Adapter and adapter assembly

Abstract

To provide an adapter and an adapter assembly capable of easily mounting a luminaire on a wall.SOLUTION: The adapter 10 includes a plate portion 1 and a support portion 2. The plate portion 1 has a first surface 11 and a second surface 12. First surface 11 faces luminaire 30. The second surface 12 is located opposite to the first surface 11. The support 2 is provided on the first surface 11. Support 2 supports luminaire 30. The plate part 1 is provided with a through hole 10H. The through-hole 10H reaches the second surface 12 from the first surface 11. On the first surface 11, the position of the first attachment 21 relative to the support 2 can be adjusted. The first mounting portion 21 is inserted into the through hole 10H.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to adapters and adapter assemblies. [Background technology]

[0002] Conventionally, there has been known an adapter that includes a fitting portion that supports a lighting fixture and an attachment portion that has bolt holes for attaching the adapter to a wall such as a ceiling (see, for example, Japanese Patent Application Laid-Open No. 2011-29141). A pair of attachment portions to which the adapter is attached are provided spaced apart on the ceiling. In Japanese Patent Application Laid-Open No. 2011-29141, the lighting fixture can be attached to the ceiling by placing each of the pair of adapters on the attachment portions. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-29141 Summary of the Invention [Problem to be solved by the invention]

[0004] However, depending on the lighting fixture, the distance between the pair of adapters that support the lighting fixture may differ. In such cases, when replacing an existing lighting fixture with a new lighting fixture, the adapters may not be able to accommodate the distance between the existing mounting points on the wall, making it difficult to mount the lighting fixture on the wall.

[0005] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide an adapter and an adapter assembly that allow a lighting fixture to be easily mounted on a wall. [Means for solving the problem]

[0006] An adapter according to the present disclosure includes a plate portion and a support portion. The plate portion has a first surface and a second surface. The first surface faces the lighting fixture. The second surface is located opposite the first surface. The support portion is provided on the first surface. The support portion supports the lighting fixture. The plate portion has a through hole. The through hole reaches from the first surface to the second surface. On the first surface, the relative position of the first mounting portion with respect to the support portion can be adjusted. The first mounting portion is inserted into the through hole.

[0007] An adapter assembly according to the present disclosure includes a plurality of the adapters described above. [Effects of the Invention]

[0008] Based on the above, it is possible to obtain an adapter and an adapter assembly that allow a lighting fixture to be easily mounted on a wall. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic perspective view of an adapter according to a first embodiment. [Figure 2] 1 is a schematic plan view of an adapter according to a first embodiment. [Figure 3] 1 is a schematic cross-sectional view showing a lighting fixture attached to a wall using an adapter assembly according to a first embodiment. [Figure 4] 5 is a schematic cross-sectional view showing a step of attaching a lighting fixture to a wall using the adapter assembly according to the first embodiment. FIG. [Figure 5] 5 is a schematic cross-sectional view showing a step of attaching a lighting fixture to a wall using the adapter assembly according to the first embodiment. FIG. [Figure 6] FIG. 10 is a schematic plan view of an adapter according to a second embodiment. [Figure 7] FIG. 11 is a schematic plan view of an adapter according to a third embodiment. [Figure 8] FIG. 10 is a schematic plan view of an adapter according to a fourth embodiment. [Figure 9]FIG. 10 is a partially enlarged schematic cross-sectional view showing a lighting fixture attached to a wall using an adapter assembly according to a fifth embodiment. [Figure 10] FIG. 13 is a schematic plan view of an adapter according to a sixth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present disclosure will be described. Unless otherwise specified, the same or corresponding parts in the following drawings will be denoted by the same reference numerals, and the description thereof will not be repeated.

