JP4018792B2

JP4018792B2 - lighting equipment

Info

Publication number: JP4018792B2
Application number: JP4788198A
Authority: JP
Inventors: 博士竹村; 豊大西
Original assignee: NEC Lighting Ltd
Current assignee: Hotalux Ltd
Priority date: 1998-02-27
Filing date: 1998-02-27
Publication date: 2007-12-05
Anticipated expiration: 2018-02-27
Also published as: JPH11250722A

Description

【０００１】
【発明の属する技術分野】
本発明は照明器具に関し、詳しくは、直管形蛍光ランプ用の天井直付型照明器具において、器具本体に対する反射板の取り付け構造に関する。
【０００２】
【従来の技術】
直管形蛍光ランプ用の天井直付型照明器具は、例えば、天井に取り付けられた器具本体と、その器具本体の両端に配設されたソケット取付具及びそのソケット取付具に装着されたソケットと、その器具本体を覆うように器具本体に取り付けられたＶ形の反射板とで構成されている。
【０００３】
この反射板の器具本体への取り付けは、図示しないが、化粧ビスを反射板に穿設された貫通孔に挿通して、器具本体に設けられたねじ孔に螺着することにより行われる。
【０００４】
【発明が解決しようとする課題】
ところで、前述した化粧ビスを利用した反射板の取り付け構造では、化粧ビスを回転操作しなければならず、しかも、この回転操作は、室内などの高い天井において器具本体へ反射板を位置合わせして押さえ付けながら行わなければならないために困難性を伴う。この化粧ビスの取り付け時に手元が狂えば、化粧ビスを取り落とすこともあり、作業性が非常に悪く、取り付け工数がかかる。また、化粧ビスとはいえ、反射板の取り付け面から突出した形態となっているので外観も良好なものではなかった。
【０００５】
そこで、これらの問題点を考慮した他の反射板の取り付け構造としては、図１３（ａ）（ｂ）に示すように器具本体４１に設けられた受け部材４２に対して反射板４３から係止部材４４を挿入することにより、器具本体４１に反射板４３を固定するものである。
【０００６】
具体的には、器具本体４１に設けられた受け部材４２の頂部には、器具本体４１の幅方向に沿う長孔４５を形成され、一方、係止部材４４として、つまみ部４６から一体的に延びる軸部４７の先端に引掛け部４８を一連に形成したものを使用する。つまみ部４６は、後述するように作業者が回転操作しやすいように窪み４９を両側に設けることにより、手でつまむことを容易にしている。
【０００７】
尚、反射板４３における受け部材４２の対向部位には、前述の係止部材４４のつまみ部４６が嵌まり込む凹み部５０が形成され、その凹み部５０の中央部位には長孔５１が穿設されている。
【０００８】
この反射板４３の取り付け構造では、天井に取り付けられた器具本体４１に対して反射板４３を位置合わせした後、その反射板４３の凹み部５０に穿設された長孔５１に係止部材４４を挿入する。この時、係止部材４４の軸部４７の先端にある引掛け部４８が器具本体４１の受け部材４２の長孔４５に挿入された状態となる。
【０００９】
この状態から、係止部材４４をそのつまみ部４６の窪み４９を利用して９０°回転させる。これにより、図１４（ａ）（ｂ）に示すようにつまみ部４６が反射板４３の凹み部５０に嵌まり込んだ状態となり、軸部４７の先端に位置する引掛け部４８が器具本体４１の受け部材４２の長孔４５に対して直交する方向となって引掛けられた状態となる。
【００１０】
しかしながら、前述した係止部材４４による反射板４３の取り付け構造では、係止部材４４の先端にある引掛け部４８が受け部材４２にスムーズに挿入されるとは限らず、特に、室内などの高い天井において器具本体へ反射板を位置合わせして押さえ付けながら行わなければならないために困難性を伴い、作業性が悪いという問題が依然として存在する。
【００１１】
そこで、本発明は前述の問題点に鑑みて提案されたもので、その目的とするところは、反射板を器具本体に簡単かつ迅速に取り付け得る照明器具を提供することにある。
【００１２】
【課題を解決するための手段】
前述した目的を達成するための技術的手段として、本発明は、器具本体と、前記器具本体に被せるように対向配置された反射板と、前記器具本体に設けられた受け部材と、前記反射板に予め取り付けられ、つまみ部から延びる軸部の先端に引掛け部を形成した係止部材とを備え、器具本体に反射板を所定の位置関係に配置すると共に、係止部材の引掛け部を受け部材内に挿入して係止させることにより器具本体に反射板を固定した照明器具であって、前記受け部材は、器具本体から起立した一対の側板部と、側板部の先端から内側へ鋭角に折曲成形された内折部と、内折部の先端から外側へ拡開するように折曲成形された外折部とを含み、内折部と外折部間に位置して対向する折曲部間で幅狭な隙間を形成した帯板状ばね材で構成し、前記受け部材を、その側板部の拡開を規制する側壁部を有するカバーで囲撓し、前記係止部材の引掛け部を受け部材の内折部間から外折部間に、少なくとも内折部を弾性変形により押し広げて移動させることにより、係止部材の引掛け部を外折部間に係止したことを特徴とする。
