JP2004316159A

JP2004316159A - Shutter case structure

Info

Publication number: JP2004316159A
Application number: JP2003109046A
Authority: JP
Inventors: Masaaki Nishiura; 正明西浦; Toshiyuki Ohashi; 利幸大橋
Original assignee: Bunka Shutter Co Ltd
Current assignee: Bunka Shutter Co Ltd
Priority date: 2003-04-14
Filing date: 2003-04-14
Publication date: 2004-11-11

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shutter case structure which is improved in appearance of a connection portion between each of a top plate and a front plate, and a side plate when viewed from the side, without protrusion or exposure of a head of a fixture to the outside. <P>SOLUTION: There is provided a shutter case 10 which has the top plate 12, the front plate 14, and the right and left bracket side plates 16, and is formed like a rectangular box. Each bracket side plate 16 has its end erected to form a connection margin 20 which is then stepped to form an engaging portion 24 connected to an inner surface of connection edges of right or left ends of the top plate 12 and the front plate 14. Thus the connection edges of the top plate 12 and the front plate 14 are connected to be flush with the connection margin 20 at the end of the bracket side plate. Further the bracket side plate 16 has a recess 30 formed therein at a location about a mounting hole 28 thereof, and the head of a screw B for mounting a bearing 26 on the bracket side plate is made flush with an outside surface of the bracket side plate 16. The top plate 12 and the front plate 14 are seam-joined to each other by means of hooked engaging portions 41, 45. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、建物などの構築構造物の開口部を開閉するためのシャッターを巻回状態で収納するためのシャッターケースの構造に関する。
【０００２】
【従来の技術】
巻取式シャッターカーテンを巻回状態で収納するためのシャッターケースは、一般に図９に示すような組立構造となっている。このシャッターケースＡは、天板ａ、天板ａに係合する前板ｂ、天板ａ及び前板ｂの両側面に位置し、かつ建物壁面に固定される側板、すなわちブラケット板ｃより略構成される。ブラケット板ｃの周縁には、天板ａ，前板ｂの内側に嵌合する内側フランジｃ１が形成され、このフランジｃ１が、天板ａ及び前板ｂの両端縁内側に嵌合してこれら端縁を保持し、すなわち、シャッターケースＡは略方形箱状に形成される。なお、図９では短縮されて描かれているが、実際には天板ａ及び前板ｂは建物の窓部などの建物開口部の間口寸法に応じた長さとされる。
【０００３】
また、ブラケット板ｃの側面部には、一対のネジ取付孔ｃ２が内外を貫通して形成され、ブラケット板ｃの内側にシャッターカーテンの巻取軸（図示せず）の端部を支持するための軸受ブラケットｄを配置し、軸受ブラケットｄのネジ孔ｄ１をネジ孔ｃ１に位置させた状態で、ブラケット板ｃの外側からネジＢをネジ込むことにより、軸受ブラケットｄの固定を行っている。
【０００４】
しかし、この構造では図１０に示す目視線Ｌ１で示すように、側方から天板ａ，前板ｂの端面及び天板ａ，前板ｂとブラケット板ｃの嵌合部の継目が目視されてしまう。特にブラケット板ｃのフランジｃ１と端面との間には、ブラケット板ｃをプレス加工より構成すると、湾曲した屈曲部分が形成されてしまうため、見た目には継目が大きくあく。また、側面の端縁方向の目視線Ｌ２からはネジＢの頭部が突出して見えてしまい、これらにより見栄え上の不具合があった。
【０００５】
このような不具合をなくすために、ブラケット板ｃとは別にカバーを設ける構造が下記特許文献１に開示されている。このカバーは、基端部が建物開口の側縁に固設され、前記天板，前板の端縁を覆う軟質で可撓性を有するカバー部材であり、必要に応じてカバー部材を端縁から引き剥がすようにして脱離できるようにしたものである。したがって、この構造では、シャッターケースの端縁がカバー部材で覆われてしまうため、上述のような継目や、ネジ頭部が隠されることとなり、見栄えは良好となる。
【０００６】
【特許文献１】
特開平１０−１４０９４５号公報
【０００７】
【発明が解決しようとする課題】
しかしながら、上述した特許文献１による構造では、カバー部材が軟質樹脂またはゴムなどの成形体からなっている一方、特にこの種のシャッターケースでは軒下など雨風にさらされたり、紫外線などの影響を大きく受ける箇所に配置されるものであるため、長期的視点から見ると、経年劣化などにより見栄えが低下するおそれがある。
【０００８】
また、上述した図９に示す構造においては、天板ａの前面下部の内側に前板ｂの前面上縁が重なっているだけであり、この場合には、ネジなどを介して天板ａ，前板ｂ間を結合する必要があるが、前記シャッターケースＡの組立手順としては、ブラケット板ｃを開口部両側面に固定し、次いで天板ａをブラケットｃ板間に組み付け、次いで前板ｂを天板ａに組み付けるため、前板ｂの組付にはその間口寸法によって、一人が前板ｂを支える一方で他の一人がネジ結合作業を行わなければならず、少なくとも二人の作業員を要し、取り付け時の作業に手間がかかっていた。
さらに、保守点検時などにおいても、前板ｂの取外しなどに作業員を複数配して行わなければならず、メンテナンス性が低かった。
【０００９】