[0011] Embodiment 1 <Adapter configuration> FIG. 1 is a schematic perspective view of an adapter 10 according to a first embodiment. FIG. 2 is a schematic plan view of the adapter 10 according to the first embodiment. The adapter 10 shown in FIGS. 1 and 2 is used when attaching a lighting fixture 30 to a wall 40, and mainly comprises a plate portion 1 and a support portion 2. Note that in this specification, the term "lighting fixture" may refer to a lighting fixture that includes a light source extending in one direction and a jig that holds the light source. The light source may be, for example, a fluorescent lamp, a light bulb, or an LED (Light Emitting Diode).

[0012] The plate portion 1 has a first surface 11 and a second surface 12. The first surface 11 is a surface that can face the lighting fixture 30 (see FIG. 3). The second surface 12 is a surface that is located opposite the first surface 11 in the z direction. The second surface 12 is a surface that can face the wall 40 (see FIG. 3). In other words, the first surface 11 and the second surface 12 are both end surfaces of the plate portion 1 in the thickness direction (z direction).

[0013] The directions along the first surface 11 are the x direction and the y direction. In a plan view of the first surface 11, the x direction is the longitudinal direction of the first surface 11. In a plan view of the first surface 11, the y direction is the lateral direction of the first surface 11. The z direction is the thickness direction of the plate portion 1. In other words, the z direction is a direction perpendicular to the first surface 11.

[0014] As shown in Fig. 2, the shape of the plate portion 1 is rectangular in a plan view of the first surface 11. The outer shape of the plate portion 1 may include a curve in a plan view of the first surface 11. For example, the shape of the plate portion 1 may be elliptical in a plan view of the first surface 11. The shape of the plate portion 1 may be polygonal, such as triangular or pentagonal, or may be L-shaped or T-shaped in a plan view of the first surface 11.

[0015] 2, the width w of first surface 11 in the x direction is, for example, 150 mm. The width w of first surface 11 in the x direction may be 100 mm or more, 150 mm or more, or 200 mm or more. The width w of first surface 11 in the x direction may be changed depending on the shape of lighting device 30.

[0016] As shown in FIG. 1 , the thickness t of the plate portion 1 in the z direction is, for example, 3 mm. The thickness t of the plate portion 1 in the z direction may be, for example, 10 mm or less, or may be 5 mm or less. In this way, when the lighting fixture 30 is attached to the wall 40 using the adapter 10, the gap formed between the lighting fixture 30 and the wall 40 is reduced. As a result, the aesthetic appearance of the lighting fixture 30 attached to the wall 40 is improved. The thickness t of the plate portion 1 in the z direction may be changed depending on the weight of the lighting fixture 30.

[0017] The material constituting the plate portion 1 may be a material having high rigidity, such as steel. In this way, when the lighting fixture 30 is attached to the wall 40 using the adapter 10, strain generated in the plate portion 1 due to the weight of the lighting fixture 30 is suppressed.

[0018] The support portion 2 is provided on the first surface 11. The support portion 2 extends in a direction (z direction) perpendicular to the first surface 11. The support portion 2 supports the lighting device 30.

[0019] 1, the support portion 2 may have an external thread. From a different perspective, the external thread is formed on the outer circumferential surface of the support portion 2. The support portion 2 can be coupled to, for example, coupling portion 30H of the lighting fixture 30 (see FIG. 5).

[0020] The standard of the male thread formed in the support portion 2 may be the same as the standard of the male thread formed in the first mounting portion 21 described below. Specifically, the nominal diameter, pitch, root diameter, effective diameter, and thread angle of the male thread formed in the support portion 2 may be the same as the nominal diameter, pitch, root diameter, effective diameter, and thread angle of the male thread formed in the first mounting portion 21, respectively.

[0021] The connecting portion 30H is provided on the lighting device 30. The connecting portion 30H may be, for example, a through-hole. The support portion 2 may be inserted into the connecting portion 30H, which is a through-hole. In this manner, the adapter 10 may support the lighting device 30. Note that the lighting device 30 may be supported on the adapter 10 by any method.

