JP3735930B2

JP3735930B2 - Hinged paper box

Info

Publication number: JP3735930B2
Application number: JP05887996A
Authority: JP
Inventors: 由起子山崎; 利恵南部; 秀久時田
Original assignee: Toppan Inc
Current assignee: Toppan Inc
Priority date: 1996-03-15
Filing date: 1996-03-15
Publication date: 2006-01-18
Anticipated expiration: 2016-03-15
Also published as: JPH09249220A

Description

【０００１】
【発明の属する技術分野】
本発明は、粒状菓子類や顆粒状飲料や粉末洗剤などを収容する、上方を開放した直方体状に製箱した紙箱本体と、下方を開放した偏平直方体状に製箱した紙箱蓋体とを、紙箱本体の後面板の上部に、紙箱蓋体の後面接続片を貼着して接続したヒンジ開閉式の紙箱の改良に関する。
【０００２】
【従来の技術】
従来から、粒状菓子類や顆粒状飲料や粉末洗剤などを収容する、図４に示すような、前面板３０と左右の側面板４０・６０と後面板５０と糊代片５５と折込み片３１・４１・６１・５１と底面板群７０・７０・７０・７０とを、それぞれ折り目線を介して連設して、これらの折込み片３１・４１・６１・５１をそれぞれ折込んで貼着して、上方を開放した直方体状に製箱した紙箱本体と、蓋面板２０と前面蓋板３２と製箱片３４・３４と左右の側面蓋板４２・６２と製箱片４４・６４と後面蓋板５２とを、それぞれ折り目線を介して連設して、また後面蓋板５２の下辺に、後面接続片５３を谷折り線ｃを介して連設して、下方を開放した偏平直方体状に製箱した紙箱蓋体とを、紙箱本体の後面板５０の上部に、紙箱蓋体の後面接続片５３を貼着して接続した、ヒンジ開閉式の紙箱が一般に用いられている。
【０００３】
また従来から、特に小型濃縮洗剤と通称される粉末洗剤などを収容する、図５に示すような、下方を開放した偏平直方体状のプラスチック製の蓋面体８０と、封緘紙を貼着した長方形枠状のプラスチック製の枠状体８１と、適宜の前面板３０と左右の側面板４０・６０と後面板５０と底面板７０などとを連設した、上方を開放した直方体状の板紙製の容器本体８２とを、このプラスチック製の蓋面体８０とプラスチック製の枠状体８１とをヒンジ構造８３・８３を介して一体成形して、プラスチック製の枠状体８１と板紙製の容器本体８２の上端部とを強固に接着した、ヒンジ開閉式の包装容器が広く用いられている。
【０００４】
【発明が解決しようとする課題】
ところが従来の、図４に示すヒンジ開閉式の紙箱については、紙箱蓋体の後面蓋板５２の下辺に、後面接続片５３を連設した谷折り線ｃを介してのヒンジ構造であるために、この谷折り線ｃの元に戻ろうとする反発力が問題であって、紙箱蓋体を開蓋した時に、谷折りしていない谷折り線ｃの元に戻ろうとする反発力によって、紙箱蓋体の開放状態をそのまま保持できないことが多くて、また紙箱蓋体を閉蓋した時に、一旦谷折りされた谷折り線ｃの元に戻ろうとする反発力によって、紙箱蓋体の閉止状態をそのまま保持できないことが多くて、決して使い易いヒンジ開閉式の紙箱ではなかった。
【０００５】
また従来の、図５に示すヒンジ開閉式の包装容器については、開蓋や閉蓋などが容易で確実な、体裁が良くて使い易い包装容器であるものの、プラスチック製の蓋面体８０とプラスチック製の枠状体８１と板紙製の容器本体８２とから成るヒンジ開閉式の包装容器であるために、作製工程・費用などに問題があって、また使用後のプラスチック材料の廃棄処理にも問題があった。
【０００６】
そこで本発明の目的とするところは、粒状菓子類や顆粒状飲料や粉末洗剤などを収容する、作製工程・費用などが廉価で使用後の廃棄処理にも問題がない板紙製の、開蓋や閉蓋などが容易で確実な、使い易いヒンジ開閉式の紙箱を提供することにある。
【０００７】
【課題を解決するための手段】
