Mounting member, and power supply unit

Abstract

To provide a mounting member 20 capable of improving the appearance of a system ceiling 200.SOLUTION: A mounting member 20 according to the present invention includes a fixing part 21 and a hook part 30. The fixing part 21 is fixed to a lighting duct 10 extending in a first direction along the horizontal direction. The hook port 30 is connected to the fixing part 21, has a hook-like shape protruding outward in the horizontal direction from a connection part with the fixing part 21, and is hooked to an upper-end edge of a T bar 100 constituting a system ceiling 200.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a mounting member and a power supply unit. [Background technology]

[0002] Patent Document 1 discloses an attachment jig that is fixed via a fastening member to a groove formed at the lower end of a T-bar that constitutes the ceiling frame of a system ceiling. Various devices such as lighting fixtures are attached to this attachment jig. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-144323 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the mounting jig described in Patent Document 1 is fixed in a state where it protrudes downward from the lower end of the T-bar. This makes the mounting jig conspicuous in the system ceiling, and there is a concern that it may spoil the aesthetic appearance of the ceiling.

[0005] The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a mounting member and a power supply unit that can improve the aesthetic appearance of a system ceiling. [Means for solving the problem]

[0006] The mounting member disclosed in the present application includes a fixing part and a hook part. The fixing part is fixed to a mounting fixture extending in a first direction along the horizontal direction. The hook part is connected to the fixing part and has a hook shape that protrudes horizontally outward from the connection part with the fixing part, and is hooked onto the upper edge of a T-bar that constitutes a system ceiling.

[0007] The mounting member disclosed in the present application preferably has a plurality of the hook portions, and the plurality of hook portions are preferably formed integrally with the fixing portion.

[0008] In the mounting member disclosed in the present application, it is preferable that the fixing portion covers the mounting device over the entire area in the first direction.

[0009] In the mounting member disclosed in the present application, it is preferable that the hook portion includes a pair of short side hook portions provided at both ends of the fixing portion in the first direction.

[0010] In the mounting member disclosed in the present application, it is preferable that the hook portion includes a long side hook portion that is provided in multiple locations at the end of the fixing portion in a second direction that is perpendicular to the first direction in a plan view, and that the long side hook portions are arranged at intervals along the first direction.

[0011] In the mounting member disclosed in the present application, the hook portion includes a connecting piece, a protruding piece, and a tip piece. The connecting piece extends upward from the fixed portion. The protruding piece protrudes outward in the horizontal direction from an upper end of the connecting piece. The tip piece extends downward from an outer end of the protruding piece. It is preferable that a restricting piece that protrudes inward from the bottom to the top is formed on an inner surface of the tip piece that faces inward in the horizontal direction.

[0012] In the mounting member disclosed in the present application, it is preferable that the restricting piece is formed integrally with the tip piece.

[0013] In the mounting member disclosed in the present application, it is preferable that the connecting piece is formed with a fixing hole passing through the connecting piece.

[0014] It is preferable that the mounting member disclosed in the present application further comprises a quick-connect terminal block, the mounting device includes a power supply device that supplies power to other equipment, and the quick-connect terminal block electrically connects the inside of the power supply device to the outside of the mounting member.

[0015] The power supply unit disclosed in the present application preferably includes the mounting member and the power supply device to which the fixing portion is fixed. Effect of the Invention

[0016] The mounting member and power supply unit according to the present invention can improve the aesthetic appearance of the ceiling. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic plan view showing a power supply unit and a system ceiling according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is an external perspective view of the power supply unit and a part of the system ceiling shown in FIG. [Diagram 3] FIG. 3 is an external perspective view of the power supply unit shown in FIG. 2. [Figure 4] FIG. 4 is an exploded perspective view of the power supply unit shown in FIG. [Diagram 5] 4(a) is a front view of the power supply unit shown in Fig. 3, and (b) is a plan view of the power supply unit shown in Fig. 3. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. 2. [Figure 7] FIG. 7 is a view taken along the arrow VII in FIG. [Figure 8] FIG. 8 is a view taken along the arrow VIII in FIG. [Figure 9] 3 is a cross-sectional view taken along line IX-IX in FIG. 2. [Figure 10] FIG. 13 is a schematic diagram showing a first modified example of the arrangement of the power supply unit according to the present invention on a system ceiling. [Figure 11] 11 is an enlarged plan view of the power supply unit shown in FIG. 10. [Figure 12] 11 is a vertical sectional view of the power supply unit shown in FIG. 10. [Figure 13] FIG. 13 is a schematic diagram showing a second modified example of the arrangement of the power supply unit according to the present invention on a system ceiling. [Figure 14] 14 is an enlarged plan view of the power supply unit shown in FIG. 13. [Figure 15] FIG. 13 is a schematic diagram showing a third modified example of the arrangement of the power supply unit according to the present invention on a system ceiling. [Figure 16] FIG. 11 is an external perspective view of a power supply unit according to a second embodiment. [Figure 17] A diagram showing the peripheral configuration of a system ceiling. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] First Embodiment Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are given the same reference symbols and the description will not be repeated. In addition, in the drawings, the X-axis, Y-axis, and Z-axis of a three-dimensional orthogonal coordinate system are appropriately described for ease of understanding. The X-axis and Y-axis are parallel to the horizontal direction, and the Z-axis is parallel to the vertical direction. The positive direction of the Z-axis indicates the upward direction, and the negative direction of the Z-axis indicates the downward direction.

