Renewal plate

Abstract

To provide a renewal plate which can be easily manufactured even when an applicable embedding hole diameter increases.SOLUTION: A renewal plate is attached to an attached part on which an embedding hole is formed, and supports a lighting tool arranged in the embedding hole. The renewal plate includes: a plate-like decorative frame on which a decorative frame opening communicating with the embedding hole is formed and which is arranged on a design side of the attached part; an attachment plate which is arranged on the other side, to which the decorative frame is attached, in which an attachment panel opening is formed, and which has one or more positioning regions on which a plurality of positioning holes are formed, on the outside of the attachment panel opening; and a positioning component which faces an inner wall of the embedding hole at the attached part by being inserted into one of the positioning holes. The plurality of positioning holes have mutually different radius distances from a center of the attachment panel opening facing a center of the embedding hole in a state where the attachment panel is attached to the attached part. The positioning component is arranged on an inner peripheral side of one of the plurality of positioning holes, and is inserted into the positioning hole which has the shortest distance from the inner wall of the embedding hole.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a renewal plate that supports a lighting fixture to be attached to a recessed hole in a mounting portion such as a ceiling. [Background technology]

[0002] Among renewal plates, there is one in which a mounting plate and a decorative frame are fastened to each other with bolts while sandwiching a ceiling material, thereby supporting a recessed lighting fixture. For example, recessed holes for downlights are generally constructed with a specified diameter, but this diameter may not be specified depending on the installation location. Therefore, it is necessary to prepare several types of dedicated renewal plates with different diameters to accommodate recessed hole diameters other than the specified diameter. Therefore, a renewal plate configured to accommodate two types of recessed hole diameters is known (see, for example, Patent Document 1). In the renewal plate (hereinafter also referred to as a support device) disclosed in Patent Document 1, a mounting plate (also referred to as a plate) placed on the upper side of the ceiling material has first and second protrusions that are placed within the recessed hole in the ceiling material and function as positioning parts for the recessed hole. The first protrusion is located radially inward of the second protrusion. When the embedding hole in the ceiling material has a small diameter, i.e., when only the first convex portion of the first and second convex portions is located inside the embedding hole, positioning is determined by the first convex portion and the inner wall of the embedding hole. On the other hand, when the embedding hole in the ceiling material has a large diameter, i.e., when both the first and second convex portions are located inside the embedding hole, positioning is determined by the second convex portion of the first and second convex portions that is closer to the inner wall of the embedding hole, and the inner wall of the embedding hole. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6706405 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the support device disclosed in Patent Document 1, a first protrusion and a second protrusion are formed on the plate. For the first protrusion on the inner periphery to function as a positioning portion, the downward protrusion length of the first protrusion must be longer than the downward protrusion length of the second protrusion. Therefore, to increase the number of types of embedding hole diameters that can be accommodated using the method disclosed in Patent Document 1, the downward protrusion length of the first protrusion must also be increased as the number increases. Furthermore, in Patent Document 1, due to the difference in the protrusion lengths of each protrusion, the first protrusion is formed by bending a portion of the inner periphery edge of the plate downward, and the second protrusion is formed by cutting a notch in the plate surface on the outer periphery side of the first protrusion (i.e., between the outer periphery edge of the plate and the first protrusion) and bending it. Therefore, to increase the number of types of embedding hole diameters that can be accommodated using the method disclosed in Patent Document 1, the downward protrusion lengths of each protrusion are different, so the formation method must also be changed, such as by changing the length of the notch. As described above, in Patent Document 1, the positioning portions corresponding to each embedding hole diameter are convex portions pre-formed on the plate, so the length and forming method must be changed for each positioning portion, and the manufacturing method becomes complicated when increasing the number of compatible embedding hole diameters.

[0005] The present disclosure has been made to solve the above-mentioned problems, and provides a renewal plate that can be easily manufactured even when the number of compatible embedding hole diameters is increased. [Means for solving the problem]

[0006] The renewal plate according to the present disclosure is a renewal plate that is attached to a mounting portion having a recessed hole formed therein and supports a lighting fixture to be placed in the recessed hole, and includes: a plate-shaped decorative frame that has a decorative frame opening that communicates with the recessed hole and is placed on the design side of the mounting portion; a mounting plate that is placed on the side opposite the design side of the mounting portion and to which the decorative frame is attached, and has a mounting plate opening that communicates with the recessed hole and the decorative frame opening, and has one or more positioning areas outside the mounting plate opening with a plurality of positioning holes formed therein; and positioning components that are placed in each of the one or more positioning areas and are inserted into one of the plurality of positioning holes in each positioning area to face the inner wall of the recessed hole in the mounting portion, and the plurality of positioning holes have different radial distances from the center of the mounting plate opening that face the center of the recessed hole when the mounting plate is attached to the mounting portion, and the positioning component is inserted into the positioning hole that is placed on the inner side of the recessed hole and has the shortest distance from the inner wall of the recessed hole. [Effects of the Invention]

