JP2013184730A

JP2013184730A - Cardboard box

Info

Publication number: JP2013184730A
Application number: JP2012051548A
Authority: JP
Inventors: Reiko Shiibashi; 礼子椎橋
Original assignee: Oji Holdings Corp
Current assignee: Oji Holdings Corp
Priority date: 2012-03-08
Filing date: 2012-03-08
Publication date: 2013-09-19
Anticipated expiration: 2032-03-08
Also published as: JP5845981B2

Abstract

PROBLEM TO BE SOLVED: To provide a stackable cardboard box of a type in which recessed parts on a bottom surface and protrusions on an upper surface of upper and lower cardboard boxes are fitted.SOLUTION: At least one protrusion forming part for forming a protrusion B is formed between a pair of side plates 1, 3 and upper surface outer flaps 1a, 3a, in which the band-like protrusion forming parts 1c, 3c are sandwiched by two parallel cut lines z, z from two points in upper end side regions of both side plates to two points in regions of both upper surface outer flaps, folding parts L5, L7 between both the side plates and the upper surface outer flaps are not included, a folding part L13 is formed between the two cut lines in the region on an upper surface outer flap side, and the protrusion B is raised upward from an upper surface outer flap surface with the folding part as a vertex. Fitting recessed parts 1d, 3d which fit to the protrusions B of the other stacked cardboard are formed in both of bottom surface outer closed plates.

Description

本発明は、商品を収容した状態で多段に積み重ねて運搬しても荷崩れを起こすことがないスタッキング用段ボール箱に関する。特に本発明は、一枚の段ボールシートの打ち抜きブランクより段ボール箱を組み立てて商品を収容し封緘する作業によって同時にスタッキング用突起部を形成できる段ボール箱に関する。 The present invention relates to a cardboard box for stacking that does not cause collapse even when stacked and transported in a multistage manner in a state in which a product is accommodated. In particular, the present invention relates to a corrugated cardboard box in which a stacking projection can be formed at the same time by assembling a corrugated cardboard box from a single blank of a corrugated cardboard sheet to accommodate and seal a product.

矩形段ボール箱に商品を収容した状態で多数段積みして保管、運搬する際に、段積み段ボール箱の荷崩れを防止するために、段積み状態の上下の段ボール箱の天面と底面の相対する箇所に設けられている凹凸部を嵌合させて下方段ボール箱の天面と上方段ボール箱の底面間の滑りを防止する形式のスタッキング機能を有する段ボール箱として種々の構造の突起部を有する段ボール箱が提案されている。 When storing and transporting a large number of products stored in rectangular cardboard boxes, the top and bottom surfaces of the upper and lower cardboard boxes in the stacked state are Corrugated cardboard having protrusions of various structures as a corrugated cardboard box having a stacking function to prevent slippage between the top surface of the lower corrugated cardboard box and the bottom surface of the upper corrugated cardboard box by fitting the concave and convex portions provided at the place A box has been proposed.

たとえば、特許文献１には、段ボール製の矩形ケースの上部面上に、ケースの側面や上部面に形成した舌片部分を折り重ねて突出部分を形成し、底面には、該上部面上に積み重ねられる他の矩形ケースの上部面上の舌片部分に対応するくり抜き部又は切込み部を設けた段ボールケースが記載されており、特許文献２には、包装箱の天面の外フラップの先端から張り出して一体的に形成されている突部形成片と、該凸部形成片を挿入して掛け止めする係止穴を同じ天面内に形成し、該突部形成片を先端から天面上に折り返して係止穴に挿入して掛け止めして天面上に掛け止め突部を形成し、底面には、他の包装箱の天面の掛け止め突部が嵌まり込む嵌合部を設けた包装箱が記載されている。 For example, in Patent Document 1, a protruding portion is formed by folding a tongue piece portion formed on a side surface or an upper surface of a case on the upper surface of a rectangular case made of corrugated cardboard, and a bottom surface on the upper surface. A corrugated cardboard case provided with a cutout portion or a cutout portion corresponding to a tongue piece portion on the upper surface of another rectangular case to be stacked is described, and Patent Document 2 describes from the front end of the outer flap on the top surface of the packaging box. An overhanging and integrally formed protrusion forming piece and a locking hole for inserting and latching the protrusion forming piece are formed in the same top surface, and the protrusion forming piece is formed on the top surface from the tip. The hook is inserted into the locking hole and latched to form a latching projection on the top surface, and a fitting portion into which the latching projection on the top surface of another packaging box is fitted is formed on the bottom surface. The provided packaging box is described.

また、特許文献３には、段ボール箱本体の端壁の上辺に連設されている天面内フラップ基端部を切り込んで係合片を形成し、該係合片を天面外フラップ面に折り重ね固着すると共に、下方（底面）の外フラップを切り欠いて係合凹部を形成した積みずれ防止箱が記載されており、特許文献４には、段ボール箱の天面外フラップ上に突出する凸部がプレス処理により形成され、底面外フラップにはプレス処理により他の段ボール箱の天面外フラップ上の係合凸部が嵌まり込む凹部が形成されている段ボール箱が記載されている。 Further, Patent Document 3 discloses that an engagement piece is formed by cutting an upper flap inner end connected to the upper side of the end wall of the cardboard box body, and the engagement piece is formed on the outer flap surface. A stacking prevention box is described in which the outer flap on the lower side (bottom surface) is cut out to form an engagement concave portion, and the stacking prevention box is described in Patent Document 4, which protrudes from the top outer flap of the cardboard box. A corrugated cardboard box is described in which a convex portion is formed by pressing, and the bottom outer flap is formed with a concave portion into which an engaging convex portion on the top outer flap of another corrugated cardboard box is fitted by pressing.

