JP4207584B2

JP4207584B2 - lighting equipment

Info

Publication number: JP4207584B2
Application number: JP2003018835A
Authority: JP
Inventors: 清斉藤
Original assignee: Panasonic Corp; Matsushita Electric Works Ltd
Current assignee: Panasonic Corp; Panasonic Electric Works Co Ltd
Priority date: 2003-01-28
Filing date: 2003-01-28
Publication date: 2009-01-14
Anticipated expiration: 2023-01-28
Also published as: JP2004234887A

Description

【０００１】
【発明の属する技術分野】
本発明は、器具本体の基板に表側から端子台が取着される照明器具、詳しくはその端子台の取り付け構造に関するものである。
【０００２】
【従来の技術】
一般に、照明器具の端子台は器具本体内に納められている。しかしながら、照明器具が天井等に埋め込まれた状態に施工される埋め込み型である場合、端子台が器具本体内に納められていると、その点検や取替が困難となる。そこで、器具本体の基板に表側から端子台を取着して、この端子台を覆い隠すように反射板を取り付けた照明器具が提供されている。この場合、器具本体を天井等の施工個所から取り外すことなく反射板を取り外すだけで、端子台のメンテナンス作業を行うことができる。
【０００３】
そして、器具本体の基板に表側から端子台を取着する照明器具には、図９に示す、端子台３を基板１に係止して取着するタイプのものと、図１０に示す、端子台３を基板１にネジ止めして取着するタイプのものとがある。係止タイプの照明器具は、図９に示す如く、器具本体の基板１に係止開口２を形成し、端子台３に同係止開口２の開口縁部分に係止される対の係止凸片４を突設し、両係止凸片４を相互の間隔が狭まるように弾性変形させ係止開口２に挿入して各々同係止開口２の相対向する開口縁部分に係止させることにより、端子台３を基板１に対しその表側から取着するものである。
【０００４】
この場合、両係止凸片４の先端部分外側に先端側から基端側へと徐々に高くなるよう傾斜して突出する凸起６を形成し、この両凸起６が係止開口２の相対向する開口縁部分に各々係止されるようになしている。又、端子台３の相対向する外側面3a、3b部分の各々で対の係止凸片４を端子台３より背方に突設し、対の係止凸片４は同端子台３の外側面3a、3bに沿った方向で相互に拡開狭小動作して弾性変形されるものとなし、両対の係止凸片４と対応する位置各々で基板１には係止開口２を配置形成している。なお、端子台３の背面側の中程には位置決め用突起13とネジ取付孔14とアース用突起15とが並設されており、これ等と対応する位置で基板１には貫通孔16ａ、16ｂ、16ｃが配置形成されている。
【０００５】
一方、ネジ止めタイプの照明器具は、図１０に示す如く、基板１の表側に端子台３を配置し、この端子台３の背面に形成されたネジ取付孔14に、同基板１の裏側から貫通孔16ｂを通して固定ネジ31を螺合させることにより、端子台３を基板１に対しその表側から取着するものである。この場合、位置決め用突起13或いはアース用突起15が貫通孔16ａ、16ｃに挿入係合されることで、端子台３は位置決めされ回動しないように固定される。
【０００６】
しかしながら、上記いずれのタイプの照明器具にあっても、基板１の表側から端子台３を取り外し難いという問題がある。すなわち、図９に示す係止タイプのものでは、凸起６の傾斜面が係止開口２の開口縁部分に摺接することで、両係止凸片４は相互の間隔が狭まるように狭小動作して弾性変形され、これにより、両係止凸片４を係止開口２に挿入係止させる作業は容易に行われるが、逆に、両係止凸片４を係止開口２から抜き外そうとすると、同凸起６が係止開口２の開口縁部分に引っ掛かって容易には取り外すことができないものである。
【０００７】
又、この場合、係止凸片４の凸起６と係止開口２の開口縁部分との係合をゆるく設定することで、抜き外し易くすることも可能であるが、そうすると、端子台３は基板１から不用意に脱落し易くなる。例えば、施工時に、端子台に外部配線である電源ケーブルが接続された後、その配線処理は行われるが、その際、電源ケーブルは引っ張られたり折り曲げられたりするもので、これにより、端子台に外力が作用してこの端子台は外れ易くなる。この場合、端子台はアース端子を備えていることが多いので、この端子台の外れは重大な問題となる恐れがある。
【０００８】
又、図１０に示すネジ止めタイプのものは、端子台３が基板１の表側に取着されるものではあるが、ここでは、基板１の裏側から固定ネジ31を螺合させるものであるため、端子台３を基板１に取着した後でないと器具本体を埋め込み施工することができないものである。そして、この場合、端子台３が基板１に対して確実強固に取着固定されるものではあるが、施工後に基板１から端子台３を取り外そうとすると、基板１の裏側から固定ネジ31を外す作業を必要とするため、器具本体を天井等の施工個所から取り外さなければならず、端子台３の取替作業が極めて困難となるものである。
【０００９】
ところで、実開昭５６−７０９０３号公報や実開平２−４２３１５号公報等に示される如く、器具本体の基板に端子台を着脱自在に取着した照明器具も知られている。しかしながら、これ等いずれのものも、端子台を基板に別部材を介して取着したものであり、別部材（実開昭５６−７０９０３号公報に示されるものではばね(20)、実開平２−４２３１５号公報に示されるものではホルダ（８））を必要として部材点数が増えコストアップにもなり、端子台の取着に関連する構造が複雑化してここでの組立作業も困難になるという問題を有している。
【００１０】
【特許文献１】
実開昭５６−７０９０３号公報
【００１１】
【特許文献２】
実開平２−４２３１５号公報
【００１２】
【発明が解決しようとする課題】
本発明は、上記従来の技術における問題を悉く解決するために発明されたもので、その課題は、端子台が器具本体の基板に対し簡単且つ確実に取着され、施工後の端子台の取替作業も容易な照明器具を提供することである。
【００１３】
【課題を解決するための手段】
本発明の請求項１記載の照明器具は、器具本体の基板に係止開口を形成し、端子台には同係止開口の開口縁部分に係止される対の係止凸片を突設し、両係止凸片を相互の間隔が狭まるように弾性変形させ係止開口に挿入して各々同係止開口の相対向する開口縁部分に係止させることにより、端子台を基板に対しその表側から着脱自在に取着してなる照明器具であって、係止開口に連続して開口する解除具挿入用の解除開口を基板の端子台が被さらない位置に形成してなるものである。
【００１４】
したがって、この場合、両係止凸片を相互の間隔が狭まるように弾性変形させて係止開口に挿入し、この両係止凸片各々を同係止開口の相対向する開口縁部分に係止させることによって、端子台を基板に対しその表側から簡単に取着することができ、そこでの組立作業性は良好となる。そして、取着された状態では、両係止凸片がその弾性復元力で係止開口の相対向する開口縁部分に係止されることで、端子台は基板に対し安定して確実に取着固定されており、施工時及び施工後においても同端子台が不用意に外れることはない。
【００１５】
ここにおいて、基板には解除具挿入用の解除開口が形成されているので、施工後であっても、解除開口に表側からドライバーやニッパー等の工具を解除具としてその先端部分を挿入し、この解除具によって基板の裏側で係止開口の相対向する開口縁部分に係止されている両係止凸片を外すことができる。しかも、解除開口は係止開口に連続して開口され、基板の端子台が被さらない位置に形成されているので、解除具で両係止凸片を外す作業を行う際、解除開口の口縁部分や端子台は邪魔にならず、そのため、端子台を基板から容易に取り外すことができ、端子台の取替作業も器具本体を施工個所から取り外すことなく、その基板の表側から容易に行えるものとなる。
【００１６】
本発明の請求項２記載の照明器具は、上記請求項１記載の照明器具において、基板を金属板材料で形成し、係止凸片を端子台と一体に合成樹脂材料で形成したことを特徴とするものである。
【００１７】
したがって、この場合は特に、基板が金属板材料で形成されるので、この基板に打ち抜きプレス加工等を施すことによって、係止開口や解除開口等を簡単に形成することができ、又、係止凸片は端子台と一体に合成樹脂材料で形成されるので、部品点数を増加させることなく係止凸片を簡単に形成することができて、同係止凸片には合成樹脂材による適切な弾性も付与される。
【００１８】
本発明の請求項３記載の照明器具は、上記請求項１又は２記載の照明器具において、両係止凸片の先端部分外側に先端側から基端側へと徐々に高くなるよう傾斜して突出する凸起を形成し、この両凸起が係止開口の相対向する開口縁部分に各々係止されるようになしたことを特徴とするものである。
【００１９】
したがって、この場合は特に、両係止凸片を係止開口に挿入係止させる際、凸起の傾斜面が係止開口の開口縁部分に摺接することで、両係止凸片は相互の間隔が狭まるように狭小動作して弾性変形され、これにより、両係止凸片を係止開口に対しスムーズに挿入係止させることができる。又、取着された状態では、凸起の高い部分が係止開口の開口縁部分に係止されて、両係止凸片は係止開口から抜け外れ難く、この状態であっても、解除開口から挿入される解除具を同係止開口の開口縁部分に係止された凸起に押し当てて、両係止凸片を容易に外すことができる。
【００２０】
本発明の請求項４記載の照明器具は、上記請求項１〜３のいずれか一つに記載の照明器具において、端子台の相対向する外側面部分の各々で対の係止凸片を端子台より背方に突設し、対の係止凸片は同端子台の外側面に沿った方向で相互に拡開狭小動作して弾性変形されるものとなし、両対の係止凸片と対応する位置各々で基板には係止開口を配置形成し、両係止開口の相反する外側の開口縁部分に連続させて各々で各係止開口よりも大きく開口する解除開口を形成したことを特徴とするものである。
【００２１】
したがって、この場合は特に、対の係止凸片と対の係止開口とが端子台の両側各々で係止されることになるので、基板に対し同端子台はより安定した状態で確実に取着固定される。しかも、対の係止凸片は端子台の外側面に沿った方向で相互に拡開狭小動作して弾性変形されるものであり、基板の解除開口が係止開口よりも大きく開口するもので同外側面に沿って形成されることになるため、大きな解除開口から挿入される解除具で両係止凸片を容易に狭小動作させるよう弾性変形させることができて、両係止凸片を外す係止解除作業はより簡単となる。
【００２２】
