JP4154822B2

JP4154822B2 - lighting equipment

Info

Publication number: JP4154822B2
Application number: JP35655899A
Authority: JP
Inventors: 宏和平井
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1999-12-15
Filing date: 1999-12-15
Publication date: 2008-09-24
Anticipated expiration: 2019-12-15
Also published as: JP2001176322A

Description

【０００１】
【発明の属する技術分野】
本発明は、アームを有する照明器具に関するものである。
【０００２】
【従来の技術】
この種の照明器具としてスポットライトがあり、図６および図７に示すように、ランプ１が備えられた器具本体５０と、略円柱状の柱部２１および柱部２１の先端に略垂直に設けられた略円柱状の摺動部２２から成る略Ｔ字状のアーム２０と、弾性を有する板材から成り、アーム２０の摺動部２２を器具本体５０との間に挟み込むばね片６０とを備えている。
【０００３】
器具本体５０は、図７に示すように、長手方向の一端にソケット１ａが備えられてランプ１が取り付けられた略円筒状のケース５１と、ケース５１の長手方向のランプ１が取り付けられていない一端に形成される開口面５２を塞ぐ略円盤状のカバー５５とを具備し、ケース５１内部の開口面５２付近にはアーム２０の摺動部２２を受ける凹状のアーム受部５４が開口面５２に略対向するように形成され、ケース５１の開口面５２側の周縁には凹部５６が凹設されている。また、カバー５５の周縁部には凹所５５ａが中心に向かって凹設され、凹所５５ａと反対側の周縁付近には後述のねじ７１を調整するための調整穴５５ｂが形成されている。
【０００４】
ばね片６０は、基部６１の両端から１対のリブ６２，６２が略平行に突出して略コ字状に形成され、リブ６２，６２はそれぞれ略円弧状に曲げられるとともに、それぞれのリブ６２の先端部を外側に折り曲げて成る取付部６３を有している。また、それぞれの取付部６３には、器具本体５０に取り付けるためのねじ７０を挿通する取付用のねじ挿通孔６３ａが形成され、基部６１の略中央部には、器具本体５０に取り付けるとともに、ばね片６０がアーム２０の摺動部２２を器具本体５０のアーム受部５４との間に挟み込んで保持する保持力を調整するためのねじ７１が挿通される取付用のねじ挿通孔６１ａが形成されている。
【０００５】
このようなばね片６０を用いて、アーム２０に器具本体５０を取り付けるときには、まず、アーム２０の摺動部２２を器具本体５０のアーム受部５４に配置する。次に、ばね片６０の１対のリブ６２，６２が、アーム２０の柱部２１を挟んで、アーム２０の摺動部２２を覆うようにばね片６０の取付部６３を器具本体５０に当接し、ねじ７０を取付用のねじ挿通孔６３ａに挿通して器具本体５０に螺着する。次に、ねじ７１を基部６１の取付用のねじ挿通孔６１ａに挿通して、器具本体５０の取付用のねじ挿通孔６１ａに略対向する部位に形成されたねじ穴５３にねじ７１を螺着することによって、アーム２０の摺動部２２をばね片６０のリブ６２，６２とアーム受部５４との間に挟み込み、器具本体５０をアーム２０に回動自在に取り付ける。
【０００６】
そして、ばね片６０が取り付けられた器具本体５０のケース５１の開口面５２に、カバー５５を凹所５５ａがケース５１の凹部５４と連続するように取り付けて、図７に示す照明器具が完成する。
【０００７】
このように取り付けられた器具本体５０は、アーム２０の柱部２１をカバー５５の凹所５５ａおよびケース５１の凹部５６を通して外側に突出させ、アーム２０の摺動部２２を支点として回動させることができる。また、調整穴５５ｂの内側にはねじ７１の頭部が配置されており、例えばドライバーなどを用いてねじ７１を締め付け、又は緩めることにより、アーム２０の摺動部２２を保持する保持力を調整することができ、ねじ７１を緩めて器具本体５０を回動させたり、ねじ７１を締め付けて器具本体５０を固定したりすることができる。
【０００８】
さらに、このような照明器具は、アーム２０の摺動部２２が形成されていない一端側に備えられた台座４を例えば天井などの造営面に取り付けることによって保持され、アーム２０に対して回動させることによりランプ１の向きをかえて照らすことができる。
【０００９】
【発明が解決しようとする課題】
しかしながら、上述のような従来の照明器具のばね片６０は、形状が複雑であるために製造ばらつき要因が多く、アーム２０の摺動部２２を保持する保持力にばらつきが生じるとともに製造コストがかさむという問題があった。さらに、台座４を天井に取り付けて斜め下向きに照射するような最も多い使用状態では、調整穴５５ｂが目立つのでデザイン的に好ましくないといった問題があった。
【００１０】
本発明は上記問題点の解決を目的とするものであり、製造コストを抑えるとともにアームを保持する保持力のばらつきを抑えた照明器具を提供する。
【００１１】
【課題を解決するための手段】
上記目的を達成するために、請求項１の発明は、ランプを備えた器具本体と、器具本体を支持するアームと、弾性を有する板材を折り曲げて略Ｌ字状に形成され、アームの先端部に器具本体を回動自在に取り付けるばね片とを具備し、ばね片は、折り曲げられた角部にアームを挿通する開口部を有し、且つ角部を挟む長手方向の両端部に器具本体に取り付けるねじを挿通する取付用のねじ挿通孔を有し、角部周辺と器具本体に形成されたアーム受部との間に、アームの先端に形成された摺動部を挟み込んで器具本体にねじ止めされることを特徴とし、ばね片の形状を従来よりも単純にしたことによってコストを低減することができるとともに、製造ばらつき要因を少なくすることができ、その結果、ばね片が器具本体との間にアームの摺動部を保持する保持力のばらつきを抑えて品質を安定させることができる。
【００１２】
請求項２の発明は、請求項１の発明において、ばね片の角部を挟む長手方向の一端側には、器具本体に取り付ける補助用のねじ挿通孔が、開口部との間に取付用のねじ挿通孔を挟んで形成されたことを特徴とし、ばね片を器具本体に取り付けるとき、先に、補助用のねじ挿通孔と、ばね片の補助用のねじ挿通孔が形成されていない他端側に形成された取付用のねじ挿通孔にねじを挿通して器具本体に螺着した後、補助用のねじ挿通孔が形成された一端側の取付用のねじ挿通孔にねじを挿通して器具本体に螺着することによって、ばね片の他端側の取付用のねじ挿通孔にねじを挿通して器具本体に螺着するときのばね片の跳ね上がりを抑えることができ、その結果、組立性を向上させることができる。
