JP5403591B2

JP5403591B2 - Packaging box

Info

Publication number: JP5403591B2
Application number: JP2009063624A
Authority: JP
Inventors: 裕之戸田
Original assignee: Naris Cosmetics Co Ltd
Current assignee: Naris Cosmetics Co Ltd
Priority date: 2009-03-16
Filing date: 2009-03-16
Publication date: 2014-01-29
Anticipated expiration: 2029-03-16
Also published as: JP2010215263A

Description

本発明は、包装箱、より具体的に言うと、購入時に開封したことが一見して判別することができる包装箱に関する。 The present invention relates to a packaging box, and more specifically, to a packaging box that can be determined at a glance that it has been opened at the time of purchase.

近年、商品売り場等において、異物を混入し、あたかも未開封のように見せかけるという事態が生じている。これを防ぐため、種々の改ざん防止用包装箱が提案されている。 In recent years, there has been a situation in which a foreign object is mixed in a merchandise department and looks as if unopened. In order to prevent this, various tamper-proof packaging boxes have been proposed.

例えば、特開２００３−１３７２７７号公報（特許文献１）には、左右の内フラップが切断可能に箱本体上部の開口に備えられ、両内フラップが天面裏面に接着された構造の包装箱が開示されている。この包装箱では、天面を開くと左右の内フラップが切断される。 For example, Japanese Patent Application Laid-Open No. 2003-137277 (Patent Document 1) discloses a packaging box having a structure in which left and right inner flaps are provided in an opening at the top of a box body so that both inner flaps are bonded to the back of the top surface. It is disclosed. In this packaging box, the left and right inner flaps are cut when the top surface is opened.

特開２００３−３２７２４２号公報（特許文献２）には、天面と差込フラップを仕切る折り目線上に切れ目が備えられるとともに、箱本体正面に破断線が設けられ、この破断線で囲まれた部分から上方に延設した差し込み片が設けられた包装箱が開示されている。この包装箱では、天面と差込フラップを仕切る折り目線上の切れ目に差み込み片が挿入されるので、天面を開く際に破断線が破られる。 Japanese Patent Laid-Open No. 2003-327242 (Patent Document 2) is provided with a cut line on a crease line that partitions the top surface and the insertion flap, a break line is provided on the front surface of the box body, and the part surrounded by the break line There is disclosed a packaging box provided with an insertion piece extending upward. In this packaging box, since the insertion piece is inserted into the cut on the crease line that partitions the top surface and the insertion flap, the breaking line is broken when the top surface is opened.

特開２００４−２６９０３１号公報（特許文献３）には、差込プラップが天面に切断可能に備えられるとともに、天面と差込フラップの接続部分に切れ目が設けられ、左右の内プラップの一方に当該切れ目に差し込み可能な突起が設けられた包装箱が開示されている。この包装箱では、内フラップの突起が切れ目に挿入されているので、天面を開く際に差込フラップが切り取られる。 Japanese Patent Application Laid-Open No. 2004-269031 (Patent Document 3) includes an insertion flap that can be cut on the top surface, and a cut is provided at a connection portion between the top surface and the insertion flap, and one of the left and right inner flaps is provided. Discloses a packaging box provided with a protrusion that can be inserted into the cut. In this packaging box, since the projection of the inner flap is inserted into the cut, the insertion flap is cut off when the top surface is opened.

特開２００３−１３７２７４号公報（特許文献４）には、箱本体上部の開口を閉じる天面と、当該天面の裏面と糊付けされる外受けフラップを有し、天面に切断予定部が備えられた包装箱が開示されている。この包装箱では、切断予定部を切断して開封する。 Japanese Patent Application Laid-Open No. 2003-137274 (Patent Document 4) has a top surface that closes the upper opening of the box body, and an outer flap that is glued to the back surface of the top surface, and the top surface includes a scheduled cutting portion. Disclosed packaging boxes are disclosed. In this packaging box, the planned cutting part is cut and opened.

特開２００３−１６５５２９号公報（特許文献５）には、天面と差込フラップを仕切る折り目線上の両端近傍及びその中央に切り目が設けられ、左右の内フラップに前記両端の切れ目に挿入される突起が備えられるとともに、前記折り目線の中央切れ目に挿入される差込片が箱本体の開口に延設された包装箱が開示されている。 In Japanese Patent Laid-Open No. 2003-165529 (Patent Document 5), notches are provided in the vicinity of the both ends of the fold line that divides the top surface and the insertion flap and in the center thereof, and inserted into the left and right inner flaps at the cuts at the both ends. A packaging box is disclosed in which a protrusion is provided and an insertion piece to be inserted into the central cut of the crease line is extended to the opening of the box body.

この包装箱では、左右内フラップに設けられた突起が切れ目に挿入されるので蓋がしっかりと固定され、開封時には差込片が損傷されるか、箱がくずれ、改ざんが容易に判別される。 In this packaging box, since the protrusions provided on the left and right inner flaps are inserted into the cuts, the lid is firmly fixed, and when opening, the inserted piece is damaged or the box is broken and tampering is easily determined.

特開２００３−１３７２７７号公報JP 2003-137277 A 特開２００３−３２７２４２号公報JP 2003-327242 A 特開２００４−２６９０３１号公報JP 2004-269031 A 特開２００３−１３７２７４号公報JP 2003-137274 A 特開２００３−１６５５２９号公報JP 2003-165529 A

しかしながら、特許文献１の包装箱では天面と内フラップを、特許文献４の包装箱では天面と外受けフラップをそれぞれ糊付けする必要があり、組み立てが面倒である。 However, it is necessary to glue the top surface and the inner flap in the packaging box of Patent Document 1 and the top surface and the outer flap in the packaging box of Patent Document 4, and the assembly is troublesome.

一方、特許文献２や特許文献３、特許文献５の包装箱ではそれぞれ切れ目に差込片を挿入する必要があり、やはり組み立てに手間を要するという問題点があった。 On the other hand, in the packaging boxes of Patent Document 2, Patent Document 3, and Patent Document 5, it is necessary to insert the insertion piece at each cut, and there is a problem in that it takes time to assemble.

本発明は上記の背景技術に鑑みてなされたものであって、本発明の目的は組み立て時の手間を少なくした改ざん防止用の包装箱を提供することにある。 The present invention has been made in view of the above-described background art, and an object of the present invention is to provide a packaging box for preventing tampering with less labor during assembly.

そこで、本発明では、天面に所定形状の切欠きからなる取付部を形成し、当該取付部内において天面に備えられる取付片と、当該取付片の先端に備えられかつ当該取付片の先端両側において前記天面と切り離された差込片とからなる差込フラップを備えた上で、前記取付片の左右の縁上の点を端点とする破断線を差込フラップに形成すると共に、前記差込フラップの取付片を係止部の上方から下方に交差させて、差込フラップの取付片の後端縁を当該内フラップの下面に位置させる切欠きからなる係止部を内フラップに設けている。 Therefore, in the present invention, a mounting portion made of a notch having a predetermined shape is formed on the top surface, the mounting piece provided on the top surface in the mounting portion, the tip of the mounting piece and both sides of the tip of the mounting piece And forming a break line in the insertion flap with points on the left and right edges of the mounting piece as the end points. The inner flap is provided with a latching portion made of a notch that crosses the mounting piece of the insertion flap from the upper side to the lower side of the locking portion and positions the rear end edge of the insertion piece of the insertion flap on the lower surface of the inner flap. Yes.

この包装箱において、天面と取付片の接続位置において山折りされる折り目線を設け、この折り目線で山折りすれば、当該係止部内で取付片と内フラップを交差させて封緘できる。そうすると、内フラップの下面に差込フラップの差込片の後端縁が位置した状態で包装箱が封緘される。 In this packaging box, if a crease line is provided at the connection position of the top surface and the attachment piece, and the crease line is folded at the crease line, the attachment piece and the inner flap can be crossed and sealed in the locking portion. Then, the packaging box is sealed with the rear end edge of the insertion piece of the insertion flap positioned on the lower surface of the inner flap.

また、取付片と差込片の接続位置において山折りされる折り目線を設け、この折り目線で山折りすれば、改ざん防止措置がなされていない通常の包装箱と同じように封緘できる。そして、封緘した後に、取付片の前方位置を押し下げるようにすると、内フラップの下面に差込フラップの差込片の後端縁が位置した状態で包装箱が封緘される。 Further, if a fold line is provided at the connection position between the attachment piece and the insertion piece, and the fold line is folded at the crease line, the package can be sealed in the same manner as a normal packaging box that has not been tampered with. When the front position of the attachment piece is pushed down after sealing, the packaging box is sealed with the rear end edge of the insertion piece of the insertion flap positioned on the lower surface of the inner flap.

