JP6778900B2 - lighting equipment - Google Patents

Description

The present invention relates generally to luminaires, and more specifically to luminaires that provide regular lighting and emergency lighting.

As a conventional example, the lighting fixture described in Patent Document 1 will be illustrated. This conventional example includes a fixture main body, a regular light source unit for regular lighting, and an emergency lighting device for emergency lighting. The instrument body is formed in a long and rectangular box shape with an open bottom surface. The common light source unit includes a plurality of LED modules, a mounting member to which each LED module is mounted, 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 fixture body so that the cover is exposed from the lower surface of the fixture body.

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 (storage battery), and the like. A lens is placed in front of the LED module. The cover is placed in front of the LED module with the lens exposed forward. The emergency power supply is located behind the LED module. The control device includes a charging circuit that charges the emergency power supply with the electric power supplied from the regular power supply, and an emergency power supply circuit that lights the LED module using the emergency power supply as the power supply when the regular power supply fails. Further, the control device includes a control circuit that receives an operation input from the inspection switch and performs an inspection operation. The regular power supply is, for example, a power supply (commercial AC power supply) that supplies power to the power supply device of the regular light source unit.

Japanese Unexamined Patent Publication No. 2016-134208

By the way, in this conventional example, the cover of the emergency lighting device is fixed to the fixture body by using a spring member. That is, one end of the cover is fitted to the spring member screwed to the instrument body, and the other end of the cover is screwed and fixed to the instrument body. Therefore, it is necessary to screw both the cover and the spring member to the instrument body, resulting in poor workability.

The present invention has been made in view of the above reasons, and an object of the present invention is to provide a lighting fixture capable of improving the workability of attaching a cover.

The luminaire according to one aspect of the present invention includes a luminaire main body that houses a luminaire for regular illuminating, an emergency luminaire for emergency illuminating, and the luminaire and the emergency luminaire next to each other. And. The emergency lighting device includes an emergency light source unit, an emergency power supply unit, a control device, and a cover. The control device lights the emergency light source unit with the electric power supplied from the emergency power supply unit. The cover has a hole through which light emitted from the emergency light source unit passes and covers the emergency light source unit. The fixture body has a first locking portion at one end of the fixture body in the arrangement direction in which the regular lighting device and the emergency lighting device are lined up. The cover has a cover main body, a second locking portion held by the first locking portion, and the cover main body being held by the first locking portion while the second locking portion is held by the first locking portion. It has a fixing portion for fixing to the main body. The second locking portion is provided at one end of the cover body in the alignment direction. The fixing portion is provided at the other end of the cover body opposite to the one end in the alignment direction. One of the first locking portion and the second locking portion has a projecting piece. The other of the first locking portion and the second locking portion has a recess for inserting and locking the projecting piece, and a guide portion for guiding the insertion of the projecting piece into the recess. The recess has a first inner peripheral surface and a second inner peripheral surface facing the first inner peripheral surface. The guide portion has one surface continuous with the first inner peripheral surface of the recess. In the opposite direction in which the first inner peripheral surface and the second inner peripheral surface face each other, the distance between the one surface of the guide portion and the second inner peripheral surface is the distance between the first inner peripheral surface and the second inner surface. It is larger than the distance to the peripheral surface.

The present invention has an advantage that the workability of attaching the cover can be improved.

FIG. 1A is a side view of a partially broken main part of the luminaire according to the embodiment of the present invention in the first state. FIG. 1B is a side view of a partially broken main part of the lighting fixture in the second state of the same. FIG. 2A is an enlarged view of a main part of FIG. 1A. FIG. 2B is an enlarged view of a main part of FIG. 1B. FIG. 3 is an exploded perspective view of the main part of the lighting fixture as seen from below. FIG. 4 is a perspective view seen from above the cover of the emergency lighting device in the same lighting fixture. FIG. 5 is an exploded perspective view of the lighting fixture as seen from below. FIG. 6A is a front view of the same lighting fixture. FIG. 6B is a plan view of the same lighting fixture. FIG. 6C is a left side view of the lighting fixture of the same. FIG. 7 is a perspective view of the emergency lighting device in the same lighting fixture as viewed from below. FIG. 8A is a front view of the emergency lighting device in the same lighting fixture. FIG. 8B is a plan view of the emergency luminaire in the same luminaire. FIG. 8C is a right side view of the emergency luminaire in the same luminaire. FIG. 9A is a rear view of the emergency lighting device in the same lighting fixture. FIG. 9B is a bottom view of the emergency lighting device in the same lighting fixture. FIG. 10 is an exploded perspective view of the emergency luminaire in the same luminaire as viewed from below. FIG. 11 is a cross-sectional view of the emergency lighting device in the same lighting fixture. FIG. 12 is an exploded perspective view of the emergency luminaire in the same luminaire as viewed from below. FIG. 13 is an exploded perspective view of the emergency light source unit and the control device in the same lighting fixture as viewed from below. FIG. 14 is an exploded perspective view of the emergency power supply unit in the same lighting fixture as viewed from below. FIG. 15 is a partially broken side view of a main part of the first modification of the lighting fixture of the same. FIG. 16 is an explanatory view of a main part of the second modification of the lighting fixture of the same.

(1) Outline The configurations described below are merely examples of the present invention, and the present invention is not limited to the following configurations, and the technical idea relating to the present invention may be other than the following configurations. As long as it does not deviate from the above, various changes can be made according to the design and the like.

As an example, it is assumed that the lighting fixture 1 of the present embodiment is a ceiling-mounted lighting fixture that is directly attached to the ceiling of an office or the like. However, the luminaire 1 is not limited to this, and may be a ceiling-embedded luminaire or a wall-mounted luminaire. As shown in FIG. 5, for example, the lighting fixture 1 of the present embodiment includes a regular lighting device 2 that performs regular lighting, an emergency lighting device 3 that performs emergency lighting, a regular lighting device 2, and an emergency lighting device 3. It is provided with an instrument main body 10 that accommodates them side by side with each other.

As shown in FIGS. 7 to 12, the emergency lighting device 3 includes an emergency light source unit 4, an emergency power supply unit 5, a control device 6, and a cover 7. The control device 6 lights the emergency light source unit 4 with the electric power supplied from the emergency power supply unit 5.

The cover 7 has a hole 711 through which the light emitted from the emergency light source unit 4 passes and covers the emergency light source unit 4. The fixture body 10 has a first locking portion 100 at one end (left end) of the fixture body 10 in the arrangement direction in which the regular lighting device 2 and the emergency lighting device 3 are lined up. The "arrangement direction" referred to here corresponds to the left-right direction in FIG.

The cover 7 has a cover body 70, a second locking portion 74 held by the first locking portion 100, and a cover main body 70 in a state where the second locking portion 74 is held by the first locking portion 100. It has a fixing portion 75 for fixing to the instrument main body 10. In the present embodiment, the fixing portion 75 is formed in a rectangular plate shape and has a screw insertion hole 750 (see FIG. 3) into which a screw 16 (see FIG. 1B) is inserted.

The second locking portion 74 is provided at one end (left end) of the cover body 70 in the alignment direction. The fixing portion 75 is provided at the other end (right end) on the side opposite to one end of the cover body 70 in the alignment direction.

One of the first locking portion 100 and the second locking portion 74 has a projecting piece. The other of the first locking portion 100 and the second locking portion 74 has a recess for inserting and locking the projecting piece, and a guide portion for guiding the insertion of the projecting piece into the recess. In this embodiment, as shown in FIGS. 2A and 2B, the first locking portion 100 has a projecting piece 130, and the second locking portion 74 has a recess 719 into which the projecting piece 130 is inserted and locked. It has a guide portion 740B for guiding the insertion of the projecting piece 130 into the recess 719.

The recess 719 has a first inner peripheral surface and a second inner peripheral surface facing the first inner peripheral surface. In the present embodiment, as shown in FIGS. 2A and 2B, the first inner peripheral surface corresponds to one surface 7402 of the claw-shaped protrusion 740, and the second inner peripheral surface is the first side wall portion 71A of the cover body 70. It corresponds to the upper end surface 718. The guide portion 740B has one surface continuous with the first inner peripheral surface (one surface 7402) of the recess 719. In the present embodiment, the one surface is an inclined surface 7401 as an example.

In the facing direction (vertical direction) in which the first inner peripheral surface (one surface 7402) and the second inner peripheral surface (upper end surface 718) face each other, the distance between the inclined surface 7401 and the upper end surface 718 of the guide portion 740B is one. It is larger than the distance between the surface 7402 and the upper end surface 718.

With such a structure, the second locking portion 74, for example, from the first state (see FIG. 1A), attaches the cover body 70 around the second locking portion 74 as shown by the arrow in FIG. 1A. By shifting to the second state (see FIG. 1B), the first locking portion 100 is locked. The first state is a state in which the cover main body 70 is tilted with respect to the alignment direction and the second locking portion 74 and the first locking portion 100 are in contact with each other. The second state is a state in which the cover 7 covers the emergency light source unit 4. In the following, for the sake of simplification of the description, the state shown in FIG. 1A is referred to as a first state, and the state shown in FIG. 1B is referred to as a second state. 2A is an enlarged view of the main part (circular part drawn by the dotted line) of FIG. 1A, and FIG. 2B is an enlarged view of the main part (circular part drawn by the dotted line) of FIG. 1B.

(2) Details (2.1) Overall configuration Hereinafter, the lighting fixture 1 of the present embodiment will be described in detail with reference to FIGS. 1 to 14. In the following, unless otherwise specified, the vertical, horizontal, and front-back directions of the luminaire 1 will be described by defining them using the up-down, left-right, and front-back arrows shown in FIG.