【００１３】
請求項３の発明は、請求項１又は２の発明において、ばね片の取付用のねじ挿通孔と開口部との間には、アームの摺動部を挟み込んで保持する保持力を調整するための調整用ねじが挿通される調整用のねじ挿通孔が形成され、調整用のねじ挿通孔は、器具本体に形成され、調整用ねじが螺着されるねじ穴に略対向配置されたことを特徴とし、調整用のねじ挿通孔に挿通された調整用ねじを器具本体のねじ穴に螺着して締め付けることによって、ばね片がアームの摺動部をアーム受部側に押圧し、調整用ねじの締め付ける度合いに応じてばね片のアームの摺動部を保持する保持力を調整することができ、その結果、調整用ねじにより保持力を調整して器具本体を固定または回動することができる。
【００１４】
請求項４の発明は、請求項３の発明において、ばね片は、アームの器具本体に取り付けられていない後端側が固定される被取付面に調整用のねじ挿通孔の開口面が略対向するように配置されたことを特徴とし、調整用のねじ挿通孔の開口面が被取付面に略対向することによって、調整用のねじ挿通孔を目立たなくして外観の見栄えを良くすることができる。特に、アームを天井などの被取付面に取り付けて、器具本体を斜め下向きに配置するような最も多い使用状態では、調整用のねじ挿通孔は天井側に隠れて見栄えを良くすることができる。
【００１５】
請求項５の発明は、請求項１〜４の何れかの発明において、ばね片は、角部を挟む長手方向の一端部を外側に折曲してなる突片を有し、突片に取付用のねじ挿通孔が形成されたことを特徴とし、ばね片の長手方向の両端部に形成された取付用のねじ挿通孔のそれぞれの開口面を略同じ方向に向けることができ、その結果、取付用のねじを全て同じ方向から締め付けることができて、組立性を向上させることができる。
【００１６】
【発明の実施の形態】
（実施形態１）
本実施形態における基本構成は従来例と共通するために共通する部分については同一の符号を付して説明を省略し、本実施形態の特徴となる部分についてのみ詳細に説明する。
【００１７】
本実施形態では、図１に示すように、ランプ１を備えた器具本体１０と、アーム２０と、弾性を有する板材から成り、アーム２０の摺動部２２を器具本体１０との間に挟み込むばね片３０とを備えている。
【００１８】
ばね片３０は、略矩形の板材の略中央部を折り曲げて略Ｌ字状に形成され、折り曲げられた角部にはアーム２０の柱部２１を挿通する開口部３１が形成されている。また、ばね片３０の角部を挟む長手方向の一端側の略中央部には、ばね片３０を器具本体１０に取り付けるねじ３を挿通する取付用のねじ挿通孔３３が１つ形成され、他端側の開口部３１周辺にも同様の取付用のねじ挿通孔３４が２つ形成されている。
【００１９】
器具本体１０は、内部にランプ１を備えた略円筒状のケース１１と、ケース１１の長手方向の一端に形成される開口面１２を塞ぐカバー１５と、ばね片３０を取り付ける固定部１３とを具備し、固定部１３には、アーム２０の摺動部２２を受ける凹状のアーム受部１４が、ケース１１の開口面１２を形成する周縁に設けられた凹部１６付近に配置されるように設けられ、固定部１３のばね片３０に形成された各取付用のねじ挿通孔３３，３４に対応する部位には、それぞれねじ穴１３ａが形成されている。また、カバー１５は、略円盤状の主部１５ａと主部１５ａの周縁部から略垂直に突設した周壁１５ｂとから成り、周壁１５ｂ及び主部１５ａには連続して凹設された凹所１５ｃが形成されている。
【００２０】
このような器具本体１０を上述のばね片３０を用いてアーム２０に取り付けるときには、ばね片３０の開口部３１にアーム２０の柱部２１を挿通して、ばね片３０の角部を挟む長手方向に略直交する方向の両側部３０ａ，３０ａが器具本体１０のアーム受部１４との間にアーム２０の摺動部２２を挟み込むように、ばね片３０を器具本体１０の固定部１３に配置し、各取付用のねじ挿通孔３３，３４にねじ３を挿通し、固定部１３に設けられたねじ穴１３ａに螺着することによって、ばね片３０を固定部１３に固定する。そして、カバー１５を凹所１５ｃが器具本体１０の凹部１６に連続するように取り付ける。
【００２１】
このように取り付けられた器具本体１０は器具本体１０の凹部１６及び凹所１５ｃからアーム２０の柱部２１を突出させ、アーム２０の摺動部２２を支点として回動自在となる。
【００２２】
本実施形態では、ばね片３０が、従来例のように略円弧状に形成さたリブ６２，６２を有することなく、開口部３１と取付用のねじ挿通孔３３，３４を有する略Ｌ字状の単純な形状に形成されたことによって、製造コストを低減することができるとともに、製造ばらつき要因を少なくすることができ、その結果、ばね片３０がアーム受部１４との間にアーム２０の摺動部２２を挟み込んで保持する保持力のばらつきを抑えて品質を安定させることができる。
（実施形態２）
本実施形態における基本構成は実施形態１と共通するために共通する部分については同一の符号を付して説明を省略し、本実施形態の特徴となる部分についてのみ詳細に説明する。
【００２３】
本実施形態のばね片３０は、図２に示すように、取付用のねじ挿通孔３４が設けられた一端側が角部を挟む長手方向に実施形態１よりも長く形成され、一端側の周縁略中央部には、器具本体１０の固定部１３に取り付ける補助用のねじ挿通孔３５が形成されている。
【００２４】
このようなばね片３０を用いて器具本体１０をアーム２０に取り付けるときには、実施形態１と同様に開口部３１にアーム２０の柱部２１を挿通して、ばね片３０をアーム受部１４との間にアーム２０の摺動部２２を挟み込んで配置する。そして、先に、取付用のねじ挿通孔３３及び補助用のねじ挿通孔３５にそれぞれねじ３を挿通し、それぞれ固定部１３に形成されたねじ穴１３ａ，１３ｂに螺着する。なお、補助用のねじ挿通孔３５に挿通されたねじ３が螺着されるねじ穴１３ｂは、固定部１３のねじ穴１３ａが形成された面から、ケース１１の開口面１２側に突設された突部１３ｃに形成されている。
【００２５】
次に、取付用のばね挿通孔３４，３４にねじ３を挿通して、それぞれに対応するねじ穴１３ａ，１３ａに螺着することによってばね片３０が器具本体１０の固定部１３に固定され、最後にカバー１５をケース１１の開口面１２に取り付ける。
