Lighting fixtures

Abstract

To provide a lighting fixture that can prevent the reflective material from falling off. [Solution] The lighting fixture (1) is inserted into a frame (4) and includes a reflective member (5) that reflects light emitted from a luminaire unit (2), and a locking member (6) that locks the reflective member (5). The reflective member (5) includes a first reflective member (51) and a second reflective member (52) having a lockable portion (521) on its peripheral wall portion (522) that is locked by the locking portion (61).

Description

Technical Field

[0001] The present disclosure relates to lighting fixtures.

Background Art

[0002] Conventionally, in a halogen lamp formed with a slit for preventing detachment, a reflector (reflective member) with an improved shape of a neck portion for sealing a halogen bulb has been disclosed (Patent Document 1). In this reflector, slits as a mechanism for preventing detachment of the halogen lamp are formed on the front side and the back side of the neck portion. An engaging member that engages with this slit is provided on the lighting fixture side, and a mechanism is formed such that the halogen lamp does not fall off when the slit and the engaging member engage with each other.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above-described conventional technology, the detailed structure of the engaging member that engages with the slit is not described, and the structural principle that the halogen lamp does not fall off is unclear.

[0005] One aspect of the present disclosure aims to provide a lighting fixture capable of preventing detachment of a reflective member.

Means for Solving the Problems

[0006] To solve the aforementioned problems, a lighting fixture according to one aspect of the present disclosure comprises a frame, a reflective member inserted into the frame and reflecting light emitted from a light source, and a locking member connected to the frame and having a locking portion for locking the reflective member. The reflective member includes a first reflective member and a second reflective member connected to the first reflective member from the side opposite to the side where the light source is located, and having a locking portion on its peripheral wall that is locked by the locking portion. [Effects of the Invention]

[0007] According to one aspect of this disclosure, it is possible to provide a lighting fixture that can prevent the reflective member from falling off. [Brief explanation of the drawing]

[0008] [Figure 1] This is a bottom view showing a lighting fixture according to Embodiment 1. [Figure 2] This is a cross-sectional view of the lighting fixture shown in Figure 1, taken along the line AA. [Figure 3] Figure 2 is an exploded view showing the lighting fixture. [Figure 4] This is a magnified view of the area enclosed by the dashed line shown in Figure 2. [Figure 5] This is a cross-sectional view showing a lighting fixture according to Embodiment 2. [Figure 6] Figure 5 is an exploded view showing the lighting fixture. [Figure 7] This is a magnified view of the area enclosed by the dashed line shown in Figure 5. [Modes for carrying out the invention]

[0009] [Embodiment 1] Hereinafter, an embodiment of this disclosure will be described with reference to the drawings. Note that the following description is an example of a lighting fixture relating to this disclosure, and the technical scope of this disclosure is not limited to the illustrated example.

[0010] [Overview of lighting fixtures] First, an overview of the lighting fixture 1 according to this embodiment will be described with reference to Figures 1 to 3. Figure 1 is a bottom view showing the lighting fixture 1 according to this embodiment. Figure 2 is a cross-sectional view of the lighting fixture 1 shown in Figure 1, taken along the line AA. Figure 3 is an exploded view showing the lighting fixture 1 shown in Figure 2.

[0011] Lighting fixture 1 is a downlight that is installed embedded in the ceiling, for example. Lighting fixture 1 is a wall washer type downlight that primarily directs light towards the wall surface to brightly illuminate it. In the example shown in Figure 2, the installation state of lighting fixture 1 is shown when a wall surface (not shown) is located to the right of lighting fixture 1 in Figure 2. Lighting fixture 1 primarily directs light in the direction of arrow A in Figure 2 to brightly illuminate the wall surface.

