JP3212219U

JP3212219U - Packaging box

Info

Publication number: JP3212219U
Application number: JP2017002709U
Authority: JP
Inventors: 中島　健; 健中島
Original assignee: Rengo Co Ltd
Current assignee: Rengo Co Ltd
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2017-08-31
Anticipated expiration: 2027-06-16

Abstract

【課題】容易に組み立てることができる包装箱を提供する。【解決手段】本考案の包装箱１は、底壁１０の幅方向両端部に起立姿勢で設けられる一対の側壁１１Ａ，１１Ｂと、一方の側壁１１Ａの側端部から他方の側壁１１Ｂに向かって延びた状態に設けられる第１端壁１４と、他方の側壁１１Ｂの側端部から一方の側壁１１Ａに向かって延びた状態に設けられる第２端壁１５と、を備え、第１端壁１４には、第２端壁１５が第１端壁１４と交差して重なりながら差し込まれる第１溝２０と、第１溝２０の最奥部２０Ａから更に第１端壁１４の基端に向かって切り込まれた第１切断線２１と、が設けられ、第２端壁１５には、第１端壁１４が第２端壁１５と交差して重なりながら差し込まれる第２溝３０と、第２溝３０の最奥部３０Ａから更に第２端壁１５の基端に向かって切り込まれ、第１切断線２１と噛み合う第２切断線３１と、が設けられている。【選択図】図４A packaging box that can be easily assembled is provided. A packaging box 1 of the present invention has a pair of side walls 11A and 11B provided in a standing posture at both widthwise ends of a bottom wall 10 and a side end of one side wall 11A toward the other side wall 11B. A first end wall 14 provided in an extended state and a second end wall 15 provided in a state extended from the side end portion of the other side wall 11B toward the one side wall 11A. The second end wall 15 is inserted while intersecting and overlapping the first end wall 14, and further from the innermost part 20 A of the first groove 20 toward the base end of the first end wall 14. The first cutting line 21 is provided, and the second end wall 15 is inserted into the second end wall 15 while the first end wall 14 intersects the second end wall 15 and overlaps with the second end wall 15. It is cut from the innermost part 30A of the groove 30 toward the base end of the second end wall 15, and the first cutting line 2 A second cutting line 31 that meshes with, is provided. [Selection] Figure 4

Description

本考案は、包装箱に関する。 The present invention relates to a packaging box.

接着作業（糊貼り）を行うことなく組み立てられる包装箱が知られている。 A packaging box that can be assembled without performing an adhesive operation (glue application) is known.

例えば、特許文献１に記載の組立箱は、一列に連なった第１〜第４の板と、各板の側端部に連なった第１〜第４側片と、を備えている。組立箱は、第１〜第４の板を折り曲げて角筒を形成し、第１の側片を折り曲げ、これに重ねるように第２の側片を折り曲げ、最後に第３の側片を折り曲げて、第３の側片に形成された舌状部を第１の側片に形成された切込部に挿入することで組み立てられていた。組立箱の側面は、第１〜第３の側片が重合して三重壁を構成していた。 For example, the assembly box described in Patent Document 1 includes first to fourth plates that are connected in a row, and first to fourth side pieces that are connected to a side end portion of each plate. The assembly box bends the first to fourth plates to form a square tube, bends the first side piece, bends the second side piece to overlap it, and finally bends the third side piece. Thus, the tongue-shaped portion formed on the third side piece is assembled by inserting it into the cut portion formed on the first side piece. On the side of the assembly box, the first to third side pieces were superposed to form a triple wall.

実公昭８−１６５３８号公報Japanese Utility Model Publication No. 8-16538

しかしながら、上記した組立箱では、３枚の側片を所定の順番で折り曲げなければ第３の側片を第１の側片に固定することができなかった。つまり、三重壁を構成するための組立作業が容易ではなかった。 However, in the above assembly box, the third side piece cannot be fixed to the first side piece unless the three side pieces are bent in a predetermined order. That is, the assembly work for constituting the triple wall was not easy.

本考案は、上記課題を解決するために、容易に組み立てることができる包装箱を提供する。 In order to solve the above problems, the present invention provides a packaging box that can be easily assembled.

上記した目的を達成するため、本考案の包装箱は、底壁と、前記底壁の幅方向両端部に起立姿勢で設けられる一対の側壁と、一方の前記側壁の側端部から他方の前記側壁に向かって延びた状態に設けられる第１端壁と、他方の前記側壁の側端部から一方の前記側壁に向かって延びた状態に設けられる第２端壁と、を備え、前記第１端壁には、その先端から基端に向かって切り欠かれ、前記第２端壁が前記第１端壁と交差して重なりながら差し込まれる第１溝と、前記第１溝の最奥部から更に前記第１端壁の基端に向かって切り込まれた第１切断線と、が設けられ、前記第２端壁には、その先端から基端に向かって切り欠かれ、前記第１端壁が前記第２端壁と交差して重なりながら差し込まれる第２溝と、前記第２溝の最奥部から更に前記第２端壁の基端に向かって切り込まれ、前記第１端壁と前記第２端壁とが互いに差し込まれた状態で、前記第１切断線と噛み合う第２切断線と、が設けられている。 In order to achieve the above-described object, the packaging box of the present invention includes a bottom wall, a pair of side walls provided in a standing posture at both ends in the width direction of the bottom wall, and a side end of one side wall to the other side. A first end wall provided in a state extending toward the side wall, and a second end wall provided in a state extending from the side end portion of the other side wall toward the one side wall. The end wall is notched from the distal end to the base end, and the second end wall is inserted while intersecting and overlapping the first end wall, and from the innermost part of the first groove And a first cutting line cut toward the base end of the first end wall, and the second end wall is cut away from the tip end toward the base end. A second groove that is inserted while the wall intersects and overlaps the second end wall; and the second groove further from the innermost part of the second groove. Cut along the proximal walls in a state in which the first end wall and said second end wall is inserted together, and a second cutting line which meshes with the first cutting line, are provided.

この場合、前記第１溝および前記第２溝は、それぞれ、先端から基端に向かって徐々に幅狭くなるように形成されていることが好ましい。 In this case, it is preferable that the first groove and the second groove are formed so as to gradually become narrower from the distal end toward the proximal end.

この場合、前記第１端壁の上端部から内側に向って延びた状態に設けられる内フラップと、前記他方の側壁の上端部から前記一方の側壁に向かって延び、前記内フラップに重なって前記一対の側壁の間の上面開口部を閉塞する天壁と、前記天壁の先端部から下方に延び、前記一方の側壁と前記内フラップとの間に差し込まれる差込片と、を更に備えていることが好ましい。 In this case, an inner flap provided in a state extending inward from the upper end portion of the first end wall, and extending from the upper end portion of the other side wall toward the one side wall, overlapped with the inner flap. A ceiling wall that closes an upper surface opening between the pair of side walls; and a plug that extends downward from a tip of the ceiling wall and is inserted between the one side wall and the inner flap. Preferably it is.

