lighting equipment

Abstract

To provide a luminaire which includes an emergency lighting fixture which has excellent economical efficiency and workability.SOLUTION: A luminaire includes: a long first lighting fixture; and a second lighting fixture which is arranged side by side in a shorter direction of the first lighting fixture, and includes an emergency light source part, a lens part for covering the emergency light source part, and an outer shell part for storing the emergency light source part and the lens part, and in which the length of the second lighting fixture in a longer direction of the first lighting fixture is shorter than the length of the first lighting fixture. The outer shell part includes: an outer shell main part in which a translucent part penetration part for exposing the lens part is formed; an outer shell inside part arranged between the first lighting fixture and the lens part in the shorter direction, and separating the first lighting fixture and the lens part; and an outer shell shorter side part arranged so as to oppose the lens part in the longer direction, and separating the first lighting fixture and the lens part.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a lighting device equipped with a normal lighting device and an emergency lighting device. [Background technology]

[0002] Conventionally, as an example of a lighting fixture that can be attached to a ceiling or wall, a lighting device with an integrated emergency light, in which a normal lighting fixture and an emergency lighting fixture are attached in the same housing, has been proposed (for example, Patent Document 1). The lighting device in Patent Document 1 uses a storage battery, which is an emergency power source, as a power source to turn on the emergency lighting fixture in an emergency when the power supply from the commercial power source is stopped for some reason and the normal lighting fixture cannot be turned on. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6238162 Summary of the Invention [Problem to be solved by the invention]

[0004] The lighting device of Patent Document 1 has emergency lighting fixtures located at its longitudinal ends, and if regular lighting fixtures of the same dimensions as general lighting fixtures are used, the overall length of the lighting device must be increased. Furthermore, if the overall length of the lighting device were to be the same as that of the general lighting device, the length of the regular lighting fixtures would have to be shortened by at least the length of the emergency lighting fixtures. Thus, with the previously disclosed technologies, either the lighting device or the regular lighting fixtures must be designed and manufactured to accommodate length dimensions different from those of the general lighting device and the regular lighting fixtures, posing problems in terms of cost and ease of construction.

[0005] The present invention has been made to solve the above-mentioned problems, and aims to provide a lighting device having both normal use lighting fixtures and emergency lighting fixtures, which is economical and easy to install. [Means for solving the problem]

[0006] The lighting device according to the present invention comprises a long first lighting fixture, and a second lighting fixture arranged alongside the first lighting fixture in the short direction, the second lighting fixture having an emergency light source unit, a lens unit covering the emergency light source unit, and an outer casing that houses the emergency light source unit and the lens unit, the length of the second lighting fixture in the longitudinal direction of the first lighting fixture being shorter than the length of the first lighting fixture, the outer casing having a main casing portion formed with a light-transmitting portion through which the lens unit is exposed, an outer shell inner portion extending along the longitudinal direction; and an outer short side portion that is disposed opposite the lens portion in the longitudinal direction and separates the first lighting device from the lens portion. The outer casing inner part is disposed between the first lighting device and the lens part in a direction perpendicular to the extending direction of the outer casing inner part in a cross section of the first lighting device and the second lighting device perpendicular to the longitudinal direction, and separates the first lighting device from the lens part. It is something. [Effects of the Invention]

[0007] In the lighting device of the present invention, when the first lighting fixture is attached to the lighting fixture, the outer casing is arranged in the lighting fixture so as to separate the second light-emitting unit from the first light-emitting unit. Therefore, the first lighting fixture and the second lighting fixture can be arranged side by side in the lighting fixture. Since the first lighting fixture and the second lighting fixture can be arranged side by side in the lighting fixture, in a long lighting device, the first lighting fixture and the second lighting fixture can be arranged side by side in the short direction of the lighting device. As a result, when designing and manufacturing the lighting device, it is not necessary to design and manufacture it according to length dimensions different from those of general lighting devices and general regular lighting fixtures, and it is possible to provide a lighting device equipped with an emergency lighting fixture that is economical and easy to install. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of a lighting device according to a first embodiment of the present invention, viewed from a first direction. [Figure 2]3 is a perspective view of the lighting device according to the first embodiment of the present invention, viewed from a second direction. FIG. [Figure 3] 1 is a front view of an illumination device according to a first embodiment of the present invention. [Figure 4] 1 is a bottom view of the lighting device according to the first embodiment of the present invention. [Figure 5] 1 is a rear view of the lighting device according to the first embodiment of the present invention. [Figure 6] 1 is a top view of an illumination device according to a first embodiment of the present invention. [Figure 7] 1 is a side view of an illumination device according to a first embodiment of the present invention. [Figure 8] 1 is an exploded perspective view of a lighting device according to a first embodiment of the present invention. [Figure 9] 5 is a cross-sectional view of the lighting device of FIG. 4 taken along line AA. [Figure 10] 1. FIG. 4 is a perspective view of the second lighting device of FIG. 1 from a third direction. [Figure 11] 11 is an exploded perspective view of the second lighting device of FIG. 10 in a third direction. FIG. [Figure 12] 11 is a perspective view of the second lighting device of FIG. 10 in a fourth direction. FIG. [Figure 13] 13 is an exploded perspective view of the second lighting device of FIG. 12 in a fourth direction. FIG. [Figure 14] FIG. 14 is an exploded perspective view of the second light source unit of FIG. [Figure 15] FIG. 14 is a perspective view of the battery placed in the base of FIG. 13. [Figure 16] 5 is a cross-sectional view of the lighting device of FIG. 4 taken along the line BB. [Figure 17] 16 is a schematic cross-sectional view showing the attachment and detachment of the battery in FIG. 15. FIG. [Figure 18] 17 is a schematic cross-sectional view showing the attachment and detachment of the battery in FIG. 16. [Figure 19] 2 is a perspective view of the lighting device of FIG. 1 with the outer shell of a second lighting fixture removed. [Figure 20] FIG. 5 is a cross-sectional view taken along the line BB of a modified example of the lighting device according to the first embodiment of the present invention. [Figure 21] FIG. 10 is a perspective view of a lighting device according to a second embodiment of the present invention, viewed from a first direction. [Figure 22]FIG. 10 is a perspective view of the lighting device according to the second embodiment of the present invention, viewed from a second direction. [Figure 23] FIG. 10 is a front view of a lighting device according to a second embodiment of the present invention. [Figure 24] FIG. 10 is a bottom view of the lighting device according to the second embodiment of the present invention. [Figure 25] FIG. 10 is a rear view of the lighting device according to the second embodiment of the present invention. [Figure 26] FIG. 10 is a top view of an illumination device according to a second embodiment of the present invention. [Figure 27] FIG. 10 is a side view of an illumination device according to a second embodiment of the present invention. [Figure 28] FIG. 10 is a perspective view of a lighting device according to a third embodiment of the present invention, viewed from a first direction. [Figure 29] FIG. 10 is a perspective view of the lighting device according to the third embodiment of the present invention, viewed from a second direction. [Figure 30] FIG. 10 is a front view of a lighting device according to a third embodiment of the present invention. [Figure 31] FIG. 10 is a bottom view of the lighting device according to the third embodiment of the present invention. [Figure 32] FIG. 10 is a rear view of the lighting device according to the third embodiment of the present invention. [Figure 33] FIG. 10 is a top view of an illumination device according to a third embodiment of the present invention. [Figure 34] FIG. 10 is a side view of an illumination device according to a third embodiment of the present invention. [Figure 35] FIG. 10 is a perspective view of a lighting device according to a fourth embodiment of the present invention, viewed from a first direction. [Figure 36] FIG. 10 is a perspective view of the lighting device according to the fourth embodiment of the present invention, viewed from a second direction. [Figure 37] FIG. 10 is a front view of an illumination device according to a fourth embodiment of the present invention. [Figure 38] FIG. 10 is a bottom view of an illumination device according to a fourth embodiment of the present invention. [Figure 39] FIG. 10 is a rear view of the lighting device according to the fourth embodiment of the present invention. [Figure 40] FIG. 10 is a top view of an illumination device according to a fourth embodiment of the present invention. [Figure 41]FIG. 10 is a side view of an illumination device according to a fourth embodiment of the present invention. [Figure 42] FIG. 10 is a perspective view of a lighting device according to a fifth embodiment of the present invention, viewed from a first direction. [Figure 43] FIG. 11 is a perspective view of the lighting device according to the fifth embodiment of the present invention, viewed from a second direction. [Figure 44] FIG. 10 is a front view of an illumination device according to a fifth embodiment of the present invention. [Figure 45] FIG. 10 is a bottom view of an illumination device according to a fifth embodiment of the present invention. [Figure 46] FIG. 11 is a rear view of the lighting device according to the fifth embodiment of the present invention. [Figure 47] FIG. 10 is a top view of an illumination device according to a fifth embodiment of the present invention. [Figure 48] FIG. 10 is a side view of an illumination device according to a fifth embodiment of the present invention. [Figure 49] 46 is a cross-sectional view of the lighting device of FIG. 45 taken along the line EE. [Figure 50] FIG. 43 is a perspective view of the second lighting device of FIG. 42 in a third direction. [Figure 51] FIG. 43 is an exploded perspective view of the second lighting device of FIG. 42 viewed in a third direction. [Figure 52] FIG. 50 is a perspective view of the second lighting device of FIG. 49 in a fourth direction. [Figure 53] FIG. 50 is an exploded perspective view of the second lighting device of FIG. 49 in a fourth direction. [Figure 54] FIG. 52 is a detailed exploded perspective view of the second lighting tool of FIG. 51 with the outer shell removed. [Figure 55] FIG. 54 is a detailed exploded perspective view of the second lighting fixture of FIG. 53 with the outer shell removed. [Figure 56] 46 is a cross-sectional view of the lighting device of FIG. 45 taken along the line FF. [Figure 57] 57 is a schematic cross-sectional view showing the attachment and detachment of the battery in FIG. 56. DETAILED DESCRIPTION OF THE INVENTION

[0009] A lighting device 1 according to an embodiment of the present invention will be described below with reference to the drawings. In each drawing, the same or corresponding components are given the same reference numerals, and repeated description may be omitted. The present invention is not limited to the embodiments described below. In addition, the dimensional relationships between components in the drawings may differ from the actual relationships. In addition, in the description of the embodiments, directions or positions such as up, down, left, right, front, rear, front, and back may be indicated. These notations are used for convenience of explanation and do not limit the arrangement, direction, or orientation of devices, fixtures, or parts, etc.

[0010] Embodiment 1 FIG. 1 is a perspective view of the lighting device 1 according to the first embodiment of the present invention, viewed from a first direction. FIG. 2 is a perspective view of the lighting device 1 according to the first embodiment of the present invention, viewed from a second direction. FIG. 3 is a front view of the lighting device 1 according to the first embodiment of the present invention. FIG. 4 is a bottom view of the lighting device 1 according to the first embodiment of the present invention. FIG. 5 is a rear view of the lighting device 1 according to the first embodiment of the present invention. FIG. 6 is a top view of the lighting device 1 according to the first embodiment of the present invention. FIG. 7 is a side view of the lighting device 1 according to the first embodiment of the present invention. FIG. 8 is an exploded perspective view of the lighting device 1 according to the first embodiment of the present invention. The configuration of the lighting device 1 according to the first embodiment will be described with reference to FIGS. 1 to 8.

[0011] In the following description, the direction along the longitudinal direction of the lighting device 1 is referred to as the longitudinal direction (X-axis direction). Furthermore, the direction perpendicular to the longitudinal direction (X-axis direction) and shorter than the longitudinal direction (X-axis direction) is referred to as the short-side direction (Y-axis direction). Furthermore, the direction perpendicular to both the longitudinal direction (X-axis direction) and the short-side direction (Y-axis direction) is referred to as the up-down direction (Z-axis direction). Furthermore, in the up-down direction (Z-axis direction), the direction toward the mounting portion 9, such as a ceiling or wall, on which the lighting device 1 is mounted is referred to as the upward direction Z1. Furthermore, the direction opposite to the upward direction Z1, toward the lighting space onto which light is emitted from the lighting device 1, is referred to as the downward direction Z2. The upward direction Z1 is also the direction in which the first illuminator 20 is mounted to the lighting fixture 10, and the downward direction Z2 is also the direction in which the first illuminator 20 is removed from the lighting fixture 10. Furthermore, the first direction in FIG. 1 is the direction in which the lighting device 1 is viewed from below, on the side where the second illuminator 30 is not provided, in the short-side direction (Y-axis direction) of the lighting device 1. 2 is the direction in which the lighting device 1 is viewed from below the side where the second lighting fixture 30 is provided, in the widthwise direction (Y-axis direction) of the lighting device 1.

[0012] <Lighting device 1> The lighting device 1 is installed at a position where it can illuminate the lighting space, and illuminates the lighting space. The lighting space refers to the space below where the lighting device 1 is installed, such as a residential space, a space such as a warehouse, a space such as a building or public facility, a shared space such as an elevator or a corridor, or a space inside a vehicle such as a train or a ship. In the first embodiment, the lighting device 1 is a so-called V-shaped (150 mm wide) lighting device 1 as an example. Note that, although the lighting device 1 in the first embodiment is described taking as an example a so-called V-shaped lighting device, the lighting device 1 is not limited to the V-shaped type lighting device 1. The lighting device 1 may be of other types, such as a so-called shaded type, a one-sided reflective shaded type, or a trough type.

[0013] The lighting device 1 includes an elongated lighting fixture 10 that is attached to a mounting portion 9 such as a ceiling or a wall, an elongated first lighting fixture 20 that is detachably attached to the lighting fixture 10, and a second lighting fixture 30 that is provided on the lighting fixture 10. In the lighting device 1, the first lighting fixture 20 and the second lighting fixture 30 are arranged side by side in a short-side direction (Y-axis direction). Here, if a certain direction in a plane parallel to the mounting portion 9 is defined as a first direction and a direction perpendicular to the first direction is defined as a second direction, the maximum dimension of the second lighting fixture 30 is smaller than the maximum dimension of the first lighting fixture 20 in the first direction and the second direction, as shown in FIGS. 3 to 7 . The lighting fixture 10 is formed in an elongated shape, and the first direction is the longitudinal direction (X-axis direction) of the lighting fixture 10 and the second direction is the short-side direction (Y-axis direction) of the lighting fixture 10.

[0014] [Lighting fixture 10] As shown in FIG. 8, the lighting fixture 10 has a fixture body 11, a fixture end portion 12, a fixture side connector 13, a fixture side terminal block 14, a fixture side fixing device 15, and a fixture side power line 16.

[0015] (Apparatus body 11) The fixture body 11 is a housing that forms the outer shell of the lighting fixture 10. The fixture body 11 is attached to the mounting portion 9 using fasteners such as bolts. The fixture body 11 has a fixture bottom 110, fixture side portions 111, fixture inclined portions 114, and fixture side edge portions 117. The fixture bottom 110, fixture side portions 111, fixture inclined portions 114, and fixture side edge portions 117 are integrally formed, for example, by bending a metal plate. However, the fixture body 11 is not limited to being formed by bending a metal plate, and may be formed using other materials such as resin or ceramic, or may be formed by other methods such as extrusion molding or additive manufacturing. Furthermore, the fixture bottom 110, fixture side portions 111, fixture inclined portions 114, and fixture side edge portions 117 are not limited to being integrally formed, and may be formed separately as long as these components are securely fixed to each other.

[0016] The fixture bottom 110 is a plate-like member formed in a long, rectangular shape along the longitudinal direction (X-axis direction) of the fixture main body 11. The fixture side portions 111 are a pair of side walls rising from the sides at both ends of the fixture bottom 110 in the short direction (Y-axis direction), and are plate-like members formed in a long, rectangular shape along the longitudinal direction (X-axis direction) of the fixture main body 11. As shown in FIG. 8, a screw hole 113 is formed in the fixture bottom 110. As shown in FIG. 6, a second lighting fixture fixing device 80 such as a screw or a rivet is fitted into the screw hole 113 for fixing the second lighting fixture 30 to the fixture main body 11. As shown in FIG. 8, a wire passing hole 112 is formed in the fixture side portions 111. The wire passing hole 112 is a through-hole formed in the fixture side portions 111. A power wire is inserted into the wire passing hole 112, which serves as a path for supplying power from a power supply unit 23, which is a lighting device for the first lighting fixture 20 described below, to the second lighting fixture 30.

[0017] The fixture body 11 defines a recessed storage section 18 formed by a fixture bottom 110, fixture side sections 111, and an end plate 120 of the fixture end section 12, which will be described later. The storage section 18 is a first space defined in the lighting fixture 10. The storage section 18 has a bottom surface defined by the fixture bottom 110, side walls extending in the longitudinal direction defined by the fixture side sections 111, and side walls extending in the lateral direction defined by the end plate 120. A first lighting fixture 20 is detachably attached to the storage section 18, and a portion of the first lighting fixture 20 is accommodated in the storage section 18. In other words, the first space is a storage space for the first lighting fixture 20.

[0018] The fixture inclined portions 114 are inclined walls provided in a pair on both sides of the accommodation portion 18 in the lateral direction (Y-axis direction) of the fixture main body 11. The fixture inclined portions 114 are formed so as to be inclined with respect to the mounting surface of the mount portion 9. The pair of fixture inclined portions 114 are formed from each of the longitudinal sides of the fixture side edge portion 117 upward (toward the Z1 side) and away from the accommodation portion 18. In other words, the fixture inclined portions 114 are inclined so that the distance between the ends of the fixture inclined portions 114 on the mount portion 9 side in the vertical direction (Z-axis direction) of the fixture main body 11 is wider than the distance between the ends of the fixture inclined portions 114 on the illumination space side. In the lighting device 1, the accommodation portion 18 is formed between the pair of fixture inclined portions 114 in the lateral direction (Y-axis direction). The fixture inclined portions 114 form an inclined surface and may reflect light emitted from the light source toward the illumination space.

[0019] The appliance side edges 117 are edges of the storage section 18 that are provided in pairs on both sides of the storage section 18 in the short direction (Y-axis direction) of the appliance main body 11. The appliance side edges 117 are formed between the appliance side sections 111 and the appliance inclined sections 114. The appliance side edges 117 are formed at the tip ends of the appliance side sections 111 opposite the appliance bottom section 110, and are formed in pairs so as to be spaced apart from each other from the respective tip ends of the pair of appliance side sections 111. The appliance side edges 117 form the underside of the appliance main body 11.

[0020] A fixture through-hole 115 is formed in the fixture inclined portion 114 and the fixture side edge portion 117, which are formed on one side of the fixture main body 11 in the short-side direction (Y-axis direction) with the accommodation portion 18 in between. The fixture through-hole 115 is formed in the center of the fixture main body 11 in the longitudinal direction (X-axis direction). As shown in FIG. 4 , the fixture through-hole 115 is formed in a rectangular shape on the fixture main body 11 in a plan view of the mounting portion 9 seen from the lighting space side. A second lighting fixture 30, which will be described later, is inserted into this fixture through-hole 115, and the second lighting fixture 30 is disposed in the fixture through-hole 115 so as to protrude from the fixture inclined portion 114 and the fixture side edge portion 117 toward the lighting space side. Therefore, the fixture through-hole 115 only needs to be formed in accordance with the shape and dimensions of the outer casing 42 of the second lighting fixture 30, which will be described later, and is not limited to a rectangular shape in a plan view of the mounting portion 9 seen from the lighting space side. The instrument penetration portion 115 functions as an attachment / detachment opening or attachment / detachment opening for the outer shell portion 42 .

