JP2006213386A

JP2006213386A - Delivery box

Info

Publication number: JP2006213386A
Application number: JP2005030204A
Authority: JP
Inventors: Tetsuyoshi Ishii; 哲秀石井; Kazuyuki Sakurada; 和之櫻田; Toshimasa Hirama; 敏正平間
Original assignee: KATO SHIKI SEISAKUSHO KK; Nippon Express Co Ltd
Current assignee: KATO SHIKI SEISAKUSHO KK; Nippon Express Co Ltd
Priority date: 2005-02-07
Filing date: 2005-02-07
Publication date: 2006-08-17

Abstract

PROBLEM TO BE SOLVED: To provide a delivery box which is easily and speedily assembly by folding, realizes low cost by effectively using a sheet material, and prevents water leakage. SOLUTION: This assembly blank sheet B1 can be bent and assembled into the rectangular parallelepiped delivery box A1 having double-walled faces by the processes as described blow. A first front and rear side panel sections 11, 12 are folded, then a first right and left side panel sections 13, 14 are raised through connecting panel parts 15-18 in association with folding the former panels, and thus a bag shaped outer box body C1 with a cover panel part 22 and an interior panel member 20 in an open condition is folded through one touch operation. The open interior panel member is folded along a folding line toward the inside of the outer box body to fall therein, and then a second front and rear side panel sections 30, 32, a second right and left side panel sections 33, 34 and a second bottom panel part 31 are folded and overlapped in association with each other to form an inner box C1 in the outer box body. Respective faces of the rectangular parallelepiped have a folding pattern where when the cover panel part is closed, the delivery box having a multi-wall structure is assembled. COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、宅配便などで、保冷又は保温の必要な食品や製品等の配送品を保冷又は保温状態を保持しながら輸送するのに好適な折り畳み式の配送用箱に関する。 The present invention relates to a foldable delivery box suitable for transporting a delivery product such as a food or product that needs to be kept cold or warm, while keeping the cold or warm state, by a home delivery service or the like.

従来、この種の配送用箱の中には、素材として、使用後の廃棄処理上の問題がなく再生可能で、軽量であることから段ボールを使用し、しかも、不使用時に余計に保管スペースが必要にならないように、折り畳み可能に組み立てる構成にしたものがある。この折り畳み式配送用箱の中にも、食品や製品等の配送品を保冷又は保温状態を保持しながら輸送できるように、別個の段ボール製ブランクシートから、それぞれ外装箱と内装箱を折り上げ、外装箱内に内装箱を嵌め込んで二重箱構造にした配送用箱がある（特許文献１参照）。一方、１枚の段ボール製ブランクシートから、直方体の各面が二重壁構造をなす箱体に折り上がるようにした構成の配送用箱もある（特許文献２参照）。
特開２０００−３４４２２７号公報特開平１０−１１４３２８号公報 Conventionally, in this type of shipping box, the cardboard is used because it is recyclable as a material without any disposal problems after use and is lightweight, and there is extra storage space when not in use. There is a structure that can be folded so that it is not necessary. In this foldable delivery box, the outer and inner boxes are folded up from separate cardboard blank sheets so that delivery items such as food and products can be transported while being kept cold or warm. There is a delivery box in which an inner box is fitted into an outer box to form a double box structure (see Patent Document 1). On the other hand, there is also a delivery box having a configuration in which each side of a rectangular parallelepiped is folded up into a box having a double wall structure from a single cardboard blank sheet (see Patent Document 2).
JP 2000-344227 A JP-A-10-114328

ところで、一般に、段ボール箱を製造する場合は、組み立てに先立ち、予めロール状に巻いた所定幅の段ボール原紙を引き出し、これを製造装置で必要な形状に切断加工して１枚の組立用ブランクシートを作製している。 By the way, in general, when a cardboard box is manufactured, prior to assembly, a cardboard base paper having a predetermined width, which has been wound in advance in a roll shape, is drawn out and cut into a required shape by a manufacturing apparatus to produce a single blank sheet for assembly. Is making.

ところが、上述した従来の二重箱構造の配送用箱では、外装箱と内装箱用に別個の段ボール製ブランクシートが必要であるため、それだけ原紙の使用量が多く、しかも、使用しないで不用に残る部分も多くなって原紙を無駄に使用することになり、その分だけ材料コストが高くなり不経済であるという課題があった。一方で、使用時には、外装箱と内装箱を個別に組み立てる必要があり、それだけ組立作業に時間と手間を要するという課題もあった。 However, the conventional double box structure delivery box described above requires separate cardboard blank sheets for the outer box and the inner box, so that the amount of base paper used is large, and it remains unnecessarily unused. There was a problem that the portion was increased and the base paper was wasted, and the material cost increased accordingly, which was uneconomical. On the other hand, at the time of use, it is necessary to assemble the exterior box and the interior box individually, and there is a problem that time and labor are required for the assembly work.

他方、従来の二重壁構造の配送用箱では、折り上げると全体が二重壁になるように、組立ブランクシートが紙幅方向に複雑な凹凸形状となり、同様に、それだけ使用しないで不用に残る部分も多くなって原紙を無駄に使用することになり、やはり材料コストが高く不経済であるという課題があった。しかも、多くの折り曲げ手順を伴った複雑な折り曲げ形態であるために、不慣れな作業者にとって簡単には組み立てられず、同様に、それだけ組立作業に時間と手間を要するという課題もあった。 On the other hand, in the conventional double-walled delivery box, the assembled blank sheet has a complicated uneven shape in the paper width direction so that when folded up, the whole becomes a double wall, and similarly, it remains unnecessarily unused. There was a problem that the number of parts increased and the base paper was wasted, and the material cost was high and uneconomical. Moreover, since it is a complicated folding form with many folding procedures, it is not easy to assemble for an unskilled worker, and similarly, there is a problem that time and labor are required for the assembling work.

さらに、上述した従来の配送用箱では、いずれも、少なくとも箱体の底側に板片の継ぎ目を有し、たとえ素材が防水性段ボールであっても、継ぎ目の隙間から簡単に水漏れを起こし易い構造であるため、例えば生鮮魚介類等の水分を多く含んだ配送品の輸送には不向きであるという課題があった。 Furthermore, all of the above-mentioned conventional delivery boxes have a plate seam at least on the bottom side of the box, and even if the material is waterproof corrugated cardboard, water leaks easily from the gap of the seam. Since the structure is easy, there is a problem that it is not suitable for transporting a delivery product containing a large amount of water such as fresh seafood.

そこで、本発明の目的は、簡単且つ迅速に折り曲げて組み立てられ、シート原材を効率よく使用して低コスト化を実現し、水漏れの発生をも防止する配送用箱を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a delivery box that is easily and quickly folded and assembled, realizes cost reduction by using sheet raw materials efficiently, and prevents water leakage. .

