JP5420089B1 - Packing box - Google Patents

Packing box Download PDF

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JP5420089B1
JP5420089B1 JP2013002841A JP2013002841A JP5420089B1 JP 5420089 B1 JP5420089 B1 JP 5420089B1 JP 2013002841 A JP2013002841 A JP 2013002841A JP 2013002841 A JP2013002841 A JP 2013002841A JP 5420089 B1 JP5420089 B1 JP 5420089B1
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plate portion
top plate
flap
inner locking
bottom plate
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JP2014148309A (en
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宣之 熊澤
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LT LOGISTICS CENTER CO., LTD.
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LT LOGISTICS CENTER CO., LTD.
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Priority to JP2013002841A priority Critical patent/JP5420089B1/en
Priority to PCT/JP2013/081197 priority patent/WO2014109133A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/26—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with extensions of opposite sides mutually interlocking to lie against other sides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/2052—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form characterised by integral closure-flaps
    • B65D5/2057—Inter-engaging self-locking flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/545—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a "cross-like" blank

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

【課題】接着等することなく閉止でき、また手で開封できる梱包箱を実現する。
【解決手段】梱包箱１を形成するブランク２は底板部１０、前板部２０、前天板部３０、後板部４０、後天板部３５、右側板部５０、左側板部５５を有し、右側板部５０は右前後内側係止フラップ５１、５２を有し、左側板部５５は左前後内側係止フラップ５６、５７を有し、右左側板部５０、５５を底板部１０に対し折り曲げ、また右左前後内側係止フラップ５１、５２、５６、５７を折り曲げ、それらが有する係止部５１ｒ、５２ｒ、５６ｒ、５７ｒを係止すると、底板部１０の上方が開口した箱体３を形成でき、さらに後板部４０と後天板部３５を折り曲げたのち前板部２０と前天板部３０を折り曲げて箱体３の開口を塞ぎ、閉止手段で梱包箱１を閉止でき、閉止された梱包箱１を開封する引裂き線２１、２２が前板部２０に形成されている。
【選択図】図１To provide a packaging box that can be closed without adhesion and can be opened by hand.
A blank 2 forming a packaging box 1 has a bottom plate portion 10, a front plate portion 20, a front top plate portion 30, a rear plate portion 40, a rear top plate portion 35, a right side plate portion 50, and a left side plate portion 55. The right side plate portion 50 has right front and rear inner locking flaps 51 and 52, the left side plate portion 55 has left front and rear inner locking flaps 56 and 57, and the right left side plate portions 50 and 55 are bent with respect to the bottom plate portion 10. Further, when the right and left front and rear inner locking flaps 51, 52, 56, and 57 are bent and the locking portions 51r, 52r, 56r, and 57r that they have are locked, the box body 3 that is open above the bottom plate portion 10 can be formed. Further, after folding the rear plate portion 40 and the rear top plate portion 35, the front plate portion 20 and the front top plate portion 30 are folded to close the opening of the box 3, and the packaging box 1 can be closed by the closing means, and the closed packaging box Tear lines 21 and 22 for opening 1 are formed on the front plate 20 There.
[Selection] Figure 1

Description

本発明は、ブランクを糊などで接着またはテープなどで貼着することなく、梱包箱の形成および蓋部の閉止が可能であり、また閉止後の梱包箱を、道具を用いることなく手で開封（開梱）可能であり、さらに梱包箱として再使用することができる梱包箱に関するものである。   The present invention can form a packing box and close the lid without adhering the blank with glue or sticking with tape or the like, and can close the packing box by hand without using a tool. The present invention relates to a packaging box that can be (unpacked) and can be reused as a packaging box.

種々の物品を収容する梱包箱、たとえば配送または保管のための梱包箱は、４つの側面、天面および底面となる各板部を有する１枚のブランクを、折り目線に従って折ることで、梱包箱とするものが一般的である。こうした梱包箱では、隣接する板部同士を糊などで接着して、またはテープで貼着して、梱包箱が形成される（特許文献１〜５）。   A packaging box for storing various articles, for example, a packaging box for delivery or storage, is obtained by folding one blank having four side portions, a top surface, and a bottom plate according to a crease line. Is generally. In such a packaging box, adjacent board parts are adhere | attached with glue etc., or it sticks with a tape, and a packaging box is formed (patent documents 1-5).

これら梱包箱では、蓋部となる天面または側面の板部を糊などで接着して、またはテープで貼着して閉止される一方、開封は、梱包箱の天面および側面の一方または双方に形成されたミシン目を引裂くことで行われるものがある（特許文献３および４）。また天面および底面に位置する板部をテープで貼着などして閉止し、開封時にはこのテープを剥がすものもある（特許文献５）。   In these packing boxes, the top or side plate part that serves as the lid is closed with glue or the like, or attached with tape, and the opening is applied to one or both of the top and side of the packing box. There are those performed by tearing the perforation formed in (Patent Documents 3 and 4). In addition, there is a type in which the plate portions positioned on the top surface and the bottom surface are closed with tape or the like, and the tape is peeled off when opened (Patent Document 5).

しかし、上述した各梱包箱は、物品の収容に際し、糊づけ、またはテープの貼着をしなければ梱包箱を形成することができない。また梱包箱は、閉止が確実で、収容物が外部から見えないことが求められ、各面の境界などに形成される隙間を塞ぐための、糊づけ、またはテープの貼着が必要となることもある。そのため、通信販売業界などにおいては、梱包箱の組み立て時における糊づけ、またはテープの貼着作業、および糊などの材料費の発生でコストが増大するという問題がある。   However, each packaging box described above cannot form a packaging box unless it is glued or affixed with a tape when an article is accommodated. In addition, the packaging box is required to be securely closed and the contents cannot be seen from the outside, and must be glued or taped to close the gaps formed at the boundaries of each surface. There is also. Therefore, in the mail-order sales industry, there is a problem that the cost increases due to the occurrence of gluing at the time of assembling the packaging box or the tape sticking work and the material cost such as glue.

糊づけ、またはテープで貼着された梱包箱は、開封時に糊またはテープを剥がさねばならず、カッターナイフなどの道具を必要とし開封作業が容易でない。さらに、リサイクルするときには、解体した梱包箱からテープを剥がさなければならないこともあり、開封作業の煩雑化および作業コストの増加という問題がある。開封が容易なミシン目を引裂くタイプの梱包箱においても、リサイクルにおけるテープの処理は同様の問題を生じさせる。上記の各問題は、梱包箱を物品保管などに用いる場合でも同様である。また通信販売などでは、稀に商品などの返品が生じるため、開封した梱包箱で返品の商品などを再梱包できることが望まれる。   The packaging box that is glued or attached with tape must be peeled off at the time of opening, requires tools such as a cutter knife, and is not easy to open. Furthermore, when recycling the tape, it may be necessary to remove the tape from the dismantled packaging box, and there are problems that the opening operation is complicated and the operation cost is increased. Even in a packaging box that tears a perforation that is easy to open, the processing of tape in recycling causes the same problem. Each of the above problems is the same even when the packaging box is used for article storage or the like. In mail order sales or the like, returned goods such as merchandise rarely occur, so it is desirable that the returned merchandise can be repackaged in an opened packing box.

特開２０１０−０９５２６２号公報JP 2010-095262 A 特開２００８−０７４４５８号公報JP 2008-074458 A 特許第４８５２９２０号公報Japanese Patent No. 4852920 特許第４９３８４０２号公報Japanese Patent No. 4938402 特開２００４−１６８３５４号公報JP 2004-168354 A

そこで本発明は、糊づけ、またはテープの貼着をすることなく確実に閉止できる梱包箱を実現し、さらに開封に際し、カッターナイフなどの道具を必要とせず、手で開封することができ、リサイクルする際に、梱包箱の解体が容易であり、テープなどの分別が不要であり、ブランクを折り曲げた際にできる隙間が少なく、さらに梱包箱として再使用することができる梱包箱の実現を課題とした。   Therefore, the present invention realizes a packaging box that can be securely closed without gluing or sticking tape, and can be opened by hand without using tools such as a cutter knife when opening, and can be recycled. It is easy to dismantle the packaging box, there is no need to separate tape etc., there are few gaps when folding the blank, and the realization of a packaging box that can be reused as a packaging box is an issue did.

上記課題を解決するために、本発明に係る梱包箱は、該梱包箱を形成するためのブランクが底板部、底板部の前方に連接した前板部および前天板部、底板部の後方に連接した後板部および後天板部、底板部の右方に連接した右側板部、ならびに底板部の左方に連接した左側板部を有している。   In order to solve the above-mentioned problems, a packaging box according to the present invention includes a blank for forming the packaging box, a bottom plate part, a front plate part connected to the front of the bottom plate part, a front plate part, and a rear part of the bottom plate part. The rear plate portion, the rear top plate portion, the right side plate portion connected to the right side of the bottom plate portion, and the left side plate portion connected to the left side of the bottom plate portion.

さらに後天板部は、後板部と相対する側に延出した天板フラップを有し、また右側板部は、前方側に連接した右前内側係止フラップおよび後方側に連接した右後内側係止フラップを有し、左側板部も、前方側に連接した左前内側係止フラップおよび後方側に連接した左後内側係止フラップを有している。右前内側係止フラップ、右後内側係止フラップ、左前内側係止フラップおよび左後内側係止フラップには、それぞれ係止部が形成されている。   Further, the rear top plate portion has a top plate flap extending to the side opposite to the rear plate portion, and the right side plate portion has a right front inner engagement flap connected to the front side and a right rear inner engagement connected to the rear side. The left side plate portion also has a left front inner locking flap connected to the front side and a left rear inner locking flap connected to the rear side. The right front inner locking flap, the right rear inner locking flap, the left front inner locking flap, and the left rear inner locking flap are each formed with a locking portion.