そして、開封のために天面を持ち上げると、差込片は上方に移動しようとするが内フラップの開く角度が天面の持ち上がり角度より小さいので、差込片の上方への移動が制限される。一方、取付片は天面と共に持ち上げられるので、破断線には取付片による上向きの力が働き、差込片による下向きの力が働く。この結果、差込フラップに形成された破断線が破断される。 When the top surface is lifted for opening, the insertion piece tries to move upward, but the opening angle of the inner flap is smaller than the lifting angle of the top surface, so the upward movement of the insertion piece is restricted. . On the other hand, since the attachment piece is lifted together with the top surface, an upward force by the attachment piece acts on the break line, and a downward force by the insertion piece acts. As a result, the break line formed in the insertion flap is broken.

本発明の包装箱では、組み立て時に糊付けしたり、差込片を切れ目に挿入したりすることなく、簡単に組み立てられる。また、開封時には天面を開封すれば、差込フラップが切断され、開封されたことがすぐにわかる。 The packaging box of the present invention can be easily assembled without gluing at the time of assembly or without inserting the insertion piece into the cut. In addition, if the top surface is opened at the time of opening, the insertion flap is cut and it is immediately known that the opening has been opened.

図１は本発明の包装箱の斜視図である。FIG. 1 is a perspective view of the packaging box of the present invention. 図２は図１の包装箱の展開図である。FIG. 2 is a development view of the packaging box of FIG. 図３は封をした包装箱の平面図である。FIG. 3 is a plan view of the sealed packaging box. 図４は図３のＡＡ線断面図である。4 is a cross-sectional view taken along line AA in FIG. 図５は図３のＢＢ線断面図である。5 is a cross-sectional view taken along line BB in FIG. 図６は図１の包装箱を開封する様子を示す説明図である。FIG. 6 is an explanatory view showing a state where the packaging box of FIG. 1 is opened. 図７は本発明の別の実施形態に係る包装箱を一部破断した展開図である。FIG. 7 is a developed view in which a packaging box according to another embodiment of the present invention is partially broken. 図８は本発明のさらに別な実施形態に係る包装箱を一部破断した展開図である。FIG. 8 is a developed view in which a packaging box according to still another embodiment of the present invention is partially broken. 図９は本発明のさらに別な実施形態に係る包装箱を一部破断した展開図である。FIG. 9 is a development view in which a packaging box according to still another embodiment of the present invention is partially broken. 図１０は本発明のさらに別な実施形態に係る包装箱を一部破断した展開図である。FIG. 10 is a development view in which a packaging box according to still another embodiment of the present invention is partially broken. 図１１は本発明のさらに別な実施形態に係る包装箱の展開図である。FIG. 11 is a developed view of a packaging box according to still another embodiment of the present invention. 図１２は本発明のさらに別な実施形態に係る包装箱の斜視図である。FIG. 12 is a perspective view of a packaging box according to still another embodiment of the present invention. 図１３は本発明のさらに別な実施形態に係る包装箱の斜視図である。FIG. 13 is a perspective view of a packaging box according to still another embodiment of the present invention. 図１４は図１３の包装箱を一部破断した展開図である。FIG. 14 is a developed view in which the packaging box of FIG. 13 is partially broken. 図１５は封をした包装箱の平面図である。FIG. 15 is a plan view of the sealed packaging box. 図１６は図１５のＢＢ線断面図である。16 is a cross-sectional view taken along line BB in FIG. 図１７は本発明のさらに別な実施形態に係る包装箱を一部破断した展開図である。FIG. 17 is a development view in which a packaging box according to still another embodiment of the present invention is partially broken.

本発明の包装箱は、内フラップの前縁と箱本体上部の開口前縁との間に差込フラップを差し込むタイプの包装箱において、開封時に天面を持ち上げることによって差込フラップを切断するようにした包装箱である。この包装箱は内フラップに所定形状の切欠きが備えられ、この切欠きを利用することにより内フラップ下面に差込フラップの端面を位置させ、開封動作により差込フラップを切断する構造を有する。 The packaging box of the present invention is a type of packaging box in which the insertion flap is inserted between the front edge of the inner flap and the opening front edge of the upper part of the box body, so that the insertion flap is cut by lifting the top surface when opened. This is a packaging box. This packaging box has a structure in which a notch having a predetermined shape is provided in the inner flap, and by using this notch, the end face of the insertion flap is positioned on the lower surface of the inner flap, and the insertion flap is cut by an opening operation.

具体的には、本発明の包装箱は、箱本体の開口を塞ぐ天面と、天面が備えられた開口縁に隣接する左右開口縁の少なくとも一方の開口縁に備えられた内フラップと、当該内フラップの前縁と前記開口の前縁との間に差し込まれる差込フラップとを備えた包装箱であって、前記天面は、前縁から当該天面と前記開口縁の折り目線に向かう左右一対の切断線の少なくとも一部を周縁の一部とする切欠きからなる取付部を有し、前記差込フラップは、前記開口の前縁と略平行となる接続線によって前記取付部内において前記天面に備えられた取付片と、当該取付片の先端に備えられ、前記取付部の前縁幅よりも広い幅を有し、前記取付片の先端両側において前記天面と切り離された差込片とを有し、かつ、当該差込フラップは前記取付片の左右の縁上の点を端点とする破断線を備え、前記内フラップは、前記取付片を当該内フラップの上方から下方に交差させ、前記差込片の後端縁（山折りされた後には上端縁となる。）を当該内フラップの下面に位置させる切欠きからなる係止部を有する。 Specifically, the packaging box of the present invention includes a top surface that closes the opening of the box body, an inner flap provided on at least one opening edge of the left and right opening edges adjacent to the opening edge provided with the top surface, A packaging box provided with an insertion flap inserted between the front edge of the inner flap and the front edge of the opening, wherein the top surface extends from the front edge to the crease line of the top surface and the opening edge. A mounting portion formed of a notch having at least a part of a pair of left and right cutting lines facing as a part of a peripheral edge, and the insertion flap is formed in the mounting portion by a connection line substantially parallel to the front edge of the opening. A mounting piece provided on the top surface and a difference provided on the front end of the mounting piece, having a width wider than the front edge width of the mounting portion, separated from the top surface on both sides of the front end of the mounting piece. And the insertion flaps have left and right edges of the mounting piece. The inner flap has a rear end edge (the upper end edge after being mountain-folded) that intersects the mounting piece downward from above the inner flap. .)) Is provided on the lower surface of the inner flap.

この包装箱にあっては、２つの態様が考えられる。一つは、取付部内において、天面と取付片の接続位置において山折りする折り目線を設け、この山折り線で山折りして封緘し、差込片の後端縁を内フラップの下面に位置させる。もう一つは、取付片と差込片の接続位置において山折りする折り目線を設け、この山折り線で山折りして封緘する。この状態では、これまで一般的に用いられている差込フラップを備えた包装箱と同じである。この状態から、取付片の前方位置を下に押し込むようにして、差込片の後端縁を内フラップの下面に位置させる。このように本発明の包装箱は２つの態様がある。以下、本発明について図面を参照しながら詳細に説明する。 There are two possible modes for this packaging box. One is a crease line that folds at the connection position between the top surface and the mounting piece in the mounting portion, and folds and seals at the mountain fold line, and the rear edge of the insertion piece is placed on the lower surface of the inner flap. Position. The other is provided with a crease line that folds at the connecting position of the attachment piece and the insertion piece, and the fold line is folded at this mountain fold line and sealed. In this state, it is the same as the packaging box provided with the insertion flap generally used until now. From this state, the rear end edge of the insertion piece is positioned on the lower surface of the inner flap such that the front position of the attachment piece is pushed downward. Thus, the packaging box of this invention has two aspects. Hereinafter, the present invention will be described in detail with reference to the drawings.