そのため、上記目的を達成すべく、請求項１に記載の発明は、たとえば以下に図面を用いて説明する実施の形態に示すとおり、所定幅のシート原材Ｓを切断加工した１枚の組立用ブランクシートＢ１から、直方体の各面が多重壁構造をなす箱形に折り上がるようにした配送用箱Ａ１であって、前記組立用ブランクシートＢ１において、外箱体Ｃ１の矩形な第１底板部１０の四辺に、前後左右の各第１側板部１１〜１４を山折り用の折り目ａを介して連設し、隣り合う前後左右の第１側板部間１１〜１４には、前記第１底板部１０の各隅角から外向きに伸びる谷折り用の斜め折り目ｃを設けた連結板部１５〜１８を、それぞれ山折り用の折り目ｂを介して連設し、前記外箱体Ｃ１の前記第１後側板部１２の上縁には、蓋板部２２を山折り用の折り目ｄを介して連設する一方、前記第１前側板部１１の上縁には、内箱体Ｃ２を形成する内装板材２０を、コ形に折曲げ用の平行折り目ｅを介して連設し、前記蓋板部２２は、その左右側端に補強フラップ２２ａ・２２ａを形成し、両補強フラップを蓋面２２ｂに折り重ねて予め貼着した二重蓋構造とし、前記内装板材２０は、前記平行折り目ｅを介して折り込み前記第１前側板部１１に重ね合わす第２前側板部３０と、その第２前側板部３０の上縁に谷折り用の折り目ｇを介して連設し、前記第１底板部１０に折り重ねる第２底板部３１と、その第２底板部３１の上縁に谷折り用の折り目ｈを介して連設し、前記第１後側板部１２に折り重ねる第２後側板部３２と、その第２後側板部の左右側縁に谷折り用の折り目ｊを介して連設し、前記外箱体Ｃ１における前記第１の左右側板部１３・１４にそれぞれ折り重ねる第２の左右側板部３３・３４とを備え、前記第２底板部３１は、その左右側端に補強フラップ３１ａ・３１ａを形成し、両補強フラップを折り重ねて予め貼着した二重底構造とし、前記連結板部１５〜１８のうち、前記谷折り用の斜め折り目ｃを境に、前記第１前側板部１１および第１後側板部１２と隣り合う側の板半分をそれぞれ貼代片１５ａ・１６ａ・１７ａ・１８ａとし、それら貼代片の内面を前記第１前側板部１１および第１後側板部１２に折り重ねて予め貼着してなり、組み立て時に、前記第１前側板部１１および第１後側板部１２を曲げ起こすと、隙間のない袋状器形に前記外箱体Ｃ１が折り上がる形態を備えてなることを特徴とする。 Therefore, in order to achieve the above object, the invention described in claim 1 is for assembling a single sheet obtained by cutting a sheet raw material S having a predetermined width, as shown in an embodiment described below with reference to the drawings. A delivery box A1 in which each side of a rectangular parallelepiped is folded from a blank sheet B1 into a box shape having a multi-wall structure, and in the assembly blank sheet B1, a rectangular first bottom plate portion of the outer box body C1 The first side plates 11 to 14 on the four sides are connected to each other through a fold a for mountain fold, and the first bottom plate is disposed between the adjacent first side plates 11 to 14 on the front, rear, left and right sides. Connecting plate portions 15 to 18 provided with diagonal folds c for valley folds extending outward from the respective corners of the portion 10 are connected to each other via folds b for mountain folds, and the outer box body C1 At the upper edge of the first rear plate portion 12, the lid plate portion 22 is folded for mountain folding. On the other hand, the interior plate member 20 forming the inner box body C2 is connected to the upper edge of the first front plate part 11 through the parallel crease e for folding in a U shape. The lid plate portion 22 has reinforcing flaps 22a and 22a formed on the left and right ends thereof, and has a double lid structure in which both reinforcing flaps are folded and pasted on the lid surface 22b in advance, and the interior plate member 20 is parallel to the parallel plate member 20. A second front plate portion 30 that is folded through a fold e and overlapped with the first front plate portion 11; and an upper edge of the second front plate portion 30 is connected via a fold g for valley folding; A second bottom plate portion 31 that is folded on the first bottom plate portion 10 and a second rear portion that is connected to the upper edge of the second bottom plate portion 31 via a fold h for valley folding and is folded on the first rear plate portion 12. The side plate part 32 and the left and right side edges of the second rear side plate part are connected via a fold j for valley folding, The left and right side plate portions 33 and 34 are respectively folded on the first left and right side plate portions 13 and 14 in the box body C1, and the second bottom plate portion 31 has reinforcing flaps 31a and 31a at the left and right side ends thereof. Forming a double bottom structure in which both reinforcing flaps are folded and adhered in advance, and the first front side plate portion 11 and the connecting plate portions 15 to 18 are bordered by the diagonal fold c for the valley fold. The plate halves on the side adjacent to the first rear side plate part 12 are made into pasting pieces 15a, 16a, 17a and 18a, respectively, and the inner surfaces of these pasting pieces are folded into the first front side plate part 11 and the first rear side plate part 12. When the first front side plate portion 11 and the first rear side plate portion 12 are bent at the time of assembly, the outer box body C1 is folded into a bag-like container shape without a gap. It is characterized by.

請求項２に記載の発明は、たとえば以下に図面を用いて説明する実施の形態に示すとおり、所定幅のシート原材Ｓを切断加工した１枚の組立用ブランクシートＢ２から、直方体の各面が二重壁構造をなす箱形に折り上がるようにした箱本体４０と、同じ前記シート原材Ｓの残余シート部分から、それぞれ切り出して作製する前記箱本体４０の内蓋４１および重ね底４２とからなる配送用箱Ａ２であって、前記組立ブランクシートＢ２において、前記箱本体４０に備える外箱体Ｃ１の矩形な第１底板部１０の四辺に、前後左右の各第１側板部１１〜１４を山折り用の折り目ａを介して連設し、隣り合う前後左右の前記第１側板部間１１〜１４には、前記第１底板部１０の各隅角から外向きに伸びる谷折り用の斜め折り目ｃを設けた連結板部１５〜１８を、それぞれ山折り用の折り目ｂを介して連設し、前記外箱体Ｃ１の第１後側板部１２の上縁には、蓋板部２２を山折り用の折り目ｄを介して連設する一方、第１前側板部１１の上縁には、内箱体Ｃ２´を形成する内装板材２０´を、コ形に折曲げ用の平行折り目ｅを介して連設し、前記蓋板部２２は、その左右側端に補強フラップ２２ａ・２２ａを形成し、両補強フラップを蓋面２２ｂに折り重ねて予め貼着した二重蓋構造とし、前記内装板材２０´は、前記平行折り目ｅを介して折り込み前記第１前側板部１１に重ね合わす第２前側板部３０と、その第２前側板部３０の上縁に谷折り用の折り目ｇを介して連設し、前記第１底板部１０に折り重ねる第２底板部３１と、その第２底板部３１の上縁に谷折り用の折り目ｈを介して連設し、前記第１後側板部１２に折り重ねる第２後側板部３２と、その第２後側板部３２の左右側縁に谷折り用の折り目ｊを介して連設し、前記外箱体Ｃ１における前記第１の左右側板部１３・１４にそれぞれ折り重ねる第２の左右側板部３３・３４とを備え、前記連結板部１５〜１８のうち、前記谷折り用の斜め折り目ｃを境に、前記第１前側板部１１および第１後側板部１２と隣り合う側の板半分をそれぞれ貼代片１５ａ・１６ａ・１７ａ・１８ａとし、それら貼代片の内面を前記第１前側板部１１および第１後側板部１２に折り重ねて予め貼着してなり、組み立て時に、前記第１前側板部１１および第１後側板部１２を曲げ起こすと、隙間のない袋状器形に前記外箱体Ｃ１が折り上がる形態を備えた構成にする一方、前記内蓋４１および前記重ね底４２は、前記シート原材Ｓにおける前記内装板材２０´の第２前側板部３０および第２底板部３１の左右両側に残る前記残余シート部分から、それぞれ切り出して作製し、前記内蓋４１は、前記箱本体４０の上部開口３９に合わせて矩形な蓋片部４１ａと、その蓋片部４１ａの一側側縁で折り曲げたシール用フラップ４１ｂを有し、組み立て時に、該シール用フラップ４１ｂを前記第２前側板部３０に重ねて前記箱本体４０に被せてなり、前記重ね底４２は、前記第１および第２底板部１０・３１の外形状に合わせて矩形に形成し、組み立て時に前記第１底板部１０又は第２底板部３１上に重ねて前記箱本体４０を三重底構造としてなることを特徴とする。 The invention according to claim 2 is, for example, as shown in an embodiment described below with reference to the drawings, from one blank sheet for assembly B2 obtained by cutting a sheet raw material S having a predetermined width, to each surface of a rectangular parallelepiped. A box body 40 that is folded into a box shape having a double wall structure, and an inner lid 41 and a stacked bottom 42 of the box body 40 that are cut out from the remaining sheet portion of the same sheet raw material S, respectively. Each of the first side plate portions 11 to 14 on the front, rear, left and right sides of the rectangular first bottom plate portion 10 of the outer box body C1 provided in the box body 40 in the assembly blank sheet B2. Are connected via a fold a for mountain fold, and between the first side plate portions 11-14 between the adjacent front, rear, left and right are for valley folds extending outward from the respective corners of the first bottom plate portion 10. Connecting plate portion 15 provided with an oblique crease c 18 are connected to each other via a crease b for mountain fold, and a cover plate portion 22 is connected to an upper edge of the first rear side plate portion 12 of the outer box body C1 via a fold d for mountain fold. On the other hand, on the upper edge of the first front side plate portion 11, an interior plate material 20 'forming an inner box body C2' is continuously provided in a U shape via a parallel fold e for folding, and the lid plate The portion 22 has reinforcing flaps 22a and 22a formed on the left and right ends thereof, and has a double lid structure in which both reinforcing flaps are folded and pasted on the lid surface 22b in advance, and the interior plate 20 'is interposed via the parallel folds e. A second front plate portion 30 that is folded and overlapped with the first front plate portion 11, and an upper edge of the second front plate portion 30 via a fold g for valley folding, and the first bottom plate portion 10 And a second bottom plate portion 31 that is folded on the upper edge of the second bottom plate portion 31 via a fold h for valley folding. The second rear plate portion 32 folded on the first rear plate portion 12 and the left and right edges of the second rear plate portion 32 are connected to each other via a fold j for valley folding, and the outer box body C1 Second left and right side plate portions 33 and 34 that are folded on the first left and right side plate portions 13 and 14, respectively, and the connecting plate portions 15 to 18 are connected with the first fold clan for the valley fold c as a boundary. The plate halves on the side adjacent to the front plate portion 11 and the first rear plate portion 12 are used as the pasting pieces 15a, 16a, 17a, and 18a, respectively, and the inner surfaces of these pasting pieces are the first front plate portion 11 and the first plate portion. When the first front side plate part 11 and the first rear side plate part 12 are bent at the time of assembly, the outer box body C1 is formed into a bag-like container shape without a gap. While the inner lid 41 and the weight The bottom 42 is cut out from the remaining sheet portions remaining on the left and right sides of the second front plate portion 30 and the second bottom plate portion 31 of the interior plate material 20 ′ in the sheet raw material S, and the inner lid 41 is cut out. Has a rectangular lid piece 41a in accordance with the upper opening 39 of the box body 40 and a sealing flap 41b bent at one side edge of the lid piece 41a. During assembly, the sealing flap 41b Is overlapped with the second front side plate portion 30 and covered with the box body 40, and the overlapping bottom 42 is formed in a rectangular shape in accordance with the outer shape of the first and second bottom plate portions 10 and 31, and is assembled. The box body 40 has a triple bottom structure that is stacked on the first bottom plate portion 10 or the second bottom plate portion 31.