ブランクは、右側板部および左側板部を底板部に対し同じ方向に折り曲げるとともに、右前内側係止フラップおよび左前内側係止フラップを折り曲げて、右前内側係止フラップの係止部と左前内側係止フラップの係止部とを係止することができる。同様に、右後内側係止フラップおよび左後内側係止フラップを折り曲げて、右後内側係止フラップの係止部と左後内側係止フラップの係止部とを係止することができる。   The blank bends the right side plate and left side plate in the same direction with respect to the bottom plate, and bends the front right inner locking flap and the left front inner locking flap to lock the right front inner locking flap and the left front inner locking. The locking part of the flap can be locked. Similarly, the right rear inner locking flap and the left rear inner locking flap can be folded to lock the locking portion of the right rear inner locking flap and the locking portion of the left rear inner locking flap.

上記のように右前内側係止フラップ、左前内側係止フラップ、右後内側係止フラップおよび左後内側係止フラップの係止部を係止すると、底板部の右左辺部において、右側板部および左側板部が略垂直に折り曲げられて位置づけられとともに、右前内側係止フラップおよび左前内側係止フラップが、底板部の前辺部に略接して位置づけられ、また右後内側係止フラップおよび左後内側係止フラップが、底板部の後辺部に略接して位置づけられる。こうしてブランクは、底板部を底部とし、その上方が開口した箱体を形成することができる。   When the locking portion of the right front inner locking flap, the left front inner locking flap, the right rear inner locking flap and the left rear inner locking flap is locked as described above, the right side plate portion and The left side plate part is positioned by being bent substantially vertically, and the right front inner side locking flap and the left front inner side locking flap are positioned substantially in contact with the front side part of the bottom plate part, and the right rear inner side locking flap and the left rear side are positioned. The inner locking flap is positioned substantially in contact with the rear side portion of the bottom plate portion. In this way, the blank can form a box body having the bottom plate portion as a bottom portion and an upper portion thereof opened.

さらに後板部と、右後内側係止フラップおよび左後内側係止フラップとが接するように、後板部を底板部に対し略垂直に折り曲げるとともに、天板フラップが右前内側係止フラップおよび左前内側係止フラップの近傍に、または略接して位置づけられるように、後天板部および天板フラップを折り曲げる。そうすると箱体の開口の略全領域を後天板部によって塞ぐことができる。   Further, the rear plate portion is bent substantially perpendicularly to the bottom plate portion so that the rear plate portion is in contact with the right rear inner locking flap and the left rear inner locking flap, and the top plate flap is bent to the right front inner locking flap and the left front. The rear top plate portion and the top plate flap are folded so as to be positioned near or substantially in contact with the inner locking flap. If it does so, the substantially whole area | region of opening of a box can be block | closed with a back top plate part.

さらに前板部と、右前内側係止フラップおよび左前内側係止フラップとが接するように、前板部を底板部に対し略垂直に折り曲げるとともに、前天板部を折り曲げて後天板部を覆い、さらに前天板部を閉止手段で後天板部に係止して該梱包箱を閉止することができる。   Further, the front plate portion is bent substantially perpendicularly to the bottom plate portion so that the front plate portion, the right front inner locking flap and the left front inner locking flap are in contact with each other, and the front top plate portion is bent to cover the rear top plate portion. The packaging box can be closed by locking the front top plate portion to the rear top plate portion by the closing means.

閉止された該梱包箱を開封するための引裂き線は前板部に形成されている。引裂き線は第一の引裂き線および第二の引裂き線からなり、第一の引裂き線および第二の引裂き線は、底板部側のそれぞれの他端から、前天板部側のそれぞれの一端に向け、互いの間隔が徐々に拡がるように形成されている。第一の引裂き線の他端および第二の引裂き線の他端は前板部の幅方向の中央部側に位置し、第一の引裂き線の他端と第二の引裂き線の他端との間には引裂き始点部が介在しており、引裂き始点部を始点として引裂き線を引裂くことで、前天板部をブランクから分離することができる。したがって、閉止手段を係止して閉止された該梱包箱を、引裂き始点部を始点として引裂き線を引裂くことによって、前天板部を閉止手段によって後天板部に係止させた状態で該梱包箱を開封できる。A tear line for opening the closed packaging box is formed in the front plate portion. The tear line is composed of a first tear line and a second tear line, and the first tear line and the second tear line are directed from each other end on the bottom plate side to one end on the front top plate side. The distance between each other is gradually increased. The other end of the first tear line and the other end of the second tear line are located on the center side in the width direction of the front plate part, and the other end of the first tear line and the other end of the second tear line A tear start point is interposed between the two, and the front top plate can be separated from the blank by tearing the tear line starting from the tear start point. Therefore, the packing box closed by locking the closing means is torn in the tear line starting from the tear start point, and the packing box in the state where the front top plate is locked to the rear top plate by the closing means. You can open the box.

ところで開封された該梱包箱では、右左前内側係止フラップが底板部の前辺部において互いに係止している。これら右左前内側係止フラップの近傍に天板フラップを位置づけることで、開封された該梱包箱を再び閉止することができる。   By the way, in the opened packaging box, the right and left front inner locking flaps are locked to each other at the front side portion of the bottom plate portion. By positioning the top plate flap in the vicinity of these right and left front inner side locking flaps, the opened packing box can be closed again.

ただし前天板部は、前天板部と連接した部分および底板部と連接した部分に分離されているため、該梱包箱の再閉止においては、テープなどを用いて閉止する必要がある。しかし該梱包箱の再使用は、物品の返送などの場合に行われるものであり、テープの貼着作業などの材料費および作業費などは問題とならない。   However, since the front top plate portion is separated into a portion connected to the front top plate portion and a portion connected to the bottom plate portion, the packaging box needs to be closed using a tape or the like. However, the reuse of the packaging box is performed in the case of returning the article, and there is no problem in material costs and work costs such as tape attaching work.

すなわち該梱包箱は、ブランクを折り曲げて組み立てるだけで（テープの貼着や糊づけすることなく）容易に組み立てることができ、またカッターなどの道具を用いず手だけで開封することができる。また右左前内側係止フラップと前板部とが重なるから、そして右左後内側係止フラップと後板部とが重なるから、底板部と、前板部、後板部、右側板部および左側板部との境界に隙間や切れ目が生じない。しかも該梱包箱は、開封後に梱包箱として再使用することができる（請求項１）。   That is, the packaging box can be easily assembled only by folding the blank (without attaching or gluing the tape), and can be opened only by hand without using a tool such as a cutter. Also, the right and left front inner locking flaps and the front plate overlap, and the right and left rear inner locking flaps and the rear plate overlap, so the bottom plate, front plate, rear plate, right plate, and left plate There are no gaps or breaks at the boundary with the part. Moreover, the packaging box can be reused as a packaging box after opening (Claim 1).

閉止手段は、前天板部の先端部に形成された閉止爪と、閉止爪に形成された切抜き部と、後天板部に形成された閉止スリットと、閉止スリットに形成された舌部とを含んでいる。したがって、閉止爪を閉止スリットに挿入し係止させると、舌部が切抜き部に係止して、該梱包箱の閉止をより確実にすることができる（請求項１）。ここでたとえば、閉止スリットが後天板部の幅方向の中央部に形成され、かつ前天板部の縦幅が底板部の略二分の一に形成されていれば、該梱包箱が閉止されると、閉止スリットが前天板部および後天板部で構成される天板部の中央部に位置づけられる（請求項２）。The closing means includes a closing claw formed at the front end portion of the front top plate portion, a cutout portion formed in the closing claw, a closing slit formed in the rear top plate portion, and a tongue portion formed in the closing slit. It is out. Therefore, when the closing claw is inserted into the closing slit and locked, the tongue portion is locked to the cutout portion, and the packaging box can be more reliably closed (Claim 1). Here, for example, if the closing slit is formed in the center portion in the width direction of the rear top plate portion, and the vertical width of the front top plate portion is formed in substantially half of the bottom plate portion, the packaging box is closed. The closing slit is positioned at the center of the top plate portion constituted by the front top plate portion and the rear top plate portion (Claim 2).

さらに閉止爪は、爪本体部および爪本体部と前天板部との間に介在する接続部を有し、爪本体部が接続部近傍において、後天板部に形成された閉止スリットの幅よりも若干広い最大幅部を有する一方、爪本体部の幅が爪先部に向け狭くなっていてもよい（請求項３）。このような閉止爪を閉止スリットに挿入すると、閉止爪は、幅の狭い爪先部が閉止スリットを通過し、さらに最大幅部が閉止スリットを通過することができる。しかし、閉止爪を閉止スリットから抜こうとすると、最大幅部が閉止スリットに阻まれて、閉止爪を抜くことができない。すなわち該梱包箱は、閉止が容易な一方、不用意な開封を防ぐことができる。   Furthermore, the closing claw has a nail body portion and a connecting portion interposed between the nail body portion and the front top plate portion, and the nail body portion is closer to the connecting portion than the width of the closing slit formed in the rear top plate portion. While having a slightly wider maximum width portion, the width of the nail body portion may narrow toward the toe portion (Claim 3). When such a closing claw is inserted into the closing slit, the narrow claw tip portion of the closing claw can pass through the closing slit, and the maximum width portion can pass through the closing slit. However, when trying to remove the closing claw from the closing slit, the maximum width portion is blocked by the closing slit, and the closing claw cannot be removed. That is, the packaging box can be easily closed, but can prevent inadvertent opening.

右前内側係止フラップを折り曲げるための右前内側係止折り目部と右後内側係止フラップを折り曲げるための右後内側係止折り目部との間隔を、底板部の右辺部の長さよりも若干狭くすることで、また左前内側係止フラップを折り曲げるための左前内側係止折り目部と左後内側係止フラップを折り曲げるための左後内側係止折り目部との間隔を、底板部の左辺部の長さよりも若干狭くすることで、右および左前内側係止フラップが前板部の内面と接するようにすることができ、また右および左後内側係止フラップが後板部の内面と接するようにすることができる（請求項４）。   The distance between the right front inner locking fold for folding the right front inner locking flap and the right rear inner locking fold for folding the right rear inner locking flap is slightly narrower than the length of the right side of the bottom plate. In addition, the distance between the left front inner latching fold for folding the left front inner latching flap and the left rear inner latching fold for folding the left rear inner latching flap is determined by the length of the left side of the bottom plate. The right and left front inner locking flaps can be in contact with the inner surface of the front plate portion, and the right and left rear inner locking flaps can be in contact with the inner surface of the rear plate portion. (Claim 4).

