Luminaire

Abstract

To provide a luminaire for allowing easy specification change of a cover body to be fixed to a lighting part.SOLUTION: A luminaire 1 includes a lighting part 2 and a cover body 5. The lighting part 2 includes a light source 4 for emitting light to the outside of the lighting part 2. The cover body 5 is fixed to the lighting part 2 so as to be exposed to the light source 4. The cover body 5 includes: an outer cover body 530 allowing light to pass therethrough; an inner cover body 550 interposed between the outer cover body 530 and the light source 4, and allowing the light to pass therethrough; and a holder 510 holding the outer cover body 530 and the inner cover body 550 and fixed to the lighting part 2.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a lighting fixture, and more particularly to a lighting fixture including a lighting unit having a light source unit and a cover body fixed to the lighting unit.

Background Art

[0002] Patent Document 1 describes a lighting fixture installed on an attachment surface such as an outdoor wall surface. This lighting fixture includes a lighting unit that houses and holds a light source, a socket, a thermal protector, and a socket cap inside. The lighting unit has a base portion, an inner case, an outer case, a terminal block, a packing, and a stat.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In Patent Document 1, an inner case and an outer case that cover the light source are directly attached to the base portion in the lighting unit.

[0005] However, when changing the shape, light transmittance, color, etc. of the inner case or the like, the entire design of the inner case or the like needs to be changed, so the labor for specification changes increases.

[0006] An object of the present disclosure is to provide a lighting fixture in which the specification of the cover body fixed to the lighting unit can be easily changed.

Means for Solving the Problems

[0007] The lighting fixture according to one aspect of the present disclosure includes a lighting unit and a cover body. The lighting unit includes a light source unit that emits light toward the outside of the lighting unit. The cover body is fixed to the lighting unit so as to face the light source unit. The cover body includes an outer cover body that allows the light to pass through, an inner cover body that is interposed between the outer cover body and the light source unit and allows the light to pass through, and a holding body that holds the outer cover body and the inner cover body and is fixed to the lighting unit.

Effect of the Invention

[0008] According to one aspect of the present disclosure, by replacing at least one of the inner cover body and the outer cover body in the cover body, the specifications of the cover body can be changed, so it is easy to change the specifications of the cover body fixed to the lighting unit.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

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Figure 8

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Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

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Figure 17

Figure 18

Embodiments for Carrying Out the Invention

[0010] Embodiments of the lighting fixture according to the embodiments of the present disclosure will be described with reference to FIGS. 1 to 18. Note that the following embodiments are only a part of various embodiments of the present disclosure. Further, the following embodiments can be variously modified according to the design and the like as long as the object of the present disclosure can be achieved. Also, it is possible to appropriately combine the configurations of different embodiments.

[0011] All the figures referred to below are schematic figures, and the dimensional ratios of the components in the figures do not necessarily reflect the actual dimensional ratios.

[0012] 1. Overview The lighting fixture 1 according to an embodiment of the present disclosure includes a lighting unit 2 and a cover body 5. The lighting unit 2 includes a light source unit 4 that emits light toward the outside of the lighting unit 2. The cover body 5 is fixed to the lighting unit 2 so as to face the light source unit 4. The cover body 5 includes an outer cover body 530 that allows light to pass through, an inner cover body 550 that is interposed between the outer cover body 530 and the light source unit 4 and allows light to pass through, and a holding body 510 that holds the outer cover body 530 and the inner cover body 550 and is fixed to the lighting unit 2.

[0013] According to the embodiment, the holding body 510 can be responsible for the action of fixing the cover body 5 to the lighting unit 2. Further, the inner cover body 550 and the outer cover body 530 can be responsible for the action of controlling the lighting effect of the light emitted from the lighting fixture 1, and the outer cover body 530 can be responsible for the action of constituting the main appearance of the cover body 5. Here, the lighting effect refers to a combination such as the intensity of the light emitted to the outside of the lighting fixture 1, the distribution of the light intensity, the direction of the light, the degree of light scattering, and the color of the light. Further, when changing the lighting effect and when changing the appearance of the cover body 5, the configuration of one or both of the inner cover body 550 and the outer cover body 530 may be changed. Therefore, it is easy to change the specifications of the cover body 5. In addition, it is easy to share parts between cover bodies 5 with different specifications, and thus the productivity of a plurality of types of cover bodies 5 with different specifications can be increased.

[0014] Note that when the inner cover body 550 or the like allows light to pass through, it means that the inner cover body 550 or the like allows all of the light to pass through or allows a part of the light to pass through. Further, when the inner cover body 550 or the like allows light to pass through, it means that the inner cover body 550 or the like allows the light to pass through without changing the traveling direction of the light, or changes the traveling direction of the light and allows the light to pass through (that is, scatters the light). Further, when the inner cover body 550 or the like allows light to pass through, it means that the inner cover body 550 or the like transmits a part or all of the light, or the inner cover body 550 or the like does not inhibit the traveling of a part or all of the light. That the inner cover body 550 or the like does not inhibit the traveling of the light means, for example, that the inner cover body 550 or the like has an opening or the like through which the light can pass.

[0015] 2. First Embodiment The lighting fixture 1 of the first embodiment will be described with reference to FIGS. 1 to 9. In the following description, the side of the cover body 5 with respect to the lighting unit 2 is defined as the front in the embodiment, and the side of the lighting unit 2 with respect to the cover body 5 is defined as the rear in the embodiment. Also, as will be described later, the lighting unit 2 in the first embodiment includes an emergency light source unit 7, and the side on which the lens 70 of the emergency light source unit 7 is disposed with respect to the lighting unit 2 is defined as the bottom in the first embodiment, and the side opposite to the bottom is defined as the top in the first embodiment. Further, when the front, rear, top, and bottom in the first embodiment are regarded as the front, rear, top, and bottom for the observer, the right and left for the observer are defined as the right and left in the embodiment. In the second and third embodiments as well, the front, rear, top, bottom, right, and left are defined in the same manner. Note that the front, rear, top, bottom, right, and left are for convenience in explaining the configuration of the lighting fixture 1 and do not define the orientation of the lighting fixture 1 when it is used. The arrow X in the drawing indicates the left side in the left-right direction, the arrow Y indicates the front side in the front-rear direction, and the arrow Z indicates the bottom side in the up-down direction.

[0016] The lighting fixture 1 is, for example, attached to an outdoor wall surface such as around the entrance of a detached house or an apartment building and used. More specifically, the lighting fixture 1 is installed, for example, in the corridor of the common area of an apartment building or on the landing of a staircase, and serves as an emergency light and a staircase passage guiding light. Note that the use of the lighting fixture 1 is not limited to the above.

[0017] As shown in FIGS. 1 and 2, the lighting fixture 1 includes a lighting unit 2 and a cover body 5.

[0018] The lighting unit 2 includes a fixture main body 200, a support member 3, a light source unit 4, an emergency power source 6, an emergency light source unit 7, and an emergency lighting device 8.

[0019] (1) Lighting unit First, the lighting unit 2 will be described (see FIGS. 2, 3, 8, and 9).

[0020] The fixture body 200 in the lighting unit 2 is a box-shaped member with an open front and an accommodation space S1 inside. In this embodiment, the fixture body 200 is made of aluminum die-cast. The fixture body 200 has two side walls 20 arranged side by side left and right so as to sandwich the accommodation space S1. Each of the two side walls 20 includes an inner wall portion 21 facing the accommodation space S1 and an outer wall portion 22 located outside the inner wall portion 21.

[0021] The fixture body 200 further has two second side walls 23, 24 arranged one above the other so as to sandwich the accommodation space S1, and a bottom wall 25 located behind the accommodation space S1. The bottom wall 25 is rectangular in a front view. From the left and right sides of the bottom wall 25, two side walls 20 project forward. From the upper side of the bottom wall 25, one second side wall 23 projects forward, and from the lower side of the bottom wall 25, the other second side wall 24 projects forward. That is, the second side wall 23 is the upper side wall projecting from the upper side of the bottom wall 25, and the second side wall 24 is the lower side wall projecting from the lower side of the bottom wall 25. The outer wall portions 22 of the two side walls 20 and the two second side walls 23, 24 are continuously connected in a rectangular frame shape.

