JP2004146277A - Lamp socket and luminaire using it - Google Patents

Lamp socket and luminaire using it Download PDF

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Publication number
JP2004146277A
JP2004146277A JP2002311915A JP2002311915A JP2004146277A JP 2004146277 A JP2004146277 A JP 2004146277A JP 2002311915 A JP2002311915 A JP 2002311915A JP 2002311915 A JP2002311915 A JP 2002311915A JP 2004146277 A JP2004146277 A JP 2004146277A
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JP
Japan
Prior art keywords
socket
lamp
piece
fluorescent lamp
lamp socket
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JP2002311915A
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Japanese (ja)
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JP3867040B2 (en
Inventor
Masaaki Isoda
磯田 雅章
Tokuji Sato
佐藤 篤司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Panasonic Life Solutions Asahi Co Ltd
Original Assignee
Asahi Matsushita Electric Works Ltd
Matsushita Electric Works Ltd
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Priority to JP2002311915A priority Critical patent/JP3867040B2/en
Publication of JP2004146277A publication Critical patent/JP2004146277A/en
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  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Connecting Device With Holders (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lamp socket capable of surely fitting to a fitting part and to provide a luminaire using the lamp socket. <P>SOLUTION: A socket body 2 of the lamp socket 1 is constituted with a body 3 and a cover 4 each made of resin, and holds movably in the front and the rear a plunger 6 having a lampholder to which a base of a straight pipe-type fluorescent lamp having the base at both ends is fit. A bending piece 12 which is separated from the rear wall except one end by a slit 4d and in which the other end is bendable in the front and rear direction is formed in the rear wall of the cover 4, and a locking projection 12a installed in the other part of the bending piece 12 is fit to a locking hole 26 of a fitting plate 24. Interposing pieces 11, 11 having an L-shaped cross section are projected from the rear edge of right and left side walls of the body 3, a longitudinal piece 11b of the interposing piece 11 is inserted into a narrow width part 25b of a through hole 25 installed in the fitting plate 24 for whirl-stop, and a lateral piece 11a interposes the fitting plate 24 between the rear surface of the cover 4 and itself. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、高出力形の直管形蛍光ランプが装着されるランプソケット及びそれを用いる照明器具に関するものである。
【0002】
【従来の技術】
この種のランプソケットとしては、例えば図13(a)(b)に示すような構造を有するものが従来より提供されている(特許文献1参照)。
【0003】
このランプソケットは、後面が開口した略箱状であって前面に蛍光ランプの口金が挿入されるランプ挿入孔が設けられたボディ51と、ボディ51の開口を塞ぐようにしてボディ51に被着されるカバー52とで構成されるソケット本体50を有し、ソケット本体50の内部にはランプピンに接触するとともに、基端にリード線が接続された導電金具(図示せず)が収納されている。
【0004】
カバー52の後面の上部には貫通孔53が貫設され、下部の左右両側には突起54,54が突設されている。また、ボディ51には、カバー52の貫通孔53に連通する挿通孔55が貫設されている。
【0005】
而して、このランプソケットを照明器具の器具本体に固定された取付板60に取り付ける際には、ボディ51の挿通孔55とカバー52の貫通孔53とに挿通したねじ56の先端を取付板60に設けた孔61に通してナット57に螺合することで、ソケット本体50を取付板60にねじ56で締め付けて固定している。この時、突起54の先端が取付板60に設けた孔(図示せず)と嵌合し、ソケット本体50の回転止めが行われる。
【0006】
【特許文献1】
特開平10−149717号公報(第3頁及び第4図、第5図)
【0007】
【発明が解決しようとする課題】
ところで、片口金形の蛍光ランプが装着されるランプソケットでは蛍光ランプを片持ち支持しているので、受金が蛍光ランプの口金を保持する力を大きくとる必要があり、その結果ランプ側に引っ張られる方向(この方向をランプ引張り方向と言う。)に加わる力が大きくなって、ランプ引張り方向の取付強度を充分に確保する必要がある。それに対して、両口金形の直管形蛍光ランプが装着されるランプソケットでは蛍光ランプを両側から支持しているので、片口金形の蛍光ランプが装着されるランプソケットに比べて、受金が口金を保持する力を小さくでき、したがってランプ引張り方向に加わる力が小さくなり、ランプ引張り方向の取付荷重が小さくて済むが、蛍光ランプを回転させるような力が加わる場合があるので、蛍光ランプの回転方向への取付強度を十分に確保する必要がある。
【0008】
上述した従来のランプソケットでは、1本のねじ56でソケット本体50を取付板60に締付固定しているため、蛍光ランプの回転方向への取付強度を大きくとるためには、ねじサイズを大きくして、ねじ56による締付力を大きくする必要があり、その結果ソケット本体50が大型化するという問題があった。
【0009】
また、蛍光ランプを回転させるような力が加わると、ねじ56を中心にソケット本体50を回転させるような力がソケット本体50に加わるが、カバー52の2個の突起54が取付板60の孔と嵌合することで、ソケット本体50の回転止めを行っているので、ねじ56の締付時やソケット取付後に蛍光ランプを回転する力がかかった場合に2個の突起54に荷重が集中して、突起54が破壊する虞もあった。また、上述のランプソケットでは、ソケット本体50を取付板60にねじ止めする際に、ソケット本体50を取付板60に仮止めする構造となっていないため、取付作業がやりにくいという問題もあった。
