JP3730602B2

JP3730602B2 - Packaging box

Info

Publication number: JP3730602B2
Application number: JP2002203706A
Authority: JP
Inventors: 明浩根崎
Original assignee: 常陸森紙業株式会社
Priority date: 2002-07-12
Filing date: 2002-07-12
Publication date: 2006-01-05
Anticipated expiration: 2022-07-12
Also published as: JP2004042969A

Description

【０００１】
【発明の属する技術分野】
本発明は、段ボール板等のブランクを折り曲げて作る箱状の包装用箱に関し、接着剤、ステープル或いは粘着テープ等を使用せずに簡単に箱の上面または底面を閉じることができる包装用箱に関する。
【０００２】
【従来の技術】
従来最も一般的な包装容器の一つとして、段ボール板等のブランクを折り曲げて作る箱状の包装用箱がある。例えば、ブランクを縦に平行な４本の折れ線で同じ方向に順次折り曲げ、その両端縁を接着やステープル止めすることにより、四角筒状の胴部を形成し、この胴部の下辺から延設した底フラップを内側に折り曲げて箱の下面と閉じ、胴部の上辺から延設した上フラップを内側に折り曲げて箱の上面を閉じる。
【０００３】
このような包装用箱では、箱の底面を閉じた状態で箱の内部に収納物を収納し、その後箱の上面を閉じるのが一般的である。箱の底面は、接着剤、ステープル或いは粘着テープ等を使用して収納物の重量に耐えることができるようにしっかりと閉じる。また、上面は搬送中に簡単に開かないようにやはり前記の接着剤、ステープル、粘着テープ或いは他の適宜の手段によって閉じる。
【０００４】
これに対して、箱の上面を閉じた後、箱の天地を逆にした状態で箱の底面側から収納物を収納し、その後箱の底面を閉じ、箱の天地を上下正しくして搬送するという形式の箱がある。このような箱としては、例えばネギやゴボウ等の長尺もの野菜の出荷用包装用箱がその例である。
【０００５】
このような包装用箱では、上面側のフラップを接着剤、ステープル或いは粘着テープ等で連結した状態で、箱の上面の中央部分が開いており、その周辺部のみが閉じられている。これにより、開いた中央部分から収納された野菜を見ることが出来、その太さや色等の姿や品質等の出荷時の外観検査や市場で取引前の外観評価等を行うことが出来る。長尺もの野菜であるため、箱の上面が開いていても、包装用箱の天地を逆にしたときに野菜がこぼれ落ちることが無い。
【０００６】
【発明が解決しようとしている課題】
前記のようなネギやゴボウ等の野菜を包装用箱に詰める箱詰め作業は、通常生産農家で行う。その後、箱詰めされた野菜は、生産者組合等の集荷場へ搬送され、そこで出荷検査と員数確認が行われたうえで市場に搬送される。市場では、セリ等の取引の際に、仲買人等により外観評価を受ける。
【０００７】
野菜を包装用箱に詰める箱詰め作業のとき、包装用箱の組立は出来るだけ簡易であることが好ましい。また、集荷場等での出荷検査や市場での外観評価の際には、包装用箱の上面を簡単に開いてその全体を見ることが出来、その後簡単に閉じることが出来るのが好ましい。
【０００８】
しかし、前述のように包装用箱の上面側のフラップを接着剤、ステープル或いは粘着テープ等で連結する場合、野菜の箱詰めの際に手数がかかり、包装用箱１個当たりに箱詰めする作業に多くの時間がかかるという課題がある。また、包装用箱の上面側のフラップを接着剤、ステープル或いは粘着テープ等で連結してしまうと、集荷場等での出荷時の外観検査や市場での外観評価の際に包装用箱の上面を開くことは出来ず、野菜を観察することが出来るのは包装用箱の上面の中央部分の開口部に限られるという問題もある。
【０００９】
本発明は、前記のような従来の段ボール箱等の包装用箱の課題に鑑み、接着剤、ステープル或いは粘着テープ等を使用せずに上面を容易に開閉することが可能で、収納物の出荷時の検査や取引時の外観評価等を容易に行うことが出来る包装用箱を提供することを目的とするものである。
【００１０】
【課題を解決するための手段】
本発明では、前記の目的を達成するため、包装用箱の上面または底面を閉じるため、対向する一対の側パネル１、１の折線と対向する一対の端パネル２、２の折線とからそれぞれ延設した第一のフラップ６、６と第二のフラップ７、７を前後して箱の内側に折り曲げる際に、隣接する第一のフラップ６、６と第二のフラップ７、７とを、それらの端で係合して固定出来るようにした。そのために、第一のフラップ６、６と第二のフラップ７、７の両端にそれぞれＶ字形の切込８、１０を設け、これらを係合すると共に、この切込８、１０に隣接するタブ状の突起９、１１をそれぞれ相手方のフラップ６、６、７、７の下に差し込むようにした。
【００１１】
より具体的に説明すると、本発明による包装用箱は、基本的には、対向する一対の側面を構成する側パネル１、１と、箱の対向する一対の端面を構成する端パネル２、２とが折線を介して交互に連なり、最も端の側パネル１と端パネル２の側辺が互いに接合され、側パネル１、１と端パネル２、２の上辺及び／または下辺の折線から箱の上面及び／または底面を閉じる第一のフラップ６、６と第二のフラップ７、７とがそれぞれ延設され、対向する一対の第一のフラップ６、６と対向する一対の第二のフラップ７、７とを前後して箱の内側に折り曲げ、隣接する第一のフラップ６、６と第二のフラップ７、７との両端を互いに係合して箱の上面及び／または底面を閉じるものである。
【００１２】