本発明は、以上の課題を解決するものであり、その目的は、天板及び前板と側板間の接合部位における側方視での見栄えを向上することにある。また、本発明の他の目的は、側板をブラケット板とした場合における固定具頭部の突出がなく、見栄えを向上することにある。さらに本発明の他の目的は、天板及び前板の取付け及び取外しを簡単に行えるようにして施工性を向上することにある。
【００１０】
【課題を解決するための手段】
次に、上記の課題を解決するための手段を、実施の形態に対応する図面を参照して説明する。
この発明の請求項１記載のシャッターケースの構造は、少なくとも天板１２と、前板１４及び左右の側板６０（１６，５０）を備えて略方形箱状に形成され、内部にシャッターカーテンを巻回収納可能とし、構築構造物開口の縁部に配設されるシャッターケースの構造において、
前記側板６０（１６，５０）の端縁に形成され板面に対して起立形成される接合代６２（２０，５４）と、前記天板１２及び前板１４の各左右端縁の接合縁とのいずれか一方に、段差を設けて係止部１２ａ，１４ａ（２４，５６）を形成し、該係止部１２ａ，１４ａ（２４，５６）を介して前記天板１２及び前板１４の接合縁が前記側板端縁の接合代６２（２０，５４）に面一状に接続されることを特徴とする。
【００１１】
請求項２記載のシャッターケースの構造は、少なくとも天板１２と、前板１４及び左右の側板を備えて略方形箱状に形成され、内部にシャッターカーテンを巻回収納可能とし、構築構造物開口の縁部に配設されるシャッターケースの構造において、
前記側板が、前記シャッターカーテンの巻取軸の端部を支持する軸受２６を内側に備えたブラケット側板１６よりなり、該ブラケット側板１６の端縁に形成され板面に対して起立形成される接合代２０に段差を設け、前記天板１２及び前板１４の各左右端縁の接合縁の内側面に接続される係止部２４を形成し、該係止部２４を介して前記天板１２及び前板１４の接合縁が前記ブラケット側板端縁の接合代２０に面一状に接続されることを特徴とする。
【００１２】
請求項３記載のシャッターケースの構造は、少なくとも天板１２と、前板１４及び左右の側板を備えて略方形箱状に形成され、内部にシャッターカーテンを巻回収納可能とし、構築構造物開口の縁部に配設されるシャッターケースの構造において、
前記側板が、前記シャッターカーテンの巻取軸の端部を支持する軸受２６を内側に備えたブラケット板５８の外側面を被覆する化粧用外装板５０よりなり、該化粧用外装板５０の端縁に形成され板面に対して起立形成される接合代５４に段差を設け、前記天板１２及び前板１４の各左右端縁の接合縁の内側面に接続される係止部５６を形成し、該係止部５６を介して前記天板１２及び前板１４の接合縁が前記化粧用外装板端縁の接合代５４に面一状に接続されることを特徴とする。
【００１３】
請求項４記載のシャッターケースの構造は、請求項１記載のシャッターケースの構造において、前記側板６０の内側に取り付けられ、前記シャッターカーテンの巻取軸の端部を支持する軸受２６が、側板６０の外側よりこれに形成された複数の取付孔２８に各々貫通する固定具Ｂにより取付けられるものであって、前記取付孔２８周囲には、固定具頭部を前記側板６０の外側面と面一となる凹部３０を形成するとともに、該側板６０の内側面に突出する凸部３１を形成し、前記軸受２６の固定孔３６周囲には前記凸部３１に嵌合する凹部３８を形成することを特徴とする。
【００１４】
請求項５記載のシャッターケースの構造は、請求項２記載のシャッターケースの構造において、前記ブラケット側板１６の内側に取り付けられる軸受２６が、前記ブラケット側板１６の外側よりこれに形成された複数の取付孔２８に各々貫通する固定具Ｂにより取付けられるものであって、前記取付孔２８周囲には、固定具頭部を前記ブラケット側板１６の外側面と面一となる凹部３０を形成するとともに、該ブラケット側板１６の内側面に突出する凸部３１を形成し、前記軸受２６の固定孔３６周囲には前記凸部３１に嵌合する凹部３８を形成することを特徴とする。
【００１５】
請求項６記載のシャッターケースの構造は、請求項３記載のシャッターケースの構造において、前記ブラケット板５８の内側に取り付けられる軸受２６が、前記ブラケット板５８の外側よりこれに形成された複数の取付孔２８に各々貫通する固定具Ｂにより取付けられるものであって、前記取付孔２８周囲には、固定具頭部を前記ブラケット板５８の外側面と面一となる凹部３０を形成するとともに、該ブラケット板５８の内側面に突出する凸部３１を形成し、前記軸受２６の固定孔３６周囲には前記凸部３１に嵌合する凹部３８を形成することを特徴とする。
【００１６】
請求項７記載のシャッターケースの構造は、請求項１又は４に記載のシャッターケースの構造において、前記天板１２の前縁には、後縁方向に延出する鉤形係合部４１が形成され、前記前板１４の上縁には、前方に延出する鉤形係合部４５が形成されて、各鉤形係合部４１，４５により互いにはぜ継ぎ式に結合する構造とされることを特徴とする。
【００１７】
請求項８記載のシャッターケースの構造は、請求項２，３，５，６のいずれか１つに記載のシャッターケースの構造において、前記天板１２の前縁には、後縁方向に延出する鉤形係合部４１が形成され、前記前板１４の上縁には、前方に延出する鉤形係合部４５が形成されて、各鉤形係合部４１，４５により互いにはぜ継ぎ式に結合する構造とされるとともに、各鉤形係合部４１，４５の長手方向両端に所定長さの切欠部４２ａ，４６ａがそれぞれ形成されることを特徴とする。
【００１８】
このような構成によれば、天板１２，前板１４と、側板１６，６０との接合部分において、係止部１２ａ，１４ａ，２４によって接合代２０，６２と接合縁との位置、すなわち継目が、側方視で目視されない位置となり、すなわち側方視で見えず、見栄えを向上することができる効果を得られる。
【００１９】
また、ブラケット板５８の外側を被覆する化粧用外装板５０においても、接合代５４に段差を設け係止部５６を形成することで、同様に見栄えの向上を得られるとともに、軸受固定用の固定具であるネジＢが隠されるため、さらに見栄えが向上する。
【００２０】
また、本発明によれば、側板６０或いはブラケット側板１６に、軸受２６を取り付けるための取付孔２８の周囲に凹部３０を設けたことで、固定具頭部が板面よりも突出することがなく、見栄えを向上できる。
【００２１】
さらに、この取付孔２８の凹部３０に対応する内側面の凸部３１と、軸受２６の固定孔３６周囲に形成される凹部３８とで、これら内側面と軸受２６との密着性を向上させるとともに、軸受取付時の位置決めが可能となり、その取付け作業性が向上することとなる。
【００２２】
また、取付孔２８周囲の凹部３０により、固定具頭部が突出しないことから、シャッターケース１０を横方向に連ねて設置する所謂連装構成とした際に、側板６０或いはブラケット側板１６を隣り合わせて密着させて設置でき、隣接するシャッターケース１０同士に不要な隙間を生じさせずに構成できる効果を得られる。
【００２３】
さらに本発明によれば、天板１２と前板１４とを鉤形係合部４１，４５よりなるはぜ継ぎ式に結合する構造としたことで、天板１２に対する前板１４の連結作業性を改善でき、すなわち、一人の作業員で長尺な前板１４の取付作業、取外し作業を行うことができ、省力化・省人化を図ることができ、施工性及びメンテナンス性を向上させることが可能となる。
【００２４】
またこのはぜ継ぎ式の結合部分である各鉤形係合部４１，４５の長手方向両端に形成された所定長さの切欠部４２ａ，４６ａによって、側板に干渉することなく、これら天板１２，前板１４を取り付けることが可能となる。