[0022] The support part 2 may be connected to the first surface 11 by any method. For example, the support part 2 may be connected to the first surface 11 by welding. For example, the support part 2 may be connected to the first surface 11 by being fitted into a recess provided in the first surface 11. The recess may be an internal thread. From a different perspective, an internal thread may be formed on the inner circumferential surface of the recess.

[0023] 1, the height h of support portion 2 in the z direction is, for example, 13 mm. The height h of support portion 2 in the z direction may be, for example, 5 mm or more, 10 mm or more, or 15 mm or more. The height h may be 50 mm or less, 40 mm or less, or 30 mm or less. The height h of support portion 2 in the z direction may be changed depending on the shape of lighting device 30.

[0024] 1 and 2, a through hole 10H is provided in the plate portion 1. The through hole 10H is formed so as to reach from the first surface 11 to the second surface 12. The first mounting portion 21 of the mounting portion 20 can be inserted into the through hole 10H (see FIG. 3).

[0025] As will be described later, the mounting portion 20 includes a first mounting portion 21 and a second mounting portion 22 (see FIG. 4). The first mounting portion 21 is, for example, a bolt. The second mounting portion 22 is provided on the wall 40. The second mounting portion 22 is, for example, an anchor driven into the wall 40. The bolt serving as the first mounting portion 21 can be inserted into the anchor serving as the second mounting portion 22. The adapter 10 may be mounted to the wall 40 by any method.

[0026] 1 and 2, a feature of adapter 10 according to the first embodiment is that the relative position of first mounting portion 21 with respect to support portion 2 can be adjusted on first surface 11. As shown in FIG. 2, in adapter 10 according to the first embodiment, through hole 10H extends along the direction in which plate portion 1 extends (x direction). First mounting portion 21 can be positioned within a range of region Q (see FIG. 2) in the x direction in which through hole 10H is formed. In other words, distance L (see FIG. 3) from support portion 2 to first mounting portion 21 in the x direction can be adjusted.

[0027] This makes it possible to easily attach lighting fixture 30 to wall 40 even if distance L1 between a pair of second mounting portions 22 already installed on wall 40 and distance L2 between a pair of connecting portions 30H provided on lighting fixture 30 are different from each other. Note that distance L1 is the shortest distance between the central axes of the pair of second mounting portions 22 provided on wall 40, as shown in FIG. 5. Also, distance L2 is the shortest distance between the central axes of a pair of through holes provided in lighting fixture 30, as shown in FIG. 5.

[0028] <Adapter assembly configuration> Fig. 3 is a schematic cross-sectional view showing a state in which lighting fixture 30 is attached to wall 40 using adapter assembly 100 according to the first embodiment. As shown in Fig. 3, adapter assembly 100 includes a plurality of adapters 10. In adapter assembly 100 according to the first embodiment, there may be two adapters 10, as shown in Fig. 3.

[0029] The wall 40 may be, for example, a ceiling or a pillar erected against the floor. The material constituting the wall 40 is, for example, concrete. As shown in Fig. 3, the lighting fixture 30 is attached to the wall 40 using a pair of adapters 10. Specifically, the adapters 10 are fixed to the wall 40 using the mounting portions 20.

[0030] A pair of second mounting portions 22 is provided on the wall 40 (see FIG. 4). A pair of pilot holes is formed in the wall 40. The pilot holes are formed by drilling the wall 40. Anchors are provided in the pilot holes as the second mounting portions 22 of the mounting portion 20.

[0031] The pair of pilot holes are arranged to match the distance between a pair of connecting portions provided on the existing lighting fixture 200. Therefore, the distance L1 between the pair of second mounting portions 22 is determined by the distance between the pair of connecting portions provided on the existing lighting fixture 200. When the existing lighting fixture 200 is attached to the wall 40, a bolt corresponding to the anchor as the second mounting portion 22 is used. By inserting the bolt through the connecting portion provided on the existing lighting fixture 200, the existing lighting fixture 200 is directly attached to the wall 40.

