JP5464920B2 - Packaging box with closed-maintenance function - Google Patents

Packaging box with closed-maintenance function Download PDF

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JP5464920B2
JP5464920B2 JP2009144478A JP2009144478A JP5464920B2 JP 5464920 B2 JP5464920 B2 JP 5464920B2 JP 2009144478 A JP2009144478 A JP 2009144478A JP 2009144478 A JP2009144478 A JP 2009144478A JP 5464920 B2 JP5464920 B2 JP 5464920B2
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lid
line
packaging box
piece
folding curve
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JP2011001083A (en
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園恵 広川
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Asahi Printing Co Ltd
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この発明は、箱体側面に設けられた開封用破断線を切断して開封し、閉口状態を維持可能な閉口維持機能付包装用箱に関する。   The present invention relates to a packaging box with a closing maintenance function capable of cutting and opening a breaking line for opening provided on a side surface of a box and maintaining a closed state.

従来、商品を収容した包装用箱には、紙や合成樹脂で作られたブランクシートから一体的に打ち抜かれた箱体形成片で組み立てられたものがある。このような包装用箱は、互いに連接され筒状に組み立てられる４つの側面と、上方の開口を閉鎖する上蓋片と、下方の開口を閉鎖する底面が一体に設けられている。また、このような包装用箱の側面に開封用破断線が設けられたものがあり、開封用破断線を切断して開口部を形成し、この開口部から収容されている商品を容易に取り出すことができるようにしている。また、開封用破断線の一部を切り残し、切断した包装用箱の一部を蓋部として開口部の縁部に連結するものもある。   2. Description of the Related Art Conventionally, some packaging boxes containing products are assembled with box-forming pieces that are integrally punched from a blank sheet made of paper or synthetic resin. Such a packaging box is integrally provided with four side surfaces that are connected to each other and assembled into a cylindrical shape, an upper lid piece that closes the upper opening, and a bottom surface that closes the lower opening. In addition, there is a packaging box with a breaking line on the side of the packaging box, the breaking line is cut to form an opening, and a product accommodated from the opening can be easily taken out. To be able to. In some cases, a part of the breaking line for opening is left uncut and a part of the cut packaging box is connected to the edge of the opening as a lid.

このような開口部の縁部に連結する蓋部は、一度開封すると包装用箱の連結する部分に折り目ができて開口した状態となり、内容物が残った時などにも蓋部を十分に閉口することができなかった。従来この問題点を解決するために、蓋部の仮止め機能用の部材を、紙面積を広げて付け加えたり、別部材を組み込んだりして仮止めするものがあった。   Once the lid connected to the edge of such an opening is opened, a crease is formed in the connecting portion of the packaging box, and the lid is fully closed even when the contents remain. I couldn't. Conventionally, in order to solve this problem, there has been a case where a member for temporarily fixing the lid portion is temporarily fixed by expanding the paper area or incorporating another member.

その他に蓋部を仮止めするものとして、特許文献１に開示された繋止蓋付き包装箱がある。この繋止蓋付き包装箱は、正面部と背面部、左右側面部、天面部、底面部との六面部から構成される箱体で、前記正面部の幅方向に第一開封ミシン線が設けられ、背面部には第一開封ミシン線の高さ位置より天面部寄りに位置する折線が設けられ、前記左右側面の幅方向に第一開封ミシン線と背面部の折線とに繋がる斜めの第二開封ミシン線が設けられている。そして、この第一開封ミシン線と第二開封ミシン線を分断することで開閉可能な蓋部が形成され、前記蓋部の正面下端または蓋部の一方の側面部に切り欠きによるロック片が設けられたものである。   In addition, there is a packaging box with a locking lid disclosed in Patent Document 1 for temporarily fixing the lid. This packaging box with a locking lid is a box composed of six sides including a front part, a rear part, left and right side parts, a top part, and a bottom part, and a first opening sewing line is provided in the width direction of the front part. A folding line positioned closer to the top surface than the height position of the first opening sewing line is provided on the back surface, and the diagonal opening connected to the first opening sewing line and the folding line of the back surface in the width direction of the left and right side surfaces. Two unsealed sewing lines are provided. Then, a lid that can be opened and closed is formed by dividing the first opening sewing line and the second opening sewing line, and a lock piece by a notch is provided on the front lower end of the lid or one side of the lid. It is what was done.

特開２００１−１９２０２２号公報JP 2001-192022 A

上記背景技術の場合、蓋部を開けた後、蓋部を手で戻して側面に係止しなければならず、操作が面倒であった。さらに、片方の手に取出した商品を持っている場合等においては、特に操作しづらいものであった。   In the case of the background art described above, after opening the lid portion, the lid portion must be returned by hand and locked to the side surface, which is troublesome. In addition, it is particularly difficult to operate when holding a product taken out in one hand.

この発明は、上記背景技術の問題点に鑑みてなされたものであり、側面に開封用破断線が設けられて開封しやすいものであり、開封用破断線により側面の一部が分割されて連続する蓋部が、閉鎖して閉口状態を維持することができる閉口機能付包装用箱を提供することを目的とする。   The present invention has been made in view of the problems of the background art described above, and is provided with a breaking line for opening on the side surface and is easy to open. A part of the side surface is continuously divided by the breaking line for opening. An object of the present invention is to provide a packaging box with a closing function in which a lid portion to be closed can maintain a closed state.