図１は本発明の一実施形態である包装箱１の斜視図、図２は当該包装箱１の展開図である。図１に示す包装箱１は、本発明の第１の実施形態について示すものであり、取付片３１と天面２１の接続位置で山折りされる。展開図には原則として紙面の裏面側に山折りされる山折り線が一点鎖線で示され、破断線と重複する場合には破線で示されている。この包装箱１は、箱本体１０と、箱本体１０の上部開口１１の蓋となる天面２１と、天面２１が備えられた開口縁に隣接する開口縁に備えられた２つの内フラップ、つまり左内フラップ４１及び右内フラップ４２と、箱本体１０の下部開口１１の蓋となる４つの底フラップ２７を有している。箱本体１０は、連続する４つの側面２６と一つののりしろ片２８とから構成される。包装箱１は、打ち抜き加工等によって展開図に示す状態で作製された一枚の紙状片２０から組み立てられる。この紙状片２０は、可撓性を有する紙やプラスチックシートから作製される。なお、以下においては、組み立てた際に山折りされた差込片３２の正面が見える面を前面とし、前面側に位置する方を前方、前面に対して左右の方向を幅方向、この幅方向に対して垂直な方向（前後方向、鉛直方向を問わず）を長さ方向として説明する。また、各内フラップ４１（４２）については、箱本体１０との折り目線１４から離れた位置にある縁を前縁として説明する。 FIG. 1 is a perspective view of a packaging box 1 according to an embodiment of the present invention, and FIG. 2 is a development view of the packaging box 1. The packaging box 1 shown in FIG. 1 is shown about the 1st Embodiment of this invention, and is mountain-folded in the connection position of the attachment piece 31 and the top | upper surface 21. FIG. In the developed view, as a general rule, a mountain fold line that is folded on the back side of the paper surface is indicated by a one-dot chain line, and when it overlaps a fracture line, it is indicated by a broken line. The packaging box 1 includes a box body 10, a top surface 21 serving as a lid for the upper opening 11 of the box body 10, and two inner flaps provided at the opening edge adjacent to the opening edge provided with the top surface 21, That is, it has the left inner flap 41 and the right inner flap 42 and the four bottom flaps 27 that serve as the lid of the lower opening 11 of the box body 10. The box body 10 is composed of four continuous side surfaces 26 and one margin piece 28. The packaging box 1 is assembled from a single sheet-like piece 20 produced in the state shown in the development view by punching or the like. The paper piece 20 is made of a flexible paper or plastic sheet. In the following description, the front side is the front side of the insertion piece 32 that is folded in the mountain when assembled, the front side is the front side, the left-right direction with respect to the front side is the width direction, and this width direction. The direction perpendicular to the direction (regardless of the front-rear direction or the vertical direction) will be described as the length direction. Moreover, about each inner flap 41 (42), the edge in the position away from the crease line 14 with the box main body 10 is demonstrated as a front edge.

天面２１は、組み立て時に背面に位置する側面２６の上辺（開口１１の背面側にある開口縁）に備えられ、折り目線１４で山折りされる。天面２１には、開口１１の前面側にある開口縁のほぼ中央付近に位置する等脚台形状の切り欠きからなる取付部２２が形成されている。この取付部２２は、天面２１の先端（前縁）から折り目線１４に向けて略ハの字形状をなす長さの等しい左右の一対の切断線２３と、天面２１と開口縁との折り目線１４側の端点、つまり一対の切断線２３の終点イを結ぶ線１５で囲まれ、左右一対の切断線２３が取付部２２の周縁の一部となっている。また、前記切断線２３の終点イを結ぶ線１５は、前面側の開口縁と略平行であり、天面２１との接続線となっている。この終点イを結ぶ線１５は、山折りされる折り目線１６として利用される。 The top surface 21 is provided on the upper side (opening edge on the back side of the opening 11) of the side surface 26 located on the back surface during assembly, and is mountain-folded along the crease line 14. On the top surface 21, an attachment portion 22 is formed that is formed of an isosceles trapezoidal notch located near the center of the opening edge on the front side of the opening 11. The attachment portion 22 includes a pair of left and right cutting lines 23 having a substantially C shape from the tip (front edge) of the top surface 21 toward the crease line 14, and a top surface 21 and an opening edge. An end point on the crease line 14 side, that is, a line 15 connecting the end points A of the pair of cutting lines 23, is surrounded by a pair of left and right cutting lines 23 that constitute a part of the peripheral edge of the attachment portion 22. The line 15 connecting the end points A of the cutting line 23 is substantially parallel to the opening edge on the front surface side and is a connection line to the top surface 21. A line 15 connecting the end points A is used as a crease line 16 that is folded in a mountain.

差込フラップ３０は、天面２１の取付部２２内に備えられた取付片３１と、取付部２２の前縁位置に相当する取付片３１の先端に備えられた差込片３２とからなる。取付片３１は左右一対の切断線２３の終点イを結ぶ線１５（折り目線１６）を取り付け位置として天面２１に備えられている。取付片３１の形状は取付部２２の形状とほぼ同じであり、取付部２２の周縁をなす切断線２３によって天面２１と取付片３１が切り離された形状となっている。 The insertion flap 30 includes an attachment piece 31 provided in the attachment portion 22 of the top surface 21 and an insertion piece 32 provided at the tip of the attachment piece 31 corresponding to the front edge position of the attachment portion 22. The attachment piece 31 is provided on the top surface 21 with the line 15 (fold line 16) connecting the end points A of the pair of left and right cutting lines 23 as an attachment position. The shape of the attachment piece 31 is substantially the same as the shape of the attachment portion 22, and the top surface 21 and the attachment piece 31 are separated by a cutting line 23 that forms the periphery of the attachment portion 22.

差込片３２はほぼ矩形状をしており、その幅は開口１１の内法長さとほぼ同じである。差込片３２は、取付片３１の先端において取付片３１と連接され、取付片３１への取付線１８の両側に伸びる切断線１７によって天面２１の先端と切り離されている。 The insertion piece 32 has a substantially rectangular shape, and its width is substantially the same as the inner length of the opening 11. The insertion piece 32 is connected to the attachment piece 31 at the tip of the attachment piece 31, and is separated from the tip of the top surface 21 by cutting lines 17 extending on both sides of the attachment line 18 to the attachment piece 31.

言い換えると、実施例１の包装箱１は、天面の前縁の幅方向とほぼ等しい幅を有する差込フラップを有する一般的によく知られている構造をした包装箱において、天面と差込フラップの折り目線上にその左右両側から、差込フラップが切断されないように切れ込みを入れ、当該切れ込みの終端から天面に略ハの字形状をした左右一対の切断線２３を設けたのと同様である。そして、この切断線２３の終点イを結ぶ線１５で山折りしている。 In other words, the packaging box 1 of the first embodiment is different from the top surface in a packaging box having a generally well-known structure having an insertion flap having a width substantially equal to the width direction of the front edge of the top surface. It is the same as providing a pair of left and right cutting lines 23 having a substantially square shape on the top surface from the end of the notch on the fold line of the insert flap so that the insertion flap is not cut from both left and right sides. It is. Then, the mountain is folded at a line 15 connecting the end points A of the cutting line 23.

差込フラップ３０は開封時に切断される破断線１２を有している。この破断線１２は、開封されることにより切断され、開封されたことが分かる目印となる。破断線１２は取付片３１の左右の周縁上の点、つまり天面２１と取付片３１とを切断する左右の切断線２３上の点を端点とする。本発明では、破断線１２は以下の実施例において示すように取付片３１の左右の周縁上の点を端点としていればよく、直線状、曲線状、蛇行状など任意の態様に設けることができるが、切断されやすさの観点からすると、開口１１の前面開口縁と平行な直線部を有する態様にするのが好ましい。実施例１の破断線１２は、取付片３１と差込片３２との取付線１８上に設けられている。 The insertion flap 30 has a breaking line 12 that is cut when opened. The break line 12 is cut by being opened, and serves as a mark indicating that the opening has been opened. The break line 12 has a point on the left and right peripheral edges of the mounting piece 31, that is, a point on the left and right cutting line 23 that cuts the top surface 21 and the mounting piece 31. In the present invention, as shown in the following embodiments, the breaking line 12 may be provided with any point on the left and right peripheral edges of the mounting piece 31 as an end point, and can be provided in any form such as a straight line, a curved line, or a meandering shape. However, from the viewpoint of ease of cutting, it is preferable to have an aspect having a straight line portion parallel to the front opening edge of the opening 11. The break line 12 of the first embodiment is provided on the attachment line 18 between the attachment piece 31 and the insertion piece 32.

この包装箱１には、左の開口縁に備えられる左内フラップ４１と、右の開口縁に備えられる右内フラップ４２の２つの内フラップ４１（４２）が備えられている。左内フラップ４１は開口縁への取付部位である折り目線４３にて山折りされ、右内フラップ４２は開口縁への取付部位である折り目線４４にて山折りされる。左内フラップ４１と右内フラップ４２はほぼ同じ大きさを有し、左内フラップ４１の先端縁４１ａの長さが折り目線４３の長さに比べて短く、また右内フラップ４２の先端縁４２ａの長さが折り目線４４の長さに比べて短くなった略台形状に作製されている。このとき、その前縁における幅は開口１１の幅よりもわずかに短く、両内フラップ４１（４２）の前縁において幅方向のほぼ全域が重なるように両内フラップ４１（４２）が作製されている。左右の内フラップ４１（４２）の前方側にある側縁は箱本体１０の前方開口縁の近傍に位置し、当該側縁と箱本体１０の前方開口縁との間に前記差込フラップ３０の差込片３２が差し込まれる。 The packaging box 1 is provided with two inner flaps 41 (42) including a left inner flap 41 provided at the left opening edge and a right inner flap 42 provided at the right opening edge. The left inner flap 41 is mountain-folded at a crease line 43 that is an attachment part to the opening edge, and the right inner flap 42 is mountain-folded at a crease line 44 that is an attachment part to the opening edge. The left inner flap 41 and the right inner flap 42 have substantially the same size, the length of the leading edge 41a of the left inner flap 41 is shorter than the length of the crease line 43, and the leading edge 42a of the right inner flap 42 Is made in a substantially trapezoidal shape with a length shorter than that of the crease line 44. At this time, the width at the front edge is slightly shorter than the width of the opening 11, and the both inner flaps 41 (42) are produced so that almost the entire area in the width direction overlaps at the front edges of the both inner flaps 41 (42). Yes. The side edge on the front side of the left and right inner flaps 41 (42) is located in the vicinity of the front opening edge of the box body 10, and the insertion flap 30 is between the side edge and the front opening edge of the box body 10. The insertion piece 32 is inserted.

