JP7488707B2

JP7488707B2 - Indirect lighting fixtures

Info

Publication number: JP7488707B2
Application number: JP2020113912A
Authority: JP
Inventors: 隆浩福井; 國孝清水; 祐太下沖
Original assignee: Fujisash Co Ltd
Current assignee: Fujisash Co Ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2024-05-22
Anticipated expiration: 2040-07-01
Also published as: JP2022022674A

Description

本発明は、建物の壁と天井との間のスリット等に設ける間接照明器具に関する。 The present invention relates to an indirect lighting device that is installed in a slit between the wall and ceiling of a building.

ホテルや美術館等の建物においては、建物の天井や壁等に設けた光源から直接、明かりを照らすダウンライト等の直接照明器具以外に、建物の天井や壁等に設けたライト（光源）からの光を反射板で天井や壁などに反射させて間接光とする間接照明器具が数多く使用されている。このような間接照明器具では、反射板とは別に遮光板（遮蔽板）を設けて、ライト（光源）からの光を遮光板（遮蔽板）で遮光して直接床面に向かって照射されることを防止したり、遮光板（遮蔽板）によってライト（光源）が下方にいる人に極力見え難く隠すように構成したものが提案されている（例えば、特許文献１参照。）。 In buildings such as hotels and museums, in addition to direct lighting fixtures such as downlights that shine directly from a light source installed on the ceiling or walls of the building, many indirect lighting fixtures are used that use a reflector to reflect light from a light (light source) installed on the ceiling or walls of the building onto the ceiling or walls to create indirect light. In such indirect lighting fixtures, a light shielding plate (shielding plate) has been provided in addition to the reflector to block the light from the light (light source) so that it is not irradiated directly onto the floor surface, or the light shielding plate is used to hide the light (light source) so that it is as difficult as possible for people below to see it (see, for example, Patent Document 1).

特開２０１０－６７４１０号公報JP 2010-67410 A

しかし、上述の特許文献１の間接照明器具では、反射板と遮光板（遮蔽板）とを別々に設けていたため、部品点数が増大して、照明器具全体が大型化すると共に、取付け時の作業負担が大きい、という問題があった。 However, in the indirect lighting fixture of Patent Document 1 mentioned above, the reflector and the light-shielding plate (blocking plate) were provided separately, which increased the number of parts, making the entire lighting fixture larger, and increasing the workload during installation.

また、照明器具全体が大型化すると、間接照明器具を設置する建物の壁と天井との間のスリットの幅も大きくなるため、意匠性に欠けるという問題点があった。 In addition, when the overall size of the lighting fixture increases, the width of the slit between the wall and ceiling of the building in which the indirect lighting fixture is installed also increases, creating the problem of a lack of aesthetic appeal.

特に、近年は白熱ライトや蛍光灯に代ってより小型のＬＥＤ電球やＬＥＤ蛍光管等のＬＥＤライトが使用されているため、間接照明器具全体の小型化が可能であるものの、間接照明器具全体を小型化すると、スリットの幅も狭くなり、間接照明器具の取付け作業性が悪くなると共に、ＬＥＤライトの交換作業の作業性が悪くなるという問題もあった。 In particular, in recent years, smaller LED lights such as LED bulbs and LED fluorescent tubes have been used in place of incandescent lights and fluorescent lamps, making it possible to miniaturize the entire indirect lighting fixture. However, when the entire indirect lighting fixture is miniaturized, the width of the slits also becomes narrower, which makes it difficult to install the indirect lighting fixture and difficult to replace the LED lights.

そこで、本発明はこのような問題点を解決するためなされたもので、部品点数を削減して間接照明器具全体を小型化できると共に、取付け作業性も向上させることができ、さらには間接照明器具全体の小型化等によって意匠性も向上させることが出来る間接照明器具を提供することを目的とする。 The present invention has been made to solve these problems, and aims to provide an indirect lighting fixture that can reduce the number of parts to make the entire indirect lighting fixture smaller, improve installation workability, and further improve the design by making the entire indirect lighting fixture smaller.

前記課題を解決するため、本発明に係る間接照明器具は、下面側にライトが取り付けられるライト取付板部と、前記ライト取付板部における前記ライトの取付位置を介し建物の壁とは反対側から下方に延び、前記ライトよりも下方で建物の壁に向かって突出する突出板を着脱可能に取付けるための被掛止部が設けられた突出板取付板部とを有し、前記突出板には、前記ライトからの照射光を建物の壁面に向かって反射する照射光反射面と、前記ライトを当該突出板の下方から見え難く隠すライト目隠し面と、前記突出板取付板部の被掛止部に着脱可能に掛止する掛止部とが設けられていることを特徴とする。
また、本発明に係る間接照明器具では、前記ライト目隠し面は前記照射光反射面よりも下方に設けられ、前記突出板における前記照射光反射面の上下方向の長さが前記ライト目隠し面の上下方向の長さよりも大きいことも特徴とする。
また、本発明に係る間接照明器具では、前記ライト目隠し面は前記照射光反射面よりも下方に設けられ、前記突出板における前記照射光反射面と前記ライト目隠し面との境界が前記ライトの前記突出板側の端部から鉛直方向に下した延長線よりも建物の壁面側に突出していることも特徴とする。
また、本発明に係る間接照明器具では、建物の壁に固定される壁固定板部と、その壁固定板部から建物の壁から離れる方向に延びるライト支持部材取付板部とを有するベース部材と、前記ベース部材の前記ライト支持部材取付板部に上面側が対面して取り付けられる前記ライト取付板部および前記突出板取付板部とを有するライト支持部材とを備え、前記ベース部材における前記ライト支持部材取付板部の下面側には、建物の壁から離れる方向に所定間隔を空けてｎ＋１（ｎは自然数。）個以上のベース部材側嵌合部が設けられている一方、前記ライト支持部材における前記ライト取付板部の上面側には、ｎ＋１個以上の前記ベース部材側嵌合部の内、ｎ個の前記ベース部材側嵌合部を選択して嵌合することにより、前記ベース部材に対する前記ライト支持部材の取付け位置を変更することができるｎ個のライト支持部材側嵌合部が設けられていることも特徴とする。 In order to solve the above problem, the indirect lighting device of the present invention has a light mounting plate section to which a light is attached on its underside, and a protruding plate mounting plate section which extends downward from the opposite side to the wall of the building via the mounting position of the light on the light mounting plate section and is provided with a hanging portion for removably mounting a protruding plate that protrudes toward the wall of the building below the light, and is characterized in that the protruding plate is provided with a light reflecting surface that reflects light from the light toward the wall of the building, a light concealing surface that hides the light so that it is difficult to see from below the protruding plate , and a hanging portion that is removably hung on the hanging portion of the protruding plate mounting plate section .
In addition, the indirect lighting device of the present invention is also characterized in that the light concealing surface is located below the irradiation light reflecting surface, and the vertical length of the irradiation light reflecting surface on the protruding plate is greater than the vertical length of the light concealing surface.
In addition, the indirect lighting device of the present invention is also characterized in that the light concealing surface is located below the illuminated light reflecting surface, and the boundary between the illuminated light reflecting surface and the light concealing surface of the protruding plate protrudes toward the wall surface of the building further than an extension line extending vertically down from the end of the light on the protruding plate side.
Furthermore, the indirect lighting device of the present invention comprises a base member having a wall fixing plate portion fixed to a wall of a building and a light support member mounting plate portion extending from the wall fixing plate portion in a direction away from the wall of the building, and a light support member having the light mounting plate portion and the protruding plate mounting plate portion attached with their upper sides facing each other to the light support member mounting plate portion of the base member, wherein an underside of the light support member mounting plate portion of the base member is provided with n+1 (n is a natural number) or more base member side fitting portions spaced at predetermined intervals in a direction away from the wall of the building, while an upper side of the light mounting plate portion of the light support member is provided with n light support member side fitting portions which can change the mounting position of the light support member relative to the base member by selecting and fitting n of the n+1 or more base member side fitting portions.

本発明に係る間接照明器具では、ライトの高さよりも下方でそのライトを介し建物の壁とは反対側から建物の壁に向かって突出した突出板を有し、その突出板は、ライトからの照射光を建物の壁面に向かって反射する照射光反射面と、ライトを斜め下方から見え難く隠すライト目隠し面と、突出板取付板部の被掛止部に着脱可能に掛止する掛止部とを有する。
そのため、本発明では、突出部の照射光反射面およびライト目隠し面が、ライトからの光を反射する反射板とライトからの光が直接下方へ漏れなくする遮光板（遮蔽板）等の機能も有するので、部品点数を削減して間接照明器具全体を小型化できると共に、取付け作業性も向上させることができ、さらには間接照明器具全体の小型化等によって意匠性も向上させることが出来る。また、ライト交換時等には突出板を突出板取付板部から取り外すことができるので、ライト交換時等の作業性を向上させることができると共に、突出板の突出量等を考慮せずに壁と突出板取付板部との間隔であるスリット幅を細くして意匠性を向上させることができる。 The indirect lighting device of the present invention has a protruding plate that protrudes from the light toward the wall of the building from the opposite side to the wall of the building, below the height of the light, and the protruding plate has a light reflecting surface that reflects light from the light toward the wall of the building, a light concealing surface that hides the light so that it is difficult to see from diagonally below , and a hanging part that is detachably hung on the hanging part of the protruding plate mounting plate .
Therefore, in the present invention, the irradiated light reflecting surface and the light concealing surface of the protruding portion also function as a reflector that reflects light from the light and a light shielding plate (shielding plate) that prevents light from leaking directly downward, etc., so that the number of parts can be reduced to make the indirect lighting fixture smaller as a whole, and the ease of installation can be improved, and the design can be improved by making the indirect lighting fixture smaller as a whole. Furthermore, since the protruding plate can be removed from the protruding plate mounting plate when replacing the light, etc., the ease of installation when replacing the light, etc. can be improved, and the design can be improved by narrowing the slit width, which is the distance between the wall and the protruding plate mounting plate, without considering the amount of protrusion of the protruding plate, etc.