【００１３】
尚、前述のカバーは、係止部材の引掛け部の受け部材への挿入を誘導するガイド面を反射板に向けて配置することが望ましい。また、カバーのガイド面の最奥部に、係止部材の引掛け部の断面形状と対応した形状を有する孔を穿設することや、ガイド面の最奥部の孔の中央部位に、係止部材の軸部の断面形状と対応した形状を有する孔を連設することが望ましい。
【００１４】
【発明の実施の形態】
本発明に係る照明器具の実施形態を以下に詳述する。
【００１５】
この実施形態は、図１に示すように直管形蛍光ランプ用の天井直付型照明器具において、断面ほぼコ字状の器具本体１（図２参照）に対する断面Ｖ形の反射板２（図３参照）の取り付け構造である。まず、器具本体１の両端部にソケット３が装着されたソケット取付具４を設け、その近傍部位に受け部材５を配設する。尚、器具本体１の両端には側板３１（図１参照）が取り付けられる。
【００１６】
この受け部材５は、図４（ａ）〜（ｃ）に示すように一枚の帯板状ばね材を以下の形状に折り曲げ成形し、器具本体１の長手方向と直交する方向、即ち、前述の帯板状ばね材の幅方向が器具本体１の長手方向に沿うように配置したものであり、器具本体１にねじ止め等により固定された底板部６と、その底板部６の両端から起立した一対の側板部７と、その側板部７の先端から内側へ鋭角に折曲成形された内折部８と、その内折部８の先端から外側へ拡開するように折曲成形された外折部９とからなり、内折部８と外折部９間に位置して対向する折曲部１０間で幅狭な隙間ｍを形成する。尚、前述した側板部７は、後述する係止部材１６の先端の抜けを防止するため、内側に弾性力が作用し易いように若干内側へ折り曲げ成形した形状を有する。この側板部７は、図示以外にも、全体を若干内側に傾斜させた形状としてもよい。
【００１７】
ここで、図５（ａ）〜（ｄ）及び図６（ａ）（ｂ）に示すようにこの受け部材５を囲撓するようにカバー１１が設けられる。このカバー１１は中空状の樹脂成形品であり、受け部材５を囲撓するように器具本体１に取り付けられる。このカバー１１は、受け部材５の周囲を囲撓する側壁部１２を有し、その側壁部１２から延びる頂部には、反射板２と対向する部位にすり鉢状のガイド面１３が形成され、その最奥部に器具本体１の長手方向に沿う長孔１４が穿設され、その長孔１４のほぼ中央部位に長孔方向と直交する方向に細孔１５を連設する。この長孔１４と細孔１５との交差部位に、係止部材１６の軸部１８の円形部３３を位置規制する丸孔３５を一連に有する。尚、図中、３６はカバー１１を、器具本体１の取付孔３７に嵌合させることにより係止するための取付片である。
【００１８】
一方、係止部材１６は、図７（ａ）〜（ｄ）及び図８（ａ）（ｂ）に示すようにつまみ部１７から一体的に延びる軸部１８の先端に引掛け部１９を一連に形成したもので、金属製の芯材２０とその芯材２０の一部を被覆する樹脂材２１とで構成される。つまみ部１７は、芯材２０を被覆した樹脂材２１でもって所定の形状、即ち、係止部材１６を反射板２に取り付けた時に、つまみ部１７が反射板２の稜線形状面２２に形成された凹み部２３に配置されて反射板２の稜線形状面２２と面一になるような稜線形状面３２を有する〔図１及び図９（ｂ）参照〕。尚、つまみ部１７の裏面には、後述の反射板２の凹み部２３の平坦面２４に設けられた凸部２５が入り込む凹溝２６が形成されている。
【００１９】
軸部１８のつまみ部１７の直下部位には、つまみ部１７との間で反射板２が入り込むように若干の隙間を介して突起部２７が樹脂材２１で形成され、その突起部２７は反射板２の長手方向と直交する方向に張り出させている。この軸部１８は、つまみ部側のほぼ半分程度が断面円形で所定の外径を有する円形部３３と、引掛け部側のほぼ半分程度が一部で芯材２０が露呈した断面四角形で各辺が所定の寸法を有する矩形部３４とで構成される。また、前述の軸部１８の先端に位置する引掛け部１９は、軸部１８に向けて拡幅してその軸部１８との間で幅狭となる正三角形を有する芯材２０からなり、前述の突起部２７と同様、反射板２の長手方向と直交する方向に張り出した形状をなす。
【００２０】
また、反射板２（図３参照）における稜線部２２の受け部材対向部位には、図９（ａ）〜（ｃ）に示すように前述の係止部材１６のつまみ部１７が入り込む凹み部２３が例えば絞り加工により形成され、その凹み部２３に形成された平坦面２４に反射板２の幅方向に沿う長孔２８を穿設する。尚、この平坦面２４には、前述した係止部材１６のつまみ部１７の裏面に形成された凹溝２６に入り込んで位置決めされる凸部２５が形成され、更に、長孔２８の両側には裏面側に突出する膨出部２９が形成され、係止部材１６の反射板２への取り付け時に、この膨出部２９に突起部２７が当接することにより反射板２に対する係止部材１６のがたつきを抑制するようにしている。
