JP6525712B2

JP6525712B2 - Light source cover, light source unit and lighting apparatus

Info

Publication number: JP6525712B2
Application number: JP2015090994A
Authority: JP
Inventors: 博文池谷; 公史齋藤; 坂本　哲也; 哲也坂本
Original assignee: Mitsubishi Electric Corp; Mitsubishi Electric Lighting Corp
Current assignee: Mitsubishi Electric Corp; Mitsubishi Electric Lighting Corp
Priority date: 2015-04-28
Filing date: 2015-04-28
Publication date: 2019-06-05
Anticipated expiration: 2035-04-28
Also published as: JP2016207590A

Description

この発明は、照明器具に関する。 The present invention relates to a luminaire.

従来から、ＬＥＤモジュールおよび直流電源装置を内蔵する長尺状の光源部と、光源部の一部が挿入される凹部を有する器具本体部とを備える照明器具であって、光源部が器具本体部に着脱自在に取り付けられる照明器具がある。 Conventionally, a lighting fixture is provided with an elongated light source unit including an LED module and a DC power supply device, and an appliance main body having a recess into which a part of the light source is inserted. There is a luminaire that is removably attached to the

従来の照明器具では、カバー部材を膨出させた形状にして側板方向や天井方向の明るさを増やす構成のものがある（例えば特許文献１、図２１、［００４３］等）。 In the conventional lighting fixture, there is a thing of the structure which made the shape which expanded the cover member and increased the brightness of a side plate direction and a ceiling direction (for example, patent document 1, FIG. 21, [0043] etc.).

照明器具では、側板方向や天井方向の明るさのさらなる向上の要請がある。また光源部と、光源部が挿入される凹部との隙間が暗部となるという課題がある。 With lighting fixtures, there is a demand for further improvement in the brightness in the side plate direction and the ceiling direction. In addition, there is a problem that a gap between the light source unit and the concave portion into which the light source unit is inserted is a dark portion.

特許第５６５２０１５号公報Patent No. 5652015 gazette

この発明は、側板方向や天井方向の明るさの向上を目的とする。 The present invention aims to improve the brightness in the side plate direction and the ceiling direction.

この発明の光源カバーは、
光源である発光素子が実装された発光素子基板を覆う長手形状をなし、長手方向を法線方向とする断面の形状が凸となる凸断面形状をなす拡散性を有する透光性の主部と、
前記主部の長手方向に沿い前記主部の短手方向における両側端部となる一方の端部と他方の端部とを基端部として前記凸となる方向と反対方向にそれぞれ立ち上がる、拡散性を有する透光性の一対のカバー側壁部と、
前記一対のカバー側壁部の終端部を基端部として前記短手方向における中央部に向かって傾斜して立ち上がる一対の傾斜部と、
前記一対の傾斜部のそれぞれの終端部に形成され、前記終端部において前記反対方向に延びる壁形状の上側壁形状部と前記凸となる方向に延びる壁形状の下側壁形状部とを有する一対の上下壁形状部と、
前記一対の上下壁形状部のそれぞれの前記上側壁形状部の終端部に形成された、一対の係合部と、
前記一対の上下壁形状部のそれぞれの前記下側壁形状部の前記凸となる方向の終端部から前記中央部に向かって延びる一対の延出部と
を備えた。 The light source cover of the present invention is
A light-transmissive main portion having a diffusivity and a convex cross-sectional shape, which has a longitudinal shape covering a light emitting element substrate on which a light emitting element as a light source is mounted, and a cross section whose longitudinal direction is a normal direction is convex. ,
A diffusive property which rises along the longitudinal direction of the main part, in the opposite direction to the convex direction, with one end and the other end serving as both ends in the lateral direction of the main part as the base end A pair of translucent cover side wall portions having
A pair of sloped portions which rise toward the central portion in the short direction with the end portions of the pair of cover side wall portions as the base end portions;
A pair of end portions of the pair of inclined portions, the end portions including a wall-shaped upper side wall-shaped portion extending in the opposite direction and a wall-shaped lower side wall-shaped portion extending in the convex direction Upper and lower wall shape parts,
A pair of engagement portions formed at the end of the upper side wall-shaped portion of each of the pair of upper and lower wall-shaped portions;
A pair of extending portions extending toward the central portion from the terminal end portion in the convex direction of the lower side wall shaped portion of each of the pair of upper and lower wall shaped portions is provided.

本発明の光源カバーによれば、側板方向や天井方向の明るさを向上できる。 According to the light source cover of the present invention, the brightness in the side plate direction and the ceiling direction can be improved.

実施の形態１の図で、照明器具３００の斜視図。FIG. 16 is a diagram of the first embodiment and a perspective view of the lighting fixture 300. 実施の形態１の図で、照明器具３００を器具本体１００と光源ユニット２００とに分解した分解斜視。FIG. 16 is an exploded perspective view of the lighting apparatus 300 disassembled into an apparatus main body 100 and a light source unit 200 in the view of the first embodiment. 実施の形態１の図で、電源装置２６０側を示す光源ユニット２００の斜視図。FIG. 2 is a diagram of the first embodiment and is a perspective view of a light source unit 200 showing the power supply device 260 side. 実施の形態１の図で、器具本体１００の分解斜視図。Fig. 2 is an exploded perspective view of the instrument main body 100 in the first embodiment. 実施の形態１の図で、器具本体１００の斜視図。FIG. 2 is a view of the first embodiment and a perspective view of the instrument main body 100. FIG. 実施の形態１の図で、光源ユニット２００の分解斜視図。FIG. 2 is a diagram of Embodiment 1, and an exploded perspective view of a light source unit 200. 実施の形態１の図で、光源ユニット２００の図３に示す断面Ａ−ＡにおけるＡ−Ａ断面図。FIG. 7 is a diagram of the first embodiment and is a cross-sectional view along the line AA in the cross-sectional line AA shown in FIG. 3 of the light source unit 200. 実施の形態１の図で、光源ユニット２００の図３に示す断面Ａ−Ａに相当する断面図。4 is a diagram of the first embodiment and is a cross-sectional view corresponding to the cross section A-A shown in FIG. 3 of the light source unit 200. FIG. 実施の形態１の図で、カバー部２３０の断面図。FIG. 7 is a diagram of the first embodiment and is a cross-sectional view of a cover portion 230. 実施の形態１の図で、主部２３１の厚み変化を説明するための模式的なカバー断面図。The figure of Embodiment 1, and a typical cover sectional view for explaining thickness change of main part 231. 実施の形態１の図で、主部２３１の厚み変化を説明するための図。The figure for demonstrating the thickness change of the main part 231 in the figure of Embodiment 1. FIG. 実施の形態１の図で、主部２３１の厚み変化を説明するための別の図。The figure of Embodiment 1 and another figure for demonstrating the thickness change of the main part 231. FIG. 実施の形態１の図で、主部２３１の厚み変化を説明するための、さらに別の図。The figure of Embodiment 1, and another figure for demonstrating the thickness change of the main part 231. FIG. 実施の形態２の図で、照明器具３００−１の斜視図。FIG. 21 is a diagram of the second embodiment and is a perspective view of a lighting fixture 300-1. 図１５のＢ−Ｂ断面図。BB sectional drawing of FIG. 実施の形態２の図で、照明器具３００−２の斜視図。FIG. 21 is a diagram of the second embodiment and is a perspective view of a lighting fixture 300-2. 図１７のＢ−Ｂ断面図。The BB sectional drawing of FIG. 実施の形態２の図で、照明器具３００−３の斜視図。FIG. 17 is a diagram of the second embodiment and a perspective view of a lighting fixture 300-3. 図１９のＢ−Ｂ断面図。FIG. 20 is a cross-sectional view taken along the line B-B in FIG. 実施の形態２の図で、照明器具３００−４の斜視図。FIG. 17 is a diagram of Embodiment 2 and a perspective view of a lighting fixture 300-4. 図２１のＢ−Ｂ断面図。The BB sectional drawing of FIG. 実施の形態２の図で、照明器具３００−５の斜視図。It is a figure of Embodiment 2, and is a perspective view of the lighting fixture 300-5. 図２３のＢ−Ｂ断面図。FIG. 24 is a cross-sectional view taken along the line B-B in FIG. 実施の形態２の図で、照明器具３００−６の斜視図。FIG. 21 is a diagram of Embodiment 2 and a perspective view of a lighting fixture 300-6. 図２５のＢ−Ｂ断面図。FIG. 26 is a cross-sectional view along the line B-B in FIG. 25.

実施の形態１．
図１は照明器具３００の斜視図である。図２は照明器具３００を器具本体１００と光源ユニット２００とに分解した分解斜視図である。図３は電源装置２６０側を示す光源ユニット２００の斜視図である。図４は器具本体１１０の分解斜視図である。図５は器具本体１００の斜視図である。図６は光源ユニット２００を構成する基本部品の分解斜視図である。図７は、光源ユニット２００の図３のＡ−Ａ断面図である。図８は、図３のＡ−Ａ断面に相当する断面であり、ハーネスクランプ２７０を示す断面である。図９は、カバー部２３０の断面図である。 Embodiment 1
FIG. 1 is a perspective view of a luminaire 300. FIG. 2 is an exploded perspective view in which the lighting fixture 300 is disassembled into the fixture main body 100 and the light source unit 200. FIG. 3 is a perspective view of the light source unit 200 showing the power supply device 260 side. FIG. 4 is an exploded perspective view of the instrument body 110. As shown in FIG. FIG. 5 is a perspective view of the instrument body 100. FIG. FIG. 6 is an exploded perspective view of the basic components of the light source unit 200. As shown in FIG. FIG. 7 is a cross-sectional view of the light source unit 200 taken along line A-A of FIG. FIG. 8 is a cross section corresponding to the A-A cross section of FIG. 3 and is a cross section showing the harness clamp 270. FIG. 9 is a cross-sectional view of the cover portion 230. As shown in FIG.

