Emergency lighting equipment and lighting fixtures

Abstract

To maintain waterproofing functionality while minimizing the increase in the number of components. [Solution] The emergency lighting device 3 comprises an emergency light source unit 4, a control device 6, a housing 5, and an operating gasket 55. The control device 6 has a first push-button switch 611 and a display element 613. The housing 5 has a first operating hole 502 and a display hole 503. The operating gasket 55 is attached to the housing 5 so as to close the first operating hole 502 and the display hole 503. The operating gasket 55 has a sealing portion 550, a first operating portion 551, and a transparent portion 553 that transmits light from the display element 613. The sealing portion 550, the first operating portion 551, and the transparent portion 553 are formed as a single unit.

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 for performing emergency lighting and a lighting fixture provided with the emergency lighting device.

Background Art

[0002] As a conventional example, the lighting fixture described in Patent Document 1 is exemplified. This conventional example includes an appliance body, a normal light source unit for normal lighting, and an emergency lighting device for emergency lighting. The appliance body is formed in a long and rectangular box shape with an opening on the lower surface. 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 for lighting each LED module. The normal light source unit is housed in the appliance body so that the cover is exposed from the lower surface of the appliance 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 supply (a storage battery), etc. A 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 supply is disposed behind the LED module. The control device includes a charging circuit for charging the emergency power supply with the power supplied from the normal power supply, and an emergency power supply circuit for lighting the LED module using the emergency power supply as a power source when a power failure occurs in the normal power supply. Further, the control device includes a control circuit that receives an operation input by an inspection switch and performs an inspection operation. The normal power supply is, for example, a power supply (commercial AC power supply) that supplies power to the power supply device of the normal light source unit.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] Incidentally, when emergency lighting devices are installed in humid spaces or outdoors or on rooftops where they may be exposed to rainwater, waterproofing of the emergency lighting devices is necessary. Also, when a light-receiving element is housed within the casing of the emergency lighting device, it may be desirable to minimize attenuation of the light received by the light-receiving element.

[0006] The object of the present invention is to provide an emergency lighting device and lighting fixture that have a waterproof function while being able to prevent attenuation of light received by the light receiving element. [Means for solving the problem]

[0007] An emergency lighting device according to one aspect of the present invention comprises: 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 lights up the emergency light source unit and receives control signals related to inspection operations from the outside using infrared light as a communication medium, and a push-button switch for receiving operation input; a housing that houses the emergency light source unit and the control device; a transparent portion arranged facing the light-receiving element in a manner that seals the housing and transmits the control signals using infrared light as a communication medium; a sealing portion; and an operating portion for pressing the push-button switch. The housing has a window through which the lens body of the lens is inserted and the lens body is exposed to the outside, and a hole separate from the window and 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 transparent portion are formed integrally and are attached to the housing so as to close the hole. The housing has a first hole at a position opposite to the push-button switch, and a second hole at a position opposite to the light-receiving element. The operating section and the transparent section are formed integrally and are attached to the housing so as to close the first and second holes.

[0008] An emergency lighting device according to another aspect of the present invention comprises 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 lights up the emergency light source unit and receives control signals related to inspection operations from the outside using infrared light as a communication medium, and a display element that emits display light; a housing that houses the emergency light source unit and the control device; a transparent portion arranged facing the light-receiving element in a manner that seals the housing and transmits the control signals using infrared light as a communication medium; and a sealing portion. The housing has a window through which the lens body of the lens is inserted and the lens body is exposed to the outside, and a hole separate from the window and provided at a position facing the light-receiving element and the display element. The sealing portion prevents water from entering the housing through the hole. The sealing portion and the transparent portion are formed integrally and are attached to the housing so as to close the hole.

[0009] A lighting fixture according to one aspect of the present invention comprises any of the above-mentioned emergency lighting devices and a fixture body that supports the emergency lighting device. [Effects of the Invention]

[0010] The emergency lighting device and lighting fixture of the present invention have the effect of being waterproof while also being able to reduce the attenuation of light received by the light receiving element. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is a cross-sectional view of an emergency lighting device according to one embodiment of the present invention. [Figure 2] Figure 2A is a perspective view of the operating gasket in the same emergency lighting device, viewed from above. Figure 2B is a perspective view of the operating gasket in the same emergency lighting device, viewed from below. Figure 2C is a cross-sectional view of the operating gasket in the same emergency lighting device. [Figure 3] Figure 3 is a perspective view of the emergency lighting device shown above, seen from below. [Figure 4] Figure 4 is a front view of the emergency lighting device shown above. [Figure 5] Figure 5 is a side view of the emergency lighting device described above. [Figure 6] Figure 6 is a side view of the emergency lighting device described above. [Figure 7] Figure 7 is a perspective view of a lighting fixture according to an embodiment of the present invention. [Figure 8] Figure 8 is an exploded perspective view of the lighting fixture described above. [Figure 9] Figure 9 is an exploded perspective view of the lighting fixture described above with the normal lighting device omitted. [Figure 10] Figure 10 is a cross-sectional perspective view of the main part of the lighting fixture described above. [Figure 11] Figure 11 is an exploded perspective view of the emergency lighting device described above as seen from below. [Figure 12] Figure 12 is an exploded perspective view of the emergency lighting device described above as seen from above. [Figure 13] Figure 13 is a longitudinal cross-sectional view of the emergency lighting device described above. [Figure 14] Figure 14 is an exploded perspective view of the emergency light source unit and the control device in the emergency lighting device described above. [Figure 15] Figure 15 is a plan view of the main part including the first housing of the emergency lighting device described above. [Figure 16] Figure 16 is a perspective view of the first gasket in the emergency lighting device described above as seen from below. [Figure 17] Figure 17 is a perspective view of the first gasket in the emergency lighting device described above as seen from above. [Figure 18] Figure 18 is a perspective view of the lighting fixture described above as seen from the longitudinal direction with the normal lighting device removed. [Figure 19] Figure 19 is a cross-sectional view of the main part of the lighting fixture described above with the normal lighting device removed.

Embodiments for Carrying Out the Invention

[0012] (1) Overview The configuration described below is merely an example of the present invention, and the present invention is not limited to the following configuration. Even if it is other than the following configuration, various changes can be made according to the design and the like as long as it does not deviate from the technical idea of the present invention.

[0013] The lighting fixture 1 of the present embodiment is, for example, a direct - mounting type lighting fixture that is directly mounted on the ceiling of an open corridor in an apartment building, under the eaves of an outdoor parking lot, under the eaves of a warehouse truck yard, the ceiling of a humid food factory, etc. However, the lighting fixture 1 may be an embedded lighting fixture or a lighting fixture attached to a wall. The lighting fixture 1 includes at least an emergency lighting device 3 for performing emergency lighting and a fixture body 10 that supports the emergency lighting device 3. In the present embodiment, as an example, the lighting fixture 1 further includes a normal lighting device 2 for performing normal lighting and an emergency power unit 9 that supplies power to the emergency lighting device 3.

[0014] 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 lights 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 the present embodiment) for receiving an operation input and a display element 613 that emits display light. However, the control device 6 may have only one of the two push - button switches. Hereinafter, the two push - button switches will be referred to as the "first push - button switch 611" and the "second push - button switch 612".

[0015] The housing 5 has a first hole, a second hole (display hole 503), and a third hole. The first hole is located at a position facing either the first push - button switch 611 or the second push - button switch 612. The second hole is located at a position facing the display element 613. The third hole is located at a position facing the other of the first push - button switch 611 and the second push - button switch 612. When the control device 6 has only one of the first push - button switch 611 and the second push - button switch 612, the housing 5 may have only the corresponding hole of the first hole and the third hole.

[0016] In the following explanation, we will assume that the "first hole" corresponds to the first operation hole 502 facing the first push-button switch 611 and is connected to the "second hole," which is the indicator hole 503, forming a single hole. We will also assume that the "third hole" corresponds to the second operation hole 504 facing the second push-button switch 612. However, this is not limited to this, 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 need to be connected to the "second hole," which is the indicator hole 503.

[0017] In this embodiment, the operating gasket 55 is attached to the housing 5 so as to seal the first to third holes. The operating gasket 55 has a sealing portion 550 that prevents water from entering the housing 5 through the first to third holes, an operating portion for pressing the push-button switch, and a transparent portion 553 that transmits light from the display element 613. In this embodiment, as an example, since the control device 6 has two push-button switches (first push-button switch 611 and second push-button switch 612), the operating gasket 55 has two operating portions (first operating portion 551 and second operating portion 552).

[0018] The sealing portion 550, the first operating portion 551, the second operating portion 552, and the permeable portion 553 are all formed as a single unit. The operating gasket 55 is, for example, a single molded product made of silicone rubber.