As described in the column of "(1) Overview", the lighting fixture 1 of the present embodiment includes a regular lighting device 2 that performs regular lighting, an emergency lighting device 3 that performs emergency lighting, a regular lighting device 2, and a regular lighting device 2. It includes an instrument main body 10 for accommodating the emergency lighting device 3.

(2.2) Instrument body The instrument body 10 is formed of a metal material into a long box shape. The instrument main body 10 has a long rectangular flat plate-shaped top plate 11 and a pair of first side plates 12 protruding downward from each of the two end edges along the longitudinal direction (left-right direction) of the top plate 11. doing. The instrument main body 10 further has a pair of second side plates 13 projecting downward from each of the two end edges along the lateral direction (front-back direction) of the top plate 11. Further, the instrument body 10 has an opening 15 (see FIG. 5) on the lower surface facing the top plate 11. The top plate 11 is provided with a hole 110 for passing an electric wire at substantially the center in the left-right direction. Further, the top plate 11 is provided with holes 111 for passing suspension bolts at positions near both ends in the left-right direction (see FIG. 5). Further, a terminal block 14 to which an electric wire drawn from the hole 110 is connected is attached to the lower surface of the top plate 11.

As shown in FIG. 6A, the fixture main body 10 is configured to accommodate the emergency lighting device 3 in the vicinity of the left end, and is configured to accommodate the regular lighting device 2 on the right side of the emergency lighting device 3. However, this is not limited to this, and the fixture main body 10 may be configured to accommodate the emergency lighting device 3 in the vicinity of the right end, and may be configured to accommodate the regular lighting device 2 on the left side of the emergency lighting device 3. .. Alternatively, the fixture body 10 may be configured to accommodate the two emergency lighting devices 3 in both the vicinity of the left end and the vicinity of the right end, respectively. In this case, the regular lighting device 2 is housed in the instrument main body 10 so as to be sandwiched between the two emergency lighting devices 3 in the left-right direction.

Further, as described in the column of "(1) Overview", the fixture body 10 is located at one end (left end) of the fixture body 10 in the arrangement direction (left-right direction) in which the regular lighting device 2 and the emergency lighting device 3 are lined up. It has one locking portion 100 (see FIG. 5). The first locking portion 100 is a portion for holding the second locking portion 74 of the cover 7 of the emergency lighting device 3. Specifically, each second side plate 13 of the fixture main body 10 has a projecting piece 130 projecting toward the regular lighting device 2 and the emergency lighting device 3 at the lower end thereof. As shown in FIG. 5, each projecting piece 130 has an elongated rectangular plate shape extending in the front-rear direction when viewed from below. Each projecting piece 130 is integrally formed with the second side plate 13 by, for example, bending.

In the present embodiment, since the emergency lighting device 3 is housed in the vicinity of the left end of the fixture body 10, the projecting piece 130 of the leftmost second side plate 13 of the pair of second side plates 13 is attached to the first locking portion 100. Equivalent to. By inserting and locking the projecting piece 130 into the second locking portion 74 (recessed portion 719) of the cover 7 of the emergency lighting device 3, the holding of the left end portion of the cover 7 with respect to the fixture main body 10 is achieved. .. However, when the fixture main body 10 is configured to accommodate the emergency lighting device 3 in the vicinity of the right end, the projecting piece 130 of the right end second side plate 13 of the pair of second side plates 13 is first locked. As the portion 100, holding of one end of the cover 7 may be achieved. The second locking portion 74 will be described in detail later in the section “(2.4.6) Cover”.

(2.3) Regular Lighting Device The regular lighting device 2 includes a regular light source, a mounting member 21 to which the regular light source is attached, a translucent cover 20 that covers the regular light source, and a power supply device that lights the regular light source. .. A common light source has a long substrate and a large number of LEDs (Light Emitting Diodes) mounted on the surface of the substrate. The mounting member 21 is formed of a metal material in the shape of a long gutter. The mounting member 21 has a bottom plate formed in the shape of a long rectangular plate, and a pair of side plates 210 that rise upward from both ends in the lateral direction (front-back direction) of the bottom plate. The common light source is mounted on the lower surface of the bottom plate of the mounting member 21. The power supply device is configured to convert AC power supplied from a regular power source (for example, a commercial AC power source) via a terminal block 14 into DC power. The power supply device is mounted on the upper surface of the bottom plate of the mounting member 21. The common light source and the power supply device are electrically connected by an electric wire inserted into an insertion hole provided in the bottom plate. A common light source is turned on by supplying DC power from a power supply device via an electric wire.

The translucent cover 20 is formed in a long box shape having an open upper surface made of a translucent synthetic resin material such as acrylic resin or polycarbonate resin. The lower surface of the translucent cover 20 is formed in a curved shape that gently projects downward from both ends toward the center in the lateral direction (front-rear direction) (see FIG. 5). A diffusing agent is mixed in the synthetic resin material forming the translucent cover 20. That is, the light emitted from the common light source is diffused when passing through the translucent cover 20.

In the normal lighting device 2, parts other than the translucent cover 20 (side plates 210, 210 of the mounting member 21, power supply device, etc.) are housed in the fixture body 10, and most of the opening 15 of the fixture body 10 is covered with the translucent cover. It is detachably attached to the instrument body 10 so as to be closed by 20. However, since the structure in which the conventional lighting device 2 is detachably attached to the fixture main body 10 is the same as the conventional example described in Patent Document 1, detailed description and illustration will be omitted.

(2.4) Emergency Lighting Device (2.4.1) Overall Configuration of Emergency Lighting Device Next, the emergency lighting device 3 will be described in detail with reference to FIGS. 7 to 14. As described in the column of "(1) Overview", the emergency lighting device 3 includes an emergency light source unit 4, an emergency power supply unit 5, a control device 6, and a cover 7 (FIG. 6). 7 to 10). Further, the emergency lighting device 3 includes a holding tool 8.

(2.4.2) Emergency light source unit As shown in FIG. 12, the emergency light source unit 4 includes an LED module 40, a holder 41, a pair of terminal plates 42, and a heat radiating sheet 43 (see FIG. 11). , And a lens 44. The LED module 40 is configured by mounting at least one LED chip in the center of a rectangular flat plate-shaped mounting board 400. The LED chip is preferably, for example, a blue light emitting diode that emits blue light. Further, the mounting surface (lower surface) of the mounting substrate 400 including the LED chip is covered with a sealing resin 401 mixed with a fluorescent substance that converts the wavelength of blue light emitted from the LED chip (see FIG. 12). Further, electrodes are formed on the lower surfaces of the pair of corners at diagonal positions of the mounting substrate 400. 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 glass, for example, and has a lens main body 440 and an annular outer flange portion 441 protruding outward from the peripheral edge of the lens main body 440, as shown in FIG. As shown in FIG. 11, the lens 44 is preferably a wide-angle light distribution lens having an aspherical shape of an entrance surface 442 and an exit surface 443 and realizing a so-called batwing-like light distribution characteristic. However, the lens 44 may be formed of a synthetic resin material (for example, polycarbonate resin or the like) whose heat resistance (flame retardancy) is improved by mixing glass fibers.

The heat radiating sheet 43 is made of a sheet material made of a silicone resin having high thermal conductivity, electrical insulation and flame retardancy. The heat radiating sheet 43 comes into contact with the upper surface of the mounting board 400 of the LED module 40.

The holder 41 is formed of a synthetic resin material such as a polycarbonate resin in a substantially rhombus shape when viewed from above and below (see FIG. 12). The holder 41 holds the LED module 40 and the lens 44 so that the lens body 440 of the lens 44 is overlapped on the light emitting surface (lower surface) of the LED module 40. Further, the holder 41 has a terminal plate holding portion 410. The terminal plate holding portion 410 is formed in a square tubular shape extending upward, and houses and holds a pair of terminal plates 42 inside (see FIGS. 11 to 13).

(2.4.3) Emergency power supply unit As shown in FIG. 14, the emergency power supply unit 5 is a combination of a plurality of dry battery type storage batteries (five in the illustrated example) and a plurality of storage batteries 50. A case 51 made of a resin material, a first conductor 54, and a second conductor 55 are provided. The case 51 has a case body 52 and a case cover 53. The case body 52 has a rectangular bottom wall 520 and a pair of first side walls 521 protruding downward from both front and rear edges of the bottom wall 520. Further, the case body 52 has a second side wall 522 protruding downward from the right end edge of the bottom wall 520, and a third side wall 523 protruding downward from the left end edge of the bottom wall 520. However, the third side wall 523 is formed so as to be higher in the vertical direction than the first side wall 521, 521 and the second side wall 522.

The bottom wall 520 has five abutment portions 526 that project downward from its lower surface. These five abutment portions 526 are arranged in the left-right direction on the lower surface of the bottom wall 520. Further, the lower surface of each abutment portion 526 is formed in a semi-cylindrical surface shape. One storage battery 50 is mounted and supported on the lower surface of each abutment portion 526. However, the leftmost abutment portion 526 of the five abutment portions 526 is located below the other four abutment portions 526.

Each of the first side walls 521 and 521 has a pair of projecting pieces 5210. Each projecting piece 5210 is formed in a rectangular plate shape and projects downward from the lower end of the first side wall 521. Further, each projecting piece 5210 has a triangular columnar claw 5211 at its tip (lower end). However, the claws 5211 of each projecting piece 5210 of the front first side wall 521 project forward, and the claws 5211 of each projecting piece 5210 of the rear first side wall 521 project rearward.

The second side wall 522 has a protrusion 524 that protrudes to the right from the lower end on the right side surface thereof. The protrusion 524 is formed in a substantially rectangular parallelepiped shape. However, it is preferable that the lower right side of the protrusion 524 is formed in a convex curved surface shape.

