JP3941165B2

JP3941165B2 - lighting equipment

Info

Publication number: JP3941165B2
Application number: JP17472297A
Authority: JP
Inventors: 崇文大石; 吉見遠藤; 誉高井; 巌鳥羽; 秀幸金澤; 正直稗田
Original assignee: Toshiba Lighting and Technology Corp
Current assignee: Toshiba Lighting and Technology Corp
Priority date: 1997-06-30
Filing date: 1997-06-30
Publication date: 2007-07-04
Anticipated expiration: 2017-06-30
Also published as: JPH1125728A

Description

【０００１】
【発明の属する技術分野】
本発明は、下面が開放された樋状の反射板の長手方向両端部外面に補強金具を夫々固定してなる反射体を備えた照明器具に関する。
【０００２】
【従来の技術】
直管形蛍光ランプを光源とする天井埋め込み形照明器具等が備える下面開放形の反射板は、一般に板金製であり、前記ランプの長さに応じて長いため、ねじれを生じる恐れがある。特に、複数の照明器具を長手方向に並べて互いに連結して構成される連結形照明装置としての使用において、反射体が備える樋状の反射板の長手方向の開放端を塞いだ反射端板を取り除いて、隣接する反射板相互を連結する場合には、反射板相互の連結部において反射端板がないことにより反射板の長手方向の端部の強度が低下するから、前記ねじれを生じる可能性が高まる。そこで、こうした反射板のねじれを抑制するために補強金具が使用されている。
【０００３】
この補強金具は、反射板の幅方向の断面形状と略同形であって、反射板の長手方向両端部外面に幅方向に沿って配置され、その多数個所を反射板に対しスポット溶接することにより固定されている。
【０００４】
又、連結形照明装置としての使用であっても、そうではなく単独の照明器具としての使用であっても、器具全体の長手方向両端には夫々反射板の開放端を閉鎖する板金製の反射端板が取付けられるが、この端板の反射板への固定もスポット溶接により行われている。
【０００５】
【発明が解決しようとする課題】
しかし、前記のようにスポット溶接で補強金具を反射板に固定する反射体は、溶接跡が露出するために、反射板をカラー鋼板で作ることができないという問題があるとともに、前記溶接跡を隠すために反射体全体を塗装する後処理を必要としている。又、ねじやリベット等の固定部品を使用すれば、溶接によることなく補強金具を反射板に固定できるが、その場合、部品点数が増えて製作が面倒になるとともに、多数の固定部品が視認されて反射板の体裁が損なわれる。
【０００６】
したがって、本発明が解決しようとする第１の課題は、固定部品を使用したり溶接止めによることなく補強金具を反射板に固定でき、反射板をカラー鋼板製とできる照明器具を得ることにある。
【０００７】
又、本発明が解決しようとする第２の課題は、反射体が有する反射端板又は連結形照明装置として使用する場合に隣接する反射板相互の連結に採用される連結板の反射板への固定を、固定部品を用いたり溶接止めによることなく行って前記第１の課題を解決できる照明器具を得ることにある。
【０００８】
【課題を解決するための手段】
本発明は、幅方向両側に断面逆Ｕ字状に折り返された上向き縁部を夫々有して下面が開放された樋状をなす反射板の長手方向両端部が、反射端板または連結される他の照明器具の反射体に備えられて前記反射板と同形状の反射板を取付け可能に開放されており、この両端部外面に、前記幅方向に沿って夫々補強金具が固定された反射体を具備する照明器具を前提とする。
【０００９】
そして、前記第１の課題を解決するために、請求項１の発明は、前記上向き縁部が前記反射板の反射側壁と対向して折り返された折り返し片を有し、この折り返し片の前記反射板の長手方向両端部の下端に夫々開放して形成された切欠溝に、前記補強金具の長手方向両端に折り曲げて形成された係合端部を夫々引っ掛けて、前記反射板の長手方向両端部外面に沿うように夫々取付けられるとともに、前記反射板の長手方向両端部からこの端部外面に沿って折り曲げられた折り曲げ片と前記反射板の長手方向の端部とで前記補強金具の中間部を挟持して、前記補強金具を前記反射板の長手方向両端部外面に固定したことを特徴とする。
【００１０】
この請求項１の発明において、樋状の反射板を補強する補強金具を反射板に固定するには、まず、補強金具がその両端に有する係合端部を、夫々反射板が有した断面逆Ｕ字状の上向き縁部の折り返し片に形成された切欠溝に下側から引っ掛ける。それにより、補強金具を反射板の長手方向の端部外面に幅方向に沿って添えるように配置する。前記引っ掛りにより、反射板の長手方向への補強金具の動き止めと、補強金具両端部の上方向への動き止めとがなされる。次に、反射板と一体の折り曲げ片を反射板の長手方向の端部外面に沿うように折り曲げて、これら端部と折り曲げ片との間で補強板の中間部を挟む。それにより、補強金具中間部の上方向への動き止めをして補強金具全体を反射板の長手方向の端部外面に密着させる。
【００１１】
以上のように補強金具の両端部を反射板の上向き縁部に設けた切欠部に引っ掛けるとともに、補強金具の中間部を反射板の折り曲げ片を用いてこれと反射板の端部との間に挟持することにより、ねじ等の固定部品を用いたり溶接止めによることなく補強金具を反射板の外面に固定できる。
【００１２】
前記第２の課題を解決するために、請求項１に従属する請求項２の発明は、前記補強金具の幅方向一側部に弾性変形可能な押え片を一体に設け、この押え片と前記反射板の長手方向の端部との間に、前記反射板の長手方向の開放端を塞いで設けられる反射端板の差込片又は隣接する反射板相互の連結を行う連結板が挿入される入口を形成し、前記押え片とこれに対向した前記反射板の長手方向の端部とでこれらの間に挿入された前記差込片又は前記連結板を固定したことを特徴とする。
【００１３】
この請求項２の発明は請求項１の発明に従属するので、前記第１の課題を解決できることに加えて、前記補強金具を利用して、隣接する他の照明器具の反射板との連結を行う連結板又は反射端板の差込片を、固定部品を用いたり溶接止めによることなく補強金具を備えた反射板に固定できる。すなわち、補強金具は反射板の長手方向の端部との間に入口を形成する押え片を有しているから、前記入口から挿入された前記連結板又は差込片を、補強金具の押え片とこれが重なった反射板の長手方向の端部との間に挟んで固定でき、その固定に際して固定部品を用いたり溶接を必要とすることがない。
【００１４】
【発明の実施の形態】
以下、図１〜図１２を参照して本発明の第１の実施の形態を説明する。
【００１５】
連結形照明装置の構成を断面で示す図１中符号１は天井であり、１ａは天井１の開口された器具取付け孔である。複数の照明器具２をその長手方向に連結して構成される連結形照明装置全体の長さに対応して器具取付け孔１ａは長尺となっている。天井裏には器具取付け孔１ａに臨んで所定間隔で多数本の吊りボルト３が配置されている。これらのボルト３の下端部にはワッシャ４が嵌合されるとともにナット５が螺合され、このナット５の締上げにより照明器具２が天井１に埋め込んで装着されるようになっている。
【００１６】
前記連結形照明装置は、直線状に連続して並べられる複数の照明器具２と、隣接する照明器具２相互を連結する中央連結板６と、同様な連結をなす一対の側部連結板７、前記照明装置の長手方向両端に設けられるカラー鋼板製の反射端板８とを備える。
【００１７】
各照明器具２は、金属製の器具本体１１と、複数の金属製固定金具１２（図１に１個のみ図示）と、金属製の反射体１３と、光源をなす直管形蛍光ランプ１４とを備えている。そして、反射体１３は、下面開放形反射板１５と、この反射板１５の長手方向両端部外面に夫々固定された補強金具１６とから形成されている。
