JP4232136B2

JP4232136B2 - File case

Info

Publication number: JP4232136B2
Application number: JP2001110089A
Authority: JP
Inventors: 裕新井; 裕二猪原; 洋行山下
Original assignee: Lihit Lab Inc
Current assignee: Lihit Lab Inc
Priority date: 2001-04-09
Filing date: 2001-04-09
Publication date: 2009-03-04
Anticipated expiration: 2021-04-09
Also published as: JP2002300912A

Description

【０００１】
【発明の属する技術分野】
この発明は、書類の収納・運搬時等に用いるファイルケースに関するものである。
【０００２】
【従来の技術】
これまでの紙製もしくはプラスチック製のファイルケースを図１８、図１９に示す。図１８は全体図、図１９は側面図であり、ファイルケースの開閉の様子を示すものである。図１９ａが開口時、図１９ｂが閉口時である。図１９ａに示すように、従来のファイルケースにおいて、収納物を取り出す場合、蓋部１０１を２点差線で示す程度にまで、開かなくてはならなかった。また、図１９ｂに示すように、一旦開いた蓋部１０１は、蓋部と収納部１０２との結合部１０３の弾性により、矢印に示す方向（閉じる方向）に力が働く。そのため、収納物の出し入れの間、蓋部１０１を抑えておかなければならず、収納物の出し入れが容易ではなかった。
【０００３】
【発明が解決しようとする課題】
そこで、この発明はファイルケースにおいて、その収納物の出し入れを容易にすることを課題とする。また、ファイルケースの運搬時を考慮した適切な補強を目的とする。
【０００４】
【課題を解決するための手段と効果及びその実施形態】
［１］そこで、この発明は「略直方体のファイルケースであって、
・このファイルケースは、収納底面部１１とその周囲に前後の収納正面部１２と左右の収納側面部１３を有し上方が開口する箱状の収納部１と、
この収納部１における前後の収納正面部１２の上端に屈曲可能に取付けられた前と後の二つの開閉部２とからなり、
・一方の開閉部２の開閉動作に連動して、他方の開閉部２も開閉するように、両開閉部２の側面である開閉側面部２２同士を連結したことを特徴とするもの」である。
【０００５】
この発明におけるファイルケースの全体図を図１と図２に示す（図１が閉口時、図２が開口時）。図１に示すように、閉口時のファイルケースは全体が平坦な略直方体である。図２に示すように、この発明のファイルケースは上側の二つの開閉部２がそれぞれ前後に開き（揺動し）、ファイルケースへの物の出し入れを可能とするものである。
【０００６】
収納部１は、底に位置する収納底面部１１、その収納底面部１１の周囲に略直角に前と後に収納正面部１２、収納底面部１１の両端（右左）に収納側面部１３を有するものであり、上方が開口する。
【０００７】
開閉部２は、前記ファイルケースの上側の部分であって、前記収納部１の収納正面部１２の上端に位置する開閉正面部２１、この開閉正面部２１の周囲に略直角に位置する開閉側面部２２と開閉上面部２３を有する。そして、前記収納正面部１２と開閉正面部２１とは屈曲可能とし、これにより開閉部２の開閉動作を可能とする。この収納部１と開閉部２を屈曲可能に取付けた部分を屈曲部とし符号２４で示す。
【０００８】
左右の開閉部２の形状は、閉口時にファイルケース全体として略直方体となるように、双方の開閉上面部２３と開閉側面部２２が面一となる形状とする。
【０００９】
この発明は、ファイルケースの持ち運びの便宜を考慮して、その開閉上面部２３にハンドル５１を設ける。ハンドル５１は一方の開閉部２の開閉上面部２３に設けてもよいし、双方の開閉上面部２３に設けてもよい。
【００１０】
この開閉部２は、一方の開閉部２の開閉動作に連動して、他方の開閉部２も開閉するように、両開閉部２の側面である開閉側面部２２同士を連結したことを特徴とするものである。
【００１１】
ここで「一方の開閉部２の開閉動作に連動し、他方も開閉する」とは、使用者が図１に示す開閉部２ａに取付けたハンドル５１を握り、図に示す後側にこの開閉部２ａを開いたとき、他方の開閉部２ｂがこの開閉部２ａの開きに合わせて前側に開くことをいう。この開閉部２ａと開閉部２ｂを連結させる具体的構成は後述する。
【００１２】
（効果）
以上のように、この発明は二つの開閉部２を収納部１の収納正面部１２の上端に屈曲可能な状態で取付ける。二つの開閉部２が開口した状態では、収納部１の上方全体が開口することとなる。これにより、収納物を収納部１の真上から出し入れすることができ、収納・取り出しの動作が容易になる。また、この発明は一方の開閉部２の動きに連動して他方の開閉部２も開閉する。これにより,使用者は開閉部２の開閉動作を容易に行える。特にこのことは開閉上面部２３にハンドル５１を取付けた実施形態において顕著である。更に、開閉部２の双方にハンドル５１を設ける実施形態でも、一方の開閉部２を動きに合わせて他方も開閉することから、開閉動作を迅速・容易に行える利点がある。
【００１３】
なお、図１、図２に示す全体図では、より望ましい実施形態として、ファイルケースを補強するための部材として、開閉部２同士が接する側の開口部周囲に主支持部材５ａ、副支持部材５ｂを用いている。更に、スライド式の係止手段６（その係止具６１）と開閉を容易にするための屈曲部材７を用いている。図に示す符号９５は開閉を容易にするための指掛部である。
【００１４】
なお、前記「開口部」とは、二つの開閉部２が接する側（中心側）の開閉部２の端部をいい、具体的に開閉上面部と左右の開閉側面部の端部によって形成される部分をいう。開口部とする部分を符号をもって特定することは困難なので符号は省略する。
（連結板）
［２］この発明は、一方の開閉部２の開閉動作に連動して、他方の開閉部２も開閉するように、開閉側面部２２同士を連結する。その望ましい形態としては「略直方体のファイルケースであって、
・このファイルケースは、収納底面部１１とその周囲に前後の収納正面部１２と左右の収納側面部１３を有し上方が開口する箱状の収納部１と、
この収納部１における前後の収納正面部１２の上端に屈曲可能に取付けられた前と後の二つの開閉部２とからなり、
・この開閉部２の側面を開閉側面部２２とし、同一側面における二つの開閉側面部２２の下方に、それぞれ回転自在の連結板２０４を取付け、
・この連結板２０４の取付け位置を連結部２０３とし、この連結部２０３から開閉部２の開閉の程度に応じて適宜に離れた位置で、この連結板２０４同士を回転自在に取付けたことを特徴とするもの」である。
【００１５】
この実施形態を図３に示す。図３はファイルケースの側面を示すものである。符号２０１は開閉部２における前開閉部を、符号２０２は開閉部２における後開閉部を、符号１３は収納部１の収納側面部１３である。
【００１６】
符号２０３は連結部であって、前開閉部２０１の連結部を符号２０３ｃ、後開閉部２０２の連結部を符号２０３ｄとする。符号２０４はこの連結部２０３に回転自在に取付けられる連結板であり、連結部２０３ｃに取付けられる連結板を符号２０４ｃ、連結部２０３ｄに取付けられるものを符号２０４ｄとする。この二つの連結板２０４は、前記した連結部２０３から適宜に離れた位置で回転自在に取付けられる。連結板２０４同士を取付けた位置を中央連結部とし符号２０７で示す。この中央連結部２０７から前記連結部２０３までの距離（取付距離２０９）は開閉部２の開閉の程度に応じて決める。
【００１７】
この開閉部２が開閉する態様を図３a〜cに示す。図３aは閉口時、図３bは開く途中、図３cは最大に開いた状態である。この開閉部２は収納部１上端の屈曲部２４を中心に揺動する。図３cに示すように、最大に開いた状態は、前記した二つの連結板（２０４ｃと２０４ｄ）が直線状になったときである。連結部２０３から中央連結部２０７までの取付距離２０９が大きいと開閉部２の最大開きは大きい、一方、取付距離２０９が小さいと開閉部２の最大開きは小さくなる。
【００１８】
開閉部２と連結板２０４、及び、連結板２０４同士を回転自在に取付ける構造の一例は、適宜な孔と、この孔と同径もしくは若干小さな径のビスを用いてビス止めする構造で実施可能である。
【００１９】
なお、この実施形態において、前後の開閉部（２０１、２０２）に設けられる二つの連結部２０３は同じ高さにある必要はなく、上下に高低差を有してもよい。連結板２０４の材料としては、薄い板が望ましく、伸縮性のない素材の他、伸縮性に富む材料を用いても実施可能である。
（案内溝３２）
［３］また、この発明の望ましい実施形態は「略直方体のファイルケースであって、以下の構成を有することを特徴とするものである。
・このファイルケースは、収納底面部１１とその周囲に前後の収納正面部１２と左右の収納側面部１３を有し上方が開口する箱状の収納部１と、
この収納部１における前後の収納正面部１２の上端に屈曲可能に取付けられた前と後の二つの開閉部２とからなる。
・この開閉部２の側面を開閉側面部２２とし、開閉部２の閉口時から開口時まで、常に開閉側面部２２の一部分が重複するようにする。
・一方の開閉側面部２２にはこの重複範囲に凸部３１を設け、この凸部３１を設けた開閉部２を主開閉部２ａ、その開閉側面部２２を主開閉側面部２２ａとし、他方の開閉部２を副開閉部２ｂ、その開閉側面部２２を副開閉側面部２２ｂとする。
・この副開閉側面部２２ｂには、閉口時の前記凸部３１と重複する位置に前記凸部３１の径と略同一幅の案内溝３２を設け、この案内溝３２を下方線３５から前記主開閉部２ａの屈曲部２４ａまでの案内溝範囲３６内に延長する。
・この案内溝３２を延長する長さは開閉部２の開閉の程度に応じて適宜距離とする。
・前記凸部３１をこの案内溝３２の内側に配し、案内溝３２内を移動可能とする。」
（効果）
この案内溝３２を設ける形態であれば、簡単な構造でありながら、二つの開閉部２を連結して開閉させることができる。特に、側面の構造が薄いため、外観及び内観が美しい。
【００２０】
（側面部）
この発明の実施形態を図４に示す。図４はこの実施形態におけるファイルケースの閉口時の側面である。下側に位置する収納側面部１３の上、左側に主開閉側面部２２ａを、右側に副開閉側面部２２ｂを配している。この実施形態では、開閉部２の閉口時から開口時まで、常に開閉側面部２２の一部分が重複するようににする。図では主開閉側面部２２ａを手前側としその輪郭を実線であらわす。副開閉側面部２２ｂは奥側とし、前記主開閉側面部２２ａ及び収納側面部１３と重複する部分の輪郭を点線で示す。この副開閉側面部２２ｂにおいて点線で示される部分が重複する部分である。
【００２１】
（凸部３１：案内溝３２）
図に示す主開閉側面部２２ａであってこの重複する部分に、奥側に凸となる凸部３１を設け、これを符号３１として示す。副開閉側面部２２ｂには、閉口時にこの凸部３１と重複する位置に案内溝を設け、これを符号３２として示す。この案内溝３２は主開閉側面部２２ａと収納側面部１３の内側に位置するものなので点線で示す。
【００２２】
「凸部３１」は、ファイルケースの外側もしくは内側からビスやネジを用いて側面部を貫通させて形成したり、主開閉側面部２２ａの凸部３１となる部分だけ肉厚を大きくして凸部３１を形成したり、また、後述する主支持部材５ａに凸部３１を設けるなど、様々な形態で成形可能である。
【００２３】
「案内溝３２」とは、前記した凸部３１をその溝内に配するものであり、開閉部２の開閉動作にあわせ、前記凸部３１がこの案内溝３２の中を移動するものである。この実施形態は、主開閉部２ａの開閉動作に連動して、この凸部３１を案内溝３２の中で移動させ、副開閉部２ｂも開閉するようにしたものである。
【００２４】
（案内溝範囲３６）
この案内溝３２は閉口時の凸部３１の位置から案内溝範囲３６内に延長する。この「案内溝範囲３６」とは、図４に示す凸部３１の位置から下方に向けての垂線である下方線３５を基準とし、主開閉部２ａの屈曲部２４ａまでの範囲をいい、図に示す凸部３１と屈曲部２４ａとが同じ高さの実施形態では、下方線３５を基準にして0〜90°の範囲である。0°とは、凸部３１から真下に引いた下方線３５の方向である。90°とは、前記閉口時における凸部３１位置から屈曲部２４ａ方向への水平線である。
【００２５】
この案内溝３２の溝幅３７は、前記凸部３１がこの案内溝３２内を移動可能とするために、凸部３１の径と略同一とする。なお、凸部３１が滑らかに移動出来る範囲であれば、溝幅３７を凸部３１の径より若干大きくしたものであってもよく、この場合も略同一の幅とする。
【００２６】
（案内溝３２の形状）
開閉部２を全開したときの開閉部２の位置や、主開閉部２ａの開閉動作に対して副開閉部２ｂがどの程度開閉するのか等は、案内溝３２の角度（下方線３５を基準とする案内溝角３９）とこの案内溝３２の長さ（案内溝長さ３８）によって決められる。その一例としては、案内溝長さ３８が大きいと大きく開き、小さいと小さく開くものである。ここでA４サイズのファイルケースで案内溝角３９が45°の場合、この案内溝長さ３８としては１５〜３０ｍｍ程度が望ましい。また、案内溝角３９が小さいと大きく開き、角度が大きいと小さく開くものである。
【００２７】
案内溝３２の形状は略直線上であるが、厳密に直線である必要はなく、図４に示すように多少湾曲させた形状、また、波形の形状であってもよい。これらを含めてこの発明における略直線状の案内溝３２である。そして、この案内溝３２の中を滑らかに凸部３１を移動させる観点から、この案内溝３２は開閉部２の開口時に、凸部３１が当接する案内溝３２の辺（上辺４０）側を凸とする湾曲した形状が望ましい。
【００２８】