はじめに、図１〜図８を参照して照明器具３００の構成を説明する。照明器具３００は、長尺状の器具本体１００と、器具本体１００に着脱可能に取り付けられる長尺状の光源ユニット２００とを備える。実施の形態１の照明器具３００の構造的特徴は、カバー部２３０の主部２３１の厚みが、幅方向である短手方向において、幅中央部分（後述の中央領域２３７）が厚く、両側部分の（後述する両側領域２３）が薄い点である。 First, the configuration of the lighting apparatus 300 will be described with reference to FIGS. 1 to 8. The lighting fixture 300 includes a long fixture main body 100 and a long light source unit 200 detachably attached to the fixture main body 100. The structural feature of the lighting fixture 300 according to the first embodiment is that the thickness of the main portion 231 of the cover portion 230 is larger in the width center portion (central region 237 described later) in the width direction and in both side portions. (Side areas 23 described later) are thin points.

光源ユニット２００は、器具本体１００の後述する凹部１１１に一部を挿入された状態で、器具本体１００に着脱可能に取り付けられる。器具本体１００、光源ユニット２００はいずれも長尺状であるが、以下では、その長手方向を長手方向Ｘとし、長手方向Ｘに対して幅方向となる短手方向を短手方向Ｙ（図１）とする。 The light source unit 200 is detachably attached to the instrument body 100 in a state where a part of the light source unit 200 is inserted into a recess 111 described later of the instrument body 100. Although both the instrument main body 100 and the light source unit 200 are elongated, hereinafter, the longitudinal direction thereof is referred to as a longitudinal direction X, and a transverse direction which is a transverse direction relative to the longitudinal direction X is a transverse direction Y (FIG. And).

（光源ユニット２００）
図６に示すように、光源ユニット２００は、発光素子基板２１０、保持部２２０、光源カバーであるカバー部２３０、光源蓋部２４０を備える。
（１）発光素子基板２１０は発光素子２１２を有する。発光素子基板２１０は、長尺に形成された基板２１１の実装面２１１ａに複数の発光素子２１２が実装される。以下の実施の形態では発光素子２１２はＬＥＤである。
（２）保持部２２０は、発光素子基板２１０が取り付けられる。図６〜図８に示すように、保持部２２０は、長手形状で平板状をなす取付部２２１であって器具本体１００の平板部１１２に対向する面２２１ｂの裏面２２１ａ（取付面２２１ａともいう）に発光素子基板２１０が取り付けられる取付部２２１を有する。図６に示すように、取付部２２１は、取付長手方向（長手方向Ｘ）に基板２１１の基板長手方向（長手方向Ｘ）をそろえた状態で発光素子基板２１０が一方の面である取付面２２１ａに取り付けられる。
（３）カバー部２３０は発光素子基板２１０を覆うように保持部２２０に取り付けられる。カバー部２３０は保持部２２０に取り付けられて保持部２２０に保持される。カバー部２３０は、主部２３１と、一対として設けられたカバー側壁部２３２とを有する。主部２３１は、平板部１１２の長手方向Ｘに沿う長尺状をなし発光素子基板２１０を覆う。対となるカバー側壁部２３２は、主部２３１の長手方向Ｘに沿う一方の端部２３１ａ（短手方向Ｙにおける一方の端部）と他方の端部２３１ｂ（短手方向Ｙにおける他方の端部）とから間に保持部２２０を挟んでそれぞれ平板部１１２の位置する方向に立ち上がる側壁部であり、対となるカバー側壁部２３２である。つまり、対となるカバー側壁部２３２は、主部２３１の長手方向Ｘに沿い主部２３１の短手方向Ｙにおける両側端部となる一方の端部２３１ａと他方の端部２３１ｂとを基端部として凸となる方向（Ｚ方向）の反対方向にそれぞれ立ち上がる。平板部１１２の位置する方向は、保持部２２０の一方の面２２１ａから一方の面２２１ａの反対側の他方の面２２１ｂに向かう方向である。
（４）光源蓋部２４０は光源ユニット２００の長手方向両端を塞ぐ。
（５）また、光源ユニット２００は、器具本体１００に取り付けられたバネ部１３０と係合する連結金具２５０を有する。 (Light source unit 200)
As shown in FIG. 6, the light source unit 200 includes a light emitting element substrate 210, a holder 220, a cover 230 which is a light source cover, and a light source lid 240.
(1) The light emitting element substrate 210 has the light emitting element 212. In the light emitting element substrate 210, the plurality of light emitting elements 212 are mounted on the mounting surface 211a of the substrate 211 formed to be long. In the following embodiment, the light emitting element 212 is an LED.
(2) The light emitting element substrate 210 is attached to the holder 220. As shown in FIGS. 6 to 8, the holding portion 220 is a mounting portion 221 having a longitudinal shape and a flat plate shape, and a back surface 221 a (also referred to as a mounting surface 221 a) of the surface 221 b facing the flat portion 112 of the instrument body 100. And a mounting portion 221 to which the light emitting element substrate 210 is mounted. As shown in FIG. 6, the attachment portion 221 is an attachment surface 221 a where the light emitting element substrate 210 is one side in a state where the substrate longitudinal direction (longitudinal direction X) of the substrate 211 is aligned with the attachment longitudinal direction (longitudinal direction X). Attached to
(3) The cover 230 is attached to the holder 220 so as to cover the light emitting element substrate 210. The cover portion 230 is attached to the holding portion 220 and held by the holding portion 220. The cover portion 230 has a main portion 231 and a cover side wall portion 232 provided as a pair. The main portion 231 is elongated along the longitudinal direction X of the flat plate portion 112 and covers the light emitting element substrate 210. The pair of cover side wall portions 232 includes one end 231a (one end in the short direction Y) and the other end 231b (the other end in the short direction Y) along the longitudinal direction X of the main portion 231. And a side wall portion rising in the direction in which the flat plate portion 112 is positioned with the holding portion 220 interposed therebetween, and is a pair of cover side wall portions 232. That is, the pair of cover side wall portions 232 is a base end portion of one end portion 231a and the other end portion 231b which are both side end portions in the short direction Y of the main portion 231 along the longitudinal direction X of the main portion 231. As a, respectively, it rises in the opposite direction to the direction (Z direction) which becomes convex. The direction in which the flat plate portion 112 is positioned is a direction from one surface 221 a of the holding portion 220 toward the other surface 221 b opposite to the one surface 221 a.
(4) The light source cover 240 closes both ends of the light source unit 200 in the longitudinal direction.
(5) Further, the light source unit 200 has the connection fitting 250 which engages with the spring portion 130 attached to the instrument body 100.

（発光素子基板２１０）
発光素子基板２１０は、長尺に形成された基板２１１と、基板２１１に直線状に実装される複数の発光素子２１２とれる複数の発光素子２１２を備えている。なお、発光素子２１２を直線状に実装する列は一列でも良く、複数列でも良い。 (Light-emitting element substrate 210)
The light emitting element substrate 210 includes a long substrate 211 and a plurality of light emitting elements 212 which can be a plurality of light emitting elements 212 linearly mounted on the substrate 211. Note that one row or a plurality of rows may be used to linearly mount the light emitting elements 212.

（保持部２２０）
保持部２２０は、発光素子基板２１０が取り付けられる略矩形状をした取付部２２１と、取付部２２１の長手両側辺より発光素子基板２１０が取り付けられる面２２１ａから裏面２２１ｂの方向に立設した第一の側面部２２２−１、第二の側面部２２２−２とを有している。 (Holding section 220)
The holding portion 220 is a substantially rectangular attachment portion 221 to which the light emitting element substrate 210 is attached, and a first erected from a longitudinal side of the attachment portion 221 from the surface 221 a to which the light emitting element substrate 210 is attached to the back surface 221 b. And a second side portion 222-2.

（カバー部２３０）
図６〜図１０を参照してカバー部２３０の詳細を説明する。カバー部２３０は、図９に示すように、中心軸１１を対称軸として略対象に形成されている。中心軸１１の左側側を主体として説明するが、カバー部２３０は中心軸１１に線対称で形成されているので、説明する構成は中心軸１１の右側にも当てはまる。 (Cover part 230)
Details of the cover portion 230 will be described with reference to FIGS. As shown in FIG. 9, the cover portion 230 is formed substantially symmetrically with the central axis 11 as an axis of symmetry. Although the left side of the central axis 11 is mainly described, since the cover 230 is formed in line symmetry with the central axis 11, the configuration to be described also applies to the right side of the central axis 11.

カバー部２３０は、主部２３１、カバー側壁部２３２、第一の支持部である上側支持部２３３、第二の支持部である下側支持部２３４を備える。ここで、主部２３１およびカバー側壁部２３２の全体をカバー本体部２３０ａと称する。主部２３１、一対のカバー側壁部２３２及び一対の傾斜部２３２−１は、全体が同じ材料、例えば透光性材料で形成されている。この材料は、光の拡散性と、透光性とを有する。なお一対の傾斜部２３２−１は、光を反射する反射材料で形成されてもよい。また、上側支持部２３３及び下側支持部２３４は、全体が同じ材料、例えば反射材料で形成されている。この材料は遮光性と高反射性を有し、主部２３１等を形成する材料とは異なる。図９に示すように、主部２３１は、長手方向Ｘを法線方向とする断面の形状が、カバー側壁部の立ち上がる方向と反対方向（Ｚ方向）に凸となる凸断面形状２３０Ｄをなす。凸断面形状２３０Ｄとは図９の主部２３１の断面形状をいう。
（１）主部２３１は発光素子基板２１０から照射される光を拡散する。
（２）カバー側壁部２３２は、主部２３１の両端に一対として配設され、カバー部２３０の側面をなす。
（３）上側支持部２３３は、保持部２２０の第一の側面部２２２−１、第二の側面部２２２−２の先端部と当接する第一の支持部である。
（４）下側支持部２３４は、取付部２２１に当接する第二の支持部である。 The cover portion 230 includes a main portion 231, a cover side wall portion 232, an upper support portion 233 which is a first support portion, and a lower support portion 234 which is a second support portion. Here, the entire main portion 231 and the cover side wall portion 232 will be referred to as a cover main body portion 230a. The main portion 231, the pair of cover side wall portions 232, and the pair of inclined portions 232-1 are entirely formed of the same material, for example, a translucent material. This material has diffusivity of light and translucency. Note that the pair of inclined portions 232-1 may be formed of a reflective material that reflects light. Further, the upper support 233 and the lower support 234 are entirely formed of the same material, for example, a reflective material. This material has light shielding properties and high reflectivity, and is different from the material forming the main portion 231 and the like. As shown in FIG. 9, the main portion 231 has a convex cross-sectional shape 230D in which the shape of the cross section whose normal direction is the longitudinal direction X is convex in the direction (Z direction) opposite to the rising direction of the cover side wall portion. The convex cross-sectional shape 230D refers to the cross-sectional shape of the main portion 231 of FIG.
(1) The main portion 231 diffuses the light emitted from the light emitting element substrate 210.
(2) The cover side wall portion 232 is disposed as a pair at both ends of the main portion 231, and forms a side surface of the cover portion 230.
(3) The upper support portion 233 is a first support portion that abuts on the tip of the first side surface portion 222-1 and the second side surface portion 222-2 of the holding portion 220.
(4) The lower support portion 234 is a second support portion that contacts the mounting portion 221.