【００２６】
ところで、実施形態１では、先にばね片３０のねじ挿通孔３３にねじ３を挿通してねじ穴１３ａに螺着したとき、ばね片３０のねじ挿通孔３４，３４が形成された一端側が跳ね上がって、ねじ挿通孔３４，３４にねじ３を挿通して螺着することが難しくなる。
【００２７】
しかし、本実施形態では、補助用のねじ挿通孔３４が形成され、取付用のねじ挿通孔３４，３４よりも先に補助用のねじ挿通孔３４にねじ３を挿通してねじ穴１３ｂに螺着することによって、ばね片３０の跳ね上がりを抑えて、容易に取付用のねじ挿通孔３４，３４にねじ３を挿通して螺着することができ、その結果、組立性を向上させることができる。
（実施形態３）
本実施形態における基本構成は実施形態２と共通するために共通する部分については同一の符号を付して説明を省略し、本実施形態の特徴となる部分についてのみ詳細に説明する。
【００２８】
本実施形態のばね片３０は、図３に示すように、取付用のねじ挿通孔３３が設けられた一端側が角部を挟む長手方向に実施形態２のばね片３０よりも長く形成され、開口部３１と取付用のねじ挿通孔３３との間に、アーム２０の摺動部２２を挟み込んで保持するばね片３０の保持力を調整するための調整用ねじ３ａが挿通される調整用のねじ挿通孔３６が形成されている。
【００２９】
このようなばね片３０を用いて、アーム２０に器具本体１０を取り付けるときには、まず開口部３１にアーム２０の柱部２１を挿通したばね片３０を、調整用のねじ挿通孔３ａの開口面が、ケース１１の凹部１６の周縁底部に形成された凹所１６ａの内側に位置するように配置する。そして、実施形態２と同様に、アーム２０の摺動部２２をばね片３０の両側部３０ａ，３０ａとアーム受部１４との間に挟んで取付用のねじ挿通孔３３，３４，３４及び補助用のねじ挿通孔３５にねじ３を挿通し、それぞれに対応するねじ穴１３ａ，１３ｂに螺着する。次に、調整用のねじ挿通孔３６に調整用ねじ３ａを挿通し、凹所１６ａから例えばドライバーなどを用いて、固定部１３の調整用のねじ挿通孔３６に略対向する部位に形成されたねじ穴（図示せず）に螺着する。このとき、ばね片３０の調整用のねじ挿通孔３６周辺部は、固定部１３から隙間をあけて配置されているので、上述のように調整用ねじ３ａを螺着して締め付けることによって、ばね片３０の調整用のねじ挿通孔３６周辺部は固定部１３側に押し寄せられ、ばね片３０の両側部３０ａ，３０ａがアーム２０の摺動部２２をアーム受部１４に押圧し、摺動部２２を保持する保持力を増すことができる。また、逆に調整用ねじ３ａを緩めることによって保持力を弱めることができる。
【００３０】
本実施形態では、上述のようにばね片３０には、アーム２０の摺動部２２を保持する保持力を調整する調整用のねじ挿通孔３６が形成され、器具本体１０の固定部１３に調整用のねじ挿通孔３６に略対向するねじ穴が設けられたことによって、保持力を容易に調整することができる。さらに、アーム２０の摺動部２２が形成されていない一端側を天井などの造営面に固定したときには、調整用のねじ挿通孔３６の開口面が、ケース１１の凹所１６ａを通して天井に略対向することによって、器具本体１０を斜め下向きに配置するような最も多い使用状態において、調整用のねじ挿通孔３６を従来例よりも目立たなくして外観の見栄えを良くすることができる。
（実施形態４）
本実施形態における基本構成は実施形態３と共通するために共通する部分については同一の符号を付して説明を省略し、本実施形態の特徴となる部分についてのみ詳細に説明する。
【００３１】
本実施形態のばね片は、図４に示すように、取付用のねじ挿通孔３３が設けられた一端側を外側に折曲して形成された突片３３ａを有し、取付用のねじ挿通孔３３はこの突片３３ａに形成されている。
【００３２】
一方、器具本体１０の固定部１３には、図５に示すように、取付用のねじ挿通孔３３に挿通されるねじ３に対応するねじ穴１３ａが、ねじ穴１３ａの開口面をケース１１の開口面１２に略対向させるように形成されている。
【００３３】
このような器具本体１０をばね片３０を用いてアーム２０に取り付けるときには、ケース１１の開口面１２側から補助用のねじ挿通孔３５及び取付用のねじ挿通孔３３，３４，３４にねじ３ａ，３を挿通して、それぞれに対応したねじ穴１３ａ，１３ｂに螺着して、ばね片３０を固定部１３に固定する。そして、実施形態３と同様にケース１１の凹所１６ａから調整用のねじ挿通孔３６に調整用ねじ３ａを挿通し、固定部１３に設けられたねじ穴１３ｄに螺着してアーム２０の摺動部２２を保持する保持力を調整し、最後にカバー１５をケース１１に取り付ける。
【００３４】
組み立てられた本実施形態の照明器具は、図５に示すように、アーム２０の摺動部２２が形成されていない一端に、屋内配線に接続された端子台２を備えた台座４が取り付けられており、台座４を例えば天井などの造営面に固定して保持される。端子台２は器具本体１０のソケット１ａに、アーム２０の内部を挿通するケーブルで接続されており、端子台２からソケット１ａを介してランプ１に電力が供給されるとともに、器具本体１０をアーム２０の摺動部２２を支点に回動させることによって、ランプ１の向きをかえて照らすことができる。
【００３５】
ここで、実施形態１〜３では、一端側のねじ挿通孔３３と他端側のねじ挿通孔３４，３４の向きが異なっているために、取付用のねじ３を異なる方向から締め付けなければならないが、本実施形態では、ばね片３０に突片３３ａを設け、この突片３３ａに取付用のねじ挿通孔３３を形成しているので、ケース１１の開口面１２側から取付用のねじ挿通孔３３，３４，３４及び補助用のねじ挿通孔３５にねじ３を挿通して、それぞれに対応したねじ穴１３ａ，１３ｂに螺着することができ、その結果、取付用のねじ３を全て同じ方向から締め付けることができるため、組立性を向上させることができるという利点がある。
【００３６】
【発明の効果】
請求項１の発明は、ランプを備えた器具本体と、器具本体を支持するアームと、弾性を有する板材を折り曲げて略Ｌ字状に形成され、アームの先端部に器具本体を回動自在に取り付けるばね片とを具備し、ばね片は、折り曲げられた角部にアームを挿通する開口部を有し、且つ角部を挟む長手方向の両端部に器具本体に取り付けるねじを挿通する取付用のねじ挿通孔を有し、角部周辺と器具本体に形成されたアーム受部との間に、アームの先端に形成された摺動部を挟み込んで器具本体にねじ止めされるので、ばね片の形状を従来よりも単純にしたことによってコストを低減することができるとともに、製造ばらつき要因を少なくすることができ、その結果、ばね片が器具本体との間にアームの摺動部を保持する保持力のばらつきを抑えて品質を安定させることができるという効果がある。