【００１８】
器具本体１１は、下面が開放された細長い箱構造をなし、その内部には図示しないが放電灯安定器等の点灯装置、端子台、その他の必要な各種の電気部品が収容されている。更に、器具本体１１の長手方向両端には夫々ソケット取付け金具１７が取付けられている。第１の実施の形態に係る照明器具２は２灯用であるので、それに合わせて、器具本体１１の両側壁１１ａの下端から幅方向外側に夫々突出する一対のソケットホルダー部１７ａを有したソケット取付け金具１７が使用されているが、本発明は１灯式又は２灯以上の多灯式の照明器具に適用でき、それに適合する種類のソケット取付け金具１７が採用される。ソケットホルダー部１７ａには前記ランプ１４が取外し可能に装着されるランプソケット１８が下向きに突出して設けられている。
【００１９】
器具本体１１の相対向する側壁１１ａの長手方向両端部には、縦長なスリットからなる連結孔１９が夫々形成され、また、器具本体１１の上壁１１ｂにはその長手方向両端部等に吊りボルト導入孔２０が開けられている。固定金具１２は、それが有した係合爪１２ａを器具本体１１の内側から連結孔１９に引っ掛けることにより、器具本体１１にこの本体１１を幅方向に横断して連結されている。この固定金具１２の長手方向両端部には夫々天井接触部１２ｂが折り曲げられている。
【００２０】
固定金具１２が連結された器具本体１１は次の手順で天井１に埋め込んで装着される。まず、固定金具１２の天井接触部１２ｂが器具取付け孔１ａの幅方向両側の孔縁下面に当るまで、器具本体１１及び固定金具１２を器具取付け孔１ａに挿入するとともに、その際に吊りボルト導入孔２０の夫々に天井裏の吊りボルト３の下端部を夫々導入する。次に、各ボルト３の下端部にワッシャ４を嵌合するとともにナット５を螺合して締め上げる。それによって、天井接触部１２ｂを器具取付け孔１ａの縁部下面に強く密着させるとともに、器具本体１１を複数本の吊りボルト３に吊持して天井１に装着できる。
【００２１】
前記反射体１３が備える反射板１５は一枚のカラー鋼板を折り曲げてなるものであって、図１、図２、図４、及び図８等に示されるように略水平な平板状をなす反射天井壁１５ａの幅方向両側から斜め下方に折れ曲がる反射側壁１５ｂを設けて下面が開放された樋状をなしていて、その内面は反射面となっている。更に、反射板１５の幅方向両側には、反射側壁１５ｂの下縁に連なって水平縁部２１を介して断面逆Ｕ字状をなす上向き縁部２２が一体に形成されている。したがって、水平縁部２１と上向き縁部２２とは概ね断面Ｌ字状の張り出し開口縁を形成し、この開口縁は前記器具取付け孔１ａの孔縁を下側から覆い隠すようになっている。上向き縁部２２は折り返し片２２ａを有している。この折り返し片２２ａは水平縁部２１の上方に離れており、その長手方向両端部には図８（Ｄ）（Ｅ）に示される切欠溝２３が夫々形成されている。切欠溝２３は、浅く、かつ、水平縁部２１側に開放されている。
【００２２】
反射天井壁１５ａの長手方向両端部には、図８（Ｂ）（Ｃ）等に示されるようにソケット通し部２４が夫々切り欠いて形成されているとともに、この通し部２４内に突出される折り曲げ片２５が設けられている。ソケット通し部２４は、照明器具２が２灯式であるので、それに合わせて一対設けられているとともに、夫々のソケット通し部２４について例えば一対の折り曲げ片２５が設けられている。折り曲げ片２５は、ソケット通し部２４の縁部外面に重なるように折り曲げられてソケット通し部２４の外部に配置されるものであり、それによって同時に、ソケット通し部２４が適正な大きさの矩形形状となるようにしてある。
【００２３】
前記樋状をなす反射板１５のねじれを抑制するために設けられる補強金具１６は、一枚の金属板を図９（Ｂ）等に示されるように反射板１５の幅方向の断面形状と略同形の形状に折り曲げて形成されていて、反射天井壁添接部１６ａと、この長手方向両端から折り曲げられた反射側壁添接部１６ｂと、これら添接部１６ｂから夫々折り曲げられた水平縁部添接部１６ｃと、これら添接部１６ｃから夫々折り曲げられた係合端部１６ｄとから形成されている。係合端部１６ｄは水平縁部添接部１６ｃと断面Ｖ字形状を作るように折り曲げられており、この端部１６ｄはその曲げ方向に弾性変形が可能である。
【００２４】
この補強金具１６には係合端部１６ｄ以外の部分にわたって連続する強度向上用の第１リブ３１、これよりも短い第２リブ３２とが夫々形成されている。そして、図９（Ａ）等に示されるように反射天井壁添接部１６ａの幅方向一端側は、反射板１５の長手方向の端部の凹凸形状に対応して同様な凹凸形状をなしている。すなわち、３３はソケット通し部２４に対応する一対の凹みであり、３４はこれら凹み３３間に形成された補助凹みであり、３５は各凹み３３、３４の両側に位置される凸板部である。なお、補助凹み３４を省略して、その部分を盲板状としてもよいが、この凹み３４を設けることにより、中央連結板６又は反射端板８の後述する差込片の挿入抵抗を小さくして組立てを容易化できるようにしてある。
【００２５】
各凸板部３３及び反射側壁添接部１６ｂと水平縁部添接部１６ｃには、図５〜図７等に示されるように少し立ち上がる根元部３７を設けて夫々押え片３８が一体に延設されている。これらの押え片３８は、弾性変形可能であって、その先端部に斜めに折り曲げられた導入片３８ａを有するとともに、これら導入片３８ａと根元部３７との間に位置して半球状のストッパ凸部３９を有している。
【００２６】
前記構成の補強金具１６は、反射板１５の長手方向両端部外面に反射板１５の幅方向に沿って夫々固定されている。これら補強金具１６の固定は次の手順で行われる。まず、夫々の係合端部１６ｄを水平縁部添接部１６ｃ側に近づくように弾性変形させながら、反射板１５の上向き縁部２２の内側に入れて折り返し片２２ａの切欠溝２３に係合させる。
【００２７】
それにより、係合端部１６ｄが若干撓んだ状態で切欠溝２３に引っ掛かるとともに、その復元しようとする弾性力で、反射板１５の長手方向の端部外面にこの反射板１５の幅方向に沿うように配置された補強金具１６全体を前記端部外面に接するように保持できる。しかも、係合端部１６ｄと切欠溝２３の長さは略等しいから、これらの長手方向に沿う引っ掛かりによる位置決めで、反射板１５の長手方向に沿って補強金具１６が不用意に動くことを防止できる。
【００２８】
しかも、こうした引っ掛りにより保持された補強金具１６の凹み３３が、反射板１５のソケット通し部２４に丁度連通されると同時に、反射天井壁添接部１６ａに設けられた凸板部３５が、反射天井壁１５ａの長手方向の端部におけるソケット通し部２４の両側の板部上に重なるとともに、反射側壁添接部１６ｂに設けられた凸板部３５が反射側壁１５ｂの長手方向の端部上に重なり、同様に、水平縁部添接部１６ｃに設けられた凸板部３５が水平縁部２１の長手方向の端部上に重なる。それにより、各凸板部３５の押え片３８の弾性力でストッパ凸部３９が反射板１５の長手方向の端部外面に押付けられるとともに、この長手方向端部との間に押え片３８の導入片３８ａとの間にストッパ凸部３９に向けて次第に狭くなる入口４０が形成される。
【００２９】
次に、ソケット通し部２４に突出されている各折り曲げ片２５を、ソケット通し部２４に隣接している凸板部３５上に重なるように夫々折り曲げてかしめる。それにより、これら凸板部３５、言い換えれば、補強金具１６の中間部を、反射天井壁１５ａの長手方向端部と折り曲げ片２５との間に挟んで、補強金具１６の反射板１５への密着性をより高めるとともに、補強金具１６が反射板１５から上方に不用意に動くことを防止できる。図２、図３、及び図５等に折り曲げ片２５が補強金具１６を固定した状態が示されている。
【００３０】
すなわち、以上の手順により補強金具１６を反射板１５の端部外面に固定することができる。なお、前記手順に代えて、予め折り曲げ片２５を反射天井壁１５ａに対して直角に起き上がった状態に曲げて置いてから、既述の手順を実行しても良い。
