JP4683444B2

JP4683444B2 - Cardboard packaging containers

Info

Publication number: JP4683444B2
Application number: JP2000317377A
Authority: JP
Inventors: 哲也木村
Original assignee: 小泉産業株式会社
Priority date: 2000-10-18
Filing date: 2000-10-18
Publication date: 2011-05-18
Anticipated expiration: 2020-10-18
Also published as: JP2002120828A

Description

【０００１】
【発明の属する技術分野】
この発明は、電気製品や家庭日用製品等を収納するダンボール製の包装用容器、特に、使用後廃棄処分や再利用のため回収する際には、カッターを使用することなく、また、大きな力を加えることなく簡単に平面シート状に展開することの出来るダンボール製包装用容器に関する。
【０００２】
【従来の技術】
工場で生産した電気製品や家庭日用品等その他の製品（商品）を、販売店や倉庫等へ運搬する場合、これらの製品を包装用容器に梱包して出荷するが、包装用容器としてはダンボール製の包装用容器が多く用いられる。そして製品を取り出した後の使用済のダンボール箱は廃棄するか、資源の有効利用のため回収され、再利用されるが、箱状のままでは嵩張るので、通常は、包装用容器の一部を破るか、或いは折り目にカッター等を入れて破断し、平面シート状にしてから処分する。
【０００３】
従来から使用されるダンボール製包装用容器は、商品を取り出すときには、取り出しやすく、そして廃棄処分や回収の際には平面シート状に容易に展開できるように工夫されたものが提案されている。
例えば、側壁（１ａ，１ｂ，１ｃ，１ｄ）と底部（符号無し）から成る収納部１と、第１の蓋体２と、第２の蓋体３と、からなる包装容器であって、前記収納部１に商品を入れてから第１の蓋体２で覆い、且つ更にミシン線５を設けた第２の蓋体３で第１の蓋体２を覆い、開封時に第２の蓋体３のミシン線５を破るだけで商品を取り出すと共に、簡単に平面シート状に展開できるようにした包装容器（実開昭４８−３９２３６号）、或いは、箱蓋部５の対向するふたつの折曲端をおのおの底辺として互いに向かい合うふたつの台形状のミシン目（２１，２２）を前記箱蓋部５に形成し、少なくともこのふたつの台形状ミシン目の上辺間に延びるテイアーテープ２３を前記箱蓋部５の内壁に貼着するとともに、前記上辺部分の各々に、前記テイアーテープ２３を引き起こすための切溝２５を形成し、該テイアーテープ２３を引き起こすことにより箱蓋部５を破り、次いで前記ミシン目（２１，２２）を破り、簡単に平面シート状に展開できるようにしたもの（実開昭５１−１４１６２８号）、或いはダンボール箱２０を上蓋２１と下蓋２４とで構成し、下蓋２４の側壁２６と該側壁２６につらなり、上蓋の端壁２３と接合させる接合辺２７との折り目に縦方向に開封線３１を設けたもの（実開平１−８５２２０号）等が提案されている。なお、包装用容器を開封する際、開封しやすいように、容器の側壁の一部に持ち上げタブ３０を設け、該タブ３０を押して一部を破断させ、開封するように構成したものも提案されている（特開昭５２−１２０８４号）。
【発明が解決しようとする課題】
【０００４】
従来のダンボール製包装用容器は、開封後の箱体を平面シート状にする場合折り目を破断するのにかなりの力を要し、或いはカッターを必要とする。また、上記するように、最近の包装用容器は、使用後廃棄処分したり、再利用する場合でも、運搬しやすくするため、箱体から平面シート状となるように容易に縮小梱包できるようになっている。しかし、包装用容器の天蓋のような平面部に破断用のミシン目状の切込みを設けると、上に他の物体が載った場合、容易にこれらの物体の重さで破断しやすい。また、開封時ミシン目に沿って破断するとは限らず、このように、ミシン目に沿って破断しないと、逆に開封しにくくなる。更に、折り目に沿って縦方向に破断用の開封線を設ける場合には、１箇所設けるだけでは開封時容易に開封しにくいので、４箇所とも設けなければならない。また、開封時、４箇所ともミシン目にそって破断しなければならないので、開封作業がしにくいという問題がある。
【０００５】
この発明は、上記する課題に対処するためになされたものであり、通常の商品の梱包時あるいは運搬時には容易に破断せず、開封時に少し大きな力を加えると破断し、余分に大きな力を加えたり、カッター等の道具を使用することなく、開封することが可能で、しかも後の廃棄や再利用時に際して容易に平面シート状に展開することのできる包装用容器を提供することを目的としている。
【課題を解決するための手段】
【０００６】
即ち、この発明は、上記する課題を解決するために、請求項１に記載の発明は、天蓋（１０）と底板（１１）と側壁（１２、１３、１４、２２、２５、２６）とで構成されるダンボール製包装用容器において、
