JP2018133177A - Lighting device and lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve utilization efficiency of light.SOLUTION: An emergency lighting device includes: an LED module 40; a lens 44 for controlling light distribution of the LED module 40; and a housing 5 for storing the LED module 40 and the lens 44. The lens 44 has: a lens body 440; and an outer flange part 441 protruding in a direction being separated from an optical axis X1 on a peripheral surface surrounding the optical axis X1 of the lens body 440. The housing 5 has: a window 501 in which the lens 44 is inserted; and a standing wall 507 standing in a direction approaching the outer flange part 441 from the edge of the window 501 across the whole circumference of the window 501. An opposing surface 444 opposing to the standing wall 507 across the whole circumference of the standing wall 507 along a direction crossing the optical axis X1 out of an emission surface 443 is constituted so as to refract light L1 emitted from the opposing surface 444 in a direction being away from the standing wall 507.SELECTED DRAWING: Figure 20

Description

  The present invention relates to a lighting device and a lighting fixture, and more particularly to a lighting device having an optical member for controlling light distribution and a lighting fixture including the lighting device.

  As a conventional example, a lighting apparatus described in Patent Document 1 is illustrated. This conventional example includes an instrument body, a regular light source unit for regular illumination, and an emergency illumination device for emergency illumination. The instrument main body is formed in a long and rectangular box shape whose bottom surface is open. The common light source unit includes a plurality of LED modules, an attachment member to which each LED module is attached, a cover that is attached to the attachment member so as to cover each LED module, and a power supply device that lights each LED module. . The common light source unit is accommodated in the instrument body such that the cover is exposed from the lower surface of the instrument body.

  The emergency lighting device includes an emergency light source unit. The emergency light source unit includes an LED module, a lens, a cover, a support member, an emergency power source (storage battery), and the like. A lens is disposed in front of the LED module. The lens is a wide-angle light distribution lens having an aspherical entrance surface and an exit surface and realizing a so-called batwing-like light distribution characteristic. The lens has a pair of flanges that protrude outward from the peripheral edges on the lower side and the left and right sides. The cover is disposed in front of the LED module so that the lens is exposed to the front. The emergency power supply is disposed behind the LED module. The LED module is supported by a support member. The lens is supported by the support member by hooking the claws of the two pairs of hook portions provided on the support member to the pair of flanges.

JP-A-2006-134208

  By the way, the illuminating device and the luminaire having an optical member such as a lens can improve the ratio (light utilization efficiency) of the light (light quantity) irradiated to the illumination space among the light whose light distribution is controlled by the optical member. It is required to plan.

  The objective of this invention is providing the illuminating device and lighting fixture which can aim at the improvement of the utilization efficiency of light.

  An illumination device according to one embodiment of the present invention includes a solid light source, an optical member that controls light distribution of the solid light source, and a housing that houses the solid light source and the optical member. The optical member includes an optical element having an incident surface on which light emitted from the solid light source is incident and an output surface from which light incident on the incident surface is emitted, and the optical axis on a peripheral surface surrounding the optical axis of the optical element. And an outer flange portion protruding in a direction away from the head. The housing includes a window through which the optical element is inserted, and a standing wall that rises from the edge of the window toward the outer casing over the entire circumference of the window. A facing surface that faces the standing wall along the entire circumference of the standing wall along a direction intersecting the optical axis among the emitting surfaces so as to refract the light emitted from the facing surface in a direction away from the standing wall. It is configured.

  The lighting fixture which concerns on 1 aspect of this invention is equipped with the illuminating device and the fixture main body which accommodates the said illuminating device.

  The lighting device and the lighting fixture of the present invention have an effect that it is possible to improve the light use efficiency.

FIG. 1 is a perspective view of a lighting fixture according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the luminaire described above. FIG. 3 is an exploded perspective view in which the common lighting device of the lighting fixture is omitted. FIG. 4 is a cross-sectional perspective view of a main part of the above-described lighting fixture. FIG. 5 is an exploded perspective view seen from below of an emergency lighting device that is a lighting device according to an embodiment of the present invention. FIG. 6 is an exploded perspective view seen from above the emergency lighting device. FIG. 7 is a longitudinal sectional view of the emergency lighting device of the same. FIG. 8 is an exploded perspective view of the emergency light source unit and the control device in the emergency lighting device of the same. FIG. 9 is a plan view of the main part including the first housing of the emergency lighting device of the above. FIG. 10 is a perspective view seen from below the first gasket in the emergency lighting device same as above. FIG. 11: is the perspective view seen from the upper direction of the 1st gasket in the emergency illuminating device same as the above. FIG. 12A is a perspective view seen from above the third gasket in the emergency lighting device same as above. FIG. 12B is a perspective view of the emergency lighting device as seen from below the third gasket. FIG. 12C is a cross-sectional view of a third gasket in the emergency lighting device same as above. FIG. 13: is the perspective view seen from the downward direction of the emergency illuminating device same as the above. FIG. 14 is a front view of the emergency lighting device of the above. FIG. 15 is a side view of the emergency lighting apparatus of the same. FIG. 16 is a side view of the emergency lighting apparatus of the above. FIG. 17 is a cross-sectional view of the emergency lighting device of the same. FIG. 18: is the perspective view seen from the longitudinal direction of the state which removed the regular lighting apparatus of the lighting fixture same as the above. FIG. 19 is a cross-sectional view of a main part in a state in which the regular lighting device of the above lighting fixture is removed. FIG. 20 is a cross-sectional view of a main part of the emergency lighting device of the same. FIG. 21 is a cross-sectional view of a main part in Modification 1 of the emergency lighting device according to the first embodiment. FIG. 22 is a cross-sectional view of a main part in a second modification of the emergency lighting device according to the first embodiment.

  An embodiment of a lighting device and one embodiment of a lighting fixture according to the present invention will be described in detail with reference to the drawings. The lighting fixture 1 of this embodiment is a direct-attached type that is directly attached to, for example, the ceiling of an open corridor of an apartment house, the eaves of an outdoor bicycle parking lot, the eaves of a truck yard in a warehouse, or the ceiling of a humid food factory. Although it is a lighting fixture, it may be an embedded lighting fixture or a lighting fixture attached to a wall. The configurations described in the following embodiments are merely examples of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made according to design and the like as long as the effects of the present invention can be achieved.

  The lighting fixture 1 of this embodiment is provided with the emergency lighting apparatus 3 which performs emergency lighting, and the fixture main body 10 which accommodates the emergency lighting apparatus 3, as shown in FIGS. The emergency lighting device 3 corresponds to the lighting device of the present embodiment. Furthermore, the luminaire 1 includes a service lighting device 2 that performs service lighting and an emergency power supply unit 9 that supplies power to the emergency lighting device 3. In the following description, unless otherwise specified, the vertical and horizontal directions and the front and rear directions of the lighting fixture 1 are defined in the orientation shown in FIG.

