Lighting device

Abstract

To provide a lighting device that prevents the fixture body from detaching from the mounting member. [Solution] The lighting device 10 comprises a long fixture body 16, a mounting member 40, and a fixing member 41. The fixture body 16 has a long top plate portion 20 and side plate portions 21 provided on both sides that intersect the longitudinal direction of the top plate portion 20. The mounting member 40 is positioned on the upper part of both ends of the fixture body 16 in the longitudinal direction and is attached to suspension bolts 11 from the ceiling side. The fixing member 41 has a holding portion 48 that holds the mounting member 40 and mounting portions 49 provided on both sides of the holding portion 48 that are attached to the side plate portions 21 on both sides of the fixture body 16. The mounting portion 49 is provided with a screw mounting portion 54 at the central position of the fixture body 16 that is attached to the side plate portion 21 with a screw 53, and a hook portion 55 that hooks onto the side plate portion 21 is provided at a position closer to the end of the fixture body 16 than the screw mounting portion 54.

Description

Technical Field

[0001] Embodiments of the present invention relate to lighting devices.

Background Art

[0002] Conventionally, there is a lighting device that is installed by attaching an appliance body to a pair of suspension bolts from the ceiling side. In this lighting device, when there is a distance between the height at which the appliance body is installed and the suspension bolts, an attachment member may be projected above the appliance body, and the appliance body may be attached to the suspension bolts via the attachment member. In such a lighting device, it is necessary to prevent the appliance body from detaching from the attachment member and falling.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The problem to be solved by the present invention is to provide a lighting device that can prevent the appliance body from detaching from the attachment member.

Means for Solving the Problems

[0005] The lighting device according to the embodiment includes a long appliance body, an attachment member, and a fixing member. The appliance body has a long top plate portion and side plate portions provided on both sides intersecting the longitudinal direction of the top plate portion. The attachment member is disposed at upper portions on both end sides in the longitudinal direction of the appliance body and is attached to suspension bolts from the ceiling side. The fixing member has a holding portion that holds the attachment member, and attachment portions provided on both sides of the holding portion and attached to the side plate portions on both sides of the appliance body. The attachment portion is provided with a screw attachment portion that is attached to the side plate portion with a screw at a position on the center side of the appliance body, and a hooking portion that hooks on the side plate portion at a position on the end side of the appliance body with respect to the screw attachment portion. [Effects of the Invention]

[0006] According to this embodiment, it is expected that the fixture body will not detach from the mounting member. [Brief explanation of the drawing]

[0007] [Figure 1] This is a perspective view of a disassembled state of the fixture body and light source unit of a lighting device, illustrating one embodiment. [Figure 2] This is a perspective view of some of the mounting and fixing members of the same lighting device, disassembled. [Figure 3] This is a perspective view of the underside of the fixture body of the same lighting device. [Figure 4] This is a perspective view of the mounting and fixing members of the same lighting device. [Figure 5] This is a perspective view of the mounting and fixing members of the same lighting device in their detachable positions. [Figure 6] This is a perspective view showing the mounting and fixing members of the same lighting device slid into their mounting positions. [Modes for carrying out the invention]

[0008] One embodiment will be described below with reference to the drawings.

[0009] Figure 1 shows the lighting device 10. The lighting device 10 is a long, recessed lighting device that is installed embedded in a recessed opening provided in the ceiling panel, which is the installation area. A pair of suspension bolts 11 are installed above the recessed opening in the ceiling panel, hanging down from the ceiling structure, and the lighting device 10 is attached to the pair of suspension bolts 11 and embedded in the recessed opening in the ceiling panel. One end of the lighting device 10 in the longitudinal direction is referred to as the first end 12, and the other end as the second end 13.

[0010] The lighting device 10 comprises a long fixture body 16 and a long light source unit 17 that is detachably attached to the lower side of the fixture body 16.