該ダンボール製包装容器は、外箱部（１）と内箱部（２）とより成り、前記天蓋（１０）と側壁（１２）又は底板（１１）と側壁（１２）との境界の横方向の折り曲げ線（５）に沿って、一定以上の力で破断する破断部（３）を設け、
該破断部（３）両端に位置する前記内箱部（２）の両側壁部（２５、２６）が、前記外箱部（１）の両端に位置する２つの側壁部（１３、１４）の間にそれぞれ嵌め込んで組み立てられ、前記破断部（３）を破断することにより平面シート状に展開可能にしたことを特徴とするダンボール製包装容器。
【０００７】
また、請求項２に記載の発明は、前記破断部（３）は、所定のピッチで切込を入れた破断部であることを特徴としている。
【０００８】
また、請求項３に記載の発明は、前記天蓋（１０）と側壁（２２）又は底板（１１）と側壁（２２）との境界の折り曲げ線（５）に沿って設けた破断部（３）の途中に、該破断部（３）を破断する力よりも弱い力で破断する破断部（７）を設けた押しタブ（６）を形成したことを特徴としている。
【発明の実施の形態】
【０００９】
以下、この発明の具体的実施の形態について図面を参照しながら説明する。
図１は、この発明のダンボール製包装用容器の全体斜視図、図２は、この包装用容器の平面状にした展開図である。
この実施の形態のダンボール製包装用容器は、外箱部１と、内箱部２とより成り、これらの外箱部１と内箱部２とは、所定のピッチで切込４を入れた破断部３を介して連接され、折り曲げ線５で折って組み立てるようになっている。即ち、この破断部３の切込４は、後述するように、天蓋部（１０）と側壁部（２２）との境界に設けた横方向の折り曲げ線５に沿って設けてある。また、破断部３の途中には、破断部部７を設けた半円状の押しタブ６が形成されている。
【００１０】
前記ダンボール製包装用容器の外箱部１は、図２に示すように、第１天蓋部１０と、第１底板部１１と、これら第１天蓋部１０と第１底板部１１とをつなぐ第１側壁部１２と、該第１側壁部１２の両側に連設した第２側壁部１３及び第３側壁部１４と、で構成されている。更に、前記第２側壁１３には、第２天蓋部１５と折り曲げ線８を入れた第５側壁部１６が、前記第３側壁１４には、第３天蓋部１７と第６側壁部１８が、それぞれ設けられている。
【００１１】
次に、前記ダンボール製包装用容器の内箱部２は、図２に示すように、第２底板２１と、第４側壁２２と、前記第２底板部２１の両側に連設した第３底板部２３と、第４底板部２４と、前記第４側壁２２の両側に連設した第７側壁部２５及び第８側壁部２６と、で構成されている。この場合、前記第３底板部２３と第４底板部２４とは、組立状態では、折り曲げられて前記第１底板部１１と第２底板２１との間に積層される。これら第１底板部１１と第２底板部２１の間に層状に配置される第３底板部２３と第４底板部２４は、第１底板１１及び第２底板部２１と相まって中にいれた商品のクッションの役目を果たすものである。
【００１２】
図３は、この外箱部１と内箱部２の組み立て途中の斜視図である。
上記構成から成るこのダンボール製包装用容器においては、組立手順はつぎのようにして行う。尚、このダンボール製包装用容器の構成を分かりやすくするため、外箱部１と内箱部２とは、破断部３で分離した状態で図示して説明する。即ち、外箱部１は、第１底板部１１を内側へ折り曲げ、第２側壁部１３に連設した第２天蓋部１５と第５側壁部１６、及び第第３側壁部１４に連設した第３天蓋部１７と第６側壁部１８も内側へ折り曲げ、それぞれ第１天蓋部１０と第１底板部１１の内側へ折り曲げる。
【００１３】
また、内箱部２は、第２底板部２１の両側に連設した第３底板部２３と第４底板部２４とを外側へ折り曲げ、第４側壁部２２の両側に連設した第７側壁部２５と第８側壁部２６は、内側へ折り曲げる。そして、第７側壁部２５は、第２側壁部１３と第５側壁部１６との間に入るように、第８側壁部２６は、第３側壁部１４と第６側壁部１８との間に入るように、また、第３底板部２３と第４底板部２４は、前記第１底板部１１と第２底板部２１との間に位置するように、それぞれ嵌め入れる。
【００１４】
図１〜図２に示すように、第１天蓋部１０と、第４側壁部２２との間の折り曲げ線５に沿っては、一定のピッチで切込４を入れた破断部３と、破断部７を設けた半円状の押しタブ６が形成されている。そして、前記押しタブ６は、第１天蓋部１０側に、設けてあるが、この押しタブ６は、第４側壁部２２側に設けても良い。次に、前記切込４を設けた破断部３は、若干大きな一定値以上の力を加えないと破れない程の強度をもつような破断部としてある。しかし、前記押しタブ６の破断部７は、前記破断部３を破断するのに要する力よりも比較的小さな指の力でも破断させることが可能にしてある。図４（Ａ）乃至（Ｅ）は、開封時このダンボール製包装用容器を破断部３で破断し、平面シート状に展開する場合の開封状況を示す。この図に示すように、開封始めには押しタブ６を押して破断部７で破断し（図４（Ａ））、折り目５に設けた破断部３も、少し力を入れるだけで破断し、順次解体されて（図４（Ｂ）〜図４（Ｄ））、最終的には平面シート状となる（図４（Ｅ））。
