JP4562276B2

JP4562276B2 - Winding cylinder storage box

Info

Publication number: JP4562276B2
Application number: JP2000346906A
Authority: JP
Inventors: 隆志薗村; 康成田中
Original assignee: 旭化成ホームプロダクツ株式会社
Priority date: 2000-11-14
Filing date: 2000-11-14
Publication date: 2010-10-13
Anticipated expiration: 2020-11-14
Also published as: JP2002145257A

Description

【０００１】
【発明の属する技術分野】
本発明は、食品包装用のラップフィルムやアルミホイル等を巻回した巻筒体の収納箱に関する。特に、収納箱の蓋体を閉じた時の係止能力と開閉のし易さを維持しつつ巻筒体の出し入れ易さを向上させ、３つの機能を調和させた巻筒体収納箱に関する。
【０００２】
【従来の技術】
ラップフィルムやアルミホイルは芯体に巻回された巻筒体が箱に収納されている。例えば、特開２０００−６９６１号公報のラップフィルム収納箱の使用時には、蓋体を開け、ラップフィルムを必要量引き出し、蓋体を閉じ、収納箱に設けられた切断具でラップフィルムを切断する。この一連の操作において、蓋体の閉まり具合が使い勝手を左右する重要な要因になっている。例えば、蓋体を十分閉め切らずにラップフィルムを切断した場合、切断時に切断具取り付け部位に大きな力が加わり収納箱が変形し切断性能が低下したり、ラップフィルムのカット端が収納箱内へ巻き戻り、次の使用の際に不都合が生じる。又、使用後蓋体が半開き状態であれば収納箱内へ虫、ほこりが侵入し衛生上問題となったり、収納箱が転がった場合巻筒体が飛び出すことがあった。
【０００３】
これらを防止する手段としては、収納室本体より僅かに外側に突出した突起、又は折れ線を介して収納室本体より外側へ延出した舌片を設け、且つ蓋体を閉めた時にそれらと重なる蓋体の内側の位置に、突起又は舌片を係止する部分を設けることで蓋体が浮き上がるのを防止したものが多い。突起又は舌片の位置は、側面又は前面の上部が多い。
突起を利用するものとして、例えば実開平３−７５１３１号公報、実用新案登録第３０１８０２６号公報、特開平１０−１１４２号公報、特開平１０−２５８８３３号公報が挙げられる。実開平３−７５１３１号公報では、前板両端部又は脇板の前縁部から箱体の左右方向又は前方へ延びる突出片を設け、蓋体の隅部と圧迫係止することで蓋体の浮き上がりを防止したものである。実用新案登録第３０１８０２６号公報は、前板上縁部に連接した縁折り片を箱体内側へ折り込んだ際に突縁を形成する切り込みを設け、蓋体内面に設けた凸加工上縁部と係合させて蓋体の浮き上がりを防止している。
【０００４】
特開平１０−１１４２号公報では、箱体の両側壁に連なる折り込み片を折り込んだ際に突縁を形成する切り込みを設け、蓋体内面にその突縁を係止させる隙間を形成することで蓋体のはね上がりを防止するものである。又、特開平１０−２５８８３３号公報では、側壁上縁に連続した折り込みフラップに前壁外面より僅かに突出する突出片を設け、蓋の重なる部分に係合する凹陥段部を形成するものである。
【０００５】
舌片を利用するものとして、例えば実開平４−８９７３２号公報が挙げられる。実開平４−８９７３２号公報では、本体側壁の頂縁部に外側下方へ垂下する舌片と蓋体側壁内面の舌片を係止する段部により蓋体の施蓋状態を確保するものである。
【０００６】
しかしながら、舌片により蓋体を係止するものは舌片の折れ具合が係止能力を左右する。つまり、舌片に折り癖がつき過ぎ立ち上がりが不十分であると蓋体の係止が不十分で浮き上がったり、舌片に折り癖がなく立ち上がり過ぎると蓋体との嵌合がきつく開け難い場合がある。突起を設けるものは、突出量は切り込みの形状で決まり、立ち上がりの状態は折り込み片を折り込んだ時点で決まり、舌片を設けるものより係止能力にばらつきが少ない。
【０００７】
突起を設けるもので、実開平３−７５１３１号公報のように前板両端部又は脇板の前縁部から突起を突出させ蓋体を圧迫係止するものは、収納箱が板紙製の場合、蓋体の開け閉めを繰り返す毎に突起部分に層間剥離が生じて係止能力の耐久性がなくなる。又、実用新案登録第３０１８０２６号公報のように前板上部に突起を設けた場合は、前面上部を擦るようにラップフィルムを引き出す時に突起が引き出し性を阻害する。
【０００８】
又、特開平１０−１１４２号公報、特開平１０−２５８８３３号公報のように収納室の両脇上部から収納室側へ折り込み片を折り込むものは、何らかの理由で巻筒体を収納箱から出し入れする場合に折り込み片が邪魔になったり、特に巻筒体を収納箱に入れる時に巻筒体の端部により、折り込み片の先端が底面方向を向くように折り込まれる。この場合、折り込み片に設けられた突縁が蓋体内面に設けられた隙間と係合できないため、蓋体の浮き上がりを防止することができなくなる。更に、巻筒体からラップフィルムを引き出す際に折り込み片と巻筒体の端部が擦れ合うために引き出し性が阻害され、巻筒体が収納箱内から飛び出す場合がある。
【０００９】
【発明が解決しようとする課題】
本発明は、このような従来の蓋体の係止手段が抱えている問題、つまり蓋体の係止能力と開閉のし易さと巻筒体の出し入れのし易さを調和させた巻筒体の収納箱を提供することを目的とする。
【００１０】
【課題を解決するための手段】
本発明者らは、上記課題を達成するために鋭意検討した結果、本発明をなすに至った。
すなわち本発明は以下の通りである。
１）前板（１）、底板（２）、後板（３）、脇板（８）、補助脇板（９）、（９′）の各面からなる上部が開口した収納室（１２）と、蓋板（４）、掩蓋片（５）、掩蓋片脇板（１０）、掩蓋片補助脇板（１１）の各面からなる収納室を覆う方向に連接した開閉可能な蓋体（１３）とで形成される直方体の箱体と、上記収納室（１２）に収納される芯体（Ｒ１）と所定長さのフィルム（Ｆ）からなる巻筒体（Ｒ２）とで構成された巻筒体収納箱において、収納室（１２）の開口部両脇上部から収納室側へ折り込み片（１４）が脇板（８）の上縁部から折れ線（１７）を介して延出され、その折れ線（１７）部分には、折り込み片（１４）が収納室側へ折り込まれた時に収納室外へ突出する突起（１５）が形成されるように切り込み線（１６）が形成されており、折れ線（１７）を含む直線上の任意の点を（Ｐ）、点（Ｐ）を通る折れ線（１７）の垂線が折り込み片（１４）の先端部と交差する点を（Ｔ）、折り込み片（１４）と脇板（８）が同一平面上にある状態で折れ線（１７）を介して点（Ｔ）と線対称の点を（Ｔ′）、折れ線（１７）に垂直で脇板（８）を２分割する直線を（Ｑ）、脇板（８）上に投影される芯体（Ｒ１）の中心点（Ｓ）が直線（Ｑ）上にのるようにし、点（Ｔ′）と点（Ｓ）を結ぶ直線と直線（Ｑ）とがなす角度を（θ）とした場合に、点（Ｐ）と点（Ｔ）間の長さ（Ｌ）と、芯体（Ｒ１）の外径（Ｄ１）と収納室の高さ（Ｈ）との関係が（１）、（２）式を満たす形状であることを特徴とする巻筒体収納箱。
Ｌ＜Ｈ−（１＋ｃｏｓθ）×Ｄ１×０．５（１）式
−９０°≦θ≦９０° （２）式
【００１１】
