitudinal direction to the cutting lines 17a and 17c are provided. The first cutting line 17a is formed with a non-cutting portion in which a blade is not inserted at a predetermined position. By pushing the inside surrounded by the cutting lines 17a, 17c, 17d and the folding line 17b inward, a gripping hole for transfer is formed.

端壁１１Ａ，１１Ｂの上側縁には上側内フラップ１８Ａ，１８Ｂが連設され、側壁１２Ａ，１２Ｂの上側縁には上側外フラップ１９Ａ，１９Ｂが連設されている。これら上側フラップ１８Ａ，１８Ｂ，１９Ａ，１９Ｂと、各壁１１Ａ，１１Ｂ，１２Ａ，１２Ｂの境界部分には、汎用罫線からなる第２折曲線（開口端）２０が設けられている。また、端壁１１Ａ，１１Ｂの下側縁には下側内フラップ２１Ａ，２１Ｂが連設され、側壁１２Ａ，１２Ｂの下側縁には下側外フラップ２２Ａ，２２Ｂが連設されている。これら下側フラップ２１Ａ，２１Ｂ，２２Ａ，２２Ｂと、各壁１１Ａ，１１Ｂ，１２Ａ，１２Ｂの境界部分には、汎用罫線からなる第３折曲線２３が設けられている。 Upper inner flaps 18A, 18B are provided in a row at the upper edge of the end walls 11A, 11B, and upper outer flaps 19A, 19B are provided in a row at the upper edges of the side walls 12A, 12B. At the boundary between the upper flaps 18A, 18B, 19A, 19B and the walls 11A, 11B, 12A, 12B, a second fold line (open end) 20 comprising a general ruled line is provided. Also, lower inner flaps 21A, 21B are connected to the lower side edge of the end walls 11A, 11B, and lower outer flaps 22A, 22B are connected to the lower side edge of the side walls 12A, 12B. At the boundary between the lower flaps 21A, 21B, 22A, 22B and the walls 11A, 11B, 12A, 12B, a third fold line 23 consisting of a general ruled line is provided.

各内フラップ１８Ａ，１８Ｂ，２１Ａ，２１Ｂは、封緘状態で互いの先端間に所定の隙間が形成される寸法で形成されている。各外フラップ１９Ａ，１９Ｂ，２２Ａ，２２Ｂは、封緘状態で対向する外フラップ１９Ｂ，１９Ａ，２２Ｂ，２２Ａの先端と突き合う寸法で形成されている。そして、本実施形態では、各内フラップ１８Ａ，１８Ｂ，２１Ａ，２１Ｂと、各外フラップ１９Ａ，１９Ｂ，２２Ａ，２２Ｂとを、全て同一寸法で縦方向の突出する長方形状に形成されている。 Each of the inner flaps 18A, 18B, 21A, 21B is formed in a dimension such that a predetermined gap is formed between the tips of the inner flaps 18A, 18B, 21A, 21B in a sealed state. Each of the outer flaps 19A, 19B, 22A, 22B is formed in such a dimension as to abut on the tip of the opposing outer flap 19B, 19A, 22B, 22A in a sealed state. And in this embodiment, each inner flap 18A, 18B, 21A, 21B and each outer flap 19A, 19B, 22A, 22B are formed in the rectangular shape which all protrudes in the same dimension by the same dimension.

図２に示すように、封緘時には、端壁１１Ａ，１１Ｂに対して内フラップ１８Ａ，１８Ｂ，２１Ａ，２１Ｂを内向きに折り曲げた後、側壁１２Ａ，１２Ｂに対して外フラップ１９Ａ，１９Ｂ，２２Ａ，２２Ｂを折り曲げる。そして、図２に薄墨を付して示すように、内フラップ１８Ａ，１８Ｂ，２１Ａ，２１Ｂと外フラップ１９Ａ，１９Ｂ，２２Ａ，２２Ｂとが重なった重畳領域Ｒ１〜Ｒ４に、熱溶融樹脂等の接着剤を塗布して貼着（固着）することにより、包装箱１０の開口端が封緘される。 As shown in FIG. 2, at the time of sealing, the inner flaps 18A, 18B, 21A, 21B are bent inward with respect to the end walls 11A, 11B, and then the outer flaps 19A, 19B, 22A, Bend 22B. Then, as shown in FIG. 2 with thin ink, bonding of a heat melting resin or the like is performed to the overlapping regions R1 to R4 in which the inner flaps 18A, 18B, 21A, 21B and the outer flaps 19A, 19B, 22A, 22B overlap. By applying and sticking (fixing) the agent, the open end of the packaging box 10 is sealed.