[0007] In the renewal plate disclosed herein, the mounting plate has one or more positioning regions with multiple positioning holes formed outside the mounting plate opening. The renewal plate also includes a positioning component disposed in each of the positioning regions, inserted into one of the multiple positioning holes and facing the inner wall of the mounting hole in the mounting base. The multiple positioning holes have different radial distances from the center of the mounting plate opening that faces the center of the mounting hole when the mounting plate is attached to the mounting base. The positioning component is inserted into the positioning hole that is located on the inner periphery of the mounting hole and has the shortest distance from the inner wall of the mounting hole. This allows the mounting plate to be positioned relative to the mounting hole using the positioning holes formed in the mounting plate and the positioning component inserted into the positioning holes. This eliminates the need to change the length of the positioning component or the method of forming the positioning holes for each corresponding mounting hole diameter. This allows for easy manufacturing even when the number of compatible mounting hole diameters is increased. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a state from below before a lighting fixture is attached to a ceiling material to which a renewal plate according to the first embodiment has been attached. FIG. [Figure 2] FIG. 2 is an exploded perspective view of the lighting device and ceiling material of FIG. 1. [Figure 3] 2 is a bottom view showing the configuration of the mounting plate in the renewal plate of FIG. 1. FIG. [Figure 4] 4 is an explanatory diagram illustrating the arrangement of a plurality of positioning holes in the mounting plate of FIG. 3. FIG. [Figure 5] 2 is a longitudinal cross-sectional view of the mounting plate and ceiling material passing through the positioning component of FIG. 1. [Figure 6] 2 is a vertical cross-sectional view schematically showing a method for placing the mounting plate of FIG. 1 on a ceiling material, showing a state in which one corner of the mounting plate is inserted into an embedding hole. FIG. [Figure 7] 2 is a vertical cross-sectional view schematically showing a method for placing the mounting plate of FIG. 1 on a ceiling material, showing a state in which the right end of the mounting plate has been inserted into the embedding hole. FIG. [Figure 8] 2 is a vertical cross-sectional view schematically showing a method for placing the mounting plate of FIG. 1 on a ceiling material, showing a state in which most of the mounting plate has been placed on the ceiling material. FIG. [Figure 9] FIG. 3 is a bottom view showing the configuration of the decorative frame of FIG. 2. [Figure 10] 2 is a vertical cross-sectional view taken along the central position of the mounting plate and the innermost positioning hole in the rear positioning region in a state in which the lighting device of FIG. 1 is attached to a ceiling material. FIG. [Figure 11] 2 is a longitudinal cross-sectional view of the lighting device of FIG. 1 mounted on a ceiling material, taken along a plane that passes through the center of a mounting plate and extends in the front-rear direction. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of a renewal plate according to the present disclosure will be described with reference to the drawings. Note that the present disclosure is not limited to the embodiment described below. Furthermore, in the following drawings, including FIG. 1, the size relationships of the components may differ from the actual ones. Furthermore, in the following description, terms indicating directions are used as appropriate to facilitate understanding, but these terms are for explanatory purposes and do not limit the present disclosure. Examples of terms indicating directions include "up," "down," "right," "left," "front," and "rear."

[0010] Embodiment 1 FIG. 1 is a perspective view showing a state from below before a lighting fixture 9 is attached to a ceiling material 200 to which a renewal plate 1 according to embodiment 1 is attached. FIG. 2 is an exploded perspective view of the lighting device 100 and ceiling material 200 of FIG. 1. FIG. 3 is a bottom view showing the configuration of the mounting plate 2 of the renewal plate 1 of FIG. 1. FIG. 4 is an explanatory diagram explaining the arrangement of multiple positioning holes H1, H2, H3, H4, and H5 on the mounting plate 2 of FIG. 3. As shown in FIG. 1, the lighting fixture 9 and the renewal plate 1 constitute the lighting device 100.

[0011] The lighting fixture 9 irradiates a target area with light. The lighting fixture 9 is a recessed downlight that is installed by being recessed in a circular recessed hole 201 that is bored upward from an opening edge 201a (see FIG. 2) formed in a target area, such as a ceiling material 200. The lighting fixture 9 includes a main body 94 that houses a light source and a lighting circuit (not shown), and a reflective frame 92 that is provided below the main body 94 and reflects light toward the target area. The reflective frame 92 has a circular cross-sectional shape and is configured so that its inner diameter gradually increases toward an irradiation port 92e at its lower end. A reflective frame flange 93 is provided at the lower end of the reflective frame 92, extending from the irradiation port 92e toward the outer periphery. The lighting fixture 9 also includes a plurality of mounting springs 91 that extend upward and toward the outer periphery from the reflective frame 92. Mounting grooves 92r are provided on the outer side of the reflective frame 92, into which the mounting springs 91 are attached. The configuration of the mounting spring 91 will be described later.