本発明の請求項５記載の照明器具は、上記請求項１〜３のいずれか一つに記載の照明器具において、端子台の一外側面部分で対の係止凸片を端子台より背方に突設し、この対の係止凸片は同端子台の外側面に沿った方向で相互に拡開狭小動作して弾性変形されるものとなし、同対の係止凸片と対応する位置で基板には係止開口を形成し、この係止開口の外側の開口縁部分に連続させて同係止開口よりも大きく開口する解除開口を形成し、端子台の前記一外側面部分の反対側では端子台より背方に抜け止め係止体を突設し、基板には端子台を前記係止開口側へ向かう方向にスライド移動させることにより同抜け止め係止体が抜け止め係止される係止受け開口を形成したことを特徴とするものである。
【００２３】
したがって、この場合は特に、対の係止凸片と係止開口とが端子台の片側で係止され、ここでは、対の係止凸片が端子台の外側面に沿った方向で相互に拡開狭小動作して弾性変形されるものであり、基板の解除開口は係止開口よりも大きく開口するもので同外側面に沿って形成されることになるため、大きな解除開口から挿入される解除具で両係止凸片を容易に狭小動作させるよう弾性変形させることができて、両係止凸片を外す係止解除作業はより簡単となる。
【００２４】
又、端子台の反対側では、抜け止め係止体が基板の係止受け開口にスライドされて抜け止め係止されるので、前記両係止凸片と係止開口との係止状態にあっては、同抜け止め係止体がスライドできず係止受け開口からは抜け外れることがないものである。そのため、端子台の両側での抜け止め係止体による係止及び前記両係止凸片による係止がより外れ難い状態となって、基板に対し同端子台はより安定した状態で確実に取着固定される。
【００２５】
しかも、端子台を係止開口側へ向かう方向にスライド移動させることで、抜け止め係止体を係止受け開口に抜け止め係止させた後に、両係止凸片を係止開口に挿入係止させ、或いは、端子台の片側のみにおいて解除具で両係止凸片を係止開口から外し、その後、端子台を前記と反対方向にスライド移動させることで、抜け止め係止体を係止受け開口から抜き外し、このようにして、端子台の基板に対する着脱作業をより簡単且つ確実に行うことができる。
【００２６】
本発明の請求項６記載の照明器具は、上記請求項５記載の照明器具において、抜け止め係止体を係止凸片と同形状の対の抜け止め片で形成し、係止受け開口には抜け止め係止体が出し入れされる大開口部と同抜け止め係止体が抜け止め係止される小開口部とを配設して、この小開口部の開口縁部分に両抜け止め片が相互に狭小動作するのを阻止するストッパー片を突設したことを特徴とするものである。
【００２７】
したがって、この場合は特に、前記抜け止め係止体が係止凸片と同形状の対の抜け止め片で形成されるので、同抜け止め係止体は両係止凸片と形状が統一されて設計容易なものとなる。しかも、ここでは、抜け止め係止体が係止受け開口の大開口部から出し入れされ、同係止受け開口の小開口部で抜け止め係止されるものであり、この抜け止め係止状態で、小開口部の開口縁部分に突設されるストッパー片が両抜け止め片相互の狭小動作を阻止するため、抜け止め係止体は係止受け開口から抜け外れないようより確実に係止される。
【００２８】
本発明の請求項７記載の照明器具は、上記請求項１〜６のいずれか一つに記載の照明器具において、基板の表側に端子台を覆い隠すよう反射板を取り外し得るようにして取着し、この反射板よりも表側で照明ランプを器具本体に接続保持させたことを特徴とするものである。
【００２９】
したがって、この場合は特に、基板の表側に取着される端子台が反射板で覆い隠されて外観良く保護され、しかも、天井等に埋め込まれた状態に施工される埋め込み型であっても、器具本体を施工個所から取り外すことなく、同反射板を取り外して端子台のメンテナンスや取替作業を簡単に行うことができる。又、照明ランプは反射板よりも表側で接続保持されていて、支障なく照明作用をなすもので、その交換も容易なものである。
【００３０】
【発明の実施の形態】
図１、２は、本発明の請求項１〜４、７に対応した第一の実施形態である照明器具を示している。この実施形態の照明器具は、器具本体Ａの基板１に係止開口２を形成し、端子台３には同係止開口２の開口縁部分2aに係止される対の係止凸片４を突設したものである。そして、両係止凸片４を相互の間隔が狭まるように弾性変形させ係止開口２に挿入して各々同係止開口２の相対向する開口縁部分2aに係止させることにより、端子台３を基板１に対しその表側から着脱自在に取着してなるものである。この場合に、係止開口２に連続して開口する解除具挿入用の解除開口５を基板１の端子台３が被さらない位置に形成している。
【００３１】
又、この実施形態の照明器具では、基板１を金属板材料で形成し、係止凸片４を端子台３と一体に合成樹脂材料で形成している。しかも、この場合、両係止凸片４の先端部分外側に先端側から基端側へと徐々に高くなるよう傾斜して突出する凸起６を形成し、この両凸起６が係止開口２の相対向する開口縁部分2aに各々係止されるようになしている。
【００３２】
更には、端子台３の相対向する外側面3a、3b部分の各々で対の係止凸片４を端子台３より背方に突設し、対の係止凸片４は同端子台３の外側面3a、3bに沿った方向で相互に拡開狭小動作して弾性変形されるものとなしている。そして、両対の係止凸片４と対応する位置各々で基板１には係止開口２を配置形成し、両係止開口２の相反する外側の開口縁部分に連続させて各々で各係止開口２よりも大きく開口する解除開口５を形成している。
【００３３】
以下、この実施形態の照明器具を、より具体的に説明する。端子台３はその外殻が合成樹脂材料で中空略直方体形状に形成されたもので、その表面側には電源端子やアース端子等の複数の端子孔（図示せず）が配設されており、電源端子となる端子孔には外部配線である電源ケーブル19（後述する）が接続される。そして、端子台３の相対向する両側の外側面3a、3bには、各々で対の係止凸片４が一体に突設されている。係止凸片４は端子台３の両側で計二対配置されており、いずれの係止凸片４もその先端部分が各外側面3a、3bから同端子台３の背面よりも背方へ突出するように突設されている。
【００３４】
対となる両係止凸片４は合成樹脂材料で形成されていることで適度な弾性を有し、相互に間隔が広まったり狭まったりするように拡開狭小動作して弾性変形されるもので、その拡開狭小動作する方向は端子台３の各外側面3a、3bに沿った方向となる。又、両係止凸片４の前記端子台３の背面よりも背方へ突出する先端部分には、その外側に先端側から基端側へと徐々に高くなるように傾斜した略片側矢尻三角形状の凸起６が突出形成されている。
【００３５】
前記凸起６は、係止凸片４が後記基板１の係止開口２に挿入される際に、その傾斜した外側面が同係止開口２の開口縁部分2aに摺接されるものである。又、係止凸片４が係止開口２内で係止された状態では、凸起６の高く突出した側の端縁部分が同係止開口２の開口縁部分2aに係止されるものである。その際、両係止凸片４はその弾性により狭小された状態から拡開するように復元し、この弾性復元力によって凸起６が係止開口２の開口縁部分2aに安定状態で抜け外れないよう係止される。この場合に、係止凸片４の凸起６以外の外側面が係止開口２の開口縁部分2aに弾性的に当接されればより安定した係止状態となるが、必ずしも当接されなければならないものではない。
【００３６】
又、端子台３の背面側の中程には、位置決め用突起13とネジ取付孔14とアース用突起15とが、この順で前記両外側面3a、3bに沿った方向に並設されている。この構造は、上記従来の技術として図９で示した端子台３をそのまま採用しているために存在するものであり、本発明の照明器具では、位置決め用突起13やネジ取付孔14等が不要となる。ただ、ネジ取付孔14については、端子台３が取り外されることのない施工現場であるような場合に、上記図１０で説明した如く、このネジ取付孔14に固定ネジ31を螺合させて、同端子台３を取着固定してもよい。位置決め用突起13についても、端子台３の位置決めをより確実に行おうとする場合には、この位置決め用突起13を残存させて用いてもよい。
【００３７】
基板１は後記器具本体Ａの中程平坦部分を構成するもので、鋼板等の金属板材で形成されている。基板１には、前記端子台３の二対の係止凸片４を各対ごとで挿入係止する略矩形状の係止開口２が形成されている。両係止開口２の相反する外側の開口縁部分には、これに連続し同係止開口２よりも大きく開口する略矩形状の解除開口５が形成されている。よって、係止開口２と解除開口５とが連続した開口全体は、基板１の中程両側で対称形状となる。
【００３８】
そして、この場合、係止開口２の係止凸片４が係止される両開口縁部分2aに隣接する片側の開口縁部分を、その辺全長にわたって解除開口５と連通開口させており、この解除開口５は同係止開口２の両開口縁部分2a間の巾寸法よりも大きな巾寸法となるように開口形成されている。又、係止開口２及び解除開口５は、基板１に打ち抜きプレス加工等を施すことにより、一連の開口として同時に形成されるものである。
【００３９】
基板１の中程には、前記両側の係止開口２及び解除開口５の間で、前記端子台３の位置決め用突起13、ネジ取付孔14、アース用突起15と対応する位置に貫通孔16ａ、16ｂ、16ｃが配置形成されている。この基板１に前記端子台３を取着する場合には、位置決め用突起13及びアース用突起15が貫通孔16ａ、16ｃに挿入係合されて納められ、これにより、同端子台３は回動しないよう位置決めされる。なお、この構造についても、上記従来の技術として図９で示した端子台３をそのまま採用しているためのものであり、本発明の照明器具では不要となる。
【００４０】
ところで、この実施形態の照明器具は、例えば、図３に示す如き構造としてその全体が施工されるものである。この場合、天井Ｂに略矩形状の取付用開口17が形成され、器具本体Ａは同取付用開口内17に埋め込まれた状態に施工される。取付用開口17内には吊り下げ用の取付ボルト18が垂設されており、又、同取付用開口17からは外部配線である電源ケーブル19が導出され、この電源ケーブル19は器具本体Ａとなる基板１を貫通して前記端子台３に接続される。
【００４１】
器具本体Ａは下方に開口した略矩形箱状であり、その長手方向で相対向する両側内面に対のソケット20が配設されており、同器具本体Ａの底板部分となる基板１の下面には安定器21が設置固定され、この安定器21と接続される前記端子台３も同基板１の下面に取着されている。そして、器具本体Ａは前記取付用開口17に下方から嵌め込まれて施工されるもので、その際、同器具本体Ａの基板１に形成された取付孔22に前記取付ボルト18が挿通され、この取付ボルト18には取付ナット23が螺合され、この取付ナット23をワッシャ24を介し同基板１の下面に対して締め付けることにより、器具本体Ａは天井Ｂ内に埋め込み施工されて吊り下げ固定される。
【００４２】
更に、ここでは、基板１の表側に端子台３を覆い隠すよう反射板25を取り外し得るようにして取着し、この反射板25よりも表側で照明ランプ26を器具本体Ａに接続保持させている。この場合、反射板25は断面略Ｖ字状に折曲した長板状に形成されており、基板１の中程部分にその長手方向に沿ってネジ止め等により取着固定されて、前記端子台３及び安定器21等の電気部品や取付ボルト18と取付ナット23との螺合部位を覆い隠すものである。そして、反射板25の両側各々では直管型の蛍光灯である照明ランプ26が、前記器具本体Ａに配設されたソケット20に接続保持されることによって装着される。
