JP7582795B2

JP7582795B2 - Delivery body

Info

Publication number: JP7582795B2
Application number: JP2020094483A
Authority: JP
Inventors: 健二大谷; 武福田
Original assignee: Pack Corp
Current assignee: Pack Corp
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2024-11-13
Anticipated expiration: 2040-05-29
Also published as: JP2021187502A

Description

本発明は、厚みがある収納物を内部に収納した状態で、小荷物輸送や郵送などに供する
ことができる配送体に関するものである。 The present invention relates to a delivery body that can be used for transporting small packages, mailing, etc., while storing a thick item inside.

従来、収納物を内部に収納した状態で輸送に用いることができる袋体（配送体）としては、特許文献１のようなものが知られている。
特許文献１の袋体は、厚みを有する内容物を収納可能とするものであり、箱状の外観を備えている。そして、箱状に形成された袋体の一面にはフラップが設けられ、このフラップを折り返して他の面に接触させることで、袋体の開口部を封鎖可能となっている。この特許文献１の袋体または箱体は、袋体の他の面の開口部端縁部から底部方向に向かって少なくとも一以上の切れ込み部を設けていることを特徴としており、このような切れ込み部を設けることで開口部近傍の歪みを抑制し、マチ部の引き起こしを容易としており、厚みを有する収納物であっても収納することができるものとなっている。 2. Description of the Related Art Conventionally, a bag (delivery body) that can be used for transportation with an item stored therein is known, such as that disclosed in Patent Document 1.
The bag of Patent Document 1 is capable of storing thick contents and has a box-like appearance. A flap is provided on one side of the bag formed in a box shape, and the opening of the bag can be closed by folding back the flap and contacting the other side. The bag or box of Patent Document 1 is characterized in that at least one slit is provided from the edge of the opening of the other side of the bag toward the bottom, and by providing such a slit, distortion near the opening is suppressed and the gusset portion can be easily raised, making it possible to store even thick contents.

一方、特許文献２には、一枚の段ボールシートから形成される段ボール製封筒であって、対向し合う方形状かつ略同形の表面パネル部１及び裏面パネル部２と、上記表面パネル部１の下縁と上記裏面パネル部２の下縁とを接続し、帯状で幅方向中央で折り返される底マチ部３と、上記表面パネル部１の両側縁から延設され、帯状で幅方向中央で折り返される一対の側マチ部４と、上記表面パネル部１の上縁から延設され、帯状で幅方向中央で折り返される上マチ部５と、上記一対の側マチ部４の先端縁から延設され、上記裏面パネル部２に貼着される一対の側貼着部６と、上記上マチ部５の先端縁から延設され、上記裏面パネル部２に貼着される上貼着部７と、上記底マチ部３の両側縁と上記一対の側マチ部４の下側の側縁とを接続する一対の底隅封止部８と、上記一対の側マチ部の上側の側縁と上記上マチ部の両側縁とを接続する一対の上隅封止部９とを備える段ボール製封筒が開示されている。特許文献２の段ボール製封筒によれば、段ボール製の封筒でありながら、厚みの形成が容易となっている。 On the other hand, Patent Document 2 describes a cardboard envelope formed from a single cardboard sheet, which includes a front panel portion 1 and a back panel portion 2 that are rectangular and substantially identical to each other, a bottom gusset portion 3 that connects the lower edge of the front panel portion 1 and the lower edge of the back panel portion 2 and is strip-shaped and folded back at the center in the width direction, a pair of side gusset portions 4 that extend from both side edges of the front panel portion 1 and are strip-shaped and folded back at the center in the width direction, and a pair of side gusset portions 5 that extend from the upper edge of the front panel portion 1 and are strip-shaped and folded back at the center in the width direction. The document discloses a cardboard envelope including a top gusset portion 5 that is attached to the bottom gusset portion 3, a pair of side adhesive portions 6 that extend from the leading edges of the pair of side gusset portions 4 and are affixed to the back panel portion 2, an upper adhesive portion 7 that extends from the leading edge of the top gusset portion 5 and is affixed to the back panel portion 2, a pair of bottom corner sealing portions 8 that connect both side edges of the bottom gusset portion 3 to the lower side edges of the pair of side gusset portions 4, and a pair of upper corner sealing portions 9 that connect the upper side edges of the pair of side gusset portions to both side edges of the top gusset portion. The cardboard envelope of Patent Document 2 makes it easy to form a thickness even though it is a cardboard envelope.

また、特許文献３には、上下に連成した表面部２と裏面部３とを折線４から折り返して重合し、表面部２の左右に連成した貼着片５を折線６から折り返して裏面部３に貼着することにより上部を梱包物出入口７とする袋本体８とする封筒状梱包袋が開示されている。特許文献３の封筒状梱包袋では、該袋本体８の表面部２の上部に封止フラップ９を連成しており、表面部２と裏面部３の周縁及び封止フラップ９の基部側に、収容する梱包物の厚み及び大きさに対応して箱形に変形させるための折線１０を形成している。また、特許文献３の封筒状梱包袋では、前記表面部２の左右に連成し、裏面部３に貼着した貼着片５の夫々を、上側５Ａにおいては梱包物出入口７より上方に延出せしめる一方、下側５Ｂにおいては裏面部３の下端縁に達するまで延設せしめ、更に裏面部３における上部中央に、袋本体８の幅方向に沿った折線１１を上下方向に所定の間隔で複数形成した舌状固定片１２を延設しており、これにより書籍やＣＤ類の配送用封筒にあって、収容物を毀損する恐れが少なく、又、外部から中身が見えない形状の封筒状梱包袋を提供可能としている。 Patent Document 3 discloses an envelope-like packaging bag in which a front portion 2 and a back portion 3 connected vertically are folded back at a fold line 4 to overlap each other, and adhesive pieces 5 connected to the left and right sides of the front portion 2 are folded back at a fold line 6 and attached to the back portion 3 to form a bag body 8 whose upper portion serves as an entrance/exit 7 for the packaged goods. In the envelope-like packaging bag of Patent Document 3, a sealing flap 9 is connected to the upper portion of the front portion 2 of the bag body 8, and fold lines 10 are formed on the periphery of the front portion 2 and the back portion 3 and on the base side of the sealing flap 9 to deform the bag into a box shape in accordance with the thickness and size of the packaged goods to be stored. In addition, in the envelope-shaped packaging bag of Patent Document 3, the adhesive pieces 5 connected to the left and right sides of the front portion 2 and attached to the back portion 3 extend upward from the packaged item entrance 7 on the upper side 5A, while on the lower side 5B they extend to reach the lower edge of the back portion 3. Furthermore, in the upper center of the back portion 3, a tongue-shaped fixing piece 12 is provided, which has multiple fold lines 11 formed at predetermined intervals in the vertical direction along the width direction of the bag body 8. This makes it possible to provide an envelope-shaped packaging bag that is less likely to damage the contents when used as a delivery envelope for books or CDs, and whose shape makes it impossible to see the contents from the outside.

さらに、特許文献4には、封緘用閉じしろ２及び接着しろ３が形成された段ボール紙を折り込み、かつ前記接着しろ３が接着されて形成される段ボール紙製封筒１が開示されている。特許文献４の段ボール紙製封筒１は、封筒１の底部側には幅方向に沿った折り込み線１２を、両端側には上下方向に沿った折り込み線１３をそれぞれ形成させ、前記上下方向に沿った折り込み線１３を、両端側にそれぞれ複数形成することで、ボール紙以上の強度が要求される便に用いることができ、しかも再生紙として何度も利用することができるとしている。 Furthermore, Patent Document 4 discloses a cardboard envelope 1 formed by folding a cardboard sheet on which a sealing margin 2 and an adhesive margin 3 have been formed, and then gluing the adhesive margin 3. The cardboard envelope 1 of Patent Document 4 has a fold line 12 along the width direction formed on the bottom side of the envelope 1, and fold lines 13 along the vertical direction formed on both ends, and by forming multiple fold lines 13 along the vertical direction on both ends, it can be used for items that require strength greater than that of cardboard, and can also be reused as recycled paper many times.

特開２００６－０５１９６８号公報JP 2006-051968 A 登録実用新案第３１９５８３３号公報Registered Utility Model No. 3195833 登録実用新案第３１６３８２２号公報Registered Utility Model No. 3163822 登録実用新案第３０９４２３２号公報Registered Utility Model No. 3094232

ところで、特許文献１の袋体または箱体は、蓋（フラップ）が設けられた側とは反対側の本体（表側の本体）の左右両側に側辺に沿って伸びる山折り部が形成されており、この山折り部の先端に、蓋に接触して開口部の封鎖性を向上させる補助フラップ（マチ部）を備えている。
しかし、この補助フラップは、左右方向の内側に向かって折れ曲がって蓋に接触する構造だが、開口部両側に隙間ができて箱体の封緘性が低下してしまう可能性がある。つまり、特許文献１の袋体または箱体は、蓋による開口部の封緘性、特に開口部両側の密封性については、依然として改善が必要なものとなっていた。 Incidentally, the bag or box of Patent Document 1 has mountain folds extending along the side edges on both the left and right sides of the main body (the front side of the main body) opposite the side on which the lid (flap) is provided, and the tip of this mountain fold is provided with an auxiliary flap (gusset portion) that comes into contact with the lid to improve the sealing of the opening.
However, this auxiliary flap is bent inward in the left-right direction to contact the lid, but there is a possibility that gaps will be formed on both sides of the opening, which may reduce the sealing ability of the box. In other words, the bag or box of Patent Document 1 still requires improvement in terms of the sealing ability of the opening with the lid, particularly the sealing ability on both sides of the opening.

また、特許文献１の袋体または箱体では、上述したマチ部を設けるためには、表側の本体の側辺に沿って山折り部を必ず設ける必要があり、その分だけ段ボールなどの材料を多く必要とするため、材料コストの面でも改善が必要となっていた。
一方、特許文献２～特許文献4の容器は、厚みがある収納物を収納可能なものではあるが、開口部の封緘性については十分な配慮がされたものとは言えず、さらなる封緘性の向上が望まれていた。 Furthermore, in the bag or box of Patent Document 1, in order to provide the above-mentioned gusset portion, it is necessary to provide a mountain fold along the side edge of the front body, which requires a large amount of material such as cardboard, and therefore improvements were also needed in terms of material costs.
On the other hand, although the containers in Patent Documents 2 to 4 are capable of storing thick items, it cannot be said that sufficient consideration has been given to the sealability of the opening, and further improvement in the sealability has been desired.

