JP6706405B2 - Support device - Google Patents

Description

The present invention relates to a support device that supports a lighting fixture.

The renewal plate described in Patent Document 1 supports a lighting fixture. Specifically, the renewal plate has a mounting plate and a frame body. The mounting plate has an insertion hole and is arranged on the upper surface of the ceiling plate. The frame has an insertion hole and is arranged on the lower surface of the ceiling plate. The ceiling plate has a buried hole. The ceiling plate is sandwiched between the mounting plate and the frame body so that the embedded hole is located between the insertion hole of the mounting plate and the insertion hole of the frame body. Then, the lighting fixture is inserted into the insertion hole of the mounting plate and the insertion hole of the frame body. As a result, the luminaire is supported by the renewal plate by the elastic force of the mounting spring of the luminaire.

In the renewal plate, the mounting plate is positioned as follows. That is, the mounting plate has a plurality of positioning protrusions. The plurality of positioning protrusions are arranged at positions corresponding to the inner diameter of the embedding hole, and project downward toward the mounting plate. Therefore, the plurality of positioning protrusions engage with the inner peripheral surface of the buried hole. As a result, the mounting plate is positioned at a predetermined position in the embedding hole.

Japanese Patent No. 5623220

However, in the renewal plate described in Patent Document 1, the positioning protrusion is arranged corresponding to the embedded hole having a specific inner diameter. Therefore, when the inner diameter of a certain buried hole is larger than a specific inner diameter, the distance between the positioning protrusion and the inner peripheral surface of the buried hole becomes large. As a result, it is difficult to properly position the mounting plate. On the other hand, when the inner diameter of a certain embedded hole is smaller than a specific inner diameter, the positioning protrusion cannot enter the embedded hole. As a result, it is difficult to properly position the mounting plate.

That is, in order to properly position the mounting plate (plate) in the embedding hole (mounting hole), the restriction of the embedding hole is large.

The present invention has been made in view of the above problems, and an object thereof is to provide a support device capable of appropriately positioning a plate in a mounting hole while suppressing an increase in restrictions on the mounting hole.

The support device disclosed in the present application supports a lighting fixture. The supporting device includes a plate, a frame body including a collar portion, and a connecting portion. The plate includes a body. The main body is plate-shaped and has an outer edge and an inner edge. The plate further includes a plurality of first protrusions and a plurality of second protrusions. The first convex portion projects toward the side of the collar portion. The second convex portion is arranged between the outer edge of the main body portion and the first convex portion and protrudes toward the flange portion side. The distance between the body and the tip of the second protrusion is shorter than the distance between the body and the tip of the first protrusion. When positioning the plate in the first mounting hole, the plurality of first convex portions enter the first mounting hole, and the movement of the plate in the radial direction of the first mounting hole is performed by the plurality of first mounting holes. The plate is positioned in the first mounting hole by being regulated by the convex portion and by the plurality of first convex portions. When positioning the plate in a second mounting hole that is larger than the first mounting hole, the plurality of second convex portions enter the second mounting hole, and the plate is arranged in the radial direction of the second mounting hole. Movement is restricted by the plurality of second protrusions, and the plate is positioned in the second mounting hole by the plurality of second protrusions.

In the supporting device disclosed in the present application, it is preferable that the plate further includes a supporting portion that supports the frame via the connecting portion, and the supporting portion includes a first cutout portion. It is preferable that the connecting portion includes a rod-shaped member extending from the frame body and a screwing member screwed to the rod-shaped member. It is preferable that a side portion along the longitudinal direction of the rod-shaped member engages with the first cutout portion from a direction intersecting the longitudinal direction. Of the both ends of the threaded member, it is preferable that the ends of the rod-shaped member that are far from the tip end contact the support portion.

In the support device disclosed in the present application, it is preferable that the first cutout portion includes an engagement edge with which the rod-shaped member engages, and a pair of opposing edges that face each other. It is preferable that each of the pair of opposed edges extends from both ends of the engagement edge. It is preferable that the support part further includes at least one protrusion. The projecting portion projects from the support portion along the longitudinal direction of the rod-shaped member so as to be separated from the flange portion, and is adjacent to one of the pair of opposing edges. Is preferred.

In the supporting device disclosed in the present application, it is preferable that the supporting portion further includes a head portion. It is preferable that the head portion extends from the tip of the protrusion along the direction intersecting the longitudinal direction of the rod-shaped member so as to be separated from the engagement edge.

In the supporting device disclosed in the present application, it is preferable that the plate further includes a second cutout portion adjacent to the supporting portion. The second cutout portion is preferably formed in the body portion from the inner edge of the body portion toward the outer edge. It is preferable that the first cutout portion is open on the side of the second cutout portion.

In the supporting device disclosed in the present application, it is preferable that the frame body further includes a tubular portion that is erected from the flange portion. It is preferable that the rod-shaped member extends from a prescribed position farther from the central axis of the tubular portion than the inner surface of the tubular portion, and extends from the prescribed position closer to the central axis than the first convex portion. ..

In the supporting device disclosed in the present application, it is preferable that the frame body further includes a tubular portion that is erected from the flange portion. The collar portion preferably includes a recess. It is preferable that the recess be recessed from a main surface of the pair of main surfaces of the flange portion opposite to the main surface on the plate side toward the base end of the tubular portion.

In the supporting device disclosed in the present application, it is preferable that an outer edge of the collar portion has a quadrangular shape, and the frame body further includes a cylindrical tube portion that is erected from the collar portion. The collar portion preferably includes a raised portion. It is preferable that the raised portion is raised along the outer peripheral surface of the tubular portion from the main surface on the plate side of the pair of main surfaces of the collar portion. The outer edge of the raised portion is preferably circular.

In the supporting device disclosed in the present application, it is preferable that the collar portion further includes a convex edge portion. It is preferable that the convex edge portion is formed along an outer edge of the flange portion and projects from a main surface on the plate side of the pair of main surfaces of the flange portion.

In the supporting device disclosed in the present application, it is preferable that the main body portion further has a pair of edges. One edge of the pair of edges preferably extends from one of both ends of the outer edge to one of both ends of the inner edge. The other edge of the pair of edges preferably extends from the other edge of the outer edge to the other edge of the inner edge. It is preferable that the pair of end edges face each other and are separated from each other. It is preferable that the one edge is convexly curved toward the other edge, and the other edge is convexly curved toward the one edge.

According to the present invention, it is possible to properly position the plate in the mounting hole while suppressing an increase in restrictions on the mounting hole.

It is a perspective view showing a support device concerning Embodiment 1 of the present invention. 3 is a perspective view of the plate according to Embodiment 1 as viewed from below. FIG. 3 is a plan view of the plate according to Embodiment 1 as viewed from below. FIG. FIG. 3 is a side view showing a first convex portion and a second convex portion according to the first embodiment. (A) It is sectional drawing which shows the plate positioned by the 1st convex part which concerns on Embodiment 1. FIG. (B) It is sectional drawing which shows the plate positioned by the 2nd convex part which concerns on Embodiment 1. FIG. 3 is a perspective view of the plate according to Embodiment 1 as viewed from above. FIG. (A) It is the side view when the support part concerning Embodiment 1 is seen from the central axis side. FIG. 3B is a plan view of the support unit according to the first embodiment when viewed from above. FIG. 3 is a perspective view of the frame body and the connection portion according to the first embodiment when viewed from above. (A) It is sectional drawing which shows the frame body which concerns on Embodiment 1. (B) It is a top view when the frame body concerning Embodiment 1 is seen from below. FIG. 3 is a perspective view of the supporting device according to the first embodiment when viewed from above. FIG. 3 is a cross-sectional view showing the supporting device according to the first embodiment. FIG. 3 is a plan view of the supporting device according to the first embodiment when viewed from above. FIG. 3 is a cross-sectional view showing a support device and a lighting fixture according to the first embodiment. (A) (b) It is a figure which shows the procedure which attaches the supporting device which concerns on Embodiment 1 to a mounting plate. (A) (b) It is a figure which shows the procedure which attaches the supporting device which concerns on Embodiment 1 to a mounting plate. (A) (b) It is a figure which shows the procedure which attaches the supporting device which concerns on Embodiment 1 to a mounting plate. (A) It is a perspective view which shows the packing of the support apparatus which concerns on the modification of Embodiment 1. FIG. (B) It is sectional drawing which followed the XVII-XVII line of FIG. 17 (a). (A) It is a perspective view of the plate of the supporting device according to the second exemplary embodiment of the present invention when viewed from above. (B) It is a top view when the support part concerning Embodiment 2 is seen from the upper part. It is a perspective view when the frame of the support device concerning Embodiment 3 of the present invention is seen from the upper part. FIG. 9 is a perspective view of the frame body according to the third embodiment when viewed from below. It is a perspective view when the plate of the support device concerning Embodiment 4 of the present invention is seen from above.