[0012] In the first embodiment, the mounting portion is defined as a ceiling material 200 that is installed in a horizontal direction. Below, the left-right direction of the horizontal direction is represented by the arrow X direction, and the depth direction (i.e., the front-rear direction) is represented by the arrow Y direction. Furthermore, the up-down direction, which is the direction perpendicular to the mounting portion, the ceiling material 200, is represented by the arrow Z direction. The mounting portion may also be a side wall of a room.

[0013] (Renewal Plate 1) The renewal plate 1 is attached to a ceiling material 200 having a recessed hole 201 formed therein, and supports a lighting fixture 9. The renewal plate 1 has a plate-shaped mounting plate 2 that is placed above the ceiling material 200 through the recessed hole 201, and a plate-shaped decorative frame 3 that is placed on the design side (underside) of the ceiling material 200. The renewal plate 1 also has a positioning part 5 for positioning the mounting plate 2 with respect to the recessed hole 201 of the ceiling material 200. The decorative frame 3 is configured to be attached to the mounting plate 2 by fixtures 4, such as screws or bolts.

[0014] 2 and 3, the mounting plate 2 has a mounting plate opening 20a formed in the approximate center when viewed from below, which communicates with the mounting hole 201 in the ceiling material 200. A notch 20c connecting to the mounting plate opening 20a is formed in part of the outer edge of the mounting plate 2. The mounting plate 2 has an outer shape that is larger than the mounting hole 201 in the ceiling material 200. The mounting plate opening 20a and the notch 20c formed in the mounting plate 2 form an approximate U-shape.

[0015] The mounting plate 2 has a flat plate-like portion 21 arranged parallel to the upper surface of the ceiling material 200 (the surface opposite the design side of the ceiling material 200), and a flange portion 22 provided on the outer edge of the plate-like portion 21. Also, an inner edge notch 27 is formed on the inner edge of the mounting plate 2 so as to partially enlarge the mounting plate opening 20a.

[0016] 2 and 3, the plate-shaped portion 21 is rectangular, and downward-protruding flanges 22 are formed on the front, rear, and right edges of the plate-shaped portion 21, with a notch 20c formed on the left edge of the plate-shaped portion 21. Also, in FIGS. 2 and 3, inner edge notches 27 are formed on the right-hand front side and the right-hand rear side of the inner edge of the mounting plate 2. Three mounting springs 91 of the lighting fixture 9 are disposed in the front inner edge notch 27, the rear inner edge notch 27, and the left notch 20c, respectively. These mounting springs 91, together with the reflective frame flange 93, clamp the edge of the ceiling material 200 to which the renewal plate 1 is attached, and abut against the interior of the ceiling (not shown), thereby fixing the lighting fixture 9 to the ceiling material 200.

[0017] The configuration of the mounting plate 2 is not limited to the above configuration. For example, the shape of the plate-shaped portion 21, the portion where the flange portion 22 is provided, and the orientation of the flange portion 22 can be changed as appropriate. For example, the flange portion 22 may be formed to protrude upward, and the lower surface of the plate-shaped portion 21 may be positioned so as to contact the upper surface of the ceiling material 200.

[0018] 1 to 3 illustrate an example in which a lighting fixture 9 having a diameter of 125 mm is attached to a ceiling material 200 having a recessed hole diameter of 160 mm. In FIG. 3, the outline of the recessed hole 201 shown in FIG. 2 is indicated by a dashed circle C201. FIG. 3 also illustrates the center C0 of the recessed hole 201. In the following, to facilitate the explanation of the structure of the plate-shaped portion 21, the mounting plate 2 is defined as being disposed so that the central position of the plate-shaped portion 21 coincides with the center C0 of the recessed hole 201 when viewed from below. In the following, the central position of the plate-shaped portion 21 may also be referred to as the center of the mounting plate opening 20 a.

[0019] 3 and 4, the plate-shaped portion 21 is provided with one or more positioning areas (positioning areas Ra, Rb, and Rc) in which the positioning components 5 (see FIG. 2) are arranged. In order to enable the renewal plate 1 to accommodate a plurality of types of embedding hole diameters, each positioning area is formed with a plurality of positioning holes (positioning holes H1, H2, H3, H4, and H5) having different radial distances (radii A1, A2, A3, A4, and A5) from the center C0 when viewed from below.