本発明は、一枚のブランクシートから一体的に打ち抜かれた箱体形成片からなり、この箱体形成片には、互いに平行に連接された側面と、前記側面同士を糊付けする糊付片と、筒状に組み立てられた前記側面の開口を閉じる上蓋片と、前記側面のうち１つの側面に形成され前記側面の連接方向に沿う蓋部折曲線と、その他の前記側面に形成され前記蓋部折曲線と連続して筒状に組み立てられた前記側面を一周する開封用破断線が設けられ、前記開封用破断線を切断すると前記上蓋片と前記側面の前記開封用破断線よりも上方の部分からなる蓋部が形成され、前記蓋部折曲線を折り曲げて、蓋部を押し上げて開封する包装用箱であって、前記蓋部折曲線が設けられている前記側面と隣接する前記箱体形成片の他部分との境界に各々折罫線が設けられ、前記折罫線は前記箱体形成片の組立状態で稜線となり、いずれかの前記折罫線の途中には前記稜線を面取りした凹面部が形成され、前記蓋部折曲線が設けられている前記側面には、前記凹面部が形成されたことにより前記箱体形成片の組立状態で外側に膨らむ力が作用し、前記蓋部に対して閉じ状態を維持する抵抗力が生じるようにした閉口維持機能付包装用箱である。前記凹面部は、前記稜線の両側へ膨らむ一対の凹面部折曲線で囲まれて形成されているものである。 The present invention comprises a box-forming piece integrally punched from one blank sheet. The box-forming piece includes a side surface connected in parallel to each other, and a glued piece for gluing the side surfaces. An upper lid piece that closes the opening of the side surface assembled in a cylindrical shape, a lid folding curve formed on one side surface of the side surfaces along the connecting direction of the side surfaces, and the lid portion formed on the other side surface An opening break line that wraps around the side surface that is assembled in a cylindrical shape continuously with the folding line is provided, and when the opening break line is cut, the upper lid piece and a portion of the side surface above the opening break line And a box for forming the box adjacent to the side surface on which the lid folding curve is provided . Each crease line is provided at the boundary with the other part of the piece Is, the folding border becomes ridge in the assembled state of the box body forming member, one of the the middle of the folded borders concave portion chamfered said ridge is formed, the said lid part folding line is provided On the side surface, since the concave surface portion is formed, a force that bulges outward in the assembled state of the box-forming piece acts, and a resistance force for maintaining the closed state is generated with respect to the lid portion. It is a packaging box with a function. The concave surface portion is formed by being surrounded by a pair of concave surface fold lines that swell to both sides of the ridge line.

前記蓋部折曲線は、円弧状の切断線が複数個所定間隔をあけて連続して設けられ、前記切断線は膨出する方向が前記蓋部折曲線の延出方向に対して交差する方向に膨出し、隣接する切断線どうしは、互いに反対側に交互に向いているものである。この切断線は、前記蓋部が閉じたときに、箱体形成片の厚み方向に端面がずれて摩擦力で係止され、前記蓋部の閉口状態を確実に維持する。前記切断線どうしの間に、前記蓋部折曲線の延出方向に沿う折罫線が設けられてもよい。   The lid folding curve is formed by continuously providing a plurality of arc-shaped cutting lines with a predetermined interval, and the cutting line has a direction in which the direction of bulging intersects the extending direction of the lid folding curve The adjacent cutting lines are alternately directed to the opposite sides. When the lid portion is closed, this cutting line has its end face shifted in the thickness direction of the box-forming piece and is locked by a frictional force, so that the closed state of the lid portion is reliably maintained. A crease line along the extending direction of the lid folding curve may be provided between the cutting lines.

前記凹面部は、前記側面とその両側の側面との間の折罫線で作られる稜線であって、前記蓋部折曲線と直交する稜線上に設けられている。また、前記凹面部は、前記側面と前記上蓋片の間の折罫線で作られる稜線上に設けられているものである。   The concave surface portion is a ridge line formed by a crease line between the side surface and the side surfaces on both sides thereof, and is provided on a ridge line orthogonal to the lid folding curve. Further, the concave surface portion is provided on a ridge line formed by a crease line between the side surface and the upper lid piece.

前記凹面部は前記蓋部折曲線に設けられ、前記蓋部が開いたときに前記蓋部折曲線が折り曲げられて作られる稜線上に設けられるものである。また、前記凹面部は、前記１つの稜線に複数個が設けられていても良い。   The concave surface portion is provided on the lid folding curve, and is provided on a ridge formed by bending the lid folding curve when the lid is opened. A plurality of the concave surface portions may be provided on the one ridge line.

本発明の閉口維持機能付包装用箱は、側面に開封用破断線が設けられて開封しやすいものであり、蓋部折曲線を有する側面は、外側に膨らんで蓋部折曲線が曲げにくくなり、蓋部の閉口状態を維持することができる。この力に抗して前記蓋部折曲線を折り曲げて蓋部を開いたときは、蓋部に閉口する力が生じ手を離せば自然と閉口状態とすることができ、操作が簡単である。そして、この閉口維持機能付包装用箱に被収容物が残ったときには、再封可能であり不用意に開いて外に内容物が散らかることがなく、便利である。   The packaging box with a closing maintenance function of the present invention is provided with a tearing break line on the side surface and is easy to open, and the side surface having the lid folding curve bulges outward so that the lid folding curve is difficult to bend. The closed state of the lid can be maintained. When the lid fold curve is bent against this force and the lid is opened, a closing force is generated in the lid, and when the hand is released, the lid can be naturally closed, and the operation is simple. And, when an object to be stored remains in this packaging box with a closing maintenance function, it can be resealed and is not opened carelessly and the contents are not scattered outside, which is convenient.