第一の引裂き線は、前板部と前天板部との境界の右側端部側と、底板部と前板部との境界のほぼ中央部との間に形成され、第二の引裂き線は、前板部と前天板部との境界の左側端部側と、底板部と前板部との境界のほぼ中央部との間に形成され、底板部と前板部との境界側では、第一の引裂き線と第二の引裂き線との間に引裂き始点部が形成されている（請求項５）。このような構成であれば、引裂き始点部の近傍を指先などで把持して、引裂き線を引裂けば、カッターナイフなどの道具を使うことなく該梱包箱を開封することができる。 The first tear line is formed between the right side end side of the boundary between the front plate portion and the front top plate portion and the substantially central portion of the boundary between the bottom plate portion and the front plate portion, and the second tear line is , Formed between the left end side of the boundary between the front plate portion and the front plate portion and the substantially central portion of the boundary between the bottom plate portion and the front plate portion, on the boundary side between the bottom plate portion and the front plate portion, pull tear starting part between the first tear line and the second tear line is formed (claim 5). With such a configuration, the packaging box can be opened without using a tool such as a cutter knife by gripping the vicinity of the tear starting point with a fingertip or the like and tearing the tear line.

右側板部は底板部と相対する側に連接した右天板内フラップを有し、また左側板部は底板部と相対する側に連接した左天板内フラップを有している（請求項１）。したがって、前天板部および後天板部を折り曲げて箱体の開口を塞ぐ際、右天板内フラップおよび左天板内フラップは後天板部の内面と接する。 Right side plate portion has a right top plate flaps articulated on opposite side to the bottom plate portion, also the left side plate portion that has a left top board in flaps articulated on opposite side to the bottom plate portion (claim 1 ). Therefore, when closing the opening of the box by folding the front top plate portion and a rear casing portion, right top plate flaps and Hidaritenban the flaps that Sessu the inner surface of the rear casing portion.

かかる構成を有する梱包箱は、箱体における前板部側の縁が前板部および前天板部で覆われ（後板部側の縁も同様）、そして右側板部側の縁が右側板部および右天板内フラップで覆われたうえに天板部で覆われるから（左側板部側の縁も同様）、いずれも隙間や切れ目が生じない。もちろん、ブランク（該梱包箱）は段ボールまたは厚紙で形成することができる（請求項６）。 In the packaging box having such a configuration, the edge on the front plate part side in the box is covered with the front plate part and the front top plate part (the same applies to the edge on the rear plate part side), and the edge on the right plate part side is the right plate part In addition, since it is covered with the flap on the right top plate and then covered with the top plate (the same is true for the edge on the left side of the plate), there is no gap or break. Of course, the blank (the packaging box) can be formed of cardboard or cardboard (Claim 6 ).

上記構成を有する本発明にかかる梱包箱によれば、梱包箱の組み立て時における糊づけ作業、テープの貼着作業、および閉止のための糊などが不要となるため、梱包箱の組み立てなどのコストを低減することができるとともに、ブランクを折り曲げた際にできる隙間を少なくすることができ、またカッターナイフなどの道具を必要とせず、手で開封することができるため、作業が容易で開封作業のコストを低減することができ、さらに開封後においても解体した梱包箱からテープなどを取り除く必要がないため、リサイクル作業のコストを低減することができる。しかも本発明にかかる梱包箱は、開封後に梱包箱として再使用することができる。   According to the packaging box according to the present invention having the above-described configuration, the pasting work at the time of assembling the packaging box, the tape sticking work, the glue for closing, and the like are not required, so the cost of assembling the packaging box etc. Can be reduced, and the gaps that can be created when the blank is folded can be reduced, and since it can be opened by hand without the need for tools such as a cutter knife, The cost can be reduced, and further, since it is not necessary to remove the tape or the like from the disassembled packing box even after opening, the cost of the recycling work can be reduced. And the packaging box concerning this invention can be reused as a packaging box after opening.

本発明の一実施例にかかる梱包箱を形成するためのブランクの概略平面構成を示す図である。It is a figure which shows the schematic plane structure of the blank for forming the packaging box concerning one Example of this invention. 図１に示すブランクが有する閉止爪、閉止スリットおよび右左前後内側係止フラップの概略構成を説明するための図である。It is a figure for demonstrating schematic structure of the closing nail | claw which the blank shown in FIG. 図１に示すブランクが有する右前内側係止フラップの構成を説明するための図である。It is a figure for demonstrating the structure of the right front inner side latching flap which the blank shown in FIG. 1 has. 図１に示すブランクにおける、底板部に対する右側板部および左側板部の折り曲げ、ならびに右後内側係止フラップと左後内側係止フラップとの係止などを説明するための図である（同図（ａ）は係止直前を示し、同図（ｂ）は係止した状態を示す。）。FIG. 2 is a diagram for explaining bending of a right side plate portion and a left side plate portion with respect to a bottom plate portion and locking of a right rear inner locking flap and a left rear inner locking flap in the blank shown in FIG. (A) shows the state immediately before locking, and FIG. 図１に示すブランクにおける、後天板部の折り曲げ、前板部、前天板部および引裂き線などを説明するための図である。It is a figure for demonstrating the bend of a back top board part, the front board part, a front top board part, a tear line, etc. in the blank shown in FIG. 図１に示すブランクで形成される梱包箱の閉止、および引裂き線による開封を説明するための図である。It is a figure for demonstrating closing of the packaging box formed with the blank shown in FIG. 1, and opening by a tear line. 図１に示すブランクで形成された梱包箱を開封した状態を説明するための図である。It is a figure for demonstrating the state which opened the packaging box formed with the blank shown in FIG. 図１に示すブランクで形成された梱包箱の再使用を説明するための図である（図８（ａ）、（ｂ））。It is a figure for demonstrating reuse of the packaging box formed with the blank shown in FIG. 1 (FIG. 8 (a), (b)).

以下、図面を参照して本発明にかかる梱包箱について説明する。   Hereinafter, a packaging box according to the present invention will be described with reference to the drawings.

＜梱包箱を形成するためのブランクの概略構成＞
本発明の一実施例にかかる梱包箱１を、それを形成するブランク２とともに説明する。図１にその平面概略構成を示すブランク２は、底板部１０、前板部２０、前天板部３０、後天板部３５、後板部４０、右側板部５０および左側板部５５を有しており、後天板部３５は、後板部４０と相対する側に延出した天板フラップ３７を有している。 <Schematic configuration of blank for forming a packing box>
The packaging box 1 concerning one Example of this invention is demonstrated with the blank 2 which forms it. 1 has a bottom plate portion 10, a front plate portion 20, a front top plate portion 30, a rear top plate portion 35, a rear plate portion 40, a right side plate portion 50, and a left side plate portion 55. The rear top plate portion 35 has a top plate flap 37 extending to the side facing the rear plate portion 40.

底板部１０の右辺部１０ａは底板部１０と右側板部５０との境界（折り目部）となっており、右辺部１０ａと相対する左辺部１０ｂは底板部１０と左側板部５５との境界（折り目部）となっている。また底板部１０の前辺部１０ｃは底板部１０と前板部２０との境界（折り目部）となっており、底板部１０の後辺部１０ｄは底板部１０と後板部４０との境界（折り目部）となっている。   The right side portion 10a of the bottom plate portion 10 is a boundary (folded portion) between the bottom plate portion 10 and the right side plate portion 50, and the left side portion 10b opposite to the right side portion 10a is a boundary between the bottom plate portion 10 and the left side plate portion 55 ( Crease). The front side portion 10 c of the bottom plate portion 10 is a boundary (folded portion) between the bottom plate portion 10 and the front plate portion 20, and the rear side portion 10 d of the bottom plate portion 10 is a boundary between the bottom plate portion 10 and the rear plate portion 40. (Folded part).

前板部２０は、底板部１０と前天板部３０との間に介在し、後板部４０は、底板部１０と後天板部３５との間に介在している。前天板部３０と前板部２０との境界２０ａは両者間の折り目部となっており、後天板部３５と後板部４０との境界４０ａは両者間の折り目部となっている。   The front plate portion 20 is interposed between the bottom plate portion 10 and the front top plate portion 30, and the rear plate portion 40 is interposed between the bottom plate portion 10 and the rear top plate portion 35. A boundary 20a between the front top plate portion 30 and the front plate portion 20 is a fold portion between them, and a boundary 40a between the rear top plate portion 35 and the rear plate portion 40 is a fold portion therebetween.

右側板部５０は、底板部１０と右天板内フラップ５３との間に介在し、左側板部５５は、底板部１０と左天板内フラップ５８との間に介在している。右天板内フラップ５３と右側板部５０との境界５０ａは両者間の折り目部となっており、左天板内フラップ５８と左側板部５５との境界５５ａは両者間の折り目部となっている。   The right side plate portion 50 is interposed between the bottom plate portion 10 and the right top plate flap 53, and the left side plate portion 55 is interposed between the bottom plate portion 10 and the left top plate flap 58. The boundary 50a between the right top plate flap 53 and the right side plate portion 50 is a fold portion between them, and the boundary 55a between the left top plate flap 58 and the left side plate portion 55 is a fold portion therebetween. Yes.

右側板部５０は、前板部２０側に連接した右前内側係止フラップ５１、および後板部４０側に連接した右後内側係止フラップ５２を有している。右側板部５０と右前内側係止フラップ５１との境界は両者間の折り目部（右前内側係止折り目部５１ａ）となっており、右側板部５０と右後内側係止フラップ５２との境界は両者間の折り目部（右後内側係止折り目部５２ａ）となっている。   The right side plate portion 50 has a right front inner side locking flap 51 connected to the front plate portion 20 side and a right rear inner side locking flap 52 connected to the rear plate portion 40 side. The boundary between the right side plate portion 50 and the right front inner side locking flap 51 is a fold portion (right front inner side inner locking fold portion 51a), and the boundary between the right side plate portion 50 and the right rear inner side locking flap 52 is It is a crease between the two (the right rear inner locking crease 52a).

