JP2003331638A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce cost for a luminaire to be equipped with a ceiling. <P>SOLUTION: An electrical unit 25 and a light controlling body 26 are fitted inside a frame 23 to compose the luminaire 20. An aperture 30a is formed at a top board 23a of the frame 23. The luminaire 20 is located on the ceiling 1 by engaging a clip 12 engaged with the aperture 30a with a C channel 10. A ceiling board 21 is put on a ceiling board supporting portion 23c projecting to both sides from a side board 23b of the frame 23. Versatility is improved by using the electrical unit 25 which has a different body from the frame 23. The frame 23 can be reinforced by a base 41 of the electrical unit 25. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture installed on a ceiling.

[0002]

2. Description of the Related Art Conventionally, in order to mount an embedded luminaire on a conventional ceiling, a hanging bolt hanging from a ceiling structure is fixed by screwing a nut, or a supporting member supported by the hanging bolt. The M-bar is attached to the C channel, and the instrument body is fixed to the M-bar with screws. Further, when the decorative gypsum board is attached to the ceiling base, a mounting screw is used, and the mounting screw is screwed into the ceiling base from the lower surface of the decorative gypsum board to be fixed. However, in such a conventional construction method, in addition to the work of installing the lighting fixture, the work of fixing the ceiling board to the M bar with screws, the mounting holes of the embedded lighting fixture are opened in the ceiling board, the M bar, and the C channel. This requires additional work, and moreover, a work of attaching a hanging bolt for a lighting fixture, which requires a longer construction period and makes it difficult to reduce costs. In the so-called system ceiling method, a T-bar attached to a suspension bolt is used, and the edge of the ceiling board is placed on the T-bar to install the ceiling board. However,
In such a configuration, it is necessary to install the T-bar, and it is not always easy to reduce the cost.

In addition, when the existing ceiling is refurbished, that is, renewed, the hanging bolt, C channel, and M bar or T bar, ceiling board, and luminaire are also prepared according to the plan of the illuminator after the renewal. removal,
There is a problem that it is difficult to reduce cost and construction period because new construction is required.

[0004]

As described above, in the conventional construction method using the M bar, in addition to the installation work of the lighting equipment,
Work to fix the ceiling board to the M bar with screws, work to open the mounting holes for the embedded lighting fixture in the ceiling board, M bar, and C channel, and also work to attach hanging bolts for the lighting fixture Therefore, there is a problem that the construction period becomes long and it becomes difficult to reduce the cost. Further, in the system ceiling construction method using the T-bar, it is necessary to install the T-bar, and there is a problem that cost reduction is not always easy. Also, when renewing the existing ceiling,
Hanging bolt, C channel, and M bar or T
The bar, ceiling board, and lighting equipment must be removed and new construction must be performed, making it difficult to reduce costs and construction period.

The present invention has been made in view of the above points, and an object thereof is to provide a lighting fixture which can easily reduce the cost.

[0006]

According to a first aspect of the present invention, there is provided a lighting fixture comprising a ceiling plate support portion for supporting a supported portion and a ceiling plate which are attached to a field edge receiving member provided on the ceiling portion through a mounting member. And a base body attached to the inside of the frame body and an electrical component unit equipped with the lighting device attached to the base body.

In this structure, the lighting fixture is attached to the field edge receiving member through the attachment member, and the ceiling plate is supported by the lighting fixture, so that the ceiling plate can be installed. For this reason,
By using the lighting equipment as a base of the ceiling board, so to speak,
It becomes possible to eliminate or reduce the members that support the ceiling plate, and the work of fixing the ceiling plate to the M bar is not required, making it possible to reduce the overall construction period and cost of the ceiling work and lighting equipment work. Become. Also, by using the support member as a field edge receiving member and supporting the lighting fixture through the mounting member,
The same construction as a system ceiling equipped with a T-bar can be performed without using a T-bar. Further, since the electric component unit including the lighting device is provided separately from the frame body, the versatility is improved by appropriately combining the frame body and the electric component unit.