本発明のヒンジ開閉式の紙箱は、図１・図２・図３に示すように、前面板３０と左右の側面板４０・６０と後面板５０と糊代片５５と、この上方に折込み片３１・４１・６１・５１と下辺に底面板群７０・７０・７０・７０とを、それぞれ折り目線（符号がない１点鎖線；以下同じ）を介して連設して、これら上方の折込み片３１・４１・６１・５１をそれぞれ内面側に折込んで貼着して、上方を開放した直方体状に製箱した紙箱本体と、蓋面板２０と前面蓋板３２と製箱片３４・３４と左右の側面蓋板４２・６２と製箱片４４・６４と後面蓋板５２とを、それぞれ折り目線を介して連設して、また後面蓋板５２の下辺に、後面接続片５３を谷折り線ｃを介して連設して、下方を開放した偏平直方体状に製箱した紙箱蓋体とを、紙箱本体の後面板５０の上部に、紙箱蓋体の後面接続片５３を貼着して接続したヒンジ開閉式の紙箱において、紙箱本体の後面板５０の中央上部に、横長形状の開蓋繋止孔１４を設けて、また紙箱蓋体の後面接続片５３を連設した谷折り線ｃの中央部に、深さが２ｍｍ程度のＵ字状の開蓋繋止突起１５を設けたヒンジ開閉式の紙箱である。
【０００８】
加えて、本発明のヒンジ開閉式の紙箱は、図２Ａに示すように、前記の紙箱蓋体の、前面蓋板３２と左右の側面蓋板４２・６２との下辺（図２Ａでは上辺又は左右辺）に、折込み片３３・４３・６３をそれぞれ折り目線を介して連設して、これらの折込み片３３・４３・６３をそれぞれ折込んで貼着したヒンジ開閉式の紙箱である。
【０００９】
【作用】
本発明のヒンジ開閉式の紙箱においては、上方を開放した直方体状に製箱した紙箱本体と、下方を開放した偏平直方体状に製箱した紙箱蓋体とを、紙箱本体の後面板の上部に、紙箱蓋体の後面接続片を貼着して接続した、前述した従来と同様のヒンジ開閉式の紙箱において、紙箱本体の後面板の中央上部に、横長形状の開蓋繋止孔を設けて、また紙箱蓋体の後面接続片を連設した谷折り線の中央部に、深さが２ｍｍ程度のＵ字状の開蓋繋止突起を設けたことによって、紙箱蓋体の後面蓋板の下辺に、後面接続片を連設した谷折り線を介してのヒンジ構造において、谷折り線の中央部に設けた開蓋繋止突起が、この谷折り線の元に戻ろうとする反発力を弱めるとともに、紙箱蓋体の深さが２ｍｍ程度のＵ字状の開蓋繋止突起が、紙箱本体の横長形状の開蓋繋止孔を介して、後面板の上部内面側に折込んで貼着した折込み片の内面側を押えて、紙箱蓋体を繋止してブレーキのように作用するものであって、紙箱蓋体を持上げて開蓋した時に、開蓋繋止突起がブレーキのように作用して、紙箱蓋体の開蓋状態をそのままの位置に保持できるものであって、また紙箱蓋体を押えて再び閉蓋した時には、開蓋繋止突起のブレーキ作用が解除されて、紙箱蓋体を容易に閉蓋できるものであって、開蓋や閉蓋などが容易で確実な、使い易いヒンジ開閉式の紙箱を提供することができる。
【００１０】
なお、本発明のヒンジ開閉式の紙箱における、Ｕ字状の開蓋繋止突起の深さについては、２ｍｍ程度（紙厚＋１〜２ｍｍ）が適切であって、紙箱蓋体を開蓋・閉蓋した時に、深さが１ｍｍ以下であると、開蓋繋止突起が折込み片の内面側に届かない恐れがあって、また深さが３ｍｍ以上であると、開蓋繋止突起が折込み片の内面側に押されて曲ってしまう恐れがあって、また横長形状の開蓋繋止孔の上下幅については、開蓋繋止突起が開蓋繋止孔を介して折込み片の内面側を押えるために、深さが２ｍｍ程度のＵ字状の開蓋繋止突起より、上下に１ｍｍ以上広げることが望ましい。
【００１１】
また、本発明のヒンジ開閉式の紙箱においては、紙箱本体の後面板の中央上部に、横長形状の開蓋繋止孔を設けたにもかかわらず、折込み片を後面板の上部内面側に折込んで貼着したことによって、この折込み片が横長形状の開蓋繋止孔を塞いで、粉漏れなどの恐れがないヒンジ開閉式の紙箱が得られる。
【００１２】
加えて、本発明のヒンジ開閉式の紙箱においては、前記の紙箱蓋体の、前面蓋板と左右の側面蓋板との下辺に、折込み片をそれぞれ折り目線を介して連設して、これらの折込み片をそれぞれ折込んで貼着したことによって、下方を開放した偏平直方体状に製箱した紙箱蓋体の、前面蓋板と左右の側面蓋板とを二重にして強化したものであって、紙箱蓋体の保形性などが優れた、使い易いヒンジ開閉式の紙箱を提供することができる。
【００１３】
【発明の実施の形態】
