Illumination device

Abstract

To provide a luminaire which can prevent electric components from being congested, and which can reduce interference of the electric components and wiring.SOLUTION: A luminaire X includes: a long luminaire body 1; a common use lighting fixture 1 having a common use power source unit 12; and an emergency lighting fixture 5 having an emergency power source unit 52. A luminaire body 3 includes a through-hole 301b for inserting input wiring for receiving power from commercial power in the center between a first end part A which is one end in the longer direction and a second end part B which is the other end in the longer direction. The common use power source unit 12 is disposed between the first end part A and the through-hole 301b, and the emergency lighting fixture 5 is disposed between the second end part B and the through-hole 301b and adjacent to the shorter direction of the luminaire body 3.SELECTED DRAWING: Figure 12

Description

Technical Field

[0001] The present invention relates to a lighting device attached to an installation surface such as a ceiling.

Background Art

[0002] As a lighting device, an emergency lighting device has been proposed that includes a long main body recess (110) for accommodating a light source unit (10), and an emergency lighting fixture (200) is arranged adjacent in the short direction at the central part in the longitudinal direction of the main body recess (110) (for example, Patent Document 1). In this emergency lighting device, a power supply unit (16a) and a terminal block (130) are provided near an insertion hole (111a) for commercial power wiring.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above emergency lighting device, when arranging the emergency lighting fixture (200), electrical components such as wiring, a power supply unit (16a), an emergency lighting device main body (231), and a terminal block (130) are likely to be crowded, and there is a concern about interference between electrical components and wiring. The present invention has been made in view of such circumstances, and an object thereof is to provide a lighting device capable of preventing interference between electrical components and wiring.

Means for Solving the Problems

[0005] In order to solve the above problems, the lighting device according to the present invention includes a long-shaped fixture body, a normal lighting fixture having a normal power supply unit, and an emergency lighting fixture having an emergency power supply unit. The fixture body has a through hole for inserting an input wiring for receiving commercial power at the center between a first end which is one end in the longitudinal direction and a second end which is the other end in the longitudinal direction. The normal power supply unit is arranged between the first end and the through hole, and the emergency lighting fixture is arranged between the second end and the through hole and adjacent to the fixture body in the lateral direction.

Effect of the Invention

[0006] According to the present invention, it is possible to prevent the concentration of electrical components and reduce the interference between electrical components and wiring.

Brief Description of the Drawings

[0007]

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Embodiments for Carrying Out the Invention

[0008] <Summary> A first lighting device according to an aspect of the embodiment includes an elongated fixture body, a common lighting fixture having a common power supply unit, and an emergency lighting fixture having an emergency power supply unit. The fixture body has a through hole for inserting an input wiring for receiving power from commercial power at the center between a first end that is one end in the longitudinal direction and a second end that is the other end in the longitudinal direction. The common power supply unit is disposed between the first end and the through hole, and the emergency lighting fixture is disposed between the second end and the through hole and adjacent to the fixture body in the short-side direction. Thereby, by shifting the positions of the emergency power supply unit, the emergency power supply unit, and the through hole in the longitudinal direction and the short-side direction, it is possible to suppress concentration, and thus it is possible to prevent interference between electrical components and wirings.

[0009] A second lighting device according to another aspect of the embodiment is the first lighting device, wherein the fixture body includes a terminal block connected to the input wiring, the common power supply unit is configured to be connectable to the terminal block via a first wiring, the emergency power supply unit is configured to be connectable to the terminal block via a second wiring, and the terminal block is disposed between a virtual plane passing through an end portion on the through-hole side in the common power supply unit and orthogonal to the longitudinal direction and a virtual plane passing through an end portion on the through-hole side in the emergency power supply unit and orthogonal to the longitudinal direction. Thereby, the first wiring and the second wiring can be shortened as compared with the case where the terminal block is not disposed between the virtual plane on the through-hole side of the common power supply unit and the virtual plane on the through-hole side of the emergency power supply unit.

[0010] A third lighting device according to another aspect of the embodiment is the second lighting device, wherein the terminal block has a second output connection port for connecting to the second wiring, and the emergency power supply unit has a second input connection port for connecting to the second wiring. The second input connection port of the emergency power supply unit faces in a direction opposite to the second output connection port of the terminal block in the longitudinal direction. As a result, the second wiring can be shortened compared to the case where the second input connection port and the second output connection port are provided to face the same direction in the longitudinal direction. As a result, complication of electrical components can be prevented. Note that "in the longitudinal direction, the second input connection port faces in a direction opposite to the second output connection port" means that when the second input connection port is viewed (seen through) in the longitudinal direction from the side opposite to the side where the second output connection port exists with respect to the second input connection port, the state where all or part of the second input connection port and the second output connection port overlap, and the state where the second input connection port A and the second output connection port B do not overlap and the second input connection port A and the second output connection port B can be seen are included.

[0011] A fourth lighting device according to another aspect of the embodiment is the third lighting device, wherein the fixture body has a second through hole for inserting the second wiring between a virtual plane passing through the second output connection port of the terminal block and perpendicular to the longitudinal direction and a virtual plane passing through the second input connection port of the emergency power supply unit and perpendicular to the longitudinal direction. As a result, the elongation of the second wiring is suppressed compared to the case where the second through hole is not provided between the virtual plane on the second output connection port side and the virtual plane on the second input connection port side.

[0012] A fifth lighting device according to another aspect of the embodiment is any one of the first to fourth lighting devices, wherein the emergency lighting fixture has an emergency light source unit and a battery unit, and the battery unit is removably held by an emergency light source fixture that attaches the emergency light source unit to the fixture body. As a result, parts for providing the battery unit are not required, and the number of parts can be reduced. Also, it can contribute to the weight reduction of the emergency light source unit. The sixth lighting device according to another aspect of the embodiment is the fifth lighting device, wherein the fixture body has a recess into which the normal lighting fixture is fitted and an extension portion extending in the short direction from the open-side end of the recess, and the emergency light source fixture is attached to the extension portion. As a result, heat of heat-generating components such as the emergency light source unit and the battery unit can be released to the extension portion, so that the heat dissipation performance can be improved.

[0013] <First Embodiment> 1. Overall Configuration of Lighting Device As shown in FIG. 1, the lighting device X is attached to an installation surface (not shown) such as a ceiling, for example. Here, it is attached to the installation surface by using a suspension bolt, a screw, or the like. The lighting device X has an elongated shape. Here, the longitudinal direction and the short direction of the lighting device X may be simply referred to as the "longitudinal direction" and the "short direction". Further, since the installation surface here is a ceiling, the direction orthogonal to the installation surface is defined as the vertical direction, the side that emits light is defined as the "lower" side, and the side where the installation surface is located is defined as the "upper" side. Here, the main light emission direction of the light coincides with the vertical direction. As shown in FIGS. 1 and 2, the lighting device X includes at least the lighting fixture 1 detachably provided on the fixture body 3. In addition to the lighting fixture 1 that lights up during normal use, the lighting device X includes a lighting fixture 5 that lights up during an emergency. For the sake of distinction, for convenience, the lighting fixture that lights up during normal use is referred to as the "normal lighting fixture", and the lighting fixture that lights up during an emergency is referred to as the "emergency lighting fixture". Also, in the case of components and parts with the same name that make up the normal lighting fixture 1 and the emergency lighting fixture 5, "normal" may be added to the configuration on the normal lighting fixture side, and "emergency" may be added to the configuration on the emergency lighting fixture side, respectively. As shown in FIG. 2, the emergency lighting fixture 5 is provided on the fixture body 3. The normal lighting fixture 1 and the emergency lighting fixture 5 are electrically connected to the terminal block 32 of the fixture body 3. Hereinafter, each part will be described.

[0014] 2. Fixture Body The fixture body 3 is of a so-called hat type. The appliance body 3 has a normal lighting fixture attachment part for attaching the normal lighting fixture 1, an emergency lighting fixture attachment part for attaching the emergency lighting fixture 5, and an appliance attachment part for attaching to the installation surface. As shown in Fig. 2(a), the appliance body 3 has an appliance-side base 30, a terminal block 32, and a normal lighting fixture attachment tool 34 for attaching the normal lighting fixture 1.

[0015] (1) Appliance-side base Hereinafter, it will be mainly described with reference to Fig. 3. The appliance-side base 30 has a recessed portion 301 that recesses upward and extends in the longitudinal direction. The recessed portion 301 has a rectangular bottom plate portion 311 that is long in the longitudinal direction, and a pair of side plate portions 313 that extend downward from both ends in the short direction of the bottom plate portion 311. As shown in Fig. 1(a), the upper side of the normal lighting fixture 1 fits into the recessed portion 301. The bottom plate portion 311 of the recessed portion 301 has a plurality of through holes 301a for suspension bolts for attaching to the installation surface, a through hole 301b for input wiring from the commercial power supply side, a through hole 301c for attaching the terminal block 32 and a through hole (not shown in Fig. 3 because of the screw 329), a through hole (not shown in Fig. 3 because of the screw 349) and a through hole 301d for attaching the normal lighting fixture attachment tool 34, a through hole (not shown in Fig. 3 because of the screw 369) and a notch 301e for attaching the end cover 36 described later, etc. The through hole 301c for attaching the terminal block 32 is provided in the recessed portion 301f. A plurality (here, two) of recessed portions 301f etc. are provided in the longitudinal direction so that the terminal block 32 can be selectively attached at a plurality of locations. The through hole 301b is provided in the central region in the longitudinal direction. The central region here is the region between two positions that are shifted by 10% of the total length of the appliance body 3 to both sides in the longitudinal direction with respect to the central position in the longitudinal direction of the appliance body 3. The through hole 301b here is provided at the center in the longitudinal direction. An annular bush 38 for protecting the input wiring is fitted in the through hole 301b. The terminal block 32 is provided on one side in the longitudinal direction with respect to the through hole 301b. The appliance-side base 30 has a pair of extending portions 302 that extend outward in the lateral direction from the lower ends of the side plate portions 313 of the recessed portion 301. Here, the extending portions 302 extend in a state of inclining obliquely downward. Therefore, the extending portions 302 can also be said to be inclined plate portions. Note that the extending portions 302 have a function of reflecting light downward from the normal lighting fixture 1. The appliance-side base 30 is provided with end covers 36 at both ends in its longitudinal direction. Thereby, the upper side of the longitudinal ends of the normal lighting fixture 1 can be covered, enhancing the design quality. The end covers 36 are fixed to the appliance-side base 30 by screws 369.

