JP2016207589A

JP2016207589A - Light source cover, light source unit, and lighting fixture

Info

Publication number: JP2016207589A
Application number: JP2015090988A
Authority: JP
Inventors: 博文池谷; Hirobumi Iketani; 公史齋藤; Koji Saito; 坂本　哲也; Tetsuya Sakamoto; 哲也坂本
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2015-04-28
Filing date: 2015-04-28
Publication date: 2016-12-08
Anticipated expiration: 2035-04-28
Also published as: JP6628977B2

Abstract

PROBLEM TO BE SOLVED: To provide a cover structure of a light source cover hardly separating from a mounting member in a long light source unit.SOLUTION: In a cover portion 230, an inclined portion 232-1 is connected to a vertical wall shape portion 2233a at a lower part of an engagement portion 233b. Thus in a state that the cover portion 230 is mounted on a holding portion 220, the cover portion 230 hardly falls from the holding portion 220. An angle θ2 between the inclined portion 232-1 and an upper wall shape portion 2233-1 is an obtuse angle. Thus the effect that the cover portion 230 hardly falls from the holding portion 220, can be achieved, and a risk of breakage of a connection part of the vertical wall shape portion 2233a and the inclined portion 232-1 can be reduced.SELECTED DRAWING: Figure 9

Description

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

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（例えば特許文献１）。 2. Description of the Related Art Conventionally, there is provided a lighting fixture that includes a long light source unit that incorporates an LED module and a DC power supply unit, and an appliance main body unit that has a recess into which a part of the light source unit is inserted. There is a lighting fixture that can be detachably attached to the device (for example, Patent Document 1).

従来の照明器具では、ライトユニットのカバー部材が、取付部材に取り付けられる。 In the conventional lighting fixture, the cover member of the light unit is attached to the attachment member.

従来の照明器具の中にはカバー部材が取付部材に取り付けられた状態において、カバー部材の取り外しを意図しない場合に、カバー部材が取付部材から外れやすいという課題があった。 In the conventional lighting fixture, when the cover member is attached to the attachment member, there is a problem that the cover member is easily detached from the attachment member when the cover member is not intended to be removed.

特許第５６５２０１５号公報Japanese Patent No. 5652015

この発明は、取付部材から外れにくいカバー構造の提供を目的とする。 An object of this invention is to provide the cover structure which is hard to remove | deviate from an attachment member.

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本体部と、
前記本体部の前記凸となる方向と反対方向の終端部を基端部として前記本体部の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
を備える。 The light source cover of this invention is
A light-transmitting main body having a diffusive 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 has a convex cross-sectional shape in which the cross-sectional shape with the longitudinal direction as a normal direction is convex; ,
A pair of inclined portions that rise up with an inclination toward a central portion in a short direction of the main body portion, with a terminal portion opposite to the convex direction of the main body portion as a base end portion;
A pair of wall-shaped upper and lower wall-shaped portions extending in the opposite direction at the terminal portions and a wall-shaped lower wall-shaped portion extending in the convex direction at the terminal portions of the pair of inclined portions. Upper and lower wall shape parts;
And a pair of engaging portions formed at the end portions of the upper wall shape portions of the pair of upper and lower wall shape portions.

本発明の光源カバーによれば、取付部材から外れにくいカバー構造を提供できる。 According to the light source cover of the present invention, it is possible to provide a cover structure that does not easily come off the mounting member.