[0019] (1) Configuration of system ceiling 200 A system ceiling 200 to which a power supply unit 1 according to an embodiment of the present invention is attached will be described with reference to Fig. 1 and Fig. 2. Fig. 1 is a schematic plan view showing the power supply unit 1 according to an embodiment of the present invention and the system ceiling 200. Fig. 2 is an external perspective view of the power supply unit 1 and a part of the system ceiling 200.

[0020] The system ceiling 200 shown in Fig. 1 is a structure placed in the upper space of a room. The system ceiling 200 is supported by rod-shaped fixing members (such as hanging bolts) extending downward from the steel frame of the building. In other words, the system ceiling 200 is suspended from the steel frame of the building. The system ceiling 200 is composed of multiple bar materials, namely T-bars 100. The T-bars 100 are inverted T-shaped bar materials with their lower ends extending horizontally (see Fig. 6).

[0021] As shown in Fig. 2, multiple frames of the system ceiling 200 are formed by assembling T-bars 100 in a grid pattern (a lattice pattern). In each of the multiple frames, a ceiling panel 150 (see Fig. 9) is arranged so as to be supported by the protruding portion of the lower end of the T-bar 100, thereby forming the ceiling surface of the system ceiling 200.

[0022] As shown in Fig. 1, in this embodiment, each of the multiple T bars 100 extends along the X-axis direction or the Y-axis direction. The multiple T bars 100 are arranged in a square lattice pattern. Therefore, the ceiling panel 150 arranged in the area R1 formed by the multiple T bars 100 has a square shape.

[0023] A power supply unit 1 is attached to the system ceiling 200. The power supply unit 1 is attached to a T-bar 100 in the system ceiling 200. In the system ceiling 200, an area R2 in which the power supply unit 1 is attached has a rectangular opening. Therefore, a rectangular ceiling panel 150 is placed in the area R2 in which the power supply unit 1 is attached.

[0024] (2) Overall configuration of power supply unit 1 Next, the overall configuration of the power supply unit 1 will be described with reference to Figures 3 and 4. Figure 3 is an external perspective view of the power supply unit 1. Figure 4 is an exploded perspective view of the power supply unit 1.

[0025] As shown in Figs. 3 and 4, the power supply unit 1 has an elongated shape extending along a first direction. In the following description, the first direction is referred to as the "longitudinal direction LG". A second direction perpendicular to the longitudinal direction LG in a plan view is referred to as the "transverse direction TV". In this embodiment, the longitudinal direction LG is parallel to the X-axis constituting the horizontal plane, and the transverse direction TV is parallel to the Y-axis constituting the horizontal plane. The power supply unit 1 includes a lighting duct 10 and a mounting member 20. The lighting duct 10 is an example of a mounting fixture.

[0026] A mounting device is a device used to mount other equipment on the system ceiling 200. The mounting device includes a power supply device and a support device. The power supply device has a power supply function to supply power to other equipment mounted on the system ceiling 200. The lighting duct 10 corresponds to the power supply device. The support device does not have a power supply function and supports other equipment mounted on the system ceiling 200. A raceway without a power supply function corresponds to the support device.

[0027] (2-1) Configuration of lighting duct 10 Next, the configuration of the lighting duct 10 will be described with reference to Fig. 4. As shown in Fig. 4, the lighting duct 10 extends along the longitudinal direction LG. The lighting duct 10 is a rail-shaped wiring device having a long rectangular parallelepiped shape. The lighting duct 10 includes a housing 11, an end cap 12, a bracket 13, and an electrode (not shown).

[0028] The housing 11 is made of a lightweight metal material such as aluminum. The housing 11 is hollow and opens downward. A groove opening downward extends over the entire area of ​​the housing 11 in the longitudinal direction LG (see FIG. 9). The housing 11 is formed by extrusion molding, and has a uniform cross-sectional shape over the entire area of ​​the longitudinal direction LG. The housing 11 is open on both sides in the longitudinal direction LG.

[0029] The end cap 12 is disposed at one end in the longitudinal direction LG of the housing 11. The end cap 12 closes an opening on one side in the longitudinal direction LG of the housing 11. The end cap 12 is formed of, for example, a synthetic resin material.

[0030] The bracket 13 is disposed at the other end in the longitudinal direction LG of the housing 11. The bracket 13 closes the opening on the other side in the longitudinal direction LG of the housing 11. The bracket 13 is formed of, for example, a synthetic resin material.

[0031] A pair of electrodes are disposed inside the housing 11. The electrodes are formed of conductive wires. The electrodes extend over substantially the entire area in the longitudinal direction LG inside the housing 11. The electrodes are held inside the housing 11 via an insulating layer. The electrodes include a positive electrode and a negative electrode.