[0016] (2) Terminal block The terminal block 32 has, in a main body portion 320, an input connection port 321 (see (a) of FIG. 5) for connecting to the input wiring on the commercial power supply side, a first output connection port 322 for connecting to the normal power supply unit 12 of the normal lighting fixture 1 via a first wiring, and a second output connection port 323 for connecting to the emergency power supply unit 52 of the emergency lighting fixture 5 via a second wiring. Here, for the terminal block 32, a protruding portion 324 protruding from the upper surface of the terminal block 32 fits into a through hole 301c of the bottom plate portion 311 of the appliance-side base 30, and a screw 329 that inserts through the through hole of the main body portion 320 from above is screwed into a nut 328 arranged in the recessed portion of the terminal block 32. The input connection port 321 and the first and second output connection ports 322, 323 are provided on an end face orthogonal to the longitudinal direction, and the input connection port 321 is located on the side of the through hole 301b. That is, the input connection port 321 faces the other side in the longitudinal direction, and the first and second output connection ports 322, 323 face one side in the longitudinal direction.

[0017] (3) Normal lighting fixture mounting tool As shown in FIG. 2, the normal lighting fixture mounting tool 34 mounts the normal lighting fixture 1 to the appliance main body 3 together with the normal lighting fixture to-be-mounted tool 13 of the normal lighting fixture 1. Here, the normal lighting fixture mounting tool 34 and the normal lighting fixture to-be-mounted tool 13 utilize an engagement structure. The normal lighting fixture mounting tool 34 has a fixing portion 341 fixed to the bottom plate portion 311 of the appliance-side base 30, and an engagement spring portion 343 provided on the fixing portion 341 and extending outward in the longitudinal direction. The fixing part 341 has an engaging part 345 that engages with the through hole 301d of the bottom plate part 311, and a threaded hole into which a screw 349 that inserts the through hole of the bottom plate part 311 from above in a state where the engaging part 345 is engaged is screwed. The engaging spring part 343 is elastically deformable in the longitudinal direction (vertical direction) with respect to the bottom plate part 311, and engages with an engaging receiving part 131 (see (a) of FIG. 4) of the general-purpose lamp fixture attachment 13 of the general-purpose lamp fixture 1.

[0018] 3. General-purpose lamp fixture As shown in FIG. 2, the general-purpose lamp fixture 1 includes at least a general-purpose light source base 10, a general-purpose light source unit 11, a general-purpose power supply unit 12, and a general-purpose lamp fixture attachment 13. The general-purpose power supply unit 12 is connected to the terminal block 32. The general-purpose lamp fixture 1 is detachably attached to the fixture body 3 using the general-purpose lamp fixture attachment 13. The general-purpose lamp fixture 1 further includes a general-purpose light source cover 14 that covers the general-purpose light source unit 11 from below. The general-purpose lamp fixture 1 includes a wireless communication unit 15 for wireless communication with a controller (not shown) on the general-purpose light source base 10. The general-purpose lamp fixture 1 includes a general-purpose end cover 16 that closes both ends of the assembled general-purpose light source base 10 and the general-purpose light source cover 14.

[0019] (1) General-purpose light source base The general-purpose light source base 10 is long in the longitudinal direction, and the general-purpose light source unit 11 is disposed on the lower surface, and the general-purpose power supply unit 12, the wireless communication unit 15, and the general-purpose lamp fixture attachment 13 are respectively disposed on the back surface. The general-purpose light source base 10 extends in the longitudinal direction without changing the cross-sectional shape orthogonal to the longitudinal direction. Hereinafter, mainly with reference to FIG. 4, an explanation will be given. In cross-section, the general-purpose light source base 10 has a plate-shaped flat part 100, a pair of inner L-shaped parts 102 that extend downward in an "L" shape inward from the middle part in the short direction on the lower surface of the flat part 100, and a pair of outer L-shaped parts 104 that extend downward in an "L" shape outward from a part located between the end part in the short direction on the lower surface of the flat part 100 and the inner L-shaped part 102, and a pair of folded-back parts 106 that are folded back inward in the short direction from the end part in the short direction on the upper surface of the flat part 100.

[0020] (2) Common light source module The common light source unit 11 includes a common light source substrate 110 that is long in the longitudinal direction, a plurality of LEDs 112 mounted on the lower surface of the common light source substrate 110 at intervals in the longitudinal direction, and a terminal portion (not shown) for electrically connecting the common power supply unit 12 and the common light source substrate 110. The common light source unit 11 is attached to the common light source base 10 by inserting the common light source substrate 110 into the groove formed by a pair of inner L-shaped portions 102 from the longitudinal direction.

[0021] (3) Common power supply unit The common power supply unit 12 includes a common lighting circuit (not shown) for receiving power through the terminal block 32 and supplying it to the common light source unit 11, a common circuit support 120 for supporting the common lighting circuit, a common power cover 121 for covering the supported common lighting circuit, a common cover fixture 122 for fixing the common power cover 121 to the common light source base 10, and at least a connection terminal block 123 for connecting to the terminal block 32 via the first wiring. In addition, in Fig. 4(c), the state where the common power cover 121 of the common power supply unit 12 is removed is enlarged. In this specification, those directly connected to the wiring are referred to as terminal blocks or connection terminal blocks. The common lighting circuit includes a plurality of electronic components constituting the lighting circuit and a common power supply substrate 124 on which the plurality of electronic components are mounted. The common power supply substrate 124 is rectangular, and its longitudinal direction coincides with the longitudinal direction of the lighting device X. At the longitudinal end of the common power supply substrate 124, the end closer to the terminal block 32 is located outside the common power cover 121. The connection terminal block 123 is mounted on the portion located outside. The common lighting circuit is covered by the common power cover 121 in a state covered by the insulating sheet 125 or wrapped by the insulating sheet. The normal power supply board 124 is supported in a state of being spaced apart from the upper surface of the normal light source base 10 by the engagement of the engagement portion 120a of the normal circuit support 120 attached to the normal light source base 10 with the end portion of the normal power supply board 124. Note that the lower surface of the normal power supply board 124 is supported by the bent piece 122b using the opening 122a of the normal cover fixture 122, and the upper surface is supported (position restricted) by the inclined piece 122c of the normal cover fixture 122. The normal power supply cover 121 has a top wall portion 121a and a side wall portion 121b, and the convex portion 121c of the side wall portion 121b engages with the opening 122a of the normal cover fixture 122. The connection terminal block 123 has a first input connection port 123a for connecting to the terminal block 32 in a state orthogonal to the longitudinal direction. Specifically, the connection terminal block 123 has the first input connection port 123a facing the first output connection port 322 of the terminal block 32 in the longitudinal direction. Note that three first input connection ports 123a are arranged side by side in the short side direction.

[0022] (4) Normal lighting fixture attachment The normal lighting fixture attachment 13 includes an engagement receiving portion 131 for engaging with the engagement spring portion 343 of the normal lighting fixture attachment 34 of the fixture body 3, and an attachment portion 132 for attaching the normal lighting fixture attachment 13 to the normal light source base 10. The engagement receiving portion 131 has a "C" shape, "U" shape, or a shape similar thereto with an opening on the lower side in a cross section orthogonal to the longitudinal direction. The attachment portion 132 bends outward in the short side direction from the lower ends of a pair of the engagement receiving portions 131. The attachment portion 132 is attached to the normal light source base 10 by inserting the bent tip portion thereof into the folded-back portion 106 of the normal light source base 10 from the longitudinal direction.

[0023] (5) Normal light source cover The normal light source cover 14 is made of a light-transmissive material. The normal light source cover 14 has a normal cover body 140 having a "U" shape, "C" shape, or a shape similar thereto with an upper opening as a cross-sectional shape, and a bent portion 142 that bends downward from the opening-side end portion. The normal light source cover 14 is attached to the normal light source base 10 by the bent portion 142 engaging with the outer L-shaped portion 104 of the normal light source base 10.

[0024] (6) Wireless communication unit The wireless communication unit 15 includes a receiving unit that receives the lighting conditions of the normal lighting fixture 1, receives lighting ON / OFF signals, receives the identification information of its own device, etc. from a controller outside the figure, and a wireless control unit that outputs the information received by the receiving unit to the normal power supply unit 12 and updates the identification information of its own device. The receiving unit and the wireless control unit are composed of a plurality of electronic components, these electronic components are mounted on a wireless substrate, and are housed in the normal wireless case 151. The normal wireless case 151 includes a lower wireless case 152 having an insertion portion that is inserted from the longitudinal end into the folded-back portion 106 of the normal light source base 10, and an upper wireless case 153 that is detachably attached to the lower wireless case 152 in a state of covering the lower wireless case 152. The upper wireless case 153 is provided with a through-hole for a device housing device (so-called dongle) 159 that houses a device for storing the identification information of the lighting device X in the housing, and the device in the device housing device 159 is detachably connected to the wireless substrate.

[0025] (7) Normal end cover The normal end cover 16 has a normal cover body 160 orthogonal to the longitudinal direction, a fitting portion that fits from the periphery of the normal cover body 160 to the ends of the normal light source base 10 and the normal light source cover 14, and an insertion portion that is inserted from the longitudinal end into the folded-back portion 106 of the normal light source base 10.

[0026] 4. Emergency lighting fixture As shown in FIG. 5, the emergency lighting fixture 5 includes at least an emergency light source unit 51 and an emergency power supply unit 52. Here, the emergency lighting fixture 5 includes an emergency light source fixture 50 for supporting the emergency light source unit 51 and attaching it to the appliance body 3. Thereby, the emergency light source unit 51 can be attached to the appliance body 3 provided with the normal lighting fixture 1. The emergency lighting fixture 5 includes an emergency power supply fixture 53 for attaching the emergency power supply unit 52 to the appliance main body 3. Thereby, the emergency power supply unit 52 can be attached to the appliance main body 3 provided with the regular lighting fixture 1.

[0027] The emergency lighting fixture 5 includes a battery unit 54 that functions when there is no power reception from the commercial power supply (for example, during a power outage). Thereby, even when the regular lighting fixture 1 cannot be lit, the emergency lighting fixture 5 can be lit. Here, the emergency lighting fixture 5 includes an emergency battery fixture (61) for attaching the battery unit 54 to the appliance main body 3. Thereby, the battery unit 54 can be attached (arranged) to the appliance main body 3 provided with the regular lighting fixture 1. The emergency lighting fixture 5 includes an inspection switch unit 56 for inspection. Here, the inspection switch unit 56 is attached using an emergency light source fixture 50 that attaches the emergency light source unit 51 to the appliance main body 3. Thereby, the inspection switch unit 56 can be attached (arranged) to the appliance main body 3 without providing a new fixture. The emergency lighting fixture 5 includes an emergency lower cover 57 that covers the emergency light source unit 51 and the inspection switch unit 56 from below, and an emergency upper cover 58 that covers the emergency power supply unit 52 from below and from the side. Note that the emergency lower cover 57 is provided on the lower surface side of the appliance main body 3, and the emergency upper cover 58 is provided on the upper surface side of the appliance main body 3, respectively. Hereinafter, each unit and the like will be described.