【００３１】
前記手順で組立てられた反射体１３は、前記固定金具１２の下側に配置されるように器具取付け孔１ａに挿入された後、反射板１５の反射天井壁１５ａを上方に貫通して固定金具１２に設けられた図示しないねじ受け部に化粧ねじ４１を螺合することにより、器具取付け孔１ａ及びその孔縁を覆い隠して天井１に取付けられる。そして、この取付けにより、前記各ランプソケット１８が反射板１５のソケット通し部２４を下方に挿通して反射体１３の内側に配置されるものであり、これらのソケット１８を用いて反射体１３内に蛍光ランプ１４が取付けられる。
【００３２】
次に、隣接した各照明器具２相互を連結する金属製の各連結板６、７について説明する。図１０等に示されるように中央連結板６は、略短冊状をなすものであって、その長手方向両端部に幅方向両側から夫々切り欠いた凹部４５を有しているとともに、この近傍に位置して幅方向に延びるビード４６を有している。この中央連結板６は、その幅方向半分を隣接した照明器具２の内の一方に固定するとともに、残る幅方向半分を他方の照明器具２に固定することにより、隣接した２つの照明器具２の反射板１５の反射天井壁１５ａ相互を連結する。
【００３３】
この連結において中央連結板６は前記入口４０から反射天井壁１５ａの端部とこれに重なった凸板部３５の押え片３８との間に、押え片３８の弾性変形を伴いながら挿着される。この時、凹部４５はストッパ凸部３９に嵌合されるから、過大な挿入力を要しない。しかも、各ビード４６が補助凹み３４の相対向する側縁に係合されるので、その引っ掛かりにより、中央連結板６が長手方向、言い換えれば、反射体１３の幅方向への不用意な位置ずれを防止して隣接した反射板１５相互の連結強度を高めることができる。
【００３４】
一対の側部連結板７は、図１１に示されるように天井壁重なり部７ａと、この一端から下方に折り曲げられた側壁重なり部７ｂと、この下端から折り曲げられたＬ字状の張り出し開口縁重なり部７ｃとを有している。天井重なり部７ａにはその幅方向両側から凹部４７が夫々設けられているとともに、各重なり部７ａ〜７ｃの夫々にはその幅方向両端部に位置して夫々長孔からなる係合孔４８が開けられ、更に、前記重なり部７ｃにはその幅方向中央部から側壁重なり部７ｂに向けて突出するストッパ突片４９が折り曲げられている。
【００３５】
これら側部連結板７は、その幅方向半分を隣接した照明器具２の内の一方に固定するとともに、残る幅方向半分を他方の照明器具２に固定することにより、隣接した２つの照明器具２の反射板１５相互を連結する。
【００３６】
この連結において側部連結板７は、前記入口４０から反射天井壁１５ａにおける反射側壁１５ｂ側の端部とこれに重なった凸板部３５の押え片３８との間、反射側壁１５ｂ及び水平縁部２１の長手方向端部とこれに重なった凸板部３５の押え片３８との間に、夫々押え片３８の弾性変形を伴いながら挿着される。この時、凹部４７はストッパ凸部３９に嵌合される。又、係合孔４８は夫々前記押え片３８のストッパ凸部３９に嵌合される。この状態は図６に代表して示されている。したがって、これらの引っ掛りにより、隣接した反射板１５相互の長手方向についての連結強度を高めることができる。しかも、この時ストッパ突片４９は図８（Ｄ）に示す切り欠き５０に嵌合し、それにより、側部連結板７の挿入方向の位置決めがなされる。
【００３７】
なお、前記のように反射板１５相互が連結されて隣接する照明器具２においては、その器具本体１１の長手方向の端部相互も図示しない適当な連結構造を介して連結されるものである。
【００３８】
又、前記照明装置の長手方向両端に位置される照明器具２の非連結側の端面に位置して反射体１３の開放された端面を塞ぐ反射端板８は、カラー鋼板を一体に折り曲げて図４及び図１２等に示されるように形成されている。すなわち、前記開放端面と同様な形状をなす端板主部５１の上縁及び傾斜した側縁からは夫々１以上の差込片５２及び５３が折り曲げられているとともに、前記張り出し開口縁に対応して端板主部５１の下縁を外側に折り曲げて形成された端板張り出し開口縁５４の両端部にも夫々差込片５５が折り曲げられている。これら各差込片５２、５３、５５には夫々長孔からなる係合孔５６が開けられている。更に、端板主部５１には、その上縁から折り曲げられた４つの差込片５２のうちの中間に位置された２個の差込片５２の根元部に対向する反射板支え５７が、外面から内面に向けて押し出されるように突出されている。以上の構成の反射端板８の内面（前記開口縁５４の張り出し方向とは反対側の面）は反射面となっている。
【００３９】
この反射端板８は、反射天井壁１５ａの端部外面に各差込片５２が重なり、反射側壁１５ｂの端部外面に各差込片５３が重なり、かつ水平縁部２１の端部外面に各差込片５５が重なるように、これら差込片５２、５３、５５を、前記入口４０から反射板１５の長手方向の端部とこれに重なった凸板部３５の押え片３８との間に、夫々押え片３８の弾性変形を伴いながら挿入することにより、器具本体１１にその開放された端面を塞いで固定される。この時、係合孔５６は夫々前記押え片３８のストッパ凸部３９に嵌合される。この状態は図７に代表して示されている。したがって、これらの引っ掛りにより、器具本体１１への反射端板８の連結強度を高めることができる。しかも、このような取付けに伴って、反射天井壁１５ａの長手方向の端縁１５ａ１が、図７に示されるように押え片３８と反射板支え５７との間にこれらに挟まれるように挿入されて反射板支え５７により下側から支えられる。そのため、反射天井壁１５ａの長手方向の端部においてその幅方向中央部が最も下がるようにたるむことを防止できる。
【００４０】
そして、前記構成の連結形照明装置をなす各照明器具２が備える反射体１３において、その反射板１５の外面に補強金具１６を固定するには、既述のように補強金具１６がその両端に有する係合端部１６ｄを、夫々反射板１５が備える断面逆Ｕ字状の上向き縁部２２の折り返し片２２ａに形成された切欠溝２３に下側から引っ掛けてから、反射板１５と一体の折り曲げ片２５を反射板１５の長手方向の端部外面に沿うように折り曲げて、これら端部と折り曲げ片２５との間で補強金具１６の中間部をかしめるように挟んで、補強金具１６全体を反射板１５の長手方向の端部外面に密着させればよい。このようにねじ等の固定部品を用いたり溶接止めによることなく補強金具１６を反射板１５の外面に固定できる。そのため、補強金具１６が固定される反射板１５をカラー鋼板製とできる。
【００４１】
しかも、補強金具１６は反射板１５の長手方向の端部との間に入口４０を形成する押え片３８を有しているから、隣接する照明器具２の反射体１３同志の連結を行う連結板６、７、又は連結形照明装置の端部に位置する照明器具２に取付けられる反射端板８の差込片５２、５３、５５を、前記入口４０から挿入することにより、これらを補強金具１６の押え片３８とこれが重なった反射板１５の長手方向の端部との間に挟んで固定できるから、この固定に際してもねじ等の固定部品を用いたり溶接を必要とすることがない。そのため、反射板１５及び反射端板８をカラー鋼板製とできる。
【００４２】
そして、このようにカラー鋼板を採用できるので、反射体１３の組立て後、又はこの反射体１３に反射端板８を組み付けた後に、塗装作業を必要とすることがないので、製造性がよく安価で、かつ反射特性にばらつきがない高品質な器具を作ることができるとともに、ねじ等の固定部品が多数露出する場合のように下面開放型の反射体１３の体裁、ひいてはこの反射体１３を備える器具全体の体裁が損なわれることもない。
【００４３】
なお、前記第１の実施の形態は連結形照明装置に使用される照明器具に適用した例であるが、本発明は、図１３に示される非連結型の照明器具にも適用できる。この第２の実施の形態において、反射体１３は、下面が開放された反射板１５の長手方向両端部外面に夫々補強金具１６を固定するとともに、反射板１５の長手方向両端の開放された端面を塞いで反射端板８を夫々固定して形成されている。この第２の実施の形態においても本発明の課題を前記第１の実施の形態と同様に解決できる。なお、図１３に示した第２の実施の形態は基本的には前記第１の実施の形態と同様な構成であるので、同様構成部分には前記第１の実施の形態と同じ符号を付してある。