本発明に係る実施形態の間接照明器具を建物の壁面に取り付けた状態を示す断面図である。1 is a cross-sectional view showing an indirect lighting fixture according to an embodiment of the present invention attached to a wall surface of a building. 本発明に係る実施形態の間接照明器具の斜視図である。1 is a perspective view of an indirect lighting device according to an embodiment of the present invention. (ａ)，(ｂ)それぞれ、本発明に係る実施形態の間接照明器具を構成するベース部材の斜視図、正面図である。1A and 1B are a perspective view and a front view, respectively, of a base member constituting an indirect lighting fixture according to an embodiment of the present invention. (ａ)，(ｂ)それぞれ、本発明に係る実施形態の間接照明器具を構成するライト支持部材の斜視図、正面図である。1A and 1B are a perspective view and a front view, respectively, of a light support member constituting an indirect lighting device according to an embodiment of the present invention. (ａ)，(ｂ)それぞれ、本発明に係る実施形態の間接照明器具を構成する突出板の斜視図、正面図である。1A and 1B are a perspective view and a front view, respectively, of a protruding plate constituting an indirect lighting fixture according to an embodiment of the present invention. (ａ)，(ｂ)それぞれ、本発明に係る実施形態の間接照明器具の正面図、図６（ａ）の場合におけるベース部材とライト支持部材の嵌合関係を拡大して示す要部正面図である。6A and 6B are respectively a front view of an indirect lighting fixture according to an embodiment of the present invention and a front view of a main part showing an enlarged fitting relationship between the base member and the light support member in the case of FIG. 6A. 本発明に係る実施形態の間接照明器具を構成するベース部材同士の継目にベース部材用目違い防止プレートを挿入した状態を示す要部平面図である。1 is a plan view of a main portion showing a state in which a misalignment prevention plate for a base member is inserted into a joint between base members that constitute an indirect lighting fixture of an embodiment of the present invention. FIG. 本発明に係る実施形態の間接照明器具を構成するライト支持部材同士の継目にライト支持部材用目違い防止プレートを挿入した状態を示す要部平面図である。1 is a plan view of a main portion showing a state in which a misalignment prevention plate for a light support member is inserted into a joint between light support members that constitute an indirect lighting fixture of an embodiment of the present invention. FIG. (ａ)，(ｂ)それぞれ、本発明に係る実施形態の間接照明器具の取付手順を示す図であって実施形態の間接照明器具を取付けていない状態を示す図、ベース部材を固定する方法を示す図である。1A and 1B are diagrams showing the installation procedure of an indirect lighting fixture of an embodiment of the present invention, respectively showing a state in which the indirect lighting fixture of the embodiment is not installed, and a diagram showing a method of fixing the base member. (ａ)，(ｂ)それぞれ、壁面に固定したベース部材にライト支持部材を取付けると共にＬＥＤライト用クリップを固定する際の状態を示す図、ライト支持部材を低頭テクスビスで固定すると共にライト支持部材に固定したＬＥＤライト用クリップにＬＥＤライトを嵌合させて取付ける際の状態を示す図である。1A and 1B are diagrams showing the state when a light support member is attached to a base member fixed to a wall surface and an LED light clip is fixed, and the state when the light support member is fixed with a low-head tex screw and an LED light is fitted into the LED light clip fixed to the light support member for installation, respectively. (ａ)，(ｂ)それぞれライト支持部材にＬＥＤライトを取付けた後、ライト支持部材に突出板を掛止する際の手順を示す図、ライト支持部材に突出板を掛止した後、壁用石膏ボードおよび天井用石膏ボードを取付けた状態を示す図である。1A and 1B are diagrams showing the procedure for hanging a protruding plate on a light support member after attaching an LED light to the light support member, and a diagram showing the state after hanging the protruding plate on the light support member and attaching a wall plasterboard and a ceiling plasterboard. (ａ)，(ｂ)それぞれ軽量鉄骨板に予め壁用石膏ボードが施工されている建物の壁に本発明に係る実施形態の間接照明器具を取り付けた状態を示す正面図、図１２（ａ）の場合におけるベース部材とライト支持部材の嵌合関係を拡大して示す要部正面図である。12(a) and 12(b) are front views showing the state in which an indirect lighting fixture of an embodiment of the present invention is installed on a wall of a building where wall plasterboard has already been installed on a lightweight steel frame plate, and a front view of the main part showing an enlarged fitting relationship between the base member and the light support member in the case of FIG. 12(a). (ａ)，(ｂ)それぞれ軽量鉄骨板に予め壁用石膏ボードが施工されていて、かつ、スペーサーを利用して本発明に係る実施形態の間接照明器具を取り付けた状態を示す正面図である。1A and 1B are front views showing a state in which a wall plasterboard has been installed on a lightweight steel frame plate in advance, and an indirect lighting fixture of an embodiment of the present invention has been attached using a spacer.

以下、本発明に係る実施形態の間接照明器具１について図面を参照して説明する。尚、以下に説明する実施の形態はあくまで本発明の一例であり、本発明が下記に説明する実施形態に限定されるものではなく、本発明の技術的思想の範囲内で適宜変更可能である。 The following describes an indirect lighting device 1 according to an embodiment of the present invention with reference to the drawings. Note that the embodiment described below is merely an example of the present invention, and the present invention is not limited to the embodiment described below, and can be modified as appropriate within the scope of the technical concept of the present invention.

＜実施形態の間接照明器具１の構成＞
本発明に係る実施形態の間接照明器具１は、図１等に示すように、ベース部材１１と、ライト支持部材１２と、突出板１３と、ＬＥＤライト１４と、ベース部材用目違い防止プレート１５と、ライト支持部材用目違い防止プレート１６と、ライトクリップ１７と、これらの部材を固定するビス（タッピングビス１８ａ，１８ｂや低頭テクスビス１８ｃ）等を備えて構成されており、建物の室内の壁２を構成する軽量鉄骨板（ＬＧＳ；Light Gauge Steel）２ａに固定するように構成されている。 <Configuration of indirect lighting device 1 according to embodiment>
As shown in FIG. 1 etc., an indirect lighting fixture 1 according to an embodiment of the present invention is configured to include a base member 11, a light support member 12, a protruding plate 13, an LED light 14, a misalignment prevention plate for the base member 15, a misalignment prevention plate for the light support member 16, a light clip 17, and screws for fixing these members (tapping screws 18a, 18b and low-head text screws 18c), and is configured to be fixed to a light gauge steel (LGS) plate 2a that constitutes a wall 2 inside a building.

尚、図１において、建物の壁２は、図示しないコンクリート壁に固定された軽量鉄骨板２ａに壁用石膏ボード（Ｐｂ；Plaster board）２ｂを１枚または複数枚（ここでは、例えば、２枚とする。）重ねて構成される。 In FIG. 1, the wall 2 of the building is constructed by stacking one or more (for example, two) wall plaster boards (Pb) 2b on a lightweight steel frame 2a fixed to a concrete wall (not shown).

また、図１において、建物の天井３は、図示しないコンクリート天井に対し平行に延びる野縁受け３ａに野縁クリップ３ｂを介して設けられた野縁３ｃに天井用石膏ボード（Ｐｂ）３ｄが１枚または複数枚（ここでは、例えば、２枚とする。）重ねて構成される。 In addition, in FIG. 1, the ceiling 3 of the building is constructed by stacking one or more sheets (here, two sheets, for example) of ceiling gypsum board (Pb) 3d on a siding 3c that is attached to a siding support 3a that extends parallel to a concrete ceiling (not shown) via a siding clip 3b.

図１から明らかなように、本実施形態の間接照明器具１は、建物の壁２と建物の天井３との境界部分に形成されたスリット部分に壁２と平行に取付け、ＬＥＤライト１４の光を主に突出板１３の照射光反射面１３ｃで反射し建物の壁２に向かって照射するように構成したものである。尚、図１に示すように軽量鉄骨板２ａに取付けた壁用石膏ボード（Ｐｂ）２ｂ表面かライト支持部材１２の後述する突出板取付板部１２ｂ内側面までの間隔であるスリットの幅Ｗ１は、例えば、５５ｍｍ程度の従来のスリット幅よりも非常に狭い幅としている。 As is clear from FIG. 1, the indirect lighting device 1 of this embodiment is attached parallel to the wall 2 in a slit formed at the boundary between the wall 2 and the ceiling 3 of the building, and is configured so that the light from the LED light 14 is mainly reflected by the light reflecting surface 13c of the protruding plate 13 and directed toward the wall 2 of the building. As shown in FIG. 1, the width W1 of the slit, which is the distance from the surface of the wall gypsum board (Pb) 2b attached to the lightweight steel frame plate 2a to the inner surface of the protruding plate mounting plate part 12b of the light support member 12 described later, is much narrower than the conventional slit width, for example, about 55 mm.

また、図２は、本実施形態の間接照明器具１を下方の壁側から見た斜視図を示しており、ライト支持部材１２には適宜間隔で熱抜き孔兼配線孔１２ｂ４が設けられている。尚、図２では、ベース部材用目違い防止プレート１５やライト支持部材用目違い防止プレート１６等は図示を省略している。 Figure 2 shows a perspective view of the indirect lighting device 1 of this embodiment as seen from the wall below, with the light support member 12 provided with heat release holes and wiring holes 12b4 at appropriate intervals. Note that in Figure 2, the misalignment prevention plate 15 for the base member and the misalignment prevention plate 16 for the light support member are not shown.

（ベース部材１１）
ベース部材１１は、図１に示すように建物の軽量鉄骨板２ａにタッピングビス１８ａ等で固定される部材であって、ベース部材１１の断面形状の形材を作業や運搬等に便利な例えば１．５ｍ～３ｍ前後の長さで切断しておき、現場においてジョイント材であるベース部材用目違い防止プレート１５によって継ぎ合せて使用する物である。 (Base member 11)
The base member 11 is a member that is fixed to the light steel frame plate 2a of the building with tapping screws 18a or the like, as shown in Figure 1. The cross-sectional shape of the base member 11 is cut to a length that is convenient for work, transportation, etc., of about 1.5 m to 3 m, and is then joined together on site using a joint material, the base member misalignment prevention plate 15.

ベース部材１１は、図３（ａ），（ｂ）等に示すようにほぼＬ字形状に形成されており、鉛直方向に延びる壁固定板部１１ａと、壁固定板部１１ａの下端部から９０度曲がって建物の壁から離れる方向に延びるライト支持部材取付板部１１ｂとを有する。 The base member 11 is formed in a substantially L-shape as shown in Figures 3(a) and (b), and has a wall fixing plate portion 11a that extends vertically, and a light support member mounting plate portion 11b that bends 90 degrees from the lower end of the wall fixing plate portion 11a and extends away from the wall of the building.

壁固定板部１１ａには、ベース部材１１，１１同士を段差なく継ぎ合せるためのジョイント材であるベース部材用目違い防止プレート１５の壁２側の端部が嵌って、上から押える目違い防止プレート押え片１１ａ１が設けられている。 The wall fixing plate portion 11a is provided with a misalignment prevention plate pressing piece 11a1 that fits over the end of the wall 2 side of the misalignment prevention plate 15 for base members, which is a joint material for joining the base members 11, 11 together without any steps, and presses down from above.

ライト支持部材取付板部１１ｂの下面側には、図３（ａ），（ｂ）等に示すように壁固定板部１１ａから離間した端部から所定間隔を空けて直線状に垂れ下がった第１垂下片１１ｂ１～第３垂下片１１ｂ３と、Ｌ字形状のＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６が交互に設けられていると共に、第３嵌合部１１ｂ６の底面が壁固定板部１１ａの下端部まで延びて図１に示すように壁用石膏ボード（Ｐｂ）２ｂ上端部が当接ないしは近接する壁用石膏ボード当接面１１ｂ７が設けられている。 On the underside of the light support member mounting plate 11b, as shown in Figures 3(a) and (b), the first hanging piece 11b1 to the third hanging piece 11b3 hang down in a straight line at a predetermined distance from the end separated from the wall fixing plate 11a, and the L-shaped first fitting portion 11b4 to the L-shaped third fitting portion 11b6 are alternately provided, and the bottom surface of the third fitting portion 11b6 extends to the lower end of the wall fixing plate 11a, providing a wall plaster board abutment surface 11b7 with which the upper end of the wall plaster board (Pb) 2b abuts or is adjacent as shown in Figure 1.

尚、Ｌ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６の数は３個であるため、本実施形態では、その数を（ｎ＋１）で表した場合は、ｎ＝２となる。 Note that since there are three L-shaped first fitting portion 11b4 to third L-shaped fitting portion 11b6, in this embodiment, if the number is expressed as (n+1), then n=2.