また、左側板部５５は、前板部２０側に連接した左前内側係止フラップ５６、および後板部４０側に連接した左後内側係止フラップ５７を有している。左側板部５５と左前内側係止フラップ５６との境界は両者間の折り目部（左前内側係止折り目部５６ａ）となっており、左側板部５５と左後内側係止フラップ５７との境界は両者間の折り目部（左後内側係止折り目部５７ａ）となっている。   Further, the left side plate portion 55 has a left front inner side locking flap 56 connected to the front plate portion 20 side and a left rear inner side locking flap 57 connected to the rear plate portion 40 side. The boundary between the left side plate portion 55 and the left front inner side locking flap 56 is a crease (left front inner side locking fold portion 56a) between them, and the boundary between the left side plate portion 55 and the left rear inner side locking flap 57 is It is a crease between the two (left rear inner locking crease 57a).

右天板内フラップ５３は、その幅が右側板部５０の幅よりも若干狭く、その前部端５３ａが右前内側係止折り目部５１ａよりも若干右後内側係止フラップ５２側に位置している。左天板内フラップ５８の前部端５８ａも同様である。   The right top plate flap 53 is slightly narrower than the width of the right side plate portion 50, and its front end 53a is positioned slightly closer to the right rear inner locking flap 52 side than the right front inner locking fold portion 51a. Yes. The same applies to the front end 58a of the left top plate flap 58.

ブランク２は、典型的には段ボールで形成されるが、段ボールに限定されず、厚紙などで形成されたものであってもよい。   The blank 2 is typically formed of cardboard, but is not limited to cardboard and may be formed of cardboard or the like.

＜前板部と引裂き線＞
前板部２０には、ミシン目で形成された第一の引裂き線２１および第二の引裂き線２２が設けられている。第一の引裂き線２１は、その一端２１ａが前板部２０と前天板部３０との境界２０ａの、右前内側係止フラップ５１側の端部に位置し、その他端２１ｂが底板部１０の前辺部１０ｃの略中央部に位置している。第二の引裂き線２２は、その一端２２ａが境界２０ａの左前内側係止フラップ５６側の端部に位置し、その他端２２ｂが前辺部１０ｃの略中央部に位置している。ここで、第一の引裂き線２１の他端２１ｂと、第二の引裂き線２２の他端２２ｂとの間には、引裂き始点部２３が形成されている。引裂き始点部２３は、略半円形状の引裂き切欠き２３ｘを有している。 <Front plate and tear line>
The front plate portion 20 is provided with a first tear line 21 and a second tear line 22 formed by perforations. One end 21 a of the first tear line 21 is located at the end of the boundary 20 a between the front plate portion 20 and the front top plate portion 30 on the right front inner locking flap 51 side, and the other end 21 b is in front of the bottom plate portion 10. It is located at the approximate center of the side 10c. One end 22a of the second tear line 22 is positioned at the end of the boundary 20a on the left front inner locking flap 56 side, and the other end 22b is positioned at a substantially central portion of the front side portion 10c. Here, a tear start point portion 23 is formed between the other end 21 b of the first tear line 21 and the other end 22 b of the second tear line 22. The tear starting point portion 23 has a substantially semicircular tear notch 23x.

＜天板部＞
天板部は前天板部３０および後天板部３５で構成される。前天板部３０は、その先端部３１の中央近傍に閉止爪３２を備えており、また後天板部３５は、その中央領域に閉止スリット３６を有しており、閉止爪３２を閉止スリット３６に挿入することで、天板部によって梱包箱１を閉止することができる。 <Top plate>
The top plate portion is composed of a front top plate portion 30 and a rear top plate portion 35. The front top plate portion 30 includes a closing claw 32 in the vicinity of the center of the front end portion 31, and the rear top plate portion 35 has a closing slit 36 in the central region, and the closing claw 32 is formed into the closing slit 36. By inserting, the packaging box 1 can be closed by the top plate portion.

後天板部３５の縦幅は、底板部１０の縦幅（底板部１０の前辺部１０ｃと後辺部１０ｄとの間隔である）よりもわずかに狭い。一方、前天板部３０の縦幅（境界２０ａと、この境界２０ａと相対する辺３０ａとの間隔である）は、底板部１０の縦幅の約二分の一である（閉止爪３２を含まず）。したがって、梱包箱１を閉止するときに、前天板部３０と後天板部３５とが重なる領域の幅は、底板部１０の縦幅の約５割となる。なお前天板部３０および後天板部３５の構成は、上記の構成に限定されない。   The vertical width of the rear top plate portion 35 is slightly narrower than the vertical width of the bottom plate portion 10 (the distance between the front side portion 10c and the rear side portion 10d of the bottom plate portion 10). On the other hand, the vertical width of the front top plate portion 30 (the interval between the boundary 20a and the side 30a facing the boundary 20a) is about one half of the vertical width of the bottom plate portion 10 (not including the closing claws 32). ). Therefore, when the packaging box 1 is closed, the width of the region where the front top plate portion 30 and the rear top plate portion 35 overlap is about 50% of the vertical width of the bottom plate portion 10. In addition, the structure of the front top plate part 30 and the back top plate part 35 is not limited to said structure.

＜閉止爪および閉止スリットについて＞
図１および図２に示すように、前天板部３０の先端部３１の中央近傍には閉止爪３２が形成されており、閉止爪３２は、接続部３２ｊ、爪本体部３２ｔ、最大幅部３２ａ、爪先部３２ｂ、および切抜き部３２ｓを有している。これら閉止爪３２の構成要素は、何れも前天板部３０の先端部３１でセンター振り分けされている。 <About the claw and the closing slit>
As shown in FIGS. 1 and 2, a closing claw 32 is formed in the vicinity of the center of the front end portion 31 of the front top plate portion 30. The closing claw 32 includes a connection portion 32j, a claw body portion 32t, and a maximum width portion 32a. , A toe portion 32b, and a cutout portion 32s. All of the constituent elements of the closing claws 32 are centered at the front end portion 31 of the front top plate portion 30.

接続部３２ｊは爪本体部３２ｔと前天板部３０との間に介在し（図２）、爪本体部３２ｔは、接続部３２ｊ近傍が最も幅広の最大幅部３２ａとなっており、爪先部３２ｂに向け幅が狭くなっている。切抜き部３２ｓは、接続部３２ｊの中央部分において、閉止爪３２および前天板部３０にまたがる細長いスリット形状をなしている。   The connecting portion 32j is interposed between the claw body portion 32t and the front top plate portion 30 (FIG. 2), and the claw body portion 32t has the widest maximum width portion 32a in the vicinity of the connecting portion 32j, and the toe portion 32b. The width is narrow toward The cutout portion 32 s has an elongated slit shape that spans the closing claw 32 and the front top plate portion 30 in the central portion of the connection portion 32j.

後天板部３５の閉止スリット３６は、主切込線部３６ａ、副切込線部３６ｂ、切抜き部３６ｓ、間隙３６ｓ’および舌部３６ｔを有している（図２）。これら閉止スリット３６の構成要素は、何れも後天板部３５の横幅方向でセンター振り分けされている。   The closing slit 36 of the rear top plate portion 35 has a main cut line portion 36a, a sub cut line portion 36b, a cutout portion 36s, a gap 36s', and a tongue portion 36t (FIG. 2). All the components of the closing slit 36 are centered in the lateral width direction of the rear top plate portion 35.

主切込線部３６ａの両端には、境界４０ａから離れる方向に副切込線部３６ｂが連続して形成されている。主切込線部３６ａと境界４０ａとの間隔は底板部１０の縦幅の約５割であり、前天板部３０と後天板部３５とを重ねて梱包箱１を閉止するときに、閉止爪３２を主切込線部３６ａに挿入することができる。主切込線部３６ａの長さは、閉止爪３２の最大幅部３２ａの幅よりも若干短い。したがって閉止爪３２は、閉止スリット３６に容易に挿入できる一方、挿入後には、最大幅部３２ａが主切込線部３６ａに阻まれて、閉止スリット３６から容易に抜くことができない（天板部を確実に閉止することができる。）。   Sub-cut line portions 36b are continuously formed at both ends of the main cut line portion 36a in a direction away from the boundary 40a. The interval between the main cut line portion 36a and the boundary 40a is about 50% of the vertical width of the bottom plate portion 10, and when the front top plate portion 30 and the rear top plate portion 35 are overlapped to close the packaging box 1, a closing claw 32 can be inserted into the main cut line portion 36a. The length of the main cut line portion 36 a is slightly shorter than the width of the maximum width portion 32 a of the closing claw 32. Accordingly, the closing claw 32 can be easily inserted into the closing slit 36, but after insertion, the maximum width portion 32a is blocked by the main cut line portion 36a and cannot be easily removed from the closing slit 36 (top plate portion). Can be securely closed.)

切抜き部３６ｓは、主切込線部３６ａから、天板フラップ３７側に向け形成されており、その横幅は閉止爪３２の接続部３２ｊの横幅よりも狭い。切抜き部３６ｓの中央部には、舌部３６ｔが主切込線部３６ａに向け延出し、その先端と主切込線部３６ａとの間に間隙３６ｓ’が形成されており、舌部３６ｔの横幅は閉止爪３２の切抜き部３２ｓの横幅よりも若干狭い。切抜き部３６ｓの縦幅は閉止爪３２の接続部３２ｊの長さより若干長く、舌部３６ｔの長さは切抜き部３６ｓの縦幅より若干短い。したがって、閉止爪３２を閉止スリット３６に挿入すると、舌部３６ｔが閉止爪３２の切抜き部３２ｓに係止して、閉止爪３２の閉止スリット３６からの離脱がより困難となる（天板部の閉止がより確実なものとなる。）。   The cut-out portion 36s is formed from the main cut-line portion 36a toward the top plate flap 37 side, and the lateral width thereof is narrower than the lateral width of the connection portion 32j of the closing claw 32. At the center of the cutout portion 36s, a tongue portion 36t extends toward the main cut line portion 36a, and a gap 36s' is formed between the tip and the main cut line portion 36a. The lateral width is slightly narrower than the lateral width of the cutout portion 32 s of the closing claw 32. The vertical width of the cutout portion 36s is slightly longer than the length of the connection portion 32j of the closing claw 32, and the length of the tongue portion 36t is slightly shorter than the vertical width of the cutout portion 36s. Therefore, when the closing claw 32 is inserted into the closing slit 36, the tongue portion 36t is locked to the cutout portion 32s of the closing claw 32, so that it becomes more difficult to remove the closing claw 32 from the closing slit 36 (the top plate portion). The closure will be more secure.)