本発明は、上述の問題に鑑みてなされたものであり、厚みがある収納物を内部に収納可能なものでありながら、低い材料コストで、開口部の封緘性をさらに良好にすることができる配送体を提供することを目的とする。 The present invention was made in consideration of the above problems, and aims to provide a delivery body that can store thick items inside, while at the same time having low material costs and improved sealing of the opening.

上記課題を解決するため、本発明の配送体は以下の技術的手段を講じている。
即ち、本発明の配送体は、収納物を出し入れ可能とする開口部を前方に向けて開口する配送体本体と、前記開口部を閉鎖可能とする折返フラップと、を備え、前記配送体本体は
、扁平な袋状に折り畳まれた状態と、上面、底面、後面、左側面、及び右側面を有する箱状に組み立てた組立状態とに変形可能とされた段ボール製の配送体であって、前記組立状態において、前記底面は、左右方向に延びる前端の罫線Ｒ_Ａと、前後方向に延びる左端の罫線Ｒ_Ｂと、前後方向に延びる右端の罫線Ｒ_Ｃと、左右方向に延びる後端の罫線Ｒ_Ｄとで囲まれた長方形状に形成されており、前記左側面は、前記罫線Ｒ_Ｂを境に前記底面の左側に折り曲げ自在に連結され、且つ、前記左側面を前後方向に横切る罫線Ｒ_Ｇを境に、上下方向の中途部が左方に向かって突出するように折れ曲がる構造を有し、前記右側面は、前記罫線Ｒ_Ｃを境に前記底面の右側に折り曲げ自在に連結され、且つ、前記右側面を前後方向に横切る罫線Ｒ_Ｋを境に、上下方向の中途部が右方に向かって突出するように折れ曲がる構造を有し、前記後面は、前記罫線Ｒ_Ｄを境に前記底面の後側に折り返し自在に連結され、且つ、前記後面を左右方向に横切る罫線Ｒ_Ｐを境に、上下方向の中途部が後方に向かって突出するように折れ曲がる構造を有し、前記上面は、前記開口部の上端に沿って左右方向に延びる辺と、前記底面から連続して前記後面を経由して前記上面における前記開口部の上端まで延びる前記罫線Ｒ_Ｂと、前記底面から連続して前記後面を経由して前記上面における前記開口部の上端まで延びる前記罫線Ｒ_Ｃと、前記後面の上端において左右方向に延びる罫線Ｒ_Ｍと、で囲まれた長方形状に形成されており、前記折返フラップは、折り返された状態において前記開口部を閉鎖可能な基端フラップと、前記上面に面状態で接触可能な先端フラップと、前記先端フラップの左縁に折り曲げ自在に設けられた左サイドフラップと、前記先端フラップの右縁に折り曲げ自在に設けられた右サイドフラップと、を有し、前記基端フラップは、前記配送体本体の底面に対して、前記罫線Ｒ_Ａを境に折り返し自在に連結された下部分と、前記基端フラップを左右方向に横切る罫線Ｒ_Ｒを境に後方に折り返された上部分とを有し、上下方向の中途部が前方に向かって突出するように折れ曲がる構造を有し、前記先端フラップは、前記罫線Ｒ_Ａの上方において左右方向に延びる罫線Ｒ _Ｓを境に、前記基端フラップの上部分に対して折り返されて、前記上面の前側の表面に重ね合わされており、前記罫線Ｒ_Ｂ及び前記罫線Ｒ_Ｃは、前記罫線Ｒ_Ａに交差するように前記底面から前記基端フラップに延び、前記罫線Ｒ_Ｒに交差するように前記基端フラップを上下方向に横切り、前記罫線Ｒ_Ｓに交差するように前記基端フラップから前記先端フラップに延び、前記基端フラップにおける前記罫線Ｒ_Ｂの左側は、前記罫線Ｒ_Ｂで折り返されることで、前記基端フラップにおける前記罫線Ｒ_Ｂと前記罫線Ｒ_Ｃの間の前面より前方に突出しており、前記基端フラップにおける前記罫線Ｒ_Ｃの右側は、前記罫線Ｒ_Ｃで折り返されることで、前記基端フラップにおける前記罫線Ｒ_Ｂと前記罫線Ｒ_Ｃの間の前面より前方に突出しており、前記後面における前記罫線Ｒ_Ｂより左側は、前記罫線Ｒ_Ｂで折り返されることで、前記後面における前記罫線Ｒ_Ｂと前記罫線Ｒ_Ｃの間の後面より後方に突出しており、前記後面における前記罫線Ｒ_Ｃより右側は、前記罫線Ｒ_Ｃで折り返されることで、前記後面における前記罫線Ｒ_Ｂと前記罫線Ｒ_Ｃの間の後面により後方に突出しており、前記基端フラップにおける前記罫線Ｒ_Ｂより左端側と、前記左側面における前記罫線Ｒ_Ａより前端側とは、前記罫線Ｒ_Ｂと前記罫線Ｒ_Ａとの交点から左前上方に向かって延びる罫線Ｒ_Ｆを境に折返し自在連結されており、前記基端フラップにおける前記罫線Ｒ_Ｃより右端側と、前記右側面における前記罫線Ｒ_Ａより前端側とは、前記罫線Ｒ_Ｃと前記罫線Ｒ_Ａとの交点から右前上方に向かって延びる罫線Ｒ_Ｊを境に折返し自在連結されており、前記左サイドフラップは、前記罫線Ｒ_Ｇより上側に位置する前記左側面の上側に重ね合わされており、前記左サイドフラップの左端は、前記罫線Ｒ_Ｇと、前記罫線Ｒ_Ｇより上側に位置する前記罫線Ｒ_Ｂと、の上下方向の中間に位置しており、前記右サイドフラップは、前記罫線Ｒ_Ｋより上側に位置する前記右側面の上側に重ね合わされており、前記右サイドフラップの右端は、前記罫線Ｒ_Ｋと、前記罫線Ｒ_Ｋより上側に位置する前記罫線Ｒ_Ｃと、の上下方向の中間に位置しており、前記罫線Ｒ_Ｇより上側に位置する前記左側面における前側の辺Ｆ_Ｂは、前記罫線Ｒ_Ｇを境に前記左側面を折り返した際に、前記罫線Ｒ_Ｒを境に後方に折り返された前記基端フラップの前記上部分の左側の辺Ｆ_Ｃと突き合わせる位置になり、前記罫線Ｒ_Ｋより上側に位置する前記右側面における前側の辺は、前記罫線Ｒ_Ｋを境に前記右側面を折り返した際に、前記罫線Ｒ_Ｒを境に後方に折り返された前記基端フラップの前記上部分の右側の辺と突き合わせる位置になる構造を備えており、前記上面には、当該上面の左後隅から前記上面の中央側に向かって延びる左の罫線Ｒ_Ｑが形成されており、前記左の罫線Ｒ_Ｑと、前記罫線Ｒ_Ｇより上側に位置する前記左側面の後側に形成された傾斜した斜辺と、前記罫線Ｒ_Ｐより前側に位置する前記後面において左側に形成された罫線Ｒ_Ｎとが、前記折り畳まれた状態において同一線上に位置しており、前記上面には、当該上面の右後隅から前記上面の中央側に向かって延びる右の罫線Ｒ_Ｑが形成されており、前記右の罫線Ｒ_Ｑと、前記罫線Ｒ_Ｋより上側に位置する前記右側面の後側に形成された傾斜した斜辺と、前記罫線Ｒ_Ｐより前側に位置する前記後面において右側に形成された罫線Ｒ_Ｏとが、前記折り畳まれた状態において同一線上に位置しており、前記左側面及び右側面の前縁には、前記組立状態において、前記基端フラップの前記上部分の裏面に面状態で接触することで、前記開口部の封緘性を向上させる補助フラップがそれぞれ設けられており、前記左側面の前記補助フラップは、前記罫線Ｒ_Ｇより上側に位置する前記左側面の前側の辺Ｆ_Ｂと同じ位置に設けられる折返線Ｆ_Ｄを境に折り返し可能とされており、前記基端フラップの裏面における前記罫線Ｒ_Ｒより上側、且つ、前記罫線Ｒ_Ｂより左側に面状態で接触可能に形成されており、前記右側面の前記補助フラップは、前記罫線Ｒ_Ｋより上側に位置する前記右側面の前側の辺と同じ位置に設けられる折返線を境に折り返し可能とされており、前記基端フラップの裏面における前記罫線Ｒ_Ｒより上側、且つ、前記罫線Ｒ_Ｃより右側に面状態で接触可能に形成されており、前記基端フラップと前記左サイドフラップとの間には、前記罫線Ｒ_Ｇより上側に位置する前記左側面の上側の表面に面状態で接触可能な左接続片が設けられており、前記基端フラップと前記右サイドフラップとの間には、前記罫線Ｒ_Ｋより上側に位置する前記右側面の上側の表面に面状態で接触可能な右接続片が設けられており、前記左接続片は、前記左サイドフラップとの間に形成された前記罫線Ｒ_Ｓと、前記罫線Ｒ_Ｒより上側に位置する前記基端フラップの左側の辺Ｆ_Ｃと、前記左サイドフラップの左端に形成される辺の延長線とで囲まれた三角形状に形成されており、前記右接続片は、前記右サイドフラップとの間に形成された前記罫線Ｒ_Ｓと、前記罫線Ｒ_Ｒより上側に位置する前記基端フラップの右側の辺と、前記右サイドフラップの右端に形成される辺の延長線とで囲まれた三角形状に形成されていることを特徴とする。 In order to solve the above problems, the delivery body of the present invention employs the following technical measures.
That is, the delivery body of the present invention is a delivery body made of cardboard that is capable of being transformed into a state in which it is folded into a flat bag shape and a state in which it is assembled into a box shape having a top surface, a bottom surface, a rear surface, a left side surface, and a right side surface, and in the assembled state, the bottom surface is formed into a rectangular shape surrounded by a front end crease R A extending in the left-right direction, a left end crease R B extending in the front-back direction, a right end crease R C extending in the front-back direction, and a rear end crease R D extending in the left-right direction, and the left side surface is connected to the left side of the bottom surface at the crease R _B so as to be freely folded, and has a structure in which the middle part in the up-down direction protrudes toward the left at the crease R _G that crosses the left side surface in the front-back direction, and the right side surface is formed into a rectangular shape surrounded by a front end crease R _A extending in the left-right direction, a left end crease R B extending in the front-back direction, a right end crease R _C extending in the front-back direction, and a rear end crease R D extending in the left-right direction, and the left side surface is connected to the left side of the bottom surface so as to be freely folded at the crease R _B , and is bent so that the middle part in the up-down direction protrudes toward the left at the crease R _G that crosses the left side surface in the front-back direction, and the right side surface is formed into a rectangular shape surrounded by a front end crease R A extending in the left-right direction, The rear surface is connected to the rear side of the bottom surface at the boundary line _{R C} so as to be freely folded back, and has a structure in which a vertical middle portion protrudes toward the right at a boundary line R _K that crosses the right side surface in the front-rear direction, the rear surface is connected to the rear side of the bottom surface at the boundary line R _D so as to be freely folded back, and has a structure in which a vertical middle portion protrudes toward the rear at a boundary line R _P that crosses the rear surface in the left-right direction, the top surface has a side extending in the left-right direction along the upper end of the opening, the line R _{B that continues from the bottom surface, passes through the rear surface, and extends to the upper end of the opening in the top surface, the line R C} that continues from the bottom surface, passes through the rear surface, and extends to the upper end of the opening in the top surface, _and the line R that extends in the left-right direction at the upper end of the rear surface. The folded flap has a base end flap that can close the opening when folded back, a tip flap that can come into contact with the upper surface in a surface state, a left side flap that is freely foldable provided on the left edge of _{the tip} flap, and a right side flap that is freely foldable provided on the right edge of the tip flap. The base end flap has a lower portion that is freely foldable and connected to the bottom surface of the delivery body at the boundary of the crease R _A , and an upper portion that is folded back to the rear at the boundary of the crease R _R that crosses the base end flap in the left-right direction, and has a structure in which the middle portion in the up-down direction is folded back to protrude forward, and the tip flap is folded back to the upper portion of the base end flap at the boundary of the crease R _S that extends in the left-right direction above the crease R _A , and is superimposed on the front surface of the upper surface, and the crease R _B and the crease R _C are aligned with each other. A crease extends from the bottom surface to the base end flap so as to intersect with line _{R A} , crosses the base end flap in the up-down direction so as to intersect with line R _R , and extends from the base end flap to the tip flap so as to intersect with line R _S , the left side of the crease R _B on the base end flap is folded back at line R _B and protrudes forward from the front surface between line R _B and line R _C on the base end flap, the right side of the crease R _C on the base end flap is folded back at line R _C and protrudes forward from the front surface between line R _B and line R _C on the base end flap, the left side of the crease R B on the rear surface is folded back at line R _B and protrudes rearward from the rear surface between line R _B and line R C on the rear surface, and the right side of the crease R _C on the rear surface is folded back at line R _B and protrudes rearward from the rear surface between line R _B and line R C on the rear surface. The left end side of the base end flap from the _crease R _B and the front end side of the crease R _A on the left side surface are freely folded back and connected at a crease R _{F that extends from the intersection of the crease R B} _and the crease R _A toward the upper left front side, and the right end side of the base end flap from the crease R _C and the front end side of the crease R _A on the right side surface are freely folded back and connected at a crease R _J that extends from the intersection of the crease _{R C} _and the crease R _A toward the upper right front side, and the left side flap is overlapped on the upper side of the left side surface located above the crease R _G , and the left end of the left side flap is connected to the crease R _G and the crease R A located above _the crease R _G. The right side flap is overlapped on the upper side of the right side surface located above the crease line R _K , and the right end of the right side flap is located midway in the up- _down direction between the crease line R _K and the crease line R _C located above the crease line R _K , and the front side F _B of the left side surface located above the crease line R _G is in a position to abut against the left side F C of the upper part of the base end flap folded backward at the crease line R _R when the left side surface is folded back at the crease line R _G , and the front side of the right side surface located above the crease line R _K is in a position to abut against the left side F _C of the upper part of the base end flap folded backward at the crease line R _R when the right side surface is folded back at the crease line R K. The upper surface has a structure in which the right side of the upper portion of the base end flap folded back at the boundary _R is butted against the right side of the upper portion of the base end flap folded back at the boundary R, and a left crease _RQ extending from the left rear corner of the upper surface toward the center of the upper surface is formed on the upper surface, and the left crease _RQ , an inclined oblique side formed on the rear side of the left side surface located above the crease _RG , and a crease _RN formed on the left side of the rear surface located forward of the crease _RP are positioned on the same line in the folded state, and a right crease _RQ extending from the right rear corner of the upper surface toward the center of the upper surface is formed on the upper surface, and the right crease RQ, an inclined oblique side formed on the rear side of the right side surface located above the crease _RK , and a crease _RN formed on the right side of the rear surface located forward of the crease _RP are positioned on the same line in the folded state. _O are located on the same line in the folded state, and auxiliary flaps are provided at the front edges of the left and right sides, which improve the sealing of the opening by coming into face-to-face contact with the back surface of the upper part of the base end flap in the assembled state, and the auxiliary flap on the left side side can be folded back at a fold line F _D provided at the same position as the front side F B of the left side side located above the crease line R _G , and is formed so as to be able to come into face-to-face contact with the back surface of the base end flap above the crease line R _R _{and to the left of the crease line R B} _, and the _auxiliary flap on the right side can be folded back at a fold line provided at the same position as the front side of the right side side located above the crease line R _K , and is formed so as to be able to come into face-to-face contact with the back surface of the base end flap above the crease line R _R and to the right of the crease line R C, and the crease line R a left connecting piece is provided which can be in surface contact with an upper surface of the left side surface located above the crease R 1- _G , and a right connecting piece is provided between the base end flap and the right side flap which can be in surface contact with an upper surface of the right side surface located above the crease R 1 _-K , the left connecting piece is formed in a triangular shape surrounded by the crease R 1- _S formed between the left side flap, the left side edge F 1 _-C of the base end flap located above the crease R 1 _-R , and an extension of an edge formed at the left end of the left side flap, and the right connecting piece is formed in a triangular shape surrounded by the crease R 1 _-S formed between the right side flap, the right side of the base end flap located above the crease R 1- _R , and an extension of an edge formed at the right end of the right side flap.