実施の形態１の図で、照明器具３００の斜視図。FIG. 3 is a perspective view of the lighting apparatus 300 in the first embodiment. 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。In the figure of Embodiment 1, the disassembled perspective view which decomposed | disassembled the lighting fixture 300 into the fixture main body 100 and the light source unit 200. FIG. 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. 3 is a perspective view of the light source unit 200 showing the power supply device 260 side in the diagram of the first embodiment. 実施の形態１の図で、器具本体１００の分解斜視図。FIG. 3 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. 3 is a diagram of the first embodiment, and is a perspective view of the instrument body 100. 実施の形態１の図で、光源ユニット２００の分解斜視図。FIG. 4 is an exploded perspective view of the light source unit 200 in the first embodiment. 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. 4 is a cross-sectional view taken along the line AA of the light source unit 200 in the cross-section AA shown in FIG. 3 according to the first embodiment. 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。FIG. 5 is a cross-sectional view of the light source unit 200 corresponding to the cross-section AA shown in FIG. 実施の形態１の図で、カバー部２３０の断面図。FIG. 3 is a diagram of the first embodiment, and is a cross-sectional view of a cover unit 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。FIG. 5 is a schematic cross-sectional view of the cover for explaining the thickness change of the main portion 231 in the view of the first embodiment. 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。FIG. 5 is a diagram for explaining a thickness change of a main part 231 in the first embodiment. 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。FIG. 4 is another diagram for explaining the thickness change of the main portion 231 in the diagram of the first embodiment. 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。FIG. 5 is another view for explaining the thickness change of the main portion 231 in the diagram of the first embodiment. 実施の形態２の図で、照明器具３００−１の斜視図。In the figure of Embodiment 2, it is a perspective view of the 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。In the figure of Embodiment 2, it is a perspective view of the lighting fixture 300-2. 図１７のＢ−Ｂ断面図。BB sectional drawing of FIG. 実施の形態２の図で、照明器具３００−３の斜視図。In the figure of Embodiment 2, it is a perspective view of the lighting fixture 300-3. 図１９のＢ−Ｂ断面図。BB sectional drawing of FIG. 実施の形態２の図で、照明器具３００−４の斜視図。In the figure of Embodiment 2, it is a perspective view of the lighting fixture 300-4. 図２１のＢ−Ｂ断面図。BB sectional drawing of FIG. 実施の形態２の図で、照明器具３００−５の斜視図。In the figure of Embodiment 2, it is a perspective view of the lighting fixture 300-5. 図２３のＢ−Ｂ断面図。BB sectional drawing of FIG. 実施の形態２の図で、照明器具３００−６の斜視図。In the figure of Embodiment 2, it is a perspective view of the lighting fixture 300-6. 図２５のＢ−Ｂ断面図。BB sectional drawing of FIG.

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.
FIG. 1 is a perspective view of a lighting fixture 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 main body 110. FIG. 5 is a perspective view of the instrument body 100. FIG. 6 is an exploded perspective view of basic components constituting the light source unit 200. FIG. 7 is a cross-sectional view of the light source unit 200 taken along the line AA in FIG. FIG. 8 is a cross section corresponding to the AA 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.

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 structure of the lighting fixture 300 is demonstrated with reference to FIGS. The lighting fixture 300 includes a long fixture body 100 and a long light source unit 200 that is detachably attached to the fixture body 100. The structural feature of the lighting fixture 300 of Embodiment 1 is that the thickness of the main portion 231 of the cover portion 230 is thick in the width direction (the center region 237 described later), (Both side regions 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 thereof is inserted into a later-described recess 111 of the instrument body 100. The instrument body 100 and the light source unit 200 are both long, but in the following, the longitudinal direction is defined as the longitudinal direction X, and the lateral direction that is the width direction with respect to the longitudinal direction X is defined as the lateral direction Y (FIG. 1). ).