[0032] (2-2) Overall configuration of mounting member 20 Next, the overall configuration of the mounting member 20 will be described with reference to Fig. 4. As shown in Fig. 4, the mounting member 20 is a member that is fixed to the lighting duct 10. The mounting member 20 attaches the lighting duct 10 to the T-bar 100 (see Fig. 2). The mounting member 20 is made of sheet metal. The mounting member 20 includes a fixing portion 21, a hook portion 30, and a quick-connect terminal block 40.

[0033] (2-3) Configuration of fixing part 21 Next, the configuration of the fixing portion 21 of the mounting member 20 will be described with reference to Figures 4 and 5. Figure 5(a) is a front view of the power supply unit 1. Figure 5(b) is a plan view of the power supply unit 1.

[0034] As shown in Fig. 4, the fixed part 21 is fixed to the lighting duct 10. The fixed part 21 includes an upper panel 21A, a side panel 21B, and a flange portion 21C. The upper panel 21A has a plate shape with its front and back surfaces facing the up-down direction and covers the upper surface of the lighting duct 10. The upper panel 21A covers the upper surface of the lighting duct 10 over the entire area in the longitudinal direction LG. The upper panel 21A has a flattened rectangular shape in a plan view.

[0035] The upper plate 21A is provided with fastening holes 21D into which fastening screws for fixing the lighting duct 10 are inserted. The fastening holes 21D are arranged at intervals along the longitudinal direction LG. A counterbore having an elliptical shape in a plan view is formed around the fastening holes 21D in the upper plate 21A. The side plate 21B is connected to an edge on one side of the upper plate 21A in the short side direction TV.

[0036] The side panel 21B has a plate shape with its front and back sides facing the short-side direction TV and covering the side of the lighting duct 10. The side panel 21B covers one side of the lighting duct 10 over the entire area in the long-side direction LG. The side panel 21B has a flattened rectangular shape when viewed from the front from the short-side direction TV. A flange portion 21C is connected to the lower edge of the side panel 21B.

[0037] The flange portion 21C has a plate shape with its front and back surfaces facing the up-down direction and protruding from the lower edge of the side panel 21B toward the outside of the lighting duct 10 in the short-side direction TV. The flange portion 21C is connected to the lower edge of the side panel 21B over the entire area in the longitudinal direction LG. The side panel 21B has a flattened rectangular shape in a plan view.

[0038] The quick-connect terminal block 40 is disposed on the upper surface of the upper plate 21A of the mounting member 20. The quick-connect terminal block 40 is a member that electrically connects the inside of the lighting duct 10 and the outside of the mounting member 20. The quick-connect terminal block 40 is disposed at the other end of the upper plate 21A in the longitudinal direction LG. The quick-connect terminal block 40 includes a plurality of terminals. In this embodiment, the quick-connect terminal block 40 includes a positive terminal, a negative terminal, and a ground terminal.

[0039] The positive terminal is electrically connected to the positive electrode in the bracket 13 via a conductor (not shown) that connects from the bracket 13 to the quick-connect terminal block 40. The negative terminal is electrically connected to the negative electrode in the bracket 13 via a conductor (not shown) that connects from the bracket 13 to the quick-connect terminal block 40. The earth terminal is electrically connected to the earth bolt in the bracket 13 via a conductor (not shown) that connects from the bracket 13 to the quick-connect terminal block 40.

[0040] When an external conductor is connected to any one of the positive terminal, negative terminal, and earth terminal of the quick-connect terminal block 40, electrical continuity is established between the corresponding positive electrode, negative electrode, and earth bolt in the lighting duct 10 and the external conductor. Therefore, with the power supply unit 1 attached to the T-bar 100, the work of establishing electrical continuity between the lighting duct 10 and an external device can be easily performed.

[0041] A plurality of hooks 30 are disposed on the upper surface of the upper plate 21A. In the illustrated example, four hooks 30 are disposed on the upper surface of the fixed portion 21.

[0042] (2-4) Configuration of the hook portion 30 Next, the configuration of the hook portion 30 will be described with reference to Fig. 5 to Fig. 9. As shown in Fig. 5, the hook portion 30 is a hook-shaped member, and is connected to the fixed portion 21. In this embodiment, the multiple hook portions 30 are formed integrally with the fixed portion 21. This makes it possible to handle the mounting member 20 as an integral member, and makes it easy to fix the mounting member 20 to the lighting duct 10. Note that the hook portion 30 may be formed separately from the fixed portion 21.

[0043] The hook portion 30 is formed by bending a metal plate. As shown in FIG. 5(b), the hook portion 30 protrudes outward in the horizontal direction beyond the connection portion with the fixed portion 21. The hook portion 30 is hooked onto the upper edge of the T-bar 100 constituting the system ceiling 200 (see FIG. 2). Therefore, the lighting duct 10 can be supported on the side of the T-bar 100, and the lighting duct 10 can be held without protruding downward from the T-bar 100. As a result, the mounting member 20 according to the present invention can improve the aesthetic appearance of the ceiling when the lighting duct 10 is mounted on the system ceiling 200.