本発明では、このような包装用箱において、前記第一のフラップ６、６と第二のフラップ７、７とを箱の内側に折り曲げたとき、それらの両端の互いに重なり合う位置を谷とするＶ字形の切込８、８、１０、１０をそれぞれ前記第一のフラップ６、６と第二のフラップ７、７とに設け、前記第一のフラップ６、６の切込８、８より端縁側に第二のフラップ７、７の下に差し込まれるタブ状の突起９、９を設け、前記第二のフラップ７、７の切込１０、１０より折線側に第一のフラップ６、６の下に差し込まれるタブ状の突起１１、１１を設けている。さらに、第一のフラップ６、６のタブ状の突起９、９より先の端縁側の両側縁を同第一のフラップ６、６の先端側が狭くなるように斜めにカットした勾配縁１２、１２とし、第二のフラップ７、７の切込１０、１０より先の端縁側の両側縁を同第二のフラップ（７）、（７）の先端側が狭くなるように斜めにカットした勾配縁１３、１３としている。
【００１３】
このような包装用箱において、その上面または底面を閉じる場合、前記第一のフラップ６、６のＶ字形の切込８、８と第二のフラップ７、７のＶ字形の切込１０、１０とを互いに係合すると共に、前記第一のフラップ６、６のタブ状の突起９、９を第二のフラップ７、７の下に差し込み、且つ前記第二のフラップ７、７のタブ状の突起１１、１１を第一のフラップ６、６の下に差し込む。こうすることにより、前記第一のフラップ６、６と第二のフラップ７、７とがその両端において隣接する他のフラップ６、６、７、７と互いに固定され、上面または底面の一部が閉じた状態となる。
【００１４】
さらに、第一のフラップ６、６のタブ状の突起９、９より先の端縁側の両側縁を斜めにカットした勾配縁１２、１２とし、第二のフラップ７、７の切込１０、１０より先の端縁側の両側縁を斜めにカットした勾配縁１３、１３としているので、まず箱の上面または底面を閉じる時は、第二のフラップ７、７を箱の内側に折り曲げた後、第一のフラップ６、６を箱の内側に折り曲げ、その両端部分を第二のフラップ７、７の両端部分に載せた状態で、第一のフラップ６、６の端縁側を下に押し下げると、第二のフラップ７、７の先端縁側も押し下げられる。これにより、第一のフラップ６、６の勾配縁１２、１２と第二のフラップ７、７の勾配縁１３、１３とが近づき、さらに合って、ついにはずれるため、第一のフラップ６、６の突起が第二のフラップ７、７の勾配縁１３、１３からその下に入る。その後、第一のフラップ６、６に加えていた力を除くと、第一のフラップ６、６と第二のフラップ７、７が自らの弾力で復元し、前記のような第一のフラップ６、６と第二のフラップ７、７の係合状態が自ずと形成され、箱の上面または底面が閉じられる。
【００１５】
他方、前記のように箱の上面または底面が閉じられた状態から開くとき時は、第二のフラップ７、７の端縁側を押し下げる。すると、第一のフラップ６、６の先端縁側も押し下げられため、前記と同様にして第二のフラップ７、７の勾配縁１３、１３と第一のフラップ６、６の勾配縁１２、１２とが近づき、さらに合って、ついにはずれるため、第一のフラップ６、６の突起が第二のフラップ７、７の勾配縁１３、１３から外れて、第一のフラップ６、６が自らの弾力で復帰する。その後、第二のフラップ６、６に加えていた力を除くと、第二のフラップ７、７も自らの弾力で復元し、前記のような第一のフラップ６、６と第二のフラップ７、７の係合状態が解除され、箱の上面または底面を開くことが出来る。
【００１６】
なお具体的には、第一のフラップ６、６の勾配縁１２、１２を側パネル１、１との折線と平行な第一のフラップ６、６の端縁に対し斜め４５゜とし、第二のフラップ７、７の勾配縁１３、１３を端パネル２、２との折線と平行な第二のフラップ７、７の端縁に対し斜め４５゜とするのがよい。
【００１７】
【発明の実施の形態】
次に、図面を参照しながら、本発明の実施の形態について、具体的且つ詳細に説明する。
図１は、本発明の一実施形態による一般的な包装用箱の本体のブランクの展開図である。この包装用箱のブランクは紙製の波状のシートからなる中芯をライナーでラミネートした段ボール板を使用する。段ボール板を図１に実線で示すように打ち抜くと共に、破線で示すように折れ線を入れることにより、組み立て前のブランクが出来上がる。
【００１８】
図１に示す包装用箱のブランクでは、矩形の側パネル１、１と端パネル２、２とが折れ線を介して交互に連なっている。それら側パネル１、１と端パネル２、２の高さは何れも同じであり、２つの側パネル１、１と端パネル２、２の幅はそれぞれ等しく、側パネル１、１と端パネル２、２とでは幅が異なっている。側パネル１、１と端パネル２、２の高さと幅は、その用途や収納物の大きさ等に応じて異なることは言うまでもない。
【００１９】
端にある側パネル１の側辺からは、折れ線を介して接合フラップ３が延設されており、端にある端パネル２には、そのような接合フラップは延設されていない。
側パネル１、１の下辺の折線からは、箱の底面側の第一のフラップ４、４が延設されている。この箱の底面側の第一のフラップ４、４の長さ（図１において左右の寸法）は、側パネル１、１の幅より若干狭く、またその高さ（図１において上下の寸法）は、端パネル２の幅の約１／２である。
【００２０】
端パネル２、２の下辺の折れ線からは箱の底面側の第二のフラップ５、５が延設されている。この箱の底面側の第二のフラップ５、５の長さ（図１において左右の寸法）は、端パネル２、２の幅より若干狭く、またその高さ（図１において上下の寸法）は、前記箱の底面側の第一のフラップ４、４と同じである。
【００２１】
側パネル１、１の上辺の折線からは、箱の上面側の第一のフラップ６、６が延設されている。この箱の上面側の第一のフラップ６、６の長さ（図１において左右の寸法）は側パネル１、１の幅より若干狭い。また箱の上面側の第一のフラップ６、６の高さ（図１において上下の寸法）は次に述べる箱の上面側の第二のフラップ７、７とほぼ同じである。
【００２２】
端パネル２、２の上辺の折線からは、箱の上面側の第二のフラップ７、７が延設されている。この箱の上面側の第二のフラップ７、７の長さ（図１において左右の寸法）は端パネル２、２の幅より若干狭く、またその高さ（図１において上下の寸法）は前記端パネル２、２の幅の１／２より低い。