一方、ライト支持部材取付板部１１ｂの上面側には、図３（ａ），（ｂ）等に示すように壁固定板部１１ａから離間した端部に設けた第１垂下片１１ｂ１と連続して上方に延びた後、壁固定板部１１ａに向かって９０度曲がり、壁固定板部１１ａの目違い防止プレート押え片１１ａ１とでベース部材１１同士を段差なく継ぎ合せるためのベース部材用目違い防止プレート１５の上面側の端部が嵌り上から押える目違い防止プレート押え片１１ｂ８が設けられている。 On the other hand, on the upper surface side of the light support member mounting plate portion 11b, as shown in Figures 3(a) and (b), etc., there is a misalignment prevention plate pressing piece 11b8 which extends upward in continuation with the first hanging piece 11b1 provided at the end spaced away from the wall fixing plate portion 11a, then bends 90 degrees toward the wall fixing plate portion 11a, and fits over the upper end of the misalignment prevention plate 15 for base members to join the base members 11 together without any steps with the misalignment prevention plate pressing piece 11a1 of the wall fixing plate portion 11a to press down from above.

また、ライト支持部材取付板部１１ｂの上面側には、図３（ａ），（ｂ）等に示すようにベース部材１１同士を継ぎ合せる際、ベース部材用目違い防止プレート１５の下面側が当接するように突出した目違い防止プレート当接用凸部１１ｂ９が所定間隔を空けて２箇所設けられている。 In addition, on the upper surface side of the light support member mounting plate portion 11b, as shown in Figures 3(a) and (b), two misalignment prevention plate abutment protrusions 11b9 are provided at a predetermined distance from each other. These protrude so that the lower surface side of the misalignment prevention plate 15 for the base member abuts against them when the base members 11 are joined together.

（ライト支持部材１２）
ライト支持部材１２は、図１や図２等に示すようにベース部材１１に固定され、ＬＥＤライト１４が取り付けられると共に、ＬＥＤライト１４の位置よりも下方に建物の軽量鉄骨板２ａ方向に向かって突出するように設けられた突出板１３が取り付けられるもので、ライト支持部材１２の断面形状の形材を、作業や運搬等に便利な例えば１．５ｍ～３ｍ前後の長さで切断しておき、現場においてジョイント材であるライト支持部材用目違い防止プレート１６によって継ぎ合せて使用する部材である。 (Light support member 12)
As shown in Figures 1 and 2, the light support member 12 is fixed to a base member 11, has an LED light 14 attached to it, and has a protruding plate 13 attached so as to protrude downward below the position of the LED light 14 towards the light steel frame plate 2a of the building. The cross-sectional shape of the light support member 12 is cut to a length that is convenient for work, transportation, etc., of about 1.5 m to 3 m, for example, and is used by joining them together on site using a light support member misalignment prevention plate 16, which is a joint material.

ライト支持部材１２は、図４（ａ），（ｂ）に示すようにベース部材１１のライト支持部材取付板部１１ｂに対面して取り付けられると共にＬＥＤライト１４が取り付けられるＬＥＤライト取付板部１２ａと、ＬＥＤライト取付板部１２ａにおける建物の壁２から離間した端部から９０度曲がって下方に延びる突出板１３が取り付けられる突出板取付板部１２ｂとを有する。 As shown in Figures 4(a) and (b), the light support member 12 has an LED light mounting plate portion 12a that is attached facing the light support member mounting plate portion 11b of the base member 11 and to which the LED light 14 is attached, and a protruding plate mounting plate portion 12b to which a protruding plate 13 is attached, which bends 90 degrees from the end of the LED light mounting plate portion 12a that is away from the wall 2 of the building and extends downward.

ＬＥＤライト取付板部１２ａの上面側には、上述したようにベース部材１１のライト支持部材取付板部１１ｂに対面して取り付けるため、ライト支持部材取付板部１１ｂの下面側のＬ字形状のＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６の内、隣接する２つのＬ字嵌合部、つまりＬ型第１嵌合部１１ｂ４とＬ型第２嵌合部１１ｂ５、またはＬ型第２嵌合部１１ｂ５とＬ型第３嵌合部１１ｂ６にそれぞれ嵌合する逆Ｌ字形状の２つ（ｎ個）の逆Ｌ型第１嵌合部１２ａ１と逆Ｌ型第２嵌合部１２ａ２とを有する。 The upper surface of the LED light mounting plate 12a faces the light support member mounting plate 11b of the base member 11 as described above, and has two (n) inverted L-shaped first and second fitting portions 12a1 and 12a2 that fit into two adjacent L-shaped fitting portions, that is, the first L-shaped fitting portion 11b4 and the second L-shaped fitting portion 11b5, or the second L-shaped fitting portion 11b5 and the third L-shaped fitting portion 11b6, of the L-shaped first fitting portion 11b4 to the third L-shaped fitting portion 11b6 on the lower surface of the light support member mounting plate 11b.

これにより、本実施形態の間接照明器具１では、ライト支持部材１２側の２つ（ｎ個）の逆Ｌ型第１嵌合部１２ａ１と逆Ｌ型第２嵌合部１２ａ２とがベース部材１１側のＬ型第１嵌合部１１ｂ４とＬ型第２嵌合部１１ｂ５、またはＬ型第２嵌合部１１ｂ５とＬ型第３嵌合部１１ｂ６にそれぞれ嵌合することによって、後述する取付方法１，２に示すようにベース部材１１に対するライト支持部材１２の取付け位置を変更して、ライト支持部材１２を壁２に遠ざけたり、近づけてベース部材１１に取付けることが出来る。 As a result, in the indirect lighting device 1 of this embodiment, the two (n pieces) of inverted L-shaped first fitting portion 12a1 and inverted L-shaped second fitting portion 12a2 on the light support member 12 side are fitted into the L-shaped first fitting portion 11b4 and the L-shaped second fitting portion 11b5, or the L-shaped second fitting portion 11b5 and the L-shaped third fitting portion 11b6 on the base member 11 side, respectively, so that the mounting position of the light support member 12 relative to the base member 11 can be changed and the light support member 12 can be mounted on the base member 11 away from or closer to the wall 2, as shown in mounting methods 1 and 2 described below.

また、ＬＥＤライト取付板部１２ａの上面側には、ライト支持部材１２同士を段差なく継ぎ合せるためのジョイント材であるライト支持部材用目違い防止プレート１６を装着する目違い防止プレート装着用凹部１２ａ３と、目違い防止プレート装着用凹部１２ａ３の両側でライト支持部材用目違い防止プレート１６の両端部を押える目違い防止プレート押え片１２ａ４，１２ａ５とを設けている。 The upper surface of the LED light mounting plate 12a is provided with a misalignment prevention plate mounting recess 12a3 for mounting the misalignment prevention plate 16 for the light support member, which is a joint material for joining the light support members 12 together without any steps, and misalignment prevention plate pressing pieces 12a4 and 12a5 for pressing both ends of the misalignment prevention plate 16 for the light support member on both sides of the misalignment prevention plate mounting recess 12a3.

また、ＬＥＤライト取付板部１２ａのベース部材１１側には、図１に示すように軽量鉄骨板２ａに取付けられた壁用石膏ボード（Ｐｂ）２ｂに向かって延び、壁用石膏ボード（Ｐｂ）２ｂの上端部やその撓み等を下方にいる人に極力見えないように隠す壁用石膏ボード上端部隠し片１２ａ６を設けている。 In addition, on the base member 11 side of the LED light mounting plate portion 12a, as shown in FIG. 1, there is provided a wall plasterboard upper end hiding piece 12a6 that extends toward the wall plasterboard (Pb) 2b attached to the lightweight steel frame plate 2a, and hides the upper end of the wall plasterboard (Pb) 2b and its bending, etc., so that it is not visible to people below.

ここで、壁用石膏ボード上端部隠し片１２ａ６は、ライト支持部材取付板部１１ｂのＬ型第３嵌合部１１ｂ６や壁用石膏ボード当接面１１ｂ７よりも低くズレており、具体的には、後述する図１２（ｂ）等から明らかなように、ベース部材１１のＬ型第３嵌合部１１ｂ６および壁用石膏ボード当接面１１ｂ７の下面に壁用石膏ボード上端部隠し片１２ａ６の上面が当接する高さであり、ライト支持部材１２側の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２とベース部材１１側のＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６との選択嵌合によってベース部材１１に対するライト支持部材１２の取付け位置の変更機能を妨げないように設けられている。 Here, the wall plaster board upper end concealing piece 12a6 is shifted lower than the L-shaped third fitting portion 11b6 and the wall plaster board abutment surface 11b7 of the light support member mounting plate portion 11b. Specifically, as will be clear from FIG. 12(b) and other figures described later, the height is such that the upper surface of the wall plaster board upper end concealing piece 12a6 abuts against the lower surface of the L-shaped third fitting portion 11b6 and the wall plaster board abutment surface 11b7 of the base member 11, and is provided so as not to impede the function of changing the mounting position of the light support member 12 relative to the base member 11 by selectively fitting the inverted L-shaped first fitting portion 12a1 and the inverted L-shaped second fitting portion 12a2 on the light support member 12 side with the L-shaped first fitting portion 11b4 to the L-shaped third fitting portion 11b6 on the base member 11 side.

ＬＥＤライト取付板部１２ａの下面側には、ＬＥＤライト１４が取り付けられるＬＥＤライト取付面１２ａ７と、目違い防止プレート装着用凹部１２ａ３の形成によって壁用石膏ボード上端部隠し片１２ａ６よりも低くなって壁用石膏ボード上端部隠し片１２ａ６との間の上下方向の段差にＬＥＤライト１４からの光でスリット状の影部を形成し、壁用石膏ボード（Ｐｂ）２ｂの上端部やその撓み等を下方にいる人に気付き難くすると共に、ＬＥＤライト取付面１２ａ７との間での上下方向の段差によってライトクリップ１７装着時のガイド機能を有する影部生成兼ガイド用突出面１２ａ８等を有する。尚、ライトクリップ１７は、ベース部材１１やライト支持部材１２等と同様に長尺物でも良いし、ベース部材用目違い防止プレート１５（図７参照。）やライト支持部材用目違い防止プレート１６（図８参照。）等と同様にピース物でも良く、その形状は特に限定されるものではなく、ＬＥＤライト１４の取付けに不要な場合は、省略しても良い。また、ライトクリップ１７を省略した場合、影部生成兼ガイド用突出面１２ａ８は、ＬＥＤライト１４装着時のガイド機能を有することになる。 The underside of the LED light mounting plate 12a has an LED light mounting surface 12a7 on which the LED light 14 is mounted, and a recess 12a3 for mounting an anti-misalignment plate which is lower than the concealing piece 12a6 at the top end of the wall plasterboard, forming a slit-shaped shadow with light from the LED light 14 in the vertical step between the piece 12a6 and the top end of the wall plasterboard (Pb) 2b, making it difficult for people below to notice the top end of the wall plasterboard (Pb) 2b or its bending, and also has a shadow generating and guide protruding surface 12a8 which has a guide function when the light clip 17 is attached due to the vertical step between the LED light mounting surface 12a7. The light clip 17 may be a long object like the base member 11 and the light support member 12, or may be a piece-like object like the misalignment prevention plate for the base member 15 (see FIG. 7) and the misalignment prevention plate for the light support member 16 (see FIG. 8). Its shape is not particularly limited, and it may be omitted if it is not necessary for mounting the LED light 14. In addition, if the light clip 17 is omitted, the shadow generating and guiding protruding surface 12a8 will have a guide function when the LED light 14 is attached.