【００３７】
請求項２の発明は、ばね片の角部を挟む長手方向の一端側には、器具本体に取り付ける補助用のねじ挿通孔が、開口部との間に取付用のねじ挿通孔を挟んで形成されたので、ばね片を器具本体に取り付けるとき、先に、補助用のねじ挿通孔と、ばね片の補助用のねじ挿通孔が形成されていない他端側に形成された取付用のねじ挿通孔にねじを挿通して器具本体に螺着した後、補助用のねじ挿通孔が形成された一端側の取付用のねじ挿通孔にねじを挿通して器具本体に螺着することによって、ばね片の他端側の取付用のねじ挿通孔にねじを挿通して器具本体に螺着するときのばね片の跳ね上がりを抑えることができ、その結果、組立性を向上させることができるという効果がある。
【００３８】
請求項３の発明は、ばね片の取付用のねじ挿通孔と開口部との間には、アームの摺動部を挟み込んで保持する保持力を調整するための調整用ねじが挿通される調整用のねじ挿通孔が形成され、調整用のねじ挿通孔は、器具本体に形成され、調整用ねじが螺着されるねじ穴に略対向配置されたので、調整用のねじ挿通孔に挿通された調整用ねじを器具本体のねじ穴に螺着して締め付けることによって、ばね片がアームの摺動部をアーム受部側に押圧し、調整用ねじの締め付ける度合いに応じてばね片のアームの摺動部を保持する保持力を調整することができ、その結果、調整用ねじにより保持力を調整して器具本体を固定または回動することができるという効果がある。
【００３９】
請求項４の発明は、ばね片は、アームの器具本体に取り付けられていない後端側が固定される被取付面に調整用のねじ挿通孔の開口面が略対向するように配置されたので、調整用のねじ挿通孔の開口面が被取付面に略対向することによって、調整用のねじ挿通孔を目立たなくして外観の見栄えを良くすることができるという効果がある。特に、アームを天井などの被取付面に取り付けて、器具本体を斜め下向きに配置するような最も多い使用状態では、調整用のねじ挿通孔は天井側に隠れて見栄えを良くすることができるという効果がある。
【００４０】
請求項５の発明は、ばね片は、角部を挟む長手方向の一端部を外側に折曲してなる突片を有し、突片に取付用のねじ挿通孔が形成されたので、ばね片の長手方向の両端部に形成された取付用のねじ挿通孔のそれぞれの開口面を略同じ方向に向けることができ、その結果、取付用のねじを全て同じ方向から締め付けることができて、組立性を向上させることができるという効果がある。
【図面の簡単な説明】
【図１】実施形態１を示す分解斜視図である。
【図２】実施形態２を示す分解斜視図である。
【図３】実施形態３を示す分解斜視図である。
【図４】実施形態４を示す分解斜視図である。
【図５】同上の側面断面図である。
【図６】従来例を示す分解斜視図である。
【図７】同上の側面断面図である。
【符号の説明】
１０器具本体
１４アーム受部
１５カバー
２０アーム
２１摺動部
３０ばね片
３１開口部
３３，３４取付用のねじ挿通孔[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting fixture having an arm.
[0002]
[Prior art]
As this type of lighting fixture, there is a spotlight. As shown in FIGS. 6 and 7, as shown in FIGS. 6 and 7, the fixture main body 50 provided with the lamp 1, the substantially columnar column 21, and the column portion 21 are provided substantially vertically. A substantially T-shaped arm 20 composed of a substantially cylindrical sliding portion 22 and a spring piece 60 which is made of an elastic plate and sandwiches the sliding portion 22 of the arm 20 between the instrument main body 50. ing.
[0003]
As shown in FIG. 7, the instrument body 50 is provided with a substantially cylindrical case 51 provided with a socket 1 a at one end in the longitudinal direction and attached with the lamp 1, and the lamp 1 in the longitudinal direction of the case 51 is not attached. A substantially disc-shaped cover 55 that closes the opening surface 52 formed at one end is provided, and a concave arm receiving portion 54 that receives the sliding portion 22 of the arm 20 is provided in the vicinity of the opening surface 52 inside the case 51. A recess 56 is formed in the periphery of the case 51 on the opening surface 52 side. Further, a recess 55a is formed in the periphery of the cover 55 toward the center, and an adjustment hole 55b for adjusting a screw 71 described later is formed in the vicinity of the periphery opposite to the recess 55a.