この発明の第一実施形態の閉口維持機能付包装用箱の閉口状態を示す斜視図である。It is a perspective view which shows the closing state of the packaging box with a closing maintenance function of 1st embodiment of this invention. この発明の第一実施形態の閉口維持機能付包装用箱の開口状態を示す斜視図である。It is a perspective view which shows the opening state of the packaging box with a closing maintenance function of 1st embodiment of this invention. この発明の第一実施形態の閉口維持機能付包装用箱の閉口する操作を示す斜視図である。It is a perspective view which shows operation which closes the packaging box with a closing maintenance function of 1st embodiment of this invention. この発明の第一実施形態の閉口維持機能付包装用箱の未開封の状態を示す斜視図である。It is a perspective view which shows the unopened state of the packaging box with a closing maintenance function of 1st embodiment of this invention. この発明の第一実施形態の閉口維持機能付包装用箱の展開図である。It is an expanded view of the packaging box with a closing maintenance function of 1st embodiment of this invention. この発明の第一実施形態の閉口維持機能付包装用箱の折り畳み状態を示す正面図である。It is a front view which shows the folding state of the packaging box with a closing maintenance function of 1st embodiment of this invention. この発明の第一実施形態の閉口維持機能付包装用箱の変形例の展開図である。It is an expanded view of the modification of the packaging box with a closing maintenance function of 1st embodiment of this invention. この発明の第二実施形態の閉口維持機能付包装用箱の展開図である。It is an expanded view of the packaging box with a closing maintenance function of 2nd embodiment of this invention. この発明の第三実施形態の閉口維持機能付包装用箱の展開図である。It is an expanded view of the packaging box with a closing maintenance function of 3rd embodiment of this invention. この発明の第四実施形態の閉口維持機能付包装用箱の展開図である。It is an expanded view of the packaging box with a closing maintenance function of 4th embodiment of this invention. この発明の第五実施形態の閉口維持機能付包装用箱の展開図である。It is an expanded view of the packaging box with a closing maintenance function of 5th embodiment of this invention.

以下、この発明の実施形態について図面に基づいて説明する。図１〜図６この発明の第一実施形態を示すもので、この実施形態の閉口維持機能付包装用箱１０は、紙製等の一枚のブランクシートを打ち抜いて形成された箱体形成片１２を組み立てて設けられている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 6 show a first embodiment of the present invention, and a packaging box 10 with a closed-maintenance function of this embodiment is a box-forming piece formed by punching out a single blank sheet such as paper. 12 is assembled and provided.

図５は箱体形成片１２を表面から見た展開図であり、箱体形成片１２は、側面１４，１６，１８，２０が互いに平行に連接して形成されている。側面１４，１６，１８，２０は、連接している幅方向は同じ長さであり、連接方向の長さは側面１４，１８が長くて互いにほぼ等しく、側面１６，２０は短くて互いにほぼ等しい。さらに側面１４の側縁部には、開口機能付包装用箱１０の組み立て状態で側面２０の裏面に糊付けされる糊付片２２が設けられている。糊付片２２、側面１４，１６，１８，２０は、各々折罫線２４，２６，２８，３０で区切られている。   FIG. 5 is a developed view of the box-forming piece 12 as viewed from the surface, and the box-forming piece 12 is formed by connecting side surfaces 14, 16, 18, and 20 in parallel with each other. The side surfaces 14, 16, 18, and 20 have the same length in the connecting width direction, and the lengths in the connecting direction are substantially equal to each other when the side surfaces 14 and 18 are long, and the side surfaces 16 and 20 are short and approximately equal to each other. . Further, a glued piece 22 that is glued to the back surface of the side face 20 in the assembled state of the packaging box 10 with an opening function is provided on the side edge of the side face 14. The glued piece 22 and the side surfaces 14, 16, 18, and 20 are divided by crease lines 24, 26, 28, and 30, respectively.

側面１４において、側面どうしの連接方向に対して直角な方向の一端部には、内側上蓋片３２が、折罫線３４で区切られて設けられている。側面１４には、折罫線３４に近い位置に、折罫線３４に対してほぼ平行な蓋部折曲線３６が設けられている。蓋部折曲線３６は、円弧状の切断線３６ａが複数個所定間隔をあけて連続することにより形成されている。円弧状の切断線３６ａは膨出する方向が蓋部折曲線３６の延出方向に対して交差する方向に膨出し、隣接する切断線３６ａどうしは、互いに反対側に交互に向いている。糊付片２２との境目に設けられている折罫線２４は、箱体形成片１２を組み立てた状態で稜線となり、折罫線２４の途中には、稜線を面取りした凹面部３８が形成されている。凹面部３８は、折罫線３４に近い位置に設けられ、凹面部３８の内側には折罫線２４が設けられておらず中断されている。凹面部３８は、折罫線２４の両脇に、糊付片２２または側面１４へ膨らむ一対の円弧状の凹面部折曲線４０で囲まれて形成されている。側面１４の、折罫線３４と反対側の端部には、内側底蓋片４２が折罫線４４で区切られて設けられている。   On the side surface 14, an inner upper lid piece 32 is provided at one end portion in a direction perpendicular to the connecting direction of the side surfaces, separated by a crease line 34. On the side surface 14, a lid folding curve 36 that is substantially parallel to the crease line 34 is provided at a position close to the crease line 34. The lid folding curve 36 is formed by a plurality of arc-shaped cutting lines 36a continuing at a predetermined interval. The arcuate cutting lines 36a bulge in the direction in which the bulging direction intersects the extending direction of the lid folding curve 36, and the adjacent cutting lines 36a are alternately directed to opposite sides. The crease line 24 provided at the boundary with the glued piece 22 becomes a ridge line in a state where the box forming piece 12 is assembled, and a concave surface portion chamfered with the ridge line is formed in the middle of the crease line 24. . The concave surface portion 38 is provided at a position close to the crease line 34, and the crease line 24 is not provided inside the concave surface portion 38 and is interrupted. The concave surface portion 38 is formed on both sides of the crease line 24 so as to be surrounded by a pair of arcuate concave surface folding curves 40 that swell to the glued piece 22 or the side surface 14. An inner bottom cover piece 42 is provided at the end of the side surface 14 opposite to the crease line 34 and separated by the crease line 44.