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or corresponding parts will be denoted by the same reference symbols and description thereof will not be repeated. Further, in the present specification, the X axis and the Y axis of the three-dimensional orthogonal coordinate system are parallel to the horizontal line, and the Z axis is parallel to the vertical line. The positive direction of the Z axis is the direction opposite to the direction of gravity, indicating the upward direction, and the negative direction of the Z axis is the direction of gravity, indicating the downward direction.

(Embodiment 1)
FIG. 1 is a perspective view showing a supporting device 1 according to the first embodiment of the present invention. As shown in FIG. 1, the supporting device 1 is attached to a mounting plate A such as a ceiling plate. And the support apparatus 1 supports a lighting fixture. That is, the lighting fixture is attached to the support device 1. As a result, the lighting fixture is attached to the attachment plate A via the support device 1. The lighting equipment is, for example, a downlight.

Specifically, the support device 1 includes a plate 3, a frame body 5, and a plurality of connecting portions 7 (two connecting portions 7 in the first embodiment). The plate 3 includes a plurality of support parts 15 (two support parts 15 in the first embodiment). The frame body 5 includes a collar portion 21 and a tubular portion 22. The connecting portion 7 includes a bolt 41 as a rod-shaped member and a nut 42 as a screwing member. The plate 3, the frame 5, and the connecting portion 7 are made of metal, for example.

The plate 3 is arranged on the upper surface AU of the mounting plate A. The connecting portion 7 is fixed to the frame body 5. Then, the frame body 5 and the connecting portion 7 are moved in the upward direction D1 from the lower surface AL side so that the connecting portion 7 and the tubular portion 22 penetrate the mounting hole B of the mounting plate A. The mounting hole B has a substantially circular shape. Further, the frame body 5 and the connecting portion 7 are rotated in the rotation direction D2. Further, the frame body 5 and the connecting portion 7 are moved in the downward direction D3 by their own weight. When the connecting portion 7 comes into contact with the supporting portion 15, the supporting portion 15 supports the frame body 5 via the connecting portion 7, and the connecting portion 7 connects the plate 3 and the frame body 5. Further, when the nut 42 is rotated, the frame body 5 moves in the upward direction D1 and the flange portion 21 comes into contact with the lower surface AL of the mounting plate A. As a result, the mounting plate A is sandwiched between the plate 3 and the flange portion 21, and the supporting device 1 is mounted on the mounting plate A. The upper surface AU is, for example, a surface on the back side of the ceiling, and the lower surface AL is, for example, a surface on the indoor side.

Next, the plate 3 will be described with reference to FIGS. FIG. 2 is a perspective view of the plate 3 as viewed from below. FIG. 3 is a plan view of the plate 3 as viewed from below.

As shown in FIGS. 2 and 3, the plate 3 further includes a body portion 9. The main body portion 9 has a substantially C shape and a substantially plate shape. The main body 9 has a substantially arc-shaped outer edge 9a, a substantially arc-shaped inner edge 9b, and a pair of end edges 9c. The outer edge 9a is substantially C-shaped. The inner edge 9b is substantially C-shaped.

One end 9c of the pair of ends 9c extends from one end of the outer edge 9a to one end of the inner edge 9b. The other edge 9c of the pair of edges 9c extends from the other edge of the outer edge 9a to the other edge of the inner edge 9b.

The pair of end edges 9c face each other and are separated from each other. Then, the one end edge 9c is curved in a convex shape toward the other end edge 9c. The other edge 9c is convexly curved toward the one edge 9c. Each of the end edges 9c has a substantially curved shape.

Each of the end edges 9c includes a substantially arc-shaped first edge 13a and a substantially arc-shaped second edge 13b. The first edge 13a is formed between the outer edge 9a and the second edge 13b. The second edge 13b is formed between the inner edge 9b and the first edge 13a. The curvature of the second edge 13b is smaller than the curvature of the first edge 13a.

The plate 3 has a first opening OP1 and a second opening OP2. Specifically, the inner edge 9b defines the first opening OP1. The pair of edges 9c define the second opening OP2. The second opening OP2 communicates with the first opening OP1.

The plate 3 includes a plurality of first protrusions 11 (four first protrusions 11 in the first embodiment) and a plurality of second protrusions 12 (four second protrusions 12 in the first embodiment). Further includes.

The 1st convex part 11 is formed in the main-body part 9, and is substantially plate-shaped. Specifically, as shown in FIG. 4, the first protrusion 11 extends from the main body 9 so as to project from the lower surface 9 e of the main body 9. The first convex portion 11 forms a substantially right angle with the main body portion 9. Two first protrusions 11 of the plurality of first protrusions 11 face each other, and the other two first protrusions 11 face each other. As shown in FIG. 2, the plurality of first convex portions 11 are arranged on the first circumference CK1. As shown in FIG. 3, the plurality of first convex portions 11 are arranged along the edge of the mounting hole B1 having a substantially circular shape. The mounting hole B1 is formed in a mounting plate such as a ceiling plate. The 1st convex part 11 is arrange|positioned rather than the wall surface b1 which defines the attachment hole B1 in the radial direction of the plate 3.

The 2nd convex part 12 is formed in the main-body part 9, and is substantially plate-shaped. Specifically, as shown in FIG. 4, the second convex portion 12 projects from the lower surface 9e of the main body portion 9. The second protrusion 12 is inclined with respect to the main body 9 so as to form an acute angle with the main body 9. The plurality of second protrusions 12 face the plurality of first protrusions 11, respectively. As shown in FIG. 2, the plurality of second convex portions 12 are arranged on the second circumference CK2. As shown in FIG. 3, the plurality of second convex portions 12 are arranged along the edge of the mounting hole B2 having a substantially circular shape. The mounting hole B2 is formed in a mounting plate such as a ceiling plate. The radius r2 of the mounting hole B2 (diameter example: 2×r2=150 mm) is larger than the radius r1 of the mounting hole B1 (diameter example: 2×r1=125 mm). The 2nd convex part 12 is arrange|positioned rather than the wall surface b2 which defines the attachment hole B2 in the radial direction of the plate 3.

2 and 3, the first convex portion 11 and the second convex portion 12 will be described in association with each other. The second protrusion 12 is arranged between the outer edge 9 a of the main body 9 and the first protrusion 11. The distance R2 from the central axis AX1 of the plate 3 to the second convex portion 12 is longer than the distance R1 from the central axis AX1 to the first convex portion 11. The distance R2 indicates the radius R2 of the second circumference CK2, and the distance R1 indicates the radius R1 of the first circumference CK1. Therefore, the radius R2 of the second circumference CK2 is larger than the radius R1 of the first circumference CK1. The 1st convex part 11 is arrange|positioned rather than the inner edge 9b in the radial direction outer side of the plate 3. The second convex portion 12 is arranged radially outside the plate 3 with respect to the first convex portion 11. The central axis line AX1 indicates the central axis line of the first opening OP1.

With reference to FIG. 4, the 1st convex part 11 and the 2nd convex part 12 are demonstrated continuously. FIG. 4 is a side view showing the first convex portion 11 and the second convex portion 12. In FIG. 4, the 1st convex part 11 and the 2nd convex part 12 are seen from the direction D4 shown in FIG. 2 and FIG. Further, in FIG. 4, the flange portion 21 of the frame body 5 is illustrated for convenience of description.

As shown in FIG. 4, each of the first convex portion 11 and the second convex portion 12 projects from the main body portion 9 toward the collar portion 21 of the frame body 5. The collar portion 21 is arranged below the main body portion 9. The second convex portion 12 is inclined toward the flange portion 21 so as to form an acute angle θ with the main body portion 9.

The distance H2 between the lower surface 9e of the main body 9 and the tip of the second convex portion 12 (hereinafter, referred to as "second protrusion length H2") is equal to the distance between the lower surface 9e of the main body 9 and the tip of the first convex portion 11. Is shorter than the interval H1 (hereinafter, referred to as “first protrusion length H1”). The second protrusion length H2 is, for example, approximately ½ of the first protrusion length H1. In other words, the first protrusion length H1 indicates the length from the lower surface 9e to the tip of the first convex portion 11 along the direction substantially orthogonal to the lower surface 9e. The second protrusion length H2 indicates the length from the lower surface 9e to the tip of the second convex portion 12 along the direction substantially orthogonal to the lower surface 9e.

The positioning of the plate 3 by the first convex portion 11 and the second convex portion 12 will be described with reference to FIG.