本発明のヒンジ開閉式の紙箱においては、後述する実施例に示すように、通常の印刷をした適宜のコートボール紙などの板紙を用いて、打抜型を用いた通常の打抜工程で、無駄がない長方形状の紙箱本体のブランクと紙箱蓋体のブランクとを作製して、次に従来の機械的な製箱工程で、上方を開放した直方体状に製箱した紙箱本体と下方を開放した偏平直方体状に製箱した紙箱蓋体とを作製して、続いて従来と同様の機械的な充填工程で、内容物を収容した後に、同時に紙箱本体の後面板５０の上部に、紙箱蓋体の後面接続片５３を貼着して接続できる、作製工程・費用などが廉価であって、使用後の廃棄処理にも問題がない板紙製のヒンジ開閉式の紙箱を提供することができる。
【００１４】
【実施例】
図１は、本発明の実施例における、ヒンジ開閉式の紙箱の斜視図である。
また図２Ａは、実施例のヒンジ開閉式の紙箱における、紙箱蓋体のブランクの平面図であって、図２Ｂは、紙箱本体のブランクの平面図である。
さらに図３Ａは、実施例のヒンジ開閉式の紙箱における、紙箱蓋体を開蓋する前と再び閉蓋した時との状態を示す断面図であって、図３Ｂは、紙箱蓋体を開蓋した時の状態を示す断面図である。
【００１５】
すなわち、前面板３０と左右の側面板４０・６０と後面板５０と糊代片５５と折込み片３１・４１・６１・５１と貼着式の底面板群７０・７０・７０・７０とを、それぞれ折り目線を介して連設して、後面板５０の中央上部に、５×３０ｍｍの横長形状の開蓋繋止孔１４を設けた、図２Ｂに示す紙箱本体のブランクであって、蓋面板２０と前面蓋板３２と製箱片３４・３４と左右の側面蓋板４２・６２と製箱片４４・６４と後面蓋板５２とを、それぞれ折り目線を介して連設して、また後面蓋板５２の下辺に、後面接続片５３を谷折り線ｃを介して連設して、この後面接続片５３を連設した谷折り線ｃの中央部に、２×２８ｍｍのＵ字状の開蓋繋止突起１５を設けて、加えて前面蓋板３２と左右の側面蓋板４２・６２との下辺（図２Ａでは上辺又は左右辺）に、折込み片３３・４３・６３をそれぞれ折り目線を介して連設した、図２Ａに示す紙箱蓋体のブランクであって、中間層に３０μｍのポリエチレン層を積層した４５０ｇ／ｍ² のコートボール紙（ポリサンド紙；大昭和製紙株式会社製）を用いて、表面側に通常の印刷をして、打抜型を用いた通常の打抜工程で、本実施例のヒンジ開閉式の紙箱における、紙箱本体のブランクと紙箱蓋体のブランクとを作製した。
【００１６】
次に、図２Ｂに示す紙箱本体のブランクの、全ての符号がない１点鎖線で示す折り目線を山折り（印刷をした表面側が山になる；以下同じ）して、従来の機械的な製箱工程で、まず糊代片５５を右の側面板６０に貼着して、また貼着式の底面板群７０・７０・７０・７０をそれぞれ貼着して、さらに折込み片３１・４１・６１・５１を前面板３０と左右の側面板４０・６０と後面板５０との上部内面側にそれぞれ折込んで貼着して、縦・横・高さが７８×１３５×９６ｍｍの、上方を開放した直方体状に製箱した紙箱本体を作製した。
【００１７】
また、図２Ａに示す紙箱蓋体のブランクの、全ての符号がない１点鎖線で示す折り目線を山折りして、同様に従来の機械的な製箱工程で、まず製箱片３４・３４・４４・６４を左右の側面蓋板４２・６２と後面蓋板５２とにそれぞれ貼着して、また折込み片３３・４３・６３を前面蓋板３２と左右の側面蓋板４２・６２との内面側にそれぞれ折込んで貼着して、縦・横・高さが８１×１３９×２０ｍｍの、下方を開放した偏平直方体状に製箱した紙箱蓋体を作製した。
【００１８】
続いて、従来と同様の機械的な充填工程で、上方を開放した直方体状に製箱した紙箱本体に、内容物である小型濃縮洗剤を収容して、防湿性を有する図示しない封緘紙を貼着するなどした後に、下方を開放した偏平直方体状に製箱した紙箱蓋体を被せながら、紙箱本体の後面板５０の上部に、紙箱蓋体の予め感熱接着剤を塗布した後面接続片５３を熱圧着して強固に接続して、本発明の実施例における、図１・図３Ａに示すヒンジ開閉式の紙箱を作製した。
【００１９】
本実施例の、図１・図３Ａに示すヒンジ開閉式の紙箱において、図３Ｂに示すように、紙箱蓋体を持上げて開蓋したところ、紙箱蓋体の２×２８ｍｍのＵ字状の開蓋繋止突起１５が、紙箱本体の５×３０ｍｍの横長形状の開蓋繋止孔１４を介して、後面板５０の上部内面側に折込んで貼着した折込み片５１の内面側を押えて、紙箱蓋体を繋止してブレーキのように作用して、紙箱蓋体の開蓋状態をそのままの位置に保持できるものであって、また図３Ａに示すように、紙箱蓋体を押えて再び閉蓋したところ、開蓋繋止突起１５のブレーキ作用が解除されて、紙箱蓋体を容易に閉蓋できるものであって、開蓋や閉蓋などが容易で確実な、使い易いヒンジ開閉式の紙箱が得られた。
【００２０】