【００２５】
【発明の実施の形態】
以下、本発明の好ましい実施の形態につき、添付図面を参照して詳細に説明する。
図１ないし図６は、本発明の第一の実施の形態を示すもので、本実施の形態では側板としてブラケット側板１６を用いた事例を示している。
【００２６】
図１〜図４において、シャッターケース１０は、鋼板などのプレス成形体からなる天板１２，前板１４と、これら天板１２，前板１４の側面に組み付けられる同じく鋼板などのプレス成形体からなる側板を構成するブラケット側板１６とから大略構成されている。
【００２７】
ブラケット側板１６は、前記天板１２，前板１４の組合わせ断面形状に沿った多角形状であって、背面側が略垂直に形成された側面部１８と、側面部１８の外周端縁にあってその内側に向けて板面に対して起立し折曲加工された接合代としてのフランジ部２０とからなっており、フランジ部２０の前縁には前記天板１２，前板１４の前縁に設けた後述する鉤形係合部４２，４６の突出形状に応じた突出部２０ａが設けられている。
【００２８】
フランジ部２０の背面側は、本実施の形態では、図３，４に示すように、構築構造物としての建物の壁面に設けられる図示しない取付金具に固定される係止片２２となっており、この係止片２２には壁面に固設される図示しない壁面固定金具に対する引掛係止用の適宜な凹凸片２２ａが形成されている。なお、このフランジ部２０の背面側は、上記のような凹凸片２２ａを備えた係止片２２の構成に限定されることはなく、建物の壁面に対して固設される構造であれば、その他の構成としても良い。
【００２９】
フランジ部２０の前部側各面と底部の一部には、例えば絞り加工により段差を設けてそれぞれの面に係止部２４を一体に形成し、この係止部２４が天板１２，前板１４との接合縁内側に嵌合することで、組立状態においてフランジ部２０と天板１２，前板１４の接合縁を同一面となるようにしている。
なお、図では係止部２４とフランジ部との段差を誇張して描いているが、実際の段差は、前記天板１２，前板１４の板厚に相当して実寸で０．５ｍｍ程度となっている。
【００３０】
ブラケット側板１６の側面部１８の表面には、図１，図２に示すように、巻取軸の軸受２６を固定するための一対の取付孔２８が内外を貫通して開口されているとともに、取付孔２８の周囲には、例えば絞り加工により凹部３０が形成されており、すなわち、皿孔状に形成されて、この取付孔２８を通じて固定具としてのネジＢを螺着した状態では、図５に示すごとく、ネジ頭部が側面部１８の平面内に収り、平面内での目視線Ｌａからは見えることがなく、見栄えが向上する。
【００３１】
軸受２６は、図３及び図４に示すように、断面コ字形をなし、支持ボルトＢ１を挿通する長孔３２ａを両側に形成した軸受本体３２と、軸受本体３２の左右及び下部に延出形成された取付片３４とからなっており、このうち左右の取付片３４には前記ネジＢが螺着される固定孔としてのネジ孔３６が形成され、さらにこのネジ孔３６の周囲には前記凹部３０の側面部１８の内側に対する凸部３１に応じた凹部３８が例えば絞り加工にて皿孔状に形成され、側面部１８の内壁面に対する左右フランジ３４の密着性を確保している。
【００３２】
なお、この凹部３８は、軸受２６の取り付け時に側面部１８の凸部３１に係合することにより、位置決めとなることから、軸受２６の取付け作業性も向上する。
【００３３】
天板１２の頂部背面には壁面取付用のフランジ４０が一体に立上げ形成されており、天板１２の前縁には内側に向けた鉤形係合部４１が一体に形成されている。この鉤形係合部４１は、断面略コ字形に形成されて、先端縁の鉤状片４２が上向きに形成され、またこの鉤状片４２の両側部、すなわちブラケット側板１６との接合位置のみ図３（ｂ）に示すように切欠形成され切欠部４２ａとなっている。
【００３４】
前板１４の底部背面には、シャッターカーテン昇降用の開口の縁部となる断面略コ字形の縁取り片４４が立ち上げ形成されている。また、前板１４の前縁上部には天板１２の鉤形係合部４１に、はぜ継ぎ式に嵌合する鉤形係合部４５が外側に向けて一体に形成されている。この鉤形係合部４５は、断面略コ字形に形成されて、先端縁の鉤状片４６が下向きに形成され、またこの鉤状片４６の両端部、すなわちブラケット側板１６との接合位置のみ切欠形成され切欠部４６ａとなっている。
なお、各鉤状片４２，４６は、天板１２，前板１４の長手方向略全域に沿って連続形成され、天板１２に対する前板１４の脱着を容易にしている。
【００３５】
以上における組立順序は、先ず、建物開口部の上縁両側にブラケット側板１６を固定する。次いで図４（ａ）に示すように、天板１２をブラケット側板１６上に載置する。この状態で天板１２の長手方向両端はフランジ部２０の内側にの各面に形成された係止部２４に重ね合される。その後、適宜位置をネジなどで天板１２を係止部２４に固定する。
【００３６】
次いで前板１４の鉤状片４６を天板１２の鉤状片４２に下方より引っ掛ける。そして、これら鉤状片４２，４６の部分を基点として前板１４の底部を持上げ、適宜位置をネジなどで固定することで、図４（ｂ）に示すように、シャッターケース１０の組立を完了する。
【００３７】
この場合、鉤形係合部４１，４５（鉤状片４２，４６）同士の係合により、長尺な前板１４を複数の作業員で支えることで行われていた従来のような作業を行わなくとも、前板１４は片手で持ち上げるだけで正しい取り付け位置となるため、一人の作業員の作業により組み付けを行えることになり、前板１４の長手方向両端も各面に形成された係止部２４の外側に正しく重ねあわされる。
【００３８】
特に、はぜ継ぎ式の結合部分である各鉤形係合部４１，４５の長手方向両端に形成された所定長さの切欠部４２ａ，４６ａによって、ブラケット側板１６に干渉することなく、これら天板１２，前板１４を取り付けることが可能となる。
【００３９】
そして、組立完了状態では、天板１２，前板１４とブラケット側板１６のフランジ部２０とは同一面となる。なおこの接合部における継目部分は当然ながら正面視では目視されることになるが、図６に示すように、側方からの目視線Ｌｂによる継目がなく、意匠性が向上することとなる。
【００４０】
また、保守点検などの際に、シャッターケース１０内への作業を行う場合であっても、前板１４を固定するネジを取り外せば、容易にシャッターケース１０内部を開放させることができ、メンテナンス性が向上することとなる。
【００４１】
なお、シャッターケース１０における天板１２，前板１４及びブラケット側板１６は、防錆塗装などの耐食性或いは耐候性のある堅牢な表面仕上げにより保護されることで、意匠性等を得ることができる。
【００４２】
また、ブラケット側板１６の取付孔２８の周囲の凹部３０により、ネジ頭部が突出しないことから、シャッターケース１０を横方向に連ねて設置する所謂連装構成とした際に、ブラケット側板１６を密着させて設置でき、隣接するシャッターケース１０同士に不要な隙間を生じさせずに構成できることとなる。
【００４３】
次に第二の実施の形態について説明する。
図７は化粧用外装板５０を設けた第二の実施の形態を示すものである。なお、前述した第一の実施の形態と同一箇所には同一符号を付してその説明を省略する。
なお、この第二の実施の形態では、上記第一の実施の形態における軸受２６が取り付けられるブラケット側板１６に換え、係止部２４のみを備えない略同構成のブラケット板５８を用い、このブラケット板５８の側面部内側に軸受２６が取り付けられる。
【００４４】