一方、突出板取付板部１２ｂには、図４（ａ），（ｂ）に示すようにＬＥＤライト取付板部１２ａ側の面に突出板１３を取付けるため、上方に向かって開口したＬ字形状のＬ型掛止部１２ｂ１，１２ｂ２が被掛止部として上下方向に所定間隔を空けて設けられていると共に、突出板取付板部１２ｂ下端部からＬ型掛止部１２ｂ１，１２ｂ２とは反対側に向って９０度曲がって、天井用石膏ボード（Ｐｂ）３ｄ端部を支持すると共に天井用石膏ボード（Ｐｂ）３ｄ端部を隠す天井用石膏ボード端部支持片１２ｂ３が設けられている。 On the other hand, in order to attach the protruding plate 13 to the surface of the LED light mounting plate portion 12a as shown in Figures 4(a) and (b), L-shaped L-shaped hanging portions 12b1, 12b2 that open upward are provided at a predetermined interval in the vertical direction as hanging portions , and a ceiling gypsum board end support piece 12b3 is provided that is bent 90 degrees from the lower end of the protruding plate mounting plate portion 12b toward the opposite side to the L-shaped hanging portions 12b1, 12b2 and supports the end of the ceiling gypsum board (Pb) 3d and hides the end of the ceiling gypsum board (Pb) 3d.

尚、突出板取付板部１２ｂのＬ型掛止部１２ｂ１よりも上方には、図２で示したように適宜間隔で熱抜き孔兼配線孔１２ｂ４が設けられている。 In addition, above the L-shaped hook portion 12b1 of the protruding plate mounting plate portion 12b, heat release holes and wiring holes 12b4 are provided at appropriate intervals as shown in Figure 2.

（突出板１３）
突出板１３は、図５（ａ），（ｂ）に示すような断面形状の形材をベース部材１１およびライト支持部材１２と同様に作業や運搬等に便利な例えば１．５ｍ～３ｍ程度の任意の長さで切断して継ぎ合せて使用するもので、ライト支持部材１２の突出板取付板部１２ｂの被掛止部としてのＬ型掛止部１２ｂ１，１２ｂ２に掛止するため、突出板１３の背面側、すなわち図５（ｂ）右側の上下には、Ｌ型掛止部１２ｂ１，１２ｂ２とは逆に下方に向かって開口した開口した逆Ｌ字形状の逆Ｌ型掛止部１３ａ，１３ｂを掛止部として設けている。 (Protruding plate 13)
The protruding plate 13 is used by cutting and joining a shaped material having a cross-sectional shape as shown in Figures 5(a) and (b) to any length, for example, about 1.5 m to 3 m, which is convenient for work and transportation, in the same way as the base member 11 and the light support member 12. In order to hook it to the L-shaped hanging portions 12b1, 12b2 that serve as the hooked portions of the protruding plate mounting plate portion 12b of the light support member 12, the back side of the protruding plate 13, i.e., the top and bottom of the right side of Figure 5(b) are provided with inverted L-shaped hanging portions 13a, 13b that open downward, opposite to the L-shaped hanging portions 12b1, 12b2, as hanging portions .

また、突出板１３の前面側、すなわち図５（ｂ）左側の上下には、ＬＥＤライト１４の光が直接照射され、その照射光を建物の軽量鉄骨板２ａに向かって反射する傾斜面からなる照射光反射面１３ｃと、照射光反射面１３ｃ下端部から所定角度（約１００度。）の角度で折り曲げられて照射光反射面１３ｃよりも下方に設けられ、ＬＥＤライト１４を斜め下方から見え難く隠す傾斜面のライト目隠し面１３ｄとを有する。 In addition, on the front side of the protruding plate 13, i.e., on the top and bottom of the left side of Figure 5 (b), there are an irradiation light reflecting surface 13c consisting of an inclined surface that is directly irradiated with light from the LED light 14 and reflects the irradiated light toward the light steel frame plate 2a of the building, and a light concealing surface 13d, which is an inclined surface that is bent at a predetermined angle (approximately 100 degrees) from the lower end of the irradiation light reflecting surface 13c and is located below the irradiation light reflecting surface 13c, hiding the LED light 14 so that it is difficult to see it from diagonally below.

ここで、本実施形態の間接照明器具１では、図５（ｂ）に示すように照射光反射面１３ｃの上下方向の長さＬ１は、ライト目隠し面１３ｄの上下方向の長さＬ２よりも長く、すなわちＬ１＞Ｌ２にしている。 Here, in the indirect lighting device 1 of this embodiment, as shown in FIG. 5(b), the vertical length L1 of the irradiation light reflecting surface 13c is longer than the vertical length L2 of the light concealing surface 13d, i.e., L1 > L2.

これにより、照射光反射面１３ｃの面積がライト目隠し面１３ｄの面積よりも大きくなるので、ＬＥＤライト１４の照射光の反射効率が向上し、反射効率が同じであればＬ１＝Ｌ２等の突出板よりも突出板１３の大きさや重量等が小さくなり、コストを低減することが出来ると共に、軽量化による作業効率も向上させている。 As a result, the area of the irradiated light reflecting surface 13c is larger than the area of the light concealing surface 13d, improving the reflection efficiency of the light irradiated by the LED light 14, and while the reflection efficiency is the same, the size and weight of the protruding plate 13 are smaller than those of a protruding plate with L1 = L2, etc., allowing for cost reduction and improving work efficiency through weight reduction.

また、Ｌ１＞Ｌ２にすると、照射光反射面１３ｃとライト目隠し面１３ｄとの境界（稜線）１３ｅの高さが低くなり、その境界（稜線）１３ｅとＬＥＤライト１４との間の間隔やスペースを大きく確保することが出来るため、ＬＥＤライト１４を交換する際に突出板１３を取り外す際、作業スペースを十分に確保することが可能となり、ＬＥＤライト１４交換時の作業性も向上させることが出来る。 In addition, when L1>L2, the height of the boundary (ridge) 13e between the irradiation light reflecting surface 13c and the light concealing surface 13d is lowered, and a larger gap or space can be secured between the boundary (ridge) 13e and the LED light 14. This makes it possible to secure sufficient working space when removing the protruding plate 13 to replace the LED light 14, and improves workability when replacing the LED light 14.

また、本実施形態の間接照明器具１では、図１や図６（ａ）等から明らかなように照射光反射面１３ｃとライト目隠し面１３ｄとの境界（稜線）１３ｅは、突出板１３をライト支持部材１２に掛止して取り付けた際、ＬＥＤライト１４のライト支持部材１２側の端部から鉛直方向に下した延長線ＶＬ１よりも建物の軽量鉄骨板２ａ側に突出し、かつ、ＬＥＤライト１４の中心から鉛直方向に下した延長線ＶＬ２よりは建物の軽量鉄骨板２ａ側に突出しないような高さに形成している。 In addition, in the indirect lighting device 1 of this embodiment, as is clear from Figures 1 and 6(a), the boundary (ridge line) 13e between the irradiated light reflecting surface 13c and the light concealing surface 13d is formed at a height such that when the protruding plate 13 is hooked onto the light support member 12 and attached, it protrudes toward the light-gauge steel frame plate 2a of the building beyond the extension line VL1 extending vertically down from the end of the LED light 14 on the light support member 12 side, but does not protrude toward the light-gauge steel frame plate 2a of the building beyond the extension line VL2 extending vertically down from the center of the LED light 14.

これは、本実施形態の間接照明器具１では、上述したように軽量鉄骨板２ａに壁用石膏ボード（Ｐｂ）２ｂを２枚貼り付けた後のスリットの幅Ｗ１（図１参照。）が５５ｍｍ程度というように従来の間接明器具におけるスリットの幅よりもかなり細い幅を想定しており、人の頭の大きさや壁用石膏ボード（Ｐｂ）２ｂ表面から５５ｍｍという近距離に通常の人は近付かないこと等の室内における人の位置や動線等を考慮すると、照射光反射面１３ｃとライト目隠し面１３ｄとの境界（稜線）１３ｅがＬＥＤライト１４のライト支持部材１２側の端部から鉛直方向に下した延長線ＶＬ１よりも建物の軽量鉄骨板２ａ側に突出していれば、ＬＥＤライト１４の中心から鉛直方向に下した延長線ＶＬ２を超えなくても十分にその下に居る人がＬＥＤライト１４を直視できず、ＬＥＤライト１４の目隠し効果を有するからである。 In the indirect lighting device 1 of this embodiment, as described above, the width W1 (see FIG. 1) of the slit after two sheets of wall plasterboard (Pb) 2b are attached to the lightweight steel frame plate 2a is assumed to be about 55 mm, which is considerably narrower than the width of the slit in a conventional indirect lighting device. Considering the size of a person's head and the fact that most people do not approach the surface of the wall plasterboard (Pb) 2b at a close distance of 55 mm, and the position and movement of people in the room, if the boundary (ridge line) 13e between the irradiation light reflecting surface 13c and the light concealing surface 13d protrudes toward the lightweight steel frame plate 2a of the building beyond the extension line VL1 extending vertically down from the end of the LED light 14 on the light support member 12 side, even if it does not exceed the extension line VL2 extending vertically down from the center of the LED light 14, people below it will be unable to look directly at the LED light 14, and the LED light 14 will have a concealing effect.

また、照射光反射面１３ｃとライト目隠し面１３ｄとの境界（稜線）１３ｅがＬＥＤライト１４のＬＥＤライト１４の中心から鉛直方向に下した延長線ＶＬ２を超えると、その分だけさらにＬＥＤライト１４の目隠し効果は向上するが、ＬＥＤライト１４を交換等する際に、突出板１３とＬＥＤライト１４が干渉して、突出板１４およびＬＥＤライト１４が取外し難くなり、ＬＥＤライト１４交換時の作業性を悪化させるおそれがあるため、境界（稜線）１３ｅが延長線ＶＬ１を超えるものの延長線ＶＬ２を超えないようにしている。ただし、照射光反射面１３ｃとライト目隠し面１３ｄとの境界（稜線）１３ｅが延長線ＶＬ２を超えていても勿論構わない。 In addition, if the boundary (ridge line) 13e between the irradiation light reflecting surface 13c and the light concealing surface 13d exceeds the extension line VL2 vertically downward from the center of the LED light 14, the concealing effect of the LED light 14 will be improved by that amount, but when replacing the LED light 14, the protruding plate 13 and the LED light 14 may interfere with each other, making it difficult to remove the protruding plate 14 and the LED light 14 and reducing the workability when replacing the LED light 14. Therefore, the boundary (ridge line) 13e is designed to exceed the extension line VL1 but not the extension line VL2. However, it is of course acceptable for the boundary (ridge line) 13e between the irradiation light reflecting surface 13c and the light concealing surface 13d to exceed the extension line VL2.