加えて、本実施例のヒンジ開閉式の紙箱においては、折込み片３１・４１・６１・５１を前面板３０と左右の側面板４０・６０と後面板５０との上部内面側にそれぞれ折込んで貼着したことによって、また折込み片３３・４３・６３を前面蓋板３２と左右の側面蓋板４２・６２との内面側にそれぞれ折込んで貼着したことによって、図３Ａ・図３Ｂに示すように、上方を開放した直方体状に製箱した紙箱本体の、前面板３０と左右の側面板４０・６０と後面板５０との上部を二重にして強化したものであって、また下方を開放した偏平直方体状に製箱した紙箱蓋体の、前面蓋板３２と左右の側面蓋板４２・６２とを二重にして強化したものであって、紙箱本体と紙箱蓋体との保形性などが優れた、使い易いヒンジ開閉式の紙箱が得られた。
【００２１】
【発明の効果】
以上、作用及び実施例に示すとおり、本発明のヒンジ開閉式の紙箱においては、上方を開放した直方体状に製箱した紙箱本体と、下方を開放した偏平直方体状に製箱した紙箱蓋体とを、紙箱本体の後面板の上部に、紙箱蓋体の後面接続片を貼着して接続したヒンジ開閉式の紙箱において、紙箱本体の後面板の中央上部に、横長形状の開蓋繋止孔を設けて、また紙箱蓋体の後面接続片を連設した谷折り線の中央部に、深さが２ｍｍ程度のＵ字状の開蓋繋止突起を設けたことによって、紙箱蓋体を持上げて開蓋した時に、紙箱蓋体の深さが２ｍｍ程度のＵ字状の開蓋繋止突起が、紙箱本体の横長形状の開蓋繋止孔を介して、後面板の上部内面側に折込んで貼着した折込み片の内面側を押えて、紙箱蓋体を繋止してブレーキのように作用して、紙箱蓋体の開蓋状態をそのままの位置に保持できるものであって、また紙箱蓋体を押えて再び閉蓋した時には、開蓋繋止突起のブレーキ作用が解除されて、紙箱蓋体を容易に閉蓋できるものであって、粒状菓子類や顆粒状飲料や粉末洗剤などを収容する、作製工程・費用などが廉価で使用後の廃棄処理にも問題がない板紙製の、開蓋や閉蓋などが容易で確実な、使い易いヒンジ開閉式の紙箱を提供することができる。
【図面の簡単な説明】
【図１】本発明の実施例における、ヒンジ開閉式の紙箱の斜視図である。
【図２】図２Ａは、実施例のヒンジ開閉式の紙箱における、紙箱蓋体のブランクの平面図であって、図２Ｂは、紙箱本体のブランクの平面図である。
【図３】図３Ａは、実施例のヒンジ開閉式の紙箱における、紙箱蓋体を開蓋する前と再び閉蓋した時との状態を示す断面図であって、図３Ｂは、紙箱蓋体を開蓋した時の状態を示す断面図である。
【図４】従来の、ヒンジ開閉式の紙箱の斜視図である。
【図５】従来の、ヒンジ開閉式の包装容器の斜視図である。
【符号の説明】
１４ …開蓋繋止孔
１５ …開蓋繋止突起
２０ …蓋面板
３０ …前面板
３１・４１・６１・５１ …折込み片
３２ …前面蓋板
３３・４３・６３ …折込み片
３４・４４・６４ …製箱片
４０・６０ …左右の側面板
４２・６２ …左右の側面蓋板
５０ …後面板
５２ …後面蓋板
５３ …後面接続片
５５ …糊代片
７０ …底面板群・底面板
８０ …プラスチック製の蓋面体
８１ …プラスチック製の枠状体
８２ …板紙製の容器本体
８３ …ヒンジ構造
ｃ …谷折り線[0001]
BACKGROUND OF THE INVENTION
The present invention accommodates granular confectionery, granular beverages, powder detergents, and the like, a paper box body boxed in a rectangular parallelepiped shape with the top opened, and a paper box lid body boxed in a flat rectangular solid shape with the bottom opened, The present invention relates to an improvement in a hinged open / closed paper box in which a rear connection piece of a paper box lid is attached to and connected to an upper part of a rear plate of a paper box body.