【0010】
本発明は上記問題点に鑑みて為されたものであり、その目的とするところは、取付部位に確実に取り付けることができる小型のランプソケット及びそれを用いる照明器具を提供することにある。
【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の発明では、両端に口金を有する直管形の蛍光ランプが装着されるランプソケットであって、蛍光ランプの口金を受ける受金が前面に設けられた樹脂製のソケット本体と、ソケット本体の内部に収納され給電線が接続されるとともに口金が備える接触片に電気的に接続される導電部材とを備え、ソケット本体を板状の取付部位に取り付けるための取付手段をソケット本体の後面側に設け、該取付手段を、ソケット本体の後壁に設けたスリットによって一端側を除いて後壁から分離され、他端部が前後方向において撓み自在に形成された撓み片と、撓み片の他端部から後方に向かって突出し取付部位に設けた被係止凹部と係止する係止突起と、それぞれソケット本体の後面から後方に突出し、取付部位に設けた貫通孔に挿入されて貫通孔の縁と当接することにより回り止めを行う一対の位置規制突起と、各位置規制突起の先端部から側方に突出し、ソケット本体の後壁との間で取付部位を挟持する一対の挟持用突起とで構成したことを特徴とする。
【0012】
請求項2の発明では、請求項1の発明において、ソケット本体の後壁において、押圧突起及び一対の位置規制突起から略等距離の位置に、取付部位に設けた挿通孔に通した取付ねじが螺合するねじ穴を形成したことを特徴とする。
【0013】
請求項3の発明では、請求項1の発明において、ソケット本体の内部に撓み片の周りを囲む袋状の隔壁を形成したことを特徴とする。
【0014】
請求項4の発明では、両端に口金を有する直管形の蛍光ランプと、蛍光ランプの口金が装着される請求項1乃至請求項3の何れか1つに記載のランプソケットと、ランプソケットを保持する器具本体と、器具本体に取り付けられてランプソケットに装着される蛍光ランプを点灯させる安定器とを備えて成ることを特徴とする。
【0015】
【発明の実施の形態】
本実施形態の照明器具は、図10〜図12に示すように、両端にR17d(JIS C 7709−1参照)と呼ばれる口金41を有する高出力タイプの直管形の蛍光ランプ40,40と、各蛍光ランプ40の軸方向に沿って一対ずつ配置され口金41と嵌合する受金を具備したランプソケット(可動形ランプソケット1及び固定形ランプソケット1’)と、2組のランプソケット1,1’を保持する器具本体20と、器具本体20に取り付けられて各組のランプソケット1,1’に装着される蛍光ランプ40,40を点灯させる安定器30とを備える。
【0016】
先ず可動形ランプソケット(以下、ランプソケットと略す)1の構造について図1〜図8に基づいて説明する。尚、以下の説明では特に断りが無い場合、図3(a)の向きにおいて上下左右の方向を規定し、また図3(a)における正面を前面という。したがって、図3(b)における右端は後端になる。
【0017】
このランプソケット1は、図2に示すように、後面が開口した箱形のボディ3及びボディ3の開口面に被着されるカバー4からなるソケット本体2を備え、ソケット本体2の内部には蛍光ランプ40の口金41を受ける受金5が納装されている。
【0018】
ボディ3は、受金5を前後動自在に保持する略円筒状の主部3aと、主部3aの後部側から下方に突出する突出部3bとが一体に形成された合成樹脂成型品からなり、主部3aの前面にはプランジャ6が前後動自在に挿通する略十字形の挿通孔3cが開口している。また、突出部3bの左右両側壁の後縁からは、断面L字形であって先端が外側に向かって突出し、カバー4の後面との間で後述する器具本体20の取付板24を挟持する挟持片11,11が一体に突設されている。
【0019】
カバー4は合成樹脂成型品からなり、ボディ3の主部3a並びに突出部3bの開口面を塞ぐような形状に形成され、前面の上部には後述する端子金具9のばね座片9aとコイルばね8の後端部とが挿入される一対のばね保持溝4aが設けられ、前面の下部にはボディ3の突出部3b内に進出する一対の突台部4bが突設されている。カバー4の後面の上部には、後壁に設けたスリット4dによって一端側を除いて後壁から分離された舌状の撓み片12が形成され、撓み片12の他端部は前後方向において撓み自在となっており、撓み片12の他端部後面には取付板24の係止孔26(被係止凹部)と係止する係止突起12aが後方に向かって突設されている。また、カバー4の後面略中央には、図7及び図8に示すように上述した撓み片12の係止突起12a及び挟持片11,11から略等距離の位置に、組立ねじが螺合するねじ穴13が形成されている。すなわち、係止突起12a及び挟持片11,11はねじ穴13を中心とする略同一半径の円周上に略等しい間隔で配置されている。尚、カバー4の左右両側縁には、ボディ3の挟持片11,11に対応する部位に挟持片11,11を逃がすための切欠4e,4eを設けてある。
【0020】
プランジャ6は合成樹脂成型品からなり、平面視略十字形の有底筒状の主部6aと、主部6aの後端部に形成された鍔部6bとを有し、主部6aの内側に受金5が設けられている。受金5は、前面に開口し口金41の前端部から突出する嵌合部42が嵌合する嵌合凹所5aと、嵌合凹所5aの底面中央より前方へ突出する平面視略エ字形のガイド部5bと、嵌合凹所5aの底面に設けられた一対の挿通孔(図示せず)に後方からそれぞれ挿通される接触端子7,7とを具備する。
【0021】
接触端子7は金属部材により略十字形に形成され、上記挿通孔から嵌合凹所5a内に挿入されるコンタクト部7aが、ガイド部5bの両側面の縦溝5cに収納保持される。一方、上記挿通孔よりプランジャ6の後方に突出する接触端子7の後端部7bにはコイルばね8の前端部が挿入される。
【0022】
コイルばね8の後端部は端子金具9のばね座片9aとともにカバー4のばね保持溝4a内に挿入される。端子金具9は金属板に抜き加工且つ曲げ加工を施して形成され、略円形のばね座片9aと、外部電線が接続される速結端子部9bと、ばね座片9aと速結端子部9bとの間を連結する連結片9cとを有する。そして、端子金具9をカバー4に取り付けた状態では、ばね座片9aがばね保持溝4aの底部に配置されるとともに、速結端子部9bが突台部4bの前面側に載置される。ばね座片9aの略中央には孔9fが貫設されており、この孔9fがばね保持溝4aの底壁に設けた突起(図示せず)に嵌り込むことで、ばね座片9aの位置決めが行われるようになっている。この時、コイルばね8の後端部がばね座片9aと接触し、接触端子7と端子金具9とがコイルばね8を介して電気的に接続される。ここに、2組の接触端子7、コイルばね8、及び端子金具9から蛍光ランプ40の口金41が備える接触片(図示せず)と給電線の間を電気的に接続する導電金具10が構成される。
【0023】
端子金具9の速結端子部9bは平面視略コ字形であって、ボディ3の左右の側壁に沿って配置される当接片9dと、当接片9dとの間で給電線の芯線を挟持する鎖錠片9eとを有している。鎖錠片9eは切り起こしによって形成され、先端に行くほどボディ3の下壁から遠ざかる向きに傾斜しており、先端縁が当接片9dと対向している。ボディ3の下壁には、当接片9dと鎖錠片9eとの対向部位に対応して電線挿通孔3dが一対ずつ設けられており、この電線挿通孔3dから給電線(図示せず)の被覆が剥かれた芯線を挿入すると、鎖錠片9eと当接片9dとの間に芯線の導体が挟持され、鎖錠片9eの先端縁が芯線の導体に食い込むことによって、芯線の脱落が防止されるようになっている。すなわち、電線挿通孔3dに給電線の芯線を挿入するだけで、芯線が保持されるとともに、端子金具9への電気的接続がなされるのである。また、ボディ3の下壁には各電線挿通孔3dに対応して電線外し孔3eが設けられており、速結端子部9bに接続された給電線の芯線を外す場合には、対応する電線外し孔3eから工具を挿入して、工具の先端で鎖錠片9eを上側に押圧すると、鎖錠片9eが当接片9dから離れる方向に撓められるので、鎖錠片9eが芯線の導体から離れて、給電線を容易に引き抜くことができる。
【0024】
次にランプソケット1を組み立てる手順について以下に簡単に説明する。先ずプランジャ6の主部6aをボディ3の挿通孔3cに後方から挿通し、接触端子7、コイルばね8及び端子金具9を内部に納装した後に、ボディ3の開口面にカバー4を被着し、カバー4の組立爪4cをボディ3の嵌合凹所(図示せず)と嵌合させることにより、ランプソケット1の組立が完了する。ここで、圧縮状態でソケット本体2内に納装されるコイルばね8のばね力により接触端子7を介してプランジャ6が前方へ弾性付勢され、挿通孔3cの周縁に鍔部6bが当接することによって、プランジャ6が挿通孔3cから抜け止めされた状態で挿通孔3cから進退自在に保持される。すなわち、プランジャ6及びコイルばね8により、口金41との嵌合方向に受金5を移動自在とし且つ蛍光ランプ40側に受金5を付勢する移動機構が構成される。