２）前板（１）、底板（２）、後板（３）、脇板（８）、補助脇板（９）、（９′）の各面からなる上部が開口した収納室（１２）と、蓋板（４）、掩蓋片（５）、掩蓋片脇板（１０）、掩蓋片補助脇板（１１）の各面からなる収納室を覆う方向に連接した開閉可能な蓋体（１３）とで形成される直方体の箱体と、上記収納室（１２）に収納される芯体（Ｒ１）と所定長さのフィルム（Ｆ）からなる巻筒体（Ｒ２）とで構成された巻筒体収納箱において、収納室（１２）の開口部両脇上部から収納室側へ折り込み片（１４）が補助脇板（９′）の上縁部から折れ線（１７）を介して延出され、その折れ線（１７）部分には、折り込み片（１４）が収納室側へ折り込まれた時に収納室外へ突出する突起（１５）が形成されるように切り込み線（１６）が形成されており、折れ線（１７）を含む直線上の任意の点を（Ｐ）、点（Ｐ）を通る折れ線（１７）の垂線が折り込み片（１４）の先端部と交差する点を（Ｕ）、折り込み片（１４）と脇板（８）が同一平面上にある状態で折れ線（１７）を介して点（Ｕ）と線対称の点を（Ｕ′）、折れ線（１７）に垂直で脇板（８）を２分割する直線を（Ｑ）、脇板（８）上に投影される芯体（Ｒ１）の中心点（Ｓ）が直線（Ｑ）上にのるようにし、点（Ｕ′）と点（Ｓ）を結ぶ直線と直線（Ｑ）とがなす角度を（θ）とした場合に、点（Ｐ）と点（Ｕ）間の長さ（Ｍ）と、芯体（Ｒ１）の外径（Ｄ１）と収納室の高さ（Ｈ）との関係が（３）、（４）式を満たす形状であることを特徴とする巻筒体収納箱。
Ｍ＜Ｈ−（１＋ｃｏｓθ）×Ｄ１×０．５（３）式
０°≦θ≦９０° （４）式
【００１２】
３）掩蓋片脇板（１０）と掩蓋片補助脇板（１１）が重なる蓋体（１３）の内側上部に、蓋体を閉めた時に突起（１５）をはめ込む嵌合部（１８）が形成されていることを特徴とする１）又は２）記載の巻筒体収納箱。
４）収納箱を構成する材質が１．５ｍｍ以下の厚みの段ボールであることを特徴とする１）〜３）のいずれかに記載の巻筒体収納箱。
【００１３】
本発明が従来技術と最も相違するところは、従来技術が収納室の両脇上部から収納室側へ折り込み片を設けてそれを折り込んだ時に突起が形成されるのみであるのに対し、本発明はその突起を形成する折り込み片の形状、寸法を規定したことである。
上記従来技術と相違するところの本発明の構成要件の役割は、蓋体の係止能力と開閉のし易さを維持しつつ、巻筒体の出し入れのし易さを向上させ、３つの機能を調和させたものである。
【００１４】
以下、図に基づいて本発明を更に詳細に説明する。
図１は、本発明の一実施例を示すもので、巻筒体収納箱の蓋体（１３）が約９０°以上開いた状態を示す立体模式図である。図２は、本発明の収納箱の一例を示す展開図である。図３の（a）は、折り込み片（１４）が脇板（８）の上縁部から延出した場合で、折れ線（１７）を含む直線上の任意の点（Ｐ）における折り込み片（１４）の長さ（Ｌ）、又（b）は、折り込み片（１４）が補助脇板（９′）から延出した場合で、折れ線（１７）を含む直線上の任意の点（Ｐ）における折り込み片（１４）の長さ（Ｍ）と、収納箱の高さ（Ｈ）、芯体（Ｒ１）の外径（Ｄ１）、巻筒体（Ｒ２）の外径（Ｄ２）の関係を示す拡大図である。図４は、脇板（８）の上縁部から延出した折り込み片（１４）と突起（１５）の形状を変更した一例を示す拡大図である。図５は、突起（１５）の先端部が蓋体の開け閉め時に接触する部分の蓋体内側の掩蓋片補助脇板（１１）に凹凸加工を施した一例を示す拡大図である。図６は、本発明の収納箱の別の一例を示す展開図である。図７は、補助脇板（９′）の上縁部から延出した折り込み片（１４）と突起（１５）の形状を変更した一例を示す拡大図である。
【００１５】
本発明の一例を示す図１において、収納箱は前板（１）、底板（２）、後板（３）、及び脇板（８）、補助脇板（９）、（９′）の各面で形成される上部が開口した収納室（１２）と、その収納室（１２）の後板（３）の上端縁から開閉可能で収納室（１２）を覆う方向に連接した蓋板（４）と、その蓋板（４）の前端縁から前板（１）を覆う方向に延出した掩蓋片（５）と、掩蓋片脇板（１０）、掩蓋片補助脇板（１１）の各面で形成される蓋体（１３）からなる直方体状の箱体である。この収納箱には、フィルム（Ｆ）を切断するための切断具（Ｋ）が配備され、収納室（１２）に収納された巻筒体（Ｒ２）から必要量フィルムを引き出し切断して使用される。切断具の形状は、直線状、Ｖ状等、材質も金属、バルカナイズドファイバー等特に制限はない。又、切断具が配備されている部位は、図１に示す掩蓋片（５）の先端縁部、前板（１）の上端縁部、底板（２）と前板（１）の間の稜線部等のいずれでも構わない。
【００１６】
本発明は蓋体を係止する手段として折り込み片による突起を採用した。舌片の場合は前述の通り折り癖が蓋体の係止状態を左右し、折り癖が強い場合は蓋体の開閉は問題ないが係止が不完全で蓋体が浮き上がる場合がある。逆に折り癖が弱い場合は蓋体の係止は十分であるが、開閉が硬い場合がある。
本発明の折り込み片（１４）の位置は、図１に示すように両脇上部から折れ線（１７）により収納室側に延出されており、突起（１５）は折れ線部分に収納室の外側方向へ突出した状態で設けられる。両脇上部から折り込み片を設ける手段としては、脇板（８）、補助脇板（９）、補助脇板（９′）の３箇所のうちから連接することが考えられるが、補助脇板（９）から延出させる場合は掩蓋片脇板（１０）との位置関係から形状寸法に制限がある。その点では、図２に示すように脇板（８）から延出しているものは制約がなく好ましい。更に図６に示す補助脇板（９′）から延出しているものは縁折り片（７）の巻筒体の飛び出しを防止する効果との相乗効果があり好ましい。
【００１７】
折り込み片と突起は脇板（８）又は補助脇板（９′）に対しほぼ直角に延出することが好ましい。消費者が使用する時に蓋体を係止する能力がなくなることもなく、ラップフィルムを引き出す時に引き出し性を阻害することもない。
突起（１５）の形状は、半円形状、コの字状、台形状、三角形状、波形状等特に制限はない。折り込み片の根元の折れ線部分に例えばコの字状の切り込み線を形成し、箱組立時に折り込み片を折れ線に沿って折ることで、突起が自然に形成されるものが好ましい。折れ線部分の加工は罫線、ミシン目、半切れ線によるものが好適である。更に、図４の一例に示したように突起（１５）を形成する切り込み線（１６）の両端を折れ線（罫線やミシン目等）で繋いだり、その両端近傍に切り込み線を加工しても良い。これにより蓋体（１３）を開け閉めする時の抵抗が軽減される。又、蓋体を開ける時の引っ掻き音が発生しにくくなる、又は小さくなる傾向がある。
【００１８】
この突起が収納室外方へ突出する長さは、収納室（１２）と蓋体（１３）各々の長手方向の長さの関係によるが、通常は１〜３ｍｍが好ましい。１ｍｍ未満では蓋体を係止する効果が小さく、３ｍｍを越えると蓋体が閉じられた時に突起へ掛かる圧迫が大きくなるため、突起が変形や破損する恐れがある。突起の根元近傍部分の幅（最大幅）は特に制限はないが、折り込み片（１４）の幅に対して８０〜２０％の幅が好ましい。８０％を越えると折り込み片（１４）と脇板（８）、又は補助脇板（９′）との繋がりが不十分であるため蓋体の開け閉め操作により破損する恐れがあり、２０％未満では蓋体を係止する効果が小さい。
【００１９】
蓋体（１３）を閉じた時、突起（１５）と重なる蓋体の内側の部分にそれを係止する嵌合部（１８）が形成されていることが好ましい。嵌合部としては、掩蓋片脇板（１０）と掩蓋片補助脇板（１１）が貼合されることで生じる凹凸段差が効果的であり突起（１５）が係止され蓋体（１３）は浮き上がりにくくなる。この嵌合部は蓋体（１３）の開け閉めの際、適度な抵抗を生じさせ、蓋体（１３）を閉めて突起がこの嵌合部に係止する時に音が発生し、使用者にとって蓋体が完全に閉まったことが音で確認でき、ラップフィルムの巻き戻りや巻筒体の収納箱からの飛び出しを防止することに役立つ。嵌合部の形状は、特に制限はないが、突起が入り込んだ時に音が発生するような段差部分があれば良い。
【００２０】
更に、図４の一例に示したように突起（１５）を形成する切り込み線（１６）の両端を折れ線（罫線やミシン目等）で繋いだり、その両端近傍に切り込み線を加工した場合は、蓋体（１３）を閉じた時に発生する音がより明瞭化されるので好適である。又、図５に示したように突起（１５）の先端部が蓋体の開け閉め時に接触する部分の蓋体内側の掩蓋片補助脇板（１１）に直線状又は曲線状、或いは細かな粒状の凹凸加工等を施しても良い。これらの加工により突起先端と蓋体内側とが接触している時の力が分散されるので、蓋体を開ける時の引っ掻き音が発生しにくくなる、又は小さくなる傾向がある。
【００２１】