この場合、前記第１端壁は、前記第１溝よりも上側に形成され、前記内フラップが連なっている第１上側片と、前記第１溝よりも下側に形成されている第１下側片と、を含み、前記第２端壁は、前記第２溝よりも上側に形成されている第２上側片と、前記第２溝よりも下側で、前記第２上側片よりも幅方向に短く形成されている第２下側片と、を含み、前記第１端壁と前記第２端壁とが互いに差し込まれた状態で、前記第１上側片は前記第２上側片の外面に重なり、前記第１下側片は前記第２下側片の内面に重なることが好ましい。 In this case, the first end wall is formed on the upper side of the first groove, and the first upper piece connected to the inner flap and the first lower wall formed on the lower side of the first groove. The second end wall includes a second upper piece formed on the upper side of the second groove, and is lower than the second groove and wider than the second upper piece. A second lower piece formed short in a direction, and the first upper piece is an outer surface of the second upper piece in a state where the first end wall and the second end wall are inserted into each other. Preferably, the first lower piece overlaps the inner surface of the second lower piece.

この場合、前記底壁の幅方向の寸法は、前記側壁の高さよりも短いことが好ましい。 In this case, it is preferable that the dimension of the bottom wall in the width direction is shorter than the height of the side wall.

本考案によれば、包装箱を容易に組み立てることができる。 According to the present invention, the packaging box can be easily assembled.

本考案の一実施形態に係る包装箱を示す斜視図である。It is a perspective view which shows the packaging box which concerns on one Embodiment of this invention. 本考案の一実施形態に係る包装箱のブランクを示す平面図である。It is a top view which shows the blank of the packaging box which concerns on one Embodiment of this invention. 本考案の一実施形態に係る包装箱の第１下側片の先端部が第２下側片の内面に接触した状態を示す斜視図である。It is a perspective view which shows the state which the front-end | tip part of the 1st lower piece of the packaging box which concerns on one Embodiment of this invention contacted the inner surface of the 2nd lower piece. 本考案の一実施形態に係る包装箱の第１端壁と第２端壁とを互いに差し込む過程を示す斜視図である。It is a perspective view which shows the process in which the 1st end wall and 2nd end wall of the packaging box which concern on one Embodiment of this invention are mutually inserted. 本考案の一実施形態に係る包装箱の第１切断線と第２切断線とが互いに噛み合った状態を示す斜視図である。It is a perspective view showing the state where the 1st cutting line and the 2nd cutting line of the packaging box concerning one embodiment of the present invention were mutually meshed. 図１のＶＩ−ＶＩ断面図である。It is VI-VI sectional drawing of FIG.

以下、添付の図面を参照しつつ、本考案の実施形態について説明する。なお、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、本考案の技術的範囲を限定するものではない。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the present specification, terms indicating directions and positions are used, but these terms are used for convenience of description and do not limit the technical scope of the present invention.

［包装箱の概要］
図１および図２を参照して、包装箱１について説明する。図１は包装箱１を示す斜視図である。図２は包装箱１のブランク２を示す平面図である。なお、図１に示す「Ｄ」は「長さ方向」を示し、「Ｗ」は「幅方向」を示し、「Ｈ」は「高さ方向（上下方向）」を示している。 [Outline of the packaging box]
The packaging box 1 is demonstrated with reference to FIG. 1 and FIG. FIG. 1 is a perspective view showing the packaging box 1. FIG. 2 is a plan view showing the blank 2 of the packaging box 1. In FIG. 1, “D” indicates “length direction”, “W” indicates “width direction”, and “H” indicates “height direction (vertical direction)”.

図１に示すように、包装箱１は、長さ方向に細長い略直方体状に形成されている。詳細には、包装箱１の長さ方向の寸法は平面から見て幅方向の寸法よりも大きく（長く）、幅方向の寸法は側面から見て上下方向の寸法（高さ）よりも小さく（短く）なっている。包装箱１の内部には、所定の内容物（図示せず）が収容されるようになっている。 As shown in FIG. 1, the packaging box 1 is formed in a substantially rectangular parallelepiped shape elongated in the length direction. Specifically, the dimension in the length direction of the packaging box 1 is larger (longer) than the dimension in the width direction when viewed from the plane, and the dimension in the width direction is smaller than the dimension (height) in the vertical direction when viewed from the side surface ( Short). A predetermined content (not shown) is accommodated inside the packaging box 1.

包装箱１は、図２に示すブランク２を組み立てることで形成されている。ブランク２は、一枚の紙製の段ボールシートをダイカッタ等で打ち抜くことで形成されている。段ボールは、例えば、波状の中しん９Ａに表裏に表ライナ９Ｂと裏ライナ９Ｃ（図３参照）とを貼り合せたものである。なお、図２は表ライナ９Ｂ側（包装箱１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、段方向に直交する方向を「流れ方向」と呼ぶこととする。図２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、「上」、「下」およびこれに類する用語は、包装箱１を組み立てた状態（組立状態）における上、下およびこれに類する概念を指している。 The packaging box 1 is formed by assembling the blank 2 shown in FIG. The blank 2 is formed by punching out a piece of paper corrugated cardboard sheet with a die cutter or the like. For example, the corrugated cardboard is formed by attaching a front liner 9B and a back liner 9C (see FIG. 3) on the front and back sides of a corrugated center 9A. FIG. 2 shows the front liner 9B side (the outer surface side of the packaging box 1). In this specification, a direction parallel to the corrugated sheet 9 A is referred to as a “step direction”, and a direction orthogonal to the step direction is referred to as a “flow direction”. “X” shown in FIG. 2 indicates “stage direction”, and “Y” indicates “flow direction”. The terms “upper”, “lower”, and similar terms refer to the upper, lower, and similar concepts when the packaging box 1 is assembled (assembled state).

［ブランク］
図２に示すように、ブランク２は、底壁１０と、一対の側壁１１Ａ，１１Ｂと、天壁１２と、差込片１３と、一対の第１端壁１４と、一対の第２端壁１５と、一対の内フラップ１６と、を含んでいる。側壁１１Ａ、底壁１０、側壁１１Ｂ、天壁１２および差込片１３は、この順番で流れ方向一方から他方に向かって一列に並んでいる。一対の第１端壁１４は側壁１１Ａを挟んで段方向（長さ方向）に対向して配置され、一対の第２端壁１５は側壁１１Ｂを挟んで段方向に対向して配置されている。なお、一対の第１端壁１４は側壁１１Ａを挟んで対称に形成されているため、以下、一方（例えば図２で右側）の第１端壁１４について説明する。これと同様の理由で、以下、一対の第２端壁１５のうち一方の第２端壁１５について説明する。 [blank]
As shown in FIG. 2, the blank 2 includes a bottom wall 10, a pair of side walls 11 A and 11 B, a top wall 12, an insertion piece 13, a pair of first end walls 14, and a pair of second end walls. 15 and a pair of inner flaps 16. The side wall 11A, the bottom wall 10, the side wall 11B, the top wall 12, and the insertion piece 13 are aligned in this order from one side to the other in the flow direction. The pair of first end walls 14 are arranged to face each other in the step direction (length direction) with the side wall 11A interposed therebetween, and the pair of second end walls 15 are arranged to face each other in the step direction across the side wall 11B. . In addition, since a pair of 1st end wall 14 is formed symmetrically on both sides of 11 A of side walls, below (for example, the right side in FIG. 2) 1st end wall 14 is demonstrated below. For the same reason, one of the pair of second end walls 15 will be described below.

