JP3843465B2

JP3843465B2 - lighting equipment

Info

Publication number: JP3843465B2
Application number: JP04100095A
Authority: JP
Inventors: 忠男山本
Original assignee: Toshiba Lighting and Technology Corp
Current assignee: Toshiba Lighting and Technology Corp
Priority date: 1995-02-28
Filing date: 1995-02-28
Publication date: 2006-11-08
Anticipated expiration: 2021-11-08
Also published as: JPH08235927A

Description

【０００１】
【産業上の利用分野】
本発明は、例えばシステム天井用照明器具等の天井埋込形の照明器具に関する。
【０００２】
【従来の技術】
従来技術を図１０ないし図１３を参考にして説明する。
【０００３】
図１０において、２は下面開口した断面略台形の器具本体で、この器具本体２の背面部２ａには電源線（Ｆケ−ブル）１２を通す略四角形の電源線通孔１１を設け、この電源線通孔１１の両側に対向してねじ孔１４をそれぞれ設ける。１３は端子台１６を取付ける断面略コ字形をした端子台取付片１３ａとこの両端から外方にそれぞれ略直角に折曲げた取付片１３ｂとからなる端子台取付金具で、この端子台取付金具１３の取付片１３ｂに、それぞれ器具本体背面部２ａのねじ孔１４と対向してそれぞれ取付孔１３ｃを設け、この取付孔１３ｃにそれぞれねじ１５を挿通してねじ孔１４に螺着し、端子台取付金具１３を器具本体背面部２ａに取付ける。
【０００４】
電源線１２等が接続される端子台１６は端子台取付片１３ａにねじ（図示せず）で取付けられている。この端子台１６の上面１６ａには、一対の電源線挿入穴１７ａと他の一対の電源線挿入穴１７ｂと一対のア−ス線挿入穴１８とがそれぞれ垂直に設けられ、これらの穴１７ａ，１７ｂ，１８は電源線通孔１１に対向して開口している。さらに、端子台１６の一方の側面１６ｂには、一対の負荷線（器具内配線）挿入穴１９ａと他の一対の負荷線（器具内配線）挿入穴１９ｂとがそれぞれ水平に設けられるとともに側面に開口している。
【０００５】
図１１において、２１は略Ｉ字形をした支持バ−で、この支持バ−２１は支持バ−主部２１ａの上下に上側張出し部２２と下側張出し部２３とを設け、天井２４の裏面側に対向して取り付けられている。この支持バ−２１間には開口部２４ａが設けられている。
【０００６】
２６は一対の支持バ−２１の上側張出し部２２に跨いで取付けられる支持脚体で、この支持脚体２６は断面略コ字形をした支持脚体主部２７とこの主部２７の両端にそれぞれ載置部２８を設ける。この載置部２８は、図１２に示すように主部２７端部の一方側から連続して設けた略長方形の載置片（内）２８ｂと主部２７端部の中央部に外方に略Ｌ字形をした載置片（外）２８ａとからなる。さらに、主部２７端部の他方側に孔３２ｂを設けるとともに、略長方形で上端に孔３２ａを設けたばね材からなる押えばね主部３０ａとこの主部３０ａの下端に上方に開口した断面略Ｕ字形をした引掛片３０ｂを外方に形成した押えばね３０をリベット３１を押えばねの孔３２ａおよび支持脚体の孔３２ｂに挿入して引掛片３０ｂが外側に取付けられるように支持脚体２６の両側にカシメて固定する。
【０００７】
２は端子台１６を取付けた端子台取付金具１３が取付けられる器具本体で、この器具本体背面部２ａの内面長手方向の両端には、それぞれ対向してソケット取付台３が取付けられ、この取付台３の下面には直管形蛍光ランプ（図示せず）が取付けられるランプソケット７をそれぞれ対向して取付ける。さらに、器具本体背面部２ａの内面長手方向の中間には、支持板６が対向してそれぞれ取付けられ、この支持板６の下面にはそれぞれ略Ｉ字形をしたつまみ部５ａが設けられた取付ねじ５が回転可能に取付けられている。
【０００８】
図１１において、４は器具本体２の内面に取付けられた支持板６の下面に当接するように断面略コ字形をした反射板で、この反射板４には取付ねじ５のつまみ部５ａが挿入可能な略Ｉ字形の挿入孔（図示せず）を幅方向にそれぞれ形成されている。
【０００９】
照明器具の取付け，取外し手順について説明する。
【００１０】
最初に、端子台１６，ランプソケット７，取付ねじ５等を取付けた器具本体２，反射板４、支持脚体２６を天井２４裏に搬入する。次ぎに、器具本体２の幅方向両端を支持バ−２１の下側張出し部２３の上に載置する。さらに、支持脚体２６の両端にそれぞれ設けた載置部２８を支持バ−２１の上側張出し部２２に乗せると支持脚体２６の押えばね３０の引掛片３０ｂが内側方向に曲り（図１３参照）、支持脚体２６が支持バ−２１上に載置される。次ぎに、室内から取付ねじ８で器具本体２を支持脚体２６に固定する。最後に、器具本体２に取付けた取付ねじ５のつまみ部５ａを幅方向にそれぞれ回動させ、このつまみ部５ａを反射板４の挿入孔（図示せず）にそれぞれ挿通させたのち、取付ねじ５を締付けて、器具本体２の内側に反射板４を取付ける。
【００１１】