【００２１】
本発明では、反射板２を器具本体１に取り付ける要領は以下の通りである。
【００２２】
まず、反射板２を器具本体１に取り付けるに先立って、反射板２に係止部材１６を予め装着しておく。即ち、係止部材１６を反射板２の凹み部２２に穿設された長孔２８に挿入する。この時、係止部材１５のつまみ部１６を反射板２の長手方向と直交する方向に向けて挿入することにより、その係止部材１６の軸部１８の先端にある引掛け部１９及び軸部１８の基端にある突起部２７を長孔２８に挿通させることができ、その上で、係止部材１６のつまみ部１７を９０°回転させる。
【００２３】
これにより、図１０に示すように係止部材１６のつまみ部１７と突起部２７との間に反射板２の凹み部２３が挟み込まれてその反射板２に係止部材１６が支持される。この時、つまみ部１７の裏面にある凹溝２６に反射板２の凹み部２３の平坦面２４にある凸部２５が入り込んで係止部材１６の回転方向を規制して位置決めする。また、反射板２の凹み部２３の平坦面２４にある膨出部２９が係止部材１６の突起部２７に当接することにより、反射板２に対する係止部材１６のがたつきを防止する。この状態で、係止部材１６のつまみ部１７は、その外表面である稜線形状面３２が反射板２の稜線形状面２２と面一になる〔図１及び図９（ｂ）参照〕。また、係止部材１６の軸部１８の先端にある引掛け部１９は、反射板２の長手方向と直交する方向に張り出すように向くことになる。
【００２４】
このようにして係止部材１６が予め取り付けられた反射板２を、天井に取り付けられた器具本体１に対して位置合わせした上で押し付ける。この押し付けだけにより反射板２は器具本体１に取り付けられる。即ち、反射板２の係止部材１６の先端にある引掛け部１９が、まずカバー１１の長孔１４の中央で交差する細孔１５に挿通される。この時、カバー１１のすり鉢状のガイド面１３に誘導されるため、係止部材１６の引掛け部１９が前述の細孔１５にスムーズに挿入される。
【００２５】
その後、係止部材１６の引掛け部１９は受け部材５の内折部８に当接する。反射板２の押し付けにより、図１１に示すように引掛け部１９が受け部材５の内折部８を外側へ押し広げようとし、まず、その受け部材５の側板部７が弾性力に抗して外側に拡開する。その側板部７がある程度拡開すると、カバー１１に当接してその変形が規制されるため、その後は内折部８が弾性力に抗して変形して内折部８と外折部９間に位置して対向する折曲部１０間で幅狭な隙間ｍを大きくしていく。
【００２６】
そして、その隙間ｍを引掛け部１９が通過すると、図１２に示すように内折部８及び側板部７が弾性力により元の状態に復帰する。このように係止部材１６の引掛け部１９が、対向する折曲部１０間の隙間ｍを通過してしまうと、その引掛け部１９が外折部９に当接して引掛けられた状態となり、その係止部材１６により反射板２が器具本体１に装着される。
【００２７】
この時、係止部材１６の軸部１８では、引掛け部側に位置する矩形部３４が断面四角形となっているので、受け部材５の内折部８と外折部９間の折曲部１０と線接触していることから、係止部材１６が回転方向にがたつきがない。また、つまみ部側に位置する円形部３３が断面円形となっているので、カバー１１の長孔１４と細孔１５との交差部位にある丸孔３５でもって位置ずれが規制される。
【００２８】
また、受け部材５がカバー１１に囲撓されていることから、反射板２の装着後、係止部材１６の引掛け部１９が受け部材５から抜けようとしても、受け部材５の側板部７が拡開することをカバー１１が規制するため、その側板部７が拡開することはなく、その結果、係止部材１６の引掛け部１９が受け部材５の対向する折曲部１０間の隙間ｍから抜けることはないので、反射板２の落下防止が確実である。
【００２９】
反射板２の器具本体１からの取り外しは以下の要領でもって行えばよい。
【００３０】
まず、係止部材１６のつまみ部１６を９０°回転させることにより、その係止部材１６の軸部１８の先端にある引掛け部１９を９０°回転させてその張り出し方向を器具本体１の長手方向に沿わせる。これにより、その係止部材１６の引掛け部１９が受け部材５の対向する折曲部１０間の隙間ｍを通過することが可能となる。従って、係止部材１６の受け部材５への引掛け状態が解除されるため、反射板２を器具本体１から取り外すことが可能となる。
【００３１】
尚、以上の実施形態では、器具本体１が天井に取り付けられた天井直付型照明器具について説明したが、本発明はこれに限定されることなく、例えば、器具本体１が天井から吊り下げられた状態で反射板２を取り付ける場合にも適用可能である。
【００３２】
【発明の効果】
本発明によれば、反射板を器具本体に装着した状態では、カバーにより受け部材から係止部材が抜脱することを確実に防止することができ、また、反射板の器具本体への装着時、カバーのガイド面により係止部材を受け部材へスムーズに挿入することができて、特に室内などの高い天井での取り付け作業においてその作業性が大幅に改善され、反射板を器具本体に簡単かつ迅速に取り付けることができて、その実用的価値は非常に大きい。
【図面の簡単な説明】
【図１】本発明に係る照明器具の実施形態を示す一部省略部分を含む側面図