尚、突起の耐久性を強化するため、又は蓋体を閉じた時に発生する音を更に明瞭化させるため、突起の部分に硬化性樹脂を塗布、又は含浸しても良い。又、収納箱が板紙製の場合で蓋体を開ける時に硬い場合は、折り込み片の先端縁に細かな切り込みを入れることで蓋体を開け易くさせても良い。
該折り込み片（１４）が、脇板（８）の上縁部から延出している場合は、折れ線（１７）を含む直線上の任意の点を（Ｐ）、点（Ｐ）を通る折れ線（１７）の垂線が折り込み片（１４）の先端部と交差する点を（Ｔ）、折り込み片（１４）と脇板（８）が同一平面上にある状態で折れ線（１７）を介して点（Ｔ）と線対称の点を（Ｔ′）、折れ線（１７）に垂直で脇板（８）を２分割する直線を（Ｑ）、脇板（８）上に投影される芯体（Ｒ１）の中心点（Ｓ）が直線（Ｑ）上にのるようにし、点（Ｔ′）と点（Ｓ）を結ぶ直線と直線（Ｑ）とがなす角度を（θ）とした場合に、点（Ｐ）と点（Ｔ）間の長さ（Ｌ）と、芯体（Ｒ１）の外径（Ｄ１）と収納室の高さ（Ｈ）との関係が、Ｌ＜Ｈ−（１＋ｃｏｓθ）×Ｄ１×０．５（−９０°≦θ≦９０°）を満たす先端形状であることが必要である。
【００２２】
Ｌがこの式を満たす場合、巻筒体（Ｒ２）を収納室から出す時に折り込み片（１４）が邪魔になることもなく、巻筒体を収納室へ再挿入した後に折り込み片（１４）が収納室内へ折り込まれたままの状態である可能性が低く、折り込まれたとしても何回か使用している間に、巻筒体が収納室内で移動することで元の状態、即ち、折り込み片（１４）と脇板（８）のなす角度が約９０°に回復する。
更に、巻筒体の外径（Ｄ２）との関係を含んだ、Ｌ＜Ｈ−（１＋ｃｏｓθ）×（Ｄ１＋Ｄ２）×０．２５（−９０°≦θ≦９０°）を満たす先端形状を有する折り込み片がより好ましい。この場合、巻筒体を収納室から出す時に折り込み片が邪魔になることもなく、巻筒体を収納室へ再挿入した後の折り込み片は元の状態、即ち、折り込み片と脇板のなす角度が約９０°に回復する。折り込み片の先端形状は、円弧状でも、直線の組合わせによる多角形状でも、台形状でも、２山状でもかまわない。
【００２３】
Ｌ≧Ｈ−（１＋ｃｏｓθ）×Ｄ１×０．５（−９０°≦θ≦９０°）の場合は、巻筒体を収納室から出す時に折り込み片が邪魔になり、折り込み片を折り戻して開口部を広げる必要がある。又、巻筒体を収納する場合は折り込み片が収納室内へ折り込まれて巻回されたフィルムの端部や巻筒体の芯と接触したままで、自然に折り込まれる前の状態に戻ることはなく、フィルムを引き出そうとした時の巻筒体の回転を阻害する場合がある。
【００２４】
該折り込み片（１４）が、補助脇板（９′）の上縁部から延出している場合は、折れ線（１７）を含む直線上の任意の点を（Ｐ）、点（Ｐ）を通る折れ線（１７）の垂線が折り込み片（１４）の先端部と交差する点を（Ｕ）、折り込み片（１４）と脇板（８）が同一平面上にある状態で折れ線（１７）を介して点（Ｕ）と線対称の点を（Ｕ′）、折れ線（１７）に垂直で脇板（８）を２分割する直線を（Ｑ）、脇板（８）上に投影される芯体（Ｒ１）の中心点（Ｓ）が直線（Ｑ）上にのるようにし、点（Ｕ′）と点（Ｓ）を結ぶ直線と直線（Ｑ）とがなす角度を（θ）とした場合に、点（Ｐ）と点（Ｕ）間の長さ（Ｌ）と、芯体（Ｒ１）の外径（Ｄ１）と収納室の高さ（Ｈ）との関係が、Ｍ＜Ｈ−（１＋ｃｏｓθ）×Ｄ１×０．５（０°≦θ≦９０°）を満たす先端形状であることが好ましい。
【００２５】
Ｍがこの式を満たす先端形状であれば、巻筒体（Ｒ２）を収納室から出す時に折り込み片（１４）が邪魔になることもなく、巻筒体を収納室へ再挿入した後に折り込み片（１４）が収納室内へ折り込まれたままの状態である可能性が低く、折り込まれたとしても何回か使用している間に、巻筒体が収納室内で移動することで元の状態、即ち、折り込み片（１４）と補助脇板（９′）のなす角度が約９０°に回復する。
【００２６】
更に、巻筒体の外径（Ｄ２）との関係を含んだ、Ｍ＜Ｈ−（１＋ｃｏｓθ）×（Ｄ１＋Ｄ２）×０．２５（０°≦θ≦９０°）を満たす先端形状を有する折り込み片がより好ましい。この場合、巻筒体を収納室から出す時に折り込み片が邪魔になることもなく、巻筒体を収納室へ再挿入した後の折り込み片は自然に折り込まれていない状態、即ち、折り込み片と補助脇板のなす角度が約９０°に回復する。折り込み片の先端形状は、円弧状でも、直線の組合わせによる多角形状でも、台形状でも、２山状でもかまわない。
【００２７】
Ｍ≧Ｈ−（１＋ｃｏｓθ）×Ｄ１×０．５（０°≦θ≦９０°）の場合は、巻筒体を収納室から出す時に折り込み片が邪魔になり、折り込み片を折り戻して開口部を広げる必要がある。又、巻筒体を収納する場合は折り込み片が収納室内へ折り込まれて巻回されたフィルムの端部や巻筒体の芯と接触したままで、元の状態に戻ることはなく、フィルムを引き出そうとした時の巻筒体の回転を阻害する場合がある。
【００２８】
本発明の収納箱に使用される材質としては、各種段ボール、坪量１００〜６００ｇ／ｍ²程度の板紙、プラスチックスの成型品等特に制限はないが、段ボールの場合はいわゆるマイクロフルートと称される厚みが１．２０〜０．４６ｍｍ程度のＥ、Ｆ、Ｇ、Ｍ、Ｎフルートの段ボールが好適である。これらのマイクロフルートを用いる場合は段ボールの段目方向と収納箱の長手方向とが互いに垂直であることが好ましい。又、板紙の場合は坪量３５０〜５５０ｇ／ｍ²程度の板紙がより好ましい。
【００２９】
本発明の収納室の高さ（Ｈ）は特に制限はないが４０〜６０ｍｍのものが好ましい。又、芯体の外径（Ｄ１）と巻筒体の外径（Ｄ２）は芯体にフィルムを所定の長さ巻回した状態で収納室に収まる範囲であれば特に制限はない。
本発明の収納箱に収納される巻筒体に巻回されるフィルムは、各種樹脂製ラップフィルム、アルミホイル、クッキングペーパー等特に制限はないが、ポリ塩化ビニル、ポリ塩化ビニリデン、ポリエチレン等のラップフィルムが好ましい。
又、本発明の芯体は、紙製、プラスチック製等特に制限はない。
【００３０】
【発明の実施の形態】
次に、本発明で用いる評価の方法と評価基準について以下に示す。
《蓋体係止性》
実施例又は比較例に記載の収納箱に外径３７ｍｍ長さ３０７ｍｍの紙管に３０ｃｍ幅のフィルムを２０ｍ巻いた巻き外径４１ｍｍの巻筒体を収納した。蓋体を開け、そのフィルムを３０ｃｍほど引き出し、蓋体を閉め、切断具で切断し、蓋体の閉まり具合を評価した。この操作を１０回繰り返し、１回も蓋体が浮き上がらないものを○（優れた係止性）、１回以上３回未満を△（実用上問題なし）、３回を越えるものを×（実用不可能）とした。
【００３１】
《蓋体の開閉のし易さ》
実施例又は比較例に記載の収納箱の蓋体の開け閉め操作を実施して評価した。
蓋体を開け閉めする時に殆ど抵抗がないものを○（優れた開閉性）、蓋体を開ける時に抵抗があるものを△（実用上問題なし）、蓋体を閉める時も開ける時も抵抗があるものを×（実用不可能）とした。
《巻筒体の出し入れ易さ》
蓋体係止性の評価に用いた巻筒体と収納箱を用いて、蓋体を開けた状態で巻筒体を収納箱から出し入れした。折り込み片を広げずに巻筒体を出すことができ、巻筒体を再挿入した後に折り込み片が自然に元の状態に戻ったものを○（優れた巻筒体の出し入れ易さ）、若干巻筒体の端部と折り込み片が接触し折り込み片が収納室内へ折り込まれていても使用中に簡単に元の状態に復帰するものを△（実用上問題なし）、折り込み片を広げないと巻筒体を出すことができず巻筒体を入れた時に折り込み片が巻筒体の端部と接触し完全に折り込まれてしまい復帰しないものを×（実用不可能）とした。
【００３２】
《総合評価基準》
前述の３つの評価結果で、×がないものを合格とし、×が１つ以上のものを不合格とした。
以下に実施例、比較例によって本発明を詳細に説明する。
【００３３】
【実施例、比較例】