照明器具を天井２４裏から取外すには、最初に、取付ねじ５のつまみ部５ａをそれぞれ長手方向に回転させ、反射板４を器具本体２から取外す。次ぎに、取付ねじ８をそれぞれ支持脚体２６から取外す。さらに、器具本体２を斜め上方に傾けて、天井２４の開口部２４ａから取外す。最後に、支持脚体２６の両端にそれぞれ設けた押えばね３０をそれぞれ図１３に示すように内側方向に折曲げつつ、支持脚体２６を上方に移動させ、支持バ−２１から支持脚体２６をそれぞれ取外す。
【００１２】
【発明が解決しようとする課題】
上記のように従来の照明器具の取付けは、施工現場で、別々に包装された梱包を開き、高い位置にある天井２４裏に支持脚体２６等の部品を搬入したのち、従来技術の欄に記載した手順で組み立てる。このため、梱包を開梱する時間が多くかかるとともに、部品毎に高い位置にある天井２４裏に搬入するため、多数の照明器具を施工する場合には、特に、疲労が蓄積し、作業に手間がかかる。さらに、薄暗く狭い天井２４裏で、器具本体２、支持脚体２６を支持バ−２１に取付けたのち、室内側から複数個の取付ねじ８で器具本体２を支持脚体２６取り付けるとともに、反射板４を取付ねじ５で取付ける。照明器具の取付けは、薄暗く狭い天井２４裏と室内側からの取付作業を必要とし、取付時間を多く必要とするとともに、作業に手間がかかり多数の照明器具を施工する場合には特に疲労が蓄積し、安全性に問題が生ずる場合がある。
【００１３】
また、照明器具の取外しは、取付ねじ８を支持脚体２６から取外し、器具本体２と支持脚体２６を分離しなければ、器具本体２を支持バ−２１より取外すことはできない。さらに、支持脚体２６を支持バ−２１より取外すとき、支持脚体２６の両端にそれぞれ取付けた押えばね３０をそれぞれ内側に折曲げながら支持脚体２６を上方に移動させなければ支持脚体２６を支持バ−２１から取外すことができない。このため、支持脚体２６の取外しに手間がかかるとともに押えばね３０を内側に折曲げるため、折曲げ治具等を必要とする等の問題があった。
【００１４】
本発明は上記の点に鑑みてなされたもので、照明器具の取付け、取外しが容易な照明器具を提供することを目的とする。
【００１５】
【課題を解決するための手段】
前記目的を達成するために、本発明の照明器具は、器具本体をこの器具本体の上面に取付けられた支持脚体を介して上部に係止突部を有する一対の支持バ−上に係止する照明器具において、前記支持脚体は、支持脚体主部とこの主部の幅方向両端からそれぞれ下方に折り曲げられた支持脚体側部とから断面略Ｕ字形をなし、前記器具本体の幅方向両端にそれぞれ支持バ−上に載置される載置部を前記支持脚体側部の下端に形成するとともに、前記支持脚体主部の幅方向の端から前記支持脚体側部に渡る貫通孔を設け、前記支持脚体には、断面略Ｕ字形をなし、両端に一方が外側から一方の前記支持バーの係止突部に係止し、他方が内側から他方の前記支持バーの係止突部に係止する係止片を有する係止部材が幅方向にスライド可能に一体的に取付けられ、前記係止部材の係止片と前記支持バ−の係止突部との係止を解除する方向または係止する方向に前記係止部材を前記支持脚体に対して移動させ、それぞれの位置で前記係止部材と前記支持脚体とを固定する固定部材を設けたことを特徴とする。
又、本発明では、前記照明器具本体の背面部に、前記支持脚体を取付けるスリット状の取付孔を長手方向に設けるとともに、この取付孔に直交して前記係止部材の係止片がそれぞれ前記支持バーに引掛からない位置まで前記係止部材を幅方向に移動させるスライド孔を複数開口するとよい。
【００１６】
【作用】
器具本体の背面部に設けられているスリット状の取付孔を介して取付ねじ（Ａ）により器具本体に支持脚体が連結され、この支持脚体に設けられている幅方向のスリット状のスライド孔（Ａ）および器具本体の背面部に設けられている幅方向のスリット状のスライド孔（Ｂ）を介して取付ねじ（Ｂ）により係止部材と支持脚体とが連結している。この係止部材と連結している取付ねじ（Ｂ）を緩めて、支持脚体に設けられているスリット状のスライド孔（Ａ）に沿って係止部材を移動させることにより、係止部材は取付ねじ（Ｂ）とともに移動し、係止部材の両先端部に形成した略Ｖ字状の係止片は、支持バ−上部の上側張出し部を回避することができ、器具本体と支持脚体とを連結させたままで、器具本体を支持バ−から取外すことができる。器具本体を支持バ−に取付ける場合も器具本体と支持脚体とを連結させたままで、取付ねじ（Ｂ）を緩め、係止部材をスライド孔（Ａ）に沿って移動させるだけのみで、簡単に器具本体を支持バ−に取付けできる。
【００１７】
【実施例】
以下、図１ないし図９を参照して本発明の実施例を説明する。なお、従来技術と同一の構成は同一番号を付して説明する。
【００１８】
図８は本発明の電源線挿通孔に取付ける端子台カバ−の状態を示す斜視図である。従来技術の器具本体２は、図１０に示すように、端子台上面１６ａに対向して電源線挿通孔１１が開口しているため、天井裏の粉塵が電源線挿通孔１１を介して電源線挿入穴等を設けた端子台上面１６ａに直接かかり易い。このため、長期間に渡る使用において、電源線挿入穴，ア−ス挿入穴，負荷線挿入穴に挿入された電源線との間に粉塵が侵入する。この侵入粉塵が端子台の電気導通部の抵抗となり、電気導通部の抵抗を増加させる。この結果、電源線と導通部で発生する熱が高くなり、最悪の場合、端子台１６が焼損する恐れがあった。
【００１９】