[0019] In this configuration, the operating gasket 55 not only provides a waterproofing function, but also functions to operate the first push-button switch 611 and the second push-button switch 612, and to transmit light from the display element 613. Therefore, the number of components can be kept to a minimum.

[0020] (2) Details (2.1) Overall structure The lighting fixture 1 of this embodiment will now be described in detail with reference to the drawings. As described in the "(1) Overview" section, the lighting fixture 1 of this embodiment comprises a normal lighting device 2 for normal lighting, an emergency lighting device 3 for emergency lighting, and a fixture body 10 that houses the normal lighting device 2 and the emergency lighting device 3 (see Figures 7 to 9). Furthermore, the lighting fixture 1 is equipped with 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 / back directions of the lighting fixture 1 are defined in the orientation shown in Figure 7.

[0021] Furthermore, in the following, "user" refers to, for example, a person working at the location where lighting fixture 1 is installed or the owner of lighting fixture 1, that is, a person whose job is not inspection work. On the other hand, "inspection worker" refers to, for example, a worker whose job is to perform periodic inspection work.

[0022] (2.2) Main body of the device The fixture body 10 has a long, rectangular flat top plate 11 and a pair of first side plates 12 that project downward from each of the 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 that project downward from each of the two edges along the short direction (front-back direction) of the top plate 11 and a pair of reflectors 14 that project diagonally downward from the lower end of each first side plate 12. In other words, the fixture body 10 is formed in the shape of a rectangular box with an opening on the lower surface facing the top plate 11. The top plate 11 has a hole for passing wires through approximately in the center in its left-right direction. The top plate 11 also has holes 111 for passing suspension bolts through (see Figure 8). In addition, each second side plate 13 is provided with a mounting piece 130 that projects parallel to the top plate 11 at its lower end (see Figure 9). Each mounting piece 130 is provided with a screw hole (female thread) 131.

[0023] (2.3) Regular lighting equipment As shown in Figures 8 and 10, the regular 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 with the LED module 20 inside, a power supply, two fixing devices 23, and two mounting devices 24.

[0024] The LED module 20 has a rectangular substrate (printed circuit board) 200 formed in the left-right direction, and a plurality of LEDs (Light Emitting Diodes) 201 mounted on the underside of the substrate 200. The plurality of LEDs 201 are mounted along the longitudinal direction of the substrate 200 at regular intervals (see Figure 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 the output terminal of the power supply unit via a connector mounted on the substrate 200 and wires electrically connected to the connector.

[0025] The support plate 21 is formed into a box shape by bending sheet metal (see Figure 10). Specifically, the support plate 21 has a long, rectangular base plate 210 and a pair of side plates that rise upward along the longitudinal direction from both ends of the base plate 210 in the short direction (front-to-back direction). The LED module 20 is attached to the underside of the base plate 210 (see Figure 10).

[0026] The power supply unit is configured to convert AC power supplied from a regular power source (e.g., commercial AC power) into DC power, and then supply the converted DC power to the LED module 20 to light up the LED module 20. The power supply unit is mounted on the upper surface of the bottom plate 210 of the support plate 21. The LED module 20 and the power supply unit are electrically connected by wires inserted through through holes provided in the bottom plate 210.

[0027] The case 22 comprises a case body 220, two end members 221, and two gaskets (fixing seals) 222 (see Figures 8 and 10). The case body 220 is formed from a synthetic resin material into a long cylindrical shape with both ends in the longitudinal direction open, and is configured to house the LED module 20 and the support plate 21 inside (see Figure 10). The support plate 21 is fixed to the case body 220 by two fasteners 23.

[0028] As shown in Figures 8 and 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 of the case body 220 parallel to the front-rear and up-down directions. The second bottom wall 2211 is formed in an approximately semi-circular disc shape. The outer peripheral wall 2212 is formed in a cylindrical shape that protrudes from the periphery of the first bottom wall 2210 all around. The inner peripheral wall 2213 is formed in a cylindrical shape that protrudes from the first bottom wall 2210 opposite the outer peripheral wall 2212. The cover portion 2214 protrudes from the arc-shaped portion of the periphery of the second bottom wall 2211 in the thickness direction of the second bottom wall 2211, and its surface is formed to be the same curved surface (approximately semi-cylindrical surface) as the surface of the outer peripheral wall 2212 (see Figure 8). Furthermore, a cylindrical recess 2215 is provided in the center of the lower surface of the cover portion 2214 (see Figure 8). In addition, a circular hole 2216 is formed in the bottom wall of the recess 2215 (see Figure 10).

[0029] The gasket 222 is formed from an elastic material such as silicone resin in a shape (cylindrical) similar to the outer peripheral wall 2212 and inner peripheral wall 2213 of the end member 221. The gasket 222 is then press-fitted into the space surrounded by the first bottom wall 2210, outer peripheral wall 2212, and inner peripheral wall 2213 of the end member 221. Furthermore, the gasket 222 has a groove 2220 that extends around the entire circumference of the surface exposed from the tips of the outer peripheral wall 2212 and inner peripheral wall 2213. The longitudinal end of the case body 220 is then press-fitted into this groove 2220 (see Figure 10). In other words, the end member 221 and the case body 220 are sealed by the gasket 222, preventing water (rainwater, etc.) from entering the case body 220.

[0030] The fastener 23 has a fixing piece 230, a pair of mounting pieces 231, and a pair of side walls 232 (see Figure 10). However, both fasteners 23 have the same structure. The fixing piece 230 is formed in the shape of a rectangular flat plate. The pair of mounting pieces 231 are rectangular flat plates and are provided to protrude downward from the front and rear ends of the fixing piece 230. The pair of side walls 232 are rectangular flat plates and are provided to protrude downward from the left and right ends of the fixing piece 230. One fastener 23 is attached to the left end of the upper surface of the support plate 21. The other fastener 23 is attached to the right end of the upper surface of the support plate 21. When each fastener 23 is housed in the case body 220, the fixing piece 230 and the case body 220 are screwed together, thereby fixing the support plate 21 to the case body 220.

[0031] As shown in Figure 10, the mounting bracket 24 has a first fixing part 240, a second fixing part 241, and a connecting part 242 that connects the first fixing part 240 and the second fixing part 241. The first fixing part 240, the second fixing part 241, and the connecting part 242 are integrally formed by processing a metal plate. However, both mounting brackets 24 have the same structure. The second fixing part 241 has an elongated screw insertion hole 243 approximately in the center in the front-to-back direction (see Figure 10). The first fixing part 240 of the mounting bracket 24 is screwed to the fixing piece 230 of the mounting bracket 23 from outside the case 22.

[0032] (2.4) Emergency power supply unit As shown in Figures 8 and 9, the emergency power supply unit 9 comprises a plurality of dry cell type batteries, a battery case 90 housing these batteries, an electrical cable extending from the battery case 90, and a fixing bracket 91 for securing the battery case 90 to the device body 10. The battery case 90 is formed in a cylindrical shape with an oval cross-section perpendicular to the axial direction. Each battery is, for example, a dry cell type nickel-metal hydride battery. The plurality of batteries are housed in the battery case 90 so that their axial directions are aligned with the axial direction of the battery case 90. Each battery is electrically connected in series by a plurality of terminal boards. The electrical cable has a first wire electrically connected to one end (positive terminal) of the series circuit of the plurality of batteries, and a second wire electrically connected to the other end (negative terminal) of the series circuit of the plurality of batteries. A connector is provided at the end of the electrical cable. The fixing bracket 91 is formed in a box shape from a metal plate. The fixing bracket 91 is secured to the underside of the top plate 11 of the main body of the device 10, while holding the battery case 90 in a manner that encloses it (see Figures 8 and 9).

[0033] (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 / back directions of the emergency lighting device 3 are defined in the orientation shown in Figure 12.

[0034] As shown in Figures 11 and 12, the emergency lighting device 3 comprises an emergency light source unit 4, a support member 7 that supports the emergency light source unit 4, a control device 6 that illuminates 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 comprises an operating gasket 55, a first gasket 53, and a second gasket 54. The operating gasket 55 will be described in detail in the following section, "(2.6) Operating Gasket".

[0035] As shown in Figures 13 and 14, the emergency light source unit 4 includes an LED module 40, a holder 41, a pair of terminal plates 42, a heat dissipation sheet 43, and a lens 44. The LED module 40 is configured by mounting at least one LED chip in the center of a rectangular flat mounting substrate 400. The LED chip is preferably a blue light-emitting diode that emits blue light. The mounting surface (bottom surface) of the mounting substrate 400 containing the LED chip is sealed with a sealing resin 401 that contains a fluorescent substance that converts the wavelength of the blue light emitted from the LED chip (see Figure 14). Furthermore, the mounting substrate 400 has electrodes on the bottom surfaces of a pair of diagonally opposite corners. 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 plate 42 of the pair of terminal plates 42.