左内フラップ４１と右内フラップ４２の両者が重なる領域には、それぞれその前縁中央に切欠きからなる係止部４５が形成されている。この係止部４５は、組み立て時に差込フラップ３０の取付片３１を上方から下方に交差させる役目を有する。この係止部４５があるので、両内フラップ４１（４２）の下面に差込片３２を位置させることができる。従って、組み立て時において、左内フラップ４１の切欠き位置と右フラップ４２の切欠き位置はほぼ重なる位置にあり、２つの切欠きの前縁は、箱本体１０の幅方向においては、取付片３１の差込片３２への取り付け位置とほぼ同じ位置にある。 In the region where both the left inner flap 41 and the right inner flap 42 overlap, a locking portion 45 made of a notch is formed at the center of the front edge. The locking portion 45 serves to cross the attachment piece 31 of the insertion flap 30 from the upper side to the lower side during assembly. Since the locking portion 45 is provided, the insertion piece 32 can be positioned on the lower surfaces of the inner flaps 41 (42). Therefore, at the time of assembly, the notch position of the left inner flap 41 and the notch position of the right flap 42 are substantially overlapped, and the front edge of the two notches is the attachment piece 31 in the width direction of the box body 10. It is in the position substantially the same as the attachment position to the insertion piece 32.

図１に示す係止部４５となる切欠きは、前縁から天面２１と開口縁の折り目線１４方向に向かって間隔が広がる略逆ハの字形状をなす長さの等しい左右一対の切断線４７を周縁の一部とする等脚台形状に作製されている。図示された係止部４５は、左右の内フラップ４１（４２）の前縁における切欠き幅（図２のＬ１で示される）は、取付片３１の差込片３２への取り付け幅（図２のＬ３で示される）よりも大きく（Ｌ１＞Ｌ３）、切断線４７の端点（終点）同士を結ぶ直線４８の長さ（幅）（Ｌ２）は、差込片３２の取り付け幅（Ｌ３）よりもわずかに大きく形成されている（Ｌ２＞Ｌ３）。従って、内フラップの前縁における切欠き幅（Ｌ１）と、切断線４７の端点（終点）同士を結ぶ直線４８の長さ（幅）（Ｌ２）と、差込片３２の取り付け幅（Ｌ３）の関係は、Ｌ２＞Ｌ１＞Ｌ３となる。また、取付片３１の天面２２への取り付け幅（図２のＬＡで示される）は、左右の内フラップ４１（４２）の前縁における切欠き幅（Ｌ１）よりも小さければよい（Ｌ１＞ＬＡ）。 1 is a pair of left and right cuts of equal length that form a substantially inverted C shape with a gap extending from the front edge toward the crease line 14 between the top edge 21 and the opening edge. It is produced in an isosceles trapezoidal shape with the line 47 as a part of the periphery. The illustrated locking portion 45 has a notch width (indicated by L1 in FIG. 2) at the front edge of the left and right inner flaps 41 (42), and the mounting width of the mounting piece 31 to the insertion piece 32 (FIG. 2). The length (width) (L2) of the straight line 48 connecting the end points (end points) of the cutting line 47 is larger than the attachment width (L3) of the insertion piece 32. Is slightly larger (L2> L3). Therefore, the notch width (L1) at the front edge of the inner flap, the length (width) (L2) of the straight line 48 connecting the end points (end points) of the cutting line 47, and the attachment width (L3) of the insertion piece 32 The relationship is L2> L1> L3. Moreover, the attachment width (indicated by LA in FIG. 2) of the attachment piece 31 only needs to be smaller than the notch width (L1) at the front edge of the left and right inner flaps 41 (42) (L1>). LA).

もっとも、係止部４５は、取付片３１を内フラップ４１（４２）の上方から下方に交差させ、差込片３２の後端縁３２ａを内フラップ４１（４２）の下面に位置させておくことができればよい。そこで、係止部４５の前縁における幅は、取付片３１の幅、さらに具体的に言えば、内フラップ４１（４２）を交差させることができる幅を有しさえすればよい。言い変えると、前縁から天面２１と開口縁の折り目線１４方向に向かって左右の切断線４７の幅が広がるか若しく切断線４５が平行である係止部４５の領域内において、取付片３１の折り目線１５で山折りされる前の状態において、当該取付片３１が収まりさえすればよい。従って、取付部２２の形状は、図示されたように略ハの字形状に限られず、図示はしないが、逆ハの字形状になった切断線２３や平行となった切断線２３、円弧状になった切断線２３から取付部２２を構成できる。また、切断線４７の端点（終点）同士を結ぶ直線４８の長さ（幅）（Ｌ２）と、差込片３２の取り付け幅（Ｌ３）がほぼ同じであってもよい。 But the latching | locking part 45 cross | intersects the attachment piece 31 from the upper direction of the inner flap 41 (42) below, and has located the rear-end edge 32a of the insertion piece 32 on the lower surface of the inner flap 41 (42). If you can. Therefore, the width at the front edge of the locking portion 45 only needs to have a width that allows the inner flap 41 (42) to intersect with the width of the mounting piece 31, more specifically. In other words, the width of the left and right cutting lines 47 increases from the front edge toward the top surface 21 and the crease line 14 of the opening edge, or is attached within the region of the locking portion 45 where the cutting lines 45 are parallel. It is only necessary that the mounting piece 31 fits in a state before being folded at the crease line 15 of the piece 31. Therefore, the shape of the attachment portion 22 is not limited to a substantially square shape as shown, and although not shown in the drawing, the cut line 23 having a reverse letter C shape, the parallel cutting line 23, or an arc shape The attachment portion 22 can be configured from the cut line 23 that becomes. Further, the length (width) (L2) of the straight line 48 connecting the end points (end points) of the cutting line 47 and the attachment width (L3) of the insertion piece 32 may be substantially the same.

差込片３２の取り付け幅、つまり破断線１２（取付線１８）の幅が、絶対的な意味において（内フラップ４１（４２）の前縁における切欠き幅（Ｌ１）に関係なく）狭い場合には破断線１２が容易に切除されてしまい包装箱１としての体をなさない虞がある。このため、係止部４５の内フラップ４１（４２）前縁における切欠き幅（幅Ｌ１）やその他切断線４７の方向など、係止部４５の大きさ、形状はこのような虞がないよう、紙状片２０の厚さ等を考慮しながら適宜設計される。 When the attachment width of the insertion piece 32, that is, the width of the breaking line 12 (attachment line 18) is narrow in an absolute sense (regardless of the notch width (L1) at the front edge of the inner flap 41 (42)) There is a possibility that the breaking line 12 is easily cut off and the body as the packaging box 1 is not formed. For this reason, the size and shape of the locking portion 45 such as the notch width (width L1) at the front edge of the inner flap 41 (42) of the locking portion 45 and the direction of the other cutting line 47 do not have such a risk. The thickness is appropriately designed in consideration of the thickness of the paper piece 20 and the like.

係止部４５における切欠きの奥行き、すなわち、天面２１と開口縁の折り目線１４方向に向かう長さ（切欠きの形状である台形の高さに相当）は特に制約はないが、少なくとも山折りされた差込片３２の後端縁３２ａが内フラップ４１（４２）の下面に確実に位置する程度、少なくとも差込片３２の厚み以上の長さは必要である。一方、この奥行きはできるだけ小さい方が好ましい。大きくなると包装箱１を平面視した場合に天面２１に大きく穴が開くことになってしまうからである。また、奥行きが大きくなると開封時に破断線１２が破断されない場合を生じるおそれが強くなる。 The depth of the notch in the locking portion 45, that is, the length of the top surface 21 and the opening edge in the direction of the crease line 14 (corresponding to the height of the trapezoid that is the shape of the notch) is not particularly limited. At least the thickness of the insertion piece 32 is required so that the rear end edge 32a of the folded insertion piece 32 is reliably positioned on the lower surface of the inner flap 41 (42). On the other hand, this depth is preferably as small as possible. This is because when the size is increased, a large hole is formed in the top surface 21 when the packaging box 1 is viewed in plan. Further, when the depth is increased, the possibility that the breaking line 12 is not broken at the time of opening becomes strong.