＜底壁、側壁＞
底壁１０は、段方向（長さ方向）に長い略長方形状に形成されている。一対の側壁１１Ａ，１１Ｂは、底壁１０の流れ方向両端部に第１罫線Ｌ１を介して連なった状態に設けられている。一対の側壁１１Ａ，１１Ｂは、それぞれ、第１罫線Ｌ１を長辺として段方向に長い略長方形状に形成されている。底壁１０の流れ方向（幅方向）の寸法（ｗ１）は、各側壁１１Ａ，１１Ｂの流れ方向の寸法（高さ（ｈ１））よりも短く設定されている。また、底壁１０は、各側壁１１Ａ，１１Ｂよりも僅かに段方向に長く形成されており、底壁１０の段方向両端部は、各側壁１１Ａ，１１Ｂの段方向両端部よりも段方向外側に僅かに突出している。 <Bottom wall, side wall>
The bottom wall 10 is formed in a substantially rectangular shape that is long in the step direction (length direction). The pair of side walls 11A and 11B are provided in a state of being connected to both ends in the flow direction of the bottom wall 10 via the first ruled line L1. Each of the pair of side walls 11A and 11B is formed in a substantially rectangular shape that is long in the step direction with the first ruled line L1 as a long side. The dimension (w1) in the flow direction (width direction) of the bottom wall 10 is set to be shorter than the dimension (height (h1)) in the flow direction of the side walls 11A and 11B. Moreover, the bottom wall 10 is formed slightly longer in the step direction than the side walls 11A and 11B, and both end portions in the step direction of the bottom wall 10 are outside in the step direction than both end portions in the step direction of the side walls 11A and 11B. Slightly protruding.

側壁１１Ａには、流れ方向一端（上端）から他端に向かって開け口１７Ａが略半円形状に切り欠かれている。開け口１７Ａは、側壁１１Ａの段方向（長さ方向）中央部に形成されている。各側壁１１Ａ，１１Ｂには、矩形穴１７Ｂと、２つの丸穴１７Ｃとが開口している。矩形穴１７Ｂは各側壁１１Ａ，１１Ｂの段方向略中央に形成され、２つの丸穴１７Ｃは矩形穴１７Ｂを段方向両外側から挟む位置に形成されている。なお、矩形穴１７Ｂや丸穴１７Ｃは、例えば、内容物の確認や通気をとるために形成されているが、不要であれば省略してもよい。 In the side wall 11A, an opening 17A is cut out in a substantially semicircular shape from one end (upper end) in the flow direction to the other end. The opening 17A is formed at the center in the step direction (length direction) of the side wall 11A. Each side wall 11A, 11B has a rectangular hole 17B and two round holes 17C. The rectangular hole 17B is formed in the center of each side wall 11A, 11B in the step direction, and the two round holes 17C are formed at positions sandwiching the rectangular hole 17B from both outsides in the step direction. Note that the rectangular hole 17B and the round hole 17C are formed, for example, for checking the contents and taking air, but may be omitted if unnecessary.

＜天壁、差込片＞
天壁１２は、側壁１１Ｂの流れ方向他端部（上端部）に第１罫線Ｌ１を介して連なった状態に設けられている。天壁１２は、底壁１０と略同一寸法となる略長方形状に形成されている。差込片１３は、天壁１２の流れ方向他端部に第１罫線Ｌ１を介して連なった状態に設けられている。差込片１３は、第１罫線Ｌ１を長辺として段方向に細長い略長方形状に形成されている。詳細には、差込片１３の段方向の寸法は、天壁１２の段方向の寸法よりも僅かに短く設定され、差込片１３の流れ方向の寸法（延出寸法）は、天壁１２の流れ方向の寸法よりも短く（半分以下に）設定されている。なお、差込片１３の先端側（自由端側）角部は、円弧状に面取りされている（Ｒ形状）。 <Ceiling wall, plug>
The top wall 12 is provided in a state of being connected to the other end (upper end) in the flow direction of the side wall 11B via the first ruled line L1. The top wall 12 is formed in a substantially rectangular shape having substantially the same dimensions as the bottom wall 10. The insertion piece 13 is provided in a state of being connected to the other end portion in the flow direction of the top wall 12 via the first ruled line L1. The insertion piece 13 is formed in a substantially rectangular shape elongated in the step direction with the first ruled line L1 as a long side. Specifically, the dimension in the step direction of the insertion piece 13 is set slightly shorter than the dimension in the step direction of the top wall 12, and the dimension in the flow direction (extension dimension) of the insertion piece 13 is set to the ceiling wall 12. It is set to be shorter (less than half) than the dimension in the flow direction. In addition, the front end side (free end side) corner | angular part of the insertion piece 13 is chamfered by circular arc shape (R shape).

＜第１端壁、内フラップ＞
第１端壁１４は、側壁１１Ａの段方向一端部に第２罫線Ｌ２を介して連なった状態に設けられている。第１端壁１４は、第２罫線Ｌ２を長辺として流れ方向（上下方向）に長い略長方形状に形成されている。第１端壁１４の段方向（幅方向）の寸法（延出寸法（（ｗ２）））は、底壁１０（天壁１２）の流れ方向の寸法（ｗ１）と略同一である（ｗ２≒ｗ１）。つまり、第１端壁１４の延出寸法（ｗ２）は、側壁１０Ａの高さ（ｈ１）よりも短く設定されている（ｗ２＜ｈ１）。第１端壁１４の流れ方向一端部（上端部）には、第３罫線Ｌ３を介して内フラップ１６が連なった状態に設けられている。内フラップ１６は、第３罫線Ｌ３を長辺として段方向（幅方向）に長い略長方形状に形成されている。内フラップ１６の流れ方向の寸法（延出寸法）は、第１端壁１４の流れ方向の寸法よりも短く（１／４以下に）設定されている。なお、内フラップ１６の先端側（自由端側）角部は、円弧状に面取りされている（Ｒ形状）。 <First end wall, inner flap>
The first end wall 14 is provided in a state of being connected to one end of the side wall 11A in the step direction via the second ruled line L2. The first end wall 14 is formed in a substantially rectangular shape that is long in the flow direction (vertical direction) with the second ruled line L2 as a long side. The dimension (extension dimension ((w2))) in the step direction (width direction) of the first end wall 14 is substantially the same as the dimension (w1) in the flow direction of the bottom wall 10 (top wall 12) (w2≈ w1). That is, the extension dimension (w2) of the first end wall 14 is set shorter than the height (h1) of the side wall 10A (w2 <h1). One end portion (upper end portion) in the flow direction of the first end wall 14 is provided in a state in which the inner flap 16 is connected via the third ruled line L3. The inner flap 16 is formed in a substantially rectangular shape that is long in the step direction (width direction) with the third ruled line L3 as a long side. The dimension (extension dimension) of the inner flap 16 in the flow direction is set shorter (less than ¼) than the dimension of the first end wall 14 in the flow direction. In addition, the front end side (free end side) corner portion of the inner flap 16 is chamfered in an arc shape (R shape).