[0012] As shown in Figures 1 to 3, the lighting fixture 1 includes a reflective member 5 that reflects light emitted from the luminaire unit (light source) 2, and a locking member 6 that locks the reflective member 5. The reflective member 5 includes a first reflective member 51 and a second reflective member 52 connected to the side opposite to the side where the luminaire unit 2 is located relative to the first reflective member 51. The second reflective member 52 has a locking portion 521 on its peripheral wall portion 522 that is locked by the locking member 6.

[0013] In the lighting fixture 1, the second reflective member 52 is connected to the first reflective member 51 and is also locked in place by a locking member 6. Therefore, even if the connection between the first reflective member 51 and the second reflective member 52 is damaged (missing), the second reflective member 52 will catch on the locking member 6, preventing it from falling.

[0014] In the following description, in the state where the lighting fixture 1 is installed on the ceiling, the upper side in the vertical direction (upward in the vertical direction) may be referred to as the upper side (upper part), and the lower side in the vertical direction may be referred to as the lower side (lower part). In other words, in the state where the lighting fixture 1 is installed on the ceiling, the side where the lamp unit 2 is located with respect to the first reflecting member 51 may be referred to as the upper side (upper part), and the side where the second reflecting member 52 is connected to the first reflecting member 51 may be referred to as the lower side (lower part). Further, the direction orthogonal to the vertical direction (horizontal direction) may be referred to as the radial direction or the left - right direction.

[0015] [Configuration of Lighting Fixture] Next, referring to FIGS. 1 to 4, the configuration of the lighting fixture 1 will be described. FIG. 4 is an enlarged view of the portion P enclosed by the broken line shown in FIG. 2. As shown in FIGS. 1 to 4, the lighting fixture 1 mainly includes a lamp unit 2, a support member (column) 3, a frame body 4, a reflecting member 5, and a locking member 6.

[0016] (Lamp Unit) The lamp unit 2 is a light source that emits light. The lamp unit 2 mainly includes an LED (Light Emitting Diode) module 21, a module holder 22, a module reflector 23, a glass lens 24, a heat sink bottom plate 25, a heat sink 26, and a power cord 27.

[0017] In the lamp unit 2, the LED module 21 is held by the module holder 22 on the lower surface of the heat sink bottom plate 25. An insulating sheet (not shown) may be provided between the LED module 21 and the heat sink bottom plate 25.

[0018] A glass lens 24 is disposed below the LED module 21. The glass lens 24 is a diffusing member that diffuses the light from the LED module 21. The glass lens 24 is attached to an opening of a module reflector 23 provided at the lower part of the lamp unit 2 and is provided so as to cover the light-emitting direction side of the LED module 21. The glass lens 24 is circular in plan view and is formed in a dome shape protruding downward. The light from the LED module 21 passes through the glass lens 24 and is emitted from the lower part of the lamp unit 2.

[0019] The heat sink 26 is attached to the upper surface of the heat sink bottom plate 25. The heat sink bottom plate 25 and the heat sink 26 are circular in plan view and are made of a material with high thermal conductivity in order to dissipate the heat generated by the LED module 21. The heat sink bottom plate 25 and the heat sink 26 can be made of a metal such as aluminum, for example. However, the heat sink bottom plate 25 and the heat sink 26 may be made of a metal material other than aluminum, a resin material, etc., or a combination thereof, as long as the desired thermal conductivity and strength can be ensured.

[0020] The power cord 27 is a wiring for supplying power to the LED module 21. The LED module 21 and the power cord 27 are electrically connected. Also, the power cord 27 is connected to an external power source not shown. Note that the lamp unit 2 may further include electrical components such as a power circuit or a dimming circuit. For example, the power circuit may include a circuit that converts an alternating current supplied from an external power source into a direct current. Also, the dimming circuit may include a circuit that controls the amplitude or phase of the current to adjust the amount of current supplied to the LED module 21.

[0021] (Support member) The support member 3 is attached to the lower surface of the luminaire unit 2 and is a support column that supports each part of the lighting fixture 1. The support member 3 is made of, for example, metal. The support member 3 includes an annular base 31 with an opening for the glass lens 24 of the luminaire unit 2 to pass through, and a pair of extensions 32 that extend downward (project) from the outer edge of the base 31. The pair of extensions 32 are provided so as to face each other with the base 31 in between.