以下、実施例および比較例について更に説明するが、これらは本発明の範囲を制限するものではない。実施例に供する収納箱の基本構造（折り込み片は除く）は図１に示すものと同じ、つまり坪量４５０ｇ／ｍ²の板紙を用いて前板（１）、底板（２）、後板（３）、脇板（８）と補助脇板（９）、（９′）の各面で形成される上部が開口した高さ（Ｈ）４３ｍｍ、奥行き４３ｍｍ、長さ３１２ｍｍの収納室（１２）と、その収納室の後板（３）の上端縁から開閉可能で収納室を覆う方向に連接した蓋板（４）（奥行き方向の折れ線間距離４４ｍｍ）と、掩蓋片（５）、掩蓋片脇板（１０）、掩蓋片補助脇板（１１）の各面で形成された蓋体（１３）からなる直方体状の箱体であり、収納室に収納した巻筒体（幅３０ｃｍ×長さ２０ｍ×厚み１０ミクロンのポリ塩化ビニリデンフィルムを芯体（Ｒ１）の外径（Ｄ１）が３７ｍｍ、長さ３０７ｍｍの円筒状の紙管に巻いたもので巻筒体（外径（Ｄ２）は４１ｍｍ）からラップフィルムを必要量引き出し、切断して用いる巻筒体収納箱である。この収納箱を基本として各種折り込み片を形成し、突起（１５）の根元近傍の幅（最大幅）は折り込み片（１４）の幅の５０％とし、突起（１５）が収納室外方へ突出する長さは２ｍｍとした。
【００３４】
折り込み片（１４）が脇板（８）の上縁部より延出したものの実施例（実験ＮＯ．１〜５）と比較例（実験ＮＯ．６〜８）について、各部寸法と評価結果を表１に示す。尚、実施例の実験ＮＯ．５では収納箱の材質には板紙ではなく厚さ０．５ｍｍのＧフルートの段ボールを用い、段ボールの段目方向と収納箱の長手方向とが互いに垂直となるようにした。
【００３５】
【表１】

【００３６】
折り込み片（１４）が補助脇板（９′）から延出したものの実施例（実験ＮＯ．９〜１０）と比較例（実験ＮＯ．１１〜１２）について、各部寸法と評価結果を表２に示す。
【００３７】
【表２】

【００３８】
これらの結果から以下のことが判明した。
第一に、折り込み片が脇板の上縁部より延出しているものについては、Ｌ＜Ｈ−（１＋ｃｏｓθ）×Ｄ１×０．５（−９０°≦θ≦９０°）を満たす実験ＮＯ．１は、この範囲外にある実験ＮＯ．６、７、８と比較して蓋体の係止性、蓋体の開閉のし易さ、巻筒体の出し入れ易さの調和がとれている。又、折り込み片が補助脇板の上縁部より延出しているものについては、Ｍ＜Ｈ−（１＋ｃｏｓθ）×Ｄ１×０．５（０°≦θ≦９０°）を満たす実験ＮＯ．９は、この範囲外にある実験ＮＯ．１１、１２と比較して蓋体の係止性、蓋体の開閉のし易さ、巻筒体の出し入れ易さの調和がとれている。
【００３９】
第二に、Ｌ＜Ｈ−（１＋ｃｏｓθ）×（Ｄ１＋Ｄ２）×０．２５（−９０°≦θ≦９０°）を満たす実験ＮＯ．２、４、５と、Ｍ＜Ｈ−（１＋ｃｏｓθ）×（Ｄ１＋Ｄ２）×０．２５（０°≦θ≦９０°）を満たす実験ＮＯ．１０は、蓋体の係止性、蓋体の開閉のし易さ、巻筒体の出し入れ易さの調和が更に優れている。
第三に、嵌合部のある実験ＮＯ．４、５は、嵌合部のない実験ＮＯ．１、２、３と比較して蓋体の係止性が更に優れている。
第四に、収納箱を構成する材質にＧフルートの段ボールを用いた実験ＮＯ．５は、その他の実験の板紙製収納箱よりも手に持った時の強度や耐久性が更に優れていた。
【００４０】
【発明の効果】
本発明の折り込み片を備えた収納箱は、蓋体の係止能力と、蓋体の開閉のし易さを維持しつつ、巻筒体の出し入れのし易さを向上させることで３つの機能を調和させた使い勝手の良い巻筒体の収納箱である。
【図面の簡単な説明】
【図１】本発明の実施例を示す巻筒体収納箱の蓋体が開いた状態を示す立体模式図である。
【図２】図１で示した巻筒体収納箱の展開図である。
【図３】本発明の収納箱の折り込み片の長さ（Ｌ）、（Ｍ）と、収納箱の高さ（Ｈ）、芯体の外径（Ｄ１）、巻筒体の外径（Ｄ２）との関係を示す拡大図である。
【図４】本発明の収納箱で、脇板（８）から延出した折り込み片（１４）の先端形状と突起（１５）の形状の一例を示した拡大図である。
【図５】本発明の収納箱で、突起（１５）の先端部が蓋体の開け閉め時に接触する部分の蓋体内側の掩蓋片補助脇板（１１）に凹凸加工を施した一例を示す拡大図である。
【図６】本発明の別の実施例を示す巻筒体収納箱の展開図である。
【図７】本発明の収納箱で、補助脇板（９′）から延出した折り込み片（１４）の先端形状と突起（１５）の形状の一例を示した拡大図である。
【符号の説明】
１前板
２底板
３後板
４蓋板
５掩蓋片
６開封片
７縁折り片
８脇板
９補助脇板
９′補助脇板
１０掩蓋片脇板
１１掩蓋片補助脇板
１２収納室
１３蓋体
１４折り込み片
１５突起
１６切り込み線
１７折れ線
１８嵌合部
１９切り離し線
Ｄ１芯体の外径
Ｄ２巻筒体の外径
Ｆフィルム
Ｈ収納箱の高さ
Ｋ切断具
Ｌ脇板から延出した折り込み片の任意の点（Ｐ）からの長さ
Ｍ補助脇板から延出した折り込み片の任意の点（Ｐ）からの長さ
Ｒ１芯体
Ｒ２巻筒体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a storage box of a wound tubular body in which a wrap film for food packaging, an aluminum foil or the like is wound. In particular, the present invention relates to a winding cylinder storage box that improves the ease of loading and unloading the winding cylinder while maintaining the locking capability when the lid of the storage box is closed and the ease of opening and closing, and harmonizes three functions.
[0002]
[Prior art]
A wrap film or an aluminum foil has a cylindrical body wound around a core housed in a box. For example, when using the wrap film storage box disclosed in Japanese Patent Application Laid-Open No. 2000-6961, the lid is opened, the wrap film is drawn out by a necessary amount, the lid is closed, and the wrap film is cut with a cutting tool provided in the storage box. In this series of operations, the degree of closure of the lid is an important factor that affects usability. For example, if the wrap film is cut without fully closing the lid, a large force is applied to the cutting tool attachment site at the time of cutting, and the storage box is deformed and the cutting performance is deteriorated, or the cut end of the wrap film is wound into the storage box. Returning, inconvenience occurs in the next use. In addition, if the lid is in a half-opened state after use, insects and dust may enter the storage box, which may cause sanitary problems, and if the storage box rolls, the winding cylinder may pop out.