図において、化粧用外装板５０は、ブラケット板５８の外側全体を包囲する側面部５２と、これの外側部にあって内側に向けて板面に対し起立形成された接合代としてのフランジ部５４を備え、フランジ部５４の上下面をネジＢ３によってブラケット板５８に連結している。
【００４５】
フランジ部５４には、段差を設けて前記天板１２，前板１４の接合縁内側に嵌合する係止部５６が形成され、これによって天板１２，前板１４と化粧用外装板５０のフランジ部５４との接合部位を略面一状態としている。
【００４６】
本実施形態でも前記と同一の効果を得られるほか、軸受２６の固定用のネジ頭部が全く隠されてしまうため、さらに見栄えが向上する。
【００４７】
なお、以上の化粧用外装板５０は鋼板のプレス加工品でもよいし、耐久性のある合成樹脂成形体であってもよい。
【００４８】
次に第三の実施の形態について説明する。
図８は、第三の実施の形態を示すもので、前述した第二の実施の形態のブラケット板５８と同等の構成の側板６０を備えた構成とされている。すなわち、軸受（図示せず）が側面部６１の内側に取り付けられ、端縁には板面に起立して接合代としてのフランジ部６２が形成される。このフランジ部６２はフラットに形成されている。
【００４９】
天板１２，前板１４の各接合縁には、絞り加工などによって、段差を設けて係止部１２ａ，１４ａが形成される。これら係止部１２ａ，１４ａをフランジ部６２の内側に嵌合し、これによって天板１２，前板１４と、側板６０のフランジ部６２の接合部分を略面一状としている。
このような構成によっても前記第一、第二の実施の形態と同様な効果を得ることができる。
なお、接合する相手側は側板６０でなく、上記した化粧用外装板５０であってもよいことは勿論である。この化粧用外装板５０の場合にも、係止部５６を備えない構成でよく、フランジ部５４の内側に嵌合する構成とされる。
【００５０】
なお、上述した各実施の形態において、ネジを固定具とした例について述べたが、この固定具としては、ボルトやリベットなどで構成してもよく、すなわち、頭部を備えた形状の固定具であれば、上記同様の効果を得ることができる。
【００５１】
【発明の効果】
以上の説明したように、本発明のシャッターケースの構造によれば、天板，前板と、側板との接合部分において、係止部によって接合代と接合縁との位置が側方視で目視されない位置となり、すなわち側方視で見えず、見栄えを向上することができる効果を得られる。
【００５２】
また、本発明によれば、側板或いはブラケット側板に、軸受を取り付けるための取付孔の周囲に凹部を設けたことで、固定具頭部が板面よりも突出することがなく、見栄えを向上できる。
【００５３】
さらに、この取付孔の凹部に対応する内側面の凸部と、軸受の固定孔周囲に形成される凹部とで、これら内側面と軸受との密着性を向上させるとともに、軸受取付時の位置決めが可能となり、その取付け作業性が向上することとなる。
【００５４】
また、取付孔周囲の凹部により、固定具頭部が突出しないことから、シャッターケースを横方向に連ねて設置する所謂連装構成とした際に、側板或いはブラケット側板を密着させて設置でき、隣接するシャッターケース同士に不要な隙間を生じさせずに構成できる効果を得られる。
【００５５】
さらに本発明によれば、天板と前板とを鉤形係合部よりなるはぜ継ぎ式に結合する構造としたことで、天板に対する前板の連結作業性を改善でき、すなわち、一人の作業員で長尺な前板の取付作業、取外し作業を行うことができ、省力化・省人化を図ることができ、施工性及びメンテナンス性を向上させることが可能となる。
【００５６】
またこのはぜ継ぎ式の結合部分である各鉤形係合部の長手方向両端に形成された所定長さの切欠部によって、側板に干渉することなく、これら天板，前板を取り付けることが可能となる。
【図面の簡単な説明】
【図１】本発明の第一の実施の形態によるブラケット側板と軸受との取り付け関係を示す分解斜視図である。
【図２】同ブラケット側板の斜視図である。
【図３】（ａ）は同ブラケット側板と天板，前板との結合関係を示す分解斜視図、（ｂ）は天板の一部拡大斜視図である。
【図４】（ａ），（ｂ）は天板，前板をブラケット側板に組み付ける手順を示す斜視図である。
【図５】図２のＡ−Ａ線における断面図である。
【図６】図４（ｂ）のＢ−Ｂ線における断面図である。
【図７】本発明の第二の実施の形態を示す化粧用外装板を配置した断面図である。
【図８】本発明の第三の実施の形態を示す部分断面図である。
【図９】従来のシャッターケースの斜視図である。
【図１０】同シャッターケースの断面図である。
【符号の説明】
１０…シャッターケース
１２…天板
１２ａ，１４ａ，２４，５６…係止部
１４…前板
１６…側板（ブラケット側板）
１８，５２…側面部
２０，５４，６２…接合代（フランジ部）
２６…軸受
２８…取付孔
３０…凹部
３１…凸部
３６…固定孔（ネジ孔）
３８…凹部
４１，４５…鉤形係合部
４２ａ，４６ａ…切欠部
５０…側板（化粧用外装板）
６０…側板[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a shutter case structure for storing a shutter for opening and closing an opening of a building structure such as a building in a wound state.
[0002]
[Prior art]
A shutter case for storing a wind-up shutter curtain in a wound state generally has an assembly structure as shown in FIG. The shutter case A has a top plate a, a front plate b that engages with the top plate a, and side plates fixed to the building wall surface, which are located on both side surfaces of the top plate a and the front plate b, that is, the bracket plate c. Be composed. On the peripheral edge of the bracket plate c, an inner flange c1 is formed to fit inside the top plate a and the front plate b, and this flange c1 fits inside both end edges of the top plate a and the front plate b and The edge is held, that is, the shutter case A is formed in a substantially rectangular box shape. In FIG. 9, the top plate a and the front plate b have a length corresponding to the width of the opening of the building such as the window of the building.