（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 holding part 220, a cover part 230 that is a light source cover, and a light source lid part 240.
(1) The light emitting element substrate 210 has a light emitting element 212. In the light emitting element substrate 210, a plurality of light emitting elements 212 are mounted on a mounting surface 211 a of a long substrate 211. In the following embodiment, the light emitting element 212 is an LED.
(2) The light emitting element substrate 210 is attached to the holding unit 220. As shown in FIGS. 6-8, the holding | maintenance part 220 is the attachment part 221 which makes a flat plate shape in the longitudinal shape, Comprising: The back surface 221a of the surface 221b facing the flat plate part 112 of the instrument main body 100 (it is also called attachment surface 221a). Have a mounting portion 221 to which the light emitting element substrate 210 is mounted. As shown in FIG. 6, the attachment portion 221 has an attachment surface 221 a in which the light emitting element substrate 210 is one surface 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 unit 230 is attached to the holding unit 220 so as to cover the light emitting element substrate 210. The cover unit 230 is attached to the holding unit 220 and is held by the holding unit 220. The cover part 230 includes a main part 231 and a cover side wall part 232 provided as a pair. The main portion 231 has a long shape 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 portion 231a (one end portion in the short direction Y) and the other end portion 231b (the other end portion in the short direction Y) along the longitudinal direction X of the main portion 231. ) And a side wall portion that rises in the direction in which the flat plate portion 112 is located with the holding portion 220 interposed therebetween, and is a cover side wall portion 232 that forms a pair. That is, the pair of cover side wall portions 232 has a base end portion between 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. Rises in the opposite direction of the convex direction (Z direction). The direction in which the flat plate portion 112 is located is a direction from the one surface 221a of the holding portion 220 toward the other surface 221b opposite to the one surface 221a.
(4) The light source lid 240 closes both ends of the light source unit 200 in the longitudinal direction.
(5) Further, the light source unit 200 includes a connection fitting 250 that engages with the spring portion 130 attached to the instrument main 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 mounted linearly on the substrate 211. In addition, the row | line | column which mounts the light emitting element 212 linearly may be one row | line | column, and multiple rows | lines may be sufficient as it.

（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 part 220)
The holding part 220 is a first mounting part 221 having a substantially rectangular shape to which the light emitting element substrate 210 is attached, and a first part erected in the direction from the surface 221a to which the light emitting element substrate 210 is attached to the rear face 221b from both longitudinal sides of the attachment part 221. Side surface portion 222-1 and second side surface 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 230)
Details of the cover 230 will be described with reference to FIGS. As shown in FIG. 9, the cover portion 230 is substantially formed with the central axis 11 as the axis of symmetry. Although the description will be made mainly on the left side of the central axis 11, since the cover portion 230 is formed symmetrically 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 part 230 includes a main part 231, a cover side wall part 232, an upper support part 233 as a first support part, and a lower support part 234 as a second support part. Here, the entire main portion 231 and the cover side wall portion 232 are referred to as a cover main body portion 230a. The main part 231, the pair of cover side wall parts 232, and the pair of inclined parts 232-1 are formed of the same material, for example, a light-transmitting material. This material has light diffusibility and translucency. Note that the pair of inclined portions 232-1 may be formed of a reflective material that reflects light. Moreover, the upper side support part 233 and the lower side support part 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 230 D in which the cross-sectional shape having the longitudinal direction X as the normal direction is convex in the direction opposite to the rising direction of the cover side wall (Z direction). The convex cross-sectional shape 230D refers to the cross-sectional shape of the main portion 231 in FIG.
(1) The main portion 231 diffuses 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 the side surface of the cover portion 230.
(3) The upper support portion 233 is a first support portion that comes into contact with the distal end portions 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 attachment 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 that covers the light emitting element substrate 210. The main portion 231 is disposed so as to connect the end B (matching the end 231a) of one cover side wall 232 and the end B (matching the end 231b) of the other cover side wall 232. In other words, the cover side wall 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 part 232 is disposed so as to be paired with both ends (end part B) of the main part 231, and is opposite to the direction in which the main part 231 protrudes with both ends (end part B) of the main part 231 as base ends. Stand up in each direction. The cover side wall part 232 is formed substantially parallel to the first side wall part 113-1 and the second side wall part 113-2 of the recess 111 of the instrument body 100. Further, the dimension L1 (FIG. 9) which is the distance between the outer surfaces of the paired cover side wall parts 232 is the dimension L2 (the inner side surface 113 of the first side wall part 113-1) which is the width of the recess 111 shown in FIG. -1a and the inner side surface 113-2a of the second side wall portion 113-2 in a short direction), and is formed to have substantially the same dimensions so that it can be inserted into the recess 111 of the instrument body 100. In addition, the dimension that is approximately equivalent to be insertable is a dimension that can be inserted while suppressing a gap formed between the light source unit 200 and the recess 111 as much as possible. For example, the dimension L1 is 59 mm and the dimension L2 is 60 mm. That is, in the state in which the light source unit 200 is attached to the fixture body 100, the lighting fixture 300 has a recess inner width dimension that is a distance between the inner side surface 113-1a and the inner side surface 113-2a in the lateral direction Y of the recess 111. A dimension obtained by subtracting a leading end outer width dimension L1 (FIG. 9) which is a distance between the outer surface 232c of one leading end 232b and the outer surface 232c of the other leading end 232b in the short direction Y of the cover 230 from L2. However, it is 0 mm or more and 3 mm or less. That is, the lighting fixture 300 is in the range of 0 mm or more and 1.5 mm or less if the left and right gaps are the same in the cross section of FIG. 8 with the light source unit 200 attached to the fixture body 100. .