[0003]
As means for preventing these, a protrusion slightly protruding outward from the storage chamber main body, or a tongue piece extending outward from the storage chamber main body via a broken line, and a lid that overlaps with the lid when the cover is closed In many cases, the lid is prevented from being lifted by providing a portion for locking the protrusion or tongue piece at a position inside the body. As for the position of the protrusion or the tongue, the upper part of the side surface or the front surface is often used.
Examples of using the protrusion include Japanese Utility Model Laid-Open No. 3-75131, Utility Model Registration No. 3018026, Japanese Patent Laid-Open No. 10-1142, and Japanese Patent Laid-Open No. 10-258833. In Japanese Utility Model Laid-Open No. 3-75131, a protruding piece extending in the left-right direction or the front side of the box body from both ends of the front plate or the front edge portion of the side plate is provided, and the lid body is pressed and locked to the corner of the lid body. This prevents lifting. Utility model registration No. 3018026 gazette is provided with a notch for forming a projecting edge when folding an edge fold piece connected to the upper edge of the front plate to the inside of the box, and a convex processing upper edge provided on the inner surface of the lid. The lid is prevented from being lifted by engagement.
[0004]
In Japanese Patent Application Laid-Open No. 10-1142, a lid is formed by providing a notch for forming a protruding edge when a folding piece connected to both side walls of a box is folded, and forming a gap for locking the protruding edge on the inner surface of the cover. It prevents the body from bouncing up. In Japanese Patent Laid-Open No. 10-258833, a protruding piece that slightly protrudes from the outer surface of the front wall is provided on a folding flap that is continuous with the upper edge of the side wall to form a recessed stepped portion that engages with the overlapping portion of the lid. .
[0005]
As a thing using a tongue piece, Japanese Utility Model Laid-Open No. 4-89732 is cited, for example. In Japanese Utility Model Laid-Open No. 4-89732, a lid covering state is ensured by a stepped portion that engages a tongue piece that hangs outward and downward on a top edge portion of a main body side wall and a tongue piece on an inner surface of the lid side wall. .
[0006]
However, in the case where the lid is locked by the tongue piece, the folding state of the tongue piece affects the locking ability. In other words, if the tongue piece is too creased and the rise is insufficient, the lid will not be locked sufficiently and will rise, or if the tongue piece does not fold and rises too much, it will be difficult to open the lid. There is. In the case of providing a protrusion, the amount of protrusion is determined by the shape of the cut, and the rising state is determined at the time when the folded piece is folded.
[0007]
If the storage box is made of paperboard, the protrusions are provided to protrude the protrusions from the front edge portions of the front plate or the front edge of the side plate as in Japanese Utility Model Publication No. 3-75131. Each time the lid is repeatedly opened and closed, delamination occurs in the protruding portion, and the durability of the locking ability is lost. In addition, when a protrusion is provided on the upper portion of the front plate as in Utility Model Registration No. 3018026, the protrusion impedes the drawability when the wrap film is pulled out so as to rub the upper portion of the front surface.
[0008]
In addition, as in Japanese Patent Laid-Open Nos. 10-1142 and 10-258833, those in which folding pieces are folded from the upper sides of the storage chamber to the storage chamber side are taken in and out of the storage box for some reason. In some cases, the folded piece becomes a hindrance, and particularly when the wound cylinder is put into the storage box, it is folded by the end of the wound cylinder so that the tip of the folded piece faces the bottom surface. In this case, since the protruding edge provided on the folding piece cannot be engaged with the gap provided on the inner surface of the lid, it is impossible to prevent the lid from being lifted. Further, when the wrap film is pulled out from the winding cylinder, the folding piece and the end of the winding cylinder rub against each other, so that the drawability is hindered and the winding cylinder may jump out of the storage box.
[0009]
[Problems to be solved by the invention]
The present invention provides a winding cylinder that harmonizes the problems of such conventional lid locking means, i.e., the locking capacity of the lid, the ease of opening and closing, and the ease of loading and unloading. The purpose is to provide a storage box.
[0010]
[Means for Solving the Problems]
As a result of intensive studies to achieve the above-mentioned problems, the present inventors have made the present invention.
That is, the present invention is as follows.
1) A storage chamber (12) having an open top consisting of the front plate (1), bottom plate (2), rear plate (3), side plate (8), auxiliary side plate (9), (9 ') And an openable and closable lid body (13) connected in a direction covering the storage chamber composed of the surfaces of the lid plate (4), the lid piece (5), the lid piece side plate (10), and the lid piece auxiliary side plate (11). ) Formed by a rectangular parallelepiped box, a core (R1) stored in the storage chamber (12), and a winding cylinder (R2) made of a film (F) having a predetermined length. In the cylindrical storage box, a folding piece (14) is extended from the upper edge of the side plate (8) through the fold line (17) from the upper side of the opening of the storage chamber (12) to the storage chamber side. A cut line (16) is formed in the bent line (17) so that a protrusion (15) is formed that protrudes out of the storage chamber when the folding piece (14) is folded into the storage chamber. Is formed, and an arbitrary point on the straight line including the broken line (17) is defined as (P), and a perpendicular line of the broken line (17) passing through the point (P) is intersected with the tip of the folded piece (14) ( T), with the folding piece (14) and the side plate (8) on the same plane, a point symmetrical with the point (T) via the broken line (17) (T ') and perpendicular to the broken line (17) (Q), and the center point (S) of the core (R1) projected on the side plate (8) is on the straight line (Q). The length (L) between the point (P) and the point (T), and the core when the angle formed by the straight line (Q) and the straight line connecting (T ′) and the point (S) is (θ) A wound tube storage box characterized in that the relationship between the outer diameter (D1) of (R1) and the height (H) of the storage chamber satisfies the expressions (1) and (2).
L <H− (1 + cos θ) × D1 × 0.5 (1) Formula
-90 ° ≦ θ ≦ 90 ° (2)
[0011]
2) A storage chamber (12) having an open upper portion comprising the front plate (1), bottom plate (2), rear plate (3), side plate (8), auxiliary side plate (9) and (9 '). And an openable and closable lid body (13) connected in a direction covering the storage chamber composed of the surfaces of the lid plate (4), the lid piece (5), the lid piece side plate (10), and the lid piece auxiliary side plate (11). ) Formed by a rectangular parallelepiped box, a core (R1) stored in the storage chamber (12), and a winding cylinder (R2) made of a film (F) having a predetermined length. In the cylindrical storage box, a folding piece (14) is extended from the upper edge of the auxiliary side plate (9 ') via a fold line (17) from the upper side of the opening of the storage chamber (12) toward the storage chamber. In the broken line (17), a cut line (15) is formed so that a protrusion (15) is formed that protrudes outside the storage chamber when the folding piece (14) is folded toward the storage chamber. 16) is formed, an arbitrary point on the straight line including the polygonal line (17) is (P), and the perpendicular of the polygonal line (17) passing through the point (P) intersects the tip of the folded piece (14) (U), with the folding piece (14) and the side plate (8) on the same plane, a point symmetrical to the point (U) via the broken line (17) (U '), and the broken line (17) (Q), and the center point (S) of the core (R1) projected on the side plate (8) is on the straight line (Q). When the angle formed by the straight line (Q) and the straight line connecting the point (U ′) and the point (S) is (θ), the length (M) between the point (P) and the point (U), A wound cylinder storage box characterized in that the relationship between the outer diameter (D1) of the core body (R1) and the height (H) of the storage chamber satisfies the expressions (3) and (4).
M <H− (1 + cos θ) × D1 × 0.5 (3)
0 ° ≦ θ ≦ 90 ° (4)
[0012]
3) A fitting portion (18) for fitting the projection (15) when the lid is closed is formed on the inner upper side of the lid (13) where the lid lid piece side plate (10) and the lid lid piece auxiliary side plate (11) overlap. 1) or 2) described above, wherein the wound tubular body storage box.
4) The wound cylinder storage box according to any one of 1) to 3), wherein a material constituting the storage box is a cardboard having a thickness of 1.5 mm or less.