[0022] The base portion 31 surrounds the glass lens 24 and is attached to the lower surface of the luminaire unit 2. In this embodiment, the base portion 31 is screwed to the lower surface of the luminaire unit 2 by screws (fastening members) B1. The first reflective member 51 is also screwed to the base portion 31 by screws B2.

[0023] A pair of extensions 32 extending downward from the outer edge of the base 31 include extensions 321 and 322 that protrude on both sides in the width direction at the lower part of each extension 32. The frame 4 is screwed to these extensions 321 and 322 with screws B3 and B5. In addition, a mounting spring 11 is screwed to the center of the pair of extensions 32 with screws B4. The mounting spring 11 is a leaf spring (elastic member) for attaching the lighting fixture 1 to a mounting surface such as a ceiling. The pair of mounting springs 11 are mounted in positions that face each other with the support member 3 in between when viewed from above.

[0024] (Frame) The frame 4 is a cylindrical member into which the reflective member 5 is inserted. The frame 4 is made of, for example, die-cast material. The frame 4 includes an annular portion 41 having an opening and a substantially cylindrical peripheral wall portion 42 extending upward from the upper surface of the annular portion 41. The annular portion 41 is provided projecting radially outward from the lower part of the peripheral wall portion 42.

[0025] The upper surface of the annular portion 41 is designed to contact the ceiling when the lighting fixture 1 is mounted on the ceiling. For example, when the lighting fixture 1 is installed outdoors, such as under an eaves, an annular packing may be added between the annular portion 41 and the ceiling. This can improve the waterproofness of the lighting fixture 1.

[0026] The peripheral wall portion 42 is fastened to the extension portion 32 of the support member 3 with screws B3. In addition, the locking member 6 is fastened to the outer circumferential surface of the peripheral wall portion 42 with screws B5.

[0027] (Reflective material) The reflective member 5 is a reflector (reflector plate) inserted into the frame 4 that reflects the light emitted by the luminaire unit 2. The reflective member 5 is made of a resin that has been treated with, for example, white paint, silver paint, or plating, in order to efficiently reflect the light emitted by the luminaire unit 2.

[0028] The reflective member 5 includes a first reflective member 51 and a second reflective member 52 connected to the lower part of the first reflective member 51. The reflective member 5 is configured such that the light emitted from the lighting unit 2 is directed primarily toward the wall surface.

[0029] A panel 12 is provided between the first reflective member 51 and the second reflective member 52. The panel 12 is a diffuser plate that diffuses the light emitted by the luminaire unit 2 or the light reflected by the first reflective member 51. The panel 12 is made of, for example, tempered glass. When viewed from below, the panel 12 is offset from the center C of the lower opening of the second reflective member 52 (see Figure 1). The panel 12 is also provided at an angle toward the wall surface that emits light, so as to partition the inside of the reflective member 5 (see Figure 2).

[0030] The first reflective member 51 has a shape in which the lower side of a cylinder is cut at an angle. As a result, the vertical dimension of the reflective surface 51B on the other radial side (left side of Figure 2) is relatively larger than that of the reflective surface 51A on one radial side (right side of Figure 2). In addition, the inner diameter of the first reflective member 51 gradually decreases from the top to the bottom. As a result, the first reflective member 51 efficiently reflects the light emitted by the luminaire unit 2 toward the panel 12 side (lower right side of Figure 2) by the reflective surface 51B.

[0031] The second reflective member 52 has a shape in which the upper side of a hollow cone is cut at an angle. Therefore, the vertical dimension of the reflective surface 52A on one radial side (right side of Figure 2) is relatively larger than that of the reflective surface 52B on the other radial side (left side of Figure 2). In addition, the inner diameter of the second reflective member 52 gradually increases from the top to the bottom. Light diffused by the panel 12 passes through the second reflective member 52 and is irradiated onto the wall surface, and a portion of it is reflected by the reflective surface 52A of the second reflective member 52 and irradiated onto the floor surface.