  The instrument body 10 has a long rectangular flat top plate 11 and a pair of first side plates 12 projecting downward from each of two end edges along the longitudinal direction (left-right direction) of the top plate 11. doing. The instrument body 10 further includes a pair of second side plates 13 projecting downward from each of two end edges along the short direction (front-rear direction) of the top plate 11, and diagonally downward from the lower ends of the first side plates 12. And a pair of reflectors 14 projecting from each other. That is, the instrument body 10 is formed in a rectangular box shape having an opening on the lower surface facing the top plate 11. The top plate 11 has a hole through which an electric wire passes in the approximate center in the left-right direction. Moreover, the top plate 11 has a hole 111 for passing a suspension bolt (see FIG. 2). In addition, the attachment piece 130 which protrudes in parallel with the top plate 11 is each provided in the lower end of each 2nd side board 13 (refer FIG. 3). Each attachment piece 130 is provided with a screw hole (female screw) 131.

  As shown in FIGS. 2 and 4, the regular lighting device 2 includes an LED module 20, a support plate 21 that supports the LED module 20, a case 22 that houses the support plate 21 that supports the LED module 20, and A power supply device, two fixtures 23 and two fixtures 24 are provided.

  The LED module 20 includes a substrate (printed wiring board) 200 formed in a rectangular plate shape that is long in the left-right direction, and a plurality of LEDs (Light Emitting Diodes) 201 mounted on the lower surface of the substrate 200. The plurality of LEDs 201 are mounted so as to be arranged at regular intervals along the longitudinal direction of the substrate 200 (see FIG. 4). The plurality of LEDs 201 are electrically connected in series via a conductor (copper foil) formed on the substrate 200. Note that the conductor formed on the substrate 200 is electrically connected to the output terminal of the power supply device via a connector mounted on the substrate 200 and an electric wire electrically connected to the connector.

  The support plate 21 is formed in a box shape by bending a sheet metal (see FIG. 4). That is, the support plate 21 includes a bottom plate 210 that is formed in a long and rectangular plate shape, and a pair of side plates that rises upward along the longitudinal direction from both ends in the short direction (front-rear direction) of the bottom plate 210. The LED module 20 is attached to the lower surface of the bottom plate 210 (see FIG. 4).

  The power supply device is configured to turn on the LED module 20 by converting AC power supplied from a normal power source (for example, commercial AC power source) into DC power, and supplying the converted DC power to the LED module 20. ing. The power supply device is attached to the upper surface of the bottom plate 210 of the support plate 21. The LED module 20 and the power supply device are electrically connected by an electric wire inserted through an insertion hole provided in the bottom plate 210.

  The case 22 includes a case main body 220, two end members 221, and two gaskets (fixing seals) 222 (see FIGS. 2 and 4). The case body 220 is formed in a long cylindrical shape with both ends in the longitudinal direction opened by a synthetic resin material, and is configured to accommodate the LED module 20 and the support plate 21 therein (see FIG. 4). The support plate 21 is fixed to the case main body 220 by two fixing tools 23.

  As shown in FIGS. 2 and 4, the end member 221 includes a first bottom wall 2210, a second bottom wall 2211, an outer peripheral wall 2212, an inner peripheral wall 2213, and a cover portion 2214. The first bottom wall 2210 is formed in the same shape as the cross-sectional shape parallel to the front-rear direction and the vertical direction of the case body 220. The second bottom wall 2211 is formed in a substantially semicircular shape. The outer peripheral wall 2212 is formed in a cylindrical shape that protrudes from the periphery of the first bottom wall 2210 over the entire periphery. The inner peripheral wall 2213 is formed in a cylindrical shape that protrudes from the first bottom wall 2210 so as to face the outer peripheral wall 2212. The cover portion 2214 protrudes in the thickness direction of the second bottom wall 2211 from the arcuate portion of the peripheral edge of the second bottom wall 2211 and the surface thereof is the same curved surface (substantially semi-cylindrical surface) as the surface of the outer peripheral wall 2212. It is formed in a shape (see FIG. 2). A cylindrical recess 2215 is provided at the center of the lower surface of the cover portion 2214 (see FIG. 2). Further, a circular hole 2216 is formed in the bottom wall of the recess 2215 (see FIG. 4).

  The gasket 222 is formed in a shape (cylindrical shape) similar to the outer peripheral wall 2212 and the inner peripheral wall 2213 of the end member 221 with an elastic material such as silicone resin. The gasket 222 is press-fitted into a space surrounded by the first bottom wall 2210, the outer peripheral wall 2212, and the inner peripheral wall 2213 of the end member 221. Further, the gasket 222 is provided with a groove 2220 over the entire circumference on the surface exposed from the tips of the outer peripheral wall 2212 and the inner peripheral wall 2213. And the edge part in the longitudinal direction of case main body 220 is press-fit in this groove | channel 2220 (refer FIG. 4). That is, the end member 221 and the case main body 220 are sealed by the gasket 222, and entry of water (rain water or the like) into the case main body 220 is suppressed.

  The fixture 23 includes a fixed piece 230, a pair of attachment pieces 231 and a pair of side walls 232 (see FIG. 4). However, the two fixtures 23 all have the same structure. The fixed piece 230 is formed in a rectangular flat plate shape. The pair of attachment pieces 231 have a rectangular flat plate shape and are provided so as to protrude downward from the front end and the rear end of the fixed piece 230. The pair of side walls 232 have a rectangular flat plate shape and are provided so as to protrude downward from the left end and the right end of the fixed piece 230. One fixture 23 is attached to the left end of the upper surface of the support plate 21. Another fixture 23 is attached to the right end of the upper surface of the support plate 21. Each fixing tool 23 fixes the support plate 21 to the case main body 220 by screwing the fixing piece 230 and the case main body 220 while being accommodated in the case main body 220.

  As shown in FIG. 4, the fixture 24 includes a first fixing portion 240, a second fixing portion 241, and a connecting portion 242 that connects the first fixing portion 240 and the second fixing portion 241. The first fixing part 240, the second fixing part 241 and the connecting part 242 are integrally formed by processing a metal plate. However, the two fixtures 24 all have the same structure. The 2nd fixing | fixed part 241 has the long hole-shaped screw penetration hole 243 in the approximate center of the front-back direction (refer FIG. 4). The first fixing portion 240 of the fixture 24 is screwed to the fixing piece 230 of the fixture 23 from the outside of the case 22.

  As shown in FIGS. 2 and 3, the emergency power supply unit 9 includes a plurality of dry battery type storage batteries, a battery case 90 that accommodates the plurality of storage batteries, an electric cable drawn from the battery case 90, a battery It has a fixture 91 for fixing the case 90 to the instrument body 10. The battery case 90 is formed in a cylindrical shape having an oval cross-sectional shape perpendicular to the axial direction. Each storage battery is, for example, a dry battery type nickel metal hydride battery. The plurality of storage batteries are accommodated in the battery case 90 so that the axial direction thereof is aligned with the axial direction of the battery case 90. Each storage battery is electrically connected in series by a plurality of terminal plates. The electric cable includes a first electric wire electrically connected to one end (positive electrode) of a series circuit of the plurality of storage batteries, and a second electric wire electrically connected to the other end (negative electrode) of the series circuit of the plurality of storage batteries. Electric wire. A connector is provided at the tip of the electric cable. The fixture 91 is formed in a box shape by a metal plate. The fixing bracket 91 is fixed to the lower surface of the top plate 11 of the instrument body 10 while holding the battery case 90 so as to be wrapped (see FIGS. 2 and 3).