The third side wall 523 is formed in the shape of a rectangular plate. The third side wall 523 has a terminal holding portion 527 at the lower front portion on the left side surface thereof. The terminal holding portion 527 is formed in a square tubular shape with the axial directions aligned in the vertical direction. Further, the space inside the terminal holding portion 527 is divided into two by a partition wall 5270 (see FIG. 14). Further, the terminal holding portion 527 has a rectangular plate-shaped guide piece 5271 at the upper end portion on the front surface thereof. The guide piece 5271 projects forward from the front surface of the terminal holding portion 527 so that the thickness direction coincides with the left-right direction.

The case cover 53 includes a rectangular first bottom wall 530, a rectangular first side wall 531 projecting diagonally downward to the left from the left edge of the first bottom wall 530, and a first bottom wall 530 and a first side wall 531. It has a pair of second side walls 532 that project upward from both front and rear edges. Further, the case cover 53 has a third side wall 533 that protrudes upward from the right end edge of the first bottom wall 530, and a second bottom wall 534 that projects leftward from the left end edge of the first side wall 531. doing.

Each second side wall 532 has a pair of through holes 5320. Further, the front second side wall 532 is formed in a stepped shape.

The third side wall 533 has a projecting piece 5330. The projecting piece 5330 projects upward from the upper end near the rear end of the third side wall 533. Further, the projecting piece 5330 has a triangular columnar claw 5331 at its tip (upper end). The claw 5331 projects to the right from the right side surface at the upper end of the projecting piece 5330.

The second bottom wall 534 is formed in the shape of a rectangular plate. The second bottom wall 534 has a lid portion 535 at its front left end. The lid portion 535 is formed so that the shape seen from the left-right direction is U-shaped.

The five storage batteries 50 are arranged so as to be arranged alternately along the respective radial directions. One end (rightmost end) of the first conductor 54 is electrically connected to the negative electrode terminal of the rightmost storage battery 50. Further, one end (rightmost end) of the second conductor 55 is electrically connected to the positive electrode terminal of the storage battery 50 at the left end. The positive electrode terminal of the storage battery 50 at the right end and the negative electrode terminal of the storage battery 50 second from the right are electrically connected by the conductor plate 56. The positive electrode terminal of the second storage battery 50 from the right and the negative electrode terminal of the third storage battery 50 from the right are electrically connected by the conductor plate 56. The negative electrode terminal of the leftmost storage battery 50 and the positive electrode terminal of the second storage battery 50 from the left are electrically connected by the conductor plate 56. The positive electrode terminal of the third storage battery 50 from the right and the negative electrode terminal of the second storage battery 50 from the left are electrically connected by the conductor plate 56. That is, the five storage batteries 50 are electrically connected in series by the four conductor plates 56.

The first conductor 54 is formed in an S shape by a metal plate (see FIG. 14). One end (right end) of the first conductor 54 in the longitudinal direction is electrically connected to the negative electrode terminal of the storage battery 50 at the right end. The first conductor 54 has a first contact 57 at the other end (left end) in the longitudinal direction thereof. The first contact 57 has a square tubular frame body 570 and a spring body housed in the frame body 570. The spring body is coupled to the upper end of the frame body 570 and is integrally formed with the frame body 570 so as to be flexible in the left-right direction in the frame body 570. The first conductor 54 is housed in the case body 52 along the upper first side wall 521 and the third side wall 523. Further, the first contact 57 is housed in the space above the partition wall 5270 of the two spaces in the terminal holding portion 527.

The second conductor 55 is formed in an S shape by a metal plate. One end (right end) of the second conductor 55 in the longitudinal direction is electrically connected to the positive electrode terminal of the left end storage battery 50. The second conductor 55 has a second contact 58 at the other end (left end) in the longitudinal direction thereof. The second contact 58 has a square tubular frame body and a spring body housed in the frame body. The spring body is coupled to the upper end of the frame body and is integrally formed with the frame body so as to be flexible in the left-right direction in the frame body. The second conductor 55 is housed in the case body 52 along the lower first side wall 521 and the third side wall 523. Further, the second contact 58 is housed in the space below the partition wall 5270 among the two spaces in the terminal holding portion 527.

The case 51 is assembled by connecting the case cover 53 to the case body 52 (see FIG. 12). Each of the four projecting pieces 5210 of the case body 52 is inserted into the corresponding through hole 5320 of the four through holes 5320 of the case cover 53. Further, the projecting piece 5330 included in the case cover 53 is inserted into the through hole 5240 provided in the projecting portion 524 of the case body 52. Then, the case body 52 and the case cover 53 are connected by hooking the claws 5211 and 5331 provided at the tips of the projecting pieces 5210 and 5330 on the edges of the through holes 5320 and 5240, respectively. The opening on the lower side of the terminal holding portion 527 of the case body 52 is closed by covering the lid portion 535 of the case cover 53 (see FIG. 12).

(2.4.4) Control device As shown in FIG. 13, the control device 6 includes a first circuit block 60, a second circuit block 61, a housing 62, and a heat radiating plate 63. The first circuit block 60 includes a rectangular plate-shaped first printed wiring board 600, a plurality of types of electronic components 601, a receiving side 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 a lead 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. 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 side of the first printed wiring board 600.

The output connector 602 has a pair of contacts 6020 (see FIG. 13). Each contact 6020 of the output connector 602 contacts and conducts with the corresponding terminal plate 42 of the pair of terminal plates 42 of the emergency light source unit 4.

The receiving side connector 64 has a first contact receiving 641, a second contact receiving 642, and a base 640 (see FIG. 13). The base 640 is formed in a rectangular plate shape by a synthetic resin material having electrical insulation. The first contact receiver 641 and the second contact receiver 642 are formed in a rod shape and are supported by the base 640 in a state of penetrating the base 640 in the thickness direction. The first contact receiver 641 and the first contact 57 are pressed against the frame 570 by the spring body in the frame 570 in a state of being inserted into the frame 570 of the first contact 57 of the emergency power supply unit 5. It is electrically connected. The second contact receiver 642 is electrically connected to the second contact 58 by being pressed against the frame by a spring body inside the frame while being inserted into the frame of the second contact 58 of the emergency power supply unit 5. To.

The first circuit block 60 is composed of 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. 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 an AC voltage input from a regular power supply to an input terminal block 603 into a DC voltage. The charging circuit is configured to output a constant charging current through the receiving connector 64 when power is being supplied from the regular power supply. The lighting circuit is configured to make the direct current input from the emergency power supply unit 5 to the receiving side connector 64 constant, and supply the constant current output current from the output connector 602 to the emergency light source unit 4. .. The power failure detection circuit is configured to detect a power failure of the regular power supply from the output voltage of the DC power supply circuit and notify the control circuit. The control circuit is configured to operate the charging circuit and stop the lighting circuit when the power failure detection circuit does not detect a power failure of the normal power supply. Further, 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 normal power supply.

The second circuit block 61 has a rectangular plate-shaped 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. The second connector 615 is mounted at one end (front end) in the longitudinal direction on the lower surface of the second printed wiring board 610. One push button switch 611 is mounted behind the second connector 615 on the lower surface of the second printed wiring board 610. The other push button switch 612 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 has, for example, an LED chip that emits green light. The display element 613 is mounted in front of the push button switch 612 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 rays as a communication medium and demodulate the transmission frame from the received control signal. This control signal is transmitted from a remote controller operated by an operator who performs periodic inspection work. The light receiving element 614 is mounted between the display element 613 and the push button switch 611 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, for example, by a cable. The control circuit of the first circuit block 60 is configured to monitor the operating state (on and off) of the push button switches 611 and 612 through a cable. Further, the control circuit is configured to receive the transmission frame of the control signal demodulated by the light receiving element 614 through the cable. Further, the control circuit is configured to cause the display element 613 to emit light by passing a current through the cable to the display element 613 when the charging circuit of the first circuit block 60 is operating.

The control circuit is configured to perform a periodic inspection operation when one of the push button switches 611 is turned on and when a transmission frame is received from the light receiving element 614. The periodic inspection operation is to stop the charging circuit and operate the lighting circuit. Further, the control circuit is configured to perform a self-inspection operation when the other push button switch 612 is turned on. The self-inspection operation is to stop the charging circuit and operate the lighting circuit for several seconds, then stop the lighting circuit again and operate the charging circuit. However, it is preferable that the control circuit is configured to perform the self-inspection operation even when the transmission frame instructing the self-inspection operation is received from the light receiving element 614.

The housing 62 has a first housing 620 and a second housing 621. The first housing 620 has a bottom portion 6200 and a side wall portion 6201. The bottom 6200 is formed in a substantially rectangular box shape. The bottom portion 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 portion 6201 is formed in a plate shape. The side wall 6201 is connected to the bottom 6200 via a hinge. Therefore, the side wall 6201 is configured to be rotatable with respect to the bottom 6200 about the hinge. Further, the side wall portion 6201 is configured to support the second printed wiring board 610 of the second circuit block 61 by sandwiching the end portion (left end portion) along the longitudinal direction from the thickness direction.

The second housing 621 is formed in a box shape with the upper surface and the left side open. The second housing 621 is coupled with the first housing 620. The upper surface of the second housing 621 is closed by the bottom 6200 of the first housing 620. Further, the left side surface of the second housing 621 is closed by the side wall portion 6201 of the first housing 620 (see FIG. 11).