第１端壁１４には、第１溝２０と、第１切断線２１と、が設けられている。第１溝２０および第１切断線２１は、第１端壁１４の流れ方向（上下方向）略中央に形成され、第１端壁１４の段方向外側を二股に分岐させている。二股に分かれた第１端壁１４において、第１溝２０よりも流れ方向一方（上側）には第１上側片１４Ａが形成され、第１溝２０よりも流れ方向他方（下側）には第１下側片１４Ｂが形成されている。第１上側片１４Ａと第１下側片１４Ｂとは、流れ方向に対称（上下対称）に形成されている。第１上側片１４Ａの流れ方向一端部（上端部）には、上記した内フラップ１６が連なっている。 The first end wall 14 is provided with a first groove 20 and a first cutting line 21. The first groove 20 and the first cutting line 21 are formed substantially at the center in the flow direction (vertical direction) of the first end wall 14, and the stepwise outer side of the first end wall 14 is bifurcated. In the first end wall 14 that is bifurcated, a first upper piece 14A is formed on one side (upper side) of the first groove 20 in the flow direction, and a first upper piece 14A is formed on the other side (lower side) of the first groove 20 in the flow direction. 1 A lower piece 14B is formed. The first upper piece 14A and the first lower piece 14B are formed symmetrically (vertically symmetrical) in the flow direction. The inner flap 16 is connected to one end (upper end) in the flow direction of the first upper piece 14A.

（第１溝）
第１溝２０は、第１端壁１４の先端（段方向外端）から基端（第２罫線Ｌ２側）に向かって切り欠かれている。詳細には、第１溝２０は、第１端壁１４の先端から基端に向かって徐々に幅狭くなる略三角形状に形成されている。更に詳細には、第１溝２０は、流れ方向に幅広く形成された先端から基端に向かって次第に幅狭くなり、途中から狭くなった幅で最奥部２０Ａまで延びている。すなわち、第１溝２０を構成する第１上側片１４Ａと第１下側片１４Ｂとの縁部は、先端から基端に向かって互いに接近するように斜めに延びた後、第１溝２０の最奥部２０Ａまで段方向と平行に延びている。なお、第１溝２０の最奥部２０Ａは、第１端壁１４の段方向中央よりもやや先端側に位置している。 (1st groove)
The 1st groove | channel 20 is notched toward the base end (2nd ruled line L2 side) from the front-end | tip (step direction outer end) of the 1st end wall 14. As shown in FIG. Specifically, the first groove 20 is formed in a substantially triangular shape that gradually becomes narrower from the distal end of the first end wall 14 toward the proximal end. More specifically, the first groove 20 gradually decreases in width from the distal end formed widely in the flow direction toward the proximal end, and extends to the innermost portion 20A with a width that is narrowed from the middle. That is, the edges of the first upper piece 14A and the first lower piece 14B constituting the first groove 20 extend obliquely so as to approach each other from the distal end toward the proximal end, and then the first groove 20 It extends in parallel with the step direction up to the innermost part 20A. Note that the innermost portion 20 A of the first groove 20 is located slightly on the tip side from the center in the step direction of the first end wall 14.

（第１切断線）
第１切断線２１は、第１溝２０の最奥部２０Ａから更に第１端壁１４の基端に向かって切り込まれている。第１切断線２１は、最奥部２０Ａから第１端壁１４の段方向中央の僅かに手前まで延びている。 (First cutting line)
The first cutting line 21 is cut from the innermost part 20 A of the first groove 20 toward the base end of the first end wall 14. The first cutting line 21 extends from the innermost part 20 A to the near side of the center in the step direction of the first end wall 14.

＜第２端壁＞
第２端壁１５は、側壁１１Ｂの段方向一端部に第２罫線Ｌ２を介して連なった状態に設けられている。第２端壁１５は、第２罫線Ｌ２を長辺として流れ方向（上下方向）に長い略長方形状に形成されている。第２端壁１５の段方向（幅方向）の最大寸法（延出寸法（ｗ３））は、底壁１０（天壁１２）の流れ方向の寸法（ｗ１）と略同一である（ｗ３≒ｗ１≒ｗ２）。つまり、第２端壁１５の延出寸法（ｗ３）は、側壁１０Ｂの高さ（ｈ１）よりも短く設定されている（ｗ３＜ｈ１）。 <Second end wall>
The second end wall 15 is provided in a state of being connected to one end portion in the step direction of the side wall 11B via the second ruled line L2. The second end wall 15 is formed in a substantially rectangular shape that is long in the flow direction (vertical direction) with the second ruled line L2 as a long side. The maximum dimension (extension dimension (w3)) in the step direction (width direction) of the second end wall 15 is substantially the same as the dimension (w1) in the flow direction of the bottom wall 10 (top wall 12) (w3≈w1). ≒ w2). That is, the extension dimension (w3) of the second end wall 15 is set to be shorter than the height (h1) of the side wall 10B (w3 <h1).

上記した第１端壁１４と同様に、第２端壁１５には、第２溝３０と、第２切断線３１と、が設けられている。第２溝３０および第２切断線３１は、第２端壁１５の流れ方向（上下方向）略中央に形成され、第２端壁１５の段方向（幅方向）外側を二股に分岐させている。二股に分かれた第２端壁１５において、第２溝３０よりも流れ方向他方（上側）には第２上側片１５Ａが形成され、第２溝３０よりも流れ方向一方（下側）には第２下側片１５Ｂが形成されている。第２下側片１５Ｂは、第２上側片１５Ａよりも段方向（幅方向）に短く形成されている。つまり、第２下側片１５Ｂの延出寸法が第２上側片１５Ａの延出寸法よりも短いため、第２端壁１５の流れ方向外端部には段差が形成されている。 Similar to the first end wall 14 described above, the second end wall 15 is provided with a second groove 30 and a second cutting line 31. The 2nd groove | channel 30 and the 2nd cutting line 31 are formed in the flow direction (up-down direction) substantially center of the 2nd end wall 15, and have branched the step direction (width direction) outer side of the 2nd end wall 15 into two branches. . In the second end wall 15 divided into two, the second upper piece 15A is formed on the other side (upper side) of the second groove 30 in the flow direction, and the second upper side piece 15A is formed on one side (lower side) of the second groove 30 in the flow direction. 2 A lower piece 15B is formed. The second lower piece 15B is shorter than the second upper piece 15A in the step direction (width direction). That is, since the extension dimension of the second lower piece 15B is shorter than the extension dimension of the second upper piece 15A, a step is formed at the outer end of the second end wall 15 in the flow direction.

（第２溝）
第２溝３０は、第２端壁１５の先端（段方向外端）から基端（第２罫線Ｌ２側）に向かって切り欠かれている。詳細には、第２溝３０は、第２端壁１５の先端から基端に向かって徐々に幅狭くなる略三角形状に形成されている。更に詳細には、第２溝３０を構成する第２上側片１５Ａ側の縁部は、先端から第２溝３０の最奥部３０Ａに向かって、流れ方向他方から一方に直線状に傾斜している（下り勾配になっている）。また、第２溝３０を構成する第２下側片１５Ｂ側の縁部は、先端部を円弧状に面取りされ、その円弧の基端から第２溝３０の最奥部３０Ａまで段方向と平行に延びている。なお、第２溝３０の最奥部３０Ａは、第２端壁１５の段方向中央よりもやや先端側に位置している。 (Second groove)
The second groove 30 is cut away from the distal end (stepwise outer end) of the second end wall 15 toward the base end (second ruled line L2 side). Specifically, the second groove 30 is formed in a substantially triangular shape that gradually becomes narrower from the distal end of the second end wall 15 toward the proximal end. More specifically, the edge on the second upper piece 15A side that constitutes the second groove 30 is inclined linearly from one end to the other in the flow direction toward the innermost part 30A of the second groove 30. Yes (down slope). Further, the edge of the second lower piece 15B side that constitutes the second groove 30 is chamfered in a circular arc shape at the tip, and is parallel to the step direction from the base end of the arc to the innermost part 30A of the second groove 30. It extends to. Note that the innermost portion 30 A of the second groove 30 is located slightly on the tip side from the center in the step direction of the second end wall 15.