[0028] (1) Emergency light source unit As shown in FIG. 8, the emergency light source unit 51 includes at least an emergency light source module 510 and an emergency light source cover that covers the emergency light source module 510. The emergency light source cover here may be constituted by an optical processing member 511 that performs optical processing on the light from the emergency light source unit 51. The emergency light source unit 51 may include, for example, an insulator 512 and an emergency light source case that houses the emergency light source module 510. That is, as an example, the emergency light source unit 51 includes an emergency light source module 510, an optical processing member 511, an insulator 512 disposed between the emergency light source module 510 and the optical processing member 511, and an emergency light source case 513 (see FIG. 7) that houses the emergency light source module 510, the optical processing member 511, and the insulator 512. The emergency light source case 513 includes an emergency light source upper case 514 and an emergency light source lower case 515, and is attached to an emergency light source fixture 50 (see (a) of FIG. 5).

[0029] The emergency light source module 510 includes an LED 516 and a connection terminal 517 on an emergency light source substrate 518. Here, a plurality of LEDs 516 (for example, four) are grouped together, and a plurality of groups (for example, two groups) are provided at intervals. The optical processing member 511 diffuses or condenses the light from the LED 516. The optical processing member 511 here has a lens portion 511a that performs a condensing process. A plurality of (for example, two) lens portions 511a are provided corresponding to the plurality of groups of LEDs 516. Here, the insulator 512 is constituted by an insulating film, and has a through hole 512a in a portion corresponding to the LED 516 and a notch portion 512b in a portion corresponding to the connection terminal 517. The insulator 512 has a rectangular shape larger than the rectangular emergency light source substrate 518. The insulator 512 has a position regulating portion 512c that abuts against a part of the periphery of the emergency light source substrate 518, and a rod-shaped portion 512d that extends upward from the central portion. The rod-shaped portion 512d passes through the through hole 518a of the emergency light source substrate 518 and the through hole 514d of the emergency light source upper case 514, and extends upward as shown in (b) of FIG. 7. Thereby, the emergency light source substrate 518 can be arranged at a determined position with respect to the emergency light source upper case 514. Note that the insulator 512 has a protruding strip portion 512e that protrudes upward from the periphery. Thereby, the insulator 512 can be arranged in a stable state.

[0030] The emergency light upper case 514 has a rectangular plate-shaped main body portion 514a that is long in the longitudinal direction of the rectangular emergency light module 510, a through-hole 514b for the rod-shaped portion 515c of the emergency light lower case 515, a through-hole 514c for a screw 509 that passes through the through-hole of the boss portion 515d of the emergency light lower case 515, and a through-hole 514d for the rod-shaped portion 512d of the insulator 512. The emergency light lower case 515 has a rectangular plate-shaped main body portion 515a that is long in the longitudinal direction of the rectangular emergency light module 510, a through-hole 515b provided corresponding to the lens portion 511a of the optical processing member 511, a rod-shaped portion 515c that extends upward, a boss portion 515d that extends upward in a bottomed cylindrical shape and has a through-hole at the bottom portion, and a protruding portion 515e that protrudes upward from the opening edge of the through-hole 515b and fits with the optical processing member 511. As shown in FIG. 7(b), the rod-shaped portion 515c of the emergency light lower case 515 passes through the through-hole 514b of the emergency light upper case 514 and extends out, and the screw 509 passes through the through-hole of the boss portion 515d of the emergency light lower case 515 and the through-hole 514c of the emergency light upper case 514 (see FIG. 8(b)) and extends out.

[0031] (2) Emergency light fixture As shown in FIG. 7, the emergency light fixture 50 has a light source support portion that supports the emergency light unit 51 and a light source fixing portion for fixing the emergency light unit 51 to the appliance main body 3. The emergency light fixture 50 has a flat plate portion 501 that extends in the longitudinal direction, a pair of upper extension portions 502 that extend upward from both ends in the longitudinal direction of the flat plate portion 501, and horizontal extension portions 503, 504 that extend in the longitudinal direction from the upper ends of the upper extension portions 502. Here, the support portion is constituted by the flat plate portion 501, and the attachment portion uses the horizontal extension portions 503, 504. The upper extension portion 502 also functions as a connecting portion that connects the support portion and the attachment portion.

[0032] The flat plate portion 501 has a through-hole 501a for a wiring 519 that connects the emergency light unit 51 and the emergency power supply unit 52. The through-hole 501a fits with the upper side of the inspection switch unit 56. The flat plate portion 501 has through holes 501b and 501c into which the rod-shaped portions 515c and 512d (see (b) of FIG. 7) of the emergency light source unit 51 are fitted. Thereby, the emergency light source unit 51 can be supported in a positioned state. The flat plate portion 501 has a threaded hole 501d into which a screw 509 (see (b) of FIG. 7) from the emergency light source unit 51 is screwed. Thereby, the emergency light source unit 51 is attached to the flat plate portion 501. The emergency light attachment 50 has a bent portion 505 that bends upward from the end portion on the long side of the flat plate portion 501. Thereby, the flat plate portion 501 is reinforced.

[0033] As shown in FIG. 6, the emergency light attachment 50 is attached to the instrument body 3 to which the fixtures 61 and 62 are attached. Alternatively, the emergency light attachment 50 is attached to the fixtures 61 and 62 attached to the instrument body 3. Note that the fixtures 61 and 62 also function as reinforcing tools when the instrument body 3 does not have sufficient mechanical characteristics. The fixtures 61 and 62 are formed, for example, by pressing a single metal plate as shown in (b) of FIG. 6. Note that the fixtures 61 and 62 may be formed of resin. The fixtures 61 and 62 have contact portions 611 and 621 that contact the upper surface of the instrument-side base 30, and attachment portions (614b and 624a) for attaching the emergency light attachment 50.

[0034] The contact portions 611 and 621 are configured to contact at least one of the bottom plate portion 311 and the pair of side plate portions 313 of the instrument-side base 30 and the extension portion 302 on the side of at least one side plate portion 313. That is, the contact portions 611 and 621 have a bottom plate facing portion 612 and 622, a side plate facing portion 613 and 623, and an extension facing portion 614 and 624. The contact portions 611 and 621 have semi-circular notches 612a and 622a corresponding to the raised portions 301g of the peripheral portion of the through-hole 301a of the instrument body 3. The contact portions 611 and 621 have through-holes 612b and 622b for the rivets 69 for fixing the fixtures 61 and 62 to the instrument body 3. The rivet 69 is inserted through the through-holes 612b and 622b and the through-hole 301i of the instrument body 3.

[0035] The fixtures 61 and 62 have through-holes 614a and 624a for attaching the emergency light fixture 50 to the extending opposing portions 614 and 624. A rivet 68 is inserted through the through-hole 614a of the fixture 61. The rivet 68 is inserted through the through-hole 614a of the fixture 61, the through-hole 302a of the extension portion 302 of the instrument body 3, and the through-hole 503a of the lateral extension portion 503 of the emergency light fixture 50. The lateral extension portion 504 of the emergency light fixture 50 engages with the through-hole 624a of the fixture 62 after passing through the through-hole 302b of the extension portion 302 of the instrument body 3.

[0036] (3) Inspection Switch Unit The inspection switch unit 56 receives an operation for self-inspection of the emergency lamp 5, transmits a signal to the emergency power supply unit 52 when receiving the self-inspection operation, and displays the inspection state. As shown in FIG. 8, the inspection switch unit 56 includes an inspection module 560 in which a display means (for example, an LED) 562, an operation means (a switch) 563, and a connector 564 for electrical connection are mounted on an inspection substrate 561, and an inspection lower case 565 and an inspection upper case 566 for accommodating the inspection module 560. The inspection lower case 565 and the inspection upper case 566 constitute an inspection case 567 (see FIG. 7). The inspection lower case 565 has a through-hole 565a for making the display means 562 and the operation means 563 visible and operable from the front side. For the connection between the inspection lower case 565 and the inspection upper case 566, a screw structure, a rivet structure, an engagement structure, etc. can be used. Here, the engagement portion (for example, an engagement convex portion) 565b of the inspection lower case 565 engages with the engagement portion (for example, an engagement hole portion) 566a of the inspection upper case 566. The inspection case 567 (here, the lower inspection case 565) has an attachment portion for attaching the inspection switch unit 56 to the emergency light fixture 50 as shown in Fig. 5(a). For the attachment, a screw structure, a rivet structure, an engagement structure, etc. can be used. Here, a screw 569 that passes through the through-hole of the protruding portion 565c of the lower inspection case 565 is screwed into the screw hole 501f of the flat plate portion 501 of the emergency light fixture 50 shown in Fig. 7.

[0037] (4) Emergency lower cover As shown in Fig. 5, the emergency lower cover 57 has a rectangular parallelepiped-shaped lower cover main body portion 570 that is long in the longitudinal direction and open at the top, and an attachment portion for attaching the emergency lower cover 57 to the instrument main body 3 and the fixtures 61, 62. As shown in Fig. 3(a), the lower cover main body portion 570 is provided so as to be close to the lower surface of the extension portion 302 of the instrument main body 3. For this reason, the upper end edge of the lower cover main body portion 570 has an inclined shape that slopes downward as it moves outward in the short side direction. The bottom plate portion 573 of the lower cover main body portion 570 is provided with a through-hole 573a for the emergency light unit 51 and a through-hole 573b for the inspection switch unit 56. The emergency lower cover 57 has horizontal extension portions 575, 572 that bend in the longitudinal direction from the upper ends of the side plate portions 574 on the short side. For attaching the emergency lower cover 57 to the instrument main body 3 (fixtures 61, 62), a screwing structure, a rivet structure, or an engagement structure can be used. Here, a screwing structure and an engagement structure are used. That is, the screw hole 571 of the horizontal extension portion 575 functions as an attachment portion into which the screw 67 is screwed, and the horizontal extension portion 572 functions as an attachment portion as an engagement structure. As shown in Fig. 6, in a state where the horizontal extension portion 572 engages with the through-hole 624b that functions as an attachment portion of the fixture 62 by passing through the through-hole 302d of the instrument main body 3, the screw 67 passes through the through-hole 614b of the fixture 61 and the through-hole 302c of the instrument main body 3 and is screwed into the screw hole 571 of the horizontal extension portion 575 of the emergency lower cover 57.