（主部２３１）
主部２３１は、発光素子基板２１０が照射する光を透過させ拡散させるものであり、発光素子基板２１０を覆う凸形状をしている。主部２３１は、一方のカバー側壁部２３２の端部Ｂ（端部２３１ａに一致）、他方のカバー側壁部２３２の端部Ｂ（端部２３１ｂに一致）を繋ぐように配設されている。言い換えれば、カバー側壁部２３２は端部Ａと端部Ｂとの間に形成されている。 (Main part 231)
The main portion 231 transmits and diffuses the light emitted from the light emitting element substrate 210, and has a convex shape covering the light emitting element substrate 210. The main portion 231 is disposed to connect an end B (corresponding to the end 231 a) of one cover side wall 232 and an end B (corresponding to the end 231 b) of the other cover side wall 232. In other words, the cover side wall portion 232 is formed between the end A and the end B.

（カバー側壁部２３２）
カバー側壁部２３２は、主部２３１の両端（端部Ｂ）に対になるよう配設され、主部２３１の両端（端部Ｂ）を基端部として主部２３１の凸となる方向と反対方向にそれぞれ立ち上がる。カバー側壁部２３２は、器具本体１００の凹部１１１の第一の側壁部１１３−１、第二の側壁部１１３−２と略平行に形成されている。また、対になるカバー側壁部２３２の外側の面の距離である寸法Ｌ１（図９）は、図８に示す凹部１１１の巾である寸法Ｌ２（第一の側壁部１１３−１の内側面１１３−１ａと、第二の側壁部１１３−２の内側面１１３−２ａとの短手方向の距離）に対して、器具本体１００の凹部１１１に挿入可能に略同等の寸法に形成される。なお、挿入可能に略同等の寸法とは、光源ユニット２００が凹部１１１との間に形成される隙間をなるべく抑え、挿入できる寸法である。例えば寸法Ｌ１が５９ｍｍに対して寸法Ｌ２が６０ｍｍなどである。つまり、照明器具３００は、器具本体１００に光源ユニット２００が取り付けられた状態において、凹部１１１の短手方向Ｙにおける内側面１１３−１ａと、内側面１１３−２ａとの距離である凹部内側巾寸法Ｌ２から、カバー部２３０の短手方向Ｙにおける一方の先端部２３２ｂの外側面２３２ｃと他方の先端部２３２ｂの外側面２３２ｃとの距離である先端部外側巾寸法Ｌ１（図９）を引いた寸法が、０ｍｍ以上３ｍｍ以下である。つまり、照明器具３００は、器具本体１００に光源ユニット２００が取り付けられた状態において、図８の断面において、左右の各隙間を同じとすれば、各隙間は０ｍｍ以上１．５ｍｍ以下の範囲である。 (Cover side wall 232)
The cover side wall portion 232 is disposed in a pair at both ends (end B) of the main portion 231 and opposite to the direction in which the main portion 231 is convex with the both ends (end B) of the main portion 231 as a base end. Stand up in the direction respectively. The cover side wall portion 232 is formed substantially parallel to the first side wall portion 113-1 and the second side wall portion 113-2 of the recess 111 of the instrument body 100. Further, dimension L1 (FIG. 9) which is the distance of the outer surface of the cover side wall portion 232 to be paired is dimension L2 (the inner side surface 113 of the first side wall portion 113-1) which is the width of the recess 111 shown in FIG. It is formed in a substantially equal size so that it can insert in crevice 111 of instrument main part 100 to -1a and distance of the transverse direction of inner side 113-2a of the 2nd side wall part 113-2. In addition, the dimension which can be inserted substantially and is equivalent is a dimension which can suppress the clearance gap formed between the light source unit 200 and the recessed part 111 as much as possible, and can insert it. For example, the dimension L2 is 60 mm, for example, while the dimension L1 is 59 mm. That is, in the state where the light source unit 200 is attached to the instrument main body 100, the lighting fixture 300 has a recess inner width dimension which is a distance between the inner side surface 113-1a and the inner side surface 113-2a in the short side direction Y of the recess 111. A dimension obtained by subtracting a tip outer width dimension L1 (FIG. 9) which is a distance between the outer surface 232c of one tip end 232b and the outer surface 232c of the other tip end 232b in the short side direction Y of the cover portion 230 from L2. Is 0 mm or more and 3 mm or less. That is, in the state where the light source unit 200 is attached to the main body 100 of the lighting fixture 300, if the left and right gaps are the same in the cross section of FIG. 8, the gaps are in the range of 0 mm to 1.5 mm. .

また、図８に示すように、カバー側壁部２３２は、光源ユニット２００の器具本体１００への取り付けが完了して光源ユニット２００の一部が器具本体１００の凹部１１１に収納された際に、凹部１１１の開口部１１１ａ（図２の矩形ａｂｃｄ）から外側に露出する。器具本体１００への取付完了時に光源ユニット２００の一部が凹部１１１に収納された状態において、各上側支持部２３３が凹部１１１に収納される。 Further, as shown in FIG. 8, the cover side wall portion 232 is a recess when the attachment of the light source unit 200 to the instrument body 100 is completed and a part of the light source unit 200 is stored in the recess 111 of the instrument body 100. It is exposed to the outside from the opening 111a 111 (rectangle abcd in FIG. 2). Each upper support portion 233 is accommodated in the recess 111 in a state in which a part of the light source unit 200 is accommodated in the recess 111 when the attachment to the instrument body 100 is completed.

また、図８に示すように、各カバー側壁部２３２は、少なくとも一部が、発光素子２１２よりもＺ方向に位置する。このため発光素子２１２の発した光を各カバー側壁部２３２で拡散できるので、照明効果が向上する。光源ユニット２００は、各カバー側壁部２３２をつかまれて方向Ｚに引っ張られた場合、凹部１１１から引き出される。 Further, as shown in FIG. 8, at least a portion of each cover side wall portion 232 is positioned in the Z direction relative to the light emitting element 212. Therefore, the light emitted from the light emitting element 212 can be diffused by the cover side wall portions 232, so that the lighting effect is improved. The light source unit 200 is pulled out from the recess 111 when the cover side wall portions 232 are grasped and pulled in the direction Z.

図７に示すように、カバー側壁部２３２の周辺には破線で示す操作空間５００が確保されている。操作空間５００によって、着脱時に容易に光源ユニット２００のカバー側壁部２３２を掴むことができる。 As shown in FIG. 7, an operation space 500 indicated by a broken line is secured around the cover side wall portion 232. By the operation space 500, the cover side wall portion 232 of the light source unit 200 can be easily grasped at the time of attachment and detachment.

（上側支持部２３３）
カバー部２３０は、上側支持部２３３を有する。図９に示すように、上側支持部２３３は、主部２３１の長手方向Ｘに沿う各カバー側壁部２３２の立ち上がりの終わる端部Ａの上方に端部Ａ（終端部）から相手のカバー側壁部２３２の方向に傾斜して形成される傾斜部２３２−１の先端部（終端部）から、対になるように形成される。傾斜部２３２−１は側壁部２３２の端部Ａ（終端部）を基端部として、短手方向における中央部に向って傾斜して立ち上がっており、傾斜した立ち上がりが終わる終端部に上側支持部２３３が繋がっている。上側支持部２３３は、図９に示すように、側壁部２３３ａ，係合部２３３ｂ，反射リブ２３３ｃを備える。
（１）図９に示すように、側壁部２３３ａは傾斜部２３２−１の先端部（終端部）に中心軸と平行な壁形状に形成される。
（２）係合部２３３ｂは、側壁部２３３ａの上端部（終端部）から水平方向に伸びるように形成されて、第一の側壁部２２２−１の上端部と係合する。
（３）反射リブ２３３ｃは、カバー側壁部２３２の外側に形成される。 (Upper support portion 233)
The cover 230 has an upper support 233. As shown in FIG. 9, the upper support portion 233 is located above the end portion A (end portion) above the end portion A where the rising of each cover side wall portion 232 along the longitudinal direction X of the main portion 231 ends. It is formed to be a pair from the tip (end) of the inclined portion 232-1 formed to be inclined in the direction of 232. The inclined portion 232-1 rises with an end A (end portion) of the side wall portion 232 as a base end toward the central portion in the short side direction, and the upper support portion at the end where the inclined rise ends 233 are connected. The upper side support part 233 is provided with the side wall part 233a, the engaging part 233b, and the reflective rib 233c, as shown in FIG.
(1) As shown in FIG. 9, the side wall portion 233a is formed in a wall shape parallel to the central axis at the tip (end) of the inclined portion 232-1.
(2) The engaging portion 233b is formed to extend in the horizontal direction from the upper end portion (terminal end portion) of the side wall portion 233a, and engages with the upper end portion of the first side wall portion 222-1.
(3) The reflective rib 233 c is formed on the outside of the cover side wall portion 232.

（下側支持部２３４）
下側支持部２３４は、下側凸部２３４ａ，下側押圧部２３４ｂを備えている。
（１）図９に示すように、下側凸部２３４ａは、側壁部２３３ａの下端部から他方の側壁部２３３ａの方向に伸びるように形成される。下側凸部２３４ａは発光素子基板２１０が取り付けられる保持部２２０の面２２１ａを覆うＺ方向に凸となる形状である。
（２）下側凸部２３４ａの短手方向Ｙの縁部は、取付部２２１の面２２１ａを押圧する下側押圧部２３４ｂをなす。 (Lower side support part 234)
The lower support portion 234 includes a lower convex portion 234 a and a lower pressing portion 234 b.
(1) As shown in FIG. 9, the lower convex portion 234a is formed to extend in the direction from the lower end portion of the side wall portion 233a to the other side wall portion 233a. The lower convex portion 234 a has a shape that is convex in the Z direction covering the surface 221 a of the holding portion 220 to which the light emitting element substrate 210 is attached.
(2) The edge portion in the short side direction Y of the lower convex portion 234 a forms a lower pressing portion 234 b that presses the surface 221 a of the attachment portion 221.