側面１６の、側面１４の折罫線３４に隣接する端部には、台形状のフラップ４６が折罫線４８で区切られて設けられている。側面１６の、折罫線４８と反対側の端部には、台形状のフラップ５０が折罫線５２で区切られて設けられている。そして、側面１６には、側面１４の蓋部折曲線３６に連続する開封用破断線５４が設けられている。開封用破断線５４は、折罫線２６の蓋部折曲線３６に連続する位置から始まり、折罫線２８に達するとともに、開封用破断線５４は折罫線２８に近づくほどフラップ４６から離れる方向へ傾斜して設けられている。   A trapezoidal flap 46 is provided at the end of the side surface 16 adjacent to the crease line 34 of the side surface 14 and separated by a crease line 48. A trapezoidal flap 50 is provided at the end of the side surface 16 opposite to the crease line 48 and separated by a crease line 52. The side face 16 is provided with an opening breaking line 54 that is continuous with the lid folding curve 36 of the side face 14. The breaking line for opening 54 starts from a position continuous with the lid folding line 36 of the crease line 26, reaches the crease line 28, and the opening break line 54 inclines in a direction away from the flap 46 as the crease line 28 is approached. Is provided.

側面１８の、側面１６の折罫線４８に隣接する端部には、内側上蓋片３２とほぼ同じ大きさの矩形の外側上蓋片５６が折罫線５８で区切られて設けられている。側面１８の折罫線５８と反対側の端部には、内側底蓋片４２とほぼ同じ大きさの矩形の外側底蓋片６０が折罫線６２で区切られて設けられている。さらに、側面１８には、側面１６の開封用破断線５４に連続する開封用破断線６４が設けられている。開封用破断線６４は、折罫線２８の開封用破断線５４に連続する位置から始まり折罫線３０に達し、開封用破断線６４は折罫線５８に対してほぼ平行に設けられている。   At the end of the side surface 18 adjacent to the crease line 48 on the side surface 16, a rectangular outer top cover piece 56 having the same size as the inner upper cover piece 32 is provided by being separated by a crease line 58. A rectangular outer bottom cover piece 60 having substantially the same size as the inner bottom cover piece 42 is provided at the end of the side surface 18 opposite to the crease line 58 and separated by a crease line 62. Further, the side surface 18 is provided with an opening breaking line 64 that is continuous with the opening breaking line 54 of the side surface 16. The opening break line 64 starts from a position continuous with the opening break line 54 of the crease line 28 and reaches the crease line 30, and the opening break line 64 is provided substantially parallel to the crease line 58.

側面２０の、側面１８の折罫線５８に隣接する端部には、台形状のフラップ６６が折罫線６８で区切られて設けられている。側面２０の、折罫線６８と反対側の端部には、台形状のフラップ７０が折罫線７２で区切られて設けられている。そして、側面２０には、開封用破断線６４に連続する開封用破断線７４が設けられている。開封用破断線７４は、折罫線３０の開封用破断線６４に連続する位置から始まり折罫線３０と反対側の側縁部２０ａに達し、開封用破断線７４は側縁部２０ａに近づくほどフラップ６６に近づく方向へ傾斜している。つまり開封用破断線５４と対称形となっている。側縁部２０ａには、箱体形成片１２を組み立てた状態で凹面部３８に対向する位置に、凹面部折曲線４０に沿う形状の切欠部７６が形成されている。   A trapezoidal flap 66 is provided at the end of the side surface 20 adjacent to the crease line 58 of the side surface 18 and separated by the crease line 68. A trapezoidal flap 70 is provided at the end of the side surface 20 opposite to the crease line 68, separated by a crease line 72. The side surface 20 is provided with an opening break line 74 that is continuous with the opening break line 64. The opening breaking line 74 starts from a position continuous with the opening breaking line 64 of the crease line 30 and reaches the side edge 20a opposite to the crease line 30, and the opening breaking line 74 flaps toward the side edge 20a. It is inclined in a direction approaching 66. That is, it is symmetrical with the breaking line 54 for opening. In the side edge portion 20a, a cutout portion 76 having a shape along the concave surface folding line 40 is formed at a position facing the concave surface portion 38 in a state in which the box forming piece 12 is assembled.

糊付片２２には、側面１４の蓋部折曲線３６に連続する開封用破断線７８が設けられている。開封用破断線７８は、折罫線２４の蓋部折曲線３６に連続する位置から始まり折罫線２４と反対側の側縁部２２ａに達し、開封用破断線７８は側縁部２２ａに近づくほど内側上蓋片３２から離れる方向へ傾斜して設けられている。   The gluing piece 22 is provided with an opening breaking line 78 continuous with the lid folding curve 36 of the side surface 14. The opening breaking line 78 starts from a position continuous with the lid folding line 36 of the crease line 24 and reaches the side edge 22a opposite to the crease line 24. The opening breaking line 78 becomes closer to the side edge 22a. Inclined in a direction away from the upper lid piece 32.

次に、この実施形態の閉口維持機能付包装用箱１０の組立方法の一例について説明する。なお、ここでは図５が閉口維持機能付包装用箱１０の箱体形成片１２の表面を見たものであり箱体形成片１２の表面が凸になる折り方を正折り、そして裏面が凸になる折り方を逆折りと称する。   Next, an example of an assembling method of the packaging box 10 with the closing maintenance function of this embodiment will be described. Here, FIG. 5 is a view of the surface of the box-forming piece 12 of the packaging box 10 with a closed-maintenance function, and the folding method in which the surface of the box-forming piece 12 is convex is forwardly folded, and the back surface is convex. This folding method is called reverse folding.