[0038] (5) Emergency power unit The emergency power supply unit 52 has an emergency power supply circuit 520 for generating the lighting power of the emergency light source unit 51, generating the driving power of the inspection switch unit 56, generating the driving power of the control unit such as executing an inspection program by operating the inspection switch unit 56, and the like. As shown in FIG. 11, the emergency power supply circuit 520 is configured by mounting a plurality of electronic components 521 including a control unit on an emergency power supply board 522. As shown in FIGS. 10 and 11, the emergency power supply unit 52 includes a connection terminal block 523 for electrically connecting to the terminal block 32, a connector 524B for connecting to the battery unit 54 via wirings 549 (see FIG. 9) and 547, a connector 524A for connecting to the inspection switch unit 56 via a wiring 568, and a connector 524C for connecting to the emergency light source unit 51 via a wiring 519, which are provided on the emergency power supply board 522. Note that the wiring 568 for the inspection switch unit 56 and the wiring 519 for the emergency light source unit 51 are inserted through a ring-shaped bush 303 (see (a) of FIG. 6) that fits into the through hole 302e shown in (b) of FIG. 9. The emergency power supply circuit 520 is attached to the emergency power supply base 526 via an insulating sheet 527 and is covered with an emergency power supply cover 529 with an insulating sheet 528 interposed therebetween.

[0039] The emergency power supply board 522 is rectangular, and its longitudinal direction coincides with the longitudinal direction of the lighting device X. The connection terminal block 523 and the connectors 524A, 524B, and 524C are arranged on both end sides in the longitudinal direction. Note that the second input connection port 523a of the connection terminal block 523 faces the terminal block 32 and is provided on a surface orthogonal to the longitudinal direction. The connection terminal block 523 is provided at an end portion of the emergency power supply board 522 closer to the terminal block 32. The connection terminal block 523 is arranged to be located outside the emergency power supply cover 529 as shown in (a) of FIG. 9 and (a) of FIG. 10. Thereby, the connection of the second wiring to the terminal block 32 can be easily performed. Note that on the emergency power supply board 522, the connection terminal block 523 may be arranged such that the second input connection port 523a faces the terminal block 32 side. Even in this case, the connection of the second wiring to the terminal block 32 can be easily performed. The connectors 524A, 524B, and 524C are arranged to be located outside the emergency power supply cover 529 as shown in the enlarged view of Fig. 10(a). Thereby, as shown in Fig. 11(a), the connection of the wirings 519, 568, and 547 to the battery unit 54, the inspection switch unit 56, and the emergency light source unit 51 can be easily performed. Note that as shown in Fig. 7, the wiring 519 is connected to a connector 519A for connecting to the connector 524C, and the wiring 568 is connected to a connector 568A for connecting to the connector 524A. The wiring 547 has, at one end, a connector 547A for connecting to the connector 524B, and at the other end, a connector 547B for connecting to the connector 548 provided on the power supply support 530. Also, in Fig. 11 and the like, the connection of the wiring is shown as one line for clarity.

[0040] As shown in Fig. 11, the emergency power supply base 526 has a rectangular flat plate portion 526a and a pair of long side plate portions 526b extending downward from the long side edge of the flat plate portion 526a. The emergency power supply base 526 has a cut-up portion 526c and a through hole 526d formed in the flat plate portion 526a. The cut-up portion 526c is at both ends in the longitudinal direction and restricts the longitudinal movement of the insulating sheet 527 (see Fig. 10(a)). The long side plate portion 526b has cut-up portions 526e at intervals in the longitudinal direction. In the region straddling the flat plate portion 526a and the long side plate portion 526b, there is a bent portion 526g and a screw hole 526h in the flat portion. A screw 525 for inserting through the through hole of the emergency power supply board 522 is screwed into the screw hole 526h. Note that the end of the long side of the emergency power supply board 522 is supported by the cut-up portion 526e of the long side plate portion 526b.

[0041] The emergency power supply cover 529 has a cover body 529a that is open at the top and has a long rectangular parallelepiped shape along the longitudinal direction of the lighting device X, a plurality of upwardly cut-up portions 529c provided on the long side plate portion 526b of the cover body 529a, a plurality of downwardly cut-up portions 529d provided on the long side plate portion 529b of the cover body 529a, and a notch portion 529f provided on one short side plate portion 529e of the cover body 529a. Here, there are three upwardly cut-up portions 529c and two downwardly cut-up portions 529d. When the emergency power supply cover 529 is attached to the emergency power supply base 526, the upwardly cut-up portions 529c abut against the lower ends of the long side plate portions 526b of the emergency power supply base 526, and the downwardly cut-up portions 529d engage (fit) with the openings of the cut-up portions 526e of the long side plate portions 526b of the emergency power supply base 526. The notch portion 529f of the short side plate portion 529e is for the connection terminal block 523 provided on the emergency power supply substrate 522.

[0042] (6) Emergency power supply fixture As shown in FIG. 10, the emergency power supply fixture 53 has a power supply support 530 that supports the emergency power supply unit 52 and a fixture 555 for fixing the power supply support 530 to the appliance body 3.

[0043] (6-1) Power supply support The power supply support 530 has a rectangular flat plate portion 531 that extends in the longitudinal direction, long side plate portions 532, 533 that extend downward from the long side ends of the flat plate portion 531, and short side plate portions 534, 535 that extend downward from the short side ends of the flat plate portion 531. Here, the power supply support portion is constituted by the flat plate portion 531. The flat plate portion 531 has an attachment portion for attaching the emergency power supply unit 52 to the flat plate portion 531. For attachment, a screwing structure, a rivet structure, an engagement concept, etc. can be used. Here, screws and nuts are used. The screw 538 passes through the through hole 526d (see FIG. 11) of the emergency power supply base 526 of the emergency power supply unit 52 and the through hole 531a of the flat plate portion 531 and is screwed into the nut 537 on the upper surface of the flat plate portion 531. A connector 548 for connecting to the connector 545 of the battery unit 54 is attached to a through-hole (not shown in Fig. 10 because of the connector 545) in the short side plate portion 535 on the side away from the terminal block 32. The battery unit 54 is connected to the connector 524B of the emergency power supply unit 52 via a wiring 549, connectors 545, 548, 547B, a wiring 547, and a connector 547A (see Fig. 11(a)). The long side plate portion 532 located on the outer side in the short side direction has a cutout portion 532a leaving both end portions and the upper end portion in the long side direction. This enables weight reduction. The long side plate portion 532 has attachment portions at both end portions 532b for detachably attaching the emergency upper cover 58 described later. For attachment, a screwing structure, an engaging structure, etc. can be used. Here, a screw 589 (see Fig. 5) is used, and the attachment portion is composed of a through-hole 532c and a nut 532d attached to the back side of the through-hole 532c.

[0044] (6-2) Fixture There are two fixtures 555 here, which are provided at intervals in the longitudinal direction. The fixture 555 is manufactured, for example, by pressing a metal plate. The fixture 555 has an appliance-side attachment portion 556 attached to the appliance main body 3 side and a power-source-side attachment portion 557 attached to the power-source support 530 side. Here, there is a stepped portion between the appliance-side attachment portion 556 and the power-source-side attachment portion 557, and the stepped portion functions as a connecting portion 558 connecting both portions.

[0045] As shown in Fig. 5(b), the appliance-side attachment portion 556 faces the appliance-side base 30 of the appliance main body 3. For attachment, a screwing structure, a rivet structure, an engaging structure, etc. can be used. Here, a rivet 539 is used, and the appliance-side attachment portion 556 has one or more (for example, two) through-holes 556a for the rivet 539. The through-holes 556a are provided at intervals in the short side direction. As shown in Fig. 9(b), the power supply side attachment portion 557 faces the flat plate portion 531 of the power supply support 530. For attachment, a screwing concept, a rivet structure, an engagement structure, welding, etc. can be used. Here, welding is used. The planned welding portion of the power supply side attachment portion 557 is indicated by "557a", the planned welding portion of the power supply support 530 is indicated by "531c", and the welded portion is indicated by "557b" in Fig. 9. The welding can be at one or more locations. Here, it is welded at two locations with an interval in the longitudinal direction. The connecting portion 558 bends downward from the edge in the short side direction of the appliance side attachment portion 556. The bending angle corresponds to the angle between the bottom plate portion 311 and the side plate portion 313 of the appliance side base 30 of the appliance body 3. Thereby, as shown in Fig. 5(b), the connecting portion 558 faces (abuts against) the side plate portion 313 of the appliance side base 30, and the positioning of the emergency power supply fixture 53 with respect to the appliance body 3 can be easily performed.

[0046] (7) Battery unit As shown in Fig. 10, the battery unit 54 includes a rechargeable battery (not shown), a battery case 541 that houses the battery, and wiring 549 and a connector 545 provided in the battery case 541 for electrically connecting to the emergency power supply unit 52. The connector 545 is connected to the connector 548 on the short side plate portion 535 of the power supply support 530. As shown in FIG. 5, the battery unit 54 is provided on the fixture 61. Specifically, as shown in FIG. 10, the battery unit 54 is placed on a horizontal portion 615 that extends horizontally from the edge of the extending opposing portion 614 of the fixture 61. The fixture 61 has a holding portion for holding the battery unit 54. The holding portion here includes a cut-up portion 615a provided at the connecting portion of the extending opposing portion 614 and the horizontal portion 615, a bent portion 615b formed at the end of the horizontal portion 615 opposite to the extending opposing portion 614, and an extending portion 615c that extends upward from the longitudinal edge of the horizontal portion 615 on the side opposite to the emergency power unit 52. Thereby, it is possible to prevent the battery unit 54 arranged on the fixture 61 from falling off the horizontal portion 615. Also, with the emergency upper cover 58 removed, the battery unit 54 can be inserted and removed from the holding portion in the short-side direction. Thereby, for example, when installing the lighting device X, the emergency upper cover 58 can be removed, and after connecting the connector 545 or the like, the battery unit 54 can be arranged, improving the operability during installation.