  Next, the emergency lighting device 3 of the present embodiment will be described in detail with reference to FIGS. In the following description, unless otherwise specified, the vertical direction, the left / right direction, and the front / rear direction of the emergency lighting device 3 are defined in the orientation shown in FIG.

  As shown in FIGS. 5 and 6, the emergency lighting device 3 includes an emergency light source unit 4, a support member 7 that supports the emergency light source unit 4, a control device 6 that lights the emergency light source unit 4, An emergency light source unit 4, a support member 7, and a housing 5 that accommodates the control device 6 are provided. The emergency lighting device 3 further includes a first gasket 53, a second gasket 54, and a third gasket 55.

  As shown in FIGS. 7 and 8, the emergency light source unit 4 includes an LED module 40, a holder 41, a pair of terminal plates 42, a heat radiation sheet 43, and a lens 44 corresponding to an optical member. Yes. The LED module 40 is configured by mounting at least one LED chip at the center of a rectangular flat plate-shaped mounting substrate 400. The LED chip is preferably a blue light emitting diode that emits blue light, for example. In addition, the mounting surface (lower surface) of the mounting substrate 400 including the LED chip is sealed with a sealing resin 401 mixed with a fluorescent material that converts the wavelength of blue light emitted from the LED chip (see FIG. 8). . Further, the mounting substrate 400 has electrodes on the lower surfaces of the pair of corners at the diagonal positions. 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. Further, these two electrodes are electrically connected to the corresponding terminal plate 42 of the pair of terminal plates 42.

  The lens 44 is made of, for example, glass, and includes a lens body 440 that is an optical element, and an annular outer flange portion 441 that protrudes outward from the periphery of the lens body 440 (see FIG. 8). The lens body 440 is formed in an approximately elliptic frustum shape (see FIG. 8). The lens body 440 is preferably a wide-angle light distribution lens having an aspherical incident surface 442 and an output surface 443 (see FIG. 7) and realizing a so-called batwing-shaped light distribution characteristic. However, the lens 44 may be formed of a synthetic resin material (for example, a polycarbonate resin) whose heat resistance (flame resistance) is improved by mixing glass fibers.

  The heat radiation sheet 43 is preferably composed of a sheet material made of silicone resin 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 FIG. 7).

  The holder 41 is preferably made of a synthetic resin material such as a polycarbonate resin in a roughly rhombus shape when viewed from above and below (see FIG. 8). The holder 41 holds the LED module 40 and the lens 44 so that the lens main body 440 of the lens 44 overlaps the light emitting surface (lower surface) of the LED module 40. The holder 41 has a terminal board holding part 410. The terminal board holding part 410 is formed in a rectangular tube shape extending upward, and accommodates and holds a pair of terminal boards 42 therein (see FIGS. 7 and 8).

  As shown in FIG. 8, the control device 6 includes a first circuit block 60, a second circuit block 61, and a case 62. The first circuit block 60 includes a rectangular printed first printed wiring board 600, a plurality of types of electronic components 601, a receiving connector 64, an input terminal block 603, an output connector 602, and a first connector 604. Among the plurality of types of electronic components 601, the electronic component 601 with leads is inserted and mounted on the lower surface (component surface) of the first printed wiring board 600. Further, among the plurality of types of electronic components 601, the surface-mount type electronic component 601 is surface-mounted on the upper surface (solder surface) of the first printed wiring board 600 (see FIG. 7). However, the receiving side connector 64, the input terminal block 603, the output connector 602, and the first connector 604 are also inserted and mounted on the component surface of the first printed wiring board 600.

  The output connector 602 has a pair of contacts 6020 (see FIG. 8). Each contact 6020 of the output connector 602 is electrically connected to a corresponding terminal plate 42 of the pair of terminal plates 42 of the emergency light source unit 4 via a relay electric wire.

  The receiving connector 64 includes a first contact receiver 641, a second contact receiver 642, and a base 640 (see FIG. 8). The base 640 is formed in a rectangular plate shape from a synthetic resin material having electrical insulation. The first contact receiver 641 and the second contact receiver 642 are formed in a bar shape, and are supported by the base 640 while penetrating the base 640 in the thickness direction. The receiving side connector 64 is electrically connected to the electric cable of the emergency power supply unit 9 through a relay electric cable.

  The first circuit block 60 includes a printed wiring formed on the first printed wiring board 600 and a plurality of types of electronic components 601 mounted on the component surface and the solder surface of the first printed wiring board 600. It has a printed circuit (see FIGS. 7 and 8). 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 constituted by, for example, a self-excited switching power supply circuit such as a ringing choke converter, and is configured to convert an AC voltage input from the normal power supply to the input terminal block 603 into a DC voltage. The charging circuit is configured to output a constant charging current to the emergency power supply unit 9 through the receiving connector 64 when power is supplied from the utility power supply. The lighting circuit is configured to make the direct current input from the emergency power supply unit 9 to the receiving connector 64 constant, and supply the constant direct current to the emergency light source unit 4 from the output connector 602. . The power failure detection circuit is configured to detect a power failure of the normal power supply based on the output voltage of the DC power supply circuit and notify the control circuit. The control circuit is configured to operate the charging circuit and stop the lighting circuit when the power failure detection circuit does not detect a power failure of the utility power source. The control circuit is configured to stop the charging circuit and operate the lighting circuit when the power failure detection circuit detects a power failure of the utility power supply.

  The second circuit block 61 includes a rectangular printed second printed wiring board 610, two push button switches 611 and 612, a display element 613, a light receiving element 614, and a second connector 615 (see FIG. 8). The second connector 615 is mounted on one end (front end) in the longitudinal direction on the lower surface of the second printed wiring board 610. One push button switch 612 is mounted behind the second connector 615 on the lower surface of the second printed wiring board 610. The other pushbutton switch 611 is mounted on the other end (rear end) in the longitudinal direction on the lower surface of the second printed wiring board 610. The display element 613 includes, for example, an LED chip that emits green light. The display element 613 is mounted in front of the push button switch 611 on the lower surface of the second printed wiring board 610. The light receiving element 614 is configured to receive a control signal using infrared as a communication medium and demodulate a transmission frame from the received control signal. This control signal is transmitted from a remote controller operated by an operator who performs a periodic inspection operation. The light receiving element 614 is mounted between the display element 613 and the push button switch 612 on the lower surface of the second printed wiring board 610. The second connector 615 is electrically connected to the first connector 604 of the first circuit block 60 by, for example, a cable. The control circuit of the first circuit block 60 is configured to monitor the operation states (ON and OFF) of the pushbutton switches 611 and 612 through the cable. The control circuit is configured to receive a transmission frame of a control signal demodulated by the light receiving element 614 through a 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 emit light by passing a current through the display element 613 through the cable.

  The control circuit is configured to perform a self-inspection operation when the front push button switch 612 is turned on and when a transmission frame is received from the light receiving element 614. The control circuit that performs the self-inspection operation stops the charging circuit and operates the lighting circuit. Further, the control circuit is configured to perform a confirmation operation when the rear push button switch 611 is turned on. The control circuit that performs the confirmation operation stops the charging circuit, operates the lighting circuit for several seconds, then stops the lighting circuit again, and operates the charging circuit. However, the control circuit is preferably configured to perform the confirmation operation even when a transmission frame instructing to perform the confirmation operation is received from the light receiving element 614.