【0025】
ところで、固定形ランプソケット1’は図9に示す様な構造を有し、上記の移動機構を備えておらず、ボディ3の主部3a内に受金5が固定されている点で可動形ランプソケット1と相違するが、それ以外の構成についてはほぼ共通であるので、詳細な説明は省略する。
【0026】
次に、このランプソケット1,1’の器具本体20への取付構造について説明する。図1に示すように器具本体20の取付板24には、カバー4の係止突起12aが係止する係止孔26と、ねじ穴13に螺合する取付ねじ14を挿通するための挿通孔27とが取付板24を貫通して設けられ、係止孔26と挿通孔27とを結ぶ線に対して左右両側に挟持片11,11がそれぞれ挿入される貫通孔25,25が形成されている。貫通孔25,25は係止孔26と挿通孔27とを結ぶ線と略平行な方向に延び、挿通孔27に近い側が遠い側に比べて幅狭となっており、幅広部25aの幅寸法は挟持片11の横片11aよりも幅広に形成され、幅狭部25bの幅寸法は挟持片11の横片11aよりも幅狭で、縦片11bの厚みよりも幅広となっている。尚、幅狭部25b,25b及び係止孔26は挿通孔27を中心とする略同一半径の円周上に配置されている。
【0027】
而して、ランプソケット1,1’を取付板24に取り付ける際には、ソケット本体2の後面を取付板24に近づけて、挟持片11,11をそれぞれ貫通孔25の幅広部25aに挿入した後、ソケット本体2を貫通孔25の長手方向に沿ってスライド移動させて、挟持片11を貫通孔25の幅狭部25b内に挿入させると、挟持用突起たる横片11aの先端部とカバー4の後面(ソケット本体2の後壁)との間に幅狭部25bの縁が挟持される。ここに、カバー4の後面と横片11aの前面との間の隙間は取付板24の板厚と略同じ寸法に形成されているので、挟持片11が幅狭部25b内に挿入されると、取付板24の表面によって係止突起12aが前方に押圧されて、撓み片12の先端部が前方に撓められる。また、ソケット本体2を取付板24に対してスライド移動させて、挟持片11を幅狭部25bの端まで移動させると、撓み片12の弾性力によって撓み片12の係止突起12aが取付板24の係止孔26と嵌合し、ソケット本体2が取付板24に仮保持される。この時、カバー4のねじ穴13と取付板24の挿通孔27とが連通し、挿通孔27に通した取付ねじ14をねじ穴13に螺合することで、ソケット本体2が取付板24に固定されるのである。
【0028】
ところで、両端に口金を有する直管形の蛍光ランプ40が装着されるランプソケット1,1’では、片口金の蛍光ランプが装着されるランプソケットに比べてランプ引張り方向に加わる力が小さいので、ランプ引張り方向への取付荷重は小さくて済み、そのうえ本実施形態ではランプ引張り方向に加わる力を取付ねじ14と挟持片11の横片11aとで受けているので、取付ねじ14に締付力の小さい小型のものを使用でき、その結果ソケット本体2の小型化を図ることができる。
【0029】
また、取付ねじ14のねじ締め時や蛍光ランプ40を回転させるような力が加わった場合には、取付ねじ14の螺合するねじ穴13を中心としてソケット本体2を回転させるような力がソケット本体2に加わるのであるが、挟持片11の位置規制突起たる縦片11bが貫通孔25(幅狭部25b)の縁に当接するとともに、係止突起12aが係止孔26と係止することでソケット本体2の回り止めを行っており、ソケット本体2を回転させる力を3箇所の突起(係止突起12aと挟持片11,11の縦片11b,11b)で受けているので、各々の突起で受ける荷重を低減して、突起の破損を防止でき、また1個当たりの突起で受ける荷重を従来と同程度にするのであれば、ソケット本体2の取付強度を高めることができる。しかも、3箇所の突起(係止突起12aと挟持片11,11の縦片11b,11b)はねじ穴13から略等距離の位置に配置されているので、3箇所の突起で荷重を均等に受けることができる。ここに、撓み片12と係止突起12aと挟持片11の横片11a及び縦片11bとで、ソケット本体2を板状の取付部位(器具本体20の取付板24)に取り付けるための取付手段が構成される。
【0030】
なお、カバー4の前面側には撓み片12の外側の部位から上側が開口した袋状の隔壁4fが形成されており、組立状態では隔壁4fとボディ2の上壁とで撓み片12の周りが囲まれている。このように隔壁4fによってカバー4の撓み片12が形成された部位と、導電部材10の収納空間とが仕切られているので、スリット4dを通って内部に侵入した埃や虫などがソケット本体2内部の導電部材と接触するのを防止できる。
【0031】
次に器具本体20の構造について図10〜図12を参照して説明する。器具本体20は、並行配置される長尺の枠体21,21と、枠体21,21の両端部間をそれぞれ連結する枠体22,22とで横長の四角枠状に形成されており、天井面等に適宜の取付手段を用いて取着されるようになっている。長手方向において対向する一方(図10中の左側)の枠体22の内側面には2個の可動形ランプソケット1,1が取り付けられ、他方の枠体22の内側面には2個の固定形ランプソケット1’,1’が取り付けられており、ランプソケット1,1’間に蛍光ランプ40が装着されるようになっている。つまり、枠体22,22の内側面からランプソケット1,1’の取付板24が構成される。尚、図中の23は反射板である。
【0032】
このように構成される本実施形態の照明器具に蛍光ランプ40を装着する手順を説明する。まず、可動形のランプソケット1に対して、口金41の嵌合部42を受金5の嵌合凹所5aに挿入すると、受金5のガイド部5bが嵌合部42内に進入して、嵌合部42に保持された一対の接触片(図示せず)がそれぞれガイド部5bに支持された接触端子7のコンタクト部7aと接触する。このとき、蛍光ランプ40がランプソケット1の方へ押されることでコイルばね8のばね力に抗してプランジャ6が器具本体20の長手方向(口金41と受金5の嵌合方向)の後方、すなわちランプソケット1の挿通孔3c内に進入する向き(図10中の左側)に移動し、口金41の嵌合部42が受金5の嵌合凹所5aに嵌合した状態でプランジャ6とともに口金41がランプソケット1の挿通孔3c内に進入する。この時、蛍光ランプ40の反対側の端部が固定形ランプソケット1’の位置よりも図10中の左側に移動するので、ランプソケット1,1’間に蛍光ランプ40を挿入することができ、蛍光ランプ40を固定形のランプソケット1’の向きに押すことで反対側の口金41がランプソケット1’の受金5に接続される。蛍光ランプ40をランプソケット1,1’間に装着した状態では、コイルばね8のばね力によりプランジャ6がランプソケット1の挿通孔3cから退出する向きに移動し、プランジャ6がランプソケット1の挿通孔3cから突出した状態で蛍光ランプ40が両ランプソケット1,1’に装着される(図11参照)。
【0033】
尚、本実施形態ではR17d形の口金を備える蛍光ランプが装着される例について説明したが、蛍光ランプを上記のものに限定する趣旨のものではなく、口金を両端に備える直管形の蛍光ランプであれば、どのような蛍光ランプが装着されるランプソケットにも本発明を適用可能である。
【0034】
【発明の効果】
上述のように、請求項1の発明は、両端に口金を有する直管形の蛍光ランプが装着されるランプソケットであって、蛍光ランプの口金を受ける受金が前面に設けられた樹脂製のソケット本体と、ソケット本体の内部に収納され給電線が接続されるとともに口金が備える接触片に電気的に接続される導電部材とを備え、ソケット本体を板状の取付部位に取り付けるための取付手段をソケット本体の後面側に設け、該取付手段を、ソケット本体の後壁に設けたスリットによって一端側を除いて後壁から分離され、他端部が前後方向において撓み自在に形成された撓み片と、撓み片の他端部から後方に向かって突出し取付部位に設けた被係止凹部と係止する係止突起と、それぞれソケット本体の後面から後方に突出し、取付部位に設けた貫通孔に挿入されて貫通孔の縁と当接することにより回り止めを行う一対の位置規制突起と、各位置規制突起の先端部から側方に突出し、ソケット本体の後壁との間で取付部位を挟持する一対の挟持用突起とで構成したことを特徴とし、一対の挟持用突起によりソケット本体の後壁との間で取付板を挟持するとともに、撓み片の弾性力によって撓み片に設けた係止突起と取付板の被係止凹部とを嵌合させることで、ソケット本体を取付板に取り付けることができ、且つ、蛍光ランプを回転させる力が加わった場合には係止突起と一対の位置規制突起との3つの突起で荷重を受けるから1個当たりの突起で受ける荷重を小さくして、突起の破損を防止でき、また1個の突起で受ける荷重を従来と同程度にするのであれば全体としてソケット本体の取付強度が大きくなり、確実にランプソケットを取り付けることができる。また両口金形の直管形蛍光ランプが装着されるランプソケットでは、片口金形の蛍光ランプが装着されるランプソケットに比べてランプ引張り方向の取付強度が小さく済み、そのうえランプ引張り方向に加わる力を一対の挟持用突起でも受けているので、ソケット本体を取付部位にねじ止めする場合にも取付ねじに締付力の小さい小型のものを使用できるから、ランプソケットを小型化でき、さらにソケット本体は取付板に仮固定されているのでねじ締め作業がやりやすいという効果もある。