[0044] In this embodiment, the hook portion 30 includes a short side hook portion 31 and a long side hook portion 32. The short side hook portion 31 and the long side hook portion 32 have different cross-sectional shapes perpendicular to the T-bar 100 to which they are respectively hooked. The configurations of the short side hook portion 31 and the long side hook portion 32 will be described in detail below.

[0045] (2-4-1) Configuration of short side hook portion 31 First, the configuration of the short-side hook portion 31 will be described. Fig. 6 is a cross-sectional view taken along the line VI-VI in Fig. 2. As shown in Fig. 3, a pair of short-side hook portions 31 are provided at both ends in the longitudinal direction LG of the fixed portion 21. As shown in Fig. 6, the short-side hook portion 31 includes a short-side connecting piece 311, a short-side protruding piece 312, and a short-side tip piece 313.

[0046] The short-side connecting piece 311 extends upward from the fixed portion 21. The short-side protruding piece 312 protrudes outward in the longitudinal direction LG from an upper end of the short-side connecting piece 311. The short-side tip piece 313 extends downward from the outer end of the short-side protruding piece 312.

[0047] In the short-side hook portion 31, the short-side connecting piece 311 and the short-side tip piece 313 each extend straight in the vertical direction. Therefore, in a cross section (a plane parallel to the XZ plane) perpendicular to the T-bar 100 to which the short-side hook portion 31 is hooked, the horizontal size (X direction) of the short-side hook portion 31 is constant regardless of the vertical position.

[0048] A restricting piece 314 is formed on the inner surface of the short-side tip piece 313 of the short-side hook portion 31 that faces inward in the horizontal direction. The restricting piece 314 protrudes inward as it goes from below to above. The restricting piece 314 is formed integrally with the short-side tip piece 313. This prevents an increase in the number of parts due to the addition of the restricting piece 314, and allows the mounting member 20 including the restricting piece 314 to be constructed at low cost.

[0049] Fig. 7 is a view seen from the arrow VII in Fig. 3. Fig. 8 is a view seen from the arrow VIII in Fig. 3. As shown in Fig. 7 and Fig. 8, the restricting piece 314 is formed by cutting and raising the central portion of the short-side tip piece 313. Therefore, an opening 315 formed by cutting and raising the restricting piece 314 is disposed in a portion of the short-side tip piece 313 that faces the restricting piece 314 in the horizontal direction.

[0050] As shown in Fig. 5(b), in the mounting member 20 according to this embodiment, the short side hook portion 31 includes a first short side hook portion 31A and a second short side hook portion 31B. In Fig. 5(b), the first short side hook portion 31A is disposed at an end portion in the longitudinal direction LG where the quick-connect terminal block 40 is located. In Fig. 5(b), the second short side hook portion 31B is disposed at an end portion opposite the first short side hook portion 31A in the longitudinal direction LG.

[0051] The first short-side hook portion 31A and the second short-side hook portion 31B are different from each other in size in the short direction TV of the short-side protruding piece 312. This point will be described in detail with reference to Figs.

[0052] 7 and 8, the size L1 in the short direction TV of the short side protruding piece 312 in the first short side hook portion 31A is larger than the size L2 in the short direction TV of the short side protruding piece 312 in the second short side hook portion 31B. The reason why the sizes in the short direction TV of the first short side hook portion 31A and the second short side hook portion 31B are different from each other in this way will be described later.

[0053] (2-4-2) Configuration of long side hook portion 32 Next, the configuration of the long side hook portion 32 will be described. As shown in Fig. 4, a plurality of long side hook portions 32 are provided at the end portion in the short side direction TV of the fixed portion 21. The long side hook portion 32 is disposed at the end portion of the fixed portion 21 opposite the flange portion 21C in the short side direction TV. The plurality of long side hook portions 32 are disposed at intervals along the longitudinal direction LG.

[0054] In the illustrated example, two long side hook parts 32 are arranged on the top panel 21A. Therefore, by attaching the power supply unit 1 to the T-bar 100 using the long side hook parts 32 in addition to the short side hook parts 31, the posture of the lighting duct 10 can be more stabilized. The number of long side hook parts 32 can be selected arbitrarily.

[0055] As shown in FIG. 8, the long-side hook portion 32 includes a long-side connecting piece 321, a long-side protruding piece 322, and a long-side tip piece 323.

[0056] The long-side connecting piece 321 indicates a portion extending upward from the fixed portion 21. The long-side protruding piece 322 indicates a portion protruding outward in the short direction TV from the upper end of the long-side connecting piece 321. The long-side tip piece 323 indicates a portion extending downward from the outer end of the long-side protruding piece 322.

[0057] The long side connecting piece 321 is composed of a first connecting piece 3211, a second connecting piece 3212, and a third connecting piece 3213. The first connecting piece 3211 is the part of the long side connecting piece 321 that is located at the bottom. In the structure shown in FIG. 8, the first connecting piece 3211 has an inverted L-shaped cross section. The first connecting piece 3211 is fixed to the back surface of the upper plate 21A of the fixing part 21.