【００４４】
又、前記各実施の形態は、ソケット通し部２４を打ち抜く部分の板部を利用して折り曲げ片２５を設けたから、反射板１５の材料取りが良いとともに、折り曲げ片２５を折り曲げた跡が反射板１５の体裁を損なわない点で優れている。しかし、これに限らず本発明においては、反射板１５の端面から長手方向に延出して折り曲げ片２５を設けてもよく、或いは折り曲げた跡が溝や孔となって反射板１５の端部に残るように折り曲げ片２５を設けても良い。
【００４５】
又、本発明は前記各実施の形態に係る天井埋め込み形の照明器具に拘らず、天井直付け形の照明器具にも適用できる。
【００４６】
【発明の効果】
本発明は、以上説明したような形態で実施され、以下に記載されるような効果を奏する。
【００４７】
請求項１に記載の発明によれば、反射体の体裁を損なうねじ等の固定部品を使用したり、反射体の組立て後に塗装を要する溶接止めによることなく、補強金具を反射板の外面に固定できるので、補強金具が固定される反射板をカラー鋼板製とすることができる。
【００４８】
請求項１に従属する請求項２に記載の発明によれば、補強金具の押え片と反射板の長手方向の端部との間に形成された入口を通して挿入される連結板又は反射端板の差込片を、固定部品を用いたり溶接を必要とすることなく、前記押え片と反射板の長手方向の端部との間に挟んで固定でき、それにより、反射板をカラー鋼板製とすることができる。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態に係る連結形照明装置の構成を示す断面図。
【図２】第１の実施の形態に係る連結形照明装置の連結部回りの構成を分解して示す斜視図。
【図３】第１の実施の形態に係る連結形照明装置が備える反射体の長手方向一端部の構成を示す斜視図。
【図４】第１の実施の形態に係る連結形照明装置が備える反射体の長手方向一端部の構成を分解して示す斜視図。
【図５】図２中Ｚ−Ｚ線に沿って示す断面図。
【図６】連結板が反射板の端部に固定された状態を図２中Ｙ−Ｙ線に沿って示す断面図。
【図７】反射端板が反射板の端部に固定された状態を図２中Ｙ−Ｙ線に沿って示す断面図。
【図８】（Ａ）は第１の実施の形態に係る連結形照明装置が備える反射板の端部の構成を示す側面図。
（Ｂ）は図８（Ａ）の反射板端部を示す平面図。
（Ｃ）は図８（Ａ）の反射板端部を端面方向から見て示す図。
（Ｄ）は図８（Ｂ）中Ｘ−Ｘ線に沿って示す断面図。
（Ｅ）は図８（Ｄ）中Ｗ−Ｗ線に沿って示す断面図。
【図９】（Ａ）は第１の実施の形態に係る連結形照明装置が備える補強金具の構成を示す平面図。
（Ｂ）は図９（Ａ）の補強金具を示す正面図。
（Ｃ）は図９（Ａ）の補強金具を示す側面図。
【図１０】第１の実施の形態に係る連結形照明装置が備える中央連結板の構成を示す斜視図。
【図１１】第１の実施の形態に係る連結形照明装置が備える側部央連結板の構成を示す斜視図。
【図１２】（Ａ）は第１の実施の形態に係る連結形照明装置が備える反射端板の一部の構成を示す平面図。
（Ｂ）は図１２（Ａ）の反射端板の一部の構成を示す正面図。
（Ｃ）は第１の実施の形態に係る連結形照明装置が備える反射端板全体の構成を示す側面図。
【図１３】本発明の第２の実施の形態に係る照明器具の構成を示す斜視図。
【符号の説明】
２…照明器具、６…中央連結板、７…側部連結板、８…反射端板、１３…反射体、１５…反射板、１５ｂ…反射側壁、１６…補強金具、１６ｄ…係合端部、２２…上向き縁部、２２ａ…折り返し片、２３…切欠溝、２５…折り曲げ片、３８…押え片、４０…入口、５２、５３、５５…差込片。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a luminaire including a reflector formed by fixing reinforcing metal fittings to the outer surfaces of both ends in the longitudinal direction of a bowl-shaped reflector having an open bottom surface.
[0002]
[Prior art]
The open-bottomed reflector provided in a ceiling-embedded luminaire using a straight tube fluorescent lamp as a light source is generally made of sheet metal and is long depending on the length of the lamp, and thus may be twisted. In particular, in the use as a connected illuminating device configured by connecting a plurality of lighting fixtures in the longitudinal direction, the reflective end plate covering the open end in the longitudinal direction of the bowl-shaped reflecting plate provided in the reflector is removed. In the case where adjacent reflectors are connected to each other, there is no reflection end plate in the connection part between the reflection plates, and the strength of the end portions in the longitudinal direction of the reflection plate is reduced. Rise. Therefore, reinforcing metal fittings are used to suppress such twisting of the reflecting plate.
[0003]
This reinforcing metal fitting is substantially the same shape as the cross-sectional shape in the width direction of the reflector, and is arranged along the width direction on the outer surface of both ends in the longitudinal direction of the reflector. It is fixed.
[0004]
In addition, whether it is used as a connected lighting device or as a single lighting device, it is a reflection made of sheet metal that closes the open end of the reflecting plate at both ends in the longitudinal direction of the entire device. An end plate is attached, and the end plate is fixed to the reflecting plate by spot welding.