請求項３に記載の発明は、請求項１又は２に記載の配送用箱Ａ１・Ａ２において、たとえば以下に図面を用いて説明する実施の形態に示すとおり、前記シート原材Ｓとして、表面に防水加工を施した段ボール又は防水性を有する素材からなる段ボールを用いてなることを特徴とする。 In the delivery box A1 or A2 according to the first or second aspect, for example, the sheet raw material S is provided on the surface of the delivery box A1 or A2 as described below with reference to the drawings. It is characterized by using a corrugated cardboard made of waterproof processing or a corrugated cardboard made of a waterproof material.

請求項４に記載の発明は、請求項１又は２に記載の配送用箱Ａ１・Ａ２において、たとえば以下に図面を用いて説明する実施の形態に示すとおり、前記シート原材Ｓとして、波形の樹脂製中芯材１を２枚の板紙２・３で挟着した構造の段ボールを用いてなることを特徴とする。 In the delivery box A1 or A2 according to the first or second aspect, for example, as shown in an embodiment described below with reference to the drawings, the sheet raw material S is corrugated. It is characterized by using a cardboard having a structure in which a resinous core material 1 is sandwiched between two paperboards 2 and 3.

請求項１に記載の発明によれば、（１）前後の第１側板部を曲げ起こすと、連結板部を介して左右の第１側板部も連動して起立し、蓋板部と内装板材の開いた袋状器形の外箱体がワンタッチで折り上がり、次いで、開いた内装板材を外箱体内へ向け折り目に沿って折り込んで落し込むだけで、外箱体内に内箱体が折り重なって形成され、後は蓋板部を閉じれば、直方体の各面が多重壁構造をなす箱体に組み上がる結果、たとえ不慣れな作業者であっても、時間と手間を要することなく、簡単に多重壁構造の配送用箱を組み立てることができる。しかも、（２）外箱体が、第１底板部と前後左右の第１側板部とが隙間のない無継ぎ目で連なった袋状器形の形態に折り上がるため、収納した配送品が、たとえ生鮮魚介類等の水分を多く含んだものであっても、途中で水漏れを起こすことなく、輸送したり保管したりすることができる。そして、（３）シート原材の紙幅方向に凹凸の少ない比較的単純な形状の組立ブランクシートで済み、その組立ブランクシートから、直方体の各面が多重壁構造をなす箱形に折り上がるようにした配送用箱であるため、それだけ使用しないで不用に残る部分が少なくなり、段ボール等のシート原材を無駄なく使用し、その分だけ材料コストを低減することができる。 According to the first aspect of the present invention, (1) when the front and rear first side plate portions are bent and raised, the left and right first side plate portions are also erected in conjunction with each other via the connecting plate portion, and the lid plate portion and the interior plate material. The opened bag-shaped outer box body is folded with a single touch, and then the inner board is folded into the outer box body just by folding the opened interior plate material into the outer box body along the crease. After the lid plate is closed, each side of the rectangular parallelepiped is assembled into a box with a multi-wall structure. As a result, even an inexperienced worker can easily multiplex without taking time and effort. It can assemble a wall-shaped delivery box. In addition, (2) the outer box is folded into a bag-like shape in which the first bottom plate and the first, left, right, and left side plates are connected without gaps. Even if it contains a lot of water, such as fresh seafood, it can be transported and stored without causing water leakage. (3) An assembly blank sheet having a relatively simple shape with few irregularities in the paper width direction of the sheet raw material is sufficient, and from the assembly blank sheet, each surface of the rectangular parallelepiped is folded into a box shape having a multi-wall structure. Since the delivery box is used, the portion that is not used unnecessarily is reduced, and sheet raw materials such as cardboard can be used without waste, and the material cost can be reduced accordingly.

請求項２に記載の発明によれば、上述した（１）・（２）に記載の効果に加えて、（４）左右前後の四方各面が二重壁構造に折り上がると共に、内蓋と重ね底とでそれぞれ蓋側とベースの底側が共に三重壁構造になった配送用箱に組み立てられ、それだけ断熱性能が高められると共に、衝撃強度を上げて耐久性を向上させ、また、収納する配送品を確実に保護することもできる。また、（５）内蓋にはシール用フラップを有し、組み立て時、シール用フラップを第２前側板部に重ねて箱本体に被せると、蓋板部を止める角縁部位を、シール用フラップで塞いでシールすることができ、それだけ箱本体内の気密性を向上させることができる。更に、（６）内蓋および重ね底は、箱本体と同じシート原材を利用し、そのシート原材における内装板材の第２前側板部と第２底板部の左右両側に残る残余シート部分から、それぞれ切り出して作製するため、それだけ使用しないで不用に残る部分がほとんどなくなり、段ボール等のシート原材を無駄なく使用し、その分材料コストをより一層低減させることができる。 According to the invention described in claim 2, in addition to the effects described in (1) and (2) above, (4) the left and right and front and rear four sides are folded into a double wall structure, Delivered to the bottom of the base and the bottom of the base with a triple-walled delivery box. The heat insulation performance is increased and the impact strength is increased to improve durability and storage. The product can also be reliably protected. (5) The inner lid has a sealing flap, and when assembled, when the sealing flap is overlapped with the second front side plate portion and put on the box body, the corner edge portion that stops the lid plate portion becomes the sealing flap. It can be closed and sealed, and the airtightness in the box body can be improved accordingly. Further, (6) the inner lid and the stacked bottom use the same sheet raw material as the box body, and the remaining sheet portions remaining on both the left and right sides of the second front plate portion and the second bottom plate portion of the interior plate material in the sheet raw material. Since each of them is cut out and produced, there is almost no unnecessary portion left without being used, and sheet raw materials such as cardboard can be used without waste, and the material cost can be further reduced accordingly.