【0035】
請求項2の発明では、請求項1の発明において、ソケット本体の後壁において、押圧突起及び一対の位置規制突起から略等距離の位置に、取付部位に設けた挿通孔に通した取付ねじが螺合するねじ穴を形成したことを特徴とし、ねじ締め時や蛍光ランプを回転させる力が加わった場合にはねじ穴を中心としてソケット本体を回転させる力が加わるのであるが、押圧突起及び一対の位置規制突起をねじ穴から略等距離の位置に設けてあるので、3個の突起で荷重を均等に受けることができるという効果がある。
【0036】
請求項3の発明では、請求項1の発明において、ソケット本体の内部に撓み片の周りを囲む袋状の隔壁を形成したことを特徴とし、スリットを通ってソケット本体の内部に侵入した塵や虫などが導電部材に付着するのを防止できるという効果がある。
【0037】
請求項4の発明では、両端に口金を有する直管形の蛍光ランプと、蛍光ランプの口金が装着される請求項1乃至請求項3の何れか1つに記載のランプソケットと、ランプソケットを保持する器具本体と、器具本体に取り付けられてランプソケットに装着される蛍光ランプを点灯させる安定器とを備えて成ることを特徴とし、器具本体に確実に取り付けることのできる小型のランプソケットを備えた照明器具を提供できる。
【図面の簡単な説明】
【図1】本実施形態の可動タイプのランプソケットを器具本体に取り付ける前の状態の斜視図である。
【図2】同上の分解斜視図である。
【図3】同上を示し、(a)は正面図、(b)はA−A断面図である。
【図4】同上の下面図である。
【図5】同上のカバーを示し、(a)は後側から見た斜視図、(b)はB−B断面図である。
【図6】同上のカバーを前側から見た斜視図である。
【図7】同上の背面図である。
【図8】同上を後側から見た斜視図である。
【図9】同上の固定タイプのランプソケットの分解斜視図である。
【図10】同上のランプソケットを用いる照明器具の下面図である。
【図11】同上の照明器具を示し、図10のC−C断面図である。
【図12】同上の照明器具を示し、図11のD−D断面図である。
【図13】従来のランプソケットを示し、(a)は取付板に取り付けた状態の一部破断せる側面図、(b)は背面図である。
【符号の説明】
1   ランプソケット
2   ソケット本体
3   ボディ
4   カバー
4d  スリット
6   プランジャ
11  挟持片
11a 横片
11b 縦片
12  撓み片
12a 係止突起
24  取付板
25  貫通孔
25b 幅狭部
26  係止孔
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lamp socket to which a high-power straight tube fluorescent lamp is mounted and a lighting fixture using the same.
[0002]
[Prior art]
As this type of lamp socket, for example, a lamp socket having a structure as shown in FIGS. 13A and 13B has been conventionally provided (see Patent Document 1).
[0003]
This lamp socket has a body 51 having a substantially box-like shape with an open rear surface and a lamp insertion hole for inserting a base of a fluorescent lamp on the front surface, and is attached to the body 51 so as to cover the opening of the body 51. A conductive metal fitting (not shown) having a contact with a lamp pin and a lead wire connected to a base end is housed inside the socket main body 50 including a cover 52 to be formed. .
[0004]
A through hole 53 penetrates an upper portion of a rear surface of the cover 52, and protrusions 54 project from left and right sides of the lower portion. In addition, an insertion hole 55 communicating with the through hole 53 of the cover 52 is provided through the body 51.
[0005]
When the lamp socket is mounted on the mounting plate 60 fixed to the fixture main body of the lighting fixture, the tip of the screw 56 inserted into the insertion hole 55 of the body 51 and the through hole 53 of the cover 52 is attached to the mounting plate. The socket body 50 is fixed to the mounting plate 60 by screws 56 by screwing the nut body 57 through a hole 61 provided in the socket 60. At this time, the tip of the projection 54 is fitted into a hole (not shown) provided in the mounting plate 60, and the rotation of the socket body 50 is stopped.
[0006]
[Patent Document 1]
JP-A-10-149717 (pages 3, 4 and 5)
[0007]
[Problems to be solved by the invention]
By the way, since the lamp socket in which the single-ended fluorescent lamp is mounted supports the fluorescent lamp in a cantilever manner, it is necessary for the receiver to take a large force to hold the fluorescent lamp base, and as a result, the lamp is pulled toward the lamp. Therefore, the force applied in the direction in which the lamp is pulled (this direction is referred to as the lamp pulling direction) increases, and it is necessary to ensure sufficient mounting strength in the lamp pulling direction. On the other hand, the lamp socket, in which the double-ended straight tube fluorescent lamp is mounted, supports the fluorescent lamp from both sides. The force for holding the base can be reduced, and therefore the force applied in the lamp pulling direction is reduced, and the mounting load in the lamp pulling direction is small.However, a force for rotating the fluorescent lamp may be applied, so that the fluorescent lamp It is necessary to ensure sufficient mounting strength in the rotating direction.