[0022] The accommodation space S1 is a space surrounded by the bottom wall 25, the two side walls 20, and the two second side walls 23, 24, and is open toward the front. The rear surface of the bottom wall 25 faces the wall side of the building where the lighting fixture 1 is installed.

[0023] The fixture body 200 has a drainage space S2 located between the inner wall portion 21 and the outer wall portion 22 in each of the two side walls 20. That is, the fixture body 200 has two drainage spaces S2, and the two drainage spaces S2 are arranged side by side left and right so as to sandwich the accommodation space S1. Each of the two drainage spaces S2 is a space surrounded by the inner wall portion 21, the outer wall portion 22, the upper second side wall 23, the lower second side wall 24, and the bottom wall 25. The two drainage spaces S2 are both open toward the front.

[0024] The inner wall portion 21 is located at a position away from the second side wall 23 below the upper second side wall 23. Therefore, when the support member 3 is not attached to the appliance main body 200, the upper ends of the respective two drainage spaces S2 and the upper end of the accommodation space S1 communicate with each other. When the support member 3 is attached to the appliance main body 200, the two drainage spaces S2 and the accommodation space S1 are in a state where they do not communicate with each other.

[0025] As shown in FIG. 8, the upper second side wall 23 has, at its two end portions in the left - right direction, through - holes 230 each in the shape of a long slit in the front - rear direction. The front - side end of the through - hole is open. The two through - holes 230 communicate with the two drainage spaces S2 respectively. The through - hole 230 is a portion through which a part of the cover body 5 passes when the cover body 5 is attached to and detached from the appliance main body 200. On the outer surface of a portion of the upper second side wall 23 adjacent to one (the right - hand side in this embodiment) of the through - holes 230, a recess 231 recessed more than other portions is provided. A screw hole 232 for attaching the screw 9 is provided in a part of the recess 231. By attaching the screw 9 to the screw hole 232, the head 90 of the screw 9 is positioned above the right - hand side through - hole 230, and the upward movement of the cover body 5 can be restricted. The head 90 of the screw 9 is received in the recess 231, thereby suppressing the protrusion above the uppermost surface of the upper second side wall 23.

[0026] As shown in FIG. 3, a bulging portion 233 protruding toward the accommodation space S1 (that is, downward) is provided on the lower surface of the upper second side wall 23.

[0027] In the lower second side wall 24, foreign - object discharge holes 240 are formed in a portion facing the drainage space S2, through which foreign matters such as water, insects, and dust that have entered the drainage space S2 can be discharged. In a portion of the lower second side wall 24 facing the accommodation space S1, foreign - object discharge holes 241 through which foreign matters that have entered the accommodation space S1 can be discharged are formed. In this embodiment, the foreign - object discharge holes 240 and the foreign - object discharge holes 241 are connected to each other and form one hole.

[0028] As shown in FIG. 8, a foreign matter discharge hole 250 is provided at the lower end of the portion of the bottom wall 25 facing the drainage space S2.

[0029] On the upper surface of the lower second side wall 24, an inclined surface 243 inclined downward toward the foreign matter discharge hole 240 and an inclined surface 244 inclined downward toward the foreign matter discharge hole 250 are formed in the portion facing the drainage space S2. Similarly, an inclined surface (not shown) inclined downward toward the foreign matter discharge hole 241 is formed in the portion of the upper surface of the lower second side wall 24 facing the accommodation space S1.

[0030] As shown in FIG. 3, the outer wall portion 22 is in the shape of a rectangular plate. One end (upper end) of the outer wall portion 22 is continuous with the upper second side wall 23, and the other end (lower end) of the outer wall portion 22 is continuous with the lower second side wall 24.

[0031] In this embodiment, the inner wall portion 21 includes a first portion 210 parallel to the outer wall portion 22, a second portion 211 parallel to the outer wall portion 22 and located outside the first portion 210, and an inclined third portion 212 connecting the first portion 210 and the second portion 211. Each of the first portion 210, the third portion 212, and the second portion 211 is in the shape of a rectangular plate. The first portion 210, the third portion 212, and the second portion 211 are continuously connected from top to bottom in this order.

[0032] As shown in FIG. 8, the inner wall portion 21 and the outer wall portion 22 are continuous through a plurality (three in this embodiment) of connecting portions 26 in the half portion (rear half portion) on the bottom wall 25 side. Specifically, the upper end portion and the central portion in the vertical direction of the first portion 210 are continuous with the outer wall portion 22 through the connecting portion 26, and the remaining portion excluding the lower end portion of the second portion 211 is continuous with the outer wall portion 22 through the connecting portion 26.

[0033] A connecting portion 27 used for connection with the cover body 5 is provided on the inner wall portion 21. In this embodiment, the connecting portion 27 is provided at the central portion in the front-rear direction on the inner wall portion 21, in front of the connecting portion 26.

[0034] The connecting portion 27 has a first locking portion 270 that protrudes from the first portion 210 of the inner wall portion 21 and is L-shaped in side view, and a second locking portion 271 that protrudes from the first portion 210 and the third portion 212 of the inner wall portion 21 and is L-shaped in side view. Each of the first locking portion 270 and the second locking portion 271 has a rib 272 in the form of a protrusion extending in the vertical direction, and a rib 273 extending forward from one longitudinal end (lower end) of the rib 272.

[0035] As shown in FIG. 3, the inner wall portion 21 is further provided with a pair of fixing portions 28 protruding toward the inside (accommodation space S1). Screws 11 for fixing the support member 3 are screwed into the pair of fixing portions 28. The fixing portions 28 are provided at one longitudinal end and the other end (i.e., the upper and lower ends) of the first portion 210, respectively.

[0036] The support member 3 is attached to the instrument body 200 so as to close the accommodation space S1 of the instrument body 200. The support member 3 includes a main body portion 30 that closes the accommodation space S1, and two side wall portions 31 (see FIG. 9) that respectively extend from the main body portion 30 so as to overlap the outer surfaces of the inner wall portions 21 of the two side walls 20. The support member 3 is made of, for example, metal and is formed by bending a single metal plate.

[0037] The light source unit 4 is attached to the main body portion 30. The main body portion 30 functions as a reflector that reflects the light from the light source unit 4. The main body portion 30 is in the form of a plate having a substantially rectangular shape in plan view. The main body portion 30 has an outer shape corresponding to the two inner wall portions 21. Each of the left end side and the right end side of the main body portion 30 is bent along the first portion 210, the third portion 212, and the second portion 211 of the inner wall portion 21. The left-right dimension of the portion of the main body portion 30 that closes the space between the two second portions 211 is longer than the left-right dimension of the portion of the main body portion 30 that closes the space between the two first portions 210. An extension portion 32 extending outward in the left-right direction is formed at the lower end portion of the main body portion 30. The lower end portion of the main body portion 30 is elongated in the left-right direction by the amount of the two extension portions 32. Through holes 300 into which the screws 11 are inserted are provided in the portion of the main body portion 30 corresponding to the four fixing portions 28.

[0038] In the main body portion 30, the side wall portion 31 extends rearward from the portion corresponding to each first portion 210 of the two inner wall portions 21 (that is, the portion above the extension portion 32). As shown in FIG. 9, the two side wall portions 31 extend rearward and inward in the left - right direction from the main body portion 30 such that the interval between the two side wall portions 31 becomes narrower toward the front - end side (rear side).

[0039] As shown in FIG. 3, each of the two side wall portions 31 is in a strip - plate shape. The upper - end portion of each of the two side wall portions 31 is longer on the rear side than the portion below it.