The second housing 621 has a protrusion 6210 that projects downward from the left end of the lower surface (see FIG. 13). The abutment portion 6210 is formed in a substantially pyramidal table shape. The abutment portion 6210 has two operating members (a first operating member 6214 and a second operating member 6215). The first operating member 6214 is provided at the front end of the lower surface of the abutment portion 6210. The second operating member 6215 is provided at the rear end of the lower surface of the abutment portion 6210. The first operating member 6214 and the second operating member 6215 are configured to be movable in the vertical direction with respect to the lower surface of the abutment portion 6210. That is, when the first operating 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 operating member 6215 pushed upward pushes the push button of the push button switch 612, the push button switch 612 is turned on. Further, two circular windows 6216 and 6217 are provided between the first operating member 6214 and the second operating member 6215 on the lower surface of the abutment portion 6210. 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, the light (green light) emitted by the display element 613 is radiated to the outside of the housing 62 through the rear window 6217.

Further, the second housing 621 has three openings 6211, 6212, 6213 at the right end. These three openings 6211, 6212, 6213 are arranged in a row along the front-rear direction (see FIG. 13). The opening 6211 at the front end faces the receiving side 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. 12).

The heat radiating plate 63 has a mounting portion 630 to which the emergency light source unit 4 is mounted, a pair of leg portions 631, and a pair of fixing portions 632 (see FIG. 13). The mounting portion 630 is formed in a substantially trapezoidal shape. The pair of leg portions 631 are formed in a flat plate shape and project upward from the front end and the rear end of the mounting portion 630. The pair of fixing portions 632 project from the upper ends of the pair of leg portions 631 in the direction of approaching each other in the front-rear direction. However, in the present embodiment, the mounting portion 630, the pair of leg portions 631, and the pair of fixing portions 632 are integrally formed of a plate material made of aluminum or an aluminum alloy.

In the heat radiating plate 63, the mounting portion 630 faces the lower surface of the second housing 621, the pair of leg portions 631 face the front and rear surfaces of the second housing 621, and the pair of fixing portions 632 face the first housing 620. It is attached to the housing 62 so as to be hooked on the upper surface of the bottom portion 6200 of the (see FIG. 12). Further, the heat radiating plate 63 is formed by fitting the protrusions 6218 protruding from the upper and lower ends of the upper surface and the lower surface of the second housing 621 into each of the rectangular fitting holes 633 provided in the pair of leg portions 631. It is positioned with respect to the housing 62 (see FIGS. 12 and 13).

The emergency light source unit 4 is attached to the attachment portion 630 by screwing the holder 41 to the screw hole 6300 provided in the attachment portion 630 of the heat radiating plate 63 (see FIGS. 10 to 13). .. Further, in the emergency light source unit 4, the terminal plate holding portion 410 of the holder 41 is plugged and connected to the output connector 602 exposed from the central opening 6212 of the second housing 621, whereby the first control device 6 is connected. It is electrically connected to the circuit block 60 (see FIG. 11). Further, the LED module 40 is thermally coupled to the mounting portion 630 (heat dissipation plate 63) via the heat dissipation sheet 43 (see FIG. 11).

The control device 6 is housed in the left end of the instrument body 10 (see FIG. 3). The control device 6 is preferably fixed to the instrument main body 10 by screwing a pair of fixing portions 632 of the heat radiating plate 63 to the top plate 11. That is, the heat generated by the LED module 40 is conducted from the heat radiating sheet 43 to the heat radiating plate 63, and further conducted from the heat radiating plate 63 to the instrument main body 10 to be dissipated.

(2.4.5) Presser As shown in FIG. 10, the presser 8 has a main piece 80, a hook piece 81, a side piece 82, a first insertion piece 83, a second insertion piece 84, and a third. It has a plug 85. In the present embodiment, the main piece 80, the hook piece 81, the side piece 82, the first insertion piece 83, the second insertion piece 84, and the third insertion piece 85 are integrally formed by a metal plate. ..

The main piece 80 is formed in an L shape when viewed from below. The main piece 80 has an internal thread portion 800. The hook piece 81 has a curved portion 810 curved in an arc shape, a connecting portion 811 connecting the curved portion 810 and the main piece 80, and a rectangular flat portion 812 protruding from the lower end of the curved portion 810 ( 8A-8C and 10). The hook piece 81 is connected to the lower part of the left end of the main piece 80 by the connecting portion 811. The hook piece 81 is configured so that the curved portion 810 can be displaced in the left-right direction by bending the connecting portion 811 in the thickness direction. The side piece 82 is formed in a rectangular shape. The side piece 82 projects downward and leftward from the rear end of the main piece 80. The lower part of the side piece 82 is inclined toward the rear. The first insertion piece 83 and the second insertion piece 84 are formed in an L shape when viewed from the front-rear direction (see FIGS. 8B and 9B). The second insertion piece 84 is preferably formed by cutting into the main piece 80. The third insertion piece 85 is formed in an L shape when viewed from the front-rear direction (see FIGS. 8B and 9B). The third insertion piece 85 projects upward from the upper end of the left end of the side piece 82 (see FIG. 8B).

In the presser foot 8, the first insertion piece 83, the second insertion piece 84, and the third insertion piece 85 are inserted one-to-one into the three holes penetrating the top plate 11, and the first insertion piece Each of 83, the second insertion piece 84, and the third insertion piece 85 is configured to sandwich the top plate 11. Then, the holding tool 8 is attached to the lower surface of the top plate 11 by screwing the screw inserted into the screw insertion hole provided in the top plate 11 into the female screw portion 800 of the main piece 80.

The emergency power supply unit 5 is arranged between the control device 6 attached to the top plate 11 of the instrument main body 10 and the holding tool 8 (see FIG. 3). The emergency power supply unit 5 is housed in the space between the control device 6 and the holding tool 8 in the instrument main body 10 with the case body 52 facing the top plate 11. The terminal holding portion 527 of the emergency power supply unit 5 is inserted into the housing 62 through the opening 6211 at the front end of the second housing 621. At this time, the guide piece 5721 of the terminal holding portion 527 is guided to the guide groove 6219 provided at the right end of the front surface of the second housing 621 (see FIG. 10). Then, the first contact 57 of the emergency power supply unit 5 is electrically connected to the first contact receiver 641 of the control device 6. Further, the second contact 58 of the emergency power supply unit 5 is electrically connected to the second contact receiver 642 of the control device 6. Further, the emergency power supply unit 5 is supported by the holding tool 8 by hooking the curved portion 810 of the hooking piece 81 of the holding tool 8 on the protruding portion 524 provided on the case 51 (see FIGS. 8A and 12). .. Here, when the connecting portion 811 of the hook piece 81 is bent by the force applied to the flat portion 812, the curved portion 810 is displaced to the right and the hook between the curved portion 810 and the protrusion 524 is released. When the emergency power supply unit 5 is pulled downward with the curved portion 810 and the protrusion 524 released from being caught, the first contact 57 and the second contact 58 become the first contact receiver 641 and the second contact. It is pulled out from the receiver 642. That is, the operator can complete the electrical connection work between the emergency power supply unit 5 and the control device 6 almost at the same time as the work of accommodating the emergency power supply unit 5 in the instrument main body 10. In addition, the operator can complete the electrical disconnection operation between the emergency power supply unit 5 and the control device 6 almost at the same time as the removal operation of the emergency power supply unit 5 from the instrument main body 10.

(2.4.6) Cover The cover 7 has a hole 711 through which the light radiated from the emergency light source unit 4 passes, and is configured to cover the emergency light source unit 4. However, the cover 7 of the present embodiment is configured to cover not only the emergency light source unit 4 but also the control device 6 and the emergency power supply unit 5. As shown in FIGS. 1A, 1B, 3 and 4, the cover 7 has a cover main body 70, a second locking portion 74, and a fixing portion 75.

As shown in FIG. 4, the cover main body 70 is composed of a first cover body 71, a second cover body 72, and a connecting body 73. The first cover body 71 is configured to cover a part (left end portion) of the emergency light source unit 4, the control device 6, and the emergency power supply unit 5 from below. The second cover body 72 is configured to cover the entire rest of the emergency power supply unit 5 from below. The first cover body 71 and the second cover body 72 are connected so as to be lined up in the left-right direction by a long connecting body 73 formed in an L shape when viewed from the front-rear direction. In the present embodiment, the first cover body 71, the second cover body 72, and the connecting body 73 are integrally formed of a nonflammable material such as metal. The cover 7 is made of, for example, aluminum die casting.

The first cover body 71 is formed in a box shape having a rectangular opening 716 (see FIG. 4) on the upper surface. As shown in FIG. 8A, the first cover body 71 is formed in a rectangular shape when viewed from below. The lower surface of the first cover body 71 is formed in a curved surface shape that gently projects downward from both ends toward the center in the lateral direction (front-rear direction), similarly to the translucent cover 20 of the normal lighting device 2. (See FIG. 3). A recess 710 is formed on the lower surface of the first cover body 71. The recess 710 is formed in an elliptical shape when viewed from below. The hole 711 is provided in the center (bottom) of the recess 710 so as to penetrate in the vertical direction. The hole 711 is formed in a shape (elliptical shape) through which the lens body 440 of the lens 44 can be inserted. The recess 710 is formed so that both ends in the major axis direction (left-right direction) protrude downward from both ends in the minor axis direction (front-rear direction) (see FIG. 8B).

The second cover body 72 is formed in an L shape when viewed from the front-rear direction, and is configured to cover a part of the emergency power supply unit 5 in the second state (see FIG. 1B). Specifically, the second cover body 72 has a flat portion 720 and an arm portion 721. The flat portion 720 is formed in a substantially rectangular flat plate shape. The flat portion 720 is connected to the connecting body 73 at its left end. The arm portion 721 is formed in a substantially rectangular flat plate shape. The arm portion 721 is configured to rise upward from the front end at the right end of the flat portion 720 (see FIG. 4).