  The case 62 has a first case 620 and a second case 621. The first case 620 has a bottom 6200 and a side wall 6201. The bottom 6200 is formed in a substantially rectangular box shape. The bottom 6200 is configured to support the solder surface of the first printed wiring board 600 of the first circuit block 60 from the thickness direction (vertical direction). The side wall part 6201 is formed in a plate shape. The side wall part 6201 is connected to the bottom part 6200 via a hinge. Therefore, the side wall portion 6201 is configured to be rotatable with respect to the bottom portion 6200 around the hinge. Further, the side wall portion 6201 is configured to support an end portion (left end portion) along the longitudinal direction of the second printed wiring board 610 of the second circuit block 61 sandwiched from the thickness direction.

  The second case 621 is formed in a box shape with the top and left sides open. The second case 621 is coupled to the first case 620. The upper surface of the second case 621 is closed by the bottom 6200 of the first case 620. Further, the left side surface of the second case 621 is closed by the side wall portion 6201 of the first case 620 (see FIG. 7).

  The second case 621 has a projecting portion 6210 that protrudes downward from the left end of the lower surface (see FIG. 8). The protruding part 6210 is formed in a truncated pyramid shape. The protruding portion 6210 has two operation members (a first operation member 6214 and a second operation member 6215). The first operation member 6214 is provided at the rear end of the lower surface of the projecting part 6210. Further, the second operation member 6215 is provided at the front end of the lower surface of the projecting part 6210. The first operation member 6214 and the second operation member 6215 are configured to be movable in the vertical direction with respect to the lower surface of the projecting part 6210. That is, when the first operation member 6214 pushed upward pushes the push button of the push button switch 611, the push button switch 611 is turned on. Further, when the second operation member 6215 pushed upward pushes the push button of the push button switch 612, the push button switch 612 is turned on. Further, the projecting portion 6210 has two circular windows 6216 and 6217 between the first operation member 6214 and the second operation member 6215 on the lower surface thereof. The front window 6216 faces the light receiving element 614 of the second circuit block 61 in the vertical direction. The rear window 6217 faces the display element 613 of the second circuit block 61 in the vertical direction. That is, the control signal transmitted from the remote controller reaches the light receiving element 614 through the front window 6216. Further, light (green light) emitted from the display element 613 is radiated out of the case 62 through the rear window 6217.

  The second case 621 has three openings 6211, 6212, 6213 at the right end. These three openings 6211, 6212, 6213 are arranged in a line along the front-rear direction (see FIG. 8). The opening 6211 at the front end faces the receiving connector 64 of the first circuit block 60. The input terminal block 603 is inserted through the opening 6213 at the rear end. The central opening 6212 faces the output connector 602 (see FIG. 8).

  The support member 7 is formed in a substantially rectangular flat plate shape by a material generally having a high thermal conductivity such as aluminum and an aluminum alloy (see FIG. 8). However, the support member 7 may be formed of a material other than aluminum and aluminum alloy. An insertion hole 70 passes through the left end of the support member 7. The insertion hole 70 is formed in an oval shape whose longitudinal direction is the front-rear direction. A rectangular insertion groove 71 is provided at the center in the front-rear direction at the right end of the support member 7. Further, three fitting grooves 72 are provided at the front end of the support member 7 and the rear end of the support member 7. The fitting groove 72 at the rear end of the support member 7 is provided at substantially the center in the left-right direction of the support member 7. On the other hand, the two fitting grooves 72 at the front end of the support member 7 are provided on both the left and right sides with respect to the center in the left-right direction of the support member 7. Three fitting holes 73 penetrate through 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 near the rear end of the right end of the support member 7. One screw insertion hole 75 is provided at each of the right side position of the insertion hole 70 at the center in the front-rear direction of the support member 7 and the front and rear end positions at the right end of the support member 7.

  The emergency light source unit 4 is attached to the lower surface of the support member 7 by screwing the holder 41 with two attachment screws 45 to the two screw holes 74 provided in the support member 7. (See FIGS. 5 and 8). 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 surface side of the support member 7 (see FIG. 6). 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 the heat dissipation sheet 43.

  The housing 5 includes a first housing 51 and a second housing 52 as shown in FIG. The first casing 51 and the second casing 52 are each formed by aluminum die casting.

  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 FIGS. 5 and 5). (See FIG. 6). Further, the first housing 51 has a pair of first inner walls 513 and a pair of second inner walls 514 (see FIG. 6). The second inner wall 514 on the left side of the pair of second inner walls 514 is formed to face the first outer wall 511 and rise upward from the inner side surface (upper surface) of the outer peripheral wall 510. The second inner wall 514 on the right side of the pair of second inner walls 514 is formed so as to rise upward from the upper surface of the second outer wall 512. The pair of first inner walls 513 are formed so as to rise upward from the inner surface of the outer peripheral wall 510 so as to face each other in the front-rear direction. The first inner wall 513 located forward of the pair of first inner walls 513 is connected to the front end of the pair of second inner walls 514 and the inner side surface of the second outer wall 512, respectively. Further, the first inner wall 513 located rearward of the pair of first inner walls 513 is connected to the rear ends of the pair of second inner walls 514 and the inner side surface of the second outer wall 512.

  A concave portion 500 is formed at the center and right side in the front-rear direction on the lower surface of the outer peripheral wall 510. The recess 500 is formed in an elliptical shape in which the major axis direction coincides with the axial direction (left-right direction) of the outer peripheral wall 510 when viewed from below (see FIG. 5). Therefore, both ends in the major axis direction (left-right direction) of the recess 500 are positioned below both ends in the minor axis direction (front-rear direction). Further, a window 501 through which the lens body 440 of the lens 44 is inserted passes through the center (bottom) of the recess 500. The window 501 is formed in an elliptical shape in which the major axis direction coincides with the minor axis direction (front-rear direction) of the recess 500 when viewed from below (see FIG. 5). An annular standing wall 507 that rises upward from the lower surface of the outer peripheral wall 510 is provided around the window 501 on the lower surface of the outer peripheral wall 510 (see FIGS. 6 and 7). Further, four columnar protrusions 505 are provided outside the standing wall 507 on the lower surface of the outer peripheral wall 510 (only one is shown in FIG. 6). In addition, two holes pass through the outer peripheral wall 510 so as to be arranged in the front-rear direction at a position on the left side of the recess 500. The rear hole has a first operation hole 502 that is a round hole and a long display hole 503 that is connected to the first operation hole 502. The front hole (hereinafter referred to as the second operation hole 504) is a round hole having a smaller diameter than the first operation hole 502. Further, the first housing 51 has three first bosses 515 protruding from the upper surface of the outer peripheral wall 510 so as to surround the window 501 (only two are shown in FIG. 6). These three first bosses 515 are each formed in a truncated cone shape and have screw holes (female screws) whose upper ends are open. Further, the first housing 51 has a cylindrical protruding 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 (FIG. 6). reference).