まず、折罫線２６を正折りして糊付片２２の表面に糊８０を塗布する。次に、折罫線３０を正折りして側面２０の裏面が糊８０により糊付片２２の表面に糊付けされ、図６に示す折り畳み状態となり、この状態で出荷される。次に商品を収容し包装する工場において、折罫線２４，２６，２８，３０を各々９０°に正折りして四角形の箱体にする。このとき、一対の凹面部折曲線４０も９０度より大きな角度に正折りされ、一対の凹面部折曲線４０の内側の凹面部３８は、折罫線２４が正折りされて作られた稜線を面取りするように位置する。次に、内側底蓋片４２の表面に糊８２を塗布し、折罫線５２，７２でフラップ５０，７０を９０°に正折りし、その後折罫線４４で内側底蓋片４２を９０°に正折りし、さらに折罫線６２で外側底蓋片６０を９０°に正折りして外側底蓋片６０の裏面が糊８２により内側底蓋片４２の表面に糊付けされ、底部が形成される。   First, the crease line 26 is normally folded and the glue 80 is applied to the surface of the glued piece 22. Next, the crease line 30 is forward-folded, and the back surface of the side surface 20 is glued to the surface of the glued piece 22 with glue 80, resulting in the folded state shown in FIG. 6 and shipped in this state. Next, in a factory for storing and packaging products, the crease lines 24, 26, 28, and 30 are each normally folded at 90 ° to form a rectangular box. At this time, the pair of concave surface folding curves 40 are also normally folded at an angle larger than 90 degrees, and the concave surface portions 38 inside the pair of concave surface folding curves 40 are chamfered on the ridgeline formed by the regular folding of the crease line 24. Located to do. Next, paste 82 is applied to the surface of the inner bottom cover piece 42, the flaps 50, 70 are normally folded at 90 ° along the crease lines 52, 72, and then the inner bottom cover piece 42 is aligned at 90 ° at the crease line 44. Further, the outer bottom cover piece 60 is forwardly folded at 90 ° by the crease line 62, and the back surface of the outer bottom cover piece 60 is glued to the surface of the inner bottom cover piece 42 by the glue 82 to form the bottom.

この後、組み立てられた箱体の中に商品を入れ、内側上蓋片３２の表面に糊８４を塗布し、折罫線４８，６８でフラップ４６，６６を９０°に正折りし、その後折罫線３４で内側上蓋片３２を９０°に正折りし、さらに折罫線５８で外側上蓋片５６を９０°に正折りして外側上蓋片５６の裏面が糊８４により内側上蓋片３２の表面に糊付けされ、上面が形成される。閉口維持機能付包装用箱１０は、組み立て状態で側面１４が、凹面部３８の影響によりわずかに外側に膨らんでいる。凹面部３８には側面２０が重ねられるが、側面２０の切欠部７６が対面し、側面２０で覆われることがなく露出する。なお、箱体形成片１２を組み立てる順番はこれ以外でもよく、適宜変更可能である。   Thereafter, the product is put into the assembled box, paste 84 is applied to the surface of the inner upper lid piece 32, the flaps 46 and 66 are normally folded at 90 ° by the crease lines 48 and 68, and then the crease line 34 is obtained. The inner upper lid piece 32 is normally folded at 90 °, and the outer upper lid piece 56 is folded at 90 ° along the crease line 58, and the back surface of the outer upper lid piece 56 is glued to the surface of the inner upper lid piece 32 by glue 84, An upper surface is formed. The packaging box 10 with a closed-maintenance function has the side surface 14 slightly bulging outward due to the influence of the concave portion 38 in the assembled state. The side surface 20 is superimposed on the concave surface portion 38, but the notch 76 of the side surface 20 faces and is exposed without being covered by the side surface 20. The order of assembling the box forming pieces 12 may be other than this, and can be changed as appropriate.

次に、この実施形態の開口機能付包装用箱１０の開封方法について説明する。側面１８の開封用破断線６４の下側または上側のいずれかの位置を指で押し込み、側面１８を変形させて開封用破断線６４を切断する。切断した開封用破断線６４の上縁部を指で上方に移動させると、開封用破断線５４，７４，７８が切断されて、側面１６，１８，２０、糊付片２２が分割され、開封される。閉口維持機能付包装用箱１０は分割されて、内側上蓋片３２と外側上蓋片５６と、側面１６，１８，２０の分割された上部分が蓋部８６となり、側面１４の蓋部折曲線３６を逆折りして開く。側面１４は、凹面部３８の影響によりわずかに外側に膨らんでいるため、蓋部折曲線３６が逆折りしにくいものとなる。側面１４が外側に膨らむ力に抗して蓋部折曲線３６を逆折りして蓋部８６を開いたときは、蓋部８６を閉じる方向の力が生じるものである。また、蓋部折曲線３６を逆折りすると、切断線３６ａの上側と下側の両側縁部が移動して互いに離れる。   Next, the opening method of the packaging box 10 with an opening function of this embodiment is demonstrated. The lower side or the upper side of the opening breaking line 64 on the side surface 18 is pushed with a finger to deform the side surface 18 and cut the opening breaking line 64. When the upper edge of the cut opening breaking line 64 is moved upward with a finger, the opening breaking lines 54, 74, and 78 are cut, and the side surfaces 16, 18, 20, and the glued pieces 22 are divided and opened. Is done. The packaging box 10 with the closing maintenance function is divided, and the inner upper lid piece 32, the outer upper lid piece 56, and the divided upper portions of the side surfaces 16, 18, and 20 serve as the lid portion 86, and the lid portion folding curve 36 of the side surface 14. Fold open and open. Since the side surface 14 slightly bulges outward due to the influence of the concave surface portion 38, the lid folding curve 36 is difficult to reversely fold. When the lid part folding curve 36 is reversely folded against the force of the side surface 14 bulging outward and the lid part 86 is opened, a force in the direction of closing the lid part 86 is generated. When the lid folding curve 36 is reversely folded, the upper and lower side edges of the cutting line 36a are moved away from each other.