[0058] The second connecting piece 3212 indicates the uppermost portion of the long-side connecting piece 321. In the structure shown in Fig. 8, the second connecting piece 3212 is disposed inside the TV in the short side direction (on the lighting duct 10 side) than the first connecting piece 3211. The long-side protruding piece 322 is connected to the upper end of the second connecting piece 3212.

[0059] The third connecting piece 3213 indicates a portion of the long side connecting piece 321 that connects the first connecting piece 3211 and the third connecting piece 3213. The third connecting piece 3213 gradually extends toward the inside of the short side direction TV (toward the lighting duct 10) from below toward the top. Therefore, the upper end of the portion of the long side connecting piece 321 that extends in the up-down direction is located more inside the short side direction TV than the lower end.

[0060] 4, the long-side connecting piece 321 has a fixing hole 33 formed therethrough. The fixing hole 33 is disposed in the center of the first connecting piece 3211 of the long-side connecting piece 321 in the longitudinal direction LG.

[0061] The fixing holes 33 are used, for example, when a device of a certain weight is to be supported by the lighting duct 10. Specifically, when the power supply unit 1 is firmly attached to the T-bar 100, fixing screws are attached to the fixing holes 33. That is, a through hole is separately formed in the T-bar 100, and the power supply unit 1 can be firmly attached to the T-bar 100 using a fixing screw. This makes it possible to support, for example, a device of a certain weight by the lighting duct 10. Note that the fixing holes 33 do not have to be provided in the long side connecting pieces 321.

[0062] 8, the long side tip piece 323 is composed of a first tip piece 3231, a second tip piece 3232, and a third tip piece 3233. The first tip piece 3231 indicates the uppermost part of the long side tip piece 323. The first tip piece 3231 is connected to the long side protruding piece 322.

[0063] The second end piece 3232 indicates a portion connected to the lower end of the first end piece 3231. The second end piece 3232 extends downward toward the inside of the TV in the short side direction (toward the lighting duct 10).

[0064] The third end piece 3233 indicates a portion connected to the lower end of the second end piece 3232. The third end piece 3233 extends downward toward the outside of the TV in the short side direction (the side opposite the lighting duct 10).

[0065] In the long-side connecting piece 321, a connecting portion between the second end piece 3232 and the third end piece 3233 is located on the innermost side relative to the first end piece 3231 in the short side direction TV.

[0066] In the long-side hooking portion 32, the long-side connecting piece 321 and the long-side tip piece 323 each extend in the up-down direction while bending. In a cross section (a plane parallel to the YZ plane) perpendicular to the T-bar 100 on which the long-side hooking portion 32 is hooked, the horizontal size (Y direction) of the long-side hooking portion 32 is smallest at the center in the up-down direction.

[0067] As shown in FIG. 5(b), in the mounting member 20 according to this embodiment, the long side hook portion 32 includes a first long side hook portion 32A and a second long side hook portion 32B. The first short side hook portion 31A is disposed on the side where the quick-connect terminal block 40 is located in the longitudinal direction LG in FIG. 5(b). The second long side hook portion 32B is disposed on the end opposite the first long side hook portion 32A in the longitudinal direction LG in FIG. The first long side hook portion 32A and the second long side hook portion 32B are equivalent in shape and size to each other.

[0068] The long side hook portions 32 are different from one another in distance from the center in the longitudinal direction LG of the attachment member 20. Specifically, the distance L3 from the first long side hook portion 32A to the central axis Ax in the longitudinal direction LG is greater than the distance L4 from the second long side hook portion 32B to the central axis Ax. The reason why the long side hook portions 32 are different from one another in distance from the center in the longitudinal direction LG of the attachment member 20 will be described later.

[0069] (3) Installation state on T-bar 100 Next, the attachment state of the hook portion 30 to the T-bar 100 will be described with reference to Figs.

[0070] (3-1) Mounting state using short side hook portion 31 As shown in Fig. 6, the T-bar 100 includes a support portion 110, a groove portion 120, and a connection piece 130. The support portion 110 is located at the upper end and has a hollow, generally rectangular shape. The groove portion 120 is located at the lower end and has a rail shape that opens downward. The connection piece 130 connects the support portion 110 and the groove portion 120 and extends in the vertical direction.

[0071] 6, when the mounting member 20 is attached to the T-bar 100, the short-side hook portion 31 is hooked onto the upper edge of the T-bar 100. At this time, the restricting piece 314 protruding from the inside of the tip piece of the short-side hook portion 31 is inserted below the support portion 110 of the T-bar 100.

[0072] For this reason, even if an upward external force acts on the power supply unit 1, the restricting pieces 314 engage with the support parts 110 of the T-bar 100, thereby preventing the short-side hook parts 31 from coming off the T-bar 100. The worker can remove the power supply unit 1 from the T-bar 100 by pushing the power supply unit 1 upward with the short-side tip pieces 313 of the short-side hook parts 31 spread outward in the longitudinal direction LG.

