JP5600657B2

JP5600657B2 - Lighting device

Info

Publication number: JP5600657B2
Application number: JP2011236241A
Authority: JP
Inventors: 恭宏小平; 曜命神永
Original assignee: Koito Electric IndustriesLtd
Current assignee: Koito Electric IndustriesLtd
Priority date: 2011-10-27
Filing date: 2011-10-27
Publication date: 2014-10-01
Anticipated expiration: 2031-10-27
Also published as: JP2013091472A

Description

本発明は、乗物の客室内における天井部に配置され、光源を、該光源から出射される光が少なくとも側方に向かう状態に組み込むケーシングを有する照明装置に関し、特に鉄道車両の客室内における照明に用いられるものである。 The present invention relates to an illuminating device that is disposed on a ceiling in a passenger cabin of a vehicle and has a casing that incorporates a light source in a state where light emitted from the light source is directed to at least a side, and particularly for illumination in a passenger compartment of a railway vehicle. It is used.

従来、鉄道車両や航空機等の客室内に用いる照明装置としては、蛍光管がむき出しの状態で天井部に取り付けられ、特別な配光制御は意図しないものが多かった。このような照明装置は、デザインが蛍光管の形状に制約されるため、装置のデザインの自由度が乏しく、また、蛍光管からの直接光が眩しく、特に客室内の窓上等にある広告を見る場合には、蛍光管の眩しさにより広告が見えにくいという問題があった。 Conventionally, as a lighting device used in a passenger room such as a railway vehicle or an aircraft, a fluorescent tube is attached to the ceiling portion in an exposed state, and there are many cases where special light distribution control is not intended. Such a lighting device is limited in design by the shape of the fluorescent tube, so the degree of freedom in the design of the device is poor, and the direct light from the fluorescent tube is dazzling, especially on advertisements on windows in the cabin. When viewing, there is a problem that the advertisement is difficult to see due to the glare of the fluorescent tube.

そこで最近は、蛍光灯の代わりにＬＥＤランプを光源としたり、直接光ではなく間接光により客室内を照らすように構成された照明装置が主流となっている。例えば、特許文献１には、ケーシング内に表裏両面から発光する薄型照明灯を組み込み、前記ケーシングの開口面を覆う下面カバーに、前記薄型照明灯に対向する直接照明窓と、その外側に位置する間接照明窓とを設け、直接光および間接光を下方の車室内に向けて照射する照明装置が開示されている。 Therefore, recently, an illuminating device configured to use an LED lamp as a light source instead of a fluorescent lamp, or to illuminate a cabin by indirect light instead of direct light has become mainstream. For example, in Patent Document 1, a thin illuminating lamp that emits light from both front and back surfaces is incorporated in a casing, and a direct illumination window that faces the thin illuminating lamp is disposed on a lower surface cover that covers the opening surface of the casing, and is positioned outside the same. An indirect illumination window is provided, and an illumination device that irradiates direct light and indirect light toward a lower vehicle interior is disclosed.

また、特許文献２には、ハウジング内に光源が両端に取り付けられた導光棒を収納し、前記ハウジングは、透光性を有する側壁部と、遮光性を有する底壁部とを備え、導光棒から照射された光は、ハウジングの側壁部を透過して車室内に間接光として照射され、導光棒から斜め上方に照射された光は、天井に反射されて車室内に間接光として照射される照明装置が開示されている。 In Patent Document 2, light guide rods with light sources attached to both ends are housed in a housing, and the housing includes a side wall portion having translucency and a bottom wall portion having light shielding properties. The light emitted from the light rod passes through the side wall portion of the housing and is irradiated as indirect light into the vehicle interior, and the light irradiated obliquely upward from the light guide rod is reflected by the ceiling and becomes indirect light in the vehicle interior. An illumination device to be illuminated is disclosed.

特開２００７−３０２１６２号公報JP 2007-302162 A 特開２００９−９６３８８号公報JP 2009-96388 A

しかしながら、前述した特許文献１，２に開示された従来の技術では、何れも車室内における下方への照射だけを意図しており、例えば鉄道車両の客室内のように、窓上となる天井部の隅に沿って様々な広告が展開されているような場合には、これら広告面のうち特に天井部に沿った面に対しては、直接光も間接光も届かないため、暗くて広告面が見えにくいという問題があった。 However, in the conventional techniques disclosed in Patent Documents 1 and 2 described above, both are intended only for downward irradiation in the passenger compartment, and for example, a ceiling portion on a window as in a passenger room of a railway vehicle. When various advertisements are deployed along the corners of these areas, it is dark and the advertisement surface is not directly or indirect, especially on the surface along the ceiling. There was a problem that was difficult to see.

また、何れの従来の技術でも、ケーシングやハウジングの開口を覆う下面カバーや底壁部がケーシング等から着脱し得る別体から構成されているにも関わらず、乗客が直接触れられる位置に配されており、直接触れることがなくても荷物等がぶつかる可能性は高い。これら別体であるカバー部分に何らかの衝撃が加わり、ケーシング等から予期せず外れたり、あるいは万一破損した場合には、そのまま客室内に落下してしまうため、安全上の問題があった。 Further, in any conventional technique, the lower surface cover and the bottom wall portion covering the opening of the casing and the housing are configured separately from each other so that the passenger can directly touch them. Even if you do not touch it directly, there is a high possibility that your luggage will collide. If some impact is applied to these separate cover parts and they are unexpectedly removed from the casing or if they are damaged, they will fall into the cabin as they are, thus posing a safety problem.

このような従来の技術が有する問題に鑑みて、本件発明者らは特願２０１０−２６６９５１号により、客室内の天井部の隅に沿って展開された広告面に対しても光を照射することができ、また、光源を覆うカバーが万一溶融したとしても、溶解物が下方に落下する虞のない照明装置を既に提案している。
ところが、このような照明装置でも、広告面に対する光の照射はあくまで間接光によるため、広告面を十分に明るく照射することができない虞があった。 In view of such problems of the conventional technology, the inventors of the present invention irradiate light on the advertising surface developed along the corner of the ceiling portion in the cabin according to Japanese Patent Application No. 2010-266951. Moreover, even if the cover that covers the light source is melted, an illumination device that has no possibility of the molten material falling downward has already been proposed.
However, even with such a lighting device, since the irradiation of light on the advertising surface is only based on indirect light, there is a possibility that the advertising surface cannot be irradiated sufficiently brightly.

本発明は、以上のような従来の技術の有する問題点に着目してなされたものであり、１つの装置で直接光と間接光をそれぞれ目的に応じて分けて照射することにより、客室内は間接光により柔らかく照らすることができ、客室内の天井部付近は直接光により明るく照らすことができ、しかも、光源を覆うカバー部分が破損しにくく、万一破損しても破片が客室内に落下することを防止できる照明装置を提供することを目的としている。 The present invention has been made paying attention to the problems of the prior art as described above. By irradiating direct light and indirect light separately according to the purpose with one apparatus, soft can Terasuru by indirect light, near with the ceiling of the room can be illuminated brightly by the direct light, moreover, a cover portion covering the light source is resistant to breakage, event broken even debris in the room It aims at providing the illuminating device which can prevent falling.