図２および図６に示すように、上側外フラップ１９Ａ，１９Ｂには、開封操作用の開口部３３を形成するための開封操作部２４と、上側外フラップ１９Ａ，１９Ｂを破断するための外フラップ破断部２９とがそれぞれ設けられている。これら開封操作部２４および外フラップ破断部２９は、上側外フラップ（第１外フラップ）１９Ａには封緘状態で隣接する上側内フラップ（第１内フラップ）１８Ｂ側に設けられ、上側外フラップ（第２外フラップ）１９Ｂには封緘状態で隣接する上側内フラップ（第２内フラップ）１８Ａ側に設けられている。即ち、上側フラップ１８Ａ，１８Ｂ，１９Ａ，１９Ｂの封緘により形成される４箇所の重畳領域Ｒ１〜Ｒ４のうち、２箇所の重畳領域Ｒ１，Ｒ３側に設けられ、残り２箇所の重畳領域Ｒ２，Ｒ４側には設けられていない。 As shown in FIGS. 2 and 6, the upper outer flaps 19A and 19B include an opening operation portion 24 for forming an opening 33 for opening operation and an outer flap for breaking the upper outer flaps 19A and 19B. The fractured portions 29 are provided respectively. The opening operation portion 24 and the outer flap breaking portion 29 are provided on the upper inner flap (first inner flap) 18B side adjacent to the upper outer flap (first outer flap) 19A in a sealed state, and the upper outer flap (first 2) The outer flaps 19B are provided on the side of the upper inner flaps (second inner flaps) 18A adjacent to the outer flaps 19B in a sealed state. That is, of the four overlapping areas R1 to R4 formed by sealing the upper flaps 18A, 18B, 19A and 19B, two overlapping areas R1 and R3 are provided, and the remaining two overlapping areas R2 and R4 are provided. It is not provided on the side.

開封操作部２４は、上側外フラップ１９Ａ，１９Ｂの先端側において、上側フラップ１８Ａ，１８Ｂ，１９Ａ，１９Ｂの重畳領域Ｒ１，Ｒ３、および、上側内フラップ１８Ａ，１８Ｂの先端間である非重畳領域ｒ１，ｒ２に跨がって形成されている。この開封操作部２４は、重畳領域Ｒ１，Ｒ３および非重畳領域ｒ１，ｒ２にかけて延びる破断線２５と、破断線２５の端部（一端）２５ｂから非重畳領域ｒ１，ｒ２内に延びる折曲線２８とを備える。上側外フラップ１９Ａ，１９Ｂの先端縁と破断線２５と折曲線２８とで、開口部３３を形成するための開封操作部２４が画定される。 The unsealing operation unit 24 is a non-overlapping region r1 between the tips of the overlapping regions R1, R3 of the upper flaps 18A, 18B, 19A, 19B and the tips of the upper inner flaps 18A, 18B on the tip side of the upper outer flaps 19A, 19B. , R2 are formed. The unsealing operation unit 24 has a breaking line 25 extending to the overlapping regions R1 and R3 and the non-overlapping regions r1 and r2, and a bending curve 28 extending from the end (one end) 25b of the breaking line 25 into the non-overlapping regions r1 and r2 Equipped with The leading edge of the upper outer flaps 19A, 19B, the breaking line 25 and the folding line 28 define an opening operating portion 24 for forming the opening 33.

破断線２５は、非重畳領域ｒ１，ｒ２から重畳領域Ｒ１，Ｒ３に延び、重畳領域Ｒ１，Ｒ３内で旋回して再び非重畳領域ｒ１，ｒ２に延びる略Ｃ字形状に形成されている。この破断線２５は、裏ライナから表ライナにかけて刃を入れて形成した切断部２６と、刃を入れていない非切断部２７とを備える。上側外フラップ１９Ａ，１９Ｂの先端側に位置する端部２５ａは、上側外フラップ１９Ａ，１９Ｂの先端縁に向けて湾曲する曲線状に形成されている。側壁１２Ａ，１２Ｂと連続する上側外フラップ１９Ａ，１９Ｂの基端側に位置する端部２５ｂは、上側外フラップ１９Ａ，１９Ｂの横方向中央に向けて延びる直線状に形成されている。 The break line 25 extends from the non-overlapping regions r1 and r2 to the overlapping regions R1 and R3 and is formed in a substantially C shape which turns in the overlapping regions R1 and R3 and extends again to the non-overlapping regions r1 and r2. The breaking line 25 includes a cutting portion 26 formed by inserting a blade from the back liner to the front liner, and a non-cutting portion 27 without the blade. The end 25a located on the front end side of the upper outer flaps 19A and 19B is formed in a curved shape that curves toward the front end edge of the upper outer flaps 19A and 19B. The end 25b located on the base end side of the upper outer flaps 19A, 19B continuous with the side walls 12A, 12B is formed in a straight line extending toward the lateral center of the upper outer flaps 19A, 19B.