そこで、端子台上面１６ａに粉塵が直接かからないように、図８（Ａ）に示す端子台カバ−４０を器具本体２の電源線挿通孔１１に取付ける。断面略コ字形をした端子台カバ−４０は、上面に略長方形をした端子台カバ−主部４０ａとこの主部４０ａの両端後部から下方にそれぞれ対向して略直角に折曲げ、先端に外側方向に折曲げた係止爪４１ａを有する略Ｌ字形の係止部４１をそれぞれ形成する。さらに、主部４０ａの両端前部から下方にそれぞれ対向して略直角に折曲げて係合部４２を形成し、この係合部４２の前端下角隅部に前方に突出した係合爪４２ａをそれぞれ形成する。さらに、係止部４１の係止爪４１ａが内方に変形可能なように係止部４１と係合部４２との間に隙間４４を形成する。
【００２０】
つぎに、端子台カバ−４０と電源線挿通孔１１等の寸法関係を示す。電源線挿通孔１１の長手方向Ｂ，幅Ｄは端子台カバ−４０のカバ−主部４０ａの長手方向Ａ，幅Ｃより少し小さく、端子台カバ−４０の高さ方向Ｙは端子台取付金具１３の高さＺより少し小さく形成している。
【００２１】
端子台カバ−４０等の器具本体２への取付手順について図８，図９を参照して説明する。
【００２２】
最初に、端子台１６を取付けた端子台取付金具１３をねじ１５により器具本体２に螺着する。次ぎに、電源線１２の先端を略Ｌ字形に折曲げ、電源線挿通孔１１を介して、電源線１２の一対のリ−ド線を端子台１６の一対の電源線挿入穴１７にそれぞれ差込み電気導通部に接続する。最後に、端子台取付金具１３の立上り片１３ａの内面と端子台１６との間にそれぞれ形成した隙間４５に端子台カバ−４０の係合爪４２ａをそれぞれ挿入しつつ、端子台カバ−４０に対向してそれぞれ設けた係止爪４１ａを内方に変形させて、端子台カバ−４０を電源線挿通孔１１に装着する。係合爪４２ａは端子台取付金具１３の底面１６ｃと器具本体背面部２ａの内面との間に係合するとともに、端子台カバ−４０の係合部４２の下端突当部４３が端子台取付金具１３の底面１６ｃに載置される。さらに、係止爪４１ａは、器具本体背面部２ａに係止され、端子台カバ−４０が電源線挿通孔１１から外れないように構成されている。なお、端子台カバ−４０の開口部の高さ（Ｘ−Ｙ）は、図９（Ｃ）に示すように、電源線１２が端子台１６に装着できる高さとなっている。
【００２３】
端子台１６の上面を覆う端子台カバ−４０を電源線挿通孔１１に着脱可能に設けたので、天井裏の粉塵が端子台の上面に直接ふりかかることが少なくなり、落下する粉塵による悪影響が少なくできる。
【００２４】
図３は本発明に係る係止部材および支持脚体を示す斜視図で、５０は支持バ−２１上に跨いで載置される支持脚体５５を支持バ−２１に係止する係止部材で、係止部材５０は上部に略長方形をした係止部材主部５０ａと幅方向の両端からそれぞれ下方に略直角に形成し、下端にそれぞれ上方に開口し略Ｖ字形の係止片５１を有する立下り片５０ｂとからなる。さらに、係止部材主部５０ａの中央には雌ねじを形成したねじ孔（Ａ）５２を設ける。
【００２５】
５５は支持バ−２１上に跨いで載置される支持脚体で、この支持脚体５５は上部に略長方形をした支持脚体主部５６と幅方向の両端からそれぞれ下方に略直角に形成し、下端外面にそれぞれ相反方向に載置部５８をそれぞれ有する支持脚体側部５７とからなる。さらに、支持脚体５５の支持脚体主部５６および支持脚体側部５７の長手方向両端に、それぞれ上方に略直角に形成した補強リブ６１を形成する。
【００２６】
さらに、支持脚体５５の支持脚体主部５６の幅方向の両端から支持脚体側部５７に渡り、一方の補強リブ６１ａの根元部まで略長方形に開口し、係止部材５０の立下り片５０ｂが挿入可能な貫通孔５９を設ける。また、支持脚体主部５６の貫通孔５９縁部には、一方の補強リブ６１ａと対向してガイド片５６ａを切起してそれぞれ形成し、貫通孔５９と挟まれた支持脚体主部５６の略中央の幅方向にスリット状のスライド孔（Ａ）６２ａを開口して形成する。このスライド孔（Ａ）６２ａの幅は、取付ねじ（Ｂ）６５の雄ねじより大きく、頭部６５ａより小さく形成されている。また、貫通孔５９に挟まれていない支持脚体主部５６の幅方向中央に取付ねじ（Ａ）６４を取付ける雌ねじを形成したねじ孔（Ｂ）６３を設ける。
【００２７】
支持脚体側部５７の両端に設けた載置部５８は、他方の補強リブ６１ｂ側の支持脚体側部５７の下端に連続して従来技術と同様な載置片（内）５８ｂと支持脚体側部５７の下端中央に断面Ｌ字形に形成した従来技術と同様な載置片（外）５８ａを形成する。
【００２８】
器具本体背面部２ａの幅方向中央に、支持脚体５５を取付けるスリット状の取付孔６６を長手方向に複数設けるとともに、この取付孔６６に直交してスライド孔（Ｂ）６２ｂを複数個例えば取付孔６６の手前と奥に係止部材５０を移動する方向（実施例の場合は背面部２ａの幅方向中央から左方向）に開口するとともに係止部材５０を移動したとき、係止部材５０の係止片５１がそれぞれ支持バ−２１の上側張出し部２２に引掛らない位置まで移動できる形状となっている。このスライド孔（Ｂ）６２ｂの幅は取付ねじ（Ｂ）６５の頭部６５ａが挿通する形状になっている。
【００２９】
なお、支持脚体にスライド孔（Ａ）６２ａを、係止部材５０にねじ孔（Ａ）５２を設けたが、スライド孔（Ａ）を係止部材に、ねじ孔（Ａ）を支持脚体に設けた構成でもよい。この場合は、取付ねじ（Ｂ）６５の操作は、器具本体の背面部側から操作される。
【００３０】
次に上記実施例の照明器具の取付および取外手順について説明する。
【００３１】
最初に、照明器具の取付手順について説明する。
【００３２】