[0032] The inclination angle of the lower part of the first reflective member 51 and the inclination angle of the upper part of the second reflective member 52 are approximately the same. Also, the inner diameter of the lower part of the first reflective member 51 and the inner diameter of the upper part of the second reflective member 52 are approximately the same. The lower part of the first reflective member 51 and the upper part of the second reflective member 52 are fastened together with screws B6, thereby connecting the lower part of the first reflective member 51 and the upper part of the second reflective member 52.

[0033] Furthermore, the peripheral wall portion 522 of the second reflective member 52 is provided with a locking portion 521 that is locked by the locking member 6. The locking portion 521 is provided, for example, protruding radially outward from the outer peripheral surface of the peripheral wall portion 522 of the second reflective member 52. In this embodiment, the locking portion 521 is provided with a flange that is substantially parallel to the horizontal direction when the lighting fixture 1 is installed on the ceiling, and has an arc shape in plan view, along the outer peripheral surface of the peripheral wall portion 522 of the second reflective member 52.

[0034] Panel 12 is provided at the connection point between the first reflective member 51 and the second reflective member 52. By providing panel 12, areas of high brightness are less likely to occur in the second reflective member 52, thereby reducing glare. Panel 12 is supported on its outer circumference by the reflective member 5 via an annular packing 13. The packing 13 is made of, for example, white silicone rubber. The space between the reflective member 5 and panel 12 is sealed by the packing 13.

[0035] (locking member) The locking member 6 is a fall prevention member that locks the second reflective member 52 of the two reflective members 52 that make up the reflective member 5, along with the first reflective member 51. In the lighting fixture 1, both the first reflective member 51 and the second reflective member 52 are made of resin. The first reflective member 51 and the second reflective member 52 are fastened together at two points by screws B6. The screw fastening portion (connection portion) between the resin first reflective member 51 and the resin second reflective member 52 is susceptible to damage due to external force or deterioration of the resin over time, and if the screw fastening portion is damaged, the second reflective member 52 may fall off.

[0036] Therefore, the lighting fixture 1 is equipped with a locking member 6, and by locking the second reflective member 52 with the locking member 6, even if the screw fastening portion between the first reflective member 51 and the second reflective member 52 is damaged, the second reflective member 52 will not fall off.

[0037] The locking member 6 is made of, for example, metal. The locking member 6 includes a locking portion 61 that locks the second reflective member 52, and a pair of extensions 62 that extend downward from the locking portion 61.

[0038] The locking portion 61 is positioned below the locked portion 521 of the second reflective member 52. As a result, the locking portion 61 supports the locked portion 521 of the second reflective member 52 from below, effectively preventing the second reflective member 52 from falling downwards.

[0039] In this embodiment, the locking portion 61 has an arc shape when viewed from above. This allows the arc-shaped locking portion 61 to be fitted onto the peripheral wall portion 522 of the second reflective member 52 from the side. Therefore, the locking member 6 can be easily attached to the second reflective member 52, and the second reflective member 52 can be locked by the locking member 6.

[0040] A pair of extensions 62 extending downward from near both ends of the locking portion 61 are attached to the frame 4. In this embodiment, the pair of extensions 62 are screwed to the outer circumferential surface (circumferential surface) of the peripheral wall portion 42 of the frame 4 with screws B5. In this way, by screwing the locking member 6 to the outer or inner circumferential surface of the peripheral wall portion 42 of the frame 4, the locking member 6 can be fixed to the frame 4 with screws B5 while suppressing an increase in the height (vertical direction) dimension of the lighting fixture 1.