折曲線２８は、非重畳領域ｒ１，ｒ２内において、上側外フラップ１９Ａ，１９Ｂの基端側外方から先端側内方に向けて延びる直線状の汎用罫線である。この折曲線２８は、封緘状態で破断線２５に対して上側内フラップ１８Ａ，１８Ｂと逆側に位置するように設けられている。具体的には、折曲線２８は、上側外フラップ１９Ａ，１９Ｂの基端側に位置する破断線２５の端部２５ｂに連続し、上側外フラップ１９Ａ，１９Ｂの先端縁中央側に向けて、４５度の傾斜角度で延びる。 The folding line 28 is a general-purpose straight ruled line extending from the outer side of the proximal end side of the upper outer flaps 19A and 19B toward the distal end side in the non-overlapping regions r1 and r2. The folding line 28 is provided on the opposite side of the upper inner flaps 18A and 18B with respect to the breaking line 25 in the sealing state. Specifically, the fold line 28 is continuous with the end 25b of the break line 25 located on the proximal side of the upper outer flaps 19A, 19B, and is directed toward the center of the tip edge of the upper outer flaps 19A, 19B. Extends at an inclination angle of

外フラップ破断部２９は、上側フラップ１８Ａ，１８Ｂ，１９Ａ，１９Ｂを貼着した貼着部（固着部）３２より非重畳領域ｒ１，ｒ２側において、上側外フラップ１９Ａ，１９Ｂの先端側から基端側に向けて延び、上側外フラップ１９Ａ，１９Ｂを貼着部３２側と非重畳領域ｒ１，ｒ２側とに分断する。本実施形態では、開封操作部２４の折曲線２８と直線上に位置するように、破断線２５の端部２５ｂから基端側外方に向けて延びるように形成される。この外フラップ破断部２９は、折曲線２８の延び方向に沿ってミシン目状に延びる複数の切断線３０と、各切断線３０の先端縁側端部から横方向内向きに延びるガイド用切断線３１とを備える片ジッパーにより構成される。このガイド用切断線３１による幅を含めた外フラップ破断部２９が、折曲線２８に対して直線上に位置する。開封操作部２４側（先端側）の端部は非重畳領域ｒ１，ｒ２に位置し、基端側は重畳領域Ｒ１，Ｒ３に位置する。 The outer flap fracture portion 29 is a proximal end from the tip side of the upper outer flaps 19A, 19B on the non-overlapping region r1, r2 side from the adhesive portion (fixed portion) 32 to which the upper flaps 18A, 18B, 19A, 19B are attached. Extending to the side, the upper outer flaps 19A and 19B are divided into the adhesive portion 32 side and the non-overlapping regions r1 and r2 side. In this embodiment, it is formed so as to extend outward from the end 25 b of the breaking line 25 to the proximal end side so as to be located on a straight line with the bending curve 28 of the unsealing operation part 24. The outer flap breaking portion 29 has a plurality of cutting lines 30 extending in a perforation shape along the extension direction of the folding line 28 and a guiding cutting line 31 extending inward in the lateral direction from the end edge side end of each cutting line 30. And one-piece zipper comprising. An outer flap break portion 29 including the width of the guide cutting line 31 is positioned on a straight line with respect to the fold line 28. The end on the unsealing operation unit 24 side (distal end side) is located in the non-overlapping areas r1 and r2, and the base end is located in the overlapping areas R1 and R3.

なお、包装箱１０には、表面側である表ライナに、収容する商品に関する印刷（図示せず）が施されている。この印刷は、カットテープ１５と同様に、ブランクを打ち抜く前の段ボールシートの状態で施される。そのため、印刷には、開封操作部２４および外フラップ破断部２９を構成する切断部２６および切断線３０，３１によるラインが現れる。しかし、本実施形態では、開封操作部２４および外フラップ破断部２９を上側外フラップ１９Ａ，１９Ｂの一端側だけに設けている。そのため、天面に形成される切断ラインを最小限に抑えることができ、印刷の視認性が損なわれることを抑制できる。 In the packaging box 10, printing (not shown) regarding the goods to be stored is applied to the front liner which is the front side. This printing, like the cut tape 15, is applied in the form of a corrugated cardboard sheet before punching out the blank. Therefore, in printing, the line by the cutting part 26 which comprises the opening operation part 24 and the outer flap fracture part 29, and the cutting lines 30, 31 appears. However, in the present embodiment, the unsealing operation portion 24 and the outer flap breaking portion 29 are provided only on one end side of the upper outer flaps 19A, 19B. Therefore, the cutting line formed on the top surface can be minimized, and loss of print visibility can be suppressed.