[0008] By using a C channel as the field edge receiving member and using a clip for connecting the C channel and the M bar as a mounting member, a dedicated metal fitting is not required, and it is inexpensive and widely used in conventional ceilings. The lighting fixture can be mounted using the mounting bracket that connects the C channel and the M bar, and the cost can be easily reduced. Then, the supported portion of the frame body may be formed with a hole for locking the clip, which simplifies the configuration and reduces the manufacturing cost. In addition, as the ceiling plate, a flat plate member such as a decorative gypsum board, or a plate member formed by combining a plurality of members is allowed. For example, a rock wool sound absorbing plate may be provided with an H bar as a reinforcing plate. It can be a combination. In addition, the lighting device, for example,
It has an inverter device or a terminal block. Further, for example, a suitable lamp socket for mounting one or multiple straight tube type or curved tube fluorescent lamps is attached to the electrical component unit. Further, the frame body and the base body of the electrical component unit may be formed by bending a metal plate or the like to be integrally formed, or may be formed by combining a plurality of members.

A luminaire according to a second aspect is the luminaire according to the first aspect, wherein the frame body includes a pair of side plate portions, and the base of the electrical component unit extends along the board portion and both side portions of the board portion. And a facing portion facing each side plate portion.

In this structure, the electrical component unit is
Since the facing portion of the electrical unit is disposed between the side plate portions of the frame body and faces the side plate portions, deformation of the frame body is suppressed when the lighting fixture is installed and the shape of the frame body is maintained.

According to a third aspect of the present invention, in the lighting fixture according to the first or second aspect, the frame body includes a pair of side plate portions, and plate-shaped frame plate portions facing each other along the side plate portions and the frames. It is provided with a light control body provided with a wing plate portion bent and provided between the plate portions.

In this structure, since the portion supporting the wing plate portion of the light control body is a plate-shaped frame plate portion facing each other along the side plate portions, the edge is bent to form a thick structure. Compared to the configuration, the edge is made as thin as possible to secure a large opening area, enabling efficient lighting, and
The dark part of the luminaire is reduced and the appearance is improved.
Further, the structure can be simplified, and the manufacturing cost can be easily reduced. Further, the light control body is arranged between the side plate portions of the frame body, and the frame plate portion faces each side plate portion, so that the deformation of the frame body is suppressed when the lighting fixture is installed and the shape of the frame body is maintained. To be done.

By using the inner surface of the frame plate as a reflecting surface, more efficient illumination can be achieved.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a lighting equipment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of a ceiling system provided with a lighting equipment of the present invention, and FIG. 2 is a perspective view of the lighting equipment and the ceiling system seen from above.
3 is a perspective view of the lighting fixture and the ceiling system seen from below, FIG. 4 is a partially enlarged perspective view of the lighting fixture and the ceiling system seen from below, and FIG. Fig. 6 is a plan view, Fig. 6 is a side view of the same lighting fixture, Fig. 7 is a sectional view showing a state in which a light control body is attached to a frame of the same lighting fixture, and Fig. 8 is an electrical component unit of the same lighting fixture. 9 is a perspective view of a light control body of the same lighting equipment, FIG. 10 is a cross-sectional view showing another embodiment of the lighting equipment of the present invention, and FIG. FIG. 12 is a partial bottom view, FIG. 12 is a cross-sectional view showing a comparative lighting fixture, and FIG. 13 is a partial bottom view of the comparative lighting fixture.

In the figure, reference numeral 1 denotes a ceiling portion, and this ceiling portion 1
Is, for example, the ceiling of an office in an office building,
The ceiling system 2 is configured. The ceiling system 2 is provided with a plurality of hanging bolts 4 vertically fixed to a ceiling structure 3 such as a ceiling slab. A certain channel hanger 6 is attached, and further, a plurality of C channels 10 as field support members, which are supporting members, are supported by the channel hanger 6. And
Each C channel 10 has a substantially U-shaped cross section, and a plurality of C channels 10 are installed in parallel with each other.

Further, a plurality of lighting fixtures 20 are attached to the C channel 10 by a clip 12 as a mounting member having the same shape as a clip used for the M bar which is a field edge material. The board 21 is supported and the ceiling system 2 is configured.

The clip 12 is a metal fitting generally used for attaching the M bar to the C channel 10, that is, a field edge material / field edge receiving material connection metal fitting, and has a horizontal shape. The upper plate portion 12a and a side plate portion 12b bent downward from one side of the upper plate portion 12a are formed into a substantially L-shaped cross section, and can be bent from the other side portion of the upper plate portion 12a. The claw portion 12c is provided in a protruding manner, the side plate portion 12b is provided with a notch 12d on both sides at the lower end portion thereof, and a pair of hook portions 12e directed upward are formed.