[0041] (Effects of lighting fixtures) As described above, the lighting fixture 1 according to this embodiment comprises a frame 4, a reflective member 5 inserted into the frame 4 and reflecting light emitted by the luminaire unit 2, and a locking member 6 connected to the frame 4 and having a locking portion 61 for locking the reflective member 5. The reflective member 5 includes a first reflective member 51 and a second reflective member 52 connected to the first reflective member 51 on the side opposite to the luminaire unit 2 and having a locking portion 521 on its peripheral wall portion 522 that is locked by the locking portion 61.

[0042] In the lighting fixture 1, the second reflective member 52 is connected to the first reflective member 51 and secured by a locking member 6. Therefore, even if the connection between the first reflective member 51 and the second reflective member 52 is released, the second reflective member 52 will catch on the locking member 6, preventing it from falling off. Accordingly, according to this embodiment, it is possible to realize a lighting fixture 1 that can prevent the reflective member 5 from falling off.

[0043] In the above explanation, an example configuration was described in which both the locking portion 521 of the second reflective member 52 and the locking portion 61 of the locking member 6 are arc-shaped in plan view. However, the locking portion 521 and the locking portion 61 are not limited to an arc shape, and any configuration that allows the locking portion 61 to lock onto the locking portion 521 is acceptable. For example, the locking portion 521 may be a plurality of protrusions provided on the peripheral wall portion 522 of the second reflective member 52. Also, the locking portion 61 may be configured to lock onto these protrusions.

[0044] [Embodiment 2] Other embodiments of this disclosure are described below. For the sake of convenience, components having the same function as those described in the above embodiments are denoted by the same reference numerals, and their descriptions are not repeated.

[0045] [Lighting fixture configuration] Figure 5 is a cross-sectional view showing the lighting fixture 10 according to this embodiment. Figure 6 is an exploded view showing the lighting fixture 10 shown in Figure 5. Figure 7 is an enlarged view of the dashed-line-enclosed portion Q shown in Figure 5.

[0046] As shown in Figures 5 to 7, the lighting fixture 1 mainly comprises a luminaire unit 2A, a support member (luminaire spacer) 3A, a frame 4, a reflector 5, and a locking member 6A. The lighting fixture 10 mainly differs from the aforementioned lighting fixture 1 in that the locking member 6A is not screwed to the frame 4A.

[0047] (Lighting unit) The lighting unit 2A mainly includes an LED (Light Emitting Diode) module 21, a module holder (socket) 22, a module reflector 23, and a heat sink (body) 26.

[0048] In the lighting unit 2A, the LED module 21 is positioned on the underside of the heatsink 26 via an insulating sheet 28 and held by a module holder 22. The module holder 22 is screwed to the underside of the heatsink 26 by screws B7. The module reflector 23 is supported by a support member 3A that covers the bottom of the lighting unit 2A and reflects light from the LED module 21, which is emitted from the bottom of the lighting unit 2A.

[0049] (Support member) The support member 3A is a luminaire spacer that supports each part of the lighting fixture 10. The support member 3A is made of, for example, resin. The support member 3A is attached so as to cover the lower part of the luminaire unit 2A. The support member 3A has an opening below the module reflector 23 housed inside.

[0050] In this embodiment, the support member 3A is screwed to the lower surface of the heat sink 26 with screws B8. The first reflective member 51 is also screwed to the support member 3A with screws B2.

[0051] (Frame) The frame 4A is a cylindrical member into which the reflective member 5 is inserted. The frame 4A is made of, for example, resin. In this embodiment, the support member 3A is attached to the frame 4A so as to cover the upper part of the peripheral wall portion 42 of the frame 4A. Specifically, the lower part of the support member 3A and the lower part of the frame 4A are connected by sandwiching the mounting spring 11 between the support member 3A and the frame 4A and fastening it with screws B9. The mounting spring 11 extends to the outside of the frame 4A, passing through the connection portion between the support member 3A and the frame 4A.