＜係止フラップについて＞
次に右前後内側係止フラップ５１、５２および左前後内側係止フラップ５６、５７について、右前内側係止フラップ５１を例に説明する。 <About locking flaps>
Next, the right front inner locking flaps 51 and 52 and the left front and rear inner locking flaps 56 and 57 will be described by taking the right front inner locking flap 51 as an example.

図１および図２に示すように、右前内側係止フラップ５１は、右側板部５０の前方側（前板部２０側）に連接し、高さが右側板部５０の高さ（右前内側係止折り目部５１ａの長さ）と等しく、長さが底板部１０の横幅（前辺部１０ｃの長さ）の６割強である。   As shown in FIGS. 1 and 2, the right front inner side locking flap 51 is connected to the front side (front plate part 20 side) of the right side plate part 50, and the height is the height of the right side plate part 50 (right front inner side engagement). The length of the bottom fold portion 51a is equal to or more than 60% of the width of the bottom plate portion 10 (the length of the front side portion 10c).

図３に示すように、右前内側係止フラップ５１では、右前内側係止折り目部５１ａの右天板内フラップ５３側端と、右前内側係止フラップ５１の先端辺５１ｂの一端との間が上部辺５１ｃとなっており、上部辺５１ｃと相対する底部辺５１ｄは、上部辺５１ｃよりも短い。上部辺５１ｃと底部辺５１ｄとの長さの相違によって生じる領域（先端側領域）が右前内側係止フラップ５１の係止部５１ｒである。   As shown in FIG. 3, in the right front inner locking flap 51, the upper part is between the right top plate inner flap 53 side end of the right front inner locking fold 51 a and one end of the front end side 51 b of the right front inner locking flap 51. The bottom side 51d that is the side 51c and faces the top side 51c is shorter than the top side 51c. A region (tip region) generated by the difference in length between the upper side 51 c and the bottom side 51 d is a locking portion 51 r of the right front inner locking flap 51.

係止部５１ｒには、谷部５１ｎを有する噛み合わせ部５１ｓが底部辺５１ｄ側に形成されており、谷部５１ｎよりも先端側が係止片５１ｔである。噛み合わせ部５１ｓは、谷部５１ｎにおいて最も幅が狭く、底部辺５１ｄ側に向けて幅が広い略Ｖ字形状を成し、谷部５１ｎから係止片５１ｔ側には丸みを帯びた縁部５１ｆが形成され、谷部５１ｎと底部辺５１ｄの先端５１ｘとの間には斜辺５１ｅが形成されている。係止片５１ｔの高さは右前内側係止フラップ５１の高さの７〜８割である。   An engaging portion 51s having a trough portion 51n is formed on the bottom side 51d side of the engaging portion 51r, and the front end side of the engaging portion 51n is an engaging piece 51t. The engaging portion 51s has a substantially V-shape that is narrowest in the valley portion 51n and wide toward the bottom side 51d side, and has a rounded edge from the valley portion 51n to the locking piece 51t side. 51f is formed, and a hypotenuse 51e is formed between the valley 51n and the tip 51x of the bottom side 51d. The height of the locking piece 51 t is 70 to 80% of the height of the right front inner locking flap 51.

谷部５１ｎと上部辺５１ｃとの間隔（谷部５１ｎにおける右前内側係止フラップ５１の高さ）は、右前内側係止フラップ５１の高さ（右前内側係止折り目部５１ａの長さと等しい）の二分の一であり、谷部５１ｎと右前内側係止折り目部５１ａとの間の長さは底板部１０の横幅の二分の一である。   The distance between the valley 51n and the upper side 51c (the height of the right front inner locking flap 51 in the valley 51n) is the height of the right front inner locking flap 51 (equal to the length of the right front inner locking fold 51a). The length between the valley portion 51n and the right front inner locking fold portion 51a is one half of the width of the bottom plate portion 10.

図２に示すように、右後内側係止フラップ５２は、右側板部５０を間にして、右前内側係止フラップ５１と線対称で同様に形成され、そして左後内側係止フラップ５７は、右後内側係止フラップ５２と同様に形成されている。但し左後内側係止フラップ５７は、底部辺５７ｄの長さが左後内側係止フラップ５７の長さに等しい一方、上部辺５７ｃが底部辺５７ｄより短くなっている点、および噛み合わせ部５７ｓが上部辺５７ｃ側に形成されている点において、右後内側係止フラップ５２と相違する。   As shown in FIG. 2, the right rear inner locking flap 52 is formed in the same manner as the right front inner locking flap 51 with the right side plate portion 50 therebetween, and the left rear inner locking flap 57 is It is formed in the same manner as the right rear inner locking flap 52. However, the left rear inner side locking flap 57 has a length of the bottom side 57d equal to the length of the left rear inner side locking flap 57, while the upper side 57c is shorter than the bottom side 57d and the meshing part 57s. Is different from the right rear inner locking flap 52 in that it is formed on the upper side 57c side.

左前内側係止フラップ５６は、左側板部５５を間にして、左後内側係止フラップ５７と線対称で同様に形成されている。但し、左前内側係止フラップ５６は、底部辺５６ｄ側の噛み合わせ部５６ｓと相対する部位に半円形状切り欠き部５６ｗが形成されている点、および底部辺５６ｄの先端側にブランク２の裁断の都合で生じる矩形状の切り欠き部５６ｙを有する点において、左後内側係止フラップ５７と相違する。なお半円形状切り欠き部５６ｗは、梱包箱１における引裂き始点部２３の内部側に位置するようになっている。   The left front inner locking flap 56 is formed in the same manner as the left rear inner locking flap 57 in line symmetry with the left side plate portion 55 therebetween. However, the front left inner side latching flap 56 has a semicircular cutout portion 56w formed at a portion facing the meshing portion 56s on the bottom side 56d side, and the blank 2 is cut at the front end side of the bottom side 56d. It differs from the left rear inner side latching flap 57 in that it has a rectangular cutout portion 56y that occurs due to the circumstances described above. The semicircular cutout portion 56w is located on the inner side of the tear start point portion 23 in the packaging box 1.

＜＜梱包箱の組み立てについて＞＞
＜右左前後内側係止フラップの係止と箱体の形成について＞
次に右前後内側係止フラップ５１、５２および左前後内側係止フラップ５６、５７の係止について、右後内側係止フラップ５２と左後内側係止フラップ５７との係止を例に説明する。 << About assembly of packing box >>
<Regarding locking of right and left front and rear inner locking flaps and formation of box>
Next, with regard to the locking of the right front and rear inner locking flaps 51 and 52 and the left front and rear inner locking flaps 56 and 57, the locking between the right rear inner locking flap 52 and the left rear inner locking flap 57 will be described as an example. .

図４（ａ）に示すように、右側板部５０および左側板部５５が底板部１０と直交するように、底板部１０の右辺部１０ａおよび左辺部１０ｂを折り目部として谷折りする。このとき右後内側係止フラップ５２を右後内側係止折り目部５２ａで折り曲げて、および左後内側係止フラップ５７を左後内側係止折り目部５７ａで折り曲げて、右後内側係止フラップ５２および左後内係止フラップ５７を底板部１０の後辺部１０ｄ上に位置づけるようにする。   As shown in FIG. 4A, valley folding is performed using the right side portion 10 a and the left side portion 10 b of the bottom plate portion 10 as crease portions so that the right side plate portion 50 and the left side plate portion 55 are orthogonal to the bottom plate portion 10. At this time, the right rear inner locking flap 52 is bent at the right rear inner locking fold 52a, and the left rear inner locking flap 57 is bent at the left rear inner locking fold 57a. The left rear inner locking flap 57 is positioned on the rear side portion 10 d of the bottom plate portion 10.

さらに係止部５２ｒと係止部５７ｒとを係止することで、右後内側係止フラップ５２と左後内側係止フラップ５７とを相互に係止することができる。その結果、図４（ｂ）に示すように、底板部１０の右辺部１０ａおよび左辺部１０ｂには、右側板部５０および左側板部５５が立設し、後辺部１０ｄ上には右後内側係止フラップ５２および左後内側係止フラップ５７が底板部１０と直交して位置づけられる。   Further, by locking the locking portion 52r and the locking portion 57r, the right rear inner locking flap 52 and the left rear inner locking flap 57 can be locked to each other. As a result, as shown in FIG. 4 (b), the right side plate portion 50a and the left side plate portion 55 are erected on the right side portion 10a and the left side portion 10b of the bottom plate portion 10, and the right rear portion is placed on the rear side portion 10d. The inner locking flap 52 and the left rear inner locking flap 57 are positioned orthogonal to the bottom plate portion 10.

なお図４（ｂ）では、右後内側係止フラップ５２の係止片５２ｔおよび左後内側係止フラップ５７の係止片５７ｔを後天板部３５側に位置づけているが、係止片５２ｔおよび係止片５７ｔを底板部１０側に位置づけることもできる。   In FIG. 4B, the locking piece 52t of the right rear inner locking flap 52 and the locking piece 57t of the left rear inner locking flap 57 are positioned on the rear top plate portion 35 side. The locking piece 57t can also be positioned on the bottom plate 10 side.