[0036] The lens 44 is, for example, made of glass and has a lens body 440 and an annular outer flange portion 441 that protrudes outward from the periphery of the lens body 440 (see Figure 14). The lens 44 preferably has an aspherical incident surface 442 and an outgoing surface 443 (see Figure 13) and is a wide-angle light distribution lens that realizes a so-called batwing-shaped light distribution characteristic. However, the lens 44 may be formed of a synthetic resin material (for example, polycarbonate resin) in which glass fibers are mixed in to improve heat resistance (flame retardancy).

[0037] The heat dissipation sheet 43 is preferably made of a silicone resin sheet material having high thermal conductivity, electrical insulation, 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 Figure 13).

[0038] The holder 41 is preferably formed from a synthetic resin material such as polycarbonate resin, and is roughly rhombic in shape when viewed from above (see Figure 14). The holder 41 holds the LED module 40 and the lens 44 by overlapping the lens body 440 of the lens 44 with the light-emitting surface (bottom surface) of the LED module 40. The holder 41 also has a terminal plate holding portion 410. The terminal plate holding portion 410 is formed in an upward-extending rectangular tube shape and houses and holds a pair of terminal plates 42 inside (see Figures 13 and 14).

[0039] As shown in Figure 14, the control device 6 comprises a first circuit block 60, a second circuit block 61, and a case 62. The first circuit block 60 includes a rectangular first printed circuit board 600, several 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 several types of electronic components 601, the electronic components 601 with leads are inserted and mounted on the lower surface (component side) of the first printed circuit board 600. In addition, among the several types of electronic components 601, the surface-mount type electronic components 601 are surface-mounted on the upper surface (solder side) of the first printed circuit board 600 (see Figure 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 side of the first printed circuit board 600.

[0040] The output connector 602 has a pair of contacts 6020 (see Figure 14). Each contact 6020 of the output connector 602 is electrically connected to the corresponding terminal board 42 of the pair of terminal boards 42 of the emergency light source unit 4 via a relay wire.

[0041] The receiving connector 64 has a first contact receiver 641, a second contact receiver 642, and a base 640 (see Figure 14). The base 640 is formed in the shape of a rectangular plate from an electrically insulating synthetic resin material. The first contact receiver 641 and the second contact receiver 642 are formed in the shape of rods and are supported by the base 640, penetrating the base 640 in the thickness direction. The receiving connector 64 is electrically connected to the electrical cable of the emergency power supply unit 9 via an intermediate electrical cable.

[0042] The first circuit block 60 has a printed circuit composed of printed wiring formed on the first printed circuit board 600 and multiple types of electronic components 601 mounted on the component side and solder side of the first printed circuit board 600 (see Figures 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 composed of, for example, a self-excited switching power supply circuit such as a ringing choke converter, and is configured to convert the AC voltage input from the normal power supply to the input terminal block 603 into a DC voltage. That is, the charging circuit is a circuit for charging the 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 powered from the normal power supply. The lighting circuit is configured to constantize the DC current input from the emergency power supply unit 9 to the receiving connector 64 and supply the constant DC current to the emergency light source unit 4 through the output connector 602. The power outage detection circuit is configured to detect a power outage in 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 outage detection circuit has not detected a power outage in the normal power supply. The control circuit is also configured to stop the charging circuit and operate the lighting circuit when the power outage detection circuit has detected a power outage in the normal power supply.

[0043] The second circuit block 61 includes a rectangular plate-shaped second printed circuit board 610, a first push-button switch 611, a second push-button switch 612, a display element 613, a light-receiving element 614 (receiving unit), and a second connector 615 (see Figure 14). The second connector 615 is mounted on one end (front end) in the longitudinal direction on the underside of the second printed circuit board 610. The second push-button switch 612 is mounted behind the second connector 615 on the underside of the second printed circuit board 610. The first push-button switch 611 is mounted on the other end (rear end) in the longitudinal direction on the underside of the second printed circuit board 610.

[0044] 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 underside of the second printed circuit board 610. The light-receiving element 614 is configured to receive a control signal from an external source, for example, using infrared light as the communication medium, and to demodulate a transmission frame from the received control signal. This control signal is transmitted from a remote controller operated by an inspection worker performing periodic inspection work. Note that the term "control signal" here is not limited to infrared light, as long as it is a signal using electromagnetic waves as the medium. The control signal may be a signal using radio waves as the medium, for example, in addition to infrared light. 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 underside of the second printed circuit 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-back direction in the order of the first push-button switch 611, the display element 613, the light-receiving element 614, and the second push-button switch 612 (see Figure 1).

[0045] The second connector 615 is electrically connected to the first connector 604 of the first circuit block 60, for example, by a cable. The control circuit of the first circuit block 60 is configured to monitor the operating states (on and off) of the first push-button switch 611 and the second push-button switch 612, respectively, through the cable. The control circuit is also configured to receive the transmission frame of the control signal demodulated by the light-receiving element 614 through the cable. Furthermore, when the charging circuit of the first circuit block 60 is operating, the control circuit is configured to cause the display element 613 to light up by supplying current to it through the cable.

[0046] The control circuit is configured to perform a self-check operation (first inspection operation) when the front second push-button switch 612 is turned on or when it receives a transmission frame from the light-receiving element 614. The self-check operation involves stopping the charging circuit, operating the lighting circuit for a predetermined time (e.g., 30 or 60 minutes), then stopping the lighting circuit again and operating the charging circuit. When performing periodic inspection work, the inspection worker will initiate this self-check operation (first inspection operation) via the second push-button switch 612 or a remote controller.

[0047] Furthermore, the control circuit is configured to perform a different inspection operation (second inspection operation) from the self-check operation (first inspection operation) when the rear first push-button switch 611 is turned ON. This second inspection operation involves stopping the charging circuit and operating the lighting circuit while the first push-button switch 611 is ON. When the first push-button switch 611 is OFF, the lighting circuit is stopped and the charging circuit is operated. However, it is preferable that the control circuit is configured to also perform the second inspection operation when it receives a transmission frame from the light-receiving element 614 instructing it to perform the second inspection operation. When the user performs an inspection, they perform this inspection operation (second inspection operation) via the first push-button switch 611.

[0048] Here, it is desirable that the display element 613 displays the status related to at least the second inspection operation. For example, the display element 613 may be configured to emit green light when the charging circuit is operating and to turn off during the second inspection operation, that is, when the charging circuit is stopped and the lighting circuit is operating. However, it is desirable that the display element 613 be configured to turn off when the lighting circuit is operating, not only for the second inspection operation but also for the first inspection operation.

[0049] Case 62 comprises a first case 620 and a second case 621. The first case 620 has a bottom portion 6200 and a side wall portion 6201. The bottom portion 6200 is formed in an approximately rectangular box shape. The bottom portion 6200 is configured to support the solder surface of the first printed circuit board 600 of the first circuit block 60 from the thickness direction (up and down direction). The side wall portion 6201 is formed in a plate shape. The side wall portion 6201 is connected to the bottom portion 6200 via a hinge. Therefore, the side wall portion 6201 is configured to be rotatable relative to the bottom portion 6200 with the hinge as an axis. The side wall portion 6201 is also configured to support the end portion (left end portion) along the longitudinal direction of the second printed circuit board 610 of the second circuit block 61 by sandwiching it from the thickness direction.

[0050] The second case 621 is formed in a box shape with its top and left side open. The second case 621 is connected to the first case 620. The top of the second case 621 is closed by the bottom 6200 of the first case 620. The left side of the second case 621 is closed by the side wall 6201 of the first case 620 (see Figure 13).

[0051] The second case 621 has a protruding base portion 6210 that projects downward from the left end of its lower surface (see Figure 14). The protruding base portion 6210 is formed in an approximately truncated pyramidal shape. The protruding base 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 base portion 6210. The second transmission member 6215 is provided at the front end of the lower surface of the protruding base portion 6210. The first transmission member 6214 and the second transmission member 6215 are configured to be movable in the vertical direction relative to the lower surface of the protruding base portion 6210. In other words, the first transmission member 6214 is a member for transmitting the upward force received from the first operating portion 551 of the operating gasket 55, which will be described later, to the first push-button switch 611. The first push-button switch 611 is turned on when the first transmission member 6214 presses the push button of the first push-button switch 611. The second transmission member 6215 is a member that transmits the upward force received from the second operating part 552 of the operating gasket 55 (described later) to the second push-button switch 612. The second push-button switch 612 is turned on when the second transmission member 6215 presses the push button of the second push-button switch 612. Furthermore, the protruding base portion 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. In other words, the control signals transmitted from the remote controller reach the light-receiving element 614 through the front window 6216. Also, the light (green light) emitted by the display element 613 is radiated outside the case 62 through the rear window 6217.