[0052] At the connection point between the support member 3A and the frame 4A, the lower part of the support member 3A is provided with a plurality of protrusions 34 projecting downward. Furthermore, the upper part of the frame 4A (peripheral wall portion 42) is provided with a plurality of recesses 43 into which the protrusions 34 can be inserted. The engagement of these protrusions 34 and recesses 43 positions the support member 3A and the frame 4A.

[0053] (locking member) The locking member 6A is a fall prevention member that locks the reflective member 5. The locking member 6A includes a locking portion 61 that locks the locked portion 521 of the second reflective member 52, an extension portion 63 that extends upward (projects) from the locking portion 61, and a connecting portion 64 that extends radially outward from the upper part of the extension portion 63.

[0054] In the lighting fixture 10, a locking member 6A is positioned inside the frame 4A. This locking member 6A is not screwed to the frame 4A, but is held in place with a connecting portion 64 sandwiched between the support member 3A and the frame 4A. Therefore, the lighting fixture 10 further has a positioning mechanism to prevent the locking member 6A from shifting position.

[0055] For example, the locking member 6A has a first engagement groove 611 at the end of the locking portion 61 that faces the peripheral wall portion 522 of the second reflective member 52. This first engagement groove 611 is capable of engaging with an engagement projection 523 provided on the peripheral wall portion 522 of the second reflective member 52. By engaging the first engagement groove 611 with the engagement projection 523, the locking member 6A is positioned relative to the second reflective member 52.

[0056] Furthermore, the locking member 6A has a second engagement groove (positioning portion) 641 at the end of the connecting portion 64 that faces the protrusion 34 of the support member 3A. This second engagement groove 641 can engage with the protrusion 34 of the support member 3A from the side. In addition, the locking member 6A has a positioning hole (positioning portion) 642 formed through the connecting portion 64 in the vertical direction. This positioning hole 642 allows a downwardly protruding positioning pin 35, which is provided at the lower part of the support member 3A, to be inserted. When the second engagement groove 641 engages with the protrusion 34 and the positioning pin 35 is inserted into the positioning hole 642, the locking member 6A is positioned relative to the second reflective member 52.

[0057] In this way, by adopting a structure in which the locking member 6A is sandwiched between the support member 3A having a protrusion 34 and the frame 4A having a recess 43, the number of parts in the lighting fixture 10 can be reduced compared to when the locking member 6A is fixed using fastening members such as screws.

[0058] In the above description, an example configuration was described in which the protrusion 34 and positioning pin 35 for positioning the locking member 6A are provided on the support member 3A side. However, the protrusion 34 and positioning pin 35 may also be provided on the frame 4A side.

[0059] [Effects and Effects of Lighting Fixtures] As described above, in the lighting fixture 10 according to this embodiment, the locking member 6A is housed inside the frame 4A and is sandwiched between the connection portion of the support member 3A and the frame 4A.

[0060] In the lighting fixture 10, the locking member 6A can be attached to the frame 4 without using fastening members such as screws. Therefore, according to this embodiment, the number of parts in the lighting fixture 10 can be reduced. In addition, since the locking member 6A is housed inside the frame 4A in the lighting fixture 10, damage to the locking member 6A due to external force can be prevented.

[0061] 〔summary〕 A lighting fixture according to Embodiment 1 of the present disclosure comprises a frame, a reflective member inserted into the frame and reflecting light emitted from a light source, and a locking member connected to the frame and having a locking portion for locking the reflective member, wherein the reflective member includes a first reflective member and a second reflective member connected to the first reflective member from the side opposite to the side where the light source is located relative to the first reflective member and having a locking portion on its peripheral wall that is locked by the locking portion.

[0062] In the above configuration, the second reflective member is connected to the first reflective member and is also locked in place by a locking member. Therefore, even if the connection between the first and second reflective members is released, the second reflective member will catch on the locking member, preventing it from falling. Thus, the above configuration prevents the reflective members from falling off.

