Emergency lighting devices and lighting equipment

Abstract

To provide an emergency lighting device which inhibits increase of the number of components while having a waterproof function.SOLUTION: An emergency lighting device 3 includes: an emergency light source unit 4; a control device 6; a housing 5; and an operation gasket 55. The control device 6 has a first push button switch 611 and a display element 613. The housing 5 has a first operation hole 502 and a display hole 503. The operation gasket 55 is attached to the housing 5 so as to close the first operation hole 502 and the display hole 503. The operation gasket 55 has: a seal part 550; a first operation part 551; and a transmission part 553 which transmits light of the display element 613. The seal part 550, the first operation part 551, and the transmission part 553 are integrally formed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an emergency lighting device and a lighting fixture, and more particularly to an emergency lighting device that provides emergency lighting, and a lighting fixture including the emergency lighting device. [Background technology]

[0002] As a conventional example, the lighting fixture described in Patent Document 1 is exemplified. This conventional example includes a fixture body, a normal light source unit for normal lighting, and an emergency lighting device for emergency lighting. The fixture body is formed in a long rectangular box shape with an opening on the bottom. The normal light source unit includes a plurality of LED modules, a mounting member to which each LED module is attached, a cover attached to the mounting member so as to cover each LED module, and a power supply device that lights up each LED module. The normal light source unit is housed in the fixture body so that the cover is exposed from the bottom of the fixture body.

[0003] The emergency lighting device includes an emergency light source unit and a control device. The emergency light source unit includes an LED module, a lens, a cover, an emergency power source (storage battery), etc. The lens is disposed in front of the LED module. The cover is disposed in front of the LED module so as to expose the lens forward. The emergency power source is disposed behind the LED module. The control device includes a charging circuit that charges the emergency power source with power supplied from the normal power source, and an emergency power source circuit that uses the emergency power source as a power source to light up the LED module when the normal power source is interrupted. The control device also includes a control circuit that receives an operation input from an inspection switch and performs an inspection operation. The normal power source is, for example, a power source (commercial AC power source) that supplies power to a power source device of the normal light source unit. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-134208 A Summary of the Invention [Problem to be solved by the invention]

[0005] When an emergency lighting device is installed in a humid space or outdoors or on the roof where it is exposed to rainwater, it is necessary to waterproof the emergency lighting device. Also, when a light receiving element is housed in the housing of the emergency lighting device, it is sometimes desirable to make it difficult for the light received by the light receiving element to be attenuated.

[0006] An object of the present invention is to provide an emergency lighting device and a lighting fixture that have a waterproof function and can make the light received by the light receiving element less susceptible to attenuation. [Means for solving the problem]

[0007] The emergency lighting device according to one aspect of the present invention includes an emergency light source unit having a light source and a lens facing the light source, a control device having a light receiving element that turns on the emergency light source unit and receives a control signal related to an inspection operation from the outside using infrared rays as a communication medium, a housing that houses the emergency light source unit and the control device, a transmission part that is arranged facing the light receiving element in a manner that seals the housing and transmits the control signal using infrared rays as a communication medium, and a seal part. The housing has a window through which the lens body of the lens is inserted to expose the lens body to the outside, and a hole that is separate from the window and is provided at a position facing the light receiving element. The seal part prevents water from entering the housing through the hole. The seal part and the transmission part are formed as a single unit and are attached to the housing so as to block the hole. The control device further includes a push button switch for receiving an operational input, and a display element that emits light for display. An operation unit for pressing the push button switch is further provided. The housing has a first hole at a position facing the push button switch, and a second hole as the hole at a position facing the display element and the light receiving element. The transmission unit transmits light from the display element. The operation unit and the transmission unit are formed integrally, and are attached to the housing so as to cover the first hole and the second hole. According to another aspect of the present invention, an emergency lighting device includes an emergency light source unit having a light source and a lens facing the light source, a control device having a light receiving element that turns on the emergency light source unit and receives a control signal related to an inspection operation from the outside using infrared rays as a communication medium, a housing that houses the emergency light source unit and the control device, a transmission part that is arranged facing the light receiving element in a manner that seals the housing and transmits the control signal using infrared rays as a communication medium, and a seal part. The housing has a window through which the lens body of the lens is inserted and exposes the lens body to the outside, and a hole that is separate from the window and is provided at a position facing the light receiving element. The seal part prevents water from entering the housing through the hole. The seal part and the transmission part are formed integrally and are attached to the housing so as to close the hole. The transmission part has a thickness dimension in the arrangement direction in which the light receiving element and the transmission part are arranged, which is thinner than the thickness dimension of the seal part. The seal part has one surface that faces the inner surface of the housing. The transmitting portion is flush with the one surface of the sealing portion. According to yet another aspect of the present invention, an emergency lighting device includes an emergency light source unit having a light source and a lens facing the light source, a control device having a light receiving element that turns on the emergency light source unit and receives a control signal related to an inspection operation from the outside using infrared rays as a communication medium, a housing that houses the emergency light source unit and the control device, a transmission part that is arranged facing the light receiving element in a manner that seals the housing and transmits the control signal using infrared rays as a communication medium, and a seal part. The housing has a window through which the lens body of the lens is inserted and exposes the lens body to the outside, and a hole that is separate from the window and is provided at a position facing the light receiving element. The seal part prevents water from entering the housing through the hole. The seal part and the transmission part are formed integrally and are attached to the housing so as to close the hole. The transmission part has a thickness dimension in the arrangement direction in which the light receiving element and the transmission part are arranged, which is thinner than the thickness dimension of the seal part. The seal part has one surface that faces the inner surface of the housing. The transmitting portion is disposed at a recessed position at a predetermined distance from the one surface of the sealing portion.

[0008] The lighting fixture according to one aspect of the present invention comprises: Either The device comprises an emergency lighting device and a fixture body that supports the emergency lighting device. Effect of the Invention

[0009] The emergency lighting device and lighting fixture of the present invention have the advantage of being able to make it difficult for the light received by the light receiving element to be attenuated while having a waterproof function. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a cross-sectional view of an emergency lighting device according to one embodiment of the present invention. [Diagram 2] Fig. 2A is a perspective view of an operation gasket in the emergency lighting device of the same as above, Fig. 2B is a perspective view of the operation gasket in the same as above as below, and Fig. 2C is a cross-sectional view of the operation gasket in the same as above. [Diagram 3] FIG. 3 is a perspective view of the emergency lighting device as viewed from below. [Figure 4] FIG. 4 is a front view of the emergency lighting device. [Diagram 5] FIG. 5 is a side view of the emergency lighting device. [Figure 6] FIG. 6 is a side view of the emergency lighting device. [Figure 7] FIG. 7 is a perspective view of a lighting fixture according to one embodiment of the present invention. [Figure 8] FIG. 8 is an exploded perspective view of the above lighting fixture. [Figure 9] FIG. 9 is an exploded perspective view of the lighting fixture of the above embodiment, omitting the regular lighting device. [Figure 10] FIG. 10 is a cross-sectional perspective view of a main part of the lighting fixture. [Figure 11] FIG. 11 is an exploded perspective view of the emergency lighting device as viewed from below. [Figure 12] FIG. 12 is an exploded perspective view of the emergency lighting device as viewed from above. [Figure 13] FIG. 13 is a vertical cross-sectional view of the emergency lighting device. [Figure 14] FIG. 14 is an exploded perspective view of an emergency light source unit and a control device in the emergency lighting device of the above embodiment. [Figure 15] FIG. 15 is a plan view of a main part including a first housing of the emergency lighting device. [Figure 16] FIG. 16 is a perspective view of the first gasket in the emergency lighting device as viewed from below. [Figure 17] FIG. 17 is a perspective view of the first gasket in the emergency lighting device as viewed from above. [Figure 18] FIG. 18 is a perspective view of the lighting fixture from which the regular lighting device is removed, as viewed from the longitudinal direction. [Figure 19] FIG. 19 is a cross-sectional view of the main part of the lighting fixture with the normal lighting device removed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] (1) Overview The configuration described below is merely one example of the present invention, and the present invention is not limited to the configuration described below. Various modifications are possible depending on the design, etc., even if the configuration is other than the configuration described below, as long as they do not deviate from the technical idea of ​​the present invention.

[0012] The lighting fixture 1 of this embodiment is a direct-attached lighting fixture that is directly attached to, for example, the ceiling of an open corridor in an apartment building, the eaves of an outdoor bicycle parking lot, the eaves of a truck yard in a warehouse, or the ceiling of a humid food factory. However, the lighting fixture 1 may be a recessed lighting fixture or a lighting fixture that is attached to a wall. The lighting fixture 1 includes at least an emergency lighting device 3 that provides emergency lighting, and a fixture body 10 that supports the emergency lighting device 3. In this embodiment, the lighting fixture 1 further includes, for example, a regular lighting device 2 that provides regular lighting, and an emergency power supply unit 9 that supplies power to the emergency lighting device 3.

[0013] Here, as shown in FIG. 1, the emergency lighting device 3 includes an emergency light source unit 4 (see FIG. 11), a control device 6 that turns on the emergency light source unit 4, a housing 5 that houses the emergency light source unit 4 and the control device 6, and an operation gasket 55 (sealing device). The control device 6 has a push button switch (two push button switches in this embodiment) for receiving an operation input, and a display element 613 that emits light for display. However, the control device 6 may have only one of the two push button switches. Hereinafter, the two push button switches are referred to as a "first push button switch 611" and a "second push button switch 612."

[0014] The housing 5 has a first hole, a second hole (display hole 503), and a third hole. The first hole is located opposite either the first push button switch 611 or the second push button switch 612. The second hole is located opposite the display element 613. The third hole is located opposite the other of the first push button switch 611 or the second push button switch 612. When the control device 6 has only either the first push button switch 611 or the second push button switch 612, the housing 5 may have only the corresponding one of the first hole and the third hole.

[0015] In the following description, it is assumed that the "first hole" corresponds to the first operation hole 502 facing the first push button switch 611, and is connected to the display hole 503, which is the "second hole", to form one hole. In addition, it is assumed that the "third hole" corresponds to the second operation hole 504 facing the second push button switch 612. However, this is not limited, and the "first hole" may correspond to the second operation hole 504, and the "third hole" may correspond to the first operation hole 502. In this case, the "first hole" does not have to be connected to the display hole 503, which is the "second hole".