上側支持部２３３の係合部２３３ｂと、下側支持部２３４の下側押圧部２３４ｂとが、保持部２２０の第一の側面部２２２−１の先端部および取付部２２１を挟持することで、カバー部２３０は保持部２２０に固定される。 The engagement portion 233 b of the upper support portion 233 and the lower pressing portion 234 b of the lower support portion 234 sandwich the tip end portion of the first side surface portion 222-1 of the holding portion 220 and the attachment portion 221. The cover portion 230 is fixed to the holding portion 220.

（器具本体１００）
次に器具本体１００の構成を説明する。図４に示すように、器具本体１００は、凹部１１１、傾斜部１１４−１、１１４−２、蓋部１２０−１，１２０−２を備える。
（１）凹部１１１は長手方向Ｘに沿って略中央に形成される。
（２）斜部１１４−１、１１４−２は、凹部１１１の開口部１１１ａの長手側辺それぞれから被取付部方向へ互いに離れ，広がるように傾斜する。
（３）蓋部１２０−１，１２０−２は、長手方向の両端に配設され、長手方向Ｘの端部において、凹部１１１および傾斜部１１４−１、１１４−２を覆う。
（４）器具本体１００は、バネ部１３０、端子台１４０を備える。バネ部１３０は平板部１１２に配置され、光源ユニット２００に配置された連結金具２５０と連結する。 (Instrument body 100)
Next, the configuration of the tool body 100 will be described. As shown in FIG. 4, the instrument body 100 includes a recess 111, inclined portions 114-1 and 114-2, and lids 120-1 and 120-2.
(1) The recess 111 is formed substantially at the center along the longitudinal direction X.
(2) The inclined portions 114-1 and 114-2 are inclined so as to be separated from each other in the direction of the mounting portion from the respective longitudinal sides of the opening 111a of the recess 111 and to spread.
(3) The lids 120-1 and 120-2 are disposed at both ends in the longitudinal direction, and cover the recess 111 and the inclined portions 114-1 and 114-2 at the end in the longitudinal direction X.
(4) The instrument body 100 includes the spring portion 130 and the terminal block 140. The spring portion 130 is disposed on the flat plate portion 112 and is coupled to the connection fitting 250 disposed on the light source unit 200.

器具本体１００は、凹部１１１を備える。図４に示すように、凹部１１１は、長尺状の平板部１１２と、平板部１１２の長手方向Ｘに沿う一方の平板端部１１２ａと他方の平板端部１１２ｂとからそれぞれ立ち上がる第一の側壁部１１３−１及び第二の側壁部１１３−２とを有する凹形状をなし光源ユニット２００の一部を収納する。平板部１１２は天井などの取付部に当接する。開口部１１１ａの周部には開口縁部１１１ｂ（図８）が配設されている。平板部１１２には、バネ部１３０と端子台１４０が配設されている。また平板部１１２には、商用電源からの電力供給を受ける為の電源線を引き込む電源引込孔１１２ｃと、ボルトなどの取付材により被取付部へ固定する為の固定孔１１２ｄが形成されている。 The instrument body 100 comprises a recess 111. As shown in FIG. 4, the concave portion 111 has a first side wall rising from the elongated flat portion 112 and one flat plate end 112 a and the other flat plate end 112 b along the longitudinal direction X of the flat plate 112. It has a concave shape having a portion 113-1 and a second side wall portion 113-2 and accommodates a part of the light source unit 200. The flat portion 112 abuts on a mounting portion such as a ceiling. An opening edge 111 b (FIG. 8) is disposed around the opening 111 a. The flat portion 112 is provided with a spring portion 130 and a terminal block 140. Further, the flat plate portion 112 is formed with a power lead-in hole 112c for drawing in a power supply line for receiving power supply from a commercial power supply, and a fixing hole 112d for fixing to a mounting portion by a mounting material such as a bolt.

図１０は、主部２３１の厚み変化を説明するための模式的なカバー断面図である。図１１〜図１３は、いずれも、主部２３１の厚み変化を説明するための図である。 FIG. 10 is a schematic cross-sectional view of the cover for explaining the thickness change of the main portion 231. As shown in FIG. 11-13 is a figure for demonstrating the thickness change of the main part 231 in all.

（１）図１０に示すように、カバー部２３０の主部２３１は、両側領域２３６の厚みが、中央領域２３７よりも薄い。この構成により、主部２３１から出射される光の照射を主部２３１の短手方向Ｙにおいて、簡易な構成で均一に近づけることができる。中央領域２３７とは、主部２３１の凸断面形状２３０Ｄの短手方向Ｙにおいて、両側領域２３６に挟まれる領域である。
両側領域２３６は、中央領域２３７の両側に存在する。両側領域２３６は、左側の両側領域２３６は一方の端部２３１ａを含み、右側の両側領域２３６は他方の端部２３１ｂを含む領域である。
（２）図１０は、主部２３１の厚みという構造から、主部２３１から出射される光の照射を主部２３１の短手方向Ｙにおいて簡易な構成で均一に近づける構成であるが、主部２３１は、一方の端部２３１ａと他方の端部２３１ｂとを含む短手方向Ｙの両側領域２３６の光の拡散度が、短手方向Ｙの中央領域２３７よりも小さい構成であればよい。拡散度の調整は、主部２３１の厚み変化に限らず、あるいは厚みの変化に加え、主部２３１の表面加工や、主部２３１を構成する材料の成分構成で拡散度を調整してもよい。
（３）また、主部２３１は拡散度の観点からではなく光の透過率の観点から構成されてもよい。つまり両側領域２３６の光の透過率が中央領域２３７よりも大きい構成でもよい。透過率の場合も、主部２３１の厚みの他、主部２３１の表面加工や、主部２３１を構成する材料の成分構成で拡散度を調整してもよい。拡散度、透過率、厚みのいずれか一つ、あるいはいずれか二つ、あるいは三つ全部によって、簡易な構成で、短手方向Ｙの光の照射の均一化を向上させることができる。 (1) As shown in FIG. 10, in the main portion 231 of the cover portion 230, the thickness of both side regions 236 is thinner than the central region 237. According to this configuration, the irradiation of the light emitted from the main portion 231 can be made to be close uniformly with a simple configuration in the short side direction Y of the main portion 231. The central region 237 is a region sandwiched by the two side regions 236 in the short direction Y of the convex cross-sectional shape 230D of the main portion 231.
Both side areas 236 are present on both sides of the central area 237. In the both side regions 236, the left side region 236 includes one end 231a, and the right side region 236 includes the other end 231b.
(2) FIG. 10 shows the structure of the thickness of the main portion 231, so that the irradiation of light emitted from the main portion 231 is made to approach uniformly with a simple configuration in the short direction Y of the main portion 231. It is sufficient that the light diffusion degree of both side regions 236 in the short direction Y including the one end portion 231 a and the other end portion 231 b is smaller than that of the central region 237 in the short direction Y. The adjustment of the diffusion degree is not limited to the thickness change of the main portion 231, or in addition to the thickness change, the diffusion degree may be adjusted by surface processing of the main portion 231 or the component configuration of the material constituting the main portion 231 .
(3) Also, the main portion 231 may be configured not from the viewpoint of the degree of diffusion but from the viewpoint of light transmittance. That is, the light transmittance of the two side regions 236 may be larger than that of the central region 237. Also in the case of the transmittance, in addition to the thickness of the main portion 231, the degree of diffusion may be adjusted by surface processing of the main portion 231 or the component configuration of the material constituting the main portion 231. It is possible to improve the uniformity of the irradiation of the light in the short direction Y with a simple configuration by any one or any two or all of the diffusivity, the transmittance, and the thickness.

図１１は、主部２３１の厚み変化を説明するための図である。図１１は、図８に相当する断面図である。「相当する」としたのは、図８ではハーネスクランプ２７０が現れている断面であるが図１１では連結金具２５０が現れている断面であるためである。カバー部２３０としては同じ断面である。
（１）図１１では、主部２３１は、凸断面形状２３０Ｄの外側表面２３１−２の曲率半径Ｒ２が、凸断面形状２３０Ｄの内側表面２３１−１の曲率半径Ｒ１と異なる断面図である。図１１の場合、一方の端部２３１ａと他方の端部２３１ｂとの間に挟まれる１点鎖線の上側（曲率半径Ｒ１）と下側（曲率半径Ｒ２）とが、それぞれ主部２３１の内側表面２３１−１と、外側表面２３１−２をなす。図１１では主部２３１の中央領域２３７の厚みが、両側領域２３６の厚みよりも厚い。
（２）図１１に示す主部２３１では、凸断面形状２３０Ｄの外側表面２３１−２の曲率半径Ｒ２が、凸断面形状２３０Ｄの内側表面２３１−１の曲率半径Ｒ１よりも小さい。つまりＲ２＜Ｒ１である。
（３）図１１に示す主部２３１では、凸断面形状２３０Ｄの外側表面２３１−２の曲率中心Ｏ（Ｒ２）が、凸断面形状２３０Ｄの内側表面２３１−１の曲率中心Ｏ（Ｒ１）と異なる位置する。具体的には、曲率中心Ｏ（Ｒ２）は中心軸１１上において、曲率中心Ｏ（Ｒ１）の下側にある。図１１の主部２３１では、両側領域２３６の厚みが、中央領域２３７よりも薄くなるので、主部２３１から出射される光の照射を主部２３１の短手方向Ｙにおいて、均一に近づけることができる。 FIG. 11 is a view for explaining a change in thickness of the main portion 231. As shown in FIG. FIG. 11 is a cross-sectional view corresponding to FIG. The "corresponding" is because in FIG. 8 it is a cross section in which the harness clamp 270 appears but in FIG. 11 it is a cross section in which the connection fitting 250 appears. The cover 230 has the same cross section.
(1) In FIG. 11, the main portion 231 is a cross-sectional view in which the curvature radius R2 of the outer surface 231-2 of the convex cross-sectional shape 230D is different from the curvature radius R1 of the inner surface 231-1 of the convex cross-sectional shape 230D. In the case of FIG. 11, the upper side (curvature radius R1) and the lower side (curvature radius R2) of the alternate long and short dash line sandwiched between one end 231a and the other end 231b are the inner surfaces of the main portion 231, respectively. 231-1 and an outer surface 231-2. In FIG. 11, the thickness of the central region 237 of the main portion 231 is larger than the thickness of the side regions 236.
(2) In the main portion 231 shown in FIG. 11, the curvature radius R2 of the outer surface 231-2 of the convex cross sectional shape 230D is smaller than the curvature radius R1 of the inner surface 231-1 of the convex cross sectional shape 230D. That is, R2 <R1.
(3) In the main portion 231 shown in FIG. 11, the curvature center O (R2) of the outer surface 231-2 of the convex cross-sectional shape 230D is different from the curvature center O (R1) of the inner surface 231-1 of the convex cross-sectional shape 230D To position. Specifically, the center of curvature O (R2) is below the center of curvature O (R1) on the central axis 11. In the main part 231 of FIG. 11, the thickness of both side areas 236 is thinner than that of the central area 237, so that the irradiation of light emitted from the main part 231 can be made uniform in the lateral direction Y of the main part 231. it can.