蓋部８６を閉じるときは、図３に示すように側面１４の両脇の折罫線２４，２６を挟んで保持し、指で折罫線２４の凹面部３８を押し込む。すると、側面１４に外側に膨らむ力が強くかかり、蓋部折曲線３６は逆折りが復元されて平坦になり、蓋部８６は元の位置にもどり閉口する。蓋部折曲線３６の逆折りが復元されて平坦になると、切断線３６ａの上側と下側の両側の側縁部が互いに嵌合され、ブランクシートの厚みである端面どうしが摩擦で係止される。なお、凹面部３８を指で押さなくても、蓋部８６を閉める方向に少し押すだけでも自動的に閉じる。そして、側面１４が外側に膨らんでいるため、蓋部８６には常に閉口した状態を維持する力が加えられる。   When closing the lid portion 86, as shown in FIG. 3, the crease lines 24 and 26 on both sides of the side surface 14 are sandwiched and held, and the concave surface portion 38 of the crease line 24 is pushed in with a finger. Then, a force that bulges outward is applied to the side surface 14, the reverse folding of the lid part 36 is restored and flattened, and the lid part 86 returns to its original position and closes. When the reverse folding of the lid folding curve 36 is restored and flattened, the side edges on both the upper and lower sides of the cutting line 36a are fitted to each other, and the end faces, which are the thickness of the blank sheet, are locked by friction. The In addition, even if it does not press the concave surface part 38 with a finger | toe, even if it pushes a little in the direction which closes the cover part 86, it will close automatically. And since the side surface 14 swells outside, the force which always maintains the closed state is applied to the lid portion 86.

この実施形態の閉口維持機能付包装用箱１０によれば、以下のような作用効果を奏する。まず、簡単な構造で蓋部８６を閉口させた状態で維持し、収容された商品が残ったときには、確実に再封することができる。各側面１６，１８，２０には開封用破断線５４，６４，７４が設けられ、容易に開封することができる。そして、この閉口維持機能付包装用箱１０は、側面１４が外側に膨らんで蓋部折曲線３６を逆折りしにくいものとなり、蓋部８６の閉口を維持することができる。また、側面１４が外側に膨らむ力に抗して蓋部折曲線３６を折り曲げて蓋部８６を開いたときは、蓋部８６を閉じる力が生じ手を離せば自然と閉じ、閉口操作が容易であり、凹面部３８を押すと、よりすばやく閉めることができる。さらに、確実に蓋部８６の閉口状態を維持するため、商品の使い残しを再封することが可能であり、便利である。閉口維持機能付包装用箱１０は未開封の状態で開口部や凹凸がないため、仕上がりの体裁を損なうことがなく、すっきりとした外観となる。また、輸送時にコンパクトで便利であり、また箱強度が維持されているため破損を抑えることができる。   According to the packaging box 10 with the closing maintenance function of this embodiment, the following operational effects can be obtained. First, the lid 86 is kept closed with a simple structure, and when the stored product remains, it can be reliably resealed. Each of the side surfaces 16, 18, and 20 is provided with opening breaking lines 54, 64, and 74, and can be easily opened. And this packaging box 10 with a closing maintenance function becomes the thing by which the side surface 14 bulges outside, and becomes difficult to reversely fold the cover part folding curve 36, and can maintain the closing of the cover part 86. Further, when the lid part folding curve 36 is bent against the force that the side surface 14 bulges outward to open the lid part 86, a force to close the lid part 86 is generated, so that the hand can be closed naturally and the closing operation is easy. When the concave portion 38 is pushed, it can be closed more quickly. Furthermore, in order to reliably maintain the closed state of the lid portion 86, it is possible to reseal the remaining use of the product, which is convenient. Since the packaging box 10 with the closing maintenance function is not opened and has no openings or irregularities, the appearance of the finished product is not impaired, and the appearance is neat. Moreover, it is compact and convenient at the time of transportation, and damage can be suppressed because the box strength is maintained.

なお、この実施形態の閉口維持機能付包装用箱１０は、図７に示すように蓋部折曲線３６の切断線３６ａどうしの間に、蓋部折曲線３６の延出方向に沿う折罫線３７が設けられてもよい。これにより、弱い力でも蓋部８６を開けることができる。   In addition, the packaging box 10 with a closing maintenance function of this embodiment has a crease line 37 along the extending direction of the lid folding curve 36 between the cutting lines 36a of the lid folding curve 36 as shown in FIG. May be provided. Thereby, the cover part 86 can be opened with a weak force.

次にこの発明の第二実施形態について、図８に基づいて説明する。なお、ここで、上記実施形態と同様の部材は同様の符号を付して説明を省略する。この実施形態の閉口維持機能付包装用箱８８は、側面１４の折罫線３４に近い位置に、折罫線３４に対してほぼ平行な蓋部折曲線９０が設けられている。蓋部折曲線９０は直線であり、折り曲げやすいように切断線が４か所に設けられている。   Next, a second embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The packaging box 88 with a closing maintenance function of this embodiment is provided with a lid folding line 90 substantially parallel to the crease line 34 at a position close to the crease line 34 on the side surface 14. The lid folding curve 90 is a straight line, and four cutting lines are provided so that it can be bent easily.

この実施形態の閉口維持機能付包装用箱８８の組立方法と開封方法は、前記実施形態と同様であり、同様の効果を有している。蓋部折曲線９０が直線であり、構造がシンプルとなり、外観がすっきりとするため、側面１４に自由なデザインの印刷等をすることができる。   The assembling method and the opening method of the packaging box 88 with a closing maintenance function of this embodiment are the same as those of the above-described embodiment, and have the same effects. Since the lid folding curve 90 is a straight line, the structure is simple, and the appearance is clean, it is possible to print a free design or the like on the side surface 14.