[0040] The support member 3 further includes an eaves portion 33 that protrudes obliquely upward and rearward from the upper - end edge of the main body portion 30. The eaves portion 33 is in a strip - plate shape extending in the left - right direction. At each of the left and right end portions of the eaves portion 33, an extension portion 330 that overlaps the outer surface of the side wall portion 31 is provided.

[0041] The support member 3 is fixed to the appliance main body 200 by being attached to four fixing portions 28 of the appliance main body 200 by four screws 11. With the support member 3 fixed to the appliance main body 200, the pair of side wall portions 31 overlap the outer surfaces of the pair of inner wall portions 21. In this embodiment, at least a part of each of the two side wall portions 31 is in contact with the outer surface of the corresponding inner wall portion 21. And the side wall portion 31 and the outer surface of the inner wall portion 21 are in elastic contact.

[0042] More specifically, as shown in FIG. 9, the tip portion (rear - end portion) of each side wall portion 31 is in elastic contact with the outer surface of the corresponding inner wall portion 21. Thereby, no gap is generated between the tip portion (rear - end portion) of the side wall portion 31 and the outer surface of the inner wall portion 21.

[0043] The light - source portion 4 shown in FIG. 3 is a normal - use light - source unit that is lit by electric power from a normal power source (for example, a commercial power source). As the light - source portion 4, an appropriate normal - use light - source unit can be adopted. The light - source portion 4 is supported by the support member 3 and irradiates light in front of the support member 3.

[0044] The light source unit 4 includes a light source, a lens that controls the light distribution of the light emitted from the light source, a diffusion member 40 provided in front of the lens to diffuse the light from the lens, and a normal lighting device that lights the light source with normal power supplied from a normal power source.

[0045] The light source is, for example, a white LED (Light Emitting Diode) for illumination. The lens is formed of a light-transmissive material such as glass. Note that the lens may be formed of a synthetic resin such as polycarbonate resin or acrylic resin. The light source and the lens are attached to the front surface of the central portion of the main body portion 30 of the support member 3.

[0046] The diffusion member 40 is formed in a dome shape that protrudes forward from the central portion of the main body portion 30 of the support member 3 and opens rearward. The diffusion member 40 has a dome portion and an annular flange portion that protrudes outward from the periphery of the rear end portion of the dome portion.

[0047] The diffusion member 40 is formed by mixing a diffusing material into a light-transmissive synthetic resin such as acrylic resin or polycarbonate resin. The diffusion member 40 is attached to the central portion of the main body portion 30 of the support member 3 by fixing the flange portion to the main body portion 30 with a fixture such as a screw.

[0048] The normal lighting device is attached to the rear surface of the main body portion 30 of the support member 3 and is electrically connected to the light source. The normal lighting device has a circuit board including a power conversion circuit that converts the AC power supplied from the normal power source into DC power, a constant current circuit that makes the DC current supplied to the light source constant, and the like.

[0049] In the light source unit 4 of the present embodiment, the light emitted from the light source is subjected to light distribution control by the lens, travels so as to spread in the vertical and horizontal directions toward the front of the instrument main body 200, and is diffused by the diffusion member 40.

[0050] The emergency power source 6 in the lighting unit 2 has a plurality of battery cells electrically connected in series. Each of the plurality of battery cells is, for example, a nickel-metal hydride storage battery. The emergency power source 6 is charged with normal power supplied from the normal power source. The emergency power source 6 is attached to the bottom wall 25 so as to be located in the accommodation space S1 of the lighting unit 2.

[0051] The emergency light source unit 7 is configured to emit illumination light downward from the lower surface of the lighting unit 2.

[0052] The emergency light source unit 7 has a light source (not shown) and a lens 70 that controls the light distribution of the light emitted from the light source. The light source is, for example, an illumination white LED. The lens 70 is formed of a light-transmissive material such as quartz glass.

[0053] The emergency light source unit 7 is attached to the lower second side wall 24 such that a part (lower part) of the lens 70 protrudes outside (lower side) of the lighting unit 2 through the insertion hole 242 of the lower second side wall 24. The remaining part of the emergency light source unit 7 except for the lower part of the lens 70 is disposed in the accommodation space S1.

[0054] An emergency lighting device 8 is electrically connected to the light source of the emergency light source unit 7. The emergency lighting device 8 is a device that lights the emergency light source unit 7 with emergency power (DC power) supplied from the emergency power source 6 when a power failure occurs in the normal power source. The emergency lighting device 8 is attached to the bottom wall 25 so as to be located in the accommodation space S1 of the lighting unit 2.

[0055] (2) Cover body The cover body 5 in the present embodiment will be described (see FIGS. 1 to 9).

[0056] The cover body 5 includes an outer cover body 530, an inner cover body 550, and a holding body 510.

[0057] The outer cover body 530 has the function of allowing the light emitted from the light source unit 4 and passing through the inner cover body 550 to pass through and be emitted to the outside of the lighting fixture 1. The outer cover body 530 includes a main body plate 534, two side plates 535, and two support pieces 536 (see FIGS. 4 and 5). The two side plates 535 extend from the left end side and the left end side of the main body plate 534 rearward respectively. The two support pieces 536 extend inward in the left-right direction from the rear end sides of the two side plates 535 respectively. The main body plate 534 is rectangular when viewed in the front-rear direction. Each of the two side plates 535 is vertically long rectangular when viewed in the left-right direction. Each of the two support pieces 536 is vertically long rectangular when viewed in the front-rear direction. There is a gap between the two support pieces 536. Each of the two support pieces 536 has a through hole 537 penetrating in the front-rear direction. Each support piece 536 has two through holes 537, and the two through holes 537 are arranged at intervals in the vertical direction.

[0058] The outer cover body 530 has light transmissivity. That is, the outer cover body 530 is made of a material having light transmissivity. The outer cover body 530 is made of, for example, a transparent resin material. The resin material is, for example, an acrylic resin such as polymethyl methacrylate, or a polycarbonate resin, but is not limited thereto. The outer cover body 530 may be made of quartz glass.

[0059] In this embodiment, the outer cover body 530 is colored. Therefore, an illumination effect corresponding to the color of the outer cover body 530 can be obtained. The outer cover body 530 may be colored with a chromatic color, or may be colored with an achromatic color, that is, white or black. The outer cover body 530 is colored, for example, by being coated with a transparent colored paint. Also, the outer cover body 530 may be colored by attaching a transparent colored film such as a smoke film. Also, the outer cover body 530 may be colored by being made of a material containing a coloring agent.

[0060] The inner cover body 550 has a function of allowing the light emitted from the light source unit 4 to pass through and emitting it toward the outer cover body 530. The inner cover body 550 includes a main part 551 and a support part 556 (see FIGS. 4 and 5).

[0061] The main part 551 is box-shaped with an opening 557 facing rearward. The main part 551 is generally rectangular parallelepiped-shaped, and has a main board 552 constituting the front side surface, two side boards 554 respectively constituting the left and right side surfaces, a first end board 553 constituting the upper side surface, and a second end board 555 constituting the lower side surface. The main board 552 is rectangular when viewed in the front-rear direction, each side board 554 is rectangular and vertically long when viewed in the left-right direction, and each of the first end board 553 and the second end board 555 is rectangular and horizontally long when viewed in the up-down direction. The opening 557 is rectangular when viewed in the front-rear direction.

[0062] The support part 556 has a flange-like shape extending outward from the entire edge of the opening 557. When viewed in the front-rear direction, the outer periphery of the support part 556 is rectangular and larger than the outer periphery of the opening. The support part 556 has two fixing recesses 560 at each of its left and right end edges. At each end edge, the two fixing recesses 560 are arranged at intervals in the up-down direction. The fixing recess 560 has a shape that is recessed in an arc shape toward the inner side in the left-right direction. That is, the fixing recess 560 is arc-shaped when viewed in the front-rear direction and is open to the front, rear, and the outer sides in the left-right direction. From the arc-shaped edge of each fixing recess 560, a fixing rib 559 protrudes rearward. The fixing rib 559 is arc-shaped along the edge of the fixing recess 560 when viewed in the front-rear direction.