なお、好ましくは、前記組立状態において、前記先端フラップには、開封時に前記折返フラップを分離して前記開口部を開口するための切り取り線が形成されているとよい。 Preferably, in the assembled state, the tip flap has a cut line formed thereon for separating the fold-back flap to open the opening when opening the package.

なお、好ましくは、前記罫線Ｒ _Ｇより上側に位置する前記左側面は、前記上面の左端に形成された罫線Ｒ _Ｂに沿って折り曲げられることで、前記左側面自体の罫線の有無に関係なく下方に折り曲げられており、前記罫線Ｒ _Ｋより上側に位置する前記右側面は、前記上面の右端に形成された罫線Ｒ _Ｃに沿って折り曲げられることで、前記右側面自体の罫線の有無に関係なく下方に折り曲げられているとよい。
なお、好ましくは、前記補助フラップは、面内を横切る罫線を有しないとよい。 Preferably, the left side surface located above the line R _G is folded downward along a line R _B formed at the left end of the top surface, regardless of whether or not there is a line on the left side surface itself, and the right side surface located above the line R _K is folded downward along a line R _C formed at the right end of the top surface, regardless of whether or not there is a line on the right side surface itself.
Preferably, the auxiliary flap does not have any lines crossing its surface .

なお、好ましくは、前記配送体は、両面段ボールシートから構成されており、前記両面段ボールシートの表裏ライナー及び中芯には、それぞれ坪量50～120ｇ/ｍ^２の原紙が用いられており、前記両面段ボールシートは、Ａフルート、Ｂフルート、またはＣフルートのいずれか一つであるとよい。 Preferably, the delivery body is made of a double-sided corrugated cardboard sheet, the front and back liners and the core of the double-sided corrugated cardboard sheet are made of base paper having a basis weight of 50 to 120 g/ ^m2 , and the double-sided corrugated cardboard sheet is any one of A-flute, B-flute, and C-flute.

本発明の配送体によれば、厚みがある収納物を内部に収納可能なものでありながら、低い材料コストで、開口部の封緘性をさらに良好にすることができる。 The delivery body of the present invention is capable of storing thick items inside, while at the same time improving the sealing of the opening at low material costs.

収納物を収納する前の折り畳まれた状態の配送体を示した斜視図である。FIG. 2 is a perspective view showing the delivery body in a folded state before storing items. 組み立てる前の第１実施形態の配送体の展開図である。FIG. 2 is a development view of the delivery body of the first embodiment before assembly. 第１実施形態の配送体を、折返フラップによる開閉状態の差で比較して示した図である。11A to 11C are diagrams illustrating the delivery body of the first embodiment, comparing the difference between the open and closed states of the fold-back flaps. 第１実施形態の配送体を、収納物の出入状態の差で比較して示した図である。11A to 11C are diagrams illustrating the delivery body of the first embodiment, in comparison with the difference in the state in which stored items are inserted and removed. 折返フラップを折り返した場合における左側の側面と左サイドフラップとの接触関係を示した図である。13 is a diagram showing the contact relationship between the left side surface and the left side flap when the fold-back flap is folded back. FIG. 右側の側面と右サイドフラップとの接触箇所を、右後方より仰観した示した図である。This is a diagram showing the contact point between the right side surface and the right side flap, viewed from above from the rear right. 収納物を収納した状態における、第２実施形態の配送体の展開図である。FIG. 11 is a development view of the delivery body of the second embodiment with an item stored therein.

［第１実施形態］
以下、本発明の配送体１の実施形態を、図面に基づき詳しく説明する。
図１は、第１実施形態の配送体１を模式的に示したものである。
図１に示すように、第１実施形態の配送体１は、収納物Ｓを収納していない状態、言い換えれば使用前の折り畳まれた状態のものであり、１枚のダンボール紙を折り返すと共に糊付けすることで、上下方向の厚みが薄い、扁平で横長な封筒状に形成されている。また、第１実施形態の配送体１は、前方に向かって開口する袋状（収納物Ｓを収納した場合は箱状）に形成されている。 [First embodiment]
Hereinafter, an embodiment of the delivery body 1 of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic diagram showing a delivery body 1 according to the first embodiment.
1, the delivery body 1 of the first embodiment is in a state where no storage item S is stored, in other words, in a folded state before use, and is formed into a flat, horizontally long envelope shape with a thin thickness in the vertical direction by folding and gluing a single sheet of cardboard. Also, the delivery body 1 of the first embodiment is formed into a bag shape (a box shape when the storage item S is stored) that opens toward the front.