この包装箱１０は、端壁１１Ａに対して側壁１２Ａを折り曲げるとともに、側壁１２Ｂに対して端壁１１Ｂを折り曲げ、重畳する糊代壁１３と端壁１１Ｂとを例えば酢酸ビニルエマルジョン系の接着剤で貼着する。この折り重ねた状態で所定の商品を製造する製造メーカに出荷される。 In the packaging box 10, the side wall 12A is bent with respect to the end wall 11A, and the end wall 11B is bent with respect to the side wall 12B. Stick it. The folded product is shipped to a manufacturer that manufactures a predetermined product.

製造メーカでは、折り重ねられた端壁１１Ａ，１１Ｂおよび側壁１２Ａ，１２Ｂを平面視長方形状に開く。そして、下側内フラップ２１Ａ，２１Ｂを内向きに折り曲げた後、下側外フラップ２２Ａ，２２Ｂを内向きに折り曲げ、これらの重畳領域を熱溶融樹脂により貼着する。ついで、上側開口端から包装箱１０内に商品を収容させる。その後、上側内フラップ１８Ａ，１８Ｂを内向きに折り曲げた後、上側外フラップ１９Ａ，１９Ｂを内向きに折り曲げ、これらの重畳領域Ｒ１〜Ｒ４を熱溶融樹脂により貼着する。この際、重畳領域Ｒ１，Ｒ３については、上側外フラップ１９Ａ，１９Ｂの外フラップ破断部２９より先端側に熱溶融樹脂を塗布して、上側内フラップ１８Ａ，１８Ｂと上側外フラップ１９Ａ，１９Ｂとを貼着する。 In the manufacturer, the folded end walls 11A and 11B and the side walls 12A and 12B are opened in a rectangular shape in plan view. Then, after the lower inner flaps 21A and 21B are bent inward, the lower outer flaps 22A and 22B are bent inward, and the overlapping region of these is adhered by a heat melting resin. Then, the goods are accommodated in the packaging box 10 from the upper open end. Thereafter, the upper inner flaps 18A and 18B are bent inward, and then the upper outer flaps 19A and 19B are bent inward, and the overlapping regions R1 to R4 are adhered by the heat melting resin. At this time, in the overlapping regions R1 and R3, a heat melting resin is applied to the tip end side of the upper outer flaps 19A and 19B from the outer flap fracture portion 29 to form the upper inner flaps 18A and 18B and the upper outer flaps 19A and 19B. Stick it.

この封緘状態の包装箱１０は、図１および図２に示すように、上側外フラップ１９Ａ，１９Ｂに形成する開封操作部２４の破断線２５が、上側内フラップ１８Ａ，１８Ｂとの重畳領域Ｒ１，Ｒ３および非重畳領域ｒ１，ｒ２にかけて延びるように設けられている。よって、開封操作部２４の一部が上側内フラップ１８Ａ，１８Ｂ上に位置するため、開封操作部２４を内向きに押圧するように外力が加わると、上側内フラップ１８Ａ，１８Ｂが開封操作部２４の内向きの変形を阻止する。そのため、商品を輸送する物流時や販売店での保管時に、包装箱１０を積み重ねた状態に積層配置しても、破断線２５が破断して開封操作部２４が開口（破れる）することを抑制乃至防止できる。また、外フラップ破断部２９も実質的に重畳領域Ｒ１，Ｒ３に設けられているため、積層配置しても破れることはない。その結果、上側外フラップ１９Ａ，１９Ｂに施した印刷の視認性が損なわれることを防止できる。しかも、開封操作部２４および外フラップ破断部２９を上側外フラップ１９Ａ，１９Ｂの一端側だけに設けているため、剛性（耐圧強度）の低下を抑制できる。 In the packaging box 10 in the sealed state, as shown in FIGS. 1 and 2, the broken line 25 of the unsealing operation part 24 formed on the upper outer flaps 19A, 19B is the overlapping region R1,1 with the upper inner flaps 18A, 18B. It is provided to extend over R3 and the non-overlapping regions r1 and r2. Therefore, since a part of the unsealing operation part 24 is positioned on the upper inner flaps 18A and 18B, when an external force is applied to press the unsealing operation part 24 inward, the upper inner flaps 18A and 18B open the unsealing operation part 24. Prevent inward deformation of Therefore, even if the packaging boxes 10 are stacked and arranged in a stacked state at the time of distribution for transporting goods or at a store, it is suppressed that the breaking line 25 is broken and the opening operation unit 24 is opened (broken). Or can be prevented. In addition, since the outer flap breaking portion 29 is also substantially provided in the overlapping regions R1 and R3, it does not break even when stacked and arranged. As a result, it is possible to prevent the visibility of the printing applied to the upper outer flaps 19A and 19B from being impaired. And since the opening operation part 24 and the outer flap fracture | rupture part 29 are provided only in the one end side of upper side outer flap 19A, 19B, the fall of rigidity (pressure resistance strength) can be suppressed.