次にこの発明の第三実施形態について、図９に基づいて説明する。なお、ここで、上記実施形態と同様の部材は同様の符号を付して説明を省略する。この実施形態の閉口維持機能付包装用箱９２は、側面１４の折罫線３４に近い位置に、折罫線３４に対してほぼ平行な蓋部折曲線９４が設けられている。蓋部折曲線９４は直線であり、蓋部折曲線９４の中心には凹面部９６が設けられている。凹面部９６は、蓋部折曲線９４の両脇に膨らむ円弧状の一対の凹面部折曲線９８で囲まれて形成されている。蓋部折曲線９４と凹面部折曲線９８には、折り曲げやすいように切断線が部分的に設けられている。   Next, a third embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The packaging box 92 with a closing maintenance function of this embodiment is provided with a lid folding line 94 that is substantially parallel to the crease line 34 at a position close to the crease line 34 on the side surface 14. The lid folding curve 94 is a straight line, and a concave surface portion 96 is provided at the center of the lid folding curve 94. The concave surface portion 96 is formed so as to be surrounded by a pair of arc-shaped concave surface portion folding curves 98 bulging on both sides of the lid folding curve 94. The lid fold curve 94 and the concave surface fold curve 98 are partially provided with cutting lines so as to be easily bent.

この実施形態の閉口維持機能付包装用箱９２の組立方法と開封方法は、前記実施形態と同様であり、同様の効果を有している。蓋部折曲線９０に凹面部９６が設けられているため、蓋部折曲線９０を逆折りして稜線となった時に蓋部８６を閉じる力が働き、確実に閉口状態を維持することができる。   The assembling method and the unsealing method of the packaging box 92 with a closing maintenance function of this embodiment are the same as those of the above embodiment and have the same effects. Since the concave part 96 is provided in the lid part folding curve 90, when the lid part folding curve 90 is reversely folded into a ridgeline, a force for closing the lid part 86 works, and the closed state can be reliably maintained. .

次にこの発明の第四実施形態について、図１０に基づいて説明する。なお、ここで、上記実施形態と同様の部材は同様の符号を付して説明を省略する。この実施形態の閉口維持機能付包装用箱１００は、側面１４と内側上蓋片３２の間に位置する折罫線３４に、凹面部１０２が２つ設けられている。凹面部１０２は、折罫線３４の両脇に膨らむ円弧状の一対の凹面部折曲線１０４で囲まれて形成されている。外側上蓋片５６には、折罫線５８と反対側の端面に、凹面部１０２に対向する切欠部１０５が形成されている。   Next, a fourth embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the packaging box 100 with a closing maintenance function of this embodiment, two concave surface portions 102 are provided on the crease line 34 located between the side surface 14 and the inner upper lid piece 32. The concave surface portion 102 is formed by being surrounded by a pair of arc-shaped concave surface portion folding curves 104 that swell on both sides of the crease line 34. The outer upper lid piece 56 is formed with a notch portion 105 facing the concave surface portion 102 on the end surface opposite to the crease line 58.

この実施形態の閉口維持機能付包装用箱１００の組立方法と開封方法は、前記実施形態と同様であり、同様の効果を有している。折罫線３４に凹面部１０２が２つ設けられているため、側面１４が確実に外側に膨出し、蓋部折曲線３６を逆折りしにくくする力が働き、確実に閉口状態を維持することができる。   The assembling method and the opening method of the packaging box 100 with the closing maintenance function of this embodiment are the same as those of the above embodiment, and have the same effects. Since the crease line 34 is provided with two concave portions 102, the side surface 14 reliably bulges outward, and the force that makes it difficult to reversely fold the lid folding curve 36 works, so that the closed state can be reliably maintained. it can.

次にこの発明の第五実施形態について、図１１に基づいて説明する。なお、ここで、上記実施形態と同様の部材は同様の符号を付して説明を省略する。この実施形態の閉口維持機能付包装用箱１０６は、側面１４と内側上蓋片３２の間に位置する折罫線３４の中心に、凹面部１０８が１つ設けられている。凹面部１０８は、折罫線３４に沿って長細く形成され、折罫線３４の両脇に膨らむ円弧状の一対の凹面部折曲線１１０で囲まれて形成されている。外側上蓋片５６には、折罫線５８と反対側の端面に、凹面部１０８に対向する切欠部１１２が形成されている。   Next, a fifth embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The packaging box 106 with a closing maintenance function of this embodiment is provided with one concave portion 108 at the center of the crease line 34 located between the side surface 14 and the inner upper lid piece 32. The concave surface portion 108 is formed to be elongated along the crease line 34 and is surrounded by a pair of arc-shaped concave surface fold curves 110 that swell on both sides of the crease line 34. The outer upper lid piece 56 is formed with a notch 112 facing the concave surface portion 108 on the end surface opposite to the crease line 58.

この実施形態の閉口維持機能付包装用箱１００の組立方法と開封方法は、前記実施形態と同様であり、同様の効果を有している。折罫線３４に長細くて面積が大きい凹面部１０８が設けられているため、側面１４が確実に外側に膨出し、蓋部折曲線３６を逆折りしにくくする力が確実に働き、確実に閉口状態を維持することができる。   The assembling method and the opening method of the packaging box 100 with the closing maintenance function of this embodiment are the same as those of the above embodiment, and have the same effects. Since the crease line 34 is provided with a long and concave concave surface portion 108, the side surface 14 is surely bulged outward, and the force that makes it difficult to reversely fold the lid folding curve 36 surely works, so that it is reliably closed. The state can be maintained.