【図２】（ａ）は器具本体を示す側面図
（ｂ）は（ａ）の平面図
（ｃ）は（ｂ）の正面図
【図３】反射板を示す平面図
【図４】（ａ）は受け部材を示す側面図
（ｂ）は（ａ）の底面図
（ｃ）は（ａ）の側面図
【図５】（ａ）はカバーを示す平面図
（ｂ）は（ａ）の正面図
（ｃ）は（ｂ）の側面図
（ｄ）は（ｂ）の底面図
【図６】（ａ）は図５（ａ）のＥ−Ｅ線に沿う断面図
（ｂ）は図５（ａ）のＦ−Ｆ線に沿う断面図
【図７】（ａ）は係止部材を示す平面図
（ｂ）は（ａ）の正面図
（ｃ）は（ｂ）の側面図
（ｄ）は（ｂ）の底面図
【図８】（ａ）は図７（ｂ）のＣ−Ｃ線に沿う断面図
（ｂ）は図７（ｃ）のＤ−Ｄ線に沿う断面図
【図９】（ａ）は図３の要部拡大平面図
（ｂ）は（ａ）のＡ−Ａ線に沿う断面図
（ｃ）は（ａ）のＢ−Ｂ線に沿う断面図
【図１０】器具本体の受け部材へ反射板の係止部材を挿入する前の状態を示す断面図
【図１１】器具本体の受け部材へ反射板の係止部材を挿入する途中の状態を示す断面図
【図１２】器具本体の受け部材へ反射板の係止部材を挿入した後の状態を示す断面図
【図１３】（ａ）は本発明の前提となる反射板の取り付け構造で、係止部材の挿入前の状態を示す断面図
（ｂ）は（ａ）のＧ−Ｇ線に沿う断面図
【図１４】（ａ）は図１３（ａ）の係止部材を挿入した後に９０°回転させた状態を示す断面図
（ｂ）は（ａ）のＨ−Ｈ線に沿う断面図
【符号の説明】
１器具本体
２反射板
５受け部材
７側板部
８内折部
９外折部
１０折曲部
１１カバー
１２側壁部
１３ガイド面
１５孔（細孔）
１６係止部材
３５孔（丸孔）
ｍ隙間[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting fixture, and more particularly, to a structure for attaching a reflector to a fixture body in a direct lighting fixture for a straight tube fluorescent lamp.
[0002]
[Prior art]
A direct lighting fixture for a straight tube fluorescent lamp includes, for example, a fixture main body attached to the ceiling, socket fixtures disposed at both ends of the fixture main body, and sockets attached to the socket fixtures. And a V-shaped reflector attached to the instrument body so as to cover the instrument body.
[0003]
Although not shown, the reflector plate is attached to the instrument body by inserting a decorative screw into a through hole formed in the reflector plate and screwing it into a screw hole provided in the instrument body.
[0004]
[Problems to be solved by the invention]
By the way, in the reflector mounting structure using the cosmetic screw described above, the cosmetic screw must be rotated, and this rotational operation is performed by aligning the reflector to the instrument body on a high ceiling such as in a room. It is difficult because it must be done while pressing. If the hand is out of order at the time of attaching the cosmetic screw, the cosmetic screw may be removed, the workability is very poor, and the number of installation steps is increased. Moreover, although it was a cosmetic screw, since it became the form protruded from the attachment surface of a reflecting plate, its external appearance was not favorable.