The fixing portion 75 is formed in a substantially rectangular flat plate shape. The fixing portion 75 is configured to project to the right from the upper end of the arm portion 721. Further, the fixing portion 75 has a circular screw insertion hole 750 in the right corner closer to the front thereof.

The second locking portion 74 is provided at one end (left end) of the cover main body 70 in the "arrangement direction", that is, the left-right direction in which the normal lighting device 2 and the emergency lighting device 3 are lined up. In other words, the second locking portion 74 is provided at the left end portion of the first cover body 71. The second locking portion 74 is a portion for being held by the projecting piece 130 (first locking portion 100) of the instrument main body 10.

Hereinafter, the first cover body 71 will be described in more detail. As shown in FIG. 4, the first cover body 71 is curved to connect the first side wall portion 71A and the second side wall portion 71B and the first side wall portion 71A and the second side wall portion 71B so as to face each other in the left-right direction. It is composed of a bottom portion 71C. The first side wall portion 71A, the second side wall portion 71B, and the curved bottom portion 71C are integrally formed.

The first side wall portion 71A is arranged on the left side of the curved bottom portion 71C, and the second side wall portion 71B is arranged on the right side of the curved bottom portion 71C. The lower side of each of the first side wall portion 71A and the second side wall portion 71B is formed in a substantially arc shape when viewed along the left-right direction. The upper end of the second side wall portion 71B is connected to the second cover body 72 by the connecting body 73.

The curved bottom portion 71C is formed in a rectangular shape when viewed along the vertical direction, and is formed in a curved surface shape which protrudes downward when viewed along the horizontal direction. As shown in FIG. 4, the peripheral edge of the opening 716 of the first cover body 71 is formed by the upper end portions of the front side and the rear side of the curved bottom portion 71C and the upper end portions of the first side wall portion 71A and the second side wall portion 71B. Has been done.

The curved bottom 71C has the recess 710 and the hole 711 described above. In the second state, the lens body 440 of the emergency light source unit 4 is inserted into the hole 711 and exposed to the outside of the cover 7. Further, the curved bottom portion 71C has a first through hole 712, a second through hole 713, a third through hole 714, and a fourth through hole 715 (see FIG. 8A).

The first through hole 712 faces the first operating member 6214 of the control device 6 in the second state. The first operating member 6214 is pushed by a jig inserted through the first through hole 712. The second operation member 6215 of the control device 6 is inserted into the fourth through hole 715 in the second state. The second operating member 6215 is pushed by, for example, a human finger. The second through hole 713 faces the light receiving element 614 of the control device 6 in the second state. The third through hole 714 faces the display element 613 of the control device 6 in the second state. That is, the control signal transmitted from the remote controller reaches the light receiving element 614 through the second through hole 713. Further, the light (green light) emitted by the display element 613 is radiated to the outside of the cover 7 through the third through hole 714.

The dimensional relationship of the first cover body 71 is defined so that the first side wall portion 71A is arranged to the left of the left end surface of the control device 6 in the second state (see FIG. 1B). Here, the second locking portion 74 is provided on the left first side wall portion 71A (that is, the left end portion of the cover main body 70) of the first side wall portion 71A and the second side wall portion 71B. In the present embodiment, as shown in FIG. 4, the second locking portion 74 is formed by an upper end surface 718 of the first side wall portion 71A and two claw-shaped protrusions 740 protruding from the upper end surface 718. It is configured.

As shown in FIG. 4, the two claw-shaped protrusions 740 are arranged at the front end and the rear end of the upper end surface 718 of the first side wall portion 71A in the width direction (front-back direction) of the instrument body 10. Specifically, the first side wall portion 71A has a pair of square tubular ribs 717 at the front end and the rear end on the right side thereof. In other words, the first side wall portion 71A is formed so that the thickness dimension of the corresponding portion is larger than the thickness dimension of the remaining portion by the amount of the pair of ribs 717. The two claw-shaped protrusions 740 project upward from the right end of the upper end surface of the pair of ribs 717 in the first side wall portion 71A. In the present embodiment, the upper end surface 718 of the first side wall portion 71A including the upper end surface of the pair of ribs 717 is referred to. The upper end surface 718 of the first side wall portion 71A corresponds to a surface (opposing surface) facing the projecting piece 130 (first locking portion 100) of the instrument main body 10 in the second state. There may be a slight gap between the pair of ribs 717 and the first side wall portion 71A.

In this embodiment, the number of claw-shaped protrusions 740 is two as an example. However, the number of claw-shaped protrusions 740 may be one or three or more. However, considering the stability and workability of attaching the cover 7 to the instrument main body 10 and the manufacturing cost of the cover 7, the two claw-shaped protrusions 740 are formed on the first side wall portion 71A as in the present embodiment. It can be said that it is desirable that the upper end surface 718 is arranged at the front end and the rear end, respectively.

Hereinafter, each claw-shaped protrusion 740 will be described in more detail. Each claw-shaped protrusion 740 protrudes in a direction away from the upper end surface 718 (upward), and is formed in a claw shape so as to sandwich the projecting piece 130 of the instrument body 10 with the upper end surface 718 in the second state. There is. As shown in FIGS. 2A and 2B, each claw-shaped protrusion 740 is integrally formed with the base portion 740A formed in an L shape when viewed along the front-rear direction and the base portion 740A with respect to the upper end surface 718. It has a guide portion 740B having an inclined surface 7401 that is inclined. In this embodiment, each claw-shaped protrusion 740 is formed integrally with the cover main body 70. Therefore, the number of members of the lighting fixture 1 as a whole can be reduced.

The base portion 740A is configured to form a recess 719 (see FIGS. 2A and 2B) for inserting the tip of the projecting piece 130 of the instrument body 10 from the upper end surface 718. The base portion 740A has an upright portion that protrudes upward from the upper end surface 718 and an extension portion that extends from the tip of the upright portion in a direction (to the left) that approaches the leftmost second side plate 13 (in the second state). It is composed of and. The guide portion 740B is integrally formed so as to extend from the tip of the base portion 740A. As shown in FIG. 2A, the inclined surface 7401 of the guide portion 740B is a surface that comes into contact with the tip of the projecting piece 130 of the instrument body 10 in the first state. The inclined surface 7401 is continuous from one surface 7402 (opposing the upper end surface 718) of the extending portion of the base 740A. In the second state, the inclined surface 7401 is inclined with respect to the arrangement direction (left-right direction) so as to be closer to the second side plate 13 at the left end of the instrument main body 10 as the distance from the upper end surface 718 increases. In short, the inclined surface 7401 of the guide portion 740B functions as a guide for guiding the tip of the projecting piece 130 of the instrument main body 10 into the recess 719 when shifting from the first state to the second state.

In the present embodiment, one surface 7402 of the claw-shaped protrusion 740 corresponds to the first inner peripheral surface of the recess 719, and the upper end surface 718 of the first side wall portion 71A of the cover body 70 is the first inner surface of the recess 719. It corresponds to the second inner peripheral surface facing the peripheral surface. Then, in the facing direction (vertical direction) in which the one surface 7402 (first inner peripheral surface) and the upper end surface 718 (second inner peripheral surface) face each other, the inclined surface 7401 (one surface) and the upper end surface 718 of the guide portion 740B Is greater than the distance between one surface 7402 and the upper end surface 718.

The inclined surface 7401 of the present embodiment is a flat surface as shown in FIGS. 2A and 2B. However, the inclined surface 7401 may be, for example, a surface whose cross section is curved in an arc shape.

By the way, it is preferable that at least a part of each claw-shaped protrusion 740 is provided at a position overlapping the cover main body 70 when the cover 7 is viewed along the penetrating direction (vertical direction) through which the hole 711 penetrates. In the present embodiment, substantially all of the claw-shaped protrusions 740 are provided at positions that overlap with the cover main body 70 when the cover 7 is viewed along the penetration direction (vertical direction). In other words, as shown in FIG. 8A, when the cover 7 is viewed from below, almost all of the claw-shaped protrusions 740 are arranged so as to be hidden behind the cover main body 70. Therefore, it is possible to reduce the possibility that the claw-shaped protrusion 740 will come into contact with other members and be damaged during the attachment work of the cover 7. Further, in this case, in the second state, it is possible to suppress a step generated between the left end surface of the second side plate 13 at the left end of the instrument body 10 and the left end surface of the first side wall portion 71A of the first cover body 71. The appearance of the luminaire 1 can also be improved (see FIG. 1B).

(3) Cover Attachment Work The cover 7 attachment work of the emergency lighting device 3 will be described below. Of the components of the emergency lighting device 3, the emergency light source unit 4, the emergency power supply unit 5, the control device 6, and the presser foot 8, excluding the cover 7, are previously provided with the fixture main body 10 as shown in FIG. It is assumed that it is housed inside.

First, the operator turns the opening 716 of the cover 7 upward, and covers the cover body 70 in a state where the longitudinal direction of the cover body 70 is inclined with respect to the left-right direction so that the left end of the cover body 70 is above the right end thereof. 7 is gripped. Then, the operator brings the inclined surface 7401 of each claw-shaped protrusion 740 into contact with the tip of the projecting piece 130 of the instrument main body 10 while keeping the cover main body 70 inclined (see FIG. 2A). As a result, the cover 7 is in the first state shown in FIG. 1A.

In the first state, the inclined surface 7401 is substantially parallel to the vertical direction when viewed along the front-rear direction. Further, in the first state, the corner portion 7100 at the upper left corner of the first side wall portion 71A is in contact with the lower surface of the projecting piece 130 (see FIG. 2A). It is desirable that the corner portion 7100 is formed with rounded corners as shown in FIGS. 2A and 2B.