（ベース部材用目違い防止プレート１５）
ベース部材用目違い防止プレート１５は、上述したようにベース部材１１，１１同士を段差なく継ぎ合せるためのジョイント材であり、図７に示すように継ぎ合せるべきベース部材１１，１１の端部を突き合わせ、これらベース部材１１，１１の継目に重なるようにベース部材用目違い防止プレート１５をベース部材１１，１１それぞれの目違い防止プレート押え片１１ａ１および目違い防止プレート押え片１１ｂ８と目違い防止プレート当接用凸部１１ｂ９との間に挿入される所定長さの長方形状のプレートである。 (Base member misalignment prevention plate 15)
As described above, the misalignment prevention plate 15 for base members is a joint material for joining the base members 11, 11 together without any steps. As shown in Figure 7, the ends of the base members 11, 11 to be joined are butted together, and the misalignment prevention plate 15 for base members is a rectangular plate of a predetermined length that is inserted between the misalignment prevention plate pressing pieces 11a1 and misalignment prevention plate pressing pieces 11b8 of the base members 11, 11 and the misalignment prevention plate abutment convex portions 11b9 so that it overlaps the joints of the base members 11, 11.

（ライト支持部材用目違い防止プレート１６）
ライト支持部材用目違い防止プレート１６は、ライト支持部材１２，１２同士を段差なく継ぎ合せるためのジョイント材であり、図８に示すように継ぎ合せるべきライト支持部材１２，１２の端部を突き合わせ、これライト支持部材１２，１２の継目に重なるようにライト支持部材用目違い防止プレート１６をライト支持部材１２，１２それぞれの目違い防止プレート装着用凹部１２ａ３に挿入して、その短手方向の両端部を目違い防止プレート押え片１２ａ４，１２ａ５で押さえられる所定長さの長方形状のプレートである。 (Light support member misalignment prevention plate 16)
The misalignment prevention plate 16 for light support members is a joint material for joining light support members 12, 12 together without any steps. As shown in Figure 8, the ends of the light support members 12, 12 to be joined are butted together, and the misalignment prevention plate 16 for light support members is inserted into the misalignment prevention plate attachment recesses 12a3 of each light support member 12, 12 so that it overlaps the joints of the light support members 12, 12, and both ends in the short direction are held down by the misalignment prevention plate holding pieces 12a4, 12a5. It is a rectangular plate of a predetermined length.

＜実施形態の間接照明器具１の取付方法１，２＞
次に、以上のように構成された実施形態の間接照明器具１の取付方法１，２について説明する。 <Methods 1 and 2 of mounting the indirect lighting device 1 according to the embodiment>
Next, a description will be given of mounting methods 1 and 2 of the indirect lighting device 1 according to the embodiment configured as above.

（取付方法１；軽量鉄骨板２ａに予め壁用石膏ボード２ｂが取り付けられていない場合）
取付方法１の場合、実施形態の間接照明器具１の取付け前の状態は、図９（ａ）に示すように建物の室内に、壁２を構成する軽量鉄骨板２ａが設けられていると共に、天井３側は、野縁受け３ａに野縁クリップ３ｂを介して野縁３ｃが設けられているものの、壁用石膏ボード（Ｐｂ）２ｂや天井用石膏ボード（Ｐｂ）３ｄは取り付けられてない。 (Installation method 1: When the wall gypsum board 2b is not installed in advance on the lightweight steel frame plate 2a)
In the case of mounting method 1, the state before mounting the indirect lighting fixture 1 of the embodiment is as shown in Figure 9 (a) in which a lightweight steel frame plate 2a constituting a wall 2 is provided inside the room of a building, and on the ceiling 3 side, a rafter 3c is provided on a rafter receiver 3a via a rafter clip 3b, but a wall gypsum board (Pb) 2b and a ceiling gypsum board (Pb) 3d are not attached.

図９（ａ）に示すような状態の建物の室内に、実施形態の間接照明器具１を取付ける場合、まず、図９（ｂ）に示すように間接照明器具１を構成するベース部材１１を上下方向２箇所で、かつ、ベース部材１１の長手方向に数十ｃｍ間隔でタッピングビス１８ａによって軽量鉄骨板２ａに固定していく。 When installing the indirect lighting fixture 1 of the embodiment in a room of a building in a state as shown in FIG. 9(a), first, as shown in FIG. 9(b), the base member 11 constituting the indirect lighting fixture 1 is fixed to the light-gauge steel frame plate 2a at two locations in the vertical direction and at intervals of several tens of centimeters along the longitudinal direction of the base member 11 with tapping screws 18a.

軽量鉄骨板２ａへのベース部材１１の固定が完了すると、続いて図１０（ａ）に示すようにベース部材１１の下方かライト支持部材１２を押し上げた後、軽量鉄骨板２ａ側にズラして、図１０（ｂ）に示すようにベース部材１１のライト支持部材取付板部１１ｂの下面側のＬ字形状の３つのＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６の内、壁２側から遠い２つのＬ型第１嵌合部１１ｂ４およびＬ型第２嵌合部１１ｂ５にそれぞれライト支持部材１２の逆Ｌ字形状の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２に嵌合させて仮固定（仮留め）する。 When the base member 11 has been fixed to the light steel frame plate 2a, the light support member 12 is then pushed up from below the base member 11 as shown in FIG. 10(a), and then shifted toward the light steel frame plate 2a. As shown in FIG. 10(b), of the three L-shaped first L-shaped fittings 11b4 to 11b6 on the underside of the light support member mounting plate section 11b of the base member 11, the two L-shaped first fittings 11b4 and second L-shaped fittings 11b5 that are furthest from the wall 2 are fitted into the inverted L-shaped first fittings 12a1 and second fittings 12a2 of the light support member 12, respectively, for temporary fixation (temporary fastening).

ベース部材１１へのライト支持部材１２の取付けに３つのＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６の内、壁２側から遠い２つのＬ型第１嵌合部１１ｂ４およびＬ型第２嵌合部１１ｂ５を使用する理由は、取付方法１の場合、後述するように実施形態の間接照明器具１の取付け後に軽量鉄骨板２ａに壁用石膏ボード（Ｐｂ）２ｂを取付けるため、そのスペースを確保する必要があるからである。 The reason why, of the three L-shaped first fitting portion 11b4 to L-shaped third fitting portion 11b6, the two L-shaped first fitting portion 11b4 and the L-shaped second fitting portion 11b5 that are farthest from the wall 2 side are used to attach the light support member 12 to the base member 11 is that, in the case of mounting method 1, as described below, it is necessary to secure space for mounting the wall gypsum board (Pb) 2b to the lightweight steel frame plate 2a after mounting the indirect lighting fixture 1 of the embodiment.

尚、図１０（ｂ）に示すベース部材１１側のＬ型第１嵌合部１１ｂ４およびＬ型第２嵌合部１１ｂ５と、ライト支持部材１２側の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２との嵌合関係を拡大して示すと、図６（ｂ）に示すようになる。 The fitting relationship between the first L-shaped fitting portion 11b4 and the second L-shaped fitting portion 11b5 on the base member 11 side shown in FIG. 10(b) and the first inverted L-shaped fitting portion 12a1 and the second inverted L-shaped fitting portion 12a2 on the light support member 12 side is shown in an enlarged view in FIG. 6(b).

ここで、図６（ｂ）から明らかなように、この取付方法１の嵌合関係の場合、ベース部材１１側のＬ型第１嵌合部１１ｂ４下端部だけでなく第２垂下片１１ｂ２下端部がライト支持部材１２側のＬＥＤライト取付板部１２ａ上面に当接するため、ベース部材１１にライト支持部材１２を安定した状態でかつ正確に取り付けることができる。 As is clear from FIG. 6(b), in the case of the fitting relationship of this mounting method 1, not only the lower end of the L-shaped first fitting portion 11b4 on the base member 11 side but also the lower end of the second hanging piece 11b2 abuts against the upper surface of the LED light mounting plate portion 12a on the light support member 12 side, so the light support member 12 can be attached to the base member 11 in a stable and accurate manner.

次に、図１０（ａ）に示すようにライトクリップ１７をタッピングビス１８ｂ等でライト支持部材１２のＬＥＤライト取付板部１２ａに固定し、その後、図１０（ｂ）に示すようにライト支持部材１２の長手方向に所定間隔で低頭テクスビス１８ｃ等によってライト支持部材１２をベース部材１１に固定し、その後、ライト支持部材１２に固定したライトクリップ１７にＬＥＤライト１４を取付ける。 Next, as shown in FIG. 10(a), the light clip 17 is fixed to the LED light mounting plate portion 12a of the light support member 12 with tapping screws 18b or the like, and then, as shown in FIG. 10(b), the light support member 12 is fixed to the base member 11 with low-head tex screws 18c or the like at predetermined intervals along the length of the light support member 12, and then the LED light 14 is attached to the light clip 17 fixed to the light support member 12.

尚、ＬＥＤライト取付板部１２ａの下面側には、ＬＥＤライト取付面１２ａ７よりも低く形成された影部生成兼ガイド用突出面１２ａ８が設けられているため、ライトクリップ１７をＬＥＤライト取付板部１２ａに固定する際、影部生成兼ガイド用突出面１２ａ８のガイド機能によって狭い場所でも容易に取り付けることが出来る。 The underside of the LED light mounting plate 12a is provided with a shadow-generating and guide protruding surface 12a8 that is lower than the LED light mounting surface 12a7. When fixing the light clip 17 to the LED light mounting plate 12a, the guide function of the shadow-generating and guide protruding surface 12a8 allows easy installation even in narrow spaces.

ベース部材１１へのライト支持部材１２およびＬＥＤライト１４の取付が完了すると、図１１（ａ）の矢印に示すように突出板１３をライト支持部材１２の突出板取付板部１２ｂに押し当てた後、引下げて、突出板１３の逆Ｌ型掛止部１３ａ，１３ｂをそれぞれライト支持部材１２のＬ型掛止部１２ｂ１，１２ｂ２に掛止して突出板１３をライト支持部材１２に取付ける。 When the attachment of the light support member 12 and the LED light 14 to the base member 11 is completed, the protruding plate 13 is pressed against the protruding plate attachment plate portion 12b of the light support member 12 as shown by the arrow in Figure 11 (a), and then pulled down to hook the inverted L-shaped hook portions 13a and 13b of the protruding plate 13 onto the L-shaped hook portions 12b1 and 12b2 of the light support member 12, respectively, and attach the protruding plate 13 to the light support member 12.

その後は、図１１（ｂ）に示すように、軽量鉄骨板（ＬＧＳ）２ａに２枚目の壁用石膏ボード（Ｐｂ）２ｂ表面がＬＥＤライト取付板部１２ａ先端の壁用石膏ボード上端部隠し片１２ａ６（図４（ａ），（ｂ）や図６（ｂ）参照。）当接又は隣接するように２枚取付けると共に、野縁３ｃに天井用石膏ボード（Ｐｂ）３ｄを２枚取付ける。 After that, as shown in Figure 11 (b), the second wall gypsum board (Pb) 2b is attached to the light-gauge steel frame (LGS) 2a so that its surface abuts or is adjacent to the wall gypsum board upper end concealing piece 12a6 at the tip of the LED light mounting plate portion 12a (see Figures 4 (a) and (b) and Figure 6 (b)). Two ceiling gypsum boards (Pb) 3d are attached to the rough joists 3c.