[0013]
The most different point of the present invention from the prior art is that the conventional technique only provides a projection when a folding piece is provided from the upper part of both sides of the storage chamber toward the storage chamber and is folded. Stipulates the shape and size of the folded piece that forms the protrusion.
The role of the constituent elements of the present invention, which is different from the above prior art, is to improve the ease of loading and unloading the winding cylinder while maintaining the locking ability of the lid and the ease of opening and closing. Harmonized.
[0014]
Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 shows an embodiment of the present invention, and is a three-dimensional schematic diagram showing a state in which the cover (13) of the wound cylinder storage box is opened by about 90 ° or more. FIG. 2 is a development view showing an example of the storage box of the present invention. FIG. 3A shows a case where the folded piece (14) extends from the upper edge of the side plate (8), and the folded piece (14) at an arbitrary point (P) on the straight line including the broken line (17). The length (L) or (b) is the case where the folding piece (14) extends from the auxiliary side plate (9 '), at an arbitrary point (P) on the straight line including the broken line (17). The relationship between the length (M) of the folding piece (14), the height (H) of the storage box, the outer diameter (D1) of the core body (R1), and the outer diameter (D2) of the winding cylinder (R2) is shown. It is an enlarged view. FIG. 4 is an enlarged view showing an example in which the shapes of the folding piece (14) and the protrusion (15) extending from the upper edge of the side plate (8) are changed. FIG. 5 is an enlarged view showing an example in which the ridge cover piece auxiliary side plate (11) on the inner side of the lid body where the tip end portion of the protrusion (15) contacts when the lid body is opened and closed is subjected to uneven processing. FIG. 6 is a development view showing another example of the storage box of the present invention. FIG. 7 is an enlarged view showing an example in which the shapes of the folding piece (14) and the protrusion (15) extending from the upper edge portion of the auxiliary side plate (9 ′) are changed.
[0015]
In FIG. 1 showing an example of the present invention, the storage box includes a front plate (1), a bottom plate (2), a rear plate (3), a side plate (8), and auxiliary side plates (9) and (9 ′). A storage chamber (12) formed by a surface and having an open top, and a cover plate (4) that can be opened and closed from the upper edge of the rear plate (3) of the storage chamber (12) and that is connected in a direction covering the storage chamber (12) ), The lid piece (5) extending from the front edge of the lid plate (4) in a direction covering the front plate (1), the lid piece side plate (10), and the lid piece auxiliary side plate (11) It is a rectangular parallelepiped box made of a lid (13) formed by a surface. This storage box is provided with a cutting tool (K) for cutting the film (F), and is used by pulling and cutting a required amount of film from the wound cylinder (R2) stored in the storage chamber (12). The The shape of the cutting tool is not particularly limited, such as a straight line shape or a V shape, and the material is metal, vulcanized fiber, or the like. Moreover, the site | part in which the cutting tool is arrange | positioned is the ridgeline between the front-end edge part of the lid cover piece (5) shown in FIG. 1, the upper end edge part of a front board (1), a bottom board (2), and a front board (1). Any of the parts may be used.
[0016]
The present invention employs a protrusion by a folded piece as means for locking the lid. In the case of the tongue piece, the folds affect the locking state of the lid as described above. If the folds are strong, there is no problem in opening and closing the lid, but the locking may be incomplete and the lid may float. Conversely, when the crease is weak, the lid is sufficiently locked, but the opening and closing may be hard.
As shown in FIG. 1, the folding piece (14) of the present invention extends from the upper part of each side to the storage chamber side by a fold line (17), and the protrusion (15) extends in the fold line portion toward the outside of the storage chamber. Provided in a protruding state. As means for providing the folding pieces from the upper sides of both sides, it is conceivable that the side plates (8), the auxiliary side plates (9), and the auxiliary side plates (9 ') are connected to each other. In the case of extending from 9), there is a limitation on the shape and dimension due to the positional relationship with the lid lid side plate (10). In that respect, the one extending from the side plate (8) as shown in FIG. Further, the one extending from the auxiliary side plate (9 ') shown in FIG. 6 is preferable because it has a synergistic effect with the effect of preventing the winding of the winding piece of the edge folded piece (7).
[0017]
It is preferable that the folding piece and the protrusion extend substantially perpendicular to the side plate (8) or the auxiliary side plate (9 '). It does not lose the ability to lock the lid when used by consumers, and does not hinder the drawability when pulling out the wrap film.
The shape of the protrusion (15) is not particularly limited, such as a semicircular shape, a U-shape, a trapezoidal shape, a triangular shape, and a wave shape. It is preferable that, for example, a U-shaped cut line is formed in the bent line portion at the base of the folded piece, and the folded piece is folded along the broken line at the time of assembling the box, so that the protrusion is naturally formed. The broken line portion is preferably processed by ruled lines, perforations, and half-cut lines. Furthermore, as shown in the example of FIG. 4, both ends of the cut line (16) forming the protrusion (15) may be connected by a broken line (ruled line, perforation, etc.), or a cut line may be processed in the vicinity of both ends. . This reduces the resistance when opening and closing the lid (13). Moreover, there is a tendency that a scratching sound when the lid is opened is less likely to be generated or becomes smaller.
[0018]
The length of the protrusion protruding outward from the storage chamber depends on the relationship between the lengths of the storage chamber (12) and the lid (13) in the longitudinal direction. If it is less than 1 mm, the effect of locking the lid is small, and if it exceeds 3 mm, the pressure applied to the projection increases when the lid is closed, so that the projection may be deformed or damaged. Although there is no restriction | limiting in particular in the width | variety (maximum width) of the base vicinity of protrusion, The width of 80 to 20% is preferable with respect to the width | variety of a folding piece (14). If it exceeds 80%, the connection between the folding piece (14) and the side plate (8) or the auxiliary side plate (9 ') is insufficient, which may cause damage due to the opening and closing operation of the lid, less than 20% Then, the effect of locking the lid is small.
[0019]
When the lid (13) is closed, it is preferable that a fitting portion (18) for locking the lid (13) is formed on the inner portion of the lid that overlaps the protrusion (15). As a fitting part, the uneven | corrugated level | step difference produced by bonding a lid cover piece side plate (10) and a lid cover piece auxiliary side plate (11) is effective, a protrusion (15) is latched, and a cover body (13). Is difficult to lift. This fitting portion generates an appropriate resistance when the lid (13) is opened and closed, and a sound is generated when the lid (13) is closed and the protrusion is locked to the fitting portion, so that the user can It can be confirmed by sound that the lid body is completely closed, and it is useful for preventing the wrap film from rewinding and jumping out from the storage box of the winding cylinder. The shape of the fitting portion is not particularly limited, but it is sufficient if there is a step portion that generates a sound when the protrusion enters.
[0020]
Furthermore, as shown in the example of FIG. 4, when both ends of the cut line (16) forming the protrusion (15) are connected by a broken line (ruled line, perforation, etc.), or the cut line is processed in the vicinity of both ends, This is preferable because the sound generated when the lid (13) is closed is further clarified. In addition, as shown in FIG. 5, the tip of the protrusion (15) contacts the lid side piece auxiliary side plate (11) inside the lid at the portion where the tip contacts when the lid is opened and closed. You may give the uneven | corrugated processing etc. of. These processes disperse the force when the projection tip and the inside of the lid are in contact with each other, so that the scratching sound when the lid is opened is less likely to be generated or tends to be small.
[0021]
In order to reinforce the durability of the protrusions or to further clarify the sound generated when the lid is closed, a curable resin may be applied to or impregnated into the protrusions. Further, if the storage box is made of paperboard and is hard when the lid is opened, the lid may be easily opened by making a fine cut at the leading edge of the folded piece.
When the folded piece (14) extends from the upper edge of the side plate (8), an arbitrary point on the straight line including the broken line (17) is represented by (P) and a broken line passing through the point (P) ( The point (17) where the perpendicular line of 17) intersects the tip of the folded piece (14) is (T), and the folded piece (14) and the side plate (8) are on the same plane via the broken line (17) ( A point symmetrical to T) is (T '), a straight line perpendicular to the polygonal line (17) and dividing the side plate (8) is divided into two (Q), and the core (R1) projected onto the side plate (8) When the center point (S) of the line is on the straight line (Q) and the angle formed by the straight line (Q) and the straight line connecting the point (T ′) and the point (S) is (θ), The relationship between the length (L) between (P) and the point (T), the outer diameter (D1) of the core body (R1), and the height (H) of the storage chamber is L <H− (1 + cos θ) × D1 × 0.5 (−90 ° ≦ θ ≦ 90 ) It is necessary that the tip shape satisfying.