FIG. 5A is a sectional view showing the plate 3 positioned by the first convex portion 11. As shown in FIG. 5A, a mounting hole B1 is formed in the mounting plate A. When positioning the plate 3 in the small-diameter mounting hole B1, the plate 3 is positioned in the mounting hole B1 by the plurality of first convex portions 11. Specifically, the plurality of first convex portions 11 enter the mounting hole B1. Therefore, the movement of the plate 3 in the radial direction of the mounting hole B1 is restricted by the plurality of first convex portions 11 and the wall surface b1. As a result, the plate 3 is positioned in the mounting hole B1. In this case, the plurality of second protrusions 12 are in contact with the upper surface AU.

FIG. 5B is a sectional view showing the plate 3 positioned by the second convex portion 12. As shown in FIG. 5B, a mounting hole B2 is formed in the mounting plate A. When positioning the plate 3 in the large-diameter mounting hole B2, the plate 3 is positioned in the mounting hole B2 by the plurality of second protrusions 12. Specifically, the plurality of second protrusions 12 enter the mounting hole B2. Therefore, the movement of the plate 3 in the radial direction of the mounting hole B2 is restricted by the plurality of second convex portions 12 and the wall surface b1. As a result, the plate 3 is positioned in the mounting hole B2.

Hereinafter, the mounting hole B1 and the mounting hole B2 may be collectively referred to as the mounting hole B.

As described with reference to FIGS. 5A and 5B, according to the first embodiment, the first convex portion 11 and the second convex portion 12 are formed according to the size of the diameter of the mounting hole B. You can choose either. Therefore, the plate 3 can be appropriately positioned in the mounting hole B by either the first convex portion 11 or the second convex portion 12 depending on the diameter of the mounting hole B. That is, it is possible to prevent the restriction of the mounting hole B that fits the plate 3 from increasing.

The second protrusion length H2 is shorter than the first protrusion length H1. Therefore, as compared with the case where the second protrusion length H2 is equal to the first protrusion length H1 and the case where the second protrusion length H2 is longer than the first protrusion length H1, the first protrusion 11 is reliably inserted into the mounting hole B1. it can. As a result, the plate 3 can be more appropriately positioned in the small-diameter mounting hole B1 by using the first convex portion 11.

In addition, when the second protrusion length H2 is equal to the first protrusion length H1 or when the second protrusion length H2 is longer than the first protrusion length H1, the second protrusion 12 may contact the upper surface AU, There is a possibility that the first convex portion 11 may be difficult to be sufficiently inserted into the small-diameter mounting hole B1. Even in these cases, depending on the environment, it is possible to properly position the plate 3 in the mounting hole B1, but by making the second protruding length H2 shorter than the first protruding length H1, the plate 3 is mounted in the mounting hole B1. B1 can be positioned more appropriately.

Further, since the second protrusion length H2 is shorter than the first protrusion length H1, compared with the case where the second protrusion length H2 is equal to the first protrusion length H1 and the case where the second protrusion length H2 is longer than the first protrusion length H1. Thus, the gap between the main body 9 of the plate 3 and the upper surface AU of the mounting plate A can be narrowed. Therefore, when removing the lighting fixture from the mounting plate A and the support device 1, it is possible to make it difficult for part of the lighting fixture to enter the gap. As a result, the lighting fixture can be easily removed from the mounting plate A and the support device 1.

A specific example in which the lighting fixture can be easily removed will be described. The lighting fixture is attached to the attachment plate A as a ceiling plate via the support device 1. The luminaire is a downlight with a separate power supply. Specifically, the lighting fixture includes a fixture main body having a light source and a power supply unit. The device main body and the power supply unit are arranged in a direction substantially parallel to the upper surface AU of the mounting plate A and separated by a predetermined distance. Further, the base of the power supply unit is installed on the upper surface AU. The base portion has a flat plate-shaped contact portion that is substantially parallel to the upper surface AU. The contact portion is in contact with the upper surface AU.

When the lighting fixture is removed from the mounting plate A and the support device 1, it is necessary to pull out the power supply unit installed on the upper surface AU of the mounting plate A from the mounting hole B1. On the other hand, the second protrusion length H2 is made shorter than the first protrusion length H1 to narrow the gap between the main body 9 and the upper surface AU. Therefore, when removing the lighting fixture, it is possible to make it difficult for the contact portion of the base portion of the power supply unit to be caught in the gap. As a result, the lighting fixture can be easily removed from the mounting plate A and the support device 1.

When the second protrusion 12 is in contact with the upper surface AU as shown in FIG. 5A, if the plate 3 and the frame body 5 are connected by the connecting portion 7 as shown in FIG. By the tightening by the connecting portion 7, a force for returning the second convex portion 12 to the main body portion 9 side acts on the second convex portion 12 from the mounting plate A, and the second convex portion 12 is elastically deformed. Therefore, the second protrusion length H2 is shorter than that before the connection by the connecting portion 7. As a result, the gap between the main body portion 9 and the upper surface AU can be further narrowed, and the contact portion of the base portion can be further suppressed from being caught in the gap.

Further, since the plate 3 receives a load from the lighting fixture, the force for returning the second convex portion 12 to the main body portion 9 side further acts on the second convex portion 12 from the mounting plate A. Therefore, the second protrusion length H2 becomes shorter than that before the mounting of the lighting fixture. As a result, the gap between the main body portion 9 and the upper surface AU can be further narrowed, and the contact portion of the base portion can be further suppressed from being caught in the gap.

Next, the plate 3 will be described with reference to FIG. 6. FIG. 6 is a perspective view of the plate 3 as viewed from above. As shown in FIG. 6, a first marker 16 is attached to the upper surface 9d of the main body 9. In the first embodiment, the first marker 16 has a substantially triangular shape and is stamped on the main body 9. The first marker 16 is a mark when the lighting fixture is attached to the support device 1.

Each of the support portions 15 includes a wall portion 6a, a contact portion 6b, two protruding portions 6c, two head portions 6d, and a first cutout portion 6e. The wall portion 6a, the contact portion 6b, the protruding portion 6c, and the head portion 6d are substantially plate-shaped.

The wall portion 6a extends from the inner edge 9b of the main body portion 9 along the central axis AX1 so as to project from the upper surface 9d of the main body portion 9. The wall portion 6 a forms a substantially right angle with the main body portion 9. The contact portion 6b extends from the leading edge of the wall portion 6a toward the central axis line AX1 along a direction substantially orthogonal to the central axis line AX. The contact portion 6b forms a substantially right angle with the wall portion 6a.

The protruding portion 6c extends along the central axis AX1 so as to protrude from the upper surface of the contact portion 6b. The protrusion 6c forms a substantially right angle with the contact portion 6b. The head portion 6d extends from the tip edge of the protruding portion 6c in a direction substantially orthogonal to the central axis AX1. The tip edge of the head portion 6d is curved. The head portion 6d forms a substantially right angle with the protruding portion 6c. The pair of first cutouts 6e are open in the predetermined circumferential direction D5 of the plate 3. The predetermined circumferential direction D5 is opposite to the rotation direction D2 (FIG. 1).

The main body portion 9, the contact portion 6b, and the head portion 6d are substantially parallel to each other and substantially parallel to the horizontal line. The wall portion 6a and the protruding portion 6c are substantially parallel to the vertical line.

With reference to FIG. 7, the support portion 15 will be continuously described. FIG. 7A is a plan view of the supporting portion 15 when viewed from above. In FIG. 7A, the bolt 41 of the connection portion 7 is illustrated for convenience of description. However, the head of the bolt 41 is omitted for simplification of the drawing. FIG. 7B is a side view of the supporting portion 15 as viewed from the side of the central axis AX1. In FIG. 7B, the connecting portion 7 connects the plate 3 and the frame body 5.

As shown in FIG. 7A, the first cutout portion 6e includes an engagement edge 8a and a pair of opposing edges 8b. The bolt 41 is engaged with the engaging edge 8a. The pair of facing edges 8b face each other. The pair of opposed edges 8b respectively extend from both ends of the engagement edge 8a.

As shown in FIGS. 7A and 7B, one protrusion 6c of the pair of protrusions 6c is adjacent to one opposite edge 8b of the pair of opposite edges 8b. The other protruding portion 6c is adjacent to the other facing edge 8b. Each of the protrusions 6c is formed at the front end of the contact portion 6b in the predetermined circumferential direction D5. Each of the projecting portions 6 c projects from the abutting portion 6 b along the longitudinal direction of the bolt 41 so as to be separated from the flange portion 21. The longitudinal direction of the bolt 41 is substantially parallel to the central axis AX1.