[0011] As shown in Figures 1 to 3, the fixture body 16 is made of metal (sheet metal) and has an open bottom. The fixture body 16 has a top plate portion 20, side plate portions 21 that are bent downward from both sides in the short direction intersecting the longitudinal direction of the top plate portion 20, a reflector portion 22 that is bent downward from these side plate portions 21 and expands downward, end plate portions 23 arranged at both ends in the longitudinal direction, and a frame portion 24 provided around the lower ends of the reflector portion 22 and the end plate portions 23, and has an open bottom. The frame portion 24 is positioned in contact with the lower side of the ceiling plate and covers the recessed opening when the fixture body 16 is embedded and installed in the recessed opening of the ceiling plate. The top plate portion 20, the side plate portions 21 on both sides, and the upper sides of the end plate portions 23 on both ends form a main body portion 25 with an open bottom, and a light source unit 17 is detachably attached to the lower side of this main body portion 25.

[0012] The top plate portion 20 is provided with a pair of openings 28 at positions facing a pair of suspension bolts 11 on the first end 12 side and the second end 13 side, and a wiring hole 29 is provided near the opening 28 on the first end 12 side of the fixture body 16, but closer to the first end 12 than the opening 28. The openings 28 are rectangular (for example, approximately square), with an opening area larger than the wiring hole 29, and an opening width close to the width of the short side of the top plate portion 20. There are two wiring holes 29, one for power and one for dimming, and they are provided side by side in the short side direction of the top plate portion 20. Annular bushings 30 are attached to the edges of the wiring holes 29.

[0013] On both sides of the side plate portion 21, mounting holes 31 and hooking holes 32 are provided at both ends of the side plate portion 21, near the opening 28 of the top plate portion 20, and on the central side of the fixture body 16 relative to the opening 28. The mounting holes 31 are circular in shape and screwable, and are located on the central side of the fixture body 16 relative to the hooking holes 32. The hooking holes 32 are located on the opposite end side of the fixture body 16 relative to the central side of the mounting holes 31. The hooking holes 32 have a through-hole portion 33 which is wider in the vertical direction, and a hooking hole portion 34 which is narrower in the vertical direction than the through-hole portion 33 and is located on the end side of the fixture body 16, and are formed in a substantially L-shape with the lower edges of the through-hole portion 33 and the hooking hole portion 34 communicating at the same height.

[0014] The end plate portions 23 are provided with end face holes 35 for feed-through wiring that communicate with the main body portion 25.

[0015] As shown in Figure 3, a terminal block 37 and a power supply unit 38 are installed inside the fixture body 16. Between the openings 28 at both ends of the top plate portion 20, the terminal block 37 is installed on the first end 12 side, and the power supply unit 38 is installed on the second end 13 side of the terminal block 37. The terminal block 37 and the power input section of the power supply unit 38 are electrically connected by wiring. The terminal block 37 is electrically connected to the external power lines that are drawn into the fixture body 16 through the wiring holes 29 or openings 28, and sends the AC power, which is the external power supplied by the power lines, to the power supply unit 38. The signal line that transmits the dimming signal is drawn into the fixture body 16 through the wiring holes 29 or openings 28, and then electrically connected to the signal input section of the power supply unit 38. The power supply unit 38 is long and is installed along the longitudinal direction of the fixture body 16. The power supply unit 38 receives AC power and a dimming signal, converts the AC power into a predetermined illuminating power which is DC power according to the dimming signal, and supplies it to the light source unit 17, thereby dimming and illuminating the light source unit 17.

[0016] Furthermore, as shown in Figures 1 and 2, mounting members 40 for attaching to the suspension bolts 11 and fixing members 41 for fixing the mounting members 40 to the fixture body 16 are provided on both ends of the fixture body 16 in the longitudinal direction of the fixture body 16.

[0017] The mounting member 40 is used as an extension mounting fitting for connecting the appliance body 16 and the suspension bolt 11 when there is a distance between the height where the lighting device 10 is installed and the suspension bolt 11. As shown in FIGS. 1 to 4, the mounting member 40 is made of metal and has a mounting surface portion 42 on the upper surface side that is attached to the suspension bolt 11 and side surface portions 43 on both sides that are attached to the appliance body 16. An insertion groove 44 through which the suspension bolt 11 is inserted is provided in the mounting surface portion 42 in a long groove shape corresponding to the longitudinal direction of the appliance body 16. The side surface portions 43 on both sides are bent downward from both sides of the mounting surface portion 42 corresponding to the short side direction of the appliance body 16, and a substantially L-shaped arrangement portion 45 that is arranged on the top plate portion 20 of the appliance body 16 and on the outer surfaces of the side plate portions 21 on both sides is provided at the lower part. The arrangement portion 45 is fitted and positioned at the corner formed by the top plate portion 20 and the side plate portion 21.