[0063] The inner cover body 550 has light transmissibility. That is, the inner cover body 550 is made of a material having light transmissibility. The inner cover body 550 in the present embodiment is colorless and transparent. The inner cover body 550 is made of, for example, a transparent resin material. The resin material is, for example, an acrylic resin such as polymethyl methacrylate, but is not limited thereto. The inner cover body 550 may be made of quartz glass.

[0064] The outer surface of the inner cover body 550 has a corrugated shape. Specifically, each of the outer surface of the main board 552, the outer surface of the first end plate 553, and the outer surface of the second end plate 555 has a corrugated shape. On the outer surface of the main board 552, convex portions that are long in the vertical direction and concave portions that are long in the vertical direction are formed so as to be arranged alternately in the left-right direction. Thus, the outer surface of the main board 552 has a corrugated shape when viewed in the vertical direction. Each of the outer surface of the first end plate 553 and the outer surface of the second end plate 555 is formed such that convex portions that are long in the front-rear direction and concave portions that are long in the front-rear direction are arranged alternately in the left-right direction. Thus, each of the outer surface of the first end plate 553 and the outer surface of the second end plate 555 has a corrugated shape when viewed in the front-rear direction. Due to this corrugated shape, the light passing through the inner cover body 550 is scattered, and a corresponding lighting effect is obtained.

[0065] The holder 510 includes a first member 510A, a second member 510B, and a third member 510C (see FIGS. 4 and 5). The holder 510 is separable into the first member 510A, the second member 510B, and the third member 510C. That is, the holder 510 is configured by combining the first member 510A, the second member 510B, and the third member 510C.

[0066] The first member 510A has a main board 511, two side plates 514, a first end plate 513, and a second end plate 515.

[0067] The main board 511 is rectangular when viewed in the front-rear direction. The two side plates 514 extend rearward from the left and right edges of the main board 511 respectively. Each side plate 514 is rectangular and vertically long when viewed in the left-right direction. The first end plate 513 extends rearward from the upper edge of the main board 511. The first end plate 513 is rectangular and horizontally long when viewed in the up-down direction. The second end plate 515 extends rearward from the lower edge of the main board 511. The first end plate 513 is rectangular and horizontally long when viewed in the up-down direction. The upper ends of the left and right side plates 514 are connected to the left and right ends of the first end plate 513 respectively, and the lower ends of the left and right side plates 514 are connected to the left and right ends of the second end plate 515 respectively. As a result, the combination of the two side plates 514, the first end plate 513, and the second end plate 515 forms a rectangular frame shape. The main board 511 has an opening 512. The opening 512 is rectangular when viewed in the front-rear direction. The main board 511 has a boss 516 protruding rearward from its rear surface. The boss 516 is cylindrical, and there is a fixing hole 517 penetrating the main board 511 in the front-rear direction inside the boss 516. In the embodiment, the main board 511 has four bosses 516 and fixing holes 517 corresponding to each boss 516. Two bosses 516 are arranged vertically at positions separated to the left from the left edge of the opening 512, and another two bosses 516 are arranged vertically at positions separated to the right from the right edge of the opening 512.

[0068] The second member 510B and the third member 510C are arranged side by side in the left - right direction. The second member 510B and the third member 510C have shapes that are substantially symmetric with respect to a virtual plane that is between them and orthogonal to the left - right direction. Each of the second member 510B and the third member 510C has an overlapping portion 571, a fixing piece 538, and a cover connection portion 572. The overlapping portion 571 is in the shape of a flat plate having a thickness in the left - right direction and is long in the up - down direction when viewed in the left - right direction. The cover connection portion 572 includes a first connection portion 573 and a second connection portion 574. Each of the first connection portion 573 and the second connection portion 574 includes a first rib 575 and a second rib 576. The first rib 575 of the first connection portion 573 and the first rib 575 of the second connection portion 574 are arranged one above the other in the up - down direction, and the first rib 575 of the first connection portion 573 is located above. The second rib 576 of the first connection portion 573 and the second rib 576 of the second connection portion 574 are arranged one above the other in the up - down direction, and the second rib 576 of the first connection portion 573 is located above. The first rib 575 protrudes inward in the left - right direction from a part of the rear - side end edge of the overlapping portion 571. The first rib 575 has a thickness in the front - rear direction and is long in the up - down direction. The second rib 576 protrudes inward in the left - right direction from the inner surface in the left - right direction of the overlapping portion 571. The second rib 576 has a thickness in the up - down direction and is long in the front - rear direction. The first rib 575 and the second rib 576 in the first connection portion 573 are arranged with a gap in the front - rear direction and without a gap in the up - down direction. In the second connection portion 574, the first rib 575 and the second rib 576 are arranged with a gap in the front - rear direction and also with a gap in the up - down direction. The fixing piece 538 extends inward in the left - right direction from the front - side end edge of the overlapping portion 571. The fixing piece 538 has a thickness in the front - rear direction and is long in the up - down direction. The fixing piece 538 has a fixing hole 539 that penetrates in the front - rear direction. Each fixing piece 538 has two fixing holes 539, and the two fixing holes 539 are arranged at intervals in the up - down direction.

[0069] Each of the second member 510B and the third member 510C is manufactured, for example, by bending a metal plate material. In this case, the second rib 576 is manufactured, for example, by a stamping - up process.

[0070] As shown in FIGS. 6 and 7, in the cover body 5, the support portion 556 of the inner cover body 550 overlaps with the rear surface of the main board 511 in the first member 510A of the holding body 510 around the opening 512. The main portion 551 of the inner cover body 550 is disposed forward of the main board 511 through the opening 512. Each of the four bosses 516 fits into the corresponding fixing recess 560 and fixing rib 559. That is, the four bosses 516 fit into the corresponding four fixing recesses 560 and fixing ribs 559 respectively. The rear surface of the boss 516 is located rearward of the rear surface of the fixing rib 559. That is, the boss 516 protrudes rearward more than the fixing rib 559.

[0071] The main body plate 534 of the outer cover body 530 is in front of the main board 511 of the holding body 510 and the main portion 551 of the inner cover body 550. The main body plate 534 and the main board 511 are separated in the front-rear direction, and the main body plate 534 and the main portion 551 are separated in the front-rear direction. The two support pieces 536 of the outer cover body 530 are located rearward of the first member 510A and the inner cover body 550. The portion of each boss 516 that protrudes rearward more than the fixing rib 559 fits into the through hole 537 in the support piece 536. The above-mentioned portions of the four bosses 516 fit into the four through holes 537 in the outer cover body 530 respectively. The rear surface of the fixing rib 559 overlaps with the front surface of the support piece 536. The rear surface of the boss 516 and the rear surface of the support piece 536 are flush.

[0072] The holding body 510 sandwiches a part of the outer cover body 530 and a part of the inner cover body 550 between the first member 510A and the second member 510B, and sandwiches a different part of the outer cover body 530 and a different part of the inner cover body 550 between the first member 510A and the third member 510C. Thereby, the holding body 510 holds the outer cover body 530 and the inner cover body 550.

[0073] Specifically, the fixing piece 538 in the second member 510B is located behind the outer edge portion on the right side of the opening 512 in the main board 511 of the first member 510A. Between the fixing piece 538 and the outer edge portion on the right side of the opening 512 in the main board 511, the right support piece 536 of the outer cover body 530 and the right side portion of the main part 551 of the support portion 556 of the inner cover body 550 are interposed. The two fixing holes 539 in the fixing piece 538 and the two fixing holes 517 on the right side of the opening 512 in the main board 511 are aligned with each other. By fitting the screw 580, which is a fixing tool, into each of the fixing holes 539 and the fixing holes 517, the second member 510B is fixed to the first member 510A. Also, thereby, the right support piece 536 of the outer cover body 530 and the right side portion of the main part 551 of the support portion 556 of the inner cover body 550 are sandwiched and fixed between the fixing piece 538 and the outer edge portion on the right side of the opening 512 in the main board 511.