[0008]
In the above-described conventional lamp socket, since the socket body 50 is fastened and fixed to the mounting plate 60 with one screw 56, in order to increase the mounting strength in the rotating direction of the fluorescent lamp, the screw size must be increased. Then, it is necessary to increase the tightening force of the screw 56, and as a result, there is a problem that the socket body 50 becomes large.
[0009]
When a force for rotating the fluorescent lamp is applied, a force for rotating the socket body 50 around the screw 56 is applied to the socket body 50. However, the two projections 54 of the cover 52 The rotation of the socket main body 50 is stopped by the fitting of the lamp body, so that the load concentrates on the two protrusions 54 when a force for rotating the fluorescent lamp is applied when the screw 56 is tightened or after the socket is mounted. Therefore, there is a possibility that the projection 54 is broken. Further, in the above-described lamp socket, when the socket body 50 is screwed to the mounting plate 60, the socket body 50 is not temporarily fixed to the mounting plate 60, so that there is a problem that the mounting operation is difficult to perform. .
[0010]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a small lamp socket that can be securely attached to a mounting portion and a lighting fixture using the same.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, there is provided a lamp socket in which a straight tube-type fluorescent lamp having bases at both ends is mounted, and a base for receiving the base of the fluorescent lamp is provided on a front surface. A resin socket body, and a conductive member housed inside the socket body, connected to a power supply line, and electrically connected to a contact piece provided in the base, for attaching the socket body to a plate-shaped mounting portion. Is provided on the rear surface side of the socket main body, the mounting means is separated from the rear wall except for one end side by a slit provided on the rear wall of the socket main body, and the other end is formed to be flexible in the front-rear direction. A flexure piece, a locking projection that projects rearward from the other end of the flexure piece and locks with a locked concave portion provided in the mounting portion, and respectively projects rearward from the rear surface of the socket body and is provided in the mounting portion. A pair of position regulating protrusions that are inserted into the through holes and stop by contacting the edges of the through holes, and protrude laterally from the tip of each position regulating protrusion and are attached to the rear wall of the socket body. It is characterized by comprising a pair of holding projections for holding a part.
[0012]
According to a second aspect of the present invention, in the first aspect of the present invention, the mounting screw passed through the insertion hole provided in the mounting portion at a position substantially equidistant from the pressing projection and the pair of position regulating projections on the rear wall of the socket body. A screw hole for screwing is formed.
[0013]
According to a third aspect of the present invention, in the first aspect of the present invention, a bag-shaped partition wall surrounding the bending piece is formed inside the socket body.
[0014]
According to the invention of claim 4, a straight tube-type fluorescent lamp having bases at both ends, the lamp socket according to any one of claims 1 to 3, wherein the base of the fluorescent lamp is mounted, and the lamp socket, It is characterized by comprising a fixture main body for holding, and a ballast mounted on the fixture main body and lighting a fluorescent lamp mounted on a lamp socket.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIG. 10 to FIG. 12, the lighting fixture of the present embodiment includes high-output straight tube fluorescent lamps 40 and 40 having bases 41 called R17d (see JIS C7709-1) at both ends; A lamp socket (a movable lamp socket 1 and a fixed lamp socket 1 ′) which is arranged in a pair along the axial direction of each fluorescent lamp 40 and has a metal fitting to be fitted with a base 41; The apparatus includes a fixture main body 20 for holding 1 ′, and a ballast 30 mounted on the fixture main body 20 to turn on fluorescent lamps 40, 40 mounted on each set of lamp sockets 1, 1 ′.
[0016]
First, the structure of a movable lamp socket (hereinafter, abbreviated as a lamp socket) 1 will be described with reference to FIGS. In the following description, unless otherwise specified, upper, lower, left, and right directions are defined in the direction of FIG. 3A, and the front in FIG. 3A is referred to as the front. Therefore, the right end in FIG. 3B is the rear end.
[0017]
As shown in FIG. 2, the lamp socket 1 includes a socket body 2 including a box-shaped body 3 having an open rear surface and a cover 4 attached to the opening surface of the body 3. A receiver 5 for receiving the base 41 of the fluorescent lamp 40 is provided.
[0018]
The body 3 is made of a synthetic resin molded article in which a substantially cylindrical main part 3a for holding the receiving metal 5 movably back and forth and a protruding part 3b protruding downward from the rear side of the main part 3a are integrally formed. On the front surface of the main part 3a, a substantially cross-shaped insertion hole 3c through which the plunger 6 is inserted so as to be able to move back and forth is opened. Further, from the rear edges of the left and right side walls of the protruding portion 3b, the front end protrudes outward with an L-shaped cross section, and holds a mounting plate 24 of the instrument main body 20 described later between the rear surface of the cover 4 and the holding portion. The pieces 11 and 11 are integrally protruded.
[0019]
The cover 4 is formed of a synthetic resin molded product, and is formed in a shape to close the opening surfaces of the main portion 3a and the protruding portion 3b of the body 3, and has a spring seat piece 9a of a terminal fitting 9 and a coil spring A pair of spring holding grooves 4a into which the rear end portion 8 is inserted are provided, and a pair of protruding base portions 4b projecting into the protruding portions 3b of the body 3 are provided at the lower portion of the front surface. A tongue-shaped flexible piece 12 separated from the rear wall except for one end by a slit 4d provided on the rear wall is formed on the upper portion of the rear surface of the cover 4, and the other end of the flexible piece 12 is bent in the front-rear direction. A locking projection 12a that locks with a locking hole 26 (locked concave portion) of the mounting plate 24 is provided on the rear surface of the other end of the flexible piece 12 so as to project rearward. As shown in FIGS. 7 and 8, an assembling screw is screwed into the rear surface of the cover 4 at a position substantially equidistant from the locking projection 12a of the flexible piece 12 and the holding pieces 11, 11, as shown in FIGS. A screw hole 13 is formed. That is, the locking projections 12a and the holding pieces 11, 11 are arranged at substantially equal intervals on a circumference having substantially the same radius around the screw hole 13. In addition, cutouts 4e, 4e for allowing the holding pieces 11, 11 to escape therefrom are provided at the left and right side edges of the cover 4 at portions corresponding to the holding pieces 11, 11 of the body 3.
[0020]
The plunger 6 is made of a synthetic resin molded article, has a substantially cylindrical main part 6a with a bottom in a plan view, and a flange part 6b formed at the rear end of the main part 6a. Is provided with a receiving money 5. The receiving metal 5 has a fitting recess 5a in which a fitting portion 42 that is opened on the front surface and protrudes from the front end of the base 41 fits, and a substantially E-shaped planar projection that projects forward from the center of the bottom surface of the fitting recess 5a. , And contact terminals 7, 7 respectively inserted from the rear into a pair of insertion holes (not shown) provided on the bottom surface of the fitting recess 5a.
[0021]
The contact terminal 7 is formed in a substantially cross shape by a metal member, and the contact portions 7a inserted into the fitting recesses 5a from the insertion holes are stored and held in the vertical grooves 5c on both side surfaces of the guide portion 5b. On the other hand, the front end of the coil spring 8 is inserted into the rear end 7b of the contact terminal 7 projecting rearward of the plunger 6 from the insertion hole.