包装箱１０を開封して商品を取り出す際には、図３に示すように、開封操作部２４を内向きに押し込み、破断線２５に沿って上側外フラップ１９Ａを破断しながら、折曲線２８に沿って内向きに折り曲げる。これにより、上側内フラップ１８Ｂに重畳した開封操作部２４の一部を変形させながら、開封操作用の開口部３３を形成する。その後、図４に示すように、開口部３３から指を差し込んで上側外フラップ１９Ａの内面側に引っ掛け、上側外フラップ１９Ａを外向きに操作する。 When opening the packaging box 10 and taking out the product, as shown in FIG. 3, the opening operation portion 24 is pushed inward, and the upper outer flap 19A is broken along the breaking line 25, while the folding curve 28 is Bend inward along. Thus, the opening 33 for the opening operation is formed while deforming a part of the opening operation unit 24 superimposed on the upper inner flap 18B. Thereafter, as shown in FIG. 4, a finger is inserted from the opening 33 and hooked on the inner surface side of the upper outer flap 19A, and the upper outer flap 19A is operated outward.

この際、作業者は、上側外フラップ１９Ａの先端縁や破断線２５による破断縁ではなく、折曲線２８に沿った折曲縁に手を当て、側壁１２Ａとの境界の第２折曲線２０を支点として外向きに開く。これにより、貼着部３２より非重畳領域ｒ１側に位置する外フラップ破断部２９の先端側端部が破断始点となり、基端側へ向けて順次破断が進む。また、上側外フラップ１９Ａにおいて、開封操作部２４および外フラップ破断部２９を設けていない上側内フラップ１８Ｂ側は、貼着部３２による貼着が引き剥がされる（剥離される）。その結果、上側外フラップ１９Ａは、上側内フラップ１８Ｂに貼着されたままとなる残留部１９ａを残して開放される。 At this time, the operator places a hand on the bending edge along the folding line 28 instead of the leading edge of the upper outer flap 19A or the breaking edge by the breaking line 25, and the second folding line 20 at the boundary with the side wall 12A. Open outward as a fulcrum. Thereby, the front end side end part of the outer flap fracture part 29 located in the non-overlapping region r1 side from the sticking part 32 becomes the fracture start point, and the fracture progresses sequentially toward the base end side. Further, in the upper outer flap 19A, the sticking by the sticking portion 32 is peeled off (peeled off) on the upper inner flap 18B side where the unsealing operation portion 24 and the outer flap breaking portion 29 are not provided. As a result, the upper outer flap 19A is opened leaving a remaining portion 19a which remains attached to the upper inner flap 18B.

次に、図５に示すように、逆側の上側内フラップ１８Ｂを同様に外フラップ破断部２９に沿って破断し、開口端の残り半分を開放する。最後に、上側内フラップ１８Ａ，１８Ｂを外向きに引き上げ、残留部１９ａと連続した側壁１２Ａ，１２Ｂとを第２折曲線２０に沿って破断しながら、開放する。なお、上側外フラップ１９Ａ，１９Ｂを開放する順番は逆でもよい。また、各開封操作部２４，２４を開口させた後に、外フラップ破断部２９に沿って破断して各上側外フラップ１９Ａ，１９Ｂを開放してもよい。 Next, as shown in FIG. 5, the opposite upper inner flap 18B is similarly broken along the outer flap break portion 29, and the other half of the open end is opened. Finally, the upper inner flaps 18A, 18B are pulled outward, and the remaining portions 19a and the side walls 12A, 12B continuous with the remaining portion 19a are broken along the second fold line 20 and opened. The order of opening the upper outer flaps 19A and 19B may be reversed. In addition, after opening the respective unsealing operation portions 24, 24, the upper outer flaps 19A, 19B may be opened by breaking along the outer flap broken portion 29.