上記特許文献１〜３に記載されている段ボール箱におけるスタッキング用の突部は、いずれも段ボール箱の天面に折り重ねられる舌片状部分によって形成されているものであるので、その突出部の高さは段ボールシートの厚さと同一であり、該突部を嵌め込む底面側の凹部の深さも段ボールシートの厚さと同一であるので、商品を収容した状態で突き重ねられた上下の段ボール箱の天面と底面のいずれかが変形して天面と底面の密着状態が崩れるとスタッキング機能が損なわれることが懸念されるものであるし、該スタッキング用と突部の形成するために、該突部を形成する舌片状部分を引き起こして天面上に接着固定するような作業が必要となるものである。 The stacking protrusions in the cardboard boxes described in Patent Documents 1 to 3 are all formed by tongue-like portions that are folded on the top surface of the cardboard box. The height is the same as the thickness of the corrugated cardboard sheet, and the depth of the recess on the bottom surface side into which the protrusion is fitted is also the same as the thickness of the corrugated cardboard sheet. If either the top surface or the bottom surface is deformed and the contact state between the top surface and the bottom surface is lost, the stacking function may be impaired. Therefore, an operation of causing the tongue-like portion forming the portion to be adhered and fixed on the top surface is required.

また、特許文献４の段ボール箱の場合も、段ボール箱の天面外フラップ上にプレス加工で形成されている凸部の高さと底面外フラップにプレス加工で形成されている凹部の深さには限界があり、商品を収容した状態で突き重ねられた上下の段ボール箱の天面と底面のいずれかが変形して天面と底面の密着状態が崩れるとスタッキング機能が損なわれることが懸念されるものである。 Also, in the case of the corrugated cardboard box of Patent Document 4, the height of the convex portion formed by pressing on the outer surface top flap of the corrugated cardboard box and the depth of the concave portion formed by pressing on the outer bottom flap are described. There is a limit, and there is a concern that the stacking function may be impaired if either the top or bottom of the upper and lower corrugated cardboard boxes stacked in the state of containing the product is deformed and the contact state between the top and bottom is broken. Is.

特許文献５には、天面開放型の１ピース型中吊り包装箱の額縁状に形成した２重側壁の縁板部上に直立するスタッキング用の嵌合突起を形成し、さらに底板の左右の端部に該嵌合突起に対応する係止用穴を形成した包装箱が記載されている。この包装箱におけるスタッキング用構造部は、天面開放のトレーの２重側壁の縁板部上にコ字状に直立する突起片を、段積みされる上方のトレーの底板の２重側壁下部に当接する箇所に該コ字状突起片と嵌合するように形成されている係止用孔から２重側壁内に深く差し込んで係止する形式のスタッキング構造であるので、天面フラップを有するＡ式の段ボール箱のスタッキング構造としてそのまま採用することはできない。 In Patent Document 5, a stacking projection for standing upright is formed on an edge plate portion of a double side wall formed in a frame shape of a one-piece type suspended packaging box of an open top surface. A packaging box in which a locking hole corresponding to the fitting protrusion is formed at the end is described. The stacking structure in this packaging box has a protruding piece standing in a U shape on the edge of the double side wall of the tray with the top open, and the bottom of the double side wall of the bottom plate of the upper tray to be stacked. Since it is a stacking structure of a type in which it is inserted deeply into a double side wall from a locking hole formed so as to be fitted to the U-shaped projecting piece at the abutting position, A having a top surface flap It cannot be used as it is as a stacking structure of a corrugated cardboard box.

特許第３８９００８４号公報Japanese Patent No. 3890084 特許第４３４６３０５号公報Japanese Patent No. 4346305 特開２０１１−１４３９６６号公報JP 2011-143966 A 特開２００５−１３２４０７号公報JP 2005-132407 A 実用新案登録第３１６０３６４号公報Utility Model Registration No. 3160364

本発明は、商品を収容して封緘した状態の段ボール箱を段積みして保管したり、段積みして運搬する際に上下の段ボール箱の底面の凹部と天面の凸部を嵌合させる形式の段ボール箱において、段積みした状態での運搬中に上下の段ボール箱の底面の凹部と天面の凸部の間に隙間が生じるような衝撃が段積み段ボール箱に加わった場合にも底面凹部との嵌合状態を維持できる天面突起部を有する段積み用の段ボール箱を提供することを目的とするものである。 The present invention is designed to stack and store corrugated cardboard boxes in which products are stored and sealed, or to fit the concave portions on the bottom and the convex portions on the top surface of the upper and lower corrugated cardboard boxes when stacked and transported. In the case of a type of cardboard box, the bottom of the cardboard box is also subject to an impact that creates a gap between the concave part on the bottom of the upper and lower cardboard boxes and the convex part on the top surface during transportation in the stacked state. It is an object of the present invention to provide a cardboard box for stacking having a top surface projection that can maintain a fitting state with a recess.