前述した目的を達成するための本発明の要旨とするところは、以下の各項の発明に存する。
［１］乗物（１）の客室内（２）における天井部（３）に配置され、光源（２０）を、該光源（２０）から出射される光が少なくとも側方に向かう状態に組み込むケーシング（１１，１１Ａ〜１１Ｃ）を有する照明装置（１０，１０Ａ〜１１Ｃ）において、
前記ケーシング（１１，１１Ａ〜１１Ｃ）は、前記光源（２０）から出射された光の一部を下方に向けて反射し、該反射した間接光により客室内（２）を照らす反射面（１４ａ〜１４ｄ）を内側に備えるケーシング本体（１２，１２Ａ〜１２Ｃ）と、該ケーシング本体（１２，１２Ａ〜１２Ｃ）より下方に一体成形されて垂下し、前記光源（２０）を取り付けるための受け部（１５，１５Ａ〜１５Ｃ）と、から成り、
前記ケーシング（１１，１１Ａ〜１１Ｃ）は、前記光源（２０）から出射された光のうち、前記ケーシング本体（１２，１２Ａ〜１２Ｃ）の端縁と前記受け部（１５，１５Ａ〜１５Ｃ）の端縁との間から直接光が側方に向かう状態に設置されることを特徴とする照明装置（１０，１０Ａ〜１１Ｃ）。 The gist of the present invention for achieving the object described above resides in the inventions of the following items.
[1] A casing (1) that is disposed on the ceiling (3) in the cabin (2) of the vehicle (1) and that incorporates the light source (20) in a state in which the light emitted from the light source (20) is directed at least laterally. 11, 11A to 11C) in the lighting device (10, 10A to 11C),
The casing (11, 11A to 11C) reflects a part of the light emitted from the light source (20) downward, and the reflecting surface (14a to 14a) illuminates the cabin (2) by the reflected indirect light. 14d) on the inner side of the casing body (12, 12A-12C), and a receiving part (15) that is integrally formed below the casing body (12, 12A-12C) and hangs down and attaches the light source (20). 15A to 15C), and
Of the light emitted from the light source (20), the casing (11, 11A to 11C) is an edge of the casing body (12, 12A to 12C) and an end of the receiving portion (15, 15A to 15C). lighting device characterized by light directly installed in the Hare state suited laterally from between the edge (10,10A~11C).

［２］前記ケーシング（１１，１１Ａ〜１１Ｃ）は、前記光源（２０）から出射された光のうち、前記ケーシング本体（１２，１２Ａ〜１２Ｃ）の端縁と前記受け部（１５，１５Ａ〜１５Ｃ）の端縁との間から側方に向かう直接光が、前記天井部（３）と側壁面部（４）の境界に沿って照射する状態に設置されることを特徴とする［１］に記載の照明装置（１０，１０Ａ〜１１Ｃ）。 [2] The casing (11, 11A to 11C) includes an edge of the casing body (12, 12A to 12C) and the receiving portion (15, 15A to 15C) out of the light emitted from the light source (20). direct light toward the side from between the edge of), characterized in that installed in a state that elevation irradiation along the boundary of the ceiling (3) and sidewall portions (4) in [1] Illumination device (10,10A-11C) of description.

［３］前記ケーシング（１１，１１Ａ〜１１Ｃ）に対して前記光源（２０）を外側から覆う状態に装着される保護カバー（３０）を有し、
前記受け部（１５，１５Ａ〜１５Ｃ）は、前記保護カバー（３０）の全域に対して鉛直方向に重なる位置まで少なくとも延出し、前記保護カバー（３０）が破損した際にその破片を受け入れる形状に形成されたことを特徴とする［１］または［２］に記載の照明装置（１０，１０Ａ〜１１Ｃ）。 [3] A protective cover (30) attached to the casing (11, 11A to 11C) so as to cover the light source (20) from the outside,
The receiving portion (15, 15A to 15C) extends at least to a position that overlaps the entire area of the protective cover (30) in the vertical direction, and receives the fragments when the protective cover (30) is damaged. The lighting device (10, 10A to 11C) according to [1] or [2], which is formed.

［４］前記ケーシング（１１，１１Ａ）は、長尺に延びており、
前記ケーシング本体（１２，１２Ａ）の長手方向と並行に延びる両側部（１４）は、それぞれ最上端となる中央部（１３）から両側下方に向かって広がるように湾曲した円弧形断面に形成され、該円弧形断面の内側が前記反射面（１４ａ，１４ｂ）として形成され、
前記受け部（１５，１５Ａ）は、前記中央部（１３）から下方に向かって一体に垂下する錨形断面に形成され、
前記ケーシング本体（１２，１２Ａ）の両側部（１４）の下端縁と、前記受け部（１５，１５Ａ）における錨形断面の左右の上端縁は、その間より前記光源（２０）から出射された光を側方に直接照射する位置関係に配置され、
前記光源（２０）は、細幅状に延びる基板（２１）上に複数並べて配列させたＬＥＤ（２２）であり、
前記光源（２０）を含む前記基板（２１）は、前記受け部（１５，１５Ａ）における錨形断面の左右の内側に沿って、それぞれ上向きの角度で側方を向く状態に組み込まれ、
前記保護カバー（３０）は、前記基板（２１）と同じく細幅状に延びる板状に形成され、前記中央部（１３）と前記受け部（１５，１５Ａ）における錨形断面の左右の内側との間に沿って、それぞれ前記基板（２１）を外側から覆う状態に装着されたことを特徴とする［３］に記載の照明装置（１０，１０Ａ）。 [4] The casing (11, 11A) extends long,
Both side portions (14) extending in parallel with the longitudinal direction of the casing main body (12, 12A) are each formed in an arcuate cross section that is curved so as to spread downward from the center portion (13) as the uppermost end. , The inside of the arc-shaped cross section is formed as the reflecting surface (14a, 14b),
The receiving portion (15, 15A) is formed in a bowl-shaped cross section that hangs downward integrally from the central portion (13),
Light emitted from the light source (20) between the lower end edges of both side parts (14) of the casing body (12, 12A) and the upper and lower upper edges of the saddle-shaped cross section of the receiving part (15, 15A) Is arranged in a positional relationship where the light is directly irradiated to the side,
The light source (20) is a plurality of LEDs (22) arranged side by side on a substrate (21) extending in a narrow width,
The substrate (21) including the light source (20) is incorporated in a state of facing sideways at an upward angle, respectively, along the left and right inner sides of the bowl-shaped cross section of the receiving portion (15, 15A),
The protective cover (30) is formed in a plate shape extending in a narrow width like the substrate (21), and the right and left inner sides of the saddle-shaped cross section in the central portion (13) and the receiving portions (15, 15A). The lighting device (10, 10A) according to [3], wherein the lighting device (10, 10A) is mounted so as to cover each of the substrates (21) from the outside.

［５］前記ケーシング（１１，１１Ａ，１１Ｂ）は、前記天井部（３）の基準面より内側に埋め込まれた状態に設置されることを特徴とする［１］，［２］，［３］または［４］に記載の照明装置（１０，１０Ａ，１０Ｂ）。 [5] [1], [2], [3], wherein the casing (11, 11A, 11B) is installed in a state of being embedded inside a reference surface of the ceiling (3). Or the illuminating device (10, 10A, 10B) as described in [4].

［６］前記ケーシング（１１Ｃ）は、前記天井部（３）の一部として一体に形成されたことを特徴とする［１］，［２］，［３］または［４］に記載の照明装置（１０Ｃ）。 [6] The lighting device according to [1], [2], [3], or [4], wherein the casing (11C) is integrally formed as a part of the ceiling (3). (10C).

次に、前述した解決手段に基づく作用を説明する。
前記［１］に記載の照明装置（１０，１０Ａ〜１１Ｃ）によれば、光源（２０）は少なくとも側方に光を出射する状態でケーシング（１１，１１Ａ〜１１Ｃ）に組み込まれており、光源（２０）から出射された光の一部は、ケーシング本体（１２，１２Ａ〜１２Ｃ）にある反射面（１４ａ〜１４ｄ）によって下方へ反射される。この反射した間接光によって、客室内（２）は照らされる。また、光源（２０）から出射された光の一部が、客室側である下方にも向かう場合、かかる下方に向かう直接光は、ケーシング本体（１２，１２Ａ〜１２Ｃ）より下方に一体成形されて垂下した受け部（１５，１５Ａ〜１５Ｃ）によって遮られる。 Next, the operation based on the above solution will be described.
According to the illumination device (10, 10A to 11C) described in [1], the light source (20) is incorporated in the casing (11, 11A to 11C) in a state of emitting light at least to the side, Part of the light emitted from (20) is reflected downward by the reflecting surfaces (14a to 14d) in the casing body (12, 12A to 12C). The cabin (2) is illuminated by the reflected indirect light. Further, when a part of the light emitted from the light source (20) also travels downward on the cabin side, the direct light traveling downward is integrally formed below the casing body (12, 12A to 12C). It is blocked by the hanging receiving parts (15, 15A to 15C).