[0047] (8) Emergency upper cover As shown in FIG. 1, the emergency upper cover 58 covers at least the emergency power unit 52. Here, the emergency upper cover 58 and the power support 530 accommodate the emergency power unit 52. That is, the emergency upper cover 58 and the power support 530 can also be said to be an emergency power case that houses the emergency power unit 52. As shown in FIG. 5, the emergency upper cover 58 also covers the battery unit 54. The emergency upper cover 58 includes a long side plate portion 581 having a rectangular shape that extends in the longitudinal direction and the vertical direction, a short side plate portion 582 that extends inward in the short-side direction from the longitudinal edge of the long side plate portion 581, and a bottom plate portion 583 that extends horizontally from the lower end of the long side plate portion 581. Note that both longitudinal ends of the bottom plate portion 583 are connected to the short side plate portion 582. Thereby, the mechanical properties of the emergency upper cover 58 can be improved. The long side plate portion 581 has an attachment portion 581a for removably attaching the emergency upper cover 58 to the power supply support 530. For the attachment, a screwing structure, an engaging structure, etc. can be used. Here, a screw 589 is used for the attachment, and the long side plate portion 581 has a through hole as the attachment portion 581a. The screw 589 passes through the through hole of the power supply support 530 and is screwed into a nut 532d (see (a) of FIG. 10) on the back side of the through hole. As shown in FIG. 1, the emergency upper cover 58 is arranged close to the upper surface of the appliance body. For this reason, the lower part of the short side plate portion 582 on the side opposite to the long side plate portion 581 is missing in an inclined shape. Thereby, the design property can be improved. The emergency upper cover 58 is provided with a lid plate 59 that covers the battery unit 54.

[0048] 5. Arrangement This will be described with reference to FIG. 12. FIG. 12 is a view of the appliance body cut at the center in the short side direction and viewed from above. Note that the power supply support 530 is removed so that the emergency power supply unit 52 can be seen.

[0049] The appliance body 3 has a through hole 301b for inserting an input wiring connected to a commercial power supply at the center C between a first end portion A which is one end in the longitudinal direction of the appliance body 3 and a second end portion B which is the other end in the longitudinal direction. Also, the normal power supply unit 12 of the normal lighting fixture 1 is arranged between the first end portion A and the through hole 301b, and the emergency power supply unit 52 of the emergency lighting fixture 5 is arranged between the through hole 301b and the second end portion B and adjacent to the appliance body 3 in the short side direction. As a result, the normal power supply unit 12 and the emergency power supply unit 52 are located on both sides in the longitudinal direction with the through hole 301b interposed therebetween, and it is possible to prevent the normal power supply unit 12 and the emergency power supply unit 52 from being crowded. Also, this can prevent interference between the first wiring, the second wiring, etc. Further, due to the above arrangement, the center of gravity position of the lighting device X becomes the position of "G1" in FIG. 12. In this way, the center of gravity is located between a pair of suspension bolts, and it is possible to prevent the load from being biased to one suspension bolt. Furthermore, since the emergency power supply unit 52 is shifted in the short side direction with respect to the region (the recessed portion 301) that holds the normal lighting fixture 1 in the appliance main body 3, it is easy to prevent interference of the second wiring. In FIG. 1, the emergency power supply unit 52 is spaced apart and adjacent to the recessed portion 301 that houses the upper part of the normal lighting fixture 1 in the appliance main body 3 in the short side direction, but it may be adjacent in a state of being in contact with or close to the recessed portion 301. That is, when viewing the lighting device X from above, it may be adjacent so that the recessed portion 301 of the appliance main body 3 and the emergency power supply unit 52 do not overlap.

[0050] The terminal block 32 of the appliance main body 3 is connected to the input wiring introduced into the appliance main body 3 through the through hole 301b. The terminal block 32 passes through the end portion on the through hole 301a side in the normal power supply unit 12 and a virtual plane (the end portion here is the first input connection port 123a of the normal power supply unit 12) D orthogonal to the longitudinal direction, and passes through the end portion on the through hole 301b side in the emergency power supply unit 52 and a virtual plane (the end portion here is the second input connection port 523a of the emergency power supply unit 52) E orthogonal to the longitudinal direction. It is arranged between them. Thereby, since the first wiring connecting the terminal block 32 and the normal power supply unit 12 and the second wiring connecting the terminal block 32 and the emergency power supply unit 52 can be shortened, it is possible to suppress the complication of the wiring. In addition, since the first wiring and the second wiring are shortened, the first wiring and the second wiring can be easily arranged. Note that the positional relationship among the input connection port 321 for the input wiring, the first output connection port 322 for the first wiring, and the second output connection port 323 for the second wiring in the terminal block 32 is not particularly limited. In FIG. 12, since the virtual planes D and E show the state of viewing the appliance main body 3 from above, they are shown by "lines". However, when the appliance main body 3 is viewed from the short side direction, the virtual planes D and E are composed of planes that extend vertically in the up and down direction of the appliance main body 3 as shown in FIG. 13(a).

[0051] The second input connection port 523a for connecting to the second wiring in the emergency power supply unit 52 is arranged in the longitudinal direction so as to face the second output connection port 323 for connecting to the second wiring for the emergency power supply unit 52 in the terminal block 32 in the opposite direction in the longitudinal direction. Thereby, since the second wiring can be shortened, it is possible to suppress the complication of the wiring. In addition, the connection of the second wiring can be easily performed. Also, similarly, as a configuration capable of shortening the second wiring, there are also patterns in which either the second input connection port 523a or the second output connection port 323 is arranged to face in the short side direction, and patterns in which the second input connection port 523a and the second output connection port 323 are arranged to face in the direction of facing each other in the short side direction.

[0052] The appliance main body 3 has a second through hole 313a for inserting the second wiring, as shown in FIG. 13, between a third virtual plane J passing through the second output connection port 323 of the terminal block 32 and orthogonal to the longitudinal direction, and a virtual plane H passing through the second input connection port 523a of the emergency power supply unit 52 and orthogonal to the longitudinal direction. The second through hole 313a is provided in the side plate portion 313 constituting the recessed portion 301. Thereby, the second wiring can be shortened compared to the case where there is no second through hole 313a. In addition, since it can be shortened, the second wiring can be easily arranged. The second through hole 313a is provided in the side plate portion 313, but may be provided in the bottom plate portion 311 as long as it is between the virtual planes H and J. However, if the arrangement of the second wiring is not considered, the second through hole 313a may be provided in other parts.

[0053] Considering the length of the wiring in the emergency lighting fixture 5 attached to the appliance main body 3, the emergency lighting fixture 5 preferably includes at least an emergency light source unit 51 and an emergency power supply unit 52. The emergency light source unit 51 is arranged on the surface (lower surface) of the appliance main body 3, and the emergency power supply unit 52 is arranged on the back surface (upper surface) of the appliance main body 3 at a position overlapping the emergency light source unit 51 in the front-rear direction. Thereby, the emergency light source unit 51 and the emergency power supply unit 52 are brought closer, and the wiring can be shortened. When the emergency lighting fixture 5 includes a battery unit 54 that supplies power during a power outage, it is preferably arranged on the back surface (upper surface) of the appliance main body 3 adjacent to the emergency power supply unit 52. This brings the battery unit 54 and the emergency power supply unit 52 closer together, enabling shorter wiring. In the case of a lighting device considering the wiring within the emergency lighting fixture 5, the position of the terminal block 32, the position of the input wiring, etc. are not particularly limited.

[0054] When the emergency lighting fixture 5 includes the heavy emergency power supply unit 52, it preferably includes a fixture (fixing part) 555 arranged on the upper surface of the appliance main body 3 and also functioning as a reinforcing tool for the appliance main body 3, and a power supply support (power supply support part) 530 attached to the fixture (fixing part) 555 and supporting the emergency power supply unit 52. This allows the use of the appliance main body of a lighting device without the emergency lighting fixture 5. Also, by using the fixture (fixing part) 555 and the power supply support (power supply support part) 530, for example, even when the emergency power supply unit 52 is arranged above the extension part 302, without forming a through hole or a notch in the extension part 302 (excluding the through hole for wiring), that is, without degrading the mechanical characteristics of the extension part 302 or the appliance main body 3, the emergency power supply unit 52 can be provided. In the case of focusing on the attachment of the emergency power supply unit 52, the terminal block 32, the length of the wiring, the position of the input wiring, etc. are not particularly limited.

[0055] <Second Embodiment> As shown in FIG. 14, the lighting device Y of the second embodiment includes a normal lighting fixture 1, an appliance main body 2003, and an emergency lighting fixture 2005. The normal lighting fixture 1 has the same configuration as that of the first embodiment, and the same reference numerals are used and its description is omitted.

[0056] 1. Appliance Main Body The appliance main body 2003 is of the so-called reverse Fuji type. For the same configurations as those of the first embodiment, the same reference numerals are used and their descriptions are omitted. As shown in FIG. 15, the appliance body 2003 has a normal lighting fixture mounting portion for mounting the normal lighting fixture 1, an emergency lighting fixture mounting portion for mounting the emergency lighting fixture 2005, and an appliance mounting portion for mounting on the installation surface. The appliance body 2003 has an appliance-side base 2030, a terminal block 32, a normal lighting fixture mounting tool 34 for mounting the normal lighting fixture 1, and a terminal cover 2036.

[0057] The appliance-side base 2030 has a recessed portion 2301 that recesses upward and extends in the longitudinal direction, and a pair of extending portions 2302 that extend outward in the short direction from both ends in the short direction of the recessed portion 2301. The recessed portion 2301 has a bottom plate portion 2311 and a pair of side plate portions 2313. The pair of extending portions 2302 extend in a state of being inclined obliquely upward. Therefore, the extending portion 2302 can also be said to be an inclined plate portion. The upper part of the normal lighting fixture 1 fits into the recessed portion 2301 in the same manner as in the first embodiment. The extending portion 2302 has a function of reflecting light downward from the normal lighting fixture 1. The terminal block 32 and the normal lighting fixture mounting tool 34 are attached to the bottom plate portion 2311 of the recessed portion 2301, and have a through hole 2301b for input wiring, a through hole 2310a for a suspension bolt (not shown), and through holes for attaching the terminal block 32 and the normal lighting fixture mounting tool 34. The emergency lighting fixture 2005 is provided on the lower surface of the appliance-side base 2030, more specifically, on the lower surface of one of the extending portions 2302. The emergency power supply unit 52 of the emergency lighting fixture 2005 and the normal power supply unit 12 of the normal lighting fixture 1 are located on both sides in the longitudinal direction with the through hole 2301b for input wiring interposed therebetween.