[0021] (Instrument end 12) The fixture end portions 12 are arranged at both ends of the fixture main body 11 in the longitudinal direction (X-axis direction). The fixture end portions 12 have end plates 120 that cover the ends of the fixture main body 11 in the longitudinal direction (X-axis direction). The end plates 120 form side walls of the fixture main body 11 that extend in the short direction (Y-axis direction) of the fixture main body 11. The end plates 120 of the fixture end portions 12 are arranged at the ends of the fixture inclined portions 114 and the fixture side edge portions 117 in the longitudinal direction (X-axis direction), and form the outer shell of the lighting fixture 10 together with the fixture inclined portions 114 and the fixture side edge portions 117 of the fixture main body 11.

[0022] The end plate 120 is formed with a knockout portion 121, which forms a through-hole in the end plate 120 by removing a portion of the wall that constitutes the end plate 120. The knockout portion 121 is a portion of the end plate 120 that has been knocked out, and can be easily drilled on-site by, for example, hammering or cutting. The knockout portion 121 is, for example, a plurality of continuous through-holes formed along the periphery of the wall to be cut out of the end plate 120, like perforations. The knockout form is not limited to a plurality of continuous through-holes, and other forms of knockout may be used on the end plate 120. Furthermore, although the knockout portion 121 is formed to be removable from the end plate 120 by knockout processing, the knockout portion 121 may also be formed to be removable from the end plate 120 by means of engagement with a claw, adhesive, or other methods. For example, an electric wire for a feed wiring may be inserted through the through-hole formed by the knockout portion 121.

[0023] (Apparatus side connector 13 and appliance side fixing device 15) The fixture-side connector 13 constitutes a connecting mechanism for detachably connecting the first lighting fixture 20 to the lighting fixture 10. The fixture-side connector 13 holds the first lighting fixture 20 when the first lighting fixture 20 is attached to the lighting fixture 10. The fixture-side connector 13 is a plate spring and is made of an elastic material such as stainless steel or spring steel. The fixture-side connector 13 may be formed by bending an elastic plate material or an elastic wire material. The fixture-side connector 13 engages with a lighting-fixture-side connector (not shown) of the first lighting fixture 20. As shown in FIG. 8 , two fixture-side connectors 13 are attached to the fixture bottom 110 and are arranged along the longitudinal direction (X-axis direction) of the fixture bottom 110 that constitutes the storage section 18. The fixture-side connectors 13 are arranged on the end side relative to the center in the longitudinal direction (X-axis direction) of the fixture bottom 110. The paired appliance-side connectors 13 are arranged on the appliance bottom 110 so that the tips of the springs face in opposite directions. The appliance-side fixing device 15 is a member for fixing the appliance-side connector 13 to the appliance main body 11, and is, for example, a screw.

[0024] (Device side terminal block 14) The fixture-side terminal block 14 is connected to an external power source (not shown) drawn into the fixture body 11 from the outside, and supplies power supplied from a commercial power source to the first lighting fixture 20. The fixture-side terminal block 14 is attached to and fixed to the fixture bottom 110 of the fixture body 11. An external electric wire (not shown) for receiving power from the external power source is connected to the fixture-side terminal block 14. In addition, a fixture-side power line 16 for supplying power to a power supply unit 23 of the first lighting fixture 20, which will be described later, is connected to the fixture-side terminal block 14.

[0025] (Apparatus side power line 16) The fixture-side power line 16 has an electric wire portion 160 that connects the fixture main body 11 and the first lighting fixture 20. One end of the electric wire portion 160 of the fixture-side power line 16 is connected to the fixture-side terminal block 14, and the other end is provided with a connector 161 for connection to a power supply-side power line (not shown) of the first lighting fixture 20.

[0026] [First lighting fixture 20] FIG. 9 is a cross-sectional view of the lighting device 1 of FIG. 4 taken along line AA. The configuration of each part of the first lighting device 20 will be described with reference to FIGS. 1, 4, 8, and 9. The first lighting device 20 is a lighting device for regular use, and power is supplied to the first light source unit 21, which serves as a light source, from outside the lighting device 1 via the fixture-side terminal block 14 during normal operation. Note that "normal operation" refers to a state in which power from a commercial power source or the like is supplied to the lighting device 1 from outside the lighting device 1. Furthermore, "emergency operation" refers to a state in which power is not supplied to the lighting device 1 from outside the lighting device 1 for some reason, such as a power outage. During normal operation, when the lighting device 1 is turned on, the lighting device 1 emits light from the first lighting device 20 to illuminate the lighting space.

[0027] As shown in FIG. 4, the first illuminator 20 is attached to the lighting fixture 10 to form the lighting device 1. The first illuminator 20 is formed in an elongated shape and is used by being attached to the fixture body 11 of the lighting fixture 10. A portion of the first illuminator 20 is housed in the housing 18 of the fixture body 11, and the first illuminator 20 is detachably attached to the fixture body 11. As shown in FIG. 9, the first illuminator 20 has a first light source unit 21, a first light-transmitting unit 22, a power supply unit 23, and a support unit 24. The first illuminator 20 also has a lighting-fixture-side connecting unit (not shown) that engages with the fixture-side connecting unit 13. The lighting-fixture-side connecting unit, together with the fixture-side connecting unit 13, constitutes a connecting mechanism for detachably connecting the first illuminator 20 to the fixture body 11.

[0028] (1st light source section 21) The first light source unit 21 is a light source that emits light. The first light source unit 21 is turned on by a first lighting power supplied from a first lighting device. The first lighting device is a power supply unit 23, which will be described later. The first light source unit 21 is disposed in a space surrounded by the first light transmitting unit 22 and the support unit 24, with the first light transmitting unit 22 attached to the support unit 24. The first light source unit 21 is formed long, and as shown in FIG. 9 , includes a first light source element 211 and a first light source substrate 210 on which the first light source element 211 is mounted. In addition, an electric wire (not shown) is connected to one end of the first light source unit 21 in the longitudinal direction (X-axis direction) for electrically connecting the first light source unit 21 to the power supply unit 23, which will be described later.

[0029] The first light source elements 211 emit light when supplied with power. In this embodiment, light emitting diodes (hereinafter referred to as LEDs) are used as the first light source elements 211. The multiple first light source elements 211 are arranged in a row along the longitudinal direction (X-axis direction) on the mounting surface of the first light source substrate 210. The arrangement of the first light source elements 211 on the first light source substrate 210 is not limited to a row, and may be arranged in multiple rows, or in a staggered pattern, for example. Instead of LEDs, the first light source elements 211 may be, for example, solid-state lasers, semiconductor lasers, organic electroluminescence (EL), inorganic EL, or the like. The first light source substrate 210 is formed to be elongated and is a plate-like member extending in the longitudinal direction (X-axis direction) of the first illuminator 20. The first light source substrate 210 may be made of, for example, a glass-epoxy substrate (FR-4), a glass-composite substrate (CEM-3), a paper-epoxy substrate (FR-3), a paper-phenolic substrate (XPC), or a metal-based substrate.

[0030] (First transparent part 22) The first light-transmitting portion 22 receives light emitted by the first light source unit 21 and transmits the light for irradiation. The first light-transmitting portion 22 is made of a light-transmitting material that transmits at least visible light. The material of the first light-transmitting portion 22 may be, for example, a milky white resin material or a resin material mixed with a diffusing material. The first light-transmitting portion 22 may be made of, for example, a resin material such as polycarbonate or acrylic. The first light-transmitting portion 22 is formed long so as to cover the first light source unit 21, and is attached to a side end of the support unit 24 (described later). The first light-transmitting portion 22 has a main portion 220, an attachment portion 221, and a lid portion 226.

[0031] The main portion 220 is a first light-emitting portion, covers the first light source portion 21, and transmits light emitted from the first light source portion 21. The main portion 220 is a part of the first light-transmitting portion 22, and covers the first light source portion 21 and faces the first light source portion 21 when the first light-transmitting portion 22 is attached to the support portion 24. Therefore, the main portion 220 is a portion of the first light-transmitting portion 22 where light emitted by the first light source portion 21 enters and transmits the light for irradiation. The light emitted from the first light source portion 21 enters through a first incident portion 222 that constitutes an inner surface of the first light-transmitting portion 22 and is emitted to the outside from a first emission portion 223 that constitutes an outer surface of the first light-transmitting portion 22. In a cross section perpendicular to the longitudinal direction (X-axis direction), the main portion 220 has a lower end formed in an arc shape as shown in FIG. 9. The cross section of the main portion 220 perpendicular to the longitudinal direction (X-axis direction) is not limited to the shape in which the lower end is formed in an arc shape as shown in Fig. 9, and the cross section of the main portion 220 may have other shapes. For example, the cross section of the main portion 220 perpendicular to the longitudinal direction (X-axis direction) may have a straight portion or a curved portion, or may have both a straight portion and a curved portion. The surface of the main portion 220 may be a planar shape formed from one plane or a polyhedral shape formed from multiple planes, or may be a shape formed from one or multiple curved surfaces.

[0032] The attachment portion 221 is a portion of the first translucent portion 22 that engages with the support portion 24. The attachment portion 221 is provided on the end side of the first translucent portion 22 relative to the center in the short-side direction (Y-axis direction) of the first translucent portion 22. The attachment portions 221 are provided in pairs in the short-side direction (Y-axis direction) of the first translucent portion 22. The attachment portions 221 are formed to protrude upward from the main portion 220, and are formed to extend in the up-down direction (Z-axis direction) when the first illuminator 20 is attached to the lighting fixture 10. One end of the attachment portion 221 is continuous with the main portion 220 in the up-down direction (Z-axis direction), and the other end of the attachment portion 221 is bent in a hook shape toward the center in the short-side direction (Y-axis direction). A hook-shaped portion formed on an end of this mounting portion 221 catches on the standing portion 241, thereby engaging the first light transmitting portion 22 with the support portion 24 and attaching it to the support portion 24. Note that the mounting portion 221 may have any other shape as long as it has a structure that allows it to engage with the standing portion 241. Furthermore, the mounting portions 221 may be formed continuously along the longitudinal direction (X-axis direction) of the first light transmitting portion 22, or may be formed at intervals along the longitudinal direction (X-axis direction) of the first light transmitting portion 22.

[0033] The lid portion 226 is disposed at an end of the first light-transmitting portion 22 in the longitudinal direction (X-axis direction), closes an opening formed at the end of the first light-transmitting portion 22 in the longitudinal direction (X-axis direction), and distributes light emitted by the first light source portion 21 in the longitudinal direction (X-axis direction). The lid portion 226 is formed of a material having transparency and diffusibility, such as acrylic resin, and is joined to the main portion 220 by a joining method such as adhesive bonding or thermal welding. In the first embodiment, the lid portion 226 is configured separately from the main portion 220 and the attachment portion 221, but the lid portion 226 may be formed integrally with the main portion 220 and the attachment portion 221. The lid portion 226 is not limited to a portion that distributes light emitted by the first light source portion 21 in the longitudinal direction (X-axis direction), and may also be a portion that blocks light emitted by the first light source portion 21.

[0034] (Power supply section 23) The power supply unit 23 supplies power, which is supplied from the outside via the fixture-side terminal block 14, to the first light source unit 21, thereby lighting the first light source element 211. The power supply unit 23 is a first lighting device of the lighting device 1. As shown in FIG. 9 , the power supply unit 23 is fixed to the surface of the support unit 24 opposite to the surface to which the first light source unit 21 is attached by a power-supply-side fixture (not shown). The power-supply-side fixture is, for example, a screw, a screw and nut, or a rivet. The power supply unit 23 has a case 230 having a substantially rectangular parallelepiped shape, a power supply board housed inside the case 230, and power supply circuit components (not shown) mounted on the power supply board. The power supply unit 23 also has a power-supply-side power line (not shown) connected to the first light source unit 21.

[0035] (Support part 24) The support section 24 is a member on which a lighting-device-side connector (not shown) for attaching the first lighting device 20 to the lighting fixture 10 is provided, and is also a member to which the first light source section 21, the first light-transmitting section 22, and the power supply section 23 are attached. As shown in FIG. 9 , the support section 24 has a base section 240 formed in the shape of a long, rectangular plate along the longitudinal direction (X-axis direction) and erected sections 241 rising from both ends of the base section 240 in the lateral direction (Y-axis direction). The support section 24 also has a power supply section mounting section 242 formed in the shape of a plate that protrudes from the base section 240 on the side from which the erected sections 241 rise. The support section 24 is formed of a reflective material, but a reflective paint may be used, or a reflective material may be disposed on a substrate.

[0036] As described above, the base 240 is formed in the shape of a long plate, with the power supply unit 23 and the lighting-device-side connector (not shown) disposed on one plate surface side, and the first light source unit 21 attached to the wall portion on the other plate surface side. The standing portion 241 is formed to extend upward (in the Z1 direction) from the base 240 when the first lighting device 20 is attached to the lighting fixture 10. The standing portion 241 is formed along the longitudinal direction (X-axis direction) of the base 240. One end of the standing portion 241 is continuous with the base 240 in the up-down direction (Z-axis direction), and the other end of the standing portion 241 has rounded edges and is bent in an arc shape toward the center in the short-side direction (Y-axis direction). The mounting portion 221 of the first light transmitting portion 22 is caught on the end of this standing portion 241, whereby the first light transmitting portion 22 engages with and is attached to the support portion 24. The power supply unit arrangement portion 242 is a plate-shaped portion located above (on the Z1 side of) the base 240 when the first illuminator 20 is attached to the lighting fixture 10. In other words, the base 240 and an imaginary extension plane of the power supply unit arrangement portion 242 are parallel to each other. The power supply unit arrangement portion 242 is formed in the center of the base 240 in the short-side direction (Y-axis direction) of the base 240. The power supply unit 23 is arranged in the power supply unit arrangement portion 242.

[0037] [Second lighting fixture 30] An overview of the second lighting device 30 will be described with reference to Figures 1 to 9. The second lighting device 30 is an emergency lighting device that emits light to illuminate the lighting space in an emergency when power is not supplied to the lighting device 1 from outside the lighting device 1 for some reason, such as a power outage.

[0038] The second illuminator 30 is attached to the lighting fixture 10 and constitutes the lighting device 1 together with the first illuminator 20. The second illuminator 30 is disposed outside the accommodation section 18 in the short-side direction (Y-axis direction) of the lighting fixture 10. The second illuminator 30 is formed in an elongated shape and attached along the longitudinal direction (X-axis direction) of the lighting fixture 10. The second illuminator 30 is provided at the center of the lighting fixture 10 in the long-side direction (X-axis direction). The second illuminator 30 is disposed alongside the first illuminator 20 in the short-side direction (Y-axis direction) of the lighting fixture 10. The second illuminator 30 is disposed within the lighting fixture 10 such that the long-side direction of the first illuminator 20 and the long-side direction of the second illuminator 30 are parallel to each other in a plan view of the mounting portion 9 seen from the lighting space side. The second illuminator 30 is provided so as to protrude from a fixture penetration portion 115 formed in the fixture inclined portion 114.

[0039] FIG. 10 is a perspective view of the second illuminator 30 of FIG. 1 in a third direction. FIG. 11 is an exploded perspective view of the second illuminator 30 of FIG. 10 in a third direction. FIG. 12 is a perspective view of the second illuminator 30 of FIG. 10 in a fourth direction. FIG. 13 is an exploded perspective view of the second illuminator 30 of FIG. 12 in a fourth direction. FIG. 14 is an exploded perspective view of the second light source unit 31 of FIG. 13. The configuration of the second illuminator 30 will be described in more detail with reference to FIGS. 9 to 14. Note that the third direction in FIGS. 10 and 11 is a perspective view of the second illuminator 30 when the illuminator 1 is viewed from the outside to the inside of the illuminator 1 in the short-side direction (Y-axis direction) of the illuminator 1 and from the illumination space side toward the attachment portion 9 side. Furthermore, the fourth direction in FIGS. 12 and 13 is a perspective view of the second illuminator 30 when the illuminator 1 is viewed from the inside to the outside of the illuminator 1 and from the illumination space side toward the attachment portion 9 side in the short-side direction (Y-axis direction) of the illuminator 1. 10 to 14, the up-down direction (Z-axis direction) on the paper for explaining the second lighting device 30 is shown opposite to the up-down direction (Z-axis direction) on the paper for the lighting device 1 in Fig. 1. Also, Figs. 11 and 13 show the second lighting device 30 in a state where the battery 70 has been removed. As shown in Figs. 13 to 15, the second lighting device 30 has a second light source unit 31, a control unit 34, an operation unit 36, an insulating unit 38, a housing unit 40, a holding member 50, the battery 70, a second lighting device fixing device 80, and a hanging cord 60.

[0040] (Second light source section 31) The second light source unit 31 is an emergency light source that emits light. The second light source unit 31 is turned on by second lighting power supplied from a second lighting device. The second lighting device is the control unit 34, which will be described later. As shown in FIGS. 10 and 12 , the second light source unit 31 is housed in the housing unit 40 with some components, such as the second translucent unit 312, exposed from the housing unit 40. When the outer casing 42 is attached to the base unit 44, the second light source unit 31 is disposed between the base unit 44 and the outer casing 42. As shown in FIG. 14 , the second light source unit 31 has a second light source substrate 310, a second light-emitting element 311, a second translucent unit 312, a holding unit 317, and a second light source unit fixing device 327.

[0041] The second light source substrate 310 is a plate-shaped member, and mounts the second light emitting element 311. The second light source substrate 310 may be made of, for example, a glass-epoxy substrate (FR-4), a glass-composite substrate (CEM-3), a paper-epoxy substrate (FR-3), a paper-phenolic substrate (XPC), a metal-based substrate, or the like.

[0042] The second light-emitting elements 311 emit light upon receiving power supply. In the present embodiment, light-emitting diodes (hereinafter referred to as LEDs) are used as the second light-emitting elements 311. The second light-emitting elements 311 are arranged in pairs along the longitudinal direction (X-axis direction) on the mounting surface of the second light source substrate 310. The number of second light-emitting elements 311 is not limited to two, and may be one, three, or more. The arrangement of the second light-emitting elements 311 on the second light source substrate 310 is not limited to the longitudinal direction (X-axis direction). For example, the second light-emitting elements 311 may be arranged in the lateral direction (Y-axis direction) or obliquely relative to the longitudinal or lateral direction. Instead of LEDs, the second light-emitting elements 311 may be, for example, solid-state lasers, semiconductor lasers, organic electroluminescence (EL), inorganic EL, or the like.