The pair of head portions 6d are respectively separated from the engaging edge 8a along a direction intersecting the longitudinal direction of the bolt 41 (in Embodiment 1, a direction substantially orthogonal to the longitudinal direction of the bolt 41). It extends from the tip of the protrusion 6c.

The plate 3 further includes a second cutout portion 17. The second cutout portion 17 is adjacent to the support portion 15. The second cutout portion 17 is formed in the body portion 9 from the inner edge 9b of the body portion 9 toward the outer edge 9a. The second cutout portion 17 is arranged in front of the support portion 15 in the predetermined circumferential direction D5. Then, the first cutout portion 6e is open to the second cutout portion 17 side.

Next, the connecting portion 7 will be described with reference to FIG. FIG. 8 is a perspective view of the frame body 5 and the connecting portion 7 when viewed from above. In FIG. 8, the support portion 15 is indicated by a two-dot chain line for convenience of explanation. As shown in FIG. 8, the pair of connecting portions 7 face each other. The bolt 41 extends from the frame body 5 along the central axis AX2 of the frame body 5. The side portion along the longitudinal direction of the bolt 41 extends from the direction intersecting the longitudinal direction of the bolt 41 (in the first embodiment, a direction substantially orthogonal to the longitudinal direction of the bolt 41) to the first cutout portion 6e of the support portion 15. Engage. The longitudinal direction of the bolt 41 is substantially parallel to the central axis line AX2. The central axis line AX2 indicates the central axis line of the tubular portion 22.

The nut 42 is screwed onto the bolt 41. The nut 42 moves upward on the bolt 41 by, for example, clockwise rotation. On the other hand, the nut 42 moves downward on the bolt 41 due to, for example, counterclockwise rotation. The nut 42 has a substantially cylindrical shape. The nut 42 is, for example, a knurled nut.

Next, the frame 5 will be described with reference to FIGS. 8 and 9. As shown in FIG. 8, the frame body 5 further includes a pair of base portions 28 corresponding to the pair of connecting portions 7. The pair of bases 28 face each other. The base portion 28 is arranged at the boundary between the collar portion 21 and the tubular portion 22. The bolt 41 extends from the base portion 28 so as to be separated from the collar portion 21.

The tubular portion 22 has a substantially tubular shape (in the first embodiment, a substantially cylindrical shape), and has a substantially circular opening OP3. The tubular portion 22 defines the opening OP3. The tubular portion 22 is erected from the inner edge of the collar portion 21. The tubular portion 22 includes a pair of notches 30 corresponding to the pair of connecting portions 7. The cutout portion 30 has a substantially U shape and faces the connecting portion 7. The notch 30 is formed from the front end edge of the tubular portion 22 toward the base end edge.

FIG. 9A is a cross-sectional view showing the frame body 5. In FIG. 9A, the plate 3 and the lighting fixture 100 are indicated by a chain double-dashed line for convenience of description. FIG. 9B is a plan view of the frame body 5 as viewed from below.

As shown in FIG. 8 and FIG. 9A, the collar portion 21 has a substantially annular shape (in the first embodiment, a substantially annular shape) and a substantially plate shape. Therefore, the outer edge of the collar 21 is substantially circular.

The collar portion 21 includes a convex edge portion 24, a raised portion 26, and a concave portion 32. The convex edge portion 24 is formed along the outer edge of the collar portion 21 and has a substantially circular shape. The convex edge portion 24 projects from the upper surface 21 a of the collar portion 21. The upper surface 21 a indicates the main surface on the plate 3 side of the pair of main surfaces of the collar portion 21. The raised portion 26 is raised from the upper surface 21a of the flange portion along the outer peripheral surface 22a of the tubular portion 22. The outer edge of the raised portion 26 has a substantially circular shape.

As shown in FIGS. 9A and 9B, the recess 32 is recessed from the lower surface 21 b of the flange 21 toward the base end of the tubular portion 22. The lower surface 21b indicates a main surface opposite to the main surface on the plate 3 side of the pair of main surfaces of the collar portion 21. The recess 32 has a substantially annular shape in a plan view. The recess 32 is provided with a second marker 34 corresponding to the first marker 16 (FIG. 6) of the plate 3. In the first embodiment, the second marker 34 has a substantially triangular shape and is stamped on the recess 32. The second marker 34 is a mark when the lighting fixture 100 is attached to the support device 1.

When the lighting fixture 100 is inserted into the tubular portion 22, the flange portion 102 of the lighting fixture 100 fits into the recess 32. The collar portion 102 has a substantially annular shape. The tubular portion 22 extends toward the plate 3 side.

Next, with reference to FIGS. 10 to 12, the plate 3, the frame body 5, and the connecting portion 7 will be described in association with each other. FIG. 10 is a perspective view of the supporting device 1 when viewed from above. FIG. 11 is a cross-sectional view showing the supporting device 1. FIG. 12 is a plan view of the supporting device 1 when viewed from above. 10 and 12, the mounting plate A is omitted for simplification of the drawings. Further, in FIG. 12, the head of the bolt 41 and the nut 42 are omitted for simplification of the drawing.

As shown in FIGS. 10 and 11, the lower end 42 a of the nut 42 of the connecting portion 7 contacts the contact portion 6 b of the support portion 15. The lower end 42a indicates one of the two ends of the nut 42 in the longitudinal direction, which is far from the tip of the bolt 41. When the nut 42 is tightened, the frame body 5 is pulled up in the upward direction D1, and the main body portion 9 of the plate 3 and the flange portion 21 of the frame body 5 strongly clamp the mounting plate A with the mounting plate A interposed therebetween. As a result, the support device 1 is attached to the attachment plate A. In this case, the convex edge portion 24 of the collar portion 21 contacts the lower surface AL of the mounting plate A.

As shown in FIGS. 11 and 12, the base portion 28 of the frame body 5 is arranged at a prescribed position P farther from the central axis AX2 of the tubular portion 22 than the inner peripheral surface 22b (inner surface) of the tubular portion 22. That is, the base portion 28 is arranged radially outside the tubular portion 22 with respect to the inner peripheral surface 22b of the tubular portion 22.

The bolt 41 of the connecting portion 7 extends from a specified position P farther from the central axis AX2 than the inner peripheral surface 22b of the tubular portion 22. That is, the bolt 41 is arranged radially outside the tubular portion 22 with respect to the inner peripheral surface 22b of the tubular portion 22. Specifically, the distance L1 between the central axis AX2 and the bolt 41 is longer than the distance L2 between the central axis AX2 and the inner peripheral surface 22b of the tubular portion 22.

Further, the bolt 41 extends from the specified position P closer to the central axis AX2 than the first convex portion 11. That is, the bolt 41 is arranged radially inside the tubular portion 22 with respect to the first convex portion 11. Specifically, the distance L1 is shorter than the distance L3 between the central axis AX2 and the first convex portion 11.

The nut 42 is screwed into the bolt 41 so as not to project to the side of the central axis AX2 with respect to the inner peripheral surface 22b of the tubular portion 22. That is, the nut 42 is arranged radially outside the tubular portion 22 with respect to the inner peripheral surface 22b of the tubular portion 22. The central axis AX2 substantially coincides with the central axis AX1.

Next, the support device 1 and the lighting fixture 100 will be described with reference to FIG. 13. FIG. 13 is a cross-sectional view showing the support device 1 and the lighting fixture 100.

As shown in FIG. 13, the tubular portion 22 of the supporting device 1 is inserted into the mounting hole B, and the supporting device 1 is mounted on the mounting plate A. The support device 1 supports the lighting fixture 100.

The luminaire 100 emits light. The lighting fixture 100 is, for example, a downlight. The lighting fixture 100 includes a fixture body 104, a power supply unit 106, and a plurality of mounting springs 110 (two mounting springs 110 in the first embodiment).

The instrument body 104 includes a light source 108. The light source 108 includes, for example, a single or a plurality of LEDs (Light Emitting Diodes). The instrument body 104 also includes a generally annular collar portion 102. The power supply unit 106 supplies power to the light source 108. As a result, the light source 108 is turned on. The mounting spring 110 is made of elastic metal and has a substantially V shape. The mounting spring 110 is fixed to the instrument body 104.

When the lighting fixture 100 is inserted into the opening OP3 of the tubular portion 22, the mounting spring 110 comes into contact with the tip edge portion of the tubular portion 22. Then, due to the elasticity of the mounting spring 110, the cylindrical portion 22 is tightened by the mounting spring 110 and the flange portion 102. As a result, the lighting fixture 100 is attached to the support device 1, and the support device 1 supports the lighting fixture 100. Since the supporting device 1 is mounted on the mounting plate A, the lighting fixture 100 is mounted on the mounting plate A via the supporting device 1.