同様に、右前内側係止フラップ５１と左前内側係止フラップ５６とを係止する。そうすると底板部１０の四辺上には、右側板部５０、右後内側係止フラップ５２、左後内側係止フラップ５７、左側板部５５、左前内側係止フラップ５６および右前内側係止フラップ５１から成る枠体が位置づけられて、底板部１０を底部とする内部空間を有する箱体３（底板部１０と相対する側は開口している）が形成される。   Similarly, the right front inner locking flap 51 and the left front inner locking flap 56 are locked. Then, on the four sides of the bottom plate portion 10, there are a right side plate portion 50, a right rear inner side locking flap 52, a left rear inner side locking flap 57, a left side plate portion 55, a left front inner side locking flap 56 and a right front inner side locking flap 51. The frame body 3 is positioned to form a box 3 having an internal space with the bottom plate portion 10 as a bottom (the side facing the bottom plate portion 10 is open).

このとき、相互に係止した右前内側係止フラップ５１および左前内側係止フラップ５６においては、図５に示すように、左前内側係止フラップ５６の半円形状切り欠き部５６ｗが引裂き始点部２３上に位置づけられる。半円形状切り欠き部５６ｗと引裂き切欠き２３ｘとは、底板部１０の前辺部１０ｃを挟んで対峙している。   At this time, in the right front inner locking flap 51 and the left front inner locking flap 56 which are locked to each other, as shown in FIG. 5, the semicircular cutout portion 56 w of the left front inner locking flap 56 is the tear start point 23. Positioned above. The semicircular notch 56w and the tear notch 23x face each other with the front side portion 10c of the bottom plate portion 10 interposed therebetween.

さらに右天板内フラップ５３および左天板内フラップ５８を底板部１０側に折り曲げたのち、図５に示すように、後板部４０を、その内面４０ｘが右後内側係止フラップ５２および左後内側係止フラップ５７と接するように折り曲げ、さらに後天板部３５を、その内面３５ｘが右天板内フラップ５３および左天板内フラップ５８と接するように折り曲げる。   Further, the right top plate flap 53 and the left top plate flap 58 are bent toward the bottom plate portion 10 side, and then the rear plate portion 40 is formed so that the inner surface 40x thereof has the right rear inner locking flap 52 and the left as shown in FIG. The rear top plate portion 35 is bent so as to be in contact with the rear inner locking flap 57, and the inner surface 35x is bent so that the inner surface 35x is in contact with the right top plate inner flap 53 and the left top plate inner flap 58.

このとき右天板内フラップ５３の前部端５３ａは、右前内側係止フラップ５１よりも若干、右後内側係止フラップ５２側に位置して、右天板内フラップ５３と右前内側係止フラップ５１との間に間隙５３ｇが生じる。同様に左天板内フラップ５８と左前内側係止フラップ５６との間に間隙５８ｇが生じる。   At this time, the front end 53a of the right top plate inner flap 53 is located slightly closer to the right rear inner side locking flap 52 than the right front inner side locking flap 51, so that the right top plate inner flap 53 and the right front inner side locking flap 51 are located. A gap 53 g is formed between the first and second members 51. Similarly, a gap 58 g is formed between the left top plate inner flap 58 and the left front inner locking flap 56.

ところで後天板部３５の縦幅は底板部１０の縦幅よりもわずかに狭いから、後天板部３５に対し折り曲げた天板フラップ３７は、その両側部を間隙５３ｇと間隙５８ｇとの間に挿入して、右前内側係止フラップ５１および左前内側係止フラップ５６と接するように位置づけることができる。こうして箱体３の開口は後天板部３５によって塞がれる。   By the way, since the vertical width of the rear top plate portion 35 is slightly narrower than the vertical width of the bottom plate portion 10, the top plate flap 37 bent with respect to the rear top plate portion 35 is inserted between the gap 53g and the gap 58g on both sides thereof. Then, it can be positioned so as to contact the right front inner locking flap 51 and the left front inner locking flap 56. Thus, the opening of the box 3 is closed by the rear top plate portion 35.

＜梱包箱の閉止について＞
後天板部３５によって箱体３の開口を塞いだ後に、前板部２０の内面２０ｘが右前内側係止フラップ５１および左前内側係止フラップ５６と接するように、底板部１０に対し前板部２０を折り曲げるとともに、前天板部３０を後天板部３５に向けて折り曲げる。前天板部３０の縦幅（閉止爪３２を含まず）は、底板部１０の縦幅の二分の一であるから、閉止爪３２が閉止スリット３６のところに位置づけられて、閉止爪３２を閉止スリット３６に挿入できる状態となる。閉止爪３２を閉止スリット３６に挿入すると、箱体３の開口が閉塞され、前天板部３０の内面３０ｘが後天板部３５と接して、図６に示すように梱包箱１を閉止することができる。もちろん梱包箱１の閉止に際しては、所望の物品などが梱包箱１に収容される。 <About closing the packing box>
After the opening of the box 3 is closed by the rear top plate portion 35, the front plate portion 20 with respect to the bottom plate portion 10 so that the inner surface 20 x of the front plate portion 20 contacts the right front inner locking flap 51 and the left front inner locking flap 56. And the front top plate 30 is bent toward the rear top plate 35. Since the vertical width (not including the closing claw 32) of the front top plate portion 30 is a half of the vertical width of the bottom plate portion 10, the closing claw 32 is positioned at the closing slit 36 to close the closing claw 32. It will be in the state which can be inserted in the slit 36. FIG. When the closing claw 32 is inserted into the closing slit 36, the opening of the box 3 is closed, and the inner surface 30x of the front top plate portion 30 is in contact with the rear top plate portion 35 to close the packaging box 1 as shown in FIG. it can. Of course, when the packaging box 1 is closed, a desired article or the like is accommodated in the packaging box 1.

ここで、閉止爪３２の最大幅部３２ａは、閉止スリット３６の主切込線部３６ａの長さより若干幅が広いから、主切込線部３６ａが閉止爪３２の抜け止として作用する。また閉止スリット３６の舌部３６ｔが閉止爪３２の切抜き部３２ｓに係止して、閉止爪３２の閉止スリット３６からの離脱がより困難になる（天板部の閉止がより確実となる。）。   Here, since the maximum width portion 32 a of the closing claw 32 is slightly wider than the length of the main cutting line portion 36 a of the closing slit 36, the main cutting line portion 36 a acts as a stopper of the closing claw 32. Further, the tongue portion 36t of the closing slit 36 is engaged with the cutout portion 32s of the closing claw 32, so that it is more difficult to remove the closing claw 32 from the closing slit 36 (the top plate portion is more reliably closed). .

こうして閉止された梱包箱１は、右左前内側係止フラップ５１、５６と前板部２０とが重なるから、そして右左後内側係止フラップ５２、５７と後板部４０とが重なるから、底板部１０と、前板部２０、後板部４０、右側板部５０および左側板部５５との境界に、隙間や切れ目が生じない。なお引裂き切欠き２３ｘおよび半円形状切り欠き部５６ｗの内部側は、天板フラップ３７によって閉塞される。   The packaging box 1 closed in this way has the right and left front inner locking flaps 51 and 56 and the front plate portion 20 overlapping, and the right and left rear inner locking flaps 52 and 57 and the rear plate portion 40 overlap. 10 and the boundary between the front plate portion 20, the rear plate portion 40, the right side plate portion 50, and the left side plate portion 55 are free from gaps or breaks. The inner side of the tear notch 23x and the semicircular notch 56w is closed by the top plate flap 37.

また梱包箱１は、前板部２０側の縁が前板部２０および前天板部３０で覆われ、後板部４０側の縁が後板部４０および後天板部３５で覆われ、右側板部５０側の縁が、右側板部５０および右天板内フラップ５３で覆われたうえに天板部で覆われ、そして左側板部５５側の縁が、左側板部５５および左天板内フラップ５８で覆われたうえに天板部で覆われるため、いずれも隙間や切れ目が生じない。すなわちブランク２を折り曲げて形成した梱包箱１は、隙間や切れ目が生じない。   The packaging box 1 has an edge on the front plate portion 20 side covered with the front plate portion 20 and the front top plate portion 30, and an edge on the rear plate portion 40 side covered with the rear plate portion 40 and the rear top plate portion 35. The edge on the part 50 side is covered with the top plate part after being covered with the right side plate part 50 and the right top plate flap 53, and the edge on the left side plate part 55 side is inside the left side plate part 55 and the left top plate Since it is covered with the flap 58 and covered with the top plate portion, no gaps or breaks occur. That is, the packaging box 1 formed by bending the blank 2 is free from gaps or breaks.

＜梱包箱の開封について＞
左前内側係止フラップ５６の半円形状切り欠き部５６ｗおよび前板部２０の引裂き始点部２３に形成された引裂き切欠き２３ｘは、図６に示すように引裂き始点部２３上に位置づけられている。したがって、引裂き始点部２３に指先を掛けると、前板部２０に形成された第一の引裂き線２１および第二の引裂き線２２を引裂くことができる。 <About opening the packing box>
The tear notch 23x formed in the semicircular notch 56w of the left front inner locking flap 56 and the tear starting point 23 of the front plate 20 is positioned on the tear starting point 23 as shown in FIG. . Therefore, when the fingertip is put on the tear start point 23, the first tear line 21 and the second tear line 22 formed on the front plate part 20 can be torn.

こうして第一の引裂き線２１および第二の引裂き線２２を引裂くと、図７に示すように前板部２０は底板部１０に連接した二つの主前板部２０ｍと、前天板部３０に連接した一つの副前板部２０ｎとに分離して、箱体３を閉塞していた前天板部３０および後天板部３５からなる天板部が箱体３の開口から離れ、梱包箱１が開封される。   When the first tear line 21 and the second tear line 22 are torn in this way, the front plate portion 20 is connected to the two main front plate portions 20m connected to the bottom plate portion 10 and the front top plate portion 30 as shown in FIG. The top plate part composed of the front top plate part 30 and the rear top plate part 35 which are separated into one connected sub-front plate part 20n and close the box 3 is separated from the opening of the box 3 so that the packaging box 1 is Opened.