  Further, the first housing 51 has four ribs 517, one second boss 516, and a pair of protrusions 519. The four ribs 517 are formed in a rectangular plate shape that rises upward from the inner surface of the outer peripheral wall 510 along each first inner wall 513 (see FIGS. 6 and 9). The second boss 516 is formed in a truncated cone shape having a screw hole (female screw) whose upper end is open. The second boss 516 is formed to rise upward from the inner surface of the outer peripheral wall 510 between the first outer wall 511 and the left second inner wall 514. The pair of protrusions 519 are formed in a truncated cone shape that protrudes upward at both front and rear ends on the inner side (left side) of the second outer wall 512 (see FIG. 6).

  As shown in FIGS. 5 and 6, the second housing 52 is formed in a substantially rectangular box shape. The second housing 52 has a bottom wall 520, a pair of first side walls 521, and a pair of second side walls 522. The bottom wall 520 is formed in a rectangular flat plate shape. The pair of first side walls 521 protrude downward from both ends (front end and rear end) along the longitudinal direction of the bottom wall 520. The pair of second side walls 522 protrude downward from both ends (left end and right end) along the short direction of the bottom wall 520.

  A cylindrical protrusion 5200 protrudes downward from the center of the lower surface of the bottom wall 520 (see FIGS. 4 and 5). A cylindrical hole 5201 is provided inside the protrusion 5200. The hole 5201 penetrates the bottom wall 520 and the protrusion 5200 in the vertical direction so as to connect the inside of the housing 5 and the outside of the housing 5 (see FIG. 4). However, the hole 5201 is closed by, for example, a member generally referred to as a rubber plug with a hole (hereinafter referred to as a rubber plug 57) (see FIG. 4). The rubber plug 57 is formed in a cylindrical shape by an elastic material such as silicone rubber. Further, the rubber plug 57 includes three holes 570 having at least one wall in the middle thereof (see FIG. 6). That is, each hole 570 of the rubber plug 57 is configured to connect the inside of the housing 5 and the outside of the housing 5 by breaking the wall with a needle or the like.

  The bottom wall 520 includes three bosses 5202 and four ribs 5204. The three bosses 5202 are formed in a cylindrical shape protruding downward from the inner side surface (lower surface) of the bottom wall 520 (see FIG. 5). Each boss 5202 has a screw hole 5203 opened on the upper surface of the bottom wall 520 (see FIGS. 4 and 6). Of the four ribs 5204, two ribs 5204 are formed in a prismatic shape protruding downward from the lower surface of the bottom wall 520 along the first side wall 521 on the front side (see FIG. 5). Of the four ribs 5204, the remaining two ribs 5204 are formed in a prismatic shape protruding downward from the lower surface of the bottom wall 520 along the first side wall 521 on the rear side.

  The left second side wall 522 of the pair of second side walls 522 has a protrusion 5220 that protrudes leftward from the lower end of the center in the front-rear direction on the outer side surface (left side surface) (see FIGS. 4 and 5). ). The protrusion 5220 has a hole 5221 that penetrates in the vertical direction (see FIG. 4).

  In addition, the second housing 52 has a fixing part 523 and a protruding part 524. The fixing portion 523 is formed in a rectangular plate shape protruding rightward from the lower end of the second side wall 522 on the right side of the pair of second side walls 522 (see FIG. 5). A cylindrical hole 5230 penetrates in the vertical direction at the center of the fixing portion 523 in the front-rear direction (see FIGS. 4 and 5). In addition, approximately corrugated recesses 5231 are respectively provided on both the front and rear sides of the hole 5230 on the lower surface of the fixing portion 523. The protruding portion 524 is formed in a rectangular box shape that protrudes rightward from the tip (right end) of the fixed portion 523 (see FIG. 5). Cylindrical bosses 5240 are respectively provided at both ends of the front end (right end) of the projecting portion 524 in the front-rear direction. Each boss 5240 has a screw hole 5241 whose upper surface is open (see FIG. 6).

  As shown in FIGS. 5 and 6, the first gasket 53 is formed in a rectangular frame shape as a whole by an elastic material such as silicone rubber. As shown in FIGS. 10 and 11, the first gasket 53 includes a frame part 530, a fixing part 531, a pair of electric wire holding parts 532 and a support part 533. The frame part 530 is formed in a rectangular frame shape with four corners chamfered. On the lower surface of the frame portion 530, a recess 5300 that is recessed upward is provided over the entire circumference. The fixing portion 531 is formed in a rectangular plate shape that protrudes inward (leftward) from the inner surface at one end (right end) in the longitudinal direction of the frame portion 530. A semicircular protrusion 5310 protrudes inward (leftward) from the center in the longitudinal direction (front-rear direction) of the fixed portion 531. A cylindrical screw insertion hole 5311 penetrates in the vertical direction at the center portion in the longitudinal direction of the fixing portion 531 including the protrusion 5310. Furthermore, cylindrical fitting holes 5312 are respectively provided on both the front and rear sides of the screw insertion hole 5311 on the lower surface of the fixed portion 531 (see FIG. 10). 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 overlapping the fixing portion 531 when viewed in the vertical direction). The pair of electric wire holding portions 532 protrude upward from both front and rear sides of the screw insertion hole 5311 on the upper surface of the fixing portion 531. Each electric wire holding portion 532 is formed in a columnar shape whose bottom surface has a roughly wavy shape. Each electric wire holding portion 532 has a pair of holes 5320 that penetrates in the axial direction (left-right direction) and three ribs 5321 protruding from the peripheral surface of each electric wire holding portion 532 (see FIG. 11). ).

  The second gasket 54 is formed in a frame shape having an elliptical opening 540 in the center by an elastic material such as silicone rubber (see FIG. 5). However, the second gasket 54 is preferably colored black so as not to transmit light. An annular peripheral wall 541 protrudes upward from the edge of the opening 540 on the upper surface of the second gasket 54 (see FIG. 6). Furthermore, two ribs having a triangular cross-sectional shape parallel to the vertical direction protrude on the upper surface of the peripheral wall 541 so as to be aligned along the radial direction. The second gasket 54 has four fitting holes 542 and two hook pieces 543. The four fitting holes 542 are disposed so as to surround the opening 540 and penetrate the second gasket 54 in the thickness direction (vertical direction). The two hook pieces 543 are formed in a bowl shape and project upward from the right rear end and the left front end of the second gasket 54.

  The third gasket 55 is formed of an elastic material that transmits light, such as silicone rubber. As shown in FIGS. 12A and 12B, the third gasket 55 includes a main body 550, a first operation part 551, a second operation part 552, and a transmission part 553. The main body 550 is formed in an approximately elliptic cylinder shape. However, the lower surface of the main body 550 is formed in a curved surface having the same radius of curvature as the surface (lower surface) of the outer peripheral wall 510 of the first housing 51. Further, on the outer peripheral surface of the main body 550, three ribs 559 having a triangular cross-sectional shape parallel to the vertical direction protrude so as to be arranged at equal intervals along the vertical direction. Further, the main body 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 main body 550 in the vertical direction at one end in the longitudinal direction of the main body 550. The second through hole 555 is formed in a cylindrical shape that penetrates the main body 550 in the vertical direction at the other end in the longitudinal direction of the main body 550. The display groove 556 is formed in a rectangular tube shape having a lower surface opened between the first through hole 554 and the second through hole 555 of the main body 550. However, the lower part of the display groove 556 in the vertical direction is connected to the first through hole 554 (see FIG. 12B). The transmission part 553 is configured by the bottom wall (upper wall) of the display groove 556 in the main body 550 (see FIGS. 12A and 12C).