【００２３】
前記の箱の上面側の第一のフラップ６、６の両側の形状はその第一のフラップ６、６の中心の縦方向の線を対称軸として対称である。第一のフラップ６、６の両側の折線を介して側パネル１、１に連なる基部の側辺は、折線に対して垂直に立ち上がり、さらに円弧の縁を介して横方向に開いたＶ字形の切込８、８に至る。この切込９、９の上側は尖った山形タブ状の突起９、９となっている。この突起９、９の頂点部分における第一のフラップ６、６の幅は、前記基部の側辺部分における幅より若干狭い。さらに、この突起９、９の上は斜め４５゜の勾配縁１２、１２となっており、この勾配縁１２、１２は同第一のフラップ６、６の先端側が狭くなるように前記側パネル１、１との折線と平行な第一のフラップ６、６の端縁と斜め４５゜の角度で連なっている。
【００２４】
前記の箱の上面側の第二のフラップ７、７の両側の形状もまた、その第二のフラップ７、７の中心の縦方向の線を対称軸として対称である。第二のフラップ７、７の両側の折線を介して端パネル２、２に連なる基部の側辺は、折線に対して垂直に立ち上がり、さらに円弧の縁を有するタブ状の突起１１、１１を介して上方向に開いたＶ字形の切込１０、１０に至る。この切込１０、１０の上側は斜め４５゜の勾配縁１３、１３となっており、この勾配縁１３、１３は同第二のフラップ（７）、（７）の先端側が狭くなるように前記端パネル２、２との折線と平行な第二のフラップ７、７の端縁と斜め４５゜の角度で連なっている。
【００２５】
このようなブランクから包装用箱は次のようにして組み立てられる。
まず、側パネル１、１、端パネル２、２及び接合フラップ３の間にある折線を何れも９０゜の角度で同じ方向に折り曲げる。さらに、接合フラップ３の外側面を端パネル２の端縁部の内面に当てて、接着、ステープル止め等の手段で固定する。これにより、側パネル１、１と端パネル２、２とで四角筒状の胴部が形成される。
【００２６】
次に、このようにして側パネル１、１と端パネル２、２とで四角筒状の胴部が形成された後、箱の上面を閉じる。
まず、図２に示すように、第二のフラップ７、７を箱の内側に折り曲げる。その後、図３と図４に示すように第一のフラップ６、６を箱の内側に折り曲げ、その両端部分を第二のフラップ７、７の両端部分に載せる。この状態では、第一のフラップ６、６の両側の切込８、８のＶ字形の頂点となる谷の部分と前記第二のフラップ７、７の切込１０、１０のＶ字形の頂点となる谷の部分とがほぼ同じ位置になるように前記切込８、８、１０、１０が予め形成されている。
【００２７】
次にこの状態で、図３に矢印で示すように、第一のフラップ６、６の端縁側を下に押し下げると、第二のフラップ７、７の先端縁側も押し下げられる。これにより、図５に示すように、第一のフラップ６、６の勾配縁１２、１２と第二のフラップ７、７の勾配縁１３、１３とが近づき、さらに合って、ついにはずれるため、第一のフラップ６、６の突起が第二のフラップ７、７の勾配縁１３、１３からその下に入る。その後、第一のフラップ６、６の押し下げていた力を除くと、第一のフラップ６、６と第二のフラップ７、７が自らの弾力で復元し、図６のような状態となる。
【００２８】
この図６に示された状態では、前記第一のフラップ６、６のＶ字形の切込８、８と第二のフラップ７、７のＶ字形の切込１０、１０とを互いに係合すると共に、前記第一のフラップ６、６のタブ状の突起９、９を第二のフラップ７、７の下に差し込まれ、且つ前記第二のフラップ７、７のタブ状の突起１１、１１を第一のフラップ６、６の下に差し込まれる。これより、前記第一のフラップ６、６と第二のフラップ７、７とがその両端において隣接する他のフラップ６、６、７、７と互いに固定され、上面の側パネル１、１と端パネル２、２の近い部分が一部閉じた状態となりる。この状態で箱の上面の中央部は開いている。
【００２９】
こうして箱の上面を閉じた後、この箱の上面を下側、つまり図６と天地を逆にした状態で、開いた箱の底面側から箱の中にネギやゴボウ等の収納物を収納する。箱の中に収納物を収納した状態では、前記第一のフラップ６、６と第二のフラップ７、７の突起９、９、１１、１１が収納物によって上から押さえられるため、それら第一のフラップ６、６と第二のフラップ７、７の両側部分の係合が簡単に外れることはない。
【００３０】
次に、箱の底面側を閉じるときは、まず箱の底面側の第二のフラップ５、５を箱の底面側に約９０゜の角度で折り曲げる。次に、箱の底面側の第一のフラップ４、４を９０゜の角度箱の内側に折り曲げて第二のフラップ５、５の上に重ねる。この状態で、第一のフラップ４、４を接着、ステープル止め、粘着テープ貼り付け等の適宜の手段で第二のフラップ５、５に固定する。これにより、箱の底面の封止が完了する。
収納物を出荷するに当たっては、箱の底面を下側、上面を上側する。この状態は、箱の上面の中央部が開いているので、ここから収納物を外観検査することが出来る。。
【００３１】
次に、包装用箱を開封するときは、箱の底面側を上にした状態で、その第一のフラップ６、６と第二のフラップ７、７とを順次起こし、箱の底面を開き、その中の収納物を取り出す。その後、箱の上面側を上向きにした状態で、図６に矢印で示すように、前記箱の上面側の第二のフラップ７、７の端縁側を下方に押し込み、第二のフラップ７、７を下側に折る。そうすると、第一のフラップ６、６の先端縁側も押し下げられため、図５に示すように、第二のフラップ７、７の勾配縁１３、１３と第一のフラップ６、６の勾配縁１２、１２とが近づき、さらに合ってついにはずれるため、第一のフラップ６、６の突起が第二のフラップ７、７の勾配縁１３、１３から外れて、第一のフラップ６、６が自らの弾力で復帰する。その後、第二のフラップ６、６の押し下げを停止し、その力を開放すると、第二のフラップ７、７も自らの弾力で復元し、図３と図４に示すように、前記のような第一のフラップ６、６と第二のフラップ７、７の係合状態が解除される。これにより、箱の上面または底面を開くことが出来る。