このように、本発明の包装箱１０は、開封作業時に開封操作部２４の折曲線２８に沿った折曲縁に手が当たるため、作業者に痛みを感じさせることはない。また、外フラップ破断部２９が開封操作部２４に連続するため、開放操作の力を外フラップ破断部２９に直ぐに伝えて破断できる。しかも、上側外フラップ１９Ａ，１９Ｂは、一端側を外フラップ破断部２９によって破断し、他端側を剥離する。そのため、封緘状態での耐圧強度の劣化を抑えつつ、開封作業性を可能な限り向上できる。 As described above, the packaging box 10 of the present invention does not cause the operator to feel pain because the hand touches the bending edge along the folding line 28 of the opening operation unit 24 during the opening operation. Further, since the outer flap breakage portion 29 is continuous with the opening operation portion 24, the force of the opening operation can be immediately transmitted to the outer flap breakage portion 29 to be broken. Moreover, the upper outer flaps 19A and 19B are broken at one end by the outer flap breaking portion 29, and the other end is peeled off. Therefore, the unsealing workability can be improved as much as possible while suppressing the deterioration of the pressure resistance strength in the sealed state.

（第２実施形態）
図７は第２実施形態の包装箱１０を示す。この包装箱１０は、外フラップ破断部２９の基端側端部を、上側外フラップ１９Ａ，１９Ｂの側縁に向けて延びるようにした点で、第１実施形態と相違する。具体的には、第２実施形態の外フラップ破断部２９は、開封操作部２４の折曲線２８の延び方向に沿って上側外フラップ１９Ａ，１９Ｂの基端側へ向けて延びる第１破断部２９ａと、この第１破断部２９ａの基端側端部から上側外フラップ１９Ａ，１９Ｂの側縁に向けて横方向に延びる第２破断部２９ｂとを備える。 Second Embodiment
FIG. 7 shows the packaging box 10 of the second embodiment. The packaging box 10 differs from the first embodiment in that the proximal end of the outer flap breaking portion 29 extends toward the side edges of the upper outer flaps 19A and 19B. Specifically, the outer flap breaking portion 29 of the second embodiment is a first breaking portion 29a extending toward the base end side of the upper outer flaps 19A and 19B along the extension direction of the folding curve 28 of the opening operation portion 24. And a second break portion 29b extending laterally from the proximal end of the first break portion 29a to the side edge of the upper outer flaps 19A and 19B.

このようにした第２実施形態では、第１実施形態と同様の作用および効果を得ることができる。しかも、第２実施形態では、外フラップ破断部２９が上側外フラップ１９Ａ，１９Ｂの側縁にかけて延びるため、上側外フラップ１９Ａ，１９Ｂを開放すると、上側内フラップ１８Ａ，１８Ｂに残った残留部１９ａと側壁１２Ａ，１２Ｂとの間が確実に破断される。よって、上側内フラップ１８Ａ，１８Ｂの開放作業性を向上できる。 In the second embodiment, the same operation and effect as the first embodiment can be obtained. Moreover, in the second embodiment, since the outer flap breaking portion 29 extends to the side edges of the upper outer flaps 19A and 19B, when the upper outer flaps 19A and 19B are opened, the remaining portion 19a remaining on the upper inner flaps 18A and 18B The space between the side walls 12A and 12B is reliably broken. Therefore, the opening workability of the upper inner flaps 18A and 18B can be improved.

（第３実施形態）
図８は第３実施形態の包装箱１０を示す。この包装箱１０は、外フラップ破断部２９を開封操作部２４に連続させることなく、重畳領域Ｒ１，Ｒ３側の横（開封操作部２４と貼着部３２の間）において、上側外フラップ１９Ａ，１９Ｂの先端縁から基端縁にかけて延びるように設けた点で、第１実施形態と相違する。このようにした第３実施形態では、第１実施形態と同様の作用および効果を得ることができる。しかも、第３実施形態では、外フラップ破断部２９全体を重畳領域Ｒ１，Ｒ３に設けることができるため、積層配置される際の破れを更に確実に防止できる。 Third Embodiment
FIG. 8 shows the packaging box 10 of the third embodiment. In the packaging box 10, the upper outer flaps 19A, 19B are formed on the side of the overlapping regions R1 and R3 (between the opening operation portion 24 and the attaching portion 32) without connecting the outer flap breaking portion 29 to the opening operation portion 24. This embodiment differs from the first embodiment in that it is provided so as to extend from the distal end edge to the proximal end edge of 19 B. In the third embodiment as described above, the same operation and effect as those of the first embodiment can be obtained. Moreover, in the third embodiment, since the entire outer flap breaking portion 29 can be provided in the overlapping regions R1 and R3, it is possible to more reliably prevent a tear when being stacked and arranged.