[0005]
Therefore, as another mounting structure of the reflecting plate in consideration of these problems, as shown in FIGS. 13A and 13B, the receiving member 42 provided on the instrument main body 41 is locked from the reflecting plate 43. The reflection plate 43 is fixed to the instrument body 41 by inserting the member 44.
[0006]
Specifically, a long hole 45 is formed at the top of the receiving member 42 provided in the instrument main body 41 along the width direction of the instrument main body 41. On the other hand, the locking member 44 is integrally formed from the knob portion 46. The extending shaft portion 47 is formed with a hook portion 48 formed in a series at the tip thereof. As will be described later, the knob portion 46 is easily pinched by hand by providing recesses 49 on both sides so that the operator can easily rotate.
[0007]
A concave portion 50 into which the knob portion 46 of the locking member 44 is fitted is formed at a portion of the reflecting plate 43 facing the receiving member 42, and a long hole 51 is formed in the central portion of the concave portion 50. It is installed.
[0008]
In this attachment structure of the reflection plate 43, after the reflection plate 43 is aligned with the instrument body 41 attached to the ceiling, the locking member 44 is inserted into the long hole 51 formed in the recess 50 of the reflection plate 43. Insert. At this time, the hook portion 48 at the tip of the shaft portion 47 of the locking member 44 is inserted into the elongated hole 45 of the receiving member 42 of the instrument main body 41.
[0009]
From this state, the locking member 44 is rotated by 90 ° using the recess 49 of the knob 46. Accordingly, as shown in FIGS. 14A and 14B, the knob portion 46 is fitted into the recess portion 50 of the reflecting plate 43, and the hook portion 48 positioned at the tip of the shaft portion 47 is the instrument body 41. It becomes the state which became the direction orthogonal to the long hole 45 of the receiving member 42, and was hooked.
[0010]
However, in the mounting structure of the reflection plate 43 by the locking member 44 described above, the hook portion 48 at the tip of the locking member 44 is not always smoothly inserted into the receiving member 42, and is particularly high in a room or the like. There is still a problem that the workability is poor because it is difficult to perform while positioning and pressing the reflector on the fixture body on the ceiling.
[0011]
Therefore, the present invention has been proposed in view of the above-described problems, and an object of the present invention is to provide a lighting fixture that can easily and quickly attach a reflection plate to the fixture body.
[0012]
[Means for Solving the Problems]
As technical means for achieving the above-described object, the present invention provides an instrument main body, a reflector disposed so as to cover the instrument main body, a receiving member provided on the instrument main body, and the reflector And a locking member having a hook portion formed at the tip of the shaft portion extending from the knob portion, the reflector plate is disposed in a predetermined positional relationship on the instrument body, and the hook portion of the locking member is provided. A lighting fixture in which a reflector is fixed to a fixture body by being inserted into and locked in a receptacle member, wherein the receptacle member has a pair of side plate portions standing from the fixture body and an acute angle inward from the tip of the side plate portion. And an outer folding part that is bent so as to expand outward from the tip of the inner folding part, and is located between and opposed to the inner folding part. It is composed of a strip-shaped spring material in which a narrow gap is formed between the bent portions, and the receiving The member is surrounded and bent by a cover having a side wall portion that regulates the expansion of the side plate portion, and at least the inner fold portion is provided between the inner fold portion and the outer fold portion of the receiving member. The hook portion of the locking member is locked between the outer folding portions by being expanded and moved by elastic deformation.
[0013]
In addition, as for the above-mentioned cover, it is desirable to arrange | position the guide surface which guides the insertion to the receiving member of the hook part of a latching member toward a reflecting plate. In addition, a hole having a shape corresponding to the cross-sectional shape of the hooking portion of the locking member is drilled in the innermost portion of the guide surface of the cover, or the center portion of the innermost hole of the guide surface is engaged. It is desirable to provide a hole having a shape corresponding to the cross-sectional shape of the shaft portion of the stop member.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the lighting fixture according to the present invention will be described in detail below.
[0015]
In this embodiment, as shown in FIG. 1, in a direct lighting fixture for a straight tube fluorescent lamp, a reflector 2 (see FIG. 2) having a V-shaped cross section with respect to a fixture body 1 (see FIG. 2) having a substantially U-shaped cross section. 3). First, the socket fixture 4 to which the socket 3 is attached is provided at both ends of the instrument body 1, and the receiving member 5 is disposed in the vicinity thereof. Side plates 31 (see FIG. 1) are attached to both ends of the instrument body 1.