[0004]
The spring piece 60 is formed in a substantially U-shape with a pair of ribs 62 and 62 projecting substantially in parallel from both ends of the base portion 61, and the ribs 62 and 62 are each bent into a substantially arcuate shape. It has an attachment part 63 formed by bending the tip part outward. Each attachment portion 63 is formed with a screw insertion hole 63a for attachment through which a screw 70 for attachment to the instrument main body 50 is inserted, and attached to the instrument main body 50 at a substantially central portion of the base 61, and a spring. A screw insertion hole 61a for attachment through which a screw 71 for adjusting a holding force for the piece 60 to hold the sliding portion 22 of the arm 20 between the arm receiving portion 54 of the instrument main body 50 and hold it is formed. ing.
[0005]
When attaching the instrument main body 50 to the arm 20 using such a spring piece 60, first, the sliding portion 22 of the arm 20 is disposed on the arm receiving portion 54 of the instrument main body 50. Next, the attachment portion 63 of the spring piece 60 is abutted against the instrument body 50 so that the pair of ribs 62, 62 of the spring piece 60 sandwich the column portion 21 of the arm 20 and cover the sliding portion 22 of the arm 20. Then, the screw 70 is inserted into the mounting screw insertion hole 63a and screwed into the instrument body 50. Next, the screw 71 is inserted into the screw insertion hole 61a for attachment of the base 61, and the screw 71 is screwed into the screw hole 53 formed at a portion substantially opposite to the screw insertion hole 61a for attachment of the instrument body 50. By doing so, the sliding portion 22 of the arm 20 is sandwiched between the ribs 62 and 62 of the spring piece 60 and the arm receiving portion 54, and the instrument body 50 is rotatably attached to the arm 20.
[0006]
Then, the cover 55 is attached to the opening surface 52 of the case 51 of the fixture body 50 to which the spring piece 60 is attached so that the recess 55a is continuous with the recess 54 of the case 51, and the lighting fixture shown in FIG. 7 is completed. .
[0007]
The instrument main body 50 attached in this manner causes the column portion 21 of the arm 20 to protrude outward through the recess 55a of the cover 55 and the recess 56 of the case 51, and rotates around the sliding portion 22 of the arm 20 as a fulcrum. Can do. Further, the head of the screw 71 is disposed inside the adjustment hole 55b. For example, the holding force for holding the sliding portion 22 of the arm 20 is adjusted by tightening or loosening the screw 71 using a screwdriver or the like. The instrument body 50 can be rotated by loosening the screw 71, or the instrument body 50 can be fixed by tightening the screw 71.
[0008]
Further, such a lighting fixture is held by attaching the pedestal 4 provided on one end side where the sliding portion 22 of the arm 20 is not formed to a construction surface such as a ceiling, and is rotated with respect to the arm 20. By doing so, the direction of the lamp 1 can be changed and illuminated.
[0009]
[Problems to be solved by the invention]
However, since the spring piece 60 of the conventional lighting fixture as described above has a complicated shape, there are many causes of manufacturing variation, and the holding force for holding the sliding portion 22 of the arm 20 varies, and the manufacturing cost increases. There was a problem. Further, in the most use state in which the base 4 is attached to the ceiling and irradiated obliquely downward, there is a problem that the adjustment hole 55b is conspicuous and is not preferable in terms of design.
[0010]
The present invention aims to solve the above-described problems, and provides a lighting fixture that suppresses manufacturing costs and suppresses variation in holding force for holding an arm.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is formed in a substantially L shape by bending an instrument body provided with a lamp, an arm that supports the instrument body, and an elastic plate, and the tip of the arm. And a spring piece for pivotally mounting the instrument body, the spring piece having an opening through which the arm is inserted into the bent corner, and at both ends in the longitudinal direction sandwiching the corner. There is a mounting screw insertion hole for inserting the mounting screw, and the sliding part formed at the tip of the arm is sandwiched between the periphery of the corner and the arm receiving part formed on the instrument main body, and the screw is attached to the instrument main body. The cost is reduced by making the shape of the spring piece simpler than before, and the cause of manufacturing variation can be reduced. Between the sliding part of the arm It is possible to stabilize the quality by suppressing variation in the holding force holding.
[0012]
According to a second aspect of the present invention, in the first aspect of the invention, an auxiliary screw insertion hole to be attached to the instrument main body is provided between the opening and the opening at one end side in the longitudinal direction across the corner portion of the spring piece. When the spring piece is attached to the instrument body, the auxiliary screw insertion hole and the other end where the auxiliary screw insertion hole for the spring piece is not formed first. After inserting the screw into the mounting screw insertion hole formed on the side and screwing it into the instrument body, insert the screw into the mounting screw insertion hole on one end side where the auxiliary screw insertion hole is formed. By screwing onto the instrument body, the spring piece can be prevented from springing up when the screw is inserted into the mounting screw insertion hole on the other end of the spring piece and screwed into the instrument body. Can be improved.
[0013]
According to a third aspect of the present invention, in the first or second aspect of the invention, the holding force for holding the sliding portion of the arm sandwiched between the screw insertion hole for attaching the spring piece and the opening is adjusted. An adjustment screw insertion hole is formed through which the adjustment screw is inserted, and the adjustment screw insertion hole is formed in the instrument body and is disposed substantially opposite to the screw hole into which the adjustment screw is screwed. The spring piece presses the sliding part of the arm toward the arm receiving part side by screwing and tightening the adjusting screw inserted through the adjusting screw insertion hole into the screw hole of the instrument body. The holding force for holding the sliding portion of the arm of the spring piece can be adjusted according to the tightening degree of the screw, and as a result, the holding force can be adjusted by the adjusting screw to fix or rotate the instrument body. it can.