また、開口した開閉部２が自然に閉じてしまうことのないように、案内溝３２の上辺４０には凸部３１が浅く嵌りこむような窪み（固定化窪み４１）を設けてもよい。図４の案内溝３２では、最大開口時において凸部３１が位置する場所にこの固定化窪み４１を設けたものである。この固定化窪み４１に凸部３１がはまると、凸部３１は案内溝３２内の移動が制限されるので、開閉部２が自然に閉じることを防止できる。
【００２９】
（案内溝３２の方向）
前記案内溝３２は図４に示す下方線３５を基準として前記案内溝範囲３６内のいずれかの方向に延長する。ここで、延長する角度を変えたものを図５に示す。図５はこの案内溝３２を設ける副開閉側面部２２ｂを実線で示し、主開閉側面部２２ａ及び収納側面部１３を点線で示したものである。案内溝３２を0°方向に延長したを図５ａに、45°方向に延長したものを図５ｂに、90°方向に延長したものを図５ｃに示す。この発明は図に示す0〜90°の範囲に案内溝３２を延長する形態で実施可能である。
【００３０】
ここで案内溝角３９が0°より小さな形態（マイナス角）や、90°より大きな形態の場合、案内溝３２内を凸部３１が円滑に移動できず、開閉部２を充分に開くことができないので望ましくない。
【００３１】
そして、案内溝３２を延長する角度は、凸部３１を設けた主開閉部２ａの開閉の程度に合わせて、案内溝３２を設けた副開閉部２ｂをどの程度開閉させるかを考慮して決めればよく、主開閉部２ａと同じ程度に副開閉部２ｂを開く観点からは、この案内溝角３９は30〜60°の範囲が望ましい。
【００３２】
なお、ファイルケース全体の形状に特に制限はない。図１に示すように横長の形状のほか、縦長の形状であってもよい。また、収納部１と開閉部２の高さの比にも特に制限はない。１：１程度のほか、収納部１が大きい形態、開閉部２が大きい形態などで実施可能である。更に、前と後にある双方の開閉部２も同じ大きさである必要はない。
（側面補強板４５：補強案内溝４６）
［４］前記した発明においてファイルケースの側面は、収納側面部１３と二つの開閉側面部２２（主開閉側面部２２ａと副開閉側面部２２ｂ）によって構成される。ここで、この発明の望ましい実施形態は「前記したファイルケースであって、以下の構成を有することを特徴とするものである。
・開閉部２の開閉動作に対応して移動する前記凸部３１の移動範囲と、前記収納側面部１３の略全体に、側面補強板４５を設ける。
・前記屈曲部２４ａから凸部３１までの距離を凸部距離２６とし、この屈曲部２４ａに対応する屈曲対応位置４７を中心にこの凸部距離２６を半径とする円弧状であって、かつ、凸部３１の移動範囲に、この凸部３１と略同一の幅である補強案内溝４６を、前記側面補強板４５に設ける。
・前記凸部３１をこの補強案内溝４６内に配し、かつ、補強案内溝４６内を移動可能とする。」
（効果）この実施形態は、ファイルケースの側面に側面補強板４５を設け、ファイルケースの側面を強化する。更に、この側面補強板４５に補強案内溝４６を設け、この補強案内溝４６内に前記凸部３１を配し、移動可能とすることで、この発明のポイントの一つである案内溝３２と凸部３１からなる部分（連結機構３部分）の強化も図るものである。
【００３３】
（側面補強板４５）
側面補強板４５とは、ファイルケースの側面に取付けられる板状の部材であって、その全体図を図６に示す。側面補強板４５はファイルケースの側面の内側に取付けられる板であり、その下側は収納側面部１３と略同じ形状とする。具体的に、補強側面板の幅は前記収納側面部１３の内側の幅と略同一とする。そして、その上側は、収納側面部１３から上に突出する部分であり、前記凸部３１が移動する範囲と重複する範囲にまで延長する。図に示す側面補強板４５は図４に示す側面の内側に取付けられるものであり、図中の符号４７は屈曲部２４ａに対応する屈曲対応位置４７となる。
【００３４】
この側面補強板４５は、ファイルケース側面の補強を目的として、収納側面部１３の略全体に取付けられる。この目的を達成する程度であれば、適宜に形状を変更することが可能であり、厳密に収納側面部１３の全体に取付けられる必要は無い。
（開口の制御）
この側面補強板４５の上側には補強案内溝４６を設ける。補強案内溝４６の形状は主開閉部２ａに設けられた凸部３１の開閉動作時の移動軌跡に対応して決められる。具体的に、凸部３１は主開閉部２ａの開閉時に、屈曲部２４ａを中心とする円弧上を揺動する。よって、図４に示す屈曲部２４ａから凸部３１までを凸部距離２６としたとき、この補強案内溝４６は前記屈曲対応位置４７を中心に前記凸部距離２６を半径とする円弧上の溝である。溝の幅（補強案内溝４６幅）は前記案内溝３２と同様に、凸部３１と略同一もしくは若干大きい程度とする。
【００３５】
開閉部２の開口の程度は、副開閉側面部２２ｂに設ける案内溝３２の長さによって制御することが可能である。その場合、案内溝３２の端に凸部３１が当たり、凸部３１の移動を制限し、開閉部２のそれ以上の開きを抑える。
【００３６】
この側面補強板４５を用いる実施形態の場合、補強案内溝４６によって開口の程度を制御することができる。その場合、凸部３１は案内溝３２の端ではなく、補強案内溝４６の端４８で移動が制御される。補強案内溝４６によって開口の程度を制御する場合、最大の開口時の凸部３１位置に補強案内溝４６の端４８が位置するように設定する。
（開閉の態様）
凸部３１と案内溝３２によって、主開閉部２ａの動きに連動して副開閉部２ｂが開閉する様子を図７a〜cを用いて説明する。更に、前記補助案内溝４６も示し、凸部３１が補助案内溝４６を移動する様子も説明する。
【００３７】
図７a〜ｃは主開閉部２ａと副開閉部２ｂの開閉の様子を、案内溝３２内を移動する凸部３１を中心に示すものであり、図７aは閉口時（位置１）、同図bは開口途中（位置２）、同図cは開口時（位置３）である。図７aでは閉口時の凸部３１を実線で示し、案内溝３２を鎖線で示し、補助案内溝４６を２点鎖線で示したものである。更に、移動していく凸部３１を点線で示したものである。図７b、７cも同様に移動していく凸部３１を点線で示す。そして、補助側面板４５に設けた補助案内溝４６は全ての図面で２点鎖線で示す。なお、この図では主開閉部２ａの主開閉上面部２３ａに後述するハンドル５１を取付けたものである。
（位置1）凸部３１は案内溝３２内の右上に位置する（図７a）。
（位置２）次に、主開閉部２ａを少し開いたとき（左に開く）、凸部３１は主開閉部２ａの屈曲部２４ａを中心に同心円状に移動する。この凸部３１の移動により、案内溝３２の上辺４０は凸部３１に押し上げられる。これにより、副開閉部２ｂは副屈曲部２４ｂを中心に屈曲し右に開く。その際、凸部３１は案内溝３２の中を移動し、案内溝３２の中心付近に移動する（図７b）。
（位置３）更に、主開閉部２ａを開いたとき、凸部３１は更に案内溝３２の上辺４０を押し上げ、副開閉部２ｂを右に開かせる。凸部３１は案内溝３２の中を左端に移動する（図７c）。そして、案内溝３２の上辺４０に設けた前記固定化溝４１に凸部３１がはまり込み、開閉部２の開口した状態が維持される。
（閉口時）開いた開閉部２を閉じる場合は、上記した移動の逆であり、主開閉部２ａを閉じると凸部３１が案内溝３２の下辺４２を押し下げ、主開閉部２ａに連動して副開閉部２ｂが閉じる。
（支持部材＋ハンドル５１）
［５］この発明を実施するにあたり、持ち運びを考慮するとファイルケースの上側にはハンドル５１を設ける形態が望ましい。しかし、このハンドル５１を用いた実施形態では、収納物の重量はハンドル５１の取付け部分に集中してしまう。よって、収納物の重量に対抗するためにはハンドル５１の取付け部に集中する過重を分散させる必要がある。また、ハンドル５１を用いる形態では、収納部１に納められた収納物の重量はすべてハンドル５１を設けた開閉部２の屈曲部２４が支えることとなる。
【００３８】
そこで、この発明の望ましい実施形態は「前記したファイルケースであって、以下の構成を有することを特徴とするものである。
・案内溝３２と凸部３１からなる構成を連結機構３とし、この連結機構３を左右双方の開閉側面部２２に設ける。
・開閉部２において開閉部２同士が接する側の部分を開口部とし、前記主開閉部２ａにおけるこの開口部の周囲に、この開口部と略同一形状の内形を有し、かつ、略コの字状であり、ファイルケースの主材料であるケース材より強度に優れる主支持部材５ａを、一方の連結機構３から他方の連結機構３まで設ける。
・この主支持部材５ａにおいて、開閉側面部２２に設けられる部分を主支持側面部５２とし、この主支持側面部５２に前記連結機構３における凸部３１を取付ける。
・この主支持部材５ａに、このファイルケースの持ち運びを容易にするハンドル５１を取付ける。」
（効果）
上記するように、この発明の望ましい実施形態は、開閉部２を補強するために開口部周辺に主支持部材５ａを設け、この主支持部材５ａにハンドル５１を取付ける。これにより、ハンドル５１をより強固に取り付けることができる。また、ハンドル５１を取付けた開閉上面部２３が壊れてしまうことを防ぐことができる。更に、この実施形態では、この主支持部材５ａを一方の連結機構３から他方の連結機構３にまで配し、さらに、前記凸部３１をこの主支持部材５ａに取付ける。これにより、収容物の重量は屈曲部２４のみならず、この主支持部材５ａを介してよってハンドル５１に直接伝えられる。これにより収容物の重量を分散させることが可能となり、より重い収納物を運ぶことが可能となる。
【００３９】
ここで「ケース材」とは、ファイルケースの本体を構成する素材のことであり、具体的にはプラスチックや強化した紙である。そして、この「ケース材より強度に優れる主支持部材５ａ」としては、金属や硬化したゴム素材などのほか、ＡＢＳ、ファイルケース本体より厚みのあるプラスチックなどを用いることができる。
（主支持部材５ａと凸部３１の一体化）
［６］この発明における連結機構３の凸部３１は、前記したようにビスやネジを用いて成形する形態で実施可能である（ネジ９３を用いて成形する形態を図２０に示す）。ここで、前記する主支持部材５ａを用いた望ましい実施形態は「前記したファイルケースであって、
・前記凸部３１と前記主支持側面部５２が一体成形され、
・この凸部３１が主開閉側面部２２ａと、副開閉側面部２２ｂに設けられた案内溝３２を貫通し、
・かつ、ファイルケースの内部からこの凸部３１の抜けを防止する手段を設けたことを特徴とするもの」である。
【００４０】
（効果）
凸部３１には大きな荷重がかかるため、強度が求められる。また、生産性向上の観点からは、凸部３１と案内溝３２からなる連結機構３の組立の容易化が求められる。そこで、この実施形態では、主支持側面部５２の一部として凸部３１を一体成形し、この凸部３１を主開閉側面部２２ａと前記案内溝３２を貫通させる。これにより、強度に優れる凸部３１を安価に製造することができる。ファイルケースの組立工程において、主開閉部２ａに主支持部材５ａを取付けることで、同時に凸部３１も出来上がるので組立工程も短縮化される。
【００４１】
更に、ファイルケースの側面に前記した側面補強板４５を用いる実施形態の場合、その望ましい実施形態は「前記したファイルケースであって、前記凸部３１が、主開閉側面部２２ａと前記案内溝３２と補強案内溝４６を貫通し、かつ、ファイルケースの内側からこの凸部３１の抜けを防止する手段を設けたことを特徴とするもの」である。
【００４２】
（主支持部材５ａ）
前記［５］と［６］の実施例を図２、図８に示す。この実施例では、図２に示すように左右の側面双方に連結機構３を設ける。そして、主支持部材５ａとは、一方の連結機構３から他方の連結機構３まで主開閉部２ａの開口部の外周を覆う略コの字形の部材である。主支持部材５ａは主開閉部２ａの開口部外側に取付けられるものであり、その内側の形状は、主開閉部２ａの外側の形状と略同一とする。
【００４３】
（主支持部材５ａの取付け方）
主支持部材５ａの取付けに特に制限はなく、接着や溶着、また、ビスなどを用いて取付けてよい。そして、この実施例では、接着するのみならず、より強固に取付ける観点から、後述する裏支持部材５３を用いて、主開閉上面部２３を主支持部材５ａと裏支持部材５３で挟み込み、これらを一緒に貫くようにビス止めする。この実施例では、ケース材を厚さ１．０ｍｍとし、その素材にＰ．Ｐ．（ポリプロピレン）を用いる。一方、主支持部材５ａには強度に優れる素材としてＡＢＳを用いる。
【００４４】
この主開閉部２ａと主支持部材５ａの構成を分解したものを図８に示す。図は外側に主支持部材５ａを、その内側（左側）に主開閉部２ａ、副開閉部２ｂ、更に、側面補強板４５、抜け防止リング５５を示すものである。
【００４５】
図に示すように、主支持側面部５２の内側には凸部３１を一体成形する。この凸部３１の外周には、抜けを防止するためのリング用溝５４を設ける。
【００４６】
この凸部３１は、主開閉側面部２２ａに設けた凸部用孔３４、副開閉側面部２２ｂに設けた案内溝３２を貫通する。更に、この実施例は側面補強板４５を用いるため、補強案内溝４６も貫通する。
【００４７】
貫通させた凸部３１には、抜けを防止する手段として、凸部３１の径より小さな内径を有する抜け防止リング５５をかませる。抜け防止リング５５は、前記凸部３１に設けたリング用溝５４で固定される。
【００４８】
なお、主支持側面部５２にネジ用孔９１を設け、この孔に内側からワッシャー９２を通じてネジ９３で凸部３１を形成する構成を図２０に示す。
（副支持部材５ｂ）
［７］更に、この発明の望ましい実施形態は、「前記したファイルケースであって、以下の構成を有することを特徴とするものである。
・前記副開閉部２ｂにおける上面を副開閉上面部２３とし、この副開閉上面部２３であって開口部の略全体に、ファイルケースの主材料であるケース材より強度に優れる副支持部材５ｂを設ける。
・開閉部２の閉口時において、前記主支持部材５ａが下に、前記副支持部材５ｂが上になる形態で重なり合う。」
（効果）