[0052] The second case 621 also has three openings 6211, 6212, and 6213 at its right end. These three openings 6211, 6212, and 6213 are arranged in a line along the front-to-back direction (see Figure 14). The front opening 6211 faces the receiving connector 64 of the first circuit block 60. The rear opening 6213 is through which the input terminal block 603 is inserted. The central opening 6212 faces the output connector 602 (see Figure 14).

[0053] The support member 7 is formed in an approximately rectangular flat plate shape from a material generally considered to have high thermal conductivity, such as aluminum and aluminum alloys (see Figure 14). However, the support member 7 may be formed from a material other than aluminum and aluminum alloys. An insertion hole 70 penetrates the left end of the support member 7. The insertion hole 70 is formed in an oval shape with the front-to-back direction as its longitudinal direction. In addition, a rectangular insertion groove 71 is provided in the center of the front-to-back direction at the right end of the support member 7. Furthermore, three fitting grooves 72 are provided at the front end and rear end of the support member 7. The fitting groove 72 at the rear end of the support member 7 is located approximately in the left-to-right center of the support member 7. On the other hand, the two fitting grooves 72 at the front end of the support member 7 are located spaced apart on both the left and right sides relative to the left-to-right center of the support member 7. 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 to the right of the insertion hole 70 in the center of the support member 7 in the front-rear direction, and one screw insertion hole 75 is provided at both the front and rear ends of the right end of the support member 7.

[0054] The emergency light source unit 4 is attached to the lower surface of the support member 7 by screwing the holder 41 into two screw holes 74 provided in the support member 7 with two mounting screws 45 (see Figures 11 and 14). The terminal plate holding portion 410 of the holder 41 is inserted into the insertion groove 71 of the support member 7 and protrudes to the upper side of the support member 7 (see Figure 12). Then, the corresponding terminal plate 42 of the pair of terminal plates 42 and the corresponding contact 6020 of the pair of contacts 6020 of the output connector 602 are electrically connected via a relay wire. Furthermore, the LED module 40 is thermally coupled to the support member 7 via a heat dissipation sheet 43.

[0055] As shown in Figure 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 from die-cast aluminum.

[0056] The first housing 51 is formed in a semi-cylindrical shape, having a semi-cylindrical outer peripheral wall 510, a semi-circular first outer wall 511, and a semi-circular second outer wall 512 (see Figures 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 Figure 12). The left second inner wall 514 of the pair is formed to rise upward from the inner surface (top surface) of the outer peripheral wall 510, facing the first outer wall 511. The right second inner wall 514 of the pair is formed to rise upward from the top surface of the second outer wall 512. The pair of first inner walls 513 are formed to rise upward from the inner surface of the outer peripheral wall 510, facing each other in the front-rear direction. Of the pair of first inner walls 513, the one located at the front is connected to the front end of the pair of second inner walls 514 and the inner surface of the second outer wall 512, respectively. Also, of the pair of first inner walls 513, the one located at the rear is connected to the rear end of the pair of second inner walls 514 and the inner surface of the second outer wall 512, respectively.

[0057] A recess 500 is formed on the lower surface of the outer peripheral wall 510, at a position that is central and slightly to the right in the front-to-back direction. When viewed from below, the recess 500 is formed in an elliptical shape with its long axis aligned with the axial direction (left-to-right direction) of the outer peripheral wall 510 (see Figure 11). Therefore, both ends of the recess 500 in the long axis direction (left-to-right direction) are located lower than both ends of its short axis direction (front-to-back direction). Furthermore, a window 501 through which the lens body 440 of the lens 44 is inserted passes through the center (bottom) of the recess 500. When viewed from below, the window 501 is formed in an elliptical shape with its long axis aligned with the short axis direction (front-to-back direction) of the recess 500 (see Figure 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 Figure 12).

[0058] In this embodiment, the outer peripheral wall 510 has two holes located to the left of the recess 500, as shown in Figures 3 and 4. These two holes pass through the wall, aligned in the front-to-back direction. The rear hole has a round first operating hole 502 and an elongated indicator hole 503 connected to the first operating hole 502, forming a single keyhole-shaped hole overall. The front hole is a round second operating hole 504 with a smaller diameter than the first operating hole 502. The first housing 51 also has three first bosses 515 that protrude from the upper surface of the outer peripheral wall 510 so as to surround the window 501 (only two are shown in Figure 12). Each of these three first bosses 515 is formed in a frustoconical shape and has an open screw hole (female thread) at its upper end. Furthermore, the first housing 51 has a cylindrical projection wall 518 that protrudes from the upper surface of the outer peripheral wall 510 so as to surround the first operation hole 502, the display hole 503, and the second operation hole 504 (see Figure 12). The operating gasket 55 is attached to the first housing 51 by being fitted into the space surrounded by the projection wall 518.

[0059] The first housing 51 also has four ribs 517, one second boss 516, and a pair of projections 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 first inner wall 513 (see Figures 12 and 15). The second boss 516 is formed in a frustoconical shape with a screw hole (female thread) that is open at the upper end. The second boss 516 is also formed to rise upward from the inner surface of the outer peripheral wall 510 between the first outer wall 511 and the second inner wall 514 on the left side. The pair of projections 519 are formed in a frustoconical shape that protrude upward at both the front and rear ends on the inside (left side) of the second outer wall 512 (see Figure 12).

[0060] The second housing 52 is formed in an approximately rectangular box shape, as shown in Figures 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 and rear) along the longitudinal direction of the bottom wall 520. The pair of second side walls 522 protrude downward from both ends (left and right) along the short direction of the bottom wall 520.

[0061] A cylindrical projection 5200 protrudes downward from the center of the lower surface of the bottom wall 520 (see Figures 10 and 11). A cylindrical hole 5201 is provided inside the projection 5200. This hole 5201 penetrates the bottom wall 520 and the projection 5200 in the vertical direction, connecting the inside of the housing 5 to the outside of the housing 5 (see Figure 10). However, this hole 5201 is closed by a component generally called a rubber stopper with a hole (hereinafter referred to as a rubber stopper 57) (see Figure 10). The rubber stopper 57 is formed in a cylindrical shape from an elastic material such as silicone rubber. The rubber stopper 57 also has three holes 570, each having at least one wall in the middle (see Figure 12). In other words, each hole 570 of the rubber stopper 57 is configured to connect the inside of the housing 5 to the outside of the housing 5 when the wall is pierced by a needle or the like.

[0062] The bottom wall 520 also has three bosses 5202 and four ribs 5204. The three bosses 5202 are formed in a cylindrical shape that protrudes downward from the inner surface (bottom surface) of the bottom wall 520 (see Figure 11). Each boss 5202 has a screw hole 5203 that opens to the top surface of the bottom wall 520 (see Figures 10 and 12). Two of the four ribs 5204 are formed in a prismatic shape that protrudes downward from the bottom surface of the bottom wall 520 along the front first side wall 521 (see Figure 11). The remaining two of the four ribs 5204 are formed in a prismatic shape that protrudes downward from the bottom surface of the bottom wall 520 along the rear first side wall 521.

[0063] The left of the pair of second side walls 522 has a projection 5220 that protrudes to the left from the lower end of the center in the front-to-back direction on its outer surface (left side) (see Figures 10 and 11). The projection 5220 has a hole 5221 that penetrates in the vertical direction (see Figure 10).

[0064] The second housing 52 also has a fixing portion 523 and a protruding base portion 524. The fixing portion 523 is formed in the shape of a rectangular plate that protrudes to the right from the lower end of the rightmost of the pair of second side walls 522 (see Figure 11). A cylindrical hole 5230 penetrates vertically through the center of the fixing portion 523 in the front-to-back direction (see Figures 10 and 11). In addition, roughly wave-shaped recesses 5231 are provided on both the front and rear sides of the hole 5230 on the lower surface of the fixing portion 523. The protruding base portion 524 is formed in the shape of a rectangular box that protrudes to the right from the tip (right end) of the fixing portion 523 (see Figure 11). Cylindrical bosses 5240 are provided at both ends in the front-to-back direction of the tip (right end) of the protruding base portion 524. Each boss 5240 has a screw hole 5241 with an open top surface (see Figure 12).