[0043] The second light-transmitting portion 312 receives the light emitted by the second light-emitting element 311 and transmits the light for irradiation, and is made of a light-transmitting material that transmits at least visible light. The second light-transmitting portion 312 can be made of, for example, a resin material or a glass material. The second light-transmitting portion 312 is formed in an oval shape. The second light-transmitting portion 312 has two lens portions 313 and an attachment portion 316 that forms the edge of the second light-transmitting portion 312.

[0044] The lens portion 313 is a second light-emitting portion that covers the second light source portion 31 and transmits light emitted from the second light source portion 31. The lens portion 313 also controls the light distribution of the light emitted from the second light-emitting element 311. When the second light-transmitting portion 312 is attached to the holder 317, the lens portion 313 covers the second light-emitting element 311, as shown in FIG. 9 . The dotted line Lt1 in FIG. 9 compares the position of the tip of the lens portion 313 on the irradiation side with the position of the tip of the main portion 220 of the first light-transmitting portion 22 that constitutes the first lighting device 20 on the irradiation side. The dotted line Lt2 compares the attachment position of the lens portion 313 with the attachment position of the main portion 220 of the first light-transmitting portion 22 that constitutes the first lighting device 20. As can be seen from the dotted line Lt2, in the lighting device 1, the installation position of the lens unit 313 is located closer to the illumination space than the installation position of the main unit 220 of the first lighting fixture 20. In other words, the lens unit 313 is located higher than the main unit 220, with respect to the installation surface of the mounting base 9 as a reference. Furthermore, as can be seen from the dotted line Lt1, in the lighting device 1, the distance between the tip of the light-emitting side of the lens unit 313 and the installation surface of the mounting base 9 is approximately equal to the distance between the tip of the light-emitting side of the main unit 220 of the first lighting fixture 20 and the installation surface of the mounting base 9. Note that, in the lighting device 1, it is sufficient that a partition is provided between the main unit 220 of the first lighting fixture 20 and the lens unit 313 of the second lighting fixture 30, and the positional relationship between the lens unit 313 and the main unit 220 is not limited to the above-mentioned positional relationship. The second incident portion 314, which constitutes the inner surface of the lens unit 313, faces the second light-emitting element 311, as shown in FIG. Light emitted from second light-emitting element 311 enters second incident portion 314 of lens portion 313 and is emitted to the outside from second emission portion 315 that constitutes the outer surface of lens portion 313. Therefore, second emission portion 315 of lens portion 313 serves as the light-emitting portion of second light source unit 31. As shown in FIG. 14 , attachment portion 316 is a flange portion formed around lens portion 313. When second light-transmitting portion 312 is attached to holding portion 317, attachment portion 316 is guided by attachment guide 321 of holding portion 317 and engages with holding protrusion 320 of holding portion 317.

[0045] The holding portion 317 is for fixing the second light source substrate 310 and the lens portion 313 to the pedestal portion 44, which will be described later. The holding portion 317 has a main holding portion 318, a secondary holding portion 324, and a connection portion 326.

[0046] The main holder 318 is formed in a plate shape and serves as a base on which the second light transmitting portion 312, which functions as a lens, is attached. The main holder 318 has a holding protrusion 320 that locks the attached second light transmitting portion 312. The holding protrusion 320 is provided on a side wall 318a that rises from the main holder 318, and is a protrusion that protrudes inward from the side wall 318a. The holding protrusion 320 locks the second light transmitting portion 312 by sandwiching the second light transmitting portion 312 together with the main holder 318 from above and below (the Z-axis direction). The second light transmitting portion 312 is placed in a lens holder 319 of the main holder 318 by the holding protrusion 320. The holder 317 forms an attachment guide 321 between the lens holder 319 and the holding protrusion 320. The attachment guide 321 is a groove formed between the lens holder 319 and the holding protrusion 320. The mounting guide 321 fits into the mounting portion 316 of the second light transmitting portion 312 when the second light transmitting portion 312 is attached to the holding portion 317, and guides the sliding of the attached second light transmitting portion 312. A through hole 322 is formed in the main holding portion 318. The through hole 322 is formed to be located above the mounting range of the second light emitting element 311. In the second light transmitting portion 312 attached to the main holding portion 318, the lens portion 313 and the second light emitting element 311 face each other via the through hole 322. Therefore, light emitted from the second light emitting element 311 reaches the lens portion 313 via the through hole 322. The main holding portion 318 is further formed with main portion screw holes 323. The main portion screw holes 323 are formed in two locations on the main holding portion 318, with the lens holding portion 319 in between. The main portion screw hole 323 is a hole through which a second light source portion fixing tool 327 for fixing the second light source portion 31 to the base portion 44 is inserted. Of the main portion screw holes 323 formed in two locations, one main portion screw hole 323 overlaps with a sub-portion screw hole 325 formed in the holding sub-portion 324 and communicates with the sub-portion screw hole 325.

[0047] The secondary holding portion 324 is a plate-shaped member that locks the second light transmitting portion 312 arranged in the lens holding portion 319 so that it does not slip out of the mounting guide 321. The secondary holding portion 324 also fixes the second light transmitting portion 312 so that it does not rattle within the mounting guide 321. A secondary screw hole 325 is formed in the secondary holding portion 324. The secondary screw hole 325 is a hole through which a second light source unit fixing tool 327 for fixing the second light source unit 31 to the base unit 44 is inserted. The secondary screw hole 325 overlaps with the main screw hole 323 formed in the main holding portion 318 and is in communication with the main screw hole 323.

[0048] The connecting portion 326 is a portion that connects the main retaining portion 318 and the secondary retaining portion 324. In the first embodiment, the connecting portion 326 is configured as a single component by connecting the main retaining portion 318 and the secondary retaining portion 324.

[0049] The second light source unit fixing device 327 is a member that fixes the second light source unit 31 to the base unit 44. The second light source unit fixing device 327 is, for example, a screw, a rivet, or the like. The second light source unit fixing device 327 is inserted into a main part screw hole 323 formed in the main holding part 318 and a sub part screw hole 325 formed in the sub holding part 324.

[0050] (Control unit 34) Next, the control unit 34 will be described with reference to Fig. 13. The control unit 34 turns on the second light source unit 31 and controls the lighting of the second light source unit 31. The control unit 34 is a second lighting device of the lighting device 1. The control unit 34 also performs an inspection operation of the second light source unit 31 and controls the inspection operation of the second light source unit 31. The control unit 34 also has a battery 70 (described later), stores electricity in the battery 70, and controls the storage of electricity in the battery 70. For example, the control unit 34 controls switching between storing electricity in the battery 70 and discharging the battery 70.

[0051] The control unit 34 has a control board 340 and control circuit components 341, and constitutes a power storage circuit, a discharge circuit, a control circuit, etc. The control board 340 is a plate-shaped member, and mounts the control circuit components 341. The control circuit components 341 have, for example, a storage device that stores a program, a CPU (Central Processing Unit) that executes the program, etc.

[0052] The control unit 34 also has a case 342 and a control unit fixture 346. The case 342 is box-shaped and houses the control board 340 therein. The case 342 has a first case 343 and a second case 345. The first case 343 is a so-called bottom case, and is a container to which the control board 340 is attached. The first case 343 has a plate-shaped case bottom wall 343a and a pair of case side walls 343b that rise from the case bottom wall 343a and face each other. A screw hole 344 is formed in the case bottom wall 343a of the first case 343. This screw hole 344 is a hole through which a control unit fixture 346 for fixing the control unit 34 to the pedestal 44 and the base 41 is inserted. The second case 345 is a so-called upper case, and is a lid that covers the top of the first case 343. That is, the second case 345 covers the upper side of the control board 340 attached to the first case 343 in the control unit 34. The control unit fixing device 346 fixes the control unit 34 to the pedestal 44 and the base 41. The control unit fixing device 346 is, for example, a screw, a nut, a rivet, or the like.

[0053] (Operation unit 36) Next, the operation unit 36 ​​will be described with reference to FIG. 13. The operation unit 36 ​​is used for inspecting the lighting device 1. The operation unit 36 ​​has an operation surface 360 ​​and an operation unit fixture 363. The operation surface 360 ​​has an operation button 361 operated by an operator and an indicator light 362. The indicator light 362 displays the power supply state, for example, as a so-called indicator. The operation unit fixture 363 fixes the operation unit 36 ​​to the base 44. The operation unit fixture 363 is, for example, a screw, a nut, a rivet, or the like.

[0054] (insulation part 38) Next, the insulating portion 38 will be described with reference to FIG. 14. The insulating portion 38 is a plate-shaped member, and is an insulating sheet. The insulating portion 38 is disposed within the second lighting device 30 between the second light source substrate 310 of the second light source unit 31 and a second light source unit mounting portion 440 of the base unit 44, which will be described later. The insulating portion 38 electrically insulates the second light source substrate 310 of the second light source unit 31 from the second light source unit mounting portion 440 of the base unit 44. The insulating portion 38 has insulating portion screw holes 380 formed therein. The insulating portion screw holes 380 are formed in two locations. The insulating portion screw holes 380 are holes through which second light source unit fixing devices 327 for fixing the second light source unit 31 to the base unit 44 are inserted. When the main holder 318 of the second light source 31 is fixed to the second light source attachment portion 440 of the base 44 , the insulating portion 38 is also fixed to the second light source attachment portion 440 of the base 44 .

[0055] (Housing part 40) Next, the housing 40 of the second lighting device 30 will be described with reference to Figs. 9 to 14. The housing 40 forms the outer shell of the second lighting device 30. As shown in Figs. 10 and 11, the housing 40 is formed in a box shape by an outer shell 42 and a base 41, and as shown in Fig. 9, a second space 45 is formed inside the housing 40. The second space 45 formed by the housing 40 accommodates the second light source unit 31, the control unit 34, the operation unit 36, and the insulating unit 38. The housing 40 also covers the second light source unit 31 and forms the second space 45 accommodating the second light source unit 31 and the control unit 34 together with a lens unit 313 that covers the second light source unit 31 and transmits light emitted from the second light source unit 31. 10 and 12, the second lighting device 30 is covered by a housing 40 that houses the entire optical system, including the second light source 31, and the lens 313 and the outer casing fixture 432 are exposed, but neither protrudes beyond the outer surface 420a of the housing 40. Therefore, the housing 40 serves as a partition between the first lighting device 20, which is a normal light source, and the second lighting device 30, which is an emergency light source. As shown in FIG. 13, the housing 40 has a base 41 fixed to the lighting device 10, a pedestal 44 fixed to the base 41, and an outer casing 42 that is detachably attached to the pedestal 44.

[0056] The base 41 is a base portion that serves as a foundation for accommodating the second light source unit 31. The base 41 has a base bottom portion 410, base side portions 414, and a base protrusion portion 415. The base bottom portion 410 is a member formed in the shape of a rectangular plate. A pedestal portion 44 and a holding member 50 (described later) are attached to the base bottom portion 410. The base bottom portion 410 is formed with a holding member fixing portion 411 as shown in FIGS. 11 and 13, and with a screw hole 412 and a mounting hole 413 as shown in FIG. 6.

[0057] The holding member fixing portion 411 is a bridge-shaped cut-and-raised portion. That is, the holding member fixing portion 411 is a plate material cut and raised from the base bottom portion 410, and both ends are formed continuous with the base bottom portion 410. The fixing portion 51 of the holding member 50 is inserted into the holding member fixing portion 411. The screw holes 412 are holes through which mounting fixtures such as screws are inserted to attach the control unit 34 and the pedestal portion 44 to the base bottom portion 410. The mounting holes 413 are holes through which a holding member fixing fixture 54 is inserted to fix the holding member 50 to the base bottom portion 410.

[0058] The base side portions 414 guide the movement of the outer shell portion 42 when the outer shell portion 42 is attached to the base 41. The base side portions 414 are side walls that rise from the edges of the base bottom portion 410. The base side portions 414 are provided along the longitudinal direction (X-axis direction) of the elongated base bottom portion 410, and are provided so as to be disposed at both ends of the base bottom portion 410 in the longitudinal direction (X-axis direction). In other words, the base side portions 414 are formed so as to be disposed on three adjacent sides of the rectangular base bottom portion 410.

[0059] The base extension 415 is an attachment portion for attaching the second lighting fixture 30 to the fixture bottom 110 of the lighting fixture 10. The base extension 415 is a plate member that is continuous with and integrally formed with the base bottom 410, and extends from the base bottom 410. The base extension 415 is provided on one side of the base bottom 410 where the base side 414 is not provided. As shown in FIG. 13 , the base extension 415 extends to the opposite side of the base side 414 that is provided along the longitudinal direction (X-axis direction) of the base bottom 410, via the pedestal 44. When the second lighting fixture 30 is placed in the lighting fixture 10, the base extension 415 faces and abuts against the fixture bottom 110. A screw hole 416 is formed in the base extension 415. The screw hole 416 is a hole through which a second lighting fixture fixture 80 (described later) for fixing the second lighting fixture 30 to the fixture bottom 110 of the lighting fixture 10 is inserted.

[0060] The outer shell 42 forms the outer shell of the second lighting fixture 30 and constitutes an exterior design part of the second lighting fixture 30. The outer shell 42 is formed using a light-blocking material. The outer shell 42 is also formed using a flame-retardant or non-flammable material. The outer shell 42 is also formed using a thermally conductive material. As shown in FIGS. 11 and 13 , the outer shell 42 is formed in the shape of a rectangular prism box with an opening 42a on one side. The outer shell 42 is detachably attached to the base 41 of the second lighting fixture 30. More specifically, the outer shell 42 is attached to the pedestal 44 so as to cover the base 41. By attaching the outer shell 42 to the pedestal 44, the outer shell 42 is attached to the base 41 via the pedestal 44. By attaching the outer shell 42 to the base 44, the outer shell 42 covers and accommodates the second light source unit 31 excluding the exposed portion, the control unit 34, the operation unit 36 ​​excluding the exposed portion, and the insulating unit 38. That is, the outer shell 42 accommodates the second light source unit 31 and the lens unit 313 inside while leaving the lens unit 313, which is the second light emitter, exposed. The outer shell 42 forms a second space 45 that accommodates the second light source unit 31 together with the lens unit 313, which is the second light emitter. Furthermore, by attaching the outer shell 42 to the base 44, the outer shell 42 covers and accommodates the base 41 excluding the base protrusion 415, the base 44, the battery 70, and the holding member 50 inside. The outer shell 42 has an outer shell main portion 420 , outer shell long side portions 427 , outer shell short side portions 431 , and outer shell fixing members 432 .

[0061] The outer main part 420 is a wall located on the surface facing the opening 42a formed in the outer part 42. The outer main part 420 is a plate-like wall formed in a rectangular and elongated shape. The outer main part 420 faces the base bottom part 410 when the outer part 42 is attached to the base part 44. The outer main part 420 forms part of the underside of the lighting device 1 when the second illuminator 30 is attached to the lighting fixture 10. The outer main part 420 has a second translucent member arrangement part 421 and an operation part arrangement part 425.

[0062] The second light-transmitting member arrangement portion 421 is a portion of the outer main portion 420 that faces the second light-transmitting portion 312 arranged inside the housing 40. That is, in the second lighting device 30, the second light-transmitting portion 312 is arranged below the second light-transmitting member arrangement portion 421. The second light-transmitting member arrangement portion 421 has a step portion 422.

[0063] The step portion 422 is a flat wall portion formed so that the wall of the outer main portion 420 is recessed inward. Therefore, as shown in FIG. 9, the outer main portion 42 is recessed inward at the step portion 422. As shown in FIGS. 11 and 13, a step is formed between the step portion 422 and the outer surface 420a of the outer main portion 420. The step portion 422 has a light-transmitting portion through-hole 423 and a screw hole 424. The light-transmitting portion through-hole 423 is a through-hole formed in the step portion 422. When the outer main portion 42 is attached to the base portion 44, the light-transmitting portion through-hole 423 is formed in a position facing the lens portion 313, which is the second light-emitting portion. Therefore, when the outer shell 42 is attached to the base 44, as shown in FIGS. 9 and 10 , the lens 313 of the second light-transmitting portion 312 arranged inside the housing 40 is exposed to the outside from the step 422 via the light-transmitting portion through-hole 423. Furthermore, when the outer shell 42 is attached to the base 44, as shown in FIGS. 9 and 10 , the lens 313 of the second light-transmitting portion 312 arranged inside the housing 40 partially protrudes to the outside from the step 422 via the light-transmitting portion through-hole 423. Screw holes 424 are formed in two locations on the step 422, with the light-transmitting portion through-hole 423 in between. The screw holes 424 are holes through which outer shell fixing devices 432 for fixing the outer shell 42 to the base 44 are inserted.

[0064] The operation unit arrangement section 425 is a portion of the outer main portion 420 that faces the operation unit 36 ​​arranged inside the housing 40. That is, in the second lighting device 30, the operation unit 36 ​​is arranged below the operation unit arrangement section 425. An operation through-hole 426 is formed in the operation unit arrangement section 425. The operation through-hole 426 is a through-hole formed in the operation unit arrangement section 425. When the outer portion 42 is attached to the base 44, as shown in FIGS. 10 and 12 , an operation surface section 360 of the operation unit 36 ​​arranged inside the housing 40 is exposed from the wall surface of the operation unit arrangement section 425 through the operation through-hole 426. By exposing the operation surface section 360 on the underside of the lighting device 1, an operator can operate the operation button 361 of the operation unit 36 ​​and can also recognize the on / off of the indicator light 362.

[0065] As shown in FIGS. 11 to 13, the outer longitudinal side portions 427 constitute the side walls of the outer shell portion 42. The outer longitudinal side portions 427 are formed to rise from the sides of the outer shell main portion 420 along the longitudinal direction (X-axis direction) of the outer shell main portion 420. The outer longitudinal side portions 427 have an outer shell outer portion 428 and an outer shell inner portion 429. The outer shell outer portion 428 and the outer shell inner portion 429 are formed to face each other. When the outer shell 42 is attached to the base portion 44, the outer shell outer portion 428 faces the base side portion 414, which is formed to extend in the longitudinal direction (X-axis direction). When the outer shell 42 is attached to the base portion 44, the outer shell inner portion 429 is arranged on the projecting side of the base projecting portion 415. 9, when the second illuminator 30 is attached to the lighting fixture 10, the outer shell part 428 forms an outer side wall in the short-side direction (Y-axis direction) of the lighting device 1 and the second illuminator 30. In addition, the inner shell part 429 forms an inner side wall of the second illuminator 30 relative to the outer shell part 428 in the short-side direction (Y-axis direction) of the lighting device 1.