これにより、光源（２０）からの直接光が客室内（２）に届くことはなく、前述したように客室内（２）は反射面（１４ａ〜１４ｄ）により反射拡散された間接光によって照らされる。従って、客室内（２）における眩しさを低減して柔らかく照らすことができ、また、間接照明としての演出効果も高めることができる。ここで反射面（１４ａ〜１４ｄ）の形状を工夫することにより、客室内（２）での目的や用途に応じた様々な配光制御も可能となる。また、受け部（１５，１５Ａ〜１５Ｃ）は、ケーシング本体（１２，１２Ａ〜１２Ｃ）と一体成形されるものであり、着脱自在な別部材のように外れる虞はない。 Thereby, the direct light from the light source (20) does not reach the cabin (2), and the cabin (2) is illuminated by the indirect light reflected and diffused by the reflecting surfaces (14a to 14d) as described above. . Therefore, the dazzling in the cabin (2) can be reduced and softly illuminated, and the effect of indirect lighting can be enhanced. Here, by devising the shape of the reflecting surfaces (14a to 14d), various light distribution controls according to the purpose and application in the cabin (2) can be performed. Further, the receiving portions (15, 15A to 15C) are integrally formed with the casing body (12, 12A to 12C), and there is no possibility that the receiving portions (15, 15A to 15C) may come off like separate removable members.

ケーシング（１１，１１Ａ〜１１Ｃ）は、光源（２０）から出射された光のうち、ケーシング本体（１２，１２Ａ〜１２Ｃ）の端縁と受け部（１５，１５Ａ〜１５Ｃ）の端縁との間から直接光が側方に向かう状態に設置される。そのため、従来のように客室内（２）において座席のある領域を照射するだけでなく、特に、客室内（２）の天井部（３）と側壁面部（４）の境界付近、すなわち一般に窓上の広告（６）スペースに対しては、直接光を照射することで明るく目立たせることができる。 A casing (11,11A-11C) is between the edge of a casing main body (12,12A-12C) and the edge of a receiving part (15,15A-15C) among the lights radiate | emitted from the light source (20). directly from the light is installed in the Hare state suited to the side. Therefore, not only does it irradiate the area where the seat is located in the cabin (2) as in the prior art, but particularly in the vicinity of the boundary between the ceiling (3) and the side wall surface portion (4) in the cabin (2), that is, generally on a window. The advertisement (6) can be made bright and conspicuous by direct light irradiation.

より具体的には、前記［２］に記載したように、ケーシング（１１，１１Ａ〜１１Ｃ）を、光源（２０）から出射された光のうち、ケーシング本体（１２，１２Ａ〜１２Ｃ）の端縁と受け部（１５，１５Ａ〜１５Ｃ）の端縁との間から側方に向かう直接光が、天井部（３）と側壁面部（４）の境界に沿って照射し、当該付近に展開された広告（６）の全面を照射する状態に設置すると良い。ここでの「状態」とは、ケーシング（１１，１１Ａ〜１１Ｃ）の取り付け位置や向き、角度ないし傾斜の姿勢等を意味する。 More specifically, as described in [2] above, the casing (11, 11A to 11C) is used as the edge of the casing body (12, 12A to 12C) out of the light emitted from the light source (20). And direct light directed sideways from between the edges of the receiving portions (15, 15A to 15C) were irradiated along the boundary between the ceiling portion (3) and the side wall surface portion (4), and developed in the vicinity . It is good to install in the state which irradiates the whole surface of advertisement (6). Here, the “state” means the mounting position and orientation of the casing (11, 11A to 11C), the angle or the inclination posture, and the like.

これにより、天井部（３）と側壁面部（４）の境界に沿って、例えば、天井面（天井部（３）の基準面）から側壁面部（４）に亘り曲がるように展開された広告（６）の全面、特に天井面に沿った部分にも直接光を照射することができる。また、１つの照明装置（１０，１０Ａ〜１１Ｃ）によって広告（６）の全面を照射する配光とすることが可能となり、広告（６）に班、影、線等が生じることなく、乗客からは広告（６）がより見やすくなる。 Thereby, along the boundary between the ceiling part (3) and the side wall surface part (4), for example, an advertisement (being developed so as to bend from the ceiling surface (reference surface of the ceiling part (3)) to the side wall surface part (4) ( The entire surface of 6), in particular, the portion along the ceiling surface can be directly irradiated with light. Moreover, it becomes possible to set it as the light distribution which irradiates the whole surface of advertisement (6) by one illumination device (10,10A-11C), and a passenger, without a group, a shadow, a line, etc. appearing in advertisement (6) Makes the advertisement (6) easier to see.

また、前記［３］に記載の照明装置（１０，１０Ａ〜１１Ｃ）のように、ケーシング（１１，１１Ａ〜１１Ｃ）に、光源（２０）を外側から覆う状態に保護カバー（３０）を装着しても良い。光源（２０）から照射された光は保護カバー（３０）を透過することにより、光源（２０）の輝度が低減されて過度の強い光の照射を防止することができる。また、光源（２０）の故障の原因となり得る他の物体の接触を防ぎ、光源（２０）を保護することができる。 Further, as in the lighting devices (10, 10A to 11C) described in [3], the protective cover (30) is attached to the casing (11, 11A to 11C) so as to cover the light source (20) from the outside. May be. The light emitted from the light source (20) is transmitted through the protective cover (30), so that the luminance of the light source (20) is reduced and excessively strong light irradiation can be prevented. Moreover, the contact of the other object which may cause the failure of the light source (20) can be prevented, and the light source (20) can be protected.

保護カバー（３０）は、前記受け部（１５，１５Ａ〜１５Ｃ）のようにケーシング本体（１２，１２Ａ〜１２Ｃ）に一体に設けられるものではなく、後付けされる別部材であり、外から衝撃が加わると外れたり破損する虞がある。ここで受け部（１５，１５Ａ〜１５Ｃ）は、保護カバー（３０）の全域に対して鉛直方向に重なる位置まで少なくとも延出し、保護カバー（３０）が破損した際には、その破片を受け入れる形状に形成されている。従って、保護カバー（３０）が予期せず外れたり万一破損した場合には、その破片は受け部（１５，１５Ａ〜１５Ｃ）によって受け止められて客室内（２）に落下することはない。これにより、十分な安全性を確保することができる。 The protective cover (30) is not provided integrally with the casing body (12, 12A to 12C) like the receiving portions (15, 15A to 15C), but is a separate member that is attached later, and the impact is applied from the outside. If added, it may come off or break. Here, the receiving portion (15, 15A to 15C) extends at least to a position where it overlaps in the vertical direction with respect to the entire area of the protective cover (30), and when the protective cover (30) is damaged, it receives the fragments. Is formed. Therefore, when the protective cover (30) is unexpectedly removed or broken, the fragments are received by the receiving portions (15, 15A to 15C) and do not fall into the cabin (2). Thereby, sufficient safety can be ensured.

前記［４］に記載の照明装置（１０，１０Ａ）によれば、前記ケーシング（１１，１１Ａ）は、長尺に延びており、そのケーシング本体（１２，１２Ａ）の長手方向と並行に延びる両側部（１４）は、それぞれ最上端となる中央部（１３）から両側下方に向かって広がるように湾曲した円弧形断面に形成され、該円弧形断面の内側が前記反射面（１４ａ，１４ｂ）として形成されている。 According to the illuminating device (10, 10A) described in [4], the casing (11, 11A) extends long, and both sides extend in parallel with the longitudinal direction of the casing body (12, 12A). The part (14) is formed in an arc-shaped cross section that is curved so as to spread downward from both sides of the uppermost center part (13), and the inside of the arc-shaped cross section is the reflection surface (14a, 14b). ).

そして、前記受け部（１５，１５Ａ）は、ケーシング本体（１２，１２Ａ）の中央部（１３）から下方に向かって一体に垂下する錨形断面に形成されている。ここでケーシング本体（１２，１２Ａ）の両側部（１４）の下端縁と、受け部（１５，１５Ａ）における錨形断面の左右の上端縁は、その間より前記光源（２０）から出射された光を側方に直接照射する位置関係に配置する。前記光源（２０）は、細幅状に延びる基板（２１）上に複数並べて配列させたＬＥＤ（２２）である。 And the said receiving part (15,15A) is formed in the hook-shaped cross section which hangs down integrally from the center part (13) of a casing main body (12,12A). Here, the lower end edges of both side parts (14) of the casing body (12, 12A) and the upper and lower upper edges of the saddle-shaped cross section of the receiving part (15, 15A) are light emitted from the light source (20) between them. Are arranged in a positional relationship where the light is directly irradiated to the side. The light source (20) is a plurality of LEDs (22) arranged side by side on a substrate (21) extending in a narrow width.