[0073] (3-2) Mounting state using the long side hook portion 32 Fig. 9 is a cross-sectional view taken along line IX-IX in Fig. 2. As shown in Fig. 9, when the mounting member 20 is attached to the T-bar 100, the long-side hooking portion 32 is hooked onto the upper edge of the T-bar 100. At this time, the connecting portion between the second tip piece 3232 and the third tip piece 3233 of the long-side hooking portion 32 is inserted below the support portion 110 of the T-bar 100.

[0074] Therefore, even if an upward external force acts on the power supply unit 1, the connecting portion between the second end piece 3232 and the third end piece 3233 engages with the support portion 110 of the T-bar 100, thereby preventing the long side hook portion 32 from coming off the T-bar 100.

[0075] Furthermore, when the mounting member 20 is attached to the T-bar 100, the second connecting piece 3212 of the long-side hook portion 32 is inserted below the support portion 110 of the T-bar 100. Therefore, even if an external force acts on the power supply unit 1 in the upward direction, the second connecting piece 3212 engages with the support portion 110 of the T-bar 100, thereby preventing the long-side hook portion 32 from coming off the T-bar 100.

[0076] The worker can remove the power supply unit 1 from the T-bar 100 by pushing the power supply unit 1 upward while spreading the third end piece 3233 of the long side hook portion 32 toward the outside of the TV in the short side direction.

[0077] 9, with the power supply unit 1 attached to the T-bar 100, the lighting duct 10 is located to the side of the T-bar 100. Specifically, the lower surface of the lighting duct 10 and the lower surface of the groove portion 120 of the T-bar 100 are at the same position in the vertical direction. Then, the ceiling panel 150 is placed on the flange portion 21C of the mounting member 20. In this state, the lower surface of the lighting duct 10 and the lower surface of the ceiling panel 150 are at the same position in the vertical direction.

[0078] For this reason, when the power supply unit 1 is attached to the T-bar 100, the amount of downward protrusion of the lighting duct 10 from the ceiling panel 150 can be significantly reduced, for example, compared to a state in which the lighting duct 10 is disposed below the T-bar 100. In other words, the power supply unit 1 according to the present invention can improve the aesthetic appearance of the ceiling when the lighting duct 10 is attached to the system ceiling 200.

[0079] (4) Modifications of the arrangement of the power supply unit 1 Next, modified examples of the arrangement of the power supply unit 1 will be described with reference to FIGS.

[0080] (4-1) First Modification 10 is a schematic diagram showing a first modified example of the arrangement of the power supply units 1 on a system ceiling 200. In the first modified example, an arrangement state in which a plurality of power supply units 1 are arranged in the longitudinal direction LG will be described.

[0081] As shown in FIG. 10, in an arrangement state of the power supply units 1 according to the first modification, a plurality of power supply units 1 are attached to the system ceiling 200 so as to be continuous in the longitudinal direction LG in each of the mutually adjacent regions R.

[0082] Fig. 11 is an enlarged plan view of the power supply unit 1 shown in Fig. 10. As shown in Fig. 11, when two power supply units 1 are attached to a T-bar 100 lined up in the longitudinal direction LG, their short-side hook portions 31 are attached to the T-bar 100 lined up in the short-side direction TV. That is, the first short-side hook portion 31A of one power supply unit 1 and the second short-side hook portion 31B of the other power supply unit 1 are lined up in the short-side direction TV.

[0083] In this state, the positions and sizes of the first short-side hook portion 31A and the second short-side hook portion 31B are determined so that the first short-side hook portion 31A and the second short-side hook portion 31B do not overlap. Specifically, the first short-side hook portion 31A and the second short-side hook portion 31B are disposed on opposite sides of each other in the short-side direction TV.

[0084] The sum of the dimensions in the short side direction TV of the first short side hook portion 31A and the second short side hook portion 31B is set so as not to exceed the dimension in the short side direction TV of the power supply unit 1. Next, the difference in dimensions in the short side direction TV of the first short side hook portion 31A and the second short side hook portion 31B will be described in detail.

[0085] Fig. 12 is a vertical cross-sectional view of the power supply unit 1 shown in Fig. 10. Fig. 12 shows a state in which a spotlight S for a room is supported by a lighting duct 10 as an example of a usage mode of the power supply unit 1.

[0086] 12, when the lighting duct 10 supports a structure such as a spotlight S whose center of gravity G is off center X of the short side direction TV of the power supply unit 1, a moment load indicated by an arrow F in FIG. 12 is applied to the power supply unit 1. That is, the power supply unit 1 receives a clockwise moment load around the short side hook portion 31, which serves as a fulcrum, and the upper end edge of the T-bar 100. This creates a risk that the power supply unit 1 will rotate in a direction that creates a gap between the lower end of the lighting duct 10 and the groove portion 120 of the T-bar 100.