天井裏に搬入前に、器具本体２に端子台１６，ランプソケット７，反射板４等を取付ける。さらに、図３に示すように、係止部材５０の一方の係止片５１を支持脚体５５の貫通孔５９に挿入するとともに、一方の補強リブ６１ａとガイド片５６ａとの間に係止部材５０を載置し、長い頭部６５ａを有する取付ねじ（Ｂ）６５を支持脚体５５のスライド孔（Ａ）６２ａを介して係止部材５０のねじ孔（Ａ）５２に螺着させて支持脚体組立６９とする。なお、頭部６５ａを長くしたのは、取付ねじ（Ｂ）６５の締付け、緩めの操作を容易にするためである。
【００３３】
次ぎに、この支持脚体組立６９を、図４に示すように器具本体背面部２ａのスライド孔（Ｂ）６２ｂに合わせて載置し、取付ねじ（Ａ）６４を器具本体２のスリット状取付孔６６を介して支持脚体５５のねじ孔（Ｂ）６３に螺着し図２に示す器具本体組立７０とする。
【００３４】
最後に、器具本体組立７０を、図７に示すように９０度回転させて横方向にして天井裏に搬入し、支持バ−２１上に器具本体組立７０の支持脚体５５の載置部５８を載置する。次ぎに、取付ねじ（Ｂ）６５を緩め、係止部材５０をスライド孔（Ｂ）６２ｂに沿って係止部材５０の係止片５１が支持バ−主部２１ａに突き当るまで右側方向に移動させたのち（図１）、取付ねじ（Ｂ）６５を締付けて係止部材５０を支持脚体５５に固定する。なお、器具本体２の取付孔６６にスライド孔（Ｂ）６２ｂを複数個設けたのは、天井裏に配管等の障害物が設置され、支持脚体５５が取付けることができない場合に、この支持脚体５５を障害物のない位置まで移動させるためである。なお、反射板４には、支持脚体５５のスライド孔（Ａ）６２ａおよびねじ孔（Ｂ）６３に対応した位置にスライド孔と丸孔（図示せず）が設けられている。
【００３５】
なお、各種の部品を天井裏に搬入したのち、各種部品を組立てる方法でもよい。
【００３６】
照明器具の取外手順について説明する。
【００３７】
最初に、取付ねじ（Ｂ）６５を緩め、係止部材５０をスライド孔（Ｂ）６２ｂに沿って左方向に係止部材５０の係止片５１が支持バ−２１の上側張出し部２２から外れる位置まで移動させる。次ぎに、器具本体組立７０を上方に移動させたのち（図６）、器具本体組立７０を９０度回転させて横方向にし（図７）、支持バ−２１間に開口した開口部２４ａから器具本体組立７０を搬出する。
【００３８】
照明器具を取付けるときは、支持脚体、係止部材等の部品を連結した器具本体組立のままで、天井裏へ搬入し、単に、支持脚体を固定する取付ねじ（Ａ）および係止部材をスライド移動させる取付ねじ（Ａ）の操作のみで簡単に支持バ−上に組立てができる。
【００３９】
さらに、照明器具を取り外すときは、係止部材をスライド移動させる取付ねじ（Ａ）の操作のみで簡単に支持バ−から器具本体を取り外すことができるとともに係止部材等の部品を連結した器具本体組立のままで、天井裏から簡単に搬出できる。
【００４０】
【発明の効果】
以上詳記したように本発明によれば、複数の支持脚体を器具本体に連結したままで取付ねじ（Ｂ）を緩め、係止部材を支持脚体の幅方向に設けたスライド状のスライド孔（Ａ）に沿って移動させるだけで係止部材の係止片と支持バ−との係止状態が解除または係止状態となり、器具本体を支持バ−上より簡単に取外し、または支持バ−上に簡単に取付けできる。
【図面の簡単な説明】
【図１】本発明の一実施例に係る器具本体を支持バ−上に取付けた状態を示す断面図。
【図２】同実施例における器具本体組立の外観を示す斜視図。
【図３】同実施例における係止部材および支持脚体を示す斜視図。
【図４】同実施例における支持脚体組立および器具本体を示す斜視図。
【図５】同実施例における器具本体を取外す手順を示すもので、係止部材の係止を解除した状態を示す断面図。
【図６】同実施例における器具本体を取外す手順を示すもので、器具本体を上方に移動させた状態を示す断面図。
【図７】同実施例における器具本体を取外す手順を示すもので、器具本体を横向きにし天井裏から下方に移動する前の状態を示す断面図。
【図８】同実施例における端子台を取付ける状態を示すものであり、
（Ａ）は端子台カバ−を示す斜視図。
（Ｂ）は器具本体の一部を示す斜視図。
（Ｃ）は端子台取付金具に端子台を取付けた状態を示す斜視図。
【図９】同実施例における端子台取付金具を器具本体に取付けた状態を示すもので、（Ａ）は側面図。（Ｂ）は上面図。（Ｃ）は前面図。
【図１０】従来技術の端子台取付金具を器具本体に取付ける状態を示す斜視図。
【図１１】従来技術の器具本体を支持バ−上に取付けた状態を示す断面図。
【図１２】従来技術の支持脚体の載置部の一方を示す斜視図。
【図１３】従来技術の器具本体を取外す状態を示す断面図。
【符号の説明】
２…器具本体，２ａ…背面部（器具本体の上面），２１…支持バ−，２２…上側張出し部（係止突部），５０…係止部材，５１…係止片，５５…支持脚体，５６…支持脚体主部，５７…支持脚体側部，５８…載置部，５９…貫通孔，６２ａ…スライド孔（Ａ），６２ｂ…スライド孔（Ｂ），６３…ねじ孔，６４…取付ねじ（Ａ），６５…取付ねじ（Ｂ）（固定部材）。[0001]
[Industrial application fields]
The present invention relates to a ceiling-embedded lighting fixture such as a lighting fixture for system ceiling.