前記光源（２０）を含む前記基板（２１）は、前記受け部（１５，１５Ａ）における錨形断面の左右の内側に沿って、それぞれ上向きの角度で側方を向く状態に組み込まれる。また、前記保護カバー（３０）は、前記基板（２１）と同じく細幅状に延びる板状に形成され、前記中央部（１３）と前記受け部（１５，１５Ａ）における錨形断面の左右の内側との間に沿って、それぞれ前記基板（２１）を外側から覆う状態に装着される。これにより、照明装置（１０，１０Ａ）のユニットが完成する。なお、受け部（１５，１５Ａ）における錨形断面の内側が、保護カバー（３０）の破片等を受け止める空間となる。 The said board | substrate (21) containing the said light source (20) is integrated in the state which faces each side at the upward angle along the left-right inner side of the saddle-shaped cross section in the said receiving part (15,15A). Moreover, the said protective cover (30) is formed in the plate shape extended thinly like the said board | substrate (21), and right and left of the saddle-shaped cross section in the said center part (13) and the said receiving part (15,15A). The substrate (21) is mounted so as to cover the substrate (21) from the outside along the inside. Thereby, the unit of an illuminating device (10, 10A) is completed. In addition, the inner side of the bowl-shaped cross section in the receiving portion (15, 15A) becomes a space for receiving a piece of the protective cover (30).

以上のような各照明装置（１０，１０Ａ，１０Ｂ）は、例えば前記［５］に記載したように、乗物（１）の客室内（２）における天井部（３）の基準面より内側にケーシング（１１，１１Ａ，１１Ｂ）を埋め込む状態に設置すると良い。これにより、客室内（２）における照明による演出効果を高めることができる。 Each lighting device (10, 10A, 10B) as described above has a casing inside the reference plane of the ceiling (3) in the passenger compartment (2) of the vehicle (1) as described in [5] above. (11, 11A, 11B) may be installed in the embedded state. Thereby, the presentation effect by the illumination in a passenger room (2) can be heightened.

さらに、前記［６］に記載したように、前記ケーシング（１１Ｃ）を、天井部（３）の一部として一体に形成しても良い。このような場合には、天井部（３）の基準面との接続箇所に継ぎ目が生じることもなく、外観を美しく仕上げることができる。しかも、反射面（１４ｄ）を広く取れるので、よりいっそう効率が良い客室内（２）における間接照明を実現することができる。 Furthermore, as described in [6] above, the casing (11C) may be integrally formed as a part of the ceiling (3). In such a case, the appearance can be finished beautifully without a seam being produced at the connection point with the reference surface of the ceiling (3). Moreover, since the reflecting surface (14d) can be widened, indirect lighting in the cabin (2) can be realized with even higher efficiency.

本発明に係る照明装置によれば、１つの装置から直接光と間接光をそれぞれ目的に応じて分けて照射することを可能とし、客室内は間接光により柔らかく照らして眩しさを抑制することができ、客室内の天井部付近は直接光により明るく目立たせることができ、しかも、光源を覆うカバー部分が破損しにくいと共に、万一破損しても破片が客室内に落下することを防止することにより、安全性を高めることができる。 According to the lighting device of the present invention, it is possible to irradiate direct light and indirect light separately from one device according to the purpose, and the interior is softly illuminated by indirect light to suppress glare. can, near with the ceiling of the room can stand out bright by direct light, moreover, with a cover portion covering the light source is not easily damaged, debris be damaged in any way is prevented from falling in the room Therefore, safety can be improved.

本発明の第１実施の形態に係る照明装置の一端部を拡大して示す斜視図である。It is a perspective view which expands and shows the one end part of the illuminating device which concerns on 1st Embodiment of this invention. 本発明の第１実施の形態に係る照明装置の全体を示す斜視図である。It is a perspective view which shows the whole illuminating device which concerns on 1st Embodiment of this invention. 本発明の第１実施の形態に係る照明装置を示す縦断面図である。It is a longitudinal cross-sectional view which shows the illuminating device which concerns on 1st Embodiment of this invention. 本発明の第１実施の形態に係る照明装置の直接光および間接光の照射範囲を模式的に示す縦断面図である。It is a longitudinal cross-sectional view which shows typically the irradiation range of the direct light and indirect light of the illuminating device which concerns on 1st Embodiment of this invention. 本発明の第１実施の形態に係る照明装置を鉄道車両の客室内の天井部に取り付けた状態を概略的に示す断面図である。It is sectional drawing which shows roughly the state which attached the illuminating device which concerns on 1st Embodiment of this invention to the ceiling part in the passenger room of a rail vehicle. 本発明の第２実施の形態に係る照明装置を示す縦断面図である。It is a longitudinal cross-sectional view which shows the illuminating device which concerns on 2nd Embodiment of this invention. 本発明の第３実施の形態に係る照明装置を示す縦断面図である。It is a longitudinal cross-sectional view which shows the illuminating device which concerns on 3rd Embodiment of this invention. 本発明の第４実施の形態に係る照明装置を示す縦断面図である。It is a longitudinal cross-sectional view which shows the illuminating device which concerns on 4th Embodiment of this invention.

以下、図面に基づき、本発明を代表する各種実施の形態を説明する。
図１〜図５は、本発明の第１実施の形態を示している。
図１に示すように、照明装置１０は、光源２０を、出射する光が主に側方に向かう状態に組み込むケーシング１１と、前記光源２０を外側から覆う状態で前記ケーシング１１に装着する保護カバー３０とから成る。かかる照明装置１０は、乗物の客室内２における天井部３に配置されるものであるが、以下、鉄道車両１に適用した例について説明する。 Hereinafter, various embodiments representing the present invention will be described with reference to the drawings.
1 to 5 show a first embodiment of the present invention.
As shown in FIG. 1, the lighting device 10 includes a casing 11 that incorporates a light source 20 in a state in which emitted light mainly goes sideways, and a protective cover that is attached to the casing 11 so as to cover the light source 20 from the outside. 30. Although this illuminating device 10 is arrange | positioned at the ceiling part 3 in the passenger compartment 2 of a vehicle, the example applied to the rail vehicle 1 is demonstrated below.

図５に示すように、照明装置１０は、鉄道車両１の客室内２の天井部３に設置されるものであり、天井部３に沿って前後方向に延びるように設置される。照明装置１０は、長手方向に延びる複数のユニットが一列となるように順次繋がれている。ユニットの主要部を成すケーシング１１は、その開口側を下方に向けた状態で天井部３に設置されている。天井部３には、前後方向に延びる中心線を対称軸として、左右対称に並ぶ一対の凹溝３ａ，３ａが形成されており、それぞれの凹溝３ａにケーシング１１は埋設されている。 As shown in FIG. 5, the lighting device 10 is installed on the ceiling portion 3 of the passenger cabin 2 of the railway vehicle 1, and is installed so as to extend in the front-rear direction along the ceiling portion 3. The lighting device 10 is sequentially connected so that a plurality of units extending in the longitudinal direction are arranged in a line. The casing 11 constituting the main part of the unit is installed on the ceiling 3 with its opening side facing downward. A pair of concave grooves 3a, 3a are formed in the ceiling portion 3 so as to be symmetrical with respect to a center line extending in the front-rear direction, and a casing 11 is embedded in each concave groove 3a.

図１〜図３に示すように、ケーシング１１は全体的には長尺に延びた形状であり、ケーシング本体１２と、該ケーシング本体１２より下方に一体に垂下する受け部１５と、から成る。ケーシング１１は、アルミニウム等の金属や不燃性の樹脂等により容易に押出し成形することができる形状となっている。ケーシング本体１２は、後述する光源２０から側方に出射された光を下方に向けて反射し、該反射した間接光により客室内２を照らす反射面１４ａを内側に備えている。 As shown in FIGS. 1 to 3, the casing 11 has an overall shape extending in a long shape, and includes a casing body 12 and a receiving portion 15 that hangs down downward from the casing body 12. The casing 11 has a shape that can be easily extruded using a metal such as aluminum, a nonflammable resin, or the like. The casing body 12 includes a reflection surface 14a that reflects light emitted from a light source 20 to the side, which will be described later, downward, and illuminates the cabin 2 with the reflected indirect light.