Next, a procedure for attaching the support device 1 to the attachment plate A will be described with reference to FIGS. 14 to 16. 14(a), FIG. 14(b), FIG. 15(a), FIG. 15(b), FIG. 16(a), and FIG. 16(b) show a procedure for attaching the supporting device 1 to the attachment plate A. It is a figure.

First, as shown in FIG. 14A, the operator inserts the plate 3 into the mounting hole B in the upward direction D1 from the one edge 9c of the plate 3. FIG. 14A shows a perspective view of the mounting plate A and the plate 3 as seen from below.

Next, as shown in FIG. 14B, the operator inserts the plate 3 from the mounting hole B toward the upper direction D1. FIG. 14B shows a perspective view of the mounting plate A and the plate 3 as seen from above.

Next, as shown in FIG. 15A, the operator places the plate 3 on the upper surface AU of the mounting plate A and mounts the plate 3 on the mounting hole B by the first convex portion 11 or the second convex portion 12. To position. In FIG. 15A, the plate 3 is positioned in the mounting hole B by the first protrusion 11.

Next, the operator moves the frame body 5 to which the connecting portion 7 is fixed below the mounting hole B. In this case, the worker loosens the nut 42. That is, the nut 42 is moved upward on the bolt 41.

Next, the operator moves the frame body 5 in the upward direction D1 and inserts the connecting portion 7 and the tubular portion 22 into the mounting hole B until the lower end 42a of the nut 42 is located above the head portion 6d. To do. In this case, the worker inserts the connecting portion 7 into the mounting hole B while making the connecting portion 7 face the second cutout portion 17.

As a result, as shown in FIG. 15B, the tubular portion 22 is inserted into the mounting hole B so that the connecting portion 7 faces the support portion 15 and the second cutout portion 17. Specifically, the bolt 41 faces the support portion 15 and the second cutout portion 17. Further, the collar portion 21 is arranged on the lower surface AL of the mounting plate A.

Next, the operator rotates the frame body 5 in the rotation direction D2 until the nut 42 passes above the head portion 6d. Then, as shown in FIG. 16A, the operator engages the bolt 41 with the first cutout portion 6e.

Next, the worker moves the frame body 5 in the downward direction D3. Then, as shown in FIG. 16B, the lower end 42a of the nut 42 contacts the contact portion 6b. As a result, the frame body 5 is supported by the support portion 15 via the connection portion 7. That is, the frame body 5 is hung on the support portion 15 by the weight of the frame body 5. That is, the frame body 5 is temporarily fixed.

Next, the worker tightens the nut 42. Specifically, since the position of the nut 42 along the vertical direction is constant by the contact portion 6b, when the nut 42 is tightened, the frame body 5 is pulled up. Therefore, the main body portion 9 of the plate 3 and the flange portion 21 of the frame body 5 strongly tighten the mounting plate A. As a result, the support device 1 is attached to the attachment plate A.

As described above with reference to FIGS. 1 to 5, according to the supporting device 1 according to the first embodiment, the mounting hole B has a large restriction because it includes the first convex portion 11 and the second convex portion 12. While suppressing this, the plate 3 can be appropriately positioned in the mounting hole B.

Specifically, as described with reference to FIGS. 2 to 4, the second protrusion 12 of the plate 3 is arranged between the outer edge 9 a of the main body 9 and the first protrusion 11. Therefore, as shown in FIGS. 5(a) and 5(b), the plate 3 can be positioned by the first convex portion 11 for the small-diameter mounting hole B1, and for the large-diameter mounting hole B2. The plate 3 can be positioned by the second convex portion 12. In other words, the number of mounting holes B that fit the plate 3 is larger than in the conventional case, and it is possible to suppress the restriction of the mounting holes B from increasing.

In addition, the first protrusion 11 can be used to properly position the plate 3 in the small-diameter mounting hole B1, and the second protrusion 12 can be used to properly position the plate 3 in the large-diameter mounting hole B2. it can.

In addition, as described with reference to FIGS. 4, 5A, and 5B, the second protrusion length H2 is shorter than the first protrusion length H1. Therefore, the first convex portion 11 can be surely inserted into the mounting hole B1, so that the plate 3 can be more appropriately positioned in the small-diameter mounting hole B1 by the first convex portion 11. Further, since it is possible to suppress a part of the lighting fixture from entering the gap, the lighting fixture can be easily removed from the mounting plate A and the support device 1.

Further, as described with reference to FIGS. 1 to 5, according to the first embodiment, the four first convex portions 11 and the four second convex portions 12 are provided. However, two first convex portions 11 and two second convex portions 12 may be provided. Even in this case, the plate 3 can be appropriately positioned in the substantially circular mounting hole B. Even when the two first convex portions 11 and the two second convex portions 12 are provided, the plate 3 can be positioned in the mounting hole having a substantially square shape, but the four first convex portions 11 and It is preferable to provide two second convex portions 12. In this case, since the four first convex portions 11 or the four second convex portions 12 can correspond to the four sides of the mounting hole, the mounting hole B is not limited to the substantially circular mounting hole B, but the substantially rectangular mounting hole. Also, the plate 3 can be properly positioned.

Furthermore, as described with reference to FIG. 3, according to the first embodiment, the pair of end edges 9c of the plate 3 are curved in a convex shape. Therefore, when the plate 3 is inserted into the mounting hole B, the plate 3 abuts on the peripheral edge of the mounting hole B as compared with the case where the pair of edges are linear and both ends of the plate have corners. Can be suppressed (FIGS. 14A and 14B). As a result, the plate 3 can be easily arranged on the upper surface AU of the mounting plate A. Further, the operator can place the plate 3 on the upper surface AU of the mounting plate A with one hand.

In addition, when the pair of edges is linear and both ends of the plate have corners, in order to prevent the plate from hitting the peripheral edge of the mounting hole B, the interval between the pair of edges is increased. There is a need. The larger the distance between the pair of edges, the smaller the surface area of the plate. Therefore, when the plate is arranged on the upper surface AU of the mounting plate A, the contact area between the plate and the upper surface AU becomes small.

However, according to the first embodiment, by curving the pair of end edges 9c in a convex shape, it is possible to prevent the surface area of the plate 3 from becoming small and prevent the plate 3 from hitting the peripheral edge of the mounting hole B. ing. Therefore, when the plate 3 is arranged on the upper surface AU of the mounting plate A, it is possible to prevent the contact area between the plate 3 and the upper surface AU from being reduced (FIG. 15A). As a result, the posture of the plate 3 becomes stable, and thus the posture of the lighting fixture 100 supported by the support device 1 becomes stable.

Further, when the plate 3 is inserted into the mounting hole B, the second edge 13b on the inner edge 9b side of the edge 9c is more likely to come into contact with the peripheral edge of the mounting hole B than the first edge 13a on the outer edge 9a side. there is a possibility. Therefore, the curvature of the second edge 13b is made smaller than the curvature of the first edge 13a. Therefore, according to the first embodiment, it is possible to further suppress the plate 3 from hitting the peripheral edge of the mounting hole B. Further, the surface area of the plate 3 can be further increased by increasing the curvature of the first edge 13a. As a result, the posture of the plate 3 is further stabilized, and by extension, the posture of the lighting fixture 100 supported by the support device 1 is further stabilized.

Further, as described with reference to FIGS. 6, 7A, 7B, and 10, according to the first embodiment, the lower end 42a of the nut 42 has the abutting portion 6b of the supporting portion 15. Abut. Therefore, the frame body 5 can be temporarily fixed as described with reference to FIG. Therefore, even if the operator releases his hand, the frame body 5 does not fall. As a result, the operator can tighten the nut 42 with one hand without supporting the frame body 5 by hand. Further, since the frame body 5 is temporarily fastened, the worker can tighten the nut 42 with one hand.

Furthermore, as described with reference to FIG. 6, FIG. 7A, and FIG. 7B, according to the first embodiment, each of the supporting portions 15 includes the protruding portion 6c. Therefore, when the frame 5 is temporarily fastened to the support portion 15 (FIG. 16B), even when the bolt 41 moves due to vibration or the like, the nut 42 comes into contact with the protruding portion 6c. As a result, the bolt 41 can be prevented from coming off from the first cutout portion 6e of the support portion 15, and by extension, the frame body 5 can be prevented from dropping.

Further, after the nut 42 is tightened and the support device 1 is attached to the attachment plate A, the nut 42 may loosen. Then, a force that rotates the frame body 5 due to vibration or the like may act on the frame body 5. In this case, even when the bolt 41 moves, the nut 42 contacts the protrusion 6c. As a result, it is possible to prevent the bolt 41 from coming off from the first cutout portion 6e of the support portion 15, and thus to prevent the frame body 5 from dropping.