[0058] 2. Emergency Lighting Fixture As shown in FIG. 16, the emergency lighting fixture 2005 includes an emergency light source unit 51, an emergency power supply unit 52, a battery unit 54, and an inspection switch unit 56. These units are provided on the lower surface of the appliance body 2003 in the second embodiment. The emergency lighting fixture 2005 includes an emergency light source fixture 2050 for attaching the emergency light source unit 51 to the fixture main body 2003. An emergency power unit 54 and an inspection switch unit 56 are attached to the emergency light source fixture 2050 here. The emergency power unit 52 is directly attached to the fixture main body 2003. As shown in FIG. 15, the emergency lighting fixture 2005 includes an emergency lower cover 2057 that covers from below, excluding the lens portion 511a of the emergency light source unit 51, the display means 562, and the operation means 563 of the inspection switch unit 56, and lower cover fixtures 2058 and 2059 for attaching the emergency lower cover 2057 to the fixture main body 3 as shown in FIG. 16. The emergency power unit 52, the emergency light source fixture 2050, and the lower cover fixtures 2058 and 2059 are attached using a pair of fixtures 2061 and 2062 that are arranged at intervals in the longitudinal direction on the upper surface of the fixture main body 2003. The fixtures 2061 and 2062 may be configured as part of the fixture main body 2003 or as part of the emergency lighting fixture 2005. Also, the fixtures 2061 and 2062 function as reinforcing tools when the fixture main body 2003 does not have sufficient mechanical properties.

[0059] (1) Emergency power unit As shown in FIGS. 16 and 17, the emergency power unit 52 is attached to the extension portion 2302 of the fixture main body 2003 using the fixtures 2061 and 2062.

[0060] As shown in FIGS. 16 and 17, the fixtures 2061 and 2062 are formed, for example, by pressing a single metal plate. By using the fixtures 2061 and 2062, the fixture-side base 2030 can be partially reinforced, and the overall plate thickness of the fixture-side base 2030 can be reduced. Thereby, weight reduction can be achieved. The fixtures 2061 and 2062 have contact portions 2611 and 2621 that contact the upper surface of the fixture-side base 2030, and an attachment portion for attaching the emergency power unit 52.

[0061] The connection parts 2611 and 2621 have a bottom plate facing part 2612, 2622 facing the bottom plate part 2311 of the appliance side base 2030, a side plate facing part 2613, 2623 facing at least one of the pair of side plate parts 2313, and an extension facing part 2614, 2624 facing the extension part 2302 on the side of at least one side plate part 2313. The bottom plate facing part 2612 has a notch part 2612a corresponding to the attachment part 2011a of the terminal block 32 to the appliance main body 2003. The bottom plate facing part 2622 has a notch part 2622a corresponding to the through hole 2011b of the appliance main body 2003. The bottom plate facing parts 2612 and 2622 have through holes 2612b and 2622b for rivets 2069 to fix the fixtures 2061 and 2062 to the appliance main body 2003. The rivets 2069 are inserted through the through holes 2612b and 2622b and the through hole 2301i of the appliance main body 2003. The bottom plate facing part 2622 of the fixture 2062 has a through hole 2622c corresponding to the convex part 2311d of the appliance main body 2003 (bottom plate part 2311), and the bottom plate facing part 2612 of the fixture 2061 also has a through hole 2612c correspondingly.

[0062] The fixtures 2061 and 2062 have attachment parts for attaching the emergency power supply unit 52. For the attachment, a screwing structure, a rivet structure, an engagement structure, etc. can be used. Here, the screw 538 is used. The screw 538 is inserted from below through the through hole 526d (see FIG. 11) of the emergency power supply base 526 of the emergency power supply unit 52, the through hole 2302a of the extension part 2302 of the appliance main body 2003, and the through holes 2614b and 2624a of the fixtures 2061 and 2062, and then screwed to the nut 2068 on the back side of the through holes 2614b and 2624a. Thereby, the emergency power supply unit 52 is attached to the appliance main body 2003. The attachment part is composed of the through holes 2614b and 2624a and the nut 2068. The second wiring 2549 connecting the emergency power supply unit 52 and the terminal block 32 is inserted through a bush 2309 provided in the through hole of the appliance main body 2003. The fixture 2061 has a through hole 2614d for the bush 2309.

[0063] (2) Emergency light unit, etc. As shown in FIGS. 16 and 18, the emergency light unit 51, the inspection switch unit 56, and the battery unit 54 are attached to the extension portion 2302 of the instrument main body 2003 using the emergency light fixture 2050 and the fixture 2062.

[0064] (2-1) As shown in FIG. 18, the emergency light fixture 2050 has a light source support portion that supports the emergency light unit 51 and a light source fixing portion for fixing the emergency light unit 51 (emergency light fixture 2050) to the instrument main body 3. The emergency light fixture 2050 has a flat plate portion 2501 that extends in the longitudinal direction, an upper extension portion 2502 that extends upward from one end in the longitudinal direction of the flat plate portion 2501 (opposite side to the through hole 2301b (see FIG. 15)), and a horizontal extension portion 2503 that extends from the upper end of the upper extension portion 2502 to one end side in the longitudinal direction. Here, the light source support portion is constituted by the flat plate portion 2501, and the attachment portion is constituted by the through hole 2503a of the horizontal extension portion 2503.

[0065] The flat plate portion 2501 has through holes 2501b and 2501c into which the rod-shaped portions 515c and 512d of the emergency light unit 51 are fitted, and a screw hole 2501d for a screw 509 for fixing the emergency light unit 51 to the flat plate portion 2501. The emergency light fixture 2050 has a bent portion 2508 that bends upward from the end portion on the long side of the flat plate portion 2501. Thereby, the flat plate portion 501 is reinforced.

[0066] The flat plate portion 2501 has a through hole 2501a for the wiring 519 that connects the emergency light unit 51 and the emergency power unit 52. The through-hole 2501a is fitted with the upper side of the inspection switch unit 56, and in this state, the inspection switch unit 56 is attached to the flat plate portion 2501. For attachment, a screwing structure, a rivet structure, an engagement structure, etc. can be used, and here, the screw 569 is used. The screw 569 passes through the through-hole 565d of the inspection switch unit 56 and is screwed into the screw hole 2501e of the flat plate portion 2501. Note that the screw hole 2501e constitutes an attachment portion for attaching the inspection switch unit 56 to the emergency light fixture 2050.

[0067] The upper end of the upper extension portion 2502 and the horizontal extension portion 2503 are inclined so as to contact the extension portion 2302 of the instrument body 2003 when the flat plate portion 2051 is horizontal. The screw 2509 passes through the through-hole 2503a of the horizontal extension portion 2503. Note that the upper extension portion 2502 is provided with a through-hole 2502a for wiring (fixing the connector 548).

[0068] (2-2) Fixture As described above, the fixture 2062 has an attachment portion for attaching the emergency light fixture 2050 in addition to the contact portion 2621 and the attachment portion 2624a. For attachment, a screwing structure, a rivet structure, an engagement structure, etc. can be used, and here, the screw 2509 is used. The screw 2509 passes through the through-hole 2503a of the horizontal extension portion 2503 of the emergency light fixture 2050 and the through-hole 2302b of the extension portion 2302 of the instrument body 2003, and then is screwed into the screw hole 2624b of the fixture 2062. Thereby, the emergency light fixture 2050 is attached to the instrument body 2003. Note that the attachment portion is constituted by the screw hole 2624b.

[0069] (2-3) Battery unit The battery unit 54 is attached to the appliance main body 2003 using the emergency light fixture 2050. The emergency light fixture 2050 includes a flat plate portion 2504 on which the battery unit 54 is placed, an inner upper extension portion 2505 that extends upward from the other end side in the longitudinal direction of the flat plate portion 2504 and is connected to the lateral extension portion 2503, a bent portion 2506 that bends obliquely upward from the outer end in the short direction of the flat plate portion 2504, and an outer upper extension portion 2507 that extends upward from one end in the longitudinal direction of the bent portion 2506. That is, the inner upper extension portion 2505, the outer upper extension portion 2507, and the bent portion 2506 constitute a holding portion for holding the battery unit 54. The bent portion 2506 is substantially parallel to the extension portion 2302 of the appliance main body 2003, and the battery unit 54 can be taken out from the gap between the upper end of the bent portion 2506 and the appliance main body 2003 with the emergency lower cover 2057 removed. Also, with the emergency lower cover 2057 removed, the battery unit 54 can be inserted and removed in the short direction with respect to the holding portion. As a result, for example, when installing the lighting device Y, the emergency lower cover 2057 can be removed, and after connecting the connector 545 or the like, the battery unit 54 can be arranged, improving the operability during installation.

[0070] (3) Emergency lower cover As shown in FIGS. 16 and 19, the emergency lower cover 2057 is detachably attached to the lower cover fixtures 2058 and 2059 attached using a pair of fixtures 2061 spaced apart in the longitudinal direction.

[0071] (3-1) Emergency lower cover The emergency lower cover 2057 has a lower cover main body 2571 that is open at the top and has a rectangular parallelepiped shape elongated in the longitudinal direction. The bottom plate portion 2572 of the lower cover main body 2571 has a through hole 2572a for the lens portion 511a of the emergency light unit 51, a through hole 2572b for the display means 562 and the operation means 563 of the inspection switch unit 56, and a through hole for the screw 2579 for detachably attaching the emergency lower cover 2057. The through holes are provided at both ends in the longitudinal direction although not shown in FIG. 16 due to the screw 2579. The upper end of the lower cover body 2571 is inclined so as to contact the inclined extension portion 2302 of the appliance body 2003 when the bottom plate portion 2572 is in a horizontal state.

[0072] (3-2) Lower cover fixture As shown in FIG. 19, the lower cover fixtures 2058 and 2059 include lower horizontal extension portions 2581 and 2591 that extend in the horizontal direction, upper extension portions 2582 and 2592 that extend upward from the outer ends in the longitudinal direction of the lower horizontal extension portions 2581 and 2591, and upper horizontal extension portions 2583 and 2593 that extend in the horizontal direction from the upper ends of the upper extension portions 2582 and 2592. The upper ends of the upper extension portions 2582 and 2592 and the upper horizontal extension portions 2583 and 2593 are inclined so as to contact the inclined extension portion 2302 of the appliance body 2003 when the lower horizontal extension portions 2581 and 2591 extend in the horizontal direction. The upper horizontal extension portions 2583 and 2593 are located on the side where the lower horizontal extension portions 2581 and 2591 are present with respect to the upper extension portions 2582 and 2592. Thereby, the interval between the lower cover fixtures 2058 and 2059 can be shortened.