図１２は、主部２３１の厚み変化を説明するための図である。図１２は、図１１と同じ断面図である。図１２の場合も図１１と同様に、一方の端部２３１ａと他方の端部２３１ｂとの間に挟まれる１点鎖線の上側（曲率半径Ｒ１）と下側（曲率半径Ｒ２）とが、それぞれ主部２３１の内側表面２３１−１と、外側表面２３１−２をなす。図１２の主部２３１は、凸断面形状２３０Ｄの外側表面２３１−２の曲率半径Ｒ２が、凸断面形状２３０Ｄの内側表面２３１−１の曲率半径Ｒ１と同じ長さであり、図示はしていなが曲率半径Ｒ２の曲率中心Ｏ（Ｒ２）は、中心軸１１上において、曲率半径Ｒ１の曲率中心Ｏ（Ｒ１）の下側にある。図１２の主部２３１でも、両側領域２３６の厚みが、中央領域２３７よりも薄くなるので、主部２３１から出射される光の照射を主部２３１の短手方向Ｙにおいて、均一に近づけることができる。 FIG. 12 is a diagram for explaining a change in thickness of the main portion 231. As shown in FIG. FIG. 12 is the same cross-sectional view as FIG. Also in the case of FIG. 12, as in FIG. 11, the upper side (curvature radius R1) and the lower side (curvature radius R2) of the dashed dotted line sandwiched between one end 231a and the other end 231b are respectively The inner surface 231-1 of the main portion 231 forms an outer surface 231-2. In the main portion 231 of FIG. 12, the radius of curvature R2 of the outer surface 231-2 of the convex cross-sectional shape 230D is the same length as the radius of curvature R1 of the inner surface 231-1 of the convex cross-sectional shape 230D The curvature center O (R2) of the curvature radius R2 is below the curvature center O (R1) of the curvature radius R1 on the central axis 11. Even in the main portion 231 of FIG. 12, the thickness of both side regions 236 is thinner than that of the central region 237, so that the irradiation of light emitted from the main portion 231 can be made uniform in the lateral direction Y of the main portion 231 it can.

図１３は、主部２３１の厚み変化を説明するための、さらに別の図である。図１３は、図１１と同じ断面図である。図１３では、前述のように主部２３１は、断面の形状が、カバー側壁部２３２の立ち上がる方向と反対のＺ方向に凸となる凸断面形状２３０Ｄ形状である。主部２３１は、短手方向Ｙを左右方向とした場合に中心軸１１を対象軸とする左右対称の形状となる上記の凸断面形状２３０Ｄをなす。発光素子２１２は、図１３に示す断面において、凸断面形状２３０Ｄの中心軸１１と交わる。主部２３１は、図１３の断面において、中心軸１１が発光素子２１２の発光面２１２Ｓと交わる交点Ｐと、凸断面形状２３０Ｄの内側表面２３１−１との距離Ｌｋ（Ｌ１，Ｌ２等）に応じて、距離Ｌｋをなす内側表面２３１−１の箇所Ｌｐ１，Ｌｐ２における厚みｔｋ（ｋ＝１，２）が変化する。図１３では距離Ｌ１における箇所Ｌｐ１での厚みをｔ１、距離Ｌ２における箇所Ｌｐ２でお厚みをｔ２とすると、ｔ１＞ｔ２である。なお距離Ｌｋをなす箇所Ｌｐｋ（ｋ＝１，２、・・・）における主部２３１の厚みｔｋとは、距離Ｌｋをなす内側表面２３１−１の箇所Ｌｐｋにおける接線に対する直角方向の厚みである。距離Ｌｋは図１４の角度θで決まる長さである。角度θが大きいほど距離Ｌｋは長くなり、距離Ｌｋが長いほど、距離Ｌｋにおける主部２３１の厚みｔｋは薄くなる。よって、図１３の主部２３１でも、両側領域２３６の厚みが、中央領域２３７よりも薄くなるので、主部２３１から出射される光の照射を主部２３１の短手方向Ｙにおいて、均一に近づけることができる。なお、図１１、図１２のＬ１，Ｌ２、θ等も図１３と同じ意味であり、図１４の説明は図１１、図１２にも当てはまる。 FIG. 13 is still another view for explaining the thickness change of the main portion 231. As shown in FIG. FIG. 13 is the same cross-sectional view as FIG. In FIG. 13, as described above, the main portion 231 has a convex cross-sectional shape 230D in which the cross-sectional shape is convex in the Z direction opposite to the rising direction of the cover side wall portion 232. The main portion 231 has the above-described convex cross-sectional shape 230D that is symmetrical in the left-right direction with the central axis 11 as the target axis when the short direction Y is the left-right direction. The light emitting element 212 intersects with the central axis 11 of the convex cross sectional shape 230D in the cross section shown in FIG. The main portion 231 corresponds to the distance Lk (L1, L2, etc.) between the intersection point P where the central axis 11 intersects the light emitting surface 212S of the light emitting element 212 and the inner surface 231-1 of the convex cross sectional shape 230D in the cross section of FIG. Thus, the thickness tk (k = 1, 2) at the points Lp1 and Lp2 of the inner surface 231-1 forming the distance Lk changes. In FIG. 13, assuming that the thickness at the point Lp1 at the distance L1 is t1, and the thickness at the point Lp2 at the distance L2 is t2, t1> t2. The thickness tk of the main portion 231 at the location Lpk (k = 1, 2,...) Forming the distance Lk is the thickness in the direction perpendicular to the tangent at the location Lpk of the inner surface 231-1 forming the distance Lk. The distance Lk is a length determined by the angle θ in FIG. The larger the angle θ, the longer the distance Lk, and the longer the distance Lk, the thinner the thickness tk of the main portion 231 at the distance Lk. Therefore, even in the main portion 231 of FIG. 13, the thickness of the both side regions 236 is thinner than that of the central region 237, so that the irradiation of light emitted from the main portion 231 approaches uniform in the lateral direction Y of the main portion 231. be able to. Note that L1, L2, θ, etc. in FIGS. 11 and 12 have the same meanings as in FIG. 13, and the description in FIG. 14 also applies to FIGS.

（下側支持部２３４の形状）
図９において、中心軸１１の左側にある側壁部２３３ａは、傾斜部２３２−１の立ち上がりの終端部Ｅに形成された上下壁形状部２２３３ａである。上下壁形状部２２３３ａは、終端部ＥにおいてＺ方向の反対方向に延びる壁形状の上側壁形状部２２３３−１と、Ｚ方向に延びる壁形状の下側壁形状部２２３３−２とを有する。中心軸１１の右側にも中心軸１１に対象な上下壁形状部２２３３ａが形成されており、上下壁形状部２２３３ａは一対である。中心軸１１の左の下側壁形状部２２３３−２のＺ向の終端部からは、相手（中心軸１１の右側）の下側壁形状部２２３３−２に向かって延びる下側支持部２３４（延出部）が形成されており、中心軸１１の右側も同じである。そして、カバー側壁部２３２は、相手のカバー側壁部２３２に対向する対向面に接続する部材が存在しない。図９の中心軸１１の右側を例に説明すれば、下側支持部２３４とカバー側壁部２３２のカバー側壁部２３２の対向面との間には、空間２３８が存在する。つまり、下側支持部２３４には二点鎖線で示すような、カバー側壁部２３２と接続する方向に延びる逆向延出部は存在しない。
よって図８に示すように、発光素子２１２から出た光は空間２３８から傾斜部２３２−１へ到達する。よって傾斜部２３２−１と器具本体１００との隙間（図８）が暗部になることを防止できる。 (Shape of lower support 234)
In FIG. 9, a side wall portion 233 a located on the left side of the central axis 11 is an upper and lower wall shaped portion 2233 a formed at the end portion E of the rising of the inclined portion 232-1. The upper and lower wall shaped portion 2233a has a wall shaped upper side wall shaped portion 2233-1 extending in the opposite direction of the Z direction at the end portion E, and a wall shaped lower side wall shaped portion 2233-2 extending in the Z direction. Upper and lower wall-shaped portions 2233a symmetrical to the central axis 11 are also formed on the right side of the central axis 11, and the upper and lower wall-shaped portions 2233a are a pair. From the Z-direction end of the left lower side wall shape portion 2233-2 of the central axis 11, the lower side support portion 234 extending toward the lower side wall shape portion 2233-2 (the right side of the central axis 11) Part) is formed, and the right side of the central axis 11 is also the same. In the cover side wall portion 232, there is no member connected to the opposite surface facing the other cover side wall portion 232. If the right side of the central axis 11 in FIG. 9 is described as an example, a space 238 exists between the lower support 234 and the facing surface of the cover side wall 232 of the cover side wall 232. That is, there is no reverse extending portion extending in the direction of connection with the cover side wall portion 232, as indicated by the two-dot chain line, in the lower support portion 234.
Therefore, as shown in FIG. 8, the light emitted from the light emitting element 212 reaches the inclined portion 232-1 from the space 238. Therefore, it can prevent that the clearance gap (FIG. 8) of the inclination part 232-1 and the instrument main body 100 becomes a dark part.