[0074] Furthermore, the fixing piece 538 in the third member 510C is located behind the outer edge portion on the left side of the opening 512 in the main board 511 of the first member 510. Between the fixing piece 538 and the outer edge portion on the left side of the opening 512 in the main board 511, the left support piece 536 of the outer cover body 530 and the left side portion of the main part 551 of the support portion 556 of the inner cover body 550 are interposed. The two fixing holes 539 in the fixing piece 538 and the two fixing holes 517 on the left side of the opening 512 in the main board 511 are aligned with each other. By fitting the screw 580, which is a fixing tool, into each of the fixing holes 539 and the fixing holes 517, the third member 510C is fixed to the first member 510A. Also, thereby, the left support piece 536 of the outer cover body 530 and the left side portion of the main part 551 of the support portion 556 of the inner cover body 550 are sandwiched and fixed between the fixing piece 538 and the outer edge portion on the left side of the opening 512 in the main board 511.

[0075] Thereby, the holder 510 holds the outer cover body 530 and the inner cover body 550.

[0076] The cover body 5 configured in this way includes a cover main body 50 including an outer cover body 530, a first member 510A, and an inner cover body 550, and two overlapping portions 571 extending rearward from the right and left edge portions of the cover main body 50, respectively. The cover main body 50 has an upwardly and downwardly open space 590 surrounded by a main body plate 534, two side plates 535, and a main board 511, and a main portion 551 of the inner cover body 550 is disposed in this space 590.

[0077] (3) Lighting fixture As shown in FIGS. 8 and 9, in the cover body 5, for the lighting unit 2 with the screw 9 removed, the first rib 575 of the second connecting portion 574 passes between the locking portions 270 and 271 of the lighting unit 2, and each overlapping portion 571 is inserted into the drainage space S2 of the side wall 20 and slid downward to be attached to the lighting unit 2. Thereby, the cover body 5 is attached to the lighting unit 2. In this state, the screw 9 is attached to the screw hole 232 of the recess 231 of the second side wall 23 on the upper side of the lighting unit 2, so that the head 90 of the screw 9 is positioned above the overlapping portion 571 on the right side of the cover body 5. Thereby, the cover body 5 is attached to the lighting unit 2 in a state where upward movement is restricted.

[0078] The cover body 5 is attached to the lighting unit 2 so as to cover the light source unit 4 and the support member 3 from the front side. The cover main body 50 is positioned in front of the support member 3. The light source unit 4 of the lighting unit 2 is disposed inside the main portion 551 of the inner cover body 550. Each of the two overlapping portions 571 is disposed inside the lighting unit 2. Each overlapping portion 571 is disposed along the outer wall portion 22 of the lighting unit 2 so as to overlap the inner surface of this outer wall portion 22. The fixing piece 538 closes the front opening of the drainage space S2.

[0079] The first connection part 573 is connected to the first locking part 270 of the lighting part 2, and the second connection part 574 is connected to the second locking part 271 of the lighting part 2. That is, in the first connection part 573, the first rib 575 and the second rib 576 sandwich the rib 272 of the first locking part 270. In the second connection part 574, the first rib 575 and the second rib 576 sandwich the rib 272 of the second locking part 271. Further, the second rib 576 of the second connection part 574 is supported from below by the rib 273 of the second locking part 271 of the lighting part 2.

[0080] The fixing piece 538 is located above the extension part 32 of the main body part 30 of the support member 3. The front surface of the fixing piece 538 is substantially in the same position in the front - rear direction as the front surface of the main body part 30 of the support member 3.

[0081] The overlapping part 571 on the right side is shorter in the vertical direction than the overlapping part 571 on the left side. The upper end of the overlapping part 571 on the right side is located below the upper end of the overlapping part 571 on the left side. The upper end of the overlapping part 571 on the right side is located at substantially the same vertical position as the bottom surface (upper surface) of the recess 231 of the lighting part 2. And the upper end of the overlapping part 571 on the left side is located at substantially the same vertical position as the uppermost surface (the upper surface of the part other than the recess 231) of the lighting part 2.

[0082] In the lighting fixture 1 of the present embodiment, when the light source part 4 emits light, the light sequentially passes through the inner cover body 550 and the outer cover body 530 and is emitted to the outside of the lighting fixture 1. At this time, by each of the inner cover body 550 and the outer cover body 530, a combination (lighting effect) such as the intensity of the light emitted to the outside of the lighting fixture 1, the distribution of the light intensity, the direction of the light, the degree of light scattering, and the color of the light is controlled. In the present embodiment, since the inner cover body 550 is colorless and transparent and its outer surface has a corrugated shape, the light is scattered by passing through the inner cover body 550, and further has a color corresponding to the color of the colored outer cover body 530 by passing through the outer cover body 530.

[0083] In this embodiment, if the configuration of one or both of the inner cover body 550 and the outer cover body 530 in the cover body 5 is changed, the lighting effect can be changed. Further, by changing the configuration of the outer cover body 530, the appearance of the lighting fixture 1 can also be changed. For example, in this embodiment, only the inner cover body 550 can be changed to a milky white inner cover body 550, changed to an inner cover body 550 colored with a color other than white, or changed to an inner cover body 550 having a flat outer surface. The inner cover body 550 is not limited to the above. For example, the inner cover body 550 may be milky white and have a flat outer surface, or may be colored with a color other than white and have a flat outer surface. Also, for example, in this embodiment, only the outer cover body 530 can be changed to a colorless and transparent outer cover body 530, changed to an outer cover body 530 having a concavo-convex outer surface, or changed to an outer cover body 530 having an opening for passing light. Therefore, it is easy to change the specifications of the cover body 5. The configuration of the outer cover body 530 is not limited to the above. Also, it is possible to share parts between cover bodies 5 with different specifications. For example, one or two of the holder 510, the inner cover body 550, and the outer cover body 530 can be shared between cover bodies 5 with different specifications. Therefore, the productivity of a plurality of types of cover bodies 5 with different specifications can be increased.

[0084] Also, in this embodiment, the main board 511 in the holder 510 is arranged at a distance from the support member 3 in front of the support member 3. Further, the two side plates 514, the first end plate 513, and the second end plate 515 in the holder 510 are arranged between the main board 511 and the support member 3 on the outer periphery of the main board 511. For this reason, the holder 510 makes it difficult to visually recognize the support member 3 from the outside of the lighting fixture 1. Thereby, the appearance of the lighting fixture 1 is improved.

[0085] In addition, in the lighting fixture 1 of the present embodiment, the lighting unit 2 has two side walls 20 sandwiching the accommodation space S1, and each side wall 20 includes an inner wall portion 21 facing the accommodation space S1 and an outer wall portion 22 located outside the inner wall portion 21. Further, the cover body 5 has a cover main body 50 located in front of the support member 3 and two overlapping portions 571 extending from the cover main body 50 so as to overlap the inner surfaces of the outer wall portions 22 of the two side walls 20, respectively. Furthermore, the support member 3 includes a main body portion 30 closing the accommodation space S1 and two side wall portions 31 extending from the main body portion 30 so as to overlap the outer surfaces of the inner wall portions 21 of the two side walls 20, respectively.

[0086] Therefore, the lighting fixture 1 has a first water-stop structure in which the outer wall portion 22 of the lighting unit 2 and the overlapping portion 571 of the cover body 5 overlap, and a second water-stop structure in which the side wall portion 31 of the support member 3 and the inner wall portion 21 of the lighting unit 2 overlap. Thus, the entry of water from between the lighting unit 2 and the cover body 5 to the accommodation space S1 inside the lighting unit 2 can be suppressed by the two-stage water-stop structure formed by a part of the configurations of the lighting unit 2, the cover body 5, and the support member 3. Therefore, in the lighting fixture 1 of the present embodiment, it is not necessary to use a packing having weather resistance, so that a decrease in appearance quality can be suppressed, and a waterproof function equivalent to that when a packing is used can be exhibited.