ところで、上述した配送体１を、どのような向きで用いるかは使用者によってまちまち
であるので、以降の説明においては、図１に示すように横長の開口部２が正面に向くように横倒し状態とされた配送体１に対して、この開口部２を正面に見る方向から配送体１を見た場合の方向を、配送体１を説明する場合の方向とする。これらの方向は、図１において、矢印を用いて図示している。 Incidentally, the orientation in which the above-mentioned delivery body 1 is used varies from user to user, so in the following description, the direction in which the delivery body 1 is described will be the direction in which the delivery body 1 is viewed from the front, with the delivery body 1 laid on its side so that the horizontally elongated opening 2 faces forward, as shown in Fig. 1. These directions are illustrated by arrows in Fig. 1.

図１に示すように、上述した第１実施形態の配送体１は、扁平な袋状に折り畳まれた状態となっている。言い換えれば収納物Ｓを収納する前の状態（使用前状態）においては、第１実施形態の配送体１は、ダンボール用紙を上下に２枚重ね合わされたような外観を備えており、重ね合わされた２枚のダンボール用紙の間に形成される開口部２を前方に向かって開口した状態となっている。 As shown in FIG. 1, the delivery body 1 of the first embodiment described above is folded into a flat bag shape. In other words, before the storage item S is stored (before use), the delivery body 1 of the first embodiment has an appearance of two cardboard sheets stacked one on top of the other, with the opening 2 formed between the two stacked cardboard sheets facing forward.

図４に示すように、具体的には、第１実施形態の配送体１は、箱状に変形前は扁平で薄型の外観を有する袋状に形成されているが、開口部２を上下に広げることで、内側に収納物Ｓを収納可能な箱状に変形可能となっている。箱状に変形した際の配送体１の寸法は、左右方向の寸法（横幅）が１００ｍｍ～５００ｍｍ、前後方向の寸法（奥行き）が１００ｍｍ～５００ｍｍ、上下方向の寸法（厚み）が最大で１５０ｍｍとされており、厚みがある収納物Ｓであっても収納可能となっている。例えば、本実施形態の配送体１の場合であれば、箱状に変形した際には、横幅３００ｍｍ、奥行き２５０ｍｍ、厚み７０ｍｍ程度の収納物Ｓでも収納可能となっている。 As shown in FIG. 4, specifically, the delivery body 1 of the first embodiment is formed in a bag shape with a flat and thin appearance before being transformed into a box shape, but by expanding the opening 2 vertically, it can be transformed into a box shape that can store an item S inside. When transformed into a box shape, the dimensions of the delivery body 1 are 100 mm to 500 mm in the left-right dimension (width), 100 mm to 500 mm in the front-back dimension (depth), and a maximum of 150 mm in the up-down dimension (thickness), so that even a thick item S can be stored. For example, in the case of the delivery body 1 of this embodiment, when transformed into a box shape, even an item S with a width of 300 mm, a depth of 250 mm, and a thickness of about 70 mm can be stored.

具体的には、箱状に変形した第１実施形態の配送体１は、前後左右上下の６面のうち、上面３Ｕ、底面３Ｄ、左側面３Ｌ、右側面３Ｒ、及び後面３Ｂの５面がダンボール用紙の壁面で囲まれ、前側だけが開口部２となっている配送体本体３と、配送体本体３の底面３Ｄに対して折り返し自在に設けられて、開口部２を閉鎖可能な折返フラップ４と、配送体本体３の左側面３Ｌ及び右側面３Ｒの前側上縁に折り返し自在に設けられた補助フラップ７と、を有している。これらの配送体本体３、折返フラップ４、及び補助フラップ７は、図２に示すような１枚のダンボール用紙を折り返すことで組み上げられている。 Specifically, the delivery body 1 of the first embodiment, which has been transformed into a box shape, has five of the six sides (front, back, left, right, top and bottom) surrounded by cardboard walls: the top 3U, bottom 3D, left side 3L, right side 3R, and back 3B, with only the front side being the opening 2; a fold-back flap 4 that can be folded back on the bottom 3D of the delivery body 3 and can close the opening 2; and an auxiliary flap 7 that can be folded back on the front upper edge of the left side 3L and right side 3R of the delivery body 3. The delivery body 3, fold-back flap 4, and auxiliary flap 7 are assembled by folding back a single sheet of cardboard as shown in FIG. 2.

例えば、本実施形態の配送体１は、内部にＡ４サイズの書籍がちょうど収まるサイズに形成されており、折返フラップ４を折り返して開口部２を閉鎖した上で、折り返した折返フラップ４をテープなどで配送体本体３に留めることで、収納物Ｓを封緘状態（密閉状態）に保ったまま、トラックなど（自動車）、列車、飛行機、船舶、自動二輪、自転車などを用いて運搬できるようになっている。 For example, the delivery body 1 of this embodiment is formed to a size that is just large enough to fit an A4-sized book inside, and by folding back the fold-back flap 4 to close the opening 2 and then fastening the folded back fold-back flap 4 to the delivery body 3 with tape or the like, the contents S can be kept sealed (sealed) and transported by truck (automobile), train, airplane, ship, motorcycle, bicycle, etc.

次に、上述した配送体１の各部材について、詳しく説明する。
図１～図４に示すように、配送体本体３は、図２に示すような１枚のダンボールを、図中に点線で示された罫線（折り返し線）を境に谷折りして角箱状（角筒状）に形成されており、上面３Ｕ、底面３Ｄ、左側面３Ｌ、右側面３Ｒ、及び後面３Ｂを有している。また、配送体本体３の前側には、横長の開口部２が前方に向けて開口するように設けられている。 Next, each component of the delivery body 1 described above will be described in detail.
As shown in Figures 1 to 4, the delivery body 3 is formed into a square box (square tube) by folding a sheet of cardboard as shown in Figure 2 along a line (fold line) shown by a dotted line in the figure, and has a top surface 3U, a bottom surface 3D, a left side surface 3L, a right side surface 3R, and a rear surface 3B. In addition, a horizontally long opening 2 is provided on the front side of the delivery body 3 so as to open toward the front.

上述した配送体本体３の底面３Ｄは、前後方向に比べて左右方向に長い長方形の形状であって、水平方向に沿うように配備されている。図２の展開図の中央に淡いグレーで示すように、底面３Ｄの下側（図４の組立状態における前側）には、後述する折返フラップ４が罫線Ｒ _Ａ（図２においてＲ_Ａで示す点線）を境に折り曲げ自在に連結されている。また、底面３Ｄの左側には左側面３Ｌが罫線Ｒ _Ｂ（図２においてＲ_Ｂで示す点線）を境に折り曲げ自在に連結されており、底面３Ｄの右側には右側面３Ｒが罫線Ｒ _Ｃ（図２においてＲ_Ｃで示す点線）を境に折り曲げ自在に連結されている。さらに、底面３Ｄの上側（図４の組立状態における後側）には後面３Ｂが罫線Ｒ _Ｄ（図２においてＲ_Ｄで示す点線）を境に折り曲げ自在に連結されている。 The bottom surface 3D of the delivery body 3 described above has a rectangular shape that is longer in the left-right direction than in the front-rear direction, and is arranged along the horizontal direction. As shown in light gray in the center of the development view of Fig. 2, the lower side of the bottom surface 3D (the front side in the assembled state of Fig. 4) is connected to the fold-back flap 4 described later at the boundary of the line R _A (the dotted line indicated by R _A in Fig. 2) in a manner that allows it to be folded. In addition, the left side surface 3L is connected to the left side of the bottom surface 3D at the boundary of the line R _B (the dotted line indicated by R _B in Fig. 2), and the right side surface 3R is connected to the right side of the bottom surface 3D at the boundary of the line R _C (the dotted line indicated by R _C in Fig. 2). Furthermore, the rear surface 3B is connected to the upper side of the bottom surface 3D (the rear side in the assembled state of Fig. 4) in a manner that allows it to be folded at the boundary of the line R _D (the dotted line indicated by R _D in Fig. 2).

図４の下側に示すように、左側面３Ｌは、配送体本体３の左側に起立状に配備される部材であり、前方（または後方）から見た場合に左方に向かって突出するようにくの字状（略Ｌ字状）に折り曲げられた断面を有している。また、右側面３Ｒは、配送体本体３の右側に起立状に配備される部材であり、前方（または後方）から見た場合に右方に向かって突出するようにくの字状に折り曲げられた断面を有している。 As shown in the lower part of FIG. 4, the left side surface 3L is a member that is arranged upright on the left side of the delivery body 3, and has a cross section that is bent in a dogleg shape (approximately L-shape) so as to protrude to the left when viewed from the front (or rear). The right side surface 3R is a member that is arranged upright on the right side of the delivery body 3, and has a cross section that is bent in a dogleg shape so as to protrude to the right when viewed from the front (or rear).

この左側面３Ｌ及び右側面３Ｒは、図２の展開図において前後方向に長い六角形に形成された部材である。左側面３Ｌは、図２に示す展開状態においては、上述した罫線Ｒ _Ｂを介して底面３Ｄの左側に連結されるだけでなく、罫線Ｒ _Ｅ（図２においてＲ_Ｅで示す点線）を介して後面３Ｂの左下側に連結されており、罫線Ｒ _Ｆ（図２においてＲ_Ｆで示す点線）を介して折返フラップ４の左上側に連結されている。この展開図において、罫線Ｒ _Ｅは左上から右下に向かって傾斜状に形成され、罫線Ｒ _Ｆは左下から右上に向かって傾斜状に形成されている。また、左側面３Ｌの中央には、図２の上下方向（図４の組立状態における前後方向）に伸びる罫線Ｒ _Ｇ（図２においてＲ_Ｇで示す点線）が形成されており、袋状に形成する場合などに前方（または後方）から見た場合の断面が左方に突出したくの字状に折り曲げ（折り返し）可能とされている。また、箱状に変形させる場合はこの折り曲げ部分を伸展させて、収納物Sを入れることができるようになっている。さらに、左側面３Ｌの左側には、糊代部分が形成されており、箱状に組み立てる際に左側面３Ｌの左端側を配送体本体３の上面３Ｕに沿うように糊付けに用いることができるようになっている。 The left side surface 3L and the right side surface 3R are members formed in a hexagonal shape elongated in the front-rear direction in the development view of Fig. 2. In the development state shown in Fig. 2, the left side surface 3L is not only connected to the left side of the bottom surface 3D via the above-mentioned line R _B , but also connected to the lower left side of the rear surface 3B via line R _E (dotted line indicated by R _E in Fig. 2) and connected to the upper left side of the fold-back flap 4 via line R _F (dotted line indicated by R _F in Fig. 2). In this development view, the line R _E is formed with an inclination from the upper left to the lower right, and the line R _F is formed with an inclination from the lower left to the upper right. In addition, a line R _G (dotted line indicated by R _G in Fig. 2) extending in the vertical direction of Fig. 2 (front-rear direction in the assembled state of Fig. 4) is formed in the center of the left side surface 3L, and when forming it into a bag shape, it can be folded (folded back) into a dogleg shape whose cross section when viewed from the front (or rear) protrudes to the left. When transforming the container into a box shape, the folded portion can be extended to allow the container to hold the item S. Furthermore, a glue tab is formed on the left side of the left side surface 3L, so that the left end of the left side surface 3L can be used for gluing along the upper surface 3U of the delivery body 3 when assembling the container into a box shape.