【００３２】
なお、、前述の例では前記のようにして、箱の上面を第一のフラップ６、６と第二のフラップ７、７の切込８、８、１０、１０と突起９、９、１１、１１との係合によって閉止状態を保持するようにしたが、必要に応じて底面側も或いは底面側のみを前記と同様にして第一のフラップ４、４と第二のフラップ５、５との閉止状態を保持する構成とすることも出来る。
【００３３】
また前述の例では、「第一のフラップ」と「第二のフラップ」のように、対向する２対のフラップを使い分ける用語を使用したが、それらは相対的な位置関係を示すものに過ぎない。便宜上対向する一方の対のフラップを「第一のフラップ」とし、対向する他方の対のフラップを「第二のフラップ」としたに過ぎない。
【００３４】
さらに、「側パネル」や「端パネル」のように、６面体の箱の側面と端面を使い分ける用語を使用したが、箱の側面と端面とは相対的な位置関係を示す用語で、対向する或る一対の縦の面を側面とすれば、それらの面と直交する対向する他の一対の縦の面が端面となるのに過ぎない。平面が正方形の箱体の場合を考えると明らかなように、立法体形の箱における側面と端面とは、対抗した一対ずつの縦の面を区別するのに意味があるのに過ぎない。
【００３５】
【発明の効果】
以上説明した通り、本発明による包装用箱では、接着剤、ステープル或いは粘着テープ等を使用せずに箱の上面または底面を開閉することが可能で、収納物の出荷時の検査や取引時の外観評価等を容易に行うことが出来る包装用箱を得ることが出来る。。
【図面の簡単な説明】
【図１】本発明による包装用箱の一実施形態を示すもので、包装用箱を組み立てるため段ボール等を裁断し、折れ線を入れた状態のブランクの展開図である。
【図２】同包装容器の実施形態において、側パネルと端パネルの端部を接合し、四角筒状の胴部を形成し、その上面を閉じるため、箱の上面側の第二のフラップを箱の上面側に倒した状態の斜視図である。
【図３】同包装容器の実施形態において、図２の状態からさらに一方の箱の上面側の第一のフラップを箱の上面側に倒した状態の斜視図である。
【図４】同包装容器の実施形態において、図３と同じ状態の平面図である。
【図５】同包装容器の実施形態において、図３の状態から矢印で示すように、第一のフラップの端縁を押し込んでいった状態の平面図である。
【図６】同包装容器の実施形態において、箱の上面側が閉じられた状態を示す斜視図である。
【符号の説明】
１側パネル
２端パネル
６箱の上面側の第一のフラップ
７箱の上面側の第二のフラップ
８箱の上面側の第一のフラップの切込
９箱の上面側の第一のフラップの突起
１０箱の上面側の第一のフラップの切込
１１箱の上面側の第二のフラップの切込
１２箱の上面側の第一のフラップの勾配縁
１３箱の上面側の第一のフラップの勾配縁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a box-shaped packaging box that is formed by bending a blank such as a cardboard board, and relates to a packaging box that can easily close the top surface or bottom surface of the box without using an adhesive, staple, adhesive tape, or the like. .
[0002]
[Prior art]
Conventionally, as one of the most common packaging containers, there is a box-shaped packaging box formed by bending a blank such as a corrugated board. For example, a blank is bent in the same direction with four parallel lines in the same direction, and its both ends are bonded or stapled to form a square cylindrical body, which extends from the lower side of this body. The bottom flap is folded inward to close the lower surface of the box, and the upper flap extending from the upper side of the trunk is folded inward to close the upper surface of the box.
[0003]
In such a packaging box, it is common to store a stored item inside the box with the bottom face of the box closed, and then close the top face of the box. The bottom of the box is tightly closed so that it can withstand the weight of the contents using glue, staples or adhesive tape. The upper surface is also closed by the adhesive, staple, adhesive tape or other appropriate means so as not to open easily during conveyance.