[0016]
As shown in FIGS. 4A to 4C, the receiving member 5 is formed by bending a single strip spring material into the following shape and orthogonal to the longitudinal direction of the instrument body 1, that is, as described above. The bottom plate portion 6 is disposed so that the width direction of the strip plate spring material is along the longitudinal direction of the instrument main body 1, and is fixed to the instrument main body 1 by screwing or the like, and is erected from both ends of the bottom plate portion 6. The pair of side plate portions 7, the inner folding portion 8 bent at an acute angle inward from the tip of the side plate portion 7, and the inner folding portion 8 were bent so as to expand outward from the tip. A narrow gap m is formed between the bent portions 10 that are located between the inner folded portion 8 and the outer folded portion 9 and are opposed to each other. The side plate portion 7 described above has a shape that is bent slightly inward so that an elastic force easily acts on the inner side in order to prevent the distal end of a locking member 16 described later from coming off. The side plate portion 7 may have a shape in which the whole is inclined slightly inward in addition to the illustration.
[0017]
Here, as shown in FIGS. 5A to 5D and FIGS. 6A and 6B, the cover 11 is provided so as to surround and bend the receiving member 5. The cover 11 is a hollow resin molded product, and is attached to the instrument body 1 so as to surround and flex the receiving member 5. The cover 11 has a side wall portion 12 that surrounds the periphery of the receiving member 5, and a mortar-shaped guide surface 13 is formed at a top portion extending from the side wall portion 12 at a portion facing the reflector 2. A long hole 14 along the longitudinal direction of the instrument main body 1 is formed in the innermost part, and a fine hole 15 is continuously provided at a substantially central portion of the long hole 14 in a direction orthogonal to the long hole direction. A series of round holes 35 for regulating the position of the circular portion 33 of the shaft portion 18 of the locking member 16 are provided at the intersections of the long holes 14 and the fine holes 15. In the figure, reference numeral 36 denotes an attachment piece for locking the cover 11 by fitting it into the attachment hole 37 of the instrument body 1.
[0018]
On the other hand, as shown in FIGS. 7A to 7D and FIGS. 8A and 8B, the locking member 16 has a series of hooking portions 19 at the tip of a shaft portion 18 that extends integrally from the knob portion 17. It is formed of a metal core material 20 and a resin material 21 that covers a part of the core material 20. The knob portion 17 is formed in a predetermined shape with the resin material 21 covering the core material 20, that is, when the locking member 16 is attached to the reflecting plate 2, the knob portion 17 is formed on the ridgeline-shaped surface 22 of the reflecting plate 2. It has the ridgeline-shaped surface 32 which is arrange | positioned at the hollow part 23 and becomes flush with the ridgeline-shaped surface 22 of the reflecting plate 2 [refer FIG.1 and FIG.9 (b)]. In addition, a concave groove 26 into which a convex portion 25 provided on a flat surface 24 of a concave portion 23 of the reflecting plate 2 described later enters is formed on the back surface of the knob portion 17.
[0019]
A projecting portion 27 is formed of a resin material 21 through a slight gap so that the reflector 2 enters between the knob portion 17 and the portion directly below the knob portion 17 of the shaft portion 18. The plate 2 projects in a direction perpendicular to the longitudinal direction of the plate 2. The shaft portion 18 has a circular portion 33 having a predetermined cross section with a circular shape on the approximately half side on the knob portion side, and a rectangular shape on a cross section in which the core material 20 is exposed with a substantially half portion on the hook portion side. The side is composed of a rectangular portion 34 having a predetermined dimension. In addition, the hook portion 19 located at the tip of the shaft portion 18 includes a core member 20 having an equilateral triangle that widens toward the shaft portion 18 and narrows between the shaft portion 18. As in the case of the protruding portion 27, the shape projecting in a direction perpendicular to the longitudinal direction of the reflecting plate 2 is formed.
[0020]
Further, as shown in FIGS. 9A to 9C, the concave portion 23 into which the knob portion 17 of the locking member 16 described above enters the receiving member facing portion of the ridge line portion 22 in the reflector 2 (see FIG. 3). Is formed by drawing, for example, and a long hole 28 is formed in the flat surface 24 formed in the recessed portion 23 along the width direction of the reflecting plate 2. The flat surface 24 is provided with convex portions 25 that are positioned by entering the concave grooves 26 formed on the back surface of the knob portion 17 of the locking member 16 described above. A bulging portion 29 protruding on the back surface side is formed, and when the locking member 16 is attached to the reflecting plate 2, the protruding portion 27 abuts on the bulging portion 29 so that the locking member 16 is attached to the reflecting plate 2. I try to suppress rattling.