一方、上述した右側面３Ｒは、図２に示す展開状態においては、上述した罫線Ｒ _Ｃを介して底面３Ｄの右側に連結されるだけでなく、罫線Ｒ _Ｉ（図２においてＲ_Ｉで示す点線）を介して後面３Ｂの右下側に連結されており、罫線Ｒ _Ｊ（図２においてＲ_Ｊで示す点線）を介して折返フラップ４の右上側に連結されている。この展開図において、罫線Ｒ _Ｉは左下から右上に向かって傾斜状に形成され、罫線Ｒ _Ｆは左上から右下に向かって傾斜状に形成されている。また、右側面３Ｒの中央には、図２の上下方向（図４の組立状態における前後方向）に伸びる罫線Ｒ _Ｋ（図２においてＲ_Ｋで示す点線）が形成されており、袋状に形成する場合などに前方（または後方）から見た場合の断面が右方に突出したくの字状に折り曲げ（折り返し）可能とされている。また、箱状に変形させる場合はこの折り曲げ部分を伸展させて、収納物Ｓを入れることができるようになっている。さらに、右側面３Ｒの右側には、糊代部分が形成されており、箱状に組み立てる際に右側面３Ｒの右端側を配送体本体３の上面３Ｕに沿うように糊付けに用いることができるようになっている。 On the other hand, in the unfolded state shown in Fig. 2, the above-mentioned right side surface 3R is not only connected to the right side of the bottom surface 3D via the above-mentioned crease R _C , but also connected to the lower right side of the rear surface 3B via a crease R _I (a dotted line indicated by R _I in Fig. 2) and connected to the upper right side of the fold-back flap 4 via a crease R _J (a dotted line indicated by R _J in Fig. 2). In this unfolded view, the crease R _I is formed with an inclination from the lower left to the upper right, and the crease _RF is formed with an inclination from the upper left to the lower right. In addition, a crease R _K (a dotted line indicated by R _K in Fig. 2) extending in the vertical direction of Fig. 2 (the front-rear direction in the assembled state of Fig. 4) is formed in the center of the right side surface 3R , and when forming it into a bag-like shape, the cross section when viewed from the front (or rear) can be folded (folded back) into a dogleg shape that protrudes to the right. When deforming it into a box-like shape, the folded part is extended so that the stored item S can be placed inside. Furthermore, a glue tab is formed on the right side of the right side surface 3R, so that when assembling the right side surface 3R into a box shape, the right end side of the right side surface 3R can be used for gluing along the upper surface 3U of the delivery body main body 3.

配送体本体３の後面３Ｂは、箱状に変形させた場合に、後方から見て左右方向に横長の六角形の外観となるように形成されている。この後面３Ｂは、左方（または右方）から見た場合に後方に向かって断面がくの字状に突出するように折り曲げられている。
図２の展開状態において濃いグレーで示すように、配送体本体３の後面３Ｂは、上述した罫線Ｒ _Ｄを介して底面３Ｄの上側に連結されるとともに、罫線Ｒ _Ｅを介して左側面３Ｌの右上側、かつ、罫線Ｒ _Ｉを介して右側面３Ｒの左上側に連結されている。また、後面３Ｂは、左右方向に伸びる罫線Ｒ _Ｍ（図２においてＲ_Ｍで示す点線）を境に折り曲げ自在に上面３Ｕに連結されている。さらに、後面３Ｂは、罫線Ｒ _Ｎ（図２においてＲ_Ｎで示す点線）を介して上面３Ｕの左端にあるフラップ（配送体の状態では後述する左側面３Ｌの裏面と面接触する部材）に連結されており、罫線Ｒ _Ｏ（図２においてＲ_Ｏで示す点線）を介して上面３Ｕの右端にあるフラップ（配送体の状態では後述する右側面３Ｒの裏面と面接触する部材）に連結されている。罫線Ｒ _Ｎは左下から右上に向かって傾斜状に形成されており、罫線Ｒ _Ｏは左上から右下に向かって傾斜状に形成されている。また、後面３Ｂの中央には、図２の左右方向（図４の組立状態における左右方向）に伸びる罫線Ｒ _Ｐ（図２においてＲ_Ｐで示す点線）が形成されており、袋状に形成される場合などに左方（または右方）から見た断面が後方に突出したくの字状に折り曲げ（折り返し）可能とされている。
また、箱状に変形させる場合はこの折り曲げ部分を伸展させて、収納物Ｓを入れることができるようになっている。 The rear surface 3B of the delivery body 3 is formed so that when it is deformed into a box shape, it has a hexagonal appearance that is long in the left-right direction when viewed from the rear. This rear surface 3B is bent so that the cross section protrudes backward in a dogleg shape when viewed from the left (or right).
As shown in dark gray in the unfolded state in Fig. 2, the rear surface 3B of the delivery body main body 3 is connected to the upper side of the bottom surface 3D via the above-mentioned line R _D , and is connected to the upper right side of the left side surface 3L via line R _E and to the upper left side of the right side surface 3R via line R _I. The rear surface 3B is connected to the upper surface 3U so as to be freely folded at the boundary of the line R _M (dotted line indicated by R _M in Fig. 2) extending in the left-right direction. Furthermore, the rear surface 3B is connected to a flap at the left end of the upper surface 3U via line R _N (dotted line indicated by R _N in Fig. 2) (a member that comes into surface contact with the back surface of the left side surface 3L described later in the delivery body state), and is connected to a flap at the right end of the upper surface 3U via line R _O (dotted line indicated by R _O in Fig. 2) (a member that comes into surface contact with the back surface of the right side surface 3R described later in the delivery body state). The crease R _N is formed at an angle from the lower left to the upper right, and the crease R _O is formed at an angle from the upper left to the lower right. In addition, a crease R _P (dotted line indicated by R P in FIG. 2) extending in the left-right direction in FIG. 2 (the left-right direction in the assembled state in FIG. 4) is formed in the center of the rear surface _3B , so that when the bag is formed into a bag shape, the cross section viewed from the left (or right) can be folded (folded back) into a dogleg shape protruding rearward.
When the container is to be transformed into a box shape, the folded portion is extended so that an item S can be placed inside the container.

配送体本体３の上面３Ｕは、箱状に変形させた場合に、上下方向に比べて左右方向に長い長方形に形成された部材であり、図４の組立状態において上述した底面３Ｄとほぼ平行となるように、言い換えればほぼ水平方向に沿うように配備されている。配送体本体３の上面３Ｕは、図２に淡いグレーで示す展開状態において、上述した罫線Ｒ _Ｍを介して折り曲げ自在に後面３Ｂに連結されている。上面３Ｕの中央には、組立状態で上面３Ｕを上方に持ち上げた場合に上方に向かって変形しやすいように、折り目線として罫線Ｒ _Ｑ（図２においてＲ_Ｑで示す点線）が形成されている。この罫線Ｒ _Ｑは、本実施形態の場合であれば、左下から右上並びに左上から右下に向かって傾斜状に形成された２本の線分と、上下方向及び左右方向に伸びる３本の直線線分とを繋ぎ合わせたものとなっている。 The upper surface 3U of the delivery body main body 3 is a member formed into a rectangle that is longer in the left-right direction than in the up-down direction when it is deformed into a box shape, and is arranged so as to be approximately parallel to the bottom surface 3D described above in the assembled state of FIG. 4, in other words, approximately along the horizontal direction. The upper surface 3U of the delivery body main body 3 is connected to the rear surface 3B via the above-mentioned line R _M in a freely foldable manner in the unfolded state shown in light gray in FIG. 2. In the center of the upper surface 3U, a line R Q (a dotted line shown by R _Q in FIG. 2 _{) is formed as a fold line so that the upper surface 3U can be easily deformed upward when lifted upward in the assembled state. In the case of this embodiment, this line R Q} is _formed by connecting two line segments formed in an inclined manner from the lower left to the upper right and from the upper left to the lower right, and three straight line segments extending in the up-down and left-right directions.

図３に示すように、配送体１は、罫線Ｒ _Ａを境に左側面３Ｌの左部分を右側に向かって折り返し、罫線Ｒ _Ｋを境に右側面３Ｒの右部分を左側に向かって折り返し、さらに罫線Ｒ _Ｐを境に後面３Ｂの上部分と上面３Ｕを前側に向かって折り返し、折り返された上面３Ｕの上に、折り返された左側面３Ｌの左部分、右側面３Ｒの右部分とを被せることで、袋状に形成される。上面３Ｕ、左側面３Ｌの左部分、右側面３Ｒの右部分、後面３Ｂの上部分とで構成される面と、左側面３Ｌの右部分、右側面３Ｒの左部分、後面３Ｂの下部分、及び底面３Ｄとで構成される面とで囲まれた中央には空間が形成され、厚みのない収納物など収納可能なようになっている。この収納室は、前方に向かって開口部２を開口しており、この開口部２から収納物を収容室に出し入れ可能となっている。また、罫線Ｒ _Ｒを境に折返フラップ４の下部分を後側に向かって折り返すことで、袋状に形成された配送体を封緘することができる。 As shown in Fig. 3, the delivery body 1 is formed into a bag _shape by folding back the left part of the left side surface 3L toward the right side at the boundary line RA , folding back the right part of the right side surface _{3R toward the left side at the boundary line RK} , and further folding back the upper part of the rear surface _{3B and the upper surface 3U toward the front side at the boundary line RP} , and covering the folded-back upper surface 3U with the left part of the folded-back left side surface 3L and the right part of the folded-back right side surface 3R. A space is formed in the center surrounded by the surface consisting of the upper surface 3U, the left part of the left side surface 3L, the right part of the right side surface 3R, the upper part of the rear surface 3B, and the surface consisting of the right part of the left side surface 3L, the left part of the right side surface 3R, the lower part of the rear surface 3B, and the bottom surface 3D, so that a thin storage object can be stored. This storage chamber has an opening 2 facing forward, and the storage object can be put in and taken out of the storage chamber through this opening 2. Furthermore, by folding back the lower portion of the fold flap 4 along the line R _R toward the rear, the bag-shaped delivery item can be sealed.