このように、前記した主開閉部２ａに主支持部材５ａを設けるのみならず、副開閉部２ｂに副支持部材５ｂを設け、閉口時に、この副支持部材５ｂを前記主支持部材５ａの上側に配置することで、この副開閉部２ｂに係る荷重が主支持部材５ａを介してハンドル５１に伝わる。これにより、収容物の荷重は前記した屈曲部２４ａと主支持部材５ａのみならず、この副支持部材５ｂを介してハンドル５１に伝わることとなり、ファイルケース全体の強度が向上する（より重い収納物を運ぶことが可能となる）。
【００４９】
副支持部材５ｂの全体を図２に示す。「副支持部材５ｂ」とは、副開閉部２ｂにおける開口部周囲を強化するために取付ける部材であって、その長さは副開閉部２ｂの幅と略同一もしくはそれより短い板状もしくは棒状の部材である。図２に示す実施例は、副支持部材５ｂを副開閉上面部２３の裏側に取付けたものであり、副開閉上面部２３の裏側の輪郭を点線で、副開閉上面部２３の上側に突出させた部分（副支持上面部５７ｂ）を実線で示したものである。
【００５０】
（A−A断面）
▲１▼ 主支持部材５ａ
図２に示したファイルケースのA−A断面を図９、図１０に示す。図９は開口時である。図１０は閉口時であり、主支持部材５ａの上に副支持部材５ｂが重なった状態を示すものである。
【００５１】
主支持部材５ａは主開閉上面部２３の上に取付ける。そして、開口部側には、階段状の段差を設け、副開放部側に下延長部５６を突出させる。突出させる程度は、ファイルケースの大きさに従って決めればよい。A４サイズのファイルケースであれば、2〜6ｍｍ程度突出させる。この実施例では、この下延長部５６は主開閉上面部２３のほぼ全体に設ける。下延長部５６の先端は、閉口するときに副支持部材５ｂとぶつからないように面取りを行う。下延長部５６は、適宜位置に分割して設ける形態であってもよい。
【００５２】
図に示す符号５３は、前記した裏支持部材５３であって、この裏支持部材５３と主支持部材５ａによって主開閉上面部２３を挟み込み固定する。
【００５３】
▲２▼ 副支持部材５ｂ
副支持部材５ｂは副開閉上面部２３に取付ける。この実施例では副開閉上面部２３の下側にその殆どを取付け、開口部側に副開閉上面部２３を挟み込む形態で副支持上面部５７ｂを設ける。この副支持上面部５７ｂの下側には、前記した下延長部５６と噛み合う凹み５８を設ける。副支持部材５ｂの取り付けも様々な態様で実施可能であり、接着やビスやネジを用いて実施可能である。
【００５４】
なお、副支持部材５ｂを主支持部材５ａが支える観点から、この副支持部材５ｂは副開閉上面部２３の裏側に取付ける形態が望ましい。
【００５５】
（閉口時）
この主支持部材５ａと副支持部材５ｂを用いた開閉部２が閉口した状態を図１０に示す。図に示すように、この発明では前記主支持部材５ａが下側（この実施例では主支持部材５ａのうち下延長部５６が下側）、副支持部材５ｂが上側となる形態で重なりあう。これにより、副開閉部２ｂ（副開閉上面部２３ｂ）側にかかる荷重を副支持部材５ｂを介して主支持部材５ａに伝えることができ、開閉部２全体の強度が向上する。特に、副開閉部２ｂの開口部が歪むことがなくなる。また、この実施例では、閉口時の外観を美しくするために、主開閉上面部２３の上に位置する主支持部材５ａの主支持上面部５７ａと副支持上面部５７ｂとの高さを揃え、面一とする。
（係止部材）
［８］ファイルケースの上端（開閉上面部２３）には、ファイルケースの運搬時に開閉部２が勝手に開かないように係止手段６を設けるのが望ましい。係止手段６としてはクリップ式など従来からある様々な係止具を用いることができる。
【００５６】
ここで、この発明の望ましい実施形態としては「前記したファイルケースであって、以下の構成を有することを特徴とするものである。
・主支持部材５ａのうち主開閉上面部２３ａの上に位置する主支持上面部５７ａの外側に窪みを設け、これを主係止凹部６３ａとする。前記副支持上面部５７ｂの外側に窪みを設け、これを副係止凹部６３ｂとする。
・閉口時に、前記主係止凹部６３ａと前記副係止凹部６３ｂを一体として挟み、開閉部２の開口動作を制御する係止手段６を、いずれか一方の開閉上面部２３に設ける。」
（効果）
この実施形態は、開閉部２の強化の為に用いる主・副支持部材５（５ａ、５ｂ）を開閉の係止に利用するものであり、主支持部材５ａと副支持部材５ｂを一体として挟むことで、従来の係止具よりもより強固に開閉部２を係止することができる。
［９］そして、この発明（係止手段６）の望ましい実施形態としては「前記したファイルケースであって、
・前記係止手段６において、係止を開放する位置を開口位置、係止する位置を閉口位置とし、この開口位置と閉口位置の間でスライド可能な係止具６１を設け、
・閉口位置における前記主支持上面部５７ａと副支持上面部５７ｂが合さった横断面の形状と、この係止具６１の内壁の横断面形状とが略同一であることを特徴とするもの」である。これにより、極めて簡単な構造でありながら、前記した係止手段６を実施することが可能となる。また、開閉部２の開放と係止の切替が容易に行える。
【００５７】
図１は、ファイルケースの上側、主支持部材５ａの上に係止手段６としてスライド式の係止具６１を配置したもの。その位置はハンドル５１の両側に一つずつである。図１１は、係止具６１を取付ける部分の主支持部材５ａと副支持部材５ｂが合さった部分を示すものである（図は係止具６１を取り除いたもの）。
【００５８】
図に示す開口位置では主支持部材５ａの主支持上面部５７ａだけが現れている。よって、係止具６１は主支持部材５ａだけを挟む。一方、閉口位置では、主支持部材５ａの主支持上面部５７ａと副支持部材５ｂの副支持上面部５７ｂとが隣合って現れる。係止具６１はこの双方を挟め、これにより、主と副の開閉部２の開きを制御できる。
【００５９】
（開口位置）
開口位置の断面図を図１２に示す。図に示すように、開口位置で開閉上面部２３の上に現れる部分は主支持上面部５７ａで構成され、副支持部材５ｂは副開閉上面部２３ｂの上に現れない。係止具６１は主支持部材５ａのみによって取付けられている。
【００６０】
主支持上面部５７ａの両側に窪みを設ける。この窪みを主係止凹部６３ａとし、この部分に係止具６１の係止凸部６２を嵌め合わせることで、開閉上面部２３に係止具６１をスライド可能に取付ける。
【００６１】
（閉口位置）
閉口位置の断面図を図１３に示す。閉口位置では、主支持上面部５７ａの外側にのみ前記主係止凹部６３ａを設ける。主支持上面部５７ａの内側は平面とし、後述する副支持上面部５７ｂと面接触させる。副支持部材５ｂは、その開口部側を副開閉上面部２３ｂの上に突出させ、副支持上面部５７ｂを形成する。この副支持上面部５７ｂの外側に窪みを設け、この窪みを副係止凹部６３ｂとする。
【００６２】
この閉口位置における、前記主支持上面部５７ａと副支持上面部５７ｂとが合さった横断面形状を、係止具６１の内壁の横断面形状と略同一とする（係止具６１の係止凸部６２同士の間隔と、前記主係止凹部６３ａと副係止凹部６３ｂとの間隔を略同一とする）。
【００６３】
これにより、スライド式の係止具６１によって主支持部材５ａと副支持部材５ｂを強固に挟むことができ、開閉部２の開きを制御できる。また、この実施例では、前記した開口位置における主支持上面部５７ａの横断面と、この閉口位置における主支持上面部５７ａと副支持上面部５７ｂとが合さった横断面形状を略同一とする。これにより、係止具６１のなめらかなスライド移動を可能にする。また、開口位置において係止具６１がぐらつくことを防止できる。
【００６４】
（その他）
スライド式の係止具６１以外の係止手段６としては、係止凹部６３を設けた主支持部材５ａと副支持部材５ｂをあわせ、その上から、係止具６１を強引にはめ合わせて係止する形態でも実施可能である。
（屈曲部材７）
［１０］この発明にかかるファイルケースに多くの物を収納した状態を図１４に示す。図１４aは開閉部２の閉口時であって、収納部１における収納正面部１２、開閉部２における開閉正面部２１が膨らんだ状態を示している。このように正面部及び開閉正面部２１が膨らんだ状態のままでは開閉部２は開くことができない。膨らんだファイルケースが開口するためには、前記正面部及び開閉正面部２１が図１４bに示す矢印方向に凹む必要がある。
【００６５】
ここで、屈曲部２４が、単なるヒンジ機構であると、前記図１４bの矢印方向の凹みが容易に行われない。そこで、この発明の望ましい実施形態は「前記したファイルケースであって、以下の構成を有することを特徴とするものである。
・収納正面部１２の上端の屈曲部２４に、ファイル幅Ｗ１に対して50〜100％程度のスリット幅Ｗ２であって、かつ、ファイル高Ｈ１に対して0.5〜10％程度のスリット高Ｈ２を有するスリット７１を設ける。
・このスリット７１内に柔軟性に優れた屈曲部材７を配する。
・スリット７１内の下辺４２であるスリット下辺部７２にこの屈曲部材７を取付ける。
・スリット７１内の上辺４０であるスリット上辺部７３にこの屈曲部材７を取付ける。」
「スリット７１」とはファイルケースの屈曲部２４に設けられる孔を意味し、このスリット７１を設けたファイルケースの正面図を図１５に示す。ファイル幅Ｗ１とファイル高Ｈ１とはこの発明に係るファイルケース自身の幅と高さを意味し、スリット幅Ｗ２とスリット高Ｈ２さとは、同図に示す屈曲部２４に設けたスリット７１の幅と高さを意味する。
【００６６】
このように屈曲部２４に一定の大きさのスリット７１を設けることで図１４bの矢印方向の凹みが容易に行われるようになる。その結果、多くの物を納めて膨らんだファイルケースであっても開閉部２の開閉動作が容易に行える。
【００６７】
また、単にスリット７１を設けただけでは、ファイルケースの強度が低下してしまう。例えはこのスリット７１の周囲から亀裂が生ずるなどである。そこで、この実施形態では、このスリット７１の内側に柔軟性に優れた屈曲部材７を設ける。これにより、スリット７１による強度の低下を補うものである。
【００６８】
このスリット７１は、ファイルケース正面の柔軟性を高めるものであるが、あまりに小さいとその効果が得られない。一方、スリット７１があまりに大きいと、ファイルケースの柔軟性（特に正面部）は高まるものの、ファイルケースとしての強度が低下しすぎてしまう。そこで、この実施形態におけるスリット７１の大きさは、ファイル幅Ｗ１に対して50〜100％程度、ファイル高Ｈ１に対して0.5〜10％程度、もしくは、1〜10ｍｍ程度とする。なお、ファイル幅Ｗ１に対して100％のスリット幅Ｗ２とは、屈曲部２４全てをこの屈曲部材で構成することを意味する。
【００６９】
スリット７１に取付ける屈曲部材７の断面を図１６に示す。屈曲部材７は柔軟性に優れたものであり、図に示すものは、スリット上辺７３とスリット下辺７２に取付けるための二つのＵ字部７５を上下に有しその間に中間部７６を有するものである。屈曲部材７は均一な素材で構成されてもよいが、柔軟性と強度を高める観点から、前記Ｕ字部７５は硬質樹脂で構成され、前記中間部７６は軟質樹脂で構成される形態が望ましい。この硬質樹脂としてはＰ．Ｐ．（ポリプロピレン）などを用いることができる。軟質樹脂としてはエラストマーなどを用いることができる。
【００７０】
また「柔軟性に優れた屈曲部材７」としては、樹脂製やゴム製ように素材自体が柔軟性に優れたものの他、これら樹脂やゴムほどに柔軟性が高くないプラスチックのような素材であっても、スリット幅Ｗ２方向に肉厚を薄くした溝（屈曲溝７４）を設けこの屈曲溝７４を基点として屈曲する形態であってもよい。更に、柔軟性に優れる樹脂やゴムからなる屈曲部材７に屈曲溝７４を設ける形態も望ましい。
【００７１】
更に言えば、複数の務歯とこれら務歯を互いに係脱することができるスライダとを布地に形成した開口の周縁に設けてなり、この開口を前記スライダをスライドさせることにより開閉できるようにしたスライドファスナを、「柔軟性に優れた屈曲部材７」の代わりに用いてもよい。この代用例を具体的に説明すると、前記開口がファイル幅方向に沿って延びるようにスライドファスナをスリット７１内に設ける態様である。そして、この場合にあっては、布地の可撓性により上述した効果を同様にファイルケースに奏させることができるうえ、当該開口からも書類等の物品を出し入れすることができるようになる。
【００７２】
この屈曲部材７をスリット上辺部７３、スリット下辺部７２に取付ける形態としては、溶着、接着、嵌合、ビス止めなど様々な形態で実施可能である。望ましい取付け方としては、図１６に示すようにＵ字部７５でスリット上辺７３とスリット下辺７２を挟み、接着もしくは溶着する形態である。
【００７３】
このスリット７１は、前と後のいずれか一方の屈曲部２４にのみ設ける形態で実施可能であるが、より多くの物を収納する観点からは、双方の屈曲部２４に設ける形態が望ましい。また、一つの屈曲部２４に小さなスリットを２〜４つ設ける形態でも実施可能である。
（展開図）
このファイルケースの展開図を図１７に示す。図１７に示すものは一枚の例えばプラスチックシートから打ち抜いたものである。中央に位置する符号１１が収納底面部、その上下側には収納正面部１２、さらにその上と下に開閉正面部２１、開閉上面部２３を有する。前記収納正面部１２のうち、下側の収納正面部１２の両側には収納側面部１３を設ける。一方、上側の収納側面部１３の両側には糊代１４を設ける。前記収納正面部１２と開閉正面部２１の間はトムソンヒンジとし、これにより開閉正面部２１の屈曲を可能とする。この実施例では、収納正面部１２と開閉正面部２１との間のトムソンヒンジの位置にファイル幅に対して90％、ファイル高に対して2％の幅の孔を設け、これをスリット７１とする。このスリット７１には図１６に示す屈曲部材７を取付ける。
【００７４】
図中下側の開閉正面部２１ａの両側には主開閉側面部２２ａを設け、凸部用孔３４を設ける。一方、上側の副開閉正面部２１ｂの両側の開閉側面部２２ｂは大きく張出した形状とし、ファイルケースに組み立てたときに、開閉側面部２２同士が重複するようにする。そして、前記凸部用孔３４と重複する部分には案内溝３２を設ける。案内溝３２の形状は、前記下方線３５に対して45°の傾きであって、その形態は図３に示すとおりである。