[0003]
A pair of screw mounting holes c2 are formed in the side surface of the bracket plate c so as to penetrate the inside and the outside, and support the end of the winding shaft (not shown) of the shutter curtain inside the bracket plate c. The bearing bracket d is fixed by screwing a screw B from the outside of the bracket plate c with the screw hole d1 of the bearing bracket d positioned at the screw hole c1.
[0004]
However, in this structure, as shown by the line of sight L1 shown in FIG. 10, the end faces of the top plate a and the front plate b and the joints of the fitting portions of the top plate a, the front plate b and the bracket plate c are viewed from the side. Would. In particular, if the bracket plate c is formed by press working between the flange c1 and the end face of the bracket plate c, a curved bent portion is formed, so that the seam is large in appearance. Further, the head of the screw B protrudes and looks from the visual line L2 in the edge direction of the side surface, which causes a problem in appearance.
[0005]
In order to eliminate such a problem, a structure in which a cover is provided separately from the bracket plate c is disclosed in Patent Document 1 below. This cover is a soft and flexible cover member whose base end is fixed to the side edge of the building opening and covers the edges of the top plate and the front plate. It can be detached by peeling it off. Therefore, in this structure, since the edge of the shutter case is covered by the cover member, the joints and the screw heads as described above are hidden, and the appearance is improved.
[0006]
[Patent Document 1]
JP-A-10-140945
[Problems to be solved by the invention]
However, in the structure according to Patent Literature 1 described above, the cover member is formed of a molded body such as a soft resin or rubber, and particularly in this type of shutter case, the cover member is exposed to rain and wind, such as under eaves, and is greatly affected by ultraviolet rays or the like. Since they are arranged at locations, there is a possibility that their appearance will deteriorate due to aging and the like when viewed from a long-term viewpoint.
[0008]
Further, in the structure shown in FIG. 9 described above, only the upper edge of the front surface of the front plate b overlaps the inside of the lower portion of the front surface of the top plate a. In this case, the top plates a, Although it is necessary to connect the front plates b, as a procedure for assembling the shutter case A, the bracket plate c is fixed to both side surfaces of the opening, the top plate a is assembled between the bracket c plates, and then the front plate b In order to assemble the front plate b, one of the front plates b must be supported by the front plate b while the other person must perform the screw connection work, depending on the width of the front plate b. And the work at the time of installation was troublesome.
Further, even at the time of maintenance and inspection, a plurality of workers must be arranged to remove the front plate b and the like, so that the maintainability is low.
[0009]
The present invention has been made to solve the above-described problems, and an object of the present invention is to improve the appearance of a joining portion between a top plate and a front plate and a side plate in a side view. Further, another object of the present invention is to improve the appearance without the protrusion of the fixing member head when the side plate is a bracket plate. Still another object of the present invention is to improve workability by easily attaching and detaching a top plate and a front plate.
[0010]
[Means for Solving the Problems]
Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The structure of the shutter case according to claim 1 of the present invention is formed in a substantially rectangular box-like shape including at least the top plate 12, the front plate 14, and the left and right side plates 60 (16, 50), and a shutter curtain is wound inside. In the structure of the shutter case which can be stored once and is arranged at the edge of the opening of the building structure,
A joint margin 62 (20, 54) formed on the edge of the side plate 60 (16, 50) and formed upright with respect to the plate surface, and a joint edge of the left and right edges of the top plate 12 and the front plate 14 A step is formed on one of the two to form the locking portions 12a, 14a (24, 56), and the top plate 12 and the front plate 14 are joined via the locking portions 12a, 14a (24, 56). The edge is connected to the joint margin 62 (20, 54) of the side plate edge in a flush manner.
[0011]
The structure of the shutter case according to claim 2 is provided with at least a top plate 12, a front plate 14, and left and right side plates, and is formed in a substantially rectangular box shape, in which a shutter curtain can be wound and housed, and a building structure opening. In the structure of the shutter case arranged at the edge of the
The side plate is composed of a bracket side plate 16 provided with a bearing 26 for supporting an end of a take-up shaft of the shutter curtain inside, and is formed at an edge of the bracket side plate 16 and formed upright with respect to the plate surface. A step is provided in the margin 20 to form a locking portion 24 connected to the inner surface of the joining edge of the left and right edges of the top plate 12 and the front plate 14, and the top plate 12 is And the joint edge of the front plate 14 is connected to the joint margin 20 of the bracket side plate edge at the same level.
[0012]
The structure of the shutter case according to claim 3, wherein the shutter case has at least a top plate 12, a front plate 14, and left and right side plates and is formed in a substantially rectangular box shape, and a shutter curtain can be wound and housed therein, so that the opening of the building structure is formed. In the structure of the shutter case arranged at the edge of the
The side plate comprises a decorative exterior plate 50 covering an outer surface of a bracket plate 58 provided with a bearing 26 for supporting an end of a winding shaft of the shutter curtain, and an edge of the decorative exterior plate 50. A step is provided in the joining margin 54 formed upright with respect to the plate surface, and a locking portion 56 connected to the inner surface of the joining edge of each of the left and right edges of the top plate 12 and the front plate 14 is formed. The joining edge of the top plate 12 and the front plate 14 is connected to the joining margin 54 of the edge of the decorative exterior plate via the locking portion 56 in a flush manner.
[0013]
The structure of the shutter case according to claim 4 is the same as the structure of the shutter case according to claim 1, wherein the bearing 26 attached to the inside of the side plate 60 and supporting the end of the winding shaft of the shutter curtain is formed by the side plate 60. The fixing member B is attached to a plurality of mounting holes 28 formed on the outside of the side plate 60 by a fixing tool B penetrating therethrough. And a convex portion 31 protruding from the inner surface of the side plate 60, and a concave portion 38 fitted to the convex portion 31 around the fixing hole 36 of the bearing 26. Features.
[0014]
According to a fifth aspect of the present invention, in the shutter case structure according to the second aspect, a plurality of mountings formed on the inner side of the bracket side plate from the outer side of the bracket side plate are provided. The fixing tool B is attached to each of the holes 28 by a fixing tool B penetrating therethrough. Around the mounting hole 28, a fixing tool head is formed with a concave portion 30 which is flush with the outer side surface of the bracket side plate 16. A protruding portion 31 is formed on the inner side surface of the bracket side plate 16, and a recess 38 is formed around the fixing hole 36 of the bearing 26 so as to be fitted to the protruding portion 31.
[0015]
According to a sixth aspect of the present invention, in the shutter case structure according to the third aspect, a plurality of mountings formed on the inner side of the bracket plate 58 from the outer side of the bracket plate 58 are provided. The fixing tool B is attached to each of the holes 28 by a fixing tool B penetrating therethrough. Around the mounting hole 28, a fixing tool head is formed with a concave portion 30 which is flush with the outer surface of the bracket plate 58, and A protrusion 31 is formed on the inner surface of the bracket plate 58, and a recess 38 is formed around the fixing hole 36 of the bearing 26 so as to fit the protrusion 31.