[0020] 3 and 4, positioning areas Ra, Rb, and Rc are provided in three locations on the plate-shaped portion 21: the right side, the left front side, and the left rear side of the mounting plate opening 20a. The positioning areas Ra, Rb, and Rc are provided at regular intervals in the circumferential direction. Five positioning holes H1, H2, H3, H4, and H5 are formed in each positioning area Ra, Rb, and Rc. That is, the mounting plate 2 in FIG. 3 is configured to accommodate five different mounting hole diameters (e.g., φ160, φ165, φ175, φ180, and φ185).

[0021] As shown in FIG. 4, in a bottom view, positioning hole H1 in positioning areas Ra, Rb, and Rc is arranged on circle C1 with radius A1, positioning hole H2 is arranged on circle C2 with radius A2, positioning hole H3 is arranged on circle C3 with radius A3, positioning hole H4 is arranged on circle C4 with radius A4, and positioning hole H5 is arranged on circle C5 with radius A5. Circles C1, C2, C3, C4, and C5 are concentric circles centered on the center (center C0) of mounting plate opening 20a. Here, the following is defined: radius A1 < radius A2 < radius A3 < radius A4 < radius A5.

[0022] Positioning hole H2 is positioned at a position offset in one circumferential direction relative to positioning hole H1, and positioning hole H3 is positioned at a position offset in the other circumferential direction relative to positioning hole H1. Positioning hole H4 is positioned between positioning holes H1 and H3, and positioning hole H5 is positioned between positioning holes H1 and H2. In this way, positioning holes H that are close in radial distance (for example, positioning holes H1 and H2) are positioned as far apart as possible in the circumferential direction.

[0023] The five positioning holes H1, H2, H3, H4, and H5 have the same hole diameter. A positioning component 5 (see FIG. 2) is inserted into one of the five positioning holes H1, H2, H3, H4, and H5 for each positioning region Ra, Rb, and Rc. In FIG. 2, the positioning component 5 is inserted into the innermost positioning hole H1 (see FIG. 3) among the multiple positioning holes. As shown in FIG. 3, the diameter of the circle C1 on which the three positioning holes H1 are arranged (i.e., twice the radius A1) is set slightly smaller than the diameter of the corresponding embedding hole (e.g., 160 mm; see the outline of the embedding hole 201 indicated by the dashed circle C201).

[0024] 5 is a vertical cross-sectional view of the mounting plate 2 and ceiling material 200 passing through the positioning part 5 of FIG. 1. Hereinafter, the above-mentioned multiple positioning holes H1, H2, H3, H4, and H5 may be referred to simply as positioning hole H without being distinguished from one another. As shown in FIG. 5, the positioning part 5 is an elongated part such as a plastic rivet or a screw that can be attached to and detached from the mounting plate 2. The positioning part 5 is inserted from above into the positioning hole H (positioning hole H1 in FIG. 5) in the mounting plate 2, with the lower part facing radially against the inner wall 202 of the embedding hole 201 in the ceiling material 200.

[0025] As shown in Figure 5, the positioning hole H in the plate-shaped portion 21 is provided so that the positioning component 5 inserted into this positioning hole H is positioned with a radial clearance G (e.g., several millimeters) between it and the inner wall 202 of the embedding hole 201 having an embedding hole diameter corresponding to this positioning hole H.

[0026] As described above, assuming that the possible recessed hole diameters are defined as five types: φ160, φ165, φ175, φ180, and φ185, when the recessed hole diameter in the ceiling material 200 is φ160, the positioning component 5 is inserted into the innermost positioning hole H1 as shown in FIG. 2. Specifically, when the recessed hole diameter is φ160, as shown in FIG. 3, among the multiple positioning holes H1, H2, H3, H4, and H5, only the innermost positioning hole H1 is positioned entirely within the recessed hole 201. The remaining positioning holes H2, H3, H4, and H5 cannot be inserted with the positioning component 5 because part or all of the positioning hole H overlaps with the ceiling material 200 as viewed from below. When the recessed hole diameter in the ceiling material 200 is φ165, φ175, φ180, or φ185, two or more positioning holes H are positioned within the recessed hole 201 as viewed from below. In this case, the positioning component 5 is inserted into the positioning hole H that is closest to the inner wall 202 among the two or more positioning holes H arranged in the embedding hole 201 .

[0027] Although not shown, the diameter of the recessed hole corresponding to each positioning hole H may be indicated by an engraving or a sticker near each positioning hole H on the plate-shaped portion 21. This makes it easier for the user to determine which positioning hole H to use when positioning the mounting plate 2 of the renewal plate 1 relative to the recessed hole 201 of the ceiling material 200.