[0005]
[Problems to be solved by the invention]
However, as described above, the reflector that fixes the reinforcing bracket to the reflector by spot welding has a problem that the reflector cannot be made of a color steel plate because the weld trace is exposed, and the weld trace is hidden. This requires post-treatment to coat the entire reflector. If fixing parts such as screws and rivets are used, the reinforcing bracket can be fixed to the reflector without welding. In this case, the number of parts increases, making the production cumbersome, and many fixed parts are visually recognized. Thus, the appearance of the reflector is impaired.
[0006]
Therefore, the first problem to be solved by the present invention is to obtain a lighting fixture capable of fixing a reinforcing bracket to a reflector without using a fixing part or by welding, and making the reflector made of a color steel plate. .
[0007]
In addition, the second problem to be solved by the present invention is that the connecting plate used for connecting the adjacent reflecting plates to the reflecting plate when used as a reflecting end plate or a connecting type lighting device of the reflector. An object of the present invention is to obtain a lighting fixture that can solve the first problem by performing fixing without using a fixing part or by welding.
[0008]
[Means for Solving the Problems]
The present invention has an inverted U-shaped cross section on both sides in the width direction. Folded Both ends in the longitudinal direction of a reflecting plate having a bowl shape with an upward edge and an open bottom surface Is provided in the reflector of the reflecting end plate or other lighting fixture to be connected, and is open so that a reflecting plate having the same shape as the reflecting plate can be attached. A luminaire is provided on the outer surface, which includes reflectors each having a reinforcing metal fixture fixed along the width direction.
[0009]
In order to solve the first problem, the invention of claim 1 The upward edge has a folded piece folded back to face the reflective side wall of the reflector, Folded At both ends in the longitudinal direction of the reflector. At the bottom Respectively Engagement end portions formed by bending the reinforcing metal fittings at both ends in the longitudinal direction are formed in the notch grooves formed open. The reflector is attached so as to be along the outer surfaces of both ends in the longitudinal direction of the reflector. In addition, an intermediate portion of the reinforcing bracket is sandwiched between a bent piece bent along the outer surface of the end portion from both ends in the longitudinal direction of the reflecting plate and an end portion in the longitudinal direction of the reflecting plate, The reflector is fixed to the outer surface of both ends in the longitudinal direction.
[0010]
In the first aspect of the present invention, in order to fix the reinforcing bracket for reinforcing the bowl-shaped reflecting plate to the reflecting plate, first, the reinforcing plate has the engagement end portions at both ends thereof, and each of the reflecting plates has a reverse cross section. It hooks from below into a notch groove formed in the folded piece of the U-shaped upward edge. Accordingly, the reinforcing metal fitting is arranged so as to be attached along the width direction to the outer surface of the end portion in the longitudinal direction of the reflecting plate. By the hooking, the movement of the reinforcing bracket in the longitudinal direction of the reflecting plate and the movement of the both ends of the reinforcing bracket in the upward direction are stopped. Next, the bent piece integral with the reflecting plate is bent along the outer surface of the end portion in the longitudinal direction of the reflecting plate, and the intermediate portion of the reinforcing plate is sandwiched between the end portion and the bent piece. Thereby, the upward movement of the middle part of the reinforcing bracket is stopped, and the entire reinforcing bracket is brought into close contact with the outer surface of the end portion in the longitudinal direction of the reflector.
[0011]
As described above, both ends of the reinforcing metal fitting are hooked on the notch provided in the upward edge of the reflecting plate, and the intermediate portion of the reinforcing metal fitting is placed between this and the reflecting plate end using the bent piece of the reflecting plate. By sandwiching, the reinforcing bracket can be fixed to the outer surface of the reflector without using a fixing part such as a screw or welding.
[0012]
In order to solve the second problem, the invention according to claim 2 dependent on claim 1 is provided integrally with a pressing piece that can be elastically deformed on one side in the width direction of the reinforcing metal fitting, Between the longitudinal end portions of the reflection plate, an insertion piece of the reflection end plate provided by closing the open end in the longitudinal direction of the reflection plate or a connection plate for connecting adjacent reflection plates is inserted. An entrance is formed, and the insertion piece or the connecting plate inserted between the pressing piece and the end portion in the longitudinal direction of the reflecting plate facing the holding piece is fixed.
[0013]
Since the invention according to claim 2 is dependent on the invention according to claim 1, in addition to solving the first problem, the reinforcing metal fitting is used to connect the reflector to the adjacent lighting fixture. The inserted piece of the connecting plate or the reflection end plate to be performed can be fixed to the reflection plate provided with the reinforcing metal fitting without using a fixing part or welding. That is, since the reinforcing bracket has a pressing piece that forms an inlet between the longitudinal ends of the reflecting plate, the connecting plate or the insertion piece inserted from the inlet is used as the pressing piece of the reinforcing bracket. And the end of the reflecting plate in the longitudinal direction, which are overlapped with each other, can be fixed, and no fixing parts or welding is required for the fixing.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
[0015]
In FIG. 1, a reference numeral 1 denotes a ceiling, and reference numeral 1 a denotes an instrument mounting hole in which the ceiling 1 is opened. The fixture mounting hole 1a has a long length corresponding to the entire length of the connected lighting device constituted by connecting a plurality of lighting fixtures 2 in the longitudinal direction. A large number of suspension bolts 3 are arranged at predetermined intervals on the back of the ceiling facing the instrument mounting hole 1a. A washer 4 is fitted to the lower ends of these bolts 3 and a nut 5 is screwed together. By tightening the nut 5, the luminaire 2 is embedded in the ceiling 1 and attached.
[0016]
The connected lighting device includes a plurality of lighting fixtures 2 arranged continuously in a straight line, a central connecting plate 6 that connects adjacent lighting fixtures 2 to each other, and a pair of side connecting plates 7 that make a similar connection, And reflective end plates 8 made of colored steel plates provided at both ends in the longitudinal direction of the lighting device.
[0017]
Each luminaire 2 includes a metal fixture body 11, a plurality of metal fixtures 12 (only one shown in FIG. 1), a metal reflector 13, and a straight tube fluorescent lamp 14 serving as a light source. It has. The reflector 13 is formed by a lower open-type reflecting plate 15 and reinforcing metal fittings 16 fixed to the outer surfaces of both ends in the longitudinal direction of the reflecting plate 15.
[0018]
The appliance main body 11 has an elongated box structure with an open bottom surface, and houses therein a lighting device such as a discharge lamp stabilizer, a terminal block, and other various electric parts (not shown). Furthermore, socket mounting brackets 17 are attached to both ends of the instrument body 11 in the longitudinal direction. Since the lighting fixture 2 according to the first embodiment is for two lamps, a socket having a pair of socket holder portions 17a that protrudes outward in the width direction from the lower ends of the side walls 11a of the fixture main body 11 accordingly. Although the mounting bracket 17 is used, the present invention can be applied to a single-lamp type or a multi-lamp type lighting fixture having two or more lamps, and a socket mounting bracket 17 of a kind suitable for it is adopted. A lamp socket 18 on which the lamp 14 is detachably mounted is provided on the socket holder portion 17a so as to protrude downward.
[0019]
Connecting holes 19 made of vertically long slits are formed at both longitudinal ends of the opposite side walls 11a of the instrument body 11, and suspension bolts are formed on the upper wall 11b of the instrument body 11 at both longitudinal ends thereof. An introduction hole 20 is opened. The fixing bracket 12 is connected to the instrument body 11 across the body 11 in the width direction by hooking the engaging claw 12a included in the fixture 12 into the connection hole 19 from the inside of the instrument body 11. Ceiling contact portions 12 b are bent at both ends in the longitudinal direction of the fixture 12.