請求項３に記載の発明によれば、シート原材として、表面に防水加工を施した段ボール又は防水性を有する素材からなる段ボールを用いるため、耐水性を上げることができる。請求項４に記載の発明によれば、同様に耐水性を高める効果に加えて、衝撃強度を上げて耐久性を向上させることもできる。 According to the invention described in claim 3, since the corrugated cardboard whose surface is waterproofed or made of a waterproof material is used as the sheet raw material, the water resistance can be increased. According to the invention described in claim 4, in addition to the effect of increasing the water resistance, it is also possible to increase the impact strength and improve the durability.

以下、図面を参照しつつ、本発明の実施の形態について詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１は、本発明の配送用箱に使用する組立用ブランクシートの展開平面図である。図２は、組立用ブランクシートを一部折曲加工し、配送用箱として組み立てる前の扁平状態で示す斜視図、図３〜図６は、配送用箱を組み立てるまでの手順を示す斜視図、図７および図８は、それぞれ組み立てた配送用箱の縦断面図である。 FIG. 1 is a developed plan view of a blank sheet for assembly used in the delivery box of the present invention. FIG. 2 is a perspective view showing a flat state before partially assembling a blank sheet for assembly and assembling as a delivery box, and FIGS. 3 to 6 are perspective views showing a procedure until the delivery box is assembled, 7 and 8 are longitudinal sectional views of the assembled delivery boxes.

配送用箱Ａ１は、素材のシート原材として段ボールを用い、この段ボールから製造する場合は、組み立てに先立ち、予めロール状に巻いたものから、図１中鎖線で示す所定幅のシート原材Ｓを引き出し、このシート原材Ｓを周知の製造装置で必要な形状に切断加工し、１枚の組立用ブランクシートＢ１を作製する。なお、図示例では、シート原材Ｓの段ボールとして、図２に一部拡大して示すとおり、波形の樹脂製中芯材１を２枚の板紙２・３で挟着した耐水性と衝撃強度を高めた構造の段ボールを使用する。この段ボールには、板紙２・３のうち外側の板紙３の外表面にのみ防水フィルムを貼着して防水加工している。シート原材Ｓとして、図示段ボールに限らず、表面に他の防水加工を施した段ボール、又は素材自体が防水性を有する、例えばプラスチック段ボール等の段ボールを使用することもできる。また、段ボールに限らず、厚紙などであってもよい。 The delivery box A1 uses corrugated cardboard as the raw material of the sheet, and when manufactured from this corrugated cardboard, the sheet raw material S having a predetermined width indicated by a chain line in FIG. Then, the sheet raw material S is cut into a necessary shape by a known manufacturing apparatus to produce one blank sheet for assembly B1. In the illustrated example, as the corrugated cardboard of the sheet raw material S, as shown in a partially enlarged view in FIG. 2, the water resistance and impact strength in which the corrugated resinous core material 1 is sandwiched between the two paperboards 2 and 3. Use corrugated cardboard with an improved structure. The cardboard is waterproofed by attaching a waterproof film only to the outer surface of the outer paperboard 3 of the paperboards 2 and 3. The sheet raw material S is not limited to the corrugated cardboard shown in the figure, and corrugated cardboard such as plastic corrugated cardboard or the like in which the surface itself is waterproofed or the material itself is waterproof. Moreover, it is not limited to cardboard but may be cardboard.

本発明では、斯かる組立用ブランクシートＢ１から、図７および図８に示すように、直方体の各面が多重壁構造をなす配送用箱Ａ１が折り上がる、以下のような折曲形態を備えた構成になっている。 In the present invention, as shown in FIGS. 7 and 8, a delivery box A 1 in which each surface of a rectangular parallelepiped forms a multi-wall structure is folded from such an assembly blank sheet B 1. It has a configuration.

組立用ブランクシートＢ１は、図１に示すように、後述する外箱体Ｃ１のベースとなる長方形の第１底板部１０の四辺に、前後左右の各第1側板部１１〜１４を、それぞれ山折り用の折り目ａを介して連設すると共に、隣り合う第１側板部間１１〜１４間に、それぞれ山折り用の折り目ｂを介して連結板部１５〜１８を連設している。左右の第１側板部１３・１４には、各々の上縁にフラップ１３ａ・１４ａが設けられている。連結板部１５〜１８は、第１底板部１０の各隅角から外向きに伸びる谷折り用の斜め折り目ｃを設けると共に、斜め折り目ｃを境に、第１前側板部１１および第１後側板部１２と隣接する側の板半分の領域を、それぞれ貼代片１５ａ・１６ａ、１７ａ・１８ａとしてなる。なお、連結板部１５・１６には、各々の角縁に、後述する蓋板部２２の第１蓋止め片２５に対応させて、大きく略方形に切り欠いた逃げ１９を設け、連結板部１７・１８には、各々の角縁に小さな切欠き２１を設けている。そして、連結板部１５〜１８は、図２に示すように、貼代片１５ａ・１６ａの内面を第１前側板部１１に折り重ねて、接着剤等で予め貼着すると共に、貼代片１７ａ・１８ａの内面を第１後側板部１２に折り重ねて、接着剤等で予め貼着し、第１底板部１０と前後左右の第１側板部１１〜１４間を継ぎ目なく連設させて、隙間のない袋状器形に折り上がる折曲形態をなしている。 As shown in FIG. 1, the assembly blank sheet B 1 includes a first side plate portions 11 to 14 on the four sides of a rectangular first bottom plate portion 10 that serves as a base of an outer box body C 1 to be described later. The connecting plate portions 15 to 18 are connected to each other between the adjacent first side plate portions 11 to 14 via the mountain fold folds b. The left and right first side plate portions 13 and 14 are respectively provided with flaps 13a and 14a at the upper edges. The connecting plate portions 15 to 18 are provided with diagonal folds c for valley folds extending outward from the respective corners of the first bottom plate portion 10, and the first front side plate portion 11 and the first rear side with the diagonal fold c as a boundary. The area | region of the board half of the side adjacent to the side board part 12 becomes the paste margin pieces 15a * 16a, 17a * 18a, respectively. The connecting plate portions 15 and 16 are provided with reliefs 19 which are cut out in large, substantially rectangular shapes at the respective corner edges in correspondence with first cover stoppers 25 of the cover plate portion 22 described later. 17 and 18 are provided with small notches 21 at the respective corner edges. And as shown in FIG. 2, the connection board parts 15-18 fold up the inner surface of the sticking piece 15a * 16a on the 1st front side board part 11, and stick it beforehand with an adhesive etc., and a sticking piece. The inner surfaces of 17a and 18a are folded on the first rear side plate portion 12 and adhered in advance with an adhesive or the like, and the first bottom plate portion 10 and the first side plate portions 11 to 14 on the front, rear, left and right are continuously connected. It has a folded shape that folds into a bag-like shape without gaps.

次に、前後に対向する第１側板部１１・１２のうち、第１後側板部１２の上縁には、図１に示すように、山折り用の折り目ｄを介して蓋板部２２を連設する一方、第１前側板部１１の上縁には、コ形に折り曲げるための平行折り目ｅを介して後述の内箱体Ｃ２を形成する内装板材２０を連設している。 Next, as shown in FIG. 1, the lid plate portion 22 is placed on the upper edge of the first rear plate portion 12 of the first side plate portions 11, 12 that are opposed to each other in the front-rear direction via a fold d for mountain folding. On the other hand, on the upper edge of the first front side plate portion 11, an interior plate material 20 that forms an inner box body C2 to be described later is provided continuously via a parallel fold e for bending into a U shape.