[0022]
The rear end of the coil spring 8 is inserted into the spring holding groove 4 a of the cover 4 together with the spring seat 9 a of the terminal fitting 9. The terminal fitting 9 is formed by punching and bending a metal plate, and has a substantially circular spring seat piece 9a, a quick connection terminal part 9b to which an external electric wire is connected, a spring seat piece 9a and a quick connection terminal part 9b. And a connecting piece 9c for connecting between the two. When the terminal fitting 9 is attached to the cover 4, the spring seat piece 9a is arranged at the bottom of the spring holding groove 4a, and the quick connection terminal portion 9b is placed on the front side of the protruding base 4b. A hole 9f is formed substantially at the center of the spring seat piece 9a. The hole 9f fits into a projection (not shown) provided on the bottom wall of the spring holding groove 4a, thereby positioning the spring seat piece 9a. Is to be performed. At this time, the rear end of the coil spring 8 comes into contact with the spring seat piece 9a, and the contact terminal 7 and the terminal fitting 9 are electrically connected via the coil spring 8. Here, a conductive fitting 10 for electrically connecting between a contact piece (not shown) of the base 41 of the fluorescent lamp 40 and a power supply line from the two sets of the contact terminals 7, the coil spring 8, and the terminal fitting 9 is configured. Is done.
[0023]
The quick-connecting terminal portion 9b of the terminal fitting 9 has a substantially U-shape in plan view, and a contact piece 9d arranged along the left and right side walls of the body 3 and a core wire of a power supply line between the contact piece 9d. And a lock piece 9e to be clamped. The lock piece 9e is formed by cutting and raising, and is inclined in a direction away from the lower wall of the body 3 toward the front end, and the front end edge faces the contact piece 9d. A pair of electric wire insertion holes 3d are provided on the lower wall of the body 3 corresponding to the opposing portions of the contact piece 9d and the locking piece 9e, and a power supply line (not shown) is provided from the electric wire insertion hole 3d. Is inserted, the conductor of the core wire is sandwiched between the locking piece 9e and the contact piece 9d, and the leading edge of the locking piece 9e bites into the conductor of the core wire, so that the core wire falls off. Is prevented. That is, only by inserting the core wire of the power supply line into the electric wire insertion hole 3d, the core wire is held and the electrical connection to the terminal fitting 9 is made. In addition, the lower wall of the body 3 is provided with an electric wire removing hole 3e corresponding to each electric wire insertion hole 3d, and when the core wire of the power supply line connected to the quick connection terminal portion 9b is removed, the corresponding electric wire is removed. When the tool is inserted through the release hole 3e and the locking piece 9e is pressed upward by the tip of the tool, the locking piece 9e is bent in a direction away from the abutting piece 9d. , And the power supply line can be easily pulled out.
[0024]
Next, a procedure for assembling the lamp socket 1 will be briefly described below. First, the main part 6a of the plunger 6 is inserted into the insertion hole 3c of the body 3 from the rear, and the contact terminal 7, the coil spring 8 and the terminal fitting 9 are placed inside, and then the cover 4 is attached to the opening surface of the body 3. Then, the assembly of the lamp socket 1 is completed by fitting the assembly claws 4c of the cover 4 into the fitting recesses (not shown) of the body 3. Here, the plunger 6 is elastically urged forward via the contact terminal 7 by the spring force of the coil spring 8 housed in the socket body 2 in a compressed state, and the flange 6b comes into contact with the periphery of the insertion hole 3c. Thus, the plunger 6 is held movably from the insertion hole 3c in a state where the plunger 6 is prevented from falling out of the insertion hole 3c. That is, the plunger 6 and the coil spring 8 constitute a moving mechanism that enables the receiver 5 to move in the fitting direction with the base 41 and urges the receiver 5 toward the fluorescent lamp 40.
[0025]
The fixed lamp socket 1 'has a structure as shown in FIG. 9 and does not have the above-mentioned moving mechanism, but is movable in that the receiver 5 is fixed in the main portion 3a of the body 3. Although it is different from the lamp socket 1, the other configuration is almost the same, so that the detailed description is omitted.
[0026]
Next, a structure for mounting the lamp sockets 1 and 1 'to the appliance body 20 will be described. As shown in FIG. 1, the mounting plate 24 of the instrument body 20 has a locking hole 26 for locking the locking protrusion 12 a of the cover 4 and an insertion hole for inserting the mounting screw 14 screwed into the screw hole 13. 27 are provided through the mounting plate 24, and through holes 25, 25 into which the holding pieces 11, 11 are respectively inserted on the left and right sides with respect to a line connecting the locking hole 26 and the insertion hole 27 are formed. I have. The through holes 25, 25 extend in a direction substantially parallel to a line connecting the locking hole 26 and the insertion hole 27, and the width near the insertion hole 27 is smaller than that far from the insertion hole 27, and the width of the wide portion 25a is large. Is formed wider than the horizontal piece 11a of the holding piece 11, and the width dimension of the narrow portion 25b is narrower than the horizontal piece 11a of the holding piece 11, and wider than the thickness of the vertical piece 11b. Note that the narrow portions 25b, 25b and the locking holes 26 are arranged on a circumference having substantially the same radius around the insertion hole 27.
[0027]
Thus, when mounting the lamp sockets 1 and 1 'to the mounting plate 24, the rear surface of the socket body 2 was brought close to the mounting plate 24, and the holding pieces 11 and 11 were inserted into the wide portions 25a of the through holes 25, respectively. Thereafter, when the socket body 2 is slid along the longitudinal direction of the through hole 25 and the holding piece 11 is inserted into the narrow portion 25b of the through hole 25, the tip of the horizontal piece 11a as a holding projection and the cover are formed. The edge of the narrow portion 25b is sandwiched between the rear surface 4 (the rear wall of the socket body 2). Here, since the gap between the rear surface of the cover 4 and the front surface of the horizontal piece 11a is formed to have substantially the same thickness as the thickness of the mounting plate 24, when the holding piece 11 is inserted into the narrow portion 25b. The locking projection 12a is pressed forward by the surface of the mounting plate 24, and the distal end of the flexible piece 12 is bent forward. When the socket body 2 is slid with respect to the mounting plate 24 and the holding piece 11 is moved to the end of the narrow portion 25 b, the locking projection 12 a of the bending piece 12 is moved by the elastic force of the bending piece 12. The socket body 2 is temporarily held by the mounting plate 24 by fitting with the locking hole 26 of the socket 24. At this time, the screw hole 13 of the cover 4 communicates with the insertion hole 27 of the mounting plate 24, and the mounting screw 14 passed through the insertion hole 27 is screwed into the screw hole 13, so that the socket body 2 is connected to the mounting plate 24. It is fixed.
[0028]
By the way, in the lamp sockets 1 and 1 'in which the straight tube-type fluorescent lamps 40 having the bases at both ends are mounted, the force applied in the lamp pulling direction is smaller than that of the lamp sockets to which the single base fluorescent lamp is mounted. Since the mounting load in the lamp pulling direction is small, and in this embodiment, the force applied in the lamp pulling direction is received by the mounting screw 14 and the horizontal piece 11a of the holding piece 11, the tightening force of the mounting screw 14 is reduced. A small and small one can be used, and as a result, the size of the socket body 2 can be reduced.