[0004]
On the other hand, after closing the top of the box, store the contents from the bottom side of the box with the box upside down, then close the bottom of the box and transport the box upside down correctly There is a box of the form. An example of such a box is a shipping packaging box for long vegetables such as leek and burdock.
[0005]
In such a packaging box, the central portion of the upper surface of the box is opened and only the peripheral portion thereof is closed in a state where the flaps on the upper surface side are connected with an adhesive, staple, adhesive tape or the like. Thereby, the vegetables stored from the opened center part can be seen, and the appearance of the thickness, the color, etc., the quality and the like can be inspected at the time of shipment, and the appearance can be evaluated before the transaction in the market. Since it is a long vegetable, even if the top surface of the box is open, the vegetable will not spill out when the top and bottom of the packaging box is reversed.
[0006]
[Problems to be solved by the invention]
A boxing operation for packing vegetables such as leeks and burdocks in a packaging box as described above is usually performed by a production farmer. After that, the boxed vegetables are transported to a collection place such as a producers' union, where they are transported to the market after being subjected to shipping inspection and number confirmation. In the market, the appearance is evaluated by a middleman or the like when dealing with seri.
[0007]
When packing the vegetables into the packaging box, it is preferable that the assembly of the packaging box is as simple as possible. Further, in the case of shipping inspection at a pickup place or the like and appearance evaluation in the market, it is preferable that the upper surface of the packaging box can be easily opened to see the whole and then can be easily closed.
[0008]
However, as described above, when the flaps on the upper surface side of the packaging box are connected with an adhesive, staples, adhesive tape, etc., it takes a lot of time to pack the vegetables, and it is often done to pack the boxes per packaging box. There is a problem that it takes time. In addition, if the flap on the upper surface side of the packaging box is connected with an adhesive, staple, adhesive tape, etc., the upper surface of the packaging box will be used for appearance inspection at the time of shipment at a pickup place, etc. and appearance evaluation in the market. There is also a problem that it is not possible to open the box and the vegetables can be observed only at the opening at the center of the upper surface of the packaging box.
[0009]
In view of the problems of the packaging box such as the conventional cardboard box as described above, the present invention can easily open and close the upper surface without using an adhesive, a staple, an adhesive tape, etc. An object of the present invention is to provide a packaging box that can easily perform inspection at the time, appearance evaluation at the time of transaction, and the like.
[0010]
[Means for Solving the Problems]
In the present invention, in order to achieve the above object, in order to close the upper surface or the bottom surface of the packaging box, the fold line of the pair of side panels 1 and 1 facing each other and the fold line of the pair of end panels 2 and 2 facing each other are extended. When the first flaps 6, 6 and the second flaps 7, 7 are folded back and forth inside the box, the adjacent first flaps 6, 6 and the second flaps 7, 7 It can be fixed by engaging at the end. For this purpose, V-shaped cuts 8 and 10 are provided at both ends of the first flaps 6 and 6 and the second flaps 7 and 7, respectively, and they are engaged with each other, and tabs adjacent to the cuts 8 and 10 are provided. The projections 9 and 11 are inserted under the other flaps 6, 6, 7 and 7, respectively.
[0011]
More specifically, the packaging box according to the present invention basically includes side panels 1 and 1 constituting a pair of opposed side surfaces and end panels 2 and 2 constituting a pair of opposed end surfaces of the box. Are alternately connected via a broken line, the side edges of the end panel 1 and the end panel 2 are joined to each other, and the side panel 1, 1 and the end panel 2, 2 from the upper side and / or the lower side folding line of the box The first flaps 6, 6 and the second flaps 7, 7 that close the top surface and / or the bottom surface are respectively extended, and the pair of second flaps 7 that face the pair of first flaps 6, 6 that face each other. , 7 is folded back and forth inside the box, and both ends of the adjacent first flaps 6 and 6 and the second flaps 7 and 7 are engaged with each other to close the top surface and / or bottom surface of the box. is there.
[0012]
In the present invention, in such a packaging box, when the first flaps 6 and 6 and the second flaps 7 and 7 are folded inside the box, the positions where the two ends overlap each other are defined as valleys V. Character-shaped cuts 8, 8, 10, and 10 are provided in the first flaps 6 and 6 and the second flaps 7 and 7, respectively, and the edge sides of the cuts 8 and 8 of the first flaps 6 and 6 are provided. Are provided with tab-like protrusions 9 and 9 to be inserted under the second flaps 7 and 7, and below the first flaps 6 and 6 on the folding line side from the notches 10 and 10 of the second flaps 7 and 7. Tab-shaped projections 11 are inserted into the tab. Further, the slope edges 12, 12 are obtained by obliquely cutting the both side edges of the first flaps 6, 6 on the edge side ahead of the tab-shaped protrusions 9, 9 so that the front ends of the first flaps 6, 6 are narrowed. The slope edges 13 are obtained by obliquely cutting the both side edges of the second flaps 7 and 7 on the end edge side before the cuts 10 and 10 so that the front ends of the second flaps (7) and (7) are narrowed. , 13.
[0013]
In such a packaging box, when the top or bottom surface is closed, the V-shaped cuts 8, 8 of the first flaps 6, 6 and the V-shaped cuts 10, 10 of the second flaps 7, 7 are used. And the tab-like protrusions 9 and 9 of the first flaps 6 and 6 are inserted under the second flaps 7 and 7 and the tab-like projections of the second flaps 7 and 7 are inserted. The protrusions 11 and 11 are inserted under the first flaps 6 and 6. By doing so, the first flaps 6 and 6 and the second flaps 7 and 7 are fixed to each other with the adjacent flaps 6, 6, 7 and 7 adjacent to each other, and a part of the upper surface or the bottom surface is fixed. Closed state.