【００４３】
又、この実施形態の照明器具は、図４に示す如き構造としてその全体が施工されてもよい。この場合、器具本体Ａは矩形平板状の基板１で形成され、その両側に複数対の取着片27が突設されている。又、反射板25は下方に開口した略矩形箱状に形成され、その底板部分の中程に断面略Ｖ字状に折曲された部分が形成されており、この断面略Ｖ字状に折曲した部分にて前記端子台３及び安定器21等の電気部品や取付ボルト18と取付ナット23との螺合部位が覆い隠されるもので、同反射板25は天井Ｂの取付用開口17に下方から嵌め込まれて器具本体Ａに取着固定されるものである。
【００４４】
その際、器具本体Ａとなる基板１の長手方向の両端部分各々で対にして垂設されるソケット20が反射板25を貫通してその下方に突設され、この状態で、同反射板25は前記器具本体Ａの各取着片27に対してツマミネジ28で取着固定される。そして、反射板25の下方に突設された各対のソケット20に、照明ランプ26が接続保持されることによって装着される。なお、それ以外の構造は、前記図３に示したものと同様であり、ここではその説明を省略する。
【００４５】
したがって、この実施形態の照明器具においては、両係止凸片４を相互の間隔が狭まるように弾性変形させて係止開口２に挿入した後、この両係止凸片４各々をその弾性復元力で同係止開口２の相対向する開口縁部分2aに係止させることによって、端子台３を基板１に対しその表側から簡単に取着することができ、そこでの組立作業性は良好となる。そして、両係止凸片４がその弾性復元力で拡開動作して係止開口２の相対向する開口縁部分2aに係止されることにより、取着された状態では、端子台３が基板１に対し安定した状態で確実に取着固定されることになって、施工時に配線処理している際や器具本体Ａの埋め込み施工後においても同端子台３が不用意に外れることはない。
【００４６】
この場合、基板１には解除具挿入用の解除開口５が形成されているので、施工後であっても、解除開口５に表側からドライバーやニッパー等の工具を解除具としてその先端部分を挿入し、この解除具によって基板１の裏側で係止開口２の相対向する開口縁部分2aに係止されている両係止凸片４の各係止部分を外すことができる。しかも、解除開口５は係止開口２に連続して開口されると共に、基板１の端子台３が被さらない位置に形成されているので、解除具で両係止凸片４を外す作業を行っている際に、解除開口５の口縁部分や端子台３は邪魔にならず、それ故、端子台３を基板１から容易に取り外すことができ、端子台３を交換する取替作業も器具本体Ａを施工個所から取り外すことなく、その基板１の表側から容易に行えるものとなる。
【００４７】
又、この実施形態の照明器具においては、基板１が鋼板等の金属板材料で形成されるので、この基板１に打ち抜きプレス加工等を施すことによって、係止開口２や解除開口５等の開口を簡単に形成することができる。しかも、両係止凸片４は端子台３と一体に合成樹脂材料で形成されるので、部品点数を増加させることなく両係止凸片４を簡単に形成することができて、各係止凸片４には合成樹脂材による適切な弾性も付与される。
【００４８】
又、この実施形態の照明器具においては、両係止凸片４を係止開口２に挿入係止させる際に、両側の凸起６の傾斜した外側面が係止開口２の相対向する両開口縁部分2aに摺接することで、両係止凸片４は相互の間隔が狭まるように狭小動作して弾性変形され、これにより、両係止凸片４を係止開口２に対してスムーズに挿入係止させることができる。又、取着された状態では、各凸起６の高い部分が係止開口２の開口縁部分2aに係止されて、両係止凸片４は係止開口２から抜け外れ難く、この係止取着状態であっても、解除開口５から挿入される解除具を同係止開口２の開口縁部分に係止された各凸起６に押し当てて、両係止凸片４を容易に外すことができる。
【００４９】
更に、この場合、対の係止凸片４と対の係止開口２とが端子台３の両側各々で係止されることになるので、基板１に対して同端子台３はより安定した状態で確実に取着固定される。しかも、対の係止凸片４は端子台３の外側面3a、3bに沿った方向で相互に拡開狭小動作して弾性変形されるものであり、基板１の解除開口５が係止開口２よりも大きく開口するもので同外側面3a、3bに沿って形成されることになるため、大きな解除開口５から挿入される解除具で両係止凸片４を容易に狭小動作させるよう弾性変形させることができて、両係止凸片４を外す係止解除作業はより簡単となる。
【００５０】
又、この実施形態の照明器具においては、基板１の表側に取着される端子台３や安定器21等が、反射板25で覆い隠されて外観良く保護されるものであり、しかも、天井Ｂに埋め込まれた状態に施工される埋め込み型であっても、器具本体Ａを施工個所から取り外すことなく、同反射板25を取り外して端子台３のメンテナンスや取替作業を簡単に行うことができるものである。又、照明ランプ26は反射板25よりも表側で接続保持されていて、支障なく照明作用をなすもので、その交換も容易なものである。
【００５１】
図５〜８は、本発明の請求項１〜３、５〜７に対応した第二の実施形態である照明器具を示している。この実施形態の照明器具では、図５、６に示す如く、端子台３の一外側面3a部分で対の係止凸片４を端子台３より背方に突設し、この対の係止凸片４は同端子台３の外側面3aに沿った方向で相互に拡開狭小動作して弾性変形されるものとなし、同対の係止凸片４と対応する位置で基板１には係止開口２を形成し、この係止開口２の外側の開口縁部分に連続させて同係止開口２よりも大きく開口する解除開口５を形成している。
【００５２】
そして、端子台３の前記一外側面3a部分の反対側の外側面3bでは、端子台３より背方に抜け止め係止体７を突設し、基板１には端子台３を前記係止開口２側へ向かうα方向にスライド移動させることにより同抜け止め係止体７が抜け止め係止される係止受け開口８を形成している。ここでは、抜け止め係止体７を前記係止凸片４と同形状の対の抜け止め片９で形成し、係止受け開口８には抜け止め係止体７が出し入れされる大開口部10と同抜け止め係止体７が抜け止め係止される小開口部12とを配設して、この小開口部12の開口縁部分に両抜け止め片９が相互に狭小動作するのを阻止するストッパー片12を突設してもいる。
【００５３】
この場合、係止受け開口８となる大開口部10及び小開口部11は、いずれも略矩形状で相互に隣接して連通開口されており、同小開口部11の大開口部10と連通する側とは反対側の開口縁部分の中程位置に略矩形板状のストッパー片12が一体に延設されている。そのため、図６に示す如く、係止受け開口８の小開口部11側では、ストッパー片12の両側に大開口部10へと開口したスリット29が形成され、この両スリット29に端子台３の両抜け止め片９をα方向にスライドさせて抜け止め係止させることができる。
【００５４】
ここで、この実施形態の照明器具における端子台３の着脱動作を、図７、８に基づいて説明する。図７は、端子台３を基板１に着脱させている途中の状態を示し、図８は、端子台３を基板１に取着固定した状態を示している。端子台３を基板１に取着する場合、図７に示す如く、まず、抜け止め係止体７を係止受け開口８に大開口部10の位置で挿入して端子台３をａ方向にスライドさせる。これによって、抜け止め係止体７は係止受け開口８内で大開口部10から小開口部11へとスライド移動し、同小開口部11にてその開口縁部分に凸起６が係止すると共に、両抜け止め片９相互の狭小動作がストッパー片12にて阻止され、同抜け止め係止体７は係止受け開口８に抜け外れないよう係止される。
【００５５】
前記抜け止め係止体７が係止受け開口８に抜け止め係止された状態で、この係止部位を中心にして端子台３をｂ方向に回動させることにより、両係止凸片４は係止開口２に挿入係止されて、図８に示す如く、端子台３が基板１に取着固定された状態となる。逆に、端子台３を基板１から取り外す場合には、同基板１の表側から解除開口５にドライバーやニッパー等の工具を解除具30としてその先端部分を挿入し、この解除具30を係止開口２の裏側で係止されている凸起６に押し当てて、この凸起６による両係止凸片４の係止部分を外し、図７に示す如く、端子台３を抜け止め係止体７の係止部位を中心にしてｃ方向に回動させ、続いて、同端子台３をｄ方向にスライドさせることで、前記抜け止め係止された抜け止め係止体７は係止受け開口８内で小開口部11から大開口部10へとスライド移動して同係止受け開口８から抜き外される。
【００５６】
したがって、この実施形態の照明器具においては、対の係止凸片４と係止開口２とが端子台３の片方の外側面3a側で係止され、ここでは、上記第１の実施形態におけると同様に、対の係止凸片４が端子台３の外側面3aに沿った方向で相互に拡開狭小動作して弾性変形されるものであり、基板１の解除開口５は係止開口２よりも大きく開口するもので同外側面3aに沿って形成されることになるため、大きな解除開口５から挿入される解除具30で両係止凸片４を容易に狭小動作させるよう弾性変形させることができて、両係止凸片４を外す係止解除作業はより簡単となる。
【００５７】
又、端子台３の反対側の外側面3b側では、抜け止め係止体７が基板１の係止受け開口８にスライドされて抜け止め係止されるので、前記両係止凸片４と係止開口２との係止状態にあっては、同抜け止め係止体７がスライドできず係止受け開口８からは抜け外れることがないものである。そのため、端子台３の両側での抜け止め係止体７による係止及び前記両係止凸片４による係止が、より外れ難い係止状態となって、基板１に対し同端子台３はより安定した状態で確実に取着固定される。
【００５８】
しかも、図７、８に示す如く、端子台３を係止開口２側へ向かうａ方向にスライド移動させることで、抜け止め係止体７を係止受け開口８に抜け止め係止させた後に、両係止凸片４を係止開口２に挿入係止させ、或いは、端子台３の片側のみにおいて解除具30で両係止凸片４を係止開口２から外し、その後、端子台３を前記と反対のｄ方向にスライド移動させることで、抜け止め係止体７を係止受け開口８から抜き外し、このようにして、端子台３の基板１に対する着脱作業をより簡単且つ確実に行うことができる。
【００５９】
又、この実施形態の照明器具においては、前記抜け止め係止体７が係止凸片４と同形状の対の抜け止め片９で形成されるので、同抜け止め係止体７は両係止凸片４と形状が統一されて設計容易なものとなっている。しかも、ここでは、抜け止め係止体７が係止受け開口８の大開口部10から出し入れされて、同係止受け開口８の小開口部11で強固に抜け止め係止されるものであり、この抜け止め係止状態では、小開口部11の開口縁部分に突設されるストッパー片12が両抜け止め片９相互の狭小動作を阻止するため、抜け止め係止体７は係止受け開口８から抜け外れないようより確実に係止される。
【００６０】
なお、それ以外は、上記第一の実施形態と同様に構成されており、同第一の実施形態におけると同様の作用効果が奏されるので、ここではそれ等の説明を省略する。又、照明器具全体の施工構造としても、上記図３、４のいずれの全体施工構造であってもよいものである。