[0028] Furthermore, the plate-like portion 21 is formed with mounting holes 29 (for example, screw holes into which screws serving as the mounting tools 4 are screwed) into which mounting tools 4 are inserted to mount the decorative frame 3 to the mounting plate 2. As shown in Fig. 3, when viewed from the bottom of the mounting plate 2, the mounting holes 29 are provided on the inner circumferential side of the outline (indicated by a circle C201) of the embedding hole 201 in the case of the smallest diameter among the diameters of the embedding holes that can be accommodated.

[0029] 2 and 3, mounting holes 29 are formed in two locations in the circumferential direction: between the front inner edge notch 27 and the left edge notch 20c, and between the rear inner edge notch 27 and the left edge notch 20c. More specifically, mounting holes 29 are formed in the circumferential direction: between the front inner edge notch 27 and the front positioning region Rb, and between the rear inner edge notch 27 and the rear positioning region Rc. In FIG. 3, mounting holes 29 are provided radially inward of the positioning holes H1, H2, H3, H4, and H5.

[0030] Fig. 6 is a vertical cross-sectional view schematically showing a method for arranging the mounting plate 2 of Fig. 1 on the ceiling material 200, and is a view showing a state in which one corner of the mounting plate 2 is inserted into the embedding hole 201. Fig. 7 is a vertical cross-sectional view schematically showing a method for arranging the mounting plate 2 of Fig. 1 on the ceiling material 200, and is a view showing a state in which the right end of the mounting plate 2 is inserted into the embedding hole 201. Fig. 8 is a vertical cross-sectional view schematically showing a method for arranging the mounting plate 2 of Fig. 1 on the ceiling material 200, and is a view showing a state in which most of the mounting plate 2 is arranged on the ceiling material 200.

[0031] As explained using Figure 2, the mounting plate 2 has an outer shape larger than the embedding hole 201 in the ceiling material 200. However, since a notch 20c is formed in part of the outer edge, the mounting plate 2 can also be attached to an embedding hole 201 having a diameter narrower than the widths Wx and Wy of the mounting plate 2. An example of a method for placing the mounting plate 2 on the ceiling material 200 will be explained using Figures 6 to 8.

[0032] First, the user tilts the mounting plate 2 so that the left and rear corner 2c of the mounting plate 2 is positioned at the top, and inserts the opening edge of the recessed hole 201 in the ceiling material 200 into the notch 20c on the left side of the mounting plate 2, thereby placing the corner 2c of the mounting plate 2 through the recessed hole 201 and into the attic. Next, the user pushes up the right portion 2a of the mounting plate 2 while rotating the mounting plate 2 around the notch 20c as an axis, and inserts the entire right portion 2a into the attic through the recessed hole 201. Next, the user inserts the front portion 2b of the mounting plate 2 into the attic through the recessed hole 201, and places the mounting plate 2 on the top surface of the ceiling material 200 by tilting it so that the plate-shaped portion 21 is horizontal as shown in FIG.

[0033] 6 to 8, positioning parts 5 are attached to the positioning areas Ra, Rb, and Rc of the mounting plate 2 before the mounting plate 2 is placed on the ceiling material 200. Therefore, by adjusting the horizontal position of the mounting plate 2 so that the three positioning parts 5 shown in FIG. 2 are placed in the embedding hole 201 as shown in FIG. 1, the mounting plate 2 can be positioned relative to the embedding hole 201 in the ceiling material 200.

[0034] Fig. 9 is a bottom view showing the configuration of the decorative frame 3 in Fig. 2. Fig. 10 is a vertical cross-sectional view passing through the center position of the mounting plate 2 and the innermost positioning hole H1 in the rear positioning region Rc when the lighting device 100 in Fig. 1 is attached to the ceiling material 200. Fig. 11 is a vertical cross-sectional view taken along a plane passing through the center position of the mounting plate 2 and extending in the front-to-rear direction (direction of arrow Y) when the lighting device 100 in Fig. 1 is attached to the ceiling material 200. The decorative frame 3 is arranged so that the center of the decorative frame 3 coincides with the center C0 of the embedding hole 201 (see Fig. 3) when viewed from below.

[0035] As shown in Fig. 9, the decorative frame 3 is annular with a decorative frame opening 30 formed in the center. As shown in Figs. 2 and 9, the decorative frame 3 has an annular outer peripheral portion 31, an inner peripheral portion 32 provided on the inner peripheral side of the outer peripheral portion 31, and a tubular connecting portion 33 connecting the outer peripheral portion 31 and the inner peripheral portion 32. As shown in Figs. 2 and 10, the outer peripheral portion 31 and the inner peripheral portion 32 have horizontal surfaces located at different heights, and the outer peripheral portion 31 is located below the ceiling material 200 and contacts the underside of the ceiling material 200, and the inner peripheral portion 32 is located within the embedding hole 201 of the ceiling material 200.