[0014]
Further, both side edges of the first flaps 6 and 6 on the edge side ahead of the tab-like projections 9 and 9 are inclined edges 12 and 12, and the second flaps 7 and 7 are cut 10 and 10. Since the slope edges 13 and 13 are formed by obliquely cutting the both side edges on the front edge side, when the top surface or bottom surface of the box is first closed, the second flaps 7 and 7 are folded inside the box. When the first flaps 6 and 6 are bent inside the box and both end portions thereof are placed on both end portions of the second flaps 7 and 7, the end edges of the first flaps 6 and 6 are pushed down. The leading edge side of the second flaps 7 and 7 is also pushed down. As a result, the gradient edges 12 and 12 of the first flaps 6 and 6 approach the gradient edges 13 and 13 of the second flaps 7 and 7, and further match and finally shift, so that the first flaps 6 and 6 A protrusion enters below the sloped edges 13, 13 of the second flaps 7,7. Thereafter, when the force applied to the first flaps 6 and 6 is removed, the first flaps 6 and 6 and the second flaps 7 and 7 are restored by their own elasticity, and the first flap 6 as described above is restored. , 6 and the second flaps 7, 7 are naturally formed, and the top or bottom surface of the box is closed.
[0015]
On the other hand, when opening from the state where the upper surface or the bottom surface of the box is closed as described above, the edge side of the second flaps 7 and 7 is pushed down. Then, since the leading edge side of the first flaps 6 and 6 is also pushed down, the gradient edges 13 and 13 of the second flaps 7 and 7 and the gradient edges 12 and 12 of the first flaps 6 and 6 , Approaches and finally disengages, so that the projections of the first flaps 6 and 6 are disengaged from the slope edges 13 and 13 of the second flaps 7 and 7, and the first flaps 6 and 6 have their own elasticity. Return. Thereafter, when the force applied to the second flaps 6 and 6 is removed, the second flaps 7 and 7 are also restored by their own elasticity, and the first flaps 6 and 6 and the second flaps 7 as described above are restored. , 7 is released, and the top or bottom surface of the box can be opened.
[0016]
More specifically, the slope edges 12 and 12 of the first flaps 6 and 6 are inclined at 45 ° with respect to the edge of the first flaps 6 and 6 parallel to the fold line with the side panels 1 and 1, and the second Flap 7, 7 slope edges 13, 13 It is preferable to make the angle 45 ° with respect to the edge of the second flaps 7 and 7 parallel to the fold line with the end panels 2 and 2.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described specifically and in detail with reference to the drawings.
FIG. 1 is a developed view of a blank of a main body of a general packaging box according to an embodiment of the present invention. The blank for the packaging box uses a corrugated board in which a core made of a corrugated sheet made of paper is laminated with a liner. A blank before assembly is completed by punching the corrugated board as shown by a solid line in FIG. 1 and by inserting a broken line as shown by a broken line.
[0018]
In the blank of the packaging box shown in FIG. 1, rectangular side panels 1 and 1 and end panels 2 and 2 are alternately connected via a broken line. The side panels 1 and 1 and the end panels 2 and 2 have the same height, the two side panels 1 and 1 and the end panels 2 and 2 have the same width, and the side panels 1 and 1 and the end panel 2 have the same width. 2 and the width are different. Needless to say, the heights and widths of the side panels 1 and 1 and the end panels 2 and 2 differ depending on the application, the size of the stored items, and the like.
[0019]
A joining flap 3 is extended from the side of the side panel 1 at the end via a broken line, and no such joining flap is extended to the end panel 2 at the end.
First flaps 4, 4 on the bottom side of the box extend from the fold line on the lower side of the side panels 1, 1. The length of the first flaps 4 and 4 on the bottom side of the box (left and right dimensions in FIG. 1) is slightly narrower than the width of the side panels 1 and 1, and the height (up and down dimensions in FIG. 1) is , About 1/2 of the width of the end panel 2.
[0020]
Second flaps 5, 5 on the bottom side of the box are extended from the fold line on the lower side of the end panels 2, 2. The length (the left and right dimensions in FIG. 1) of the second flaps 5 and 5 on the bottom side of the box is slightly narrower than the width of the end panels 2 and 2, and the height (the vertical dimensions in FIG. 1) is The same as the first flaps 4 and 4 on the bottom side of the box.
[0021]
From the fold line on the upper side of the side panels 1 and 1, first flaps 6 and 6 on the upper surface side of the box are extended. The length of the first flaps 6 and 6 on the upper surface side of the box (the left and right dimensions in FIG. 1) is slightly narrower than the width of the side panels 1 and 1. The height of the first flaps 6 and 6 on the upper surface side of the box (the vertical dimension in FIG. 1) is substantially the same as the second flaps 7 and 7 on the upper surface side of the box described below.
[0022]
The second flaps 7 and 7 on the upper surface side of the box extend from the fold line on the upper side of the end panels 2 and 2. The length of the second flaps 7 on the upper surface side of the box (left and right dimensions in FIG. 1) is slightly narrower than the width of the end panels 2 and 2, and the height (up and down dimensions in FIG. 1) is the same as that described above. It is lower than 1/2 of the width of the end panels 2 and 2.