The ceiling board 21 is a so-called H-bar type, and is a ceiling board 21a such as a quadrangular flat rock rock sound absorbing board as a ceiling board body, and a reinforcing material for preventing the ceiling board 21a from hanging down. It is composed of an H bar 21b as a ceiling plate reinforcing portion. The H-bar 21b has a substantially H-shaped cross section and is attached to the upper surface of the ceiling board 21a or inserted between the ceiling boards 21a adjacent to each other to support the ceiling board 21a. .

The luminaire 20 is an embedded luminaire, and is provided with a frame body 23 which is a chassis, an electric component unit 25 attached to the frame body 23, a light control body 26, a lamp L and the like. .

The frame 23 is formed by bending or extruding a metal plate, and has a slender rectangular horizontal top plate 23a and vertically downward from both sides of the top plate 23a. A pair of bent side plate portions 23b and a ceiling plate support portion 23c, which is a projecting portion horizontally bent from the lower end portion of the side plate portion 23b to both outsides, are integrally formed, and the lower surface thereof has an irradiation opening 23d. Has become. That is, the ceiling plate support portion 23c is provided so as to project to both sides of the main body portion of the frame body 23 including the top plate portion 23a and the side plate portion 23b. Further, in the present embodiment,
The ceiling plate support portion 23c has a tip portion folded back to the upper side. Then, the portion surrounded by the top plate portion 23a and the side plate portion 23b becomes a storage portion, and in this storage portion, the electrical component unit 25 and the light control unit 2 are provided.
6 and lamp L etc. are stored. The supported portion 30 is provided at a predetermined position on the top plate portion 23a of the frame body 23. The supported portion 30 has a hole portion 30a, and the hole portion 30a is formed in a long hole shape whose longitudinal direction is the longitudinal direction of the top plate portion 23a. Further, on the lower surface of the top plate portion 23a, that is, on the inner surface side, a metal fitting 32 which is an electric component unit positioning metal fitting
Are installed in multiple numbers. And this metal fitting 32
Is formed by bending a metal plate, and both end portions 32a are fixed to the top plate portion 23a by rivets or the like,
The unit positioning portion 32b, which is an intermediate portion, is located substantially at the center in the height direction of the housing portion of the frame body 23. Further, the side plate portions 23b are formed in parallel with each other, and the lower side portion of the inner surface is a reflecting surface coated with, for example, white. That is, the frame body 23 including the side plate portion 23b constitutes a part of the reflection plate. Further, the side plate portion 23b is provided with a pair of square holes 34 and 35 that constitute a light control body mounting portion, and the square holes 34 and 35 are locked in the square holes 34 and 35 and a fixing tool 35a such as a rivet is attached thereto. The fixture 36 is attached using. That is, the attachment 36 is made of a metal spring material or the like, is arranged along the outer side of the side plate portion 23b, and has an engaging portion 36a that is engaged with the upper square hole 35 at the upper end portion. At the same time, a curved elastic locking portion 36b is provided near the lower end so as to project in and out of the storage portion through the lower square hole 34.

The electrical unit 25 includes a base 41 and a lighting device 42 attached to the base 41. The base body 41 is formed by bending a single metal plate or the like, and has a horizontal substrate portion 41a and a pair of rising portions vertically bent upward from both side portions of the substrate portion 41a. The facing portion 41b is provided. At least the lower surface of the substrate 41a is a reflective surface coated with, for example, white. That is, the base 41 including the substrate portion 41a is
It constitutes a part of the reflector. Further, mounting bolts 44, which are unit mounting means, are attached to the board portion 41a at a plurality of locations toward the upper side. Also, the lighting device 42
Is an inverter device 46, a terminal block 47, a lamp socket 48,
Also, an electric wire 49 for connecting them is provided. Then, the inverter device 46 and the terminal block 47 are attached to the upper surface side of the substantially central portion of the substrate portion 41a in the longitudinal direction, and the lamp socket 48 is a U-shaped bent tube fluorescent lamp in the present embodiment. The base portion of the lamp L is mounted, and is attached to the substrate portion 41a in the vicinity of one end portion in the longitudinal direction so as to project downward. Appropriate lamp socket
It is possible to mount various lamps L by using the electrical component unit 25 equipped with 48. For example, as shown in FIG. 10, a lamp socket 48a in which one straight tube type fluorescent lamp is mounted is provided. It is also possible to provide a lamp socket in which two straight tube fluorescent lamps are mounted.