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 232 has a concave portion when the light source unit 200 is completely attached to the instrument body 100 and a part of the light source unit 200 is accommodated in the recess 111 of the instrument body 100. 111 is exposed to the outside from the opening 111a (rectangle abcd in FIG. 2). Each upper support portion 233 is accommodated in the recess 111 in a state where 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 part of each cover side wall portion 232 is located in the Z direction with respect to the light emitting element 212. For this reason, since the light emitted from the light emitting element 212 can be diffused by the cover side wall portions 232, the illumination effect is improved. The light source unit 200 is pulled out from the recess 111 when each cover side wall 232 is 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. With the operation space 500, the cover side wall part 232 of the light source unit 200 can be easily grasped at the time of attachment / 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 part 233)
The cover part 230 has an upper support part 233. As shown in FIG. 9, the upper support portion 233 has a cover side wall portion from the end A (terminal portion) above the end portion A where the rise of each cover side wall portion 232 along the longitudinal direction X of the main portion 231 ends. It forms so that it may become a pair from the front-end | tip part (terminal part) of the inclination part 232-1 formed incline in the direction of 232. The inclined portion 232-1 rises with an end A (terminal portion) of the side wall portion 232 as a base end portion, and inclines toward the central portion in the short-side direction. 233 is connected. As shown in FIG. 9, the upper support portion 233 includes a side wall portion 233a, an engagement portion 233b, and a reflection rib 233c.
(1) As shown in FIG. 9, the side wall part 233a is formed in the wall shape parallel to a central axis at the front-end | tip part (terminal part) of the inclination part 232-1.
(2) The engaging portion 233b is formed to extend in the horizontal direction from the upper end portion (terminal portion) of the side wall portion 233a, and engages with the upper end portion of the first side wall portion 222-1.
(3) The reflection rib 233 c is formed outside the cover side wall part 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 support part 234)
The lower support part 234 includes a lower convex part 234a and a lower pressing part 234b.
(1) As shown in FIG. 9, the lower convex portion 234a is formed to extend from the lower end portion of the side wall portion 233a toward the other side wall portion 233a. The lower convex portion 234a has a shape that is convex in the Z direction and covers the surface 221a of the holding portion 220 to which the light emitting element substrate 210 is attached.
(2) The edge portion in the short direction Y of the lower convex portion 234a forms a lower pressing portion 234b that presses the surface 221a of the mounting 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 engaging portion 233b of the upper support portion 233 and the lower pressing portion 234b of the lower support portion 234 sandwich the tip portion and the attachment portion 221 of the first side surface portion 222-1 of the holding portion 220, The cover part 230 is fixed to the holding part 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。 (Equipment body 100)
Next, the configuration of the instrument body 100 will be described. As shown in FIG. 4, the instrument main body 100 includes a concave portion 111, inclined portions 114-1 and 114-2, and lid portions 120-1 and 120-2.
(1) The concave portion 111 is formed substantially in 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 attached portion and spread from the long sides of the opening 111 a of the recess 111.
(3) The lid portions 120-1 and 120-2 are disposed at both ends in the longitudinal direction, and cover the concave portion 111 and the inclined portions 114-1 and 114-2 at the end portions in the longitudinal direction X.
(4) The instrument body 100 includes a spring portion 130 and a 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 includes a recess 111. As shown in FIG. 4, the recess 111 includes a long side flat plate portion 112, a first side wall that rises from one flat plate end portion 112 a and the other flat plate end portion 112 b along the longitudinal direction X of the flat plate portion 112. It has a concave shape having a portion 113-1 and a second side wall portion 113-2, and houses a part of the light source unit 200. The flat plate portion 112 abuts on a mounting portion such as a ceiling. An opening edge 111b (FIG. 8) is disposed around the opening 111a. The flat plate 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 supply 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 the attached portion with 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 a cover for explaining a change in thickness of the main portion 231. FIGS. 11 to 13 are diagrams for explaining the thickness change of the main portion 231.