  The first operation unit 551 is formed in a columnar shape. The first operation portion 551 is accommodated in the first through hole 554 of the main body 550 so that its axial direction is aligned in the vertical direction. The second operation unit 552 is formed in a columnar shape shorter than the first operation unit 551. The second operation portion 552 is accommodated in the second through hole 555 of the main body 550 so that its axial direction is aligned in the vertical direction. The third gasket 55 includes a first seal portion 557 that seals the first through hole 554, and a second seal portion 558 that seals the second through hole 555 (see FIG. 12C). The first seal portion 557 and the second seal portion 558 are each formed in a hollow truncated cone shape with two bottom surfaces opened. The periphery of the bottom surface of the large diameter of the first seal portion 557 is coupled to the inner peripheral surface of the first through hole 554 of the main body 550. The periphery of the bottom surface of the small diameter of the first seal part 557 is coupled to the peripheral surface of the first operation part 551. The peripheral edge of the bottom surface of the large diameter of the second seal portion 558 is coupled to the inner peripheral surface of the second through hole 555 of the main body 550. The periphery of the bottom surface of the small diameter of the second seal portion 558 is coupled to the peripheral surface of the second operation portion 552. The front end (lower end) of the first operating portion 551 protrudes below the lower surface of the main body 550 from the first through hole 554 (see FIG. 12B). On the other hand, the tip (lower end) of the second operation portion 552 is accommodated in the second through hole 555 and does not protrude downward from the lower surface of the main body 550 (see FIG. 12B). Here, since the first seal portion 557 and the second seal portion 558 are formed of an elastic material (silicone rubber), they can be elastically deformed. Therefore, the first operating portion 551 and the second operating portion 552 move upward when an upward force is applied, and then the elasticity of the first seal portion 557 and the second seal portion 558 when no upward force is applied. It moves downward by force and returns to the initial state (the state shown in FIG. 12C).

  The emergency lighting device 3 further includes a fixing member 56 (see FIGS. 5 and 6). The fixing member 56 is formed of a metal plate that is not easily rusted, such as a stainless steel plate. The fixing member 56 includes a pentagonal fixing piece 560 whose longitudinal direction is the front-rear direction, a pair of leg pieces 561 that protrude upward from both sides of the fixing piece 560 in the longitudinal direction, and upper ends of the leg pieces 561. A pair of mounting pieces 562 projecting so as to face the fixed piece 560. A fixing hole 563 for holding the nut is provided in the approximate center of the fixing piece 560. A screw insertion hole 564 passes through one end (right end) of each mounting piece 562 (see FIG. 6).

  Next, the assembly procedure of the emergency lighting device 3 will be described. However, descriptions of the assembly work of the emergency light source unit 4 and the control device 6 and the work of attaching the emergency light source unit 4 to the support member 7 are omitted. Also, the assembly procedures (1) to (8) described below are merely examples, and the order of some assembly operations may be changed.

(1) Attaching the second gasket 54 to the first housing 51 First, an operator who performs assembly work attaches the second gasket 54 to the first housing 51. Specifically, the operator fits four protrusions 505 provided on the lower surface of the outer peripheral wall 510 of the first housing 51 one by one into the four fitting holes 542 of the second gasket 54.

(2) Attaching the third gasket 55 to the first casing 51 The operator attaches the third gasket 55 to the first casing 51 so as to push the third gasket 55 inside the protruding wall 518 (FIG. 7). reference). Inside the protruding wall 518, the three ribs 559 provided on the main body 550 are deformed so as to be crushed by the protruding wall 518. As a result, the inside of the protruding wall 518 is sealed by the third gasket 55, so that the first operation hole 502, the second operation hole 504, and the display hole 503 provided in the outer peripheral wall 510 enter the first housing 51. Infiltration of water is suppressed. Note that the tip (lower end) of the first operation portion 551 of the third gasket 55 protrudes from the surface (lower surface) of the outer peripheral wall 510 through the first operation hole 502 of the first housing 51 (see FIG. 13).

(3) Attaching the emergency light source unit 4 to the first housing 51 The operator 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 the some rib 517 of the 1st housing | casing 51 is fitted to the corresponding fitting groove 72 among the some fitting grooves 72 of the supporting member 7 (refer FIG. 9). Then, the operator inserts a screw into each of the three screw insertion holes 75 of the support member 7, and inserts each screw into a corresponding screw hole of the three first bosses 515 of the first housing 51. The support member 7 is screwed to the first casing 51 by screwing. At this time, the two ribs provided on the upper surface of the peripheral wall 541 of the second gasket 54 are crushed by the outer flange 441 of the lens 44 and the standing wall 507 provided on the peripheral edge of the window 501 of the outer peripheral wall 510. To deform. 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. Inundation from 501 into the first housing 51 is suppressed. In addition, the 1st operation part 551, the 2nd operation part 552, and the permeation | transmission part 553 of the 3rd gasket 55 are facing the penetration hole 70 of the support member 7 (refer FIG. 9).

(4) Attaching the first gasket 53 to the first casing 51 The operator inserts the pair of first inner walls 513 and the pair of first inner walls 513 of the first casing 51 into the recess 5300 of the frame portion 530 of the first gasket 53. The upper end portions of the two inner walls 514 are press-fitted. Further, the operator press-fits the tip end portion of the second boss 516 of the first housing 51 into the screw insertion hole 5311 of the fixing portion 531 of the first gasket 53 and the first fitting portion 531 of the fixing portion 531 has a first end. Each protrusion 519 of one housing 51 is fitted. In this way, the first gasket 53 is attached to the first housing 51 (see FIG. 9).

(5) Connection to control device The operator press-fits a pair of power lines 80 for the regular power supply into the holes 5320 of the rear wire holding portion 532 of the two wire holding portions 532 of the first gasket 53. Hold (see FIGS. 18 and 19). Further, the worker presses and holds the pair of electric wires 81 for emergency power supply into the holes 5320 of the front electric wire holding portion 532 of the two electric wire holding portions 532 of the first gasket 53 (see FIG. 18). ). The operator connects one end of the pair of power supply lines 80 to the input terminal block 603 of the control device 6. Further, the operator electrically connects one end of the pair of electric wires 81 to the receiving connector 64 of the control device 6. Here, the control device 6 is brought into one end (left end) in the longitudinal direction of the housing 5 and accommodated in the housing 5. Therefore, the emergency lighting device 3 can secure a space for wiring the power line 80 and the electric wire 81 between the housing 5 and the control device 6 (see FIG. 19). With this wiring space, the emergency lighting device 3 can improve the workability of the connection work to the control device 6.

(6) Incorporation of the control device 6 into the second housing 52 The operator houses the control device 6 inside the second housing 52. At this time, the control device 6 is supported by the plurality of ribs 5204 of the second housing 52 (see FIG. 7).