【００７５】
図１７に示す展開図において、各構成部分の境界は折り曲げ部であり、ここを折り曲げでファイルケースを組み立てる。凸部用孔３４には主支持部材５ａに設けた凸部３１を外側から貫通させて凸部３１を形成し、この凸部３１を更に案内溝３２内に配し、連結機構３とする（図８参照）。
【００７６】
ところで、本実施形態では具体的に用いる素材を挙げて説明したが、本発明の趣旨を逸脱しない範囲で他の素材を代用できることは言うまでもない。
【図面の簡単な説明】
【図１】ファイルケース全体図（閉口時）
【図２】ファイルケース全体図（開口時）
【図３】連結板使用例
【図４】ファイルケース側面図
【図５】案内溝角の実施形態
【図６】側面補強板の全体図
【図７ａ】開閉機構説明図
【図７ｂ】開閉機構説明図
【図７ｃ】開閉機構説明図
【図８】連結機構、構成説明図
【図９】開閉上面部の断面図（開口時）
【図１０】開閉上面部の断面部（閉口時）
【図１１】係止手段の上面図
【図１２】係止手段の断面部（開放時）
【図１３】係止手段の断面部（係止時）
【図１４】収納時のファイルケース全体図
【図１５】スリットの構成図
【図１６】屈曲部材の断面図
【図１７】ファイルケースの展開図
【図１８】従来のファイルケース
【図１９】従来のファイルケース（開閉図）
【図２０】連結機構、構成説明図その２
【符号の説明】
ａ：凸部を設けた開閉部２側
ｂ：他方の開閉部２側
１収納部
１１収納底面部
１２収納正面部１２
１３収納側面部
１４糊代
２開閉部２（２ａ主開閉部２ｂ副開閉部２）
２１開閉正面部
２２開閉側面部
２３開閉上面部
２４屈曲部
２６凸部距離
２０１前開閉部２
２０２後開閉部２
２０３連結部
２０４連結板
２０７中央連結部
２０９取付距離
３連結機構
３１凸部
３２案内溝
３３固定用溝
３４凸部用孔
３５下方線
３６案内溝範囲
３７溝幅
３８案内溝長さ
３９案内溝角
４０上辺
４１固定化窪み
４２下辺
４５側面補強板
４６補強案内溝
４７屈曲対応位置
４８端
５支持部材（５ａ主支持部材、５ｂ副支持部材）
５１ハンドル
５２主支持側面部
５３裏支持部材
５４リング用溝
５５抜け防止リング
５６下延長部
５７支持上面部（主支持上面部５７ａ、副支持上面部５７ｂ）
５８凹み
６係止手段
６１係止具
６２係止凸部
６３係止凹部（６３ａ主係止凹部、６３ｂ副係止凹部）
７屈曲部材
７１スリット
７２スリット下辺部
７３スリット上辺部
７４屈曲溝
７５Ｕ字部
７６中間部
Ｗ１ファイル幅
Ｗ２スリット幅
Ｈ１ファイル高
Ｈ２スリット高[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a file case used for storing and transporting documents.
[0002]
[Prior art]
A conventional paper or plastic file case is shown in FIGS. FIG. 18 is an overall view, and FIG. 19 is a side view showing how the file case is opened and closed. FIG. 19a shows an open state, and FIG. 19b shows a closed state. As shown in FIG. 19a, in the conventional file case, when the stored item is taken out, the lid 101 has to be opened to the extent indicated by the two-dot chain line. Further, as shown in FIG. 19b, once the lid portion 101 is opened, a force acts in the direction indicated by the arrow (the closing direction) due to the elasticity of the coupling portion 103 between the lid portion and the storage portion 102. For this reason, the lid portion 101 must be held during the taking in / out of the stored item, and it is not easy to put in / out the stored item.
[0003]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to make it easy to put in and take out the stored items in a file case. In addition, it aims at appropriate reinforcement in consideration of the time of carrying the file case.
[0004]
[Means and effects for solving the problems and embodiments thereof]
[1] Therefore, the present invention “a substantially rectangular parallelepiped file case,
The file case includes a box-shaped storage portion 1 having a storage bottom surface portion 11, front and rear storage front surface portions 12 and left and right storage side surface portions 13, and an open top.
It consists of two opening and closing parts 2 before and after being attached to the upper ends of the front and rear storage front parts 12 in the storage part 1 in a bendable manner,
The open / close side surfaces 22 that are the side surfaces of the two open / close portions 2 are connected to each other so that the other open / close portion 2 also opens / closes in conjunction with the open / close operation of the open / close portion 2 ”. .
[0005]
An overall view of the file case according to the present invention is shown in FIG. 1 and FIG. As shown in FIG. 1, the file case at the time of closing is a substantially rectangular parallelepiped as a whole. As shown in FIG. 2, in the file case of the present invention, the upper two opening / closing parts 2 open (swing) forward and backward, respectively, so that an object can be taken in and out of the file case.
[0006]
The storage portion 1 has a storage bottom surface portion 11 positioned at the bottom, a front and rear storage front portions 12 at substantially right angles around the storage bottom surface portion 11, and storage side surface portions 13 at both ends (right and left) of the storage bottom surface portion 11. And the top is open.
[0007]
The opening / closing part 2 is an upper part of the file case, and is an opening / closing front part 21 positioned at the upper end of the storage front part 12 of the storage part 1, and an opening / closing side face positioned substantially perpendicular to the periphery of the opening / closing front part 21. It has a portion 22 and an open / close upper surface portion 23. The storage front part 12 and the opening / closing front part 21 can be bent, and thereby the opening / closing part 2 can be opened and closed. A portion where the storage portion 1 and the opening / closing portion 2 are attached so as to be bendable is denoted by reference numeral 24 as a bent portion.
[0008]
The shape of the left and right opening / closing portions 2 is such that both the opening / closing upper surface portion 23 and the opening / closing side surface portion 22 are flush with each other so that the entire file case becomes a substantially rectangular parallelepiped when closed.
[0009]
In the present invention, a handle 51 is provided on the open / close upper surface portion 23 for the convenience of carrying the file case. The handle 51 may be provided on the opening / closing upper surface portion 23 of one opening / closing portion 2 or may be provided on both opening / closing upper surface portions 23.
[0010]
The opening / closing part 2 is characterized in that the opening / closing side parts 22, which are side faces of both opening / closing parts 2, are connected to each other so as to open / close the other opening / closing part 2 in conjunction with the opening / closing operation of the one opening / closing part 2. To do.
[0011]
Here, “in conjunction with the opening / closing operation of one opening / closing portion 2 and the other opening / closing” means that the user holds the handle 51 attached to the opening / closing portion 2a shown in FIG. When the opening 2a is opened, the other opening / closing part 2b is opened to the front in accordance with the opening of the opening / closing part 2a. A specific configuration for connecting the opening / closing part 2a and the opening / closing part 2b will be described later.