【００１５】
図５は、前記切込４を設けた破断部３の一部拡大図である。この実施の形態では、破断部３の切込４は、破断した時の形が山形状（鋸状）となるようにしてあり、且つ天蓋部１０と、第４側壁部２２との境界の横方向の折り曲げ線５に沿って設けてある。この場合の横方向とは、包装される物品が本来収納されるべき上下方向に置いたとき、その横方向をいう。この実施の形態での実際の寸法で示すと、この破断部３の切込４の半山形のピッチｐは２０ｍｍ、半山形の高さｈは５ｍｍであって、直線部４ａと山の片側４ｂに当初から切込４を入れて破断させ、山のもう一方の片側４ｃは、第１の天蓋部１０と第４側壁部２２とが連続するよう切込みを入れない状態としてある。
【００１６】
尚、この実施の形態の破断部３の切込４は、図６（Ａ）に示すように、折り曲げ線５に沿って切込４の半山形が、第１の天蓋部１０と第４側壁部２２とにかかるように、設けてあるが、切込４は半山形に限らず、図６（Ｂ）に示すように、所定ピッチの半台形状の切込４としてもよいし、図６（Ｃ）に示すように、半円状の切込４としても良いし、図６（Ｄ）に示すように、ミシン目状の切込４としても良い。要するに、通常の梱包時には簡単に破断せず、開封時に一定以上の力を加えて初めて破断するような破断部であれば良い。
また、この発明の実施の形態では、外箱１と内箱２とより成るダンボール製の包装用容器で説明したが、これに限らず、ダンボール製の包装用容器では広く応用することが可能である。
【発明の効果】
【００１７】
以上詳述したように、この発明のダンボール製包装用容器によれば、開封時大きな力やカッター等の道具を使用することなく、開封することができる。特に、梱包時や運搬時に際しては破れにくく、開封時に作業者の力で容易に開封することができる。このダンボール製包装用容器は、破断部を人の手で破断するだけで容易に平面シート状に展開することができる。従って、使用した後の廃棄処分や再利用に際して、作業処理時間を短縮化したり、労力を軽減することができる。
【図面の簡単な説明】
【図１】この発明のダンボール製包装用容器の全体斜視図である。
【図２】この発明のダンボール製包装用容器の平面シート状の形で示した展開図である。
【図３】この発明のダンボール製包装用容器の外箱部と内箱部の組み立て途中の斜視図である。
【図４】図４（Ａ）乃至図４（Ｅ）は、この発明のダンボール製包装用容器を、解体し初めてから最終的に平面シート状とするまでの工程を示す図である。
【図５】この発明のダンボール製包装用容器の破断部の一部拡大図である。
【図６】この発明のダンボール製包装用容器の破断部の切込の形状例を示し、図６（Ａ）は、破断部の切込の形状が半山形である場合、図６（Ｂ）は、破断部の切込の形状が半台形である場合、図６（Ｃ）は、破断部の切込の形状が半円状である場合、図６（Ｄ）は、破断部の切込の形状がミシン目状である場合を示す。
【符号の説明】
１外箱部
１０第１天蓋部
１１底板部
２内箱部
２１底板部
２２第４側壁
３破断部
４切込
５折り目
６押しタブ
７破断部[0001]
BACKGROUND OF THE INVENTION
The present invention provides a cardboard packaging container for storing electrical products, household products, etc., particularly without using a cutter when collecting for disposal or reuse after use. The present invention relates to a corrugated cardboard packaging container that can be easily developed into a flat sheet shape without adding any other.
[0002]
[Prior art]
When transporting other products (commodities) such as electrical products and household goods produced at the factory to sales outlets or warehouses, these products are packed and shipped in packaging containers, but the packaging containers are made of cardboard. Many packaging containers are used. The used cardboard box after the product is taken out is discarded or collected for effective use of resources and reused. However, since it remains bulky as a box, usually a part of the packaging container is used. Break or put a cutter or the like in the crease and break it to form a flat sheet and then dispose.