【００６１】
【発明の効果】
上述の如く、本発明の請求項１記載の照明器具においては、端子台を基板に対しその表側から簡単に取着することができ、そこでの組立作業性も良好で、取着状態では、端子台が基板に対し安定して確実に取着固定されており、不用意に外れることはない。しかも、解除開口に表側から解除具を挿入し、この解除具で基板の裏側で係止されている両係止凸片を外すことができ、施工後にあっても、端子台を基板から容易に取り外すことができる。
【００６２】
又、本発明の請求項２記載の照明器具においては、特に、金属板材料で形成される基板に打ち抜きプレス加工等を施すことで、係止開口や解除開口等を簡単に形成することができ、しかも、係止凸片は端子台と一体に合成樹脂材料で形成されており、部品点数を増加させることなく係止凸片を簡単に形成することができて、同係止凸片には合成樹脂材による適切な弾性も付与される。
【００６３】
又、本発明の請求項３記載の照明器具においては、特に、凸起の傾斜面が係止開口の開口縁部分に摺接されることで、両係止凸片は係止開口に対してスムーズに挿入係止され、しかも、取着状態では、同凸起の高い部分が係止開口の開口縁部分に係止されて、両係止凸片は係止開口から抜け外れ難く、この状態であっても、解除開口から挿入される解除具で両係止凸片を容易に外すことができる。
【００６４】
又、本発明の請求項４記載の照明器具においては、特に、対の係止凸片と対の係止開口とが端子台の両側各々で係止されて、基板に対し同端子台はより安定した状態で確実に取着固定される。しかも、大きな解除開口から挿入される解除具で両係止凸片を容易に狭小動作させるよう弾性変形させることができて、両係止凸片を外す係止解除作業はより簡単となる。
【００６５】
又、本発明の請求項５記載の照明器具においては、特に、対の係止凸片と係止開口とが係止される端子台の片側では、大きな解除開口から挿入される解除具で両係止凸片を容易に狭小動作させるよう弾性変形させることができて、両係止凸片を外す係止解除作業はより簡単となる。そして、端子台の反対側では、抜け止め係止体が係止受け開口に抜け止め係止され、前記両係止凸片と係止開口との係止状態では、同抜け止め係止体が抜け外れることはなく、そのため、基板に対し端子台がより安定した状態で確実に取着固定される。しかも、端子台の片側のみで解除具を用いればよく、端子台の基板に対する着脱作業をより簡単且つ確実に行うことができる。
【００６６】
又、本発明の請求項６記載の照明器具においては、特に、前記抜け止め係止体が係止凸片と同形状の対の抜け止め片で形成され、同抜け止め係止体は両係止凸片と形状が統一されて設計容易なものとなる。しかも、抜け止め係止体が係止受け開口に抜け止め係止された状態で、ストッパー片が両抜け止め片相互の狭小動作を阻止して、抜け止め係止体は係止受け開口により確実に係止される。
【００６７】
又、本発明の請求項７記載の照明器具においては、特に、端子台が反射板で覆い隠されて外観良く保護され、埋め込み型であっても器具本体を施工個所から取り外すことなく、同反射板を取り外して端子台のメンテナンスや取替作業を簡単に行うことができ、しかも、照明ランプは反射板よりも表側で接続保持されていて、支障なく照明作用をなすもので、その交換も容易なものである。
【図面の簡単な説明】
【図１】本発明の第一の実施形態である照明器具の要部を示す分解斜視図。
【図２】同照明器具における基板の要部を示す平面図。
【図３】同照明器具の全体構造を例示する分解斜視図。
【図４】同照明器具の異なる全体構造を例示する分解斜視図。
【図５】本発明の第二の実施形態である照明器具の要部を示す分解斜視図。
【図６】同照明器具における基板の要部を示す平面図。
【図７】同照明器具における端子台の着脱状態を示す基板を断面にした側面図。
【図８】同照明器具における端子台の取着状態を示す基板を断面にした側面図。
【図９】従来例である照明器具の要部を示し、（ａ）はその分解斜視図、（ｂ）はその基板の平面図。
【図１０】別の従来例である照明器具の要部を示し、（ａ）はその分解斜視図、（ｂ）はその基板の平面図。
【符号の説明】
１器具本体
２係止開口
2a 開口縁部分
３端子台
3a 端子台の相対向する一方の外側面
3b 端子台の相対向する他方の外側面
４係止凸片
５解除開口
６凸起
７抜け止め係止体
８係止受け開口
９抜け止め片
10 大開口部
11 小開口部
12 ストッパー片
25 反射板
26 照明ランプ
Ａ器具本体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting fixture in which a terminal block is attached to a board of a fixture body from the front side, and more particularly to a mounting structure for the terminal block.
[0002]
[Prior art]
Generally, the terminal block of a lighting fixture is stored in the fixture main body. However, in the case where the lighting fixture is embedded in a state where it is embedded in the ceiling or the like, if the terminal block is stored in the fixture main body, it becomes difficult to check or replace the terminal fixture. Therefore, a lighting fixture is provided in which a terminal block is attached to the substrate of the fixture body from the front side, and a reflector is attached so as to cover the terminal block. In this case, the maintenance work of the terminal block can be performed only by removing the reflector without removing the instrument body from the construction site such as the ceiling.
[0003]
And in the lighting fixture which attaches a terminal block to the board | substrate of a fixture main body from the front side, the type which latches and attaches the terminal block 3 to the board | substrate 1 shown in FIG. 9, and the terminal shown in FIG. There is a type in which the base 3 is attached to the substrate 1 by screwing. As shown in FIG. 9, the locking-type lighting fixture includes a pair of latches in which a latching opening 2 is formed in a substrate 1 of the fixture body, and a terminal block 3 is latched at an opening edge portion of the latching opening 2. Protruding pieces 4 are provided so as to be elastically deformed so that the interval between the engaging protruding pieces 4 is narrowed, and inserted into the engaging openings 2 to be engaged with the opening edge portions of the engaging openings 2 opposite to each other. Thus, the terminal block 3 is attached to the substrate 1 from the front side.
[0004]
In this case, a protrusion 6 is formed on the outer side of the distal end portion of the both locking projections 4 so as to protrude gradually from the distal end side to the proximal end side. The opening edge portions are opposed to each other. In addition, a pair of locking projections 4 project from the terminal block 3 at the opposite outer side surfaces 3 a and 3 b of the terminal block 3, and the pair of locking projections 4 are formed on the terminal block 3. In the direction along the outer side surfaces 3a and 3b, the substrate 1 is elastically deformed by expanding and narrowing each other, and the locking opening 2 is arranged on the substrate 1 at each of the positions corresponding to the locking protrusions 4 of both pairs. Forming. In addition, a positioning projection 13, a screw mounting hole 14, and a grounding projection 15 are arranged in the middle of the back side of the terminal block 3. A through hole 16a, 16b and 16c are arranged and formed.