[0012]
(effect)
As described above, in the present invention, the two opening / closing parts 2 are attached to the upper end of the storage front part 12 of the storage part 1 in a bendable state. When the two opening / closing parts 2 are opened, the entire upper part of the storage part 1 is opened. As a result, the stored items can be taken in and out from directly above the storage unit 1, and the operation of storage and removal is facilitated. In the present invention, the other opening / closing part 2 is also opened / closed in conjunction with the movement of one opening / closing part 2. Thereby, the user can easily open and close the opening / closing part 2. This is particularly noticeable in the embodiment in which the handle 51 is attached to the open / close upper surface 23. Further, the embodiment in which the handles 51 are provided on both the opening / closing parts 2 has an advantage that the opening / closing operation can be performed quickly and easily because one of the opening / closing parts 2 is opened / closed in accordance with the movement.
[0013]
In the overall view shown in FIGS. 1 and 2, as a more preferable embodiment, as a member for reinforcing the file case, the main support member 5 a and the sub support member 5 b are provided around the opening on the side where the opening and closing portions 2 are in contact with each other. Is used. Further, a sliding type locking means 6 (the locking tool 61) and a bending member 7 for facilitating opening and closing are used. Reference numeral 95 shown in the figure is a finger hook for facilitating opening and closing.
[0014]
The “opening portion” refers to an end portion of the opening / closing portion 2 on the side (center side) where the two opening / closing portions 2 are in contact, and is specifically formed by the end portions of the opening / closing upper surface portion and the left and right opening / closing side portions. The part that says. Since it is difficult to specify the portion to be the opening with a code, the code is omitted.
(Connecting plate)
[2] In the present invention, the open / close side portions 22 are connected to each other so that the other open / close portion 2 is also opened / closed in conjunction with the open / close operation of one open / close portion 2. The desirable form is “a file case of a substantially rectangular parallelepiped,
The file case includes a box-shaped storage portion 1 having a storage bottom surface portion 11, front and rear storage front surface portions 12 and left and right storage side surface portions 13, and an open top.
It consists of two opening and closing parts 2 before and after being attached to the upper ends of the front and rear storage front parts 12 in the storage part 1 in a bendable manner,
A side surface of the opening / closing portion 2 is defined as an opening / closing side surface portion 22, and a rotatable connecting plate 204 is attached below the two opening / closing side surface portions 22 on the same side surface,
The mounting position of the connecting plate 204 is a connecting portion 203, and the connecting plates 204 are rotatably mounted at positions appropriately separated from the connecting portion 203 according to the degree of opening and closing of the opening / closing portion 2. "
[0015]
This embodiment is shown in FIG. FIG. 3 shows the side of the file case. Reference numeral 201 denotes a front opening / closing part in the opening / closing part 2, reference numeral 202 denotes a rear opening / closing part in the opening / closing part 2, and reference numeral 13 denotes a storage side surface part 13 of the storage part 1.
[0016]
Reference numeral 203 denotes a connecting part, where the connecting part of the front opening / closing part 201 is indicated by reference numeral 203c and the connecting part of the rear opening / closing part 202 is indicated by reference numeral 203d. Reference numeral 204 denotes a connecting plate rotatably attached to the connecting portion 203. Reference numeral 204c denotes a connecting plate attached to the connecting portion 203c, and 204d denotes a connecting plate attached to the connecting portion 203d. The two connecting plates 204 are rotatably attached at positions appropriately separated from the connecting portion 203 described above. A position where the connecting plates 204 are attached to each other is indicated by a reference numeral 207 as a central connecting portion. The distance from the central connecting portion 207 to the connecting portion 203 (attachment distance 209) is determined according to the degree of opening / closing of the opening / closing portion 2.
[0017]
The mode in which the opening / closing part 2 opens and closes is shown in FIGS. FIG. 3a shows a closed state, FIG. 3b shows a state of opening, and FIG. The opening / closing part 2 swings around a bent part 24 at the upper end of the storage part 1. As shown in FIG. 3c, the maximum open state is when the two connecting plates (204c and 204d) are linear. When the attachment distance 209 from the connecting portion 203 to the central connecting portion 207 is large, the maximum opening of the opening / closing portion 2 is large. On the other hand, when the attachment distance 209 is small, the maximum opening of the opening / closing portion 2 is small.
[0018]
An example of a structure in which the opening / closing part 2 and the connecting plate 204 and the connecting plates 204 are rotatably mounted can be implemented by a structure that is screwed using a suitable hole and a screw having the same diameter or slightly smaller diameter than the hole. It is.
[0019]
In this embodiment, the two connecting portions 203 provided in the front and rear opening / closing portions (201, 202) do not have to be at the same height, and may have a height difference in the vertical direction. As the material of the connecting plate 204, a thin plate is desirable, and it is possible to use a material having high elasticity in addition to a material having no elasticity.
(Guide groove 32)
[3] Further, a desirable embodiment of the present invention is “a substantially rectangular parallelepiped file case, characterized by having the following configuration.
The file case includes a box-shaped storage portion 1 having a storage bottom surface portion 11, front and rear storage front surface portions 12 and left and right storage side surface portions 13, and an open top.
The storage unit 1 includes two front and rear opening / closing units 2 which are bent and attached to the upper ends of the front and rear storage front units 12.
The side surface of the opening / closing part 2 is used as the opening / closing side part 22 so that a part of the opening / closing side part 22 always overlaps from when the opening / closing part 2 is closed to when it is opened.
One open / close side surface 22 is provided with a convex portion 31 in the overlapping range, the open / close portion 2 provided with the convex portion 31 is a main open / close portion 2a, and the open / close side surface portion 22 is a main open / close side surface portion 22a. The opening / closing part 2 is a sub opening / closing part 2b, and its opening / closing side part 22 is a sub opening / closing side part 22b.
The sub-opening / closing side surface portion 22b is provided with a guide groove 32 having a width substantially the same as the diameter of the convex portion 31 at a position overlapping with the convex portion 31 at the time of closing. The opening / closing portion 2a extends into the guide groove range 36 up to the bent portion 24a.
The length for extending the guide groove 32 is set to an appropriate distance according to the degree of opening / closing of the opening / closing portion 2.
The convex portion 31 is arranged inside the guide groove 32 so that it can move in the guide groove 32. "
(effect)
If it is a form which provides this guide groove 32, it can be opened and closed by connecting two opening-and-closing parts 2, although it is a simple structure. In particular, since the side structure is thin, the appearance and the interior are beautiful.
[0020]
(Side)
An embodiment of the present invention is shown in FIG. FIG. 4 is a side view when the file case is closed in this embodiment. A main opening / closing side surface portion 22a is disposed on the left side of the storage side surface portion 13 positioned on the lower side, and a sub opening / closing side surface portion 22b is disposed on the right side. In this embodiment, a part of the opening / closing side surface portion 22 is always overlapped from when the opening / closing portion 2 is closed to when it is opened. In the figure, the main opening / closing side surface portion 22a is the front side, and the outline thereof is represented by a solid line. The auxiliary opening / closing side surface portion 22b is on the back side, and the outline of a portion overlapping the main opening / closing side surface portion 22a and the storage side surface portion 13 is indicated by a dotted line. In the sub opening / closing side surface portion 22b, the portion indicated by a dotted line is an overlapping portion.
[0021]
(Convex 31: guide groove 32)
In the main opening / closing side surface portion 22a shown in the figure, this overlapping portion is provided with a convex portion 31 that is convex on the back side, and this is denoted by reference numeral 31. The auxiliary opening / closing side surface portion 22b is provided with a guide groove at a position overlapping with the convex portion 31 at the time of closing, which is indicated by reference numeral 32. Since this guide groove 32 is located inside the main opening / closing side surface portion 22a and the storage side surface portion 13, it is indicated by a dotted line.
[0022]
The “projection 31” is formed by penetrating the side surface using screws or screws from the outside or inside of the file case, or by increasing the thickness of only the portion that becomes the projection 31 of the main opening / closing side surface 22a. It can be formed in various forms such as forming the portion 31 or providing the convex portion 31 on the main support member 5a described later.
[0023]
The “guide groove 32” is the one in which the convex portion 31 is arranged in the groove, and the convex portion 31 moves in the guide groove 32 in accordance with the opening / closing operation of the opening / closing portion 2. . In this embodiment, in conjunction with the opening / closing operation of the main opening / closing portion 2a, the convex portion 31 is moved in the guide groove 32, and the sub opening / closing portion 2b is also opened / closed.
[0024]
(Guide groove range 36)
The guide groove 32 extends into the guide groove range 36 from the position of the convex portion 31 when closed. The “guide groove range 36” refers to a range from the position of the convex portion 31 shown in FIG. 4 to the bent portion 24a of the main opening / closing portion 2a with reference to a downward line 35 that is a perpendicular line downward. In the embodiment in which the convex portion 31 and the bent portion 24a shown in FIG. 5 have the same height, the range is 0 to 90 ° with respect to the lower line 35. 0 ° is the direction of the downward line 35 drawn from the convex portion 31 directly below. 90 ° is a horizontal line from the position of the convex portion 31 toward the bent portion 24a when the mouth is closed.
[0025]
The groove width 37 of the guide groove 32 is substantially the same as the diameter of the protrusion 31 so that the protrusion 31 can move in the guide groove 32. In addition, as long as the convex part 31 can move smoothly, the groove width 37 may be slightly larger than the diameter of the convex part 31, and in this case, the width is approximately the same.
[0026]
(Shape of guide groove 32)
The position of the opening / closing part 2 when the opening / closing part 2 is fully opened, the extent to which the auxiliary opening / closing part 2b opens / closes with respect to the opening / closing operation of the main opening / closing part 2a, and the like are based on the angle of the guide groove 32 (based on the lower line 35). Guide groove angle 39) and the length of the guide groove 32 (guide groove length 38). As an example, the guide groove length 38 is large when it is large, and it is small when it is small. When the guide groove angle 39 is 45 ° in an A4 size file case, the guide groove length 38 is preferably about 15 to 30 mm. Further, when the guide groove angle 39 is small, it opens widely, and when the angle is large, it opens small.
[0027]
The shape of the guide groove 32 is substantially a straight line, but it is not necessarily strictly a straight line, and may be a slightly curved shape or a wave shape as shown in FIG. It is the substantially linear guide groove 32 in this invention including these. From the viewpoint of smoothly moving the convex portion 31 in the guide groove 32, the guide groove 32 projects the side (upper side 40) side of the guide groove 32 with which the convex portion 31 abuts when the opening / closing portion 2 is opened. A curved shape is desirable.
[0028]
Moreover, you may provide the hollow (immobilization hollow 41) where the convex part 31 fits shallowly in the upper side 40 of the guide groove 32 so that the opened opening-closing part 2 may not be closed naturally. In the guide groove 32 of FIG. 4, the fixing depression 41 is provided at a position where the convex portion 31 is located at the maximum opening. When the convex portion 31 is fitted in the fixing recess 41, the convex portion 31 is restricted from moving in the guide groove 32, and thus the opening / closing portion 2 can be prevented from being naturally closed.
[0029]
(Direction of guide groove 32)
The guide groove 32 extends in any direction within the guide groove range 36 with reference to the lower line 35 shown in FIG. Here, what changed the extending angle is shown in FIG. FIG. 5 shows the sub opening / closing side surface portion 22b provided with the guide groove 32 by a solid line, and the main opening / closing side surface portion 22a and the storage side surface portion 13 by a dotted line. The guide groove 32 extended in the 0 ° direction is shown in FIG. 5a, the guide groove 32 extended in the 45 ° direction is shown in FIG. 5b, and the guide groove 32 extended in the 90 ° direction is shown in FIG. The present invention can be implemented in a form in which the guide groove 32 is extended in the range of 0 to 90 ° shown in the drawing.
[0030]
When the guide groove angle 39 is smaller than 0 ° (minus angle) or larger than 90 °, the convex portion 31 cannot move smoothly in the guide groove 32 and the opening / closing portion 2 can be opened sufficiently. It is not desirable because it cannot be done.
[0031]
The angle at which the guide groove 32 is extended is determined in consideration of how much the sub-opening / closing portion 2b provided with the guide groove 32 is opened / closed in accordance with the degree of opening / closing of the main opening / closing portion 2a provided with the convex portion 31. The guide groove angle 39 is preferably in the range of 30 to 60 ° from the viewpoint of opening the sub opening / closing portion 2b to the same extent as the main opening / closing portion 2a.