詳しく言えばケーシング本体１２は、その長手方向と並行に延びる両側部１４が、それぞれ最上端となる中央部１３から両側下方に向かって広がるように湾曲した円弧形断面に形成され、該円弧形断面の内側が反射面１４ａとして形成されている。このように、ケーシング本体１２は、その断面形状において左右一対となる反射面１４ａを内側に備えている。各反射面１４ａは、光反射効率が高くなる表面処理が施されている。具体的には例えば、白色塗料を塗布したり、あるいは鏡面加工しても良い。 More specifically, the casing main body 12 is formed in an arc-shaped cross section that is curved so that both side portions 14 extending in parallel with the longitudinal direction spread from the center portion 13 that is the uppermost end downward on both sides. The inner side of the cross section is formed as a reflecting surface 14a. As described above, the casing main body 12 includes a pair of left and right reflecting surfaces 14a on the inner side in the cross-sectional shape thereof. Each reflective surface 14a is subjected to a surface treatment that increases the light reflection efficiency. Specifically, for example, a white paint may be applied or mirrored.

図４に示すように、後述する光源２０から左右２方向へ出射された光は、それぞれ光源２０が対向する側にある反射面１４ａにより反射されて下方の客室内２に向かうように設定されている。ただし、各反射面１４ａにより反射された間接光の一部は、次述する受け部１５によって光源２０からの直接光と共に下方への照射が遮られる。なお、各反射面１４ａにより反射された間接光は、受け部１５の下方の位置で交差する（図４参照）。 As shown in FIG. 4, light emitted from the light source 20, which will be described later, in the left and right directions is reflected by the reflecting surface 14 a on the side facing the light source 20 and is directed toward the lower cabin 2. Yes. However, a part of the indirect light reflected by each reflecting surface 14a is blocked from being irradiated downward together with the direct light from the light source 20 by the receiving portion 15 described below. The indirect light reflected by each reflecting surface 14a intersects at a position below the receiving portion 15 (see FIG. 4).

図１〜図３に示すように、受け部１５は、光源２０から出射された光のうち、下方に向かう直接光や、前述した各反射面１４ａにより反射された間接光の一部を遮る部位であり、ケーシング本体１２と一体的に成形されている。詳しく言えば受け部１５は、ケーシング本体１２の中央部１３の中心から下方に向かって一体に垂下する錨形断面に形成されている。かかる受け部１５は、中央部１３の中央より垂下する支持脚１５ａと、該支持脚１５ａの下端より両側上方に向かって湾曲した円弧形断面の底壁１５ｂと、から成る。 As shown in FIGS. 1 to 3, the receiving part 15 blocks a part of the direct light directed downward from the light emitted from the light source 20 and the indirect light reflected by each of the reflection surfaces 14 a described above. And is formed integrally with the casing body 12. Specifically, the receiving portion 15 is formed in a bowl-shaped cross section that hangs downward integrally from the center of the central portion 13 of the casing body 12. The receiving portion 15 includes a support leg 15a that hangs down from the center of the center portion 13, and a bottom wall 15b having an arcuate cross section that curves upward from both ends of the lower end of the support leg 15a.

ケーシング本体１２の両側部１４の下端縁と、受け部１５の底壁１５ｂの上端縁とは、その間より光源２０から出射された光を側方に直接照射する位置関係に配置されている（図４参照）。ケーシング本体１２の中央部１３と受け部１５の底壁１５ｂとの間は、光源２０の収納空間となっており、支持脚１５ａで区画された両側に、それぞれ光源２０が組み込まれている。光源２０の種類は特に限定されないが、ＬＥＤであることが好ましい。ＬＥＤは小型であること、低消費電力であること、長寿命であることという利点を有する。 The lower end edge of the both side parts 14 of the casing body 12 and the upper end edge of the bottom wall 15b of the receiving part 15 are arranged in a positional relationship in which light emitted from the light source 20 is directly irradiated laterally between them (see FIG. 4). The space between the central portion 13 of the casing body 12 and the bottom wall 15b of the receiving portion 15 is a storage space for the light source 20, and the light sources 20 are incorporated on both sides partitioned by the support legs 15a. Although the kind of light source 20 is not specifically limited, It is preferable that it is LED. LEDs have the advantages of small size, low power consumption, and long life.

本実施の形態における光源２０は、細幅状に延びる基板２１上に表面実装型のＬＥＤチップ２２を等間隔に複数配列させて固定したものである。ここでＬＥＤチップ２２は、一般的であるので詳細な説明は省略するが、基板２１に対して直交する光軸を中心に所定角度の放射範囲で光を出射するタイプが用いられる。ＬＥＤチップ２２の発光色は任意に選択できる。基板２１はその一面が実装面であり、該実装面上にＬＥＤチップ２２が電気的に接続される配線回路が形成されている。なお、基板２１の実装面上には、ＬＥＤチップ２２を覆うように蛍光体層を積層させても良い。 The light source 20 in the present embodiment is obtained by fixing a plurality of surface-mounted LED chips 22 arranged at equal intervals on a substrate 21 extending in a narrow width. Here, the LED chip 22 is general and will not be described in detail, but a type that emits light within a radiation range of a predetermined angle around an optical axis orthogonal to the substrate 21 is used. The emission color of the LED chip 22 can be arbitrarily selected. One surface of the substrate 21 is a mounting surface, and a wiring circuit to which the LED chip 22 is electrically connected is formed on the mounting surface. A phosphor layer may be laminated on the mounting surface of the substrate 21 so as to cover the LED chip 22.

図３に示すように、光源２０の基板２１は、ケーシング１１の前記収納空間を仕切る底壁１５ｂの両側に沿って、それぞれ上向きの角度で側方を向く状態に組み込まれている。詳しく言えば、ケーシング本体１２の中央部１３より垂下する支持脚１５ａの両脇と、底壁１５ｂの左右の中程に、互いに対向する一対のレール溝１６，１６が設けられており、各レール溝１６の間に、基板２１の両側端縁がそれぞれ摺動可能に嵌合する状態で取り付けられている。 As shown in FIG. 3, the substrate 21 of the light source 20 is incorporated in a state of facing the side at an upward angle along both sides of the bottom wall 15 b that partitions the storage space of the casing 11. Specifically, a pair of rail grooves 16 and 16 facing each other are provided on both sides of the support leg 15a depending from the central portion 13 of the casing body 12 and in the middle of the left and right sides of the bottom wall 15b. Between the grooves 16, both side edges of the substrate 21 are attached so as to be slidably fitted.

光源２０を外側から覆う保護カバー３０は、前記基板２１と同じく細幅状に延びる同形状の平板状に形成されている。保護カバー３０の材質は、アクリル樹脂やＰＣ樹脂等の光透過性材料であれば特に限定されないが、加工の容易性等の理由からガラスではなく合成樹脂であることが好ましい。なお、保護カバー３０は無色透明の他、有色透明であっても良く、また、保護カバー３０に光拡散剤を含有させて、保護カバー３０内で積極的に光を拡散させても良い。 The protective cover 30 that covers the light source 20 from the outside is formed in a flat plate shape of the same shape that extends in a narrow width like the substrate 21. The material of the protective cover 30 is not particularly limited as long as it is a light transmissive material such as an acrylic resin or a PC resin, but is preferably a synthetic resin instead of glass for reasons such as ease of processing. The protective cover 30 may be colored and transparent as well as colorless and transparent, and the protective cover 30 may contain a light diffusing agent to actively diffuse light within the protective cover 30.

図３に示すように、保護カバー３０は、前記中央部１３と前記受け部１５の底壁１５ｂの内側との間に沿って、それぞれ光源２０の基板２１を外側から覆う状態に装着されている。詳しく言えば、ケーシング本体１２の中央部１３の両端下方と、受け部１５の底壁１５ｂの左右上端縁には、互いに対向する一対のレール溝１７，１７が設けられており、各レール溝１７の間に、保護カバー３０の両側端縁がそれぞれ摺動可能に嵌合する状態で取り付けられている。ここで保護カバー３０は、水平面に対して垂直となる状態に配され、受け部１５の底壁１５ｂの左右上端縁よりやや内側に位置している。 As shown in FIG. 3, the protective cover 30 is mounted so as to cover the substrate 21 of the light source 20 from the outside along the space between the central portion 13 and the inside of the bottom wall 15 b of the receiving portion 15. . Specifically, a pair of rail grooves 17, 17 facing each other are provided below both ends of the central portion 13 of the casing body 12 and on the left and right upper edges of the bottom wall 15 b of the receiving portion 15. In between, both the side edges of the protective cover 30 are slidably fitted. Here, the protective cover 30 is arranged in a state perpendicular to the horizontal plane, and is located slightly inside the left and right upper end edges of the bottom wall 15 b of the receiving portion 15.