（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. With this configuration, irradiation of light emitted from the main portion 231 can be made uniform in a short direction Y of the main portion 231 with a simple configuration. The central region 237 is a region sandwiched between both side regions 236 in the short direction Y of the convex cross-sectional shape 230D of the main portion 231.
Both side regions 236 exist on both sides of the central region 237. The both side regions 236 are regions where the left side region 236 includes one end 231a and the right side region 236 includes the other end 231b.
(2) FIG. 10 shows a structure in which the light emitted from the main part 231 is made to approach uniformly with a simple structure in the short direction Y of the main part 231 due to the structure of the thickness of the main part 231. 231 may be configured so that the light diffusivity of both side regions 236 in the lateral direction Y including the one end portion 231a and the other end portion 231b is smaller than that in the central region 237 in the lateral direction Y. The adjustment of the diffusivity is not limited to the change in the thickness of the main portion 231, or in addition to the change in the thickness, the diffusivity may be adjusted by the surface processing of the main portion 231 or the component configuration of the material constituting the main portion 231. .
(3) Moreover, the main part 231 may be comprised not from a viewpoint of a diffusivity but from a viewpoint of the light transmittance. That is, the light transmittance of the both 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 diffusivity may be adjusted by the surface processing of the main portion 231 or the component constitution of the material constituting the main portion 231. Uniformity of light irradiation in the short direction Y can be improved with a simple configuration by any one of diffusivity, transmittance, and thickness, or any two, or all three.

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 diagram for explaining a change in the thickness of the main portion 231. FIG. 11 is a cross-sectional view corresponding to FIG. The reason for “corresponding” is that FIG. 8 is a cross section where the harness clamp 270 appears, but FIG. 11 is a cross section where the connection fitting 250 appears. The cover section 230 has the same cross section.
(1) In FIG. 11, the main portion 231 is a cross-sectional view in which the radius of curvature R2 of the outer surface 231-2 of the convex cross-sectional shape 230D is different from the radius of curvature 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 the 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 both side regions 236.
(2) In the main portion 231 shown in FIG. 11, the radius of curvature R2 of the outer surface 231-2 of the convex cross-sectional shape 230D is smaller than the radius of curvature 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 center of curvature O (R2) of the outer surface 231-2 of the convex cross-sectional shape 230D is different from the center of curvature 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 on the lower side of the center of curvature O (R1) on the central axis 11. In the main part 231 of FIG. 11, the thickness of the 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 closer to the uniform in the short 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. 12 is the same cross-sectional view as FIG. 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 one-dot chain line sandwiched between one end 231a and the other end 231b are respectively An inner surface 231-1 and an outer surface 231-2 of the main part 231 are formed. 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 center of curvature O (R2) having the radius of curvature R2 is on the lower side of the center of curvature O (R1) having the radius of curvature R1 on the central axis 11. Also in the main part 231 of FIG. 12, the thickness of the both side regions 236 is thinner than that of the central region 237, so that irradiation of light emitted from the main part 231 can be made uniform in the short direction Y of the main part 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 diagram for explaining a change in the thickness of the main portion 231. 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 direction in which the cover side wall portion 232 rises. The main portion 231 has the above-described convex cross-sectional shape 230 D that has a symmetrical shape with the central axis 11 as the target axis when the lateral direction Y is the left-right direction. The light emitting element 212 intersects 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 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 locations Lp1 and Lp2 of the inner surface 231-1 forming the distance Lk changes. In FIG. 13, when the thickness at the location Lp1 at the distance L1 is t1, and the thickness at the location 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 greater 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, also 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 is made uniform in the lateral direction Y of the main portion 231. be able to. 11 and 12 have the same meaning as in FIG. 13, and the description of 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 part 234)
In FIG. 9, the side wall part 233a on the left side of the central axis 11 is an upper and lower wall-shaped part 2233a formed at the rising end part E of the inclined part 232-1. The upper and lower wall-shaped portion 2233a has a wall-shaped upper side wall-shaped portion 2233-1 extending in the direction opposite to the Z direction at the terminal end E, and a wall-shaped lower side wall-shaped portion 2233-2 extending in the Z direction. An upper and lower wall-shaped portion 2233a that is a target of the central shaft 11 is also formed on the right side of the central shaft 11, and the upper and lower wall-shaped portions 2233a are a pair. A lower support portion 234 (extension) extending from the terminal portion in the Z direction of the lower lower wall shape portion 2233-2 on the left of the central shaft 11 toward the lower wall shape portion 2233-2 of the counterpart (right side of the central shaft 11). Part) is formed, and the right side of the central axis 11 is the same. And the cover side wall part 232 does not have the member connected to the opposing surface which opposes the other party's cover side wall part 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 portion 234 and the cover side wall portion 232 facing the cover side wall portion 232. That is, the lower support portion 234 does not have a reverse extension portion extending in a direction connecting to the cover side wall portion 232 as indicated by a two-dot chain line.
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) between the inclination part 232-1 and the instrument main body 100 turns into 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, and R shown in FIG. 9, the light source unit 200 can define the 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,
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 the intersection P between the light emitting surface 212S of the light emitting element 212 and the central axis 11 in the Z direction (the central axis 11 direction) to the outer surface of the main portion 231 on the central axis 11. is there. A dimension h 2 shown in FIG. 9 is an end A which is an end B of the cover side wall 232 and an end A of the rising side of the cover side wall 232 located in the opposite direction (opposite to the Z direction) with respect to the end B. In the direction of the central axis 11.
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 the outer distance between the end portions A which are the end portions of the rising ends of the pair of cover side wall portions 232 in the lateral direction Y.
By satisfying any one of the conditions (1) and (2), it is possible to increase the irradiation on the cover side wall portion 232 (in the direction opposite to the Z direction).