[0032]
There is no particular limitation on the shape of the entire file case. As shown in FIG. 1, in addition to a horizontally long shape, a vertically long shape may be used. Moreover, there is no restriction | limiting in particular also in the ratio of the height of the accommodating part 1 and the opening / closing part 2. FIG. In addition to the ratio of about 1: 1, the embodiment can be implemented in a form in which the storage unit 1 is large, a form in which the opening / closing unit 2 is large, or the like. Furthermore, both the front and rear opening / closing sections 2 need not be the same size.
(Side reinforcement plate 45: reinforcement guide groove 46)
[4] In the above-described invention, the side surface of the file case is constituted by the storage side surface portion 13 and the two opening / closing side surface portions 22 (the main opening / closing side surface portion 22a and the sub opening / closing side surface portion 22b). Here, a preferred embodiment of the present invention is “the file case described above, which has the following configuration.
A side reinforcing plate 45 is provided in the movement range of the convex portion 31 that moves corresponding to the opening / closing operation of the opening / closing portion 2 and substantially the entire storage side surface portion 13.
A distance from the bent portion 24a to the convex portion 31 is a convex portion distance 26, an arc shape with the convex portion distance 26 as a radius around a bending corresponding position 47 corresponding to the bent portion 24a, and A reinforcing guide groove 46 having substantially the same width as the convex portion 31 is provided in the side reinforcing plate 45 in the movement range of the convex portion 31.
The convex portion 31 is disposed in the reinforcing guide groove 46 and is movable in the reinforcing guide groove 46. "
(Effect) In this embodiment, the side reinforcing plate 45 is provided on the side surface of the file case to reinforce the side surface of the file case. Further, the side reinforcing plate 45 is provided with a reinforcing guide groove 46, and the convex portion 31 is arranged in the reinforcing guide groove 46 so as to be movable, so that the guide groove 32 which is one of the points of the present invention can be obtained. The reinforcement of the portion composed of the convex portion 31 (the coupling mechanism 3 portion) is also intended.
[0033]
(Side reinforcing plate 45)
The side reinforcing plate 45 is a plate-like member attached to the side surface of the file case, and an overall view thereof is shown in FIG. The side reinforcing plate 45 is a plate attached to the inside of the side surface of the file case, and its lower side has substantially the same shape as the storage side surface portion 13. Specifically, the width of the reinforcing side plate is substantially the same as the inner width of the storage side portion 13. And the upper side is a part which protrudes upwards from the storage side surface part 13, and extends to the range which overlaps with the range which the said convex part 31 moves. The side reinforcing plate 45 shown in the figure is attached to the inside of the side face shown in FIG. 4, and the reference numeral 47 in the figure is a bending corresponding position 47 corresponding to the bent portion 24a.
[0034]
The side reinforcing plate 45 is attached to substantially the entire storage side surface portion 13 for the purpose of reinforcing the side surface of the file case. As long as this purpose is achieved, the shape can be changed as appropriate, and it is not necessary to be strictly attached to the entire storage side surface portion 13.
(Control of opening)
A reinforcing guide groove 46 is provided above the side reinforcing plate 45. The shape of the reinforcing guide groove 46 is determined in accordance with the movement locus during the opening / closing operation of the convex portion 31 provided in the main opening / closing portion 2a. Specifically, the convex portion 31 swings on an arc centered on the bent portion 24a when the main opening / closing portion 2a is opened / closed. Therefore, when the convex portion distance 26 is from the bent portion 24a to the convex portion 31 shown in FIG. 4, the reinforcing guide groove 46 is a groove on an arc having the convex portion distance 26 as a radius around the bending corresponding position 47. It is. The width of the groove (the width of the reinforcing guide groove 46) is substantially the same as or slightly larger than the convex portion 31, similar to the guide groove 32.
[0035]
The degree of opening of the opening / closing part 2 can be controlled by the length of the guide groove 32 provided in the sub opening / closing side part 22b. In that case, the convex part 31 hits the edge of the guide groove 32, restrict | limits the movement of the convex part 31, and suppresses the further opening of the opening-and-closing part 2. FIG.
[0036]
In the embodiment using the side reinforcing plate 45, the degree of opening can be controlled by the reinforcing guide groove 46. In this case, the movement of the convex portion 31 is controlled not by the end of the guide groove 32 but by the end 48 of the reinforcing guide groove 46. When the degree of opening is controlled by the reinforcing guide groove 46, it is set so that the end 48 of the reinforcing guide groove 46 is positioned at the position of the convex portion 31 at the time of the maximum opening.
(Opening / closing mode)
A state in which the auxiliary opening / closing part 2b is opened and closed in conjunction with the movement of the main opening / closing part 2a by the convex part 31 and the guide groove 32 will be described with reference to FIGS. Further, the auxiliary guide groove 46 is also shown, and the manner in which the convex portion 31 moves along the auxiliary guide groove 46 will be described.
[0037]
FIGS. 7a to 7c show how the main opening / closing portion 2a and the auxiliary opening / closing portion 2b are opened and closed, with the convex portion 31 moving in the guide groove 32 as the center. FIG. 7a shows the closed state (position 1). b is in the middle of opening (position 2), and c in the figure is at the time of opening (position 3). In FIG. 7a, the convex portion 31 when closed is indicated by a solid line, the guide groove 32 is indicated by a chain line, and the auxiliary guide groove 46 is indicated by a two-dot chain line. Furthermore, the convex part 31 which moves is shown by the dotted line. In FIGS. 7b and 7c, the convex portion 31 moving in the same manner is indicated by a dotted line. The auxiliary guide groove 46 provided in the auxiliary side plate 45 is indicated by a two-dot chain line in all drawings. In this figure, a handle 51 described later is attached to the main opening / closing upper surface portion 23a of the main opening / closing portion 2a.
(Position 1) The convex part 31 is located in the upper right in the guide groove 32 (FIG. 7a).
(Position 2) Next, when the main opening / closing part 2a is slightly opened (opened to the left), the convex part 31 moves concentrically around the bent part 24a of the main opening / closing part 2a. By the movement of the convex portion 31, the upper side 40 of the guide groove 32 is pushed up by the convex portion 31. Thereby, the sub opening / closing part 2b bends about the sub bending part 24b and opens to the right. At that time, the convex portion 31 moves in the guide groove 32 and moves to the vicinity of the center of the guide groove 32 (FIG. 7b).
(Position 3) Further, when the main opening / closing part 2a is opened, the convex part 31 further pushes up the upper side 40 of the guide groove 32 and opens the sub opening / closing part 2b to the right. The convex portion 31 moves to the left end in the guide groove 32 (FIG. 7c). And the convex part 31 fits into the said fixed groove | channel 41 provided in the upper side 40 of the guide groove 32, and the state which the opening-and-closing part 2 opened is maintained.
(When closed) When the opened opening / closing part 2 is closed, it is the reverse of the movement described above. When the main opening / closing part 2a is closed, the convex part 31 pushes down the lower side 42 of the guide groove 32 and interlocks with the main opening / closing part 2a. The sub opening / closing part 2b is closed.
(Support member + handle 51)
[5] In carrying out the present invention, it is desirable that the handle 51 is provided above the file case in consideration of carrying. However, in the embodiment using the handle 51, the weight of the stored item is concentrated on the attachment portion of the handle 51. Therefore, in order to counter the weight of the stored item, it is necessary to disperse the excessive weight concentrated on the attachment portion of the handle 51. In the embodiment using the handle 51, the weight of the stored items stored in the storage unit 1 is supported by the bent portion 24 of the opening / closing unit 2 provided with the handle 51.
[0038]
Therefore, a preferred embodiment of the present invention is “the file case described above, which has the following configuration.
The structure composed of the guide groove 32 and the convex portion 31 is the connection mechanism 3, and the connection mechanism 3 is provided on both the left and right open / close side portions 22.
A portion of the opening / closing portion 2 on the side where the opening / closing portions 2 are in contact with each other is defined as an opening, the inner opening / closing portion of the main opening / closing portion 2a has an inner shape substantially the same shape as the opening, and substantially The main support member 5a, which is shaped like a letter and is superior in strength to the case material that is the main material of the file case, is provided from one connection mechanism 3 to the other connection mechanism 3.
In the main support member 5 a, a portion provided on the opening / closing side surface portion 22 is a main support side surface portion 52, and the convex portion 31 in the coupling mechanism 3 is attached to the main support side surface portion 52.
A handle 51 that facilitates carrying the file case is attached to the main support member 5a. "
(effect)
As described above, in the preferred embodiment of the present invention, the main support member 5a is provided around the opening to reinforce the opening / closing part 2, and the handle 51 is attached to the main support member 5a. Thereby, the handle 51 can be attached more firmly. Moreover, it can prevent that the opening-and-closing upper surface part 23 which attached the handle | steering_wheel 51 breaks. Further, in this embodiment, the main support member 5a is arranged from one connection mechanism 3 to the other connection mechanism 3, and the convex portion 31 is attached to the main support member 5a. As a result, the weight of the contents is directly transmitted not only to the bent portion 24 but also to the handle 51 through the main support member 5a. This makes it possible to disperse the weight of the stored item and to carry a heavier stored item.
[0039]
Here, the “case material” is a material constituting the main body of the file case, specifically, plastic or reinforced paper. As the “main support member 5a having higher strength than the case material”, it is possible to use metal, a hardened rubber material, ABS, plastic having a thickness larger than that of the file case body, or the like.
(Integration of main support member 5a and convex portion 31)
[6] The convex portion 31 of the coupling mechanism 3 according to the present invention can be implemented in a form formed using screws or screws as described above (a form formed using screws 93 is shown in FIG. 20). Here, a preferred embodiment using the main support member 5a described above is “the file case described above,
The convex portion 31 and the main support side surface portion 52 are integrally formed;
The convex portion 31 passes through the guide groove 32 provided in the main opening / closing side surface portion 22a and the sub opening / closing side surface portion 22b,
And a means for preventing the protrusion 31 from coming off from the inside of the file case ”.
[0040]
(effect)
Since a large load is applied to the convex portion 31, strength is required. Further, from the viewpoint of improving productivity, it is required to facilitate the assembly of the coupling mechanism 3 including the convex portion 31 and the guide groove 32. Therefore, in this embodiment, the convex portion 31 is integrally formed as a part of the main support side surface portion 52, and the convex portion 31 passes through the main opening / closing side surface portion 22 a and the guide groove 32. Thereby, the convex part 31 excellent in intensity | strength can be manufactured cheaply. In the assembling process of the file case, by attaching the main support member 5a to the main opening / closing part 2a, the projecting part 31 is completed at the same time, so that the assembling process is shortened.
[0041]
Further, in the case of using the above-described side reinforcing plate 45 on the side surface of the file case, a desirable embodiment thereof is “the above-described file case, in which the convex portion 31 includes the main opening / closing side surface portion 22 a and the guide groove 32. And means for preventing the protrusion 31 from coming off from the inside of the file case ”.
[0042]
(Main support member 5a)
Examples of the above [5] and [6] are shown in FIGS. In this embodiment, as shown in FIG. 2, the coupling mechanism 3 is provided on both the left and right side surfaces. The main support member 5 a is a substantially U-shaped member that covers the outer periphery of the opening of the main opening / closing part 2 a from one connection mechanism 3 to the other connection mechanism 3. The main support member 5a is attached to the outside of the opening of the main opening / closing part 2a, and the inner shape thereof is substantially the same as the outer shape of the main opening / closing part 2a.
[0043]
(How to install the main support member 5a)
There is no restriction | limiting in particular in the attachment of the main support member 5a, You may attach using adhesion | attachment, welding, or a screw | thread. In this embodiment, from the viewpoint of not only adhering but also mounting more firmly, the main opening / closing upper surface portion 23 is sandwiched between the main support member 5a and the back support member 53 using a back support member 53 described later, and these are supported. Screw it so that it penetrates together. In this embodiment, the case material has a thickness of 1.0 mm. P. (Polypropylene) is used. On the other hand, ABS is used for the main support member 5a as a material having excellent strength.
[0044]
FIG. 8 shows a disassembled structure of the main opening / closing part 2a and the main support member 5a. The figure shows the main support member 5a on the outer side, the main opening / closing part 2a, the auxiliary opening / closing part 2b on the inner side (left side), the side reinforcing plate 45, and the removal prevention ring 55.
[0045]
As shown in the figure, a convex portion 31 is integrally formed inside the main support side surface portion 52. A ring groove 54 is provided on the outer periphery of the convex portion 31 to prevent it from coming off.
[0046]
The convex portion 31 passes through a convex hole 34 provided in the main opening / closing side surface portion 22a and a guide groove 32 provided in the sub opening / closing side surface portion 22b. Furthermore, since this embodiment uses the side reinforcing plate 45, the reinforcing guide groove 46 also penetrates.