[0003]
Conventionally used corrugated cardboard packaging containers have been devised so that they can be easily taken out when taking out a product and can be easily developed into a flat sheet at the time of disposal or collection.
For example, a packaging container comprising a storage portion 1 consisting of side walls (1a, 1b, 1c, 1d) and a bottom (no reference), a first lid 2 and a second lid 3, The product is put in the storage unit 1 and then covered with the first lid 2 and further covered with the second lid 3 provided with the sewing machine wire 5, and the second lid 3 is covered when opened. A packaging container (Japanese Utility Model Publication No. 48-39236), which can be easily taken out into a flat sheet shape, or two opposite bent ends of the box lid part 5 by simply breaking the sewing machine wire 5 Two trapezoidal perforations (21, 22) facing each other with the bottom of each box being formed on the box lid 5, and at least a tear tape 23 extending between the upper sides of the two trapezoidal perforations is formed on the box lid 5. Affixed to the inner wall, and the tape -A kerf 25 for causing the tape 23 is formed, and the box cover 5 is broken by causing the tear tape 23, and then the perforations (21, 22) are broken so that the flat sheet can be easily developed. Or a cardboard box 20 composed of an upper lid 21 and a lower lid 24, joined to the side wall 26 of the lower lid 24 and the side wall 26, and joined to the end wall 23 of the upper lid. The one provided with the opening line 31 in the vertical direction at the fold with 27 (Japanese Utility Model Laid-Open No. 1-85220) has been proposed. In addition, when opening the packaging container, there is also proposed a structure in which a lifting tab 30 is provided on a part of the side wall of the container so as to be easily opened, and the tab 30 is pressed to partially break and open. (Japanese Patent Laid-Open No. 52-12084).