[0087] For this reason, as shown in FIG. 11, of the first short side hook portion 31A and the second short side hook portion 31B, the size of the short side direction TV of the first short side hook portion 31A, which is attached at a position closer to the T-bar 100 extending in the longitudinal direction LG, is increased to suppress rattling of the power supply unit 1 due to the moment load described above. In other words, the dimension in the short direction TV of the short side hook portion 31 (in this embodiment, the first short side hook portion 31A) located near the long side on which the long side hook portion 32 is provided is set to be larger than the dimension of the other short side hook portion 31 (in this embodiment, the second short side hook portion 31B).

[0088] (4-2) Second Modification 13 is a schematic diagram showing a second modified example of an arrangement state of the power supply units 1 on the system ceiling 200. In the second modified example, an arrangement state in which a plurality of power supply units 1 are arranged in the short side direction TV will be described.

[0089] As shown in FIG. 13, in an arrangement state of the power supply units 1 according to the second modification, a plurality of power supply units 1 are attached to the system ceiling 200 in each of adjacent regions R so as to be continuous with the short side direction TV.

[0090] Fig. 14 is an enlarged plan view of the power supply unit 1 shown in Fig. 13. As shown in Fig. 14, when two power supply units 1 are attached to the T-bar 100 side by side in the short-side direction TV, their long-side hook portions 32 are attached to the T-bar 100 side by side in the longitudinal direction LG. In other words, the two power supply units 1 are attached to one T-bar 100 in opposite directions.

[0091] In this state, the two long side hook portions 32 of one power supply unit 1 and the two long side hook portions 32 of the other power supply unit 1 are aligned in the longitudinal direction LG.

[0092] As described above, the distances from the center of the longitudinal direction LG of the mounting member 20 are different for each of the long side hook portions 32 (see FIG. 5(b)). Therefore, in two power supply units 1 attached to one T-bar 100 so as to be oriented in opposite directions, it is possible to prevent the long side hook portions 32 from interfering with each other.

[0093] (4-3) Third Modification 15 is a schematic diagram showing a third modified example of an arrangement state of the power supply unit 1 on the system ceiling 200. In the third modified example, an arrangement state in which the power supply unit 1 is arranged in the middle part of the T-bar 100 will be described.

[0094] 15, in the arrangement state of the power supply unit 1 according to the third modified example, the power supply unit 1 is attached to the center of the region R. In this state, the power supply unit 1 is attached to the T-bar 100 by a pair of short-side hook parts 31, and the long-side hook parts 32 are not contributing to the attachment to the T-bar 100. Then, in the system ceiling 200, the region R3 in which the power supply unit 1 is attached is divided into two. In this way, in the system ceiling 200 formed by the T-bar 100, the lighting duct 10 can be attached to any position, not just near the T-bar 100, using the short-side hook parts 31.

[0095] <Second embodiment> Next, a power supply unit 1 according to a second embodiment will be described with reference to Fig. 16. Note that the same components as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.

[0096] (5) Configuration of power supply unit 1 according to the second embodiment Fig. 16 is a perspective view of a power supply unit 1 according to the second embodiment. As shown in Fig. 16, in the power supply unit 1 according to this embodiment, the structure of the mounting member 20 is different from that in the first embodiment. That is, the power supply unit 1 according to the second embodiment includes a plurality of mounting members 20.

[0097] Each of the multiple mounting members 20 includes a fixing portion 21 and a hook portion 30. The fixing portion 21 and the hook portion 30 are integrally formed from sheet metal material. In the example shown in Fig. 16, four mounting members 20 are fixed to the upper surface of the lighting duct 10. With this configuration, the fixing portion 21 of the mounting member 20 can be made more compact than in a configuration in which the fixing portion 21 covers the entire area of ​​the lighting duct 10 in the longitudinal direction LG, and the weight of the power supply unit 1 can be reduced.

[0098] (6) Peripheral configuration of system ceiling 200 Next, the configuration of the periphery of the system ceiling 200 will be described with reference to Fig. 17. Fig. 17 is a diagram showing another configuration example of the system ceiling 200. As shown in Fig. 17, various types of equipment can be connected to the groove portion 120 of the T-bar 100. In the example of Fig. 17, a partition P that separates the interior of the room is connected. A support member 50 is used to connect the partition P.

[0099] As shown in the enlarged view of FIG. 17, the support member 50 includes a head portion 51 and a shaft portion 52. The head portion 51 has a rectangular shape having long sides and short sides in a plan view. A protrusion 51A that protrudes upward is formed on the outer edge of the head portion 51 in a plan view. The protrusion 51A is provided on each of the four sides of the head portion 51. The heights of the four protrusions 51A are approximately the same.

[0100] The shaft portion 52 protrudes downward from the lower surface of the head portion 51. A male thread is formed on the outer circumferential surface of the shaft portion 52. The support member 50 can support an object to be supported by attaching a nut N to the male thread via the object to be supported.

[0101] In this way, when using the mounting member 20 of the present invention, it is not necessary to mount the lighting duct 10 in the groove 120 of the T-bar 100, which is the conventional mounting position. Therefore, with the lighting duct 10 mounted, it is possible to mount other equipment to the T-bar 100 using the support member 50. This allows for freedom in spatial configuration using the system ceiling 200.