[0063] In the lighting fixture according to Embodiment 2 of the present disclosure, in Embodiment 1, the locking portion is provided so as to protrude radially outward from the peripheral wall portion of the second reflecting member, and the locking portion may be positioned on the side opposite to the side on which the light source is located relative to the locking portion.

[0064] According to the above configuration, since the locking member supports the locked portion of the second reflective member from the side opposite to the light source, the second reflective member can be effectively prevented from falling.

[0065] In the lighting fixture according to aspect 3 of this disclosure, in aspect 1 or 2, the locking portion may have an arc shape in plan view.

[0066] In the above configuration, for example, an arc-shaped locking portion can be fitted from the side onto the peripheral wall portion of the second reflective member, which is provided with a locking portion. Therefore, according to the above configuration, the locking member can be easily attached to the second reflective member, and the second reflective member can be locked by the locking member.

[0067] In the lighting fixture according to Embodiment 4 of this disclosure, in any of Embodiments 1 to 3, the locking member may be made of metal.

[0068] According to the above configuration, locking members can be easily manufactured by processing metal, and the manufacturing cost of locking members can be reduced.

[0069] In the lighting fixture according to aspect 5 of this disclosure, in any of aspects 1 to 4, the locking member may be screwed to the peripheral wall of the frame.

[0070] According to the above configuration, the locking member can be connected (fixed) to the frame with screws while suppressing an increase in the height (up and down) dimension of the lighting fixture.

[0071] In the lighting fixture according to embodiment 6 of the present disclosure, in any of embodiments 1 to 4, a support member is further provided which is connected to the frame from the side on which the light source is located relative to the first reflecting member, and the locking member may be sandwiched between the connection portion between the support member and the frame.

[0072] In the above configuration, the locking member can be attached to the frame without using fastening members such as screws. Therefore, the number of parts in the lighting fixture can be reduced according to the above configuration.

[0073] In the lighting fixture according to aspect 7 of the present disclosure, in aspect 6, the locking member may have a positioning portion for positioning the locking member with respect to the support member and the frame.

[0074] According to the above configuration, the locking member, which is sandwiched between the support member and the frame at the connection point, can be positioned so that it does not shift position.

[0075] This disclosure is not limited to the embodiments described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of this disclosure. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment. [Explanation of symbols]

[0076] 1. 10: Lighting fixtures 2, 2A: Lighting unit (light source) 3A: Support member 4, 4A: Frame 5: Reflective material 6, 6A: Locking member 42: Peripheral wall section of the frame 51: First reflective member 52: Second reflective member 61: Locking part 64: Connection part 521:Locked part 522: Peripheral wall portion (peripheral wall portion of the second reflective member) 641: Second engagement groove (positioning part) 642: Positioning hole (positioning part)

Claims

1. A cylindrical frame, A reflective member inserted into the frame reflects light emitted from a light source, A locking member having a locking portion that is connected to the frame and locks the reflective member, Equipped with, The lighting fixture includes a first reflective member and a second reflective member connected to the first reflective member from the side opposite to the side on which the light source is located relative to the first reflective member, and having a locking portion on its peripheral wall that is locked by the locking portion.

2. The locking portion is provided so as to protrude radially outward from the peripheral wall portion of the second reflective member. The lighting fixture according to claim 1, wherein the locking portion is arranged on the side opposite to the side on which the light source is located relative to the locked portion.

3. The lighting fixture according to claim 1 or 2, wherein the locking portion has an arc shape in plan view.

4. The lighting fixture according to claim 1 or 2, wherein the locking member is made of metal.

5. The lighting fixture according to claim 1 or 2, wherein the locking member is screwed to the peripheral wall portion of the frame.

6. The system further comprises a support member connected to the frame from the side on which the light source is located, The lighting fixture according to claim 1 or 2, wherein the locking member is sandwiched between the connection portion between the support member and the frame.

7. The lighting fixture according to claim 6, wherein the locking member has a positioning portion for positioning the locking member with respect to the support member and the frame.

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