ここで、ＬＥＤライト取付板部１２ａ先端の壁用石膏ボード上端部隠し片１２ａ６は、図４（ａ），（ｂ）や図６（ｂ）等に示すように、影部生成兼ガイド用突出面１２ａ８よりも高い位置（ベース部材１１側）に形成され、壁用石膏ボード上端部隠し片１２ａ６と影部生成兼ガイド用突出面１２ａ８との間の上下方向の段差があることで、ＬＥＤライト１４からの光によって、あるいは下から人が見上げたときに、スリット状の影部が形成されるため、壁用石膏ボード（Ｐｂ）２ｂの上端部やその撓み等を下方にいる人に気付き難くすることができ、意匠性を向上させることが出来る。 Here, as shown in Figures 4(a), (b) and 6(b), the wall plasterboard top end concealing piece 12a6 at the tip of the LED light mounting plate 12a is formed at a higher position (on the base member 11 side) than the shadow generating and guiding protruding surface 12a8, and due to the vertical step between the wall plasterboard top end concealing piece 12a6 and the shadow generating and guiding protruding surface 12a8, a slit-shaped shadow is formed by the light from the LED light 14 or when a person looks up from below, making it difficult for people below to notice the top end of the wall plasterboard (Pb) 2b or its bending, etc., and improving the design.

そして、別のベース部材１１を壁２と平行に継ぎ合わせていく場合には、ベース部材用目違い防止プレート１５をベース部材１１，１１同士の継ぎ目に重なるように壁固定板部１１ａの目違い防止プレート押え片１１ａ１と、目違い防止プレート押え片１１ｂ８との間に横方向からスライドして挿入する一方、別のライト支持部材１２を壁２と平行に継ぎ合わせていく場合には、ライト支持部材用目違い防止プレート１６をライト支持部材１２，１２同士の継ぎ目に重なるように目違い防止プレート装着用凹部１２ａ３にスライドして挿入し、目違い防止プレート押え片１２ａ４，１２ａ５との間で目違い防止プレート装着用凹部１２ａ３を押える。尚、この場合のベース部材用目違い防止プレート１５およびライト支持部材用目違い防止プレート１６の挿入状態は、図６（ｂ）に拡大して示している。 When another base member 11 is joined parallel to the wall 2, the misalignment prevention plate 15 for the base member is inserted between the misalignment prevention plate pressing piece 11a1 of the wall fixing plate part 11a and the misalignment prevention plate pressing piece 11b8 by sliding it from the side so that it overlaps with the joint between the base members 11, 11, while when another light support member 12 is joined parallel to the wall 2, the misalignment prevention plate 16 for the light support member is inserted by sliding it into the misalignment prevention plate mounting recess 12a3 so that it overlaps with the joint between the light support members 12, 12, and the misalignment prevention plate mounting recess 12a3 is pressed between the misalignment prevention plate pressing pieces 12a4, 12a5. The inserted state of the misalignment prevention plate 15 for the base member and the misalignment prevention plate 16 for the light support member in this case is shown enlarged in FIG. 6(b).

（取付方法２；軽量鉄骨板２ａに予め壁用石膏ボード２ｂが取り付けられている場合）
上記取付方法１の説明では、軽量鉄骨板２ａに実施形態の間接照明器具１の取付け後に、壁用石膏ボード（Ｐｂ）２ｂを取付けるため、図９～図１１に示すように、ベース部材１１へのライト支持部材１２の取付けの際に、３つのＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６の内、壁２側から遠い２つのＬ型第１嵌合部１１ｂ４およびＬ型第２嵌合部１１ｂ５を選択してライト支持部材１２の逆Ｌ字形状の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２に嵌合させて仮固定（仮留め）して説明したが、軽量鉄骨板２ａに予め壁用石膏ボード（Ｐｂ）２ｂが取り付けられていて、壁用石膏ボード（Ｐｂ）２ｂを介して軽量鉄骨板２ａに実施形態の間接照明器具１の取付ける取付方法２の場合には、スリットの幅Ｗ１を狭くするため、図１２（ａ），（ｂ）に示すように３つのＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６の内、壁２側に近い２つのＬ型第２嵌合部１１ｂ５およびＬ型第３嵌合部１１ｂ６それぞれにライト支持部材１２の逆Ｌ字形状の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２を嵌合させて仮固定（仮留め）し、その後、低頭テクスビス１８ｃ等によってライト支持部材１２をベース部材１１に固定する。 (Installation method 2: When the wall gypsum board 2b is already installed on the lightweight steel frame plate 2a)
In the above description of the mounting method 1, in order to mount the wall gypsum board (Pb) 2b after mounting the indirect lighting fixture 1 of the embodiment to the lightweight steel frame plate 2a, when mounting the light support member 12 to the base member 11, as shown in Figs. 9 to 11, the two L-shaped first fitting portion 11b4 and the L-shaped second fitting portion 11b5, which are farthest from the wall 2 side, are selected from the three L-shaped first fitting portion 11b4 to the L-shaped third fitting portion 11b6, and are fitted into the inverted L-shaped first fitting portion 12a1 and the inverted L-shaped second fitting portion 12a2 of the light support member 12 for temporary fixing (temporarily fastening). However, if the wall gypsum board (Pb) 2b is mounted to the lightweight steel frame plate 2a in advance, In the case of mounting method 2 in which the indirect lighting fixture 1 of the embodiment is mounted on a light steel frame plate 2a via a wall plasterboard (Pb) 2b, in order to narrow the slit width W1, as shown in Figures 12(a) and 12(b), the inverted L-shaped first fitting portion 12a1 and the second fitting portion 12a2 of the light support member 12 are fitted into the two L-shaped second fitting portion 11b5 and the L-shaped third fitting portion 11b6 which are closer to the wall 2 side out of the three L-shaped first fitting portion 11b4 to the L-shaped third fitting portion 11b6, respectively, for temporary fixation (temporary fastening), and then the light support member 12 is fixed to the base member 11 with low-head tex screws 18c or the like.

ここで、この取付方法２の嵌合関係の場合、図１２（ｂ）等に示すように少なくともベース部材１１のＬ型第２嵌合部１１ｂ５下端部および第３垂下片１１ｂ３下端部がライト支持部材１２のＬＥＤライト取付板部１２ａ上面に当接するため、図６（ｂ）等に示す取付方法１の嵌合関係の場合と同様に、ベース部材１１にライト支持部材１２を安定した状態でかつ正確に取り付けることができる。尚、この取付け方法２の場合、図１２（ｂ）等に示すように、さらにベース部材１１の壁用石膏ボード当接面１１ｂ７下面が壁用石膏ボード上端部隠し片１２ａ６上面にも当接しているので、この点でもベース部材１１にライト支持部材１２を安定した状態でかつ正確に取り付けることができる。 Here, in the case of the fitting relationship of this mounting method 2, as shown in FIG. 12(b) and the like, at least the lower end of the L-shaped second fitting portion 11b5 and the lower end of the third hanging piece 11b3 of the base member 11 abut the upper surface of the LED light mounting plate portion 12a of the light support member 12, so that the light support member 12 can be stably and accurately attached to the base member 11, as in the case of the fitting relationship of mounting method 1 shown in FIG. 6(b) and the like. In addition, in the case of mounting method 2, as shown in FIG. 12(b) and the like, the lower surface of the wall gypsum board abutment surface 11b7 of the base member 11 also abuts the upper surface of the wall gypsum board upper end concealment piece 12a6, so that the light support member 12 can be stably and accurately attached to the base member 11 in this respect as well.

また、軽量鉄骨板２ａに予め壁用石膏ボード（Ｐｂ）２ｂが取り付けられていても、壁用石膏ボード（Ｐｂ）２ｂの高さが足りず、壁用石膏ボード（Ｐｂ）２ｂを介して軽量鉄骨板２ａに実施形態の間接照明器具１の取付けることができない場合には、図１３（ａ），（ｂ）に示すように壁用石膏ボード（Ｐｂ）２ｂと同厚のスペーサー１９，１９’を介して軽量鉄骨板２ａに実施形態の間接照明器具１を取付け、スリットの幅Ｗ１を狭くするため、図１３に示すように３つのＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６の内、壁２側に近い２つのＬ型第２嵌合部１１ｂ５およびＬ型第３嵌合部１１ｂ６にそれぞれライト支持部材１２の逆Ｌ字形状の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２に嵌合させて仮固定（仮留め）し、その後、低頭テクスビス１８ｃ等によって固定する。 In addition, even if the wall gypsum board (Pb) 2b is attached to the light-weight steel frame plate 2a in advance, if the height of the wall gypsum board (Pb) 2b is insufficient and the indirect lighting device 1 of the embodiment cannot be attached to the light-weight steel frame plate 2a via the wall gypsum board (Pb) 2b, as shown in Figures 13 (a) and (b), the indirect lighting device 1 of the embodiment is attached to the light-weight steel frame plate 2a via spacers 19, 19' having the same thickness as the wall gypsum board (Pb) 2b. In order to narrow the width W1 of the slit, as shown in FIG. 13, of the three L-shaped first fitting portion 11b4 to L-shaped third fitting portion 11b6, the two L-shaped second fitting portion 11b5 and L-shaped third fitting portion 11b6 that are closest to the wall 2 are fitted into the inverted L-shaped first fitting portion 12a1 and the inverted L-shaped second fitting portion 12a2 of the light support member 12, respectively, for temporary fixation (temporary fastening), and then fixed with low-head tex screws 18c or the like.

これにより、実施形態の間接照明器具１を取付ける際、現場によっては軽量鉄骨板２ａに壁用石膏ボード（Ｐｂ）２ｂが固定されていなかったり、予め固定されている場合、さらには予め固定されていても壁用石膏ボード（Ｐｂ）２ｂの厚さが異なる場合等、種々のケースがあるが、そのような種々の現場の場合にも、３つのＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６の内、壁２側に遠いあるいは壁２側に近い２つのＬ字嵌合部を選択して、ライト支持部材１２の逆Ｌ字形状の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２に嵌合させて仮固定（仮留め）して、スリットの幅Ｗ１（図１や図６（ａ）等参照。）を容易に狭くすることが出来るので、この点でも作業性を向上させることが出来ると共に、意匠性を向上させることが出来る。 As a result, when installing the indirect lighting fixture 1 of the embodiment, there are various cases, such as when the wall gypsum board (Pb) 2b is not fixed to the lightweight steel frame plate 2a at some sites, when it is fixed in advance, and even when it is fixed in advance, the thickness of the wall gypsum board (Pb) 2b is different. Even in such various site cases, two L-shaped fitting parts, out of the three L-shaped first fitting parts 11b4 to the L-shaped third fitting part 11b6, that are farther from the wall 2 side or closer to the wall 2 side are selected and fitted into the inverted L-shaped first fitting part 12a1 and the inverted L-shaped second fitting part 12a2 of the light support member 12, and temporarily fixed (temporarily fastened), so that the width W1 of the slit (see Figures 1 and 6(a), etc.) can be easily narrowed, which also improves workability and design.

＜本発明に係る実施形態の間接照明器具１のまとめ＞
以上説明したように、本発明に係る実施形態の間接照明器具１は、ライト支持部材１２に設けた突出板１３は、ＬＥＤライト１４の光が直接照射され、その照射光を建物の軽量鉄骨板２ａに向かって反射する照射光反射面１３ｃと、照射光反射面１３ｃよりも下方に設けられＬＥＤライト１４を下方から見え難く隠すライト目隠し面１３ｄとを有する。 <Summary of the indirect lighting device 1 according to the embodiment of the present invention>
As described above, in the indirect lighting fixture 1 of the embodiment of the present invention, the protruding plate 13 provided on the light support member 12 has an irradiation light reflecting surface 13c that is directly irradiated with light from the LED light 14 and reflects the irradiated light toward the light steel frame plate 2a of the building, and a light concealing surface 13d that is disposed below the irradiation light reflecting surface 13c and conceals the LED light 14 so that it is difficult to see from below.