[0005]
On the other hand, as shown in FIG. 10, in the screw-type lighting fixture, the terminal block 3 is arranged on the front side of the substrate 1, and the screw mounting hole 14 formed on the back surface of the terminal block 3 is inserted from the back side of the substrate 1. The terminal block 3 is attached to the substrate 1 from the front side by screwing the fixing screw 31 through the through hole 16b. In this case, the terminal block 3 is positioned and fixed so as not to rotate by inserting and engaging the positioning protrusion 13 or the grounding protrusion 15 with the through holes 16a and 16c.
[0006]
However, in any of the above types of lighting fixtures, there is a problem that it is difficult to remove the terminal block 3 from the front side of the substrate 1. That is, in the locking type shown in FIG. 9, the inclined surface of the protrusion 6 is in sliding contact with the opening edge portion of the locking opening 2, so that the both locking protrusions 4 are narrowed so that the distance between them is reduced. Thus, the operation of inserting and locking the both locking convex pieces 4 into the locking openings 2 is easily performed, but conversely, the both locking convex pieces 4 are removed from the locking openings 2 and removed. If it does so, the protrusion 6 will be caught in the opening edge part of the latching opening 2, and cannot be removed easily.
[0007]
In this case, the engagement between the protrusion 6 of the locking protrusion 4 and the opening edge portion of the locking opening 2 can be set loosely to facilitate the removal. Can easily fall off the substrate 1 inadvertently. For example, after the power cable, which is external wiring, is connected to the terminal block at the time of construction, the wiring process is performed. At that time, the power cable is pulled or bent. The terminal block is easily detached due to an external force. In this case, since the terminal block is often provided with a ground terminal, detachment of the terminal block may be a serious problem.
[0008]
In the screw type shown in FIG. 10, the terminal block 3 is attached to the front side of the substrate 1, but here the fixing screw 31 is screwed from the back side of the substrate 1. The instrument body can only be embedded and installed after the terminal block 3 is attached to the substrate 1. In this case, the terminal block 3 is securely attached and fixed to the substrate 1. However, if the terminal block 3 is to be removed from the substrate 1 after construction, the fixing screw 31 is attached from the back side of the substrate 1. Therefore, it is necessary to remove the instrument body from the construction site such as the ceiling, and the replacement work of the terminal block 3 becomes extremely difficult.
[0009]
By the way, as shown in Japanese Utility Model Laid-Open No. 56-70903, Japanese Utility Model Laid-Open No. 2-42315, and the like, there is also known a lighting fixture in which a terminal block is detachably attached to a substrate of a fixture body. However, in any of these, the terminal block is attached to the substrate via another member. In the other member (the one disclosed in Japanese Utility Model Publication No. 56-70903, the spring (20), -42315 requires a holder (8)), which increases the number of members and increases the cost, complicates the structure related to the attachment of the terminal block, and makes it difficult to assemble here. Have a problem.
[0010]
[Patent Document 1]
Japanese Utility Model Publication No. 56-70903
[0011]
[Patent Document 2]
Japanese Utility Model Publication No. 2-42315
[0012]
[Problems to be solved by the invention]
The present invention was invented in order to solve the above-described problems in the prior art, and the problem was that the terminal block was easily and securely attached to the substrate of the instrument body, and the terminal block was removed after construction. It is to provide a lighting device that can be easily replaced.
[0013]
[Means for Solving the Problems]
According to a first aspect of the present invention, a lighting opening is formed in the substrate of the lighting device body, and a pair of locking protrusions that are locked to the opening edge portion of the locking opening are provided on the terminal block. Then, the terminal blocks are fixed to the board by elastically deforming both locking projections so that the distance between them is narrowed, inserting the locking projections into the locking openings, and locking each of the locking protrusions to opposite opening edge portions of the locking openings. It is a lighting fixture that is detachably attached from the front side, and is formed with a release opening for inserting a release tool that opens continuously to the locking opening at a position where the terminal block of the board does not cover. is there.
[0014]
Therefore, in this case, both the locking projections are elastically deformed so that the interval between them is narrowed and inserted into the locking opening, and each of the locking protruding pieces is engaged with the opening edge portions of the locking opening facing each other. By stopping, the terminal block can be easily attached to the substrate from the front side, and the assembly workability is improved. In the attached state, both the locking protrusions are locked by the elastic restoring force to the opening edge portions of the locking opening facing each other, so that the terminal block is stably and securely attached to the board. The terminal block does not come off carelessly during and after construction.
[0015]
Here, since the release opening for inserting the release tool is formed in the substrate, even after construction, the tip portion is inserted into the release opening from the front side using a tool such as a screwdriver or nipper as the release tool. Both the locking convex pieces locked to the opening edge portions of the locking openings facing each other on the back side of the substrate can be removed by the release tool. In addition, since the release opening is continuously open to the latch opening and is formed at a position that does not cover the terminal block of the board, the opening of the release opening is used when removing the latch protrusions with the release tool. The edge and terminal block do not get in the way, so the terminal block can be easily removed from the board, and the terminal block can be replaced easily from the front side of the board without removing the instrument body from the construction site. It will be a thing.
[0016]
The lighting fixture according to claim 2 of the present invention is the lighting fixture according to claim 1, wherein the substrate is formed of a metal plate material, and the locking convex piece is formed of a synthetic resin material integrally with the terminal block. It is what.
[0017]
Therefore, especially in this case, since the substrate is formed of a metal plate material, the locking opening, the release opening, etc. can be easily formed by punching the substrate, etc. Since the convex piece is made of a synthetic resin material integrally with the terminal block, the locking convex piece can be easily formed without increasing the number of parts. Elasticity is also imparted.
[0018]
The lighting fixture according to claim 3 of the present invention is the lighting fixture according to claim 1 or 2, wherein the lighting fixture is inclined so as to gradually increase from the distal end side to the proximal end side on the outer side of the distal end portion of both locking projections. Protruding protrusions are formed, and both the protrusions are respectively locked to the opening edge portions of the locking openings facing each other.
[0019]
Therefore, particularly in this case, when the both locking convex pieces are inserted and locked into the locking openings, the protruding inclined surfaces are in sliding contact with the opening edge portions of the locking openings, so that both the locking convex pieces are mutually engaged. It is elastically deformed by a narrowing operation so that the interval is narrowed, whereby both locking convex pieces can be smoothly inserted and locked with respect to the locking opening. In addition, in the attached state, the high protruding portion is locked to the opening edge portion of the locking opening, and both locking protruding pieces are difficult to come off from the locking opening. Both the locking convex pieces can be easily removed by pressing the release tool inserted from the opening against the protrusions locked to the opening edge portion of the locking opening.
[0020]
The lighting fixture according to claim 4 of the present invention is the lighting fixture according to any one of claims 1 to 3, wherein a pair of locking projections is provided at each of the opposed outer surface portions of the terminal block. The pair of locking projections protrudes backward from the base, and the pair of locking projections are elastically deformed by expanding and narrowing each other in the direction along the outer surface of the terminal block. A locking opening is formed in the substrate at each of the corresponding positions, and a release opening that is larger than each locking opening is formed continuously with the opposite outer opening edge portions of the locking openings. It is characterized by.
[0021]
Therefore, in this case, in particular, the pair of locking projections and the pair of locking openings are locked on both sides of the terminal block, so that the terminal block can be reliably and stably maintained with respect to the board. It is fixed. Moreover, the pair of locking projections are elastically deformed by expanding and narrowing each other in the direction along the outer surface of the terminal block, and the release opening of the board opens larger than the locking opening. Since it is formed along the outer side surface, it can be elastically deformed so that both locking convex pieces can be easily narrowed with a release tool inserted from a large release opening. The unlocking operation for removing becomes easier.
[0022]
The luminaire according to claim 5 of the present invention is the luminaire according to any one of claims 1 to 3, wherein the pair of protruding protrusions on the one outer side surface portion of the terminal block are located behind the terminal block. The pair of locking projections are elastically deformed by expanding and narrowing each other in the direction along the outer surface of the terminal block, and correspond to the pair of locking projections. In the position, a locking opening is formed in the substrate, a release opening that is larger than the locking opening is formed continuously with the opening edge portion outside the locking opening, and the one outer surface portion of the terminal block is formed. On the opposite side, a locking stopper is projected from the back of the terminal block, and the terminal block is slid in the direction toward the locking opening on the circuit board so that the locking stopper is locked. The latch receiving opening to be formed is formed.
[0023]
Therefore, in this case, in particular, the pair of locking convex pieces and the locking opening are locked on one side of the terminal block, and here, the pair of locking convex pieces are mutually connected in the direction along the outer surface of the terminal block. It is elastically deformed by expanding and narrowing, and the release opening of the substrate opens larger than the locking opening and is formed along the outer side surface, so that it is inserted from the large release opening. The unlocking tool can be elastically deformed so that the both locking projections can be easily narrowed, and the unlocking operation for removing both locking projections becomes easier.
[0024]
Also, on the opposite side of the terminal block, the retaining latch is slid into the latch receiving opening of the substrate to be retained so that the both locking projections and the locking opening are in the locked state. In this case, the same locking stopper cannot slide and does not come off the locking receiving opening. Therefore, the locking by the locking stoppers on both sides of the terminal block and the locking by the both locking projections are more difficult to remove, and the terminal block is securely attached to the board in a more stable state. It is fixed.