[0002]
[Prior art]
Conventionally, the front plate 30, the left and right side plates 40, 60, the rear plate 50, the margin piece 55, and the folding piece 31. 41, 61, 51 and the bottom plate group 70, 70, 70, 70 are connected to each other through a crease line, and the folded pieces 31, 41, 61, 51 are respectively folded and adhered, A paper box body boxed in a rectangular parallelepiped shape with the top opened, a lid plate 20, a front lid plate 32, box-making pieces 34 and 34, left and right side lid plates 42 and 62, box-making pieces 44 and 64, and a rear lid plate 52 Are connected to each other via a crease line, and a rear connection piece 53 is connected to the lower side of the rear cover plate 52 via a valley fold line c, so that a box is formed in a flat rectangular parallelepiped shape with the lower part opened. The rear connection piece 53 of the paper box lid is pasted on the rear plate 50 of the paper box main body. And connected to, paper box hinge opening and closing type is generally used.
[0003]
Conventionally, a flat rectangular parallelepiped-shaped plastic lid body 80 having an open lower portion and a rectangular frame in which sealing paper is pasted as shown in FIG. A rectangular parallelepiped plastic frame-like body 81, a suitable front plate 30, left and right side plates 40, 60, a rear plate 50, a bottom plate 70 and the like, and a rectangular parallelepiped paperboard container open upward. The main body 82 is integrally formed with the plastic lid surface 80 and the plastic frame body 81 via hinge structures 83 and 83, so that the plastic frame body 81 and the paperboard container main body 82 are formed. A hinged open / close packaging container that is firmly bonded to the upper end is widely used.
[0004]
[Problems to be solved by the invention]
However, the conventional hinged open / close type paper box shown in FIG. 4 has a hinge structure via a valley fold line c in which a rear connection piece 53 is continuously provided on the lower side of the rear cover plate 52 of the paper box lid. The repulsive force that tries to return to the origin of the valley fold line c is a problem. When the paper box lid is opened, the repulsive force that tries to return to the origin of the valley fold line c that is not valley-folded, In many cases, the open state of the paper box cannot be maintained as it is, and when the paper box cover is closed, the closed state of the paper box cover remains as it is due to the repulsive force that tries to return to the valley fold line c once folded. There were many things that could not be held, and it was never an easy-to-use hinged paper box.
[0005]
Further, the conventional hinged opening and closing type packaging container shown in FIG. 5 is an easy and reliable packaging container that can be easily opened and closed, and has a good appearance and is easy to use. This is a hinged opening / closing type packaging container made up of a frame body 81 and a paperboard container body 82, so there are problems in manufacturing process and cost, and there is also a problem in disposal of plastic materials after use. there were.
[0006]
Therefore, the object of the present invention is to contain a granular confectionery, a granular beverage, a powdered detergent, etc., which is made of paperboard, which has a low production process and cost, and has no problem in disposal after use. An object of the present invention is to provide an easy-to-use hinged open / close paper box that is easy to close and secure.
[0007]
[Means for Solving the Problems]
As shown in FIGS. 1, 2, and 3, the hinged open / close type paper box of the present invention includes a front plate 30, left and right side plates 40, 60, a rear plate 50, a glue piece 55, and a folded piece above this. 31, 41, 61, 51 and bottom plate groups 70, 70, 70, and 70 are connected to each other via crease lines (one-dot chain lines having no reference numerals; the same applies hereinafter), and the upper folding pieces 31, 41, 61, and 51 are folded inward on the inner surface side and attached to each other, and the box body is formed into a rectangular parallelepiped shape with the top opened, the lid plate 20, the front lid plate 32, the box pieces 34 and 34, and left and right The side cover plates 42 and 62, the box-making pieces 44 and 64, and the rear cover plate 52 are connected to each other via a crease line, and the rear connection piece 53 is formed in a valley fold line on the lower side of the rear cover plate 52. a paper box lid formed in a flat rectangular parallelepiped shape with the lower part open, and connected to the rear of the paper box body. In a hinged open / closed paper box connected by attaching a rear connection piece 53 of the paper box lid to the upper part of the plate 50, a horizontally long open lid locking hole 14 is provided at the upper center of the rear plate 50 of the paper box body. In addition, the paper box lid is a hinged open / close type paper box provided with a U-shaped open lid locking projection 15 having a depth of about 2 mm at the center of the valley fold line c where the rear connection piece 53 is continuously provided. .