[0014]
According to a fourth aspect of the present invention, in the third aspect of the invention, the spring piece is substantially opposite to the opening surface of the adjustment screw insertion hole on the mounting surface to which the rear end side not fixed to the instrument body of the arm is fixed. Since the opening surface of the adjustment screw insertion hole is substantially opposed to the mounting surface, the adjustment screw insertion hole can be made inconspicuous and the appearance can be improved. In particular, in the most frequently used state in which the arm is attached to a mounting surface such as a ceiling and the instrument main body is disposed obliquely downward, the adjustment screw insertion hole can be hidden on the ceiling side to improve the appearance.
[0015]
According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the spring piece has a protruding piece formed by bending one end portion in the longitudinal direction sandwiching the corner portion to the outside, and is attached to the protruding piece. Screw insertion holes are formed, each opening surface of the mounting screw insertion holes formed at both ends in the longitudinal direction of the spring piece can be directed in substantially the same direction, and as a result, All mounting screws can be tightened from the same direction, and assemblability can be improved.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
(Embodiment 1)
Since the basic configuration in the present embodiment is the same as that of the conventional example, common portions are denoted by the same reference numerals, description thereof is omitted, and only the portions that characterize the present embodiment will be described in detail.
[0017]
In the present embodiment, as shown in FIG. 1, the spring is composed of an instrument main body 10 provided with the lamp 1, an arm 20, and an elastic plate, and sandwiches the sliding portion 22 of the arm 20 between the instrument main body 10. And a piece 30.
[0018]
The spring piece 30 is formed in a substantially L shape by bending a substantially central portion of a substantially rectangular plate material, and an opening 31 through which the column portion 21 of the arm 20 is inserted is formed in the bent corner portion. Further, one screw insertion hole 33 for attachment through which the screw 3 for attaching the spring piece 30 to the instrument body 10 is inserted is formed at a substantially central portion on one end side in the longitudinal direction across the corner portion of the spring piece 30. Two similar screw insertion holes 34 for attachment are also formed around the opening 31 on the end side.
[0019]
The instrument body 10 includes a substantially cylindrical case 11 having a lamp 1 therein, a cover 15 that closes an opening surface 12 formed at one end of the case 11 in the longitudinal direction, and a fixing portion 13 to which a spring piece 30 is attached. The concave arm receiving portion 14 for receiving the sliding portion 22 of the arm 20 is provided in the fixed portion 13 so as to be disposed in the vicinity of the concave portion 16 provided on the peripheral edge forming the opening surface 12 of the case 11. In addition, screw holes 13 a are respectively formed at portions corresponding to the mounting screw insertion holes 33 and 34 formed in the spring piece 30 of the fixing portion 13. The cover 15 includes a substantially disc-shaped main portion 15a and a peripheral wall 15b projecting substantially perpendicularly from the peripheral edge of the main portion 15a, and a recess recessed continuously in the peripheral wall 15b and the main portion 15a. 15c is formed.
[0020]
When such a tool body 10 is attached to the arm 20 using the above-described spring piece 30, the longitudinal direction sandwiching the corner portion of the spring piece 30 by inserting the column part 21 of the arm 20 through the opening 31 of the spring piece 30. The spring piece 30 is disposed on the fixing portion 13 of the instrument body 10 so that both side portions 30a, 30a in a direction substantially orthogonal to the arm receiving section 14 of the instrument body 10 sandwich the sliding portion 22 of the arm 20 therebetween. The spring piece 30 is fixed to the fixing portion 13 by inserting the screw 3 through the screw insertion holes 33 and 34 for mounting and screwing the screws 3 into the screw holes 13 a provided in the fixing portion 13. Then, the cover 15 is attached so that the recess 15 c is continuous with the recess 16 of the instrument body 10.
[0021]
The instrument body 10 attached in this way is rotatable about the slide part 22 of the arm 20 as a fulcrum, with the column part 21 of the arm 20 protruding from the recess 16 and the recess 15c of the instrument body 10.
[0022]
In the present embodiment, the spring piece 30 does not have the ribs 62 and 62 formed in a substantially arc shape as in the conventional example, but has a substantially L shape having the opening 31 and the screw insertion holes 33 and 34 for attachment. Thus, the manufacturing cost can be reduced and the factor of manufacturing variation can be reduced. As a result, the sliding of the arm 20 between the spring piece 30 and the arm receiving portion 14 can be reduced. It is possible to stabilize the quality by suppressing the variation in holding force that holds the moving part 22 in between.
(Embodiment 2)
Since the basic configuration in the present embodiment is the same as that in the first embodiment, common portions are denoted by the same reference numerals and description thereof is omitted, and only the portions that are characteristic of the present embodiment will be described in detail.
[0023]
As shown in FIG. 2, the spring piece 30 of the present embodiment is formed such that one end side where the screw insertion hole 34 for attachment is provided is longer than the first embodiment in the longitudinal direction sandwiching the corner, and the peripheral edge on one end side is substantially the same. An auxiliary screw insertion hole 35 to be attached to the fixing portion 13 of the instrument body 10 is formed in the center portion.
[0024]
When attaching the instrument main body 10 to the arm 20 using such a spring piece 30, the column part 21 of the arm 20 is inserted into the opening 31 as in the first embodiment, and the spring piece 30 is connected to the arm receiving part 14. The sliding portion 22 of the arm 20 is sandwiched between them. First, the screws 3 are inserted into the mounting screw insertion holes 33 and the auxiliary screw insertion holes 35, respectively, and screwed into the screw holes 13 a and 13 b formed in the fixing portion 13. The screw hole 13b into which the screw 3 inserted through the auxiliary screw insertion hole 35 is screwed is projected from the surface on which the screw hole 13a of the fixing portion 13 is formed to the opening surface 12 side of the case 11. The protrusion 13c is formed.
[0025]
Next, the spring piece 30 is fixed to the fixing portion 13 of the instrument body 10 by inserting the screws 3 through the spring insertion holes 34 and 34 for mounting and screwing the screws 3 into the corresponding screw holes 13a and 13a. Finally, the cover 15 is attached to the opening surface 12 of the case 11.