[0016]
The structure of the shutter case according to claim 7 is the same as the structure of the shutter case according to claim 1 or 4, wherein a hook-shaped engaging portion 41 extending in a rear edge direction is formed at a front edge of the top plate 12. At the upper edge of the front plate 14, a hook-shaped engaging portion 45 extending forward is formed, and the hook-shaped engaging portions 41 and 45 are connected to each other in a splicing manner. It is characterized by the following.
[0017]
The structure of the shutter case according to claim 8 is the shutter case structure according to any one of claims 2, 3, 5, and 6, wherein the front edge of the top plate 12 extends in the rear edge direction. A hook-shaped engaging portion 41 is formed, and a hook-shaped engaging portion 45 extending forward is formed on an upper edge of the front plate 14. The hook-shaped engaging portions 41 and 45 are formed with cutout portions 42a and 46a at both ends in the longitudinal direction, respectively.
[0018]
According to such a configuration, in the joint portion between the top plate 12, the front plate 14, and the side plates 16, 60, the positions of the joining margins 20, 62 and the joining edges, that is, the joints, by the locking portions 12a, 14a, 24. However, the position is not visible when viewed from the side, that is, it is not visible when viewed from the side, and an effect of improving appearance can be obtained.
[0019]
Also, in the decorative exterior panel 50 that covers the outside of the bracket plate 58, by providing a step at the joining margin 54 and forming the locking portion 56, the appearance can be similarly improved, and the fixing for bearing fixing can be achieved. Since the screw B, which is a tool, is hidden, the appearance is further improved.
[0020]
Further, according to the present invention, the recess 30 is provided around the mounting hole 28 for mounting the bearing 26 on the side plate 60 or the bracket side plate 16, so that the fixture head does not protrude from the plate surface. , Can improve the appearance.
[0021]
Further, the convexity 31 on the inner surface corresponding to the concave portion 30 of the mounting hole 28 and the concave portion 38 formed around the fixing hole 36 of the bearing 26 improve the adhesion between the inner surface and the bearing 26, and In addition, the positioning at the time of mounting the bearing becomes possible, and the mounting workability is improved.
[0022]
Further, since the fixing member head does not protrude due to the concave portion 30 around the mounting hole 28, when the shutter case 10 is installed in a so-called continuous configuration in which the shutter case 10 is laterally connected, the side plate 60 or the bracket side plate 16 is closely attached to the side. The shutter case 10 can be installed without any unnecessary gaps between the adjacent shutter cases 10.
[0023]
Further, according to the present invention, the top plate 12 and the front plate 14 are connected in a seam-type manner including the hook-shaped engaging portions 41 and 45, so that the workability of connecting the front plate 14 to the top plate 12 is improved. That is, it is possible to perform the work of attaching and detaching the long front plate 14 with one worker, and to save labor and labor, and to improve the workability and maintainability. Becomes possible.
[0024]
Also, the notches 42a, 46a of predetermined lengths formed at both ends in the longitudinal direction of the hook-shaped engaging portions 41, 45, which are the seam-type connecting portions, do not interfere with the side plates without interfering with the side plates. , The front plate 14 can be attached.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIGS. 1 to 6 show a first embodiment of the present invention. In this embodiment, an example in which a bracket side plate 16 is used as a side plate is shown.
[0026]
1 to 4, a shutter case 10 includes a top plate 12 and a front plate 14 made of a press-formed body such as a steel plate, and a press-formed body such as a steel plate attached to the side surfaces of the top plate 12 and the front plate 14. And a bracket side plate 16 forming a side plate.
[0027]
The bracket side plate 16 has a polygonal shape along the combined cross-sectional shape of the top plate 12 and the front plate 14, and has a rear surface formed with a substantially vertical side surface 18 and an outer peripheral edge of the side surface 18. It has a flange portion 20 as a joining margin which is raised and bent toward the inside of the plate surface, and has a front edge of the flange portion 20 at a front edge of the top plate 12 and a front edge of the front plate 14. Protrusions 20a are provided according to the protruding shapes of the hook-shaped engagement portions 42, 46 described later provided.
[0028]
As shown in FIGS. 3 and 4, the rear side of the flange portion 20 is a locking piece 22 that is fixed to a mounting bracket (not shown) provided on a wall surface of a building as a building structure, as shown in FIGS. The locking piece 22 is formed with a suitable uneven piece 22a for hooking and locking to a wall fixing bracket (not shown) fixed to the wall surface. The back side of the flange portion 20 is not limited to the above-described configuration of the locking piece 22 having the unevenness piece 22a, as long as the structure is fixed to the wall surface of the building. Other configurations are also possible.
[0029]
A step is formed on each front side surface and a part of the bottom portion of the flange portion 20 by, for example, drawing, and a locking portion 24 is integrally formed on each surface. By fitting inside the joining edge of the plate 14, the joining edge of the flange portion 20 and the top plate 12 and the front plate 14 is in the same plane in the assembled state.
Although the step between the locking portion 24 and the flange portion is exaggerated in the drawing, the actual step is approximately 0.5 mm in actual size corresponding to the thickness of the top plate 12 and the front plate 14. Has become.
[0030]
As shown in FIGS. 1 and 2, a pair of mounting holes 28 for fixing the bearing 26 of the winding shaft are opened through the inside and outside of the surface of the side surface portion 18 of the bracket side plate 16. A concave portion 30 is formed around the mounting hole 28 by, for example, drawing, that is, formed in a countersink shape, and a screw B as a fixture is screwed through the mounting hole 28 in FIG. As shown in (1), the screw head fits in the plane of the side surface portion 18 and is not seen from the line of sight La in the plane, so that the appearance is improved.
[0031]
As shown in FIGS. 3 and 4, the bearing 26 has a U-shaped cross section, and has a long slot 32 a formed on both sides for inserting the support bolt B <b> 1. The left and right mounting pieces 34 are formed with a screw hole 36 as a fixing hole into which the screw B is screwed. A concave portion 38 corresponding to the convex portion 31 with respect to the inside of the side surface portion 18 of 30 is formed in a countersink shape by, for example, drawing, thereby ensuring the close contact of the left and right flanges 34 with the inner wall surface of the side surface portion 18.
[0032]
In addition, since the concave portion 38 is positioned by engaging with the convex portion 31 of the side surface portion 18 when the bearing 26 is mounted, the workability of mounting the bearing 26 is also improved.