このように、受け部１５、特にその底壁１５ｂは、保護カバー３０の全域に対して鉛直方向に重なる位置まで少なくとも延出しており、保護カバー３０が万一破損した際に、その破片（溶融物も含む）を受け入れる形状に形成されている。ここで保護カバー３０は、水平面に対する垂直面をなすことから、下方から乗客の荷物等が直接的には当たりにくい構造となっており、また、万一何らかの衝撃が加わり破損した場合には、その破片は内側に向かうことになり、底壁１５ｂ上に受け止められるようになっている。 In this way, the receiving portion 15, particularly the bottom wall 15 b, extends at least to a position that overlaps the entire area of the protective cover 30 in the vertical direction, and when the protective cover 30 is broken, its fragments (melted) (Including objects). Here, since the protective cover 30 forms a vertical plane with respect to the horizontal plane, it has a structure in which it is difficult for a passenger's luggage or the like to directly hit from below. The debris is directed inward and is received on the bottom wall 15b.

以上のような照明装置１０のケーシング１１は、光源２０から出射された光のうち、ケーシング本体１２の両側部１４の下端縁と、受け部１５の底壁１５ｂの上端縁との間から側方に向かう直接光が、客室内２の天井部３と側壁面部４の境界付近に到達する状態に設置される。詳しく言えば、天井部３と側壁面部４の境界に沿って広告６が展開されており、ケーシング１１の隙間より側方に出射された直接光は、前記広告６の全面（特に天井面に沿った面）に到達する状態に設置される。 The casing 11 of the illuminating device 10 as described above is a side of the light emitted from the light source 20 between the lower end edge of the both side portions 14 of the casing body 12 and the upper end edge of the bottom wall 15b of the receiving portion 15. The direct light heading toward is located in a state of reaching the vicinity of the boundary between the ceiling portion 3 and the side wall surface portion 4 in the cabin 2. Specifically, the advertisement 6 is developed along the boundary between the ceiling portion 3 and the side wall surface portion 4, and the direct light emitted to the side from the gap of the casing 11 is the entire surface of the advertisement 6 (particularly along the ceiling surface). It is installed in a state of reaching the surface.

次に、第１実施の形態に係る照明装置１０の作用について説明する。
図５に示すように、本照明装置１０は、鉄道車両１の客室内２の天井部３に、ケーシング１１をその開口側を下方に向けて凹溝３ａ内に埋め込む状態に設置する。照明装置１０は、ケーシング本体１２の中央部１３の上端面において、取付金具やネジ等の固定手段を介して凹溝３ａに取り付けられる。ここで、照明装置１０のユニットを成すケーシング１１を複数繋げることにより、所望の長さまで適宜延ばすことができる。 Next, the effect | action of the illuminating device 10 which concerns on 1st Embodiment is demonstrated.
As shown in FIG. 5, the present lighting device 10 is installed in the ceiling portion 3 of the passenger compartment 2 of the railway vehicle 1 so that the casing 11 is embedded in the concave groove 3 a with the opening side facing downward. The lighting device 10 is attached to the concave groove 3a on the upper end surface of the central portion 13 of the casing body 12 through fixing means such as a mounting bracket or a screw. Here, by connecting a plurality of casings 11 that form a unit of the lighting device 10, the casing 11 can be appropriately extended to a desired length.

本実施の形態では、ケーシング本体１２の両側部１４の下端縁が天井部３の基準面と同じ高さ位置となるため、照明装置１０と天井部３の一体感が高まる。また、天井部３の中心線を対称軸として、左右対称に並ぶように一対の照明装置１０を設置するから、客室内２を左右両側からバランス良く広範囲に照らすことができる。なお、左右の照明装置１０は、それぞれ個別に点灯制御できるようにしても良い。 In the present embodiment, the lower end edge of both side portions 14 of the casing body 12 is at the same height as the reference surface of the ceiling portion 3, so that the sense of unity between the lighting device 10 and the ceiling portion 3 is enhanced. In addition, since the pair of lighting devices 10 are installed so as to be symmetrically arranged with the center line of the ceiling 3 as the axis of symmetry, the cabin 2 can be illuminated in a wide range from both the left and right sides with a good balance. Note that the left and right illumination devices 10 may be individually controlled to be lit.

しかも、本照明装置１０では、光源２０にＬＥＤチップ２２を用いたことにより、所望の明るさを低い電力消費で得られるばかりでなく、蛍光灯等に比べて装置全体を小型化することができ、乗客に対しての圧迫感が少なく、客室内２に合わせて形状も自由にデザインすることが可能となる。また、ユニットの主要部を成すケーシング１１は、アルミニウム等の金属により容易に押出し成形することができる形状であり、製造コストも低減することができる。 Moreover, in the present lighting device 10, by using the LED chip 22 as the light source 20, not only the desired brightness can be obtained with low power consumption, but also the overall device can be downsized compared to a fluorescent lamp or the like. Therefore, it is possible to design the shape freely according to the interior 2 of the cabin. Further, the casing 11 constituting the main part of the unit has a shape that can be easily extruded by a metal such as aluminum, and the manufacturing cost can be reduced.

図４に示すように、光源２０は主に側方に光を出射する状態でケーシング１１に組み込まれており、光源２０から出射された光のうち水平面より上向きの光は、ケーシング本体１２の両側部１４の内側にある反射面１４ａによって下方へ反射される（図４中の濃い墨色部分）。この反射した間接光によって客室内２は照らされる。また、光源２０から出射された光のうち水平面より下向きの光の一部は、ケーシング本体１２より下方に一体に垂下した受け部１５によって遮られる。 As shown in FIG. 4, the light source 20 is incorporated in the casing 11 in a state of mainly emitting light laterally, and light upward from the horizontal plane among the light emitted from the light source 20 is on both sides of the casing body 12. The light is reflected downward by the reflection surface 14a inside the portion 14 (the dark ink color portion in FIG. 4). The cabin 2 is illuminated by the reflected indirect light. A part of the light emitted from the light source 20 that is downward from the horizontal plane is blocked by the receiving portion 15 that is integrally suspended below the casing body 12.

これにより、光源２０からの直接光が客室内２（のうち座席５のある領域）に届くことはなく、前述したように客室内２は反射面１４ａにより反射拡散された間接光によって照らされる。従って、客室内２における眩しさを低減して全体的に柔らかく照らすことができ、落ち着いた雰囲気が醸し出され、間接照明としての演出効果を高めることができる。ここで反射面１４ａの形状を工夫することにより、客室内２での目的や用途に応じた様々な配光制御も可能となる。具体的な配光制御としては、客室内２を均一に照射したり、通路や座席５等の特定部位を明るくしたりすること等が考えられる。 Thus, the direct light from the light source 20 does not reach the cabin 2 (the region where the seat 5 is located), and the cabin 2 is illuminated by the indirect light reflected and diffused by the reflecting surface 14a as described above. Accordingly, it is possible to reduce the glare in the cabin 2 and illuminate the entire room softly, create a calm atmosphere, and enhance the effect of indirect lighting. Here, by devising the shape of the reflecting surface 14a, various light distribution controls according to the purpose and application in the cabin 2 can be performed. As specific light distribution control, it is conceivable to uniformly illuminate the cabin 2 or to brighten specific parts such as the passage and the seat 5.