[0036] The decorative frame 3 has an outer diameter larger than the maximum diameter (for example, 185 mm) of the recessed hole that can be accommodated by the renewal plate 1. This prevents a gap formed between the inner wall 202 of the recessed hole 201 and the lighting fixture 9 when the lighting fixture 9 is placed in the recessed hole 201 from being seen by a user below.

[0037] As described above, the decorative frame 3 has an outer peripheral portion 31 and an inner peripheral portion 32 connected by a connecting portion 33, and as shown in Figure 10, the outer peripheral portion 31 and the inner peripheral portion 32 of the decorative frame 3 face each of the positioning areas Ra, Rb, and Rc of the mounting plate 2 in the vertical direction (arrow Z direction). A ceiling material 200 is interposed in part between the decorative frame 3 and the mounting plate 2.

[0038] 9 and 10, a decorative frame notch 35 is formed on the inner edge of the decorative frame 3 so as to partially enlarge the decorative frame opening 30. Also, as shown in Figures 9 and 11, the decorative frame 3 is formed with a mounting hole 34 into which a mounting fixture 4 is inserted to mount the decorative frame 3 to the mounting plate 2.

[0039] 9, decorative frame notches 35 are formed on the right and front side, the right and rear side, and the left side of the inner edge of the inner periphery 32. As shown in FIGS. 2 and 10, the decorative frame notches 35 are provided to face the inner edge notches 27 or the notches 20c of the mounting plate 2 in the vertical direction (the direction of the arrow Z), and each mounting spring 91 of the lighting fixture 9 is configured to pass through the decorative frame notches 35 or the notches 20c of the decorative frame 3 and the inner edge notches 27 of the mounting plate 2.

[0040] The structure of the mounting spring 91 of the lighting fixture 9 will now be described with reference to Figure 10. The mounting spring 91 is made of an elastic material such as stainless steel, and is a leaf spring formed by curving and bending a strip-shaped plate material. The mounting spring 91 has a generally bow-like shape that is convex upward.

[0041] 10, the mounting spring 91 has a V-shaped spring base end 91a, a spring tip end 91b, and a spring connection portion 91c that connects the spring base end 91a and the spring tip end 91b. One side of the spring base end 91a is inserted into a mounting groove 92r of the reflecting frame 92, and the other side of the spring base end 91a is connected to the spring connection portion 91c. The spring connection portion 91c is bent so as to form a step between the spring base end 91a and the spring tip end 91b.

[0042] The shape of the attachment spring 91 is not limited to the shape shown in Fig. 10. For example, the spring connection portion 91c may not have a step.

[0043] However, if the spring tip 91b of the mounting spring 91 of the lighting fixture 9 comes into contact with the mounting plate 2 and the mounting spring 91 compresses inward, the holding load of the mounting spring 91 will decrease. For this reason, the radial depth and circumferential size of the inner edge notch 27 formed in the mounting plate 2 are set in advance so that the mounting spring 91 of the lighting fixture 9 does not come into contact with the edge of the inner edge notch 27.

[0044] On the other hand, the decorative frame 3 ensures the holding load of the mounting spring 91 by supporting the spring base end 91a of the mounting spring 91. Therefore, the height position of the inner peripheral portion 32 in which the decorative frame notch 35 is formed and the radial depth of the decorative frame notch 35 are set in advance so as to ensure the holding load of the mounting spring 91. The height position of the inner peripheral portion 32 of the decorative frame 3 is adjusted in advance by the length h32 of the connection portion 33 in the up-down direction (arrow Z direction).

[0045] 9, mounting holes 34 are formed on both the front and rear sides of the inner periphery 32 of the decorative frame 3. As shown in Fig. 11, the mounting holes 34 of the inner periphery 32 are provided to face the mounting holes 29 of the mounting plate 2 in the vertical direction (arrow Z direction), and the decorative frame 3 is attached to the mounting plate 2 by inserting the mounting fixture 4 from below the decorative frame 3 into the mounting holes 34 of the inner periphery 32 and screwing it into the mounting holes 29 of the mounting plate 2.

[0046] In this way, the mounting holes 34 of the fixtures 4 that attach the decorative frame 3 to the mounting plate 2 in the renewal plate 1 are provided in the inner peripheral portion 32 that is recessed from the outer peripheral portion 31 on the opposite side to the irradiated area (upper side in FIG. 11) in the decorative frame 3. As a result, when the lighting fixture 9 is attached to the recessed hole 201 in the ceiling material 200 to which the renewal plate 1 is attached, the fixtures 4 that connect the components of the renewal plate 1 are less visible to the user, improving the design. In FIG. 11, the irradiation port 92e of the lighting fixture 9 covers and hides the inner peripheral portion 32 and connection portion 33 of the decorative frame 3 from below.