[0023]
The shape of both sides of the first flaps 6, 6 on the upper surface side of the box is symmetric with respect to the longitudinal line at the center of the first flaps 6, 6. The side of the base portion connected to the side panels 1 and 1 through the folding lines on both sides of the first flaps 6 and 6 rises perpendicularly to the folding line, and further opens in a lateral direction through the edge of the arc. It reaches the cuts 8 and 8. On the upper side of the notches 9, 9 are pointed tab-shaped protrusions 9, 9. The widths of the first flaps 6 and 6 at the apex portions of the protrusions 9 and 9 are slightly narrower than the widths at the side portions of the base portion. Further, on the protrusions 9 and 9, there are inclined edges 12 and 12 having an oblique angle of 45 °. The inclined edges 12 and 12 are arranged on the side panel 1 so that the front end sides of the first flaps 6 and 6 are narrowed. 1 is connected to the edge of the first flaps 6 and 6 parallel to the fold line with 1 at an angle of 45 °.
[0024]
The shape of both sides of the second flaps 7, 7 on the upper surface side of the box is also symmetric with respect to the longitudinal line at the center of the second flaps 7, 7. The side of the base that is connected to the end panels 2 and 2 via the fold lines on both sides of the second flaps 7 and 7 rises perpendicularly to the fold line and further passes through tab-shaped protrusions 11 and 11 having arc edges. To V-shaped cuts 10 and 10 that open upward. The upper sides of the notches 10 and 10 are sloped edges 13 and 13 having an oblique angle of 45 °, and the sloped edges 13 and 13 are arranged so that the tip side of the second flaps (7) and (7) is narrowed. It connects with the edge of the 2nd flaps 7 and 7 parallel to the broken line with the end panels 2 and 2 at an angle of 45 degrees.
[0025]
A packaging box is assembled from such a blank as follows.
First, all the folding lines between the side panels 1, 1, the end panels 2, 2 and the joining flap 3 are bent in the same direction at an angle of 90 °. Furthermore, the outer side surface of the joining flap 3 is applied to the inner surface of the end edge portion of the end panel 2 and fixed by means such as adhesion or stapling. Thereby, a square cylindrical body is formed by the side panels 1 and 1 and the end panels 2 and 2.
[0026]
Next, after the side panel 1, 1 and the end panel 2, 2 form a square cylindrical body, the upper surface of the box is closed.
First, as shown in FIG. 2, the 2nd flaps 7 and 7 are bend | folded inside a box. Thereafter, as shown in FIGS. 3 and 4, the first flaps 6, 6 are bent inside the box, and both end portions thereof are placed on both end portions of the second flaps 7, 7. In this state, the valley portions that are the V-shaped vertices of the notches 8 and 8 on both sides of the first flaps 6 and 6 and the V-shaped vertices of the second flaps 7 and 7 and the notches 10 and 10 are The notches 8, 8, 10, and 10 are formed in advance so that the valley portions are substantially at the same position.
[0027]
Next, in this state, as shown by an arrow in FIG. 3, when the end edges of the first flaps 6, 6 are pushed down, the leading edges of the second flaps 7, 7 are also pushed down. As a result, as shown in FIG. 5, the gradient edges 12 and 12 of the first flaps 6 and 6 approach the gradient edges 13 and 13 of the second flaps 7 and 7, and further match, and finally shift. The projections of one flap 6,6 enter below it from the sloped edges 13, 13 of the second flap 7,7. Then, if the force which the 1st flaps 6 and 6 were pushing down is remove | excluded, the 1st flaps 6 and 6 and the 2nd flaps 7 and 7 will be restored | restored by own elasticity, and will be in the state like FIG.
[0028]
In the state shown in FIG. 6, the V-shaped cuts 8 and 8 of the first flaps 6 and 6 and the V-shaped cuts 10 and 10 of the second flaps 7 and 7 are engaged with each other. At the same time, the tab-like projections 9 and 9 of the first flaps 6 and 6 are inserted under the second flaps 7 and 7, and the tab-like projections 11 and 11 of the second flaps 7 and 7 are inserted. It is inserted under the first flaps 6,6. Thus, the first flaps 6 and 6 and the second flaps 7 and 7 are fixed to the other flaps 6, 6, 7, 7 adjacent to each other at both ends thereof, and the side panels 1, 1 and the end on the upper surface are fixed. A portion near the panels 2 and 2 is partially closed. In this state, the central part of the upper surface of the box is open.
[0029]
After the top surface of the box is closed in this manner, storage items such as leeks and burdock are stored in the box from the bottom side of the opened box with the top surface of the box on the lower side, that is, with the top and bottom reversed from FIG. . In the state in which the stored items are stored in the box, the projections 9, 9, 11, and 11 of the first flaps 6 and 6 and the second flaps 7 and 7 are pressed from above by the stored items. The engagement between the side portions of the flaps 6 and 6 and the second flaps 7 and 7 is not easily disengaged.
[0030]
Next, when closing the bottom side of the box, first, the second flaps 5 and 5 on the bottom side of the box are bent at an angle of about 90 ° to the bottom side of the box. Next, the first flaps 4, 4 on the bottom side of the box are folded inside the 90 ° angle box and overlaid on the second flaps 5, 5. In this state, the first flaps 4, 4 are fixed to the second flaps 5, 5 by appropriate means such as adhesion, stapling, and adhesive tape application. Thereby, sealing of the bottom face of the box is completed.
When shipping the stored items, the bottom of the box is on the bottom and the top is on the top. In this state, the central portion of the upper surface of the box is open, so that the appearance of the stored items can be inspected from here. .