[0002]
[Prior art]
The prior art will be described with reference to FIGS.
[0003]
In FIG. 10, reference numeral 2 denotes an instrument body having a substantially trapezoidal cross section with an opening on the lower surface. A substantially rectangular power line through hole 11 through which a power line (F cable) 12 passes is provided on the back surface 2 a of the instrument body 2. Screw holes 14 are respectively provided on both sides of the power line through hole 11. Reference numeral 13 denotes a terminal block mounting bracket comprising a terminal block mounting piece 13a having a substantially U-shaped cross section for mounting the terminal block 16 and a mounting piece 13b bent outward from the both ends substantially at a right angle. The mounting pieces 13b are respectively provided with mounting holes 13c facing the screw holes 14 of the instrument body rear surface portion 2a, and screws 15 are inserted into the mounting holes 13c and screwed into the screw holes 14, respectively. The metal fitting 13 is attached to the instrument main body back part 2a.
[0004]
The terminal block 16 to which the power line 12 and the like are connected is mounted on the terminal block mounting piece 13a with screws (not shown). A pair of power supply line insertion holes 17a, another pair of power supply line insertion holes 17b, and a pair of ground line insertion holes 18 are provided vertically on the upper surface 16a of the terminal block 16, respectively. Reference numerals 17 b and 18 are opened to face the power line through hole 11. Further, on one side surface 16b of the terminal block 16, a pair of load wire (in-apparatus wiring) insertion holes 19a and another pair of load line (in-apparatus wiring) insertion holes 19b are respectively provided horizontally and on the side surfaces. It is open.
[0005]
In FIG. 11, reference numeral 21 denotes a substantially I-shaped support bar. This support bar 21 is provided with an upper projecting portion 22 and a lower projecting portion 23 on the upper and lower sides of the support bar main portion 21a. It is attached opposite to. An opening 24a is provided between the support bars-21.
[0006]
Reference numeral 26 denotes a support leg attached to straddle the upper overhanging portion 22 of the pair of support bars 21. The support leg 26 has a support leg main portion 27 having a substantially U-shaped cross section and both ends of the main portion 27. A placement unit 28 is provided. As shown in FIG. 12, the mounting portion 28 is disposed outwardly in a substantially rectangular mounting piece (inner) 28 b provided continuously from one side of the end portion of the main portion 27 and a central portion of the end portion of the main portion 27. It comprises a mounting piece (outside) 28a having a substantially L-shape. Further, a hole 32b is provided on the other side of the end portion of the main portion 27, and a presser spring main portion 30a made of a spring material having a substantially rectangular shape and provided with a hole 32a at the upper end, and a cross section approximately U opened upward at the lower end of the main portion 30a. The support spring 26 is formed so that the holding piece 30b can be attached to the outside by inserting the rivet 31 into the holding spring hole 32a and the supporting leg hole 32b. Clamp on both sides and fix.
[0007]
Reference numeral 2 denotes an instrument body to which a terminal base mounting bracket 13 to which a terminal base 16 is attached is attached, and socket mounting bases 3 are attached to both ends in the longitudinal direction of the inner surface of the instrument main body rear surface 2a. A lamp socket 7 to which a straight tube type fluorescent lamp (not shown) is attached is attached to the lower surface of 3 so as to face each other. Further, a support plate 6 is attached to each other in the middle of the longitudinal direction of the inner surface of the instrument main body back portion 2a, and a mounting screw provided with a substantially I-shaped knob portion 5a on the lower surface of the support plate 6 respectively. 5 is rotatably mounted.
[0008]
In FIG. 11, reference numeral 4 denotes a reflecting plate having a substantially U-shaped cross section so as to come into contact with the lower surface of the support plate 6 attached to the inner surface of the instrument main body 2. A knob portion 5 a of an attachment screw 5 is inserted into the reflecting plate 4. Possible substantially I-shaped insertion holes (not shown) are respectively formed in the width direction.
[0009]
Explain how to install and remove lighting fixtures.
[0010]
First, the instrument body 2, the reflector 4, and the support leg 26, to which the terminal block 16, the lamp socket 7, the mounting screws 5, etc. are attached, are carried into the back of the ceiling 24. Next, both ends of the instrument body 2 in the width direction are placed on the lower projecting portion 23 of the support bar 21. Furthermore, when the mounting portions 28 provided at both ends of the support leg 26 are placed on the upper projecting portion 22 of the support bar 21, the hook pieces 30 b of the presser spring 30 of the support leg 26 bend inward (see FIG. 13). ), The support leg 26 is placed on the support bar-21. Next, the instrument body 2 is fixed to the support leg 26 from the room with the mounting screw 8. Finally, the knob portions 5a of the attachment screws 5 attached to the instrument body 2 are respectively rotated in the width direction, and the knob portions 5a are respectively inserted into insertion holes (not shown) of the reflection plate 4, and then the attachment screws. 5 is tightened to attach the reflector 4 to the inside of the instrument body 2.
[0011]
In order to remove the lighting fixture from the back of the ceiling 24, first, the knob portions 5a of the mounting screws 5 are respectively rotated in the longitudinal direction, and the reflector 4 is removed from the fixture body 2. Next, the mounting screws 8 are respectively removed from the support legs 26. Further, the instrument body 2 is tilted upward and removed from the opening 24 a of the ceiling 24. Finally, while holding the presser springs 30 provided at both ends of the support leg 26 respectively inward as shown in FIG. 13, the support leg 26 is moved upward, and the support leg 26 is supported from the support bar 21. Remove each.