[0016] In this embodiment, the operation gasket 55 is attached to the housing 5 so as to cover the first to third holes. The operation gasket 55 has a seal portion 550 that prevents water from entering the housing 5 from the first to third holes, an operation portion for pressing the push button switch, and a transmission portion 553 that transmits light from the display element 613. In this embodiment, as an example, the control device 6 has two push button switches (a first push button switch 611 and a second push button switch 612), and therefore the operation gasket 55 has two operation portions (a first operation portion 551 and a second operation portion 552).

[0017] The seal portion 550, the first operation portion 551, the second operation portion 552 and the transmission portion 553 are all integrally formed. The operation gasket 55 is, for example, a single molded product made of silicone rubber.

[0018] According to this configuration, operation gasket 55 not only has a waterproof function, but also has a function of pressing first push button switch 611 and second push button switch 612, and a function of transmitting light from display element 613. Therefore, an increase in the number of parts can be suppressed.

[0019] (2) Details (2.1) Overall Structure The lighting fixture 1 of this embodiment will be described in detail below with reference to the drawings. As described in the section "(1) Overview", the lighting fixture 1 of this embodiment includes a normal lighting device 2 that provides normal lighting, an emergency lighting device 3 that provides emergency lighting, and a fixture body 10 that houses the normal lighting device 2 and the emergency lighting device 3 (see Figs. 7 to 9). Furthermore, the lighting fixture 1 includes an emergency power supply unit 9 that supplies power to the emergency lighting device 3. In the following description, unless otherwise specified, the up-down, left-right, and front-rear directions of the lighting fixture 1 are defined in the orientation shown in Fig. 7.

[0020] In the following, a "user" refers to, for example, a person who works at the location where lighting fixture 1 is installed or the owner of lighting fixture 1, that is, a person who does not specialize in inspection work. On the other hand, an "inspection worker" refers to, for example, a worker who specializes in regular inspection work.

[0021] (2.2) Device body The fixture body 10 has a long rectangular flat top plate 11 and a pair of first side plates 12 protruding downward from each of two edges along the longitudinal direction (left-right direction) of the top plate 11. The fixture body 10 further has a pair of second side plates 13 protruding downward from each of two edges along the short side direction (front-back direction) of the top plate 11, and a pair of reflecting plates 14 protruding obliquely downward from the lower end of each of the first side plates 12. That is, the fixture body 10 is formed in a rectangular box shape having an opening on the lower surface facing the top plate 11. The top plate 11 has a hole for passing an electric wire at approximately the center in the left-right direction. The top plate 11 also has a hole 111 for passing a hanging bolt (see FIG. 8). In addition, an attachment piece 130 protruding parallel to the top plate 11 is provided at the lower end of each second side plate 13 (see FIG. 9). Each mounting piece 130 is provided with a screw hole (female thread) 131 .

[0022] (2.3) Regular lighting equipment As shown in Figures 8 and 10, the general-purpose lighting device 2 comprises an LED module 20, a support plate 21 that supports the LED module 20, a case 22 that houses the support plate 21 supporting the LED module 20, a power supply unit, two fixing devices 23, and two mounting devices 24.

[0023] The LED module 20 includes a substrate (printed wiring board) 200 formed in a rectangular plate shape elongated in the left-right direction, and a plurality of LEDs (Light Emitting Diodes) 201 mounted on the lower surface of the substrate 200. The plurality of LEDs 201 are mounted so as to be aligned at regular intervals along the longitudinal direction of the substrate 200 (see FIG. 10). The plurality of LEDs 201 are electrically connected in series via a conductor (copper foil) formed on the substrate 200. The conductor formed on the substrate 200 is electrically connected to an output terminal of a power supply device via a connector mounted on the substrate 200 and an electric wire electrically connected to the connector.

[0024] The support plate 21 is formed into a box shape by bending a metal plate (see FIG. 10). That is, the support plate 21 has a bottom plate 210 formed into a long rectangular plate shape, and a pair of side plates rising upward along the longitudinal direction from both ends in the short side direction (front-rear direction) of the bottom plate 210. The LED module 20 is attached to the lower surface of the bottom plate 210 (see FIG. 10).

[0025] The power supply device is configured to convert AC power supplied from a regular power source (for example, a commercial AC power source) into DC power and supply the converted DC power to the LED module 20 to light up the LED module 20. The power supply device is attached to the upper surface of the bottom plate 210 of the support plate 21. The LED module 20 and the power supply device are electrically connected by an electric wire inserted into an insertion hole provided in the bottom plate 210.

[0026] The case 22 has a case body 220, two end members 221, and two gaskets (fixing seals) 222 (see Figs. 8 and 10). The case body 220 is made of a synthetic resin material and has a long cylindrical shape with both ends in the longitudinal direction open, and is configured to accommodate the LED module 20 and the support plate 21 therein (see Fig. 10). The support plate 21 is fixed to the case body 220 by two fasteners 23.

[0027] As shown in FIG. 8 and FIG. 10, the end member 221 has a first bottom wall 2210, a second bottom wall 2211, an outer peripheral wall 2212, an inner peripheral wall 2213, and a cover portion 2214. The first bottom wall 2210 is formed in the same shape as the cross-sectional shape parallel to the front-rear direction and the up-down direction of the case main body 220. The second bottom wall 2211 is formed in an approximately semicircular plate shape. The outer peripheral wall 2212 is formed in a cylindrical shape protruding from the periphery of the first bottom wall 2210 all around. The inner peripheral wall 2213 is formed in a cylindrical shape protruding from the first bottom wall 2210 facing the outer peripheral wall 2212. The cover portion 2214 protrudes in the thickness direction of the second bottom wall 2211 from an arc-shaped portion of the periphery of the second bottom wall 2211, and is formed in a shape whose surface is the same curved surface (approximately a semicylindrical surface) as the surface of the outer peripheral wall 2212 (see FIG. 8). A cylindrical recess 2215 is provided in the center of the lower surface of the cover portion 2214 (see FIG. 8). Furthermore, a circular hole 2216 is formed in the bottom wall of the recess 2215 (see FIG. 10).

[0028] The gasket 222 is made of an elastic material such as silicone resin and is formed in a shape (cylindrical) similar to the outer peripheral wall 2212 and the inner peripheral wall 2213 of the end member 221. The gasket 222 is press-fitted into a space surrounded by the first bottom wall 2210, the outer peripheral wall 2212, and the inner peripheral wall 2213 of the end member 221. Furthermore, the gasket 222 is provided with a groove 2220 around the entire circumference on the surfaces exposed from the tips of the outer peripheral wall 2212 and the inner peripheral wall 2213. The end of the case body 220 in the longitudinal direction is press-fitted into this groove 2220 (see FIG. 10). That is, the end member 221 and the case body 220 are sealed by the gasket 222, and intrusion of water (rainwater, etc.) into the case body 220 is suppressed.

[0029] The fixture 23 has a fixing piece 230, a pair of mounting pieces 231, and a pair of side walls 232 (see FIG. 10). However, the two fixtures 23 have the same structure. The fixing piece 230 is formed in a rectangular flat plate shape. The pair of mounting pieces 231 are rectangular flat plate shapes and are provided so as to protrude downward from the front end and rear end of the fixing piece 230. The pair of side walls 232 are rectangular flat plate shapes and are provided so as to protrude downward from the left end and right end of the fixing piece 230. One fixture 23 is attached to the left end of the upper surface of the support plate 21. The other fixture 23 is attached to the right end of the upper surface of the support plate 21. When each fixture 23 is housed in the case body 220, the fixing piece 230 and the case body 220 are screwed together to fix the support plate 21 to the case body 220.

[0030] As shown in Fig. 10, the mounting fixture 24 has a first fixing portion 240, a second fixing portion 241, and a connecting portion 242 that connects the first fixing portion 240 and the second fixing portion 241. The first fixing portion 240, the second fixing portion 241, and the connecting portion 242 are integrally formed by processing a metal plate. However, the two mounting fixtures 24 all have the same structure. The second fixing portion 241 has an elongated screw insertion hole 243 at approximately the center in the front-rear direction (see Fig. 10). The first fixing portion 240 of the mounting fixture 24 is screwed to the fixing piece 230 of the fixture 23 from outside the case 22.

[0031] (2.4) Emergency power supply unit As shown in Figs. 8 and 9, the emergency power supply unit 9 has a plurality of dry cell type storage batteries, a battery case 90 that houses the plurality of storage batteries, an electric cable drawn from the battery case 90, and a fixing bracket 91 that fixes the battery case 90 to the appliance body 10. The battery case 90 is formed in a cylindrical shape with an oval shape in a cross section perpendicular to the axial direction. Each storage battery is, for example, a dry cell type nickel-metal hydride battery. The plurality of storage batteries are housed in the battery case 90 so that their axial direction is aligned with the axial direction of the battery case 90. The storage batteries are electrically connected in series by a plurality of terminal plates. The electric cable has a first electric wire electrically connected to one end (positive electrode) of the series circuit of the plurality of storage batteries and a second electric wire electrically connected to the other end (negative electrode) of the series circuit of the plurality of storage batteries. A connector is provided at the tip of the electric cable. The fixing bracket 91 is formed in a box shape by a metal plate. The fixing metal fitting 91 is fixed to the lower surface of the top plate 11 of the device body 10 in a state in which it encases and holds the battery case 90 (see Figs. 8 and 9).

[0032] (2.5) Emergency lighting equipment Next, the emergency lighting device 3 of this embodiment will be described in detail with reference to Figures 1 to 6 and Figures 11 to 19. In the following description, unless otherwise specified, the up / down, left / right, and front / rear directions of the emergency lighting device 3 are defined in the orientation shown in Figure 12.

[0033] 11 and 12, the emergency lighting device 3 includes an emergency light source unit 4, a support member 7 that supports the emergency light source unit 4, a control device 6 that turns on the emergency light source unit 4, and a housing 5 that houses the emergency light source unit 4, the support member 7, and the control device 6. The emergency lighting device 3 further includes an operation gasket 55, a first gasket 53, and a second gasket 54. The operation gasket 55 will be described in detail in the next section "(2.6) Operation Gasket."