（第２切断線）
第２切断線３１は、第２溝３０の最奥部３０Ａから更に第２端壁１５の基端に向かって切り込まれている。第２切断線３１は、最奥部３０Ａから第２端壁１５の段方向中央の僅かに手前まで延びている。 (Second cutting line)
The second cutting line 31 is cut from the innermost part 30 A of the second groove 30 toward the base end of the second end wall 15. The second cutting line 31 extends from the innermost part 30 A to the near side of the center of the second end wall 15 in the step direction.

なお、第１罫線Ｌ１、第２罫線Ｌ２および第３罫線Ｌ３は、それぞれ、段ボールシートを裏ライナ９Ｃ側から厚み方向に潰して形成された汎用罫線である。また、第１切断線２１および第２切断線３１は、それぞれ、刃物を段ボールシートの厚み方向に貫通させることで形成された切目である。 The first ruled line L1, the second ruled line L2, and the third ruled line L3 are general-purpose ruled lines formed by crushing the cardboard sheet in the thickness direction from the back liner 9C side. Moreover, the 1st cutting line 21 and the 2nd cutting line 31 are cuts formed by penetrating the cutter in the thickness direction of the cardboard sheet, respectively.

［組立工程］
次に、図１、図３ないし図６を参照して、包装箱１の組立工程（組立作業）について説明する。図３は第１下側片１４Ｂの先端部が第２下側片１５Ｂの内面に接触した状態を示す斜視図である。図４は第１端壁１４と第２端壁１５とを互いに差し込む過程を示す斜視図である。図５は第１切断線２１と第２切断線３１とが互いに噛み合った状態を示す斜視図である。図６は、図１のＶＩ−ＶＩ断面図である。なお、包装箱１は、作業者によって手作業で組み立てられてもよいし、製函機によって自動または半自動で組み立てられてもよい。ここでは、作業者が包装箱１を組み立てる場合について説明する。 [Assembly process]
Next, the assembly process (assembly operation) of the packaging box 1 will be described with reference to FIGS. 1 and 3 to 6. FIG. 3 is a perspective view showing a state where the tip of the first lower piece 14B is in contact with the inner surface of the second lower piece 15B. FIG. 4 is a perspective view showing a process of inserting the first end wall 14 and the second end wall 15 into each other. FIG. 5 is a perspective view showing a state in which the first cutting line 21 and the second cutting line 31 are engaged with each other. 6 is a cross-sectional view taken along the line VI-VI in FIG. The packaging box 1 may be assembled manually by an operator, or may be assembled automatically or semi-automatically by a box making machine. Here, the case where an operator assembles the packaging box 1 will be described.

包装箱１は、裏ライナ９Ｃを上方に向けたブランク２を適宜折り曲げることで組み立てられる。まず、図３に示すように、作業者は、一対の第１端壁１４を第２罫線Ｌ２に沿って折り曲げて側壁１１Ａに対して略垂直に立ち上げる。また、作業者は、一対の第２端壁１５を第２罫線Ｌ２に沿って折り曲げて側壁１１Ｂに対して略垂直に立ち上げる。続いて、作業者は、一対の側壁１１Ａ，１１Ｂを底壁１０に対して立ち上げるために、一対の側壁１１Ａ，１１Ｂを第１罫線Ｌ１に沿って折り曲げる。この際、作業者は、一対の第１下側片１４Ｂを一対の第２下側片１５Ｂの内側に進入させ、一対の第２上側片１５Ａを一対の第１上側片１４Ａの内側に進入させる。なお、以下、説明を簡単にするため、主に、１つの第１端壁１４および１つの第２端壁１５について説明する。 The packaging box 1 is assembled by appropriately bending the blank 2 with the back liner 9C facing upward. First, as shown in FIG. 3, the worker bends the pair of first end walls 14 along the second ruled line L2 and stands up substantially perpendicular to the side wall 11A. Further, the worker bends the pair of second end walls 15 along the second ruled line L2 and stands up substantially perpendicular to the side wall 11B. Subsequently, the worker bends the pair of side walls 11A and 11B along the first ruled line L1 in order to raise the pair of side walls 11A and 11B with respect to the bottom wall 10. At this time, the operator causes the pair of first lower pieces 14B to enter inside the pair of second lower pieces 15B, and causes the pair of second upper pieces 15A to enter inside the pair of first upper pieces 14A. . In the following, for the sake of simplicity, one first end wall 14 and one second end wall 15 will be mainly described.

図３に示すように、各側壁１１Ａ，１１Ｂを折り曲げる（立ち上げる）と、まず、第１下側片１４Ｂの先端部が、第２下側片１５Ｂの内面に接触する。第１端壁１４と第２端壁１５とは、第１下側片１４Ｂの先端部を第２下側片１５Ｂの内面に接触させた状態で、互いに近づく方向に移動する（図３の太矢印参照）。 As shown in FIG. 3, when the side walls 11A and 11B are bent (raised), first, the tip of the first lower piece 14B comes into contact with the inner surface of the second lower piece 15B. The first end wall 14 and the second end wall 15 move toward each other in a state where the tip of the first lower piece 14B is in contact with the inner surface of the second lower piece 15B (see FIG. 3). See arrow).

図４に示すように、各側壁１１Ａ，１１Ｂの折り曲げが進むと、第１端壁１４は第２端壁１５の第２溝３０に進入し、第２端壁１５は第１端壁１４の第１溝２０に進入する。また、第２上側片１５Ａの先端部は、第１上側片１４Ａの内面に接触する。各側壁１１Ａ，１１Ｂの折り曲げが更に進むと、第１端壁１４と第２端壁１５とは、第１下側片１４Ｂの先端部を第２下側片１５Ｂの内面に接触させた状態、且つ第２上側片１５Ａの先端部を第１上側片１４Ａの内面に接触させた状態で、互いに重なり合うように移動する（図４の太矢印参照）。第１溝２０には、第２端壁１５が第１端壁１４と交差して重なりながら差し込まれて行く。一方、第２溝３０には、第１端壁１４が第２端壁１５と交差して重なりながら差し込まれて行く。そして、第１端壁１４と第２端壁１５とが交差すると共に互いに差し込まれた状態になる。また、第１端壁１４と第２端壁１５との交差部分（交点）で、第１溝２０の最奥部２０Ａが第２溝３０の最奥部３０Ａに対向した状態になる。 As shown in FIG. 4, as the side walls 11 A and 11 B are bent, the first end wall 14 enters the second groove 30 of the second end wall 15, and the second end wall 15 extends from the first end wall 14. Enter the first groove 20. The tip of the second upper piece 15A is in contact with the inner surface of the first upper piece 14A. When the bending of each side wall 11A, 11B further proceeds, the first end wall 14 and the second end wall 15 are in a state where the tip of the first lower piece 14B is in contact with the inner surface of the second lower piece 15B, Further, the second upper piece 15A moves so as to overlap each other in a state where the tip of the second upper piece 15A is in contact with the inner surface of the first upper piece 14A (see the thick arrow in FIG. 4). The second end wall 15 is inserted into the first groove 20 while intersecting and overlapping the first end wall 14. On the other hand, the first end wall 14 is inserted into the second groove 30 while intersecting and overlapping the second end wall 15. Then, the first end wall 14 and the second end wall 15 intersect and are inserted into each other. Further, at the intersection (intersection) between the first end wall 14 and the second end wall 15, the innermost portion 20 A of the first groove 20 faces the innermost portion 30 A of the second groove 30.