Next, as shown by the arrow in FIG. 1A, the operator displaces (rotates) the cover body 70 in a direction approaching the emergency light source unit 4 with the second locking portion 74 as an axis. At this time, as shown in FIGS. 2A and 2B, each claw-shaped protrusion 740 rotates counterclockwise when viewed from the front with the corner portion 7100 as a fulcrum, while the tip of the projecting piece 130 of the instrument body 10 is It enters the recess 719 while sliding on the inclined surface 7401. Then, the cover 7 shifts from the first state to the second state that covers the emergency light source unit 4. In the second state, as shown in FIG. 2B, the projecting piece 130 of the first locking portion 100 of the instrument main body 10 is locked in the recess 719 of the second locking portion 74, and the instrument main body 10 Holding of the left end of the cover 7 against is achieved.

Finally, the operator attaches the screw 16 (see FIG. 1B) to the screw insertion hole 750 (see FIG. 3) of the fixing portion 75 and the screw insertion hole 801 (see FIG. 3) provided in the main piece 80 of the holding tool 8. And screw it into the female screw provided on the top plate 11 of the instrument body 10. As a result, the installation work of the cover 7 is completed.

As described above, according to the luminaire 1 of the present embodiment, unlike the luminaire of Patent Document 1, the work of screwing both the cover and the spring member to the luminaire body is unnecessary. That is, the left end portion of the cover 7 is directly held by the first locking portion 100 of the instrument main body 10 through the second locking portion 74 without using a spring member and a screw, and further, the right end portion (fixing portion 75) of the cover 7. ) Is fixed by screwing. Therefore, the number of screwed portions is smaller than that of the luminaire of Patent Document 1, and the luminaire 1 of the present embodiment can improve the workability of attaching the cover 7.

In particular, the guide portion 740B has an inclined surface 7401 in which the distance from the upper end surface 718 is larger than the distance between the one surface 7402 and the upper end surface 718 in the vertical direction. Therefore, the operator brings the tip of the projecting piece 130 into contact with the inclined surface 7401 and rotates the cover body 70 toward the emergency light source unit 4 with the second locking portion 74 as an axis, whereby the projecting piece 130 The tip can be easily inserted into the recess 719. As a result, the mounting workability of the cover 7 can be improved.

After the installation work of the cover 7 is completed, the operator attaches the regular lighting device 2 to the fixture main body 10. At this time, the regular lighting device 2 is arranged so as to line up with the first cover body 71 of the cover 7 in the left-right direction while covering the second cover body 72 of the cover 7 at its left end.

(4) Modified Examples The first modified example and the second modified example will be described below. Hereinafter, the above-described embodiment will be referred to as a “basic example”. The modified examples described below can be applied in combination with the basic examples as appropriate.

(4.1) First Modified Example In the basic example, the second locking portion 74 of the cover 7 had a claw-shaped protrusion 740. On the other hand, in the first modification, as shown in FIG. 15, the first locking portion 100 of the instrument body 10 has a claw-shaped protrusion 131, and the projecting piece 741 provided on the cover 7 is the instrument body 10. It differs from the basic example in that it is inserted into the recess 132 of the above and locked. In addition, since the first modification is the same as the basic example for the components other than the first locking portion 100 and the second locking portion 74, the same components are given the same reference numerals to explain them. Is omitted.

The first locking portion 100 of the instrument body 10 of the first modification has two claw-shaped protrusions 131 in addition to the projecting piece 130 of the basic example (only one is shown in FIG. 15). The two claw-shaped protrusions 131 are arranged at the front end and the rear end of the second side plate 13 below the right surface, respectively. It is preferable that each claw-shaped protrusion 131 is formed integrally with the second side plate 13. Each claw-shaped protrusion 131 is formed, for example, by cutting up a part of the second side plate 13. Each claw-shaped protrusion 131 is configured to form a recess 132 for inserting the tip of the protrusion 741 of the cover 7 with the upper end surface of the protrusion 130. Each claw-shaped projection 131 has an inclined surface 133 that contacts the tip of the projecting piece 741 in the first state. In the second state, the inclined surface 133 is inclined with respect to the arrangement direction (left-right direction) so as to be separated from the cover main body 70 as it approaches the emergency light source unit 4.

In the first modification, the tip of each claw-shaped protrusion 131 is bent upward, and the bent tip corresponds to the guide portion. The inclined surface 133 is provided at the tip (guide portion). Further, in the first modification, the lower surface of the claw-shaped protrusion 131 corresponds to the first inner peripheral surface of the recess 132, and the upper end surface of the projecting piece 130 faces the first inner peripheral surface of the recess 132. Corresponds to the inner peripheral surface. Then, in the facing direction (vertical direction) in which the lower surface of the claw-shaped projection 131 and the upper end surface of the projecting piece 130 face each other, the inclined surface 133 of the tip (guide portion) of the claw-shaped projection 131 and the upper end surface of the projecting piece 130 Is larger than the distance between the lower surface of the claw-shaped projection 131 and the upper end surface of the projecting piece 130.

The second locking portion 74 of the cover 7 of the first modification has, for example, one substantially plate-shaped projecting piece 741 extending in the anteroposterior direction instead of the two claw-shaped protrusions 740 of the basic example. There is. The projecting piece 741 is formed in an L shape when viewed along the front-rear direction (see FIG. 15). Specifically, the projecting piece 741 is configured to project upward from the right end of the upper end surface 718 of the first side wall portion 71A and further extend to the left. As a result, a gap 742 is formed by the projecting piece 741 and the upper end surface 718. The gap 742 is a space for accommodating the projecting piece 130 of the instrument main body 10 in the second state. The dimensions of the projecting piece 741 in the front-rear direction are substantially the same as the dimensions of the first side wall portion 71A in the front-rear direction.

Also in this first modification, the operator displaces (rotates) the cover body 70 around the second locking portion 74 as shown by the arrow in FIG. 15 from the first state (see FIG. 15). As a result, the tip of the projecting piece 741 of the cover 7 slides on the inclined surface 133 and enters the recess 132. As a result, the holding of one end (left end) of the cover 7 with respect to the instrument body 10 is achieved. Therefore, as in the basic example, the number of screwed portions is smaller than that of the lighting fixture of Patent Document 1, and the mounting workability of the cover 7 can be improved.

In particular, in this first modification, since the inclined surface 133 is provided on the instrument main body 10 side, the operator can position the cover main body 70 with the inclined surface 133 as a guide. In short, the operator can bring the second locking portion 74 of the cover 7 closer to the inclined surface 133 on the instrument body 10 side while visually observing the inclined surface 133 exposed through the opening 15 of the instrument body 10. Therefore, the mounting workability of the cover 7 can be further improved as compared with the case where the cover 7 side is provided with the inclined surface as in the basic example.

In the basic example, by providing the two ribs 717 (see FIG. 4), the thickness dimension of the portion where the claw-shaped protrusion 740 of the first side wall portion 71A is arranged becomes larger than the thickness dimension of the remaining portion. Was set to. Also in this first modification, one rib may be provided so that the thickness dimension of the portion where one elongated projecting piece 741 of the first side wall portion 71A is arranged is larger than the thickness dimension of the remaining portion. desirable.

By the way, the projecting piece 741 may be provided only at a position corresponding to the claw-shaped protrusion 131 of the instrument main body 10. In other words, the second locking portion 74 of the cover 7 of the first modification may have two projecting pieces 741 arranged along the cover 7 in the front-rear direction with a gap from each other. In this case, the two projecting pieces 741 are locked corresponding to the two recesses 132, respectively.

Further, it is preferable that at least a part of the projecting piece 741 is provided at a position overlapping with the cover main body 70 when the cover 7 is viewed along the penetrating direction (vertical direction) through which the hole 711 penetrates. In the present embodiment, substantially all of the projecting pieces 741 are provided at positions that overlap with the cover main body 70 when the cover 7 is viewed along the penetration direction (vertical direction). In other words, when the cover 7 is viewed from below, almost all of the projecting pieces 741 are arranged so as to be hidden behind the cover main body 70. Therefore, it is possible to reduce the possibility that the projecting piece 741 will come into contact with another member and be damaged during the mounting work of the cover 7. Further, in this case, in the second state, it is possible to suppress a step generated between the left end surface of the second side plate 13 at the left end of the instrument body 10 and the left end surface of the first side wall portion 71A of the first cover body 71. The appearance of the lighting fixture 1 can be improved.

(4.2) Second Modified Example In the basic example, the second locking portion 74 of the cover 7 had two claw-shaped protrusions 740. On the other hand, in the second modification, as shown in FIG. 16, the second locking portion 74 of the cover 7 has one claw-shaped protrusion 740 and one auxiliary projecting piece 743. So, it is different from the basic example. Further, the second modification is different from the basic example in that the first locking portion 100 of the instrument body 10 further has a claw-shaped auxiliary protrusion 134.

In FIG. 16, the emergency light source unit 4, the emergency power supply unit 5, and the control device 6 are not shown. The two alternate long and short dash lines in FIG. 16 do not indicate the displacement direction of the cover 7 when the cover 7 is attached, and the auxiliary protrusion 743 and the claw-shaped protrusion 740 of the cover 7 correspond to which positions of the instrument body 10 respectively. It indicates whether it is retained. Since the second modification is the same as the basic example for the components other than the first locking portion 100 and the second locking portion 74, the same components are given the same reference numerals to explain them. Is omitted.

The auxiliary protrusion 743 and the claw-shaped protrusion 740 of the cover 7 are arranged at the front end and the rear end of the upper end surface 718 of the first side wall portion 71A, respectively. The auxiliary protrusion 743 and the claw-shaped protrusion 740 are provided on the upper end surfaces of the pair of square tubular ribs 717, respectively, like the two claw-shaped protrusions 740 of the basic example.