[0034] As shown in Figs. 13 and 14, the emergency light source unit 4 has an LED module 40, a holder 41, a pair of terminal boards 42, a heat dissipation sheet 43, and a lens 44. The LED module 40 is configured by mounting at least one LED chip at the center of a rectangular flat mounting board 400. The LED chip is preferably a blue light-emitting diode that emits blue light. The mounting surface (lower surface) of the mounting board 400 including the LED chip is sealed with a sealing resin 401 mixed with a fluorescent material that converts the wavelength of the blue light emitted from the LED chip (see Fig. 14). Furthermore, the mounting board 400 has electrodes on the lower surfaces of a pair of corners located diagonally opposite each other. One electrode is electrically connected to the cathode of the LED chip, and the other electrode is electrically connected to the anode of the LED chip. Furthermore, these two electrodes are electrically connected to the corresponding terminal boards 42 of the pair of terminal boards 42.

[0035] Lens 44 is made of, for example, glass, and has lens body 440 and annular outer flange 441 protruding outward from the periphery of lens body 440 (see FIG. 14). Lens 44 has aspheric entrance surface 442 and exit surface 443 (see FIG. 13), and is preferably a wide-angle light distribution lens that realizes a so-called batwing-shaped light distribution characteristic. However, lens 44 may be formed of a synthetic resin material (such as polycarbonate resin) in which glass fiber is mixed to improve heat resistance (flame retardancy).

[0036] The heat dissipation sheet 43 is preferably made of a sheet material made of silicone resin having high thermal conductivity, electrical insulation properties, and flame retardancy. The heat dissipation sheet 43 is in contact with the upper surface of the mounting substrate 400 of the LED module 40 (see FIG. 13).

[0037] Holder 41 is preferably made of a synthetic resin material such as polycarbonate resin and is formed in a roughly diamond shape when viewed from above and below (see FIG. 14). Holder 41 holds LED module 40 and lens 44 by overlapping lens body 440 of lens 44 on the light emitting surface (lower surface) of LED module 40. Holder 41 also has terminal board holding portion 410. Terminal board holding portion 410 is formed in a rectangular tube shape extending upward, and holds a pair of terminal boards 42 housed therein (see FIGS. 13 and 14).

[0038] As shown in Fig. 14, the control device 6 includes a first circuit block 60, a second circuit block 61, and a case 62. The first circuit block 60 includes a rectangular first printed wiring board 600, a plurality of types of electronic components 601, a receiving connector 64, an input terminal block 603, an output connector 602, and a first connector 604. Among the plurality of types of electronic components 601, electronic components 601 with leads are inserted and mounted on the lower surface (component surface) of the first printed wiring board 600. Among the plurality of types of electronic components 601, surface-mount electronic components 601 are surface-mounted on the upper surface (solder surface) of the first printed wiring board 600 (see Fig. 13). However, the receiving connector 64, the input terminal block 603, the output connector 602, and the first connector 604 are also inserted and mounted on the component surface of the first printed wiring board 600.

[0039] The output connector 602 has a pair of contacts 6020 (see FIG. 14). Each contact 6020 of the output connector 602 is electrically connected to a corresponding one of the pair of terminal boards 42 of the emergency light source unit 4 via a relay wire.

[0040] The receiving connector 64 has a first contact receiver 641, a second contact receiver 642, and a base 640 (see FIG. 14). The base 640 is formed in a rectangular plate shape from an electrically insulating synthetic resin material. The first contact receiver 641 and the second contact receiver 642 are formed in a rod shape and are supported by the base 640 while penetrating the base 640 in the thickness direction. The receiving connector 64 is electrically connected to the electric cable of the emergency power supply unit 9 via a relay electric cable.

[0041] The first circuit block 60 has a printed circuit formed of printed wiring formed on the first printed wiring board 600 and a plurality of types of electronic components 601 mounted on the component side and the solder side of the first printed wiring board 600 (see Figs. 13 and 14). The printed circuit of the first circuit block 60 includes, for example, a DC power supply circuit, a charging circuit, a lighting circuit, a power failure detection circuit, and a control circuit. The DC power supply circuit is formed of, for example, a self-excited switching power supply circuit such as a ringing choke converter, and is configured to convert an AC voltage input from a normal power supply to an input terminal block 603 into a DC voltage. That is, the charging circuit is a circuit for charging the storage battery of the emergency power supply unit 9. The charging circuit is configured to output a constant charging current to the emergency power supply unit 9 through the receiving connector 64 when power is being supplied from the normal power supply. The lighting circuit is configured to make the DC current input from the emergency power supply unit 9 to the receiving connector 64 constant current, and to supply the constant current to the emergency light source unit 4 through the output connector 602. The power failure detection circuit is configured to detect a power failure of the normal power supply based on the output voltage of the DC power supply circuit and notify the control circuit. The control circuit is configured to operate the charging circuit and stop the lighting circuit when the power failure detection circuit does not detect a power failure of the normal power supply. The control circuit is also configured to stop the charging circuit and operate the lighting circuit when the power failure detection circuit detects a power failure of the normal power supply.

[0042] The second circuit block 61 has a rectangular plate-shaped second printed wiring board 610, a first push button switch 611, a second push button switch 612, a display element 613, a light receiving element 614 (receiving section), and a second connector 615 (see FIG. 14). The second connector 615 is mounted on one end (front end) in the longitudinal direction on the lower surface of the second printed wiring board 610. The second push button switch 612 is mounted behind the second connector 615 on the lower surface of the second printed wiring board 610. The first push button switch 611 is mounted on the other end (rear end) in the longitudinal direction on the lower surface of the second printed wiring board 610.

[0043] The display element 613 has, for example, an LED chip that emits green light. The display element 613 is mounted in front of the first push button switch 611 on the lower surface of the second printed wiring board 610. The light receiving element 614 is configured to receive a control signal using, for example, infrared rays as a communication medium from the outside and demodulate a transmission frame from the received control signal. This control signal is transmitted from a remote controller operated by an inspection worker who performs regular inspection work. Note that the "control signal" referred to here is not limited to infrared rays as long as it is a signal using electromagnetic waves as a medium. The control signal may be, for example, a signal using radio waves as a medium other than infrared rays. In this case, a wireless communication antenna may be provided instead of the light receiving element 614. The light receiving element 614 is mounted between the display element 613 and the second push button switch 612 on the lower surface of the second printed wiring board 610. In short, the first and second push button switches 611, 612, the display element 613 and the light receiving element 614 are arranged in the front-to-rear direction in the following order: first push button switch 611, display element 613, light receiving element 614, second push button switch 612 (see FIG. 1).

[0044] The second connector 615 is electrically connected to the first connector 604 of the first circuit block 60 by, for example, a cable. The control circuit of the first circuit block 60 is configured to monitor the operation states (on and off) of the first push button switch 611 and the second push button switch 612 through the cable. The control circuit is also configured to receive, through the cable, a transmission frame of a control signal demodulated by the light receiving element 614. Furthermore, the control circuit is configured to cause the display element 613 to emit light by passing a current through the cable when the charging circuit of the first circuit block 60 is operating.

[0045] The control circuit is configured to perform a self-inspection operation (first inspection operation) when the second push button switch 612 on the front is turned on or when a transmission frame is received from the light receiving element 614. The self-inspection operation means stopping the charging circuit and operating the lighting circuit for a predetermined time (e.g., 30 or 60 minutes), and then stopping the lighting circuit again and operating the charging circuit. When performing regular inspection work, an inspection worker performs this self-inspection operation (first inspection operation) via the second push button switch 612 or a remote controller.

[0046] Furthermore, the control circuit is configured to perform an inspection operation (second inspection operation) different from the self-inspection operation (first inspection operation) when the first push button switch 611 at the rear is turned on. This second inspection operation stops the charging circuit and operates the lighting circuit while the first push button switch 611 is on. When the first push button switch 611 is turned off, the lighting circuit is stopped and the charging circuit is operated. However, it is preferable that the control circuit is configured to perform the second inspection operation even when a transmission frame instructing to perform the second inspection operation is received from the light receiving element 614. When performing inspection work, the user causes this inspection operation (second inspection operation) to be performed via the first push button switch 611.

[0047] Here, it is desirable that the display element 613 displays at least a state related to the second inspection operation. For example, the display element 613 may be configured to emit green light while the charging circuit is operating, and to be turned off during the second inspection operation, i.e., when the charging circuit is stopped and the lighting circuit is operating. However, it is desirable that the display element 613 is configured to be turned off while the lighting circuit is operating not only for the second inspection operation but also for the first inspection operation.

[0048] The case 62 has a first case 620 and a second case 621. The first case 620 has a bottom 6200 and a side wall 6201. The bottom 6200 is formed in a roughly rectangular box shape. The bottom 6200 is configured to support the solder surface of the first printed wiring board 600 of the first circuit block 60 from the thickness direction (up and down direction). The side wall 6201 is formed in a plate shape. The side wall 6201 is connected to the bottom 6200 via a hinge. Therefore, the side wall 6201 is configured to be rotatable with respect to the bottom 6200 about the hinge as an axis. In addition, the side wall 6201 is configured to sandwich and support an end (left end) along the longitudinal direction of the second printed wiring board 610 of the second circuit block 61 from the thickness direction.

[0049] Second case 621 is formed in a box shape with an open top and left side. Second case 621 is coupled to first case 620. The top of second case 621 is closed by bottom 6200 of first case 620. In addition, the left side of second case 621 is closed by side wall 6201 of first case 620 (see FIG. 13).