また、照明装置１０のうち側壁面部４を向く側にある光源２０から側方に出射された光は、ケーシング本体１２の片側の側部１４の下端縁と、受け部１５の底壁１５ｂの上端縁との間を通り、そのまま直接光として、客室内２の天井部３と側壁面部４の境界付近まで到達する。そのため、照明装置１０は、従来のように客室内２において座席５のある領域を照射するだけでなく、特に、客室内２の天井部３と側壁面部４の境界付近、すなわち一般に窓上の広告スペースに対しては直接光を照射することができる。 Further, the light emitted from the light source 20 on the side facing the side wall surface portion 4 in the lighting device 10 is laterally emitted from the lower end edge of the side portion 14 on one side of the casing body 12 and the upper end of the bottom wall 15b of the receiving portion 15. It passes between the edges and reaches the vicinity of the boundary between the ceiling portion 3 and the side wall surface portion 4 of the cabin 2 as direct light. Therefore, the lighting device 10 not only irradiates the area where the seat 5 is located in the cabin 2 as in the conventional case, but particularly in the vicinity of the boundary between the ceiling portion 3 and the side wall surface portion 4 in the cabin 2, that is, generally an advertisement on a window The space can be directly irradiated with light.

これにより、図５に示すように、天井部３と側壁面部４の境界に沿って、例えば、天井部３の基準面から側壁面部４に亘り曲がるように展開された広告６の全面、特に天井面に沿った部分も、直接光で明るく照らして目立たせることができる。また、１つの照明装置１０によって広告６の全面を照射する配光とすることが可能となり、広告６に班、影、線等が生じることなく、乗客からは広告６がより見やすくなる。 Accordingly, as shown in FIG. 5, along the boundary between the ceiling portion 3 and the side wall surface portion 4, for example, the entire surface of the advertisement 6 developed so as to bend from the reference surface of the ceiling portion 3 to the side wall surface portion 4, particularly the ceiling. The portion along the surface can also be highlighted by direct light. Moreover, it becomes possible to make it light distribution which irradiates the whole surface of the advertisement 6 with the one lighting device 10, and it becomes easier for the passenger to see the advertisement 6 without causing a group, a shadow, a line, or the like.

さらに、照明装置１０のうち車両中央を向く側にある光源２０から側方に出射された光も、反対側の側部１４の下端縁と、受け部１５の底壁１５ｂの上端縁との間を通り、そのまま直接光として、客室内２の天井部３付近に沿うように車両中央側まで到達する。そのため、照明装置１０は、窓上の広告スペースに対してだけでなく、天井部３の中心線に沿って中吊り広告が設置されている場合には、この中吊り広告も前記窓上の広告６と同様に、直接光で明るく照らして目立たせることができる。 Further, the light emitted from the light source 20 on the side facing the vehicle center in the lighting device 10 is also between the lower end edge of the opposite side portion 14 and the upper end edge of the bottom wall 15b of the receiving portion 15. Passing through the vehicle, it reaches the vehicle center side as it is as direct light along the vicinity of the ceiling portion 3 in the cabin 2. Therefore, when the hanging device is installed along the center line of the ceiling part 3 as well as the advertising space on the window, the lighting device 10 also performs the hanging advertisement on the window. Similar to 6, it can be made to stand out brightly by direct light.

また、ケーシング１１には、光源２０を外側から覆う保護カバー３０を装着している。よって、光源２０から照射された光は保護カバー３０を透過することにより、光源２０の輝度が低減されて過度の強い光の照射を防止することができる。また、光源２０の故障の原因となり得る他の物体の接触を防ぎ、光源２０を保護することができる。ここで保護カバー３０は、水平面に対して垂直となる状態に取り付けられており、下からの物が触れることはあり得るが、保護カバー３０に対して衝撃が垂直方向から強く加わる可能性は低い。また、保護カバー３０の垂直面には埃がたまることもない。 The casing 11 is equipped with a protective cover 30 that covers the light source 20 from the outside. Therefore, the light emitted from the light source 20 is transmitted through the protective cover 30, thereby reducing the luminance of the light source 20 and preventing excessively strong light irradiation. In addition, it is possible to protect the light source 20 by preventing contact with other objects that may cause a failure of the light source 20. Here, the protective cover 30 is attached in a state perpendicular to the horizontal plane, and an object from below can be touched, but it is unlikely that an impact is strongly applied to the protective cover 30 from the vertical direction. . Further, dust does not collect on the vertical surface of the protective cover 30.

保護カバー３０は合成樹脂で形成すれば、仮に乗客の荷物等が当たっても蛍光管のように容易に破損することはないが、保護カバー３０が予期せず外れたり万一破損した場合には、その破片は受け部１５によって受け止められて客室内２に落下することはない。受け部１５は、ケーシング本体１２に一体成形されており、着脱自在な別部材のように外れる虞はない。かかる受け部１５は、保護カバー３０の全域に対して鉛直方向に重なる位置まで少なくとも延出し、保護カバー３０が万一破損した際には、その破片を受け入れる形状に形成されている。このような受け部１５により、十分な安全性を確保することができる。 If the protective cover 30 is made of synthetic resin, it will not be easily damaged like a fluorescent tube even if a passenger's baggage hits it. However, if the protective cover 30 is unexpectedly removed or damaged The debris is received by the receiving portion 15 and does not fall into the cabin 2. The receiving portion 15 is integrally formed with the casing body 12 and there is no possibility that the receiving portion 15 will come off like another detachable member. The receiving portion 15 extends at least to a position where it overlaps the entire area of the protective cover 30 in the vertical direction, and is formed in a shape that accepts the broken pieces in the event that the protective cover 30 is damaged. Such a receiving portion 15 can ensure sufficient safety.

図６は、本発明の第２実施の形態を示している。
本実施の形態に係る照明装置１０Ａは、前述した第１実施の形態に係る照明装置１０と基本的な構成は共通するが、ケーシング１１Ａのケーシング本体１２Ａにある反射面１４ｂの断面形状が異なっている。なお、第１実施の形態と同種の部位には同一符号を付して重複した説明を省略する。 FIG. 6 shows a second embodiment of the present invention.
The lighting device 10A according to the present embodiment has the same basic configuration as the lighting device 10 according to the first embodiment described above, but the cross-sectional shape of the reflecting surface 14b in the casing body 12A of the casing 11A is different. Yes. In addition, the same code | symbol is attached | subjected to the site | part of the same kind as 1st Embodiment, and the overlapping description is abbreviate | omitted.

本実施の形態では、ケーシング本体１２Ａの両側部１４，１４の内側にある反射面１４ｂが、両側方向に並ぶ複数の円弧状断面の曲面が連なるように形成されている。このような構成の反射面１４ｂによれば、限られた両側部１４，１４の内側スペースにおいて、より広い間接光の照射範囲を得ることができる。 In the present embodiment, the reflecting surface 14b on the inner side of the both side portions 14, 14 of the casing body 12A is formed so that a plurality of curved surfaces having an arcuate cross section arranged in the both side directions are connected. According to the reflection surface 14b having such a configuration, a wider irradiation range of indirect light can be obtained in the limited inner space of the side portions 14 and 14.

図７は、本発明の第３実施の形態を示している。
本実施の形態に係る照明装置１０Ｂは、前述した第１，第２実施の形態に係る照明装置１０，１０Ａが左右対称の断面形状であるのに対して、左右非対称の断面形状に構成されている。本実施の形態では、側部１４が片側にのみ延びる形状であり、側部１４のない反対側は、光源２０より直接光をそのまま側方に向けて照射するように構成されている。なお、第１実施の形態と同種の部位には同一符号を付して重複した説明を省略する。 FIG. 7 shows a third embodiment of the present invention.
The illuminating device 10B according to the present embodiment is configured to have an asymmetric cross-sectional shape, whereas the illuminating devices 10 and 10A according to the first and second embodiments described above have a symmetric cross-sectional shape. Yes. In the present embodiment, the side portion 14 has a shape extending only on one side, and the opposite side without the side portion 14 is configured to irradiate light directly from the light source 20 toward the side. In addition, the same code | symbol is attached | subjected to the site | part of the same kind as 1st Embodiment, and the overlapping description is abbreviate | omitted.