（第４実施形態）
図９は第４実施形態の包装箱１０を示す。この包装箱１０は、開封操作部２４の折曲線２８を傾斜させることなく、上側外フラップ１９Ａ，１９Ｂの先端縁に対して直交方向（上側内フラップ１８Ａ，１８Ｂの先端縁に対して平行）に延びるように設けた点で、第１実施形態と相違する。このようにした第４実施形態では、第１実施形態と同様の作用および効果を得ることができる。 Fourth Embodiment
FIG. 9 shows the packaging box 10 of the fourth embodiment. The packaging box 10 is in a direction perpendicular to the leading edge of the upper outer flaps 19A, 19B (parallel to the leading edge of the upper inner flaps 18A, 18B) without inclining the folding line 28 of the opening operation section 24. This embodiment differs from the first embodiment in that it is provided to extend. In such a fourth embodiment, the same operation and effect as the first embodiment can be obtained.

（第５実施形態）
図１０は第５実施形態の包装箱１０を示す。この包装箱１０は、折曲線２８だけでなく、外フラップ破断部２９も上側外フラップ１９Ａ，１９Ｂの先端縁に対して直交方向に延びるように設けた点で、第４実施形態と相違する。このようにした第５実施形態では、封緘状態で外フラップ破断部２９が非重畳領域ｒ１，ｒ２に位置するため、積層配置すると外フラップ破断部２９で破れの可能性があるが、その他の部分では第１実施形態と同様の作用および効果を得ることができる。 Fifth Embodiment
FIG. 10 shows a packaging box 10 of the fifth embodiment. The packaging box 10 is different from the fourth embodiment in that not only the folding line 28 but also the outer flap breaking portion 29 is provided to extend in the direction orthogonal to the leading end edge of the upper outer flaps 19A and 19B. In the fifth embodiment, since the outer flap fracture portion 29 is located in the non-overlapping regions r1 and r2 in the sealed state, there is a possibility of tearing at the outer flap fracture portion 29 when stacked and arranged. In the above, the same operation and effect as those of the first embodiment can be obtained.

なお、本発明の包装箱１０は、前記実施形態の構成に限定されず、種々の変更が可能である。 In addition, the packaging box 10 of this invention is not limited to the structure of the said embodiment, A various change is possible.

例えば、開封操作部２４の破断線２５は、ミシン目状の切断線３０により構成したが、片ジッパーにより構成してもよいうえ、段ボールシートの裏ライナを切断し、反対側の表ライナは切断しないハーフカット線により構成してもよく、希望に応じて変更が可能である。同様に、外フラップ破断部２９は、片ジッパーにより構成したが、ミシン目状の切断線により構成してもよいうえ、ハーフカット線により構成してもよく、希望に応じて変更が可能である。 For example, although the break line 25 of the opening operation unit 24 is constituted by the perforated cutting line 30, it may be constituted by a single zipper, and the back liner of the corrugated sheet is cut and the front liner on the opposite side is cut. It may be constituted by a half cut line which can be changed as desired. Similarly, although the outer flap breaking portion 29 is configured by a single zipper, it may be configured by a perforated cutting line, or may be configured by a half cut line, and can be changed as desired .

また、開封操作部２４の折曲線２８は、破断線２５の一端部２５ｂに連続するように設けたが、両端部２５ａ，２５ｂに連続するように設けてもよい。この場合、開封操作部２４は、上側外フラップ１９Ａ，１９Ｂの先端ではなく、中間部分に設けてもよい。 In addition, although the bending curve 28 of the unsealing operation unit 24 is provided so as to be continuous with the one end 25b of the breaking line 25, it may be provided so as to be continuous with both ends 25a, 25b. In this case, the opening operation unit 24 may be provided not at the tip of the upper outer flaps 19A and 19B but at an intermediate portion.

また、開封操作部２４および外フラップ破断部２９は、上側外フラップ１９Ａ，１９Ｂの両方にそれぞれを設けたが、一方の上側外フラップ１９Ａ，１９Ｂだけに設けてもよい。また、上側外フラップ１９Ａ，１９Ｂの一端側だけに設けたが、両端に設けてもよい。また、下側外フラップ２２Ａ，２２Ｂにも設けて、天地の方向性を無くしてもよい。 Moreover, although the opening operation part 24 and the outer flap fracture | rupture part 29 each provided in both upper side outer flap 19A, 19B, you may provide only in one upper side outer flap 19A, 19B. Moreover, although provided only in the one end side of upper side outer flap 19A, 19B, you may provide in both ends. In addition, the lower outer flaps 22A and 22B may be provided to eliminate the directivity of the top and bottom.