[0020]
The instrument main body 11 to which the fixing bracket 12 is connected is embedded in the ceiling 1 and attached in the following procedure. First, the fixture body 11 and the fixture 12 are inserted into the fixture mounting hole 1a until the ceiling contact portion 12b of the fixture 12 hits the lower surface of the hole edge on both sides in the width direction of the fixture mounting hole 1a. The lower ends of the suspension bolts 3 on the back of the ceiling are respectively introduced into the holes 20. Next, the washer 4 is fitted to the lower end of each bolt 3 and the nut 5 is screwed and tightened. As a result, the ceiling contact portion 12b is brought into close contact with the lower surface of the edge of the instrument mounting hole 1a, and the instrument body 11 can be suspended from the plurality of suspension bolts 3 and attached to the ceiling 1.
[0021]
The reflector 15 provided in the reflector 13 is formed by bending a single color steel plate, and has a substantially horizontal flat plate shape as shown in FIG. 1, FIG. 2, FIG. 4, FIG. A reflective side wall 15b that bends obliquely downward from both sides in the width direction of the ceiling wall 15a is provided to form a bowl-like shape having an open lower surface, and the inner surface is a reflective surface. Further, on both sides in the width direction of the reflecting plate 15, upward edges 22 are formed integrally with the lower edge of the reflecting side wall 15 b via a horizontal edge 21 and having an inverted U-shaped cross section. Accordingly, the horizontal edge portion 21 and the upward edge portion 22 form a protruding opening edge having a substantially L-shaped cross section, and this opening edge covers the hole edge of the instrument mounting hole 1a from below. The upward edge 22 has a folded piece 22a. The folded pieces 22a are separated above the horizontal edge portion 21, and cutout grooves 23 shown in FIGS. 8D and 8E are formed at both ends in the longitudinal direction. The cutout groove 23 is shallow and is open to the horizontal edge 21 side.
[0022]
At both ends in the longitudinal direction of the reflective ceiling wall 15a, as shown in FIGS. 8B and 8C and the like, socket through portions 24 are respectively cut out and protrude into the through portions 24. A bent piece 25 is provided. Since the lighting fixture 2 is a two-lamp type, the socket passing part 24 is provided with a pair according to that, and for example, a pair of bent pieces 25 are provided for each socket passing part 24. The bent piece 25 is bent so as to overlap the outer surface of the edge portion of the socket passage portion 24 and is arranged outside the socket passage portion 24. At the same time, the socket passage portion 24 has a rectangular shape with an appropriate size. It is supposed to be.
[0023]
Provided to suppress twisting of the bowl-shaped reflector 15 Reinforcing bracket 16 Is formed by bending a single metal plate into a shape that is substantially the same shape as the cross-sectional shape in the width direction of the reflector 15 as shown in FIG. 9B, and the like, Reflecting side wall attachment portions 16b bent from both ends in the longitudinal direction, horizontal edge attachment portions 16c bent from the attachment portions 16b, and engagement end portions 16d bent from the attachment portions 16c, respectively. And is formed from. The engaging end portion 16d is bent so as to form a V-shaped cross section with the horizontal edge attaching portion 16c, and the end portion 16d can be elastically deformed in the bending direction.
[0024]
The reinforcing metal fitting 16 is formed with a first rib 31 for improving strength continuous over a portion other than the engagement end portion 16d, and a second rib 32 shorter than the first rib 31. And as shown in FIG. Reflective ceiling wall attachment part 16a The one end side in the width direction has a similar concavo-convex shape corresponding to the concavo-convex shape of the end portion in the longitudinal direction of the reflecting plate 15. That is, 33 is a pair of dents corresponding to the socket passage 24, 34 is an auxiliary dent formed between these dents 33, and 35 is a convex plate part positioned on both sides of each dent 33, 34. . The auxiliary recess 34 may be omitted and the portion may be formed as a blind plate. However, by providing the recess 34, the insertion resistance of a later-described insertion piece of the central connecting plate 6 or the reflection end plate 8 is reduced. Assembly to facilitate the assembly.
[0025]
As shown in FIGS. 5 to 7 and the like, each convex plate portion 33, the reflection side wall attaching portion 16b and the horizontal edge attaching portion 16c are provided with a root portion 37 that slightly rises, and the pressing pieces 38 are integrally extended. It is installed. These presser pieces 38 are elastically deformable and have an introduction piece 38a bent obliquely at the tip thereof. Introduction piece 38a And a hemispherical stopper convex portion 39 located between the base portion 37 and the base portion 37.
[0026]
The reinforcing metal fittings 16 having the above-described configuration are respectively fixed to the outer surfaces of both ends in the longitudinal direction of the reflecting plate 15 along the width direction of the reflecting plate 15. The reinforcement metal fittings 16 are fixed in the following procedure. First, the respective engaging end portions 16d are elastically deformed so as to approach the horizontal edge attaching portion 16c side, and are inserted inside the upward edge portion 22 of the reflecting plate 15 to engage with the notch groove 23 of the folded piece 22a. Let
[0027]
As a result, the engagement end portion 16d is caught in the notch groove 23 in a slightly bent state, and the elastic force to be restored is applied to the outer surface of the end portion in the longitudinal direction of the reflection plate 15 in the width direction of the reflection plate 15. It is possible to hold the entire reinforcing metal fitting 16 arranged so as to be in contact with the outer surface of the end portion. Moreover, since the lengths of the engagement end portion 16d and the cutout groove 23 are substantially equal, positioning by the hooking along the longitudinal direction prevents the reinforcing bracket 16 from inadvertently moving along the longitudinal direction of the reflecting plate 15. it can.
[0028]
In addition, the recess 33 of the reinforcing metal fitting 16 held by such hooking is just communicated with the socket passage part 24 of the reflecting plate 15, and at the same time, the convex plate part 35 provided on the reflecting ceiling wall attaching portion 16a Overlapping the plate portions on both sides of the socket passing portion 24 at the longitudinal end portion of the reflective ceiling wall 15a, the convex plate portion 35 provided on the reflective sidewall attaching portion 16b is on the longitudinal end portion of the reflective sidewall 15b. Similarly, the convex plate portion 35 provided on the horizontal edge portion attaching portion 16 c overlaps the end portion of the horizontal edge portion 21 in the longitudinal direction. Thereby, the stopper convex portion 39 is pressed against the outer surface of the longitudinal end portion of the reflecting plate 15 by the elastic force of the pressing piece 38 of each convex plate portion 35, and between the longitudinal direction end portions of the pressing piece 38. Introduction piece 38a Between Stopper convex part 39 An inlet 40 is formed which becomes gradually narrower toward.
[0029]
Next, each bent piece 25 protruding from the socket through portion 24 is bent and crimped so as to overlap the convex plate portion 35 adjacent to the socket through portion 24. Thereby, the convex plate portion 35, in other words, the intermediate portion of the reinforcing metal fitting 16 is sandwiched between the longitudinal end portion of the reflecting ceiling wall 15a and the bent piece 25, and the reinforcing metal fitting 16 is closely attached to the reflecting plate 15. In addition to improving the performance, the reinforcing metal fitting 16 can be prevented from inadvertently moving upward from the reflecting plate 15. 2, 3, 5, and the like show a state in which the bent piece 25 fixes the reinforcing metal fitting 16.
[0030]
That is, the reinforcing metal fitting 16 can be fixed to the outer surface of the end portion of the reflecting plate 15 by the above procedure. Instead of the above-described procedure, the procedure described above may be executed after the bent piece 25 is bent and placed in a state where it rises at a right angle to the reflecting ceiling wall 15a.