Since the claw-shaped protrusion 740 of the cover 7 is the same as the claw-shaped protrusion 740 at the rear end of the basic example, the description thereof will be omitted. In the second state, the auxiliary projecting piece 743 of the cover 7 projects in a direction away from the emergency light source unit 4 (to the left) along the arrangement direction (horizontal direction). A gap 744 is formed between the auxiliary projecting piece 743 and the upper end surface 718 of the first side wall portion 71A. The gap 744 is a space for accommodating the projecting piece 130 of the instrument main body 10 in the second state. The auxiliary projecting piece 743 is arranged side by side with the recess 719 formed by the claw-shaped protrusion 740 and the upper end surface 718 in the width direction (front-back direction) of the instrument main body 10.

The claw-shaped auxiliary protrusion 134 of the instrument body 10 is configured so that the auxiliary protrusion 743 of the cover 7 is locked. The claw-shaped auxiliary protrusion 134 is preferably formed integrally with the second side plate 13. The claw-shaped auxiliary protrusion 134 is formed, for example, by cutting up a part of the second side plate 13. The claw-shaped auxiliary protrusion 134 is formed in a claw shape. That is, the claw-shaped auxiliary protrusion 134 is configured to form an auxiliary recess 136 for inserting the tip of the auxiliary protrusion 743 of the cover 7 with the upper end surface of the protrusion 130. The claw-shaped auxiliary protrusion 134 has an auxiliary inclined surface 135 that contacts the tip of the auxiliary protrusion 743 of the cover 7 in the first state. In the second state, the auxiliary inclined surface 135 is inclined with respect to the arrangement direction (horizontal direction) so as to be separated from the cover main body 70 as it approaches the emergency light source unit 4.

In the second modification, the tip of the claw-shaped auxiliary protrusion 134 is bent upward, and the bent tip corresponds to the auxiliary guide portion. The auxiliary inclined surface 135 is provided at the tip (auxiliary guide portion). Further, in the second modification, the lower surface of the claw-shaped auxiliary protrusion 134 corresponds to the first auxiliary inner peripheral surface of the auxiliary recess 136, and the upper end surface of the projecting piece 130 is the first auxiliary inner peripheral surface of the auxiliary recess 136. Corresponds to the second auxiliary inner peripheral surface facing the surface. Then, in the facing direction (vertical direction) in which the lower surface of the claw-shaped auxiliary protrusion 134 and the upper end surface of the projecting piece 130 face each other, the distance between the auxiliary inclined surface 135 and the upper end surface of the projecting piece 130 is determined by the claw-shaped auxiliary projection 134. It is larger than the distance between the lower surface and the upper end surface of the projecting piece 130.

In this second modification, the operator displaces (rotates) the cover body 70 around the second locking portion 74 from the first state, so that the tip of the projecting piece 130 of the instrument body 10 is recessed 719. Get inside. Further, due to the above displacement, at the same time, the tip of the auxiliary projecting piece 743 of the cover 7 also slides on the auxiliary inclined surface 135 and enters the auxiliary recess 136. As a result, the holding of one end (left end) of the cover 7 with respect to the instrument body 10 is achieved. Therefore, as in the basic example, the number of screwed portions is smaller than that of the lighting fixture of Patent Document 1, and the mounting workability of the cover 7 can be improved.

In particular, in this second modification, since the auxiliary inclined surface 135 is provided on the instrument main body 10 side, the operator can position the cover main body 70 with the auxiliary inclined surface 135 as a guide. In short, the operator can bring the second locking portion 74 of the cover 7 closer to the auxiliary inclined surface 135 on the instrument main body 10 side while visually observing the auxiliary inclined surface 135 exposed through the opening 15 of the instrument main body 10. Therefore, the mounting workability of the cover 7 can be further improved as compared with the case where the inclined surface is provided only on the cover 7 side as in the basic example.

At least a part of the auxiliary protrusion 743 is provided at a position overlapping the cover main body 70 when the cover 7 is viewed along the penetration direction (vertical direction) through which the hole 711 penetrates, similarly to the claw-shaped protrusion 740. It is preferable that In the present embodiment, substantially all of the auxiliary projecting pieces 743 are provided at positions that overlap with the cover main body 70 when the cover 7 is viewed along the penetration direction (vertical direction). In other words, when the cover 7 is viewed from below, almost all of the auxiliary projecting pieces 743 are arranged so as to be hidden behind the cover main body 70. Therefore, it is possible to reduce the possibility that the claw-shaped protrusion 740 and the auxiliary protrusion 743 come into contact with other members and are damaged during the attachment work of the cover 7. Further, in this case, in the second state, it is possible to suppress a step generated between the left end surface of the second side plate 13 at the left end of the instrument body 10 and the left end surface of the first side wall portion 71A of the first cover body 71. The appearance of the lighting fixture 1 can be improved.

In this second modification, as shown in FIG. 16, one claw-shaped auxiliary protrusion 134 and one auxiliary projecting piece 743 are provided, but the number thereof is not limited to one, and two or more of them are provided. It may be provided. Further, one auxiliary projecting piece 743 extending long in the front-rear direction is provided, and one auxiliary projecting piece 743 is locked to two or more auxiliary recesses 136 (two or more claw-shaped auxiliary protrusions 134). It may be configured to do so.

(5) Advantages As described above, the lighting fixture 1 according to the first aspect includes a regular lighting device 2 that performs regular lighting, an emergency lighting device 3 that performs emergency lighting, a regular lighting device 2, and an emergency lighting device 2. A device main body 10 for accommodating the lighting devices 3 side by side is provided. The emergency lighting device 3 includes an emergency light source unit 4, an emergency power supply unit 5, a control device 6, and a cover 7. The control device 6 lights the emergency light source unit 4 with the electric power supplied from the emergency power supply unit 5. The cover 7 has a hole 711 through which the light emitted from the emergency light source unit 4 passes and covers the emergency light source unit 4. The fixture body 10 has a first locking portion 100 at one end of the fixture body 10 in the arrangement direction in which the regular lighting device 2 and the emergency lighting device 3 are lined up. The cover 7 has a cover body 70, a second locking portion 74 held by the first locking portion 100, and a cover main body 70 in a state where the second locking portion 74 is held by the first locking portion 100. It has a fixing portion 75 for fixing the device to the instrument body 10. The second locking portion 74 is provided at one end of the cover body 70 in the alignment direction. The fixing portion 75 is provided at the other end on the side opposite to one end of the cover body 70 in the alignment direction. One of the first locking portion 100 and the second locking portion 74 has a projecting piece (130,741). The other of the first locking portion 100 and the second locking portion 74 is a recess (719, 132) into which the projecting piece is inserted and locked, and a guide portion (guide portion 740B) for guiding the insertion of the projecting piece into the recess. , The tip of the claw-shaped protrusion 131). The recess has a first inner peripheral surface and a second inner peripheral surface facing the first inner peripheral surface. The guide portion has one surface that is continuous with the first inner peripheral surface of the recess, and the first inner peripheral surface and the second inner peripheral surface face each other in the opposite direction, and the first inner peripheral surface and the second inner peripheral surface of the guide portion are opposed to each other. The distance is larger than the distance between the first inner peripheral surface and the second inner peripheral surface.

According to this configuration, unlike the lighting fixture of Patent Document 1, the work of screwing both the cover and the spring member to the fixture body is unnecessary. As a result, the number of screwed portions is smaller than that of the lighting fixture of Patent Document 1, and the mounting workability of the cover 7 can be improved. In particular, the operator brings the tip of the projecting piece into contact with the above-mentioned one surface of the guide portion and rotates the cover body 70 toward the emergency light source unit 4 with the second locking portion 74 as an axis, whereby the tip of the projecting piece is formed. Can be easily inserted into the recess. As a result, the mounting workability of the cover 7 is further improved.

Regarding the lighting fixture 1 according to the second aspect, in the first aspect, the first locking portion 100 has a projecting piece 130, and the projecting piece 130 is oriented toward the emergency light source unit 4 along the alignment direction. It is preferable to project to. The second locking portion 74 preferably has a recess 719 and a guide portion 740B, and one surface of the guide portion 740B is an inclined surface 7401. It is preferable that the inclined surface 7401 is inclined with respect to the arrangement direction so that the cover 7 covers the emergency light source unit 4 and is closer to one end of the instrument main body 10 as the distance from the cover main body 70 increases.

According to this configuration, in the mounting work of the cover 7, the tip of the projecting piece 130 of the instrument body 10 is inclined by rotating the cover body 70 toward the emergency light source unit 4 about the second locking portion 74 as an axis. It slides on the 7401 and is inserted into the recess 719. That is, the insertion of the tip of the projecting piece 130 into the recess 719 can be achieved more easily. Therefore, the mounting workability of the cover 7 is further improved.

Regarding the lighting fixture 1 according to the third aspect, in the second aspect, the cover main body 70 has one end of an facing surface (upper end surface 718) facing the projecting piece 130 in a state where the cover 7 covers the emergency light source unit 4. It is preferable to have it in the part. The second locking portion preferably has a claw-shaped protrusion 740 that projects in a direction away from the facing surface. The claw-shaped protrusion 740 preferably has one surface 7402 that sandwiches the projecting piece 130 with the facing surface in a state where the cover 7 covers the emergency light source unit 4. It is preferable that the first inner peripheral surface of the recess 719 is formed by one surface 7402 of the claw-shaped protrusion 740, and the second inner peripheral surface of the recess 719 is formed by a facing surface. According to this configuration, it is possible to improve the mounting workability of the cover 7 even though the structure is simple.