[0021]
In the present invention, the procedure for attaching the reflector 2 to the instrument body 1 is as follows.
[0022]
First, prior to attaching the reflecting plate 2 to the instrument body 1, the locking member 16 is attached to the reflecting plate 2 in advance. That is, the locking member 16 is inserted into the long hole 28 formed in the recess 22 of the reflecting plate 2. At this time, the hook portion 19 and the shaft portion at the tip of the shaft portion 18 of the locking member 16 are inserted by inserting the knob portion 16 of the locking member 15 in the direction orthogonal to the longitudinal direction of the reflecting plate 2. 18 can be inserted into the long hole 28, and the knob 17 of the locking member 16 is rotated by 90 °.
[0023]
Accordingly, as shown in FIG. 10, the recess 23 of the reflecting plate 2 is sandwiched between the knob portion 17 and the protruding portion 27 of the locking member 16, and the locking member 16 is supported by the reflecting plate 2. At this time, the convex portion 25 on the flat surface 24 of the concave portion 23 of the reflecting plate 2 enters the concave groove 26 on the back surface of the knob portion 17 so that the rotation direction of the locking member 16 is regulated and positioned. Further, the bulging portion 29 on the flat surface 24 of the recessed portion 23 of the reflecting plate 2 abuts on the protrusion 27 of the locking member 16, thereby preventing the locking member 16 from rattling with respect to the reflecting plate 2. In this state, the knob portion 17 of the locking member 16 has a ridgeline-shaped surface 32 that is the outer surface thereof flush with the ridgeline-shaped surface 22 of the reflector 2 (see FIGS. 1 and 9B). Further, the hooking portion 19 at the tip of the shaft portion 18 of the locking member 16 is directed so as to project in a direction orthogonal to the longitudinal direction of the reflecting plate 2.
[0024]
In this way, the reflecting plate 2 to which the locking member 16 is attached in advance is pressed against the instrument body 1 attached to the ceiling. The reflector 2 is attached to the instrument body 1 only by this pressing. That is, the hooking portion 19 at the tip of the locking member 16 of the reflecting plate 2 is first inserted into the pore 15 intersecting at the center of the long hole 14 of the cover 11. At this time, since it is guided to the mortar-shaped guide surface 13 of the cover 11, the hooking portion 19 of the locking member 16 is smoothly inserted into the aforementioned pore 15.
[0025]
Thereafter, the hooking portion 19 of the locking member 16 contacts the inner folding portion 8 of the receiving member 5. As shown in FIG. 11, the hooking portion 19 tries to push the inner folding portion 8 of the receiving member 5 outward as the reflecting plate 2 is pressed. First, the side plate portion 7 of the receiving member 5 resists the elastic force. And expand outward. When the side plate portion 7 is expanded to some extent, the deformation is restricted by contacting the cover 11, and thereafter the inner folding portion 8 is deformed against the elastic force and the inner folding portion 8 and the outer folding portion 9 are deformed. The narrow gap m is increased between the bent portions 10 positioned opposite to each other.
[0026]
And if the hook part 19 passes the clearance gap m, as shown in FIG. 12, the inner folding part 8 and the side-plate part 7 will reset to an original state with an elastic force. Thus, when the hooking portion 19 of the locking member 16 passes through the gap m between the opposing bent portions 10, the hooking portion 19 is in contact with the outer folding portion 9 and is hooked. Thus, the reflecting plate 2 is attached to the instrument main body 1 by the locking member 16.
[0027]
At this time, in the shaft portion 18 of the locking member 16, the rectangular portion 34 located on the hooking portion side has a quadrangular cross section, and therefore, a bent portion between the inner folded portion 8 and the outer folded portion 9 of the receiving member 5. 10, the locking member 16 does not rattle in the rotational direction. Further, since the circular portion 33 located on the knob portion side has a circular cross section, the positional deviation is regulated by the round hole 35 at the intersection of the long hole 14 and the fine hole 15 of the cover 11.
[0028]
Further, since the receiving member 5 is surrounded by the cover 11, even if the hooking portion 19 of the locking member 16 tries to come off from the receiving member 5 after the reflection plate 2 is mounted, the side plate portion 7 of the receiving member 5. Since the cover 11 restricts the expansion of the side plate portion 7, the side plate portion 7 does not expand, and as a result, the hook portion 19 of the locking member 16 is between the opposing bent portions 10 of the receiving member 5. Since it does not escape from the gap m, the reflection plate 2 is reliably prevented from falling.
[0029]
The reflection plate 2 may be removed from the instrument body 1 in the following manner.