[0073] The upper horizontal extension portions 2583 and 2593 have attachment portions 2583a and 2593a for attaching the lower cover fixtures 2058 and 2059 to the appliance body 3. For attachment, a screwing structure, a rivet structure, and an engaging structure can be used. Here, screws 259 and 2599 are used, and the upper horizontal extension portions 2583 and 2593 have through holes as the attachment portions 2583a and 2593a. The lower horizontal extension portions 2581 and 2591 have attachment portions for detachably attaching the emergency lower cover 2057 to the lower cover fixtures 2058 and 2059. As shown in FIG. 16, screws 2579 are used for attachment. As shown in FIGS. 16 and 19, after the screws 2579 pass through the through holes in the bottom plate portion 2572 of the emergency lower cover 2057 and the through holes 2581a and 2591a in the lower horizontal extension portions 2581 and 2591 of the lower cover fixtures 2058 and 2059, they are screwed into nuts 2588 and 2598 provided on the back sides of the lower horizontal extension portions 2581 and 2591. Incidentally, as shown in Fig. 19, the lower cover fixture 2058 has a notch 2583b for a bush 2039 through which a second wiring 2549 connecting the terminal block 32 and the emergency power supply unit 52 is inserted.

[0074] (3-3) Fixture As described above, the fixture 2061 has, in addition to the contact portion 2611 and the mounting portion 2614b, a mounting portion for mounting the lower cover fixtures 2058 and 2059 as shown in Fig. 19. For the mounting, a screwing structure, a rivet structure, an engaging structure, etc. can be used, and here, screws 2589 and 2599 are used. The screws 2589 and 2599 are inserted through the through holes 2583a and 2593a in the upper horizontal extension portions 2583 and 2593 of the lower cover fixtures 2058 and 2059 and the through hole 2302c in the extension portion 2302 of the appliance body 2003, and then screwed into the screw holes 2614c of the fixture 2061. Thereby, the lower cover fixtures 2058 and 2059 are attached to the appliance body 2003. Incidentally, the mounting portion is constituted by the screw holes 2614c.

[0075] 3. Arrangement This will be described with reference to Fig. 20. Fig. 20 is an irregular cross-sectional view seen from above, showing the emergency power supply unit 52, the terminal block 32, and the normal power supply unit 12 of the lighting fixture 1.

[0076] The appliance body 2003 has a through hole 2301b for inserting an input wiring connected to a commercial power supply at the center 1C between the first end portion 1A which is one end in the longitudinal direction of the appliance body 2003 and the second end portion 1B which is the other end in the longitudinal direction. Also, the normal power supply unit 12 of the normal lighting fixture 1 is arranged between the first end portion 1A and the through hole 2301b, and the emergency power supply unit 52 of the emergency lighting fixture 2005 is arranged between the through hole 2301b and the second end portion 1B and adjacent to the appliance body 2003 in the short side direction. As a result, the normal power supply unit 12 and the emergency power supply unit 52 are positioned on both sides in the longitudinal direction with the through-hole 2301b therebetween, and it is possible to prevent the normal power supply unit 12 and the emergency power supply unit 52 from being crowded. Also, wiring interference can be prevented thereby. Further, due to the above-described arrangement, the center of gravity position of the lighting device Y becomes the position of "G2" in FIG. 20. In this way, the center of gravity is positioned between the pair of suspension bolts, and it is possible to prevent the load from being biased to one of the suspension bolts. Furthermore, since the emergency power supply unit 52 is shifted in the short-side direction with respect to the region (recess 2301) that holds the normal lighting fixture 1 in the appliance body 2003, it is easier to prevent wiring interference.

[0077] The terminal block 32 of the appliance body 2003 is connected to the input wiring introduced into the appliance body 2003 from the through-hole 2301b. The terminal block 32 is disposed between a virtual plane (a virtual plane passing through the first input connection port 123a of the normal power supply unit 12 and orthogonal to the longitudinal direction) 1D passing through the end on the through-hole 2301a side in the normal power supply unit 12 and orthogonal to the longitudinal direction, and a virtual plane (a virtual plane passing through the second input connection port 523a of the emergency power supply unit 52 and orthogonal to the longitudinal direction) 1E passing through the end on the through-hole 2301b side in the emergency power supply unit 52 and orthogonal to the longitudinal direction. Thereby, since the first wiring connecting the terminal block 32 and the normal power supply unit 12 and the second wiring 2549 connecting the terminal block 32 and the emergency power supply unit 52 can be shortened, it is possible to suppress the complication of the wiring. In FIG. 20, since the virtual planes 1D and 1E show the state of viewing the appliance body 3 from above, they are indicated by "lines". However, the virtual planes 1D and 1E are composed of planes extending vertically in the up-down direction of the appliance body 2003 when the appliance body 2003 is viewed from the short-side direction (see (a) of FIG. 13).

[0078] The second input connection port 523a for connecting to the second wiring 2549 in the emergency power supply unit 52 is arranged in the longitudinal direction so as to face the direction opposite to that of the second output connection port 323 for connecting to the second wiring 2549 for the emergency power supply unit 52 on the terminal block 32. Thereby, since the second wiring 2549 can be shortened, it is possible to suppress the complication of the wiring. Also, the connection of the second wiring 2549 can be easily performed. Also, similarly, as a configuration capable of shortening the second wiring 2549, there are also patterns in which either the second input connection port 523a or the second output connection port 323 is arranged to face the short side direction, and a pattern in which the second input connection port 523a and the second output connection port 323 are arranged to face the direction opposite to each other in the short side direction.

[0079] When the emergency lighting fixture 2005 includes the emergency power supply unit 52 which is a heavy object, it is provided with fixtures 2061, 2062 arranged on the upper surface of the appliance body 2003 and reinforcing the appliance body 2003, and the emergency power supply unit 52 is attached to the portion of the appliance body 2003 where the fixtures 2061, 2062 are arranged. Thereby, the appliance body of the lighting device without the emergency lighting fixture 5 can be used. Also, by using the fixtures 2061, 2062, the emergency power supply unit 52 can be attached only by providing the through holes for attachment in the appliance body 2003. Therefore, for example, even when the emergency power supply unit 52 is arranged in the extension part 302, the emergency power supply unit 52 can be provided without providing a notch part that deteriorates the mechanical characteristics of the extension part 302 or the appliance body 3. Note that when paying attention to the attachment of the emergency power supply unit 52, the terminal block 32, the length of the wiring, the position of the input wiring, etc. are not particularly limited.

[0080] The emergency lighting fixture 2005 includes an emergency light source unit 51, an emergency power supply unit 52, a fixture (e.g., the emergency light source fixture 2050) for attaching at least one of the emergency light source unit 51 and the emergency power supply unit 52 to the fixture body 2003, and a cover (e.g., the emergency lower cover 2057) for covering all of the emergency light source unit 51, the emergency power supply unit 52, and the fixture attached to the fixture body 2003 from below. Thereby, it is possible to achieve weight reduction while maintaining the design property, as compared with providing covers for separately covering the emergency light source unit 51 and the emergency power supply unit 52. Note that when focusing on the weight reduction of the emergency lighting fixture 2005, the terminal block 32, the length of the wiring, the position of the input wiring, the presence or absence of the fixtures 2061 and 2062, etc. are not particularly limited.

[0081] The emergency lighting fixture 2005 further includes an inspection switch unit 56 and a battery unit 54. The inspection switch unit 56 and the battery unit 54 are supported by the emergency light source fixture 2050 for attaching the emergency light source unit 51 to the fixture body 2003, and are covered by a cover (e.g., the emergency lower cover 2057). Thereby, it is possible to achieve weight reduction while maintaining the design property, as compared with providing covers for separately covering the inspection switch unit 56, the battery unit 54, and the emergency light source unit 51. In addition, since the emergency light source fixture 2050 has the emergency light source unit 51, the inspection switch unit 56, and the battery unit 54 provided on a single member, it is possible to reduce the number of parts as compared with the case of providing fixtures for attaching each unit, and contribute to the weight reduction of the emergency lighting fixture 2005. Note that when focusing on the weight reduction of the emergency lighting fixture 2005, the terminal block 32, the length of the wiring, the position of the input wiring, the presence or absence of the fixtures 2061 and 2062, etc. are not particularly limited. In addition, since the emergency light source fixtures 50 and 2050 are fixed to the extension portions 302 and 2302, heat generated from the emergency light source unit 51 or the battery unit 54 can be dissipated to the extension portions 302 and 2302 through the emergency light source fixtures 50 and 2050, so that the heat dissipation effect can be enhanced.

[0082] Although the first and second embodiments have been described above, the present invention is not limited to these embodiments, and for example, the following modifications may be made. Further, combinations of an embodiment, a modification, and other modifications may also be made. In addition, examples not described in the embodiments or modifications, and design changes within the scope not departing from the gist of the invention are also included in the present invention.

[0083] <Modification Example> 1. Lighting Device The lighting devices X and Y removably provided the regular lighting fixture 1 on the fixture main bodies 3 and 2003, but the regular lighting fixture 1 may be fixed to the fixture main body 2003, and the emergency lighting fixtures 5 and 2005 may be attached to the fixture main bodies 3 and 2003. The regular power supply unit 12 was arranged between the through holes 301a and 2301a for suspension bolts on the first end side and the through holes 301b and 2301b, but it may be arranged between the first end and the through holes 301a and 2301a for suspension bolts. The lighting devices X and Y were provided with fixtures 61, 62, 555, 2061, and 2062 for fixing the emergency lighting fixtures 5 and 2005 to the fixture main bodies 3 and 2003, but if the mechanical characteristics of the portion of the fixture main bodies 3 and 2003 where the emergency lighting fixtures 5 and 2005 are attached are sufficient, the fixtures 61, 62, 555, 2061, and 2062 may not be provided. The lighting devices X and Y are provided with the emergency lighting fixtures 5 and 2005 in a non-removable manner on the fixture main bodies 3 and 2003, but they may be provided in a removable manner. The overall centers of gravity G1 and G2 of the lighting devices X and Y may be between the pair of through holes 301a and 2301a in the fixture main bodies 3 and 2003 (between the virtual lines extending in the short direction passing through the centers of the through holes) when viewed from above the devices, and may be at positions other than those shown in FIGS. 12 and 20.

[0084] 2. Fixture Main Body The extension portions 302 and 2302 were inclined downward or upward, but may extend in a direction orthogonal to the main light emission direction. The through holes 301b and 2301b for input wiring were provided in the bottom plate portions 311 and 2311, but may be provided in the side plate portions 313 and 2313. The terminal block 32 had an input connection port 321 facing the other side in the longitudinal direction and output connection ports 322 and 323 facing one side in the longitudinal direction, respectively. However, the connection ports 321, 322, and 323 may face one side and the other side in the short direction. Also, one of the input connection port 321 and the output connection ports 322 and 323 may be provided on the side surface of the main body 320, and the other may be provided on the bottom surface (lower surface) of the main body 320. The terminal block 32 was provided on the bottom plate portions 311 and 2311, but may be provided on the side plate portions 313 and 2313. Further, the terminal block 32 may be configured to be disposed on the flat portion 100 of the normal light source base 10. There were two sets (for two units) of the output connection ports 322 and 323 of the terminal block 32, but there may be three or more sets. Also, a plurality of terminal blocks 32 having two sets of output connection ports 322 and 323 may be provided. The normal power supply unit 12 may be connected to one of the output connection ports 322 of the first unit, the input connection port 321 of the second terminal block 32 may be connected to the other output connection port 323 of the first unit, the emergency power supply unit 52 may be connected to one of the output connection ports 323 of the second unit, and the feed wiring to another lighting device may be connected to the other output connection port 322 of the second unit.