[0008]
In addition, as shown in FIG. 2A, the hinged open / close type paper box of the present invention has a lower side (front side or left and right side in FIG. 2A) of the front side cover plate 32 and the left and right side cover plates 42 and 62 of the paper box cover. A folding / opening-type paper box in which folding pieces 33, 43, and 63 are connected to each other via a crease line, and the folding pieces 33, 43, and 63 are folded and adhered to each other.
[0009]
[Action]
In the hinged open / close type paper box of the present invention, a paper box body made in a rectangular parallelepiped shape with the upper part opened and a paper box lid body made in a flat rectangular shape with the lower part opened are formed on the upper part of the rear plate of the paper box body. In the hinged open / closed paper box similar to the conventional one, which is attached by connecting the rear connection piece of the paper box lid body, a horizontally long open lid locking hole is provided at the upper center of the rear plate of the paper box body. In addition, by providing a U-shaped opening locking projection having a depth of about 2 mm at the center of the valley fold line where the rear connection piece of the paper box lid is continuously provided, the rear cover plate of the paper box lid In the hinge structure through the valley fold line where the rear connection piece is continuously provided on the lower side, the lid-opening locking protrusion provided at the center of the valley fold line has a repulsive force to return to the original of the valley fold line. As the paper box lid is weakened, the U-shaped lid locking protrusion with a depth of about 2 mm is Press the inner surface side of the folded piece that is folded and stuck to the upper inner surface side of the rear plate through the open lid locking hole, and acts like a brake by locking the paper box lid body When the paper box lid is lifted and opened, the lid locking projections act like a brake so that the open state of the paper box lid can be held in the same position. When pressed and closed again, the brake action of the opening locking projection is released and the paper box lid can be easily closed. The hinge is easy to open and close, and is easy to use. An openable paper box can be provided.
[0010]
In addition, about 2 mm (paper thickness + 1-2 mm) is suitable for the depth of the U-shaped opening and closing projection in the hinged paper box of the present invention, and the paper box lid is opened and closed. When the lid is closed, if the depth is 1 mm or less, there is a fear that the opening lid locking projection may not reach the inner surface of the folded piece, and if the depth is 3 mm or more, the lid opening locking projection is the folded piece. The upper and lower widths of the oblong lid opening and closing holes are not fixed to the inner surface of the folded piece through the opening and closing holes. In order to hold down, it is desirable to extend 1 mm or more above and below the U-shaped lid-opening locking projection having a depth of about 2 mm.
[0011]
In addition, in the hinged open / close type paper box of the present invention, the folded piece is folded on the upper inner surface side of the rear plate even though the oblong opening-closing locking hole is provided at the center upper portion of the rear plate of the paper box body. As a result of the sticking, the folded piece closes the oblong opening and closing hole, so that a hinged open / closed paper box is obtained without fear of powder leakage.
[0012]
In addition, in the hinged open / close type paper box of the present invention, the folding pieces are connected to the lower sides of the front cover plate and the left and right side cover plates of the paper box cover body through crease lines, respectively. Each of the folded pieces of paper was folded and adhered to each other, thereby reinforcing the paper box lid body that was made into a flat rectangular shape with the lower part opened, by duplicating the front lid plate and the left and right side lid plates. Further, it is possible to provide an easy-to-use hinged paper box that has excellent shape retention of the paper box lid.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
In the hinged open / close type paper box of the present invention, as shown in the examples to be described later, a normal punching process using a punching die is used in a normal punching process using an appropriate printed board such as coated cardboard. A rectangular paper box body blank and a paper box lid blank were prepared, and then the paper box body boxed in a rectangular parallelepiped shape with the upper part opened and the lower part opened in the conventional mechanical box making process. A paper box lid body produced in the shape of a flat rectangular parallelepiped is manufactured, and subsequently the contents are accommodated in a mechanical filling process similar to the conventional one, and at the same time, the paper box lid body is placed on the rear plate 50 of the paper box body. It is possible to provide a paperboard hinge-opening type paper box that can be attached by connecting the rear connection piece 53 and that is inexpensive in production process and cost and has no problem in disposal after use.
[0014]
【Example】
FIG. 1 is a perspective view of a hinged paper box in an embodiment of the present invention.
FIG. 2A is a plan view of a blank of the paper box lid in the hinged open / close type paper box of the embodiment, and FIG. 2B is a plan view of the blank of the paper box body.