[0065] As shown in Figures 11 and 12, the first gasket 53 is formed as a rectangular frame shape from an elastic material such as silicone rubber. As shown in Figures 16 and 17, the first gasket 53 has a frame portion 530, a fixing portion 531, a pair of wire holding portions 532, and a support portion 533. The frame portion 530 is formed as a rectangular frame shape with four chamfered corners. A recess 5300 that is indented upwards is provided on the lower surface of the frame portion 530 along its entire circumference. The fixing portion 531 is formed as a rectangular plate shape that protrudes inward (to the left) from the inner surface at one end (right end) in the longitudinal direction of the frame portion 530. A semicircular projection 5310 protrudes inward (to the left) from the center in the longitudinal direction (front-to-back direction) of the fixing portion 531. A cylindrical screw insertion hole 5311 penetrates vertically through the central part of the fixing portion 531 in the longitudinal direction, including the projection 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 portion 531 (see Figure 16). The support portion 533 protrudes downward from the inner edge of the recess 5300 on the lower surface of the frame portion 530, except for the right end portion of the frame portion 530 (the portion that overlaps with the fixing portion 531 when viewed from the vertical direction). The pair of wire holding portions 532 protrude upward from both the front and rear sides of the screw insertion hole 5311 on the upper surface of the fixing portion 531. Each wire holding portion 532 is formed in a columnar shape with a roughly corrugated bottom surface. Each wire holding portion 532 also has a pair of holes 5320 that penetrate in the axial direction (left-right direction) and three ribs 5321 that protrude from the circumferential surface of each wire holding portion 532 (see Figure 17).

[0066] The second gasket 54 is formed from an elastic material such as silicone rubber and has a frame-like shape with an elliptical opening 540 in the center (see Figure 11). However, it is preferable that the second gasket 54 is colored black so as not to transmit light. Furthermore, an annular peripheral wall 541 protrudes upward from the edge of the opening 540 on the upper surface of the second gasket 54 along its entire circumference (see Figure 12). In addition, two ribs with a triangular cross-sectional shape parallel to the vertical direction protrude from the upper surface of the peripheral wall 541, aligned along the radial direction. The second gasket 54 also 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). Furthermore, the two hook pieces 543 are formed in a hook shape and protrude upward from the right rear end and left front end of the second gasket 54.

[0067] The emergency lighting device 3 further includes a fixing member 56 (see Figures 11 and 12). The fixing member 56 is made of a rust-resistant metal plate such as stainless steel. The fixing member 56 has a pentagonal fixing piece 560 with its longitudinal direction in the front-to-back direction, a pair of leg pieces 561 that protrude upward from each side of the longitudinal end of the fixing piece 560, and a pair of mounting pieces 562 that protrude 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 approximately in the center of the fixing piece 560. A screw insertion hole 564 passes through one end (right end) of each mounting piece 562 (see Figure 12).

[0068] (2.6) Operating gasket The operating gasket 55 (sealing device) is attached to the first housing 51 so as to seal the keyhole-shaped hole formed by the first operating hole 502 and the indicator hole 503, and the second operating hole 504. The operating gasket 55 is made of an elastic material that transmits light, such as silicone rubber. As shown in Figures 2A and 2B, the operating gasket 55 has a sealing portion 550, a first operating portion 551, a second operating portion 552, and a transparent portion 553. The sealing portion 550, the first operating portion 551, the second operating portion 552, and the transparent portion 553 are all integrally formed. In this embodiment, the operating gasket 55 is, as an example, a single molded product made of uncolored silicone rubber.

[0069] 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 an approximately elliptical cylindrical shape. The seal portion 550 has a first end face 550A (one surface, i.e., the bottom surface) that faces the inner surface of the outer peripheral wall 510 of the first housing 51, and a second end face 550B (the top surface) that faces the control device 6. The first end face 550A of the seal portion 550 is formed as a curved surface with the same radius of curvature as the surface (bottom surface) of the outer peripheral wall 510 of the first housing 51. In addition, three ribs 559 with a triangular cross-sectional shape parallel to the vertical direction protrude from the outer peripheral surface of the seal portion 550, 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 that penetrates the seal portion 550 vertically at one end in the longitudinal direction of the seal portion 550. The second through-hole 555 is formed in a cylindrical shape that penetrates the seal portion 550 vertically at the other end in the longitudinal direction of the seal portion 550. The indicator groove 556 is formed in a rectangular tube shape with an open bottom surface between the first through-hole 554 and the second through-hole 555 of the seal portion 550. However, the lower part of the indicator groove 556 in the vertical direction is connected to the first through-hole 554 (see Figure 2B).

[0070] The seal portion 550 is formed in an asymmetrical shape in the front-to-back direction when viewed along the vertical direction. That is, the dimensional relationship is defined such that the width dimension in the front-to-back direction around the first operating portion 551 is larger than the width dimension in the front-to-back direction around the second operating portion 552. Therefore, when attaching the operating gasket 55 to the first housing 51, it is possible to prevent the seal portion 550 from being mistakenly fitted into the protruding wall 518 in the wrong front-to-back direction.

[0071] As shown in Figure 1, the transparent portion 553 is positioned opposite the display element 613 through the window 6217 and is configured to transmit light emitted from the display element 613. The transparent portion 553 is composed of the bottom wall (top wall) of the display groove 556 in the seal portion 550 (see Figures 2A and 2C). In other words, the presence of the display groove 556 makes the thickness dimension of the transparent portion 553 in the direction in which the display element 613 and the transparent portion 553 are aligned (vertical direction) sufficiently thinner than the thickness dimension of the seal portion 550. Specifically, the thickness dimension of the transparent portion 553 in the vertical direction is sufficiently thinner than the dimension from the first end face 550A to the second end face 550B of the seal portion 550. In short, the transparent portion 553 is positioned at a predetermined distance from the first end face 550A of the operating gasket 55, depending on the depth of the display groove 556. The greater the depth dimension of the display groove 556, the smaller the thickness dimension of the transmissive portion 553 becomes, thereby suppressing the attenuation of light emitted from the display element 613 by 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. Therefore, it is desirable to set the depth dimension of the display groove 556 to a level that does not damage the transmissive portion 553.

[0072] Furthermore, the transparent section 553 is positioned opposite the light-receiving element 614 through the window 6216. Therefore, attenuation of the control signal transmitted from the remote controller can also be suppressed.

[0073] The first operating section 551 is formed in a cylindrical shape. The first operating section 551 is housed in the first through hole 554 of the seal section 550 so that its axial direction is aligned vertically. The first operating section 551 is positioned between the first transmission member 6214 and the first operating hole 502 of the first housing 51. The first operating section 551 protrudes toward the first operating hole 502.

[0074] The second operating section 552 is formed in a cylindrical shape that is shorter than the first operating section 551. The second operating section 552 is housed in the second through hole 555 of the seal section 550 so that its axial direction is aligned vertically. The second operating section 552 is positioned between the second transmission member 6215 and the second operating hole 504 of the first housing 51. The second operating section 552 protrudes toward the second operating hole 504.

[0075] Furthermore, the operating gasket 55 has a first sealing portion 557 that seals the first through hole 554 and a second sealing portion 558 that seals the second through hole 555 (see Figure 2C). The first sealing portion 557 and the second sealing portion 558 are each formed in the shape of a hollow frustocone with two open bottom surfaces. The periphery of the large-diameter bottom surface of the first sealing portion 557 is connected to the inner circumferential surface of the first through hole 554 of the sealing portion 550. The periphery of the small-diameter bottom surface of the first sealing portion 557 is connected to the circumferential surface of the first operating portion 551. The periphery of the large-diameter bottom surface of the second sealing portion 558 is connected to the inner circumferential surface of the second through hole 555 of the sealing portion 550. The periphery of the small-diameter bottom surface of the second sealing portion 558 is connected to the circumferential surface of the second operating portion 552. The tip (lower end) of the first operating part 551 protrudes below the first end face 550A of the sealing part 550 from the first through hole 554 (see Figure 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 face 550A of the sealing part 550 (see Figure 2B). Here, the first sealing part 557 and the second sealing part 558 are made of an elastic material (silicone rubber) and are therefore elastically deformable. As a result, when an upward force is applied, the first operating part 551 and the second operating part 552 move upward, and then, when the upward force is removed, they move downward due to the elastic force of the first sealing part 557 and the second sealing part 558 and return to their initial state (the state shown in Figure 2C).