蓋板部２２は、左右側端に、対称な補強フラップ２２ａ・２２ａを残して形成し、それらを折り目ｆを介して連設している。補強フラップ２２ａ・２２ａには、各々の角縁に、後述する第２蓋止め片２６に対応させた形状に切り欠いた逃げ２３を設けている。また、連結板部１７・１８の貼代片１７ａ・１８ａとの間に、対称なスリット２４を形成している。そして、蓋板部２２は、両補強フラップ２２ａ・２２ａを蓋面２２ｂに、図２に示すように折り重ねて接着剤等で貼り合わせ、予め二重蓋構造に作製している。蓋面２２ｂの上縁には、凸状に第１蓋止め片２５を残して形成する一方、第１蓋止め片２５の基部には、そこを切除し、後述の第２蓋止め片２６が差し込まれる第１差込穴２７を開けている。第１蓋止め片２５は、予めＬ板状に折り癖を付けて曲げ起こしてなる。 The lid plate portion 22 is formed on the left and right side sides leaving symmetrical reinforcing flaps 22a and 22a, and these are connected via a fold line f. Reinforcing flaps 22a and 22a are provided with reliefs 23 cut out in shapes corresponding to second lid stopper pieces 26 described later at the respective corner edges. Further, symmetrical slits 24 are formed between the connecting strips 17a and 18a of the connecting plate portions 17 and 18. Then, the lid plate portion 22 is formed in advance in a double lid structure by folding both reinforcing flaps 22a and 22a on the lid surface 22b and bonding them together with an adhesive or the like as shown in FIG. On the upper edge of the lid surface 22b, the first lid stopper piece 25 is formed so as to leave a convex shape, while the first lid stopper piece 25 is cut off at the base portion, and a second lid stopper piece 26 described later is provided. A first insertion hole 27 to be inserted is opened. The first lid stopper piece 25 is bent and raised in advance with a crease in an L-plate shape.

他方、内装板材２０は、図１に示すように、平行折り目ｅを介して第１前側板部１１に連設した第２前側板部３０と、第２前側板部３０の上縁に谷折り用の折り目ｇを介して連設した第２底板部３１と、第２底板部３０の上縁に谷折り用の折り目ｈを介して連設した第２後側板部３２とを備える。第２前側板部３０と第２底板部３１間には、平行折り目ｅを横断する切り込みを入れて、第２蓋止め片２６を設けている。第２蓋止め片２６は、二つ折りしてＬ形に曲げ起こしている。また、平行折り目ｅにおける第２蓋止め片２６の設置位置に、第１蓋止め片２５を差し込むための第２差込穴２８を開けている。第２底板部３１は、その左右側端に対称な補強フラップ３１ａ・３１ａを残して形成し、それらを折り目ｉを介して連設している。そして、両補強フラップ３１ａ・３１ａを内面に折り重ねて接着剤等で貼り合わせ、予め二重底構造に作製している。第２後側板部３２は、左右側縁に、それぞれ谷折り用の折り目ｊを介して対称な第２の左右側板部３３・３４を連設している。 On the other hand, as shown in FIG. 1, the interior plate material 20 is valley-folded at the upper edge of the second front plate portion 30 and the second front plate portion 30 connected to the first front plate portion 11 via the parallel fold e. The second bottom plate portion 31 provided continuously through the fold g for use, and the second rear plate portion 32 provided continuously at the upper edge of the second bottom plate portion 30 through the fold h for valley folding. Between the 2nd front side board part 30 and the 2nd bottom board part 31, the notch which crosses the parallel crease e is put and the 2nd cover stop piece 26 is provided. The second lid stopper piece 26 is folded in half and bent into an L shape. Moreover, the 2nd insertion hole 28 for inserting the 1st cover stopper piece 25 is opened in the installation position of the 2nd cover stopper piece 26 in the parallel fold e. The second bottom plate portion 31 is formed by leaving symmetrical reinforcing flaps 31a and 31a at the left and right side ends thereof, and these are continuously provided via a fold line i. Then, both the reinforcing flaps 31a and 31a are folded on the inner surface and bonded together with an adhesive or the like, so that a double bottom structure is prepared in advance. The second rear side plate portion 32 is provided with second symmetrical left and right side plate portions 33 and 34 connected to the left and right side edges via a fold j for valley folding, respectively.

さて、配送用箱Ａ１は、それ自体を搬送するときや保管するときは、たとえば図２に示すように組立用ブランクシートＢ１を、扁平に広げた状態のまま複数枚重ねたり、折り目ｅに沿って２つ折りに畳んで重ねたり、或いは折り目ｄ・ｅに沿って３つ折りに畳んで重ねたりすることにより、嵩張らず、省スペースにて搬送したり保管したりすることができる。 Now, when the delivery box A1 is transported or stored, for example, as shown in FIG. 2, a plurality of assembly blank sheets B1 are stacked in a flat state or along the fold line e. By folding in two and overlapping, or by folding and folding in three along the creases d and e, it is not bulky and can be transported and stored in a space-saving manner.

配送用箱Ａ１を使用するため、図２の扁平な組立用ブランクシートＢ１から箱形に組み立てるときは、左右の第１側板部１３・１４のフラップ１３ａ・１４ａを外向きに開いた状態にしてから、前後の第１側板部１１・１２を両手で曲げ起こす。すると、曲げ起こし動作に伴って、連結板部１５〜１８を介して左右の第１側板部１３・１４も連動して起立し、図３に示すように、先ずは、蓋板部２２と内装板材２０を開いて上部開口状態の外箱体Ｃ１が、ワンタッチで折り上がる。外箱体Ｃ１は、第１底板部１０と、前後左右の第１側板部１１〜１４とが継ぎ目なく連なった袋状器形に形付けられる。 Since the delivery box A1 is used, when assembling the flat assembly blank sheet B1 in FIG. 2 into a box shape, the flaps 13a and 14a of the left and right first side plate portions 13 and 14 are opened outward. Then, the front and rear first side plate portions 11 and 12 are bent with both hands. Then, along with the bending raising operation, the left and right first side plate portions 13 and 14 are also erected in conjunction with each other via the connecting plate portions 15 to 18, and as shown in FIG. The outer casing C1 with the plate member 20 opened and the upper opening state is folded up with one touch. The outer box body C1 is shaped into a bag-like shape in which the first bottom plate portion 10 and the first side plate portions 11 to 14 on the front, rear, left, and right sides are continuously connected.

次いで、両手で押えて外箱体Ｃ１の箱形状を維持しながら、開いた内装板材２０の第２前側板部３０を、平行折り目ｅに沿って、図４に示すように外箱体Ｃ１内へ向けて折り込む。更に折り目ｇに沿って第２前側板部３０と第２底板部３１を谷折りし、折り目ｈに沿って第２底板部３１と第２後側板部３２を谷折りしながら、外箱体Ｃ内へ押し込むと共に、左右の第２側板部３３・３４を折り目ｊに沿って谷折りし、互いに内向きに対向させながら、上から第２後側板３２を押して外箱体Ｃ１内に落し込む。すると、落し込み動作に従って、図５に示すように第１前側板部１１に対し第２前側板部３０が、第１後側板部１２に対し第２後側板部３２が、第１の左右側板部１３・１４に対し第２の左右側板部３３・３４が、第１底板部１０に対し第２底板部３１が、それぞれ略同時に連動して折り重なり、外箱体Ｃ１内に上部開口の内箱体Ｃ２が重なって形成される。したがって、配送用箱Ａ１は、この組み立て段階で、ベースの底壁が第１底板部１０と二重底の第２底板部３１とで三重底構造になると共に、前後左右四方の各側面が二重壁構造をなす、上部開口２９を開けた状態の箱形に組み上がる。 Next, while maintaining the box shape of the outer box body C1 by pressing with both hands, the second front side plate portion 30 of the opened interior board member 20 is moved along the parallel fold line e as shown in FIG. Fold it towards. Further, the second front side plate part 30 and the second bottom plate part 31 are valley-folded along the fold line g, and the second bottom plate part 31 and the second rear side plate part 32 are valley-folded along the fold line h, while the outer casing C While pushing in, the left and right second side plate portions 33 and 34 are valley-folded along the fold line j, and while facing each other inward, the second rear side plate 32 is pushed from above and dropped into the outer box body C1. Then, according to the dropping operation, as shown in FIG. 5, the second front plate portion 30 with respect to the first front plate portion 11, the second rear plate portion 32 with respect to the first rear plate portion 12, and the first left and right side plates. The second left and right side plate portions 33 and 34 fold with respect to the portions 13 and 14 and the second bottom plate portion 31 with respect to the first bottom plate portion 10 folds in conjunction with each other at the same time. Boxes C2 are formed to overlap. Therefore, the delivery box A1 has a triple bottom structure in which the bottom wall of the base is composed of the first bottom plate portion 10 and the double bottom second bottom plate portion 31 in this assembly stage, and two side surfaces in the front, rear, left, and right sides are two. It is assembled in a box shape with an upper opening 29 having a heavy wall structure.