[0050] The second case 621 has a protruding portion 6210 that protrudes downward from the left end of the lower surface (see FIG. 14). The protruding portion 6210 is formed in an approximately pyramidal shape. The protruding portion 6210 has two transmission members (a first transmission member 6214 and a second transmission member 6215). The first transmission member 6214 is provided at the rear end of the lower surface of the protruding portion 6210. The second transmission member 6215 is provided at the front end of the lower surface of the protruding portion 6210. The first transmission member 6214 and the second transmission member 6215 are configured to be movable in the up and down direction relative to the lower surface of the protruding portion 6210. In other words, the first transmission member 6214 is a member for transmitting an upwardly acting force received from a first operating portion 551 of the operation gasket 55 described later to the first push button switch 611. When the first transmission member 6214 presses the push button of the first push button switch 611, the first push button switch 611 is turned on. The second transmission member 6215 is a member for transmitting an upward force received from a second operation portion 552 of the operation gasket 55 described later to the second push button switch 612. When the second transmission member 6215 presses the push button of the second push button switch 612, the second push button switch 612 is turned on. Furthermore, the support part 6210 has two circular windows 6216 and 6217 between the first transmission member 6214 and the second transmission member 6215 on its lower surface. The front window 6216 faces the light receiving element 614 of the second circuit block 61 in the vertical direction. The rear window 6217 faces the display element 613 of the second circuit block 61 in the vertical direction. That is, a control signal transmitted from the remote controller reaches the light receiving element 614 through the front window 6216. Also, light (green light) emitted by the display element 613 is radiated to the outside of the case 62 through the rear window 6217.

[0051] The second case 621 also has three openings 6211, 6212, and 6213 at the right end. These three openings 6211, 6212, and 6213 are aligned in a row in the front-rear direction (see FIG. 14). The opening 6211 at the front end faces the receiving connector 64 of the first circuit block 60. The opening 6213 at the rear end is through which the input terminal block 603 is inserted. The opening 6212 at the center faces the output connector 602 (see FIG. 14).

[0052] The support member 7 is formed in a roughly rectangular flat plate shape from a material that is generally considered to have a high thermal conductivity, such as aluminum or an aluminum alloy (see FIG. 14). However, the support member 7 may be formed from a material other than aluminum or an aluminum alloy. An insertion hole 70 penetrates the left end of the support member 7. The insertion hole 70 is formed in an elliptical shape with the longitudinal direction being the front-rear direction. A rectangular insertion groove 71 is provided in the center of the right end of the support member 7 in the front-rear direction. Furthermore, three fitting grooves 72 are provided at the front end and the rear end of the support member 7. The fitting groove 72 at the rear end of the support member 7 is provided in approximately the center of the support member 7 in the left-right direction. Meanwhile, the two fitting grooves 72 at the front end of the support member 7 are provided on both the left and right sides of the center of the support member 7 in the left-right direction. Three fitting holes 73 penetrate the center of the support member 7. One screw hole 74 is provided near the center of the front end of the support member 7 and one screw hole 74 is provided near the rear end of the right end of the support member 7. One screw insertion hole 75 is provided each to the right of the insertion hole 70 at the center of the support member 7 in the front-to-rear direction and at both front and rear ends of the right end of the support member 7.

[0053] The emergency light source unit 4 is attached to the underside of the support member 7 by screwing the holder 41 with two mounting screws 45 into two screw holes 74 provided in the support member 7 (see Figs. 11 and 14). The terminal board holding portion 410 of the holder 41 is inserted into the insertion groove 71 of the support member 7 and protrudes to the upper surface side of the support member 7 (see Fig. 12). Then, the corresponding terminal board 42 of the pair of terminal boards 42 and the corresponding contact 6020 of the pair of contacts 6020 of the output connector 602 are electrically connected via a relay electric wire. Furthermore, the LED module 40 is thermally coupled to the support member 7 via the heat dissipation sheet 43.

[0054] 12, the housing 5 has a first housing 51 and a second housing 52. The first housing 51 and the second housing 52 are each formed by aluminum die casting.

[0055] The first housing 51 is formed in a semi-cylindrical shape having an outer peripheral wall 510 in the shape of a semi-cylindrical surface, a first outer wall 511 in a semi-circular shape, and a second outer wall 512 in a semi-circular shape (see Figs. 11 and 12). The first housing 51 also has a pair of first inner walls 513 and a pair of second inner walls 514 (see Fig. 12). The left second inner wall 514 of the pair of second inner walls 514 faces the first outer wall 511 and is formed to rise upward from the inner surface (upper surface) of the outer peripheral wall 510. The right second inner wall 514 of the pair of second inner walls 514 is formed to rise upward from the upper surface of the second outer wall 512. The pair of first inner walls 513 are formed to face each other in the front-rear direction and rise upward from the inner surface of the outer peripheral wall 510. Of the pair of first inner walls 513, the first inner wall 513 located at the front is connected to the front ends of the pair of second inner walls 514 and the inner surface of the second outer wall 512. Moreover, of the pair of first inner walls 513, the first inner wall 513 located at the rear is connected to the rear ends of the pair of second inner walls 514 and the inner surface of the second outer wall 512.

[0056] A recess 500 is formed in the lower surface of the outer peripheral wall 510 at a position in the center in the front-rear direction and toward the right. The recess 500 is formed in an elliptical shape with its long axis direction coinciding with the axial direction (left-right direction) of the outer peripheral wall 510 when viewed from below (see FIG. 11). Therefore, both ends of the long axis direction (left-right direction) of the recess 500 are located lower than both ends of the short axis direction (front-rear direction). Furthermore, a window 501 through which the lens body 440 of the lens 44 is inserted penetrates the center (bottom) of the recess 500. The window 501 is formed in an elliptical shape with its long axis direction coinciding with the short axis direction (front-rear direction) of the recess 500 when viewed from below (see FIG. 11). Four cylindrical protrusions 505 are provided around the window 501 on the lower surface of the outer peripheral wall 510 (only one is shown in FIG. 12).

[0057] Here, as shown in FIG. 3 and FIG. 4, the outer peripheral wall 510 of this embodiment has two holes at a position next to the left of the recess 500. These two holes penetrate so as to be aligned in the front-rear direction. The rear hole has a first operation hole 502 which is a round hole and a display hole 503 which is a long hole connected to the first operation hole 502, and is a hole having a keyhole shape as a whole. The front hole is a second operation hole 504 which is a round hole having a smaller diameter than the first operation hole 502. In addition, the first housing 51 has three first bosses 515 (only two are shown in FIG. 12) which protrude from the upper surface of the outer peripheral wall 510 so as to surround the window 501. Each of these three first bosses 515 is formed in a truncated cone shape and has a screw hole (female thread) with an open upper end. Furthermore, the first housing 51 has a cylindrical protruding wall 518 protruding from the upper surface of the outer circumferential wall 510 so as to surround the first operation hole 502, the display hole 503, and the second operation hole 504 (see FIG. 12). The operation gasket 55 is attached to the first housing 51 by being fitted into the space surrounded by the protruding wall 518.

[0058] The first housing 51 also has four ribs 517, one second boss 516, and a pair of protrusions 519. The four ribs 517 are formed in a rectangular plate shape rising upward from the inner surface of the outer peripheral wall 510 along each of the first inner walls 513 (see Figs. 12 and 15). The second boss 516 is formed in a truncated cone shape having a screw hole (internal thread) with an open upper end. The second boss 516 is also formed so as to rise upward from the inner surface of the outer peripheral wall 510 between the first outer wall 511 and the left second inner wall 514. The pair of protrusions 519 are formed in a truncated cone shape protruding upward at both front and rear ends on the inner side (left side) of the second outer wall 512 (see Fig. 12).

[0059] The second housing 52 is formed in a roughly rectangular box shape as shown in Figs. 11 and 12. The second housing 52 has a bottom wall 520, a pair of first side walls 521, and a pair of second side walls 522. The bottom wall 520 is formed in a rectangular flat plate shape. The pair of first side walls 521 protrude downward from both ends (front end and rear end) of the bottom wall 520 in the longitudinal direction. The pair of second side walls 522 protrude downward from both ends (left end and right end) of the bottom wall 520 in the lateral direction.

[0060] A cylindrical protrusion 5200 protrudes downward from the center of the lower surface of the bottom wall 520 (see Figs. 10 and 11). A cylindrical hole 5201 is provided inside the protrusion 5200. This hole 5201 penetrates the bottom wall 520 and the protrusion 5200 in the vertical direction so as to connect the inside of the housing 5 to the outside of the housing 5 (see Fig. 10). However, this hole 5201 is closed by a member generally called a rubber plug with a hole (hereinafter referred to as a rubber plug 57) (see Fig. 10). The rubber plug 57 is formed in a cylindrical shape from an elastic material such as silicone rubber. The rubber plug 57 also has three holes 570 with at least one wall in the middle (see Fig. 12). That is, each hole 570 of the rubber plug 57 is configured to connect the inside of the housing 5 to the outside of the housing 5 by piercing the wall with a needle or the like.

[0061] The bottom wall 520 has three bosses 5202 and four ribs 5204. The three bosses 5202 are formed in a cylindrical shape protruding downward from the inner surface (lower surface) of the bottom wall 520 (see FIG. 11). Each boss 5202 has a screw hole 5203 opening in the upper surface of the bottom wall 520 (see FIGS. 10 and 12). Two of the four ribs 5204 are formed in a prismatic shape protruding downward from the lower surface of the bottom wall 520 along the front first side wall 521 (see FIG. 11). The remaining two of the four ribs 5204 are formed in a prismatic shape protruding downward from the lower surface of the bottom wall 520 along the rear first side wall 521.

[0062] The left second side wall 522 of the pair of second side walls 522 has a protrusion 5220 that protrudes leftward from the lower end of the center in the front-rear direction on its outer surface (left surface) (see FIGS. 10 and 11). The protrusion 5220 has a hole 5221 that penetrates in the up-down direction (see FIG. 10).

[0063] The second housing 52 has a fixed portion 523 and abutment portion 524. The fixed portion 523 is formed in a rectangular plate shape protruding rightward from the lower end of the right second side wall 522 of the pair of second side walls 522 (see FIG. 11). A cylindrical hole 5230 penetrates the fixed portion 523 in the vertical direction at the center in the front-rear direction (see FIGS. 10 and 11). In addition, approximately wavy recesses 5231 are provided on both the front and rear sides of the hole 5230 on the lower surface of the fixed portion 523. The butt portion 524 is formed in a rectangular box shape protruding rightward from the tip (right end) of the fixed portion 523 (see FIG. 11). Cylindrical bosses 5240 are provided at both ends in the front-rear direction at the tip (right end) of the butt portion 524. Each boss 5240 has a screw hole 5241 with an open upper surface (see FIG. 12).