[0022]
When L satisfies this equation, the folding piece (14) does not get in the way when the winding cylinder (R2) is taken out of the storage chamber, and the folding piece (14) is not inserted after the winding cylinder is reinserted into the storage chamber. It is unlikely that it is still folded into the storage room, and even if it is folded, the winding cylinder moves inside the storage room while being used several times, so that it is in its original state, that is, a folded piece. The angle formed between (14) and the side plate (8) is restored to about 90 °.
Furthermore, the folding including a tip shape satisfying L <H− (1 + cos θ) × (D1 + D2) × 0.25 (−90 ° ≦ θ ≦ 90 °) including the relationship with the outer diameter (D2) of the winding cylinder. A piece is more preferred. In this case, the folding piece does not get in the way when the winding cylinder is taken out of the storage chamber, and the folding piece after reinserting the winding cylinder into the storage chamber is in its original state, that is, the folding piece and the side plate are formed. The angle recovers to about 90 °. The tip shape of the folded piece may be an arc shape, a polygonal shape by a combination of straight lines, a trapezoidal shape, or a double mountain shape.
[0023]
When L ≧ H− (1 + cos θ) × D1 × 0.5 (−90 ° ≦ θ ≦ 90 °), the folding piece becomes an obstacle when the winding cylinder is taken out of the storage chamber, and the folding piece is folded back to open. It is necessary to expand the part. In addition, when storing a wound cylinder, the folded piece is folded back into the storage chamber and remains in contact with the end of the wound film or the core of the wound cylinder, so that it does not return to the state before it is naturally folded. In some cases, the rotation of the winding cylinder may be obstructed when the film is pulled out.
[0024]
When the folding piece (14) extends from the upper edge of the auxiliary side plate (9 '), the arbitrary point on the straight line including the broken line (17) passes through (P) and the point (P). The point where the perpendicular of the broken line (17) intersects the tip of the folded piece (14) is (U), and the folded piece (14) and the side plate (8) are on the same plane via the folded line (17). A point symmetrical to the point (U) is (U '), a straight line perpendicular to the polygonal line (17) and dividing the side plate (8) into two is (Q), and a core body projected onto the side plate (8) ( The center point (S) of R1) is on the straight line (Q), and the angle formed by the straight line (Q) and the straight line connecting the point (U ′) and the point (S) is (θ). The relationship between the length (L) between the points (P) and (U), the outer diameter (D1) of the core (R1), and the height (H) of the storage chamber is M <H− (1 + cos θ). ) × D1 × 0.5 (0 ° ≦ θ ≦ 9) °) is preferably a tip shape satisfying.
[0025]
If M is a tip shape satisfying this formula, the folding piece (14) does not get in the way when the winding cylinder (R2) is taken out of the storage chamber, and the folding piece after the winding cylinder is reinserted into the storage chamber. (14) is unlikely to be in a state of being folded into the storage chamber, and the wound cylinder moves in the storage chamber while being used several times even if it is folded. That is, the angle formed between the folded piece (14) and the auxiliary side plate (9 ') is restored to about 90 °.
[0026]
Furthermore, a folded piece having a tip shape including M <H− (1 + cos θ) × (D1 + D2) × 0.25 (0 ° ≦ θ ≦ 90 °), including the relationship with the outer diameter (D2) of the winding cylinder. Is more preferable. In this case, the folding piece does not get in the way when the winding cylinder is taken out of the storage chamber, and the folding piece after re-inserting the winding cylinder into the storage chamber is not naturally folded, that is, the folding piece and The angle formed by the auxiliary side plate is restored to about 90 °. The tip shape of the folded piece may be an arc shape, a polygonal shape by a combination of straight lines, a trapezoidal shape, or a double mountain shape.
[0027]
When M ≧ H− (1 + cos θ) × D1 × 0.5 (0 ° ≦ θ ≦ 90 °), the folding piece becomes an obstacle when the winding cylinder is taken out of the storage chamber, and the folding piece is folded back to open the opening. Need to spread. Also, when storing the wound cylinder, the folded piece is folded into the storage chamber and remains in contact with the end of the wound film or the core of the wound cylinder, so that the film does not return to its original state. There are cases where the rotation of the winding cylinder is obstructed when it is about to be pulled out.
[0028]
As a material used for the storage box of the present invention, various cardboards, basis weight 100 to 600 g / m ² There are no particular restrictions on the amount of paperboard, plastics, etc., but in the case of corrugated cardboard, E, F, G, M, N flute corrugated cardboard with a thickness of about 1.20 to 0.46 mm, so-called microflute. Is preferred. When these microflutes are used, it is preferable that the direction of the corrugated board and the longitudinal direction of the storage box are perpendicular to each other. In the case of paperboard, the basis weight is 350 to 550 g / m. ² A degree of paperboard is more preferred.
[0029]
The height (H) of the storage chamber of the present invention is not particularly limited, but is preferably 40 to 60 mm. Further, the outer diameter (D1) of the core body and the outer diameter (D2) of the wound cylinder body are not particularly limited as long as they are within the storage chamber when a film is wound around the core body for a predetermined length.
The film wound on the winding cylinder stored in the storage box of the present invention is not particularly limited, such as various resin wrap films, aluminum foil, cooking paper, etc., but wrapping such as polyvinyl chloride, polyvinylidene chloride, polyethylene, etc. A film is preferred.
The core of the present invention is not particularly limited, such as paper or plastic.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Next, the evaluation method and evaluation criteria used in the present invention will be described below.
《Cover lockability》
In the storage box described in the examples or comparative examples, a wound tube body having a wound outer diameter of 41 mm was obtained by winding a 30 cm wide film on a paper tube having an outer diameter of 37 mm and a length of 307 mm. The lid was opened, the film was pulled out about 30 cm, the lid was closed, cut with a cutting tool, and the degree of closure of the lid was evaluated. Repeat this operation 10 times, ○ (excellent locking) when the lid does not lift up even once, △ (no practical problem) between 1 and 3 times × (practical) Impossible).
[0031]
<Ease of opening and closing the lid>
Evaluation was performed by opening and closing the lid of the storage box described in the examples or comparative examples.
○ (excellent opening and closing) when there is almost no resistance when opening and closing the lid, △ (no problem in practical use) when there is resistance when opening the lid, resistance when opening and closing the lid Some were marked as x (impractical).
<Ease of loading and unloading the cylinder>
Using the winding cylinder and the storage box used for the evaluation of the lid locking property, the winding cylinder was put in and out of the storage box with the lid opened. The winding cylinder can be taken out without unfolding the folded piece, and the one that the folded piece naturally returned to its original state after reinserting the wound cylinder is ○ (excellent ease of loading and unloading). Even if the end of the cylinder is in contact with the folded piece and the folded piece is folded into the storage room, it is easy to return to the original state during use (no problem in practical use). A case where the winding cylinder cannot be taken out and the folded piece comes into contact with the end portion of the winding cylinder when it is inserted and is not completely restored because it does not return is indicated as x (impractical).
[0032]
<Comprehensive evaluation criteria>
Of the three evaluation results described above, the case where there was no x was accepted and the case where x was 1 or more was rejected.
Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples.
[0033]
[Examples and comparative examples]
Hereinafter, examples and comparative examples will be further described, but these do not limit the scope of the present invention. The basic structure (excluding folded pieces) of the storage box provided for the examples is the same as that shown in FIG. 1, that is, the basis weight is 450 g / m. ² The upper part formed by each surface of the front plate (1), the bottom plate (2), the rear plate (3), the side plate (8) and the auxiliary side plate (9), (9 ') was opened using A storage chamber (12) having a height (H) of 43 mm, a depth of 43 mm, and a length of 312 mm, and a lid plate (4) that can be opened and closed from the upper edge of the rear plate (3) of the storage chamber and is connected in a direction covering the storage chamber (Distance between the broken lines in the depth direction 44 mm) and a rectangular parallelepiped shape comprising a lid (13) formed on each surface of the lid lid piece (5), the lid lid side plate (10), and the lid lid side plate (11). A cylindrical body having a box body (polyvinylidene chloride film having a width of 30 cm, a length of 20 m, and a thickness of 10 microns, a core body (R1) having an outer diameter (D1) of 37 mm and a length of 307 mm). A necessary amount of wrap film is drawn from a wound tube (outer diameter (D2) is 41 mm) by winding it around a paper tube. Various folding pieces are formed on the basis of this storage box, and the width (maximum width) in the vicinity of the root of the protrusion (15) is 50% of the width of the folding piece (14). The length of the protrusion (15) protruding outward from the storage chamber was 2 mm.