Furthermore, as described with reference to FIGS. 6, 7A, and 7B, according to the first embodiment, each of the support portions 15 includes the head portion 6d. Therefore, when the worker tightens the nut 42 (FIG. 16B), it is possible to prevent the worker's finger from hitting the protrusion 6c. As a result, the operator can easily tighten the nut 42. The tip edge of the head portion 6d is curved. Therefore, as compared with the case where the head portion has the corner portion, the worker can smoothly tighten the nut 42 even when the operator's finger hits the head portion 6d.

Furthermore, as described with reference to FIGS. 7A and 7B, according to the first embodiment, the plate 3 includes the second cutout portion 17. Therefore, when the connecting portion 7 is inserted into the mounting hole B (FIG. 15A) or the bolt 41 is engaged with the first cutout portion 6e (FIG. 15B), the nut 42 contacts the plate 3. Can be suppressed. As a result, the plate 3 and the frame body 5 can be easily connected by the connecting portion 7.

Further, as described with reference to FIGS. 6 and 9B, according to the first embodiment, the plate 3 is provided with the first marker 16 and the frame body 5 is provided with the second marker 34. The first marker 16 and the second marker 34 guide the orientation of the lighting fixture 100 when the lighting fixture 100 is attached to the support device 1. Therefore, the worker attaches the lighting fixture 100 to the support device 1 in the direction according to the second marker 34. As a result, the lighting fixture 100 can be easily attached to the support device 1.

The first marker 16 and the second marker 34 are provided corresponding to the type of the lighting fixture 100. For example, when the lighting fixture 100 having a specific shape or function is mounted on the support device 1, the mounting may be difficult unless the lighting fixture 100 is mounted in a specific direction. Therefore, by providing the first marker 16 and the second marker 34 that guide in a specific direction, the worker can easily attach the lighting fixture 100 to the support device 1. For example, when aligning the orientations of the plurality of lighting fixtures 100 or setting the orientation of the lighting fixtures 100 for each of the plurality of lighting fixtures 100, the first marker 16 and the second marker 34 that guide a specific direction are used. By providing, the worker can easily attach the lighting fixture 100 to the support device 1 in a desired orientation.

For example, when the luminaire 100 has a sensor (for example, a motion sensor or an illuminance sensor), it is effective to provide the first marker 16 and the second marker 34 to guide the mounting direction of the luminaire 100. is there.

Furthermore, according to the first embodiment, the plate 3 shown in FIG. 6 can be formed by processing a single metal plate. That is, by punching, cutting, notching, hollowing, or bending a hole in a single metal plate, the main body portion 9, the support portion 15, and the first convex portion 11 are formed. The second convex portion 12 and the second cutout portion 17 are integrally formed. Therefore, in this case, burrs may occur due to the processing of the metal plate. The burr is an unnecessary protrusion that occurs in the processed portion.

For example, before the bending process, the main body portion 9, the support portion 15, the first convex portion 11, the second convex portion 12, and the second cutout portion 17 are substantially flush with each other. Therefore, when the burr remains on the head portion 6d of the support portion 15, the burr projects downward. Therefore, the protrusion 6c is formed by bending at a substantially right angle, and the head portion 6d is further formed by bending at a substantially right angle. Therefore, even when the plate 3 is completed, the burr of the head portion 6d is projected downward. As a result, it is possible to suppress the burr from interfering with the work of connecting the frame body 5 to the plate 3 by the connecting portion 7, as compared with the case where the burr projects laterally. Note that, for example, it is possible to remove the burr by performing a polishing process.

Further, as described with reference to FIG. 8, according to the first embodiment, the nut 42 is screwed to the bolt 41 before connecting the frame body 5 to the plate 3. Further, before connecting the frame body 5 to the plate 3, the bolt 41 into which the nut 42 is screwed is attached to the frame body 5 and extends from the frame body 5. Therefore, the frame body 5 can be easily connected to the plate 3 as compared with the case where the bolts and nuts are mounted after inserting the tubular portion of the frame body into the mounting hole B. Further, it is possible to prevent the bolt 41 and/or the nut 42 from being lost during the work of mounting the support device 1 on the mounting plate A.

Further, as described with reference to FIGS. 8 and 11, according to the first embodiment, the frame body 5 is provided with the convex edge portion 24. Since the convex edge portion 24 abuts on the lower surface AL of the mounting plate A, the contact area between the collar portion 21 and the lower surface AL of the mounting plate A can be reduced as compared with the case where the upper surface of the flange portion is flat. .. Therefore, the surface state (for example, unevenness) of the lower surface AL of the mounting plate A is unlikely to be affected. As a result, the frame body 5 can be prevented from rising from the lower surface AL of the mounting plate A. Since the air flow between the mounting plate A and the frame 5 can be suppressed by suppressing the lifting of the frame body 5, it is possible to suppress a decrease in the airtightness of the indoor space when the support device 1 is installed indoors. ..

Further, as described with reference to FIGS. 9A and 9B, according to the first embodiment, the frame body 5 is provided with the concave portion 32 on the side of the lower surface 21b of the flange portion 21. Then, the flange portion 102 of the lighting fixture 100 is fitted into the recess 32. Therefore, the lighting fixture 100 is suppressed from projecting to the lower side of the mounting plate A. As a result, the aesthetics when the lighting fixture 100 is attached to the support device 1 can be improved.

Further, as described with reference to FIGS. 11 and 12, according to the first embodiment, the bolt 41 extends from the defined position P farther from the central axis AX2 than the inner peripheral surface 22b of the tubular portion 22. That is, the bolt 41 is arranged so as not to project toward the central axis AX2 side with respect to the inner peripheral surface 22b of the tubular portion 22. Therefore, when the lighting fixture 100 is inserted into the opening OP3 of the tubular portion 22, it is possible to prevent the lighting fixture 100 from coming into contact with the connecting portion 7. As a result, the lighting fixture 100 can be easily attached to the support device 1.

Further, the nut 42 does not project toward the central axis AX2 side with respect to the inner peripheral surface 22b of the tubular portion 22. Therefore, when the lighting fixture 100 is inserted into the opening OP3 of the tubular portion 22, it is possible to further suppress the lighting fixture 100 from coming into contact with the connecting portion 7. As a result, the lighting fixture 100 can be attached to the supporting device 1 more easily.

Further, the bolt 41 extends from the specified position P closer to the central axis AX2 than the first convex portion 11. Therefore, the distance between the nut 42 screwed to the bolt 41 and the opening OP3 is relatively short. As a result, the operator's finger easily reaches the nut 42, and the operator can easily rotate the nut 42.

(Modification)
A support device 1 according to a modified example of the first embodiment of the present invention will be described with reference to FIGS. 8, 10, and 17. As shown in FIG. 17, the supporting device 1 according to the modification further includes a packing 51 in addition to the configuration of the supporting device 1 shown in FIG. 10.

FIG. 17A is a perspective view showing the packing 51 of the supporting device 1 according to the modification. 17B is a sectional view taken along line XVIIB-XVIIB in FIG.

As shown in FIG. 17A, the packing 51 has a substantially annular shape and is made of an elastic resin (for example, rubber). The packing 51 has a substantially circular opening OP4. The packing 51 includes a first protrusion 52 having a substantially circular shape in plan view and a second protrusion 53 having a substantially circular shape in plan view.

As shown in FIGS. 17A and 17B, the first protrusion 52 is formed along the outer edge of the packing 51 on the upper surface 54 a of the packing 51. The first protrusion 52 has a substantially triangular cross section. The second protrusion 53 faces the first protrusion 52 on the upper surface 54 a of the packing 51, and is arranged at a predetermined distance from the first protrusion 52. The second protrusion 53 has a substantially triangular cross section. The radius of the second protrusion 53 is smaller than the radius of the first protrusion 52.

As shown in FIG. 17B, the packing 51 has a recess 55. The recess 55 is recessed from the lower surface 54b of the packing 51. The recess 55 is formed in a substantially circular shape in a plan view when the recess 55 is viewed from below.

The packing 51 is arranged on the upper surface 21a of the flange portion 21 by penetrating the opening OP4 into the tubular portion 22 of the frame body 5 shown in FIG. In this case, the concave portion 55 of the packing 51 fits into the convex edge portion 24 of the collar portion 21. In addition, the opening edge of the packing 51 contacts the raised portion 26. As a result, the packing 51 is properly positioned with respect to the collar portion 21.