[0064] As shown in Figs. 11 and 12, the first gasket 53 is made of an elastic material such as silicone rubber and is formed into a rectangular frame shape as a whole. As shown in Figs. 16 and 17, the first gasket 53 has a frame portion 530, a fixing portion 531, a pair of electric wire holding portions 532, and a support portion 533. The frame portion 530 is formed into a rectangular frame shape with four chamfered corners. A recess 5300 that is recessed upward over the entire circumference is provided on the lower surface of the frame portion 530. The fixing portion 531 is formed into a rectangular plate shape that protrudes inward (leftward) from the inner surface at one end (right end) in the longitudinal direction of the frame portion 530. A semicircular protrusion 5310 protrudes inward (leftward) from the center of the longitudinal direction (front-rear direction) of the fixing portion 531. A cylindrical screw insertion hole 5311 penetrates in the vertical direction through the longitudinal center portion of the fixing portion 531 including the protrusion 5310. Furthermore, cylindrical fitting holes 5312 are provided on both the front and rear sides of the screw insertion hole 5311 on the lower surface of the fixing part 531 (see FIG. 16). The support part 533 protrudes downward from the inner edge of the recess 5300 on the lower surface of the frame part 530, except for the right end part of the frame part 530 (the part overlapping with the fixing part 531 when viewed from the up-down direction). A pair of electric wire holding parts 532 protrude upward from both the front and rear sides of the screw insertion hole 5311 on the upper surface of the fixing part 531. Each electric wire holding part 532 is formed in a columnar shape with a bottom surface having an approximately corrugated shape. Each electric wire holding part 532 has a pair of holes 5320 penetrating in the axial direction (left-right direction) and three ribs 5321 protruding from the peripheral surface of each electric wire holding part 532 (see FIG. 17).

[0065] The second gasket 54 is made of an elastic material such as silicone rubber and is formed in a frame shape having an elliptical opening 540 in the center (see FIG. 11). However, the second gasket 54 is preferably colored black so as not to transmit light. Also, an annular peripheral wall 541 protrudes upward over the entire circumference from the edge of the opening 540 on the upper surface of the second gasket 54 (see FIG. 12). Furthermore, two ribs, each having a triangular cross section parallel to the vertical direction, protrude from the upper surface of the peripheral wall 541 so as to be aligned along the radial direction. Also, the second gasket 54 has four fitting holes 542 and two hook pieces 543. The four fitting holes 542 are arranged to surround the opening 540 and penetrate the second gasket 54 in the thickness direction (vertical direction). The two hook pieces 543 are formed in a hook shape, and protrude upward from the right rear end and the left front end of the second gasket 54.

[0066] The emergency lighting device 3 further includes a fixing member 56 (see Figs. 11 and 12). The fixing member 56 is formed of a metal plate that is resistant to rust, such as a stainless steel plate. The fixing member 56 has a pentagonal fixing piece 560 with the longitudinal direction being the front-rear direction, a pair of leg pieces 561 protruding upward from each side of both ends of the longitudinal direction of the fixing piece 560, and a pair of mounting pieces 562 protruding from the upper end of each leg piece 561 so as to face the fixing piece 560. A fixing hole 563 for holding a nut is provided in approximately the center of the fixing piece 560. A screw insertion hole 564 penetrates one end (right end) of each mounting piece 562 (see Fig. 12).

[0067] (2.6) Operating gasket The operation gasket 55 (sealing device) is attached to the first housing 51 so as to close the keyhole-shaped hole formed by the first operation hole 502 and the display hole 503, and the second operation hole 504. The operation gasket 55 is formed of an elastic material that transmits light, such as silicone rubber. As shown in FIG. 2A and FIG. 2B, the operation gasket 55 has a seal part 550, a first operation part 551, a second operation part 552, and a transmission part 553. The seal part 550, the first operation part 551, the second operation part 552, and the transmission part 553 are all integrally formed. In this embodiment, the operation gasket 55 is, for example, a single molded product made of uncolored silicone rubber.

[0068] The seal portion 550 prevents water from entering the housing 5 through the first operation hole 502, the display hole 503, and the second operation hole 504. The seal portion 550 is formed in a roughly elliptical cylindrical shape. The seal portion 550 has a first end surface 550A (one surface, i.e., the lower surface) facing the inner surface of the outer peripheral wall 510 of the first housing 51, and a second end surface 550B (upper surface) facing the control device 6. The first end surface 550A of the seal portion 550 is formed into a curved surface having the same radius of curvature as the surface (lower surface) of the outer peripheral wall 510 of the first housing 51. In addition, three ribs 559, each having a triangular cross section parallel to the vertical direction, protrude from the outer peripheral surface of the seal portion 550 so as to be arranged at equal intervals along the vertical direction. Furthermore, the seal portion 550 has a first through hole 554, a second through hole 555, and a display groove 556. The first through hole 554 is formed in a cylindrical shape penetrating the seal portion 550 in the up-down direction at one end in the longitudinal direction of the seal portion 550. The second through hole 555 is formed in a cylindrical shape penetrating the seal portion 550 in the up-down direction at the other end in the longitudinal direction of the seal portion 550. The indication groove 556 is formed in a square tube shape with an open bottom between the first through hole 554 and the second through hole 555 of the seal portion 550. However, the lower part of the indication groove 556 in the up-down direction is connected to the first through hole 554 (see FIG. 2B).

[0069] The seal portion 550 is formed in an asymmetric shape in the front-rear direction when viewed in the up-down direction. That is, the dimensional relationship is defined so that the width dimension in the front-rear direction around the first operation portion 551 is larger than the width dimension in the front-rear direction around the second operation portion 552. Therefore, when the operation gasket 55 is attached to the first housing 51, it is possible to prevent the seal portion 550 from being erroneously fitted into the protruding wall 518 in the front-rear reversed direction.

[0070] As shown in FIG. 1, the transmitting portion 553 is disposed so as to face the display element 613 through the window 6217, and is configured to transmit light emitted from the display element 613. The transmitting portion 553 is configured by the bottom wall (upper wall) of the display groove 556 in the sealing portion 550 (see FIG. 2A and FIG. 2C). In other words, by providing the display groove 556, the thickness dimension of the transmitting portion 553 in the arrangement direction (vertical direction) in which the display element 613 and the transmitting portion 553 are arranged is sufficiently thinner than the thickness dimension of the sealing portion 550. Specifically, the thickness dimension of the transmitting portion 553 in the vertical direction is sufficiently thinner than the dimension from the first end surface 550A to the second end surface 550B of the sealing portion 550. In short, the transmitting portion 553 is disposed at a recessed position at a predetermined distance from the first end surface 550A of the operation gasket 55 depending on the depth of the display groove 556. The larger the depth dimension of the display groove 556 is set, the smaller the thickness dimension of the transmissive portion 553, and therefore it is possible to suppress attenuation of the light emitted from the display element 613 in the transmissive portion 553. However, if the thickness of the transmissive portion 553 becomes excessively thin, there is a high possibility that the transmissive portion 553 will be damaged and lose its waterproof function, and therefore it is desirable to set the depth dimension of the display groove 556 to an extent that the transmissive portion 553 will not be damaged.

[0071] Moreover, the transmitting portion 553 is disposed facing the light receiving element 614 through the window 6216. Therefore, it is possible to suppress attenuation of the control signal transmitted from the remote controller.

[0072] The first operating part 551 is formed in a cylindrical shape. The first operating part 551 is housed in the first through hole 554 of the seal part 550 such that the axial direction of the first operating part 551 is aligned in the vertical direction. The first operating part 551 is disposed between the first transmission member 6214 and the first operating hole 502 of the first housing 51. The first operating part 551 protrudes toward the first operating hole 502.

[0073] The second operating part 552 is formed in a cylindrical shape that is shorter than the first operating part 551. The second operating part 552 is housed in the second through hole 555 of the seal part 550 with its axial direction aligned in the vertical direction. The second operating part 552 is disposed between the second transmission member 6215 and the second operating hole 504 of the first housing 51. The second operating part 552 protrudes toward the second operating hole 504.

[0074] The operation gasket 55 has a first seal portion 557 that seals the first through hole 554 and a second seal portion 558 that seals the second through hole 555 (see FIG. 2C). The first seal portion 557 and the second seal portion 558 are each formed in a hollow truncated cone shape with two open bottom surfaces. The periphery of the large-diameter bottom surface of the first seal portion 557 is joined to the inner circumferential surface of the first through hole 554 of the seal portion 550. The periphery of the small-diameter bottom surface of the first seal portion 557 is joined to the circumferential surface of the first operation portion 551. The periphery of the large-diameter bottom surface of the second seal portion 558 is joined to the inner circumferential surface of the second through hole 555 of the seal portion 550. The periphery of the small-diameter bottom surface of the second seal portion 558 is joined to the circumferential surface of the second operation portion 552. The tip (lower end) of the first operating part 551 protrudes from the first through hole 554 below the first end surface 550A of the seal part 550 (see FIG. 2B). On the other hand, the tip (lower end) of the second operating part 552 is contained within the second through hole 555 and does not protrude below the first end surface 550A of the seal part 550 (see FIG. 2B). Here, the first seal part 557 and the second seal part 558 are made of an elastic material (silicone rubber) and are therefore elastically deformable. Therefore, when an upward force is applied to the first operating part 551 and the second operating part 552, they move upward, and then, when the upward force is no longer applied, they move downward by the elastic force of the first seal part 557 and the second seal part 558, returning to the initial state (the state shown in FIG. 2C).

[0075] Here, the amount of protrusion of the first operation part 551 with respect to the first operation hole 502 is different from the amount of protrusion of the second operation part 552 with respect to the second operation hole 504. In this embodiment, the protruding tip (lower end) of the first operation part 551 is located outside the first housing 51 from the first operation hole 502. The protruding tip (lower end) of the second operation part 552 is located inside the first housing 51 from the second operation hole 504. Furthermore, the second operation hole 504 has a diameter dimension that prohibits the insertion of a test finger. Here, the test finger is, for example, a pseudo finger as defined in Appendix 4-1(2)-Ha of the Electrical Appliance and Material Safety Act of Japan. Since the diameter dimension of the second operation hole 504 is defined in this way, the second operation part 552 does not accept a pushing operation by a human finger. That is, in this embodiment, the second operation part 552 is provided on the premise of a pushing operation by, for example, the tip of a tool for inspection work. 1, the diameter dimension of first operation hole 502 is set to a size such that the lower end of first operation portion 551 partially protrudes outside first housing 51. That is, in this embodiment, first operation portion 551 is provided on the premise that it will be pressed by a person's finger.