[0066] When the second illuminator 30 is attached to the lighting fixture 10, the outer casing inside portion 429 is disposed along the fixture side portion 111 of the lighting fixture 10 and abuts against the fixture side portion 111. When the second illuminator 30 is attached to the lighting fixture 10, the outer casing inside portion 429 functions as a partition wall separating the storage portion 18 of the lighting fixture 10 from the components of the second illuminator 30, as shown in FIG. 9 . That is, when the first illuminator 20 is attached to the lighting fixture 10, the outer casing 42 is disposed on the lighting fixture 10 so as to separate the lens portion 313, which is the second light-emitting portion, from the main portion 220, which is the first light-emitting portion. The storage portion 18, which is the first space, and the second space 45 are separated by the outer casing 42. That is, in the lighting device 1, the space connecting the lighting fixture 10 to the second illuminator 30 is divided by the outer casing 42 into the storage portion 18, which is the first space, and the second space 45. The outer casing inner portion 429 functions as a heat shielding wall, reducing the effect of operating heat generated by the first illuminator 20 on the second light source unit 31, the control unit 34, the battery 70, and other components of the second illuminator 30. The outer casing inner portion 429 also functions as a heat dissipation path for transmitting operating heat generated by the first illuminator 20 to the outside or to the lighting fixture 10. That is, the outer casing 42 functions as a heat transfer path from the accommodation portion 18, which is the first space, to the attachment portion 9, or functions as a heat transfer path from the accommodation portion 18, which is the first space, to the lighting space illuminated by the first illuminator 20 or the second illuminator 30. The outer casing 42 also functions as a heat transfer path from the second space 45 to the attachment portion 9, or functions as a heat transfer path from the second space 45 to the lighting space illuminated by the first illuminator 20 or the second illuminator 30. A notch 430 is formed in the outer casing inner portion 429. The cutout portion 430 is a through-hole formed by cutting out a part of the wall of the outer shell inner portion 429, and serves as a wiring path between the first lighting device 20 and the second lighting device 30.

[0067] As shown in Figs. 11 to 13, the outer short side portions 431 form the side walls of the outer portion 42. The outer short side portions 431 are formed to rise from the side edges of the outer main portion 420 along the short side direction (Y-axis direction) of the outer main portion 420. The outer short side portions 431 form wall portions at both ends in the longitudinal direction (X-axis direction) of the outer portion 42. When the second illuminator 30 is attached to the lighting fixture 10, the outer short side portions 431 form part of the side walls at both ends in the longitudinal direction (X-axis direction) of the second illuminator 30.

[0068] The outer long side portions 427 and the outer short side portions 431 of the outer portion 42 are arranged so as to pass through the fixture inclined portion 114 when the second illuminator 30 is attached to the lighting fixture 10.

[0069] The outer shell part fixing device 432 fixes the outer shell part 42 to the base part 44. The outer shell part fixing device 432 is inserted into a screw hole 424 formed in the step part 422, and is screwed into a screw hole 442 formed in the second light source part attachment part 440 of the base part 44. The outer shell part fixing device 432 is, for example, a thumb screw. As shown in FIG. 13 , a nut 434 may be used for the outer shell part fixing device 432.

[0070] The housing 40 also forms a mounting structure for the second light source 31 and the like in the second space 45 by means of the pedestal 44. The pedestal 44 is where the second light source 31, the holding portion 317, the control unit 34, the operation unit 36, the insulating unit 38, and the like are mounted, and the respective components mounted on the pedestal 44 are arranged on the base 41. As shown in FIG. 14 , the pedestal 44 has a second light source mounting portion 440, an operation unit mounting portion 443, a control unit mounting portion 445, and a connecting portion 447.

[0071] The second light source unit mounting portion 440 is a portion formed in a plate shape. The second light source unit 31 and the insulating portion 38 are placed and mounted on the second light source unit mounting portion 440. The outer casing 42 is also mounted on the second light source unit mounting portion 440. The second light source unit mounting portion 440 receives operating heat emitted by the second light source unit 31 and dissipates the received heat. The second light source unit mounting portion 440 is formed with screw holes 441 and screw holes 442. The screw holes 441 are formed in two locations corresponding to the main portion screw holes 323 of the second light source unit 31. Second light source unit fixing devices 327 for fixing the second light source unit 31 to the second light source unit mounting portion 440 are attached to the screw holes 441. The screw holes 442 are formed in two locations corresponding to the screw holes 424 of the outer casing 42. An outer shell fixing member 432 for fixing the outer shell 42 to the second light source unit mounting portion 440 is attached to the screw hole 442 .

[0072] The operation unit attachment portion 443 is a portion formed in a plate shape. The operation unit 36 ​​is placed and attached to the operation unit attachment portion 443. A screw hole 444 is formed in the operation unit attachment portion 443. An operation unit fixture 363 for fixing the operation unit 36 ​​to the operation unit attachment portion 443 is attached to the screw hole 444.

[0073] The control unit attachment portion 445 is a portion formed in a plate shape. The control unit 34 is placed and attached to the control unit attachment portion 445. The control unit attachment portion 445 receives operating heat emitted by the second light source unit 31 via the connecting portion 447 and functions as a heat dissipation path that transfers the received heat to the base unit 41 and the lighting device 10. A screw hole 446 is formed in the control unit attachment portion 445. A control unit fixture 346 for fixing the control unit 34 to the control unit attachment portion 445 is attached to the screw hole 446.

[0074] The connecting portion 447 is a side wall that interconnects the second light source unit mounting portion 440, the operation unit mounting portion 443, and the control unit mounting portion 445. The connecting portion 447 is a plate member that extends vertically when the plate surfaces of the second light source unit mounting portion 440, the operation unit mounting portion 443, and the control unit mounting portion 445 are assumed to be horizontal. Note that the vertical direction does not necessarily have to be strictly perpendicular to the horizontal direction, and the connecting portion 447 may be inclined with respect to the second light source unit mounting portion 440, the operation unit mounting portion 443, or the control unit mounting portion 445. The connecting portion 447 connects the second light source unit mounting portion 440 and the control unit mounting portion 445 so that they face each other, and also connects the operation unit mounting portion 443 and the control unit mounting portion 445 so that they face each other. The connecting portion 447 receives operating heat emitted by the second light source unit 31 and functions as a heat dissipation path that transfers the received heat to the base 41 and the lighting device 10.

[0075] The base 44 is formed so that the distance between the second light source unit mounting portion 440 and the control unit mounting portion 445 is greater than the distance between the operation unit mounting portion 443 and the control unit mounting portion 445. The distance between the second light source unit mounting portion 440 and the control unit mounting portion 445 and the distance between the operation unit mounting portion 443 and the control unit mounting portion 445 may differ depending on the thickness of the second light source unit 31, the thickness of the operation unit 36, etc. Therefore, the base 44 may be formed so that the distance between the second light source unit mounting portion 440 and the control unit mounting portion 445 is equal to or smaller than the distance between the operation unit mounting portion 443 and the control unit mounting portion 445. In the base 44, the connecting portion 447, the second light source unit mounting portion 440, the operation unit mounting portion 443, and the control unit mounting portion 445 are integrally formed, but these may also be formed separately. The base 44 has an opening 44a formed by the operation unit attachment portion 443 and the control unit attachment portion 445 at a position facing the connecting portion 447. The opening 44a is formed in a position on the base 44 where at least the battery 70 is disposed. When the outer casing 42 of the lighting device 1 is attached to the base 44, at least a portion of the opening 44a is covered by the outer casing 42.

[0076] (holding member 50) FIG. 15 is a perspective view of the battery 70 arranged in the base 41 of FIG. 13. FIG. 16 is a cross-sectional view of the lighting device 1 of FIG. 4 taken along line BB. FIG. 17 is a schematic cross-sectional view showing the attachment and detachment of the battery 70 of FIG. 15. FIG. 18 is a schematic cross-sectional view showing the attachment and detachment of the battery 70 of FIG. 16. Next, the holding member 50 will be described with reference to FIGS. 11 and 15 to 18. The holding member 50 is an elastic member such as a leaf spring, and holds the battery 70 arranged in the housing 40. The holding member 50 has a fixing portion 51, a holding portion 53, and a holding member fixture 54.

[0077] The fixing portion 51 is a flat plate-shaped plate portion. As shown in FIGS. 15 and 16 , the fixing portion 51 is inserted into a holding member fixing portion 411 formed on the base 41, thereby engaging with the base 41 and being attached to the base 41. When the fixing portion 51 is inserted into the holding member fixing portion 411 formed on the base 41, the fixing portion 51 abuts against the base 41. As shown in FIG. 11 , a fixing hole 52 is formed in the fixing portion 51. A holding member fixing device 54 for fixing the holding member 50 to the base 41 is fitted into the fixing hole 52. As shown in FIG. 16 , when the second illuminator 30 is attached to the lighting fixture 10, the fixing portion 51 is arranged to be substantially parallel to the attached portion 9.

[0078] The holding portion 53 is formed integrally with the fixed portion 51 and is a plate-like portion that rises from the fixed portion 51. The holding portion 53 is a plate-like portion that extends in the vertical direction when the plate surface of the fixed portion 51 is horizontal. When the holding member 50 is attached to the base 41, the holding portion 53 faces the base side portion 414, as shown in FIG. 17 . The holding portion 53 is inclined with respect to the plate surface of the fixed portion 51 so as to approach the fixed portion 51, and it is desirable that the angle between the plate surface of the holding portion 53 and the plate surface of the fixed portion 51 be 90 degrees or less. Therefore, when the holding member 50 is attached to the base 41, the holding portion 53 is inclined so as to approach the base side portion 414.

[0079] The holding portion 53 has a holding bent portion 53c at its tip. The holding bent portion 53c is bent in a mountain shape in a cross section in the direction in which the holding portion 53 rises, and is formed so as to protrude above the plate surface of the fixing portion 51. More specifically, the holding portion 53 has a sidewall fixing portion 53b connected to the fixing portion 51 and a holding bent portion 53c formed at the tip of the sidewall fixing portion 53b. The holding bent portion 53c has a first inclined portion 53c1 connected to the sidewall fixing portion 53b and a second inclined portion 53c2 connected to the first inclined portion 53c1. The sidewall fixing portion 53b is inclined with respect to the plate surface of the fixing portion 51 so as to approach the fixing portion 51, and the first inclined portion 53c1 of the holding bent portion 53c is inclined with respect to the plate surface of the fixing portion 51 so as to be closer to the fixing portion 51 than the sidewall fixing portion 53b. The second inclined portion 53c2 of the holding bent portion 53c is inclined in the opposite direction to the inclination direction of the first inclined portion 53c1. Therefore, the first inclined portion 53c1 and the second inclined portion 53c2 form an L-shaped cross section of the holding bent portion 53c. The holding portion 53 is integrally formed with the side wall fixing portion 53b, the first inclined portion 53c1, and the second inclined portion 53c2.

[0080] The holding portion 53 has spring properties and is elastically deformable. As shown in FIG. 16 , when the second lighting device 30 is attached to the lighting fixture 10, the holding portion 53 is disposed so as to extend in the up-down direction (Z-axis direction) of the lighting device 1. Furthermore, when the outer casing 42 is attached to the base 44, as shown in FIG. 16 , the holding portion 53 abuts against the inner outer casing portion 429 of the outer casing 42, thereby restricting elastic deformation and holding the battery 70. That is, when the outer casing 42 is attached to the base 44, the holding member 50 has a narrower range of movement than when the outer casing 42 is not attached to the base 44. In contrast, as shown in FIG. 18 , when the outer casing 42 is not attached to the base 44, the holding member 50 is elastically deformable within a range of movement that allows the battery 70 to be attached and detached.

[0081] The holding member fixture 54 is a member that fixes the holding member 50 to the base 41. The holding member fixture 54 is, for example, a screw, a rivet, or the like. The holding member fixture 54 is inserted through the fixing hole 52 formed in the fixing portion 51 and the mounting hole 413 formed in the base bottom 410 shown in FIG. 6 .

[0082] (Battery 70) Next, the battery 70 will be described with reference to FIGS. 11 and 15 to 18. The battery 70 supplies second lighting power to the second light source unit 31. The battery 70 is a storage battery. The battery 70 is a so-called four-cell storage battery, but the number of cells constituting the battery 70 is not limited to four and may be other numbers, such as six. The battery 70 is detachably held to the base 41 by a holding member 50. When the outer shell 42 is attached to the pedestal 44, as shown in FIG. 16, the battery 70 is held to the base 41 of the housing 40 while being held by the holding member 50. That is, when the battery 70 is placed inside the housing 40, the battery 70 abuts against the inner surface of the housing 40 and is held inside the second space 45 by the holding member 50 attached to the housing 40. More specifically, when the outer casing 42 is attached to the base 44, the battery 70 abuts against the holding bent portion 53c and the base side portion 414 by the holding bent portion 53c, and the holding bent portion 53c supports the lower portion of the battery 70, restricting downward movement of the battery 70. At this time, as described above, the holding portion 53 abuts against the outer casing inner portion 429 of the outer casing 42, thereby restricting elastic deformation. When the outer casing 42 is detached from the base 41, as shown in FIG. 18 , the worker can remove the battery 70 downward by elastically deforming the holding member 50. At this time, the holding portion 53 does not abut against the outer casing inner portion 429 of the outer casing 42, and therefore elastic deformation is not restricted. In FIG. 18, arrow S indicates the direction in which the battery 70 or the outer casing 42 is attached to the base 41, and arrow R indicates the direction in which the battery 70 or the outer casing 42 is removed from the base 41.

[0083] (Second lighting fixture fixture 80) Next, the second lighting fixture fixture 80 will be described with reference to Fig. 6. The second lighting fixture fixture 80 is a member that fixes the second lighting fixture 30 to the lighting fixture 10. The second lighting fixture fixture 80 is, for example, a screw, a rivet, or the like. The second lighting fixture fixture 80 is inserted into a screw hole 113 formed in the fixture bottom 110 and a screw hole 416 formed in the base protrusion 415.

[0084] (Hanging string 60) Fig. 19 is a perspective view of the lighting device 1 of Fig. 1 with the outer casing 42 of the second lighting device 30 removed. The hanging cord 60 temporarily fixes the outer casing 42 of the second lighting device 30 to the lighting fixture 10. The hanging cord 60 is a cord- or rod-shaped member, and one end is fixed to the base 41 and the other end is fixed to the outer casing 42.

[0085] <Modifications of the lighting device 1> FIG. 20 is a cross-sectional view of a modified example of the lighting device 1 according to the first embodiment of the present invention, taken along line BB. The modified example of the lighting device 1 has a second lighting device 30a. The modified example of the lighting device 1 differs from the lighting device 1 only in the configuration of the second lighting device 30, with the other configurations being the same. The second lighting device 30a has a battery 70a and a housing 40a that are different from the battery 70 and housing 40 of the second lighting device 30. The second lighting device 30a differs from the second lighting device 30 only in the battery 70a and housing 40a, with the other configurations being the same. In the modified example of the lighting device 1, parts that have the same configuration as the lighting device 1 are given the same reference numerals, and their description will be omitted.

[0086] (Battery 70a) The battery 70a is a storage battery. The battery 70 is a large storage battery with six cells. The battery 70a has a different number of cells from the battery 70. (Housing part 40a) The housing 40a has a holding portion 53a. The housing 40a has the same configuration as the holding portion 53 of the housing 40, except for the configuration of the holding portion 53a. The holding portion 53a has a sidewall fixing portion 53b1 connected to the fixing portion 51 and a holding bent portion 53c formed at the tip of the sidewall fixing portion 53b1. The holding portion 53a is formed in a shape suitable for holding a large, so-called six-cell storage battery. For example, the battery 70a is larger than the battery 70, and the sidewall fixing portion 53b1 is formed longer in the vertical direction (Z-axis direction) than the sidewall fixing portion 53b. In other words, the distance between the fixing portion 51 and the holding bent portion 53c of the holding portion 53a is greater than the distance between the fixing portion 51 and the holding bent portion 53c of the holding portion 53.

[0087] Embodiment 2 FIG. 21 is a perspective view of a lighting device 1b according to Embodiment 2 of the present invention, viewed from a first direction. FIG. 22 is a perspective view of a lighting device 1b according to Embodiment 2 of the present invention, viewed from a second direction. FIG. 23 is a front view of a lighting device 1b according to Embodiment 2 of the present invention. FIG. 24 is a bottom view of a lighting device 1b according to Embodiment 2 of the present invention. FIG. 25 is a rear view of a lighting device 1b according to Embodiment 2 of the present invention. FIG. 26 is a top view of a lighting device 1b according to Embodiment 2 of the present invention. FIG. 27 is a side view of a lighting device 1b according to Embodiment 2 of the present invention. The configuration of a lighting device 1b according to Embodiment 2 will be described with reference to FIGS. 21 to 27, focusing on configurations that differ from the configuration of the lighting device 1 according to Embodiment 1. Note that parts having the same configuration as those of the lighting device 1 in FIGS. 1 to 20 are denoted by the same reference numerals, and description thereof will be omitted. The first direction in FIG. 21 is a direction in which the lighting device 1b is viewed from below, on the side where the second illuminator 30 is not provided, in the short-side direction (Y-axis direction) of the lighting device 1b. 22 is the direction in which the lighting device 1b is viewed from below the side where the second illuminator 30 is provided, in the widthwise direction (Y-axis direction) of the lighting device 1b.

[0088] <Lighting device 1b> The lighting device 1b is installed at a position where it can illuminate the lighting space, and illuminates the lighting space. The lighting device 1b of the second embodiment is a so-called V-shaped (250 mm wide) lighting device.

[0089] The lighting device 1b includes an elongated lighting fixture 10b that is attached to a mounting portion 9 such as a ceiling or a wall, an elongated first lighting fixture 20 that is detachably attached to the lighting fixture 10b, and a second lighting fixture 30 that is attached to the lighting fixture 10b. In the lighting device 1b, the first lighting fixture 20 and the second lighting fixture 30 are arranged side by side in the short side direction (Y-axis direction).

[0090] [Lighting fixture 10b] Lighting fixture 10b has fixture main body 11b, fixture end portion 12b, fixture side connector 13, fixture side terminal block 14, fixture side fixing device 15, and fixture side power line 16. Lighting device 1b of embodiment 2 differs in the configuration of lighting fixture 10b from lighting fixture 10 of lighting device 1 of embodiment 1.

[0091] (Apparatus main body 11b) The fixture body 11b is a housing that forms the outer shell of the lighting fixture 10b. The fixture body 11b is attached to the mounting portion 9 using fasteners such as bolts. The fixture body 11b has a fixture bottom 110, fixture side portions 111, fixture inclined portions 114b, and fixture side edge portions 117b. The fixture bottom 110, fixture side portions 111, fixture inclined portions 114b, and fixture side edge portions 117b are integrally formed, for example, by bending a metal plate. However, the fixture body 11b is not limited to being formed by bending a metal plate, and may be formed using other materials such as resin or ceramic, or may be formed by other methods such as extrusion molding or additive manufacturing. Furthermore, the appliance bottom portion 110, the appliance side portion 111, the appliance inclined portion 114b, and the appliance side edge portion 117b are not limited to being formed integrally, but may be formed separately as long as these components are securely fixed to each other.

[0092] The fixture inclined portions 114b are inclined walls provided in a pair on both sides of the accommodation portion 18 in the lateral direction (Y-axis direction) of the fixture main body 11b. The fixture inclined portions 114b are formed so as to be inclined with respect to the mounting surface of the mount portion 9. The pair of fixture inclined portions 114b are formed from each of the longitudinal sides of the fixture side edge portion 117b upward (toward the Z1 direction) and away from the accommodation portion 18. That is, the fixture inclined portions 114b are inclined so that the distance between the ends of the fixture inclined portions 114b on the mount portion 9 side in the vertical direction (Z-axis direction) of the fixture main body 11b is wider than the distance between the ends of the fixture inclined portions 114b on the illumination space side. In the lighting device 1b, the accommodation portion 18 is formed between the pair of fixture inclined portions 114b in the lateral direction (Y-axis direction). The fixture inclined portions 114b form an inclined surface and may reflect light emitted from the light source toward the illumination space. The distance between both ends of the fixture tilting portion 114b in the short side direction (Y-axis direction) of the lighting device 1b is greater than the distance between both ends of the fixture tilting portion 114 in the lighting device 1 in the short side direction (Y-axis direction).