[0029]
Further, when the mounting screw 14 is tightened with a screw or when a force for rotating the fluorescent lamp 40 is applied, a force for rotating the socket body 2 about the screw hole 13 into which the mounting screw 14 is screwed is applied to the socket. Although it is added to the main body 2, the vertical piece 11 b, which is a position regulating projection of the holding piece 11, comes into contact with the edge of the through hole 25 (narrow portion 25 b), and the locking projection 12 a locks with the locking hole 26. To stop the rotation of the socket body 2, and the force for rotating the socket body 2 is received by the three projections (the locking projections 12a and the vertical pieces 11b, 11b of the holding pieces 11, 11). The load received by the projections can be reduced to prevent the breakage of the projections, and if the load received by each projection is about the same as the conventional one, the mounting strength of the socket body 2 can be increased. In addition, since the three projections (the locking projection 12a and the vertical pieces 11b, 11b of the holding pieces 11, 11) are arranged at substantially equal distances from the screw hole 13, the three projections can evenly distribute the load. Can receive. Attachment means for attaching the socket body 2 to a plate-like attachment portion (the attachment plate 24 of the instrument body 20) by the bending piece 12, the locking projection 12a, and the horizontal piece 11a and the vertical piece 11b of the holding piece 11. Is configured.
[0030]
In addition, a bag-shaped partition wall 4f whose upper side is opened from a portion outside the flexible piece 12 is formed on the front side of the cover 4, and the partition wall 4f and the upper wall of the body 2 surround the flexible piece 12 in an assembled state. Is enclosed. As described above, the portion of the cover 4 where the flexible piece 12 is formed and the storage space for the conductive member 10 are partitioned by the partition wall 4f, so that dust and insects that have entered the inside through the slit 4d can be removed. Contact with the internal conductive member can be prevented.
[0031]
Next, the structure of the instrument body 20 will be described with reference to FIGS. The appliance body 20 is formed in a horizontally long rectangular frame shape by long frame bodies 21 and 21 arranged in parallel and frame bodies 22 and 22 connecting between both ends of the frame bodies 21 and 21, respectively. It is attached to a ceiling surface or the like by using an appropriate attachment means. Two movable lamp sockets 1 and 1 are attached to the inner surface of one (left side in FIG. 10) frame 22 facing in the longitudinal direction, and two fixed lamp sockets are mounted to the inner surface of the other frame 22. Shaped lamp sockets 1 ', 1' are mounted, and a fluorescent lamp 40 is mounted between the lamp sockets 1, 1 '. That is, the mounting plates 24 of the lamp sockets 1 and 1 'are formed from the inner surfaces of the frames 22 and 22. Incidentally, 23 in the figure is a reflection plate.
[0032]
A procedure for attaching the fluorescent lamp 40 to the lighting fixture of the present embodiment configured as described above will be described. First, when the fitting part 42 of the base 41 is inserted into the fitting recess 5 a of the receiver 5 with respect to the movable lamp socket 1, the guide part 5 b of the receiver 5 enters the fitting part 42. The pair of contact pieces (not shown) held by the fitting portion 42 come into contact with the contact portions 7a of the contact terminals 7 supported by the guide portions 5b, respectively. At this time, when the fluorescent lamp 40 is pushed toward the lamp socket 1, the plunger 6 is moved rearward in the longitudinal direction of the device main body 20 (the fitting direction of the base 41 and the holder 5) against the spring force of the coil spring 8. That is, the plunger 6 is moved in a direction (left side in FIG. 10) into the insertion hole 3 c of the lamp socket 1, and the plunger 6 is fitted with the fitting portion 42 of the base 41 fitted into the fitting recess 5 a of the receiving metal 5. At the same time, the base 41 enters the insertion hole 3c of the lamp socket 1. At this time, since the opposite end of the fluorescent lamp 40 moves to the left side in FIG. 10 from the position of the fixed lamp socket 1 ', the fluorescent lamp 40 can be inserted between the lamp sockets 1 and 1'. By pressing the fluorescent lamp 40 in the direction of the fixed lamp socket 1 ′, the base 41 on the opposite side is connected to the socket 5 of the lamp socket 1 ′. When the fluorescent lamp 40 is mounted between the lamp sockets 1 and 1 ′, the plunger 6 moves in a direction of retreating from the insertion hole 3 c of the lamp socket 1 by the spring force of the coil spring 8, and the plunger 6 is inserted into the lamp socket 1. The fluorescent lamp 40 is mounted on both lamp sockets 1 and 1 'in a state of protruding from the hole 3c (see FIG. 11).
[0033]
In this embodiment, an example is described in which a fluorescent lamp having an R17d-type base is mounted. However, the present invention is not intended to limit the fluorescent lamp to the above-described one, but a straight tube-type fluorescent lamp having bases at both ends. Then, the present invention is applicable to a lamp socket to which any fluorescent lamp is mounted.
[0034]
【The invention's effect】
As described above, the invention of claim 1 is a lamp socket to which a straight tube-type fluorescent lamp having bases at both ends is mounted, the base being provided with a receiving base for receiving the base of the fluorescent lamp. Mounting means for mounting the socket body to a plate-like mounting portion, comprising: a socket body; and a conductive member housed inside the socket body, connected to a power supply line, and electrically connected to a contact piece provided in the base. Is provided on the rear surface side of the socket main body, and the mounting means is separated from the rear wall except for one end side by a slit provided on the rear wall of the socket main body, and the other end is formed to be flexible in the front-rear direction. And a locking projection that projects rearward from the other end of the flexure piece and locks with a locked concave portion provided in the mounting portion, and a locking hole that projects rearward from the rear surface of the socket body and is provided in the mounting portion. Insertion And a pair of position regulating protrusions that stop rotation by contacting the edge of the through hole, and a pair of protrusions that protrude laterally from the tip of each position regulating protrusion and sandwich the mounting portion between the rear wall of the socket body. A pair of clamping projections, which clamp the mounting plate between the rear wall of the socket body and a pair of clamping projections provided on the bending piece by the elastic force of the bending piece. By fitting the locked concave portion of the mounting plate, the socket body can be mounted on the mounting plate, and when a force for rotating the fluorescent lamp is applied, the locking projection and the pair of position regulating projections are formed. Since the load is received by the three projections, the load received by each projection can be reduced to prevent damage to the projections, and if the load received by one projection is the same as that of the conventional socket, the socket as a whole is Body mounting strength Increases and can be attached reliably lamp socket. In addition, a lamp socket equipped with a double-ended straight fluorescent lamp has a lower mounting strength in the lamp pulling direction than a lamp socket fitted with a single-ended fluorescent lamp, and furthermore, a force applied in the lamp pulling direction. Is also received by a pair of clamping projections, so even when the socket body is screwed to the mounting part, a small mounting screw with a small tightening force can be used, so the lamp socket can be downsized and the socket body Since the is temporarily fixed to the mounting plate, there is also an effect that the screw tightening operation can be easily performed.
[0035]
According to a second aspect of the present invention, in the first aspect of the present invention, the mounting screw passed through the insertion hole provided in the mounting portion at a position substantially equidistant from the pressing projection and the pair of position regulating projections on the rear wall of the socket body. It is characterized by forming a screw hole for screwing, and when tightening the screw or when applying a force for rotating the fluorescent lamp, a force for rotating the socket body around the screw hole is applied, but a pressing protrusion and a pair of Since the position regulating projections are provided at positions substantially equidistant from the screw holes, there is an effect that the three projections can evenly receive the load.