図４に示すように、上述した配送体本体３では、底面３Ｄに対して、罫線Ｒ _Ｂを境に左側面３Ｌを右側に向かって折り返し、罫線Ｒ _Ｃを境に右側面３Ｒを左側に向かって折り返し、さらに罫線Ｒ _Ｄ，Ｒ _Ｅ，Ｒ _Ｉを境に後面３Ｂを前側に向かって折り返し、折り返された後面３Ｂの上から、さらに罫線Ｒ _Ｎ、Ｒ _Ｍ、Ｒ _Ｏを境に上面３Ｕを折り返すと、上面３Ｕ、左側面３Ｌ、右側面３Ｒ、後面３Ｂ、及び底面３Ｄの５面で囲まれた中央に、収納物Ｓを収納可能な収納室が形成されるようになっている。この収納室は、前方に向かって開口部２を開口しており、この開口部２から収納物Ｓを収容室に出し入れ可能となっている。 As shown in Fig. 4, in the above-mentioned delivery body 3, the left side 3L is folded back toward the right side at the line R _B with respect to the bottom 3D, the right side 3R is folded back toward the left side at the line R _C , the rear side 3B is folded back toward the front at the lines R _D , R _E , and R _I , and from above the folded rear side 3B, the top side 3U is folded back at the lines R _N , R _M , and R _O to form a storage chamber capable of storing an item S in the center surrounded by five surfaces, the top side 3U, the left side 3L, the right side 3R, the rear side 3B, and the bottom side 3D. This storage chamber has an opening 2 facing forward, and the item S can be put in and taken out of the storage chamber through this opening 2.

この開口部２は、本実施形態の場合、上下方向の寸法（厚み）が７０ｍｍ、最大では１００ｍｍの寸法まで広げられるようになっている。ここで、上述した第１実施形態の配送体１は、一般的な小荷物輸送のパッケージに比べて、厚みがある収納物Ｓを輸送できることを特徴としている。例えば、従来のボール紙や薄手のダンボール紙を用いたパッケージの場合、緩衝性が不十分で、また強度的にも最大でも５０ｍｍ程度の収納物Ｓまでしか収納することはできない。これは、従来の配送体の場合は、厚手のダンボール紙を用いると、柔軟性に乏しく、構造上製函することが困難になることに由来する。 In this embodiment, this opening 2 has a vertical dimension (thickness) of 70 mm, and can be expanded to a maximum of 100 mm. The delivery body 1 of the first embodiment described above is characterized by its ability to transport thicker items S compared to typical packages for transporting small parcels. For example, conventional packages using cardboard or thin corrugated cardboard have insufficient cushioning and are strong enough to only accommodate items S up to about 50 mm thick. This is because conventional delivery bodies using thick corrugated cardboard have poor flexibility and are structurally difficult to box.

しかし、本発明の配送体１は、上述したようなくの字状に折り曲げ可能な構造を採用しているため、上下方向に変形しやすく、厚手のダンボール紙を用いても製函が十分に行えるものとなっている。そのため、本発明の配送体１は、最大で７０ｍｍ～１５０ｍｍ程度の収納物Ｓまで収納でき、従来のパッケージでは運搬できなかった厚手の収納物Ｓでも取り扱い可能となっている。 However, because the delivery body 1 of the present invention employs a structure that allows it to be folded into an L-shape as described above, it is easily deformed in the vertical direction, and even thick cardboard can be used to make a box. As a result, the delivery body 1 of the present invention can store items S up to a maximum of about 70 mm to 150 mm in size, making it possible to handle thick items S that could not be transported in conventional packaging.

折返フラップ４は、上述した配送体本体３の底面３Ｄに対して、罫線Ｒ _Ａ（組立状態における底面３Ｄの前縁）を境に前後方向に折り曲げ自在に連結された部材であり、後方に
向かって折り返した場合に上述した開口部２を閉鎖可能となっている。
具体的には、折返フラップ４は、折り返された状態において開口部２を閉鎖可能な基端フラップ４１と、配送体本体３の上面に面状態で接触可能な先端フラップ４２と、先端フラップ４２の左縁に折り曲げ自在に設けられた左サイドフラップ８と、先端フラップ４２の右縁に折り曲げ自在に設けられた右サイドフラップ９と、を有している。 The fold-back flap 4 is a member that is connected to the bottom surface 3D of the above-mentioned delivery body 3 at the boundary line R _A (the front edge of the bottom surface 3D in the assembled state) so as to be freely folded in the front-rear direction, and when folded back toward the rear, it is possible to close the above-mentioned opening 2.
Specifically, the fold-back flap 4 has a base end flap 41 that can close the opening 2 when folded back, a tip flap 42 that can come into surface contact with the upper surface of the delivery body main body 3, a left side flap 8 that is freely foldable on the left edge of the tip flap 42, and a right side flap 9 that is freely foldable on the right edge of the tip flap 42.

基端フラップ４１は、前後方向に比べて左右方向に長い六角形状の部材であり、上述した開口部２を閉鎖可能な面積を有している。基端フラップ４１の前後方向の中央側（図２の展開状態における前側）の中央には、左右方向に沿って罫線Ｒ _Ｒ（図２においてＲ_Ｒで示す点線）が形成されており、この罫線Ｒ _Ｒを境に折り返すことで、基端フラップ４１は、左側面３Ｌ、右側面３Ｒ、及び後面３Ｂと同様に配送体１の外側に向かって突出するくの字状に断面を形成可能となっている。 The base end flap 41 is a hexagonal member that is longer in the left-right direction than in the front-rear direction, and has an area that can close the above-mentioned opening 2. A line R _R (dotted line indicated by R R in FIG. 2) is formed along the left-right direction at the center of the center side in the front-rear direction of the base end flap 41 (the front side in the unfolded state in FIG. 2), and by folding _back the line R _R as a boundary, the base end flap 41 can form a dogleg-shaped cross section that protrudes toward the outside of the delivery body 1, similar to the left side surface 3L, right side surface 3R, and rear surface 3B.

つまり、本実施形態の配送体１は、配送体本体３を取り囲む左側面３Ｌ、右側面３Ｒ、後面３Ｂ、及び折返フラップ４が、箱状に組み立てられた場合に、いずれも上下方向の中途側が箱の外側に向かって突出するように折れ曲がる構造を備えている。このような構造を採用することで、配送体１は上下方向に変形が容易となり、従来のパッケージでは運搬できなかった最大で７０ｍｍ～１５０ｍｍ程度の収納物Ｓまで収納できるようになる。 In other words, the delivery body 1 of this embodiment has a structure in which the left side surface 3L, right side surface 3R, rear surface 3B, and fold-back flap 4 surrounding the delivery body main body 3 all bend so that the middle part in the vertical direction protrudes toward the outside of the box when assembled into a box shape. By adopting such a structure, the delivery body 1 can easily deform in the vertical direction, and can store items S up to a maximum of about 70 mm to 150 mm in size that could not be transported with conventional packaging.

また、基端フラップ４１と先端フラップ４２との間には、左右方向に沿って伸びる、言い換えれば罫線Ｒ _Ｒとほぼ平行に伸びる罫線Ｒ _Ｓ（図２においてＲ_Ｓで示す点線）が形成されており、後方に折り返された基端フラップ４１に対して先端フラップ４２を上面３Ｕに面状態で接触するように折り返すことを可能としている。
先端フラップ４２は、配送体本体３の上面３Ｕに面状態で接触し、先端側をテープや接着剤などを用いて接着することで、折返フラップ４を封緘状態に保持するために用いられる。先端フラップ４２の基端側には、開封時に折返フラップ４を分離して開口部２を開口するための切り取り線１０が形成されている。この切り取り線１０の中途側には、切り取り線１０に沿った切り取りの起点となる切り取りタブ１１が形成されており、指などで切り取りタブ１１を引き起こしつつ切り取り線１０に沿って折返フラップ４を分割することを可能としている。 In addition, a line R _S (a dotted line indicated by R _S in FIG. 2 ) is formed between the base end flap 41 and the tip end flap 42, which extends in the left-right direction, in other words, extends substantially parallel to the line R _R. This makes it possible to fold the tip end flap 42 back so as to come into surface contact with the upper surface 3U relative to the base end flap 41 that has been folded back rearward.
The tip flap 42 is used to keep the fold-back flap 4 sealed by contacting the upper surface 3U of the delivery body 3 in a face-to-face state and adhering the tip side with tape, adhesive, or the like. A cut line 10 is formed on the base end side of the tip flap 42 for separating the fold-back flap 4 and opening the opening 2 when opening. A cut tab 11 is formed halfway through this cut line 10, which serves as a starting point for cutting along the cut line 10, and makes it possible to divide the fold-back flap 4 along the cut line 10 while pulling up the cut tab 11 with a finger or the like.

ところで、上述した開口部２を基端フラップ４１（折返フラップ４）で閉鎖する場合、この開口部２は前方正面から見た場合に横長の六角形状に開口し、さらに左右の両端が前方にせり出すような構造となるため、基端フラップ４１と開口部２との間に隙間ができやすく、良好な封緘性を確立することが難しくなる。そこで、本発明の配送体１では、左右側面に、基端フラップ４１（折返フラップ４）の裏面に面状態で接触する補助フラップ７を設けて、開口部２の封緘性を向上させるようにしている。 However, when the opening 2 is closed with the base end flap 41 (folded flap 4), the opening 2 opens in a horizontally long hexagonal shape when viewed from the front, and both left and right ends protrude forward, which makes it easy for gaps to form between the base end flap 41 and the opening 2, making it difficult to achieve good sealing. Therefore, in the delivery body 1 of the present invention, auxiliary flaps 7 are provided on the left and right sides that come into surface contact with the back surface of the base end flap 41 (folded flap 4) to improve the sealing of the opening 2.