[0033]
A flange 40 for mounting the wall surface is integrally formed on the rear surface of the top of the top plate 12 so as to be integrally formed, and a hook-shaped engaging portion 41 directed inward is formed integrally with a front edge of the top plate 12. The hook-shaped engaging portion 41 is formed to have a substantially U-shaped cross section, and the hook-shaped piece 42 at the distal end edge is formed upward, and only on both sides of the hook-shaped piece 42, that is, only at the joint position with the bracket side plate 16. As shown in FIG. 3B, a notch is formed to form a notch 42a.
[0034]
On the rear surface of the bottom of the front plate 14, a rim piece 44 having a substantially U-shaped cross section serving as an edge of an opening for raising and lowering the shutter curtain is formed upright. A hook-shaped engaging portion 45 that fits into the hook-shaped engaging portion 41 of the top plate 12 is formed integrally on the upper front edge of the front plate 14 toward the outside. The hook-shaped engaging portion 45 is formed to have a substantially U-shaped cross section, and the hook-shaped piece 46 at the tip edge is formed downward, and only at both ends of the hook-shaped piece 46, that is, only at the joining position with the bracket side plate 16. A notch is formed to form a notch 46a.
The hook-shaped pieces 42 and 46 are formed continuously along substantially the entire length of the top plate 12 and the front plate 14 in the longitudinal direction, so that the front plate 14 can be easily attached to and detached from the top plate 12.
[0035]
In the assembling sequence described above, first, the bracket side plates 16 are fixed to both sides of the upper edge of the building opening. Next, as shown in FIG. 4A, the top plate 12 is placed on the bracket side plate 16. In this state, both ends in the longitudinal direction of the top plate 12 are overlapped with the locking portions 24 formed on each surface inside the flange portion 20. Thereafter, the top plate 12 is fixed to the locking portion 24 at an appropriate position with screws or the like.
[0036]
Next, the hook-shaped piece 46 of the front plate 14 is hooked on the hook-shaped piece 42 of the top plate 12 from below. Then, the bottom of the front plate 14 is lifted with these hook-shaped pieces 42 and 46 as base points, and the position is appropriately fixed with screws or the like, thereby completing the assembly of the shutter case 10 as shown in FIG. I do.
[0037]
In this case, by engaging the hook-shaped engaging portions 41 and 45 (the hook-shaped pieces 42 and 46) with each other, a conventional operation performed by supporting the long front plate 14 with a plurality of workers is performed. Even if this operation is not performed, the front plate 14 can be assembled by one worker only because the front plate 14 can be assembled at a correct mounting position by lifting it up with one hand, and both ends in the longitudinal direction of the front plate 14 are also formed on each surface. It is correctly overlapped on the outside of the part 24.
[0038]
In particular, notches 42a, 46a of a predetermined length formed at both ends in the longitudinal direction of the hook-shaped engaging portions 41, 45, which are the seam-type connecting portions, do not interfere with the bracket side plate 16 without interference. The plate 12 and the front plate 14 can be attached.
[0039]
When the assembly is completed, the top plate 12, the front plate 14, and the flange portion 20 of the bracket side plate 16 are flush with each other. Although the joint portion at the joint portion is naturally seen in a front view, as shown in FIG. 6, there is no joint by the line of sight Lb from the side, and the design is improved.
[0040]
Further, even when performing work inside the shutter case 10 at the time of maintenance inspection or the like, if the screw fixing the front plate 14 is removed, the inside of the shutter case 10 can be easily opened, and the maintenance property can be improved. Will be improved.
[0041]
The top plate 12, the front plate 14, and the bracket side plate 16 in the shutter case 10 are protected by a corrosion-resistant or weather-resistant robust surface finish such as rust-proof coating, so that design and the like can be obtained.
[0042]
In addition, since the screw head does not protrude due to the concave portion 30 around the mounting hole 28 of the bracket side plate 16, the bracket side plate 16 is brought into close contact with the shutter case 10 in a so-called continuous configuration in which the shutter case 10 is installed in a horizontal direction. It can be configured without causing unnecessary gaps between adjacent shutter cases 10.
[0043]
Next, a second embodiment will be described.
FIG. 7 shows a second embodiment in which a cosmetic exterior plate 50 is provided. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
In the second embodiment, instead of the bracket side plate 16 to which the bearing 26 of the first embodiment is attached, a bracket plate 58 having substantially the same configuration without the locking portion 24 is used. The bearing 26 is mounted inside the side surface of the plate 58.
[0044]
In the figure, a decorative exterior plate 50 includes a side surface portion 52 surrounding the entire outside of a bracket plate 58, and a flange portion 54 as a joining margin formed on the outside of the bracket plate 58 and rising inward toward the plate surface. And the upper and lower surfaces of the flange portion 54 are connected to the bracket plate 58 by screws B3.
[0045]
A locking portion 56 is formed on the flange portion 54 so as to be fitted to the inside of the joining edge of the top plate 12 and the front plate 14 with a step formed therebetween, whereby the top plate 12, the front plate 14 and the decorative exterior plate 50 are formed. The joint portion with the flange portion 54 is substantially flush.
[0046]
In the present embodiment, the same effects as described above can be obtained, and the appearance of the screw 26 for fixing the bearing 26 is further improved because it is completely hidden.
[0047]
In addition, the above-mentioned decorative exterior plate 50 may be a pressed product of a steel plate, or may be a durable synthetic resin molded body.
[0048]
Next, a third embodiment will be described.
FIG. 8 shows a third embodiment, which has a side plate 60 having the same configuration as the bracket plate 58 of the second embodiment described above. That is, a bearing (not shown) is attached to the inside of the side surface portion 61, and a flange portion 62 is formed on the edge of the side surface so as to stand on the plate surface as a joining margin. This flange portion 62 is formed flat.
[0049]
At the joining edges of the top plate 12 and the front plate 14, locking portions 12 a and 14 a are formed with steps by drawing or the like. The engaging portions 12a and 14a are fitted inside the flange portion 62, so that the joint portion between the top plate 12, the front plate 14, and the flange portion 62 of the side plate 60 is substantially flush.
With such a configuration, the same effects as those of the first and second embodiments can be obtained.
It should be noted that the mating side to be joined is not limited to the side plate 60 but may be the decorative exterior plate 50 described above. In the case of the decorative exterior plate 50 as well, the configuration may be such that the locking portion 56 is not provided, and it is configured to fit inside the flange portion 54.
[0050]
In each of the above-described embodiments, an example has been described in which a screw is used as a fixing tool. However, the fixing tool may be configured with a bolt or a rivet, that is, a fixing tool having a head. Then, the same effect as above can be obtained.
[0051]
【The invention's effect】
As described above, according to the structure of the shutter case of the present invention, at the joint between the top plate, the front plate, and the side plate, the position of the joint margin and the joint edge is visually checked by the locking portion. In other words, it is possible to obtain the effect of improving the appearance by not being viewed from the side.