[0032] When lighting fixture 30 is attached to wall 40 using adapter 10 according to the first embodiment, adapter 10 is positioned so that second surface 12 faces wall 40. In a plan view of first surface 11, through-hole 10H is positioned to overlap second mounting portion 22.

[0033] First mounting portion 21 is, for example, a bolt. First mounting portion 21 may be, for example, a low-head bolt or a flat head bolt. In this way, when lighting fixture 30 is mounted on wall 40, the gap formed between lighting fixture 30 and adapter 10 is reduced. As a result, the aesthetic appearance of lighting fixture 30 mounted on wall 40 is improved.

[0034] First mounting portion 21 is inserted into through-hole 10H. In this state, first mounting portion 21 is inserted into second mounting portion 22, thereby fixing adapter 10 to wall 40. Note that adapter 10 may be attached to wall 40 by any method.

[0035] When adapter 10 is fixed to wall 40 using mounting portion 20 in this manner, the relative position of first mounting portion 21 with respect to support portion 2 is adjusted depending on the position in the x direction at which first mounting portion 21 is disposed in region Q shown in Figure 2. Specifically, distance L from support portion 2 to first mounting portion 21 in the x direction is adjusted so that the distance between supports 2 in a pair of adapters 10 is the same as distance L2 between a pair of connecting portions 30H provided on lighting fixture 30.

[0036] As described above, the lighting fixture 30 is attached to the wall 40 using a pair of adapters 10. The lighting fixture 30 is provided with a pair of connecting portions 30H. The connecting portions 30H may be, for example, through holes. The support portion 2 is inserted into the connecting portions 30H, which are through holes. The lighting fixture 30 may be fixed to the adapters 10 using nuts 51 and washers 52.

[0037] Specifically, as shown in Fig. 3, the support portion 2 is inserted into a nut 51 and a washer 52. The washer 52 is disposed between the nut 51 and the base material, the lighting fixture 30. In other words, the washer 52 is in contact with the lighting fixture 30. The nut 51 is in contact with the washer 52. In this manner, the adapter 10 may support the lighting fixture 30. Note that the lighting fixture 30 may be supported by the adapter 10 by any method.

[0038] The lighting fixture 30 may be different from, for example, the existing lighting fixture 200 described above, or the lighting fixture 30 may be new. Specifically, the distance L2 between the pair of connecting portions 30H provided in the lighting fixture 30 may be different from the distance between the pair of connecting portions provided in the existing lighting fixture 200. In other words, the distance L2 between the pair of connecting portions 30H provided in the lighting fixture 30 may be different from the distance L1 between the pair of second mounting portions 22.

[0039] When attaching a new lighting fixture 30 to a wall 40 on which second mounting portions 22 are already formed, the distance L2 between the pair of connecting portions 30H may differ from the distance L1 between the pair of second mounting portions 22. If the adapter assembly 100 according to the first embodiment is not used, it is necessary to provide new second mounting portions 22 on the wall 40. Alternatively, it is necessary to prepare a different lighting fixture that is compatible with the existing second mounting portions 22. However, when providing new second mounting portions 22 on a wall 40 made of concrete, or when preparing a different lighting fixture, the installation time and cost of the lighting fixture increase.

[0040] On the other hand, by using the adapter 10 or the adapter assembly 100 according to the first embodiment, a new lighting fixture 30 can be attached to the wall 40 even if the distance L2 between the pair of connecting portions 30H is different from the distance L1 between the pair of second mounting portions 22. Specifically, by adjusting the distance L from the support portion 2 to the first mounting portion 21 in the x direction, the new lighting fixture 30 can be attached to the wall 40 without providing a new second mounting portion 22 on the wall 40. Furthermore, it is not necessary to prepare a separate lighting fixture that corresponds to the existing second mounting portion 22. As described above, when the distance L2 between the pair of connecting portions 30H is different from the distance L1 between the pair of second mounting portions 22, increases in installation time and costs for the lighting fixture 30 can be suppressed. In other words, by using the adapter 10 or the adapter assembly 100 according to the first embodiment, the lighting fixture 30 can be easily attached to the wall 40.