[0025]
In addition, by sliding the terminal block in the direction toward the locking opening, the locking stopper is locked in the locking receiving opening, and then both locking protrusions are inserted into the locking opening. Stop or remove the locking protrusions from the locking opening with the release tool on only one side of the terminal block, and then slide the terminal block in the opposite direction to lock the locking stopper The terminal block can be removed from the receiving opening and thus the terminal block can be attached and detached from the board more easily and reliably.
[0026]
The lighting fixture according to claim 6 of the present invention is the lighting fixture according to claim 5, wherein the retaining stopper is formed of a pair of retaining pieces having the same shape as the retaining convex piece, and is formed in the retaining receiving opening. Is provided with a large opening through which the retaining stopper is put in and out and a small opening where the retaining stopper is retained, and both retaining pieces are provided at the opening edge of the small opening. A stopper piece for preventing the two from narrowing each other is provided.
[0027]
Therefore, in this case, in particular, the retaining stopper is formed of a pair of retaining pieces having the same shape as the retaining convex piece, so that the retaining stopper body is unified in shape with both retaining convex pieces. And easy to design. In addition, here, the retaining latch is inserted into and removed from the large opening of the latch receiving opening, and is retained by the small opening of the latch receiving opening. The stopper piece protruding from the opening edge portion of the small opening portion prevents the narrowing movement between the two retaining pieces, so that the retaining member is more securely locked so as not to come off from the latch receiving opening. The
[0028]
The lighting fixture according to claim 7 of the present invention is the lighting fixture according to any one of claims 1 to 6, wherein the reflection plate can be removed so as to cover the terminal block on the front side of the substrate. In addition, the illumination lamp is connected and held to the instrument body on the front side of the reflector.
[0029]
Therefore, especially in this case, the terminal block attached to the front side of the substrate is covered with a reflector and protected with a good appearance, and even if it is an embedded type constructed in a state embedded in the ceiling or the like, Without removing the instrument body from the construction site, the reflector can be removed for easy maintenance and replacement of the terminal block. Further, the illumination lamp is connected and held on the front side of the reflecting plate, and performs an illumination operation without any trouble, and can be easily replaced.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show a lighting apparatus according to a first embodiment corresponding to claims 1 to 4 and 7 of the present invention. In the lighting fixture of this embodiment, a locking opening 2 is formed in the substrate 1 of the fixture main body A, and a pair of locking convex pieces 4 which are locked to the opening edge portion 2a of the locking opening 2 in the terminal block 3. Is a projecting project. Then, both the locking projections 4 are elastically deformed so that the distance between them is narrowed, inserted into the locking opening 2 and locked to the opposite opening edge portions 2a of the locking opening 2, respectively. 3 is detachably attached to the substrate 1 from the front side. In this case, the release opening 5 for inserting the release tool that opens continuously to the locking opening 2 is formed at a position where the terminal block 3 of the substrate 1 does not cover.
[0031]
Moreover, in the lighting fixture of this embodiment, the board | substrate 1 is formed with a metal plate material, and the latching convex piece 4 is integrally formed with the terminal block 3 with the synthetic resin material. In addition, in this case, a protrusion 6 is formed on the outer side of the distal end portion of the both locking projections 4 so as to protrude gradually from the distal end side to the proximal end side. The two opening edge portions 2a are opposed to each other.
[0032]
Further, a pair of locking projections 4 are provided behind the terminal block 3 at each of the opposing outer side surfaces 3a and 3b of the terminal block 3, and the pair of locking projections 4 are connected to the terminal block 3 in the same manner. It is assumed that they are elastically deformed by expanding and narrowing each other in the direction along the outer surfaces 3a and 3b. Then, a locking opening 2 is formed in the substrate 1 at each of the positions corresponding to the two pairs of locking projections 4, and each of the locking openings 2 is continuously connected to the opposite opening edge portions of the locking openings 2. A release opening 5 that is larger than the stop opening 2 is formed.
[0033]
Hereinafter, the lighting fixture of this embodiment is demonstrated more concretely. The terminal block 3 has an outer shell formed of a synthetic resin material in a hollow substantially rectangular parallelepiped shape, and a plurality of terminal holes (not shown) such as a power supply terminal and a ground terminal are disposed on the surface side thereof. A power cable 19 (described later), which is an external wiring, is connected to a terminal hole that becomes a power terminal. A pair of locking convex pieces 4 are integrally projected on the outer side surfaces 3a and 3b on opposite sides of the terminal block 3, respectively. There are a total of two pairs of locking projections 4 on both sides of the terminal block 3, and each locking projection piece 4 has a tip portion from each outer surface 3 a, 3 b to the back of the back of the terminal block 3. It protrudes so as to protrude.
[0034]
The paired locking projections 4 are made of a synthetic resin material and have an appropriate elasticity, and are elastically deformed by expanding and narrowing so that the distance between them increases or decreases. The direction in which the expanding and narrowing operation is performed is the direction along the outer side surfaces 3a and 3b of the terminal block 3. In addition, the distal end portion of both locking projections 4 projecting backward from the back surface of the terminal block 3 has a substantially one-sided arrowhead triangle inclined outwardly from the distal end side to the proximal end side. A protruding shape 6 is formed to protrude.
[0035]
The protrusion 6 is configured such that when the locking protrusion 4 is inserted into the locking opening 2 of the substrate 1 to be described later, the inclined outer surface is brought into sliding contact with the opening edge portion 2 a of the locking opening 2. is there. In the state where the locking convex piece 4 is locked in the locking opening 2, the end edge portion of the protruding protrusion 6 on the side protruding high is locked to the opening edge portion 2 a of the locking opening 2. It is. At that time, both the locking projections 4 are restored so as to expand from the state narrowed by the elasticity, and the projection 6 is detached from the opening edge portion 2a of the locking opening 2 in a stable state by this elastic restoring force. It is locked so that there is no. In this case, if the outer surface other than the protrusion 6 of the locking projection 4 is elastically brought into contact with the opening edge portion 2a of the locking opening 2, a more stable locking state is obtained, but it is not necessarily in contact. It is not something that must be done.
[0036]
Further, in the middle of the back side of the terminal block 3, a positioning projection 13, a screw mounting hole 14, and a grounding projection 15 are arranged in this order along the outer side surfaces 3a and 3b. Yes. This structure exists because the terminal block 3 shown in FIG. 9 is used as it is as the conventional technique, and the lighting projection of the present invention does not require the positioning protrusion 13 and the screw mounting hole 14. It becomes. However, with respect to the screw mounting hole 14, when it is a construction site where the terminal block 3 is not removed, the fixing screw 31 is screwed into the screw mounting hole 14 as described above with reference to FIG. The terminal block 3 may be attached and fixed. The positioning protrusions 13 may be used with the positioning protrusions 13 remaining if the terminal block 3 is to be positioned more reliably.
[0037]
The substrate 1 constitutes a flat portion in the middle of the instrument body A described later, and is formed of a metal plate material such as a steel plate. The substrate 1 is formed with a substantially rectangular locking opening 2 for inserting and locking the two pairs of locking projections 4 of the terminal block 3 in each pair. A substantially rectangular release opening 5 which is continuous and larger than the locking opening 2 is formed in the opposite outer opening edge portions of the both locking openings 2. Therefore, the entire opening in which the locking opening 2 and the release opening 5 are continuous has a symmetrical shape on both sides in the middle of the substrate 1.
[0038]
In this case, the opening edge portion on one side adjacent to both opening edge portions 2a to which the locking convex piece 4 of the locking opening 2 is locked is opened to communicate with the release opening 5 over the entire length of the side. The release opening 5 is formed so as to have a width dimension larger than the width dimension between both opening edge portions 2a of the locking opening 2. The locking opening 2 and the release opening 5 are formed simultaneously as a series of openings by punching the substrate 1 or the like.
[0039]
In the middle of the substrate 1, between the locking openings 2 and the release openings 5 on both sides, a through hole 16a is formed at a position corresponding to the positioning projection 13, screw mounting hole 14, and grounding projection 15 of the terminal block 3. , 16b, 16c are arranged and formed. When the terminal block 3 is attached to the substrate 1, the positioning projection 13 and the grounding projection 15 are inserted and engaged with the through holes 16a and 16c so that the terminal block 3 is rotated. Positioned not to. Note that this structure is also because the terminal block 3 shown in FIG. 9 is used as it is as the conventional technique, and is not necessary in the lighting fixture of the present invention.
[0040]
By the way, the whole lighting fixture of this embodiment is constructed as a structure as shown in FIG. 3, for example. In this case, a substantially rectangular mounting opening 17 is formed in the ceiling B, and the instrument body A is constructed so as to be embedded in the mounting opening 17. A mounting bolt 18 for hanging is suspended in the mounting opening 17, and a power cable 19, which is an external wiring, is led out from the mounting opening 17. Is connected to the terminal block 3 through the substrate 1.
[0041]
The instrument main body A has a substantially rectangular box shape that opens downward, and a pair of sockets 20 are disposed on the inner surfaces of the opposite sides in the longitudinal direction. A ballast 21 is installed and fixed, and the terminal block 3 connected to the ballast 21 is also attached to the lower surface of the substrate 1. Then, the instrument body A is constructed by being fitted into the mounting opening 17 from below, and at that time, the mounting bolt 18 is inserted into the mounting hole 22 formed in the substrate 1 of the instrument body A, and this A mounting nut 23 is screwed onto the mounting bolt 18. By tightening the mounting nut 23 against the lower surface of the substrate 1 via a washer 24, the instrument main body A is embedded in the ceiling B and is suspended and fixed. The
[0042]
Further, here, the reflector 25 is detachably attached to the front side of the substrate 1 so as to cover the terminal block 3, and the illumination lamp 26 is connected and held to the instrument body A on the front side of the reflector 25. Yes. In this case, the reflection plate 25 is formed in a long plate shape bent in a substantially V-shaped cross section, and is fixed to the middle portion of the substrate 1 by screwing or the like along the longitudinal direction thereof. Electric parts such as the base 3 and the ballast 21 and the screwed portion between the mounting bolt 18 and the mounting nut 23 are covered. On both sides of the reflecting plate 25, an illumination lamp 26, which is a straight tube type fluorescent lamp, is mounted by being held connected to the socket 20 provided in the instrument body A.