As described above, according to the modified example of the first embodiment, the packing 51 is arranged on the upper surface 21 a of the flange portion 21. Therefore, the lower surface AL of the mounting plate A and the frame body 5 can be brought into close contact with each other, and the formation of a gap between the lower surface AL and the frame body 5 can be suppressed. As a result, a space (for example, a ceiling space) on the upper surface AU side of the mounting plate A and a space on the lower surface AL side of the mounting plate A (for example, a room The inflow and/or the outflow of gas can be suppressed with respect to the space. That is, the airtightness of the room can be improved.

(Embodiment 2)
The support device 1 according to the second embodiment of the present invention will be described with reference to FIGS. 10 and 18. As shown in FIGS. 18A and 18B, the support device 1 according to the second embodiment includes a plate 3A instead of the plate 3 shown in FIG. Specifically, in the second embodiment, each of the support portions 15A of the plate 3A has one protruding portion 6c and one head portion 6d. On the other hand, in the first embodiment, each of the support portions 15 of the plate 3 has two projecting portions 6c and two head portions 6d. Hereinafter, differences between the second embodiment and the first embodiment will be mainly described.

FIG. 18A is a perspective view of the plate 3A according to the second embodiment as viewed from above. FIG. 18B is a plan view of the supporting portion 15A of the plate 3A as viewed from above.

As shown in FIGS. 18A and 18B, the plate 3A includes a plurality of support portions 15A (two support portions 15A in the second embodiment). Each of the supporting portions 15A includes one protruding portion 6c and one head portion 6d. In addition, each of the support portions 15A further includes a first cutout portion 6e, a wall portion 6a, and a contact portion 6b.

The first cutout portion 6e is opened so as to widen toward the predetermined circumferential direction D5 of the plate 3. Specifically, the first cutout portion 6e includes an engagement edge 8a, a facing edge 8b, and a facing edge 8c. The facing edge 8b and the facing edge 8c face each other. The facing edge 8b and the facing edge 8c respectively extend from both ends of the engaging edge 8a. The facing edge 8b is arranged more radially inside the plate 3 than the facing edge 8c. The facing edge 8c is inclined with respect to the facing edge 8b. The protruding portion 6c is adjacent to the facing edge 8b and faces the facing edge 8c.

As described above, according to the second embodiment, the first cutout portion 6e of the plate 3 is opened so as to widen toward the end. Therefore, the bolt 41 can be easily engaged with the first cutout portion 6e. Further, the bolt 41 can be easily positioned on the engagement edge 8a.

Further, since the support device 1 according to the second embodiment includes the first convex portion 11 and the second convex portion 12 as in the case of the first embodiment, the plate 3 is suppressed while suppressing the restriction of the mounting hole B from increasing. Can be properly positioned in the mounting hole B. In addition, the second embodiment has the same effects as the first embodiment.

(Embodiment 3)
The support device 1 according to the third embodiment of the present invention will be described with reference to FIGS. 10, 19, and 20. As shown in FIG. 19, the support device 1 according to the third embodiment includes a frame body 5A instead of the frame body 5 shown in FIG. Specifically, the frame body 5A according to the third embodiment differs from the frame body 5 according to the first embodiment having a substantially circular outer edge in that the frame body 5A has a substantially square outer edge. The differences between the third embodiment and the first embodiment will be mainly described below.

FIG. 19 is a perspective view of the frame body 5A according to the third embodiment when viewed from above. FIG. 20 is a perspective view of the frame body 5A when viewed from below. As shown in FIGS. 19 and 20, the frame body 5A includes a collar portion 21A. The collar portion 21A has a substantially circular opening OP3 and is substantially plate-shaped. The outer edge of the collar portion 21A has a substantially rectangular shape.

The collar portion 21A includes a convex edge portion 24A. 24 A of convex edge parts are formed along the outer edge of 21 A of collar parts, and are substantially square shape. The convex edge portion 24A projects from the upper surface 21a of the collar portion 21A.

As described above, according to the third embodiment, the outer edge of the collar portion 21A has a substantially square shape, while the outer edge of the raised portion 26 has a substantially circular shape. Therefore, the tubular portion 22 and the raised portion 26 can be inserted into both the mounting hole having a substantially square shape and the mounting hole B having a substantially circular shape. That is, the supporting device 1 can be easily attached to both the mounting plate having the mounting holes having the substantially square shape and the mounting plate A having the mounting holes B having the substantially circular shape. However, the outer diameter of the raised portion 26 is made smaller than the shortest side of the mounting hole having a substantially square shape and smaller than the inner diameter of the mounting hole B having a substantially circular shape. When the raised portion 26 is not provided, the outer diameter of the tubular portion 22 is made smaller than the shortest side of the mounting hole having a substantially square shape and smaller than the inner diameter of the mounting hole B having a substantially circular shape.

For example, when the mounting hole has a substantially square shape, if the outer edge of the flange portion is formed into a substantially circular shape, the mounting hole may not be covered with the flange portion and the mounting hole may be exposed. Therefore, if the outer edge of the collar portion 21A is formed in a substantially quadrangular shape, the entire mounting hole having a substantially quadrangular shape can be covered, and the mounting hole can be prevented from being exposed. However, the length of each side of the outer edge of the collar portion 21A is set to be longer than the length of the longest side of the substantially rectangular mounting hole.

When the mounting hole has a substantially rectangular shape, the support device can be easily mounted even if the outer edge of the raised portion is formed in a substantially rectangular shape. However, if the raised portion is formed in a substantially quadrangular shape, when the support device 1 is mounted in the mounting hole B having a substantially circular shape, it is difficult to insert the tubular portion and the raised portion into the mounting hole B depending on the size of the mounting hole B. There are some cases.

Therefore, even if the outer edge of the collar portion 21A is substantially quadrangular, the outer edge of the raised portion 26 is formed in a substantially circular shape. As a result, the supporting device 1 can be attached to the mounting plate A having the mounting hole B having a substantially circular shape, and the mounting plate having the mounting hole having a substantially rectangular shape can be provided while suppressing the exposure of the mounting hole having a substantially rectangular shape. The support device 1 can also be attached.

Moreover, since the support device 1 according to the third embodiment includes the first convex portion 11 and the second convex portion 12 as in the first embodiment, the plate 3 is suppressed while suppressing the restriction of the mounting hole B from becoming large. Can be properly positioned in the mounting hole B. In addition, the third embodiment has the same effects as the first embodiment.

(Embodiment 4)
A support device 1 according to a fourth embodiment of the present invention will be described with reference to FIGS. 10 and 21. As shown in FIG. 21, the supporting device 1 according to the fourth embodiment includes a plate 3B instead of the plate 3 shown in FIG. Hereinafter, differences between the fourth embodiment and the first embodiment will be mainly described.

FIG. 21 is a perspective view of the plate 3B according to the fourth embodiment when viewed from above. As shown in FIG. 21, the plate 3B includes a main body 9A, a plurality of first protrusions 11A (four first protrusions 11A in the fourth embodiment), and a plurality of second protrusions 12A (fourth embodiment). The four second convex portions 12A) and the plurality of support portions 62 (two support portions 62 in the fourth embodiment) are included.

The main body 9A is substantially plate-shaped, and includes a substantially rectangular outer edge 64 and a substantially circular inner edge 65. The plate 3B has a substantially circular opening OP5. The inner edge 65 defines the opening OP5.

The body portion 9A includes a pair of short side portions 67 facing each other and a pair of long side portions 68 facing each other. Each of the long side portions 68 is folded back into a substantially U-shaped cross section. As a result, it is possible to prevent the plate 3B from being bent along the direction D6. Since the distance d1 is shorter than the distance d2, when the long side portion 68 is not folded back, the bending along the direction D6 is more likely to occur than the bending along the direction D7. The distance d1 indicates the distance between the long side portion 68 and the inner edge 65. The distance d2 indicates the distance between the short side portion 67 and the inner edge 65.

The configuration and arrangement of the first protrusion 11A are similar to the configuration and arrangement of the first protrusion 11 according to the first embodiment. However, the first convex portion 11A has a substantially plate shape and projects from the lower surface 9e of the main body portion 9A. Further, the first convex portion 11A is inclined with respect to the main body portion 9 so as to form an acute angle with the main body portion 9A.

The configuration and the arrangement of the second protrusion 12A are the same as the configuration and the arrangement of the second protrusion 12 according to the first embodiment. Further, as in the first embodiment, the distance (second protrusion length) between the lower surface 9e of the main body 9A and the tip of the second convex portion 12A is equal to the distance between the lower surface 9e of the main body 9A and the tip of the first convex portion 11A. It is shorter than the interval (first protrusion length). In other words, the first protrusion length indicates the length from the lower surface 9e to the tip of the first convex portion 11A along the direction substantially orthogonal to the lower surface 9e. The second protrusion length indicates the length from the lower surface 9e to the tip of the second convex portion 12A along the direction substantially orthogonal to the lower surface 9e.