[0087] 3. Second Embodiment The lighting fixture 1 of the second embodiment will be described with reference to FIGS. 10 and 11.

[0088] The lighting fixture 1 of the second embodiment is the same as the lighting fixture 1 of the first embodiment except that the configurations of the outer cover body 530 and the inner cover body 550 are different.

[0089] The outer cover body 530 is made of a material that does not transmit light. The outer cover body 530 is made of a metal such as aluminum, for example. The outer cover body 530 has an opening through which light passes. Specifically, the main body plate 534 of the outer cover body 530 has a plurality of slit-shaped openings 528 that are long in the vertical direction. The plurality of openings 528 are arranged side by side in the left-right direction. The outer cover body 530 is manufactured by, for example, performing cutting, punching, and bending processes on a metal plate. Except for the above configuration, the outer cover body 530 has the same configuration as that of the first embodiment. By allowing light to pass through at the opening 528 and shielding light at portions other than the opening 528, a corresponding lighting effect can be obtained.

[0090] The outer surface of the inner cover body 550 is flat. Also, the inner cover body 550 is milky white. The inner cover body 550 is made of a material containing, for example, a white colorant or a light diffusing material, or the outer surface of the inner cover body 550 has fine irregularities, resulting in a milky white color. When light passes through the inner cover body 550, the light becomes whitish or is scattered, and a corresponding lighting effect can be obtained.

[0091] Also in the second embodiment, as in the case of the first embodiment, the productivity of a plurality of types of cover bodies 5 with different specifications can be increased. For example, the holding body 510 can be made common between the cover body 5 in the second embodiment and the cover body 5 in the first embodiment. Also, the outer cover body 530 of the first embodiment can be replaced with the outer cover body 530 of the second embodiment, and the inner cover body 550 of the first embodiment can also be replaced with the inner cover body 550 of the second embodiment.

[0092] 4. Third Embodiment The lighting fixture 1 of the third embodiment will be described with reference to FIGS. 12 to 18.

[0093] As shown in FIGS. 12 and 13, the lighting fixture 1 includes a lighting unit 2 and a cover body 5.

[0094] The lighting unit 2 includes an appliance body 200, a support member 3, a light source unit 4, an emergency power source 6, an emergency light source unit 7, and an emergency lighting device 8.

[0095] (1) Lighting unit The configuration of the lighting unit 2 is the same as that of the first embodiment and the second embodiment.

[0096] (2) Cover body The cover body 5 in this embodiment will be described (see FIGS. 12 to 18).

[0097] The cover body 5 includes an outer cover body 530, an inner cover body 550, and a holding body 510.

[0098] The outer cover body 530 has a function of allowing the light emitted from the light source unit 4 and passing through the inner cover body 550 to pass through and be emitted to the outside of the lighting fixture 1 (see FIGS. 14 and 15). The outer cover body 530 has a main part 540 and four leg parts 544. The main part 540 has an upper frame part 541, two side frame parts 542, and a lower frame part 543. The upper frame part 541 has a long bar shape in the left - right direction. Each of the two side frame parts 542 has a long bar shape in the up - down direction. The two side frame parts 542 are arranged side by side in the left - right direction with a gap therebetween. The left end of the upper frame part 541 is connected to the upper end of the left - hand side frame part 542, and the right end of the upper frame part 541 is connected to the upper end of the right - hand side frame part 542. The lower frame part 543 has a long bar shape in the left - right direction. The lower frame part 543 is located below the upper frame part 541. The left end of the lower frame part 543 is connected to the lower end of the left - hand side frame part 542, and the right end of the lower frame part 543 is connected to the lower end of the right - hand side frame part 542. Therefore, the main part 540 is in a square - frame shape. The four leg parts 544 each project rearward from the four corners of the main part 540. That is, the leg parts 544 project rearward from the connection points where the left end of the upper frame part 541 connects to the upper end of the left - hand side frame part 542, the connection point where the right end of the upper frame part 541 connects to the upper end of the right - hand side frame part 542, the connection point where the left end of the lower frame part 543 connects to the lower end of the left - hand side frame part 542, and the connection point where the right end of the lower frame part 543 connects to the lower end of the right - hand side frame part 542. Each leg part 544 has a fixing hole 545 that opens on its rear - side surface.

[0099] The main body 540 and the four legs 544 of the outer cover body 530 do not transmit light. Also, the outer cover body 530 has an opening through which light passes. That is, the outer cover body 530 has an opening 549 surrounded by the upper frame portion 541, the two side frame portions 542, and the lower frame portion 543. The outer cover body 530 also has an opening 546 surrounded by the upper frame portion 541, the upper right leg 544, and the upper left leg 544. The outer cover body 530 also has an opening 547 surrounded by the right side frame portion 542, the upper right leg 544, and the lower right leg 544, and an opening 547 surrounded by the left side frame portion 542, the upper left leg 544, and the lower left leg 544. The outer cover body 530 also has an opening 548 surrounded by the lower frame portion 543, the lower right leg 544, and the lower left leg 544.

[0100] The outer cover body 530 is made of a metal such as an aluminum alloy die-cast material (ADC). The material of the outer cover body 530 is not limited to the above, and for example, the outer cover body 530 may be made of a resin material. The outer cover body 530 may be painted.

[0101] The inner cover body 550 has a function of passing the light emitted from the light source unit 4 and emitting it toward the outer cover body 530. The inner cover body 550 includes a main body 551 and a support portion 556 (see FIGS. 14 and 15).

[0102] The main body 551 is box-shaped with an opening 557 facing rearward. The main body 551 is generally rectangular parallelepiped-shaped and has a main board 552 constituting the front side surface, two side boards 554 respectively constituting the left and right side surfaces, a first end board 553 constituting the upper side surface, and a second end board 555 constituting the lower side surface. The main board 552 is rectangular when viewed in the front-rear direction, each side board 554 is vertically long rectangular when viewed in the left-right direction, and each of the first end board 553 and the second end board 555 is horizontally long rectangular when viewed in the up-down direction. The opening 557 is rectangular when viewed in the front-rear direction.

[0103] The support portion 556 has a flange-like shape that extends outward from the entire edge of the opening 577. When viewed in the front-rear direction, the outer periphery of the support portion 556 is rectangular and larger than the outer periphery of the opening. The support portion 556 has two fixing recesses 561 at each of its upper and lower end edges. On each end edge, the two fixing recesses 561 are arranged side by side with a space therebetween. The fixing recess 561 has a shape that is recessed in an arc shape toward the inside in the vertical direction. That is, the fixing recess 561 is arc-shaped when viewed in the front-rear direction and is open to the outside in the front, rear, and left-right directions. From the arc-shaped edge of each fixing recess 561, a fixing rib 562 protrudes rearward. The fixing rib 562 is arc-shaped along the edge of the fixing recess 561 when viewed in the front-rear direction.

[0104] The inner cover body 550 has light transmissibility. That is, the inner cover body 550 is made of a material having light transmissibility. The inner cover body 550 in the present embodiment is colorless and transparent. The inner cover body 550 is made of, for example, a transparent resin material. The resin material is, for example, an acrylic resin such as polymethyl methacrylate, but is not limited thereto. The inner cover body 550 may be made of quartz glass.

[0105] The outer surface of the inner cover body 550 has a flat shape. Therefore, the light transmitted through the inner cover body 550 is less likely to be scattered, and a corresponding lighting effect can be obtained.

[0106] Unlike the first embodiment and the second embodiment, the holder 510 is not separable into the first member 510A, the second member 510B, and the third member 510C. That is, the holder 510 is an integral member that is not separated without being damaged.

[0107] The holder 510 includes a main board 511, two side plates 514, a first end plate 513, a second end plate 515, an overlapping portion 571, and a cover connection portion 572 (see FIGS. 14 and 15).