本発明の段ボール箱は、一般的な矩形段ボール箱において、相対する一対の側板の上端側の領域内から、上端折り曲げ部を経て、該両側板に折り曲げ部を介して連設されている天面フラップの該折り曲げ部側の領域内まで延びる、該折り曲げ部に直交する２本の平行な直線状の切目線に挟まれた板状部よりなる突起形成部を有することを特徴とする以下の発明を包含する。 The corrugated cardboard box of the present invention is a general rectangular corrugated cardboard box, and is connected to the both side plates via the bent portions from the upper end side region of the pair of side plates facing each other through the bent portions. The invention described below, characterized in that it has a protrusion-forming portion comprising a plate-like portion sandwiched between two parallel straight cut lines orthogonal to the bent portion, which extends into a region on the bent portion side of the flap. Is included.

（１）折り曲げ部（Ｌ６，Ｌ８）を介して天面内フラップ（２ａ、４ａ）と折り曲げ部（Ｌ１０、Ｌ１２）を介して底面内閉鎖板（２ｂ，４ｂ）が連設されている一対の端板（２，４）と、折り曲げ部（Ｌ５、Ｌ７）を介して天面外フラップ（１ａ，３ａ）と折り曲げ部（Ｌ９、Ｌ１１）を介して底面外閉鎖板（１ｂ，３ｂ）が連設されている一対の側板（１，３）とを有し、
一対の側板（１，３）と両天面外フラップ（１ａ，３ａ）間には、両側板（１，３）の上端側領域内の２点（ｐ１、ｐ１）から両天面外フラップ（１ａ，３ａ）の領域内の２点（ｐ２，ｐ２）に至る平行な２本の切目線（Ｚ、Ｚ）に挟まれた帯状の突起部形成部（１ｃ、３ｃ）であって、両側板（１，３）とそれらの天面外フラップ（１ａ、３ａ）とを区分している折り曲げ部（Ｌ５，Ｌ７）を有しておらず、天面外フラップ（１ａ，３ａ）側領域内の前記２本の切目線（ｚ，ｚ）間に該切目線と直交する方向に形成されている折り曲げ部（Ｌ１３）を有していて、該両切目線に直交する折り曲げ部（Ｌ１３）を頂点として天面外フラップ（１ａ，３ａ）面から上方に立ち上がる突起部Ｂを形成する突起部形成部（１ｃ、３ｃ）を少なくとも１箇所ずつ形成されており、
前記両底面外閉鎖板（１ｂ、３ｂ）内には、側板（１，３）との間の折り曲げ部（Ｌ９，Ｌ１１）の近傍領域内に、他の同型の矩形段ボール箱の天面における突起形成部によって形成される突起部Ｂと嵌合する切欠き部よりなる嵌合凹部（１ｄ、３ｄ）が形成されていることを特徴とする段ボール箱。 (1) A pair of top surface in-plane flaps (2a, 4a) via bent portions (L6, L8) and bottom inner closure plates (2b, 4b) via bent portions (L10, L12). The bottom outer closure plates (1b, 3b) are connected via the end plates (2, 4), the top outer flaps (1a, 3a) and the bent portions (L9, L11) via the bent portions (L5, L7). A pair of side plates (1, 3) provided,
Between the pair of side plates (1, 3) and the outer top surface flaps (1a, 3a), both upper surface outer flaps (p1, p1) in the upper end side region of both side plates (1, 3) ( 1a, 3a) is a band-like protrusion forming portion (1c, 3c) sandwiched between two parallel cut lines (Z, Z) reaching two points (p2, p2) in the region of 1a, 3a) (1, 3) and the outer-side flaps (1a, 3a) are not provided with bent portions (L5, L7), and the upper-side flaps (1a, 3a) side region It has a bent part (L13) formed in the direction perpendicular to the cut line between the two cut lines (z, z), and the bent part (L13) orthogonal to the two cut lines is the apex. At least a protrusion forming portion (1c, 3c) that forms a protrusion B rising upward from the surface of the top surface outer flap (1a, 3a) Are formed by point,
Projections on the top surface of other rectangular cardboard boxes of the same type in the area near the bent portions (L9, L11) between the bottom bottom outer closing plates (1b, 3b) and the side plates (1, 3). A corrugated cardboard box, characterized in that fitting recesses (1d, 3d) comprising notches to be fitted with the projections B formed by the forming part are formed.

（２）前記２本の平行な切目線（ｚ，ｚは、前記両側板（１，３）と両天面外フラップ（１ａ，３ａ）を区分している折り曲げ部（Ｌ５，Ｌ７）より両側板側（１，３）の領域内の２点（ｐ１，ｐ１）までの切目線部分の長さより、折り曲げ部（Ｌ５，Ｌ７）より両天面外フラップ（１ａ，３ａ）領域内の２点（ｐ２，ｐ２）までの切目線部分の長さの方が長く設定されていることを特徴とする（１）項に記載の段ボール箱。 (2) The two parallel score lines (z and z are on both sides of the bent portions (L5 and L7) separating the both side plates (1, 3) and the top outer flaps (1a, 3a)). From the length of the cut line part up to two points (p1, p1) in the area on the plate side (1, 3), two points in the both outer top flaps (1a, 3a) area from the bent parts (L5, L7) The cardboard box according to item (1), wherein the length of the cut line portion up to (p2, p2) is set longer.