図８に示すｈ１、図９に示すｈ２、Ｗ、Ｒにより、光源ユニット２００は、次のように寸法を規定することができる。
凸断面形状２３０Ｄは、
条件（１）：ｈ２／ｈ１≧０．３４０、かつ、ｈ１＜Ｒ、
と、
条件（２）：ｈ１／Ｗ≧０．２４５、かつ、ｈ１＜Ｒ、
との２つの条件（１）、条件（２）のうち、いずれかの条件が成立するものとする。
ここで、ｈ１は図８に示す寸法であり、ｈ２、Ｗは図９に示す寸法である。
図８に示す寸法ｈ１は、Ｚ方向（中心軸１１方向）における、発光素子２１２の発光面２１２Ｓと中心軸１１との交点Ｐから、中心軸１１上における主部２３１の外側表面までの距離である。図９に示す寸法ｈ２は、カバー側壁部２３２の端部Ｂと、端部Ｂに対して反対方向（Ｚ方向の反対方向）に位置するカバー側壁部２３２の立ち上がりの終端部である端部Ａとの、中心軸１１方向における距離である。
Ｒは、主部２３１の外側表面の曲率半径であり、曲率中心Ｏ（Ｒ）は中心軸１１上にある。
Ｗは短手方向Ｙにおける、一対のカバー側壁部２３２の立ち上がりのそれぞれの終端部である端部Ａどうし外側距離である。
条件（１）、条件（２）のいずれかの条件が成立することで、カバー側壁部２３２における上方（Ｚ方向と反対向き方向）の照射を増やすことができる。 With h1 shown in FIG. 8 and h2, W, R shown in FIG. 9, the light source unit 200 can define dimensions as follows.
The convex cross-sectional shape 230D is
Condition (1): h2 / h1 ≧ 0.340, and h1 <R,
When,
Condition (2): h1 / W ≧ 0.245 and h1 <R,
It is assumed that one of the two conditions (1) and (2) is satisfied.
Here, h1 is the dimension shown in FIG. 8, and h2 and W are the dimensions shown in FIG.
A dimension h1 shown in FIG. 8 is a distance from an intersection point P of the light emitting surface 212S of the light emitting element 212 to the central axis 11 in the Z direction (direction of the central axis 11) to the outer surface of the main portion 231 on the central axis 11. is there. The dimension h2 shown in FIG. 9 is the end B of the cover side wall 232 and the end A of the rising end of the cover side wall 232 positioned in the opposite direction (opposite direction Z) to the end B. And the distance in the central axis 11 direction.
R is the radius of curvature of the outer surface of the main portion 231, and the center of curvature O (R) is on the central axis 11.
W is an outer distance between the end portions A which are the end portions of the rising of the pair of cover side wall portions 232 in the short direction Y.
By satisfying one of the condition (1) and the condition (2), the irradiation of the upper side (the direction opposite to the Z direction) of the cover side wall portion 232 can be increased.

図６、図８、図９に示すように、カバー部２３０は反射リブ２３３ｃ（リブ部）を有する。反射リブ２３３ｃは、上側壁形状部２２３３−１から長手方向Ｘにわたり相手の上側壁形状部２２３３−１の方向と反対方向に突き出している。
反射リブ２３３ｃをカバー部２３０に設け、カバー部２３０を出た光を反射リブ２３３ｃで反射させることで、カバー部２３０と器具本体１００との隙間（図８）が長手方向Ｘにわたり「暗部すじ」になることを低減できる。よって照明器具３００の意匠性を向上できる。一対の傾斜部２３２−１、一対のカバー側壁部２３２及び主部２３１は乳白色とし、一対の反射リブ２３３ｃ及び内側面１１３−２ａ，１１３−１ａは白色とする。また、一対の傾斜部２３２−１、一対のカバー側壁部２３２及び主部２３１は光透過性と光拡散性を有し、一対の反射リブ２３３ｃ及び内側面１１３−２ａ，１１３−１ａは高い反射特性を有する。なお、この実施の形態では反射リブ２３３ｃは一対の上側壁形状部２２３３−１の両方に形成されているが、反射リブ２３３ｃは、一対の上側壁形状部２２３３−１のうちの少なくとも一方に形成されることでもよい。そして、一対の傾斜部２３２−１は白色として高い反射特性を有するようにしてもよい。反射リブ２３３ｃは反射材料で形成される。 As shown in FIGS. 6, 8 and 9, the cover portion 230 has a reflective rib 233 c (rib portion). The reflective rib 233c protrudes from the upper side wall shape portion 2233-1 in the longitudinal direction X in a direction opposite to the direction of the other upper side wall shape portion 2233-1.
By providing the reflection rib 233c in the cover portion 230 and reflecting the light emitted from the cover portion 230 by the reflection rib 233c, the gap between the cover portion 230 and the instrument main body 100 (FIG. 8) Can be reduced. Thus, the design of the lighting device 300 can be improved. The pair of inclined portions 232-1, the pair of cover side wall portions 232 and the main portion 231 are milky white, and the pair of reflective ribs 233c and the inner side surfaces 113-2a and 113-1 a are white. In addition, the pair of inclined portions 232-1, the pair of cover side wall portions 232, and the main portion 231 have light transparency and light diffusivity, and the pair of reflection ribs 233c and the inner side surfaces 113-2a and 113-1a have high reflection. It has a characteristic. In this embodiment, the reflective rib 233c is formed on both of the pair of upper side wall shaped portions 2233-1. However, the reflective rib 233c is formed on at least one of the pair of upper side wall shaped portions 2233-1. It may be done. The pair of inclined portions 232-1 may have high reflection characteristics as white. The reflective rib 233c is formed of a reflective material.

図８、図９に示すように、一対のカバー側壁部２３２は、相手のカバー側壁部２３２に向かって凹形状に凹んでいる。つまり図８の中心軸１１の左側のカバー側壁部２３２に着目すれば、このカバー側壁部２３２は端部Ａ，端部ＢをＺ方向の両端として、中心軸１１右側のカバー側壁部２３２に向かって凹む形状である。
このように、カバー部２３０は、一対のカバー側壁部２３２が相手のカバー側壁部２３２に向かって凹形状に凹む形状である。よって、この凹形状を作業者がつかむことで、器具本体１００への光源ユニット２００の取付時の作業性、器具本体１００からの光源ユニット２００の取り外し時の作業性が向上する。
カバー側壁部２３２の凹形状に関する寸法は、次のように規定することができる。
カバー側壁部２３２の凹形状は、例えば、
条件（３）：Ｄ≦５ｍｍ、
を基本とし、
条件（４）：ｈ２／Ｗ≧０．０９、かつ、Ｒ２≦５ｍｍ、
または、
条件（５）：ｈ２／Ｗ≧０．０９、かつ、Ｒ２≧５ｍｍ、
と規定することができる。ｈ２，Ｄ，Ｗ，Ｒ２は、いずれも図９に示す寸法である。図９に示すように、寸法ｈ２は、カバー側壁部２３２の端部Ｂと、端部Ｂに対して反対方向（反Ｚ方向）に位置するカバー側壁部２３２の立ち上がりの終端部である端部Ａとの、中心軸１１方向における距離である。Ｄは前記カバー側壁部の凹形状の最大の深さである。Ｒ２は、カバー側壁部２３２の外側表面の曲率半径である。またＷは短手方向Ｙにおける、一対のカバー側壁部２３２の立ち上がりのそれぞれの終端部である端部Ａどうしの外側距離である。
上述した凹形状に関する寸法は、器具本体１００への光源ユニット２００の取付時の作業性と器具本体１００からの光源ユニット２００の取り外し時の作業性を考慮して規定されており、具体的には凹形状をつかむ作業者の手指の形状と寸法を考慮した寸法である。そして、条件（４）、条件（５）のいずれの条件を選択するかについては、器具本体１００に光源ユニット２００を取り付ける取付強度を考慮する。
さらに、カバー側壁部２３２は、端部Ａ，端部ＢをＲ２より小さい曲面形状として、作業時に指先に加わるストレスを緩和することが好ましい。 As shown in FIGS. 8 and 9, the pair of cover side wall portions 232 is recessed in a concave shape toward the other cover side wall portion 232. That is, focusing on the cover side wall portion 232 on the left side of the central axis 11 in FIG. 8, the cover side wall portion 232 faces the cover side wall portion 232 on the right side of the central axis 11 with the end A and the end B as both ends in the Z direction. It has a concave shape.
As described above, the cover portion 230 has a shape in which the pair of cover side wall portions 232 is recessed toward the other cover side wall portion 232 in a concave shape. Therefore, when the operator grasps the concave shape, the workability when attaching the light source unit 200 to the instrument body 100 and the workability when removing the light source unit 200 from the instrument body 100 are improved.
The dimension regarding the concave shape of the cover side wall part 232 can be defined as follows.
The concave shape of the cover side wall portion 232 is, for example,
Condition (3): D ≦ 5 mm,
Based on
Condition (4): h2 / W ≧ 0.09 and R2 ≦ 5 mm,
Or
Condition (5): h2 / W ≧ 0.09, and R2 ≧ 5 mm,
It can be defined as h2, D, W and R2 are all the dimensions shown in FIG. As shown in FIG. 9, the dimension h2 is an end B of the cover side wall 232 and an end which is a rising end of the cover side wall 232 positioned in the opposite direction (anti-Z direction) to the end B A distance between A and the central axis 11 direction. D is the maximum depth of the concave shape of the cover side wall. R2 is the radius of curvature of the outer surface of the cover sidewall 232. Further, W is an outer distance between the end portions A which are the respective end portions of rising of the pair of cover side wall portions 232 in the short direction Y.
The dimensions relating to the concave shape described above are defined in consideration of the workability when attaching the light source unit 200 to the instrument main body 100 and the workability when removing the light source unit 200 from the instrument main body 100. It is a size in consideration of the shape and size of the operator's finger grasping the concave shape. Then, with regard to which one of the condition (4) and the condition (5) is selected, the attachment strength for attaching the light source unit 200 to the instrument body 100 is considered.
Furthermore, it is preferable that the cover side wall part 232 make the end A and the end B a curved surface shape smaller than R 2 to relieve the stress applied to the fingertip at the time of operation.