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 reflection rib 233c protrudes from the upper wall shape portion 2233-1 in the direction opposite to the direction of the upper wall shape portion 2233-1 of the counterpart from the longitudinal direction X.
The reflective rib 233c is provided on the cover portion 230, and the light exiting the cover portion 230 is reflected by the reflective rib 233c, so that the gap (FIG. 8) between the cover portion 230 and the instrument main body 100 is “dark stripes” in the longitudinal direction X. Can be reduced. Therefore, the designability of the lighting fixture 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 reflection ribs 233c and the inner side surfaces 113-2a and 113-1a are white. The pair of inclined portions 232-1, the pair of cover side wall portions 232, and the main portion 231 have light transmittance and light diffusibility, and the pair of reflection ribs 233c and the inner side surfaces 113-2a and 113-1a have high reflection. Has characteristics. 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 be white and have high reflection characteristics. The reflective rib 233c is made 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 are recessed in a concave shape toward the counterpart cover side wall portion 232. That is, paying attention to the cover side wall 232 on the left side of the central axis 11 in FIG. 8, the cover side wall 232 faces the cover side wall 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 is a concave shape.
As described above, the cover portion 230 has a shape in which the pair of cover side wall portions 232 are recessed toward the counterpart cover side wall portion 232. 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 prescribed | regulated as follows.
The concave shape of the cover side wall 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,
Can be defined. h2, D, W, and R2 are all the dimensions shown in FIG. As shown in FIG. 9, the dimension h 2 is an end portion which is an end B of the cover side wall portion 232 and a rising end portion of the cover side wall portion 232 located in the opposite direction (anti-Z direction) to the end portion B. A distance from A in the direction of the central axis 11. D is the maximum depth of the concave shape of the cover side wall. R 2 is a radius of curvature of the outer surface of the cover side wall part 232. W is the outer distance between the end portions A which are the end portions of the rising ends of the pair of cover side wall portions 232 in the lateral direction Y.
The dimensions related to the concave shape described above are defined in consideration of workability when the light source unit 200 is attached to the instrument body 100 and workability when the light source unit 200 is detached from the instrument body 100. Specifically, It is the dimension in consideration of the shape and dimension of the finger of the operator who grasps the concave shape. Then, as to which of the condition (4) and the condition (5) is selected, the attachment strength for attaching the light source unit 200 to the instrument main body 100 is considered.
Furthermore, it is preferable that the cover side wall part 232 has a curved surface shape with the end A and the end B smaller than R2 to relieve stress applied to the fingertip during work.