[0041] When fixing the adapter 10 to the wall 40, the adapter 10 may be moved so that the adapter 10 rotates around the first mounting portion 21 as a central axis. In this way, the distance between the support portions 2 of the pair of adapters 10 is adjusted.

[0042] <How to install lighting fixtures> Next, a method for mounting the lighting fixture will be described. Figures 4 and 5 are schematic cross-sectional views showing a step for mounting lighting fixture 30 on wall 40 using adapter assembly 100 according to the first embodiment.

[0043] First, a step (S1) is performed of preparing an adapter assembly 100. The adapter assembly 100 includes a plurality of adapters 10. The adapter assembly 100 according to the first embodiment may include two adapters 10.

[0044] Next, a step (S2) of fixing the adapter 10 to the wall 40 is performed. In this step (S2), as shown in FIG. 4, the adapter 10 is fixed to the wall 40 using the mounting portion 20. First, the adapter 10 is positioned so that the second surface 12 faces the wall 40. In a plan view of the first surface 11, the through hole 10H is positioned so as to overlap the second mounting portion 22. Next, the first mounting portion 21 is inserted into the through hole 10H. Thereafter, the first mounting portion 21 is inserted into the second mounting portion 22, thereby fixing the adapter 10 to the wall 40. The adapter 10 may be attached to the wall 40 by any method.

[0045] When adapter 10 is fixed to wall 40 using mounting portion 20 in this manner, the relative position of first mounting portion 21 with respect to support portion 2 is adjusted depending on the position in the x direction at which first mounting portion 21 is disposed in region Q shown in Figure 2. Specifically, distance L from support portion 2 to first mounting portion 21 in the x direction is adjusted so that the distance between supports 2 in a pair of adapters 10 is the same as distance L2 between a pair of connecting portions 30H provided on lighting fixture 30.

[0046] Next, a step (S3) of attaching the lighting fixture 30 to the wall 40 is performed. In this step, as shown in FIG. 5 , the lighting fixture 30 is attached to the wall 40 using a pair of adapters 10. Specifically, first, a new lighting fixture 30 is prepared. The prepared lighting fixture 30 has a pair of connecting portions 30H. The distance L2 between the pair of connecting portions 30H is different from the distance L1 between the pair of second mounting portions 22. Note that in the step (S2) of fixing the adapter 10 to the wall 40, by adjusting the distance L from the support portion 2 to the first mounting portion 21, the lighting fixture 30 can be attached to the wall 40 even if the distance L2 between the pair of connecting portions 30H provided on the lighting fixture 30 is different from the distance L1 between the pair of second mounting portions 22. Next, the support portion 2 is inserted into the connecting portion 30H, which is a through-hole. Next, the lighting fixture 30 may be fixed to the adapter 10 using a nut 51 and a washer 52.

[0047] In this way, the lighting fixture 30 can be easily mounted on a wall 40, as shown in FIG.

[0048] <Action and effect> An adapter 10 according to the present disclosure includes a plate portion 1 and a support portion 2. The plate portion 1 has a first surface 11 and a second surface 12. The first surface 11 faces the lighting fixture 30. The second surface 12 is located opposite the first surface 11. The support portion 2 is provided on the first surface 11. The support portion 2 supports the lighting fixture 30. A through hole 10H is provided in the plate portion 1. The through hole 10H extends from the first surface 11 to the second surface 12. The position of a first mounting portion 21 relative to the support portion 2 on the first surface 11 can be adjusted. The first mounting portion 21 is inserted through the through hole 10H.