[0093] The appliance side edges 117b are edges of the storage section 18 that are provided in pairs on both sides of the storage section 18 in the short-side direction (Y-axis direction) of the appliance main body 11b. The appliance side edges 117b are formed between the appliance side section 111 and the appliance inclined section 114b. The appliance side edges 117b are formed at the tip end of the appliance side section 111 opposite the appliance bottom section 110, and are formed in pairs so as to be spaced apart from each other from the tip end of the pair of appliance side sections 111. The appliance side edges 117b form the underside of the appliance main body 11b.

[0094] A fixture through-hole 115b is formed in the fixture inclined portion 114b and the fixture side edge portion 117b, which are formed on one side of the fixture main body 11b in the short-side direction (Y-axis direction) with the accommodation portion 18 interposed therebetween. The fixture through-hole 115b is formed in the center of the fixture main body 11b in the longitudinal direction (X-axis direction). As shown in FIG. 24 , the fixture through-hole 115b is formed in a rectangular shape in the fixture main body 11b in a plan view of the mounting portion 9 seen from the lighting space side. A second lighting fixture 30 is inserted through this fixture through-hole 115b, and the second lighting fixture 30 is disposed in the fixture through-hole 115b so as to protrude from the fixture inclined portion 114b and the fixture side edge portion 117b toward the lighting space side. Therefore, the fixture through-hole 115b only needs to be formed in accordance with the shape and dimensions of the outer casing 42 of the second lighting fixture 30, and is not limited to a rectangular shape in a plan view of the mounting portion 9 seen from the lighting space side. The instrument penetration portion 115b functions as an attachment / detachment opening for the outer shell portion 42 or as an attachment / detachment opening.

[0095] (Instrument end 12b) The fixture end portions 12b are arranged at both ends of the fixture main body 11b in the longitudinal direction (X-axis direction). The fixture end portion 12b has end plates 120b that cover the ends of the fixture main body 11b in the longitudinal direction (X-axis direction). The end plates 120b form side walls of the fixture main body 11b that extend in the lateral direction (Y-axis direction) of the fixture main body 11b. The end plates 120b are arranged at the ends of the fixture inclined portion 114b and the fixture side edge portion 117b in the longitudinal direction (X-axis direction), and together with the fixture main body 11b, form the outer shell of the lighting fixture 10b. The distance between both ends of the fixture end portion 12b in the lateral direction (Y-axis direction) of the lighting device 1b is greater than the distance between both ends of the fixture end portion 12 of the lighting device 1 in the lateral direction (Y-axis direction). The end plate 120b has knockout portions 121 that form through holes in the end plate 120b by removing part of the wall that forms the end plate 120b.

[0096] Embodiment 3 FIG. 28 is a perspective view of a lighting device 1c according to Embodiment 3 of the present invention, viewed from a first direction. FIG. 29 is a perspective view of a lighting device 1c according to Embodiment 3 of the present invention, viewed from a second direction. FIG. 30 is a front view of a lighting device 1c according to Embodiment 3 of the present invention. FIG. 31 is a bottom view of a lighting device 1c according to Embodiment 3 of the present invention. FIG. 32 is a rear view of a lighting device 1c according to Embodiment 3 of the present invention. FIG. 33 is a top view of a lighting device 1c according to Embodiment 3 of the present invention. FIG. 34 is a side view of a lighting device 1c according to Embodiment 3 of the present invention. With reference to FIGS. 28 to 34, the configuration of a lighting device 1c according to Embodiment 3 will be described, focusing on differences from the configuration of the lighting device 1 according to Embodiment 1. Note that parts having the same configuration as those of the lighting device 1 in FIGS. 1 to 20 are denoted by the same reference numerals, and description thereof will be omitted. The first direction in FIG. 28 is a direction in which the lighting device 1c is viewed from below, on the side where the second illuminator 30 is not provided, in the short-side direction (Y-axis direction) of the lighting device 1c. 29 is the direction in which the lighting device 1c is viewed from below the side where the second illuminator 30 is provided, in the short-side direction (Y-axis direction) of the lighting device 1c.

[0097] <Lighting device 1c> The lighting device 1c is installed at a position where it can illuminate the lighting space, and illuminates the lighting space. The lighting device 1c of the third embodiment is a so-called trough-type lighting device.

[0098] The lighting device 1c includes an elongated lighting fixture 10c that is attached to a mounting portion 9 such as a ceiling or a wall, an elongated first lighting fixture 20 that is detachably attached to the lighting fixture 10c, and a second lighting fixture 30 that is attached to the lighting fixture 10c. In the lighting device 1c, the first lighting fixture 20 and the second lighting fixture 30 are arranged side by side in the short side direction (Y-axis direction). As shown in FIG. 29 , the lighting device 1c is arranged to the side of the lighting fixture 10c in the short side direction (Y-axis direction) of the lighting device 1c. The lighting device 1c of the third embodiment differs from the lighting device 1 of the first embodiment and the lighting device 1b of the second embodiment in that the second lighting fixture 30 is arranged outside the lighting fixture 10c.

[0099] [Lighting equipment 10c] Lighting fixture 10c has fixture main body 11c, fixture end portion 12c, fixture side connector 13, fixture side terminal block 14, fixture side fixing device 15, and fixture side power line 16. Lighting device 1c of embodiment 3 differs in configuration from lighting fixture 10 of lighting device 1 of embodiment 1.

[0100] (Apparatus body 11c) The fixture body 11c is a housing that forms the outer shell of the lighting fixture 10c. The fixture body 11c is attached to the mounting portion 9 using fasteners such as bolts. The fixture body 11c has a fixture bottom 110, fixture side portions 111, and fixture side edge portions 117c. The fixture bottom 110, fixture side portions 111, and fixture side edge portions 117c are integrally formed, for example, by bending a metal plate. However, the fixture body 11c is not limited to being formed by bending a metal plate, and may be formed using other materials such as resin or ceramic, or may be formed by other methods such as extrusion molding or additive manufacturing. The fixture bottom 110 and fixture side portions 111 are not limited to being integrally formed, and may be formed separately as long as these components are securely fixed to each other. The fixture side edges 117c are edges of the storage section 18 that are provided in pairs on both sides of the storage section 18 in the short direction (Y-axis direction) of the fixture main body 11c. The fixture side edges 117c are formed at the tip of the fixture side section 111 on the side opposite the fixture bottom section 110. The fixture main body 11c of the third embodiment forms the outer shell of a so-called trough-shaped lighting fixture 10, and differs from the fixture main body 11 of the first embodiment in that it does not have the fixture inclined section 114.

[0101] (Instrument end 12c) The fixture end portions 12c are arranged at both ends of the fixture main body 11c in the longitudinal direction (X-axis direction). The fixture end portions 12c have end plates 120c that cover the ends of the fixture main body 11c in the longitudinal direction (X-axis direction). The end plates 120c form side walls of the fixture main body 11c that extend in the short direction (Y-axis direction) of the fixture main body 11c. The end plates 120c are arranged at the ends of the fixture bottom 110 and the fixture side portions 111 in the longitudinal direction (X-axis direction), and together with the fixture main body 11c, form the outer shell of the lighting fixture 10c. The end plates 120c are formed with knockout portions 121c that form through holes in the end plates 120c by removing part of the wall portions that form the end plates 120c.

[0102] Embodiment 4 FIG. 35 is a perspective view of a lighting device 1d according to embodiment 4 of the present invention, viewed from a first direction. FIG. 36 is a perspective view of a lighting device 1d according to embodiment 4 of the present invention, viewed from a second direction. FIG. 37 is a front view of a lighting device 1d according to embodiment 4 of the present invention. FIG. 38 is a bottom view of a lighting device 1d according to embodiment 4 of the present invention. FIG. 39 is a rear view of a lighting device 1d according to embodiment 4 of the present invention. FIG. 40 is a top view of a lighting device 1d according to embodiment 4 of the present invention. FIG. 41 is a side view of a lighting device 1d according to embodiment 4 of the present invention. The configuration of a lighting device 1d according to embodiment 4 will be described with reference to FIGS. 35 to 41, focusing on differences from the configuration of the lighting device 1 according to embodiment 1. Note that parts having the same configuration as those of the lighting device 1 in FIGS. 1 to 20 are denoted by the same reference numerals, and description thereof will be omitted. The first direction in FIG. 35 is a direction in which the lighting device 1d is viewed from below, on the side where the second illuminator 30 is not provided, in the short-side direction (Y-axis direction) of the lighting device 1d. The second direction in FIG. 36 is the direction in which the lighting device 1d is viewed from below the side where the second illuminator 30 is provided, in the short-side direction (Y-axis direction) of the lighting device 1d.

[0103] <Lighting device 1d> The lighting device 1d is installed at a position where it can illuminate the lighting space, and illuminates the lighting space. The lighting device 1d of the fourth embodiment is a so-called recessed lighting device.

[0104] The lighting device 1d includes an elongated lighting fixture 10d that is attached to a mounting portion 9 such as a ceiling or a wall, an elongated first lighting fixture 20 that is detachably attached to the lighting fixture 10d, and a second lighting fixture 30 that is attached to the lighting fixture 10d. In the lighting device 1d, the first lighting fixture 20 and the second lighting fixture 30 are arranged side by side in the short side direction (Y-axis direction).

[0105] [Lighting fixture 10d] Lighting fixture 10d has fixture main body 11d, fixture end portion 12d, fixture side connector 13, fixture side terminal block 14, fixture side fixing device 15, and fixture side power line 16. Lighting device 1d of embodiment 4 differs in the configuration of lighting fixture 10 of lighting device 1 of embodiment 1.

[0106] (Apparatus body 11d) The fixture body 11d is a housing that forms the outer shell of the lighting fixture 10d. The fixture body 11d is attached to the mounting portion 9 using fasteners such as bolts. The fixture body 11d has a fixture bottom 110, fixture side portions 111d, fixture inclined portions 114d, and fixture side edge portions 117d. The fixture bottom 110, fixture side portions 111d, fixture inclined portions 114d, and fixture side edge portions 117d are integrally formed, for example, by bending a metal plate. However, the fixture body 11d is not limited to being formed by bending a metal plate, and may be formed using other materials such as resin or ceramic, or may be formed by other methods such as extrusion molding or additive manufacturing. Furthermore, the appliance bottom 110, the appliance side 111d, the appliance inclined portion 114d, and the appliance side edge 117d are not limited to being formed integrally, but may be formed separately as long as these components are securely fixed to each other.

[0107] The fixture main body 11d defines a concave-shaped accommodation section 18 formed by a fixture bottom 110, fixture side sections 111d, and fixture end sections 12d (described later). The accommodation section 18 has a bottom surface formed by the fixture bottom 110, side walls extending in the longitudinal direction formed by the fixture side sections 111d, and side walls extending in the lateral direction formed by the fixture end sections 12d. The first lighting fixture 20 is attached to accommodation section 18, with a portion of the first lighting fixture 20 being accommodated therein.

[0108] The fixture inclined portions 114d are inclined walls provided in pairs on both sides of the accommodation portion 18 in the lateral direction (Y-axis direction) of the fixture main body 11b. The fixture inclined portions 114d are formed so as to be inclined with respect to the mounting surface of the mount portion 9. The pair of fixture inclined portions 114d are formed so as to be spaced apart downward (toward the Z2 side) from the accommodation portion 18. That is, the fixture inclined portions 114d are inclined so that the distance between their ends on the illumination space side in the vertical direction (Z-axis direction) of the fixture main body 11d is wider than the distance between their ends on the mount portion 9 side. In the lighting device 1d, the accommodation portion 18 is not disposed between the pair of fixture inclined portions 114d in the lateral direction (Y-axis direction), and the pair of fixture inclined portions 114d are formed so as to face each other. However, in a plan view of the lighting device 1d seen from the illumination space side, the accommodation portion 18 is disposed between the pair of fixture inclined portions 114d. The fixture inclined portion 114d forms an inclined surface and may reflect the light emitted from the light source toward the illumination space.

[0109] The appliance side edges 117d are edges of the storage section 18 that are provided in pairs on both sides of the storage section 18 in the short direction (Y-axis direction) of the appliance main body 11d. The appliance side edges 117d are formed between the appliance side section 111d and the appliance inclined section 114d. The appliance side edges 117d are formed at the tip end of the appliance side section 111d on the side opposite the appliance bottom section 110, and are formed in pairs so as to be spaced apart from each other from the respective tip ends of the pair of appliance side sections 111d.

[0110] A fixture through-hole 115d is formed in the fixture inclined portion 114d and the fixture side edge portion 117d, which are formed on one side of the fixture main body 11d in the short-side direction (Y-axis direction) with the accommodation portion 18 sandwiched between them. The fixture through-hole 115d is formed in the center of the fixture main body 11d in the longitudinal direction (X-axis direction). As shown in FIG. 38 , the fixture through-hole 115d is formed in a rectangular shape in the fixture main body 11d in a plan view of the mounting portion 9 seen from the lighting space side. A second lighting fixture 30 is inserted through this fixture through-hole 115d, and the second lighting fixture 30 is disposed in the fixture through-hole 115d so as to protrude from the fixture inclined portion 114d and the fixture side edge portion 117d toward the lighting space side. Therefore, the fixture through-hole 115d only needs to be formed in accordance with the shape and dimensions of the outer casing 42 of the second lighting fixture 30, and is not limited to a rectangular shape in a plan view of the mounting portion 9 seen from the lighting space side. The instrument penetration portion 115d functions as an attachment / detachment opening for the outer shell portion 42 or as an attachment / detachment opening.

[0111] (Instrument end 12d) The fixture end portions 12d are arranged at both ends of the fixture main body 11d in the longitudinal direction (X-axis direction). The fixture end portions 12d cover the ends of the fixture main body 11d in the longitudinal direction (X-axis direction). The fixture end portions 12d form side walls of the fixture main body 11d that extend in the lateral direction (Y-axis direction) of the fixture main body 11d. The fixture end portions 12d, together with the fixture main body 11d, form the outer shell of the lighting fixture 10d.

[0112] Embodiment 5 FIG. 42 is a perspective view of a lighting device 1e according to embodiment 5 of the present invention, viewed from a first direction. FIG. 43 is a perspective view of a lighting device 1e according to embodiment 5 of the present invention, viewed from a second direction. FIG. 44 is a front view of a lighting device 1e according to embodiment 5 of the present invention. FIG. 45 is a bottom view of a lighting device 1e according to embodiment 5 of the present invention. FIG. 46 is a rear view of a lighting device 1e according to embodiment 5 of the present invention. FIG. 47 is a top view of a lighting device 1e according to embodiment 5 of the present invention. FIG. 48 is a side view of a lighting device 1e according to embodiment 5 of the present invention. With reference to FIGS. 42 to 48, the configuration of a lighting device 1e according to embodiment 5 will be described, focusing on differences from the configuration of the lighting device 1 according to embodiment 1. Note that parts having the same configuration as those of the lighting device 1 in FIGS. 1 to 20 are denoted by the same reference numerals, and description thereof will be omitted. The first direction in FIG. 42 is a direction in which the lighting device 1e is viewed from below, on the side where the second illuminator 30 is not provided, in the short-side direction (Y-axis direction) of the lighting device 1e. The second direction in FIG. 43 is the direction in which the lighting device 1e is viewed from below the side where the second illuminator 30 is provided, in the short-side direction (Y-axis direction) of the lighting device 1e.

[0113] <Lighting device 1e> The lighting device 1e is installed at a position where it can illuminate the lighting space, and illuminates the lighting space. The lighting device 1e of the fifth embodiment is a so-called recessed lighting device.

[0114] The lighting device 1e includes an elongated lighting fixture 10e that is attached to a mounting portion 9 such as a ceiling or a wall, an elongated first lighting fixture 20 that is detachably attached to the lighting fixture 10e, and a second lighting fixture 30e that is attached to the lighting fixture 10e. In the lighting device 1e, the first lighting fixture 20 and the second lighting fixture 30e are arranged side by side in the short side direction (Y-axis direction).

[0115] [Lighting fixture 10e] Lighting fixture 10e has fixture main body 11e, fixture end portion 12e, fixture side connector 13, fixture side terminal block 14, fixture side fixing device 15, and fixture side power line 16. In lighting device 1e of embodiment 5, lighting fixture 10e and second lighting fixture 30e have configurations different from lighting fixture 10 and second lighting fixture 30 of lighting device 1 of embodiment 1.

[0116] (Apparatus main body 11e) The fixture main body 11e is a housing that forms the outer shell of the lighting fixture 10e. The fixture main body 11e is attached to the attachment portion 9 using fasteners such as bolts. The fixture main body 11e has a fixture bottom 110e, fixture side portions 111e, fixture inclined portions 114e, and fixture side edge portions 117e. The fixture bottom 110e, fixture side portions 111e, fixture inclined portions 114e, and fixture side edge portions 117e are integrally formed, for example, by bending a metal plate. However, the fixture main body 11e is not limited to being formed by bending a metal plate, and may be formed using other materials such as resin or ceramic, or may be formed by other methods such as extrusion molding or additive manufacturing. Furthermore, the appliance bottom portion 110e, the appliance side portion 111e, the appliance inclined portion 114e, and the appliance side edge portion 117e are not limited to being formed integrally, but may be formed separately as long as these components are securely fixed to each other.

[0117] The fixture main body 11e defines a concave-shaped accommodation section 18 formed by a fixture bottom 110e, fixture side sections 111e, and fixture end sections 12e (described later). The accommodation section 18 has a bottom surface formed by the fixture bottom 110e, side walls extending in the longitudinal direction formed by the fixture side sections 111e, and side walls extending in the lateral direction formed by the fixture end sections 12e. The first lighting fixture 20 is attached to the accommodation section 18, and a portion of the first lighting fixture 20 is accommodated in the accommodation section 18.

[0118] The fixture inclined portions 114e are inclined walls provided in pairs on both sides of the accommodation portion 18 in the lateral direction (Y-axis direction) of the fixture main body 11e. The fixture inclined portions 114e are formed so as to be inclined with respect to the mounting surface of the mount portion 9. The pair of fixture inclined portions 114e are formed so as to be spaced apart downward (toward the Z2 side) from the accommodation portion 18. That is, the fixture inclined portions 114e are inclined so that the distance between their ends on the illumination space side in the vertical direction (Z-axis direction) of the fixture main body 11e is wider than the distance between their ends on the mount portion 9 side. In the lighting device 1e, the accommodation portion 18 is not disposed between the pair of fixture inclined portions 114e in the lateral direction (Y-axis direction), and the pair of fixture inclined portions 114e are formed so as to face each other. However, in a plan view of the lighting device 1e seen from the illumination space side, the accommodation portion 18 is disposed between the pair of fixture inclined portions 114e. The fixture inclined portion 114e forms an inclined surface and may reflect light emitted from the light source toward the illumination space.