[0012]
[Problems to be solved by the invention]
As described above, the conventional lighting fixtures are installed at the construction site by opening separately packed packages and carrying parts such as the support legs 26 on the back of the ceiling 24 at a high position. Assemble in the order described. For this reason, it takes a lot of time to unpack the package, and it is carried into the back of the ceiling 24 at a high position for each part. Therefore, especially when constructing a large number of lighting fixtures, fatigue accumulates and the work is troublesome. It takes. Further, after attaching the instrument main body 2 and the support leg 26 to the support bar 21 behind the dim and narrow ceiling 24, the instrument main body 2 is attached to the support leg 26 with a plurality of mounting screws 8 from the indoor side, and the reflector plate. 4 is attached with the mounting screw 5. Installation of lighting fixtures requires installation work from the back of the dim and narrow ceiling 24 and the interior of the room, which requires a lot of installation time, and it takes a lot of work, especially when many lighting fixtures are installed. However, there may be a problem with safety.
[0013]
In addition, the luminaire cannot be removed from the support bar 21 unless the mounting screw 8 is removed from the support leg 26 and the instrument body 2 and the support leg 26 are separated. Further, when the support leg 26 is removed from the support bar 21, the support leg 26 is not moved upward unless the presser springs 30 attached to both ends of the support leg 26 are bent inward. Cannot be removed from the support bar-21. For this reason, there is a problem that it takes time to remove the support leg 26 and the holding spring 30 is bent inward, so that a bending jig or the like is required.
[0014]
This invention is made | formed in view of said point, and it aims at providing the lighting fixture with which attachment and removal of a lighting fixture are easy.
[0015]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the lighting fixture of the present invention locks the fixture main body on a pair of support bars having locking projections on the upper portion thereof via support legs attached to the upper surface of the fixture main body. In this lighting fixture, the support leg has a substantially U-shaped cross section from the support leg main part and the side part of the support leg bent downward from both ends in the width direction of the main part, and the width direction of the instrument body A mounting portion that is placed on the support bar at each end is formed at the lower end of the side portion of the support leg, and a through-hole extending from the end in the width direction of the main portion of the support leg to the side portion of the support leg is formed. The supporting leg has a substantially U-shaped cross section, one at both ends is locked from the outside to the locking protrusion of the one supporting bar, and the other is locked from the inside to the locking protrusion of the other supporting bar. the locking member having a locking piece for locking the width direction section slidably integrally Attached, and moving the locking member relative to the support leg in a direction to release or lock the locking piece of the locking member and the locking protrusion of the support bar, A fixing member for fixing the locking member and the support leg at each position is provided.
In the present invention, a slit-like attachment hole for attaching the support leg is provided in the longitudinal direction on the back surface portion of the luminaire main body, and the engagement pieces of the engagement member are respectively orthogonal to the attachment hole. A plurality of slide holes for moving the locking member in the width direction to a position where the support bar is not hooked may be opened.
[0016]
[Action]
A support leg is connected to the instrument main body by a mounting screw (A) through a slit-shaped mounting hole provided in the back surface of the instrument main body, and a slit-like slide in the width direction provided on the support leg. The locking member and the support leg are connected to each other by the mounting screw (B) through the hole (A) and the slit-like slide hole (B) provided in the width direction provided on the back surface of the instrument body. By loosening the mounting screw (B) connected to the locking member and moving the locking member along the slit-like slide hole (A) provided in the support leg, the locking member is The substantially V-shaped locking pieces that move together with the mounting screws (B) and are formed at both ends of the locking member can avoid the upper overhanging portion at the upper portion of the support bar. And the instrument body can be removed from the support bar. Even when the instrument body is attached to the support bar, it is easy to just loosen the attachment screw (B) and move the locking member along the slide hole (A) while keeping the instrument body and the support leg connected. The instrument body can be attached to the support bar.
[0017]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to FIGS. In addition, the same number is attached and demonstrated for the same structure as a prior art.
[0018]
FIG. 8 is a perspective view showing a state of the terminal block cover attached to the power line insertion hole of the present invention. As shown in FIG. 10, the device body 2 according to the prior art has a power line insertion hole 11 that is opposed to the terminal block upper surface 16 a, so that dust on the back of the ceiling is connected to the power line via the power line insertion hole 11. It is easy to apply directly to the terminal block upper surface 16a provided with an insertion hole or the like. For this reason, in long-term use, dust enters between the power line inserted into the power line insertion hole, the earth insertion hole, and the load line insertion hole. This intrusion dust becomes the resistance of the electrical conduction part of the terminal block and increases the resistance of the electrical conduction part. As a result, the heat generated in the power line and the conductive portion is increased, and in the worst case, the terminal block 16 may be burned out.
[0019]
Therefore, a terminal block cover 40 shown in FIG. 8A is attached to the power line insertion hole 11 of the instrument body 2 so that dust is not directly applied to the terminal block upper surface 16a. The terminal block cover 40 having a substantially U-shaped cross section is bent substantially at a right angle so as to face downward from both ends of the main part 40a and a terminal block cover main part 40a having a substantially rectangular shape on the upper surface. A substantially L-shaped locking portion 41 having locking claws 41a bent in the direction is formed. Further, the engagement portion 42 is formed by bending the main portion 40a from both front ends of the main portion 40a downward and at substantially right angles to form an engagement portion 42, and an engagement claw 42a protruding forward at the lower corner of the front end of the engagement portion 42 is formed. Form each one. Further, a gap 44 is formed between the locking part 41 and the engaging part 42 so that the locking claw 41a of the locking part 41 can be deformed inward.
[0020]
Next, the dimensional relationship between the terminal block cover 40 and the power line insertion hole 11 is shown. The longitudinal direction B and width D of the power line insertion hole 11 are slightly smaller than the longitudinal direction A and width C of the cover main portion 40a of the terminal block cover 40, and the height direction Y of the terminal block cover 40 is the terminal block mounting bracket. It is formed slightly smaller than the height Z of 13.
[0021]
A procedure for attaching the terminal block cover 40 and the like to the instrument body 2 will be described with reference to FIGS.