[Problems to be solved by the invention]
[0004]
Conventional cardboard packaging containers require considerable force to break the crease or require a cutter when the box after opening is made into a flat sheet. In addition, as described above, recent packaging containers can be easily reduced and packaged in a flat sheet form from a box to facilitate transportation even when discarded after use or reused. It has become. However, if a perforated cut for breakage is provided in a flat portion such as a canopy of a packaging container, when other objects are placed on the top, they are easily broken by the weight of these objects. Moreover, it does not necessarily break along the perforation at the time of opening. Thus, unless it breaks along the perforation, it becomes difficult to open on the contrary. Furthermore, when providing an opening line for breaking along the crease in the vertical direction, it is difficult to open the opening easily at the time of opening if only one place is provided. In addition, there is a problem that the opening operation is difficult because the four places must be broken along the perforation when opening.
[0005]
The present invention has been made in order to cope with the above-mentioned problems, and is not easily broken when packing or transporting a normal product. When a little large force is applied at the time of opening, the product breaks and an excessively large force is applied. It is an object of the present invention to provide a packaging container that can be opened without using a tool such as a cutter or the like, and that can be easily expanded into a flat sheet at the time of later disposal or reuse. .
[Means for Solving the Problems]
[0006]
That is, in order to solve the above-described problems, the invention according to claim 1 includes a canopy (10), a bottom plate (11), and side walls (12, 13, 14, 22, 25, 26) . In the container for packaging made of cardboard,
The cardboard packaging container comprises an outer box part (1) and an inner box part (2), and the lateral direction of the boundary between the canopy (10) and the side wall (12) or the bottom plate (11) and the side wall (12). along the fold lines (5), the breaking portion to break at a predetermined force or more to (3) is provided,
Both side wall portions (25, 26) of the inner box portion (2) located at both ends of the rupture portion (3) have two side wall portions (13, 14) located at both ends of the outer case portion (1). A corrugated cardboard packaging container which is assembled by being fitted between each other, and can be developed into a flat sheet shape by breaking the breaking portion (3) .
[0007]
Further, the invention described in claim 2 is characterized in that the fracture portion (3) is a fracture portion in which cuts are made at a predetermined pitch.
[0008]
Further, the invention according to claim 3 is a fracture portion (3) provided along a fold line (5) at the boundary between the canopy (10) and the side wall (22) or the bottom plate (11) and the side wall (22 ). A push tab (6) provided with a breaking portion (7 ) that breaks with a force weaker than a force for breaking the breaking portion (3) is formed in the middle of the above.
DETAILED DESCRIPTION OF THE INVENTION
[0009]
Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an overall perspective view of a cardboard packaging container according to the present invention, and FIG. 2 is a development view of the packaging container in a planar shape.
The corrugated cardboard packaging container of this embodiment comprises an outer box part 1 and an inner box part 2, and these outer box part 1 and inner box part 2 have cuts 4 formed at a predetermined pitch. are connected via a breakable portion 3, so that the assembled folded at fold line 5. That is, cut 4 of the breaking unit 3, as described later, it is provided along the transverse fold lines 5 provided in the boundary of the canopy portion (10) side wall portion (22). A semicircular push tab 6 provided with a break portion 7 is formed in the middle of the break portion 3.
[0010]
As shown in FIG. 2, the outer box portion 1 of the cardboard packaging container includes a first canopy portion 10, a first bottom plate portion 11, and a first connecting the first canopy portion 10 and the first bottom plate portion 11. The first side wall portion 12 is composed of a second side wall portion 13 and a third side wall portion 14 that are connected to both sides of the first side wall portion 12. Further, wherein the second side wall 13, the fifth side wall portion 16 containing the bend line 8 fold and the second canopy portion 15, wherein the third side wall 14, the third canopy portion 17 is a sixth sidewall portion 18 , Each provided.