[0026]
By the way, in the first embodiment, when the screw 3 is first inserted into the screw insertion hole 33 of the spring piece 30 and screwed into the screw hole 13a, one end side where the screw insertion holes 34, 34 of the spring piece 30 are formed jumps up. Thus, it is difficult to insert the screw 3 into the screw insertion holes 34 and 34 and screw them together.
[0027]
However, in this embodiment, an auxiliary screw insertion hole 34 is formed, and the screw 3 is inserted into the auxiliary screw insertion hole 34 before the mounting screw insertion holes 34, 34 and screwed into the screw hole 13 b. By wearing, the spring piece 30 can be prevented from jumping up, and the screw 3 can be easily inserted into and screwed into the mounting screw insertion holes 34, 34. As a result, the assemblability can be improved. .
(Embodiment 3)
Since the basic configuration of the present embodiment is the same as that of the second embodiment, common portions are denoted by the same reference numerals, description thereof is omitted, and only the portions that characterize the present embodiment are described in detail.
[0028]
As shown in FIG. 3, the spring piece 30 of the present embodiment is formed so that one end side where the screw insertion hole 33 for mounting is provided is longer than the spring piece 30 of the second embodiment in the longitudinal direction across the corner. An adjustment screw through which an adjustment screw 3a for adjusting the holding force of the spring piece 30 holding the sliding portion 22 of the arm 20 is held between the portion 31 and the mounting screw insertion hole 33 is inserted. An insertion hole 36 is formed.
[0029]
When attaching the instrument body 10 to the arm 20 using such a spring piece 30, first, the spring piece 30 inserted through the column portion 21 of the arm 20 into the opening 31 is used as the opening surface of the screw insertion hole 3 a for adjustment. The case 11 is disposed so as to be located inside the recess 16a formed at the bottom of the peripheral edge of the recess 16 of the case 11. As in the second embodiment, the sliding portion 22 of the arm 20 is sandwiched between the both side portions 30a, 30a of the spring piece 30 and the arm receiving portion 14, and the screw insertion holes 33, 34, 34 for mounting and auxiliary The screws 3 are inserted into the screw insertion holes 35 for use and screwed into the corresponding screw holes 13a and 13b. Next, the adjustment screw 3a is inserted into the adjustment screw insertion hole 36, and the recess 16a is formed, for example, at a portion substantially opposite to the adjustment screw insertion hole 36 of the fixing portion 13 using a screwdriver or the like. Screw into a screw hole (not shown). At this time, since the periphery of the screw insertion hole 36 for adjustment of the spring piece 30 is disposed with a gap from the fixing portion 13, the spring 330 is screwed and tightened as described above to tighten the spring. The peripheral portion of the screw insertion hole 36 for adjustment of the piece 30 is pushed toward the fixed portion 13 side, and both side portions 30a, 30a of the spring piece 30 press the sliding portion 22 of the arm 20 against the arm receiving portion 14, and the sliding portion. The holding force for holding 22 can be increased. On the contrary, the holding force can be weakened by loosening the adjustment screw 3a.
[0030]
In the present embodiment, as described above, the spring piece 30 is formed with the adjustment screw insertion hole 36 for adjusting the holding force for holding the sliding portion 22 of the arm 20, and is adjusted to the fixing portion 13 of the instrument body 10. Since the screw hole substantially opposite to the screw insertion hole 36 is provided, the holding force can be easily adjusted. Furthermore, when one end side of the arm 20 where the sliding portion 22 is not formed is fixed to a construction surface such as a ceiling, the opening surface of the adjustment screw insertion hole 36 is substantially opposed to the ceiling through the recess 16a of the case 11. By doing so, the adjustment screw insertion hole 36 is less conspicuous than the conventional example in the most frequent use state where the instrument body 10 is disposed obliquely downward, and the appearance can be improved.
(Embodiment 4)
Since the basic configuration in the present embodiment is the same as that in the third embodiment, common portions are denoted by the same reference numerals, description thereof is omitted, and only the portions that are characteristic of the present embodiment will be described in detail.
[0031]
As shown in FIG. 4, the spring piece of the present embodiment has a projecting piece 33 a formed by bending one end side provided with a mounting screw insertion hole 33 outward, and mounting screw insertion. The hole 33 is formed in the protruding piece 33a.
[0032]
On the other hand, as shown in FIG. 5, the screw hole 13 a corresponding to the screw 3 inserted into the mounting screw insertion hole 33 is formed in the fixing portion 13 of the instrument main body 10 so that the opening surface of the screw hole 13 a corresponds to the case 11. It is formed so as to be substantially opposed to the opening surface 12.
[0033]
When attaching such an instrument body 10 to the arm 20 using the spring piece 30, the screw 3 a, the auxiliary screw insertion hole 35 and the attachment screw insertion holes 33, 34, 34 from the opening surface 12 side of the case 11. 3 is inserted and screwed into the corresponding screw holes 13a and 13b, and the spring piece 30 is fixed to the fixing portion 13. Then, as in the third embodiment, the adjustment screw 3a is inserted from the recess 16a of the case 11 into the adjustment screw insertion hole 36 and screwed into the screw hole 13d provided in the fixing portion 13 to slide the arm 20 on. The holding force for holding the moving portion 22 is adjusted, and finally the cover 15 is attached to the case 11.
[0034]
As shown in FIG. 5, the assembled lighting fixture of the present embodiment has a base 4 provided with a terminal block 2 connected to indoor wiring at one end where the sliding portion 22 of the arm 20 is not formed. The pedestal 4 is fixed and held on a construction surface such as a ceiling. The terminal block 2 is connected to the socket 1a of the instrument body 10 with a cable that passes through the inside of the arm 20, and power is supplied from the terminal block 2 to the lamp 1 via the socket 1a, and the instrument body 10 is armed. By rotating the 20 sliding portions 22 around the fulcrum, the lamp 1 can be illuminated in a different direction.