また、各実施形態では、上側フラップ１８Ａ，１８Ｂ，１９Ａ，１９Ｂ同士および下側フラップ２１Ａ，２１Ｂ，２２Ａ，２２Ｂを接着剤により貼着したが、固着可能な周知の方法で固着してもよい。また、前記実施形態では、下側フラップ２１Ａ，２１Ｂ，２２Ａ，２２Ｂを一体的に設けたが、別体のトレイにより閉塞してもよい。 In each embodiment, the upper flaps 18A, 18B, 19A, 19B and the lower flaps 21A, 21B, 22A, 22B are adhered by an adhesive, but they may be adhered by a known method capable of adhering. Moreover, in the said embodiment, although lower side flap 21A, 21B, 22A, 22B was provided integrally, you may obstruct | occlude by a separate tray.

また、各実施形態では、包装箱１０を平面視四角形状をなすように形成したが、端壁１１Ａ，１１Ｂと側壁１２Ａ，１２Ｂの間に面取壁を設けた平面視八角形状としてもよく、平面視形状や側面視形状等の包装箱１０の形状は希望に応じて変更が可能である。即ち、外周壁の開口端に内フラップと外フラップとを連設し、これらフラップを固着して開口端を封緘する包装箱において、外フラップに開封操作部２４と外フラップ破断部２９とを各実施形態のように設ければよい。 In each embodiment, the packaging box 10 is formed to have a rectangular shape in plan view, but may have an octagonal shape in plan view in which a chamfer is provided between the end walls 11A and 11B and the side walls 12A and 12B. The shape of the packaging box 10, such as a plan view shape or a side view shape, can be changed as desired. That is, in the packaging box in which the inner flap and the outer flap are connected to the opening end of the outer peripheral wall and these flaps are fixed and the opening end is sealed, the opening operation portion 24 and the outer flap breaking portion 29 are provided on the outer flap. It may be provided as in the embodiment.

そして、前記実施形態では、紙製の段ボールシートを打ち抜いて包装箱１０を形成したが、樹脂製の段ボールシートを打ち抜いて形成してもよい。また、段ボールシートに限られず、単一の厚紙や樹脂シートにより形成してもよい。 And in the said embodiment, although the paper-made corrugated sheet was pierced and the packaging box 10 was formed, you may pierce | punch and form the resin-made corrugated sheet. Moreover, it is not restricted to a corrugated-cardboard sheet, You may form with a single thick paper or a resin sheet.

１０…包装箱
１１Ａ，１１Ｂ…端壁（外周壁）
１２Ａ，１２Ｂ…側壁（外周壁）
１３…糊代壁
１８Ａ，１８Ｂ…上側内フラップ
１９Ａ，１９Ｂ…上側外フラップ
２０…第２折曲線（開口端）
２４…開封操作部
２５…破断線
２５ｂ…端部（一端）
２８…折曲線
２９…外フラップ破断部
３２…貼着部
Ｒ１〜Ｒ４…重畳領域
ｒ１，ｒ２…非重畳領域 10: Packaging box 11A, 11B: end wall (peripheral wall)
12A, 12B ... side wall (outer peripheral wall)
13: Adhesive wall 18A, 18B: upper inner flap 19A, 19B: upper outer flap 20: second folding curve (opening end)
24 ... opening control unit 25 ... breaking line 25b ... end (one end)
28: folding curve 29: outer flap fracture portion 32: sticking portion R1 to R4: overlapping region r1, r2: non-overlapping region

Claims

The inner flaps are respectively connected to the opposite edges of the open end of the outer peripheral wall, and the outer flaps arranged on the outer side of the inner flap are connected to the edge of the open end intersecting the opposite edge. In the packaging box for sealing the open end,
Only on one side of the both sides of the outer flap where the inner flap is located,
A break line extending from the overlapping area overlapping the inner flap to the non-overlapping area distant from the inner flap, and a fold provided in the non-overlapping area so as to extend from one end of the breaking line to the tip of the outer flap An opening control unit having a curve and
An outer flap that extends from the distal end side of the outer flap toward the proximal end side of the outer flap that is continuous with the outer peripheral wall, and is broken into the fixed portion side to which the inner flap and the outer flap are fixed and the opening operation portion side What is claimed is: 1. A packaging box characterized in that a fractured portion is provided.

Packaging according to claim 1, wherein the unsealing operation portion provided on the distal end side of said outer flap, provided with the outer flap rupture portion from said opening operation portion so as to extend toward the proximal side box.

Packaging box according to claim 2, characterized in that said fold line of the opening operation portion, and at least the distal end side of the outer flap breaks, provided so as to be located on a straight line.

The outer flap rupture portion is formed so that at least the proximal side is positioned in the overlapping region, and the outer flaps and the inner flaps is secured at the distal end of the outer flap from said outer flap breaks The packaging box according to any one of claims 1 to 3, characterized in that.