このとき後板部４０は、右後内側係止フラップ５２および左後内側係止フラップ５７から離れるが、右前内側係止フラップ５１と左前内側係止フラップ５６との係止、および右後内側係止フラップ５２と左後内側係止フラップ５７との係止を解除しない限り、右側板部５０、右後内側係止フラップ５２、左後内側係止フラップ５７、左側板部５５、左前内側係止フラップ５６および右前内側係止フラップ５１で底板部１０の四辺上に形成された枠体は、その形状を維持することができる（図７）。   At this time, the rear plate portion 40 is separated from the right rear inner locking flap 52 and the left rear inner locking flap 57, but is locked between the right front inner locking flap 51 and the left front inner locking flap 56, and the right rear inner locking. Unless the locking of the stop flap 52 and the left rear inner locking flap 57 is released, the right side plate portion 50, the right rear inner locking flap 52, the left rear inner locking flap 57, the left side plate portion 55, the left front inner locking The frame formed on the four sides of the bottom plate portion 10 by the flap 56 and the right front inner locking flap 51 can maintain its shape (FIG. 7).

さらに右前内側係止フラップ５１と左前内側係止フラップ５６との係止、および右後内側係止フラップ５２と左後内側係止フラップ５７との係止を解除すれば、開封された梱包箱１のブランク２を平面に展開することができるから、そして接着剤による接着や、テープの貼着等がされていないから、リサイクル作業を簡略化することができる。   Further, if the engagement between the right front inner locking flap 51 and the left front inner locking flap 56 and the locking between the right rear inner locking flap 52 and the left rear inner locking flap 57 are released, the opened packaging box 1 The blank 2 can be spread on a flat surface, and since the bonding with the adhesive and the sticking of the tape are not performed, the recycling work can be simplified.

＜梱包箱の再使用について＞
次に開封された梱包箱１の再使用について説明する。開封された梱包箱１（図７参照）では、図８（ａ）に示すように、前天板部３０の閉止爪３２を後天板部３５の閉止スリット３６から引き抜くことで、前天板部３０を後天板部３５から切り離すことができ、また底板部１０の前辺部１０ｃにミシン目が形成されている場合には、底板部１０側に連接している前板部２０の二つの主前板部２０ｍを底板部１０から切り離すことができる。こうして後天板部３５および主前板部２０ｍを梱包箱１から切り離しても、底板部１０の四辺上に形成された枠体はその形状を維持しているから、枠体内に物品を収容することができる。 <Reuse of packing box>
Next, the reuse of the opened packaging box 1 will be described. In the opened packaging box 1 (see FIG. 7), as shown in FIG. 8A, the front couchtop 30 is removed by pulling the closing claw 32 of the front couchtop 30 from the closing slit 36 of the rear couchtop 35. Two main front plates of the front plate portion 20 connected to the bottom plate portion 10 side can be separated from the rear top plate portion 35 and the perforation is formed in the front side portion 10c of the bottom plate portion 10. The portion 20m can be separated from the bottom plate portion 10. Even if the rear top plate portion 35 and the main front plate portion 20m are separated from the packaging box 1 in this manner, the frame formed on the four sides of the bottom plate portion 10 maintains its shape, so that articles can be accommodated in the frame. Can do.

枠体内に物品を収容したのち、右天板内フラップ５３、左天板内フラップ５８を折り曲げ、さらに天板フラップ３７を、互いに係止した右前内側係止フラップ５１、左前内側係止フラップ５６の内側に挿入して、図８（ｂ）に示すように後天板部３５で枠体を閉止することで、開封された梱包箱１を再使用することができる。なお左前内側係止フラップ５６の半円形状切り欠き部５６ｗは、天板フラップ３７によって塞がれる。   After the articles are housed in the frame, the right top plate flap 53 and the left top plate flap 58 are folded, and the top plate flap 37 is locked to the right front inner locking flap 51 and the left front inner locking flap 56. The opened packing box 1 can be reused by inserting it inside and closing the frame body with the rear top plate portion 35 as shown in FIG. 8B. The semicircular cutout portion 56 w of the left front inner locking flap 56 is closed by the top plate flap 37.

梱包箱１の再使用においては、右前内側係止フラップ５１の上部辺５１ｃおよび左前内側係止フラップ５６の上部辺５６ｃと、後天板部３５と天板フラップ３７と間の境界３５ａとの間に、僅かな間隙が生じるから、少なくともこの間隙をテープなどで塞ぐことが望ましい。また閉止スリット３６もテープなどで塞ぐことが望ましい。なお宛先などを示す伝票を貼着する場合には、この伝票で閉止スリット３６を塞ぐこともできる。   In the reuse of the packaging box 1, between the upper side 51 c of the right front inner side locking flap 51 and the upper side 56 c of the left front inner side locking flap 56 and the boundary 35 a between the rear top plate part 35 and the top plate flap 37. Since a slight gap is generated, it is desirable to close at least this gap with a tape or the like. It is also desirable to close the closing slit 36 with a tape or the like. When a slip indicating the destination is pasted, the closing slit 36 can be closed with this slip.

前天板部３０を後天板部３５から切り離さず、また底板部１０に連接している二つの主前板部２０ｍを底板部１０から切り離さなかった場合にも、開封された梱包箱１を再使用することができる。右天板内フラップ５３、左天板内フラップ５８を折り曲げ、さらに天板フラップ３７を、互いに係止した右前内側係止フラップ５１、左前内側係止フラップ５８の内側に挿入して、後天板部３５で枠体を閉止すればよい。   Even when the front top plate 30 is not separated from the rear top plate 35 and the two main front plates 20m connected to the bottom plate 10 are not separated from the bottom plate 10, the opened packaging box 1 is reused. can do. The right top plate flap 53 and the left top plate flap 58 are bent, and the top plate flap 37 is inserted inside the right front inner locking flap 51 and the left front inner locking flap 58 which are locked to each other, and the rear top plate portion The frame may be closed at 35.

この場合には、先ず、前天板部３０に連接した前板部２０の副前板部２０ｎおよび底板部１０に連接した前板部２０の主前板部２０ｍが、互いに係止した右前内側係止フラップ５１および左前内側係止フラップ５６の外側表面に接するように位置づける（このときの梱包箱１の外観は図６に示すものと同様になる。）。そののち、右前内側係止フラップ５１、前板部２０の主前板部２０ｍ、副前板部２０ｎ、および左前内側係止フラップ５６にかけてテープなどを貼着する。   In this case, first, the sub-front plate portion 20n of the front plate portion 20 connected to the front top plate portion 30 and the main front plate portion 20m of the front plate portion 20 connected to the bottom plate portion 10 are engaged with each other. It positions so that it may touch the outer surface of the stop flap 51 and the left front inner side latching flap 56 (The external appearance of the packaging box 1 at this time becomes the same as what is shown in FIG. 6). After that, a tape or the like is attached to the right front inner side locking flap 51, the main front plate part 20m of the front plate part 20, the sub front plate part 20n, and the left front inner side locking flap 56.

なお本発明にかかる梱包箱は、その趣旨を変更することなく適宜変形して実施することができる。   In addition, the packaging box concerning this invention can be deform | transformed suitably and implemented, without changing the meaning.

１ 梱包箱
２ ブランク
３ 箱体
１０ 底板部
１０ａ 底板部の右辺部（底板部と右側板部との境界（折り目部））
１０ｂ 底板部の左辺部（底板部と左側板部との境界（折り目部））
１０ｃ 底板部の前辺部（底板部と前板部との境界（折り目部））
１０ｄ 底板部の後辺部（底板部と後板部との境界（折り目部））
２０ 前板部
３０ 前天板部
３１ 前天板部の先端部
３２ 閉止爪
３２ａ 閉止爪の最大幅部
３２ｂ 閉止爪の爪先部
３２ｊ 閉止爪の接続部
３２ｔ 閉止爪の爪本体部
３５ 後天板部
３６ 閉止スリット
３７ 天板フラップ
４０ 後板部
５０ 右側板部
５１ 右前内側係止フラップ
５１ａ 右前内側係止折り目部
５１ｒ 右前内側係止フラップの係止部
５２ 右後内側係止フラップ
５２ａ 右後内側係止折り目部
５２ｒ 右後内側係止フラップの係止部
５３ 右天板内フラップ
５５ 左側板部
５６ 左前内側係止フラップ
５６ａ 左前内側係止折り目部
５６ｒ 左前内側係止フラップの係止部
５７ 左後内側係止フラップ
５７ａ 左後内側係止折り目部
５７ｒ 左後内側係止フラップの係止部
５８ 左天板内フラップ DESCRIPTION OF SYMBOLS 1 Packing box 2 Blank 3 Box 10 Bottom plate part 10a Right side part of bottom plate part (boundary (fold part) between bottom plate part and right side plate part)
10b Left side part of bottom plate part (boundary (fold part) between bottom plate part and left side plate part)
10c Front side part of bottom plate part (boundary (fold part) between bottom plate part and front plate part)
10d Rear side portion of bottom plate portion (boundary (folded portion) between bottom plate portion and rear plate portion)
20 Front plate portion 30 Front top plate portion 31 Front end portion of front top plate portion 32 Closure claw 32a Maximum width portion of closure claw 32b Toe portion of closure claw 32j Connection portion of closure claw 32t Claw body portion of closure claw 35 Rear top plate portion 36 Closure Slit 37 Top plate flap 40 Rear plate portion 50 Right side plate portion 51 Right front inner side locking flap 51a Right front inner side locking fold portion 51r Right front inner side locking flap locking portion 52 Right rear inner side locking flap 52a Right rear inner side locking fold Portion 52r Locking portion of the right rear inner locking flap 53 Right flap inside the top plate 55 Left side plate portion 56 Left front inner locking flap 56a Left front inner locking fold portion 56r Locking portion of the left front inner locking flap 57 Left rear inner locking Stop flap 57a Left rear inner side locking fold 57r Left rear inner side locking flap locking part 58 Left top plate flap

Claims (6)