[0076] Therefore, the user can easily recognize the first operation part 551 provided on the premise of a pressing operation by a finger, and can execute the second inspection operation. In addition, since the second operation hole 504 has a diameter dimension that prohibits the insertion of a test finger, it is possible to reduce a situation in which the user mistakenly presses the second operation part 552 corresponding to the first inspection operation (self-inspection operation) with a finger. In addition, the inspection worker can easily recognize the second operation part 552 provided on the premise of a pressing operation by a tool for inspection work, and can execute the first inspection operation (self-inspection operation).

[0077] Moreover, the transmission part 553 is provided between the first operation part 551 and the second operation part 552 when the operation gasket 55 is viewed in the up-down direction. In particular, in the transmission part 553, the first region 553A (see FIG. 2A) in the rear half facing the display element 613 that displays at least the state related to the second inspection operation is adjacent to the first operation part 551. This is because the display element 613 and the first push button switch 611 corresponding to the second inspection operation are adjacent to each other. Such an adjacent arrangement can improve the relationship between the second inspection operation and the display element 613. Therefore, the convenience of the user when performing the second inspection operation is improved. In addition, such an adjacent arrangement can also reduce the size of the emergency lighting device 3 as a whole.

[0078] On the other hand, in the transmission part 553, the second region 553B (see FIG. 2A) in the front half facing the light receiving element 614 is adjacent to the second operation part 552. This is due to the light receiving element 614 and the second push button switch 612 being adjacent to each other. Both the light receiving element 614 and the second push button switch 612 are parts that accept the execution of the first inspection operation (self-inspection operation). Therefore, such adjacent arrangement can improve the relationship between the light receiving element 614 and the second push button switch 612. Therefore, the convenience of the inspection operator when performing the first inspection operation (self-inspection operation) is improved. In addition, such adjacent arrangement can also reduce the size of the emergency lighting device 3 as a whole. Note that the second region 553B facing the light receiving element 614 and the display hole 503 are desirably arranged near the center in the front-rear direction of the first housing 51 as shown in the illustrated example in order to increase the reception sensitivity to the control signal transmitted from the remote controller.

[0079] Incidentally, since the inside of the housing 5 having a waterproof function is a sealed space, the gas in the housing 5 expands due to heat emitted from the LED module 40 (light source), and a pressure difference may occur between the inside and outside of the housing 5. In other words, the internal pressure of the housing 5 may rise, and the reliability of the circuit components and the like may decrease. However, since the transparent portion 553 of this embodiment is made of silicone rubber, the transparent portion 553 does not allow liquid to pass through but allows gas to pass through. Furthermore, since the transparent portion 553 is sufficiently thin, the gas expanded in the housing 5 is easily discharged to the outside through the thin transparent portion 553. Therefore, such a pressure difference can be effectively alleviated, and the decrease in the reliability of the circuit components and the like can be suppressed. Note that if the transparent portion 553 is thin, even if it is not made of silicone rubber, it will deform so as to bulge outward, and a certain degree of alleviation of the pressure difference can be expected.

[0080] (3) Emergency lighting device assembly procedure Next, an assembly procedure for the emergency lighting device 3 will be described. However, an explanation of the assembly work of the emergency light source unit 4 and the control device 6 and the work of attaching the emergency light source unit 4 to the support member 7 will be omitted. Also, the assembly procedures (A) to (H) described below are merely examples, and the order of some assembly work may be changed.

[0081] (A) Attachment of the second gasket 54 to the first housing 51 First, the worker performing the assembly work attaches the second gasket 54 to the first housing 51. Specifically, the worker fits the four protrusions 505 provided on the lower surface of the outer circumferential wall 510 of the first housing 51 into the four fitting holes 542 of the second gasket 54, one by one.

[0082] (B) Attachment of the operation gasket 55 to the first housing 51 The worker attaches the operation gasket 55 to the first housing 51 by pushing the operation gasket 55 into the inside of the protruding wall 518 (see FIG. 13). On the inside of the protruding wall 518, three ribs 559 provided on the seal portion 550 are deformed by being crushed by the protruding wall 518. As a result, the inside of the protruding wall 518 is sealed by the operation gasket 55, so that water is prevented from entering the first housing 51 through the first operation hole 502, the second operation hole 504, and the display hole 503 provided in the outer peripheral wall 510. The tip (lower end) of the first operation portion 551 of the operation gasket 55 protrudes from the surface (lower surface) of the outer peripheral wall 510 through the first operation hole 502 of the first housing 51 (see FIGS. 1 and 3).

[0083] (C) Installation of emergency light source unit 4 to first housing 51 The worker inserts the lens body 440 of the emergency light source unit 4 into the window 501 of the first housing 51 from the opening 540 of the second gasket 54, and fits the multiple ribs 517 of the first housing 51 into the corresponding fitting grooves 72 of the multiple fitting grooves 72 of the support member 7 (see FIG. 15). Then, the worker inserts a screw into each of the three screw insertion holes 75 of the support member 7, and screws each screw into the corresponding screw hole of the three first bosses 515 of the first housing 51, thereby screwing the support member 7 to the first housing 51. At this time, the two ribs provided on the upper surface of the peripheral wall 541 of the second gasket 54 are deformed by being crushed by the outer flange portion 441 of the lens 44 and the peripheral portion of the window 501 in the outer peripheral wall 510. As a result, the window 501 of the first housing 51 and the outer flange portion 441 of the lens 44 are sealed by the second gasket 54, so that the gap between the holder 41 and the window 501 of the first housing 51 is blocked, thereby suppressing water from entering the first housing 51 through the window 501. The first operating portion 551, the second operating portion 552 and the transmitting portion 553 of the operation gasket 55 face the insertion hole 70 of the support member 7 (see FIG. 15).

[0084] (D) Attachment of the first gasket 53 to the first housing 51 The worker presses the upper end portions of the pair of first inner walls 513 and the pair of second inner walls 514 of the first housing 51 into the recess 5300 of the frame portion 530 of the first gasket 53. Furthermore, the worker presses the tip portion of the second boss 516 of the first housing 51 into the screw insertion hole 5311 of the fixing portion 531 of the first gasket 53, and fits each of the projections 519 of the first housing 51 into each fitting hole 5312 of the fixing portion 531. In this manner, the first gasket 53 is attached to the first housing 51 (see FIG. 15).

[0085] (E) Wiring to the control device The worker presses and holds a pair of power lines 80 for normal power supply into the hole 5320 of the rear electric wire holding portion 532 of the two electric wire holding portions 532 of the first gasket 53 (see Fig. 18 and Fig. 19). The worker presses and holds a pair of electric wires 81 for emergency power supply into the hole 5320 of the front electric wire holding portion 532 of the two electric wire holding portions 532 of the first gasket 53 (see Fig. 18). The worker connects one end of the pair of power lines 80 to the input terminal block 603 of the control device 6. The worker also electrically connects one end of the pair of electric wires 81 to the receiving connector 64 of the control device 6. Here, the control device 6 is accommodated in the housing 5, moved toward one end (left end) of the housing 5 in the longitudinal direction. Therefore, the emergency lighting device 3 can secure a space for wiring the power line 80 and the electric wire 81 between the housing 5 and the control device 6 (see Fig. 19). This space for wiring allows the emergency lighting device 3 to be connected to the control device 6 with improved ease.

[0086] (F) Incorporation of the control device 6 into the second housing 52 The worker places the control device 6 inside the second housing 52. At this time, the control device 6 is supported by a plurality of ribs 5204 of the second housing 52 (see FIG. 13).

[0087] (G) Assembling the housing 5 The worker inserts the tip (upper end) of the first boss 515 of the first housing 51 into the hole 5230 of the fixing portion 523 of the second housing 52, and also inserts the tip (upper end) of the second boss 516 of the first housing 51 into the hole 5221 of the protruding portion 5220 of the second housing 52 (see FIG. 13). At this time, the two electric wire holding portions 532 of the first gasket 53 are fitted into the corresponding recesses 5231 of the two recesses 5231 of the fixing portion 523 of the second housing 52. Then, the worker inserts a screw into the hole 5230 of the fixing portion 531 from the upper surface side of the second housing 52, and screws the screw into the screw hole of the first boss 515. Furthermore, the worker inserts a screw into the hole 5221 of the protruding portion 5220 from the upper surface side of the second housing 52, and screws the screw into the screw hole of the second boss 516. That is, the first housing 51 and the second housing 52 are screwed together with two screws to form the housing 5. Here, the pair of first inner walls 513 and the pair of second inner walls 514 of the first housing 51 and the pair of first side walls 521, the pair of second side walls 522, and the fixing portion 523 of the second housing 52 are sealed by the frame portion 530 of the first gasket 53. In addition, three ribs 5321 of the pair of electric wire holding portions 532 of the first gasket 53 are deformed so as to be crushed by the recesses 5231 of the fixing portion 523 of the second housing 52, thereby sealing the pair of recesses 5231 of the second housing 52. Therefore, the first gasket 53 prevents water from entering through the boundary surface between the first housing 51 and the second housing 52.

[0088] (H) Attachment of fixing member 56 to housing 5 The worker places the pair of mounting pieces 562 of the fixing member 56 over the abutment portion 524 of the second housing 52, and screws the screws inserted through the screw insertion holes 564 of the mounting pieces 562 into the screw holes 5241 of the corresponding one of the two bosses 5240 of the abutment portion 524. The fixing member 56 is attached to the housing 5 such that the fixing pieces 560 face the abutment portion 524 of the second housing 52 (see FIGS. 3 to 6).

[0089] Through the above steps, assembly of the emergency lighting device 3 is completed.