[0052]
Further, according to the present invention, since the side plate or the bracket side plate is provided with the recess around the mounting hole for mounting the bearing, the fixture head does not protrude from the plate surface, and the appearance can be improved. .
[0053]
Furthermore, the convexity of the inner surface corresponding to the concave portion of the mounting hole and the concave portion formed around the fixing hole of the bearing improve the adhesion between the inner surface and the bearing, and the positioning at the time of mounting the bearing. It becomes possible, and the mounting workability is improved.
[0054]
In addition, since the fixing member head does not protrude due to the concave portion around the mounting hole, when the shutter case is installed in a so-called continuous configuration in which the shutter case is arranged in the lateral direction, the side plate or the bracket side plate can be installed in close contact, so that the adjacent The effect that the shutter case can be configured without generating an unnecessary gap between the shutter cases can be obtained.
[0055]
Further, according to the present invention, the workability of connecting the front plate to the top plate can be improved by adopting a structure in which the top plate and the front plate are joined together by a seam joint comprising hook-shaped engagement portions. Can perform the work of attaching and detaching the long front plate, the labor and labor can be saved, and the workability and maintainability can be improved.
[0056]
Also, the top plate and the front plate can be attached without interfering with the side plates by notches of a predetermined length formed at both ends in the longitudinal direction of each hook-shaped engaging portion, which is a seam joint portion. It becomes possible.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a mounting relationship between a bracket side plate and a bearing according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the bracket side plate.
FIG. 3A is an exploded perspective view showing a connection relationship between a bracket side plate, a top plate, and a front plate, and FIG. 3B is a partially enlarged perspective view of the top plate.
FIGS. 4A and 4B are perspective views showing a procedure for assembling a top plate and a front plate to a bracket side plate.
FIG. 5 is a sectional view taken along line AA of FIG. 2;
FIG. 6 is a sectional view taken along line BB of FIG. 4 (b).
FIG. 7 is a cross-sectional view in which a cosmetic exterior plate according to a second embodiment of the present invention is arranged.
FIG. 8 is a partial sectional view showing a third embodiment of the present invention.
FIG. 9 is a perspective view of a conventional shutter case.
FIG. 10 is a sectional view of the shutter case.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Shutter case 12 ... Top plate 12a, 14a, 24, 56 ... Lock part 14 ... Front plate 16 ... Side plate (bracket side plate)
18, 52 ... side surface part 20, 54, 62 ... joining margin (flange part)
26 bearing 28 mounting hole 30 concave portion 31 convex portion 36 fixing hole (screw hole)
38 concave portions 41, 45 hook-shaped engaging portions 42a, 46a cutout portion 50 side plate (decorative exterior plate)
60 ... side plate

Claims

At least a top plate, a front plate and left and right side plates are provided to form a substantially rectangular box, and a shutter curtain can be wound and housed therein, and a shutter case structure disposed at an edge of a building structure opening. ,
A step is provided on one of the joining margin formed at the edge of the side plate and formed upright with respect to the plate surface, and the joining edge of each of the left and right edges of the top plate and the front plate, and a locking portion is provided. A shutter case structure, wherein the joining edge of the top plate and the front plate is connected flush with the joining margin of the side plate edge via the locking portion.

At least a top plate, a front plate and left and right side plates are provided to form a substantially rectangular box, and a shutter curtain can be wound and housed therein, and a shutter case structure disposed at an edge of a building structure opening. ,
The side plate is formed of a bracket side plate having a bearing for supporting an end of a winding shaft of the shutter curtain inside, and a step is formed at a joining margin formed at an edge of the bracket side plate and formed upright with respect to the plate surface. Forming a locking portion connected to the inner surface of the joining edge of each of the left and right edges of the top plate and the front plate, and the joining edge of the top plate and the front plate being connected to the bracket via the locking portion. A shutter case structure characterized in that it is connected flush with a joint margin of a side plate edge.

At least a top plate, a front plate and left and right side plates are provided to form a substantially rectangular box, and a shutter curtain can be wound and housed therein, and a shutter case structure disposed at an edge of a building structure opening. ,
The side plate comprises a decorative exterior plate covering an outer surface of a bracket plate provided with a bearing for supporting an end of a winding shaft of the shutter curtain inside, and a plate formed on an edge of the decorative exterior plate. A step is provided in a joining margin formed upright with respect to the surface, and a locking portion connected to the inner surface of the bonding edge of each of the left and right edges of the top plate and the front plate is formed. The structure of the shutter case, wherein a joining edge of the top plate and the front plate is connected flush with a joining margin of the edge of the decorative exterior plate.

A bearing attached to the inside of the side plate and supporting an end of a winding shaft of the shutter curtain is attached by a fixing tool penetrating from the outside of the side plate to a plurality of attachment holes formed therein. Around the mounting hole, a fixing part head is formed with a concave portion flush with the outer surface of the side plate, and a convex portion protruding from the inner surface of the side plate is formed, around the fixing hole of the bearing. 2. The shutter case structure according to claim 1, wherein a concave portion is formed to fit into said convex portion.

A bearing attached to the inside of the bracket side plate is attached from the outside of the bracket side plate by fixtures respectively penetrating a plurality of attachment holes formed therein, and a fixture head is provided around the attachment hole. Forming a concave portion flush with the outer surface of the bracket side plate, forming a convex portion protruding from the inner surface of the bracket side plate, and forming a concave portion fitted around the fixing hole of the bearing into the convex portion. 3. The structure of the shutter case according to claim 2, wherein the shutter case is formed.

A bearing attached to the inside of the bracket plate is attached from outside of the bracket plate by fixtures penetrating through a plurality of attachment holes formed therein, and a fixture head is provided around the attachment hole. Forming a concave portion flush with the outer surface of the bracket plate, forming a convex portion protruding from the inner surface of the bracket plate, and forming a concave portion fitted around the fixing hole around the fixing hole of the bearing. 4. The structure of the shutter case according to claim 3, wherein the shutter case is formed.

At the front edge of the top plate, a hook-shaped engaging portion extending in the rear edge direction is formed, and at the upper edge of the front plate, a hook-shaped engaging portion extending forward is formed. The shutter case structure according to claim 1, wherein the shutter case has a structure in which the hook-shaped engaging portions are connected to each other in a splicing manner.

At the front edge of the top plate, a hook-shaped engaging portion extending in the rear edge direction is formed, and at the upper edge of the front plate, a hook-shaped engaging portion extending forward is formed. 3. A structure in which hook-shaped engaging portions are connected to each other in a splicing manner, and notches having a predetermined length are formed at both ends in the longitudinal direction of each hook-shaped engaging portion. , 3, 5, 6, the shutter case described in any one of the above.