略四辺形の底板部と、前記底板部の前方に連接した前板部および前天板部と、前記底板部の後方に連接した後板部および後天板部と、前記底板部の右方に連接した右側板部と、前記底板部の左方に連接した左側板部とを有するブランクを折り曲げて形成される梱包箱であって、
前記後天板部は、前記後板部と相対する側に延出した天板フラップを有し、
前記右側板部は、前方側に連接した右前内側係止フラップと、後方側に連接した右後内側係止フラップと、前記底板部と相対する側に連接した右天板内フラップを有し、
前記左側板部は、前方側に連接した左前内側係止フラップと、後方側に連接した左後内側係止フラップと、前記底板部と相対する側に連接した左天板内フラップを有し、
前記右前内側係止フラップ、前記右後内側係止フラップ、前記左前内側係止フラップおよび前記左後内側係止フラップには、それぞれ係止部が形成されており、
前記右側板部および前記左側板部を前記底板部に対し同じ方向に折り曲げるとともに、前記右前内側係止フラップおよび前記左前内側係止フラップを折り曲げて、前記右前内側係止フラップの係止部と前記左前内側係止フラップの係止部とを係止すると、また前記右後内側係止フラップおよび前記左後内側係止フラップを折り曲げて、前記右後内側係止フラップの係止部と前記左後内側係止フラップの係止部とを係止すると、
前記右側板部および前記左側板部が略垂直に折り曲げられて位置づけられるとともに、前記右前内側係止フラップおよび前記左前内側係止フラップが、前記底板部の前辺部に略接して位置づけられて、また前記右後内側係止フラップおよび前記左後内側係止フラップが、前記底板部の後辺部に略接して位置づけられて、前記底板部の上方が開口した箱体を形成することができ、
前記後板部が、前記右後内側係止フラップおよび前記左後内側係止フラップに接するように、前記後板部を前記底板部に対し略垂直に折り曲げるとともに、
前記天板フラップを前記右前内側係止フラップおよび前記左前内側係止フラップの近傍に、または略接して位置づけるように、前記後天板部を折り曲げ、
さらに前記前板部が、前記右前内側係止フラップおよび前記左前内側係止フラップに接するように、前記前板部を前記底板部に対し略垂直に折り曲げ、前記前天板部を前記後天板部に閉止手段で係止することで該梱包箱を閉止することができ、
前記前天板部および前記後天板部によって前記箱体の開口を塞ぐ際に、前記右天板内フラップおよび前記左天板内フラップが前記後天板部の内面側に位置づけられ、
前記閉止手段は、前記前天板部の先端部に形成された閉止爪と、前記閉止爪に形成された切抜き部と、前記後天板部に形成された閉止スリットと、前記閉止スリットに形成された舌部とを含み、前記閉止爪を前記閉止スリットに挿入し係止させると、前記舌部が前記切抜き部に係止し、
前記閉止された該梱包箱を開封するための引裂き線が前記前板部に形成されており、
前記引裂き線は第一の引裂き線および第二の引裂き線からなり、
前記第一の引裂き線および前記第二の引裂き線は、前記底板部側のそれぞれの他端から、前記前天板部側のそれぞれの一端に向け、互いの間隔が徐々に拡がるように形成されており、
前記第一の引裂き線の他端および前記第二の引裂き線の他端は前記前板部の幅方向の中央部側に位置し、
前記第一の引裂き線の他端と前記第二の引裂き線の他端との間には引裂き始点部が介在しており、
前記引裂き始点部を始点として前記引裂き線を引裂くことで、前記前天板部を前記ブランクから分離することができ、
前記閉止手段を係止して閉止された該梱包箱を、前記引裂き始点部を始点として前記引裂き線を引裂くことによって、前記前天板部を前記閉止手段によって前記後天板部に係止させた状態で該梱包箱を開封できることを特徴とする梱包箱。 A substantially quadrilateral bottom plate portion, a front plate portion and a front top plate portion connected to the front of the bottom plate portion, a rear plate portion and a rear top plate portion connected to the rear of the bottom plate portion, and a right side of the bottom plate portion. A packaging box formed by bending a blank having a right side plate part and a left side plate part connected to the left side of the bottom plate part,
The rear top plate portion has a top plate flap extending to the side facing the rear plate portion,
The right side plate portion includes a right front inner locking flaps connected to the front side, and the right rear inner locking flaps connected to the rear side, the right top plate flaps articulated on opposite side to the bottom plate portion,
The left side plate portion has a left front inner locking flaps connected to the front side, and the inner locking flap after left continuously connected to the rear side, a left top board in flaps articulated on opposite side to the bottom plate portion,
The right front inner locking flap, the right rear inner locking flap, the left front inner locking flap and the left rear inner locking flap are each formed with a locking portion,
The right side plate portion and the left side plate portion are bent in the same direction with respect to the bottom plate portion, and the right front inner locking flap and the left front inner locking flap are bent, and the locking portion of the right front inner locking flap and the When the latching portion of the left front inner latching flap is latched, the right rear inner latching flap and the left rear inner latching flap are bent, and the latching portion of the right rear inner latching flap and the left rear When locking the locking part of the inner locking flap,
The right side plate portion and the left side plate portion are positioned by being bent substantially vertically, and the right front inner side locking flap and the left front inner side locking flap are positioned substantially in contact with the front side portion of the bottom plate portion, Further, the right rear inner locking flap and the left rear inner locking flap are positioned so as to be substantially in contact with the rear side portion of the bottom plate portion, and a box body in which the upper portion of the bottom plate portion is opened can be formed.
Bending the rear plate portion substantially perpendicular to the bottom plate portion so that the rear plate portion is in contact with the right rear inner locking flap and the left rear inner locking flap;
Bending the rear top plate so that the top plate flap is positioned near or substantially in contact with the right front inner locking flap and the left front inner locking flap;
Further, the front plate portion is bent substantially perpendicularly to the bottom plate portion so that the front plate portion is in contact with the right front inner locking flap and the left front inner locking flap, and the front top plate portion is turned to the rear top plate portion. The packaging box can be closed by locking with a closing means,
When closing the opening of the box by the front top plate portion and the rear top plate portion, the flap in the right top plate and the flap in the left top plate are positioned on the inner surface side of the rear top plate portion,
The closing means is formed in a closing claw formed in a front end portion of the front top plate portion, a cutout portion formed in the closing claw, a closing slit formed in the rear top plate portion, and the closing slit. A tongue portion, and inserting and locking the closing claw into the closing slit, the tongue portion locks to the cutout portion,
Tear line for opening the packaging box has been pre-Symbol closure is formed in the front plate portion,
The tear line comprises a first tear line and a second tear line,
The first tear line and the second tear line are formed so that the distance between the first tear line and the second tear line gradually increases from the other end on the bottom plate portion side toward the one end on the front top plate portion side. And
The other end of the first tear line and the other end of the second tear line are located on the center side in the width direction of the front plate part,
A tear start point is interposed between the other end of the first tear line and the other end of the second tear line,
By tearing the tear line starting from the tear starting point, the front top plate can be separated from the blank,
The front top plate portion is locked to the rear top plate portion by the closing means by tearing the tear line starting from the tear start point portion of the packaging box closed by locking the closing means. A packaging box, wherein the packaging box can be opened in a state . 前記閉止スリットが前記後天板部の幅方向の中央部に形成され、かつ前記前天板部の縦幅が前記底板部の略二分の一に形成されて、The closing slit is formed in the center of the rear top plate in the width direction, and the vertical width of the front top plate is formed in substantially half of the bottom plate,
該梱包箱が閉止されると、前記閉止スリットが前記前天板部および前記後天板部で構成される天板部の中央部に位置づけられることを特徴とする請求項１に記載の梱包箱。2. The packaging box according to claim 1, wherein when the packaging box is closed, the closing slit is positioned at a center portion of the top plate portion constituted by the front top plate portion and the rear top plate portion. 前記閉止爪は接続部および爪本体部を有し、
前記接続部が前記前天板部と前記爪本体部との間に介在し、
前記爪本体部は、前記接続部近傍において、前記後天板部に形成された前記閉止スリットの幅よりも若干広い最大幅部を有し、その幅が爪先部に向け狭くなっていることを特徴とする請求項２に記載の梱包箱。 The closing claw has a connection part and a claw body part,
The connecting portion is interposed between the front top plate portion and the claw body portion,
The claw body portion has a maximum width portion slightly wider than the width of the closing slit formed in the rear top plate portion in the vicinity of the connection portion, and the width is narrowed toward the toe portion. The packaging box according to claim 2. 前記右前内側係止フラップを折り曲げるための右前内側係止折り目部と前記右後内側係止フラップを折り曲げるための右後内側係止折り目部との間隔が前記底板部の右辺部の長さよりも若干狭く、
また前記左前内側係止フラップを折り曲げるための左前内側係止折り目部と前記左後内側係止フラップを折り曲げるための左後内側係止折り目部との間隔が前記底板部の左辺部の長さよりも若干狭いことを特徴とする請求項１に記載の梱包箱。 The distance between the right front inner locking fold portion for folding the right front inner locking flap and the right rear inner locking fold portion for folding the right rear inner locking flap is slightly longer than the length of the right side portion of the bottom plate portion. Narrow,
Further, the distance between the left front inner locking fold for folding the left front inner locking flap and the left rear inner locking fold for folding the left rear inner locking flap is longer than the length of the left side of the bottom plate. The packing box according to claim 1, which is slightly narrow. 前記第一の引裂き線の一端は前記前板部と前記前天板部との境界の前記右側板部側の略端部に位置し、その他端は前記底板部と前記前板部との境界のほぼ中央部に位置し、
前記第二の引裂き線の一端は前記前板部と前記前天板部との境界の前記左側板部側の略端部に位置し、その他端は前記底板部と前記前板部との境界のほぼ中央部に位置していることを特徴とする請求項１に記載の梱包箱。 One end of the previous SL first tear line positioned substantially end portion of the right side plate portion of the boundary between the front top plate portion and the front plate, the other end boundary between the front plate and the bottom plate portion Located in the middle of
Boundary between the end of the second tear line is located in a substantially end portion of the left side plate portion of the boundary between the front top plate portion and the front plate, and the other end the front plate and the bottom plate portion 2. The packing box according to claim 1, wherein the packing box is located at substantially the center of the boundary. 前記ブランクが段ボールまたは厚紙で形成されたことを特徴とする請求項１ないし５の何れかに記載の梱包箱。 Packing box according to any one of claims 1 to 5, characterized in that the blank is formed of cardboard or cardboard.
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