例えば、基端フラップ４１の左端側と左側面３Ｌとの封緘を例にあげれば、箱状に組み上げる場合、基端フラップ４１の下半分（罫線Ｒ _Ｒより下側（底面３Ｄ側）の部分）と左側面３Ｌの下半分（罫線Ｒ _Ｇより下側（底面３Ｄ側）の部分）とは、辺Ｆ_Ａ（辺Ａ）を介して互いに連結された状態で隣り合い、そのままでは分離することはない。しかし、基端フラップ４１の上半分（罫線Ｒ _Ｒより上側の部分）と左側面３Ｌの上半分（罫線Ｒ _Ｇより上側の部分）とは、罫線Ｒ _Ｇを境に折り返された辺Ｆ_Ｂ（辺Ｂ）と、罫線Ｒ _Ｒを境に折り返された辺Ｆ_Ｃ（辺Ｃ）とを突き合わせただけであるため、連結されておらず隙間が生じやすい。そこで、本発明の配送体１では、上述した補助フラップ７を設けて、開口部２の封緘性を向上させている。 For example, in the case of sealing the left end side of the base flap 41 and the left side surface 3L, when assembled into a box shape, the lower half of the base flap 41 (the part below the crease R _R (bottom surface 3D side)) and the lower half of the left side surface 3L (the part below the crease R _G (bottom surface 3D side)) are adjacent to each other in a state of being connected to each other via the side F _A (side A), and will not be separated as it is. However, the upper half of the base flap 41 (the part above the crease R _R ) and the upper half of the left side surface 3L (the part above the crease R _G ) are simply butted against each other by the side F _B (side B) folded back at the crease R _G and the side F _C (side C) folded back at the crease R _R , and therefore are not connected and gaps are likely to occur. Therefore, in the delivery body 1 of the present invention, the above-mentioned auxiliary flap 7 is provided to improve the sealing property of the opening 2.

上述した補助フラップ７は、不等辺の四角形状（四辺の長さがすべて異なる四角形）の部材であり、辺Ｆ_Ｃを一辺とする三角形Ｔ（基端フラップ４１の下半分の左端または右端
）の半分程度の面積に形成されている。補助フラップ７と、上述した左側面３Ｌ及び右側面３Ｒとの間には、補助フラップ７を左右方向の内側（配送体本体３の内部側）に折り返し可能とする折返線Ｆ_Ｄが形成されている。 The auxiliary flap 7 described above is a rectangular member with unequal sides (a rectangle with all four sides of different lengths) and is formed with an area of about half the triangle T (the left or right end of the lower half of the base end flap 41) with side F _C as one side. Between the auxiliary flap 7 and the left side surface 3L and the right side surface 3R described above, a fold line F _D is formed that allows the auxiliary flap 7 to be folded inward in the left-right direction (toward the inside of the delivery body 3).

つまり、上述した手順で配送体１を組み上げた後、開口部２を折返フラップ４で閉鎖するために、左右側部及び折返フラップ４を折り返すと、補助フラップ７が折り返された基端フラップ４１（折返フラップ４）の裏面に重なり合い、補助フラップ７が裏面に対して面状態で接触するようになるため、開口部２の封緘性をより向上することが可能となる。
図５に明確に示されるように、上述した先端フラップ４２（折返フラップ４）の左側には、左サイドフラップ８が罫線Ｒ _Ｂを境に先端フラップ４２に対して折り曲げ自在に連結されている。また、先端フラップ４２の右側には、右サイドフラップ９が罫線Ｒ _Ｃを境に先端フラップ４２に対して折り曲げ自在に連結されている。 In other words, after assembling the delivery body 1 in the above-described manner, when the left and right side portions and the fold-back flap 4 are folded back to close the opening 2 with the fold-back flap 4, the auxiliary flap 7 overlaps with the back surface of the folded-back base end flap 41 (fold-back flap 4), and the auxiliary flap 7 comes into surface contact with the back surface, thereby further improving the sealing ability of the opening 2.
5, on the left side of the tip flap 42 (fold-back flap 4), the left side flap 8 is connected to the tip flap 42 at the boundary line R _B so as to be freely folded. Also, on the right side of the tip flap 42, the right side flap 9 is connected to the tip flap 42 at the boundary line R _C so as to be freely folded.

図６に示すように、これらの左右のサイドフラップ８、９は折返フラップ４に連結されているため、折返フラップ４を折り返して開口部２を閉鎖した場合には、左右のサイドフラップ８、９も折返フラップ４と一体に折り返される。そして、折り返した折返フラップ４を配送体本体３の上面３Ｕに面状態で接触させると、左サイドフラップ８により配送体本体３の左側面３Ｌを上方より押さえ込むことができ、右サイドフラップ９により配送体本体３の右側面３Ｒを上方より押さえ込むことができるようになる。 As shown in FIG. 6, these left and right side flaps 8, 9 are connected to the fold-back flap 4, so when the fold-back flap 4 is folded back to close the opening 2, the left and right side flaps 8, 9 are also folded back together with the fold-back flap 4. When the folded-back flap 4 is brought into face-to-face contact with the upper surface 3U of the delivery body 3, the left side flap 8 can press down the left side surface 3L of the delivery body 3 from above, and the right side flap 9 can press down the right side surface 3R of the delivery body 3 from above.

つまり、左サイドフラップ８は、先端フラップ４２の左縁に対して左方に折り曲げられる（罫線Ｒ _Ｂを境に内折りされる）ことで、左側面３Ｌの表面に面状態で接触可能とされており、また右サイドフラップ９は、先端フラップ４２の右縁に対して右方に折り曲げられる（罫線Ｒ _Ｃを境に内折りされる）ことで、右側面３Ｒの表面に面状態で接触可能とされている。このような構成を採用すれば、左右側面３Ｌ、３Ｒが傾斜した配送体本体３に対して折返フラップ４を隙間なく重ね合わすことができ、開口部２の封緘性を更に向上させることが可能となる。 That is, the left side flap 8 is folded leftward relative to the left edge of the leading flap 42 (inwardly folded along the line R _B ) so that it can come into contact with the surface of the left side surface 3L in a flush state, and the right side flap 9 is folded rightward relative to the right edge of the leading flap 42 (inwardly folded along the line R _C ) so that it can come into contact with the surface of the right side surface 3R in a flush state. By adopting such a configuration, the folded flap 4 can be overlapped without any gaps with the delivery body 3 whose left and right side surfaces 3L and 3R are inclined, and the sealing ability of the opening 2 can be further improved.

上述した基端フラップ４１と左サイドフラップ８との間には、両部材を接続する左接続片１２が設けられている。また、基端フラップ４１と右サイドフラップ９との間にも、両部材を接続する右接続片１３が設けられている。図２の展開図に明確に示されるように、これらの接続片１２、１３は、いずれも三角形状に形成されており、補助フラップ７が設けられた近傍の左側面３Ｌや右側面３Ｒに対して隙間なく重ね合わすことができるようになっている。この「補助フラップ７が設けられた近傍の左側面３Ｌ」とは、図２において罫線Ｒ _Ｇより左側の位置する左側面３Ｌのうち、最も下端に位置する三角形の部分を意味し、また「補助フラップ７が設けられた近傍の右側面３Ｒ」とは、図２において罫線Ｒ _Ｋより右側の位置する右側面３Ｒのうち、最も下端に位置する三角形の部分を意味する。 Between the base end flap 41 and the left side flap 8, a left connecting piece 12 is provided to connect the two members. Also, between the base end flap 41 and the right side flap 9, a right connecting piece 13 is provided to connect the two members. As clearly shown in the development view of Fig. 2, these connecting pieces 12, 13 are each formed in a triangular shape so that they can be overlapped without any gaps with the left side surface 3L and the right side surface 3R in the vicinity of where the auxiliary flap 7 is provided. This "left side surface 3L in the vicinity of where the auxiliary flap 7 is provided" means the triangular portion located at the lowest end of the left side surface 3L located to the left of the line R _G in Fig. 2, and "right side surface 3R in the vicinity of where the auxiliary flap 7 is provided" means the triangular portion located at the lowest end of the right side surface 3R located to the right of the line R _K in Fig. 2.

つまり、上述した左接続片１２と左サイドフラップ８との２部材を設ければ、開口部２から左側面３Ｌにかけての広い範囲を確実に封緘できるようになる。また、右接続片１３と右サイドフラップ９との２部材を設ければ、開口部２から右側面３Ｒにかけての広い範囲を確実に封緘できるようになり、開口部２の封緘性をさらに向上させることが可能となる。 In other words, by providing the two components of the left connecting piece 12 and the left side flap 8 described above, it becomes possible to reliably seal a wide area from the opening 2 to the left side 3L. Also, by providing the two components of the right connecting piece 13 and the right side flap 9, it becomes possible to reliably seal a wide area from the opening 2 to the right side 3R, making it possible to further improve the sealing of the opening 2.

なお、上述した配送体１は、従来用いられてきたものより薄手の紙材を用いて形成することができる。例えば、両面段ボールシートであって、表裏ライナー及び中芯にそれぞれ坪量50～120ｇ/ｍ^２の原紙が用いられ、両面段ボールシートがＡフルート、Ｂフルート、またはＣフルートのいずれか一つであるものなどを用いることもできる。このような紙材を用いることで、軽量で、製造コストを押さえたものでありながら、充分な緩衝性を有しつつ、良好な封緘性と強度を備えた配送体１を得ることが可能となる。強度面では、表ラ
イナーの坪量が、１００ｇ/ｍ^２以上の坪量であるとより好ましい。
［第２実施形態］
次に、第２実施形態の配送体１について説明する。 The delivery body 1 described above can be formed using a thinner paper material than that used conventionally. For example, a double-sided corrugated cardboard sheet can be used in which the front and back liners and the core are made of base paper with a basis weight of 50 to 120 g/ ^m2 , and the double-sided corrugated cardboard sheet is one of A-flute, B-flute, or C-flute. By using such a paper material, it is possible to obtain a delivery body 1 that is lightweight and has a low manufacturing cost, yet has sufficient cushioning properties, good sealing properties, and strength. In terms of strength, it is more preferable that the basis weight of the front liner is 100 g/m2 or ^more .
[Second embodiment]
Next, a delivery body 1 according to a second embodiment will be described.

図７に示すように、第２実施形態の配送体１は、内部に収納される収納物Ｓが薄手のものである場合に、左右側面３Ｌ、３Ｒに左右方向の幅がより狭いものを採用している。
すなわち、第２実施形態の配送体１は、左右側面３Ｌ、３Ｒの寸法に比して、相対的に上面３Ｕとの接触面積を減らすことができるようになるため、その分だけ段ボールなどの材料を削減でき、材料コスト面でも更に向上させることが可能となる。 As shown in FIG. 7, in the delivery body 1 of the second embodiment, when the storage item S to be stored inside is thin, the left and right sides 3L, 3R have a narrower width in the left-right direction.
In other words, the delivery body 1 of the second embodiment can reduce the contact area with the upper surface 3U relatively compared to the dimensions of the left and right side surfaces 3L, 3R, so that materials such as cardboard can be reduced accordingly, making it possible to further improve material costs.