[0119] The appliance side edges 117e are edges of the storage section 18 that are provided in pairs on both sides of the storage section 18 in the short-side direction (Y-axis direction) of the appliance main body 11e. The appliance side edges 117e are formed between the appliance side section 111e and the appliance inclined section 114e. The appliance side edges 117e are formed at the tip end of the appliance side section 111e on the side opposite the appliance bottom section 110e, and are formed in pairs so as to be spaced apart from each other from the respective tip ends of the pair of appliance side sections 111e.

[0120] An instrument through-hole 115e is formed in the instrument inclined portion 114e and the instrument side edge portion 117e, which are formed on one side of the instrument body 11e in the short direction (Y-axis direction) with the accommodation portion 18 sandwiched between them. The instrument through-hole 115e is composed of two through-holes: a first through-hole 116e and a second through-hole 118e. The first through-hole 116e and the second through-hole 118e are formed along the longitudinal direction (X-axis direction) of the instrument body 11e.

[0121] The first through-hole 116e is formed in the center of the fixture main body 11e in the longitudinal direction (X-axis direction). As shown in FIG. 45, the first through-hole 116e is formed in a rectangular shape on the fixture main body 11e in a plan view of the mounting portion 9 seen from the lighting space side. The outer casing 42e of the second lighting fixture 30e is inserted into this first through-hole 116e, and the second light source unit 31 of the second lighting fixture 30e is disposed in the first through-hole 116e so as to protrude from the fixture inclined portion 114e and the fixture side edge portion 117e toward the lighting space side. Therefore, the first through-hole 116e only needs to be formed in accordance with the shape and dimensions of the outer casing 42e of the second lighting fixture 30e, and is not limited to a rectangular shape in a plan view of the mounting portion 9 seen from the lighting space side. The fixture through-hole 115e functions as an attachment / detachment opening for the outer casing 42e.

[0122] As shown in FIG. 45 , the second through-hole 118e is formed in a rectangular shape in the fixture main body 11e in a plan view when the mounting portion 9 is viewed from the lighting space side. This second through-hole 118e is disposed so that the operation unit 36 ​​of the second lighting device 30e is exposed via the fixture inclined portion 114e and the fixture side edge portion 117e. Therefore, the second through-hole 118e only needs to be formed in accordance with the shape and dimensions of the operation unit 36 ​​of the second lighting device 30e, and is not limited to a rectangular shape in a plan view when the mounting portion 9 is viewed from the lighting space side. In the lighting device 1e, an operation surface portion 360 of the operation unit 36, such as an operation button 361 and an indicator light 362, is exposed to the outside of the fixture main body 11e through the second through-hole 118e.

[0123] (Instrument end 12e) The fixture end portions 12e are disposed at both ends of the fixture main body 11e in the longitudinal direction (X-axis direction). The fixture end portions 12e cover the ends of the fixture main body 11e in the longitudinal direction (X-axis direction). The fixture end portions 12e form side walls of the fixture main body 11e extending in the lateral direction (Y-axis direction) of the fixture main body 11e. The fixture end portions 12e, together with the fixture main body 11e, form the outer shell of the lighting fixture 10e.

[0124] [Second lighting fixture 30e] An overview of the second lighting device 30e will be described with reference to Figures 42 to 48. The second lighting device 30e is an emergency lighting device that emits light to illuminate the lighting space in an emergency when power is not supplied to the lighting device 1e from outside the lighting device 1e for some reason, such as a power outage. The second lighting device 30e has a smaller outer shell 42e exposed from the lighting device 10e than the lighting device 10 of the first embodiment, and the lighting device 1e has an improved design compared to the lighting device 1.

[0125] The second illuminator 30e is attached to the lighting fixture 10e and constitutes the lighting device 1e together with the first illuminator 20. The second illuminator 30e is formed in an elongated shape and is attached along the longitudinal direction (X-axis direction) of the lighting fixture 10e. The second illuminator 30e is provided at the center of the lighting fixture 10e in the longitudinal direction (X-axis direction). The second illuminator 30e is arranged alongside the first illuminator 20 in the lateral direction (Y-axis direction) of the lighting fixture 10e. The second illuminator 30e is arranged within the lighting fixture 10e so that the longitudinal direction of the first illuminator 20 and the longitudinal direction of the second illuminator 30e are parallel to each other in a plan view of the mounting portion 9 seen from the lighting space side. The second illuminator 30e is provided so as to protrude from a fixture penetration portion 115e formed in the fixture inclined portion 114e. More specifically, the outer casing 42e of the second lighting device 30e is disposed so as to protrude from the first through-hole 116e of the fixture through-hole 115e, and the operation unit 36 ​​of the second lighting device 30e is disposed so as to be exposed from the second through-hole 118e of the fixture through-hole 115e. The second lighting device 30e has a second light source unit 31, a control unit 34, the operation unit 36, an insulating unit 38, a housing unit 40e, a holding member 50, a battery 70, a second lighting device fixing device 80, and a hanging cord 60.

[0126] Fig. 49 is a cross-sectional view of the lighting device 1e of Fig. 45 taken along the line E-E. Fig. 50 is a perspective view of the second lighting device 30e of Fig. 42 in a third direction. Fig. 51 is an exploded perspective view of the second lighting device 30e of Fig. 42 in a third direction. Fig. 52 is a perspective view of the second lighting device 30e of Fig. 49 in a fourth direction. Fig. 53 is an exploded perspective view of the second lighting device 30e of Fig. 49 in a fourth direction. Fig. 54 is a detailed exploded perspective view of the second lighting device 30e of Fig. 51 with the outer casing 42e removed. Fig. 55 is a detailed exploded perspective view of the second lighting device 30e of Fig. 53 with the outer casing 42e removed. The configuration of the second lighting device 30 will be described in more detail with reference to Figs. 49 to 55. The third direction in Figs. 50 and 51 is a perspective view of the second lighting device 30e when the lighting device 1e is viewed from the outside to the inside of the lighting device 1e and from the illuminated space side to the mounting portion 9 side in the short-side direction (Y-axis direction) of the lighting device 1e. 52 and 53 show perspective views of the second illuminator 30e when the illuminator 1e is viewed from the inside to the outside of the illuminator 1e in the short-side direction (Y-axis direction) of the illuminator 1e and from the illumination space side to the mounting portion 9 side. In addition, in FIGS. 50 to 55, the up-down direction (Z-axis direction) on the paper for explaining the second illuminator 30e is shown opposite to the up-down direction (Z-axis direction) on the paper of the illuminator 1e in FIG.

[0127] (Second light source section 31) The second light source unit 31 is an emergency light source that emits light. As shown in FIGS. 50 and 52, the second light source unit 31 is housed in the housing unit 40e with a portion of the second translucent unit 312 exposed from the housing unit 40e. As shown in FIGS. 54 and 55, the second light source unit 31 includes a second light source substrate 310, a second light-emitting element 311, a second translucent unit 312, a holder 317e, and a second light source unit fixture 327. The dotted line Lt1 in FIG. 49 compares the position of the tip of the lens unit 313 on the illumination side with the position of the tip of the main unit 220 of the first translucent unit 22 that constitutes the first lighting device 20. The dotted line Lt2 compares the mounting position of the lens unit 313 with the mounting position of the main unit 220 of the first translucent unit 22 that constitutes the first lighting device 20. As can be seen from the dotted line Lt2, in the lighting device 1e, the lens unit 313 is disposed closer to the illumination space than the main unit 220 of the first lighting fixture 20. That is, in the direction perpendicular to the fixture bottom 110e, the lens unit 313 is disposed higher than the main unit 220, with the fixture bottom 110e and its extended surface as the reference. Furthermore, as can be seen from the dotted line Lt1, in the lighting device 1e, the distance between the tip of the lens unit 313 on the illumination side and the fixture bottom 110e and its extended surface is greater than the distance between the tip of the main unit 220 of the first lighting fixture 20 on the illumination side and the fixture bottom 110e and its extended surface. Note that, in the lighting device 1e, it is sufficient that a partition is provided between the main unit 220 of the first lighting fixture 20 and the lens unit 313 of the second lighting fixture 30, and the positional relationship between the lens unit 313 and the main unit 220 is not limited to the above-described positional relationship.

[0128] The mounting portion 316 of the second light source unit 31 is a flange portion formed around the lens portion 313, and when the second light-transmitting unit 312 is attached to the holding portion 317e, it is guided by the mounting guide 321 of the holding portion 317e and engages with the holding protrusion 320 of the holding portion 317e.

[0129] The holder 317e is for fixing the second light source substrate 310 and the lens portion 313 to a second pedestal portion 48e of the pedestal 45e, which will be described later. As shown in Figures 51 and 53, the holder 317e has a main holder portion 318e and a secondary holder portion 324e. The main holder portion 318e is formed in a plate shape, and serves as a pedestal on which the second light transmitting portion 312, which functions as a lens, is attached.

[0130] The main holder 318e has a holding protrusion 320 that locks the attached second light transmitting portion 312. The holding protrusion 320 is provided on a side wall 318a that rises from the main holder 318e, and is a protrusion that protrudes inward from the side wall 318a. The holding protrusion 320, together with the main holder 318e, holds the second light transmitting portion 312 by sandwiching the second light transmitting portion 312 from above and below (in the Z-axis direction). The second light transmitting portion 312 is placed in the lens holder 319 of the main holder 318e by the holding protrusion 320. The holder 317e forms an attachment guide 321 between the lens holder 319 and the holding protrusion 320. The attachment guide 321 is a groove formed between the lens holder 319 and the holding protrusion 320. The mounting guide 321 fits into the mounting portion 316 of the second light transmitting portion 312 when the second light transmitting portion 312 is attached to the holding portion 317e, and guides the sliding of the attached second light transmitting portion 312. A through hole 322 is formed in the main holding portion 318e. The through hole 322 is formed to be located above the mounting range of the second light emitting element 311. In the second light transmitting portion 312 attached to the main holding portion 318e, the lens portion 313 and the second light emitting element 311 face each other via the through hole 322. Therefore, light emitted from the second light emitting element 311 reaches the lens portion 313 via the through hole 322. The main holding portion 318e is further formed with main portion screw holes 323. The main portion screw holes 323 are formed in two locations on the main holding portion 318e, with the lens holding portion 319 in between. The main portion screw hole 323 is a hole through which a second light source portion fixing tool 327 for fixing the second light source portion 31 to the base portion 45e is inserted. Of the main portion screw holes 323 formed in two locations, one main portion screw hole 323 overlaps with and communicates with a sub-portion screw hole 325 formed in the holding sub portion 324e.

[0131] The secondary holding portion 324e is a plate-shaped member that locks the second light transmitting portion 312 arranged in the lens holding portion 319 so that it does not slip out of the mounting guide 321. The secondary holding portion 324e also fixes the second light transmitting portion 312 so that it does not rattle within the mounting guide 321. A secondary screw hole 325 is formed in the secondary holding portion 324e. The secondary screw hole 325 is a hole through which a second light source unit fixing tool 327 for fixing the second light source unit 31 to the base portion 45e is inserted. The secondary screw hole 325 overlaps with and communicates with a main screw hole 323 formed in the main holding portion 318e.

[0132] The second light source unit fixing device 327 is a member that fixes the second light source unit 31 to the second base portion 48e of the base portion 45e. The second light source unit fixing device 327 is, for example, a screw, a rivet, or the like. The second light source unit fixing device 327 is inserted into a main portion screw hole 323 formed in the main holding portion 318 and a sub-portion screw hole 325 formed in the sub-holding portion 324.

[0133] (Control unit 34) The screw holes 344 formed in the first case 343 of the case 342 are holes through which a control unit fixture 346 for fixing the control unit 34 to the first pedestal portion 46e of the pedestal portion 45e is inserted. That is, the control unit fixture 346 fixes the control unit 34 to the first pedestal portion 46e of the pedestal portion 44.

[0134] (Operation unit 36) The operation unit fixing device 363 fixes the operation unit 36 ​​to the first base portion 46e of the base portion 45e.

[0135] (insulation part 38) The insulating portion 38 is disposed within the second lighting device 30e between the second light source substrate 310 of the second light source unit 31 and the second light source unit mounting portion 480e of the second pedestal 48e. The insulating portion 38 electrically insulates the second light source substrate 310 of the second light source unit 31 from the second light source unit mounting portion 480e of the second pedestal 48e. The insulating portion screw hole 380 formed in the insulating portion 38 is a hole through which a second light source unit fixing device 327 for fixing the second light source unit 31 to the second light source unit mounting portion 480e of the second pedestal 48e is inserted. When the main holder portion 318e of the second light source unit 31 is fixed to the second light source unit mounting portion 480e of the second pedestal 48e, the insulating portion 38 is also fixed to the second light source unit mounting portion 480e of the pedestal 45e.

[0136] (Housing part 40e) Next, the housing 40e of the second lighting device 30e will be described with reference to FIGS. 49 to 55. The housing 40e forms the outer shell of the second lighting device 30e. The housing 40e is box-shaped and includes an outer shell 42e and a base 41e, forming a second space 45 therein. The second space 45 formed by the housing 40e accommodates the second light source 31, the control unit 34, the operation unit 36, and the insulating unit 38. As shown in FIGS. 50 and 52, the second lighting device 30e is covered by the housing 40e, which houses the entire optical system including the second light source 31. While the lens unit 313 and the outer shell fixing device 432 are exposed, neither of them protrudes beyond the outer surface 420a of the housing 40e. Therefore, the housing 40e serves as a partition between the first lighting device 20, which serves as a normal light source, and the second lighting device 30e, which serves as an emergency light source. The housing 40e has a base 41e, an outer shell 42e, and a pedestal 45e.

[0137] The base 41e is a base that serves as a foundation for accommodating the second light source unit 31. The base 41e has a base bottom 410e, base side units 414e, and a base extension 415e. The base bottom 410e is a member formed in the shape of a rectangular plate. A first pedestal unit 46e of the pedestal unit 45e is attached to the base bottom 410e.

[0138] The base side portions 414e guide the movement of the outer shell portion 42e when the outer shell portion 42e is attached to the base 41e. The base side portions 414e are side walls that rise from the edges of the base bottom portion 410e. The base side portions 414e are provided along the longitudinal direction (X-axis direction) of the elongated base bottom portion 410e. When the first pedestal portion 46e of the pedestal portion 45e is attached to the base 41e, the base side portions 414e face the pedestal outer portion 467e, and the base side portions 414e and the pedestal outer portion 467e are fixed together by fasteners such as screws.

[0139] The base extension 415e is an attachment portion for attaching the second lighting fixture 30e to the fixture bottom 110e of the lighting fixture 10e. The base extension 415e is a plate member that is continuously connected to the base bottom 410e and formed integrally with the base bottom 410e, and is provided so as to extend from the base bottom 410e. The base extension 415e is provided on the side of the base bottom 410e opposite the side on which the base side 414 is provided. The base extension 415e extends on the opposite side of the base side 414e via the pedestal 45e. When the second lighting fixture 30e is placed in the lighting fixture 10e, the base extension 415e faces and abuts against the fixture bottom 110e. A screw hole 416e is formed in the base extension 415e. The screw hole 416e is a hole through which the second lighting device fixture 80 for fixing the second lighting device 30e to the device bottom 110e of the lighting device 10e is inserted.

[0140] The outer shell 42e constitutes a part of the outer shell of the second lighting device 30e and constitutes an exterior design part of the second lighting device 30e. As shown in FIGS. 51 and 53, the outer shell 42e is formed in a substantially rectangular box shape with an opening 42a on one side. The outer shell 42e is attached to the second pedestal 48e of the pedestal 45e so as to cover a part of the base 41e. That is, the outer shell 42e is attached to the base 41e via the pedestal 45e. By attaching the outer shell 42e to the second pedestal 48e of the pedestal 45e, the outer shell 42e covers and accommodates the second light source unit 31 except for the exposed portion. Furthermore, by attaching the outer shell 42e to the second pedestal 48e of the pedestal 45e, the outer shell 42e covers and accommodates the second pedestal 48e. The outer shell portion 42e has an outer shell main portion 420e, an outer shell long side portion 427e, an outer shell short side portion 431e, and an outer shell portion fixing member 432.

[0141] The outer main portion 420e is a wall located on a surface facing the opening 42a formed in the outer portion 42e. The outer main portion 420e is a plate-like wall formed in a rectangular and elongated shape. The outer main portion 420e faces the second light source unit mounting portion 480e when the outer portion 42e is attached to the base portion 45e. The outer main portion 420e forms part of the underside of the lighting device 1e when the second illuminator 30e is attached to the lighting fixture 10e. As shown in FIGS. 50 to 53, the outer main portion 420e has a second light-transmitting member arrangement portion 421e. The outer portion 42e is smaller than the outer portion 42 of the lighting device 1 of the first embodiment, and the outer main portion 420 of the outer portion 42e does not have an operation unit arrangement portion 425 and does not have an operation through-hole 426.

[0142] The second light-transmitting member arrangement portion 421e is a portion of the outer main portion 420e that faces the second light-transmitting portion 312 arranged inside the housing portion 40e. That is, in the second lighting device 30e, the second light-transmitting portion 312 is arranged below the second light-transmitting member arrangement portion 421e. The second light-transmitting member arrangement portion 421e has a step portion 422e.

[0143] The step portion 422e is a flat wall portion formed by recessing the wall of the outer main portion 420e, and a step is formed between the step portion 422e and the outer surface 420a of the outer main portion 420e. The step portion 422e is a portion recessed inward of the outer main portion 42e. As shown in FIGS. 51 and 53, the step portion 422e is formed with a light-transmitting portion through-hole 423e and a screw hole 424e. The light-transmitting portion through-hole 423e is a through-hole formed in the step portion 422e. When the outer main portion 42e is attached to the base portion 45e, the light-transmitting portion through-hole 423e is formed in a position facing the lens portion 313, which is the second light-emitting portion. When the outer shell 42e is attached to the second pedestal 48e, the lens 313 of the second light-transmitting portion 312 disposed inside the housing 40e is exposed to the outside from the stepped portion 422e via the light-transmitting portion-through portion 423e. When the outer shell 42e is attached to the base 41e via the second pedestal 48e, a portion of the lens 313 of the second light-transmitting portion 312 disposed inside the housing 40e protrudes to the outside from the stepped portion 422e via the light-transmitting portion-through portion 423e. Screw holes 424e are formed in two locations on the stepped portion 422e, with the light-transmitting portion-through portion 423e in between. The screw holes 424e are holes through which outer shell fasteners 432 are inserted to fasten the outer shell 42e to the second pedestal 48e of the pedestal 45e.