[0049] In this way, even if the distance L2 between the pair of connecting portions 30H provided on the lighting fixture 30 is different from the distance L1 between the pair of second mounting portions 22, the lighting fixture 30 can be easily attached to the wall 40. Specifically, by adjusting the distance L from the support portion 2 to the first mounting portion 21 in the x direction, a new lighting fixture 30 can be attached to the wall 40 without providing a new second mounting portion 22 on the wall 40. Furthermore, it is not necessary to prepare a separate lighting fixture that is compatible with the existing second mounting portion 22. As described above, when the distance L2 between the pair of connecting portions 30H is different from the distance L1 between the pair of second mounting portions 22, increases in installation time and costs for the lighting fixture 30 can be suppressed.

[0050] According to the adapter 10, the through-hole 10H extends along the direction in which the plate portion 1 extends (x direction).

[0051] In this way, the position in the x direction at which first mounting portion 21 is disposed within region Q where through hole 10H is formed can be changed as desired. In other words, the relative position of first mounting portion 21 with respect to support portion 2 is adjusted. As a result, even if distance L2 between a pair of connecting portions 30H provided on lighting fixture 30 differs from distance L1 between a pair of second mounting portions 22, lighting fixture 30 can be easily attached to wall 40.

[0052] An adapter assembly 100 according to the present disclosure includes a plurality of adapters 10 as described above. In this way, even if the distance L2 between the pair of connecting portions 30H provided on the lighting fixture 30 is different from the distance L1 between the pair of second mounting portions 22, the lighting fixture 30 can be easily attached to the wall 40. Specifically, by adjusting the distance L in the x direction from the support portion 2 to the first mounting portion 21, a new lighting fixture 30 can be attached to the wall 40 without providing a new second mounting portion 22 on the wall 40. Furthermore, it is not necessary to prepare another lighting fixture that corresponds to the existing second mounting portion 22. As described above, when the distance L2 between the pair of connecting portions 30H is different from the distance L1 between the pair of second mounting portions 22, increases in installation time and costs for the lighting fixture 30 can be suppressed.

[0053] Embodiment 2 <Adapter configuration> Fig. 6 is a schematic plan view of adapter 10 according to embodiment 2. Fig. 6 corresponds to Fig. 2. Adapter 10 shown in Fig. 6 basically has the same configuration as adapter 10 shown in Figs. 1 and 2 and can achieve the same effects, but differs in that through-hole 10H includes multiple hole portions 11H.

[0054] 6, in a plan view of the first surface 11, the shape of the hole 11H is circular. The multiple holes 11H are spaced apart from one another in the x direction. The multiple holes 11H may be arranged at equal intervals in the x direction. The inner circumferential width of the hole 11H may be the same as the nominal diameter of the first mounting portion 21.

[0055] The first attachment portion 21 may be inserted into any one of the plurality of holes 11H. In this way, the distance L from the support portion 2 to the first attachment portion 21 in the x direction can be adjusted.

[0056] <Action and effect> According to the adapter 10, the through-hole 10H includes a plurality of hole portions 11H.

[0057] In this way, the first mounting portion 21 can be inserted into any of the plurality of holes 11H, and as a result, the distance L (see FIG. 3) from the support portion 2 to the first mounting portion 21 in the x direction can be adjusted.

[0058] Embodiment 3 <Adapter configuration> Fig. 7 is a schematic plan view of adapter 10 according to embodiment 3. Fig. 7 corresponds to Fig. 6. Adapter 10 shown in Fig. 7 basically has the same configuration as adapter 10 shown in Fig. 6 and can achieve the same effects, but differs in that multiple holes 11H are connected together.

[0059] 7, the circular holes 11H are connected to one another in the x direction in a plan view of the first surface 11. That is, a single through-hole 10H is formed by the plurality of holes 11H being connected to one another.

[0060] By doing so, the position in the x direction where the first mounting portion 21 is disposed can be adjusted more precisely. In this way, the distance L from the support portion 2 to the first mounting portion 21 in the x direction can be adjusted.

[0061] <Action and effect> According to the adapter 10, the plurality of holes 11H are connected to one another.