[0047]
As the means for preventing the protrusion 31 from passing through, the protrusion 31 that is penetrated is fitted with a prevention ring 55 having an inner diameter smaller than the diameter of the protrusion 31. The drop prevention ring 55 is fixed by a ring groove 54 provided in the convex portion 31.
[0048]
In addition, the structure which forms the hole 91 for screws in the main support side part 52, and forms the convex part 31 with the screw 93 through this washer 92 from this inside is shown in FIG.
(Sub-support member 5b)
[7] Further, a preferred embodiment of the present invention is “the file case described above, characterized by having the following configuration.
The upper surface of the sub-opening / closing portion 2b is a sub-opening / closing upper surface portion 23, and the sub-opening / opening upper surface portion 23 of the sub-opening / closing portion 23b is provided with a sub-support member 5b that is superior in strength to the case material that is the main material of the file case. Provide.
When the opening / closing part 2 is closed, the main support member 5a overlaps with the lower support member 5b on the bottom. "
(effect)
Thus, not only the main support member 5a is provided in the main opening / closing portion 2a, but also the sub-support member 5b is provided in the sub-opening / closing portion 2b, and the sub-support member 5b is placed on the upper side of the main support member 5a when closing. By arranging, the load concerning this sub opening and closing part 2b is transmitted to the handle 51 via the main support member 5a. As a result, the load of the stored item is transmitted not only to the bent portion 24a and the main support member 5a described above but also to the handle 51 through the sub-support member 5b, thereby improving the strength of the entire file case (heavier stored items). Can be carried).
[0049]
The whole sub-support member 5b is shown in FIG. The “sub-supporting member 5b” is a member attached to reinforce the periphery of the opening in the sub-opening / closing portion 2b, and its length is substantially the same as or shorter than the width of the sub-opening / closing portion 2b. It is a member. In the embodiment shown in FIG. 2, the sub-supporting member 5b is attached to the back side of the sub-opening / closing upper surface part 23. The part (sub-supporting upper surface part 57b) is indicated by a solid line.
[0050]
(A-A cross section)
(1) Main support member 5a
9 and 10 are cross-sectional views taken along line AA of the file case shown in FIG. FIG. 9 shows the opened state. FIG. 10 shows a state in which the auxiliary support member 5b overlaps the main support member 5a when the mouth is closed.
[0051]
The main support member 5 a is attached on the main opening / closing upper surface portion 23. Then, a stepped step is provided on the opening side, and the lower extension 56 is projected on the sub-opening side. The degree of protrusion may be determined according to the size of the file case. If it is an A4 size file case, it will protrude about 2 to 6 mm. In this embodiment, the lower extension 56 is provided on almost the entire main opening / closing upper surface 23. The tip of the lower extension 56 is chamfered so as not to collide with the auxiliary support member 5b when closing. The lower extension 56 may be divided into appropriate positions.
[0052]
Reference numeral 53 shown in the figure is the above-described back support member 53, and the main opening / closing upper surface portion 23 is sandwiched and fixed by the back support member 53 and the main support member 5a.
[0053]
(2) Sub support member 5b
The auxiliary support member 5b is attached to the auxiliary opening / closing upper surface portion 23. In this embodiment, most of the auxiliary opening / closing upper surface portion 23 is attached to the lower side, and the auxiliary opening / closing upper surface portion 57b is provided on the opening side so as to sandwich the auxiliary opening / closing upper surface portion 23. A recess 58 that meshes with the above-described lower extension portion 56 is provided below the sub-support upper surface portion 57b. The attachment of the sub-support member 5b can be performed in various modes, and can be performed using adhesion, screws, or screws.
[0054]
From the viewpoint of supporting the sub support member 5b by the main support member 5a, it is desirable that the sub support member 5b be attached to the back side of the sub opening / closing upper surface portion 23.
[0055]
(When closed)
FIG. 10 shows a state where the opening / closing part 2 using the main support member 5a and the sub support member 5b is closed. As shown in the figure, in the present invention, the main support member 5a overlaps with the lower side (in this embodiment, the lower extension 56 is lower side of the main support member 5a) and the sub-support member 5b is upper side. Thereby, the load applied to the sub opening / closing portion 2b (sub opening / closing upper surface portion 23b) side can be transmitted to the main support member 5a via the sub supporting member 5b, and the strength of the entire opening / closing portion 2 is improved. In particular, the opening of the sub opening / closing part 2b is not distorted. Further, in this embodiment, in order to beautify the appearance at the time of closing, the heights of the main support upper surface portion 57a and the sub support upper surface portion 57b of the main support member 5a located on the main opening / closing upper surface portion 23 are aligned, Be flush.
(Locking member)
[8] It is desirable to provide the locking means 6 at the upper end (opening / closing upper surface portion 23) of the file case so that the opening / closing portion 2 does not open without permission when the file case is transported. As the locking means 6, various conventional locking tools such as a clip type can be used.
[0056]
Here, as a preferred embodiment of the present invention, “the file case described above is characterized by having the following configuration.
A recess is provided on the outer side of the main support upper surface portion 57a located on the main opening / closing upper surface portion 23a of the main support member 5a, and this is referred to as a main locking recess 63a. A recess is provided on the outer side of the auxiliary support upper surface portion 57b, and this is used as an auxiliary locking recess 63b.
A locking means 6 for controlling the opening operation of the opening / closing portion 2 is provided on any one of the opening / closing upper surface portions 23 so as to sandwich the main locking recess 63a and the sub-locking recess 63b together when closing. "
(effect)
In this embodiment, the main / sub support members 5 (5a, 5b) used for strengthening the opening / closing portion 2 are used for locking the opening / closing, and the main support member 5a and the sub support member 5b are sandwiched together. Thereby, the opening-and-closing part 2 can be latched more firmly than the conventional latching tool.
[9] And, as a preferred embodiment of the present invention (locking means 6), “the file case described above,
In the locking means 6, the position where the locking is released is the opening position, the locking position is the closing position, and a locking tool 61 is provided that can slide between the opening position and the closing position,
“The cross-sectional shape of the main support upper surface portion 57a and the sub-support upper surface portion 57b in the closed position is substantially the same as the cross-sectional shape of the inner wall of the locking device 61”. is there. As a result, the locking means 6 described above can be implemented with an extremely simple structure. Moreover, opening and closing of the opening / closing part 2 can be easily switched.
[0057]
FIG. 1 shows a slide type locking device 61 arranged as locking means 6 on the upper side of the file case and on the main support member 5a. The position is one on each side of the handle 51. FIG. 11 shows a portion where the main support member 5a and the sub-support member 5b are combined in the portion where the locking device 61 is attached (the drawing is obtained by removing the locking device 61).
[0058]
Only the main support upper surface portion 57a of the main support member 5a appears at the opening position shown in the figure. Therefore, the locking tool 61 sandwiches only the main support member 5a. On the other hand, in the closed position, the main support upper surface portion 57a of the main support member 5a and the sub support upper surface portion 57b of the sub support member 5b appear next to each other. The locking tool 61 sandwiches both of them so that the opening of the main and sub opening / closing parts 2 can be controlled.
[0059]
(Opening position)
A sectional view of the opening position is shown in FIG. As shown in the figure, the portion appearing on the opening / closing upper surface portion 23 at the opening position is constituted by the main supporting upper surface portion 57a, and the sub-supporting member 5b does not appear on the auxiliary opening / closing upper surface portion 23b. The locking tool 61 is attached only by the main support member 5a.
[0060]
Recesses are provided on both sides of the main support upper surface portion 57a. This recess is used as a main locking recess 63a, and the locking projection 62 of the locking tool 61 is fitted to this portion, so that the locking tool 61 is slidably attached to the open / close upper surface 23.
[0061]
(Closed position)
A sectional view of the closed position is shown in FIG. In the closed position, the main locking recess 63a is provided only outside the main support upper surface 57a. The inside of the main support upper surface portion 57a is a flat surface and is brought into surface contact with a sub support upper surface portion 57b described later. The sub-support member 5b has its opening side projected on the sub-opening / closing upper surface portion 23b to form a sub-support upper surface portion 57b. A recess is provided on the outer side of the sub-support upper surface portion 57b, and this recess is referred to as a sub-locking recess 63b.
[0062]
The cross-sectional shape of the main support upper surface portion 57a and the sub-support upper surface portion 57b at the closed position is substantially the same as the cross-sectional shape of the inner wall of the locking device 61 (the locking protrusion of the locking device 61). The interval between the portions 62 and the interval between the main locking recess 63a and the sub locking recess 63b are substantially the same).
[0063]
Thereby, the main support member 5a and the sub support member 5b can be firmly clamped by the slide type locking tool 61, and the opening of the opening / closing part 2 can be controlled. In this embodiment, the cross-sectional shape of the main support upper surface portion 57a at the opening position and the cross-sectional shape obtained by combining the main support upper surface portion 57a and the sub-support upper surface portion 57b at the closed position are substantially the same. Thereby, the sliding movement of the locking tool 61 is enabled. Further, the locking tool 61 can be prevented from wobbling at the opening position.
[0064]
(Other)
As the locking means 6 other than the slide-type locking device 61, the main support member 5a and the sub-support member 5b provided with the locking recess 63 are combined, and the locking device 61 is forcibly fitted over the engaging member 61. It can also be implemented in the form of stopping.
(Bending member 7)
[10] FIG. 14 shows a state in which many items are stored in the file case according to the present invention. FIG. 14A shows a state in which the storage front portion 12 in the storage portion 1 and the opening / closing front portion 21 in the opening / closing portion 2 swell when the opening / closing portion 2 is closed. Thus, the opening / closing part 2 cannot be opened in the state where the front part and the opening / closing front part 21 are swollen. In order to open the swelled file case, the front part and the opening / closing front part 21 need to be recessed in the direction of the arrow shown in FIG. 14b.
[0065]
Here, if the bent portion 24 is a simple hinge mechanism, the recess in the arrow direction of FIG. 14b is not easily performed. Therefore, a preferred embodiment of the present invention is “the file case described above, which has the following configuration.
A slit width W2 of about 50 to 100% with respect to the file width W1 and a slit height H2 of about 0.5 to 10% with respect to the file height H1 are formed in the bent portion 24 at the upper end of the storage front portion 12. A slit 71 is provided.
A bending member 7 having excellent flexibility is disposed in the slit 71.
The bending member 7 is attached to the slit lower side 72 which is the lower side 42 in the slit 71.
The bending member 7 is attached to the slit upper side 73 which is the upper side 40 in the slit 71. "
“Slit 71” means a hole provided in the bent portion 24 of the file case, and a front view of the file case provided with the slit 71 is shown in FIG. The file width W1 and the file height H1 mean the width and height of the file case itself according to the present invention, and the slit width W2 and the slit height H2 are the width of the slit 71 provided in the bent portion 24 shown in FIG. It means height.
[0066]
Thus, by providing the slit 71 having a certain size in the bent portion 24, the recess in the arrow direction of FIG. 14b can be easily performed. As a result, the opening / closing operation of the opening / closing part 2 can be easily performed even in a file case inflated with a large number of objects.
[0067]
In addition, simply providing the slits 71 reduces the strength of the file case. For example, a crack is generated around the slit 71. Therefore, in this embodiment, the bending member 7 having excellent flexibility is provided inside the slit 71. This compensates for a decrease in strength due to the slit 71.
[0068]
The slit 71 increases the flexibility of the front of the file case, but if it is too small, the effect cannot be obtained. On the other hand, when the slit 71 is too large, the flexibility (particularly the front portion) of the file case increases, but the strength of the file case decreases too much. Therefore, the size of the slit 71 in this embodiment is about 50 to 100% with respect to the file width W1, about 0.5 to 10% with respect to the file height H1, or about 1 to 10 mm. Note that the slit width W2 of 100% with respect to the file width W1 means that all the bent portions 24 are formed of this bent member.
[0069]
A cross section of the bending member 7 attached to the slit 71 is shown in FIG. The bending member 7 is excellent in flexibility, and the one shown in the figure has two U-shaped portions 75 for attaching to the slit upper side 73 and the slit lower side 72 up and down and an intermediate portion 76 between them. is there. The bending member 7 may be made of a uniform material, but from the viewpoint of enhancing flexibility and strength, it is desirable that the U-shaped portion 75 is made of a hard resin and the intermediate portion 76 is made of a soft resin. . As this hard resin, P.I. P. (Polypropylene) or the like can be used. An elastomer or the like can be used as the soft resin.