(7) Assembly of casing 5 The operator inserts the tip (upper end) of the first boss 515 of the first casing 51 into the hole 5230 of the fixing portion 523 of the second casing 52, and the first casing The tip (upper end) of the second boss 516 of 51 is inserted into the hole 5221 of the protrusion 5220 of the second housing 52 (see FIG. 7). At this time, the two wire holding portions 532 of the first gasket 53 are fitted into the corresponding recesses 5231 of the two recesses 5231 of the fixing portion 523 of the second housing 52. Then, the operator inserts a screw into the hole 5230 of the fixing portion 531 from the upper surface side of the second housing 52 and screwes the screw into the screw hole of the first boss 515. Further, the operator inserts a screw into the hole 5221 of the protrusion 5220 from the upper surface side of the second housing 52, and screws the screw into the screw hole of the second boss 516. That is, the first housing 51 and the second housing 52 are screwed 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, the pair of first side walls 521, the pair of second side walls 522 and the fixing portion 523 of the second housing 52 are: Sealed by the frame portion 530 of the first gasket 53. In addition, the three ribs 5321 included in the pair of electric wire holding portions 532 of the first gasket 53 are deformed so as to be crushed by the recesses 5231 of the fixing portion 523 of the second housing 52, whereby the second housing 52. The pair of recesses 5231 are sealed. Accordingly, the first gasket 53 suppresses water from the boundary surface between the first housing 51 and the second housing 52.

(8) Attachment of the fixing member 56 to the housing 5 The operator covers the pair of attachment pieces 562 of the fixing member 56 on the projecting portion 524 of the second housing 52, and screw insertion holes of the attachment pieces 562. The screw inserted through 564 is screwed into the screw hole 5241 of the corresponding boss 5240 of the two bosses 5240 of the projecting portion 524. The fixing member 56 is attached to the housing 5 such that the fixing piece 560 is opposed to the protruding portion 524 of the second housing 52 (see FIGS. 13 to 16).

  The assembly of the emergency lighting device 3 is completed by the procedure as described above.

  Here, the first operation portion 551 of the third gasket 55 faces the first operation member 6214 of the control device 6, and the second operation portion 552 of the third gasket 55 is connected to the second operation member 6215 of the control device 6. Opposite (see FIG. 17). Accordingly, when the first operation unit 551 moving upward pushes the first operation member 6214 upward, the push button of the push button switch 611 is pushed by the first operation member 6214 and the push button switch 611 is turned on. Further, when the second operation unit 552 moving upward pushes the second operation member 6215 upward, the push button of the push button switch 612 is pushed by the second operation member 6215 and the push button switch 612 is turned on. That is, the third gasket 55 seals the inside of the protruding wall 518 while allowing the first operating member 6214 and the second operating member 6215 of the control device 6 to be pushed. Further, the transmission portion 553 of the third gasket 55 is opposed to the display element 613 and the light receiving element 614 through the two holes 6216 and 6217 provided in the insertion hole 70 of the support member 7 and the case 62 of the control device 6. (See FIG. 17). Therefore, light (green light) emitted from the display element 613 is radiated out of the case 62 through the window 6217, and then radiated out of the housing 5 through the transmissive portion 553 of the third gasket 55. Further, the control signal transmitted from the remote controller passes through the transmission part 553 of the third gasket 55 and then reaches the light receiving element 614 through the window 6216 of the case 62. In addition, since the transmission part 553 is formed sufficiently thinner than the main body 550 of the third gasket 55, the attenuation when the light emitted from the display element 613 or the control signal transmitted from the remote controller is transmitted through the transmission part 553 is reduced. Can be suppressed.

  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 by the first gasket 53 as described above. Further, the emergency lighting device 3 is provided with a window 501 for extracting light emitted from the emergency light source unit 4 in the housing 5, and has 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 casing 5 having a waterproof function.

  Further, the support member 7 regulates the displacement of the third gasket 55 along the direction (vertical direction) in which the first housing 51 and the support member 7 are arranged. That is, since the displacement of the third gasket 55 is restricted by the support member 7, the third casing 55 is prevented from falling off the protruding wall 518 of the first housing 51.

  Further, the second gasket 54 seals the gap between the window 501 and the holder 41 by sealing the window 501 of the first housing 51 and the lens 44 of the emergency light source unit 4. Therefore, the emergency lighting device 3 can suppress flooding from the gap between the window 501 and the holder 41.

  Next, the assembly procedure of the lighting fixture 1 will be described. However, the description about the operation | work which attaches the emergency power supply unit 9 to the instrument main body 10 is abbreviate | omitted. Also, the assembly procedures (1) to (3) described below are merely examples, and the order of some assembly operations may be changed.

(1) Attaching the emergency lighting device 3 to the fixture body 10 The operator attaches the emergency lighting device 3 to the fixture body 10 before attaching the regular lighting device 2. First, the worker houses the second casing 52 of the casing 5 of the emergency lighting device 3 in the instrument main body 10. Subsequently, the operator inserts a screw into each of the three screw insertion holes 110 (see FIG. 3) provided in the top plate 11 from the upper surface side of the top plate 11 of the instrument main body 10. Screw into the screw holes 5203 of the three bosses 5202 provided on the bottom wall 520 of the second housing 52. That is, the emergency lighting device 3 is screwed to the top plate 11 of the instrument body 10 with three screws.

(2) Connection of control device 6 The operator connects the two electric wires 81 held by the electric wire holding portion 532 in front of the first gasket 53 and the connector provided on the electric cable of the emergency power supply unit 9. Connect (see FIG. 18). However, the two power wires 80 (see FIGS. 18 and 19) held by the electric wire holding portion 532 behind the first gasket 53 are electrically connected to the power wires of the normal power source when the lighting fixture 1 is constructed. Is done.

(3) Attachment of the regular lighting device 2 to the fixture main body 10 The operator inserts the upper portion of the regular illumination device 2 (the portion above the second fixing portion 241 of the two fixtures 24) into the fixture main body 10. . Then, the operator inserts the driver shaft into the recess 2215 of the cover portion 2214 of the right end member 221, and passes through the hole 2216 provided in the bottom wall of the recess 2215, and the screw insertion hole 243 of the second fixing portion 241. Tighten the mounting screw that is inserted through the. When the operator uses a screwdriver to tighten the mounting screw, the mounting screw is screwed into the screw hole 131 of the mounting piece 130 on the right side of the instrument body 10. As a result, the second fixing portion 241 of the right attachment 24 is screwed to the right attachment piece 130 of the instrument body 10. Subsequently, the operator inserts the driver shaft into the concave portion 2215 of the cover portion 2214 of the left end member 221, and through the hole 2216 provided in the bottom wall of the concave portion 2215, the screw insertion hole of the second fixing portion 241. Tighten the mounting screw inserted through 243. When the operator uses a screwdriver to tighten the mounting screw, 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 fixture 24 is screwed to the fixing piece 560 of the fixing member 56. Finally, the worker covers the mouth of the concave portion 2215 exposed on the surface of the cover portion 2214 with a tape or the like and blinds it. In this way, the assembly of the lighting fixture is completed by attaching the regular lighting device 2 to the fixture main body 10 (see FIG. 1).