図８、図９に示すように、係合部２３３ｂの下方で、上下壁形状部２２３３ａに傾斜部２３２−１が接続するので、カバー部２３０が保持部２２０に装着状態では、カバー部２３０が保持部２２０からより脱落しにくくなる。
図８、図９に示す断面における傾斜部２３２−１が立ち上がる方向と、上側壁形状部２２３３−１とのなす角θ１は鈍角である（θ１＞９０°）。また、図８、図９に示す断面における傾斜部２３２−１が立ち上がる方向と、下側壁形状部２２３３−２とのなす角θ２は鋭角である（θ２＜９０°）。このため、カバー部２３０が保持部２２０からより脱落しにくくなるという効果とともに、上下壁形状部２２３３ａと傾斜部２３２−１との接続箇所の破壊のおそれを低減できる。そして、器具本体１００から光源ユニット２００の取り外しを行う際に、カバー部２３０が保持部２２０から外れてしまったり、カバー部２３０を破損させてしまったりするおそれが少ないため、器具本体１００から光源ユニット２００の取り外しを行う際の作業性が向上する。
なお、上側壁形状部２２３３−１と傾斜部２３２−１の終端部（端部Ａ）との接続箇所は、成形性などを考慮して直角、鈍角、鋭角のいずれかを選択できる。 As shown in FIGS. 8 and 9, the inclined portion 232-1 is connected to the upper and lower wall shape portion 2233a below the engaging portion 233b, so the cover portion 230 is attached to the holding portion 220 when the cover portion 230 is attached. It becomes more difficult for the holder 220 to fall off.
The angle θ1 formed by the direction in which the inclined portion 232-1 rises in the cross section shown in FIGS. 8 and 9 and the upper side wall shape portion 2233-1 is an obtuse angle (θ1> 90 °). Further, an angle θ2 between the rising direction of the inclined portion 232-1 and the lower side wall shape portion 2233-2 in the cross sections shown in FIGS. 8 and 9 is an acute angle (θ2 <90 °). For this reason, with the effect that the cover portion 230 is more difficult to come off from the holding portion 220, it is possible to reduce the possibility of breakage of the connection portion between the upper and lower wall shape portion 2233a and the inclined portion 232-1. Then, when the light source unit 200 is removed from the tool body 100, there is little possibility that the cover portion 230 may be detached from the holding portion 220 or the cover portion 230 may be damaged. The workability when removing 200 is improved.
In addition, the connection location of the upper side wall shape part 2233-1 and the termination | terminus part (end part A) of the inclination part 232-1 can select any one of right angle, an obtuse angle, and an acute angle in consideration of a moldability etc.

実施の形態２．
実施の形態２では、主に、実施の形態１と異なる点について説明する。実施の形態２は、実施の形態１で説明した照明器具３００の６つのバリエーションである３００−１，３００−２，３００−３，３００−４，３００−５，３００−６について説明する。６つのバリエーションを照明器具３００−１〜照明器具３００−６と記す。実施の形態２において、実施の形態１と同様の構成部については同一の符号を付し、その説明を省略する。 Second Embodiment
In the second embodiment, points different from the first embodiment will be mainly described. The second embodiment will explain 300-1, 300-2, 300-3, 300-4, 300-5, and 300-6, which are six variations of the lighting apparatus 300 described in the first embodiment. Six variations are described as lighting fixtures 300-1 to 300-6. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

実施の形態２に係る照明器具３００−１〜３００−６では、実施の形態１で説明した光源ユニット２００と同一の光源ユニットを備える。照明器具３００−１〜３００−６が実施の形態１と異なる点は、器具本体２００−ｋ（ｋは１〜６）の形状である。ただし、器具本体１００−ｋの凹部１１１の構成は、実施の形態１で説明した凹部１１１の構成と同一である。よって、光源ユニット２００と凹部１１１との取付構造は、実施の形態１で説明した取付構造と同一であり、実施の形態１で説明した構成及び効果は実施の形態２の照明器具３００−１〜３００−６についても適用することができる。 Lighting fixtures 300-1 to 300-6 according to the second embodiment include the same light source unit as the light source unit 200 described in the first embodiment. The lighting devices 300-1 to 300-6 differ from the first embodiment in the shape of the device main body 200-k (k is 1 to 6). However, the configuration of the recess 111 of the instrument body 100-k is the same as the configuration of the recess 111 described in the first embodiment. Therefore, the mounting structure of the light source unit 200 and the recess 111 is the same as the mounting structure described in the first embodiment, and the configuration and the effects described in the first embodiment are the lighting fixtures 300-1 to 300-1 of the second embodiment. The same applies to 300-6.

実施の形態１で説明した照明器具３００は、図７に示す器具本体１００の上面を天井面等の取付部に直付けする直付けタイプの照明器具である。図７の器具本体１００の短手方向の幅Ｌ（０）は、例えば、１５０ｍｍである。また、照明器具１０の傾斜部水平面から角度θ傾斜している。 The luminaire 300 described in the first embodiment is a direct attachment type luminaire in which the top surface of the instrument main body 100 shown in FIG. 7 is directly attached to a mounting portion such as a ceiling surface. The width L (0) in the short direction of the tool body 100 of FIG. 7 is, for example, 150 mm. Further, the inclined portion of the lighting apparatus 10 is inclined at an angle θ from the horizontal surface.

（バリエーション１）
図１４は、照明器具３００−１の斜視図である。図１５は、図１４のＢ−Ｂ断面図である。照明器具３００−１は、直付けタイプである。照明器具３００−１は、器具本体１００−１の形状が器具本体１００と異なる。照明器具３００−１の短手方向の幅Ｌ（１）は照明器具３００の短手方向の幅Ｌ（０）の１．４〜１．７倍である。照明器具３００−１の短手方向の幅Ｌ（１）は、例えば、２３０ｍｍである。照明器具３００−１の傾斜部の水平面からの角度θは、図７の角度θよりも小さい。 (Variation 1)
FIG. 14 is a perspective view of the lighting fixture 300-1. FIG. 15 is a cross-sectional view taken along line B-B of FIG. The lighting fixture 300-1 is a direct attachment type. The lighting fixture 300-1 differs from the fixture main body 100 in the shape of the fixture main body 100-1. The width L (1) in the short direction of the lighting fixture 300-1 is 1.4 to 1.7 times the width L (0) in the short direction of the lighting fixture 300. The width L (1) in the short direction of the lighting fixture 300-1 is, for example, 230 mm. The angle θ from the horizontal surface of the inclined portion of the lighting fixture 300-1 is smaller than the angle θ in FIG. 7.

（バリエーション２）
図１６は、照明器具３００−２の斜視図である。図１７は図１６のＢ−Ｂ断面図である。
照明器具３００−２は、直付けタイプである。照明器具３００−２は、器具本体１００−２の形状が照明器具３００の器具本体１００と異なる。照明器具３００−２は、器具本体１００−２が光を反射させる構成を備えていないトラフタイプの照明器具である。 (Variation 2)
FIG. 16 is a perspective view of the lighting fixture 300-2. FIG. 17 is a cross-sectional view taken along line B-B of FIG.
The lighting fixture 300-2 is a direct attachment type. The lighting fixture 300-2 differs from the lighting fixture body 100 of the lighting fixture 300 in the shape of the lighting fixture body 100-2. The luminaire 300-2 is a trough-type luminaire in which the device body 100-2 does not have a configuration for reflecting light.

（バリエーション３）
図１８は、照明器具３００−３の斜視図である。図１９は図１８のＢ−Ｂ断面図である。照明器具３００−３は、直付けタイプである。照明器具３００−３は、器具本体１００−３の形状が照明器具３００の器具本体１００と異なる。照明器具３００−３は、器具本体１００−３の傾斜部が凹部１１１の下方に向かって広がるように形成された反射笠タイプの照明器具である。 (Variation 3)
FIG. 18 is a perspective view of the lighting fixture 300-3. FIG. 19 is a cross-sectional view taken along the line B-B of FIG. The lighting fixture 300-3 is a direct attachment type. The lighting fixture 300-3 differs from the lighting fixture body 100 of the lighting fixture 300 in the shape of the lighting fixture body 100-3. The luminaire 300-3 is a reflective wedge-type luminaire in which the sloped portion of the device body 100-3 is formed so as to extend downward from the recess 111.

（バリエーション４）
図２０は、照明器具３００−４の斜視図である。図２１は、図２０のＢ−Ｂ断面図である。照明器具３００−４は、天井面等の取付部に形成された取付孔に埋め込まれて取り付けられる埋込タイプの照明器具である。照明器具３００−４は、器具本体１００−４の形状が照明器具１０の器具本体１００と異なる。照明器具３００−４の短手方向の幅Ｌ（４）は、例えば１５０ｍｍである。 (Variation 4)
FIG. 20 is a perspective view of the lighting fixture 300-4. FIG. 21 is a cross-sectional view taken along line B-B of FIG. The lighting fixture 300-4 is an embedded-type lighting fixture that is embedded in and attached to a mounting hole formed in a mounting portion such as a ceiling surface. The lighting fixture 300-4 differs from the lighting fixture 100 of the lighting fixture 10 in the shape of the fixture main body 100-4. The width L (4) in the short direction of the lighting fixture 300-4 is, for example, 150 mm.

（バリエーション５）
図２２は、照明器具３００−５の斜視図である。図２３は、図２２のＢ−Ｂ断面図である。照明器具３００−５は、埋込タイプの照明器具である。照明器具３００−５は、器具本体１００−５の形状が照明器具３００の器具本体１００と異なる。照明器具３００−５の短手方向の幅Ｌ（５）は、器具本体１００−４の短手方向の幅Ｌ（４）の０．６〜０．７倍である。照明器具３００−５の短手方向の幅Ｌ（５）は、例えば、１００ｍｍである。 (Variation 5)
FIG. 22 is a perspective view of the lighting fixture 300-5. FIG. 23 is a cross-sectional view taken along the line B-B of FIG. The luminaire 300-5 is an embedded type luminaire. The lighting fixture 300-5 differs in the shape of the lighting fixture body 100-5 from the lighting fixture body 100 of the lighting fixture 300. The width L (5) in the short direction of the lighting fixture 300-5 is 0.6 to 0.7 times the width L (4) in the short direction of the fixture body 100-4. The width L (5) in the short direction of the lighting fixture 300-5 is, for example, 100 mm.