Further, FIG. 3A is a cross-sectional view showing a state of the hinged open / close type paper box before and after the paper box lid is opened, and FIG. 3B is a diagram showing the state where the paper box lid is opened. It is sectional drawing which shows the state at the time of having carried out.
[0015]
That is, the front plate 30, the left and right side plates 40, 60, the rear plate 50, the glue piece 55, the folding pieces 31, 41, 61, 51, and the adhesive bottom plate group 70, 70, 70, 70, 2B is a blank of the paper box main body shown in FIG. 2B, which is provided continuously through a crease line and is provided with a 5 × 30 mm horizontally long lid opening and closing hole 14 at the center upper portion of the rear plate 50. 20, the front cover plate 32, the box-making pieces 34 and 34, the left and right side cover plates 42 and 62, the box-making pieces 44 and 64, and the rear cover plate 52 are connected to each other through crease lines, respectively. A rear connection piece 53 is connected to the lower side of the cover plate 52 via a valley fold line c, and a 2 × 28 mm U-shape is formed at the center of the valley fold line c where the rear connection piece 53 is connected. An opening lid locking projection 15 is provided, and in addition, the lower side of the front lid plate 32 and the left and right side lid plates 42 and 62 (the upper side in FIG. 2A). Or a blank of the paper box lid shown in FIG. 2A, in which folding pieces 33, 43, and 63 are connected to each other via a crease line, and a polyethylene layer of 30 μm is laminated on the intermediate layer. ^Using the coated cardboard of ² (poly sand paper; manufactured by Daishowa Paper Co., Ltd.), the normal printing is performed on the surface side, and in the normal punching process using the punching die, the hinge opening / closing type of this example A blank of the paper box body and a blank of the paper box lid in the paper box were produced.
[0016]
Next, a crease line indicated by a one-dot chain line having no reference numerals in the blank of the paper box main body shown in FIG. 2B is mountain-folded (the printed surface side becomes a mountain; the same applies hereinafter), and a conventional mechanical product is manufactured. In the box process, first, the adhesive margin piece 55 is attached to the right side plate 60, and adhesive type bottom plate groups 70, 70, 70, and 70 are attached, respectively, and the folded pieces 31, 41, 61 and 51 are folded and attached to the upper inner surface side of the front plate 30, the left and right side plates 40 and 60, and the rear plate 50, respectively, and the vertical, horizontal and height are 78 x 135 x 96mm, and the upper part is opened. A paper box body made into a rectangular parallelepiped shape was produced.
[0017]
Further, the crease line indicated by the one-dot chain line without any reference numerals of the blank of the paper box lid shown in FIG. 2A is folded in a mountain, and similarly in the conventional mechanical box making process, first, the box making pieces 34 and 34 are formed. 44 and 64 are attached to the left and right side cover plates 42 and 62 and the rear cover plate 52, respectively, and the folding pieces 33, 43 and 63 are connected to the front cover plate 32 and the left and right side cover plates 42 and 62, respectively. A paper box lid body was produced by folding and sticking to the inner surface side to make a box with a vertical, horizontal, and height of 81 × 139 × 20 mm and an open bottom.
[0018]
Subsequently, in a mechanical filling process similar to the conventional case, a small concentrated detergent as a content is accommodated in a paper box body made in a rectangular parallelepiped shape with the upper part opened, and a sealing paper (not shown) having moisture resistance is pasted. After being attached, a rear connection piece 53 is applied to the upper part of the rear plate 50 of the paper box main body with a heat-sensitive adhesive applied in advance to the upper part of the rear plate 50 of the paper box main body, while covering the paper box cover box that is formed in a flat rectangular shape with the lower part opened. The hinged open / close type paper box shown in FIGS. 1 and 3A according to the embodiment of the present invention was manufactured by thermocompression bonding.
[0019]
In the hinged open / close type paper box of this embodiment shown in FIGS. 1 and 3A, as shown in FIG. 3B, when the paper box lid is lifted and opened, a 2 × 28 mm U-shaped opening of the paper box lid is opened. The lid locking projection 15 presses the inner surface side of the folded piece 51 that is folded and stuck to the upper inner surface side of the rear plate 50 through the 5 × 30 mm horizontally long open lid locking hole 14 of the paper box body, The paper box lid is locked and acts like a brake so that the opened state of the paper box lid can be held in its position, and as shown in FIG. 3A, the paper box lid is pressed again. When the lid is closed, the brake action of the opening and closing projection 15 is released, and the paper box lid can be easily closed. The hinge opening and closing type is easy and reliable to open and close. A paper box was obtained.