[0018] A notch portion 46 is provided at the center of the mounting member 40, extending from the mounting surface portion 42 to the vicinity of the arrangement portions 45 of the side surface portions 43 on both sides. Due to the notch portion 46, the mounting surface portion 42 is divided into two, and one of the two mounting surface portions 42 arranged on the end side of the appliance body 16 is arranged at a position facing above the opening 28 of the top plate portion 20 and is attached to the suspension bolt 11. Width restricting portions 47 are bent from the lower edge of the notch portion 46 toward the opposite side surface portion 43 on both side surface portions 43. By the tip sides of the width restricting portions 47 from both side surface portions 43 abutting against each other, it is restricted that the width between the side surface portions 43 on both sides becomes narrower than a predetermined width.

[0019] The fixing member 41 is made of metal and has a holding portion 48 for holding the mounting member 40 and mounting portions 49 on both sides that are attached to the side plate portions 21 on both sides of the appliance body 16. The holding portion 48 has an upper surface holding portion 50 that is fitted into the notch portion 46 of the mounting member 40 and arranged on the side surface portions 43 on both sides, and side surface holding portions 51 on both sides that engage with and hold the outer surfaces of the side surface portions 43 on both sides of the mounting member 40. A hole portion 52 is provided in the center of the upper surface holding portion 50 to avoid interference with the tip portion of the width restricting portion 47 of the mounting member 40.

[0020] The attachment part 49 is disposed on the outer surface of the side surface part 43 of the appliance main body 16. The attachment part 49 is provided with a screw attachment part 54 that is attached to the side plate part 21 of the appliance main body 16 with a screw 53 at a position on the center side of the appliance main body 16, and a hook part 55 that is hooked on the hook hole 32 of the side plate part 21 is provided at a position on the end side of the appliance main body 16 with respect to the screw attachment part 54.

[0021] The screw attachment part 54 is an insertion hole through which the screw 53 is inserted. The screw 53 fixes a fixing member 41 that holds the attachment member 40 to the appliance main body 16 by screwing into the attachment hole 31 of the side plate part 21 through the screw attachment part 54 of the attachment part 49. The pitch between the screw attachment part 54 and the hook part 55 corresponds to the pitch between the attachment hole 31 provided in the side plate part 21 of the appliance main body 16 and the hook hole part 34 of the hook hole 32.

[0022] The hook part 55 is bent upward in a substantially U shape or a substantially V shape so as to face the inner surface side of the attachment part 49 from the lower end of the attachment part 49. As shown in FIG. 5, the hook part 55 is configured to be insertable and movable between the outer surface side and the inner surface side of the side plate part 21 through the insertion hole part 33 of the hook hole 32 of the side plate part 21, and in a state of being inserted and protruding from the insertion hole part 33 to the inner surface side of the side plate part 21, as shown in FIG. 6, it is arranged to be hooked on the hook hole part 34 by sliding from the insertion hole part 33 toward the hook hole part 34 on the end side of the appliance main body 16.

[0023] At the position of the fixing member 41 where the hook part 55 is disposed in the hook hole part 34, the screw attachment part 54 coincides with the attachment hole 31 of the side plate part 21, and the attachment part 49 is screwed and fixed to the side plate part 21 with the screw 53.

[0024] The attachment member 40 attached to the appliance main body 16 by the fixing member 41 has a lower surface opening 57 facing the top plate part 20, and an end surface opening 58 between the top plate part 20, the attachment surface part 42, and the side surface parts 43 on both sides are respectively opened. The lower surface opening 57 and the end surface opening 58 communicate with the opening 28 of the appliance main body 16.

[0025] As shown in Figure 3, the fixture body 16 is provided with a first mounting member 60 and a second mounting member 61 for detachably attaching the light source unit 17. The first mounting member 60 is located on the first end 12 side of the opening 28 and wiring hole 29 of the fixture body 16, and is positioned on the underside of the top plate portion 20 at the first end 12. The first mounting member 60 has a hook-shaped hook structure with the tip facing the center of the fixture body 16 raised upwards. The second mounting member 61 is located between the second end 13 and the opening 28 of the fixture body 16, and is positioned closer to the opening 28 than the second end 13, and is positioned on the underside of the top plate portion 20 so as to hang downwards. The second mounting member 61 is provided with a hook hole 62.