実施例１の係止部４５は、左内フラップ４１、右内フラップ４２共に、各内フラップ４１（４２）の前縁と平行であって、係止部４５の周縁をなす左右の切断線４７の端点同士を結ぶ線４８から、天面２１と開口縁の折り目線１４方向に向かって膨らむ略等脚台形状をした第２の切欠き４６を有する。この第２の切欠き４６のために、開封時に指が入り易くなり、開封しやすくなっている。この第２の切欠き４６は任意的なものであり、その形状も略等脚台形状に限られず、例えば半円状乃至半楕円状の切欠き４６であっても差し支えない。 In the locking portion 45 of the first embodiment, both the left inner flap 41 and the right inner flap 42 are parallel to the front edge of each inner flap 41 (42), and the left and right cutting lines 47 forming the periphery of the locking portion 45. A second notch 46 having a substantially isosceles trapezoidal shape that swells from the line 48 connecting the end points of the top surface 21 toward the crease line 14 of the opening edge. The second notch 46 makes it easier for a finger to enter during opening, making it easier to open. The second notch 46 is optional, and the shape is not limited to a substantially isosceles trapezoidal shape, and may be a semicircular or semi-elliptical notch 46, for example.

この包装箱１の組み立て方は一般的な包装箱１の組み立て方とほとんど変わらず、箱本体１０の開口１１を塞ぐように、左内フラップ４１及び右内フラップ４２を山折りした後、天面２１を山折りし、さらに差込フラップ３０を取付片３１の天面２１への取り付け位置（折り目線１６）にて山折りし（図６（ａ））、左右の内フラップ４１（４２）の前方側側縁と箱本体１０正面の開口縁との間に差し込む。そうすると、取付片３１と天面２１が折り目線１６で山折りされているので、特に困難無く係止部４５に取付片３１が入り込み、包装箱１が封緘される（同図（ｂ））。 The way of assembling the packaging box 1 is almost the same as the way of assembling the general packaging box 1, and after folding the left inner flap 41 and the right inner flap 42 so as to close the opening 11 of the box body 10, the top surface 21 is folded in a mountain, and the insertion flap 30 is folded in a mountain at the attachment position (fold line 16) to the top surface 21 of the attachment piece 31 (FIG. 6A), and the left and right inner flaps 41 (42) It inserts between a front side edge and the opening edge of the box main body 10 front surface. Then, since the attachment piece 31 and the top surface 21 are folded at the crease line 16, the attachment piece 31 enters the locking portion 45 without any particular difficulty, and the packaging box 1 is sealed ((b) in the figure).

そうして組み立てられた包装箱１を開封する場合には、図６（ｂ）に示す状態から、天面２１を持ち上げると、差込片３２の後端縁３２ａが持ち上げられ、それと共に２つの内フラップ４１（４２）が持ち上げられる。しかしながら、内フラップ４１（４２）の持ち上がり角度は天面２１の持ち上がり角度に比べて抑えられるので、破断線１２には取付片３１による上向きの力と差込片３２による下向きの力が加えられる。そして、その両者の均衡が破られる結果、破断線１２が破断され、同図（ｃ）（ｄ）に示されるように差込片３２が切り離されて開封される。このように一度開封されると、差込フラップ３０が切断された状態になるので、開封されたことが一目で判別できる。 In the case of opening the assembled packaging box 1, when the top surface 21 is lifted from the state shown in FIG. 6B, the rear end edge 32 a of the insertion piece 32 is lifted, and two The inner flap 41 (42) is lifted. However, since the lifting angle of the inner flap 41 (42) is suppressed compared to the lifting angle of the top surface 21, an upward force by the mounting piece 31 and a downward force by the insertion piece 32 are applied to the breaking line 12. Then, as a result of breaking the balance between the two, the breaking line 12 is broken, and the insertion piece 32 is separated and opened as shown in FIGS. Once opened in this way, the insertion flap 30 is cut, so that it can be determined at a glance that it has been opened.

このように本発明の包装箱１では、内フラップ４１（４２）に切欠きからなる係止部４５が備えられているので、組み立て時には差込フラップ３０の取付片３１が係止部４５に入り込み、差込フラップ３０の差込片３２の後端縁３２ａを内フラップ４１（４２）の下面に位置させることができる。その結果、天面２１を持ち上げると、破断線１２には取付片３１による上向きの力と差込片３２による下向きの力が働き、両者のバランスが崩れることによって差込フラップ３０に備えられた破断線１２が破断される。 Thus, in the packaging box 1 of the present invention, since the inner flap 41 (42) is provided with the locking portion 45 formed of a notch, the attachment piece 31 of the insertion flap 30 enters the locking portion 45 during assembly. The rear end edge 32a of the insertion piece 32 of the insertion flap 30 can be positioned on the lower surface of the inner flap 41 (42). As a result, when the top surface 21 is lifted, an upward force due to the attachment piece 31 and a downward force due to the insertion piece 32 act on the breaking line 12, and the balance between the two breaks down and the breaking provided in the insertion flap 30. Line 12 is broken.

以上のように、本発明の包装箱１では、内フラップ４１（４２）の切欠きである係止部４５と、それと係止可能に構成された差込フラップ３０との組み合わせにより、開封操作によって差込フラップ３０を切断可能にしている。このような機能を果たすように、天面２１の切断線１２の方向や長さ、破断線１２の長さ、係止部４５の形状や大きさが適宜設定される。 As described above, in the packaging box 1 of the present invention, the combination of the locking portion 45 that is the notch of the inner flap 41 (42) and the insertion flap 30 that is configured to be locked by the opening portion allows The insertion flap 30 can be cut. The direction and length of the cutting line 12 of the top surface 21, the length of the break line 12, and the shape and size of the locking portion 45 are appropriately set so as to fulfill such a function.

図７は本発明の第２の実施形態である包装箱１を一部破断した展開図である。この包装箱１は実施例１の包装箱１とほぼ同様な構造を有しているが、破断線１２は天面２１の取付部２２の周縁をなす２本の切断線２３の終点イを結ぶ線１５、すなわち、天面２１と取付片３１の折り目線１６上に設けられている。この包装箱１では、開封時には差込フラップ３０全体が切断される。このように破断線１２を２本の切断線２３の終点イを結ぶ線１５上に設け、差込フラップ３０全体を切断させてもよい。この終点イを結ぶ線１５も箱本体１０前面の開口縁と平行となっており、破断されやすい構造となっている。 FIG. 7 is a development view in which the packaging box 1 according to the second embodiment of the present invention is partially broken. The packaging box 1 has substantially the same structure as the packaging box 1 of the first embodiment, but the breaking line 12 connects the end points A of the two cutting lines 23 that form the periphery of the mounting portion 22 of the top surface 21. The line 15 is provided on the crease line 16 of the top surface 21 and the attachment piece 31. In this packaging box 1, the entire insertion flap 30 is cut when opened. In this way, the breaking line 12 may be provided on the line 15 connecting the end points A of the two cutting lines 23, and the entire insertion flap 30 may be cut. The line 15 connecting the end points A is also parallel to the opening edge on the front surface of the box body 10 and is easily broken.

図８は本発明の第３の実施形態である包装箱１を一部破断した展開図である。この包装箱１も実施例１の包装箱１とほぼ同様な構造を有しているが、破断線１２は天面２１の取付部２２の周縁をなす２本の切断線２３上の中間点ロを結ぶ線であってかつ箱本体１０前面の開口縁と平行となっている点で異なる。この包装箱１では、取付片３１の一部が差込片３２とともに切断される。 FIG. 8 is a developed view in which the packaging box 1 according to the third embodiment of the present invention is partially broken. This packaging box 1 also has a structure substantially similar to that of the packaging box 1 of the first embodiment, but the breaking line 12 is a halfway point on the two cutting lines 23 that form the periphery of the mounting portion 22 of the top surface 21. And is parallel to the opening edge of the front surface of the box body 10. In the packaging box 1, a part of the attachment piece 31 is cut together with the insertion piece 32.

図９は本発明の第４の実施形態である包装箱１を一部破断した展開図である。この包装箱１は、天面２１の取付部２２の周縁をなす２本の切断線２３の始点ハを結ぶ線であって、差込片３２の先端側に膨らむ略等脚台形状を形成する線上に破断線１２が備えられている。この破断線１２も破断線１２の一部に箱本体１０前面の開口縁と平行な部分１２ａを有している。この包装箱１では、差込片３２の一部が取付片３１に残り、差込片３２の残る部分が切除される。 FIG. 9 is a developed view in which the packaging box 1 according to the fourth embodiment of the present invention is partially broken. The packaging box 1 is a line connecting the starting points C of two cutting lines 23 that form the periphery of the mounting portion 22 of the top surface 21, and forms a substantially isosceles trapezoidal shape that swells toward the distal end side of the insertion piece 32. A break line 12 is provided on the line. This breaking line 12 also has a portion 12 a parallel to the opening edge of the front surface of the box body 10 at a part of the breaking line 12. In the packaging box 1, a part of the insertion piece 32 remains on the attachment piece 31, and the remaining part of the insertion piece 32 is cut off.