[0047] As described above, the renewal plate 1 according to the first embodiment is attached to a mounting portion (e.g., ceiling material 200) having a recessed hole 201 formed therein, and supports a lighting fixture 9 to be placed in the recessed hole 201. The renewal plate 1 includes a plate-shaped decorative frame 3 that is placed on the design side of the mounting portion, and a mounting plate 2 to which the decorative frame 3 is attached, and that is placed on the side opposite the design side of the mounting portion. The decorative frame 3 is formed with a decorative frame opening 30 that communicates with the recessed hole 201. The mounting plate 2 is formed with a mounting plate opening 20a that communicates with the recessed hole 201 and the decorative frame opening 30, and has one or more positioning regions Ra, Rb, and Rc outside the mounting plate opening 20a, in which multiple positioning holes H1, H2, H3, H4, and H5 are formed. The renewal plate 1 also includes a positioning component 5 that is arranged in one or more positioning regions Ra, Rb, and Rc, and is inserted into one of a plurality of positioning holes H1, H2, H3, H4, and H5 in each positioning region to face an inner wall 202 of the embedding hole 201 in the mounting portion. The positioning holes H1, H2, H3, H4, and H5 have different radial distances (radii A1, A2, A3, A4, and A5) from the center of the mounting plate opening 20a that corresponds to the center C0 of the embedding hole 201 in the mounting plate 2. The positioning component 5 is inserted into the positioning hole that is arranged on the inner periphery of the embedding hole 201 and has the shortest distance from the inner wall 202 of the embedding hole 201 among the plurality of positioning holes H1, H2, H3, H4, and H5.

[0048] Thus, in the renewal plate 1, the mounting plate 2 has one or more positioning areas Ra, Rb, and Rc on the outside of the mounting plate opening 20a, where multiple positioning holes H1, H2, H3, H4, and H5 are formed. The renewal plate 1 also has positioning components 5 arranged in each of the one or more positioning areas Ra, Rb, and Rc, and inserted into one of the multiple positioning holes H1, H2, H3, H4, and H5 in each positioning area to face the inner wall 202 of the embedding hole 201 in the mounting portion. The multiple positioning holes H1, H2, H3, H4, and H5 have different radial distances (radii A1, A2, A3, A4, and A5) from the center of the mounting plate opening 20a, which corresponds to the center C0 of the embedding hole 201 on the mounting plate 2. Furthermore, the positioning component 5 is inserted into the positioning hole among the multiple positioning holes H1, H2, H3, H4, and H5 that is located on the inner periphery of the embedding hole 201 and that has the shortest distance from the inner wall 202 of the embedding hole 201. As a result, the positioning of the mounting plate 2 with respect to the embedding hole 201 can be achieved by the positioning hole H formed in the mounting plate 2 and the positioning component 5 inserted into the positioning hole H, so there is no need to change the length of the positioning component 5 or the method of forming the positioning hole H for each corresponding embedding hole diameter. Therefore, even when the number of compatible embedding hole diameters is increased, manufacturing is easy.

[0049] The plurality of positioning holes H1, H2, H3, H4, and H5 include a first positioning hole (e.g., positioning hole H1) and a second positioning hole (e.g., positioning hole H2) having a radial distance longer than that of the first positioning hole. The first positioning hole (positioning hole H1) and the second positioning hole (positioning hole H2) are provided at different positions in the circumferential direction.

[0050] In this way, by shifting the positions of the positioning holes H in the circumferential direction, the radial distance between the positioning holes H can be shortened, and therefore the renewal plate 1 can be made to accommodate multiple embedding hole diameters whose opening diameters are close to each other.

[0051] Furthermore, one or more positioning areas Ra, Rb, and Rc on the mounting plate 2 are provided to face the decorative frame 3. As a result, the multiple positioning holes H1, H2, H3, H4, and H5 formed on the mounting plate 2 are covered by the decorative frame 3, making them invisible to the user and preventing a decrease in design.

[0052] The decorative frame 3 also has an outer peripheral portion 31 and an inner peripheral portion 32 that is located more inward than the outer peripheral portion 31 and closer to the mounting plate 2, and the inner peripheral portion 32 has an attachment hole 34 formed therein into which an attachment fixture 4 is inserted to attach the decorative frame 3 to the mounting plate 2.

[0053] In this way, by forming the mounting hole 34 on the inner peripheral portion 32 of the decorative frame 3 on the side of the mounting plate 2, the mounting fixture 4 becomes less visible to the user when the lighting fixture 9 is attached, and deterioration of the design can be suppressed.

[0054] Various aspects of the present disclosure are described below.