The support portion 62 supports the frame body 5 via the connection portion 7, similarly to the support portion 15 according to the first embodiment. However, in the fourth embodiment, the bolt 41 of the connecting portion 7 does not have a head. Therefore, the nut 42 is screwed onto the bolt 41 after the bolt 41 is passed through the hole 66 of the support portion 62.

As described above, since the support device 1 according to the fourth embodiment includes the first protrusions 11A and the second protrusions 12A as in the first embodiment, the plate 3 can be prevented from increasing the restriction of the mounting hole B. Can be properly positioned in the mounting hole B.

The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and can be carried out in various aspects within the scope of the invention (for example, (1) to (10) shown below). Further, various inventions can be formed by appropriately combining the plurality of constituent elements disclosed in the above-described embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, the constituent elements of different embodiments may be combined appropriately. In order to facilitate understanding, the drawings mainly show each component, and the thickness, length, number, spacing, etc. of each component shown in the drawings may be different from the actual one for convenience of drawing. May be different. Further, the materials, shapes, dimensions, etc. of the respective constituent elements shown in the above-mentioned embodiment are merely examples, and are not particularly limited, and various modifications can be made without departing substantially from the effects of the present invention. is there.

(1) In Embodiments 1 to 4, the shape of the mounting hole formed in the mounting plate A is not limited to the substantially circular shape, and may have any shape. For example, the mounting hole may have a substantially elliptical shape or a substantially polygonal shape (for example, a substantially quadrangular shape).

(2) In the first and third embodiments, the shape of the main body 9 of the plate 3 is not limited to the substantially C shape, and may be any shape. For example, the main body 9 of the plate 3 may have an angular and substantially C shape. The shape of the first opening OP1 of the plate 3 is not limited to the substantially circular shape, and may be any shape. For example, the first opening OP1 may have a substantially elliptical shape or a substantially polygonal shape (for example, a substantially quadrangular shape). Further, the shape of the second opening OP2 is not particularly limited.

(3) In Embodiments 1 and 3, two supporting portions 15 are provided, but the number of supporting portions 15 is not particularly limited. For example, three or more support portions 15 can be provided.

(4) The matters described in (2) and (3) above are also applied to the plate 3A according to the second embodiment.

(5) In the first to third embodiments, four first convex portions 11 and two second convex portions 12 are provided, but each of the first convex portion 11 and the second convex portion 12 has two or more. Any number can be provided. Moreover, although the 1st convex part 11 and the 2nd convex part 12 were opposing, it does not need to oppose. The shapes of the first convex portion 11 and the second convex portion 12 are not particularly limited.

(6) In Embodiments 1 to 3, two types of convex portions (first convex portion 11 and second convex portion 12) are provided, and two circles having different radii (first circle CK1 and second circle CK1) are provided. It was placed on the circumference CK2). However, it is also possible to provide three or more types of convex portions and arrange them on three or more circumferences having different radii. When providing three or more types of protrusions, for example, the protrusion length of the protrusions is shortened as the distance from the central axis of the plate increases.

(7) The matters described in (5) and (6) above are also applied to the plate 3B according to the fourth embodiment.

(8) In Embodiments 1 to 4, two connecting portions 7 are provided, but the number of connecting portions 7 is not particularly limited. For example, three or more connecting portions 7 can be provided.

(9) In Embodiment 1, Embodiment 2, and Embodiment 4, the shape of the tubular portion 22 is not limited to the substantially cylindrical shape. For example, the tube portion 22 may have a substantially rectangular tube shape (for example, a substantially square tube shape). Further, the shape of the collar portion 21 is not limited to the substantially annular shape. For example, the collar portion 21 may have a substantially square ring shape (for example, a substantially square ring shape). The shape of the outer edge of the collar portion 21 is not limited to the substantially circular shape, and may be any shape.

(10) The description in (9) above is also applied to the frame body 5A according to the third embodiment.

INDUSTRIAL APPLICABILITY The present invention provides a supporting device for supporting a lighting fixture, and has industrial applicability.

1 Support Device 3, 3A, 3B Plate 5, 5A Frame 6a Wall 6b Abutment 6c Projection 6d Head 6e First Cutout 7 Connection 8a Engagement Edge 8b, 8c Opposite Edge 9, 9A Body 9a Outer edge 9b Inner edge 9c End edge 11, 11A First convex portion 12, 12A Second convex portion 15, 15A Support portion 17 Second notch portion 21, 21A Collar portion 22 Cylindrical portion 24, 24A Convex edge portion 26 Raised portion 32 Recessed portion 41 Bolt (bar-shaped member)
42 Nut (screw member)
100 lighting equipment

Claims (10)

A support device for supporting a luminaire,
A plate, a frame body including a collar portion, and a connecting portion that connects the plate and the frame body,
The plate includes a body portion,
The main body is plate-shaped, and has an outer edge and an inner edge,
The plate further includes a plurality of first protrusions and a plurality of second protrusions,
The first convex portion projects toward the side of the collar portion,
The second convex portion is arranged between the outer edge of the main body portion and the first convex portion, and protrudes toward the side of the collar portion,
Distance between the tip of the body portion and the second convex portion, rather short than the distance between the tip of the body portion and the first projecting portion,
When positioning the plate in the first mounting hole, the plurality of first convex portions enter the first mounting hole, and the movement of the plate in the radial direction of the first mounting hole is determined by the plurality of first mounting holes. Regulated by a convex portion, the plate is positioned in the first mounting hole by the plurality of first convex portions,
When positioning the plate in a second mounting hole that is larger than the first mounting hole, the plurality of second convex portions enter the second mounting hole, and the plate is arranged in the radial direction of the second mounting hole. A support device in which movement is restricted by the plurality of second protrusions, and the plate is positioned in the second mounting hole by the plurality of second protrusions . The plate further includes a support portion that supports the frame via the connection portion, and the support portion includes a first cutout portion,
The connection portion includes a rod-shaped member extending from the frame body, and a screw member screwed to the rod-shaped member,
The side portion along the longitudinal direction of the rod-shaped member engages with the first cutout portion from a direction intersecting the longitudinal direction,
The support device according to claim 1, wherein an end of the both ends of the screw member that is far from the tip of the rod-shaped member contacts the support portion. The first cutout portion,
An engagement edge with which the rod-shaped member engages,
Including a pair of opposed edges facing each other,
The pair of opposed edges respectively extend from both ends of the engagement edge,
The support further includes at least one protrusion,
The protrusion is
Along the longitudinal direction of the rod-shaped member, so as to be separated from the flange portion, projecting from the support portion,
The support device according to claim 2, which is adjacent to one of the pair of opposing edges. The support unit further includes a head unit,
The head portion is
The support device according to claim 3, wherein the support device extends from the tip of the protrusion along the direction intersecting the longitudinal direction of the rod-shaped member so as to be separated from the engagement edge. The plate further includes a second cutout portion adjacent to the support portion,
The second cutout portion is formed in the body portion from the inner edge of the body portion toward the outer edge,
The support device according to any one of claims 2 to 3, wherein the first cutout portion is open on the side of the second cutout portion. The frame further includes a tubular portion that is erected from the collar portion,
The rod-shaped member extends from a specified position farther from the central axis of the cylindrical part than the inner surface of the cylindrical part, and extends from the specified position closer to the central axis than the first convex part, The support device according to any one of claims 2 to 5. The frame further includes a tubular portion that is erected from the collar portion,
The collar portion includes a recess,
The recessed portion is recessed from a main surface opposite to the main surface on the plate side of the pair of main surfaces of the flange portion toward the base end of the tubular portion. The support device according to claim 1. The outer edge of the collar portion has a rectangular shape,
The frame body further includes a cylindrical tubular portion that is erected from the collar portion,
The collar portion includes a raised portion,
The raised portion is raised from the main surface on the plate side of the pair of main surfaces of the flange portion along the outer peripheral surface of the tubular portion,
The support device according to any one of claims 1 to 5, wherein an outer edge of the raised portion has a circular shape. The collar portion further includes a convex edge portion,
The projecting edge portion is formed along an outer edge of the flange portion, and protrudes from a main surface on the plate side among a pair of main surfaces of the flange portion. The support device according to item 1. The main body further has a pair of edges,
One edge of the pair of edges extends from one end of both ends of the outer edge to one end of both ends of the inner edge,
The other edge of the pair of edges extends from the other edge of the outer edge to the other edge of the inner edge,
The pair of edges are spaced apart from each other,
The one edge is curved in a convex shape toward the other edge,
The support device according to any one of claims 1 to 9, wherein the other edge is curved in a convex shape toward the one edge.

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