図１０は本発明の第５の実施形態である包装箱１を一部破断した展開図である。この包装箱１は、取付片３１と差込片３２の取付線１８上に破断線１２が設けられているが、取付線１８の中央部分のみが破断線１２となり、破断線１２の両側においては取付片３１と差込片３２とを切り離す切断線１７となっている。このため、実施例２の包装箱１よりも破断線１２が確実に破断される。このように、天面２１の前縁から当該天面２１と前記開口縁の折り目線１４に向かって設けられた左右一対の切断線２３を周縁の一部とする取付部２２内に取付片３１を設け、取付片３１の先端に差込片３２を形成する限り、取付部２２の前縁幅（Ｌ５）と差込片３２の取付片３１への取付線１８の幅（Ｌ４）が必ずしも等しくなくてよい。 FIG. 10 is a development view in which the packaging box 1 according to the fifth embodiment of the present invention is partially broken. In the packaging box 1, the break line 12 is provided on the attachment line 18 of the attachment piece 31 and the insertion piece 32, but only the central portion of the attachment line 18 becomes the break line 12, and on both sides of the break line 12. It is a cutting line 17 that separates the attachment piece 31 and the insertion piece 32. For this reason, the breaking line 12 is reliably broken rather than the packaging box 1 of Example 2. As described above, the attachment piece 31 is provided in the attachment portion 22 having a pair of left and right cutting lines 23 provided from the front edge of the top surface 21 toward the top surface 21 and the crease line 14 of the opening edge. As long as the insertion piece 32 is formed at the tip of the attachment piece 31, the front edge width (L5) of the attachment portion 22 and the width (L4) of the attachment line 18 to the attachment piece 31 of the insertion piece 32 are not necessarily equal. It is not necessary.

上記実施例１の包装箱１は左右の内フラップ４１（４２）に一つの係止部４５を備えているが、本発明においては、複数の係止部４５を設けることもできる。図１１は第６の実施形態である包装箱１の展開図である。この包装箱１の左右の両内フラップ４１（４２）はそれぞれ２つの係止部４５を有している。組み立て時には左内フラップ４１（４２）が備えられた開口縁に近い位置にある係止部４５と、右内フラップ４１（４２）が備えられた開口縁から遠い位置にある係止部４５が重なり、左内フラップ４１（４２）が備えられた開口縁に遠い位置にある係止部４５と右内フラップ４１（４２）が備えられた開口縁に近い位置にある係止部４５が重なる。また、天面２１は２つの取付部２２を有しており、当該２つの取付部２２内にそれぞれ差込フラップ３０の取付片３１が備えられている。そして、破断線１２は、差込片３２の取付片３１への取付線１８上にそれぞれ設けられている。この包装箱１においても、実施例１と同様に、２つの取付片３１はそれぞれ対応する係止部４５に係止され、開封時に２つの破断線１２が切断され、差込片３２が切り離される。 Although the packaging box 1 of the said Example 1 is provided with the one latching | locking part 45 in the left and right inner flap 41 (42), in this invention, the several latching | locking part 45 can also be provided. FIG. 11 is a development view of the packaging box 1 according to the sixth embodiment. The left and right inner flaps 41 (42) of the packaging box 1 each have two locking portions 45. At the time of assembly, the locking part 45 located near the opening edge provided with the left inner flap 41 (42) and the locking part 45 located far from the opening edge provided with the right inner flap 41 (42) overlap. The locking part 45 located at a position far from the opening edge provided with the left inner flap 41 (42) and the locking part 45 located near the opening edge provided with the right inner flap 41 (42) overlap. The top surface 21 has two attachment portions 22, and attachment pieces 31 for the insertion flaps 30 are provided in the two attachment portions 22, respectively. The break lines 12 are respectively provided on the attachment lines 18 of the insertion pieces 32 to the attachment pieces 31. Also in the packaging box 1, as in the first embodiment, the two attachment pieces 31 are respectively engaged with the corresponding engagement portions 45, the two break lines 12 are cut at the time of opening, and the insertion piece 32 is separated. .

図１２は本発明の第７の実施形態である包装箱１の斜視図である。この包装箱１は右内フラップ４２のみを有している。係止部４５は、この右内フラップ４２の開口縁への折り目線４４の近傍に形成されており、その位置に合わせて天面２１に取付部２２が形成されている。 FIG. 12 is a perspective view of the packaging box 1 according to the seventh embodiment of the present invention. This packaging box 1 has only a right inner flap 42. The locking part 45 is formed in the vicinity of the crease line 44 to the opening edge of the right inner flap 42, and the attachment part 22 is formed on the top surface 21 according to the position.

本発明においては、左右の内フラップ４１（４２）が、その下面に位置する差込片３２が開封動作により上方に移動するのを抑えることができればよい。従って、このような作用を発揮する限りにおいては、係止部４５の位置や天面２１の取付部２２の位置は、箱本体１０の大きさ、内フラップ４１（４２）の形状などに基づいて適宜設定される。 In the present invention, it is only necessary that the left and right inner flaps 41 (42) can prevent the insertion piece 32 positioned on the lower surface thereof from moving upward due to the opening operation. Therefore, as long as such an effect is exhibited, the position of the locking portion 45 and the position of the mounting portion 22 of the top surface 21 are based on the size of the box body 10 and the shape of the inner flap 41 (42). Set as appropriate.

これらの機能を果たすことができれば、この実施例７に示すように左内フラップ４１又は右内フラップ４２の何れか一方に係止部４５を設けることでも差し支えない。しかしながら、この場合には、当該内フラップ４１（４２）がたやすく開き、差込片３２を抑える力を発揮できず、差込フラップ３０を切断できない場合がある。このような観点から、前記各実施例のように左内フラップ４１と右内フラップ４２を重ね、この重なる位置に係止部４５を設けるのが好ましい。 As long as these functions can be achieved, as shown in the seventh embodiment, a locking portion 45 may be provided on either the left inner flap 41 or the right inner flap 42. However, in this case, the inner flap 41 (42) is easily opened, the force for suppressing the insertion piece 32 cannot be exhibited, and the insertion flap 30 may not be cut. From such a viewpoint, it is preferable that the left inner flap 41 and the right inner flap 42 are overlapped as in each of the embodiments, and the locking portion 45 is provided at the overlapping position.

また、左内フラップ４１と右内フラップ４２は通例、図１に示されたように左右対称の形状に作製されるので、左内フラップ４１と右内フラップ４２は、箱本体１０のほぼ中央位置において重なることになり、開封時における左右のバランスが取りやすくなる。さらに、この重なり部分に差込片３２の後端縁３２ａが位置するので、内フラップ４１（４２）によって加わる力が効果的に破断線１２に加わり、破断線１２が破断されやすくなる。 Further, since the left inner flap 41 and the right inner flap 42 are generally produced in a bilaterally symmetric shape as shown in FIG. 1, the left inner flap 41 and the right inner flap 42 are located at substantially the center position of the box body 10. It becomes easy to balance right and left at the time of opening. Furthermore, since the rear end edge 32a of the insertion piece 32 is located in this overlapping portion, the force applied by the inner flap 41 (42) is effectively applied to the breaking line 12, and the breaking line 12 is easily broken.

このように本発明の包装箱１は、天面２１に形成された切欠きからなる取付部２２内に差込フラップ３０の取付片３１を備えるとともに、この取付片３１を内フラップ４１（４２）の上方から下方に交差させる切欠きからなる係止部４５を左内フラップ４１及び／又は右内フラップ４２を備えている。このために、封緘時に、取付片３１を係止部４５に挿通させ、取付片３１の先端に備えられた幅広の差込片３２の後端縁３２ａを内フラップ４１（４２）の下面に位置させることができる。そして、開封時には、差込フラップ３０に設けられた破断線１２に上向きの力と下向きの力が加わるので破断線１２が破断される。その結果、開封されたことが直ちに認識される。 Thus, the packaging box 1 of the present invention includes the attachment piece 31 of the insertion flap 30 in the attachment portion 22 formed of a notch formed in the top surface 21, and the attachment piece 31 is connected to the inner flap 41 (42). The left inner flap 41 and / or the right inner flap 42 are provided with a locking portion 45 made of a notch that intersects from above to below. For this purpose, at the time of sealing, the attachment piece 31 is inserted into the locking portion 45, and the rear end edge 32a of the wide insertion piece 32 provided at the tip of the attachment piece 31 is positioned on the lower surface of the inner flap 41 (42). Can be made. At the time of opening, an upward force and a downward force are applied to the breaking line 12 provided on the insertion flap 30, so that the breaking line 12 is broken. As a result, it is immediately recognized that it has been opened.