（３）前記２本の平行な切目線（ｚ，ｚ）は、前記両側板（１，３）と両天面外フラップ（１ａ，３ａ）を区分している折り曲げ部（Ｌ５，Ｌ７）より両側板（１，３）側の領域内の２点（ｐ１，ｐ１）までの切目線部分の長さより、折り曲げ部（Ｌ５，Ｌ７）より両天面外フラップ（１ａ，３ａ）領域内の２点（ｐ２，ｐ２）までの切目線部分の長さの方が２倍以上長く設定されていることを特徴とする（１）項又は（２）項に記載の段ボール箱。 (3) The two parallel score lines (z, z) are from the bent portions (L5, L7) separating the both side plates (1, 3) and the outer top flaps (1a, 3a). Based on the length of the cut line portion up to two points (p1, p1) in the region on the side plate (1, 3) side, 2 in the both top surface flap (1a, 3a) region from the bent portions (L5, L7). The cardboard box according to item (1) or (2), wherein the length of the score line part up to the point (p2, p2) is set to be twice or more longer.

（４）前記両天面外フラップ（１ａ，３ａ）側の領域内における２本の平行な切目線（ｚ，ｚ）の両端部の２点（ｐ２、ｐ２）間を結んで折り曲げ線（Ｌ４）が形成されていることを特徴とする（１）項〜（３）項のいずれか１項に記載の段ボール箱。 (4) A fold line (L4) connecting two points (p2, p2) at both ends of two parallel score lines (z, z) in the region on the both-sides-outside flaps (1a, 3a) side. ) Is formed. The cardboard box according to any one of the items (1) to (3).

（５）前記突起部Ｂは、両側板（１，３）と両天面外フラップ（１ａ，３ａ）を区分する折り曲げ部（Ｌ５，Ｌ７）から両天面外フラップ（１ａ，３ａ）を天面に折り曲げた際に、前記突起形成部（１ｃ，３ｃ）が前記２本の切目線（ｚ，ｚ）と直交する方向の折り曲げ部（Ｌ１３）を頂部として山形に天面外フラップ（１ａ，３ａ）面から突出する突起部であることを特徴とする（１）項〜（４）項のいずれか１項に記載の段ボール箱。 (5) The projecting portion B has the top and bottom flaps (1a and 3a) from the bent portions (L5 and L7) that divide the side plates (1, 3) and the top and bottom flaps (1a, 3a). When the surface is bent into a plane, the protrusion forming portion (1c, 3c) is formed into a mountain shape with the bent portion (L13) in a direction perpendicular to the two cut lines (z, z) as a top, and the outer top surface flap (1a, 3c) 3a) The cardboard box according to any one of items (1) to (4), wherein the cardboard box is a protrusion protruding from the surface.

本発明の段積み用段ボール箱は、スタッキング用突起部を側板部分と天面外フラップ部分とによって形成できるので、たとえば、一般的な矩形段ボール箱であれば、通常幅の段ボール原反によって製造することができる。 The stacking corrugated cardboard box of the present invention can be formed by a normal width corrugated cardboard for a general rectangular corrugated cardboard box, for example, because a stacking projection can be formed by a side plate portion and a top surface outer flap portion. be able to.

また、スタッキング用突起部は、両側板と天面外フラップを区分する折り曲げ部から天面外フラップを天面に折り曲げて天面を閉鎖する作業時に自動的に天面外フラップ面側に立ち上がるので、スタッキング用突起部を形成するための作業が不要である。 In addition, the stacking projection part automatically rises to the outer flap surface side when working to close the top surface by folding the outer top flap to the top surface from the bent portion that separates both side plates and the outer top flap. The work for forming the stacking projection is not necessary.

さらに、天面外フラップ面上に立ち上がったスタッキング用突起部は、その上に積み重ねられる他の段ボール箱の底面閉鎖板に形成されている凹部の深さ、すなわち、段ボール原反の厚さよりも高く立ち上がるので、底面閉鎖板の凹部と嵌合した状態では山形の頂部が押し潰されて突起部の側板側が外側に膨れた状態に変形するが、側板側の突起部内には折り曲げ部がないために、撓んだ状態の側板側に弾性的な復元力が生じて、積み重ねられた段ボール箱の底面が天面から浮き上がった状態となって押し潰し圧力が開放されるに伴って山形の頂部が上方に立ち上がるため、底面の凹部との嵌合状態が外れることが防止される、という効果を奏する。 Furthermore, the stacking protrusions that have risen on the flap surface outside the top surface are higher than the depth of the recesses formed on the bottom closing plate of the other cardboard boxes stacked thereon, that is, the thickness of the original corrugated board. Since it rises, the top of the chevron is crushed in the state fitted with the recess of the bottom closing plate, and the side plate side of the projection part is deformed to the outside, but there is no bent part in the side plate side projection part An elastic restoring force is generated on the side plate in the bent state, and the bottom of the stacked cardboard boxes is lifted from the top surface, and the crest is raised as the crushing pressure is released. Therefore, it is possible to prevent the fitting state with the concave portion on the bottom surface from being removed.

本発明の段積み用段ボール箱の展開図（ブランクシート図）である。It is an expanded view (blank sheet figure) of the cardboard box for stacking of this invention. 本発明の段積み用段ボール箱の組み立て完成時の斜視図である。It is a perspective view at the time of the assembly completion of the cardboard box for stacking of this invention. 本発明の段積み用段ボール箱を段積みする場合の状態を示す図である。It is a figure which shows the state in the case of stacking the cardboard boxes for stacking of this invention.