図５に示すように、この状態から、一対の側壁１１Ａ，１１Ｂを互いに近づく方向に押し込むと、第１端壁１４と第２端壁１５との交点で、第１切断線２１と第２切断線３１とが互いに噛み合う。この状態で、一対の側壁１１Ａ，１１Ｂは、底壁１０の幅方向両端部に起立姿勢で設けられる。つまり、一対の側壁１１Ａ，１１Ｂは幅方向に対向配置される。第１端壁１４は、一方の側壁１１Ａの長さ方向端部（側端部）から他方の側壁１１Ｂに向かって延びた状態に設けられる。第２端壁１５は、他方の側壁１０Ｂの長さ方向端部（側端部）から一方の側壁１１Ａに向かって延びた状態に設けられる。また、この状態で、第１上側片１４Ａは第２上側片１５Ａの外面に重なり、第１下側片１４Ｂは第２下側片１５Ｂの内面に重なる（図４参照）。つまり、第１端壁１４と第２端壁１５とは、交差した状態で重なり合って二重壁を構成する。一対の二重壁（１４，１５）は長さ方向に対向配置される。また、この状態で、第１下側片１４Ｂの先端部は側壁１１Ｂの内面に突き当たり、第２上側片１５Ａの先端部は側壁Ａの内面に突き当たっている（図６参照）。さらに、この状態で、第２切断線３１が第１切断線２１に噛み合うため、第１端壁１４と第２端壁１５とが互いに差し込まれた状態に仮保持される。 As shown in FIG. 5, when the pair of side walls 11 A and 11 B are pushed in a direction approaching each other from this state, the first cutting line 21 and the second cutting line are crossed at the intersection of the first end wall 14 and the second end wall 15. Line 31 meshes with each other. In this state, the pair of side walls 11 A and 11 B are provided in a standing posture at both ends in the width direction of the bottom wall 10. That is, the pair of side walls 11A and 11B are disposed to face each other in the width direction. The 1st end wall 14 is provided in the state extended toward the other side wall 11B from the length direction edge part (side edge part) of one side wall 11A. The second end wall 15 is provided in a state extending from the lengthwise end (side end) of the other side wall 10B toward the one side wall 11A. In this state, the first upper piece 14A overlaps the outer surface of the second upper piece 15A, and the first lower piece 14B overlaps the inner surface of the second lower piece 15B (see FIG. 4). That is, the first end wall 14 and the second end wall 15 overlap each other in an intersecting state to form a double wall. The pair of double walls (14, 15) are arranged to face each other in the length direction. In this state, the tip of the first lower piece 14B hits the inner surface of the side wall 11B, and the tip of the second upper piece 15A hits the inner surface of the side wall A (see FIG. 6). Further, in this state, since the second cutting line 31 is engaged with the first cutting line 21, the first end wall 14 and the second end wall 15 are temporarily held in a state of being inserted into each other.

以上によって、側壁１１Ａ，１１Ｂ、第１端壁１４および第２端壁１５が底壁１０の周縁部を囲むように設けられ、上面開口部１Ｕを有する周壁１Ａが形成される。次に、作業者は、周壁１Ａの上面開口部１Ｕから周壁１Ａの内部に内容物を入れる。 By the above, side wall 11A, 11B, the 1st end wall 14, and the 2nd end wall 15 are provided so that the peripheral part of the bottom wall 10 may be enclosed, and the surrounding wall 1A which has the upper surface opening part 1U is formed. Next, an operator puts contents into the inside of the peripheral wall 1A from the upper surface opening 1U of the peripheral wall 1A.

その後、作業者は、一対の内フラップ１６を第３罫線Ｌ３に沿って内側に折り曲げる（図５太矢印参照）。内フラップ１６は、第１端壁１４の上端部から内側に向って延びた状態に設けられ、第２端壁１５の上端部を覆い隠す（図６参照）。続いて、図１および図６に示すように、作業者は、天壁１２および差込片１３を第１罫線Ｌ１に沿って内側に折り曲げ、差込片１３を周壁１Ａの内側に差し込む。天壁１２は、他方の側壁１１Ｂの上端部から一方の側壁１１Ａに向かって延び、内フラップ１６に重なって一対の側壁１１Ａ，１１Ｂの間の上面開口部１Ｕを閉塞する。差込片１３は、天壁１２の先端部から下方に延び、一方の側壁１１Ａと内フラップ１６との間に差し込まれる。 Thereafter, the operator bends the pair of inner flaps 16 inward along the third ruled line L3 (see thick arrows in FIG. 5). The inner flap 16 is provided in a state extending inward from the upper end portion of the first end wall 14 and covers the upper end portion of the second end wall 15 (see FIG. 6). Subsequently, as shown in FIGS. 1 and 6, the operator bends the top wall 12 and the insertion piece 13 inward along the first ruled line L1, and inserts the insertion piece 13 into the inside of the peripheral wall 1A. The top wall 12 extends from the upper end of the other side wall 11B toward the one side wall 11A and overlaps the inner flap 16 to close the upper surface opening 1U between the pair of side walls 11A and 11B. The insertion piece 13 extends downward from the tip of the top wall 12 and is inserted between one side wall 11 A and the inner flap 16.

以上によって、天壁１２および差込片１３が一対の側壁１１Ａ，１１Ｂの間に架設され、一対の側壁１１Ａ，１１Ｂの間隔が一定に保持される。このため、第１端壁１４と第２端壁１５とが互いに差し込まれた状態に固定される。つまり、包装箱１が封緘された状態になる。なお、包装箱１を開封する場合、ユーザが開け口１７Ａに露出した差込片１３に指を掛けて天壁１２を上方に持ち上げることで包装箱１を開封することができる。 By the above, the top wall 12 and the insertion piece 13 are constructed between a pair of side walls 11A and 11B, and the space | interval of a pair of side walls 11A and 11B is kept constant. For this reason, the 1st end wall 14 and the 2nd end wall 15 are fixed to the state where it was inserted mutually. That is, the packaging box 1 is sealed. When the packaging box 1 is opened, the packaging box 1 can be opened by the user placing a finger on the insertion piece 13 exposed at the opening 17A and lifting the top wall 12 upward.