[0062] In this way, the position where the first attachment portion 21 is disposed in the x direction can be adjusted more precisely, and as a result, the distance L from the support portion 2 to the first attachment portion 21 in the x direction can be adjusted.

[0063] Embodiment 4 <Adapter configuration> Fig. 8 is a schematic plan view of adapter 10 according to embodiment 4. Fig. 8 corresponds to Fig. 2. Adapter 10 shown in Fig. 8 basically has the same configuration as adapter 10 shown in Figs. 1 and 2 and can achieve the same effects, but differs in that a scale portion 3 is provided on first surface 11.

[0064] The scale portion 3 is disposed adjacent to the through-hole 10H in the y direction. The scale portion 3 indicates the distance L3 from the support portion 2. Specifically, the scale portion 3 may be composed of, for example, a plurality of grooves. The plurality of grooves are formed in the first surface 11.

[0065] When the first mounting portion 21 is placed within the range of the area Q in which the through hole 10H is formed in the x direction, the distance L from the support portion 2 to the first mounting portion 21 can be determined by reading the distance L3 from the support portion 2 indicated by the scale portion 3.

[0066] <Action and effect> According to the adapter 10, the scale portion 3 is provided on the first surface 11. The scale portion 3 indicates the distance L3 from the support portion 2.

[0067] In this way, when the first mounting portion 21 is placed within the range of the area Q in which the through hole 10H is formed in the x direction, the distance L from the support portion 2 to the first mounting portion 21 can be determined by reading the distance L3 from the support portion 2 indicated by the scale portion 3.

[0068] Embodiment 5 <Adapter assembly configuration> 9 is a partially enlarged schematic cross-sectional view showing lighting fixture 30 being attached to wall 40 using adapter assembly 100 according to embodiment 5. Adapter assembly 100 shown in FIG. 9 basically has the same configuration as adapter assembly 100 shown in FIG. 3 and can achieve the same effects, but differs in that protrusion 13 is provided on second surface 12.

[0069] The protrusion 13 is embedded in the wall 40. The adapter 10 is fixed to the wall 40 at two points: the first mounting portion 21 and the protrusion 13. Therefore, the adapter 10 does not rotate around the first mounting portion 21 as a central axis. In other words, the position of the adapter 10 relative to the wall 40 is fixed.

[0070] Note that double-sided tape may be provided on second surface 12 instead of protrusion 13. By providing double-sided tape on second surface 12, adapter 10 is fixed to wall 40 at two points: first attachment portion 21 and the double-sided tape. In this manner, the relative position of adapter 10 with respect to wall 40 may be fixed.

[0071] <Action and effect> According to the adapter 10, the second surface 12 is provided with the protrusion 13.

[0072] In this way, the adapter 10 will not rotate around the first attachment portion 21 as a central axis. In other words, the relative position of the adapter 10 with respect to the wall 40 is fixed.

[0073] Embodiment 6 <Adapter assembly configuration> Fig. 10 is a schematic plan view of an adapter 10 according to a sixth embodiment. The adapter 10 shown in Fig. 10 basically has the same configuration as the adapter 10 shown in Figs. 1 and 2 and can achieve the same effects, but differs in that the plate portion 1 includes a first plate portion 1a and a second plate portion 1b. In Fig. 10, the portion of the first plate portion 1a that is embedded in the second plate portion 1b is indicated by a dotted line.

[0074] The support portion 2 is provided on the first plate portion 1a. The through-hole 10H is provided on the second plate portion 1b.

[0075] The relative position of the second plate portion 1b with respect to the first plate portion 1a can be changed. Specifically, a fitting portion is provided on the second plate portion 1b. The fitting portion is provided on a side surface 14 of the second plate portion 1b. The side surface 14 is, for example, a surface that is continuous with the first surface 11 and the second surface 12. The side surface 14 is a surface that extends in a direction perpendicular to the x direction.