本発明の段積み用段ボール箱の具体的な内容を添付の図面を参照して説明する。
図１は、本発明の一実施例としてのＡ式段ボール箱のブランクシートＡである。図１に示すように、本発明の段積み用段ボール箱は、一対の側板１，３と一対の端板２，４と綴じ代５とが折り曲げ部Ｌ１〜Ｌ４を介して連設されている。 The specific contents of the cardboard boxes for stacking according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a blank sheet A of an A-type cardboard box as one embodiment of the present invention. As shown in FIG. 1, the cardboard box for stacking according to the present invention includes a pair of side plates 1, 3, a pair of end plates 2, 4, and a binding margin 5 that are connected via bent portions L <b> 1 to L <b> 4. .

側板１には、折り曲げ部Ｌ５を介して天面外フラップ１ａが連設され、折り曲げ部Ｌ９を介して底面外閉鎖板１ｂが連設されており、側板３には、折り曲げ部Ｌ７を介して天面外フラップ３ａが連設され、折り曲げ部Ｌ１１を介して底面外閉鎖板３ｂが連設されている。
また、端板２には、折り曲げ部Ｌ６を介して天面内フラップ２ａが連設され、折り曲げ部Ｌ１０を介して底面内閉鎖板２ｂが連設されており、端板４には、折り曲げ部Ｌ８を介して天面内フラップ４ａが連設され、折り曲げ部Ｌ１２を介して底面内閉鎖板４ｂが連設されている。 The side plate 1 is provided with a top outer flap 1a through a bent portion L5, and a bottom outer closing plate 1b is provided through a bent portion L9. The side plate 3 is provided with a bent portion L7. A top surface outer flap 3a is continuously provided, and a bottom surface outer closing plate 3b is continuously provided via a bent portion L11.
Further, the end plate 2 is connected to the top surface flap 2a via the bent portion L6, and the bottom surface inner closing plate 2b is connected to the end plate 4 via the bent portion L10. The top surface flap 4a is continuously provided via L8, and the bottom surface closing plate 4b is continuously provided via the bent portion L12.

側板１と天面外フラップ１ａには、側板１の天面外フラップ１ａとの境界である折り曲げ部Ｌ５の近傍における側板１側の領域内の２点（ｐ１，ｐ１）から、天面外フラップ１ａ内の２点（ｐ２，ｐ２）に至る平行な２本の切目線（ｚ，ｚ）が形成されていて、該２本の切目線間に挟まれた帯状部からなる突起部形成部１ｃが２箇所形成されている。
同様に、側板３と天面外フラップ３ａには、側板３の天面外フラップ３ａとの境界である折り曲げ部Ｌ７の近傍における側板３側の領域内の２点（ｐ１，ｐ１）から、天面外フラップ３ａ内の２点（ｐ２，ｐ２）に至る平行な２本の切目線（ｚ，ｚ）が形成されていて、該２本の切目線間に挟まれた帯状部からなる突起部形成部３ｃが２箇所形成されている。 The side plate 1 and the top surface outer flap 1a are separated from two points (p1, p1) in the region on the side plate 1 side in the vicinity of the bent portion L5 that is the boundary between the side plate 1 and the top surface outer flap 1a. Two parallel score lines (z, z) reaching two points (p2, p2) in 1a are formed, and a protrusion forming portion 1c composed of a belt-shaped portion sandwiched between the two score lines Are formed in two places.
Similarly, the side plate 3 and the top surface flap 3a are separated from two points (p1, p1) in the region on the side plate 3 side in the vicinity of the bent portion L7 that is the boundary between the side plate 3 and the top surface flap 3a. Two parallel cut lines (z, z) reaching two points (p2, p2) in the out-of-plane flap 3a are formed, and the protrusion is formed of a band-like portion sandwiched between the two cut lines Two formation portions 3c are formed.

上記突起部形成部１ｃ内には、側板１と天面外フラップ１ａを区分している折り曲げ部Ｌ５は形成されておらず、天面外フラップ１ａ側における２本の切目線間に挟まれた帯状部に、該２本の平行な切目線（ｚ，ｚ）と直交する方向に折り曲げ部Ｌ１３が形成されており、天面外フラップ１ａ内の２本の切目線（ｚ，ｚ）の端部Ｐ２，Ｐ２間には折り曲げ部Ｌ１４が形成されている。
同様に、突起部形成部３ｃ内には、側板３と天面外フラップ３ａを区分している折り曲げ部Ｌ７は形成されておらず、天面外フラップ３ａ側における２本の切目線間に挟まれた帯状部に、該２本の平行な切目線（ｚ，ｚ）と直交する方向に折り曲げ部Ｌ１３が形成されており、天面外フラップ３ａ内の２本の切目線（ｚ，ｚ）の端部ｐ２，ｐ２間には折り曲げ部Ｌ１４が形成されている。 A bent portion L5 that separates the side plate 1 and the outer top flap 1a is not formed in the projection forming portion 1c, and is sandwiched between two cut lines on the outer top flap 1a side. A bent portion L13 is formed in the band-like portion in a direction perpendicular to the two parallel score lines (z, z), and the ends of the two score lines (z, z) in the outer surface top flap 1a. A bent portion L14 is formed between the portions P2 and P2.
Similarly, the bent portion L7 that separates the side plate 3 and the outer top flap 3a is not formed in the projection forming portion 3c, and is sandwiched between the two cut lines on the outer top flap 3a side. A bent portion L13 is formed in a direction perpendicular to the two parallel score lines (z, z) in the strip-shaped portion, and the two score lines (z, z) in the outer top surface flap 3a. A bent portion L14 is formed between the end portions p2 and p2.