[0026] Furthermore, as shown in Figure 1, the light source unit 17 includes a long chassis 70, a light source module (not shown) positioned on the underside of the chassis 70, a light-transmitting cover 71 that covers the light source module and is attached to the chassis 70, a first mounting spring 72 attached to the first end 12 side on the upper surface of the chassis 70, and a second mounting spring 73 attached to the second end 13 side on the upper surface of the chassis 70.

[0027] The light-emitting module has multiple light-emitting elements mounted on a long circuit board. The light source wiring connected to the light-emitting module is routed to the top of the chassis 70, and when the light source unit 17 is attached to the fixture body 16, the light source wiring and the power supply wiring routed from the lighting power output section of the power supply unit 38 are detachably connected by a connector.

[0028] The first mounting spring 72 is a torsion spring made of spring wire and is attached to the upper surface of the chassis 70 by the first mounting bracket 74. The middle portion 75 of the first mounting spring 72 extends from the first mounting bracket 74 toward the first end 12 of the light source unit 17 and has a spring force in a direction toward approaching the chassis 70.

[0029] The second mounting spring 73 is a torsion spring made of spring wire and is attached to the upper surface of the chassis 70 by the second mounting bracket 76. The middle portion 77 of the second mounting spring 73 extends from the second mounting bracket 76 toward the second end 13 of the light source unit 17 and has a spring force in the direction toward the chassis 70.

[0030] When attaching the light source unit 17 to the fixture body, the intermediate portion 75 of the first mounting spring 72 of the light source unit 17 is hooked onto the first mounting member 60, and then the tip of the intermediate portion 77 of the second mounting spring 73 is inserted into the hooking hole 62 of the second mounting member 61 and hooked, so that the second end 13 of the light source unit 17 is temporarily suspended away from the fixture body 16. In this state, electrical connection between the light source unit 17 and the power supply unit 38 is made possible. Furthermore, as the second end 13 of the light source unit 17 is pushed upward, the intermediate portion 77 of the second mounting spring 73 is inserted into the hooking hole 62 of the second mounting member 61 and protrudes toward the end of the fixture body 16, and the spring force of the second mounting spring 73 pulls the second end 13 of the light source unit 17 toward the fixture body 16, thus attaching the light source unit 17 to the fixture body 16.

[0031] Next, to install the lighting device 10, the power and signal wires, which are wired on the ceiling panel, are passed through the wiring holes 29 of the fixture body 16 and brought into the fixture body 16. At this time, since F-cables with thick conductors are used as power wires, and two wires are routed inside the fixture body 16 toward the terminal block 37 and power supply unit 38, it may be difficult to perform wiring work from the wiring holes 29. In such cases, the power and signal wires may be brought into the fixture body 16 through an opening 28 that is opened near the wiring holes 29. Since the opening area of ​​the opening 28 is larger than that of the wiring holes 29, it is easier to bring the power and signal wires into the fixture body 16, and it is also easier to route them inside the fixture body 16, making the wiring work easier.

[0032] Next, the fixture body 16 is inserted into the recessed opening in the ceiling panel from the top, and the pair of suspension bolts 11 are passed through the insertion grooves 44 provided on the mounting surfaces 42 of the pair of mounting members 40. From the bottom side of the fixture body 16, nuts are screwed onto the suspension bolts 11 through the opening 28 and tightened with the nuts. As the nuts are tightened, the fixture body 16 moves upward, and the fixture body 16 is attached to the ceiling panel with the frame portion 24 of the fixture body 16 in contact with the bottom surface of the ceiling panel.

[0033] The power lines and signal lines are connected to the terminal block 37 and the power supply unit 38.

[0034] Subsequently, the light source unit 17 is attached to the fixture body 16 as described above.

[0035] In the lighting device 10 of this embodiment, a mounting member 40 positioned above the fixture body 16 can be attached to the fixture body 16 by a fixing member 41.

[0036] In the installed state of the lighting device 10, even if the screws 53 that secure the fixture body 16 to the fixing member 41 loosen and come off due to vibration or other factors, the fixture body 16 will catch on the hook portion 55 of the fixing member 41, thus preventing the fixture body 16 from coming off the mounting member 40 attached to the suspension bolt 11.