そのため、蛍光ランプに代ってＬＥＤライト１４を使用すると共に、照射光反射面１３ｃとライト目隠し面１３ｄを有する突出板１３が反射板と遮光板（遮蔽板）の機能も有するので、部品点数を削減して、間接照明器具１全体を小型化することが出来ると共に、意匠性も向上させることが出来る。 Therefore, by using LED lights 14 instead of fluorescent lamps, and the protruding plate 13 with the irradiated light reflecting surface 13c and the light concealing surface 13d also functions as a reflector and a light shielding plate (shielding plate), the number of parts can be reduced, making the indirect lighting fixture 1 smaller as a whole, and improving the design.

また、本発明に係る実施形態の間接照明器具１では、図５（ｂ）に示すように突出板１３における照射光反射面１３ｃの上下方向の長さＬ１がライト目隠し面１３ｄの上下方向の長さＬ２よりも大きく構成している。 In addition, in the indirect lighting device 1 according to the embodiment of the present invention, as shown in FIG. 5(b), the vertical length L1 of the light reflecting surface 13c of the protruding plate 13 is configured to be greater than the vertical length L2 of the light concealing surface 13d.

そのため、照射光反射面１３ｃの面積がライト目隠し面１３ｄの面積よりも大きくなるので、ＬＥＤライト１４の照射光の反射効率が向上し、Ｌ１＝Ｌ２等の突出板よりも突出板１３の大きさや重量等が小さくなり、コストを低減することが出来ると共に、軽量化による作業効率を向上させることが出来る。 As a result, the area of the irradiated light reflecting surface 13c is larger than the area of the light concealing surface 13d, improving the reflection efficiency of the light irradiated by the LED light 14, and the size and weight of the protruding plate 13 are smaller than those of protruding plates with L1 = L2, etc., reducing costs and improving work efficiency through weight reduction.

また、Ｌ１＞Ｌ２であるため、照射光反射面１３ｃとライト目隠し面１３ｄとの境界（稜線）１３ｅの高さが低くなり、その境界（稜線）１３ｅとＬＥＤライト１４との間の間隔やスペースを大きく確保することが出来るため、図１１（ａ），（ｂ）等に示すようにＬＥＤライト１４の取付け後に、突出板１３を取付ける際に、作業スペースを十分に確保することができ、突出板１３の取付け作業性を向上させることが出来る。 In addition, because L1>L2, the height of the boundary (ridge) 13e between the irradiation light reflecting surface 13c and the light concealing surface 13d is low, and a large gap or space can be secured between the boundary (ridge) 13e and the LED light 14. As a result, as shown in Figures 11(a) and (b), etc., when attaching the protruding plate 13 after attaching the LED light 14, sufficient working space can be secured, improving the workability of attaching the protruding plate 13.

また、ＬＥＤライト１４を交換する際は、スリット幅Ｗ１（図１や図６等参照。）が５５ｍｍ前後と非常に狭いため、突出板１３を取外して行う場合が多いと考えられるが、Ｌ１＞Ｌ２であるため、突出板１３を取外す際に突出板１３がＬＥＤライト１４に干渉し難くなり、ＬＥＤライト１４の交換時の作業性を向上させることが出来る。尚、突出板１３を取外さずにＬＥＤライト１４を交換する場合でも、Ｌ１＝Ｌ２等の突出板の場合よりも、Ｌ１＞Ｌ２の突出板１３の方がＬＥＤライト１４下方の空間が大きくなるので、ＬＥＤライト１４の交換時の作業性を向上させることが出来る。 In addition, when replacing the LED light 14, the slit width W1 (see Figures 1 and 6, etc.) is very narrow at around 55 mm, so it is likely that this will be done by removing the protruding plate 13; however, since L1 > L2, the protruding plate 13 is less likely to interfere with the LED light 14 when it is removed, improving workability when replacing the LED light 14. Even when replacing the LED light 14 without removing the protruding plate 13, a protruding plate 13 with L1 > L2 leaves a larger space below the LED light 14 than a protruding plate with L1 = L2, etc., so workability when replacing the LED light 14 can be improved.

また、本発明に係る実施形態の間接照明器具１では、図６（ａ）に示すように突出板１３における照射光反射面１３ｃとライト目隠し面１３ｄとの境界１３ｅがＬＥＤライト１４のライト支持部材１２側の端部から鉛直方向に下した延長線ＶＬ１よりも建物の軽量鉄骨板２ａ側に突出し、かつ、ＬＥＤライト１４の中心から鉛直方向に下した延長線ＶＬ２よりは建物の軽量鉄骨板２ａ側に突出しないような高さに形成している。 In addition, in the indirect lighting device 1 according to the embodiment of the present invention, as shown in FIG. 6(a), the boundary 13e between the light reflecting surface 13c and the light concealing surface 13d in the protruding plate 13 protrudes toward the light-gauge steel frame plate 2a of the building beyond the extension line VL1 extending vertically down from the end of the LED light 14 on the light support member 12 side, but is formed at a height such that it does not protrude toward the light-gauge steel frame plate 2a of the building beyond the extension line VL2 extending vertically down from the center of the LED light 14.

そのため、本実施形態におけるスリット幅Ｗ１（図１や図６等参照。）の５５ｍｍ前後という従来の間接明器具におけるスリットの幅よりもかなり細い幅という点と、人の頭の大きさや壁用石膏ボード（Ｐｂ）２ｂ表面から５５ｍｍ前後という近距離に人が近付かない点等を考慮すると、照射光反射面１３ｃとライト目隠し面１３ｄとの境界（稜線）１３ｅがＬＥＤライト１４のライト支持部材１２側の端部から鉛直方向に下した延長線ＶＬ１よりも建物の軽量鉄骨板２ａ側に突出していれば、ＬＥＤライト１４の中心から鉛直方向に下した延長線ＶＬ２を超えなくても十分にＬＥＤライト１４の目隠し効果を十分に発揮することが出来る。 Therefore, considering that the slit width W1 in this embodiment (see Figures 1 and 6, etc.) is around 55 mm, which is considerably narrower than the width of the slit in a conventional indirect lighting device, and that people do not approach within a short distance of around 55 mm from the surface of the wall plasterboard (Pb) 2b, as long as the boundary (ridge line) 13e between the irradiation light reflecting surface 13c and the light concealing surface 13d protrudes toward the light-gauge steel frame plate 2a of the building beyond the extension line VL1 extending vertically down from the end of the LED light 14 on the light support member 12 side, the concealing effect of the LED light 14 can be fully exerted even if it does not exceed the extension line VL2 extending vertically down from the center of the LED light 14.

また、本発明に係る実施形態の間接照明器具１では、ベース部材１１のライト支持部材取付板部１１ｂ下面側には、ｎ＝２として（ｎ＋１）個である３つのＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６を所定間隔で設ける一方、ライト支持部材取付板部１１ｂ下面に対面（対向）するライト支持部材１２のＬＥＤライト取付板部１２ａの上面側には、３つのＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６の内、隣接する２つのＬ字嵌合部、つまりＬ型第１嵌合部１１ｂ４とＬ型第２嵌合部１１ｂ５、またはＬ型第２嵌合部１１ｂ５とＬ型第３嵌合部１１ｂ６にそれぞれ嵌合する逆Ｌ字形状の２つ（ｎ個）の逆Ｌ型第１嵌合部１２ａ１と逆Ｌ型第２嵌合部１２ａ２とを設けている。 In the indirect lighting device 1 according to the embodiment of the present invention, three (n+1) L-shaped first fittings 11b4 to L-shaped third fittings 11b6 (where n=2) are provided at a predetermined interval on the underside of the light support member mounting plate 11b of the base member 11, while two (n) inverted L-shaped first fittings 12a1 and second fittings 12a2 are provided on the upper side of the LED light mounting plate 12a of the light support member 12, which faces the underside of the light support member mounting plate 11b, that is, two adjacent L-shaped fittings among the three L-shaped first fittings 11b4 to L-shaped third fittings 11b6, that is, the L-shaped first fittings 11b4 and the L-shaped second fittings 11b5, or the L-shaped second fittings 11b5 and the L-shaped third fittings 11b6.

そのため、本発明に係る実施形態の間接照明器具１では、ライト支持部材１２側の逆Ｌ型第１嵌合部１２ａ１と逆Ｌ型第２嵌合部１２ａ２とがベース部材１１側のＬ型第１嵌合部１１ｂ４とＬ型第２嵌合部１１ｂ５、またはＬ型第２嵌合部１１ｂ５とＬ型第３嵌合部１１ｂ６にそれぞれ嵌合することによってベース部材１１に対するライト支持部材１２の取付け位置を変更することが出来る。 Therefore, in the indirect lighting device 1 according to the embodiment of the present invention, the first inverted L-shaped fitting portion 12a1 and the second inverted L-shaped fitting portion 12a2 on the light support member 12 side can be fitted into the first L-shaped fitting portion 11b4 and the second L-shaped fitting portion 11b5, or the second L-shaped fitting portion 11b5 and the third L-shaped fitting portion 11b6 on the base member 11 side, respectively, thereby changing the mounting position of the light support member 12 relative to the base member 11.

その結果、図９～図１１に示すように軽量鉄骨板２ａに実施形態の間接照明器具１の取付け後に、壁用石膏ボード（Ｐｂ）２ｂを取付ける場合には、図６（ａ），（ｂ）等に示すように軽量鉄骨板２ａから遠い２つのＬ型第１嵌合部１１ｂ４およびＬ型第２嵌合部１１ｂ５にそれぞれライト支持部材１２の逆Ｌ字形状の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２に嵌合させて約５５ｍｍのスリット幅Ｗ１（図１や図６等参照。）を確保する一方、軽量鉄骨板２ａに予め壁用石膏ボード（Ｐｂ）２ｂが取り付けられていて、壁用石膏ボード（Ｐｂ）２ｂを介して軽量鉄骨板２ａに実施形態の間接照明器具１の取付ける場合には、図１２（ａ）、（ｂ）に示すように壁２側に近い２つのＬ型第２嵌合部１１ｂ５およびＬ型第３嵌合部１１ｂ６にそれぞれライト支持部材１２の逆Ｌ字形状の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２に嵌合させて約５５ｍｍのスリット幅Ｗ１（図１や図６等参照。）を確保することが可能となり、間接照明器具１取付け時の壁用石膏ボード（Ｐｂ）２ｂの施行の有無にも容易に対応することができ、作業性を向上させることが出来る。 As a result, when attaching the wall plasterboard (Pb) 2b after attaching the indirect lighting device 1 of the embodiment to the lightweight steel frame plate 2a as shown in Figures 9 to 11, as shown in Figures 6 (a) and (b), the two L-shaped first fitting portion 11b4 and the L-shaped second fitting portion 11b5 far from the lightweight steel frame plate 2a are fitted into the inverted L-shaped first fitting portion 12a1 and the inverted L-shaped second fitting portion 12a2 of the light support member 12, respectively, to secure a slit width W1 of about 55 mm (see Figures 1 and 6, etc.). On the other hand, since the wall plasterboard (Pb) 2b has already been attached to the lightweight steel frame plate 2a, the wall plasterboard (Pb) 2b is attached to the light steel frame plate 2a. When mounting the indirect lighting fixture 1 of the embodiment to the light steel frame plate 2a via the board (Pb) 2b, as shown in Figures 12(a) and (b), the two L-shaped second fitting parts 11b5 and L-shaped third fitting parts 11b6 close to the wall 2 side can be fitted into the inverted L-shaped first fitting part 12a1 and the inverted L-shaped second fitting part 12a2 of the light support member 12, respectively, to ensure a slit width W1 of approximately 55 mm (see Figures 1 and 6, etc.). This makes it easy to respond to the presence or absence of wall plasterboard (Pb) 2b when mounting the indirect lighting fixture 1, improving workability.