  Next, the detailed structure of the lens 44 of the emergency lighting device 3 will be described with reference to FIG. However, since the lens 44 is line symmetric with respect to the optical axis X1 as an axis of symmetry, only one side of the lens 44 including the optical axis X1 is illustrated in FIG.

  The peripheral portion of the lens body 440 is formed so as to rise downward from the outer flange portion 441 over the entire circumference. Of the exit surface 443 of the lens body 440, the facing surface 444 facing the standing wall 507 of the outer peripheral wall 510 in the front-rear direction and the left-right direction refracts light emitted from the facing surface 444 in a direction away from the standing wall 507. It is configured. The optical axis X1 is an optical axis (mechanical central axis) of the LED module 40, and is also an optical axis of the lens body 440. That is, since the refractive index (about 1.45) of the material (glass) forming the lens 44 is larger than the refractive index of air (about 1.00), the light L1 traveling in the lens body 440 is opposed to the opposing surface 444. Refracts in a direction away from the upright wall 507 when exiting from (see FIG. 20). Here, in the conventional example described in Patent Document 1, a surface corresponding to the opposing surface among the exit surfaces of the lens body is formed only on a part of the lens body. That is, in the lens body in this conventional example, the light emitted from the surface that does not correspond to the facing surface is easily blocked by the cover, so the ratio of the light that is irradiated from the exit surface to the illumination space among the light incident on the lens body ( It has been difficult to improve the light utilization efficiency.

  On the other hand, since the lens body 440 in the present embodiment has the facing surface 444 over the entire circumference around the optical axis X1, the use efficiency of light is improved as compared with the conventional example described in Patent Document 1. Can be achieved.

  Here, the outer flange portion 441 of the lens 44 is provided with a recess 445 into which the distal end portion (upper end portion) of the standing wall 507 of the first housing 51 and the distal end portion (upper end portion) of the peripheral wall 541 of the second gasket 54 are fitted. It does not matter (see Modification 1 shown in FIG. 21). Thus, if the tip part of the standing wall 507 is fitted into the recess 445 of the outer flange part 441, the distance from the outer collar part 441 to the tip (lower end) of the standing wall 507 can be reduced. As a result, the ratio of the light blocked by the standing wall 507 in the light emitted from the facing surface 444 is further reduced, so that the light use efficiency can be further improved.

  Further, the facing surface 444 of the lens main body 440 may be inclined so as to move away from the optical axis X1 along with the optical axis X1 (see the second modification shown in FIG. 22). ). That is, most of the light L2 radiated from the LED module 40 and reaching the opposing surface 444 is totally reflected by the opposing surface 444, so that the light use efficiency can be further improved.

  As described above, the lighting device (emergency lighting device 3) houses the solid-state light source (LED module 40), the optical member (lens 44) that controls the light distribution of the LED module 40, the LED module 40, and the lens 44. And a housing 5. The lens 44 includes an optical element (lens body 440) having an incident surface 442 on which light emitted from the LED module 40 is incident and an output surface 443 from which light incident on the incident surface 442 is emitted. Further, the lens 44 has an outer flange portion 441 that protrudes in a direction away from the optical axis X1 on the peripheral surface surrounding the optical axis X1 of the lens body 440. The housing 5 includes a window 501 through which the lens 44 is inserted, and a standing wall 507 that rises from the edge of the window 501 toward the outer flange 441 over the entire circumference of the window 501. The facing surface 444 facing the standing wall 507 along the entire circumference of the standing wall 507 along the direction intersecting the optical axis X1 in the emitting surface 443 refracts the light L1 emitted from the facing surface 444 in a direction away from the standing wall 507. It is configured.

  Since the emergency lighting device 3 is configured as described above, it has a facing surface 444 around the optical axis X1 in the lens body 440, so that it is compared with the conventional example described in Patent Document 1. It is possible to improve the light use efficiency.

  The emergency lighting device 3 preferably includes a sealing device (second gasket 54) that is interposed between the standing wall 507 and the outer flange portion 441 and seals the standing wall 507 and the outer flange portion 441.

  If the emergency lighting device 3 is configured as described above, it is possible to suppress flooding between the standing wall 507 and the outer flange portion 441 while improving the light utilization efficiency.

  In the emergency lighting device 3, the outer flange portion 441 preferably has a recess 445 at a position facing the standing wall 507. It is preferable that at least a part of the standing wall 507 is configured to fit in the recess 445.

  If the emergency lighting device 3 is configured as described above, the distance from the outer flange portion 441 to the tip (lower end) of the standing wall 507 can be reduced. As a result, the emergency lighting device 3 can further reduce the proportion of the light emitted from the facing surface 444 that is blocked by the standing wall 507, thereby further improving the light utilization efficiency.

  In the emergency lighting device 3, the facing surface 444 is preferably inclined so as to move away from the optical axis X <b> 1 as it moves away from the outer flange portion 441 along the optical axis X <b> 1.

  If the emergency lighting device 3 is configured as described above, most of the light L2 radiated from the LED module 40 and reaching the opposing surface 444 is totally reflected by the opposing surface 444, so that the light utilization efficiency is further increased. Improvements can be made.

  As described above, the lighting fixture 1 includes the lighting device (emergency lighting device 3) and the fixture body 10 that houses the emergency lighting device 3.

  Since the lighting fixture 1 is configured as described above, it is possible to improve the light utilization efficiency as compared with the conventional example described in Patent Document 1.

1 lighting equipment 3 emergency lighting equipment (lighting equipment)
5 Housing 10 Instrument body 40 LED module (solid light source)
44 Lens (Optical member)
54 Second gasket (sealing device)
440 Lens body (optical element)
441 Outer part 442 Incident surface 443 Outgoing surface 444 Opposing surface 445 Recess 501 Window 507 Standing wall X1 Optical axis L1 Light

Claims (5)

A solid light source;
An optical member for controlling the light distribution of the solid-state light source;
A housing that houses the solid-state light source and the optical member;
The optical member is
An optical element having an incident surface on which light emitted from the solid light source is incident and an output surface from which light incident on the incident surface is emitted;
An outer flange portion projecting in a direction away from the optical axis on a peripheral surface surrounding the optical axis of the optical element;
The housing is
A window through which the optical element is inserted;
A standing wall that rises from the edge of the window toward the outer flange over the entire circumference of the window;
A facing surface that faces the standing wall along the entire circumference of the standing wall along a direction intersecting the optical axis among the emitting surfaces so as to refract the light emitted from the facing surface in a direction away from the standing wall. An illuminating device characterized by being configured. The lighting device according to claim 1, further comprising a sealing device interposed between the standing wall and the outer flange portion to seal the standing wall and the outer flange portion. The outer flange portion has a recess at a position facing the standing wall,
The lighting device according to claim 1, wherein at least a part of the standing wall is configured to fit in the recess. The lighting device according to claim 1, wherein the facing surface is inclined so as to move away from the optical axis as it moves away from the outer flange along the optical axis. The lighting device according to any one of claims 1 to 4,
A lighting fixture comprising: a fixture main body that houses the lighting device.

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