[0144] The outer longitudinal side portions 427e constitute the side walls of the outer portion 42e. The outer longitudinal side portions 427e are formed to rise from the side edges of the outer main portion 420e along the longitudinal direction (X-axis direction) of the outer main portion 420e. The outer longitudinal side portions 427e have an outer outer portion 428e and an outer inner portion 429e. The outer outer portion 428e and the outer inner portion 429e are formed to face each other. Furthermore, when the outer portion 42e is attached to the base 41e via the second pedestal portion 48e, the outer inner portion 429e is located on the side of the base 41e where the base protrusion 415e extends from the base bottom portion 410e. Furthermore, when the outer shell portion 42e is attached to the base 41e via the second pedestal portion 48e, the outer shell inner portion 429e forms a sidewall from the outer surface 420a to a first pedestal protrusion portion 473e (described later). When the second illuminator 30e is attached to the lighting fixture 10e, the outer shell outer portion 428e forms an outer sidewall in the short-side direction (Y-axis direction) of the lighting device 1e and the second illuminator 30e. Furthermore, in the short-side direction (Y-axis direction) of the lighting device 1e, the outer shell inner portion 429e forms an inner sidewall of the second illuminator 30e relative to the outer shell outer portion 428e.

[0145] When the second illuminator 30e is attached to the lighting fixture 10e, the outer casing inside portion 429e functions as a partition wall separating the storage portion 18 of the lighting fixture 10e from the various components of the second illuminator 30e, as shown in Fig. 49. That is, when the first illuminator 20 is attached to the lighting fixture 10e, the outer casing inside portion 429e is arranged on the lighting fixture 10e so as to separate the lens portion 313, which is the second light-emitting portion, from the main portion 220, which is the first light-emitting portion. The storage portion 18, which is the first space, and the second space 45 are separated by the outer casing inside portion 429e. The outer casing inside portion 429e functions as a heat-shielding wall, reducing the effect of operating heat generated by the first illuminator 20 on the various components of the second illuminator 30e, such as the second light source unit 31, the control unit 34, and the battery 70. Furthermore, the outer casing inner portion 429e functions as a heat dissipation path for transmitting operating heat generated by the first illuminator 20 to the outside or to the lighting fixture 10e. That is, the outer casing 42e functions as a heat transfer path from the accommodation portion 18, which is the first space, to the attachment portion 9, or functions as a heat transfer path from the accommodation portion 18, which is the first space, to the lighting space illuminated by the first illuminator 20 or the second illuminator 30. The outer casing 42e also functions as a heat transfer path from the second space 45 to the attachment portion 9, or functions as a heat transfer path from the second space 45 to the lighting space illuminated by the first illuminator 20 or the second illuminator 30.

[0146] The outer short side portions 431e form the side walls of the outer portion 42e. The outer short side portions 431e are formed to rise from the side edges of the outer main portion 420e along the short side direction (Y-axis direction) of the outer main portion 420e. The outer short side portions 431e form wall portions at both ends of the outer portion 42e in the longitudinal direction (X-axis direction). When the second illuminator 30e is attached to the lighting fixture 10e, the outer short side portions 431e form part of the side walls at both ends of the second illuminator 30e in the longitudinal direction (X-axis direction).

[0147] The outer long side portions 427e and the outer short side portions 431e of the outer portion 42e are arranged to pass through the fixture inclined portion 114e when the second illuminator 30e is attached to the lighting fixture 10e.

[0148] The outer shell portion fastener 432 fastens the outer shell portion 42e to the second pedestal portion 48e of the pedestal portion 45e. The outer shell portion fastener 432 is inserted into a screw hole 424e formed in the stepped portion 422e and screwed into a screw hole 482e formed in a second light source unit attachment portion 480e of the second pedestal portion 48e that constitutes the pedestal portion 45e. The outer shell portion fastener 432 is, for example, a thumb screw. As shown in FIGS. 51 and 53, a nut 434 may be used for the outer shell portion fastener 432.

[0149] The housing 40e forms a mounting structure for the second light source 31 and the like by means of a pedestal 45e. The pedestal 45e is where the second light source 31, the holding portion 317e, the control unit 34, the operation unit 36, the insulating unit 38, and the like are mounted, and the respective components mounted on the pedestal 45e are disposed on the base 41e. The pedestal 45e has a first pedestal 46e and a second pedestal 48e. The second pedestal 48e is disposed on the first pedestal 46e, and the second pedestal 48e is mounted on the first pedestal 46e. The second pedestal 48e is also disposed on the base 41e.

[0150] The first pedestal portion 46e constitutes a structure to which the second pedestal portion 48e, the control unit 34, the operation unit 36, the holding member 50, etc. are attached. As shown in FIGS. 54 and 55, the first pedestal portion 46e is formed in the shape of a rectangular prism-like box with an opening 46e1 on one side. The first pedestal portion 46e is attached to the base 41e so as to cover the base 41e. By attaching the first pedestal portion 46e to the base 41e, the first pedestal portion 46e covers and accommodates the control unit 34 and the operation unit 36 ​​except for the exposed portions. Furthermore, by attaching the first pedestal portion 46e to the base 41e, the first pedestal portion 46e covers and accommodates the battery 70 and the holding member 50 that holds the battery 70. The first pedestal portion 46e has a pedestal main portion 460e, a pedestal long side portion 466e, a first pedestal protruding portion 473e, and a pedestal short side portion 475e.

[0151] The base main portion 460e is a wall that constitutes part of the housing portion 18 that houses the operating unit 36, the control unit 34, the holding member 50, the battery 70, etc. The base main portion 460e is a plate-like wall located on the surface facing the opening 46e1 formed in the first base portion 46e. The base main portion 460e is also a rectangular, elongated plate-like wall. When the first base portion 46e is attached to the base 41e, the base main portion 460e faces the base bottom portion 410e. When the second lighting device 30 is attached to the lighting fixture 10, the base main portion 460e faces the fixture inclined portion 114e and the fixture side edge portion 117e.

[0152] The base main part 460e is formed with a main part mounting opening 488e and a main part electric wire insertion hole 490e. The main part mounting opening 488e is a through hole formed in the short direction (Y-axis direction) from the inner side of the base main part 460e. Two main part mounting openings 488e are formed along the longitudinal direction (X-axis direction) of the base main part 460e. The base fixing part 483e of the second base part 48e is inserted into and fixed in the main part mounting opening 488e. The main part electric wire insertion hole 490e is a through hole formed along the longitudinal direction of the base main part 460e. Electric wires are inserted and arranged in the main part electric wire insertion hole 490e. The base main part 460e has an operation unit attachment part 461e and a control unit attachment part 464e.

[0153] The operation unit attachment portion 461e is a portion of the first base portion 46e to which the operation unit 36 ​​is attached. The operation unit attachment portion 461e faces the operation unit 36 ​​arranged inside the first base portion 46e. That is, in the second lighting device 30e, the operation unit 36 ​​is arranged below the operation unit attachment portion 461e of the first base portion 46e. An operation unit through-hole 462e and a screw hole 463e are formed in the operation unit attachment portion 461e.

[0154] The operation unit through-hole 462e is a through-hole formed in the operation unit mounting portion 461e. When the operation unit 36 ​​is mounted inside the first base portion 46e, the operation surface portion 360 of the operation unit 36 ​​arranged inside the first base portion 46e is exposed from the wall surface of the operation unit mounting portion 461e through the operation unit through-hole 462e. When the second lighting device 30e is mounted to the lighting fixture 10e, the operation unit through-hole 462e and the second through-hole 118e communicate with each other. The operation surface portion 360, including the operation buttons 361 and indicator lights 362 of the operation unit 36, is exposed to the outside of the fixture main body 11e through the operation unit through-hole 462e and the second through-hole 118e. With the operation surface portion 360 exposed on the underside of the lighting device 1, an operator can operate the operation buttons 361 of the operation unit 36 ​​and can recognize whether the indicator lights 362 are on or off. An operation unit fixing device 363 such as a screw or a rivet is attached to the screw hole 463e to fix the operation unit 36 ​​to the operation unit mounting portion 461e. The operation unit 36 ​​is attached to the operation unit mounting portion 461e from the inside of the first pedestal portion 46e by the operation unit fixing device 363.

[0155] The control unit attachment portion 464e is a portion of the first base portion 46e to which the control unit 34 is attached. The control unit attachment portion 464e faces the first case 343 of the control unit 34 arranged inside the first base portion 46e. That is, in the second lighting device 30e, the control unit 34 is arranged below the control unit attachment portion 464e of the first base portion 46e. A screw hole 465e is formed in the control unit attachment portion 464e.

[0156] A control unit fixing device 346, such as a screw or a rivet, is fitted into the screw hole 465e to fix the control unit 34 to the control unit mounting portion 464e. The control unit 34 is attached to the control unit mounting portion 464e from the inside of the first pedestal portion 46e by the control unit fixing device 346.

[0157] The base longitudinal side portion 466e is a wall that constitutes part of the housing portion 18 that houses the operating unit 36, the control unit 34, the holding member 50, the battery 70, etc. As shown in FIGS. 54 and 55, the base longitudinal side portion 466e constitutes a side wall of the first base portion 46e. The base longitudinal side portion 466e is formed to rise from the side edge of the base main portion 460e along the longitudinal direction (X-axis direction) of the base main portion 460e. The base longitudinal side portion 466e has a base outer portion 467e and a base inner portion 470e.

[0158] The base outer portion 467e and the base inner portion 470e are formed to face each other. When the second illuminator 30e is attached to the lighting fixture 10e, the base outer portion 467e forms part of the outer side wall of the lighting device 1e and the second illuminator 30e in the short-side direction (Y-axis direction), as shown in Fig. 46. The base inner portion 470e forms the inner side wall of the second illuminator 30e relative to the base outer portion 467e in the short-side direction (Y-axis direction) of the lighting device 1e. When the second illuminator 30e is attached to the lighting fixture 10e, the base inner portion 470e is arranged along the fixture side portion 111e of the lighting fixture 10e.

[0159] As shown in Figures 54 and 55, the base outer part 467e is formed with a holding member fixing part 468e and an attachment hole 469e. The holding member fixing part 468e is a bridge-shaped cut-and-raised part. That is, the holding member fixing part 468e is a plate material cut and raised from the base outer part 467e, and both ends are formed continuous with the base outer part 467e. The fixing part 51 of the holding member 50 is inserted into the holding member fixing part 468e. The attachment hole 469e is a hole through which a holding member fixture 54 for fixing the holding member 50 to the base outer part 467e is inserted.

[0160] The base inner portion 470e is formed with a battery attachment / detachment portion 471e, a side wire insertion hole 472e, and a side mounting opening 489e. The battery attachment / detachment portion 471e is a through-hole and is an opening used when inserting or removing the battery 70 into or from the first base portion 46e. The battery attachment / detachment portion 471e is formed at a position within the first base portion 46e where the battery 70 is to be disposed. When the outer case portion 42e of the lighting device 1e is attached to the second base portion 48e of the base portion 45e, at least a portion of the battery attachment / detachment portion 471e is covered by the outer case portion 42e. Note that the battery attachment / detachment portion 471e may be formed contiguous to the base main portion 460e together with the base inner portion 470e. The side wire insertion hole 472e is a through-hole and serves as a wiring path between the first lighting fixture 20 and the second lighting fixture 30e. The side mounting opening 489e is formed along the longitudinal direction (X-axis direction) of the base inner portion 470e, starting from the main mounting opening 488e.

[0161] The first base extension 473e is a bent piece formed at an end of the base inner portion 470e. The first base extension 473e is formed at the end of the base main portion 460e on the opposite side of the base inner portion 470e. The first base extension 473e, together with the base extension 415e, is an attachment portion for attaching the second lighting fixture 30e to the fixture bottom 110e of the lighting fixture 10e. When attaching the second lighting fixture 30e to the fixture bottom 110e of the lighting fixture 10e, the first base extension 473e faces the base extension 415e and the fixture bottom 110e and abuts against them. That is, when the second lighting device 30e is attached to the lighting fixture 10e, the first base extension 473e is sandwiched between the base extension 415e and the fixture bottom 110e. A screw hole 474e is formed in the first base extension 473e. The screw hole 474e is a hole through which the second lighting device fixture 80 for fixing the second lighting device 30e to the fixture bottom 110e is inserted.

[0162] The base short side portions 475e are walls that form part of the housing portion 18 that houses the operating unit 36, the control unit 34, the holding member 50, the battery 70, etc. As shown in FIGS. 54 and 55, the base short side portions 475e form side walls of the first base portion 46e. The base short side portions 475e are formed to rise from the side edges of the base main portion 460e along the short direction (Y-axis direction) of the base main portion 460e. The base short side portions 475e form wall portions at both ends of the first base portion 46e in the longitudinal direction (X-axis direction). When the second lighting device 30e is attached to the lighting fixture 10e, the base short side portions 475e form part of the side walls at both ends of the second lighting device 30e in the longitudinal direction (X-axis direction).

[0163] The second pedestal 48e is a pedestal that attaches the second light source 31 to the first pedestal 46e. The second pedestal 48e is attached to a pedestal main portion 460e of the first pedestal 46e. The second pedestal 48e has a second light source attachment portion 480e, a pedestal fixing portion 483e, a connecting portion 485e, a pedestal side portion 486e, and a second pedestal fixing member 487e.

[0164] The second light source unit mounting portion 480e is a portion formed in a plate shape. The second light source unit 31 and the insulating portion 38 are placed and mounted on the second light source unit mounting portion 480e. The outer casing 42e is also mounted on the second light source unit mounting portion 480e. The second light source unit mounting portion 480e receives operating heat generated by the second light source unit 31 and dissipates the received heat. When the second base portion 48e is mounted on the first base portion 46e, the second light source unit mounting portion 480e faces the base main portion 460e of the first base portion 46e. A screw hole 481e and a screw hole 482e are formed in the second light source unit mounting portion 480e. The screw holes 481e are formed in two locations corresponding to the main portion screw holes 323 of the second light source unit 31. The second light source unit fixing members 327 for fixing the second light source unit 31 to the second light source unit mounting member 480e are attached to the screw holes 481e. The screw holes 482e are formed in two locations corresponding to the screw holes 424e of the outer casing 42e. The outer casing fixing members 432 for fixing the outer casing 42e to the second light source unit mounting member 480e are attached to the screw holes 482e.

[0165] The base fixing portion 483e is a bent piece used to attach the second base portion 48e to the first base portion 46e and to fix the second base portion 48e to the first base portion 46e. The base fixing portion 483e is formed at the longitudinal end of the second base portion 48e, and is formed in two locations with the second light source unit attachment portion 480e in between. When attaching the second base portion 48e to the first base portion 46e, the base fixing portion 483e is inserted into a main portion attachment opening 488e formed in the first base portion 46e and abuts against the base main portion 460e of the first base portion 46e from the inside of the first base portion 46e. A screw hole 484e is formed in the base fixing portion 483e. A second base fixing member 487e such as a screw or rivet is fitted into the screw hole 484e to fix the second base portion 48e to the first base portion 46e.

[0166] The connecting portion 485e is a plate-shaped portion that connects the second light source unit mounting portion 480e and the base fixing portion 483e to each other. The connecting portion 485e is formed at the end portion in the longitudinal direction (X-axis direction) of the second light source unit mounting portion 480e, i.e., at the short side portion. The connecting portion 485 positions the second light source unit mounting portion 480e above the base main portion 460e of the first base portion 46e. The connecting portion 485e functions as a heat dissipation path that transfers operating heat generated by the second light source unit 31 to the base portion 41e and the lighting fixture 10e.

[0167] The base side portions 486 are bent pieces provided on the longitudinal sides of the second light source unit attachment portion 480e. The base side portions 486 restrict elastic deformation of the holding member 50 when the outer shell portion 42e is attached to the second base portion 48e.

[0168] The second pedestal portion fastener 487e is, for example, a screw or a rivet. The second pedestal portion fastener 487e is used to attach the second pedestal portion 48e to the first pedestal portion 46e. The second pedestal portion fastener 487e is inserted into a screw hole 484e formed in a pedestal fastening portion 483e that constitutes the second pedestal portion 48e, and fastens the pedestal fastening portion 483e of the second pedestal portion 48e to the pedestal main portion 460e of the first pedestal portion 46e.

[0169] (holding member 50) Fig. 56 is a cross-sectional view taken along line FF of lighting device 1e in Fig. 45. Fig. 57 is a schematic cross-sectional view showing the attachment and detachment of battery 70 in Fig. 56. Next, with reference to Figs. 54 to 57, the holding member 50 will be described. The holding member 50 is an elastic member such as a leaf spring, and holds battery 70 arranged in first pedestal portion 46e of housing portion 40e. The holding member 50 has a fixing portion 51, a holding portion 53, and a holding member fixture 54.

[0170] The fixing portion 51 is a flat plate-shaped plate portion. As shown in FIGS. 54 and 55 , the fixing portion 51 is inserted into a holding member fixing portion 468e formed on the base outer portion 467e, thereby engaging with the base outer portion 467e and being attached to the base outer portion 467e. When the fixing portion 51 is inserted into the holding member fixing portion 468e formed on the base outer portion 467e, the fixing portion 51 abuts against the base outer portion 467e. A fixing hole 52 is formed in the fixing portion 51. A holding member fixing device 54 for fixing the holding member 50 to the base outer portion 467e is attached to the fixing hole 52. When the second illuminator 30e is attached to the lighting fixture 10e, the fixing portion 51 is disposed so as to be substantially perpendicular to the base bottom portion 410e, as shown in FIG.

[0171] The holding portion 53 is formed integrally with the fixed portion 51 and is a plate-like portion rising from the fixed portion 51. When the plate surface of the fixed portion 51 is assumed to be a plate-like portion extending vertically, the holding portion 53 is a plate-like portion extending horizontally. When the holding member 50 is attached to the pedestal outer portion 467e, the holding portion 53 faces the base bottom portion 410e, as shown in FIG. 56 . The holding portion 53 is inclined with respect to the plate surface of the fixed portion 51 so as to approach the fixed portion 51, and it is desirable that the angle between the plate surface of the holding portion 53 and the plate surface of the fixed portion 51 be 90 degrees or less. When the holding member 50 is attached to the pedestal outer portion 467e, the holding portion 53 is inclined so as to approach the base bottom portion 410e.

[0172] The holding portion 53 has spring properties and is elastically deformable. As shown in FIG. 56, when the second lighting device 30e is attached to the lighting fixture 10e, the holding portion 53 is disposed so as to extend in the left-right direction (Y-axis direction) of the lighting device 1. Also, as shown in FIG. 56, the holding portion 53 holds the battery 70. As shown in FIG. 57, when the outer casing 42e is detached from the base 45e, the holding portion 53 is allowed to elastically deform, allowing the battery 70 to be attached or detached. Note that, as shown in FIG. 53, when the outer casing 42e is detached from the second base 48e, a battery attachment / detachment portion 471e formed on the first base 46e is exposed. By removing the first lighting device 20 and the outer casing 42e from the lighting device 10e, the worker can expose the battery attachment / detachment portion 471e to the housing 18, and the worker can insert or remove the battery 70 into or from the first base 46e via the battery attachment / detachment portion 471e. For this reason, it is desirable that the device side portion 111e be formed with a through-hole that communicates with the battery attachment / detachment portion 471e when the second lighting device 30e is attached to the lighting device 10e.