[0011]
Next, as shown in FIG. 2, the inner box portion 2 of the cardboard packaging container includes a second bottom plate 21, a fourth side wall 22, and a third bottom plate connected to both sides of the second bottom plate portion 21. Part 23, a fourth bottom plate part 24, and a seventh side wall part 25 and an eighth side wall part 26 provided on both sides of the fourth side wall 22. In this case, the third bottom plate portion 23 and the fourth bottom plate portion 24 are folded and stacked between the first bottom plate portion 11 and the second bottom plate 21 in the assembled state. The third bottom plate portion 23 and the fourth bottom plate portion 24 that are arranged in a layer between the first bottom plate portion 11 and the second bottom plate portion 21 are commodities that are put together with the first bottom plate 11 and the second bottom plate portion 21. It plays the role of a cushion.
[0012]
FIG. 3 is a perspective view of the outer box part 1 and the inner box part 2 in the middle of assembly.
In this corrugated cardboard packaging container having the above structure, the assembly procedure is performed as follows. In order to make the configuration of the corrugated cardboard packaging container easier to understand, the outer box part 1 and the inner box part 2 are illustrated and described in a state where they are separated by the breaking part 3. That is, the outer box portion 1 is bent inward from the first bottom plate portion 11 and connected to the second canopy portion 15, the fifth side wall portion 16, and the third side wall portion 14 connected to the second side wall portion 13. The third canopy portion 17 and the sixth side wall portion 18 are also bent inward, and bent inward of the first canopy portion 10 and the first bottom plate portion 11, respectively.
[0013]
Further, the inner box portion 2 has a seventh side wall that is provided on both sides of the fourth side wall portion 22 by bending the third bottom plate portion 23 and the fourth bottom plate portion 24 provided on both sides of the second bottom plate portion 21 outward. The part 25 and the eighth side wall part 26 are bent inward. The eighth side wall portion 26 is interposed between the third side wall portion 14 and the sixth side wall portion 18 so that the seventh side wall portion 25 enters between the second side wall portion 13 and the fifth side wall portion 16. In addition, the third bottom plate portion 23 and the fourth bottom plate portion 24 are respectively fitted so as to be positioned between the first bottom plate portion 11 and the second bottom plate portion 21.
[0014]
As shown in FIGS. 1-2, a first canopy portion 10, along the fold line 5 between the fourth side wall portion 22, a breaking portion 3 containing the cut 4 at a constant pitch, A semicircular push tab 6 provided with a breaking portion 7 is formed. And although the said push tab 6 is provided in the 1st canopy part 10 side, you may provide this push tab 6 in the 4th side wall part 22 side. Next, the breaking portion 3 provided with the notches 4 is a breaking portion having such a strength that it cannot be broken unless a slightly larger force than a certain value is applied. However, the breaking portion 7 of the push tab 6 can be broken even with a relatively small finger force than the force required to break the breaking portion 3. 4 (A) to 4 (E) show the unsealing situation when the corrugated cardboard packaging container is broken at the breaking portion 3 and opened into a flat sheet at the time of opening. As shown in this figure, at the beginning of opening, the pushing tab 6 is pushed and broken at the breaking portion 7 (FIG. 4A), and the breaking portion 3 provided on the fold 5 is also broken by applying a little force. It is disassembled (FIGS. 4B to 4D) and finally becomes a flat sheet (FIG. 4E).