[0055] (Appendix 1) A renewal plate that is attached to a mounting portion having a recessed hole formed therein and supports a lighting fixture to be placed in the recessed hole, a decorative frame having a plate-like shape, the decorative frame having a decorative frame opening communicating with the embedding hole, the decorative frame being disposed on a design side of the mounting portion; an attachment plate disposed on the opposite side of the design side of the attachment portion, to which the decorative frame is attached, the attachment plate having an attachment plate opening communicating with the embedding hole and the decorative frame opening, and one or more positioning regions having a plurality of positioning holes formed outside the attachment plate opening; a positioning component that is disposed in each of the one or more positioning regions, is inserted into one of the positioning holes in each positioning region, and faces an inner wall of the embedding hole in the mounting portion; the plurality of positioning holes have different radial distances from the center of the mounting plate opening that faces the center of the embedding hole when the mounting plate is attached to the mounting portion, The positioning component is inserted into one of the positioning holes that is located on the inner periphery of the embedding hole and has the shortest distance from the inner wall of the embedding hole. Renewal plate. (Appendix 2) the plurality of positioning holes include a first positioning hole and a second positioning hole having a radial distance that is longer than the radial distance of the first positioning hole; The first positioning hole and the second positioning hole are provided at different positions in the circumferential direction. Renewal plate as described in Appendix 1. (Appendix 3) The one or more positioning regions of the mounting plate are provided to face the decorative frame. A renewal plate as described in Appendix 1 or Appendix 2. (Appendix 4) the decorative frame has an outer circumferential portion and an inner circumferential portion disposed on the inner circumferential side of the outer circumferential portion and on the side of the mounting plate, The inner peripheral portion is formed with a mounting hole into which a mounting tool for mounting the decorative frame to the mounting plate is inserted. A renewal plate according to any one of appendices 1 to 3. [Explanation of symbols]

[0056] 1 renewal plate, 2 mounting plate, 2a right side portion, 2b front portion, 2c corner portion, 3 decorative frame, 4 mounting fixture, 5 positioning part, 9 lighting fixture, 20a mounting plate opening, 20c notch, 21 plate-shaped portion, 22 flange portion, 27 inner edge notch, 29 mounting hole, 30 decorative frame opening, 31 outer periphery, 32 inner periphery, 33 connection portion, 34 mounting hole, 35 decorative frame notch, 91 mounting spring, 91a spring base end, 91b spring tip portion, 91c spring connection portion, 92 reflective frame, 92e irradiation port, 92r mounting groove, 93 reflective frame flange, 94 main body portion, 100 lighting device, 200 ceiling material, 201 recessed hole, 201a opening edge, 202 inner wall, A1 radius, A2 Radius, A3 radius, A4 radius, A5 radius, C0 center, C1 circle, C2 circle, C3 circle, C4 circle, C5 circle, C201 circle, G clearance, H positioning hole, H1 positioning hole, H2 positioning hole, H3 positioning hole, H4 positioning hole, H5 positioning hole, h32 length, Ra positioning area, Rb positioning area, Rc positioning area.

Claims

1. A renewal plate that is attached to a mounting portion having a recessed hole formed therein and supports a lighting fixture to be placed in the recessed hole, a decorative frame having a plate-like shape, the decorative frame having a decorative frame opening communicating with the embedding hole, the decorative frame being disposed on a design side of the mounting portion; an attachment plate disposed on the opposite side of the attachment receiving portion from the design side, to which the decorative frame is attached, the attachment plate having an attachment plate opening communicating with the embedding hole and the decorative frame opening, and one or more positioning regions having a plurality of positioning holes formed outside the attachment plate opening; a positioning component disposed in each of the one or more positioning regions, inserted into one of the positioning holes in each positioning region, and facing an inner wall of the embedding hole in the mounting portion; the plurality of positioning holes have different radial distances from the center of the mounting plate opening that faces the center of the embedding hole when the mounting plate is attached to the mounting portion, The positioning component is inserted into one of the positioning holes that is located on the inner periphery of the embedding hole and has the shortest distance from the inner wall of the embedding hole. Renewal plate.

2. the plurality of positioning holes include a first positioning hole and a second positioning hole having a radial distance longer than the radial distance of the first positioning hole, The first positioning hole and the second positioning hole are provided at different positions in the circumferential direction. The renewal plate according to claim 1 .

3. The one or more positioning regions of the mounting plate are provided to face the decorative frame. The renewal plate according to claim 1 or 2.

4. the decorative frame has an outer circumferential portion and an inner circumferential portion disposed on the inner circumferential side of the outer circumferential portion and on the side of the mounting plate, The inner peripheral portion is formed with a mounting hole into which a mounting tool for mounting the decorative frame to the mounting plate is inserted. The renewal plate according to claim 1 or 2.

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