本実施の形態では、側部１４のない側にある光源２０から出射された光は、ケーシング本体１２Ｂの端縁と受け部１５Ｂの端縁との間から、そのまま直接光として前述した客室内２の天井部３と側壁面部４の境界付近まで到達する。一方、側部１４のある側にある光源２０から出射された光は、側方よりも上方に向かって側部１４の内側にある反射面１４ｃによって下方へ反射され、間接光として客室内２を照らすことになる。なお、本実施の形態における反射面１４ｃも、両側方向に並ぶ複数の円弧状断面の曲面が連なるように形成されている。 In the present embodiment, the light emitted from the light source 20 on the side without the side portion 14 is directly in the cabin 2 described above as the direct light from between the edge of the casing body 12B and the edge of the receiving portion 15B. To the vicinity of the boundary between the ceiling 3 and the side wall 4. On the other hand, the light emitted from the light source 20 on the side with the side portion 14 is reflected downward by the reflecting surface 14c inside the side portion 14 toward the upper side rather than the side, and passes through the cabin 2 as indirect light. Will illuminate. In addition, the reflective surface 14c in this Embodiment is also formed so that the curved surface of the several circular arc-shaped cross section located in a line on both sides may be continued.

図８は、本発明の第４実施の形態を示している。
本実施の形態に係る照明装置１０Ｃは、前述した第１実施の形態に係る照明装置１０と基本的な構成は共通するが、ケーシング１１Ｃは、前記天井部３の一部として一体に形成されている。なお、第１実施の形態と同種の部位には同一符号を付して重複した説明を省略する。 FIG. 8 shows a fourth embodiment of the present invention.
The lighting device 10C according to the present embodiment has the same basic configuration as the lighting device 10 according to the first embodiment described above, but the casing 11C is integrally formed as a part of the ceiling portion 3. Yes. In addition, the same code | symbol is attached | subjected to the site | part of the same kind as 1st Embodiment, and the overlapping description is abbreviate | omitted.

本実施の形態によれば、天井部３の成形時にケーシング１１Ｃも同時に成形することが可能であり製造コストを低減することができる。また、天井部３の基準面とケーシング１１Ｃとの間に継ぎ目が生じることもなく、外観を美しく仕上げることができる。しかも、天井部３の一部をそのまま利用した反射面１４ｄは広い面積を確保することができ、よりいっそう効率が良い客室内２における間接照明を実現することができる。 According to the present embodiment, the casing 11C can be molded at the same time as the ceiling 3 is molded, and the manufacturing cost can be reduced. In addition, there is no seam between the reference surface of the ceiling part 3 and the casing 11C, and the appearance can be finished beautifully. In addition, the reflecting surface 14d using a part of the ceiling 3 as it is can secure a wide area, and it is possible to realize indirect lighting in the cabin 2 with even higher efficiency.

以上、本発明の実施の形態を図面によって説明してきたが、具体的な構成は前述したような実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。例えば、鉄道車両１の客室内２の天井部３に設置する例を説明したが、航空機や自動車等の他の乗物における客室内の間接照明に適用しても良い。また、ケーシング１１，１１Ａ〜１１Ｃの具体的な形状も図示した例に限定されることはない。 Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to the above-described embodiments, and there are changes and additions within the scope not departing from the gist of the present invention. Are also included in the present invention. For example, although the example which installs in the ceiling part 3 in the passenger compartment 2 of the rail vehicle 1 was demonstrated, you may apply to the indirect illumination in the passenger compartment in other vehicles, such as an aircraft and a motor vehicle. Further, the specific shapes of the casings 11, 11 </ b> A to 11 </ b> C are not limited to the illustrated example.

また、前記第１〜第３の実施の形態においては、天井部３に凹溝３ａを設けて、この凹溝３ａにケーシング１１，１１Ａ，１１Ｂを埋め込むように取り付けたが、天井部３に凹溝３ａを設けることなく、天井部３の基準面上にケーシング１１，１１Ａ，１１Ｂをそのまま出っ張る状態で取り付けても良い。また、前記各種実施の形態では、光源２０としてＬＥＤチップ２２を使用した例を説明したが、他に例えば、小型電球等を使用しても良い。さらに、保護カバー３０は、必ずしも設ける必要はなく省略してもかまわない。 In the first to third embodiments, the concave portion 3a is provided in the ceiling portion 3 and the casing 11, 11A, and 11B are embedded in the concave portion 3a. The casings 11, 11 </ b> A, and 11 </ b> B may be attached in a protruding state on the reference surface of the ceiling portion 3 without providing the groove 3 a. In the various embodiments, the example in which the LED chip 22 is used as the light source 20 has been described. However, for example, a small light bulb or the like may be used. Furthermore, the protective cover 30 is not necessarily provided and may be omitted.

本発明に係る照明装置は、鉄道車両や航空機、自動車等の客室内の間接照明等に幅広く利用することができる。 The lighting device according to the present invention can be widely used for indirect lighting in passenger rooms of railway vehicles, aircraft, automobiles, and the like.

１…鉄道車両
２…客室内
３…天井部
３ａ…凹溝
４…側壁面部
５…座席
６…広告
１０，１０Ａ，１０Ｂ，１０Ｃ…照明装置
１１，１１Ａ，１１Ｂ，１１Ｃ…ケーシング
１２，１２Ａ，１２Ｂ，１２Ｃ…ケーシング本体
１３…中央部
１４…側部
１４ａ，１４ｂ，１４ｃ，１４ｄ…反射面
１５，１５Ａ，１５Ｂ，１５Ｃ…受け部
１５ａ…支持脚
１５ｂ…底壁
１６…レール溝
１７…レール溝
２０…光源
２１…基板
２２…ＬＥＤチップ
３０…保護カバー DESCRIPTION OF SYMBOLS 1 ... Railway vehicle 2 ... Inside of a guest room 3 ... Ceiling part 3a ... Groove 4 ... Side wall surface part 5 ... Seat 6 ... Advertisement 10, 10A, 10B, 10C ... Illumination device 11, 11A, 11B, 11C ... Casing 12, 12A, 12B , 12C ... casing main body 13 ... central part 14 ... side parts 14a, 14b, 14c, 14d ... reflecting surface 15, 15A, 15B, 15C ... receiving part 15a ... support leg 15b ... bottom wall 16 ... rail groove 17 ... rail groove 20 ... Light source 21 ... Substrate 22 ... LED chip 30 ... Protective cover

Claims

In a lighting device having a casing that is arranged on a ceiling in a passenger cabin of a vehicle and incorporates a light source in a state where light emitted from the light source is directed at least laterally,
The casing is integrally formed with a casing main body provided with a reflecting surface for reflecting a part of light emitted from the light source downward and illuminating the interior of the cabin by the reflected indirect light, and below the casing main body. And a receiving part for mounting the light source,
The casing, among the light emitted from the light source, and characterized in that light directly from between the edge of the edge and the receiving portion of the casing body is installed in the Hare state suited to the side Lighting device.

The casing, among the light emitted from the light source, direct light toward the side from between the edge of the edge and the receiving portion of the casing body, along the boundary of the ceiling portion and the sidewall portions the lighting device according to claim 1, characterized in that it is installed in a state of morphism irradiation.

A protective cover attached to the casing so as to cover the light source from the outside;
The said receiving part is formed in the shape which extends at least to the position which overlaps with the orthogonal | vertical direction with respect to the whole region of the said protective cover, and receives the fragment, when the said protective cover is damaged. The lighting device described in 1.

The casing extends long,
Both side portions extending in parallel with the longitudinal direction of the casing body are each formed into an arc-shaped cross section that is curved so as to spread downward from the center portion that is the uppermost end, and the inside of the arc-shaped cross section is the reflection Formed as a surface,
The receiving portion is formed in a bowl-shaped cross section that hangs downward integrally from the central portion,
The lower end edges of both side portions of the casing body and the upper and lower upper end edges of the saddle-shaped cross section in the receiving portion are arranged in a positional relationship in which light emitted from the light source is directly irradiated sideways from between them,
The light source is a plurality of LEDs arranged side by side on a substrate extending in a narrow width,
The substrate including the light source is incorporated in a state of facing the side at an upward angle, respectively, along the left and right inner sides of the bowl-shaped cross section in the receiving portion,
The protective cover is formed in a plate shape extending in a narrow width like the substrate, and covers the substrate from the outside along the center portion and the left and right inner sides of the bowl-shaped cross section of the receiving portion, respectively. The lighting device according to claim 3, wherein the lighting device is attached to the lighting device.

The lighting device according to claim 1, 2, 3, or 4, wherein the casing is installed in a state of being embedded inside a reference surface of the ceiling portion.

The lighting device according to claim 1, wherein the casing is integrally formed as a part of the ceiling portion.