[0036]
According to a third aspect of the present invention, in the first aspect of the present invention, a bag-shaped partition wall surrounding the bending piece is formed inside the socket body, and dust or the like entering the inside of the socket body through the slit is formed. There is an effect that insects and the like can be prevented from adhering to the conductive member.
[0037]
According to the invention of claim 4, a straight tube-type fluorescent lamp having bases at both ends, the lamp socket according to any one of claims 1 to 3, wherein the base of the fluorescent lamp is mounted, and the lamp socket, It is characterized by comprising a fixture main body to be held and a ballast attached to the fixture main body and lighting a fluorescent lamp attached to the lamp socket, and provided with a small lamp socket that can be securely attached to the fixture main body. Lighting equipment can be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view of a state before a movable type lamp socket of the present embodiment is attached to an appliance body.
FIG. 2 is an exploded perspective view of the same.
3A and 3B show the same as above, where FIG. 3A is a front view and FIG. 3B is a cross-sectional view along AA.
FIG. 4 is a bottom view of the above.
5A and 5B show the same cover, wherein FIG. 5A is a perspective view as viewed from the rear side, and FIG. 5B is a sectional view taken along line BB.
FIG. 6 is a perspective view of the cover as viewed from the front side.
FIG. 7 is a rear view of the above.
FIG. 8 is a perspective view of the same as viewed from the rear side.
FIG. 9 is an exploded perspective view of the fixed type lamp socket.
FIG. 10 is a bottom view of a lighting device using the lamp socket.
FIG. 11 is a cross-sectional view taken along the line CC of FIG.
FIG. 12 is a sectional view taken along line DD of FIG. 11, showing the lighting fixture of the above.
13A and 13B show a conventional lamp socket, in which FIG. 13A is a partially cutaway side view showing a state where the lamp socket is mounted on a mounting plate, and FIG. 13B is a rear view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lamp socket 2 Socket body 3 Body 4 Cover 4d Slit 6 Plunger 11 Nipping piece 11a Horizontal piece 11b Vertical piece 12 Flexure piece 12a Locking projection 24 Mounting plate 25 Through hole 25b Narrow portion 26 Locking hole

Claims (4)

両端に口金を有する直管形の蛍光ランプが装着されるランプソケットであって、蛍光ランプの口金を受ける受金が前面に設けられた樹脂製のソケット本体と、ソケット本体の内部に収納され給電線が接続されるとともに口金が備える接触片に電気的に接続される導電部材とを備え、ソケット本体を板状の取付部位に取り付けるための取付手段をソケット本体の後面側に設け、該取付手段を、ソケット本体の後壁に設けたスリットによって一端側を除いて後壁から分離され、他端部が前後方向において撓み自在に形成された撓み片と、撓み片の他端部から後方に向かって突出し取付部位に設けた被係止凹部と係止する係止突起と、それぞれソケット本体の後面から後方に突出し、取付部位に設けた貫通孔に挿入されて貫通孔の縁と当接することにより回り止めを行う一対の位置規制突起と、各位置規制突起の先端部から側方に突出し、ソケット本体の後壁との間で取付部位を挟持する一対の挟持用突起とで構成したことを特徴とするランプソケット。A lamp socket in which a straight tube-type fluorescent lamp having caps at both ends is mounted, a resin socket body provided on a front surface thereof with a receiver for receiving a cap of the fluorescent lamp, and a lamp socket housed inside the socket body. A conductive member to which an electric wire is connected and which is electrically connected to a contact piece provided in the base; mounting means for mounting the socket body to a plate-shaped mounting portion is provided on a rear surface side of the socket body; A flexible piece, which is separated from the rear wall except for one end by a slit provided in the rear wall of the socket body, and the other end of which is formed to be flexible in the front-rear direction, and faces rearward from the other end of the flexible piece. The locking projections that project and protrude rearward from the rear surface of the socket body, respectively, and that are inserted into the through holes provided in the mounting portion and abut against the edges of the through holes. A pair of position restricting protrusions for further preventing rotation, and a pair of holding protrusions protruding sideward from a tip end of each position restricting protrusion and holding the mounting portion between the rear wall of the socket body. Features lamp socket. ソケット本体の後壁において、押圧突起及び一対の位置規制突起から略等距離の位置に、取付部位に設けた挿通孔に通した取付ねじが螺合するねじ穴を形成したことを特徴とする請求項1記載のランプソケット。A screw hole is formed in the rear wall of the socket body at a position substantially equidistant from the pressing protrusion and the pair of position regulating protrusions, into which a mounting screw passed through an insertion hole provided in the mounting portion is screwed. Item 1. The lamp socket according to Item 1. ソケット本体の内部に撓み片の周りを囲む袋状の隔壁を形成したことを特徴とする請求項1記載のランプソケット。2. The lamp socket according to claim 1, wherein a bag-like partition surrounding the bending piece is formed inside the socket body. 両端に口金を有する直管形の蛍光ランプと、蛍光ランプの口金が装着される請求項1乃至請求項3の何れか1つに記載のランプソケットと、ランプソケットを保持する器具本体と、器具本体に取り付けられてランプソケットに装着される蛍光ランプを点灯させる安定器とを備えて成ることを特徴とする照明器具。4. A fluorescent lamp of a straight tube type having a base at both ends, a base of the fluorescent lamp to which a base of the fluorescent lamp is mounted, an apparatus main body holding the lamp socket, and an apparatus. A lighting device, comprising: a ballast mounted on a main body to turn on a fluorescent lamp mounted on a lamp socket.
JP2002311915A 2002-10-25 2002-10-25 Lamp socket and lighting apparatus using the same Expired - Fee Related JP3867040B2 (en)

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Application Number Priority Date Filing Date Title
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JP3867040B2 JP3867040B2 (en) 2007-01-10

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007123218A (en) * 2005-10-28 2007-05-17 Hitachi Lighting Ltd Fluorescent lamp appliance
JP2010061971A (en) * 2008-09-03 2010-03-18 Hosiden Corp Circuit board connection structure of connection device
JP2010244988A (en) * 2009-04-09 2010-10-28 Panasonic Electric Works Co Ltd Lighting apparatus
JP2011216285A (en) * 2010-03-31 2011-10-27 Panasonic Electric Works Co Ltd Lighting fixture
JP2012099484A (en) * 2010-11-03 2012-05-24 Visteon Global Technologies Inc Lighting system for appliance
CN112186699A (en) * 2020-09-01 2021-01-05 温州优骏电气科技有限公司 Superconducting lightning protection structure and assembling method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007123218A (en) * 2005-10-28 2007-05-17 Hitachi Lighting Ltd Fluorescent lamp appliance
JP2010061971A (en) * 2008-09-03 2010-03-18 Hosiden Corp Circuit board connection structure of connection device
JP2010244988A (en) * 2009-04-09 2010-10-28 Panasonic Electric Works Co Ltd Lighting apparatus
JP2011216285A (en) * 2010-03-31 2011-10-27 Panasonic Electric Works Co Ltd Lighting fixture
JP2012099484A (en) * 2010-11-03 2012-05-24 Visteon Global Technologies Inc Lighting system for appliance
CN112186699A (en) * 2020-09-01 2021-01-05 温州优骏电气科技有限公司 Superconducting lightning protection structure and assembling method thereof

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