[0076] Here, the amount of protrusion of the first operating part 551 relative to the first operating hole 502 is different from the amount of protrusion of the second operating part 552 relative to the second operating hole 504. In this embodiment, the protruding tip (lower end) of the first operating part 551 is located outside the first housing 51 compared to the first operating hole 502. The protruding tip (lower end) of the second operating part 552 is located inside the first housing 51 compared to the second operating hole 504. Furthermore, the second operating hole 504 has a diameter dimension that prevents the insertion of a test finger. Here, the test finger is, for example, a simulated finger as defined in Appendix 4 1(2)c of the Japanese Electrical Appliances and Materials Safety Act. Because the diameter dimension of the second operating hole 504 is defined in this way, the second operating part 552 does not accept pressing operations by a human finger. In other words, in this embodiment, the second operating part 552 is provided on the premise of pressing operations by, for example, the tip of a tool used for inspection work. On the other hand, the diameter of the first operating hole 502 is defined to be such that the lower end of the first operating part 551 partially protrudes outside the first housing 51, as shown in Figure 1. In other words, in this embodiment, the first operating part 551 is provided on the premise of being operated by pressing with a human finger.

[0077] Therefore, the user can easily recognize the first operating part 551, which is designed to be pressed with a finger, and perform the second inspection operation. Furthermore, since the second operating hole 504 has a diameter that prevents the insertion of a test finger, it is possible to reduce the situation in which the user accidentally presses the second operating part 552, which corresponds to the first inspection operation (self-inspection operation), with their finger. Inspection workers can also easily recognize the second operating part 552, which is designed to be pressed with an inspection tool, and perform the first inspection operation (self-inspection operation).

[0078] Furthermore, the transparent section 553 is provided between the first operating section 551 and the second operating section 552 when the operating gasket 55 is viewed along the vertical direction. In particular, in the transparent section 553, the rear half of the first region 553A (see Figure 2A) facing the display element 613 that displays the status related to the second inspection operation is adjacent to the first operating section 551. This is due to the adjacent placement of the display element 613 and the first push-button switch 611 corresponding to the second inspection operation. This adjacent arrangement enhances the relationship between the second inspection operation and the display element 613. Therefore, user convenience during the execution of the second inspection operation is improved. In addition, this adjacent arrangement allows for miniaturization of the emergency lighting device 3 as a whole.

[0079] On the other hand, in the transmissive section 553, the front half of the second region 553B (see Figure 2A) facing the light-receiving element 614 is adjacent to the second operating section 552. This is due to the adjacent placement of the light-receiving element 614 and the second push-button switch 612. 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, this adjacent arrangement improves the relationship between the light-receiving element 614 and the second push-button switch 612. Consequently, the convenience of the inspection worker when executing the first inspection operation (self-inspection operation) is improved. Furthermore, this adjacent arrangement also allows for miniaturization of the emergency lighting device 3 as a whole. It is desirable that the second region 553B facing the light-receiving element 614 and the display hole 503 be located near the center in the front-to-back direction of the first housing 51, as shown in the illustrated example, in order to improve the reception sensitivity to control signals transmitted from the remote controller.

[0080] Incidentally, since the inside of the waterproof housing 5 is a sealed space, the gas inside the housing 5 may expand due to the heat emitted from the LED module 40 (light source), causing a pressure difference between the inside and outside of the housing 5. In other words, the internal pressure of the housing 5 may rise, potentially reducing the reliability of circuit components, etc. However, since the permeable part 553 in this embodiment is made of silicone rubber, the permeable part 553 does not allow liquids to pass through but allows gases to pass through. Furthermore, because the permeable part 553 is sufficiently thin, the gas that has expanded inside the housing 5 can be easily discharged to the outside through the thin-walled permeable part 553. Therefore, such a pressure difference can be effectively mitigated, and a decrease in the reliability of circuit components, etc. can be suppressed. Note that even if the permeable part 553 is not made of silicone rubber, if it is thin-walled, it will deform to expand outwards, so some degree of pressure difference mitigation can be expected.

[0081] (3) Assembly procedure for emergency lighting devices Next, the assembly procedure for the emergency lighting device 3 will be explained. However, the assembly work of the emergency light source unit 4 and the control device 6, as well as the work of attaching the emergency light source unit 4 to the support member 7, will be omitted. Also, the assembly procedure (A) to (H) described below is merely an example, and the order of some assembly work may be changed.

[0082] (A) Installation of the second gasket 54 onto the first housing 51 First, the worker performing the assembly attaches the second gasket 54 to the first housing 51. Specifically, the worker fits one of the four protrusions 505 provided on the lower surface of the outer peripheral wall 510 of the first housing 51 into the four fitting holes 542 of the second gasket 54.

[0083] (B) Installation of the operating gasket 55 onto the first housing 51 The operator attaches the operating gasket 55 to the first housing 51 by pushing the operating gasket 55 into the inside of the protruding wall 518 (see Figure 13). Inside the protruding wall 518, the three ribs 559 provided on the sealing portion 550 are deformed as they are crushed by the protruding wall 518. As a result, the inside of the protruding wall 518 is sealed by the operating gasket 55, so that water does not enter the first housing 51 through the first operating hole 502, the second operating hole 504 and the indicator hole 503 provided on the outer peripheral wall 510. The tip (lower end) of the first operating portion 551 of the operating gasket 55 protrudes from the surface (lower surface) of the outer peripheral wall 510 through the first operating hole 502 of the first housing 51 (see Figures 1 and 3).

[0084] (C) Installation of emergency light source unit 4 on the first enclosure 51 The worker inserts the lens body 440 of the emergency light source unit 4 into the window 501 of the first housing 51 through 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 support member 7 (see Figure 15). The worker then inserts screws 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 as they are crushed between the outer flange 441 of the lens 44 and the peripheral edge portion of the window 501 on 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 closed and water ingress into the first housing 51 from the window 501 is suppressed. The first operating portion 551, the second operating portion 552 and the permeable portion 553 of the operating gasket 55 face the insertion hole 70 of the support member 7 (see Figure 15).

[0085] (D) Installation of the first gasket 53 onto the first housing 51 The worker press-fits the upper ends of the pair of first inner walls 513 and the pair of second inner walls 514 of the first housing 51 into the recesses 5300 of the frame portion 530 of the first gasket 53. Furthermore, the worker press-fits the tip portion of the second boss 516 of the first housing 51 into the screw insertion holes 5311 of the fixing portion 531 of the first gasket 53, and fits the projections 519 of the first housing 51 into the fitting holes 5312 of the fixing portion 531. In this way, the first gasket 53 is attached to the first housing 51 (see Figure 15).

[0086] (E) Wiring to the control device The worker press-fits a pair of power lines 80 for the normal power supply into the hole 5320 of the rear wire holder 532 of the two wire holders 532 of the first gasket 53 and secures them (see Figures 18 and 19). The worker also press-fits a pair of wires 81 for the emergency power supply into the hole 5320 of the front wire holder 532 of the two wire holders 532 of the first gasket 53 and secures them (see Figure 18). The worker connects one end of the pair of power lines 80 to the input terminal block 603 of the control device 6. Furthermore, the worker electrically connects one end of the pair of wires 81 to the receiving connector 64 of the control device 6. Here, the control device 6 is housed inside the housing 5, positioned at one end (left end) in the longitudinal direction of the housing 5. Therefore, the emergency lighting device 3 can secure space for wiring the power lines 80 and wires 81 between the housing 5 and the control device 6 (see Figure 19). This wiring space allows for improved work efficiency in connecting the emergency lighting device 3 to the control device 6.

[0087] (F) Integration of the control device 6 into the second housing 52 The worker houses the control device 6 inside the second housing 52. At this time, the control device 6 is supported by multiple ribs 5204 of the second housing 52 (see Figure 13).

[0088] (G) Assembly of enclosure 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 part 523 of the second housing 52, and inserts the tip (upper end) of the second boss 516 of the first housing 51 into the hole 5221 of the projection 5220 of the second housing 52 (see Figure 13). At this time, the two wire holding parts 532 of the first gasket 53 are fitted into the corresponding recesses 5231 of the two recesses 5231 of the fixing part 523 of the second housing 52. Then, the worker inserts a screw into the hole 5230 of the fixing part 531 from the top 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 projection 5220 from the top side of the second housing 52 and screws the screw into the screw hole of the second boss 516. In other words, the first housing 51 and the second housing 52 are fastened 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 part 523 of the second housing 52 are sealed by the frame part 530 of the first gasket 53. In addition, the three ribs 5321 of the pair of wire holding parts 532 of the first gasket 53 deform so as to be crushed into the recesses 5231 of the fixing part 523 of the second housing 52, thereby sealing the pair of recesses 5231 of the second housing 52. Therefore, water ingress from the interface between the first housing 51 and the second housing 52 is suppressed by the first gasket 53.

[0089] (H) Mounting of the fixing member 56 to the housing 5 The worker places the pair of mounting pieces 562 of the fixing member 56 onto the protruding base portion 524 of the second housing 52, and screws the screws inserted through the screw insertion holes 564 of each mounting piece 562 into the corresponding screw holes 5241 of the two bosses 5240 of the protruding base portion 524. The fixing member 56 is then attached to the housing 5 with the fixing pieces 560 facing the protruding base portion 524 of the second housing 52 (see Figures 3 to 6).