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-shaped portions 2233a below the engaging portion 233b. Therefore, when the cover portion 230 is attached to the holding portion 220, the cover portion 230 is It becomes more difficult to drop off from the holding part 220.
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 sidewall shape portion 2233-1 is an obtuse angle (θ1> 90 °). Further, the angle θ2 formed by the direction in which the inclined portion 232-1 rises in the cross section shown in FIGS. 8 and 9 and the lower wall shape portion 2233-2 is an acute angle (θ2 <90 °). For this reason, with the effect that the cover part 230 becomes more difficult to drop off from the holding part 220, the possibility of destruction of the connection portion between the upper and lower wall-shaped part 2233a and the inclined part 232-1 can be reduced. And when removing the light source unit 200 from the instrument main body 100, since there is little possibility that the cover part 230 will remove | deviate from the holding | maintenance part 220, or the cover part 230 will be damaged, the light source unit is removed from the instrument main body 100. 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 of a 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。 Embodiment 2. FIG.
In the second embodiment, differences from the first embodiment will be mainly described. In the second embodiment, six variations 300-1, 300-2, 300-3, 300-4, 300-5, and 300-6 of the lighting fixture 300 described in the first embodiment will be described. Six variations are referred to 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。 The 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 point from which lighting fixtures 300-1 to 300-6 differ from Embodiment 1 is the shape of fixture 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 effect described in the first embodiment are the lighting fixtures 300-1 to 300-1 in the second embodiment. It is also applicable 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 lighting fixture 300 described in the first embodiment is a direct-mounting type lighting fixture in which the upper surface of the fixture 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 instrument body 100 in FIG. 7 is, for example, 150 mm. Moreover, it inclines at angle (theta) from the inclination part horizontal surface of the lighting fixture 10. In FIG.

（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. 15 is a cross-sectional view taken along the line BB in 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 luminaire 300-1 is 1.4 to 1.7 times the width L (0) in the short direction of the luminaire 300-1. 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 plane of the inclined portion of the lighting fixture 300-1 is smaller than the angle θ in FIG.

（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. 17 is a cross-sectional view taken along the line BB in FIG.
The lighting fixture 300-2 is a direct attachment type. The lighting fixture 300-2 differs from the fixture main body 100 of the lighting fixture 300 in the shape of the fixture main body 100-2. The lighting fixture 300-2 is a trough-type lighting fixture that does not have a configuration in which the fixture body 100-2 reflects 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. 19 is a cross-sectional view taken along line BB in FIG. The lighting fixture 300-3 is a direct attachment type. The lighting fixture 300-3 is different from the fixture main body 100 of the lighting fixture 300 in the shape of the fixture main body 100-3. The lighting fixture 300-3 is a reflective shade type lighting fixture that is formed so that the inclined portion of the fixture main body 100-3 extends toward the lower side of 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. 21 is a cross-sectional view taken along line BB in FIG. The luminaire 300-4 is an embedded type luminaire that is attached by being embedded in an attachment hole formed in an attachment portion such as a ceiling surface. The lighting fixture 300-4 differs from the fixture main body 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. 23 is a cross-sectional view taken along the line BB in FIG. The lighting fixture 300-5 is an embedded type lighting fixture. The lighting fixture 300-5 differs from the fixture main body 100 of the lighting fixture 300 in the shape of the fixture main body 100-5. 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 line BB in FIG. The lighting fixture 300-6 is an embedded type lighting fixture. The lighting fixture 300-6 differs from the fixture main body 100 of the lighting fixture 300 in the shape of the fixture main body 100-6. The luminaire 300-6 is a C-channel avoidance luminaire. In the lighting fixture 300-6, the height H (6) of the fixture main body 100-6 to be embedded is equal to the height H (4) of the fixture main body 100-4 shown in FIG. 21 or the height H (4) of the fixture main body 100-5 shown in FIG. It is lower than the 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 between the light source unit 200 and the recess 111 is the same as the mounting structure described in the first embodiment. Therefore, the structure and effect demonstrated in Embodiment 1 are applicable also about the lighting fixtures 300-1 to 300-6 of Embodiment 2. FIG.
In addition, although the light source unit, the fixture body, and the lighting fixture described above are all examples of the longitudinal shape, the present invention is not limited to this and may 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 transverse direction, P intersection, R1, R2 radius of curvature, O (R1), O (R2) curvature center, 11 central axis, 100 instrument body, 111 recess, 111a opening, 111b opening edge, 112 flat plate portion, 112a one flat plate end portion, 112b other flat plate end portion, 112c power supply lead hole, 112d fixing hole, 113-1 first side wall portion, 113-2 second side wall portion, 113-1a inner side surface , 113-2a inner 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 part, 222-2 Second side part, 229 Through hole, 230 cover part, 230a Cover main body part, 230D Convex section shape, 231 Main part, 231-1 Inner surface, 231-2 Outer surface, 231a One end part 231b The other end, 232 Cover side wall part, 232-1 Inclined part, 233 Upper support part, 233a Side wall part, 233b Engagement part, 233c Reflective rib, 234 Lower support part, 234a Lower convex part, 234b Lower Side pressing portion, 235 deformation allowable space, 236 both side regions, 237 central region, 240 light source lid portion, 250 connecting bracket, 260 power supply device, 270 harness clamp, 300 lighting fixture, 500 operation space.