[0070]
The “flexible member 7 having excellent flexibility” is not only a material such as a resin or rubber, but also a material such as a plastic that is not as flexible as these resins and rubbers. Alternatively, a configuration may be adopted in which a groove (bent groove 74) having a reduced thickness is provided in the slit width W2 direction and bent with the bent groove 74 as a base point. Further, a form in which the bending groove 74 is provided in the bending member 7 made of resin or rubber having excellent flexibility is also desirable.
[0071]
More specifically, a plurality of engagement teeth and a slider capable of engaging and disengaging these engagement teeth are provided at the periphery of the opening formed in the fabric, and the opening can be opened and closed by sliding the slider. A slide fastener may be used instead of the “flexible member 7 having excellent flexibility”. Specifically, this substitute example is an aspect in which a slide fastener is provided in the slit 71 so that the opening extends along the file width direction. In this case, the above-described effects can be similarly exerted on the file case by the flexibility of the fabric, and articles such as documents can be taken in and out from the opening.
[0072]
As the form which attaches this bending member 7 to the slit upper side part 73 and the slit lower side part 72, it can implement with various forms, such as welding, adhesion | attachment, fitting, and screwing. As a preferable mounting method, as shown in FIG. 16, the U-shaped portion 75 sandwiches the slit upper side 73 and the slit lower side 72 and adheres or welds.
[0073]
The slit 71 can be implemented in a form provided only in one of the front and rear bent parts 24, but a form provided in both bent parts 24 is desirable from the viewpoint of accommodating more objects. Further, the present invention can be implemented in a form in which two to four small slits are provided in one bent portion 24.
(Development)
FIG. 17 shows a development view of this file case. The one shown in FIG. 17 is a punched piece from, for example, a plastic sheet. Reference numeral 11 located at the center has a storage bottom surface portion, a storage front surface portion 12 on the upper and lower sides thereof, and an opening / closing front surface portion 21 and an opening / closing upper surface portion 23 above and below it. A storage side surface portion 13 is provided on both sides of the lower storage front surface portion 12 of the storage front surface portion 12. On the other hand, adhesive margins 14 are provided on both sides of the upper storage side surface portion 13. A Thomson hinge is provided between the storage front portion 12 and the opening / closing front portion 21, thereby allowing the opening / closing front portion 21 to be bent. In this embodiment, a hole having a width of 90% with respect to the file width and a width of 2% with respect to the file height is provided at the position of the Thomson hinge between the storage front portion 12 and the opening / closing front portion 21. To do. The bending member 7 shown in FIG.
[0074]
A main opening / closing side surface portion 22a is provided on both sides of the lower opening / closing front portion 21a in the figure, and a convex hole 34 is provided. On the other hand, the open / close side surface portions 22b on both sides of the upper sub open / close front surface portion 21b have a large projecting shape so that the open / close side surface portions 22 overlap when assembled in a file case. And the guide groove 32 is provided in the part which overlaps with the said hole 34 for convex parts. The shape of the guide groove 32 is 45 ° with respect to the lower line 35, and its form is as shown in FIG.
[0075]
In the developed view shown in FIG. 17, the boundary of each component is a bent portion, and the file case is assembled by bending the boundary. In the convex hole 34, the convex part 31 provided in the main support member 5a is penetrated from the outside to form the convex part 31, and this convex part 31 is further arranged in the guide groove 32 to form the connecting mechanism 3 ( (See FIG. 8).
[0076]
By the way, in the present embodiment, the material specifically used has been described, but it goes without saying that other materials can be substituted without departing from the gist of the present invention.
[Brief description of the drawings]
[Figure 1] Overall view of file case (when closed)
[Figure 2] Overall view of file case (when opened)
[Fig.3] Example of connecting plate use
[Figure 4] Side view of file case
FIG. 5: Embodiment of guide groove angle
[Fig. 6] Overall view of side reinforcing plate
FIG. 7a is an explanatory diagram of an opening / closing mechanism.
FIG. 7b is an explanatory diagram of the opening / closing mechanism.
FIG. 7c is an explanatory diagram of an opening / closing mechanism.
FIG. 8 is an explanatory diagram of a coupling mechanism and configuration.
FIG. 9 is a cross-sectional view of the open / close top surface (when opening)
FIG. 10 is a cross-sectional view of the opening / closing upper surface (when closed)
FIG. 11 is a top view of the locking means.
FIG. 12 is a sectional view of the locking means (when opened)
FIG. 13 is a sectional view of the locking means (when locked).
FIG. 14 is an overall view of a file case when stored.
FIG. 15 is a configuration diagram of a slit.
FIG. 16 is a cross-sectional view of a bending member
FIG. 17 is a development view of a file case.
FIG. 18 shows a conventional file case.
FIG. 19 shows a conventional file case (open / close view).
FIG. 20 is a diagram illustrating a coupling mechanism and a structure thereof;
[Explanation of symbols]
a: Opening / closing part 2 side provided with a convex part
b: The other opening / closing part 2 side
1 storage
11 Storage bottom
12 Storage front part 12
13 Storage side
14 glue cost
2 Opening / closing part 2 (2a Main opening / closing part 2b Sub opening / closing part 2)
21 Opening and closing front
22 Open / close side
23 Opening and closing top surface
24 Bent part
26 Convex distance
201 Front opening / closing part 2
202 Rear opening / closing part 2
203 connecting part
204 connecting plate
207 Central connection
209 Mounting distance
3 Linking mechanism
31 Convex
32 guide groove
33 Fixing groove
34 Hole for convex part
35 Down line
36 Guide groove range
37 groove width
38 Guide groove length
39 Guide groove angle
40 Upper side
41 Immobilization depression
42 Lower side
45 Side reinforcement plate
46 Reinforcement guide groove
47 Bending position
48 ends
5 Support members (5a main support member, 5b sub support member)
51 Handle
52 Main support side
53 Back support member
54 Ring groove
55 Ring prevention ring
56 Lower extension
57 Support upper surface portion (main support upper surface portion 57a, sub-support upper surface portion 57b)
58 dent
6 Locking means
61 Locking tool
62 Locking projection
63 locking recess (63a main locking recess, 63b sub locking recess)
7 Bending members
71 slit
72 Lower side of slit
73 Upper side of slit
74 Bending groove
75 U-shaped part
76 Middle part
W1 file width
W2 slit width
H1 file height
H2 slit height

Claims

A substantially rectangular parallelepiped file case having the following configuration.
The file case includes a box-shaped storage portion 1 having a storage bottom portion 11, front and rear storage front portions 12 and left and right storage side portions 13 around the storage bottom portion 11, and an opening at the top and bottom of the storage portion 1. It consists of two front and rear opening / closing parts 2 attached to the upper end of the front part 12 so as to be bent.
The side surface of the opening / closing part 2 is used as the opening / closing side part 22 so that a part of the opening / closing side part 22 always overlaps from when the opening / closing part 2 is closed to when it is opened.
The first open / close side surface 22 is provided with a convex portion 31 in the overlapping range, the open / close portion 2 provided with the convex portion 31 is a main open / close portion 2a, the open / close side surface 22 is a main open / close side portion 22a, and the other open / close side portion 22 is The opening / closing part 2 is a sub opening / closing part 2b, and its opening / closing side part 22 is a sub opening / closing side part 22b.
The sub-opening / closing side surface portion 22b is provided with a guide groove 32 having a width substantially the same as the diameter of the convex portion 31 at a position overlapping the convex portion 31 at the time of closing. Of the opening / closing portion 2a up to the bent portion 24a , the guide groove extends within a guide groove range 36 having an appropriate length according to the degree of opening / closing .
The convex portion 31 is disposed inside the guide groove 32 and is movable in the guide groove 32 while penetrating the guide groove 32 of the main opening / closing side surface portion 22a and the auxiliary opening / closing side surface portion 22b .
-The structure which consists of the guide groove 32 and the convex part 31 is made into the connection mechanism 3, and this connection mechanism 3 is provided in the opening-and-closing side part 22 of both right and left.
A portion of the opening / closing portion 2 on the side where the opening / closing portions 2 are in contact with each other is an opening, the inner opening / closing portion of the main opening / closing portion 2a has an inner shape that is substantially the same shape as the opening, and substantially The main support member 5a, which is shaped like a letter and is superior in strength to the case material that is the main material of the file case, is provided from one connection mechanism 3 to the other connection mechanism 3.
-In this main support member 5a, when the part provided in the opening-and-closing side part 22 is made into the main support side part 52, the convex part 31 in the said connection mechanism 3 is attached to this main support side part 52.
A handle 51 that facilitates carrying the file case is attached to the main support member 5a.

The file case according to claim 1 ,
The convex portion 31 and the main support side surface portion 52 are integrally formed,
- and that a means for preventing the escape of the projecting portion 31 from the interior of the file case.

A substantially rectangular parallelepiped file case, those having the following structure.
The file case includes a box-shaped storage portion 1 having a storage bottom portion 11, front and rear storage front portions 12 and left and right storage side portions 13 around the storage bottom portion 11, and an opening at the top and bottom of the storage portion 1. It consists of two front and rear opening / closing parts 2 attached to the upper end of the front part 12 so as to be bent.
The side surface of the opening / closing part 2 is used as the opening / closing side part 22 so that a part of the opening / closing side part 22 always overlaps from when the opening / closing part 2 is closed to when it is opened.
The first open / close side surface 22 is provided with a convex portion 31 in the overlapping range, the open / close portion 2 provided with the convex portion 31 is a main open / close portion 2a, the open / close side surface 22 is a main open / close side portion 22a, and the other open / close side portion 22 is The opening / closing part 2 is a sub opening / closing part 2b, and its opening / closing side part 22 is a sub opening / closing side part 22b.
The sub-opening / closing side surface portion 22b is provided with a guide groove 32 having a width substantially the same as the diameter of the convex portion 31 at a position overlapping the convex portion 31 at the time of closing. Of the opening / closing portion 2a up to the bent portion 24a , the guide groove extends within a guide groove range 36 having an appropriate length according to the degree of opening / closing .
The convex portion 31 is arranged inside the guide groove 32 so that it can move in the guide groove 32.
A side reinforcing plate 45 is provided in the movement range of the convex portion 31 that moves in accordance with the opening / closing operation of the opening / closing portion 2 in the storage side surface portion 13.
A distance from the bent portion 24a to the convex portion 31 is a convex portion distance 26, an arc shape having a radius corresponding to the convex portion distance 26 around a bending corresponding position 47 corresponding to the bent portion 24a, and A reinforcing guide groove 46 having substantially the same width as the convex portion 31 is provided in the side reinforcing plate 45 in the movement range of the convex portion 31.
The protrusion 31 is disposed in the reinforcing guide groove 46 and is movable in the reinforcing guide groove 46.

A file case according to claim 1, 2 or 3, which has the following configuration.
The upper surface of the sub-opening / closing portion 2b is a sub-opening / closing upper surface portion 23b, and the sub-opening / opening upper surface portion 23 of the sub-opening / closing portion 23b is provided with a sub-support member 5b that is superior in strength to the case material that is the main material of the file case. Provide.
-When the opening / closing part 2 is closed, the main support member 5a overlaps with the lower support member 5b on the bottom.

A file case according to claim 4, which has the following configuration.
A recess is provided on the outer side of the main support upper surface portion 57a located on the main opening / closing upper surface portion 23a of the main support member 5a, and this is referred to as a main locking recess 63a. A recess is provided on the outer side of the auxiliary support upper surface portion 57b, and this is used as an auxiliary locking recess 63b.
A locking means 6 for controlling the opening operation of the opening / closing portion 2 is provided on any one of the opening / closing upper surface portions 23 so as to sandwich the main locking recess 63a and the sub-locking recess 63b together when closing.

The file case according to claim 5 ,
In the locking means 6, the position where the locking is released is the opening position, the locking position is the closing position, and a locking tool 61 slidable between the opening position and the closing position is provided,
The cross-sectional shape of the main support upper surface portion 57a and the sub-support upper surface portion 57b in the closed position is substantially the same as the cross-sectional shape of the inner wall of the locking tool 61.

A file case as claimed in any one of claims 1 to 6, which has the following configuration.
A slit width W2 of about 50 to 100% with respect to the file width W1 and a slit height of about 0.5 to 10% with respect to the file height H1 at the bent portion 24 at the upper end of the storage front portion 12 A slit 71 having H2 is provided.
The bending member 7 having excellent flexibility is disposed in the slit 71.
The bending member 7 is attached to the slit lower side portion 72 which is the lower side 42 in the slit 71.
The bending member 7 is attached to the slit upper side 73 which is the upper side 40 in the slit 71.