[0037] Furthermore, the side plate portion 21 of the fixture body 16 is provided with an insertion hole portion 33 through which the hook portion 55 of the fixing member 41 can be inserted, and a hook hole portion 34 into which the hook portion 55 slides from the insertion hole portion 33 toward the end of the fixture body 16. The mounting portion 49 of the fixing member 41 is attached to the side plate portion 21 by a screw 53 when the hook portion 55 slides from the insertion hole portion 33 toward the hook hole portion 34. Therefore, even if one end of the fixture body 16 comes off the mounting member 41, as one end of the fixture body 16 descends, the hook hole portion 34 located on the other end of the fixture body 16 will catch on the hook portion 55, preventing the fixture body 16 from coming off the hook portion 55 and thus preventing the fixture body 16 from falling.

[0038] Furthermore, in the lighting device 10 of this embodiment, the power supply unit 38 is located in the center of the longitudinal direction of the fixture body 16, and a wiring hole 29 is provided on one end of the fixture body 16. However, by providing openings 28 on both ends of the top plate portion 20 that face a pair of suspension bolts 11, and by attaching mounting members 40 for attaching to the suspension bolts 11 to the upper part of the fixture body 16, it is possible to attach it to the suspension bolts 11. Therefore, the opening 28 on one end of the fixture body 16 can be used for both attachment to the suspension bolts 11 and for wiring such as electric wires and signal wires.

[0039] Since the opening 28 and the wiring hole 29 are located close together at one end of the top plate portion 20 of the fixture body 16, both the opening 28 and the wiring hole 29 can be used when pulling power lines, signal lines, and other wiring into the fixture body 16, making wiring work easier and improving ease of installation.

[0040] The mounting member 40 has a mounting surface portion 42 that faces the opening 28 of the fixture body 16 and is attached to the suspension bolt 11, and side portions 43 that are provided on both sides of the mounting surface portion 42 that intersect the longitudinal direction of the fixture body 16 and are attached to the fixture body 16. The lower surface that faces the top plate portion 20 and the end faces (end face openings 58) between the top plate portion 20, the mounting surface portion 42 and the side portions 43 on both sides are open, so that wiring can be passed through the opening 28.

[0041] By providing the wiring hole 29 at a position closer to the end than the opening 28 at one end of the fixture body 16, both the opening 28 at one end and the wiring hole 29 can be used to pull the wiring into the fixture body 16.

[0042] A first mounting spring 72 is provided on one end of the light source unit 17, which is attached by hooking onto a first mounting member 60 provided on one end of the fixture body 16. A second mounting spring 73 is provided on the other end of the light source unit 17, which is attached by inserting it through a second mounting member 61 provided between the other end of the fixture body 16 and the opening 28 on the other end. This prevents the wiring that is pulled into the fixture body 16 from the opening 28 and wiring hole 29 on one end of the fixture body 16 from interfering with the first mounting spring 72 when attaching the light source unit 17 to the fixture body 16.

[0043] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of Symbols]

[0044] 10 Lighting devices 11 Suspension bolts 16. Main body of the device 20 Top panel 21 Side plate part 40 Mounting components 41 Fixing member 48 Holding part 49 Mounting part 53 screws 54 Screw mounting section 55 Hook part 33 Through hole 34 Hook hole

Claims

1. A long device body having a long top plate and side plates provided on both sides that intersect the longitudinal direction of the top plate; Mounting members are positioned on the upper ends of both longitudinal sides of the fixture body and attached to suspension bolts from the ceiling; A fixing member having a holding portion for holding the mounting member, and mounting portions provided on both sides of the holding portion and attached to the side plates on both sides of the fixture body, wherein the mounting portion is provided with a screw mounting portion at a position on the central side of the fixture body for attachment to the side plate with a screw, and a hook portion is provided at a position on the end side of the fixture body closer to the end for hooking onto the side plate; A lighting device characterized by having the following features.

2. The side plate portion of the device body is provided with an insertion hole portion through which the hook portion can be inserted, and a hook hole portion into which the hook portion slides toward the end of the device body from the insertion hole portion. The mounting portion of the fixing member is attached to the side plate portion by the screw when the hook portion is slid from the insertion hole portion to the hook hole portion. The lighting device according to feature 1.

Images