[0108] The main board 511 is rectangular when viewed in the front-rear direction. The two side plates 514 extend rearward from the left and right edges of the main board 511 respectively. Each side plate 514 is rectangular and vertically long when viewed in the left-right direction. The first end plate 513 extends rearward from the upper edge of the main board 511. The first end plate 513 is rectangular and horizontally long when viewed in the up-down direction. The second end plate 515 extends rearward from the lower edge of the main board 511. The first end plate 513 is rectangular and horizontally long when viewed in the up-down direction. The upper end of the left side plate 514 and the upper end of the right side plate 514 are respectively connected to the left and right ends of the first end plate 513, and the lower end of the left side plate 514 and the lower end of the right side plate 514 are respectively connected to the left and right ends of the second end plate 515. Thereby, the combination of the two side plates 514, the first end plate 513, and the second end plate 515 forms a rectangular frame shape. The main board 511 has an opening 512. The opening 512 is rectangular when viewed in the front-rear direction. The main board 511 has a boss 519 protruding rearward from its rear side surface. The boss 519 is cylindrical, and there is a fixing hole 520 inside the boss 519. In the embodiment, the main board 511 has four bosses 519 and fixing holes 520 corresponding to each boss 519. Two bosses 519 are arranged side by side in the left-right direction at positions separated upward from the upper edge of the opening 512, and the other two bosses 519 are arranged side by side in the left-right direction at positions separated downward from the lower edge of the opening 512. The main board 511 has fixing holes 518 penetrating in the front-rear direction. The main board 511 has four fixing holes 518. The four fixing holes 518 are respectively located at the four corners of the main board 511.

[0109] The two overlapping portions 571 each extend rearward from the rear end edges of the two side plates 514. The two overlapping portions 571 are arranged side by side in the left-right direction. The two overlapping portions 571 have a substantially symmetric shape with respect to a virtual plane that is located between them and orthogonal to the left-right direction. Each overlapping portion 571 is in the shape of a flat plate having a thickness in the left-right direction and is long in the up-down direction when viewed in the left-right direction. The outer surface of the overlapping portion 571 is located inside the outer surface of the side plate 514. The cover connection portion 572 includes a first connection portion 573 and a second connection portion 574. Each of the first connection portion 573 and the second connection portion 574 includes a first rib 575 and a second rib 576. The first rib 575 of the first connection portion 573 and the first rib 575 of the second connection portion 574 are arranged one above the other in the up-down direction, and the first rib 575 of the first connection portion 573 is located above. The second rib 576 of the first connection portion 573 and the second rib 576 of the second connection portion 574 are arranged one above the other in the up-down direction, and the second rib 576 of the first connection portion 573 is located above. The first rib 575 projects inward in the left-right direction from a part of the rear end edge of the overlapping portion 571. The first rib 575 has a thickness in the front-rear direction and is long in the up-down direction. The second rib 576 projects inward in the left-right direction from the inner surface in the left-right direction of the overlapping portion 571. The second rib 576 has a thickness in the up-down direction and is long in the front-rear direction. The first rib 575 and the second rib 576 in the first connection portion 573 are arranged with a gap in the front-rear direction and without a gap in the up-down direction. In the second connection portion 574, the first rib 575 and the second rib 576 are arranged with a gap in the front-rear direction and also with a gap in the up-down direction.

[0110] The holder 510 is produced, for example, by injection molding a resin material. Note that the material and production method of the holder 510 are not limited to the above.

[0111] In the present embodiment, each of the outer cover body 530 and the inner cover body 550 is fixed to the holder 510 with a fixture, so that the holder 510 holds the outer cover body 530 and the inner cover body 550.

[0112] As shown in FIGS. 13 and 16, in the cover body 5, the support portion 556 of the inner cover body 550 overlaps with the rear surface of the main board 511 of the holding body 510 around the opening 512. The main portion 551 of the inner cover body 550 is disposed forward of the main board 511 through the opening 512. Each of the four bosses 519 fits into the corresponding fixing recess 561 and fixing rib 562. That is, the four bosses 519 are respectively fitted into the corresponding four fixing recesses 561 and fixing ribs 562. The rear surface of the boss 519 and the rear surface of the fixing rib 562 are flush. In this state, a screw 581, which is a fixing tool, is fitted into the fixing hole 520 inside each boss 519. The head 582 of this screw 581 is in contact with the rear surface of the boss 519. Thereby, the inner cover body 550 is held by the holding body 510.

[0113] The main portion 540 of the outer cover body 530 is in front of the main board 511 of the holding body 510 and the main portion 551 of the inner cover body 550, the main portion 540 and the main board 511 are separated in the front-rear direction, and the main body board 534 and the main portion 551 are separated in the front-rear direction. The rear surfaces of the four legs 544 of the outer cover body 530 are respectively in contact with the four corners on the front surface of the main board 511 of the holding body 510. The four fixing holes 518 in the main board 511 and the four fixing holes 545 in the outer cover body 530 are respectively aligned. A screw 583, which is a fixing tool, is fitted into each fixing hole 518 from the rear side of the main board 511, and this screw 583 is further fitted into the fixing hole 545. Thereby, the outer cover body 530 is held by the holding body 510.

[0114] The cover body 5 configured as described above includes a cover main body 50 including the outer cover body 530, the main board 511, the two side plates 514, the first end plate 513, the second end plate 515, and the inner cover body 550, and two overlapping portions 571 extending rearward from the right and left edge portions of the cover main body 50, respectively.

[0115] (3) Lighting fixture As shown in FIGS. 17 and 18, in the cover body 5, the holder 510 is attached to the lighting unit 2 with the screw 9 removed. The first rib 522 of the second connection part 521 passes between the locking parts 270 and 271 of the lighting unit 2. Each overlapping part 571 is inserted into the drainage space S2 of the side wall 20 and slid downward, thereby being attached to the lighting unit 2. As a result, the cover body 5 is attached to the lighting unit 2. In this state, by attaching the screw 9 to the screw hole 232 of the recess 231 on the upper side of the second side wall 23 of the lighting unit 2, the head 90 of the screw 9 is positioned above the overlapping part 571 on the right side of the cover body 5. As a result, the cover body 5 is attached to the lighting unit 2 in a state where upward movement is restricted.

[0116] The cover body 5 is attached to the lighting unit 2 so as to cover the light source unit 4 and the support member 3 from the front side. The cover main body 50 is located in front of the support member 3. The light source unit 4 of the lighting unit 2 is disposed inside the main part 551 of the inner cover body 550. Each of the two overlapping parts 571 is disposed inside the lighting unit 2. Each overlapping part 571 is disposed along the outer wall part 22 of the lighting unit 2 so as to overlap the inner surface of this outer wall part 22. The fixing piece 538 closes the front opening of the drainage space S2.

[0117] The first connection part 573 is connected to the first locking part 270 of the lighting unit 2, and the second connection part 574 is connected to the second locking part 271 of the lighting unit 2. That is, in the first connection part 573, the first rib 575 and the second rib 576 sandwich the rib 272 of the first locking part 270. In the second connection part 574, the first rib 575 and the second rib 576 sandwich the rib 272 of the second locking part 271. Further, the second rib 576 of the second connection part 574 is supported from below by the rib 273 of the second locking part 271 of the lighting unit 2.

[0118] In the lighting fixture 1 of the present embodiment, when the light source unit 4 emits light, the light sequentially passes through the inner cover body 550 and the outer cover body 530 and is emitted to the outside of the lighting fixture 1. At this time, each of the inner cover body 550 and the outer cover body 530 controls a combination (lighting effect) such as the intensity of the light emitted to the outside of the lighting fixture 1, the distribution of the light intensity, the direction of the light, the degree of light scattering, and the color of the light. In the present embodiment, since the inner cover body 550 is colorless and transparent and its outer surface is flat, there is no color change in the difference in light transmission through the inner cover body 550, and it is difficult to be scattered. The light further passes through the openings 546, 547, 548, 549 of the outer cover body 530. Further, the inner cover body 550 can be easily visually recognized from the outside through the openings 546, 547, 548, 549 of the outer cover body 530.