[0022]
First, the terminal base mounting bracket 13 to which the terminal base 16 is attached is screwed to the instrument body 2 with the screw 15. Next, the tip of the power supply line 12 is bent into a substantially L shape, and the pair of lead wires of the power supply line 12 are inserted into the pair of power supply line insertion holes 17 of the terminal block 16 through the power supply line insertion holes 11 respectively. Connect to the electrical conduction part. Finally, while inserting the engaging claws 42a of the terminal block cover 40 into the gaps 45 formed between the inner surface of the rising piece 13a of the terminal block mounting bracket 13 and the terminal block 16, respectively, The locking claw 41a provided facing each other is deformed inward, and the terminal block cover 40 is attached to the power line insertion hole 11. The engaging claw 42a engages between the bottom surface 16c of the terminal block mounting bracket 13 and the inner surface of the instrument body rear surface portion 2a, and the lower end abutting portion 43 of the engaging portion 42 of the terminal block cover 40 is mounted on the terminal block. It is placed on the bottom surface 16 c of the metal fitting 13. Further, the locking claw 41 a is locked to the instrument main body back surface portion 2 a so that the terminal block cover 40 does not come off from the power line insertion hole 11. The height (XY) of the opening of the terminal block cover 40 is such that the power supply line 12 can be attached to the terminal block 16 as shown in FIG.
[0023]
Since the terminal block cover 40 covering the upper surface of the terminal block 16 is detachably provided in the power line insertion hole 11, dust on the back of the ceiling is less likely to be directly applied to the upper surface of the terminal block, and there is an adverse effect due to falling dust. Less.
[0024]
FIG. 3 is a perspective view showing the locking member and the supporting leg according to the present invention, and 50 is a locking member for locking the supporting leg 55 placed on the supporting bar 21 to the supporting bar 21. The locking member 50 is formed with a locking member main portion 50a having a substantially rectangular shape at the top and a substantially right angle downward from both ends in the width direction, and has a substantially V-shaped locking piece 51 opened upward at the lower end. And a falling piece 50b. Further, a screw hole (A) 52 in which a female screw is formed is provided in the center of the locking member main portion 50a.
[0025]
55 is a support leg that is placed across the support bar-21, and this support leg 55 is formed with a substantially rectangular support leg main portion 56 on the upper part and substantially perpendicularly downward from both ends in the width direction. The support leg side portions 57 each have a placement portion 58 in the opposite direction on the outer surface of the lower end. Further, reinforcing ribs 61 formed at substantially right angles upward are formed at both ends in the longitudinal direction of the support leg main portion 56 and the support leg side portion 57 of the support leg 55.
[0026]
Further, the support leg 55 extends from both ends in the width direction of the support leg main part 56 to the support leg side part 57 and opens to a base part of one reinforcing rib 61a in a substantially rectangular shape. A through hole 59 into which 50b can be inserted is provided. Further, at the edge of the through-hole 59 of the support leg main portion 56, the guide leg 56a is cut and formed facing the one reinforcing rib 61a, and the support leg main portion sandwiched between the through-holes 59 is formed. A slit-like slide hole (A) 62a is formed in the width direction substantially at the center of 56. The width of the slide hole (A) 62a is larger than the male screw of the mounting screw (B) 65 and smaller than the head 65a. Further, a screw hole (B) 63 in which a female screw for attaching the mounting screw (A) 64 is formed at the center in the width direction of the support leg main portion 56 not sandwiched between the through holes 59.
[0027]
The mounting portions 58 provided at both ends of the support leg side portion 57 are connected to the lower end of the support leg side portion 57 on the other reinforcing rib 61b side, and the same mounting piece (inner) 58b and support leg side as in the prior art. A mounting piece (outside) 58a similar to the prior art formed in an L-shaped cross section is formed in the center of the lower end of the portion 57.
[0028]
A plurality of slit-like attachment holes 66 for attaching the support legs 55 are provided in the longitudinal direction in the center of the instrument main body rear surface portion 2a in the longitudinal direction, and a plurality of slide holes (B) 62b are attached, for example, perpendicular to the attachment holes 66. When the locking member 50 is opened in the direction in which the locking member 50 is moved in front of and behind the hole 66 (in the case of the embodiment, leftward from the center in the width direction of the back surface portion 2a) and the locking member 50 is moved, Each of the locking pieces 51 has a shape that can move to a position where it does not catch on the upper overhanging portion 22 of the support bar 21. The width of the slide hole (B) 62b is such that the head 65a of the mounting screw (B) 65 is inserted.
[0029]
Although the slide hole (A) 62a is provided in the support leg and the screw hole (A) 52 is provided in the locking member 50, the slide hole (A) is used as the lock member and the screw hole (A) is used as the support leg. The structure provided in may be sufficient. In this case, the operation of the mounting screw (B) 65 is operated from the back side of the instrument body.
[0030]
Next, the attachment and removal procedures of the lighting fixture of the above embodiment will be described.
[0031]
Initially, the attachment procedure of a lighting fixture is demonstrated.
[0032]
The terminal block 16, the lamp socket 7, the reflector 4, etc. are attached to the instrument body 2 before being carried into the ceiling. Further, as shown in FIG. 3, one locking piece 51 of the locking member 50 is inserted into the through hole 59 of the support leg 55, and the locking member is interposed between the one reinforcing rib 61a and the guide piece 56a. 50 is mounted, and a mounting screw (B) 65 having a long head 65a is screwed into a screw hole (A) 52 of the locking member 50 via a slide hole (A) 62a of the support leg 55 and supported. The leg assembly 69 is assumed. The reason why the head 65a is lengthened is to facilitate the tightening and loosening operation of the mounting screw (B) 65.
[0033]
Next, the support leg assembly 69 is placed in accordance with the slide hole (B) 62b of the instrument main body back part 2a as shown in FIG. 4, and the mounting screw (A) 64 is attached to the instrument main body 2 in a slit shape. 2 is screwed into the screw hole (B) 63 of the support leg 55 through the hole 66 to form an instrument body assembly 70 shown in FIG.