[0090] Here, the first operating portion 551 of the operation gasket 55 faces the first transmission member 6214 of the control device 6, and the second operating portion 552 of the operation gasket 55 faces the second transmission member 6215 of the control device 6 (see FIG. 1). Therefore, when the first operating portion 551 moving upward presses the first transmission member 6214 upward, the push button of the first push button switch 611 is pushed by the first transmission member 6214, and the first push button switch 611 is turned on. Also, when the second operating portion 552 moving upward presses the second transmission member 6215 upward, the push button of the second push button switch 612 is pushed by the second transmission member 6215, and the second push button switch 612 is turned on. That is, the operation gasket 55 seals the inside of the protruding wall 518 while allowing the first transmission member 6214 and the second transmission member 6215 of the control device 6 to be pushed. Furthermore, the transmission portion 553 of the operation gasket 55 faces the display element 613 and the light receiving element 614 through the insertion hole 70 of the support member 7 and the two windows 6216 and 6217 provided in the case 62 of the control device 6 (see FIG. 1). Therefore, the light (green light) emitted by the display element 613 is radiated to the outside of the case 62 through the window 6217, and then passes through the transmission portion 553 of the operation gasket 55 and is radiated to the outside of the housing 5. Moreover, the control signal transmitted from the remote controller passes through the transmission portion 553 of the operation gasket 55, and then reaches the light receiving element 614 through the window 6216 of the case 62. Furthermore, since the transparent portion 553 is formed to be sufficiently thinner than the sealing portion 550 of the operation gasket 55, it is possible to suppress attenuation of the light emitted by the display element 613 and the control signal transmitted from the remote controller when they pass through the transparent portion 553.

[0091] As described above, the housing 5 of the emergency lighting device 3 is configured to have a waterproof function by sealing the first housing 51 and the second housing 52 with the first gasket 53. Furthermore, the emergency lighting device 3 has a window 501 provided in the first housing 51 for extracting the light emitted from the emergency light source unit 4, and a second gasket 54 for sealing the window 501. Therefore, the emergency lighting device 3 can easily be provided with a structure for extracting the light emitted by the LED module 40 of the emergency light source unit 4 from the housing 5 having a waterproof function.

[0092] Furthermore, the support member 7 restricts the displacement of the operation gasket 55 along the direction (up-down direction) in which the first housing 51 and the support member 7 are aligned. That is, since the displacement of the operation gasket 55 is restricted by the support member 7, the operation gasket 55 is prevented from falling off the projecting wall 518 of the first housing 51.

[0093] Furthermore, the second gasket 54 seals the window 501 of the first housing 51 and the lens 44 of the emergency light source unit 4, thereby closing the gap between the window 501 and the holder 41. Therefore, the emergency lighting device 3 can suppress water from entering through the gap between the window 501 and the holder 41.

[0094] Here, the support portions 533 of the first gasket 53 are disposed between the first inner walls 513 of the first housing 51 and the case 62 of the control device 6 inside the housing 5 to support the control device 6 (see FIG. 1). Therefore, by the support portions 533 of the first gasket 53 supporting the control device 6, rattling of the control device 6 inside the housing 5 can be suppressed.

[0095] Particularly, in this embodiment, the operation gasket 55 has not only a waterproof function, but also a function of pressing the first push button switch 611 and the second push button switch 612, and a function of transmitting light from the display element 613. Therefore, an increase in the number of parts can be suppressed.

[0096] Next, a procedure for assembling the lighting fixture 1 will be described. However, a description of the work of attaching the emergency power supply unit 9 to the fixture body 10 will be omitted. Also, the assembly procedures (I) to (K) described below are merely examples, and the order of some of the assembly steps may be changed.

[0097] (I) Installation of emergency lighting device 3 on fixture body 10 The worker attaches the emergency lighting device 3 to the fixture body 10 before attaching the normal lighting device 2. First, the worker accommodates the second housing 52 of the housings 5 ​​of the emergency lighting device 3 in the fixture body 10. Next, the worker inserts screws from the upper surface side of the top plate 11 of the fixture body 10 into each of the three screw insertion holes 110 (see FIG. 9 ) provided in the top plate 11, and screws each screw into the screw holes 5203 of the three bosses 5202 provided in the bottom wall 520 of the second housing 52. That is, the emergency lighting device 3 is screwed to the top plate 11 of the fixture body 10 by the three screws.

[0098] (J) Wiring of control device 6 An operator connects two electric wires 81 held by the electric wire holding portion 532 in front of the first gasket 53 to a connector provided on an electric cable of the emergency power supply unit 9 (see FIG. 18). However, two power supply wires 80 (see FIGS. 18 and 19) held by the electric wire holding portion 532 in the rear of the first gasket 53 are electrically connected to the power supply wires of the normal power supply when the lighting fixture 1 is installed.

[0099] (K) Installation of the regular lighting device 2 to the fixture body 10 The worker inserts the upper part of the daily lighting device 2 (the part above the second fixing parts 241 of the two mounting fixtures 24) into the fixture body 10. Then, the worker inserts the shaft of a screwdriver into the recess 2215 of the cover part 2214 of the right end member 221, and tightens the mounting screw inserted into the screw insertion hole 243 of the second fixing part 241 through the hole 2216 provided in the bottom wall of the recess 2215. When the worker tightens the mounting screw using the screwdriver, the mounting screw is screwed into the screw hole 131 of the right mounting piece 130 of the fixture body 10. As a result, the second fixing part 241 of the right mounting fixture 24 is screwed to the right mounting piece 130 of the fixture body 10. Next, the worker inserts the shaft of a screwdriver into the recess 2215 of the cover part 2214 of the left end member 221, and tightens the mounting screw inserted into the screw insertion hole 243 of the second fixing part 241 through the hole 2216 provided in the bottom wall of the recess 2215. When the worker tightens the mounting screw using the screwdriver, the mounting screw is screwed into the nut held in the fixing hole 563 of the fixing member 56. As a result, the second fixing part 241 of the left mounting fixture 24 is screwed to the fixing piece 560 of the fixing member 56. Finally, the worker closes the opening of the recess 2215 exposed on the surface of the cover part 2214 with tape or the like to cover it. In this way, the common lighting device 2 is attached to the fixture body 10, and the assembly of the lighting fixture is completed (see FIG. 7).

[0100] (4) Variations Several modified examples are listed below. Hereinafter, the above-described embodiment will be referred to as a "basic example." The modified examples described below can also be applied in appropriate combination with the basic example described above.

[0101] In the basic example, the display groove 556 is provided on the first end surface 550A (lower surface) of the seal portion 550, so that the transmissive portion 553 is disposed at a recessed position at a predetermined distance from the first end surface 550A. However, this is not limited, and the display groove 556 may be provided on the second end surface 550B (upper surface) of the seal portion 550, so that the surface of the transmissive portion 553 may be flush with the first end surface 550A (lower surface). In this case, the visible range of the light emitted from the display element 613 is wider than in the basic example, so that convenience is improved. However, since there is an increased possibility that the transmissive portion 553 will be damaged by a human finger or the like touching the transmissive portion 553, the basic example is preferable when waterproofing is important.

[0102] In the basic example, the number of push button switches is two (first push button switch 611 and second push button switch 612), but it may be only one or it may be three or more. Also, depending on the number of push button switches, the number of operation parts of operation gasket 55 may be one or it may be three or more.

[0103] In the basic example, the operation gasket 55 is made of uncolored silicone rubber, but it may be partially colored. However, it is preferable that at least the transmission part 553 is uncolored in order to transmit light.

[0104] In the basic example, the seal portion 550 of the operation gasket 55 has three ribs 559 on its outer circumferential surface. The three ribs 559 are crushed and deformed by the protruding wall 518 of the first housing 51, thereby preventing water from entering the first housing 51 through the first operation hole 502, the second operation hole 504, and the display hole 503. However, this is not limited to the above, and the seal portion 550 of the operation gasket 55 may have a first flange protruding outward from the periphery of the second end face 550B (upper face) instead of having the three ribs 559. In this case, the first flange is pressed against the upper end edge of the protruding wall 518, thereby preventing water from entering the first housing 51. Furthermore, the seal portion 550 of the operation gasket 55 may further have, in addition to the first flange, one or more second flanges formed on the first end surface 550A (lower surface) side so as to correspond to the first operation hole 502, the second operation hole 504, and the display hole 503, respectively. In this case, the second flanges are pressed against the peripheries of the corresponding holes from the outside of the first housing 51, thereby preventing water from entering the first housing 51. However, even if only the first flange is provided, sufficient prevention of water from entering can be expected.

[0105] (5) Advantages As described above, the emergency lighting device 3 according to the first embodiment includes the emergency light source unit 4, the control device 6 that turns on the emergency light source unit 4, the housing 5 that houses the emergency light source unit 4 and the control device 6, and a sealing device (operation gasket 55). The control device 6 has a push button switch (first push button switch 611 or second push button switch 612) for receiving an operation input, and a display element 613 that emits light for display. The housing 5 has a first hole and a second hole (first operation hole 502 and display hole 503, or second operation hole 504 and display hole 503). The first hole is located opposite the push button switch. The second hole is located opposite the display element 613. The sealing device is attached to the housing 5 so as to cover the first hole and the second hole. The sealing device has a seal portion 550 that prevents water from entering the housing 5 through the first hole and the second hole, an operation portion (first operation portion 551 or second operation portion 552) for pressing the push button switch, and a transmission portion 553 that transmits light from the display element 613. The seal portion 550, the operation portion, and the transmission portion 553 are integrally formed.

[0106] According to the first aspect, the sealing device has not only a waterproof function, but also a function of pressing the push button switch and a function of transmitting light from the display element 613. Therefore, an increase in the number of parts can be suppressed.

[0107] Regarding the emergency lighting device 3 of the second aspect, in the first aspect, it is preferable that the first hole (first operation hole 502) and the second hole (display hole 503) are connected to each other to form a single hole.

[0108] According to the second aspect, the relationship between the push button switch facing the first hole and the display element 613 facing the second hole can be improved. That is, for example, when the control device 6 executes an inspection operation in response to a push operation of the push button switch and displays the inspection result or the operation status on the display element 613, the above-mentioned relationship is improved by providing the first hole and the second hole as one hole. Therefore, convenience is improved.

[0109] Regarding the emergency lighting device 3 according to the third aspect, in the first or second aspect, the sealing device (operation gasket 55) is preferably made of silicone rubber.