[0119] Also in the present embodiment, if the configuration of one or both of the inner cover body 550 and the outer cover body 530 in the cover body 5 is changed, the lighting effect can be changed. Further, by changing the configuration of the outer cover body 530, the appearance of the lighting fixture 1 can also be changed. For example, in the present embodiment, only the inner cover body 550 can be changed to a milky white inner cover body 550, a colored inner cover body 550 with a color other than white, or an inner cover body 550 having unevenness on the outer surface. Further, for example, in the present embodiment, only the outer cover body 530 can be changed to an outer cover body 530 having light transmissibility as in the case of the first embodiment, or an inner cover body 550 having slit-shaped openings as in the case of the second embodiment. Therefore, it is easy to change the specifications of the cover body 5. Further, it is possible to make parts common among cover bodies 5 having different specifications. For example, among cover bodies 5 having different specifications, one or two of the holder 510, the inner cover body 550, and the outer cover body 530 can be made common. Therefore, the productivity of a plurality of types of cover bodies 5 having different specifications can be increased.

[0120] Further, in the present embodiment, the main board 511 in the holder 510 is disposed in front of the support member 3 with a space therebetween. Further, the two side plates 514, the first end plate 513, and the second end plate 515 in the holder 510 are disposed between the main board 511 and the support member 3 on the outer periphery of the main board 511. Therefore, the holder 510 makes it difficult to visually recognize the support member 3 from the outside of the lighting fixture 1. Thereby, the appearance of the lighting fixture 1 is improved.

[0121] Also, in the lighting fixture 1 of the present embodiment, the lighting unit 2 has two side walls 20 sandwiching the accommodation space S1, and each side wall 20 includes an inner wall portion 21 facing the accommodation space S1 and an outer wall portion 22 located outside the inner wall portion 21. Further, the cover body 5 has a cover main body 50 located in front of the support member 3 and two overlapping portions 571 respectively extending from the cover main body 50 so as to overlap the inner surfaces of the outer wall portions 22 of the two side walls 20. Furthermore, the support member 3 includes a main body portion 30 closing the accommodation space S1 and two side wall portions 31 extending from the main body portion 30 so as to overlap the outer surfaces of the inner wall portions 21 of the two side walls 20 respectively.

[0122] Therefore, the lighting fixture 1 has a first water-stopping structure in which the outer wall portion 22 of the lighting unit 2 and the overlapping portion 571 of the cover body 5 overlap, and a second water-stopping structure in which the side wall portion 31 of the support member 3 and the inner wall portion 21 of the lighting unit 2 overlap. Therefore, it is possible to suppress water from entering from between the lighting unit 2 and the cover body 5 to the accommodation space S1 inside the lighting unit 2 by a two-stage water-stopping structure formed by a part of the configurations of the lighting unit 2, the cover body 5, and the support member 3. Therefore, in the lighting fixture 1 of the present embodiment, it is not necessary to use a packing having weather resistance, so that a decrease in appearance quality can be suppressed, and a waterproof function comparable to that when using a packing can be exhibited.

[0123] 5. Aspect The lighting fixture (1) according to the first aspect includes a lighting unit (2) and a cover body (5). The lighting unit (2) includes a light source unit (4) that emits light toward the outside of the lighting unit (2). The cover body (5) is fixed to the lighting unit (2) so as to face the light source unit (4). The cover body (5) includes an outer cover body (530) that allows light to pass through, an inner cover body (550) that is interposed between the outer cover body (530) and the light source unit (4) and allows light to pass through, and a holding body (510) that holds the outer cover body (530) and the inner cover body (550) and is fixed to the lighting unit (2).

[0124] According to this aspect, by replacing at least one of the inner cover body (550) and the outer cover body (530) in the cover body (5), the specifications of the cover body (5) can be changed, so it is easy to change the specifications of the cover body (5) fixed to the lighting unit (2).

[0125] In the second aspect, in the first aspect, the outer cover body (530) has light transmissivity.

[0126] According to this aspect, a lighting effect corresponding to the outer cover body (530) can be obtained.

[0127] In the third aspect, in the second aspect, the outer cover body (530) is colored.

[0128] According to this aspect, a lighting effect corresponding to the outer cover body (530) can be obtained.

[0129] In the fourth aspect, in any one of the first to third aspects, the outer cover body (530) has an opening that allows light to pass through.

[0130] According to this aspect, a lighting effect corresponding to the outer cover body (530) can be obtained.

[0131] In the fifth aspect, in any one of the first to fourth aspects, the inner cover body (550) has light transmissivity.

[0132] According to this aspect, an illumination effect corresponding to the inner cover body (550) can be obtained.

[0133] In the sixth aspect, in the fifth aspect, the inner cover body (550) is milky white.

[0134] According to this aspect, an illumination effect corresponding to the inner cover body (550) can be obtained.

[0135] In the seventh aspect, in the fifth or sixth aspect, the outer surface of the inner cover body (550) has a corrugated shape.

[0136] According to this aspect, an illumination effect corresponding to the inner cover body (550) can be obtained.

[0137] In the eighth aspect, in any one of the first to seventh aspects, the holder (510) includes a first member (510A), a second member (510B) fixed to the first member (510A), and a third member (510C) fixed to the first member (510A). The holder (510) sandwiches a part of the outer cover body (530) and a part of the inner cover body (550) between the first member (510A) and the second member (510B), and sandwiches a different part of the outer cover body (530) and a different part of the inner cover body (550) between the first member (510A) and the third member (510C), thereby holding the outer cover body (530) and the inner cover body (550).

[0138] In the ninth aspect, in any one of the first to seventh aspects, each of the outer cover body (530) and the inner cover body (550) is fixed to the holder (510) by a fixture, so that the holder (510) holds the outer cover body (530) and the inner cover body (550).

Explanation of Reference Numerals

[0139] 1 Lighting fixture 2 Lighting unit 4 Light source unit 5 Cover body 510 Holder 510A First member 510B Second member 510C Third member 530 Outer cover body 550 Inner cover body

Claims

1. An illumination device comprising an illumination unit and a cover body, wherein the illumination unit includes a light source unit that emits light toward the outside of the illumination unit, the cover body is fixed to the illumination unit so as to face the light source unit, the cover body includes an outer cover body that allows the light to pass through, an inner cover body that is interposed between the outer cover body and the light source unit and allows the light to pass through, and a holding body that holds the outer cover body and the inner cover body and is fixed to the illumination unit. Illumination device.

2. The illumination device according to claim 1, wherein the outer cover body has light transmissivity. Illumination device according to claim 1.

3. The illumination device according to claim 2, wherein the outer cover body is colored. Illumination device according to claim 2.

4. The illumination device according to claim 1, wherein the outer cover body has an opening through which the light passes. Illumination device according to claim 1.

5. The illumination device according to claim 1, wherein the inner cover body has light transmissivity. Illumination device according to claim 1.

6. The illumination device according to claim 5, wherein the inner cover body is milky white. Illumination device according to claim 5.

7. The illumination device according to claim 5 or 6, wherein the outer surface of the inner cover body has a corrugated shape. Illumination device according to claim 5 or 6.

8. The holding body includes a first member, a second member fixed to the first member, and a third member fixed to the first member, and the holding body holds the outer cover body and the inner cover body by sandwiching a part of the outer cover body and a part of the inner cover body between the first member and the second member, and sandwiching a different part of the outer cover body and a different part of the inner cover body between the first member and the third member. Illumination device according to claim 1.

9. The illumination device according to claim 1, wherein the holding body holds the outer cover body and the inner cover body by fixing each of the outer cover body and the inner cover body to the holding body with a fixture. Illumination device according to claim 1.

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