なお、この発明の閉口維持機能付包装用箱は、上記各実施形態に限定されるものではなく、各部材の形状は、自由に変更可能である。箱体の形状は収容される商品に合わせて変更可能であり、底部の構造は、ワンタッチで組み立てられるもの等でもよい。蓋部折曲線の切断線の形状も、蓋部折曲線に沿って折り曲げ可能なものであれば自由に変更することができる。   In addition, the packaging box with a closing maintenance function of this invention is not limited to each said embodiment, The shape of each member can be changed freely. The shape of the box can be changed according to the goods to be accommodated, and the structure of the bottom may be one-touch assembled. The shape of the cutting line of the lid folding curve can be freely changed as long as it can be bent along the lid folding curve.

１０ 閉口維持機能付包装用箱
１２ 箱体形成片
１４，１６，１８，２０ 側面
２２ 糊付片
２４，３０，３４ 折罫線
３２ 内側上蓋片
３６ 蓋部折曲線
３６ａ 切断線
３８ 凹面部
４０ 凹面部折曲線
５４，６４，７４ 開封用破断線
５６ 外側上蓋片
７６ 切欠部
８６ 蓋部
DESCRIPTION OF SYMBOLS 10 Packaging box with a closing maintenance function Box body formation piece 14,16,18,20 Side surface 22 Glue piece 24,30,34 Folding line 32 Inner upper cover piece 36 Cover part folding curve 36a Cutting line 38 Concave part 40 Concave part Folding curves 54, 64, 74 Opening break line 56 Outer upper lid piece 76 Notch portion 86 Lid portion

Claims (6)

一枚の箱体形成片からなり、この箱体形成片には、互いに平行に連接された側面と、前記側面同士を糊付けする糊付片と、筒状に組み立てられた前記側面の開口を閉じる上蓋片と、前記側面のうち１つの側面に形成され前記側面の連接方向に沿う蓋部折曲線と、その他の前記側面に形成され前記蓋部折曲線と連続して筒状に組み立てられた前記側面を一周する開封用破断線が設けられ、前記開封用破断線を切断すると前記上蓋片と前記側面の前記開封用破断線よりも上方の部分からなる蓋部が形成され、前記蓋部折曲線を折り曲げて、蓋部を押し上げて開封する包装用箱において、
前記蓋部折曲線が設けられている前記側面と隣接する前記箱体形成片の他部分との境界に各々折罫線が設けられ、前記折罫線は前記箱体形成片の組立状態で稜線となり、いずれかの前記折罫線の途中には前記稜線を面取りした凹面部が形成され、前記蓋部折曲線が設けられている前記側面には、前記凹面部が形成されたことにより前記箱体形成片の組立状態で外側に膨らむ力が作用し、前記蓋部に対して閉じ状態を維持する抵抗力が生じることを特徴とする閉口維持機能付包装用箱。 It consists of a single box-forming piece, and the box-forming piece closes the side surface connected in parallel to each other, the glued piece for gluing the side surfaces, and the opening in the side surface assembled in a cylindrical shape. The upper lid piece, the lid folding curve formed on one side surface of the side surfaces along the connecting direction of the side surfaces, and the other side surfaces formed on the other side surface and continuously assembled with the lid folding curve An opening break line that wraps around the side surface is provided, and when the opening break line is cut, a lid portion that includes the upper lid piece and a portion of the side surface above the opening break line is formed, and the lid portion folding curve In a packaging box that is folded and pushed up to open the lid,
Each crease line is provided at the boundary between the side surface provided with the lid folding curve and the other part of the box forming piece adjacent thereto, and the crease line becomes a ridge line in the assembled state of the box forming piece , either in the middle of the folding borders concave portion chamfered said ridge is formed on the side surface of the lid part folding line is provided, the box body formed piece by the concave portion is formed A packaging box with a closed mouth maintaining function, wherein a force that bulges outward in the assembled state acts and a resistance force is maintained to keep the lid portion closed. 前記凹面部は、前記稜線の両側へ膨らむ一対の凹面部折曲線で囲まれて形成されている請求項１記載の閉口維持機能付包装用箱。   The packaging box with a closed-maintenance function according to claim 1, wherein the concave surface portion is formed by being surrounded by a pair of concave surface folding curves that swell to both sides of the ridge line. 前記蓋部折曲線は、円弧状の切断線が複数個所定間隔をあけて連続して設けられ、前記切断線は膨出する方向が前記蓋部折曲線の延出方向に対して交差する方向に膨出し、隣接する切断線どうしは、互いに反対側に交互に向いている請求項１記載の閉口維持機能付包装用箱。   The lid folding curve is formed by continuously providing a plurality of arc-shaped cutting lines with a predetermined interval, and the cutting line has a direction in which the direction of bulging intersects the extending direction of the lid folding curve The packaging box with a closed-maintenance function according to claim 1, wherein the adjacent cutting lines are alternately directed to opposite sides. 前記凹面部は、前記側面とその両側の側面との間の折罫線で作られる稜線であって、前記蓋部折曲線と直交する稜線上に設けられている請求項１記載の閉口維持機能付包装用箱。   The closed surface maintaining function according to claim 1, wherein the concave surface portion is a ridge line formed by a crease line between the side surface and the side surfaces on both sides thereof, and is provided on a ridge line orthogonal to the lid folding curve. Packaging box. 前記凹面部は、前記側面と前記上蓋片の間の折罫線で作られる稜線上に設けられている請求項１記載の閉口維持機能付包装用箱。   The packaging box with a closed-maintenance function according to claim 1, wherein the concave surface portion is provided on a ridge line formed by a crease line between the side surface and the upper lid piece. 前記凹面部は前記蓋部折曲線に設けられ、前記蓋部が開いたときに前記蓋部折曲線が折り曲げられて作られる稜線上に設けられる請求項１記載の閉口維持機能付包装用箱。
The packaging box with a closing maintenance function according to claim 1, wherein the concave surface portion is provided on the lid folding curve, and is provided on a ridge line formed by bending the lid folding curve when the lid is opened.
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