[0031]
Next, when opening the packaging box, with the bottom side of the box facing up, raise the first flaps 6 and 6 and the second flaps 7 and 7 in order, and open the bottom of the box, Take out the contents in it. Thereafter, with the upper surface side of the box facing upward, as shown by an arrow in FIG. 6, the edge side of the second flaps 7, 7 on the upper surface side of the box is pushed downward, and the second flaps 7, 7 Fold it down. Then, the leading edge side of the first flaps 6 and 6 is also pushed down, so that the gradient edges 13 and 13 of the second flaps 7 and 7 and the gradient edges 12 of the first flaps 6 and 6, as shown in FIG. 12, the projections of the first flaps 6 and 6 are disengaged from the slope edges 13 and 13 of the second flaps 7 and 7, so that the first flaps 6 and 6 have their own elasticity. To return. After that, when the pressing of the second flaps 6 and 6 is stopped and the force is released, the second flaps 7 and 7 are also restored by their own elasticity, as shown in FIG. 3 and FIG. The engagement state between the first flaps 6 and 6 and the second flaps 7 and 7 is released. Thereby, the upper surface or the bottom surface of the box can be opened.
[0032]
In the above-described example, as described above, the upper surface of the box is formed with the notches 8, 8, 10, 10 and the projections 9, 9, 11, and the first flaps 6, 6 and the second flaps 7, 7. Although the closed state is maintained by engaging with 11, the bottom side or only the bottom side is provided between the first flaps 4, 4 and the second flaps 5, 5 in the same manner as described above. It can also be set as the structure which hold | maintains a closed state.
[0033]
In the above example, terms such as “first flap” and “second flap” are used separately, but they only indicate a relative positional relationship. . For convenience, one pair of opposing flaps is simply referred to as a “first flap”, and the other opposing pair of flaps is merely a “second flap”.
[0034]
Furthermore, the terminology used separately for the side face and the end face of the hexahedron box, such as “side panel” and “end panel”, was used, but the side face and end face of the box are terms that indicate relative positional relationships and face each other. If a certain pair of vertical surfaces are used as side surfaces, the other pair of vertical surfaces facing each other perpendicular to these surfaces are merely end surfaces. As is apparent from the case of a box having a square plane, the side surfaces and end surfaces of the box having a legislative shape are only meaningful for distinguishing a pair of opposing vertical surfaces.
[0035]
【The invention's effect】
As described above, in the packaging box according to the present invention, it is possible to open and close the top or bottom of the box without using adhesives, staples, adhesive tapes, etc. A packaging box that can be easily evaluated for appearance can be obtained. .
[Brief description of the drawings]
FIG. 1 shows an embodiment of a packaging box according to the present invention, and is a development view of a blank in a state where a corrugated cardboard or the like is cut to assemble a packaging box and a broken line is inserted.
In the embodiment of the packaging container, a second flap on the upper surface side of the box is formed in order to join the end portions of the side panel and the end panel to form a square cylindrical body portion and to close the upper surface thereof. It is a perspective view in the state where it fell to the upper surface side of the box.
3 is a perspective view showing a state in which the first flap on the upper surface side of one box is further lowered to the upper surface side of the box in the embodiment of the packaging container. FIG.
4 is a plan view of the same state as FIG. 3 in the embodiment of the packaging container. FIG.
5 is a plan view showing a state in which the end edge of the first flap is pushed in as shown by an arrow from the state of FIG. 3 in the embodiment of the packaging container. FIG.
FIG. 6 is a perspective view showing a state in which the upper surface side of the box is closed in the embodiment of the packaging container.
[Explanation of symbols]
1 Side panel 2 End panel 6 First flap 7 on the upper side of the box 7 Second flap 8 on the upper side of the box 9 Cut of the first flap on the upper side of the box 9 First flap on the upper side of the box Protrusions 10 First flap cut on the top side of the box 11 Second flap cut on the top side of the box 12 Gradient edge of the first flap on the top side of the box 13 First flap on the top side of the box The gradient edge of

Claims

It is a box for storing the stored items therein, and the side panels (1), (1) constituting a pair of opposing side surfaces, and the end panels (2), (2) constituting a pair of opposing end faces of the box ) Are alternately connected via a broken line, the side edges of the end panel (1) and the end panel (2) are joined to each other, and the side panels (1), (1) and the end panels (2), ( 2) First flaps (6), (6) and second flaps (7), (7) for closing the bottom surface and / or top surface of the box from the fold line on the upper side and / or the lower side are respectively extended. A pair of opposing first flaps (6), (6) and a pair of opposing second flaps (7), (7) are folded back and forth inside the box, and adjacent first flaps (6 ), (6) and the second flaps (7), (7) are engaged with each other to close the top and / or bottom of the box. In the packaging box, when the first flaps (6), (6) and the second flaps (7), (7) are folded inside the box, the overlapping positions at both ends thereof are defined as valleys. V-shaped cuts (8), (8), (10), (10) are provided in the first flap (6), (6) and the second flap (7), (7), respectively. Cuts (8) in the first flaps (6), (6), tab-like projections (9) inserted below the second flaps (7), (7) on the edge side from (8), (9) is provided, and the second flaps (7) and (7) are notched (10) and tabs that are inserted below the first flaps (6) and (6) on the folding line side from (10) projections (11), (11) is provided, the first flap (6), the tab-like projections (6) (9), (9) the first both side edges of the previous end edge side The slopes (12) and (12) are cut obliquely so that the front ends of the flaps (6) and (6) become narrower, and the second flaps (7) and (7) are cut (10) and (10). ) Packaging characterized in that both side edges on the edge side ahead are inclined edges (13) and (13) which are obliquely cut so that the tip side of the second flap (7) and (7) is narrowed. Box.

The slope edges (12), (12) of the first flaps (6), (6) are inclined at 45 ° with respect to the edges of the first flaps 6, 6 parallel to the fold line with the side panels 1, 1, Gradient edges (13), (13) of the second flap (7), (7 ) The packaging box according to claim 1, characterized in that the oblique 45 ° to fold lines parallel to the edges of the second flaps 7,7 of the end panel 2, 2 a.