また、本発明に係る実施形態の間接照明器具１では、建物の壁２に固定されるベース部材１１と、ＬＥＤライト１４が取り付けられるライト支持部材１２とを別部材で構成するだけでなく、反射板と遮光板（遮蔽板）の機能を有する突出板１３もライト支持部材１２とは別部材で構成したため、間接照明器具１を取付ける建物の階高や建物の用途（ホテル、博物館、図書館、一般住宅等）の違いによってＬＥＤライト１４からの照射光の反射角度や反射量等を変更する場合やＬＥＤライト１４を斜め下方から見え難く調整する際に、間接照明器具１全体を変更せずに照射光反射面１３ｃやライト目隠し面１３ｄの大きさや角度、高さ（突出量）等を変更した突出板１３に交換すれば、突出板１３の変更のみで対応することが出来るので、この点でもコストを低減することが出来る。 In addition, in the indirect lighting device 1 according to the embodiment of the present invention, not only are the base member 11 fixed to the wall 2 of the building and the light support member 12 to which the LED light 14 is attached constructed as separate members, but the protruding plate 13, which functions as a reflector and a light shielding plate (shielding plate), is also constructed as a separate member from the light support member 12. Therefore, when changing the reflection angle or reflection amount of the light emitted from the LED light 14 depending on the floor height of the building to which the indirect lighting device 1 is attached or the purpose of the building (hotel, museum, library, general residence, etc.) or when adjusting the LED light 14 so that it is difficult to see from diagonally below, it is possible to change the protruding plate 13 only by changing the size, angle, height (protruding amount) of the light reflecting surface 13c or the light concealing surface 13d, without changing the entire indirect lighting device 1, and this also reduces costs.

尚、上記実施形態の説明では、間接照明器具１を構成するベース部材１１やライト支持部材１２、突出板１３を別部材で構成して組み付けるように説明したが、本発明では、これに限らず、ベース部材１１とライト支持部材１２が一体で突出板１３のみ別部材で構成しても勿論良い。 In the above embodiment, the base member 11, light support member 12, and protruding plate 13 that constitute the indirect lighting device 1 are described as being constructed as separate members and assembled together, but the present invention is not limited to this, and it is of course also possible for the base member 11 and the light support member 12 to be integrated and for only the protruding plate 13 to be constructed as a separate member .

また、上記実施形態の説明では、建物の壁２にベース部材１１を固定し、そのベース部材１１にＬＥＤライト１４を取付けるライト支持部材１２を固定するように説明したが、本発明ではこれに限らず、建物の壁２でなく天井３に間接照明器具１を取付ける場合には、ベース部材１１を省略しても良いし、ライト支持部材１２ではなく壁２側のベース部材１１等にＬＥＤライト１４を取付けるように構成しても勿論良い。 In addition, in the above embodiment, the base member 11 is fixed to the wall 2 of the building, and the light support member 12 for mounting the LED light 14 is fixed to the base member 11. However, the present invention is not limited to this. If the indirect lighting device 1 is mounted on the ceiling 3 of the building instead of the wall 2, the base member 11 may be omitted, and the LED light 14 may be mounted on the base member 11 on the wall 2 side instead of the light support member 12.

また、上記実施形態の説明では、ｎ＝２として、ベース部材１１のライト支持部材取付板部１１ｂ下面側には、３（ｎ＋１）個のＬ型第１嵌合部１１ｂ４～Ｌ型第３嵌合部１１ｂ６を所定間隔で設ける一方、ライト支持部材１２のＬＥＤライト取付板部１２ａの上面側には、２（ｎ）個の逆Ｌ型第１嵌合部１２ａ１および逆Ｌ型第２嵌合部１２ａ２を設けて説明したが、本発明ではこれに限らず、ｎ＝１でも、あるいはｎが３以上の場合でも勿論良い。 In the above embodiment, n=2, and 3 (n+1) L-shaped first fitting portions 11b4 to 11b6 are provided at a predetermined interval on the underside of the light support member mounting plate portion 11b of the base member 11, while 2 (n) inverted L-shaped first fitting portions 12a1 and inverted L-shaped second fitting portions 12a2 are provided on the upper side of the LED light mounting plate portion 12a of the light support member 12. However, the present invention is not limited to this, and n=1 or n may of course be 3 or more.

また、上記実施形態の説明では、突出板１３は、照射光反射面１３ｃ下端部から所定角度（約１００度。）の角度で折り曲げてライト目隠し面１３ｄを設けて説明したが、本発明では、これに限らず、照射光反射面１３ｃの裏側をライト目隠し面１３ｄとしても良いし、照射光反射面１３ｃおよびライト目隠し面１３ｄは平面ではなく湾曲面で構成しても勿論良い。 In addition, in the description of the above embodiment, the protruding plate 13 is bent at a predetermined angle (approximately 100 degrees) from the lower end of the irradiated light reflecting surface 13c to provide the light concealing surface 13d, but the present invention is not limited to this, and the back side of the irradiated light reflecting surface 13c may be the light concealing surface 13d, and the irradiated light reflecting surface 13c and the light concealing surface 13d may of course be configured as curved surfaces rather than flat surfaces.

１間接照明器具
１１ベース部材
１１ａ壁固定板部
１１ａ１目違い防止プレート押え片
１１ｂライト支持部材取付板部
１１ｂ１第１垂下片
１１ｂ２第２垂下片
１１ｂ３第３垂下片
１１ｂ４Ｌ型第１嵌合部
１１ｂ５Ｌ型第２嵌合部
１１ｂ６Ｌ型第３嵌合部
１１ｂ７壁用石膏ボード当接面
１１ｂ８目違い防止プレート押え片
１２ライト支持部材
１２ａＬＥＤライト取付板部
１２ａ１逆Ｌ型第１嵌合部
１２ａ２逆Ｌ型第２嵌合部
１２ａ３目違い防止プレート装着用凹部
１２ａ４，１２ａ５目違い防止プレート押え片
１２ａ６壁用石膏ボード上端部隠し片
１２ａ７ＬＥＤライト取付面
１２ａ８影部生成兼ガイド用突出面
１２ｂ突出板取付板部
１２ｂ１，１２ｂ２Ｌ型掛止部（被掛止部）
１２ｂ３天井用石膏ボード端部支持片
１２ｂ４熱抜き孔兼配線孔
１３突出板
１３ａ，１３ｂ逆Ｌ型掛止部（掛止部）
１３ｃ照射光反射面
１３ｄライト目隠し面
１３ｅ境界
１４ＬＥＤライト
１５ベース部材用目違い防止プレート
１６ライト支持部材用目違い防止プレート
１７ライトクリップ
１８ａ～１８ｃビス
１９，１９’ スペーサー
２壁
２ａ軽量鉄骨板（ＬＧＳ）
２ｂ壁用石膏ボード（Ｐｂ）
３天井
３ａ野縁受け
３ｂ野縁クリップ
３ｃ野縁
３ｄ天井用石膏ボード（Ｐｂ） LIST OF SYMBOLS 1 Indirect lighting fixture 11 Base member 11a Wall fixing plate 11a1 Misalignment prevention plate pressing piece 11b Light support member mounting plate 11b1 First hanging piece 11b2 Second hanging piece 11b3 Third hanging piece 11b4 L-shaped first fitting portion 11b5 L-shaped second fitting portion 11b6 L-shaped third fitting portion 11b7 Wall plasterboard abutment surface 11b8 Misalignment prevention plate pressing piece 12 Light support member 12a LED light mounting plate 12a1 Reverse L-shaped first fitting portion 12a2 Reverse L-shaped second fitting portion 12a3 Misalignment prevention plate mounting recess 12a4, 12a5 Misalignment prevention plate pressing piece 12a6 Wall plasterboard upper end concealing piece 12a7 LED light mounting surface 12a8 Shadow generating and guiding protruding surface 12b Protruding plate mounting plate portion 12b1, 12b2 L-shaped hook portion (hooked portion)
12b3 Ceiling gypsum board end support piece 12b4 Heat release hole/wiring hole 13 Projecting plate
13a, 13b Inverted L-shaped hook portion (hook portion)
13c: Irradiation light reflecting surface 13d: Light concealing surface 13e: Boundary 14: LED light 15: Misalignment prevention plate for base member 16: Misalignment prevention plate for light support member 17: Light clip 18a to 18c: Screws 19, 19': Spacer 2: Wall 2a: Light-gauge steel plate (LGS)
2b Wall gypsum board (Pb)
3 Ceiling 3a Rafter 3b Rafter clip 3c Rafter 3d Ceiling gypsum board (Pb)

Claims

a light mounting plate section on the underside of which a light is mounted; and a protruding plate mounting plate section which extends downward from the opposite side to the wall of the building through the mounting position of the light on the light mounting plate section and has a hook portion for detachably mounting a protruding plate which protrudes toward the wall of the building below the light;
The protruding plate has:
A light reflecting surface that reflects the light emitted from the light toward a wall surface of a building;
A light concealing surface that hides the light so that it is difficult to see from below the protruding plate ;
The indirect lighting fixture is characterized in that a hook portion is provided that is detachably hooked onto the hooked portion of the protruding plate mounting plate .

2. The indirect lighting device according to claim 1,
The light concealing surface is provided below the irradiation light reflecting surface,
An indirect lighting device characterized in that the vertical length of the irradiation light reflecting surface of the protruding plate is greater than the vertical length of the light concealing surface.

2. The indirect lighting device according to claim 1,
The light concealing surface is provided below the irradiation light reflecting surface,
An indirect lighting device characterized in that the boundary between the light reflecting surface and the light concealing surface of the protruding plate protrudes toward the wall surface of the building further than an extension line extending vertically down from the end of the light on the protruding plate side .

In the indirect lighting device according to any one of claims 1 to 3,
a base member having a wall fixing plate portion to be fixed to a wall of a building and a light support member mounting plate portion extending from the wall fixing plate portion in a direction away from the wall of the building;
a light support member having the light mounting plate portion and the protruding plate mounting plate portion, the upper surface of which is attached to the light support member mounting plate portion of the base member so as to face each other;
The base member has n+1 (n is a natural number) or more base member side fitting portions at predetermined intervals in a direction away from the wall of the building on the lower surface side of the light support member mounting plate portion of the base member.
An indirect lighting device characterized in that an upper surface side of the light mounting plate portion of the light support member is provided with n light support member side fitting portions, which can change the mounting position of the light support member relative to the base member by selecting and fitting n of the n+1 or more base member side fitting portions.