以上説明した本実施形態に係る包装箱１では、第１端壁１４と第２端壁１５とを互いに交差させつつ重ね合せることで、２枚の端壁１４，１５の交点で第１切断線２１と第２切断線３１とが噛み合う構成とした（図１参照）。この構成によれば、２枚の端壁１４，１５をクロスさせて互いに押し込むという簡単な手順で、２つの切断線２１，３１を噛み合わせて２枚の端壁１４，１５を接続することができる。これにより、長さ方向両端に二重壁を有する包装箱１を容易に組み立てることができる。 In the packaging box 1 according to the present embodiment described above, the first end line 14 and the second end wall 15 are overlapped with each other while intersecting each other, so that the first cutting line is at the intersection of the two end walls 14 and 15. 21 and the second cutting line 31 mesh with each other (see FIG. 1). According to this configuration, the two end walls 14 and 15 can be connected to each other by engaging the two cutting lines 21 and 31 with a simple procedure of crossing and pushing the two end walls 14 and 15 together. it can. Thereby, the packaging box 1 which has a double wall in the length direction both ends can be assembled easily.

また、２枚の端壁１４，１５をクロスさせて互いに押し込むという簡単な組み立て手順であるため、例えば、厚紙よりも厚い段ボールシートを用いていても、包装箱１を容易に組み立てることができる（組立作業性の向上）。 Moreover, since the assembly procedure is such that the two end walls 14 and 15 are crossed and pushed into each other, the packaging box 1 can be easily assembled even if a cardboard sheet thicker than cardboard is used, for example ( Improved assembly workability).

また、本実施形態に係る包装箱１では、第１溝２０が第１端壁１４の先端から基端に向かって先細る形状とされ、第２溝３０が第２端壁１５の先端から基端に向かって先細る形状とされる構成とした（図２参照）。この構成によれば、各溝２０，３０に差し込まれる各端壁１４，１５を各切断線２１，３１に向けてガイドすることができる。これにより、２つの切断線２１，３１を適切に噛み合わせることができる。 In the packaging box 1 according to the present embodiment, the first groove 20 is tapered from the distal end of the first end wall 14 toward the proximal end, and the second groove 30 is formed from the distal end of the second end wall 15. The configuration is such that the shape tapers toward the end (see FIG. 2). According to this configuration, the end walls 14 and 15 inserted into the grooves 20 and 30 can be guided toward the cutting lines 21 and 31. Thereby, the two cutting lines 21 and 31 can be meshed appropriately.

また、本実施形態に係る包装箱１では、差込片１３が一方の側壁１１Ａと内フラップ１６との間に差し込まれることで、天壁１２が一対の側壁１１Ａ、１１Ｂの間に架設される構成とした（図６参照）。この構成によれば、２つの切断線２１，３１を介して接続された２枚の端壁１４，１５を互いに引き離そうとすると、差込片１３が内フラップ１６に突き当たるため、２枚の端壁１４，１５の分離を規制することができる（図６参照）。これにより、包装箱１が封緘された状態（天壁１２が上面開口部１Ｕを閉塞した状態）を適切に維持することができる。 Moreover, in the packaging box 1 which concerns on this embodiment, when the insertion piece 13 is inserted between one side wall 11A and the inner flap 16, the top wall 12 is constructed between a pair of side walls 11A and 11B. It was set as the structure (refer FIG. 6). According to this configuration, when the two end walls 14 and 15 connected via the two cutting lines 21 and 31 are separated from each other, the insertion piece 13 hits the inner flap 16, so that the two end walls 14 and 15 can be restricted (see FIG. 6). Thereby, the state (state in which the top wall 12 obstruct | occluded the upper surface opening part 1U) in which the packaging box 1 was sealed can be maintained appropriately.

また、本実施形態に係る包装箱１によれば、第１上側片１４Ａが第２上側片１５Ａの外側に位置しているため、内側に折り曲げられた内フラップ１６によって第２上側片１５Ａの上端面（切断面）を覆うことができる。これにより、段ボールシートの端面（切断面）に表れる中しん９Ａ等を隠すことができ、良好な意匠性を備えた包装箱１を提供することができる。また、内フラップ１６が天壁１２と第２上側片１５Ａの上端面との間に挟まれるため、第１上側片１４Ａが長さ方向外側に倒れることを抑制することができる。これにより、第１端壁１４と第２端壁１５とが交差して重なった状態を保持することができる。また、第２下側片１５Ｂの延出寸法が第２上側片１５Ａの延出寸法よりも短いため、２枚の端壁１４，１５を互いに交差させつつ重ね合せる際（図３参照）、第１下側片１４Ｂの先端部が第２下側片１５Ｂの内面に接触するタイミングを遅らせることができる。これにより、２枚の端壁１４，１５を交差させつつ重ね合せる作業を円滑に行うことができる。 Moreover, according to the packaging box 1 which concerns on this embodiment, since the 1st upper piece 14A is located in the outer side of the 2nd upper piece 15A, on the 2nd upper piece 15A by the inner flap 16 bent inside, The end surface (cut surface) can be covered. As a result, it is possible to conceal the inner lining 9A and the like appearing on the end surface (cut surface) of the corrugated cardboard sheet, and it is possible to provide the packaging box 1 having good design properties. Further, since the inner flap 16 is sandwiched between the top wall 12 and the upper end surface of the second upper piece 15A, it is possible to prevent the first upper piece 14A from falling down in the longitudinal direction. Thereby, the state which the 1st end wall 14 and the 2nd end wall 15 cross | intersected and overlapped can be hold | maintained. Further, since the extension dimension of the second lower piece 15B is shorter than the extension dimension of the second upper piece 15A, when the two end walls 14 and 15 are overlapped with each other (see FIG. 3), The timing at which the tip of the first lower piece 14B contacts the inner surface of the second lower piece 15B can be delayed. Accordingly, it is possible to smoothly perform the operation of overlapping the two end walls 14 and 15 while crossing them.

また、本実施形態に係る包装箱１では、底壁１０の幅方向の寸法（ｗ１）が各側壁１１Ａ，１１Ｂの高さ（ｈ１）よりも短いため、各端壁１４，１５の延出寸法（ｗ２，ｗ３）も各側壁１１Ａ，１１Ｂの高さ（ｈ１）よりも短くなっていた（図２参照）。この構成によれば、各端壁１４，１５の延出寸法（ｗ２，ｗ３）を短く抑えることができるため、ブランク２に必要な段ボールシートの面積を小さくすることができる。これにより、包装箱１の製造コストを削減することができる。 Moreover, in the packaging box 1 which concerns on this embodiment, since the dimension (w1) of the width direction of the bottom wall 10 is shorter than the height (h1) of each side wall 11A, 11B, the extension dimension of each end wall 14,15. (W2, w3) was also shorter than the height (h1) of each side wall 11A, 11B (see FIG. 2). According to this structure, since the extension dimension (w2, w3) of each end wall 14 and 15 can be restrained short, the area of the cardboard sheet required for the blank 2 can be made small. Thereby, the manufacturing cost of the packaging box 1 can be reduced.

なお、本実施形態に係る包装箱１では、第２下側片１５Ｂが第２上側片１５Ａよりも幅方向に短く形成され、且つ異なる形状であったが、本考案はこれに限定されない。例えば、第２上側片と第２下側片とが幅方向に同一寸法に形成されていてもよい（図示せず）。また、第２上側片と第２下側片とが上下対称に形成されていてもよい（図示せず）。 In the packaging box 1 according to the present embodiment, the second lower piece 15B is formed shorter in the width direction than the second upper piece 15A and has a different shape, but the present invention is not limited to this. For example, the second upper piece and the second lower piece may be formed in the same dimension in the width direction (not shown). Further, the second upper piece and the second lower piece may be formed vertically symmetrical (not shown).