[0020]
In addition, in the hinged open / close type paper box of the present embodiment, the folding pieces 31, 41, 61, 51 are folded and pasted on the upper inner surfaces of the front plate 30, the left and right side plates 40, 60, and the rear plate 50, respectively. As shown in FIGS. 3A and 3B, the folded pieces 33, 43, and 63 are folded and attached to the inner surfaces of the front cover plate 32 and the left and right side cover plates 42 and 62, respectively. The upper part of the front plate 30, the left and right side plates 40, 60 and the rear plate 50 of the paper box body made in a rectangular parallelepiped shape with the upper part opened is doubled and the lower part is opened. A paper box lid made in the shape of a flat rectangular parallelepiped is reinforced by doubling the front lid plate 32 and the left and right side lid plates 42 and 62, and the shape retention between the paper box body and the paper box lid body, etc. An easy-to-use hinged open / closed paper box was obtained.
[0021]
【The invention's effect】
As described above, as shown in the operation and examples, in the hinged open / close type paper box of the present invention, a paper box body boxed in a rectangular parallelepiped shape with the upper part opened, and a paper box lid body boxed in a flat rectangular shape with the lower part opened. In a hinged open / closed paper box that is connected to the upper part of the rear plate of the paper box body by attaching a rear connection piece of the paper box lid body, an oblong opening-closing locking hole is formed at the upper center of the rear plate of the paper box body. In addition, a U-shaped opening locking projection having a depth of about 2 mm is provided at the center of the valley fold line where the rear connection piece of the paper box lid is continuously provided. When the lid is opened, the U-shaped lid-locking projection with a depth of about 2 mm in the paper box lid folds into the upper inner surface of the rear plate through the horizontally long lid-locking hole in the paper box body. Press the inner side of the fold-in piece attached to the paper box, lock the paper box lid and act like a brake, When the paper box lid is pressed and closed again, the brake action of the lid locking protrusion is released and the paper box lid is easily closed. Opening and closing lids made of paperboard that can be covered and contains granular confectionery, granular beverages, powder detergents, etc. It is possible to provide an easy-to-use hinged paper box that is easy and reliable.
[Brief description of the drawings]
FIG. 1 is a perspective view of a hinged paper box in an embodiment of the present invention.
FIG. 2A is a plan view of a blank of a paper box lid body in the hinged open / close type paper box of the embodiment, and FIG. 2B is a plan view of a blank of the paper box main body.
FIG. 3A is a cross-sectional view showing a state of the hinged open / close type paper box according to the embodiment before and after the paper box lid is opened, and FIG. 3B is a diagram illustrating the paper box lid. It is sectional drawing which shows a state when is opened.
FIG. 4 is a perspective view of a conventional hinged paper box.
FIG. 5 is a perspective view of a conventional hinged open / close packaging container.
[Explanation of symbols]
14 ... Opening lid locking hole 15 ... Opening lid locking projection 20 ... Lid face plate 30 ... Front plate 31, 41, 61, 51 ... Folding piece 32 ... Front lid plate 33, 43, 63 ... Folding piece 34, 44, 64 ... box-making pieces 40 and 60 ... left and right side plates 42 and 62 ... left and right side cover plates 50 ... rear plate 52 ... rear cover plate 53 ... rear connection piece 55 ... glue piece 70 ... bottom plate group and bottom plate 80 ... Plastic lid body 81 ... Plastic frame body 82 ... Paperboard container body 83 ... Hinge structure c ... Valley fold line

Claims

The front plate 30, the left and right side plates 40, 60, the rear plate 50, the adhesive strip 55, and the bottom plate group 70, 70, 70, 70 are connected to each other via a crease line, and the upper inner surface of each face plate Folding pieces 31, 41, 61 and 51 are respectively folded and pasted to each other, and a rectangular parallelepiped paper box body which is opened upward, a lid plate 20, a front lid plate 32, left and right side lid plates 42 and 62, and a rear lid The plate 52 is connected to each other via a crease line, and the box is formed into a flat rectangular shape having an open bottom, and a rear connection piece 53 is connected to the lower side of the rear cover plate 52 via a valley fold line c. In the hinged open / close-type paper box in which the paper box lid is connected to the outer surface upper part of the rear plate 50 of the paper box main body by attaching the inner surface rear surface connection piece 53 of the paper box lid, the upper center of the rear plate 50 of the paper box main body Then, a horizontally long open lid locking hole 14 is provided at a position where the folding piece 51 is on the inner surface. Also the position covering the lid opening Tsunagitomeana 14 at the center of the valley fold lines c which continuously provided a surface connecting piece 53 after the paper box lid, provided a U-shaped open lid locking projections 15,
A hinged open / close type paper box characterized in that when the paper box lid is opened, the open / close projection 15 of the paper box lid is inserted into the opening / closing hole 14 of the paper box body so that the open state can be maintained .