[0031]
In the above procedure Assembled After the reflector 13 is inserted into the instrument mounting hole 1a so as to be arranged below the fixing bracket 12, Reflector 15 By attaching a decorative screw 41 to a screw receiving portion (not shown) provided in the fixing bracket 12 through the reflective ceiling wall 15a, the fixture mounting hole 1a and its hole edge are covered and attached to the ceiling 1. It is done. As a result of this attachment, the lamp sockets 18 are disposed below the reflector 13 through the socket through portions 24 of the reflector 15. The sockets 18 are used to arrange the lamp sockets 18 inside the reflector 13. A fluorescent lamp 14 is attached to the.
[0032]
Next, the metal connection plates 6 and 7 that connect the adjacent lighting fixtures 2 to each other will be described. As shown in FIG. 10 and the like, the central connecting plate 6 has a substantially strip shape, and has recesses 45 cut out from both sides in the width direction at both ends in the longitudinal direction, and in the vicinity thereof. A bead 46 is positioned and extends in the width direction. The central connecting plate 6 fixes one half of the adjacent lighting fixtures 2 by fixing the half in the width direction to one of the adjacent lighting fixtures 2 and fixing the remaining half in the width direction to the other lighting fixture 2. The reflection ceiling walls 15a of the reflection plate 15 are connected to each other.
[0033]
In this connection, the central connecting plate 6 is inserted from the entrance 40 between the end portion of the reflective ceiling wall 15a and the pressing piece 38 of the convex plate portion 35 overlapping therewith, with elastic deformation of the pressing piece 38. . At this time, since the concave portion 45 is fitted to the stopper convex portion 39, an excessive insertion force is not required. Moreover, since each bead 46 is engaged with the opposite side edges of the auxiliary recess 34, the center connecting plate 6 is inadvertently displaced in the longitudinal direction, in other words, in the width direction of the reflector 13 due to the catch. It is possible to increase the connection strength between the adjacent reflectors 15.
[0034]
As shown in FIG. 11, the pair of side connecting plates 7 includes a ceiling wall overlapping portion 7a, a side wall overlapping portion 7b bent downward from one end thereof, and an L-shaped protruding opening edge bent from the lower end thereof. And an overlapping portion 7c. The ceiling overlapping portion 7a is provided with recesses 47 from both sides in the width direction, and each of the overlapping portions 7a to 7c has an engagement hole 48 which is located at both ends in the width direction and is formed by a long hole. Further, a stopper projecting piece 49 that projects from the central portion in the width direction toward the side wall overlapping portion 7b is bent at the overlapping portion 7c.
[0035]
These side connection plates 7 are fixed to one of the adjacent lighting fixtures 2 in the width direction half, and fixed to the other lighting fixture 2 by fixing the remaining half in the width direction to the other lighting fixture 2. The reflectors 15 are connected to each other.
[0036]
In this connection, the side connecting plate 7 includes the reflecting side wall 15b and the horizontal edge between the inlet 40 and the end of the reflecting ceiling wall 15a on the reflecting side wall 15b side and the pressing piece 38 of the convex plate 35 overlapping therewith. 21 is inserted between the longitudinal end portion 21 and the presser piece 38 of the convex plate portion 35 that overlaps the end portion 21 with elastic deformation of the presser piece 38. At this time, the concave portion 47 is fitted to the stopper convex portion 39. Further, the engagement holes 48 are fitted into the stopper convex portions 39 of the pressing pieces 38, respectively. This state is representatively shown in FIG. Therefore, the coupling strength in the longitudinal direction between the adjacent reflectors 15 can be increased by these catches. Moreover, at this time, the stopper protrusion 49 is fitted into the notch 50 shown in FIG. 8D, whereby the side connecting plate 7 is positioned in the insertion direction.
[0037]
In addition, in the lighting fixture 2 which adjoins the reflector 15 as mentioned above, the longitudinal direction edge parts of the fixture main body 11 are also connected via an appropriate connection structure (not shown).
[0038]
Further, the reflection end plate 8 which is located on the end surface on the non-connecting side of the luminaire 2 positioned at both ends in the longitudinal direction of the illuminating device and closes the open end surface of the reflector 13 is formed by bending a color steel plate integrally. 4 and FIG. 12 and so on. That is, one or more insertion pieces 52 and 53 are bent from the upper edge and the inclined side edge of the end plate main portion 51 having the same shape as the open end surface, and correspond to the protruding opening edge. The End plate main part 51 The insertion pieces 55 are also bent at both ends of the end plate extending opening edge 54 formed by bending the lower edge outward. Each of the insertion pieces 52, 53, 55 has an engagement hole 56 formed of a long hole. In addition, End plate main part 51 In this case, the reflector support 57 facing the root of the two insertion pieces 52 located in the middle of the four insertion pieces 52 bent from the upper edge is pushed out from the outer surface toward the inner surface. It is projected to be The inner surface of the reflection end plate 8 having the above configuration (the surface opposite to the protruding direction of the opening edge 54) is a reflection surface.
[0039]
In this reflection end plate 8, each insertion piece 52 overlaps the outer end surface of the reflection ceiling wall 15a, each insertion piece 53 overlaps the outer end surface of the reflection side wall 15b, and the outer end surface of the horizontal edge 21. The insertion pieces 52, 53, 55 are arranged between the end portion in the longitudinal direction of the reflection plate 15 and the pressing piece 38 of the convex plate portion 35 overlapping with the insertion piece 52, 53, 55 so that the insertion pieces 55 overlap each other. In addition, by inserting with the elastic deformation of the presser piece 38 respectively, Instrument body 11 The open end face is closed and fixed. At this time, the engaging holes 56 are fitted into the stopper convex portions 39 of the pressing pieces 38, respectively. This state is representatively shown in FIG. Therefore, by these catches, Instrument body 11 The connection strength of the reflective end plate 8 to the can be increased. In addition, along with such attachment, the longitudinal edge 15a1 of the reflective ceiling wall 15a is inserted so as to be sandwiched between the pressing piece 38 and the reflector support 57 as shown in FIG. Then, it is supported from below by the reflector support 57. for that reason, Reflective ceiling wall 15a It is possible to prevent sagging so that the central portion in the width direction is lowered at the end in the longitudinal direction.
[0040]
And in the reflector 13 with which each lighting fixture 2 which comprises the connection type illuminating device of the said structure is provided, in order to fix the reinforcement metal fitting 16 to the outer surface of the reflecting plate 15, the reinforcement metal fitting 16 is mentioned in the both ends as mentioned above. The engaging end portions 16d are hooked from below into the notch grooves 23 formed in the folded piece 22a of the upward edge portion 22 of the inverted U-shaped cross section of the reflecting plate 15, and then bent integrally with the reflecting plate 15. The piece 25 is bent along the outer surface of the end portion in the longitudinal direction of the reflection plate 15, and between the end portion and the bent piece 25. Reinforcing bracket 16 The entire reinforcing metal fitting 16 may be brought into close contact with the outer surface of the end portion in the longitudinal direction of the reflection plate 15 with the intermediate portion thereof being crimped. In this way, the reinforcing bracket 16 can be fixed to the outer surface of the reflector 15 without using a fixing part such as a screw or by welding. Therefore, the reflecting plate 15 to which the reinforcing metal fitting 16 is fixed can be made of a color steel plate.