[0015]
FIG. 5 is a partially enlarged view of the fracture portion 3 provided with the notches 4. In this embodiment, the notch 4 of the breaking portion 3 is shaped like a mountain (saw-tooth) when broken, and beside the boundary between the canopy portion 10 and the fourth side wall portion 22. It is provided along a fold line 5 in the direction. The horizontal direction in this case refers to the horizontal direction when the article to be packaged is placed in the vertical direction to be originally stored. In terms of the actual dimensions in this embodiment, the pitch p of the notch 4 of the fracture portion 3 is 20 mm, the height h of the half angle is 5 mm, and the straight portion 4a and one side 4b of the mountain The other side 4c of the mountain is not cut so that the first canopy 10 and the fourth side wall 22 are continuous.
[0016]
In addition, as shown in FIG. 6A, the notch 4 of the fracture portion 3 of this embodiment has a half-mountain shape of the notch 4 along the fold line 5, and the first canopy portion 10 and the fourth side wall. However, the notch 4 is not limited to a half-mountain shape, but may be a half-trapezoidal notch 4 with a predetermined pitch as shown in FIG. As shown in (C), a semicircular cut 4 may be used, or as shown in FIG. 6 (D), a perforated cut 4 may be used. In short, it may be a broken portion that does not break easily during normal packaging but breaks only when a certain force is applied during opening.
In the embodiment of the present invention, the cardboard packaging container including the outer box 1 and the inner box 2 has been described. However, the present invention is not limited to this and can be widely applied to a cardboard packaging container. is there.
【The invention's effect】
[0017]
As described above in detail, the cardboard packaging container of the present invention can be opened without using a large force or a tool such as a cutter at the time of opening. In particular, it is difficult to tear when packing or carrying, and can be easily opened by the operator's power when opening. This corrugated cardboard packaging container can be easily developed into a flat sheet simply by breaking the broken portion with a human hand. Accordingly, the work processing time can be shortened or the labor can be reduced at the time of disposal and reuse after use.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a cardboard packaging container according to the present invention.
FIG. 2 is a development view of the corrugated cardboard packaging container according to the present invention in the form of a flat sheet.
FIG. 3 is a perspective view of the corrugated cardboard packaging container according to the present invention in the course of assembling the outer box part and the inner box part.
4 (A) to 4 (E) are views showing the steps from the first dismantling of the corrugated cardboard packaging container of the present invention to the final flat sheet shape.
FIG. 5 is a partially enlarged view of a broken portion of the cardboard packaging container of the present invention.
FIG. 6 shows an example of the shape of the cut at the broken portion of the corrugated cardboard packaging container according to the present invention, and FIG. 6 (A) shows the case where the cut shape at the broken portion is a half-mountain. FIG. 6 (C) shows the case where the cut shape of the fracture portion is a semi-trapezoid, FIG. 6 (C) shows the case where the cut shape of the fracture portion is a semicircular shape, and FIG. The case where the shape of is perforated is shown.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer box part 10 1st canopy part 11 Bottom plate part 2 Inner box part 21 Bottom plate part 22 4th side wall 3 Breaking part 4 Notch 5 Folding line 6 Push tab 7 Breaking part

Claims

In a cardboard packaging container composed of a canopy, a bottom plate and side walls,
The corrugated cardboard packaging container comprises an outer box part and an inner box part, and is provided with a rupture part that breaks with a certain force or more along a lateral fold line at the boundary between the canopy and the side wall or the bottom plate and the side wall. ,
The both side wall portions of the inner box portion positioned at both ends of the rupture portion are assembled by being fitted between two side wall portions positioned at both ends of the outer box portion, and the rupture portion is broken to thereby obtain a flat sheet. A cardboard packaging container characterized in that it can be expanded into a shape .

2. The corrugated cardboard packaging container according to claim 1, wherein the breakage portion is a breakage portion that is cut at a predetermined pitch that breaks with a force of a certain level or more.

A push tab provided with a rupture portion that breaks with a weaker force than the force that breaks the rupture portion is formed in the middle of the rupture portion provided along the folding line at the boundary between the canopy and the side wall or the bottom plate and the side wall. The container for packaging made of corrugated cardboard according to claim 1 or 2.