図１３は本発明の第８の実施形態である包装箱１の斜視図、図１４は当該包装箱１を一部破断した展開図、図１５は当該包装箱１の平面図、図１６は図１５のＢＢ線断面図である。この包装箱１は本発明の第２の実施態様に対応するものであって、差込片３２を取付片３１との取付位置にて予め山折りしておき、前方の開口縁と内フラップ４１（４２）の先端縁との間に差込片３２を差し込んだ後に、取付片３１を係止部４５に係止させるようにしたものである。この態様によると、取付片３１の天面２１への取付位置において明確な折り目線１６がなく、しなるようにして取付片３１が係止部４５に係止される。この結果、天面２１に大きな穴が開くことなく封することができる。 FIG. 13 is a perspective view of a packaging box 1 according to an eighth embodiment of the present invention, FIG. 14 is a development view in which the packaging box 1 is partially broken, FIG. 15 is a plan view of the packaging box 1, and FIG. FIG. 15 is a cross-sectional view taken along line BB. The packaging box 1 corresponds to the second embodiment of the present invention, and the insertion piece 32 is folded in advance at the attachment position with the attachment piece 31, and the front opening edge and the inner flap 41 are provided. (42) After inserting the insertion piece 32 between the front-end | tip edges, the attachment piece 31 is made to latch to the latching | locking part 45. As shown in FIG. According to this aspect, there is no clear crease line 16 at the attachment position of the attachment piece 31 to the top surface 21, and the attachment piece 31 is engaged with the engagement portion 45 in such a manner. As a result, the top surface 21 can be sealed without opening a large hole.

この包装箱１の展開図は、実施例１に示す包装箱１の展開図とほぼ同じであり、図１４に示すように、差込片３２の取付片３１への取付線１８上で山折りされる折り目線１３が設けられ、破断線１２が折り目線１３となっている点で異なる。また、天面２１の取付部２２の周縁をなす２本の切断線２３の終点イを結ぶ線（図示されていない）上には、折り目線が付されていない。 The development view of the packaging box 1 is almost the same as the development view of the packaging box 1 shown in the first embodiment, and as shown in FIG. 14, the mountain fold is formed on the attachment line 18 to the attachment piece 31 of the insertion piece 32. The crease line 13 is provided, and the break line 12 is the crease line 13. In addition, a crease line is not provided on a line (not shown) that connects the end points A of the two cutting lines 23 that form the periphery of the attachment portion 22 of the top surface 21.

この包装箱１の係止部４５は、取付片３１を確実に係止させておく必要があるので、内フラップ４１（４２）の前縁の切欠き幅（Ｌ１：図示せず）は、差込片３２の取付片３１への取付幅（Ｌ３）よりもわずかに狭い必要がある。また、差込片３２の上端縁３２ａを、内フラップ４１（４２）の下面に位置させる必要があるので、係止部４５を形成する両側縁（切断線４７）は逆ハの字形状に形成するのが望ましい。従って、上記実施例と異なり、内フラップの前縁における切欠き幅（Ｌ１）と、差込片３２の取り付け幅（Ｌ３）の関係はＬ３＞Ｌ１となるが、これらと切断線４７の端点（終点）同士を結ぶ直線４８の長さ（幅）（Ｌ２）との関係はＬ２＞Ｌ３＞Ｌ１である必要はなく、Ｌ３＞Ｌ２＞Ｌ１となっても差し支えない。 Since the locking portion 45 of the packaging box 1 needs to securely lock the mounting piece 31, the notch width (L1: not shown) of the front edge of the inner flap 41 (42) is the difference. It is necessary to be slightly narrower than the attachment width (L3) of the fitting piece 32 to the attachment piece 31. Moreover, since it is necessary to position the upper end edge 32a of the insertion piece 32 in the lower surface of the inner flap 41 (42), both the side edges (cutting line 47) which form the latching | locking part 45 are formed in reverse C shape. It is desirable to do. Therefore, unlike the above embodiment, the relationship between the notch width (L1) at the front edge of the inner flap and the attachment width (L3) of the insertion piece 32 is L3> L1, but these are the end points of the cutting line 47 ( The relationship between the length (width) (L2) of the straight line 48 connecting the end points does not have to be L2> L3> L1, and L3> L2> L1 may be satisfied.

包装箱１の組み立て時には予め折り目線１３（破断線１２）上で山折りされる。そして差込片３２を差し込んだ後に、取付片３１の前方位置を押し下げることによって、取付片３１を係止部４５に係止させて包装箱１を封する。この態様によっても、係止部４５に挿通させた取付片３１の先端に備えられた幅広の差込片３２の後端縁３２ａが内フラップ４１（４２）の下面に位置するので、開封時には、差込フラップ３０に設けられた破断線１２に上向きの力と下向きの力が加わり、破断線１２が破断される。 When the packaging box 1 is assembled, it is folded in advance on the crease line 13 (break line 12). And after inserting the insertion piece 32, the attachment position 31 is latched by the latching | locking part 45 by pushing down the front position of the attachment piece 31, and the packaging box 1 is sealed. Also according to this aspect, the rear end edge 32a of the wide insertion piece 32 provided at the tip of the attachment piece 31 inserted through the locking portion 45 is located on the lower surface of the inner flap 41 (42). An upward force and a downward force are applied to the breaking line 12 provided in the insertion flap 30, and the breaking line 12 is broken.

実施例８の包装箱１では、破断線１２は差込片３２と取付片３１の折り目線１３上に設けられているが、破断線１２の位置はこの位置でなくてもよい。例えば、図７の実施例２に示すように取付部２２の周縁を形成する切断線２３の終点イを結ぶ線１５を破断線１２としたり、図９の実施例４に示すように差込片３１に破断線１２を設けるなど、取付片３１の左右の縁（天面２１と取付片３１とを切断する切断線２３）上の点を端点とする任意の破断線１２を設けることができる。 In the packaging box 1 of Example 8, the break line 12 is provided on the crease line 13 of the insertion piece 32 and the attachment piece 31, but the position of the break line 12 may not be this position. For example, as shown in Example 2 in FIG. 7, the line 15 connecting the end points A of the cutting lines 23 that form the periphery of the mounting portion 22 is used as the breaking line 12, or as shown in Example 4 in FIG. Arbitrary breaking lines 12 whose end points are points on the left and right edges of the mounting piece 31 (the cutting line 23 that cuts the top surface 21 and the mounting piece 31) can be provided.

図１７は本発明の第９の実施形態である包装箱１を一部破断した展開図である。この包装箱１は、上記第２の実施態様とほぼ同様な構造をしているが、天面２１の取付部２２の周縁は、前縁から天面２１と開口縁の折り目線１４に向けて平行となった左右一対の切断線２３と、さらに両切断線２３の終点イから、さらに天面２１と開口縁の折り目線１４に向けて、幅方向外側に膨らむ円弧状の切断線２４を備え、この切断線２４の終点ニを結ぶ線が天面２１と取付片３１との接続線（図では現れない）となっている。つまり、左右一対の平行となった切断線２３と、それに続く左右一対の円弧状の切断線２４と、取付部２２の前縁と、円弧状の切断線２４の両終点ニを結ぶ線（図では現れない）によって天面２１の取付部２２が形成され、左右一対の平行となった切断線２３が取付部２２の周縁の一部となっている。 FIG. 17 is a developed view in which the packaging box 1 according to the ninth embodiment of the present invention is partially broken. The packaging box 1 has substantially the same structure as that of the second embodiment, but the peripheral edge of the attachment portion 22 of the top surface 21 is directed from the front edge toward the crease line 14 of the top surface 21 and the opening edge. A pair of left and right cutting lines 23 that are parallel to each other, and an arc-shaped cutting line 24 that swells outward in the width direction from the end point A of both cutting lines 23 toward the top surface 21 and the crease line 14 of the opening edge are provided. A line connecting the end points D of the cutting line 24 is a connection line (not shown in the figure) between the top surface 21 and the mounting piece 31. That is, a pair of left and right parallel cutting lines 23, a pair of left and right arc-shaped cutting lines 24, a line connecting the front edge of the mounting portion 22 and both end points of the arc-shaped cutting lines 24 (see FIG. The attachment part 22 of the top surface 21 is formed, and a pair of left and right parallel cutting lines 23 are part of the periphery of the attachment part 22.