しかる後、配送用箱Ａ１内に、例えば、生鮮食品など保冷の必要な配送品をドライアイスなど蓄冷材と一緒に収納してから、折り目ｄに沿って二重蓋構造の蓋板部２２を曲げ倒して閉める。そして、第１蓋止め片２５を平行折り目ｅ間の第２差込穴２８に差し込んで蓋板部２２を止めてから、その蓋板部２２側の第１差込穴２７に第２蓋止め片２６を差し込んで、蓋板部２２を二重に止める。こうして配送用箱Ａ１は、直方体の各６面が多重壁構造をなす箱体に、図６に示すように折り上がり組み立てられる。 After that, for example, a delivery product that needs to be kept cold, such as fresh food, is stored together with a cold storage material such as dry ice in the delivery box A1, and then the lid plate portion 22 having a double lid structure is bent down along the fold line d. Close. Then, the first lid stopper piece 25 is inserted into the second insertion hole 28 between the parallel folds e to stop the lid plate portion 22, and then the second lid stopper is inserted into the first insertion hole 27 on the lid plate portion 22 side. The piece 26 is inserted, and the lid plate portion 22 is doubled. In this way, the delivery box A1 is folded and assembled into a box body in which each of six sides of the rectangular parallelepiped forms a multiple wall structure as shown in FIG.

この組み立て時、配送用箱Ａ１には、図７および図８に示すように、折り重なった第１および第２底板部１０・３１間と、左右の第１および第２側板部１３・３３、１４・３４間と、前後の第１および第２側板部間１２・３２、１１・３０間に、折曲状態にある段ボールの可撓性に基づいて僅かに隙間を生じ、各隙間に熱伝導性の低い空気層３５が形成される。従って、配送用箱Ａ１では、直方体の各６面が多重壁構造であると共に、この空気層３５によって、一段と断熱性が高められ、収納した配送品の保冷効果（又は保温効果）を著しく向上させることができる。 At the time of this assembly, as shown in FIGS. 7 and 8, the delivery box A1 includes the folded first and second bottom plate portions 10, 31 and the left and right first and second side plate portions 13, 33, 14 A slight gap is created between 34 and between the front and rear first and second side plate portions 12, 32, 11 and 30 based on the flexibility of the corrugated cardboard in the bent state, and the thermal conductivity in each gap A low air layer 35 is formed. Therefore, in the delivery box A1, each of the six sides of the rectangular parallelepiped has a multi-wall structure, and the air layer 35 further enhances the heat insulation, and remarkably improves the cold insulation effect (or the heat insulation effect) of the stored delivery goods. be able to.

しかも、配送用箱Ａ１は、素材が防水性段ボールであると共に、外箱体Ｃ１が隙間のない無継ぎ目の袋状器形をなす箱形態であるため、収納した配送品が生鮮魚介類等の水分を多く含んだものであっても、途中で水漏れを起こすことなく、輸送したり保管したりすることができる。 Moreover, since the shipping box A1 is made of waterproof cardboard and the outer box body C1 has a seamless bag-like container shape with no gaps, the stored delivery items such as fresh seafood Even if it contains a lot of water, it can be transported and stored without causing water leakage.

ところで、本発明は、上記配送用箱Ａ１に代え、たとえば図９〜図１３に示す配送用箱Ａ２のように異なる構成にすることができる。図９は、配送用箱Ａ２に使用する組立用ブランクシートＢ２の展開平面図である。図１０は、組立用ブランクシートＢ２を一部折曲加工し、配送用箱として組み立てる前の扁平状態で示す斜視図、図１１〜図１３は、配送用箱Ａ２を組み立てるまでの手順を示す斜視図である。なお、配送用箱Ａ２において、上記配送用箱Ａ１と同一の構成部分には、それぞれ同一符号を付し、以下に説明する。 By the way, this invention can be set as a different structure like the delivery box A2 shown in FIGS. 9-13 instead of the said delivery box A1. FIG. 9 is a developed plan view of an assembling blank sheet B2 used for the delivery box A2. FIG. 10 is a perspective view showing a flat state before partially assembling the assembling blank sheet B2 and assembling it as a delivery box, and FIGS. 11 to 13 are perspective views showing a procedure until assembling the delivery box A2. FIG. In the delivery box A2, the same components as those in the delivery box A1 are denoted by the same reference numerals and will be described below.

配送用箱Ａ２は、図９中鎖線で示す所定幅のシート原材Ｓを切断加工し、組立用ブランクシートＢ２を作製する。そこで、図示他例では、斯かる組立用ブランクシートＢ２から、直方体の各６面が二重壁構造をなす箱形に折り上がるようにした箱本体４０と、同じシート原材Ｓの残余シート部分から作製する箱本体４０の内蓋４１および重ね底４２とを備えた構成にする。 In the delivery box A2, a sheet raw material S having a predetermined width indicated by a chain line in FIG. 9 is cut to produce an assembly blank sheet B2. Accordingly, in the other example shown in the figure, the remaining sheet portion of the same sheet raw material S and the box main body 40 in which each of the six sides of the rectangular parallelepiped is folded up into a box shape having a double wall structure from the assembling blank sheet B2. The box body 40 produced from the above has an inner lid 41 and an overlapping bottom 42.

組立用ブランクシートＢ２は、図１に示した組立用ブランクシートＢ１と異なり、図９に示すように、特に、箱本体４０の内装板材２０´において、第２前側板部３０および第２底板部３１の左右両側を切除し、第２底板部３１に補強フラップを有しない形態に切断加工してなる。一方で、これら左右両側に残るシート原材Ｓの残余シート部分を利用し、その残余シート部分から、内蓋４１および重ね底４２を、それぞれ切り出して作製する。 The assembly blank sheet B2 is different from the assembly blank sheet B1 shown in FIG. 1 and, as shown in FIG. 9, in particular, in the interior plate member 20 ′ of the box body 40, the second front plate portion 30 and the second bottom plate portion. The left and right sides of 31 are cut out and cut into a form in which the second bottom plate 31 does not have a reinforcing flap. On the other hand, using the remaining sheet portions of the sheet raw material S remaining on both the left and right sides, the inner lid 41 and the stacked bottom 42 are cut out from the remaining sheet portions, respectively.

内蓋４１は、箱本体４０の上部開口３９に合わせて切り出した長方形の蓋片部４１ａと、蓋片部４１ａの一側の側縁で折り曲げたシール用フラップ４１ｂとからなる。一方、重ね底４２は、底板部１０・３１の外形状に合わせて切り出し、それらより縦横サイズがやや小さい長方形に形成してなる。 The inner lid 41 includes a rectangular lid piece portion 41a cut out in accordance with the upper opening 39 of the box body 40, and a sealing flap 41b bent at one side edge of the lid piece portion 41a. On the other hand, the stacked bottom 42 is cut out in accordance with the outer shape of the bottom plate portions 10 and 31, and is formed into a rectangle having a slightly smaller vertical and horizontal size.