[0034]
For the examples (experiment NO.1-5) and comparative examples (experiment NO.6-8) in which the folded piece (14) extends from the upper edge of the side plate (8), the dimensions and evaluation results of each part are shown. It is shown in 1. In addition, experiment NO. In No. 5, a corrugated cardboard of G flute with a thickness of 0.5 mm was used as the material of the storage box, so that the cardboard step direction and the longitudinal direction of the storage box were perpendicular to each other.
[0035]
[Table 1]

[0036]
Table 2 shows the dimensions and evaluation results of the parts (experiment NO. 9 to 10) and the comparative example (experiment NO. 11 to 12) of the folding piece (14) extending from the auxiliary side plate (9 '). Show.
[0037]
[Table 2]

[0038]
These results revealed the following.
First, in the case where the folded piece extends from the upper edge of the side plate, the experiment No. 1 satisfying L <H− (1 + cos θ) × D1 × 0.5 (−90 ° ≦ θ ≦ 90 °). 1 is an experiment No. 1 outside this range. Compared with 6, 7, and 8, the lockability of the lid, the ease of opening and closing the lid, and the ease of loading and unloading of the wound cylinder are harmonized. For the case where the folded piece extends from the upper edge of the auxiliary side plate, the experiment No. 1 satisfying M <H− (1 + cos θ) × D1 × 0.5 (0 ° ≦ θ ≦ 90 °). 9 is an experiment NO. Compared with 11 and 12, the lockability of the lid body, the ease of opening and closing the lid body, and the ease of loading and unloading the winding cylinder body are harmonized.
[0039]
Second, the experiment No. 1 satisfying L <H− (1 + cos θ) × (D1 + D2) × 0.25 (−90 ° ≦ θ ≦ 90 °). Experiments No. 2, 4, 5 satisfying M <H− (1 + cos θ) × (D1 + D2) × 0.25 (0 ° ≦ θ ≦ 90 °). No. 10 is further excellent in harmony with the locking property of the lid, the ease of opening and closing the lid, and the ease of loading and unloading of the wound cylinder.
Third, experiment NO. With a fitting part. Nos. 4 and 5 are experiment NO. Compared to 1, 2, and 3, the locking property of the lid is further excellent.
Fourth, experiment NO. Using G flute cardboard as the material constituting the storage box. No. 5 was more excellent in strength and durability when held in the hand than the paperboard storage box of other experiments.
[0040]
【The invention's effect】
The storage box provided with the folding piece of the present invention has three functions by improving the ease of loading and unloading of the wound cylindrical body while maintaining the locking ability of the lid and the ease of opening and closing the lid. It is an easy-to-use storage cylinder storage box.
[Brief description of the drawings]
FIG. 1 is a three-dimensional schematic diagram showing a state in which a cover of a wound tube storage box showing an embodiment of the present invention is opened.
FIG. 2 is a development view of the wound cylinder storage box shown in FIG.
FIG. 3 shows the lengths (L) and (M) of the folding pieces of the storage box according to the present invention, the height (H) of the storage box, the outer diameter (D1) of the core body, and the outer diameter (D2) of the winding cylinder body. FIG.
FIG. 4 is an enlarged view showing an example of a tip shape of a folding piece (14) extending from a side plate (8) and a shape of a protrusion (15) in the storage box of the present invention.
FIG. 5 shows an example in which a concave and convex portion is applied to the side cover piece auxiliary side plate (11) inside the lid at the portion where the tip of the projection (15) contacts when the lid is opened and closed in the storage box of the present invention. It is an enlarged view.
FIG. 6 is a development view of a wound tube storage box showing another embodiment of the present invention.
FIG. 7 is an enlarged view showing an example of a tip shape of a folding piece (14) extending from an auxiliary side plate (9 ′) and a shape of a protrusion (15) in the storage box of the present invention.
[Explanation of symbols]
1 Front plate
2 Bottom plate
3 Rear plate
4 Cover plate
5 Cover lid piece
6 Opening pieces
7 Edge folds
8 Side board
9 Auxiliary side plates
9 'auxiliary side plate
10 掩 lid side plate
11 Auxiliary side plate
12 Storage room
13 Lid
14 Folding pieces
15 protrusions
16 score line
17 Line
18 Fitting part
19 Cut line
D1 Outer diameter of core
D2 Outer diameter of cylinder
F film
H Storage box height
K cutting tool
L Length from the arbitrary point (P) of the folded piece extending from the side plate
M Length from any point (P) of the folded piece extending from the auxiliary side plate
R1 core
R2 winding cylinder

Claims

A storage chamber (12) having an open upper portion comprising the front plate (1), the bottom plate (2), the rear plate (3), the side plate (8), the auxiliary side plate (9), (9 '); An openable and closable lid (13) connected in a direction to cover the storage chamber composed of each surface of the lid plate (4), the lid piece (5), the lid piece side plate (10), and the lid piece auxiliary side plate (11); A cylindrical body formed of a rectangular parallelepiped box, a core body (R1) stored in the storage chamber (12), and a cylindrical body (R2) made of a film (F) having a predetermined length. In the storage box, a folding piece (14) is extended from the upper edge of the side plate (8) via a fold line (17) from the upper side of the opening of the storage chamber (12) to the storage chamber side. 17) A cut line (16) is formed in the portion so that a protrusion (15) protruding outside the storage chamber is formed when the folding piece (14) is folded toward the storage chamber. An arbitrary point on a straight line including the broken line (17) is (P), and a perpendicular line of the broken line (17) passing through the point (P) is intersected with the tip of the folded piece (14) (T). In the state where the folding piece (14) and the side plate (8) are on the same plane, a point symmetrical to the point (T) via the broken line (17) is set to (T '), and the side perpendicular to the broken line (17) is set to the side. The straight line dividing the plate (8) into two is (Q), the center point (S) of the core (R1) projected on the side plate (8) is on the straight line (Q), and the point (T ′) And the straight line connecting the point (S) and the straight line (Q) are defined as (θ), the length (L) between the point (P) and the point (T), and the core (R1) ) Having an outer diameter (D1) and a height (H) of the storage chamber satisfying the expressions (1) and (2).
L <H− (1 + cos θ) × D1 × 0.5 (1) Formula −90 ° ≦ θ ≦ 90 ° (2) Formula

A storage chamber (12) having an open upper portion comprising the front plate (1), the bottom plate (2), the rear plate (3), the side plate (8), the auxiliary side plate (9), (9 '); An openable and closable lid (13) connected in a direction to cover the storage chamber composed of each surface of the lid plate (4), the lid piece (5), the lid piece side plate (10), and the lid piece auxiliary side plate (11); A cylindrical body formed of a rectangular parallelepiped box, a core body (R1) stored in the storage chamber (12), and a cylindrical body (R2) made of a film (F) having a predetermined length. In the storage box, a fold piece (14) is extended from the upper edge of the auxiliary side plate (9 ') through the fold line (17) from the upper side of the opening of the storage chamber (12) to the storage chamber side. The fold line (17) is formed with a cut line (16) so that a protrusion (15) is formed that protrudes outside the storage chamber when the folding piece (14) is folded into the storage chamber side. Is formed, and an arbitrary point on the straight line including the broken line (17) is defined as (P), and a perpendicular line of the broken line (17) passing through the point (P) is intersected with the tip of the folded piece (14) ( U), with the folding piece (14) and the side plate (8) on the same plane, a point symmetrical to the point (U) via the broken line (17) (U ') and perpendicular to the broken line (17) (Q), and the center point (S) of the core (R1) projected on the side plate (8) is on the straight line (Q). The length (M) between the point (P) and the point (U) and the core when the angle formed by the straight line (Q) and the straight line connecting (U ′) and the point (S) is (θ) A wound tube storage box characterized in that the relationship between the outer diameter (D1) of (R1) and the height (H) of the storage chamber satisfies the expressions (3) and (4).
M <H− (1 + cos θ) × D1 × 0.5 (3) Equation 0 ° ≦ θ ≦ 90 ° (4) Equation

A fitting portion (18) for fitting the protrusion (15) when the lid is closed is formed on the inner upper portion of the lid (13) where the lid lid side plate (10) and the lid cover piece auxiliary side plate (11) overlap. The wound tubular body storage box according to claim 1 or 2, wherein

The material for forming the storage box is a corrugated cardboard having a thickness of 1.5 mm or less.