[0034]
Finally, as shown in FIG. 7, the instrument body assembly 70 is rotated 90 degrees and is laterally carried into the ceiling, and the mounting portion 58 of the support leg 55 of the instrument body assembly 70 is placed on the support bar 21. Is placed. Next, the mounting screw (B) 65 is loosened, and the locking member 50 moves to the right along the slide hole (B) 62b until the locking piece 51 of the locking member 50 abuts against the support bar main portion 21a. After that (FIG. 1), the fixing screw (B) 65 is tightened to fix the locking member 50 to the support leg 55. The plurality of slide holes (B) 62b are provided in the mounting hole 66 of the instrument body 2 when an obstacle such as piping is installed behind the ceiling and the support leg 55 cannot be mounted. This is because the leg 55 is moved to a position where there is no obstacle. The reflector 4 is provided with a slide hole and a round hole (not shown) at positions corresponding to the slide hole (A) 62a and the screw hole (B) 63 of the support leg 55.
[0035]
Alternatively, various parts may be assembled after the various parts are carried into the ceiling.
[0036]
A procedure for removing the lighting fixture will be described.
[0037]
First, the mounting screw (B) 65 is loosened, and the locking piece 51 of the locking member 50 is disengaged from the upper overhanging portion 22 of the support bar 21 in the left direction along the slide hole (B) 62b. Move to position. Next, after the instrument body assembly 70 is moved upward (FIG. 6), the instrument body assembly 70 is rotated 90 degrees to the lateral direction (FIG. 7), and the instrument 24 is opened from the opening 24a opened between the support bars 21. The main assembly 70 is unloaded.
[0038]
When mounting the lighting fixture, the mounting screws (A) and the locking members are simply carried into the back of the ceiling with the assembly of the components such as the supporting legs and the locking members, and simply fixed to the supporting legs. Can be easily assembled on the support bar only by operating the mounting screw (A) for sliding the slider.
[0039]
Furthermore, when removing take luminaire locking member operations only a simple supporting bar of the mounting screw for sliding (A) - the concatenation of parts such as the locking member it is possible to remove take instrument body from It can be easily carried out from the back of the ceiling with the instrument body assembled.
[0040]
【The invention's effect】
As described above in detail, according to the present invention, the mounting screws (B) are loosened while the plurality of support legs are connected to the instrument body, and the slide-like slide provided with the locking members in the width direction of the support legs. By simply moving along the hole (A), the locking state of the locking piece of the locking member and the support bar is released or locked, and the instrument body can be easily removed from the support bar, or the support bar can be removed. -Easy to install on top.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state in which an instrument body according to an embodiment of the present invention is mounted on a support bar.
FIG. 2 is a perspective view showing an external appearance of an instrument body assembly in the same embodiment.
FIG. 3 is a perspective view showing a locking member and a supporting leg in the same embodiment.
FIG. 4 is a perspective view showing a support leg assembly and an instrument body in the same embodiment.
FIG. 5 is a sectional view showing a procedure for removing the instrument body in the same embodiment and showing a state in which the locking of the locking member is released.
FIG. 6 is a sectional view showing a procedure for removing the instrument main body in the same embodiment, and shows a state in which the instrument main body is moved upward.
FIG. 7 is a sectional view showing a procedure for removing the instrument main body in the same embodiment and showing a state before the instrument main body is turned sideways and moved downward from the ceiling.
FIG. 8 shows a state in which a terminal block is attached in the same embodiment;
(A) is a perspective view which shows a terminal block cover.
(B) is a perspective view which shows a part of instrument main body.
(C) is a perspective view which shows the state which attached the terminal block to the terminal block attachment bracket.
FIG. 9 is a side view showing a state in which the terminal block mounting bracket according to the embodiment is attached to the instrument body. (B) is a top view. (C) is a front view.
FIG. 10 is a perspective view showing a state in which a conventional terminal block mounting bracket is mounted on an instrument body.
FIG. 11 is a cross-sectional view showing a state in which a conventional instrument body is mounted on a support bar.
FIG. 12 is a perspective view showing one of the mounting portions of the conventional support leg.
FIG. 13 is a cross-sectional view showing a state in which a conventional instrument body is removed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 2 ... Instrument main body, 2a ... Back surface (upper surface of instrument main body), 21 ... Support bar, 22 ... Upper overhang | projection part (locking protrusion), 50 ... Locking member, 51 ... Locking piece, 55 ... Support leg 56, support leg main part, 57 ... support leg side part, 58 ... mounting part, 59 ... through hole, 62a ... slide hole (A), 62b ... slide hole (B), 63 ... screw hole, 64 ... mounting screws (A), 65 ... mounting screws (B) (fixing members).

Claims

In the lighting fixture which locks an instrument main body on a pair of support bars which have a locking projection on the upper part via a support leg attached to the upper surface of the instrument main body,
The support leg has a substantially U-shaped cross section from a support leg main part and side parts of the support leg bent downward from both ends of the main part in the width direction. -Forming a mounting portion to be placed on the lower end of the side portion of the support leg , and providing a through hole extending from the end in the width direction of the main portion of the support leg to the side portion of the support leg ,
The support leg has a substantially U-shaped cross section, one at each end is locked from the outside to the locking projection of one of the support bars, and the other is from the inside to the locking projection of the other support bar. the locking member having a locking piece for locking the slidably mounted integrally in the width direction,
The locking member is moved with respect to the support leg in a direction to release or lock the locking piece of the locking member and the locking protrusion of the support bar, and each position is moved. And a fixing member for fixing the locking member and the support leg.

A slit-like mounting hole for attaching the support leg is provided in the longitudinal direction on the back surface of the lighting fixture body, and the locking pieces of the locking member are respectively hooked on the support bar perpendicular to the mounting hole. The lighting apparatus according to claim 1, wherein a plurality of slide holes are provided for moving the locking member in the width direction to a position where the locking member does not exist.