さて、配送用箱Ａ２を使用するため、箱本体４０を組み立てるときは、前述したと同様に、図１０に示した扁平な組立用ブランクシートＢ２から、先ずは、前後の第１側板部１１・１２を両手で曲げ起こし、図１１に示すように蓋板部２２と内装板材２０´が左右に開いて、上部が開口した袋状器形の外箱体Ｃ１を折り上げる。 Now, in order to use the delivery box A2, when assembling the box body 40, first, the front and rear first side plate portions 11 and 11 are firstly used from the flat assembly blank sheet B2 shown in FIG. 12 is bent and raised with both hands, and as shown in FIG. 11, the cover plate portion 22 and the interior plate material 20 ′ are opened to the left and right, and the bag-like outer box body C1 having an open upper portion is folded up.

次いで、両手で押さえて外箱体Ｃ１の箱形状を維持しながら、開いた内装板材２０´の第２前側板部３０を外箱体Ｃ１内へ向けて折り込み（図４参照）、更に第２前側板部３０にと第２底板部３１を、第２底板部３１と第２後側板部３２を、順次谷折りしながら、外箱体Ｃ１内に押し込むと共に、左右の第２側板部３３・３４を谷折りし、互いに対向させながら、上から第２後側板３２を押して外箱体Ｃ１内に落し込む。すると、落し込み動作に従って、図１２に示すように第１前側板部１１に対し第２前側板部３０が、第１後側板部１２に対し第２後側板部３２が、第１の左右側板部１７・１８に対し第２の左右側板部３３・３４が、第１底板部１０に対し第２底板部３１が略同時に連動して折り重なり、外箱体Ｃ１内に内箱体Ｃ２´が重ねて形成される。その結果、配送用箱Ａ２では、この組み立て段階で、底面と前後左右の各側面が二重壁構造をなす、上部開口３９を開けた状態の箱本体４０が組み上がる。 Next, while holding the box shape of the outer box body C1 by pressing with both hands, the second front side plate portion 30 of the opened interior board member 20 ′ is folded into the outer box body C1 (see FIG. 4), and the second The second bottom plate 31 and the second bottom plate 31 and the second rear plate 32 are sequentially pushed into the outer box body C1 while being valley-folded, and the left and right second side plates 33. The second rear side plate 32 is pushed from above and dropped into the outer box body C1 while the valleys 34 are folded and opposed to each other. Then, according to the dropping operation, as shown in FIG. 12, the second front side plate portion 30 with respect to the first front side plate portion 11, the second rear side plate portion 32 with respect to the first rear side plate portion 12, and the first left and right side plates. The second left and right side plate portions 33 and 34 are folded with respect to the portions 17 and 18, and the second bottom plate portion 31 is folded with respect to the first bottom plate portion 10 at substantially the same time, so that the inner box body C2 ′ is folded inside the outer box body C1. Overlaid. As a result, in the delivery box A2, at this assembly stage, the box body 40 in a state where the bottom opening and the front, rear, left and right side surfaces form a double wall structure and the upper opening 39 is opened is assembled.

しかる後、箱本体４０には、上部開口３９から重ね底４２を入れて、第２底板部３１上に重ね合わせ、ベースの底壁を三重底構造にする。なお、重ね底４２は、上述したが、初めに外箱体Ｃ１を器形に折り上げたとき、上部開口３９から入れて第１底板部１０上に重ね合わせて置いて、ベースの底壁を予め三重底構造にするとよい。次いで、箱本体４０内に、例えば、生鮮食品など保冷の必要な配送品をドライアイスなど蓄冷材と一緒に収納してから、図１３に示すように、内蓋４１を箱本体４０に被せて閉める。そのとき、内蓋４１は、シール用フラップ４１ｂを下向きにして被せ、第２前側板部３０の上縁に重ねて嵌め込む。それから、二重蓋の蓋板部２２を曲げ倒して内蓋４１上に重ね合わせてから、前述と同様に、第１蓋止め片２５と第２蓋止め片２６とで蓋板部２２を二重に止める。こうして配送用箱Ａ２は、蓋側と底側が共に三重壁になると共に、左右前後の四方各面が二重壁の多重壁構造をなす箱体に組み立てられる。 Thereafter, an overlapping bottom 42 is inserted into the box main body 40 from the upper opening 39 and overlapped on the second bottom plate portion 31 so that the bottom wall of the base has a triple bottom structure. Although the overlap bottom 42 has been described above, when the outer box body C1 is first folded into a container shape, it is inserted through the upper opening 39 and placed on the first bottom plate portion 10 so that the bottom wall of the base is placed. A triple bottom structure is preferable. Next, for example, a delivery product that needs to be kept cool, such as fresh food, is stored together with a cold storage material such as dry ice in the box body 40, and then an inner lid 41 is put on the box body 40 as shown in FIG. Close. At that time, the inner lid 41 is covered with the sealing flap 41 b facing downward, and is fitted on the upper edge of the second front side plate portion 30. Then, the lid plate portion 22 of the double lid is bent over and overlaid on the inner lid 41, and then the lid plate portion 22 is doubled by the first lid stopper piece 25 and the second lid stopper piece 26 as described above. stop. In this way, the delivery box A2 is assembled into a box body in which the lid side and the bottom side are both triple-walled, and the left and right and front and rear four sides form a double-walled multi-wall structure.

以上の配送用箱Ａ２では、第１および第２蓋止め片２５・２６を差込穴２８・２７に差し込んで蓋板部２２を止める角縁部位を、内蓋４１のシール用フラップ４１ｂで塞いでシールすることにより、気密性が保持される。 In the above delivery box A2, the first and second lid stopper pieces 25 and 26 are inserted into the insertion holes 28 and 27, and the corner portion where the lid plate portion 22 is stopped is closed with the sealing flap 41b of the inner lid 41. By sealing with, airtightness is maintained.

また、配送用箱Ａ２では、配送品の梱包時、箱本体４０内に配送品を入れて重ね底４２上に載せた後、内蓋４１を上部開口３９から重ね底４２側へ所望深さ押し込み、内蓋４１を、その上に蓄冷材等を載せる棚板として使用する構成にすることもできる。そのため、内蓋４１は、シール用フラップ４１ｂと反対の他側側縁にも、押し込みガイド用にフラップを設けた形状にしてもよい。 In the delivery box A2, when packing the delivery product, the delivery product is placed in the box body 40 and placed on the stacking bottom 42, and then the inner lid 41 is pushed from the upper opening 39 to the stacking bottom 42 side by a desired depth. The inner lid 41 can also be configured to be used as a shelf plate on which a cold storage material or the like is placed. Therefore, the inner lid 41 may have a shape in which a flap is provided for a push-in guide on the other side edge opposite to the sealing flap 41b.

なお、上記図示例では、蓋止め片２５・２６と差込み穴２７・２８を設けて蓋板部２２を二重に止める構造であった。しかし、本発明の配送用箱では、たとえば図１４に示すように、蓋板部２２の上縁に、それと略同じ長さのフラップ状蓋止め片２２ｃを形成し、蓋板部２２を閉じるとき、この蓋止め片２２ｃを、左右の第１側板部１３・１４のフラップ１３ａ・１４ａと第２前側板部３０間に差し込んで止める、単純な蓋止め構造にしてもよい。 In the illustrated example, the lid stoppers 25 and 26 and the insertion holes 27 and 28 are provided so that the lid plate portion 22 is doubled. However, in the delivery box of the present invention, for example, as shown in FIG. 14, when a flap-shaped lid stopper piece 22c having substantially the same length is formed on the upper edge of the lid plate portion 22 and the lid plate portion 22 is closed. The lid stopper piece 22c may be a simple lid stopper structure that is inserted and stopped between the flaps 13a and 14a of the left and right first side plate portions 13 and 14 and the second front side plate portion 30.