また、取付片３１の左右縁３１ａと左右一対の平行線となった切断線２３の間に隙間が形成され、取付片３１は天面２１の取付部２２よりも小さく作製されている。また、差込片３２は他の実施例と同じように、取付部２２の前縁幅よりも広い幅を有する略矩形状に作製されている。この包装箱１において、内フラップ４１（４２）に形成された係止部４５の前縁における切欠き幅（Ｌ１）と、差込片３２の取付片３１への取り付け幅（Ｌ３）の関係がＬ３＞Ｌ１となるようにしておくと、取付片３１を係止部４５に係止させることができる。 In addition, a gap is formed between the left and right edges 31 a of the mounting piece 31 and a pair of left and right cutting lines 23, and the mounting piece 31 is made smaller than the mounting portion 22 of the top surface 21. Moreover, the insertion piece 32 is produced in the substantially rectangular shape which has a width | variety wider than the front edge width | variety of the attaching part 22, like other Examples. In this packaging box 1, there is a relationship between the notch width (L1) at the front edge of the locking portion 45 formed on the inner flap 41 (42) and the attachment width (L3) of the insertion piece 32 to the attachment piece 31. If L3> L1, the mounting piece 31 can be locked to the locking portion 45.

以上各実施例について説明したように、天面２１に設けた切欠きからなる取付部２２に、差込フラップ３０を構成する取付片３１を設け、当該取付片３１を内フラップ４１（４２）の下面に位置させることができる切欠きからなる係止部４５を内フラップ４１（４２）の前縁に設けているので、天面２１との取付部分において取付片３１を山折りすることにより、封をすることができる。また、予め差込片３２を取付片３１との取付部分において山折りした差込フラップ３０を差し込み、その後取付片３１の前方位置を下方に押さえることにより、封をすることができる。こうして天面２１で開口１１を塞ぐことにより、いずれの場合にも、差込片３２の上端縁３２ａが内フラップ４１（４２）の下面に位置する。その結果、開封した際には、差込フラップ２０に設けられた破断線１２が切断され、開封したことがすぐに判別される。 As described above with respect to each of the embodiments, the attachment piece 31 constituting the insertion flap 30 is provided on the attachment portion 22 formed of the notch provided on the top surface 21, and the attachment piece 31 is attached to the inner flap 41 (42). Since the locking portion 45 made of a notch that can be positioned on the lower surface is provided on the front edge of the inner flap 41 (42), the mounting piece 31 is folded in a mountain at the mounting portion with the top surface 21, thereby sealing the Can do. Moreover, it can seal by inserting the insertion flap 30 which carried out the mountain-folding of the insertion piece 32 in the attachment part with the attachment piece 31 previously, and pressing down the front position of the attachment piece 31 after that. By closing the opening 11 with the top surface 21 in this way, the upper end edge 32a of the insertion piece 32 is positioned on the lower surface of the inner flap 41 (42) in any case. As a result, when opened, the breaking line 12 provided in the insertion flap 20 is cut, and it is immediately determined that the opened.

もっとも、本発明は上記実施例に限定されるものではなく、種々の変形例が考えられるのは言うまでもない。 Needless to say, the present invention is not limited to the above-described embodiments, and various modifications are conceivable.

本発明によると、差込フラップを備えた従来の一般的な包装箱と同じ組み立て方で組み立てることができる改ざん防止用の包装箱が提供される。特に、本発明によると天面と内フラップを糊付けしたり、差込片を差し込んだりする手間を省くことができる。 ADVANTAGE OF THE INVENTION According to this invention, the packaging box for tampering prevention which can be assembled by the same assembly method as the conventional general packaging box provided with the insertion flap is provided. In particular, according to the present invention, the trouble of gluing the top surface and the inner flap or inserting the insertion piece can be saved.

１包装箱
１０箱本体
１１箱本体上部の開口
１２差込フラップを切断する破断線
１４天面と開口縁との折り目線
２１天面
２２天面の取付部
２３天面の切欠きの周縁の一部を構成する切断線
３０差込フラップ
３１天面の取付部内に備えられる差込フラップの取付片
３２取付片の先端に備えられる差込片
４１左内フラップ
４１ａ左内フラップの先端縁
４２右内フラップ
４５切欠きからなる係止部 DESCRIPTION OF SYMBOLS 1 Packaging box 10 Box main body 11 Opening of upper part of box main body 12 Break line 14 which cuts an insertion flap Folding line 21 of a top surface and an opening edge Top surface 22 Top surface attachment part 23 One edge of the notch of a top surface The cutting line 30 which comprises the part Insertion flap 31 The attachment piece 32 of the insertion flap provided in the attachment part of a top | upper surface The insertion piece 41 provided in the front-end | tip of an attachment piece Left inner flap 41a Front edge 42 of the left inner flap Right inner Flap 45 Locking part consisting of notches

Claims

箱本体の開口を塞ぐ天面と、天面が備えられた開口縁に隣接する左右の開口縁に、前縁の一部が重なるように備えられた左右の内フラップと、当該内フラップの前縁と前記開口の前縁との間に差し込まれる差込フラップとを備えた包装箱であって、
前記天面は、前縁から当該天面と前記開口縁の折り目線に向かう左右一対の切断線の少なくとも一部を周縁の一部とする切欠きからなる取付部を有し、
前記差込フラップは、前記開口の前縁と略平行となる接続線によって前記取付部内において前記天面に備えられた取付片と、当該取付片の先端に備えられ、前記取付部の前縁幅よりも広い幅を有し、前記取付片の先端両側において前記天面と切り離された差込片とを有し、かつ、当該差込フラップは前記取付片の左右の縁上の点を端点とする破断線を備え、
前記内フラップは、左右の内フラップが重なる領域において、前記取付片を当該内フラップの上方から下方に交差させ、前記差込片の後端縁を当該内フラップの下面に位置させる切欠きからなる係止部を有することを特徴とする包装箱。 The top surface that closes the opening of the box body, the left and right inner flaps that overlap with the left and right opening edges adjacent to the opening edge provided with the top surface, and the front of the inner flap A packaging box comprising an insertion flap inserted between the edge and the front edge of the opening,
The top surface has a mounting portion made of a notch with at least a part of a pair of left and right cutting lines from the front edge toward the crease line of the top surface and the opening edge as a part of the periphery,
The insertion flap is provided at the top surface of the attachment portion within the attachment portion by a connection line that is substantially parallel to the front edge of the opening, and the front edge width of the attachment portion. Having a wider width, and having an insertion piece separated from the top surface on both sides of the tip of the mounting piece, and the insertion flap has points on the left and right edges of the mounting piece as end points With a breaking line to
The inner flap includes a notch in which the mounting piece intersects from the upper side to the lower side in the region where the left and right inner flaps overlap and the rear end edge of the insertion piece is positioned on the lower surface of the inner flap. A packaging box having a locking portion.

前記天面と前記取付片の接続線において山折りされたことを特徴とする請求項１に記載の包装箱。 The packaging box according to claim 1, wherein the packaging box is folded at a connecting line between the top surface and the mounting piece.

前記係止部の両端縁は前記内フラップの前縁から天面と開口縁の折り目線方向に向かって間隔が広がる略逆ハの字形状となったことを特徴とする請求項２に記載の包装箱。 The both end edges of the locking portion have a substantially inverted C shape in which the distance is widened from the front edge of the inner flap toward the crease line direction of the top surface and the opening edge. Packaging box.

前記係止部の前縁位置における切欠き幅は前記取付片と前記差込片の接続幅よりも広いことを特徴とする請求項３に記載の包装箱。 The packaging box according to claim 3, wherein a notch width at a front edge position of the locking portion is wider than a connection width between the attachment piece and the insertion piece.

前記破断線が前記取付片と前記差込片の接続位置に設けられたことを特徴とする請求項１〜４の何れか１項に記載の包装箱。 The packaging box according to any one of claims 1 to 4, wherein the breaking line is provided at a connection position between the attachment piece and the insertion piece.

前記破断線が前記取付片に設けられたことを特徴とする請求項１〜４の何れか１項に記載の包装箱。 The packaging box according to any one of claims 1 to 4, wherein the breaking line is provided on the attachment piece.

前記破断線が前記差込片に設けられたことを特徴とする請求項１〜４の何れか１項に記載の包装箱。 The packaging box according to any one of claims 1 to 4, wherein the breaking line is provided in the insertion piece.

前記内フラップの係止部は、当該内フラップが備えられた開口縁の近傍に設けられたことを特徴とする請求項１〜７の何れか１項に記載の包装箱。 The packaging portion according to any one of claims 1 to 7, wherein the engaging portion of the inner flap is provided in the vicinity of an opening edge provided with the inner flap.

前記係止部は、当該係止部の前縁から天面と開口縁の折り目線方向に向かって膨らむ第２の切欠きを有することを特徴とする請求項１〜８の何れかに記載の包装箱。 The locking portion is according to claim 1, characterized in that it comprises a-out second notch swell from the front edge of the engaging portion towards the fold line direction of the top surface and the opening edge Packaging box.