上記突起部形成部１ｃにおける折り曲げ部Ｌ１３は、２本の切目線（ｚ，ｚ）の全長さ（ｐ１−ｐ２）の中間部よりも天面外フラップ１ａ側の領域内において突起部形成部１ｃ内に形成されていることが好ましく、２本の切目線（ｚ，ｚ）の全長さ（ｐ１−ｐ２）を３等分した場合の天面外フラップ（１ａ）内の端部（ｐ２）側の位置において切目線ｚ，ｚ間に設けられていることが好ましい。
同様に、突起部形成部３ｃにおける折り曲げ部Ｌ１３は、２本の切目線（ｚ，ｚ）の全長さ（ｐ１−ｐ２）の中間部よりも天面外フラップ１ａ側の領域内において突起部形成部３ｃ内に形成されていることが好ましく、２本の切目線（ｚ，ｚ）の全長さ（ｐ１−ｐ２）を３等分した場合の天面外フラップ（３ａ）内の端部（ｐ２）側の位置において切目線Ｚ，Ｚ間に設けられていることが好ましい。 The bent portion L13 in the protruding portion forming portion 1c has a protruding portion forming portion 1c in a region closer to the outer top surface flap 1a than an intermediate portion of the total length (p1-p2) of the two cut lines (z, z). Preferably, it is formed in the end (p2) side in the outer top flap (1a) when the total length (p1-p2) of the two cut lines (z, z) is divided into three equal parts. It is preferable that it is provided between the score lines z and z at the position.
Similarly, the bent portion L13 in the protruding portion forming portion 3c forms a protruding portion in a region on the outer surface top flap 1a side with respect to the intermediate portion of the total length (p1-p2) of the two cut lines (z, z). It is preferable to be formed in the portion 3c, and the end portion (p2 in the outer top flap (3a) when the total length (p1-p2) of the two cut lines (z, z) is divided into three equal parts. It is preferable that it is provided between the cut lines Z and Z at the position on the) side.

上記のように、突起部形成部１ｃ内及び突起部形成部３ｃ内の双方に形成される折り曲げ部Ｌ１３の位置を天面外フラップ側の突起部形成部内とすることによって、図２及び図３に示されているように、天面外フラップを側板との間の折り曲げ線から天面側に折り曲げて天面を閉鎖する作業時に、同時且つ自動的に突起部形成部１ｃ、３ｃが上記折り曲げ部Ｌ１３において上方に折れ曲がって形成される山形の突起部Ｂの頂点となる該折り曲げ部Ｌ１３部分を確実に天面外フラップ面上に位置させることができ、スタッキング用の突起部Ｂを天面外フラップ１ａ，３ａの各面上に形成することができる。 As described above, by setting the position of the bent portion L13 formed in both the protrusion forming portion 1c and the protrusion forming portion 3c to be in the protrusion forming portion on the outer surface top flap side, FIG. 2 and FIG. As shown in Fig. 4, the projection forming portions 1c and 3c are bent at the same time and automatically when the outer surface of the top surface flap is folded from the fold line between the side plate and the top surface to close the top surface. The bent portion L13, which is the apex of the mountain-shaped protrusion B formed by bending upward at the portion L13, can be reliably positioned on the outer top flap surface, and the stacking protrusion B can be placed outside the top surface. It can be formed on each surface of the flaps 1a, 3a.

また、上記突起部形成部１ｃ、３ｃ内に形成する折り曲げ部Ｌ１３を天面外フラップ側の突起部形成部内の位置とすることによって、突起部形成部１ｃ、３ｃが上記折り曲げ部Ｌ１３において上方に折れ曲がって形成される山形の突起部Ｂの高さを、該突起部Ｂが嵌合する同型の他の段積み用段ボール箱の底面の底面外閉鎖板を切り欠いて形成されている嵌合凹部（１ｄ、３ｄ）の深さ、すなわち、段ボール原反の厚さ、よりも大きくなるように設定することができる。 Further, by setting the bent portion L13 formed in the protruding portion forming portions 1c and 3c to a position in the protruding portion forming portion on the flap side outside the top surface, the protruding portion forming portions 1c and 3c are moved upward in the bent portion L13. Fitting recess formed by cutting out the outer bottom closing plate of the bottom surface of another corrugated cardboard box of the same type to which the projection B fits the height of the angled projection B formed by bending The depth can be set to be greater than the depth of (1d, 3d), that is, the thickness of the original corrugated board.