Regarding the luminaire 1 according to the fourth aspect, in the third aspect, the claw-shaped projection 740 is preferably formed integrally with the cover main body 70. According to this configuration, the number of member points can be reduced as compared with the case where the claw-shaped protrusion 740 is separate from the cover main body 70.

Regarding the luminaire 1 according to the fifth aspect, it is preferable that at least two claw-shaped protrusions 740 are provided in the third or fourth aspect. According to this configuration, the cover 7 is held more stably with respect to the instrument main body 10 as compared with the case where the number of the claw-shaped protrusions 740 is one.

Regarding the lighting fixture 1 according to the sixth aspect, in the fifth aspect, the two claw-shaped protrusions 740 are facing surfaces (upper end surface 718) in the width direction of the fixture main body 10 orthogonal to the alignment direction and the facing direction. It is preferable that they are arranged at both ends of the above. According to this configuration, the cover 7 is stably held while suppressing the number of claw-shaped protrusions 740.

With respect to the luminaire 1 according to the seventh aspect, in any one of the third to sixth aspects, when at least a part of the claw-shaped protrusion 740 is viewed along the penetration direction through which the hole 711 penetrates. It is preferable that the cover body 70 is provided at a position overlapping the cover body 70. According to this configuration, it is possible to reduce the possibility that the claw-shaped protrusion 740 will come into contact with other members and be damaged during the attachment work of the cover 7.

Regarding the lighting fixture 1 according to the eighth aspect, in any one of the second to seventh aspects, the second locking portion 74 is arranged in the arrangement direction in a state where the cover 7 covers the emergency light source unit 4. It is preferable to further have an auxiliary projecting piece 743 that projects in a direction away from the emergency light source unit 4 along the line. The auxiliary projecting piece 743 is arranged side by side with the recess 719 in the width direction of the instrument main body 10 orthogonal to the arrangement direction and the opposite direction. The first locking portion 100 includes an auxiliary recess 136 into which the auxiliary protrusion 743 is inserted and locked, and an auxiliary guide portion (tip of the claw-shaped auxiliary protrusion 134) for guiding the insertion of the auxiliary protrusion 743 into the auxiliary recess 136. It is preferable to further have. The auxiliary recess 136 has a first auxiliary inner peripheral surface (lower surface of the claw-shaped auxiliary protrusion 134) and a second auxiliary inner peripheral surface (upper end surface of the projecting piece 130) facing the first auxiliary inner peripheral surface. The auxiliary guide portion preferably has an auxiliary inclined surface 135 continuous with the first auxiliary inner peripheral surface of the auxiliary recess 136. In the opposite direction in which the first auxiliary inner peripheral surface and the second auxiliary inner peripheral surface face each other, the distance between the auxiliary inclined surface 135 and the second auxiliary inner peripheral surface is the distance between the first auxiliary inner peripheral surface and the second auxiliary inner peripheral surface. It is preferably larger than the distance from. It is preferable that the auxiliary inclined surface 135 is inclined with respect to the arrangement direction so that the cover 7 covers the emergency light source unit 4 and is separated from the cover main body 70 as it approaches the emergency light source unit 4.

According to this configuration, the operator can bring the second locking portion 74 of the cover 7 closer to the auxiliary inclined surface 135 while visually observing the auxiliary inclined surface 135 provided on the instrument main body 10 side. As a result, the mounting workability of the cover 7 can be further improved as compared with the case where the inclined surface is provided only on the cover 7 side.

Regarding the luminaire 1 according to the ninth aspect, in the first aspect, the second locking portion 74 has a projecting piece 741, and the projecting piece 741 has a cover 7 covering the emergency light source unit 4. It is preferable to project in a direction away from the emergency light source unit 4 along the arrangement direction. The first locking portion 100 preferably has a recess 132 and a guide portion (the tip of the claw-shaped protrusion 131), and one surface of the guide portion is an inclined surface 133. It is preferable that the inclined surface 133 is inclined with respect to the arrangement direction so that the cover 7 covers the emergency light source unit 4 and is separated from the cover main body 70 as it approaches the emergency light source unit 4.

According to this configuration, the operator can bring the second locking portion 74 of the cover 7 closer to the inclined surface 133 while visually observing the inclined surface 133 provided on the instrument main body 10 side. As a result, the mounting workability of the cover 7 can be further improved as compared with the case where the inclined surface is provided on the cover 7 side.

1 Lighting equipment 2 Regular lighting equipment 3 Emergency lighting equipment 4 Emergency light source unit 5 Emergency power supply unit 6 Control unit 7 Cover 711 Hole 718 Upper end surface (opposing surface)
719 Recess 70 Cover body 74 Second locking part 740 Claw-shaped protrusion 740B Guide part 7401 Inclined surface 7402 One surface 741 Projection piece 743 Auxiliary projectile piece 75 Fixing part 10 Instrument body 100 First locking part 130 Projection piece 131 Claw-shaped protrusion 132 Recessed 133 Inclined surface 135 Auxiliary inclined surface 136 Auxiliary recess

Claims (9)

It is provided with a regular lighting device for performing regular lighting, an emergency lighting device for performing emergency lighting, and a fixture main body for accommodating the regular lighting device and the emergency lighting device side by side.
The emergency lighting device is radiated from the emergency light source unit, the emergency power supply unit, the control device that lights the emergency light source unit with the electric power supplied from the emergency power supply unit, and the emergency light source unit. A cover having a hole through which light passes and covering the emergency light source unit is provided.
The fixture body has a first locking portion at one end of the fixture body in the arrangement direction in which the regular lighting device and the emergency lighting device are lined up.
The cover has a cover main body, a second locking portion held by the first locking portion, and the cover main body being held by the first locking portion while the second locking portion is held by the first locking portion. It has a fixing part to be fixed to the main body,
The second locking portion is provided at one end of the cover body in the alignment direction.
The fixing portion is provided at the other end of the cover body opposite to the one end in the alignment direction.
One of the first locking portion and the second locking portion has a projecting piece, and the other of the first locking portion and the second locking portion is inserted and locked by the projecting piece. It has a recess and a guide portion for guiding the insertion of the protrusion into the recess.
The recess has a first inner peripheral surface and a second inner peripheral surface facing the first inner peripheral surface.
The guide portion has one surface continuous with the first inner peripheral surface of the recess, and with the one surface of the guide portion in a direction in which the first inner peripheral surface and the second inner peripheral surface face each other. A lighting fixture characterized in that the distance from the second inner peripheral surface is larger than the distance between the first inner peripheral surface and the second inner peripheral surface. The first locking portion has the projecting pieces, and the projecting pieces project in a direction approaching the emergency light source unit along the alignment direction.
The second locking portion has the recess and the guide portion, and one surface of the guide portion is an inclined surface.
The inclined surface is characterized in that, in a state where the cover covers the emergency light source unit, the inclined surface is inclined with respect to the arrangement direction so that the farther away from the cover body, the closer to the one end of the instrument body. The lighting equipment according to claim 1. The cover body has a facing surface facing the projecting piece at one end thereof in a state where the cover covers the emergency light source unit.
The second locking portion has a claw-shaped protrusion that protrudes in a direction away from the facing surface.
The claw-shaped protrusion has one surface that sandwiches the projecting piece with the facing surface in a state where the cover covers the emergency light source unit.
2. The first inner peripheral surface of the recess is formed by the one surface of the claw-shaped protrusion, and the second inner peripheral surface of the recess is formed by the facing surface. Lighting equipment described in. The luminaire according to claim 3, wherein the claw-shaped protrusion is formed integrally with the cover body. The luminaire according to claim 3 or 4, wherein the claw-shaped protrusions are provided at least two. The lighting fixture according to claim 5, wherein the two claw-shaped projections are arranged at both ends of the facing surface in the width direction of the fixture body orthogonal to the alignment direction and the facing direction. .. Any one of claims 3 to 6, wherein at least a part of the claw-shaped protrusion is provided at a position overlapping the cover body when viewed along the penetrating direction through which the hole penetrates. Lighting equipment described in the section. The second locking portion further includes an auxiliary projecting piece that projects in a direction away from the emergency light source unit along the alignment direction when the cover covers the emergency light source unit.
The auxiliary projecting pieces are arranged side by side with the recesses in the width direction of the instrument body orthogonal to the alignment direction and the facing direction.
The first locking portion further includes an auxiliary recess for inserting and locking the auxiliary protrusion, and an auxiliary guide portion for guiding the insertion of the auxiliary protrusion into the auxiliary recess.
The auxiliary recess has a first auxiliary inner peripheral surface and a second auxiliary inner peripheral surface facing the first auxiliary inner peripheral surface.
The auxiliary guide portion has an auxiliary inclined surface continuous with the first auxiliary inner peripheral surface of the auxiliary recess, and in a direction in which the first auxiliary inner peripheral surface and the second auxiliary inner peripheral surface face each other. The distance between the auxiliary inclined surface and the second auxiliary inner peripheral surface is larger than the distance between the first auxiliary inner peripheral surface and the second auxiliary inner peripheral surface.
The auxiliary inclined surface is characterized in that, in a state where the cover covers the emergency light source unit, the auxiliary inclined surface is inclined with respect to the arrangement direction so as to move away from the cover main body as it approaches the emergency light source unit. The lighting equipment according to any one of claims 2 to 7. The second locking portion has the projecting piece, and the projecting piece projects in a direction away from the emergency light source unit along the alignment direction in a state where the cover covers the emergency light source unit.
The first locking portion has the recess and the guide portion, and one surface of the guide portion is an inclined surface.
The inclined surface is characterized in that, in a state where the cover covers the emergency light source unit, the cover is inclined with respect to the arrangement direction so as to move away from the cover main body as it approaches the emergency light source unit. The lighting fixture according to claim 1.

Images