本発明の配送用箱に使用する組立用ブランクシートの展開平面図である。It is an expansion | deployment top view of the assembly blank sheet used for the delivery box of this invention. 組立用ブランクシートを一部折曲加工し、配送用箱として組み立てる前の扁平状態で示す斜視図である。It is a perspective view shown in the flat state before partially folding the blank sheet for assembly and assembling it as a delivery box. 配送用箱の外箱体を組み立てた状態を示す斜視図である。It is a perspective view which shows the state which assembled the outer box body of the delivery box. 配送用箱の内箱体を組み立てる途中の状態を示す斜視図である。It is a perspective view which shows the state in the middle of assembling the inner box body of a delivery box. 配送用箱の内箱体を組み立てて外箱体に重ねた状態を示す斜視図である。It is a perspective view which shows the state which assembled the inner box body of the delivery box and piled up on the outer box body. 配送用箱を組み立て終えた状態を示す斜視図である。It is a perspective view which shows the state which finished assembling the delivery box. 図６中線Ｘ−Ｘに沿って得た配送用箱の縦断面図である。It is a longitudinal cross-sectional view of the delivery box obtained along the middle line XX in FIG. 図６中線Ｙ−Ｙに沿って得た配送用箱の縦断面図である。It is a longitudinal cross-sectional view of the delivery box obtained along the middle line YY of FIG. 本発明の他例である配送用箱に使用する組立用ブランクシートの展開平面図である。It is an expansion | deployment top view of the blank sheet for assembly used for the delivery box which is the other example of this invention. 他例の組立用ブランクシートを一部折曲加工し、配送用箱として組み立てる前の扁平状態で示す斜視図である。It is a perspective view shown in the flat state before partially folding the blank sheet for assembly of other examples, and assembling it as a delivery box. 箱本体の外箱体を組み立てた状態を示す斜視図である。It is a perspective view which shows the state which assembled the outer box body of the box main body. 箱本体の内箱体を組み立てて外箱体に重ねた状態を示す斜視図である。It is a perspective view which shows the state which assembled the inner box body of the box main body, and accumulated on the outer box body. 配送用箱を、箱本体に内蓋を被せた状態で示す斜視図である。It is a perspective view which shows the box for delivery in the state which covered the inner cover on the box main body. 蓋止め構造の異なる他例の配送用箱を、蓋を開けた状態で示す斜視図である。It is a perspective view which shows the delivery box of the other example from which a lid stop structure differs in the state which opened the lid | cover.

Explanation of symbols

Ａ１・Ａ２配送用箱
Ｂ１・Ｂ２組立用ブランクシート
Ｃ１外箱体
Ｃ２・Ｃ２´ 内箱体
Ｓシート原材
ａ〜ｊ折り目
１０第１底板部
１１第１前側板部
１２第１後側板部
１３第１左側板部
１４第１右側板部
１５〜１８連結板部
２０・２０´ 内装板材
２２蓋板部
３０第２前側板部
３１第２底板部
３２第２後側板部
３３第２左側板部
３４第２右側板部
４０箱本体
４１内蓋
４１ｂシール用フラップ
４２重ね箱
A1 and A2 Delivery boxes B1 and B2 Assembly blank sheet C1 Outer box body C2 and C2 'Inner box body S Sheet raw material aj Fold 10 First bottom plate portion 11 First front plate portion 12 First rear plate portion 13 1st left side plate part 14 1st right side plate part 15-18 Connection board part 20 * 20 'Interior board material 22 Cover plate part 30 2nd front side plate part 31 2nd bottom plate part 32 2nd back side plate part 33 2nd left side plate part 34 2nd right side board part 40 Box main body 41 Inner lid 41b Flap for sealing 42 Stacking box

Claims

A delivery box in which each side of a rectangular parallelepiped is folded up into a box shape having a multi-wall structure from one assembly blank sheet obtained by cutting a sheet raw material of a predetermined width,
In the assembly blank sheet,
On the four sides of the rectangular first bottom plate portion of the outer box body, the first side plate portions on the front, rear, left, and right sides are connected via folds for mountain folding,
Between the adjacent front, back, left and right first side plate portions, connecting plate portions provided with oblique folds for valley folds extending outward from the respective corners of the first bottom plate portion are respectively connected via folds for mountain folds. Connected,
A lid plate portion is connected to the upper edge of the first rear plate portion of the outer box body via a fold for mountain fold, while an inner box body is provided on the upper edge of the first front plate portion. The interior board material to be formed is connected in a U-shape through parallel folds for folding,
The lid plate portion has a double lid structure in which reinforcing flaps are formed on the left and right ends, and both reinforcing flaps are folded on the lid surface and attached in advance.
The interior plate material is connected via a fold for valley folding to a second front plate portion that is folded through the parallel folds and overlapped with the first front plate portion, and an upper edge of the second front plate portion, A second bottom plate portion that is folded on the first bottom plate portion, a second rear plate portion that is connected to the upper edge of the second bottom plate portion via a fold for valley folding, and is folded on the first rear plate portion; A second left and right side plate portion that is connected to the left and right side edges of the second rear side plate portion via a fold for valley folding, and is folded on each of the first left and right side plate portions in the outer box body, The second bottom plate part has a double bottom structure in which reinforcing flaps are formed on the left and right side ends, both reinforcing flaps are folded and pasted in advance,
Among the connecting plate portions, the plate halves on the side adjacent to the first front plate portion and the first rear plate portion are set as paste pieces on the boundary of the oblique folds for valley folds, and the inner surfaces of these paste pieces Are folded in advance on the first front side plate part and the first rear side plate part and pasted,
A delivery box comprising a form in which the outer box body is folded into a bag-like container shape without a gap when the first front side plate portion and the first rear side plate portion are bent and raised during assembly.

The remaining sheet of the same sheet raw material as the box body in which each side of the rectangular parallelepiped is folded into a box shape having a double wall structure from one assembly blank sheet obtained by cutting a sheet raw material of a predetermined width A box for delivery consisting of an inner lid and a piled bottom of the box body to be cut out from each part,
In the assembly blank sheet,
The four sides of the rectangular first bottom plate part of the outer box body provided in the box body are connected to the front, rear, left and right first side plate parts via folds for mountain folding,
Between the adjacent first, left, right, and left side plate portions, connecting plate portions provided with oblique folds for valley folds extending outward from the respective corners of the first bottom plate portion are respectively connected via folds for mountain folds. Connected,
A lid plate portion is connected to the upper edge of the first rear plate portion of the outer box body via a fold for folding the mountain, while an inner box body is formed on the upper edge of the first front plate portion. The interior plate material is connected to the U shape via parallel folds for folding,
The lid plate portion has a double lid structure in which reinforcing flaps are formed on the left and right ends, and both reinforcing flaps are folded on the lid surface and attached in advance.
The interior plate material is connected via a fold for valley folding to a second front plate portion that is folded through the parallel folds and overlapped with the first front plate portion, and an upper edge of the second front plate portion, A second bottom plate portion that is folded on the first bottom plate portion, a second rear plate portion that is connected to the upper edge of the second bottom plate portion via a fold for valley folding, and is folded on the first rear plate portion; A second left and right side plate portion that is connected to the left and right side edges of the second rear side plate portion via a fold for valley folding, and is folded on each of the first left and right side plate portions in the outer box body,
Among the connecting plate portions, the plate halves on the side adjacent to the first front plate portion and the first rear plate portion are set as paste pieces on the boundary of the oblique folds for valley folds, and the inner surfaces of these paste pieces Are folded in advance on the first front side plate part and the first rear side plate part and pasted,
While assembling, when the first front side plate portion and the first rear side plate portion are bent and raised, the outer box body is configured to be folded up into a bag-like container shape without a gap,
The inner lid and the stacked bottom are cut out from the remaining sheet portions remaining on the left and right sides of the second front plate portion and the second bottom plate portion of the interior plate material in the sheet raw material, respectively,
The inner lid has a rectangular lid piece portion that matches the upper opening of the box body, and a sealing flap that is bent at one side edge of the lid piece portion. 2 Cover the box body over the front plate,
The stacked bottom is formed in a rectangular shape in accordance with the outer shape of the first and second bottom plate portions, and the box body is formed in a triple bottom structure by overlapping on the first bottom plate portion or the second bottom plate portion during assembly. Featuring a shipping box.

The delivery box according to claim 1 or 2, wherein the sheet raw material is a corrugated cardboard having a waterproof surface or a corrugated cardboard made of a waterproof material.

The delivery box according to claim 1 or 2, wherein a corrugated cardboard having a structure in which a corrugated resinous core material is sandwiched between two paperboards is used as the sheet raw material.