[0041]
Moreover, since the reinforcing metal fitting 16 has a pressing piece 38 that forms an inlet 40 between the longitudinal end of the reflector plate 15, a connecting plate that connects the reflectors 13 of the adjacent lighting fixtures 2. 6, 7 or by inserting the insertion pieces 52, 53, 55 of the reflective end plate 8 attached to the luminaire 2 located at the end of the connection type lighting device through the entrance 40, thereby reinforcing the metal fittings 16. Since the presser piece 38 and the end portion in the longitudinal direction of the reflecting plate 15 on which the presser piece 38 overlaps can be fixed, there is no need to use fixing parts such as screws or welding. Therefore, the reflecting plate 15 and the reflecting end plate 8 can be made of a color steel plate.
[0042]
And since a color steel plate can be adopted in this way, after assembling the reflector 13, or after assembling the reflecting end plate 8 to the reflector 13, there is no need for a painting operation, so the productivity is good and inexpensive. In addition, it is possible to make a high-quality instrument having no variation in reflection characteristics, and the appearance of the open-side reflector 13 as in the case where many fixing parts such as screws are exposed, and this reflector 13 is provided. The appearance of the entire device is not impaired.
[0043]
In addition, although the said 1st Embodiment is an example applied to the lighting fixture used for a connection type illuminating device, this invention is applicable also to the non-connection type lighting fixture shown by FIG. In the second embodiment, the reflector 13 fixes the reinforcing metal fittings 16 to the outer surfaces of both ends in the longitudinal direction of the reflecting plate 15 whose bottom surface is opened, and the open end surfaces of both ends in the longitudinal direction of the reflecting plate 15. And the reflection end plate 8 is fixed to each other. Also in the second embodiment, the problem of the present invention can be solved in the same manner as in the first embodiment. Since the second embodiment shown in FIG. 13 has basically the same configuration as the first embodiment, the same reference numerals are assigned to the same components as in the first embodiment. It is.
[0044]
Further, in each of the above embodiments, the bent piece 25 is provided by using the plate portion of the portion through which the socket through portion 24 is punched, so that the material of the reflector 15 is good and the trace of the bent piece 25 being bent is reflected on the reflector. It is excellent in that the appearance of 15 is not impaired. However, the present invention is not limited thereto, and in the present invention, the bent piece 25 may be provided by extending in the longitudinal direction from the end face of the reflecting plate 15, or the bent mark becomes a groove or a hole at the end of the reflecting plate 15. You may provide the bending piece 25 so that it may remain.
[0045]
Further, the present invention can be applied to a ceiling-mounted lighting fixture regardless of the ceiling-mounted lighting fixture according to each of the embodiments.
[0046]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0047]
According to the first aspect of the present invention, the reinforcing bracket is fixed to the outer surface of the reflector without using a fixing part such as a screw that impairs the appearance of the reflector or by using a welding stopper that requires painting after the reflector is assembled. Since it can do, the reflecting plate to which a reinforcement metal fitting is fixed can be made from a color steel plate.
[0048]
According to the second aspect of the present invention, which is dependent on the first aspect, the connecting plate or the reflective end plate inserted through the inlet formed between the pressing piece of the reinforcing metal fitting and the longitudinal end of the reflective plate. The insertion piece can be fixed by being sandwiched between the holding piece and the longitudinal end of the reflection plate without using a fixing part or requiring welding, whereby the reflection plate is made of a color steel plate. be able to.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a configuration of a coupled illumination device according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view showing a configuration around a connection portion of the connection type illumination device according to the first embodiment.
FIG. 3 is a perspective view showing a configuration of one end portion in a longitudinal direction of a reflector provided in the coupled illumination device according to the first embodiment.
FIG. 4 is an exploded perspective view showing the configuration of one end in the longitudinal direction of a reflector provided in the coupled illumination device according to the first embodiment.
5 is a cross-sectional view taken along the line ZZ in FIG.
6 is a cross-sectional view taken along line YY in FIG. 2 when the connecting plate is fixed to the end of the reflecting plate.
7 is a cross-sectional view taken along line YY in FIG. 2 in a state in which the reflective end plate is fixed to the end of the reflective plate.
FIG. 8A is a side view showing a configuration of an end portion of a reflection plate included in the coupled illumination device according to the first embodiment.
(B) is a top view which shows the reflecting plate edge part of FIG. 8 (A).
(C) is a figure which shows the reflecting plate end part of FIG. 8 (A) seen from an end surface direction.
FIG. 9D is a cross-sectional view taken along line XX in FIG.
FIG. 9E is a cross-sectional view taken along line WW in FIG.
FIG. 9A is a plan view showing a configuration of a reinforcing metal fitting provided in the coupled illumination device according to the first embodiment.
(B) is a front view which shows the reinforcement metal fitting of FIG. 9 (A).
FIG. 10C is a side view showing the reinforcing metal fitting of FIG.
FIG. 10 is a perspective view showing a configuration of a central connecting plate provided in the connecting illumination device according to the first embodiment.
FIG. 11 is a perspective view showing a configuration of a side center connecting plate provided in the connecting type illumination device according to the first embodiment.
FIG. 12A is a plan view showing a configuration of a part of a reflection end plate included in the coupled illumination device according to the first embodiment.
(B) is a front view which shows a structure of a part of reflective end plate of FIG. 12 (A).
(C) is a side view which shows the structure of the whole reflective endplate with which the connection type illuminating device which concerns on 1st Embodiment is provided.
FIG. 13 is a perspective view showing a configuration of a lighting fixture according to a second embodiment of the present invention.
[Explanation of symbols]
2 ... Lighting fixture, 6 ... Central connecting plate, 7 ... Side connecting plate, 8 ... Reflecting end plate, 13 ... Reflector, 15 ... Reflecting plate, 15b ... reflective side wall, 16: Reinforcing bracket, 16d: Engagement end , 22 ... Upward edge part, 22a ... Folding piece, 23 ... Notch groove, 25 ... Bending piece, 38 ... Pressing piece, 40 ... Entrance, 52, 53, 55 ... Insertion piece.

Claims

Reflective end plates or other luminaires in which both ends in the longitudinal direction of the reflecting plate having a bowl-like shape each having an upward edge folded in an inverted U-shaped cross section on both sides in the width direction and having an open bottom surface The reflector includes a reflector having a reflector having the same shape as the reflector and is open so that the reflector can be attached, and a reinforcing member fixed to the outer surface of each end along the width direction. In the instrument,
The upward edge has a folded piece which is folded by reflecting side walls facing the reflector, the longitudinal ends notched groove formed by each opening in the lower end of the reflecting plate of the folded piece, The engaging end portions formed by bending at both ends in the longitudinal direction of the reinforcing metal fitting are respectively hooked and attached along the outer surfaces of both ends in the longitudinal direction of the reflecting plate, and from both ends in the longitudinal direction of the reflecting plate. An intermediate portion of the reinforcing bracket is sandwiched between a bent piece bent along the outer surface of the end portion and an end portion in the longitudinal direction of the reflecting plate, and the reinforcing bracket is fixed to outer surfaces of both end portions in the longitudinal direction of the reflecting plate. A lighting apparatus characterized by that.

A pressing piece that can be elastically deformed is provided integrally on one side in the width direction of the reinforcing metal fitting, and the open end in the longitudinal direction of the reflecting plate is closed between the pressing piece and the longitudinal end of the reflecting plate. Forming an inlet into which a connecting plate for connecting the reflecting plates inserted in the reflecting end plate or adjacent reflecting plates is inserted, and holding the pressing piece and the longitudinal end portion of the reflecting plate facing it The lighting fixture according to claim 1, wherein the insertion piece or the connecting plate inserted between them is fixed.