このような大きな高さの突起部Ｂを有する天面に他の同型の段積み用段ボール箱を図３に示すように段積みして、天面の突起部Ｂを他の段ボール箱の底面の嵌合凹部に嵌合させた場合、図示されていないが、突起部Ｂは段積みされる上部段ボール箱の底面の嵌合凹部（１ｄ、３ｄ）の内面に頂部が当接して全体が押し潰されることとなり、頂部となっている折り曲げ部Ｌ１３から側板１，３側の面が外側に膨れるように変形する。このように突起部Ｂが嵌合凹部（１ｄ、３ｄ）と嵌合すると突起部Ｂと嵌合凹部（１ｄ、３ｄ）の内面との間が滑りにくくなって嵌合状態が外れ難くなる。 As shown in FIG. 3, another corrugated cardboard box of the same type is stacked on the top surface having such a large height projection B, and the top projection B is formed on the bottom surface of the other cardboard box. When fitted in the fitting recess, although not shown in the figure, the protrusion B is crushed because the top abuts against the inner surface of the fitting recess (1d, 3d) on the bottom surface of the upper cardboard box to be stacked. Thus, the surface of the side plates 1 and 3 is deformed so as to bulge outward from the bent portion L13 which is the top. Thus, when the projection B fits into the fitting recess (1d, 3d), the projection B and the inner surface of the fitting recess (1d, 3d) are less likely to slip, and the fitted state is difficult to come off.

また、段積み状態で運搬されている途中等において、上下の段ボール間に隙間が生じるような衝撃が加わった場合であっても、折り曲げ部Ｌ１３から側板１，３側の面が外側に膨れるように変形している状態の突起部Ｂは、側板１，３側の突起部内に折り曲げ部がないために、頂部にかかる圧力が弱まるにつれて側板１，３側の膨れ状態が弾性的に復元するので、突起部Ｂの頂部は上側の段ボールの底面の嵌合凹部の内面から離れることがなく、したがって、元の突起部Ｂの高さを大きく超えるような隙間が上下の段ボール間に発生しない限りスタッキング機能が損なわれることはない。 In addition, even when an impact is generated such that a gap is generated between the upper and lower corrugated boards during transportation in a stacked state, the surface on the side plates 1 and 3 side swells outward from the bent portion L13. Since the protruding portion B in the deformed state has no bent portion in the protruding portions on the side plates 1 and 3 side, the swollen state on the side plates 1 and 3 side is elastically restored as the pressure applied to the top is weakened. The top of the protrusion B is not separated from the inner surface of the fitting recess on the bottom surface of the upper corrugated cardboard, and therefore stacking is performed unless a gap that greatly exceeds the height of the original protrusion B is generated between the upper and lower corrugated boards. There is no loss of functionality.

前記したように、突起部形成部１ｃ内には、側板１と天面外フラップ１ａを区分している折り曲げ部Ｌ５は形成されておらず、天面外フラップ１ａ側における２本の切目線間に挟まれた帯状部に、該２本の平行な切目線（ｚ，ｚ）と直交する方向に折り曲げ部Ｌ１３が形成されており、天面外フラップ１ａ内の２本の切目線（ｚ，ｚ）の端部Ｐ２，Ｐ２間には折り曲げ部Ｌ１４が形成されている。同様に、突起部形成部３ｃ内にも、側板３と天面外フラップ３ａを区分している折り曲げ部Ｌ７は形成されておらず、天面外フラップ３ａ側における２本の切目線間に挟まれた帯状部に、該２本の平行な切目線（ｚ，ｚ）と直交する方向に折り曲げ部Ｌ１３が形成されており、天面外フラップ３ａ内の２本の切目線（ｚ，ｚ）の端部Ｐ２，Ｐ２間には折り曲げ部Ｌ１４が形成されている。 As described above, the bent portion L5 that separates the side plate 1 and the top outer flap 1a is not formed in the protrusion forming portion 1c, and the gap between the two cut lines on the outer top flap 1a side is not formed. A bent portion L13 is formed in the band-shaped portion sandwiched between the two parallel cut lines (z, z) in a direction perpendicular to the two parallel cut lines (z, z), and the two cut lines (z, A bent portion L14 is formed between the end portions P2 and P2 of z). Similarly, the bent portion L7 that separates the side plate 3 and the outer top flap 3a is not formed in the protrusion forming portion 3c, and is sandwiched between two cut lines on the outer top flap 3a side. A bent portion L13 is formed in a direction perpendicular to the two parallel score lines (z, z) in the strip-shaped portion, and the two score lines (z, z) in the outer top surface flap 3a. A bent portion L14 is formed between the end portions P2 and P2.

突起部形成部１ｃ、３ｃ上記のように側板１，３内から天面外フラップ１ａ，３ａ内にかけて形成されていることによって、段ボール箱の組み立て時に、天面外フラップ１ａ，３ａを天面内フラップ２ａ，４ａ面に折り重ねて天面を閉鎖する作業を行うと、突起部形成部１ｃ、３ｃは、側板１、３側に折り曲げ部が設けられていないために、折り曲げ部Ｌ１３において折れ曲がって上方に押し上げられた状態となり、突起部Ｂが自動的に形成されることとなる。 Protruding portion forming portion 1c, 3c As described above, it is formed from the inside of the side plates 1, 3 to the outside top surface flaps 1a, 3a, so that the outside top surface flaps 1a, 3a are inside the top surface when the cardboard box is assembled. When the top surface is closed by folding on the flaps 2a and 4a, the protruding portion forming portions 1c and 3c are bent at the bent portion L13 because the bent portions are not provided on the side plates 1 and 3 side. The protrusion B is automatically formed by being pushed upward.