[0085] 3. Emergency lighting fixture The light source unit 51, the power supply unit 52, the battery unit 54, and the inspection switch unit 56 were arranged on one side in the short direction with respect to the normal lighting fixture 1. However, for example, one or more of these may be arranged on the other side in the short direction. The emergency lighting fixture 5,2005 had an inspection switch unit 56, but it may not have one. The light source unit 51 and the inspection switch unit 56 were arranged adjacent to each other. However, for example, the light source unit 51 may be arranged on one side in the short direction, and the inspection switch unit 56 may be arranged on the other side in the short direction, respectively.

[0086] 4. Fixture The fixtures 61, 62, 2061, and 2062 are fixed to the bottom plate portions 311, 2311 of the instrument-side bases 30, 2030 by inserting through the through holes 612b, 622b, 2612b, 2622b and the through holes 301i, 2301i of the instrument main bodies 3, 2003 using rivets 69, 2069. However, the fixtures 61, 62, 2061, and 2062 may be fixed to the side plate portions 313, 2313 of the instrument main bodies 3, 2003 or to the extending portions 302, 2302 of the instrument main bodies 33, 2003 by a screw structure, a rivet structure, or an engaging structure. Further, they may be fixed to the side plate portions 313, 2313 or to the extending portions 302, 2302 without being fixed to the bottom plate portions 311, 2311. They may also be fixed to both the side plate portions 313, 2313 and the extending portions 302, 2302 without being fixed to the bottom plate portions 311, 2311.

[0087] The fixtures 61, 62, 2061, and 2062 have bottom plate facing portions 612, 622, 2612, 2622, side plate facing portions 613, 623, 2613, 2623, and extending facing portions 614, 624, 2614, 2624. However, it is only necessary that they can be fixed to the instrument main bodies 3, 2003. For example, they may not have the bottom plate facing portions 612, 622, 2612, 2622, may not have the side plate facing portions 613, 623, 2613, 2623, or may not have the extending facing portions 614, 624, 2614, 2624. Also, the fixtures 61, 62, 2061, and 2062 may have a pair of side plate facing portions 613, 623, 2613, 2623 in the short direction or may have a pair of extending facing portions 614, 624, 2614, 2624 in the short direction.

[0088] The fixtures 61, 62, 2061, and 2062 are in contact with the instrument main bodies 3, 2003 at the bottom plate facing portions 612, 622, 2612, 2622, the side plate facing portions 613, 623, 2613, 2623, and the extending facing portions 614, 624, 2614, 2624. However, it may contact at least one of the side plate facing portions 613, 623, 2613, 2623 and the extending facing portions 614, 624, 2614, 2624 without contacting the bottom plate facing portions 612, 622, 2612, 2622, or it may contact at least one of the bottom plate facing portions 612, 622, 2612, 2622 and the extending facing portions 614, 624, 2614, 2624 without contacting the side plate facing portions 613, 623, 2613, 2623, or it may contact at least one of the side plate facing portions 613, 623, 2613, 2623 and the bottom plate facing portions 612, 622, 2612, 2622 without contacting the extending facing portions 614, 624, 2614, 2624, or it may contact at another portion without contacting the bottom plate facing portions 612, 622, 2612, 2622, the side plate facing portions 613, 623, 2613, 2623, and the extending facing portions 614, 624, 2614, 2624.

[0089] <Others> 1. Mounting of Emergency Lighting Fixtures The lighting device in the background art provides a notch substantially the same size as the emergency light source unit on the inclined plate to arrange the emergency light source unit in the short direction (see FIG. 18 of Patent Document 1). In this case, the rigidity of the inclined plate and the appliance body may be reduced due to the notch. The lighting device (X, Y) that solves this problem includes an appliance body (3, 2003), an emergency lighting fixture (5, 2005), and fixtures (61, 62, 555, 2061, 2062) arranged on the upper surface of the appliance body (3, 2003). The emergency lighting fixture (5, 2005) is attached to a portion of the appliance body (3, 2003) where the fixtures (61, 62, 555, 2061, 2062) are arranged. Thereby, the emergency lighting fixture (5, 2005) can be attached only by providing a through hole for attachment of the emergency lighting fixture (5, 2005) in the appliance body (3, 2003). Therefore, the emergency lighting fixture (5, 2005) can be attached to the appliance body (3, 2003) without providing a notch or the like that reduces the mechanical properties in the extending portion (inclined plate).

[0090] 2. Heat Dissipation of Battery Unit In an illumination device provided with a rechargeable battery, there is a problem that the heat dissipation of the battery is desired to be enhanced. An illumination device (X) for solving this problem includes an appliance body (3), a lamp unit (5) provided with a rechargeable battery (54), and fixtures (61, 62, 555) for fixing the lamp unit (5) to the appliance body (3). The lamp unit (5) includes a light source unit (51) and a power supply unit (52). The battery (54) is placed on a fixture (61) that fixes the light source unit (51) or the power supply unit (52) to the appliance body (3). The fixture (61) is composed of a metal plate and is fixed to the appliance body (3) in a state of surface contact with the appliance body (3). Thereby, the heat from the battery (54) is transmitted from the fixture (61) to the appliance body (3).

[0091] 3. Attachment of Units In an illumination device in which a light source unit and a power supply unit are attached to an extension portion of an appliance body, there is a problem that it is desired to reduce the number of parts while achieving weight reduction. An illumination device (Y) for solving this problem includes an appliance body (2003), a light source unit (51), a power supply unit (52), a cover (2057), a light source unit fixture (2050), cover fixtures (2058, 2059), a pair of first fixtures (2061), and a second fixture (2062). The first and second fixtures (2061, 2062) are attached to the upper surface of the appliance body (2003) such that the second fixture (2062) is positioned between the pair of first fixtures (2061). A pair of power supply units (52) are attached to a part of the appliance body (2003) where one of the pair of first fixtures (2062) and the second fixture (2062) are provided. The light source unit fixture (2050) is attached to a part of the appliance body (2003) where the second fixture (2062) is provided in a state of supporting the light source unit (51) below the power supply unit (52). The cover fixtures (2058, 2059) are attached to parts of the appliance body (2003) where the pair of first fixtures (2061) are provided. The cover (2057) is detachably attached to the cover fixtures (2058, 2059) in a state of covering the light source unit (51) and the power supply unit (52) from below. According to this configuration, the first and second fixtures (2061, 2062) can reduce the weight of the instrument body (2003), and the number of fixtures can be reduced compared to the case where the light source unit (51), the power supply unit (52), and the cover (2057) are individually attached by fixtures.

[0092] 4. Center of gravity of the lighting device A lighting device that includes a regular lighting fixture and an emergency lighting fixture on the instrument body and is attached to the installation surface via a suspension bolt is heavier than a lighting device that does not include an emergency lighting fixture, and there is a problem that an excessive load may act on the suspension bolt. A long lighting device (X, Y) that solves this problem includes an instrument body (3, 2003), a regular lighting fixture (1), and an emergency lighting fixture (5, 2005). The instrument body (3, 2003) has through holes (301a, 2301a) for suspension bolts at intervals in the longitudinal direction. When the lighting device (X, Y) is viewed from above, the position of the center of gravity is above the regular lighting fixture (1) and exists between a pair of through holes (301, 2301a). This can prevent the load from being biased to one of the suspension bolts.

Explanation of symbols

[0093] X Lighting device 1 Regular lighting fixture 3 Instrument body 5 Emergency lighting fixture 10 Regular light source base 11 Regular light source unit 12 Regular power supply unit 30 Instrument side base 33 Terminal block 51 Emergency light source unit 52 Emergency power supply unit 54 Battery unit

Claims

1. A long and narrow instrument body, A normal lighting fixture having a normal power supply unit, An emergency lighting fixture having an emergency power supply unit are provided, The instrument body has a through hole for inserting an input wiring for receiving commercial power at the center between a first end which is one end in the longitudinal direction and a second end which is the other end in the longitudinal direction, The normal power supply unit is arranged between the first end and the through hole, The emergency lighting fixture is arranged between the second end and the through hole and adjacent to the instrument body in the lateral direction, The instrument body includes a terminal block for connecting to the input wiring, The normal power supply unit is configured to be connectable to the terminal block via a first wiring, The emergency power supply unit is configured to be connectable to the terminal block via a second wiring, The terminal block is arranged between a virtual plane passing through the end portion on the through hole side in the normal power supply unit and orthogonal to the longitudinal direction and a virtual plane passing through the end portion on the through hole side in the emergency power supply unit and orthogonal to the longitudinal direction, The terminal block has a second output connection port for connecting to the second wiring, The emergency power supply unit has a second input connection port for connecting to the second wiring, The second input connection port and the second output connection port are arranged at positions shifted in the lateral direction and face each other in the longitudinal direction, The instrument body has a second through hole for inserting the second wiring between a virtual plane passing through the second output connection port of the terminal block and orthogonal to the longitudinal direction and a virtual plane passing through the second input connection port of the emergency power supply unit and orthogonal to the longitudinal direction, A lighting device.

2. It has a fixture for fixing the emergency lighting fixture to the instrument body, The fixture has a fixture-side attachment portion attached to the instrument body side, a power supply-side attachment portion attached to the power supply support body side that supports the emergency power supply unit, and a stepped portion between the fixture-side attachment portion and the power supply-side attachment portion, The stepped portion is arranged to face or abut against the instrument body, The lighting device according to Claim 1.

3. It includes a fixture for fixing the emergency lighting fixture to the instrument body, The instrument body has a raised portion around a through hole for a suspension bolt for attachment to an installation surface, The fixture has a contact portion that contacts the instrument body, The contact portion has a notch portion in a shape corresponding to the raised portion, The lighting device according to Claim 1.

4. The emergency lamp has an emergency light source unit and a battery unit, wherein the battery unit is removably held by an emergency light fixture that attaches the emergency light source unit to the appliance body. The lighting device according to any one of claims 1 to 3.

5. The appliance body has a recess into which the normal lamp fits and an extension extending in the short direction from the open-side end of the recess, and the emergency light fixture is attached to the extension. The lighting device according to claim 4.

Images