[0110] According to the third aspect, a sealing device having flexibility can be provided. In particular, for example, a good tactile feeling can be given when a person presses the operation part with a finger. In addition, an operation part that can be smoothly elastically deformed toward the push button switch can be provided, improving operability.

[0111] Regarding the emergency lighting device 3 according to the fourth aspect, in any one of the first to third aspects, it is preferable that the thickness dimension of the transparent portion 553 in the arrangement direction in which the display element 613 and the transparent portion 553 are arranged is thinner than the thickness dimension of the seal portion 550. According to the fourth aspect, it is possible to suppress attenuation of the light emitted from the display element 613 at the transparent portion 553. In addition, even if the gas in the housing 5 expands due to heat emitted from the light source of the emergency light source unit 4, causing a pressure difference between the inside and the outside of the housing 5, the thin transparent portion 553 can be deformed to expand outward and can alleviate the pressure difference. Therefore, it is possible to suppress a decrease in reliability of circuit components and the like due to the pressure difference. In particular, when the transparent portion 553 is formed of, for example, silicone rubber, the expanded gas can be discharged to the outside, so that the pressure difference can be alleviated more effectively.

[0112] With respect to the emergency lighting device 3 according to the fifth aspect, in the fourth aspect, it is preferable that the sealing portion 550 has one surface (first end surface 550A) facing the inner surface of the housing 5. It is preferable that the transmitting portion 553 is flush with the one surface of the sealing portion 550. According to the fifth aspect, the visible range of the light emitted from the display element 613 is expanded, thereby improving convenience.

[0113] With respect to the emergency lighting device 3 according to the sixth aspect, in the fourth aspect, it is preferable that the sealing portion 550 has one surface (first end surface 550A) facing the inner surface of the housing 5. It is preferable that the transmitting portion 553 is disposed at a recessed position at a predetermined distance from the one surface of the sealing portion 550. According to the sixth aspect, it is possible to reduce a situation in which a person's finger or the like comes into contact with the transmitting portion 553 and the transmitting portion 553 is damaged. In other words, it is possible to suppress a deterioration in the waterproof function.

[0114] With regard to the emergency lighting device 3 according to the seventh aspect, in any one of the first to sixth aspects, it is preferable that the control device 6 further includes a receiving unit (light receiving element 614) that receives a control signal using electromagnetic waves as a medium through the transmitting portion 553. According to the seventh aspect, the control device 6 can, for example, execute a predetermined inspection operation in response to receiving the control signal. Furthermore, since the control signal is received through the transmitting portion 553, attenuation of the control signal can be suppressed. In particular, since both the light of the display element 613 and the control signal pass through the transmitting portion 553, this also contributes to miniaturization of the emergency lighting device 3 as a whole.

[0115] In any one of the first to seventh aspects of the emergency lighting device 3 according to the eighth aspect, the control device 6 preferably has a first push button switch 611 and a second push button switch 612. The first push button switch 611 receives an operation input as the above-mentioned push button switch. The second push button switch 612 receives an operation input. The housing 5 preferably further has a third hole (second operation hole 504) at a position facing the second push button switch 612. The sealing device (operation gasket 55) preferably has, as the above-mentioned operation section, a first operation section 551 for pressing the first push button switch 611 and a second operation section 552 for pressing the second push button switch 612. The sealing device is preferably attached to the housing 5 so as to cover the first hole (first operation hole 502), the second hole (display hole 503) and the third hole.

[0116] The sealing portion 550 preferably prevents water from entering the housing 5 through the first hole, the second hole, and the third hole. The sealing portion 550, the first operation portion 551, the second operation portion 552, and the transmission portion 553 are preferably formed integrally. The first operation portion 551 and the second operation portion 552 preferably protrude toward the first hole and the third hole, respectively. The protruding amount of the first operation portion 551 is preferably different from the protruding amount of the second operation portion 552.

[0117] According to the eighth aspect, it is possible to easily distinguish between first operation unit 551 and second operation unit 552 based on the difference in the amount of protrusion. In particular, even when control device 6 executes different operations by operating first operation unit 551 and second operation unit 552, it is possible to reduce a situation in which an operation unit is pressed by mistake and an unintended operation is executed.

[0118] In relation to the emergency lighting device 3 according to the ninth aspect, in the eighth aspect, it is preferable that the protruding tip of the first operation unit 551 is located outside the housing 5 relative to the first hole (first operation hole 502). It is preferable that the protruding tip of the second operation unit 552 is located inside the housing 5 relative to the third hole (second operation hole 504).

[0119] According to the ninth aspect, it is possible to more easily distinguish between the first operation unit 551 and the second operation unit 552. In particular, since the tip of the first operation unit 551 is located on the outer side of the housing 5 from the first hole, the user can easily recognize that the first operation unit 551 is provided on the premise that it is pressed by a human finger. Therefore, convenience is improved.

[0120] The lighting fixture 1 according to the tenth aspect includes the emergency lighting device 3 according to any one of the first to ninth aspects and a fixture body 10 that supports the emergency lighting device 3. According to the tenth aspect, it is possible to provide a lighting fixture 1 including an emergency lighting device 3 that has a waterproof function while suppressing an increase in the number of components.

[0121] The lighting fixture 1 according to the eleventh aspect is preferably the lighting fixture 1 of the tenth aspect, further comprising a regular lighting device 2 that is supported by the fixture body 10 and provides regular lighting. According to the eleventh aspect, a lighting fixture that serves both regular lighting and emergency lighting can be provided.

[0122] Preferably, the lighting fixture 1 according to the twelfth aspect further includes an emergency power supply (emergency power supply unit 9) supported by the fixture body 10 and supplying power to the emergency lighting device 3 in the tenth or eleventh aspect. According to the twelfth aspect, the lighting fixture 1 can be easily installed in buildings or facilities that do not have emergency power supply equipment. [Explanation of symbols]

[0123] 1 Lighting equipment 2 Regular lighting equipment 3 Emergency lighting system 4 Emergency light source unit 5. Cabinet 502 1st operation hole (1st hole) 503 Display hole (2nd hole) 504 2nd operation hole (3rd hole) 6. Control device 611 First push button switch (push button switch) 612 Second push button switch 613 Display element 614 Photodetector (receiving part) 55 Operating gasket (sealing device) 550 Seal part 550A 1st end face 551 1st operation section (operation section) 552 2nd operation section 553 Transparent part 9 Emergency power supply unit (emergency power supply) 10. Equipment body

Claims

1. An emergency light source unit having a light source and a lens facing the light source; A control device that turns on the emergency light source unit and has a light receiving element that receives a control signal related to an inspection operation from the outside using infrared rays as a communication medium; A housing that accommodates the emergency light source unit and the control device; a transmission section disposed opposite the light receiving element in a manner to seal the housing, the transmission section transmitting the control signal using the infrared ray as a communication medium; A seal portion; Equipped with the housing has a window through which a lens body of the lens is inserted to expose the lens body to the outside, and a hole that is separate from the window and is provided at a position facing the light receiving element, The sealing portion prevents water from entering the housing through the hole, the sealing portion and the transmission portion are integrally formed and attached to the housing so as to close the hole, The control device further includes a push button switch for receiving an operation input and a display element for emitting light for display, The device further includes an operation unit for pressing the push button switch, the housing has a first hole at a position facing the push button switch, and a second hole as the hole at a position facing the display element and the light receiving element; the transmission portion transmits light from the display element; The operation section and the transmission section are integrally formed and attached to the housing so as to cover the first hole and the second hole. An emergency lighting device characterized by:

2. An emergency light source unit having a light source and a lens facing the light source; A control device that turns on the emergency light source unit and has a light receiving element that receives a control signal related to an inspection operation from the outside using infrared rays as a communication medium; A housing that accommodates the emergency light source unit and the control device; a transmission section disposed opposite the light receiving element in a manner to seal the housing, the transmission section transmitting the control signal using the infrared ray as a communication medium; A seal portion; Equipped with the housing has a window through which a lens body of the lens is inserted to expose the lens body to the outside, and a hole that is separate from the window and is provided at a position facing the light receiving element, The sealing portion prevents water from entering the housing through the hole, the sealing portion and the transmission portion are integrally formed and attached to the housing so as to close the hole, the transmission portion has a thickness dimension in an arrangement direction in which the light receiving element and the transmission portion are arranged, the thickness dimension being thinner than a thickness dimension of the seal portion, the seal portion has one surface facing the inner surface of the housing, The transmitting portion is flush with the one surface of the sealing portion. An emergency lighting device characterized by:

3. An emergency light source unit having a light source and a lens facing the light source; A control device that turns on the emergency light source unit and has a light receiving element that receives a control signal related to an inspection operation from the outside using infrared rays as a communication medium; A housing that accommodates the emergency light source unit and the control device; a transmission section disposed opposite the light receiving element in a manner to seal the housing, the transmission section transmitting the control signal using the infrared ray as a communication medium; A seal portion; Equipped with the housing has a window through which a lens body of the lens is inserted to expose the lens body to the outside, and a hole that is separate from the window and is provided at a position facing the light receiving element, The sealing portion prevents water from entering the housing through the hole, the sealing portion and the transmission portion are integrally formed and attached to the housing so as to close the hole, the transmission portion has a thickness dimension in an arrangement direction in which the light receiving element and the transmission portion are arranged, the thickness dimension being thinner than a thickness dimension of the seal portion, the seal portion has one surface facing the inner surface of the housing, The transmission portion is disposed at a recessed position at a predetermined distance from the one surface of the seal portion. An emergency lighting device characterized by:

4. The transmission portion is made of silicone rubber.

4. The emergency lighting device according to claim 1, wherein the first and second electrodes are electrically connected to the first and second electrodes.

5. The emergency light source unit is turned on by receiving power from an emergency power source.

5. The emergency lighting device according to claim 1, wherein the first and second electrodes are electrically connected to the first and second electrodes.

6. An emergency lighting device according to any one of claims 1 to 5; A fixture body for supporting the emergency lighting device; Equipped A lighting fixture characterized by:

7. Further comprising a regular lighting device supported by the fixture body for regular lighting.

7. A lighting device according to claim 6.

8. Further comprising an emergency power source supported by the fixture body and supplying power to the emergency lighting device.

8. A lighting device according to claim 6 or 7.

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