[0030]
First, by rotating the knob portion 16 of the locking member 16 by 90 °, the hooking portion 19 at the tip of the shaft portion 18 of the locking member 16 is rotated by 90 ° so that the protruding direction is the longitudinal direction of the instrument body 1. Keep in the direction. As a result, the hooking portion 19 of the locking member 16 can pass through the gap m between the opposed bent portions 10 of the receiving member 5. Therefore, since the hooking state of the locking member 16 on the receiving member 5 is released, the reflecting plate 2 can be detached from the instrument body 1.
[0031]
In addition, although the above embodiment demonstrated the ceiling direct attachment type lighting fixture with which the instrument main body 1 was attached to the ceiling, this invention is not limited to this, For example, the instrument main body 1 is suspended from the ceiling. The present invention can also be applied to the case where the reflection plate 2 is attached in a state where the reflection plate 2 is attached.
[0032]
【The invention's effect】
According to the present invention, it is possible to reliably prevent the locking member from being detached from the receiving member by the cover in a state in which the reflector is mounted on the instrument body, and when the reflector is mounted on the instrument body. The guide surface of the cover allows the locking member to be smoothly inserted into the receiving member, and the workability is greatly improved especially in the installation work on a high ceiling such as in a room. It can be installed quickly and its practical value is very great.
[Brief description of the drawings]
FIG. 1 is a side view including a partially omitted portion showing an embodiment of a lighting fixture according to the present invention. FIG. 2A is a side view showing a fixture body. FIG. 1B is a plan view of FIG. Fig. 3 is a front view of the reflector. Fig. 4A is a side view of the receiving member. Fig. 3B is a bottom view of Fig. 3A. Fig. 3C is a side view of Fig. 3A. 5A is a plan view showing a cover, FIG. 5B is a front view of FIG. 5A, FIG. 5C is a side view of FIG. 5B, and FIG. 6D is a bottom view of FIG. ) Is a cross-sectional view taken along line EE in FIG. 5A. FIG. 7B is a cross-sectional view taken along line FF in FIG. 5A. FIG. 7A is a plan view showing a locking member. b) is along the line C-C in (a front view of) (c) is (b side view) (d) is a bottom view 8 of (b) (a) Figure 7 (b) cross-section Figure (b) is a cross-sectional view taken along the line DD of FIG. 7 ( c ). [FIG. 9] (a) is an enlarged plan view of the main part of FIG. Rear view (b) is a locking member of the reflector to the A-A line in along sectional view (c) is a cross-sectional view [FIG. 10] instrument body taken along the line B-B of (a) receiving member (a) FIG. 11 is a cross-sectional view showing a state before inserting the locking member of the reflection plate into the receiving member of the instrument main body. FIG. 13A is a reflection plate mounting structure which is a premise of the present invention, and FIG. 13B is a cross-sectional view showing a state before the locking member is inserted. sectional view taken along line G-G of a) and FIG. 14 (a) is a sectional view showing a state rotated 90 ° after inserting the locking member of FIG. 13 (a) (b) is a (a) Sectional view along line HH [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Reflecting plate 5 Reception member 7 Side plate part 8 Inner folding part 9 Outer folding part 10 Bending part 11 Cover 12 Side wall part 13 Guide surface 15 Hole (pore)
16 Locking member 35 hole (round hole)
m Clearance

Claims

An instrument body, a reflector plate disposed opposite to the instrument body, a receiving member provided on the instrument body, and a hook portion attached to the reflector plate in advance and attached to the tip of a shaft portion extending from the knob portion And a reflector disposed on the instrument main body in a predetermined positional relationship, and a hooking portion of the latch member is inserted into the member to be latched so that the reflector main body has a reflector. A lighting fixture with
The receiving member expands outward from the tip of the inner folding portion, a pair of side plates raised from the instrument body, an inner folding portion that is bent at an acute angle inward from the tip of the side plate portion, and the inner folding portion. An outer folding part formed into a bent shape, and a belt-like spring material in which a narrow gap is formed between the opposing folding parts located between the inner folding part and the outer folding part, The member is bent with a cover having a side wall that regulates the expansion of the side plate,
The hooking portion of the locking member is moved from the inner folding portion of the receiving member to the outer folding portion by pushing and moving at least the inner folding portion by elastic deformation, thereby moving the hooking portion of the locking member to the outer folding portion. A lighting apparatus characterized by being locked in between.

The lighting device according to claim 1, wherein the cover has a guide surface that directs insertion of the hooking portion of the locking member into the receiving member facing the reflector.

The lighting apparatus according to claim 2, wherein a hole having a shape corresponding to a cross-sectional shape of the hook portion of the locking member is formed in the innermost portion of the guide surface of the cover.

The lighting apparatus according to claim 3, wherein a hole having a shape corresponding to a cross-sectional shape of the shaft portion of the locking member is continuously provided at a central portion of the hole at the innermost portion of the guide surface.