なお、今回開示された実施形態はすべての点で例示であって制限的なものではないと考えられるべきである。特に、今回開示された実施形態において、明示的に開示されていない事項、例えば、運転条件や操業条件、各種パラメータ、構成物の寸法、重量、体積などは、当業者が通常実施する範囲を逸脱するものではなく、通常の当業者であれば、容易に想定することが可能な値を採用している。 The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. In particular, matters not expressly disclosed in the embodiments disclosed herein, such as operating conditions, operating conditions, various parameters, dimensions, weights, volumes of components, etc., do not deviate from the scope of what a person skilled in the art would normally do, and values that a person skilled in the art would easily imagine are used.

１配送体
２開口部
３配送体本体
３Ｕ上面
３Ｄ底面
３Ｌ左側面
３Ｒ右側面
３Ｂ後面
４折返フラップ
４１基端フラップ
４２先端フラップ
７補助フラップ
８左サイドフラップ
９右サイドフラップ
１０切り取り線
１１切り取りタブ
１２左接続片
１３右接続片
Ｒ_Ａ罫線Ａ
Ｒ_Ｂ罫線Ｂ
Ｒ_Ｃ罫線Ｃ
Ｒ_Ｄ罫線Ｄ
Ｒ_Ｅ罫線Ｅ
Ｒ_Ｆ罫線Ｆ
Ｒ_Ｇ罫線Ｇ
Ｒ_Ｉ罫線Ｉ
Ｒ_Ｊ罫線Ｊ
Ｒ_Ｋ罫線Ｋ
Ｒ_Ｍ罫線Ｍ
Ｒ_Ｎ罫線Ｎ
Ｒ_Ｏ罫線Ｏ
Ｒ_Ｐ罫線Ｐ
Ｒ_Ｑ罫線Ｑ
Ｒ_Ｒ罫線Ｒ
Ｒ_Ｓ罫線Ｓ
Ｆ_Ａ辺Ａ
Ｆ_Ｂ辺Ｂ
Ｆ_Ｃ辺Ｃ
Ｆ_Ｄ折返線Ｄ
Ｓ収納物 1 Delivery body 2 Opening 3 Delivery body body 3U Top surface 3D Bottom surface 3L Left side surface 3R Right side surface 3B Rear surface 4 Fold-back flap 41 Base end flap 42 Tip flap 7 Auxiliary flap 8 Left side flap 9 Right side flap 10 Cut line 11 Cut-off tab 12 Left connecting piece 13 Right connecting piece R _A line A
R _B Ruled line B
R _C line C
R _D Ruled Line D
R _E Ruled line E
R _F Ruled line F
R _G Ruled line G
R _I Line I
R _J Ruled Line J
R _K Ruled Line K
R _M Ruled Line M
R _N Ruled Line N
R _O Ruled line O
R _P Ruled line P
R _Q Ruled line Q
R _R Ruled line R
R _S Ruled line S
F _A side A
F _B side B
F _C side C
F _D Turn-around line D
S Storage items

Claims

The delivery body has an opening for inserting and removing items facing forward, and a fold-back flap for closing the opening.
The delivery body is a cardboard delivery body that can be transformed into a state where it is folded into a flat bag shape and a state where it is assembled into a box shape having a top surface, a bottom surface, a rear surface, a left side surface, and a right side surface,
In the assembled state,
The bottom surface is formed in a rectangular shape surrounded by a front edge line R _A extending in the left-right direction, a left edge line R _B extending in the front-rear direction, a right edge line R _C extending in the front-rear direction, and a rear edge line R _D extending in the left-right direction,
the left side surface is connected to the left side of the bottom surface at the line R- _B so as to be freely folded, and is bent such that a middle portion in the up-down direction protrudes leftward at a line R- _G that crosses the left side surface in the front-rear direction,
the right side surface is connected to the right side of the bottom surface at the line R _C so as to be freely folded, and is bent at a line R _K that crosses the right side surface in the front-rear direction so that a middle portion in the up-down direction protrudes to the right,
the rear surface is connected to the rear side of the bottom surface at the boundary of the line R _D so as to be freely folded back, and has a structure in which a middle portion in the up-down direction is bent so as to protrude rearward at a boundary of a line R _P that crosses the rear surface in the left-right direction,
the top surface is formed in a rectangular shape surrounded by a side extending in the left-right direction along an upper end of the opening, the ruled line R _B continuing from the bottom surface, passing through the rear surface, and extending to an upper end of the opening in the top surface, the ruled line R _C continuing from the bottom surface, passing through the rear surface, and extending to an upper end of the opening in the top surface, and a ruled line R _M extending in the left-right direction at the upper end of the rear surface,
The fold-back flap includes a base end flap capable of closing the opening when folded back, a tip end flap capable of contacting the upper surface in a surface state, a left side flap provided on a left edge of the tip end flap so as to be freely folded, and a right side flap provided on a right edge of the tip end flap so as to be freely folded,
The base end flap has a lower portion that is connected to the bottom surface of the delivery body so as to be freely folded back at the line R _A , and an upper portion that is folded back backward at the line R _R that crosses the base end flap in the left-right direction, and has a structure in which the middle portion in the up-down direction is bent so as to protrude forward,
the tip flap is folded back with respect to an upper portion of the base flap at a boundary of a crease _RS extending in the left-right direction above the crease _RA , and is superimposed on a front surface of the upper surface,
The crease R _B and the crease R _C extend from the bottom surface to the base end flap so as to intersect with the crease R _A , cross the base end flap in the up-down direction so as to intersect with the crease R _R , and extend from the base end flap to the tip end flap so as to intersect with the crease R _S ,
a left side of the crease R _B of the base end flap is folded back at the crease R _B , so that the left side of the crease R _B of the base end flap protrudes forward from a front surface between the crease R B and the crease R _C of the base end flap;
A right side of the crease R _C in the base end flap is folded back at the crease R _C , so that the right side of the crease R C in the base end flap protrudes forward from a front surface between the crease R _B and the crease R _C in the base end flap,
a left side portion of the rear surface from the crease R _B is folded back at the crease R _B , and thereby protrudes rearward from a portion of the rear surface between the crease R _B and the crease R _C ,
a right side portion of the rear surface from the crease R _C is folded back at the crease R _C , and thereby protrudes rearward from a rear surface between the crease R _B and the crease R _C on the rear surface,
The left end side of the base end flap from the crease R- _B and the front end side of the left side surface from the crease R- _A are connected by being freely folded back at a crease R- _F that extends from an intersection of the crease R- _B and the crease R _-A toward the upper left front,
The right end side of the base end flap from the crease R _C and the front end side of the right side surface from the crease R _A are freely folded and connected at a crease R _J that extends from an intersection of the crease R _C and the crease R _A toward the upper right front,
the left side flap is overlapped on the upper side of the left side surface located above the line R- _G , and the left end of the left side flap is located midway in the up-down direction between the line R- _G and the line R- _B located above the line R _-G ,
the right side flap is overlapped on the upper side of the right side surface located above the line R _K , and a right end of the right side flap is located midway in the up-down direction between the line R _K and the line R _C located above the line R _K ,
a front edge F _B of the left side surface located above the crease R _G is positioned to abut against a left edge F _C of the upper portion of the base end flap folded backward at the crease R _R when the left side surface is folded back at the crease R _G ;
a front edge of the right side surface located above the crease R _K is positioned to abut against a right edge of the upper portion of the base end flap folded backward at the crease R _R when the right side surface is folded back at the crease R _K ,
a left line _RQ is formed on the top surface, extending from the rear left corner of the top surface toward the center of the top surface; the left line _RQ , an inclined hypotenuse formed on the rear side of the left side surface located above the line _RG , and a line _RN formed on the left side of the rear surface located forward of the line _RP are positioned on the same line in the folded state;
a right line _RQ is formed on the upper surface, extending from the right rear corner of the upper surface toward the center of the upper surface; the right line _RQ , an inclined oblique side formed on the rear side of the right side surface located above the line _RK , and a line _RO formed on the right side of the rear surface located forward of the line _RP are positioned on the same line in the folded state;
An auxiliary flap is provided on the front edge of the left side surface and the front edge of the right side surface, which improves the sealing property of the opening by contacting the back surface of the upper part of the base end flap in a face-to-face state in the assembled state,
The auxiliary flap on the left side is
The left side surface is folded back at a fold line F _D , which is located at the same position as the front side F _B of the left side surface located above the ruled line R _G.
the rear surface of the base end flap is formed to be contactable with the base end flap in a surface state above the line R _R and to the left of the line R _B ,
The auxiliary flap on the right side is
The sheet can be folded back at a folding line provided at the same position as the front edge of the right side surface located above the line R _K ,
The base end flap is formed so as to be contactable in a surface state above the line R _R and to the right of the line R _C on the back surface of the base end flap,
a left connection piece is provided between the base end flap and the left side flap, the left connection piece being capable of being in surface contact with an upper surface of the left side surface located above the line R _G ;
a right connecting piece is provided between the base end flap and the right side flap, the right connecting piece being capable of contacting in a surface state with an upper surface of the right side surface located above the line R _K ;
the left connecting piece is formed in a triangular shape surrounded by the crease R _S formed between the left side flap, the left side F _C of the base end flap located above the crease R _R , and an extension line of the side formed at the left end of the left side flap,
the right connecting piece is formed in a triangular shape surrounded by the line _RS formed between the right side flap, the right side edge of the base end flap located above the line _RS , and an extension of the edge formed at the right end of the right side flap.

The delivery body according to claim 1 , wherein in the assembled state, the tip flap has a cut line formed thereon for separating the fold-back flap to open the opening when unsealed.

The left side surface located above the ruled line R _G is
The upper surface is folded along a line R _B formed on the left edge of the upper surface,
The left side surface is folded downward regardless of whether or not there is a line on the left side surface itself,
The right side surface located above the ruled line R _K is
The sheet is folded along a line R _C formed on the right edge of the upper surface,
The delivery body according to claim 1 , wherein the right side surface itself is folded downward regardless of the presence or absence of a line.

The delivery body according to any one of claims 1 to 3, wherein the auxiliary flap does not have a line crossing its surface.

The delivery body is made of a double-sided corrugated cardboard sheet,
The front and back liners and the core of the double-sided cardboard sheet are made of base paper having a basis weight of 50 to 120 g/ ^m2 ,
The delivery body according to any one of claims 1 to 4, characterized in that the double-sided corrugated cardboard sheet is any one of A flute, B flute, and C flute.