[0076] A portion of the first plate portion 1a is fitted into a fitting portion of the second plate portion 1b. By moving the first plate portion 1a along the x direction, the relative position of the second plate portion 1b with respect to the first plate portion 1a can be changed. In other words, the distance L4 in the x direction from the support portion 2 to the through-hole 10H can be adjusted. In this way, the distance L in the x direction from the support portion 2 to the first mounting portion 21 can be adjusted.

[0077] <Action and effect> According to the adapter 10, the plate portion 1 includes a first plate portion 1a and a second plate portion 1b. The first plate portion 1a is provided with a support portion 2. The second plate portion 1b is provided with a through-hole 10H. The relative position of the second plate portion 1b with respect to the first plate portion 1a can be changed.

[0078] In this way, by changing the relative position of the second plate portion 1b with respect to the first plate portion 1a, it is possible to adjust the distance L from the support portion 2 to the first attachment portion 21 in the x direction.

[0079] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. Unless there is a contradiction, at least two of the embodiments disclosed herein may be combined. The basic scope of the present disclosure is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0080] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) a plate portion having a first surface facing the lighting fixture and a second surface positioned opposite to the first surface; a support portion provided on the first surface and supporting the lighting device; the plate portion is provided with a through hole that reaches from the first surface to the second surface, An adapter in which the relative position of a first mounting portion inserted into the through hole with respect to the support portion can be adjusted on the first surface. (Appendix 2) 2. An adapter as described in Appendix 1, wherein the through hole extends along the direction in which the plate portion extends. (Appendix 3) 3. The adapter of claim 1, wherein the through hole includes a plurality of holes. (Appendix 4) 4. The adapter of claim 3, wherein a plurality of the holes are connected together. (Appendix 5) An adapter according to any one of Supplementary Note 1 to Supplementary Note 4, wherein the first surface is provided with a scale portion indicating the distance from the support portion. (Appendix 6) 6. The adapter according to any one of claims 1 to 5, wherein the second surface is provided with a convex portion. (Appendix 7) the plate portion includes a first plate portion on which the support portion is provided and a second plate portion on which the through hole is provided, 7. An adapter according to any one of claims 1 to 6, wherein the relative position of the second plate portion with respect to the first plate portion can be changed. (Appendix 8) An adapter assembly comprising a plurality of adapters according to any one of claims 1 to 7. [Explanation of symbols]

[0081] 1 Plate portion, 1a First plate portion, 1b Second plate portion, 2 Support portion, 3 Scale portion, 10 Adapter, 10H Through hole, 11 First surface, 11H Hole portion, 12 Second surface, 13 Convex portion, 14 Side, 20 Mounting portion, 21 First mounting portion, 22 Second mounting portion, 30 Lighting fixture, 30H Joint portion, 40 Wall, 51 Nut, 52 Washer, 100 Adapter assembly, 200 Lighting fixture, L, L1, L2, L3, L4 Distance, Q Area, w Width, t Thickness, h Height.

Claims

1. a plate portion having a first surface facing the lighting fixture and a second surface positioned opposite to the first surface; a support portion provided on the first surface and supporting the lighting device, the plate portion is provided with a through hole that extends from the first surface to the second surface, An adapter, wherein a relative position of a first mounting portion inserted into the through hole with respect to the support portion can be adjusted on the first surface.

2. The adapter according to claim 1 , wherein the through hole extends in a direction in which the plate portion extends.

3. The adapter of claim 1 , wherein the through-hole includes a plurality of holes.

4. The adapter according to claim 3 , wherein a plurality of said holes are connected to each other.

5. The adapter according to claim 1 , wherein the first surface is provided with a scale indicating a distance from the support portion.

6. The adapter of claim 1 , wherein the second surface is provided with a protrusion.

7. the plate portion includes a first plate portion on which the support portion is provided and a second plate portion on which the through hole is provided, The adapter of claim 1 , wherein the relative position of the second plate portion with respect to the first plate portion can be changed.

8. An adapter assembly comprising a plurality of adapters according to any one of claims 1 to 7.

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