[0090] The assembly of the emergency lighting device 3 is completed using the procedure described above.

[0091] Here, the first operating portion 551 of the operating gasket 55 faces the first transmission member 6214 of the control device 6, and the second operating portion 552 of the operating gasket 55 faces the second transmission member 6215 of the control device 6 (see Figure 1). Therefore, when the upward-moving first operating portion 551 pushes the first transmission member 6214 upward, the push button of the first push-button switch 611 is pressed by the first transmission member 6214, and the first push-button switch 611 is turned on. Also, when the upward-moving second operating portion 552 pushes the second transmission member 6215 upward, the push button of the second push-button switch 612 is pressed by the second transmission member 6215, and the second push-button switch 612 is turned on. In other words, the operating 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 pressed. Furthermore, the permeable portion 553 of the operating gasket 55 faces the display element 613 and the light-receiving element 614 through the insertion hole 70 of the support member 7 and two windows 6216 and 6217 provided in the case 62 of the control device 6 (see Figure 1). Therefore, the light (green light) emitted by the display element 613 is radiated outside the case 62 through the window 6217, and then radiated outside the housing 5 by passing through the permeable portion 553 of the operating gasket 55. Also, the control signal transmitted from the remote controller passes through the permeable portion 553 of the operating 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 operating gasket 55, attenuation of light emitted by the display element 613 and control signals transmitted from the remote controller when they pass through the transparent portion 553 can be suppressed.

[0092] 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 in the first housing 51 for extracting light emitted from the emergency light source unit 4, and a second gasket 54 that seals the window 501. Therefore, the emergency lighting device 3 can be easily provided with a structure for extracting light emitted from the LED module 40 of the emergency light source unit 4 from the waterproof housing 5.

[0093] Furthermore, the support member 7 restricts the displacement of the operating gasket 55 along the direction in which the first housing 51 and the support member 7 are aligned (vertical direction). In other words, since the displacement of the operating gasket 55 is restricted by the support member 7, it is prevented from falling off the protruding wall 518 of the first housing 51.

[0094] Furthermore, the second gasket 54 seals the gap between the window 501 of the first housing 51 and the lens 44 of the emergency light source unit 4, thereby blocking the gap between the window 501 and the holder 41. Therefore, the emergency lighting device 3 can suppress water ingress through the gap between the window 501 and the holder 41.

[0095] Here, the support portion 533 of the first gasket 53 is positioned within the housing 5 between each of the first inner walls 513 of the first housing 51 and the case 62 of the control device 6, thereby supporting the control device 6 (see Figure 1). Therefore, the support portion 533 of the first gasket 53 supports the control device 6, which helps to suppress rattling of the control device 6 within the housing 5.

[0096] In particular, in this embodiment, the operating gasket 55 not only provides a waterproofing function, but also functions to operate the first push-button switch 611 and the second push-button switch 612, and to transmit light from the display element 613. Therefore, the number of components can be kept to a minimum.

[0097] Next, the assembly procedure for lighting fixture 1 will be explained. However, the explanation of the process of attaching the emergency power supply unit 9 to the fixture body 10 will be omitted. Also, the assembly procedure (I) to (K) described below is merely an example, and the order of some assembly steps may be changed.

[0098] (I) Installation of emergency lighting device 3 onto fixture body 10 The worker installs the emergency lighting device 3 onto the fixture body 10 before installing the regular lighting device 2. First, the worker places the second housing 52 of the housing 5 of the emergency lighting device 3 into the fixture body 10. Next, the worker inserts screws from the top side of the top plate 11 of the fixture body 10 into each of the three screw insertion holes 110 (see Figure 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. In other words, the emergency lighting device 3 is screwed to the top plate 11 of the fixture body 10 with three screws.

[0099] (J) Wiring of control device 6 The worker connects the two wires 81 held in the wire holder 532 in front of the first gasket 53 to the connector provided on the electrical cable of the emergency power supply unit 9 (see Figure 18). However, the two power lines 80 held in the wire holder 532 behind the first gasket 53 (see Figures 18 and 19) are electrically connected to the power lines of the normal power supply during the installation of the lighting fixture 1.

[0100] (K) Installation of the regular lighting device 2 onto the fixture body 10 The worker inserts the upper part of the regular lighting device 2 (the part above the second fixing portion 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 portion 2214 of the right end member 221, and tightens the mounting screw that is inserted through the screw insertion hole 243 of the second fixing portion 241 through the hole 2216 provided in the bottom wall of the recess 2215. When the worker tightens the mounting screw with 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 portion 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 portion 2214 of the left end member 221, and tightens the mounting screw that is inserted through the screw insertion hole 243 of the second fixing portion 241 through the hole 2216 provided in the bottom wall of the recess 2215. When the worker tightens the mounting screw with 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 portion 241 of the left mounting fixture 24 is screwed to the fixing piece 560 of the fixing member 56. Finally, the worker covers the opening of the recess 2215 exposed on the surface of the cover portion 2214 with tape or the like to conceal it. In this way, the lighting fixture assembly is completed when the regular lighting device 2 is attached to the fixture body 10 (see Figure 7).

[0101] (4) Variations Several variations are listed below. The embodiment described above will be referred to as the "basic example" below. The variations described below can also be applied in appropriate combination with the basic example.

[0102] In the basic example, the display groove 556 is provided on the first end face 550A (bottom surface) of the seal portion 550, so the transparent portion 553 is positioned recessed at a predetermined distance from the first end face 550A. However, this is not limited to this, and the display groove 556 may be provided on the second end face 550B (top surface) of the seal portion 550, so that the surface of the transparent portion 553 is flush with the first end face 550A (bottom surface). In this case, the visible range of the light emitted from the display element 613 is wider than in the basic example, thus improving convenience. However, the possibility of the transparent portion 553 being damaged by contact with a person's finger, etc., increases, so the basic example is preferable when waterproofing is a priority.

[0103] In the basic example, there are two push-button switches (first push-button switch 611 and second push-button switch 612), but there may be only one or three or more. Also, depending on the number of push-button switches, the number of operating parts of the operating gasket 55 may be one or three or more.

[0104] In the basic example, the operating gasket 55 is made of uncolored silicone rubber, but it may be partially colored. However, it is desirable that at least the transmissive portion 553 be uncolored in order to transmit light.

[0105] In the basic example, the sealing portion 550 of the operating gasket 55 has three ribs 559 on its outer circumferential surface. The three ribs 559 are deformed by being crushed against the protruding wall 518 of the first housing 51, thereby suppressing water ingress into the first housing 51 through the first operating hole 502, the second operating hole 504, and the indicator hole 503. However, this is not limited to this, and the sealing portion 550 of the operating gasket 55 may have a first flange protruding outward from the periphery of the second end face 550B (upper surface) instead of having three ribs 559. In this case, the first flange is pressed against the upper edge of the protruding wall 518, thereby suppressing water ingress into the first housing 51. Furthermore, the sealing portion 550 of the operating gasket 55 may have, in addition to the first flange, one or more second flanges formed on the first end face 550A (bottom face) side to correspond to the first operating hole 502, the second operating hole 504, and the indicator hole 503, respectively. In this case, the second flanges are pressed against the periphery of the corresponding holes from the outside of the first housing 51, thereby suppressing water ingress into the first housing 51. However, sufficient suppression of water ingress can be expected even if only the first flange is provided.

[0106] (5) Advantages As described above, the emergency lighting device 3 according to the first embodiment comprises an emergency light source unit 4, a control device 6 for lighting the emergency light source unit 4, a housing 5 for housing 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 operation input and a display element 613 for emitting display light. 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 close the first hole and the second hole. The sealing device includes a sealing portion 550 that prevents water from entering the housing 5 through the first and second holes, an operating portion (first operating portion 551 or second operating portion 552) for pressing the push-button switch, and a transparent portion 553 that transmits light from the display element 613. The sealing portion 550, the operating portion, and the transparent portion 553 are formed as a single unit.

[0107] According to the first embodiment, the sealing device not only has a waterproofing function but also a function to operate the push-button switch and a function to transmit light from the display element 613. Therefore, the increase in the number of components can be kept to a minimum.

[0108] With respect to the emergency lighting device 3 according to the second embodiment, in the first embodiment, it is preferable that the first hole (first operation hole 502) and the second hole (indication hole 503) are connected to each other and form a single hole.

[0109] According to the second embodiment, 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 receives a press operation of the push-button switch and performs a certain inspection operation, and displays the inspection result or operating status on the display element 613, the above relationship can be improved by providing the first hole and the second hole as a single hole. Therefore, convenience is improved.