図１のブランクシートから本発明のスタッキング用段ボール箱を組み立てる作業工程は、通常のＡ式段ボール箱の組立作業と同様である。すなわち、折り曲げ部Ｌ１〜Ｌ５において側板１、端板２、側板３、端板４を同一方向に折り曲げ、側板１の側縁部の綴じ代５を相対する端板４の側縁部に接合して筒状胴部を形成し、次いで、端板２，４の底面内閉鎖板２ｂ，４ｂと側板１，３の底面外閉鎖板１ｂ、３ｂを折り重ね、接合して底面を閉鎖する。
商品を収容したのち、天面内フラップ２ａ，４ａ面に天面外フラップ１ａ，３ａを折り重ね、接合して天面外フラップ１ａ，３ａ上に自動的に突起部Ｂが立ち上がっている図２に示す状態の商品収容段ボール箱とする。 The work process of assembling the stacking cardboard box of the present invention from the blank sheet of FIG. 1 is the same as the assembly work of a normal A-type cardboard box. That is, the side plate 1, the end plate 2, the side plate 3, and the end plate 4 are bent in the same direction at the bent portions L1 to L5, and the binding margin 5 of the side edge portion of the side plate 1 is joined to the side edge portion of the opposite end plate 4. Then, the cylindrical body portion is formed, and then the bottom bottom closing plates 2b, 4b of the end plates 2, 4 and the bottom bottom closing plates 1b, 3b of the side plates 1, 3 are folded and joined to close the bottom surface.
FIG. 2 shows that the projection B is automatically raised on the outer top flaps 1a and 3a after the product is stored, by folding and joining the outer top flaps 1a and 3a to the inner top flaps 2a and 4a. The product storage cardboard box in the state shown in FIG.

本発明の段積み用段ボール箱を段積み状態で運搬する場合、図３に示すように、下側の段ボール箱の天面から上方に立ち上がっている突起部Ｂと、上側の段ボール箱の底面に形成されている凹部１ｄ、３ｄとを嵌合させた状態で複数段積み重ねられる。このように積み重ねられている段ボール箱は、上側の段ボール箱の重みで上下の段ボール箱の底面と天面の係合状態が維持されることとなる。 When transporting the cardboard boxes for stacking according to the present invention in a stacked state, as shown in FIG. 3, the protrusion B rising upward from the top surface of the lower cardboard box and the bottom surface of the upper cardboard box. A plurality of stages are stacked in a state where the formed recesses 1d and 3d are fitted. The cardboard boxes stacked in this way maintain the engagement state between the bottom and top surfaces of the upper and lower cardboard boxes with the weight of the upper cardboard box.

１，３：側板
１ａ，３ａ：天面外フラップ
１ｂ，３ｂ：底面外閉鎖板
１ｃ，３ｃ：突起部形成部
１ｄ，３ｄ：嵌合凹部
２，４：端板
２ａ，４ａ：天面内フラップ
２ｂ，４ｂ：底面内閉鎖板
Ｌ１〜Ｌ１４：折り曲げ部
ｐ１，ｐ２：切目線端部の２点
ｚ：切目線
Ａ：ブランク（スタッキング用段ボール箱）
Ｂ：突起部 DESCRIPTION OF SYMBOLS 1,3: Side plate 1a, 3a: Top surface outer flap 1b, 3b: Bottom outer surface closing plate 1c, 3c: Projection part formation part 1d, 3d: Fitting recessed part 2, 4: End plate 2a, 4a: Top surface flap 2b, 4b: Closing plates L1 to L14 in the bottom surface: bent portions p1, p2: two points at the end of the cut line z: cut line A: blank (stacking cardboard box)
B: Projection

Claims

A pair of end plates in which a top surface inner flap is connected via a bent portion and a bottom inner surface closing plate is provided via a bent portion; And a pair of side plates connected to each other,
Between the pair of side plates and the outer top flaps, a band-like shape sandwiched between two parallel cut lines extending from two points in the upper end side region of both side plates to two points in the upper outer flap region. It is a projecting portion forming portion that does not have a bent portion that separates both side plates and their outer top flaps, and is formed between the two cut lines in the outer top flap side region. A projecting portion forming portion that has a bent portion formed in a direction orthogonal to the line of sight and forms a protruding portion B that rises upward from the outer surface of the top surface with the bent portion orthogonal to the two cut lines as a vertex; At least one place is formed,
In the both outer bottom closing plates, a notch that fits into a protrusion B formed by a protrusion forming portion on the top surface of another rectangular cardboard box of the same type in a region near the bent portion between the side plates. A cardboard box characterized in that a fitting recess made of a portion is formed.

The two parallel score lines are determined by the length of the score line part from the folded part that separates the both side plates and the top outer flaps to two points in the region on the both side plates. The corrugated cardboard box according to claim 1, wherein the length of the cut line portion up to two points in the out-of-plane flap region is set longer.

The two parallel score lines are longer than the folding part by the length of the score line part up to two points in the area on the side plate side from the folding part that separates the both side plates and the top outer flaps. The cardboard box according to claim 1 or 2, wherein the length of the cut line portion up to two points in the flap area outside the top surface is set to be twice or more longer.

4. The fold line is formed by connecting two points at both ends of two parallel score lines in the area on the both outer side flaps side. 5. Cardboard box as described in.

The protrusion is bent in a direction in which the protrusion forming part is orthogonal to the two cut lines when the both outer top flaps are bent to the top from the bent part that divides both side plates and the two outer flaps. The corrugated cardboard box according to any one of claims 1 to 4, wherein the corrugated cardboard box is a protrusion that protrudes from the top outer flap surface in a mountain shape with the portion as a top.