[0102] In the above example, the partition P is attached to the T-bar 100, but equipment other than a partition may be attached to the T-bar 100. For example, together with the lighting duct 10 attached by the attachment member 20 of the present invention, another lighting duct 10 may be attached to the groove portion 120 of the T-bar 100 by a conventional attachment structure.

[0103] (8) Other modifications Next, other variations of the present invention will be described.

[0104] In the above embodiment, the system ceiling 200 is shown to have a configuration including the ceiling panel 150, but this is not limited thereto. That is, the system ceiling 200 does not have to have the ceiling panel 150. The system ceiling 200 may also include an area where the ceiling panel 150 is arranged and an area where the ceiling panel 150 is not arranged, with respect to the lattice-shaped T-bar 100 installed over the entire surface. In this case, the T-bar 100 may be removed from the area where the ceiling panel 150 is not arranged, and multiple different ceilings may be constructed using frame members that are supported individually and independently of the T-bar 100.

[0105] In the above embodiment, the system ceiling 200 in which a square area is formed by a plurality of T bars 100 has been described as an example, but this is not limited thereto. For example, the system ceiling 200 may form a rectangular area having long and short sides by the T bars 100. In this case, the size of the longitudinal direction LG of the lighting duct 10 does not have to match the length of the T bar 100 to which it is attached. In other words, the power supply unit 1 may be attached to the T bar 100 using only the plurality of long side hook parts 32, without using the short side hook parts 31.

[0106] In the above embodiment, the long side hook portion 32 and the short side hook portion 31 have different structures, but this is not limited to the above. The long side hook portion 32 and the short side hook portion 31 may have the same structure.

[0107] The device connected to the power supply unit 1 according to the present invention is not limited to a lighting device. For example, any of devices such as a duct rail plug, an air purifier, an aroma generating device, an air conditioning device, a ventilation device, a medical device, a video device, and an audio device can be connected to the power supply unit 1. Each device connected to the power supply unit 1 corresponds to an example of another device to which power is supplied by the lighting duct 10, which is a power supply device.

[0108] 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 embodiments, and can be implemented in various forms without departing from the scope of the present invention. The drawings are mainly schematic illustrations of each component for ease of understanding, and the thickness, length, number, etc. of each component shown in the drawings are different from the actual ones due to the convenience of drawing. In addition, the materials, shapes, dimensions, etc. of each component shown in the above embodiments are merely examples, and are not particularly limited, and various modifications are possible within a scope that does not substantially deviate from the effects of the present invention. [Explanation of symbols]

[0109] 1 Power Supply Unit 10 Lighting ducts (mounting fixtures, power supply devices) 20 Mounting material 21 Fixed part 30 Hook section 31 Short side hook (hook) 311 Short side connecting piece (connecting piece) 312 Short side protruding piece (protruding piece) 313 Short side tip piece (tip piece) 314 Regulation piece 32 Long side hook (hook) 321 Long side connecting piece (connecting piece) 322 Long side protruding piece (protruding piece) 323 Long side tip piece (tip piece) 100 T-bar 200 System ceiling

Claims

1. A fixing portion fixed to a mounting fixture extending in a first direction along a horizontal direction; a hook portion that is connected to the fixed portion and has a hook shape that protrudes horizontally outward from the connection portion with the fixed portion and is hooked onto the upper end edge of a T-bar that constitutes the system ceiling; A mounting member comprising:

2. The hook portion includes a plurality of hook portions, The mounting member according to claim 1 , wherein the plurality of hook portions are integrally formed with the fixing portion.

3. The mounting member according to claim 2 , wherein the fixing portion covers the mounting device over an entire area in the first direction.

4. The attachment member according to claim 3 , wherein the hook portion includes a pair of short side hook portions provided at both ends of the fixing portion in the first direction.

5. The hook portion includes a plurality of long side hook portions provided at an end portion of the fixing portion in a second direction perpendicular to the first direction in a plan view, The attachment member according to claim 4 , wherein the long-side hook portions are arranged at intervals along the first direction.

6. The hook portion includes a connecting piece extending upward from the fixed portion, a protruding piece protruding outward in the horizontal direction from an upper end of the connecting piece; a tip piece extending downward from the outer end of the protruding piece; Equipped with 6. The mounting member according to claim 1, wherein a restricting piece is formed on an inner surface of the tip piece facing inward in the horizontal direction, the restricting piece protruding inward from below to above.

7. The mounting member according to claim 6 , wherein the restricting piece is formed integrally with the tip piece.

8. The mounting member according to claim 6 , wherein the connecting piece has a fixing hole formed therethrough.

9. It also has a quick-connect terminal block. The mounting fixture includes a power supply device that supplies power to other equipment, The mounting member according to claim 1 , wherein the quick-connect terminal block electrically connects an inside of the power supply device to an outside of the mounting member.

10. A mounting member according to any one of claims 1 to 5; the power supply device to which the fixing portion is fixed; A power supply unit comprising:

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