また、本実施形態に係る包装箱１では、第１溝２０と第２溝３０とが異なる形状であったが、本考案はこれに限定されない。例えば、第１溝と第２溝とが同一形状であってもよい（図示せず）。 Moreover, in the packaging box 1 which concerns on this embodiment, although the 1st groove | channel 20 and the 2nd groove | channel 30 were different shapes, this invention is not limited to this. For example, the first groove and the second groove may have the same shape (not shown).

また、本実施形態に係る包装箱１では、第１上側片１４Ａが第２上側片１５Ａの外面に重なり、第１下側片１４Ｂが第２下側片１５Ｂの内面に重なっていたが、本考案はこれに限定されない。第１端壁１４と第２端壁１５との交差方向を逆にして、第１上側片１４Ａが第２上側片１５Ａの内面に重ねられ、第１下側片１４Ｂが第２下側片１５Ｂの外面に重ねられてもよい。 In the packaging box 1 according to the present embodiment, the first upper piece 14A overlaps the outer surface of the second upper piece 15A, and the first lower piece 14B overlaps the inner surface of the second lower piece 15B. The idea is not limited to this. The crossing direction of the first end wall 14 and the second end wall 15 is reversed, the first upper piece 14A is superimposed on the inner surface of the second upper piece 15A, and the first lower piece 14B is the second lower piece 15B. May be overlaid on the outer surface.

また、本実施形態に係る包装箱１では、各端壁１４，１５の延出寸法（ｗ２，ｗ３）が、底壁１０の幅方向の寸法（ｗ１）と略同一になっていたが、本考案はこれに限定されない。２枚の端壁１４，１５の延出寸法（ｗ２，ｗ３）の両方、または何れか一方が、底壁１０の幅方向の寸法（ｗ１）よりも短く設定されていてもよい。この場合、２枚の端壁１４，１５が互いに交差し、且つ重なり合う延出寸法とすることが好ましい。 Moreover, in the packaging box 1 which concerns on this embodiment, although the extension dimension (w2, w3) of each end wall 14 and 15 was substantially the same as the dimension (w1) of the width direction of the bottom wall 10, this book The idea is not limited to this. Both or one of the extension dimensions (w2, w3) of the two end walls 14, 15 may be set shorter than the dimension (w1) of the bottom wall 10 in the width direction. In this case, it is preferable that the two end walls 14 and 15 extend and overlap each other.

また、本実施形態に係る包装箱１では、ブランク２に用いる段ボールシートの面積を小さくするために、底壁１０や各端壁１４，１５の延出寸法（ｗ１，ｗ２，ｗ３）が各側壁１１Ａ，１１Ｂの高さ（ｈ１）よりも短くなっていたが（図２参照）、本考案はこれに限定されない。例えば、内容物の大きさ等に応じて、底壁１０や各端壁１４，１５の延出寸法（ｗ１，ｗ２，ｗ３）を各側壁１１Ａ，１１Ｂの高さ（ｈ１）と同一または長くしてもよい。 Moreover, in the packaging box 1 which concerns on this embodiment, in order to reduce the area of the corrugated cardboard sheet | seat used for the blank 2, the extended dimension (w1, w2, w3) of the bottom wall 10 and each end wall 14 and 15 is each side wall. Although it has become shorter than the height (h1) of 11A and 11B (refer FIG. 2), this invention is not limited to this. For example, the extension dimensions (w1, w2, w3) of the bottom wall 10 and the end walls 14, 15 are made equal to or longer than the height (h1) of the side walls 11A, 11B depending on the size of the contents. May be.

また、本実施形態に係る包装箱１は、紙製の段ボールシートで形成されていたが、これに限らず、厚紙や樹脂製のシート等で形成されていてもよい。 Moreover, although the packaging box 1 which concerns on this embodiment was formed with the paper-made cardboard sheets, it may not be restricted to this but may be formed with the cardboard, resin-made sheets, etc.

なお、上記実施形態の説明は、本考案に係る包装箱の一態様を示すものであって、本考案の技術範囲は、上記実施形態に限定されるものではない。 In addition, description of the said embodiment shows the one aspect | mode of the packaging box based on this invention, Comprising: The technical scope of this invention is not limited to the said embodiment.

１包装箱
１Ｕ上面開口部
１０底壁
１１Ａ，１１Ｂ側壁
１２天壁
１３差込片
１４第１端壁
１４Ａ第１上側片
１４Ｂ第１下側片
１５第２端壁
１５Ａ第２上側片
１５Ｂ第２下側片
１６内フラップ
２０第１溝
２０Ａ，３０Ａ最奥部
２１第１切断線
３０第２溝
３１第２切断線 DESCRIPTION OF SYMBOLS 1 Packaging box 1U Upper surface opening part 10 Bottom wall 11A, 11B Side wall 12 Top wall 13 Insertion piece 14 1st end wall 14A 1st upper piece 14B 1st lower piece 15 2nd end wall 15A 2nd upper piece 15B 2nd Lower piece 16 Inner flap 20 First groove 20A, 30A Innermost part 21 First cutting line 30 Second groove 31 Second cutting line

Claims

The bottom wall (10),
A pair of side walls (11A, 11B) provided in a standing posture at both ends in the width direction of the bottom wall;
A first end wall (14) provided in a state extending from a side end portion of one of the side walls toward the other side wall;
A second end wall (15) provided in a state extending from the side end portion of the other side wall toward the one side wall,
In the first end wall,
A first groove (20) cut out from the distal end toward the proximal end, the second end wall being inserted while intersecting with the first end wall;
A first cutting line (21) cut from the innermost part (20A) of the first groove toward the base end of the first end wall; and
In the second end wall,
A second groove (30) that is cut from its distal end toward the proximal end, and is inserted while the first end wall intersects and overlaps the second end wall;
The second end wall is further cut from the innermost part (30A) of the second groove toward the base end of the second end wall, and the first end wall and the second end wall are inserted into each other. A packaging box (1), characterized in that a second cutting line (31) meshing with one cutting line is provided.

2. The packaging box according to claim 1, wherein each of the first groove and the second groove is formed so as to gradually become narrower from a distal end toward a proximal end.

An inner flap (16) provided in an inwardly extending state from the upper end of the first end wall;
A top wall (12) extending from the upper end of the other side wall toward the one side wall and overlapping the inner flap to close the upper surface opening (1U) between the pair of side walls;
The insertion piece (13) that extends downward from the tip of the top wall and is inserted between the one side wall and the inner flap is further provided. Packaging box.

The first end wall is
A first upper piece (14A) formed above the first groove and connected to the inner flap;
A first lower piece (14B) formed below the first groove,
The second end wall is
A second upper piece (15A) formed above the second groove;
A second lower piece (15B) formed below the second groove and shorter in the width direction than the second upper piece,
In a state where the first end wall and the second end wall are inserted into each other, the first upper piece overlaps the outer surface of the second upper piece, and the first lower piece is the second lower piece. The packaging box according to claim 3, wherein the packaging box overlaps with an inner surface.

The packaging box according to any one of claims 1 to 4, wherein a dimension of the bottom wall in a width direction is shorter than a height of the side wall.