（バリエーション６）
図２４は、照明器具３００−６の斜視図である。図２５は、図２４のＢ−Ｂ断面図である。照明器具３００−６は、埋込タイプの照明器具である。照明器具３００−６は、器具本体１００−６の形状が照明器具３００の器具本体１００と異なる。照明器具３００−６は、Ｃチャンネル回避型の照明器具である。照明器具３００−６は、埋め込まれる器具本体１００−６の高さＨ（６）が、図２１に示す器具本体１００−４の高さＨ（４）や図２３に示す器具本体１００−５の高さＨ（５）よりも低い。照明器具３００−６の短手方向の幅Ｌ（６）は、照明器具３００−５の短手方向の幅Ｌ（５）の１．８〜２．２倍である。照明器具３００−６の短手方向の幅Ｌ（６）は、例えば、２２０ｍｍである。 (Variation 6)
FIG. 24 is a perspective view of the lighting fixture 300-6. 25 is a cross-sectional view taken along the line B-B of FIG. The luminaire 300-6 is an embedded type luminaire. The lighting fixture 300-6 differs from the lighting fixture body 100 of the lighting fixture 300 in the shape of the lighting fixture body 100-6. The lighting fixture 300-6 is a C-channel avoidance lighting fixture. In the lighting fixture 300-6, the height H (6) of the fixture body 100-6 to be embedded is the height H (4) of the fixture body 100-4 shown in FIG. 21 or the fixture body 100-5 shown in FIG. Less than height H (5). The width L (6) in the short direction of the lighting fixture 300-6 is 1.8 to 2.2 times the width L (5) in the short direction of the lighting fixture 300-5. The width L (6) in the short direction of the lighting fixture 300-6 is, for example, 220 mm.

上述したように、光源ユニット２００と凹部１１１との取付構造は、実施の形態１で説明した取付構造と同一である。よって実施の形態１で説明した構成及び効果は実施の形態２の照明器具３００−１〜３００−６についても当てはまる。
なお、上述した光源ユニット、器具本体、および照明器具は、いずれも長手形状の例であるが、これ限らず、正方形、円形、多角形など他の形状であっても本願発明が適用できる。 As described above, the mounting structure of the light source unit 200 and the recess 111 is the same as the mounting structure described in the first embodiment. Therefore, the configurations and effects described in the first embodiment apply to the luminaires 300-1 to 300-6 of the second embodiment.
The light source unit, the fixture body, and the lighting fixture described above are all examples of a longitudinal shape, but the present invention is not limited thereto, and the present invention can be applied to other shapes such as a square, a circle, and a polygon.

Ｘ長手方向、Ｙ短手方向、Ｐ交点、Ｒ１，Ｒ２曲率半径、Ｏ（Ｒ１），Ｏ（Ｒ２）曲率中心、１１中心軸、１００器具本体、１１１凹部、１１１ａ開口部、１１１ｂ開口縁部、１１２平板部、１１２ａ一方の平板端部、１１２ｂ他方の平板端部、１１２ｃ電源引込孔、１１２ｄ固定孔、１１３−１第一の側壁部、１１３−２第二の側壁部、１１３−１ａ内側面、１１３−２ａ内側面、１１４−１，１１４−２傾斜部、１２０−１，１２０−２蓋部、１３０バネ部、３１バネ固定部、１４０端子台、２００光源ユニット、２１０発光素子基板、２１１基板、２１１ａ実装面、２１２発光素子、２１２Ｓ発光面、２２０保持部、２２１取付部、２２１ａ取付面、２２１ｂ面、２２２−１第一の側面部、２２２−２第二の側面部、２２９貫通孔、２３０カバー部、２３０ａカバー本体部、２３０Ｄ凸断面形状、２３１主部、２３１−１内側表面、２３１−２外側表面、２３１ａ一方の端部、２３１ｂ他方の端部、２３２カバー側壁部、２３２−１傾斜部、２３３上側支持部、２３３ａ側壁部、２３３ｂ係合部、２３３ｃ反射リブ、２３４下側支持部、２３４ａ下側凸部、２３４ｂ下側押圧部、２３５変形許容空間、２３６両側領域、２３７中央領域、２４０光源蓋部、２５０連結金具、２６０電源装置、２７０ハーネスクランプ、３００照明器具、５００操作空間。 X longitudinal direction, Y short side direction, P intersection point, R1, R2 radius of curvature, O (R1), O (R2) center of curvature, 11 central axis, 100 instrument body, 111 recess, 111a opening, 111b opening edge, 112 flat plate portion 112a one flat plate end 112b other flat plate end 112c power lead-in hole 112 d fixing hole 113-1 first side wall 113-2 second side wall 113-1a inner side , 113-2a inner side surface, 114-1, 114-2 inclined portion, 120-1, 120-2 lid portion, 130 spring portion, 31 spring fixing portion, 140 terminal block, 200 light source unit, 210 light emitting element substrate, 211 Substrate, 211a mounting surface, 212 light emitting element, 212S light emitting surface, 220 holding portion, 221 mounting portion, 221a mounting surface, 221b surface, 222-1 first side Surface portion, 222-2 second side surface portion, 229 through hole, 230 cover portion, 230a cover main body portion, 230D convex sectional shape, 231 main portion, 231-1 inner surface, 231-2 outer surface, 231a one end portion , 231b other end, 232 cover side wall, 232-1 inclined portion, 233 upper support portion, 233a side wall portion, 233b engagement portion, 233c reflective rib, 234 lower support portion, 234a lower convex portion, 234b lower Side pressing part, 235 deformation allowance space, 236 both side area, 237 central area, 240 light source cover part, 250 connecting bracket, 260 power supply unit, 270 harness clamp, 300 lighting fixtures, 500 operation space.

Claims

A light-transmissive main portion having a diffusivity and a convex cross-sectional shape, which has a longitudinal shape covering a light emitting element substrate on which a light emitting element as a light source is mounted, and a cross section whose longitudinal direction is a normal direction is convex. ,
A diffusive property which rises along the longitudinal direction of the main part, in the opposite direction to the convex direction, with one end and the other end serving as both ends in the lateral direction of the main part as the base end A pair of translucent cover side wall portions having
A pair of sloped portions which rise toward the central portion in the short direction with the end portions of the pair of cover side wall portions as the base end portions;
A pair of end portions of the pair of inclined portions, the end portions including a wall-shaped upper side wall-shaped portion extending in the opposite direction and a wall-shaped lower side wall-shaped portion extending in the convex direction Upper and lower wall shape parts,
A pair of engagement portions formed at the end of the upper side wall-shaped portion of each of the pair of upper and lower wall-shaped portions;
And a pair of extending portions extending toward the central portion from the end portion in the convex direction of the lower side wall shaped portion of each of the pair of upper and lower wall shaped portions ,
The pair of extension portions are
It is formed on the lower convex part which becomes convex in the direction which becomes the above-mentioned convex, and the edge of the lower convex part in the direction which goes to the central part in the transverse direction, and presses the attaching part to which the light emitting element substrate is attached And a light source cover having a lower pressing portion .

The pair of extension portions are
The light source cover according to claim 1, wherein the light source cover is formed of a reflective material that reflects light.

The pair of inclined portions is
The light source cover according to claim 1, wherein the light source cover is formed of a translucent material that transmits light.

The pair of inclined portions is
The light source cover according to claim 1, wherein the light source cover is formed of a reflective material that reflects light.

A light source cover according to any one of claims 1 to 4;
A light source unit comprising: a holding portion having a pair of holding and engaging portions engaged with the pair of engaging portions.

The light source unit according to claim 5;
And a fixture body to which the light source unit is attached.

A light emitting element substrate on which a light emitting element is mounted on a mounting surface of the substrate having a longitudinal shape;
The light emitting element substrate is attached to a mounting surface which is one surface in a state of forming a long flat plate and aligning the longitudinal direction of the substrate in the longitudinal direction of the substrate with the longitudinal direction of the flat plate. Mounting part,
And a cover portion covering the light emitting element substrate.
The cover portion is
A light-transmissive main portion having a diffusivity that has a longitudinal cross-sectional shape in which the cross-sectional shape having a longitudinal shape covering the light emitting element substrate and having a longitudinal direction as a normal direction is convex;
A diffusive property which rises along the longitudinal direction of the main part, in the opposite direction to the convex direction, with one end and the other end serving as both ends in the lateral direction of the main part as the base end A pair of translucent cover side wall portions having
And a pair of inclined portions rising in an inclined manner toward the central portion in the short direction with the end portions of the pair of cover side wall portions as the base end portions,
The pair of cover side wall portions are
Recessed towards the other side wall of the cover,
The convex cross-sectional shape is
(1) h2 / h1 ≧ 0.340 and h1 <R,
When,
(2) h1 / W ≧ 0.245 and h1 <R,
Of the two conditions of, one of the conditions is satisfied,
here,
h1: the distance from the light emitting surface of the light emitting element to the outer surface of the main portion in the opposite direction,
h2: the distance in the opposite direction between the one end of the cover side wall and the rising end of the cover side wall located in the opposite direction with respect to the one end,
R: the radius of curvature of the outer surface of the main portion,
W; the outer distance of each end of the rising of the pair of cover side walls in the lateral direction,
Der is,
The main part is
A light source unit , wherein a thickness of two side regions of one and the other in the short direction of the cross section is thinner than a thickness of a central region sandwiched between the two side regions .

A lighting fixture comprising the light source unit according to claim 7.

A light-transmissive main portion having a diffusivity and a convex cross-sectional shape, which has a longitudinal shape covering a light emitting element substrate on which a light emitting element as a light source is mounted, and a cross section whose longitudinal direction is a normal direction is convex. ,
A diffusive property which rises along the longitudinal direction of the main part, in the opposite direction to the convex direction, with one end and the other end serving as both ends in the lateral direction of the main part as the base end A pair of translucent cover side wall portions having
A pair of sloped portions which rise toward the central portion in the short direction with the end portions of the pair of cover side wall portions as the base end portions;
A pair of wall-shaped upper wall-shaped portions formed at respective end portions of the pair of inclined portions and extending in the opposite direction at the end portions;
A rib portion protruding in a direction opposite to the central portion in the longitudinal direction from at least one of the upper side wall shape portions of the pair of upper side wall shape portions;
A light source cover comprising: a pair of engaging portions formed at the end of each of the pair of upper side wall shape portions.

The rib portion is
The light source cover according to claim 9, wherein the light source cover is formed of a reflective material that reflects light.

A light source cover according to claim 9 or 10;
A light source unit comprising: a holding portion having a pair of holding and engaging portions engaged with the pair of engaging portions.

The light source unit according to claim 11;
And a fixture body to which the light source unit is attached.