Claims

A light-transmitting main body having a diffusive 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 has a convex cross-sectional shape in which the cross-sectional shape with the longitudinal direction as a normal direction is convex; ,
A pair of inclined portions that rise up with an inclination toward a central portion in a short direction of the main body portion, with a terminal portion opposite to the convex direction of the main body portion as a base end portion;
A pair of wall-shaped upper and lower wall-shaped portions extending in the opposite direction at the terminal portions and a wall-shaped lower wall-shaped portion extending in the convex direction at the terminal portions of the pair of inclined portions. Upper and lower wall shape parts;
A light source cover comprising: a pair of engaging portions formed at a terminal portion of the upper wall shape portion of each of the pair of upper and lower wall shape portions.

A light-transmitting main part having a diffusive shape, which has a longitudinal shape covering a light-emitting element substrate on which a light-emitting element that is a light source is mounted, and has a convex cross-sectional shape in which the shape of the cross-section with the longitudinal direction as a normal direction is convex; ,
Along the longitudinal direction of the main part, the diffusivity rises 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 walls having
A pair of inclined portions rising from the end portion of the pair of cover side wall portions as a base end portion and inclined toward the central portion in the lateral direction;
A pair of wall-shaped upper and lower wall-shaped portions extending in the opposite direction at the terminal portions and a wall-shaped lower wall-shaped portion extending in the convex direction at the terminal portions of the pair of inclined portions. Upper and lower wall shape parts;
A light source cover comprising: a pair of engaging portions formed at a terminal portion of the upper wall shape portion of each of the pair of upper and lower wall shape portions.

The angle formed by the direction in which the inclined portion rises in the cross section and the upper sidewall shape portion is:
The light source cover according to claim 1, wherein the light source cover has an obtuse angle.

The angle formed by the direction in which the inclined portion rises in the cross section and the lower sidewall shape portion is:
The light source cover according to claim 1, wherein the light source cover has an acute angle.

The angle formed between each end portion of the inclined portion in the cross section and the upper side wall shape portion is:
The light source cover according to claim 1, wherein the light source cover has an obtuse angle.

The angle formed between each end portion of the inclined portion in the cross section and the upper side wall shape portion is:
The light source cover according to any one of claims 1 to 4, wherein the light source cover is a right angle.

The angle formed between each end portion of the inclined portion in the cross section and the upper side wall shape portion is:
The light source cover according to claim 1, wherein the light source cover has an acute angle.

The light source cover according to any one of claims 1 to 7,
A light source unit comprising: a holding portion having a pair of holding engaging portions that engage with the pair of engaging portions.

The light source unit according to claim 8;
A lighting fixture comprising a fixture main body to which the light source unit is attached.