[0035]
Here, in the first to third embodiments, since the screw insertion holes 33 on one end side and the screw insertion holes 34 on the other end side are different in direction, the mounting screw 3 must be tightened from different directions. However, in this embodiment, the spring piece 30 is provided with the projecting piece 33a, and the mounting thread insertion hole 33 is formed in the projecting piece 33a, so that the mounting screw insertion hole is formed from the opening surface 12 side of the case 11. 33, 34, 34 and the auxiliary screw insertion hole 35 can be inserted into the corresponding screw holes 13a, 13b, and as a result, the mounting screws 3 can all be in the same direction. Therefore, there is an advantage that assemblability can be improved.
[0036]
【The invention's effect】
The invention according to claim 1 is formed in a substantially L shape by bending an instrument main body provided with a lamp, an arm supporting the instrument main body, and an elastic plate, and the instrument main body can be rotated at the tip of the arm. A spring piece to be attached, the spring piece having an opening through which the arm is inserted at the bent corner, and a screw to be attached to the instrument body at both ends in the longitudinal direction across the corner. It has a screw insertion hole, and a sliding part formed at the tip of the arm is sandwiched between the corner periphery and the arm receiving part formed on the instrument body, and is screwed to the instrument body. By simplifying the shape compared to the conventional one, the cost can be reduced and the factor of manufacturing variation can be reduced. As a result, the spring piece holds the sliding part of the arm between the instrument body Product with reduced force variation There is an effect that can be stabilized.
[0037]
According to the second aspect of the present invention, an auxiliary screw insertion hole to be attached to the instrument body is formed on one end side in the longitudinal direction across the corner portion of the spring piece with the screw insertion hole for attachment interposed between the opening portion and the opening. Therefore, when attaching the spring piece to the instrument body, first, the auxiliary screw insertion hole and the attachment screw insertion formed on the other end side where the auxiliary screw insertion hole of the spring piece is not formed. After inserting a screw into the hole and screwing it into the instrument body, the screw is inserted into the mounting screw insertion hole on one end side where the auxiliary screw insertion hole is formed and screwed into the instrument body to thereby spring. When the screw is inserted into the mounting screw insertion hole on the other end side of the piece and screwed to the instrument body, the spring piece can be prevented from jumping up, and as a result, the assemblability can be improved. is there.
[0038]
The invention according to claim 3 is an adjustment in which an adjusting screw for adjusting a holding force for holding and holding the sliding portion of the arm is inserted between the screw insertion hole for attaching the spring piece and the opening. Since the screw insertion hole for adjustment is formed, and the screw insertion hole for adjustment is formed in the instrument main body and is disposed substantially opposite to the screw hole into which the adjustment screw is screwed, the screw insertion hole for adjustment is inserted into the screw insertion hole for adjustment. By tightening the adjustment screw screwed into the screw hole of the instrument body, the spring piece presses the sliding part of the arm toward the arm receiving part, and the arm of the spring piece is adjusted according to the degree of tightening of the adjustment screw. The holding force for holding the sliding portion can be adjusted. As a result, there is an effect that the holding force can be adjusted by the adjusting screw to fix or rotate the instrument body.
[0039]
In the invention of claim 4, since the spring piece is arranged so that the opening surface of the screw insertion hole for adjustment is substantially opposed to the attached surface to which the rear end side that is not attached to the instrument body of the arm is fixed, Since the opening surface of the adjustment screw insertion hole substantially faces the mounted surface, there is an effect that the appearance of the appearance can be improved without making the adjustment screw insertion hole inconspicuous. In particular, in the most frequent use state where the arm is attached to a mounting surface such as a ceiling and the instrument body is disposed obliquely downward, the adjustment screw insertion hole can be hidden on the ceiling side to improve the appearance. effective.
[0040]
According to the invention of claim 5, the spring piece has a protruding piece formed by bending one end portion in the longitudinal direction sandwiching the corner portion to the outside, and the screw insertion hole for mounting is formed in the protruding piece. Each opening surface of the mounting screw insertion hole formed at both ends in the longitudinal direction of the piece can be directed in substantially the same direction, and as a result, all the mounting screws can be tightened from the same direction, There is an effect that the assemblability can be improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a first embodiment.
FIG. 2 is an exploded perspective view showing a second embodiment.
FIG. 3 is an exploded perspective view showing a third embodiment.
4 is an exploded perspective view showing a fourth embodiment. FIG.
FIG. 5 is a side sectional view of the above.
FIG. 6 is an exploded perspective view showing a conventional example.
FIG. 7 is a side sectional view of the above.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Instrument main body 14 Arm receiving part 15 Cover 20 Arm 21 Sliding part 30 Spring piece 31 Opening part 33,34 Screw insertion hole for attachment

Claims

An instrument main body provided with a lamp, an arm that supports the instrument main body, and a spring piece that is formed in a substantially L shape by bending an elastic plate and rotatably attaches the instrument main body to the tip of the arm. The spring piece has an opening through which the arm is inserted at the bent corner, and has a screw insertion hole for attachment through which a screw to be attached to the instrument body is inserted at both ends in the longitudinal direction across the corner. A lighting fixture, wherein a sliding portion formed at a tip of an arm is sandwiched between a corner portion periphery and an arm receiving portion formed on the fixture main body, and is screwed to the fixture main body.

An auxiliary screw insertion hole to be attached to the instrument body is formed on one end side in the longitudinal direction across the corner portion of the spring piece with the screw insertion hole for attachment interposed between the opening and the opening. The lighting fixture according to claim 1.

Between the screw insertion hole for attaching the spring piece and the opening, an adjustment screw insertion hole is formed through which an adjustment screw is inserted to adjust the holding force to sandwich and hold the sliding portion of the arm. 3. The lighting apparatus according to claim 1, wherein the adjustment screw insertion hole is formed in the apparatus main body and is disposed substantially opposite to a screw hole into which the adjustment screw is screwed.

4. The spring piece is arranged so that an opening surface of an adjustment screw insertion hole is substantially opposed to a mounting surface to which a rear end side not fixed to an instrument body of an arm is fixed. Lighting fixtures.

The spring piece has a protruding piece formed by bending one end in the longitudinal direction sandwiching the corner portion to the outside, and a screw insertion hole for attachment is formed in the protruding piece. The luminaire described.