[0110] With respect to the emergency lighting device 3 according to the third embodiment, in the first or second embodiment, the sealing device (operating gasket 55) is preferably made of silicone rubber.

[0111] According to a third embodiment, a flexible sealing device can be provided. In particular, for example, it can provide a good tactile feel when a person presses the operating part with their finger. Furthermore, it can provide an operating part that can be smoothly elastically deformed toward a push-button switch, thereby improving operability.

[0112] Regarding the emergency lighting device 3 according to the fourth embodiment, in any one of the first to third embodiments, it is preferable that the thickness dimension of the transparent portion 553 in the direction in which the display element 613 and the transparent portion 553 are aligned is thinner than the thickness dimension of the seal portion 550. According to the fourth embodiment, attenuation of light emitted from the display element 613 by the transparent portion 553 can be suppressed. Furthermore, for example, even if the gas inside the housing 5 expands due to the heat emitted from the light source of the emergency light source unit 4, and a pressure difference is created between the inside and outside of the housing 5, the thin transparent portion 553 can deform to bulge outwards, thereby mitigating the pressure difference. Therefore, a decrease in the reliability of circuit components, etc., due to the pressure difference can be suppressed. In particular, if the transparent portion 553 is made of, for example, silicone rubber, the expanded gas can be discharged to the outside, so the pressure difference can be mitigated even more effectively.

[0113] With respect to the emergency lighting device 3 according to the fifth embodiment, in the fourth embodiment, 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 transmissive portion 553 is flush with the surface of the sealing portion 550. According to the fifth embodiment, the visible range of the light emitted from the display element 613 is widened, thereby improving convenience.

[0114] With respect to the emergency lighting device 3 according to the sixth embodiment, in the fourth embodiment, 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 transparent portion 553 is positioned in a recessed location at a predetermined distance from the one surface of the sealing portion 550. According to the sixth embodiment, it is possible to reduce situations in which a person's finger or the like comes into contact with the transparent portion 553 and damages the transparent portion 553. In other words, it is possible to suppress a decrease in the waterproof function.

[0115] With respect to the emergency lighting device 3 according to the seventh embodiment, in any one of the first to sixth embodiments, 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 transmissive section 553. According to the seventh embodiment, the control device 6 can, for example, perform a predetermined inspection operation in response to the reception of a control signal. Furthermore, since the control signal is received through the transmissive section 553, attenuation of the control signal can be suppressed. In particular, since both the light from the display element 613 and the control signal pass through the transmissive section 553, it also contributes to miniaturization of the emergency lighting device 3 as a whole.

[0116] Regarding the emergency lighting device 3 according to the eighth embodiment, in any one of the first to seventh embodiments, it is preferable that the control device 6 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 push-button switch. The second push-button switch 612 receives an operation input. It is preferable that the housing 5 further has a third hole (second operation hole 504) at a position opposite to the second push-button switch 612. It is preferable that the sealing device (operation gasket 55) has, as the operation part, a first operation part 551 for pressing the first push-button switch 611 and a second operation part 552 for pressing the second push-button switch 612. It is preferable that the sealing device is attached to the housing 5 so as to close the first hole (first operation hole 502), the second hole (indication hole 503), and the third hole.

[0117] The sealing portion 550 preferably prevents water from entering the housing 5 through the first, second, and third holes. The sealing portion 550, the first operating portion 551, the second operating portion 552, and the permeable portion 553 are preferably formed as a single unit. The first operating portion 551 and the second operating portion 552 preferably protrude toward the first and third holes, respectively. The amount of protrusion of the first operating portion 551 is preferably different from the amount of protrusion of the second operating portion 552.

[0118] According to the eighth aspect, the first operating section 551 and the second operating section 552 can be easily distinguished by the difference in their protrusion amounts. In particular, even when the control device 6 performs different operations on the first operating section 551 and the second operating section 552, it is possible to reduce situations in which an unintended operation is performed due to pressing the wrong operating section.

[0119] With respect to the emergency lighting device 3 according to the ninth embodiment, in the eighth embodiment, it is preferable that the protruding tip of the first operating section 551 is located outside the housing 5 beyond the first hole (first operating hole 502). It is preferable that the protruding tip of the second operating section 552 is located inside the housing 5 beyond the third hole (second operating hole 504).

[0120] According to the ninth aspect, the first operating section 551 and the second operating section 552 can be distinguished even more easily. In particular, since the tip of the first operating section 551 is located outside the housing 5 beyond the first hole, the user can easily recognize that the first operating section 551 is designed to be pressed by a human finger. Therefore, convenience is improved.

[0121] The lighting fixture 1 according to the 10th embodiment comprises an emergency lighting device 3 according to any one of the first to 9th embodiments, and a fixture body 10 that supports the emergency lighting device 3. According to the 10th embodiment, it is possible to provide a lighting fixture 1 equipped with an emergency lighting device 3 that has a waterproof function while suppressing an increase in the number of components.

[0122] In the 11th embodiment, the lighting fixture 1 preferably further comprises a normal lighting device 2 that is supported by the fixture body 10 and provides normal lighting, as in the 10th embodiment. According to the 11th embodiment, a lighting fixture that serves both normal and emergency lighting can be provided.

[0123] The lighting fixture 1 according to the 12th embodiment preferably further comprises an emergency power supply (emergency power supply unit 9) supported by the fixture body 10 and supplying power to the emergency lighting device 3, as in the 10th or 11th embodiment. According to the 12th embodiment, it can be easily installed in buildings and facilities that do not have emergency power supply equipment. [Explanation of Symbols]

[0124] 1 Lighting fixtures 2 Regular lighting equipment 3 Emergency lighting system 4. Emergency light source unit 5 cabinets 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 elements 614 Light-receiving element (receiving unit) 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. Main body of the device

Claims

1. 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 illuminates the emergency light source unit, a light-receiving element that uses infrared light as a communication medium to receive control signals related to inspection operations from an external source, and a push-button switch for receiving operation inputs, A housing that houses the emergency light source unit and the control device, A transparent portion is arranged opposite the light-receiving element in a manner that seals the housing, and transmits the control signal using the infrared light as a communication medium, The sealing part, An operating section for pressing the aforementioned push-button switch, Equipped with, The housing has a window through which the lens body of the lens is inserted and exposed to the outside, and a hole separate from the window that is located opposite the light-receiving element. The sealing portion prevents water from entering the housing through the hole. The sealing portion and the permeable portion are formed integrally and are attached to the housing so as to close the hole. The housing has a first hole at a position opposite to the push button switch, and a second hole at a position opposite to the light-receiving element, The operating section and the transparent section are formed as a single unit and are attached to the housing so as to close the first hole and the second hole. An emergency lighting device characterized by the following features.

2. 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 illuminates the emergency light source unit and receives control signals related to inspection operations from an external source using infrared light as a communication medium, and a display element that emits light for display, A housing that houses the emergency light source unit and the control device, A transparent portion is arranged opposite the light-receiving element in a manner that seals the housing, and transmits the control signal using the infrared light as a communication medium, The sealing part, Equipped with, The housing has a window through which the lens body of the lens is inserted and exposed to the outside, and a hole separate from the window that is provided at a position facing the light-receiving element and the display element. The sealing portion prevents water from entering the housing through the hole. The sealing portion and the permeable portion are formed as a single unit and are attached to the housing so as to close the hole. An emergency lighting device characterized by the following features.

3. The thickness of the transparent portion in the direction in which the light-receiving element and the transparent portion are aligned is thinner than the thickness of the sealing portion. The emergency lighting device according to claim 1 or 2.

4. The sealing portion has one surface facing the inner surface of the housing, The permeable portion is flush with the one surface of the sealing portion. The emergency lighting device according to claim 3.

5. The sealing portion has one surface facing the inner surface of the housing, The permeable portion is positioned in a recessed location at a predetermined distance from one surface of the sealing portion. The emergency lighting device according to claim 3.

6. The permeable portion is made of silicone rubber. An emergency lighting device according to any one of claims 1 to 5, characterized by the features described herein.

7. The aforementioned emergency light source unit lights up when power is supplied from the emergency power supply. An emergency lighting device according to any one of claims 1 to 6, characterized by the features described herein.

8. An emergency lighting device according to any one of claims 1 to 7, The fixture body that supports the emergency lighting device and Equipped with A lighting fixture characterized by the following features.

9. The fixture further comprises a regular lighting device that is supported by the aforementioned fixture body and provides regular lighting. The lighting fixture according to feature 8.

10. The system further comprises an emergency power supply supported by the fixture body and supplying power to the emergency lighting device. The lighting fixture according to claim 8 or 9.

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