[0043]
Moreover, the whole lighting fixture of this embodiment may be constructed as a structure as shown in FIG. In this case, the instrument main body A is formed of a rectangular flat substrate 1, and a plurality of pairs of attachment pieces 27 project from both sides thereof. The reflecting plate 25 is formed in a substantially rectangular box shape that opens downward, and a portion bent in a substantially V-shaped cross section is formed in the middle of the bottom plate portion. The reflecting plate 25 is folded in a substantially V-shaped cross section. In the bent portion, the electrical parts such as the terminal block 3 and the ballast 21 and the screwed portion between the mounting bolt 18 and the mounting nut 23 are obscured, and the reflector 25 is provided in the mounting opening 17 of the ceiling B. It is fitted from below and fixed to the instrument body A.
[0044]
At that time, sockets 20 suspended in pairs at both ends in the longitudinal direction of the substrate 1 serving as the instrument body A pass through the reflector 25 and project below it. In this state, the reflector 25 Is fixedly attached to each attachment piece 27 of the instrument main body A with a knob screw 28. Then, the illumination lamps 26 are mounted and connected to the respective pairs of sockets 20 protruding below the reflecting plate 25. The other structure is the same as that shown in FIG. 3, and the description thereof is omitted here.
[0045]
Therefore, in the lighting fixture of this embodiment, after both the latching convex pieces 4 are elastically deformed so that the interval between them is narrowed and inserted into the latching opening 2, each of the latching convex pieces 4 is elastically restored. The terminal block 3 can be easily attached to the board 1 from the front side by engaging with the opposite opening edge portions 2a of the locking opening 2 by force, and the assembly workability thereof is good. Become. Then, both the locking protrusions 4 are expanded by the elastic restoring force and locked to the opening edge portions 2a opposite to each other of the locking opening 2, so that the terminal block 3 is attached in the attached state. The terminal block 3 will not be inadvertently removed even when the wiring is performed at the time of construction or after the installation of the instrument body A is securely fixed to the substrate 1 in a stable state. .
[0046]
In this case, since the release opening 5 for inserting the release tool is formed in the substrate 1, even after construction, the tip portion is inserted into the release opening 5 from the front side using a tool such as a screwdriver or nipper as the release tool. Then, with this release tool, the respective locking portions of both locking convex pieces 4 locked to the opening edge portions 2a opposite to each other on the locking opening 2 on the back side of the substrate 1 can be removed. In addition, since the release opening 5 is continuously open to the latch opening 2 and is formed at a position where the terminal block 3 of the substrate 1 does not cover, the work of removing both the latch convex pieces 4 with the release tool is performed. During the operation, the rim portion of the release opening 5 and the terminal block 3 do not get in the way. Therefore, the terminal block 3 can be easily removed from the substrate 1 and the replacement work for replacing the terminal block 3 is also possible. It can be easily performed from the front side of the substrate 1 without removing the instrument body A from the construction site.
[0047]
Further, in the lighting apparatus of this embodiment, since the substrate 1 is formed of a metal plate material such as a steel plate, the openings such as the locking opening 2 and the release opening 5 are formed by punching and pressing the substrate 1. Can be easily formed. In addition, since the both locking projections 4 are formed of a synthetic resin material integrally with the terminal block 3, the both locking projections 4 can be easily formed without increasing the number of parts. The convex piece 4 is also given appropriate elasticity by a synthetic resin material.
[0048]
Further, in the lighting fixture of this embodiment, when the both locking projections 4 are inserted and locked into the locking openings 2, the inclined outer surfaces of the protrusions 6 on both sides are opposite to each other of the locking openings 2. By making sliding contact with the opening edge portion 2a, both the locking convex pieces 4 are elastically deformed by narrowing so that the distance between them is narrowed. Can be inserted and locked. Further, in the attached state, the high portion of each protrusion 6 is locked to the opening edge portion 2a of the locking opening 2, and the both locking protruding pieces 4 are difficult to come off from the locking opening 2. Even in the fixed attachment state, the release tool inserted from the release opening 5 is pressed against each protrusion 6 locked to the opening edge portion of the lock opening 2 so that both the locking convex pieces 4 can be easily formed. Can be removed.
[0049]
Furthermore, in this case, since the pair of locking projections 4 and the pair of locking openings 2 are locked on both sides of the terminal block 3, the terminal block 3 is more stable with respect to the substrate 1. It is securely attached and fixed in the state. In addition, the pair of locking projections 4 are elastically deformed by expanding and narrowing each other in the direction along the outer surfaces 3a and 3b of the terminal block 3, and the release opening 5 of the substrate 1 is locked. Since the opening is larger than 2 and is formed along the outer side surfaces 3a and 3b, it is elastic so that both the locking convex pieces 4 can be easily narrowed by a release tool inserted from the large release opening 5. It can be deformed, and the unlocking operation for removing both the locking convex pieces 4 becomes easier.
[0050]
Further, in the lighting apparatus of this embodiment, the terminal block 3 and the ballast 21 attached to the front side of the substrate 1 are covered with the reflecting plate 25 and protected with good appearance, and the ceiling Even if it is an embedded type installed in the state of being embedded in B, it is possible to easily perform maintenance and replacement work of the terminal block 3 by removing the reflector 25 without removing the tool body A from the construction site. It can be done. In addition, the illumination lamp 26 is connected and held on the front side of the reflector 25, and performs an illumination operation without hindrance and can be easily replaced.
[0051]
5-8 has shown the lighting fixture which is 2nd embodiment corresponding to Claims 1-3, 5-7 of this invention. In the lighting fixture of this embodiment, as shown in FIGS. 5 and 6, a pair of locking projections 4 protrudes from the terminal block 3 at the outer side surface 3 a of the terminal block 3, and the locking of the pair is performed. The convex piece 4 is not elastically deformed by expanding and contracting each other in the direction along the outer surface 3a of the terminal block 3, and is located on the substrate 1 at a position corresponding to the pair of locking convex pieces 4. A locking opening 2 is formed, and a release opening 5 is formed which is continuous with an opening edge portion outside the locking opening 2 and opens larger than the locking opening 2.
[0052]
Then, on the outer surface 3b opposite to the one outer surface 3a portion of the terminal block 3, a retaining locking body 7 protrudes behind the terminal block 3, and the terminal block 3 is locked on the substrate 1. A locking receiving opening 8 is formed in which the retaining stopper 7 is prevented from coming off by sliding in the direction α toward the opening 2 side. Here, the retaining stopper 7 is formed of a pair of retaining pieces 9 having the same shape as the retaining convex piece 4, and a large opening portion through which the retaining stopper 7 is put in and out of the latch receiving opening 8. 10 and a small opening 12 on which the same locking stopper 7 is locked to prevent the locking stoppers 7 from moving toward each other at the opening edge portion of the small opening 12. A stopper piece 12 for blocking is also provided.
[0053]
In this case, the large opening portion 10 and the small opening portion 11 that become the latch receiving opening 8 are both substantially rectangular and open to communicate with each other, and communicate with the large opening portion 10 of the small opening portion 11. A substantially rectangular plate-like stopper piece 12 is integrally extended at the middle position of the opening edge portion on the opposite side to the side to be closed. Therefore, as shown in FIG. 6, on the small opening 11 side of the latch receiving opening 8, slits 29 that open to the large opening 10 are formed on both sides of the stopper piece 12. Both retaining pieces 9 can be slid and locked in the α direction to be retained.
[0054]
Here, the attachment / detachment operation | movement of the terminal block 3 in the lighting fixture of this embodiment is demonstrated based on FIG. FIG. 7 shows a state where the terminal block 3 is being attached to and detached from the substrate 1, and FIG. 8 shows a state where the terminal block 3 is attached and fixed to the substrate 1. When the terminal block 3 is attached to the substrate 1, as shown in FIG. 7, first, the retaining latch 7 is inserted into the latch receiving opening 8 at the position of the large opening 10 to place the terminal block 3 in the direction a. Slide. As a result, the retaining latching body 7 slides from the large opening 10 to the small opening 11 in the latch receiving opening 8, and the protrusion 6 is latched at the edge of the small opening 11. At the same time, the narrowing operation between the two retaining pieces 9 is blocked by the stopper piece 12, and the retaining stopper 7 is locked to the locking receiving opening 8 so as not to come off.
[0055]
In a state where the retaining latch 7 is retained and latched in the latch receiving opening 8, the terminal block 3 is rotated in the b direction around the latching portion, whereby both latching convex pieces 4 are formed. As shown in FIG. 8, the terminal block 3 is fixedly attached to the substrate 1 by being inserted and locked in the locking opening 2. Conversely, when the terminal block 3 is removed from the substrate 1, a tip such as a screwdriver or nipper is inserted into the release opening 5 from the front side of the substrate 1 as a release tool 30, and the release tool 30 is locked. Pressing against the protrusions 6 that are locked on the back side of the opening 2, the locking portions of the locking protrusions 4 by the protrusions 6 are removed, and the terminal block 3 is prevented from coming off as shown in FIG. By rotating the terminal block 3 in the c direction around the locking portion of the body 7 and then sliding the terminal block 3 in the d direction, the retaining latch body 7 that is retained and retained is retained by the latch receiver. In the opening 8, it slides from the small opening 11 to the large opening 10 and is removed from the locking receiving opening 8.