[0173] The holding member fixture 54 is a member that fixes the holding member 50 to the base outer part 467e. The holding member fixture 54 is, for example, a screw, a rivet, etc. The holding member fixture 54 is inserted through the fixing hole 52 formed in the fixing part 51 and the attachment hole 469e formed in the base outer part 467e.

[0174] (Battery 70) The battery 70 is supported from below by the holding portion 53 of the holding member 50, restricting downward movement of the battery 70. When the first lighting device 20 is removed from the housing 18 and the outer casing 42e is removed from the base 45e, an operator can remove the battery 70 to the side by elastically deforming the holding member 50, as shown in Fig. 57. In Fig. 57, arrow S indicates the direction in which the battery 70, outer casing 42e, or first lighting device 20 is attached to the lighting device 10e, and arrow R indicates the direction in which the battery 70, outer casing 42e, or first lighting device 20 is removed from the lighting device 10e.

[0175] <Action and effect of lighting device 1, etc.> The following describes the effects and advantages of lighting device 1, lighting device 1b, lighting device 1c, lighting device 1d, and lighting device 1e. Note that although the following description will focus on the effects and advantages of lighting device 1, these effects and advantages also apply to lighting device 1b, lighting device 1c, lighting device 1d, and lighting device 1e unless otherwise specified.

[0176] As described above, when the first illuminator 20 is attached to the lighting fixture 10, the outer casing 42 is disposed in the lighting fixture 10 so as to separate the lens portion 313, which is the second light-emitting portion, from the main portion 220, which is the first light-emitting portion. Therefore, the first illuminator 20 and the second illuminator 30 can be disposed side by side in the lighting fixture 10. Since the first illuminator 20 and the second illuminator 30 can be disposed side by side in the lighting fixture 10, the first illuminator 20 and the second illuminator 30 can be disposed side by side in the short direction (Y-axis direction) of the lighting device 1 in an elongated lighting device 1. As a result, when designing and manufacturing the lighting device 1, it is not necessary to design and manufacture the lighting device 1 according to length dimensions that differ from those of general lighting devices and general regular lighting devices, and it is possible to provide a lighting device 1 equipped with an emergency lighting fixture that is economical and easy to install. Similarly, in the lighting device 1e, when the first illuminator 20 is attached to the lighting fixture 10e, the outer casing 42e is disposed in the lighting fixture 10e such that it separates the lens portion 313, which is the second light-emitting portion, from the main portion 220, which is the first light-emitting portion. Therefore, the first illuminator 20 and the second illuminator 30e can be disposed side by side in the lighting fixture 10e. Since the first illuminator 20 and the second illuminator 30e can be disposed side by side in the lighting fixture 10e, the lighting device 1e can have the first illuminator 20 and the second illuminator 30e disposed side by side in the short-side direction (Y-axis direction) of the lighting device 1e in a long lighting device 1e. As a result, the lighting device 1e is not required to be designed and manufactured according to length dimensions different from those of general lighting devices and general regular lighting devices, and a lighting device 1e equipped with an emergency lighting fixture that is economical and easy to install can be provided.

[0177] Furthermore, the lighting fixture 10 is formed in an elongated shape, and the first lighting fixture 20 and the second lighting fixture 30 are arranged side by side in the short side direction (Y-axis direction) of the lighting fixture 10. As a result, when designing and manufacturing the lighting device 1, it is not necessary to design and manufacture according to length dimensions that differ from those of general lighting devices and general lighting fixtures in regular use, and it is possible to provide a lighting device 1 equipped with an emergency lighting fixture that is economical and easy to install.

[0178] Furthermore, the second lighting fixture 30 is disposed outside the storage section 18. Therefore, the worker does not need to remove the second lighting fixture 30 when attaching or detaching the first lighting fixture 20 to or from the lighting fixture 10. As a result, the worker can easily attach or detach the first lighting fixture 20 that is used regularly, and can easily perform maintenance on the lighting device 1.

[0179] Furthermore, the second lighting fixture 30 is attached to the lighting fixture 10. By attaching the second lighting fixture 30 to the lighting fixture 10, a worker can remove the second lighting fixture 30 from the lighting fixture 10 or attach the second lighting fixture 30 to the lighting fixture 10. This allows a worker to repair or replace the second lighting fixture 30, making maintenance of the lighting device 1 easier.

[0180] Furthermore, the outer casing 42 is formed using a light-blocking material. Therefore, the lighting device 1 can prevent unnecessary light from leaking from the second illuminator 30. Similarly, the outer casing 42e is formed using a light-blocking material. Therefore, the lighting device 1e can prevent unnecessary light from leaking from the second illuminator 30e.

[0181] Furthermore, the outer casing 42 is formed using a flame-retardant or non-flammable material. Therefore, the lighting device 1 can prevent problems caused by heat generated by the first lighting device 20 from affecting the second lighting device 30, and can also prevent problems caused by heat generated by the second lighting device 30 from affecting the first lighting device 20. Similarly, the outer casing 42e is formed using a flame-retardant or non-flammable material. Therefore, the lighting device 1e can prevent problems caused by heat generated by the first lighting device 20 from affecting the second lighting device 30e, and can also prevent problems caused by heat generated by the second lighting device 30e from affecting the first lighting device 20.

[0182] Furthermore, the outer casing 42 is detachably attached to the second lighting device 30. This makes it easier for workers to perform maintenance on the second lighting device 30. Similarly, the outer casing 42e is detachably attached to the second lighting device 30e. This makes it easier for workers to perform maintenance on the second lighting device 30e.

[0183] Furthermore, the maximum dimension of the second luminaire 30 is smaller than the maximum dimension of the first luminaire 20. Furthermore, the first direction is the longitudinal direction of the luminaire 10, and the second direction is the lateral direction of the luminaire 10. Therefore, the lighting device 1 can ensure the amount of light to illuminate the lighting space when in normal use. Similarly, the maximum dimension of the second luminaire 30e is smaller than the maximum dimension of the first luminaire 20. Furthermore, the first direction is the longitudinal direction of the luminaire 10e, and the second direction is the lateral direction of the luminaire 10e. Therefore, the lighting device 1e can ensure the amount of light to illuminate the lighting space when in normal use.

[0184] Furthermore, the first lighting fixture 20 functions as a normal lighting fixture, and the second lighting fixture 30 functions as an emergency lighting fixture. Therefore, the lighting device 1 can provide lighting during normal use when power is supplied from a commercial power source or the like, and can also provide lighting in an emergency when power is not supplied from outside the lighting device 1 due to a power outage or the like. Similarly, the first lighting fixture 20 functions as a normal lighting fixture, and the second lighting fixture 30e functions as an emergency lighting fixture. Therefore, the lighting device 1e can provide lighting during normal use when power is supplied from a commercial power source or the like, and can also provide lighting in an emergency when power is not supplied from outside the lighting device 1e due to a power outage or the like.

[0185] Furthermore, in the lighting device 1, the housing 18, which is the first space, and the second space 45 are separated by the outer casing 42. In the lighting device 1, the air in the first space, whose temperature rises due to the heat generated by the operation of the first light source unit 21, does not move to the second space 45 because the air is separated by the outer casing 42. Therefore, in the lighting device 1, thermal stress is not applied to the components of the second lighting fixture 30. As a result, in the lighting device 1, the emergency lighting fixture is less susceptible to the heat generated by the operation of the normal lighting fixture. Similarly, in the lighting device 1e, the housing 18, which is the first space, and the second space 45 are separated by the outer casing 42e. In the lighting device 1e, the air in the first space, whose temperature rises due to the heat generated by the operation of the first light source unit 21, does not move to the second space 45 because the air is separated by the outer casing 42e. Therefore, in the lighting device 1e, thermal stress is not applied to the components of the second lighting fixture 30e. As a result, in the lighting device 1e, the emergency lighting fixture is less susceptible to the influence of the operating heat of the regular lighting fixture.

[0186] Furthermore, the outer casing 42 of the lighting device 1 is formed using a light-shielding, heat-conductive material. Therefore, the lighting device 1 can transfer heat from the air in the first space, whose temperature rises due to the operating heat of the first light source unit 21, through the outer casing 42 and dissipate it to the outside of the lighting device 1. Therefore, the lighting device 1 does not apply thermal stress to the components of the second lighting fixture 30. As a result, the lighting device 1 is less susceptible to the operating heat of the emergency lighting fixture. Similarly, the lighting device 1e has an outer casing 42e formed using a light-shielding, heat-conductive material. Therefore, the lighting device 1e can transfer heat from the air in the first space, whose temperature rises due to the operating heat of the first light source unit 21, through the outer casing 42e and dissipate it to the outside of the lighting device 1e. Therefore, the lighting device 1e does not apply thermal stress to the components of the second lighting fixture 30e. As a result, in the lighting device 1, the emergency lighting fixture is less susceptible to the influence of the operating heat of the regular lighting fixture.

[0187] Furthermore, the outer casing 42 functions as a heat transfer path from the first space to the attachment portion 9, or as a heat transfer path from the first space to the illuminated space illuminated by the first illuminator 20 or the second illuminator 30. Therefore, in the lighting device 1, thermal stress is unlikely to be applied to components of the second illuminator 30. As a result, in the lighting device 1, the emergency lighting device is unlikely to be affected by the operating heat of the regular lighting device. Similarly, the outer casing 42e functions as a heat transfer path from the first space to the attachment portion 9, or as a heat transfer path from the first space to the illuminated space illuminated by the first illuminator 20 or the second illuminator 30. Therefore, in the lighting device 1e, thermal stress is unlikely to be applied to components of the second illuminator 30e. As a result, in the lighting device 1, the emergency lighting device is unlikely to be affected by the operating heat of the regular lighting device.

[0188] Furthermore, the outer casing 42 functions as a heat transfer path from the second space 45 to the mounting portion 9, or as a heat transfer path from the second space 45 to the illuminated space illuminated by the first illuminator 20 or the second illuminator 30. Therefore, in the lighting device 1, heat is easily dissipated from the second space 45 to the outside, and thermal stress is unlikely to be applied to the components of the second illuminator 30. As a result, in the lighting device 1, the emergency lighting fixture is less susceptible to the operating heat of the regular lighting fixture. Similarly, the outer casing 42e functions as a heat transfer path from the second space 45 to the mounting portion 9, or as a heat transfer path from the second space 45 to the illuminated space illuminated by the first illuminator 20 or the second illuminator 30e. Therefore, in the lighting device 1e, heat is easily dissipated from the second space 45 to the outside, and thermal stress is unlikely to be applied to the components of the second illuminator 30e. As a result, in the lighting device 1e, the emergency lighting fixture is less susceptible to the influence of the operating heat of the regular lighting fixture.

[0189] Furthermore, when the battery 70 is placed inside the housing 40, the lighting device 1 abuts against the inner surface of the housing 40 and is held inside the second space 45 by the holding member 50 attached to the housing 40. When the outer housing 42 is attached to the base 44, the holding member 50 has a narrower range of movement than when the outer housing 42 is not attached to the base 44. Therefore, when the outer housing 42 is attached to the base 44, the battery 70 is securely held by the holding member 50. As a result, the lighting device 1 can securely hold the battery 70, which serves as an emergency power source, despite its simple configuration.

[0190] Furthermore, when the outer shell 42 is not attached to the base 44, the holding member 50 elastically deforms within a movable range that allows the battery 70 to be attached and detached. When the outer shell 42 is detached from the base 41, the holding portion 53 is allowed to elastically deform, so that the worker can easily attach and detach the battery 70 to and from the lighting device 1.

[0191] Furthermore, outer shell 42 is formed in a box shape, and has a light-transmitting portion through-hole 423 formed in a position facing lens portion 313, which is the second light-emitting portion. Therefore, outer shell 42 can expose the second light-emitting portion housed therein and can form the outer shell of second lighting device 30.

[0192] Furthermore, the base 44 has an opening 44a formed at a position where the battery 70 is to be placed. When the outer casing 42 is attached to the base 44, at least a portion of the opening 44a is covered by the outer casing 42. By removing the outer casing 42 that covers the opening 44a, the opening 44a can be exposed, and an operator can easily attach / detach the battery 70 to / from the lighting device 1 through the opening 44a. Similarly, the base 45e has a battery attachment / detachment portion 471e formed at a position where the battery 70 is to be placed. When the outer casing 42e is attached to the base 45e, at least a portion of the battery attachment / detachment portion 471e is covered by the outer casing 42e. By removing the outer casing 42e that covers the battery attachment / detachment portion 471e, the battery attachment / detachment portion 471e can be exposed, and an operator can easily attach / detach the battery 70 to / from the lighting device 1 through the battery attachment / detachment portion 471e.

[0193] Although the embodiments and modifications of the present invention have been described above, these embodiments and modifications may be combined and implemented. Alternatively, one of these embodiments and modifications may be implemented partially. Alternatively, these embodiments and modifications may be implemented partially in combination. Note that the present invention is not limited to these embodiments and modifications, and various modifications are possible as needed. [Explanation of symbols]

[0194] 1 lighting device, 1b lighting device, 1c lighting device, 1d lighting device, 1e lighting device, 9 attached part, 10 lighting fixture, 10b lighting fixture, 10c lighting fixture, 10d lighting fixture, 10e lighting fixture, 11 fixture body part, 11b fixture body part, 11c fixture body part, 11d fixture body part, 11e fixture body part, 12 Fixture end, 12b Fixture end, 12c Fixture end, 12d Fixture end, 12e Fixture end, 13 Fixture side connector, 14 Fixture side terminal block, 15 Fixture side fixture, 16 Fixture side power line, 18 Accommodation section, 20 First lighting fixture, 21 First light source section, 22 First transparent section, 23 Power supply section, 24 Support section, 30 Second lighting fixture, 30a Second lighting fixture, 30e Second lighting fixture, 31 Second light source section, 34 Control unit, 36 Operation unit, 38 Insulation unit, 40 Housing unit, 40a Housing unit, 40e Housing unit, 41 Base, 41e Base, 42 Outer shell unit, 42a Opening, 42e Outer shell unit, 44 Base unit, 44a Opening, 45 Second space, 45e Base unit, 46e First base unit, 46e1 Opening, 48e Second base unit, 50 Holding member, 51 Fixing portion, 52 Fixing hole, 53 Holding portion, 53a Holding portion, 53b Side wall fixing portion, 53b1 Side wall fixing portion, 53c Holding bent portion, 53c1 First inclined portion, 53c2 Second inclined portion, 54 Holding member fixing device, 60 Hanging cord, 70 Battery, 70a Battery, 80 Second lighting fixture fixing device, 110 Fixture bottom, 110e bottom of appliance, 111 appliance side, 111d appliance side, 111e appliance side, 112 wire passage hole, 113 screw hole, 114 appliance inclined portion, 114b appliance inclined portion, 114d appliance inclined portion, 114e appliance inclined portion, 115 appliance penetration portion, 115b appliance penetration portion, 115d appliance penetration portion, 115e appliance penetration portion, 116e first penetration portion, 117 appliance side edge portion, 117b appliance side edge portion, 117c appliance side edge portion, 117d appliance side edge portion, 117e appliance side edge portion, 118e second penetration portion, 120 end plate, 120b end plate, 120c end plate, 121 knockout portion, 121c knockout portion, 160 electric wire portion, 161 connector, 210 First light source substrate, 211, first light source element, 220, main portion, 221, mounting portion, 222, first incident portion, 223, first emission portion, 226, cover portion, 230, case, 240, base portion, 241, standing portion, 242, power supply unit arrangement portion, 310, second light source substrate, 311, second light emitting element, 312Second light transmitting portion, 313 lens portion, 314 second incident portion, 315 second emitting portion, 316 mounting portion, 317 holding portion, 317e holding portion, 318 main holding portion, 318a side wall, 318e main holding portion, 319 lens holding portion, 320 holding protrusion, 321 mounting guide, 322 through hole, 323 main portion screw hole, 324 sub holding portion, 324e sub holding portion, 325 sub portion screw hole, 326 connection portion, 327 second light source portion fixing device, 340 control circuit board, 341 control circuit component, 342 case, 343 first case, 343a case bottom wall, 343b case side wall, 344 screw hole, 345 second case, 346 control portion fixing device, 360 operation surface portion, 361 operation button, 362 Indicator light, 363, operation unit fixing device, 380, insulating unit screw hole, 410, base bottom, 410e, base bottom, 411, holding member fixing portion, 412, screw hole, 413, mounting hole, 414, base side, 414e, base side, 415, base protrusion, 415e, base protrusion, 416, screw hole, 416e, screw hole, 420, outer casing main portion, 420a, outer surface, 420e, outer casing main portion, 421, second light-transmitting member arrangement portion, 421e, second light-transmitting member arrangement portion, 422, step portion, 422e, step portion, 423, light-transmitting unit through portion, 423e, light-transmitting unit through portion, 424, screw hole, 424e, screw hole, 425, operation unit arrangement portion, 426, operation through portion, 427 Outer casing long side portion, 427e Outer casing long side portion, 428 Outer casing outer portion, 428e Outer casing outer portion, 429 Outer casing inner portion, 429e Outer casing inner portion, 430 Notch portion, 431 Outer casing short side portion, 431e Outer casing short side portion, 432 Outer casing fixing device, 434 Nut, 440 Second light source unit mounting portion, 441 Screw hole, 442 Screw hole, 443 Operation unit mounting portion, 444 Screw hole, 445 Control unit mounting portion, 446 Screw hole, 447 Connection portion, 460e Base main portion, 461e Operation unit mounting portion, 462e Operation unit through portion, 463e Screw hole, 464e Control unit mounting portion, 465e Screw hole, 466e Base long side portion, 467e Base outer part, 468e, holding member fixing part, 469e, mounting hole, 470e, base inner part, 471e, battery attachment / detachment part, 472e, side electric wire insertion hole, 473e, first base extension part, 474e, screw hole, 475e, base short side part, 480e, second light source part attachment part, 481e, screw hole, 482e, screw hole, 483e, base fixing part, 484e, screw hole, 485, connecting part, 485eConnecting portion, 486 base side portion, 486e base side portion, 487e second base portion fixing device, 488e main portion mounting opening, 489e side portion mounting opening, 490e main portion electric wire insertion hole.

Claims

[Claim 1] a first lighting fixture having an elongated shape; a second lighting device arranged next to the first lighting device in a short-side direction, the second lighting device having an emergency light source unit, a lens unit covering the emergency light source unit, and an outer casing unit accommodating the emergency light source unit and the lens unit, the length of the second lighting device in the longitudinal direction of the first lighting device being shorter than the length of the first lighting device; Equipped with The outer shell portion is a main outer portion having a light transmitting portion through which the lens portion is exposed; an outer shell inner portion extending along the longitudinal direction; an outer short side portion disposed opposite the lens portion in the longitudinal direction and separating the first lighting device from the lens portion; and The outer shell inner part is In a cross section of the first lighting fixture and the second lighting fixture perpendicular to the longitudinal direction, a lighting device is arranged between the first lighting fixture and the lens portion in the short direction, which is perpendicular to the direction in which the outer casing inner portion extends, and separates the first lighting fixture and the lens portion.

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