[0056]
Therefore, in the lighting fixture of this embodiment, the pair of locking projections 4 and the locking openings 2 are locked on the one outer surface 3a side of the terminal block 3, and here, in the first embodiment described above. Similarly, the pair of locking projections 4 are elastically deformed by expanding and narrowing each other in the direction along the outer surface 3a of the terminal block 3, and the release opening 5 of the substrate 1 is the locking opening. Since the opening is larger than 2 and is formed along the outer side surface 3a, it is elastically deformed so that the locking projections 4 can be easily narrowed by the release tool 30 inserted from the large release opening 5. Therefore, the unlocking operation for removing both the locking protrusions 4 becomes easier.
[0057]
In addition, on the outer surface 3b side opposite to the terminal block 3, the retaining latch 7 is slid into the latch receiving opening 8 of the substrate 1 to be retained so that the both locking convex pieces 4 and In the locked state with the locking opening 2, the same locking stopper 7 cannot slide and cannot be detached from the locking receiving opening 8. Therefore, the locking by the retaining locking body 7 on both sides of the terminal block 3 and the locking by the both locking convex pieces 4 are in a locked state that is more difficult to be removed, and the terminal block 3 is attached to the substrate 1. It is securely attached and fixed in a more stable state.
[0058]
In addition, as shown in FIGS. 7 and 8, after the terminal block 3 is slid in the direction a toward the locking opening 2, the locking stopper 7 is locked to the locking receiving opening 8. Both locking projections 4 are inserted into and locked in the locking openings 2, or both locking projections 4 are removed from the locking openings 2 with the release tool 30 only on one side of the terminal block 3, and then the terminal block 3. Is moved in the direction d opposite to that described above to remove the retaining latch 7 from the latch receiving opening 8, and thus the terminal block 3 can be attached to and detached from the substrate 1 more easily and reliably. It can be carried out.
[0059]
Further, in the lighting fixture of this embodiment, the retaining stopper 7 is formed of a pair of retaining pieces 9 having the same shape as the retaining convex piece 4, so It is easy to design because the shape of the convex piece 4 is unified. In addition, here, the retaining stopper 7 is inserted into and removed from the large opening 10 of the latch receiving opening 8 and is firmly retained and latched by the small opening 11 of the latch receiving opening 8. In this retaining lock state, the stopper piece 12 projecting from the opening edge portion of the small opening portion 11 prevents the narrowing movement of the retaining pieces 9 from each other. It is more securely locked so as not to come off the opening 8.
[0060]
The rest of the configuration is the same as that of the first embodiment, and the same effects as those of the first embodiment are achieved. Therefore, the description thereof is omitted here. Moreover, as the construction structure of the entire lighting fixture, any construction construction shown in FIGS.
[0061]
【The invention's effect】
As described above, in the luminaire according to claim 1 of the present invention, the terminal block can be easily attached to the substrate from the front side, and the assembly workability thereof is also good. The base is fixed and securely fixed to the substrate, so that it does not come off carelessly. Moreover, it is possible to insert the release tool from the front side into the release opening and remove both locking projections locked on the back side of the board with this release tool, so that the terminal block can be easily removed from the board even after construction. Can be removed.
[0062]
Further, in the lighting apparatus according to claim 2 of the present invention, in particular, the locking opening and the release opening can be easily formed by punching the substrate formed of the metal plate material. Moreover, the locking convex piece is formed of a synthetic resin material integrally with the terminal block, and the locking convex piece can be easily formed without increasing the number of parts. Appropriate elasticity is also imparted by the synthetic resin material.
[0063]
Moreover, in the lighting fixture according to claim 3 of the present invention, in particular, the protruding inclined surface is brought into sliding contact with the opening edge portion of the locking opening, so that both the locking convex pieces are in contact with the locking opening. Smoothly inserted and locked, and in the attached state, the high protruding portion is locked to the opening edge of the locking opening, and both locking protruding pieces are difficult to come off from the locking opening. Even so, both locking projections can be easily removed with a release tool inserted from the release opening.
[0064]
In the lighting fixture according to claim 4 of the present invention, in particular, the pair of locking projections and the pair of locking openings are locked on both sides of the terminal block, and the terminal block is more It is securely attached and fixed in a stable state. In addition, both the locking convex pieces can be elastically deformed so as to be easily narrowed with a release tool inserted from a large release opening, and the unlocking operation for removing both the locking convex pieces becomes easier.
[0065]
In the lighting fixture according to claim 5 of the present invention, in particular, on one side of the terminal block where the pair of locking convex pieces and the locking openings are locked, both the release tools inserted from the large release openings are used. The latching convex pieces can be elastically deformed so as to be narrowed easily, and the unlocking operation for removing both latching convex pieces becomes easier. And, on the opposite side of the terminal block, the retaining latch is latched to the latch receiving opening, and in the latched state between the both locking projections and the latch opening, the retaining latch is Therefore, the terminal block is securely attached and fixed to the board in a more stable state. In addition, it is only necessary to use the release tool on only one side of the terminal block, and the attaching / detaching operation of the terminal block to the substrate can be performed more easily and reliably.
[0066]
Further, in the lighting fixture according to claim 6 of the present invention, in particular, the retaining stopper is formed of a pair of retaining pieces having the same shape as the locking convex pieces, and the retaining stoppers are both coupled. It becomes easy to design because the shape is uniform with the convex piece. In addition, the stopper piece prevents the two stopper pieces from narrowing each other while the stopper stopper is locked to the stopper receiving opening, and the stopper stopper is surely secured by the stopper receiving opening. It is locked to.
[0067]
Further, in the lighting fixture according to claim 7 of the present invention, in particular, the terminal block is covered with a reflecting plate to protect it with good appearance, and even if it is an embedded type, the reflection can be performed without removing the fixture body from the construction site. The maintenance and replacement work of the terminal block can be easily performed by removing the board, and the illumination lamp is connected and held on the front side of the reflector, so that it does not hinder the lighting and can be easily replaced. Is something.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a main part of a lighting fixture according to a first embodiment of the present invention.
FIG. 2 is a plan view showing a main part of a substrate in the lighting apparatus.
FIG. 3 is an exploded perspective view illustrating the overall structure of the lighting fixture.
FIG. 4 is an exploded perspective view illustrating a different overall structure of the luminaire.
FIG. 5 is an exploded perspective view showing a main part of a lighting fixture according to a second embodiment of the present invention.
FIG. 6 is a plan view showing a main part of a substrate in the lighting apparatus.
FIG. 7 is a side view of a cross-section of a substrate showing a terminal block attachment / detachment state in the lighting apparatus.
FIG. 8 is a side view of a cross-section of a substrate showing an attached state of a terminal block in the same lighting fixture.
FIGS. 9A and 9B show a main part of a conventional lighting apparatus, where FIG. 9A is an exploded perspective view and FIG. 9B is a plan view of the substrate;
FIGS. 10A and 10B show a main part of another conventional lighting apparatus, where FIG. 10A is an exploded perspective view and FIG. 10B is a plan view of the substrate;
[Explanation of symbols]
1 Instrument body
2 Locking opening
2a Open edge
3 Terminal block
3a One outer surface of the terminal block facing each other
3b Opposite outer surface of the terminal block
4 Locking convex piece
5 Release opening
6 Protrusion
7 Retaining stopper
8 Lock receiving opening
9 Retaining piece
10 Large opening
11 Small opening
12 Stopper piece
25 Reflector
26 Lighting lamp
A Instrument body

Claims

A locking opening is formed in the substrate of the instrument body, and a pair of locking projections are provided on the terminal block to be locked to the opening edge portion of the locking opening, and the locking projections are spaced apart from each other. An illumination that is elastically deformed so as to be narrowed and inserted into a locking opening and locked to opposite opening edge portions of the locking opening so that the terminal block is detachably attached to the board from the front side. A lighting fixture, wherein a release opening for inserting a release tool that opens continuously to a locking opening is formed at a position where the terminal block of the substrate does not cover.

2. The lighting apparatus according to claim 1, wherein the substrate is formed of a metal plate material, and the locking projection is formed of a synthetic resin material integrally with the terminal block.

Protrusions that incline and protrude so as to gradually increase from the distal end side to the proximal end side are formed on the outer side of the distal end portions of the both locking projections, and these both projections are formed at the opening edge portions of the locking openings facing each other. The lighting apparatus according to claim 1, wherein each of the lighting apparatuses is locked.

A pair of locking projections protrudes behind the terminal block at each of the opposing outer surface portions of the terminal block, and the pair of locking protruding pieces expands in the direction along the outer surface of the terminal block. It is not to be elastically deformed by opening and closing operation, and a locking opening is formed in the substrate at each position corresponding to both pairs of locking projections, and on the opposite opening edge portion of both locking openings The lighting fixture according to any one of claims 1 to 3, wherein a release opening that is continuous and opens larger than each locking opening is formed.

A pair of locking projections protrudes from the terminal block on the outer side of the terminal block, and the pair of locking projections expands and narrows in the direction along the outer surface of the terminal block. In this way, the board is formed with a locking opening at a position corresponding to the pair of locking protrusions, and the locking opening is formed continuously with the outer edge of the locking opening. A release opening that is larger than the terminal block is formed, and a locking stopper is protruded behind the terminal block on the opposite side of the one outer surface portion of the terminal block. The lighting fixture according to any one of claims 1 to 3, wherein a locking receiving opening is formed in which the locking stopper is prevented from slipping by being slid in a moving direction.

The locking stopper is formed of a pair of locking pieces having the same shape as the locking convex piece, and the locking stopper opening comes out of the large opening where the locking stopper is inserted and removed. A small opening to be locked and locked is provided, and a stopper piece is provided at the opening edge portion of the small opening so as to prevent the two retaining pieces from narrowing each other. Item 6. A lighting apparatus according to Item 5.

The reflector is attached so as to be removable so as to cover the terminal block on the front side of the substrate, and the illumination lamp is connected and held to the instrument body on the front side of the reflector. The lighting fixture as described in any one.