Further, the light control body 26 is called a baffle or a louver, and is an accessory for lighting control for controlling the light of a lighting fixture whose entire surface is open. The direct light radiated from the lamp L and the reflector plate. In order to control the reflected light from the lamp L, a reflecting surface parallel to the longitudinal direction of the lamp L and a reflecting surface orthogonal to this reflecting surface are provided. Then, in the present embodiment, a pair of frame plate portions 51 on both sides and a plurality of wing plate portions 52 connecting between the frame plate portions 51 are formed by bending and cutting and raising one metal plate. ing. And the frame plate part
In the present embodiment, 51 is bent vertically upward from both sides of the wing plate portion 52, and the surfaces of the frame plate portion 51 facing each other, that is, the inner side surfaces and both surfaces of the wing plate portion 52 are , For example, it is a reflective surface that is painted white. That is, the light control body 26 including the frame plate portion 51 constitutes a part of the reflection plate. Further, the wing plate portion 52 is orthogonal to the frame plate portion 51 on a plane, and is cut and raised downward substantially vertically, between the frame plate portions 51 and between the wing plate portions 52. The portion between them is the opening 54. In addition, the frame plate portion 51 and the wing plate portion 52
In the connecting portion with and, substantially horizontal connecting portions 56 having a triangular shape in plan view are provided at both ends of the blade portion 52. Further, the frame plate portion 51 is provided with a square hole-shaped attachment receiving portion 58 located near each end portion in the longitudinal direction, and
The edge portion of the upper end is bent so as to incline inward toward the upper side, and a guide portion 59 is formed.

In order to assemble the lighting fixture 20, first, the electrical equipment unit 25 is inserted inside the frame body 23, and the board positioning portion 41a is abutted against the unit positioning portion 32b of the metal fitting 32. Part 32b or top plate part 23a
The electrical component unit 25 is fixed to the inside of the frame body 23 by screwing a nut (not shown) onto the mounting bolt 44 that protrudes upward. Then, from this state, the lamp L is attached to the lamp socket 48 of the electric component unit 25. Further, using the guide portion 59 as a guide, the light control body 26 is inserted inside the frame body 23, and the elastic locking portion 36b of the fixture 36 attached to the light control body mounting portion is engaged with the mounting receiving portion 58. Thus, the light control body 26 is attached to the frame body 23 to configure the lighting fixture 20.

Then, for the installation work of this lighting fixture 20, that is, the construction work of the ceiling part 1, the clip 12 having the same shape as that used when attaching the M bar to the C channel 10 is used. The hook 12e is inserted into the hole 30a of the supported portion 30 from the upper side, the clip 12 is rotated about 90 degrees, and the hook 12e is brought into contact with and locked by the supported portion 30 around the hole 30a. In this state, the upper plate portion 12a of the clip 12 is placed on the upper side of the C channel 10, and the claw portion 12c is bent downward by using a hand or a jig so that the clip 12 is moved to the C channel.
Attach to 10. Then, in this state, the lighting fixture 20 is cross-supported by the C channel 10 via the clip 12.

In the hole 30a of the supported portion 30 at one place,
A plurality of clips 12 can be locked to increase the strength.
For example, as shown in FIG. 2, after the clip 12 is hooked on one side of the C channel 10, the clip 12 is also hung on the other side of the clip 12 so that two holes are provided at one hole 30a.
Individual clips 12 can be locked.

Further, both ends in the longitudinal direction of the frame body 23 are adjacent to each other by using connecting brackets having a substantially U-shaped cross section and the like.
Frame 23, or if necessary, frame 23
An end plate that closes the end is attached to the end.

Further, in this way, the luminaire 20 is mounted on the ceiling 1
Installed on the ceiling plate 2 on the ceiling plate support portion 23c of the frame 23.
The ceiling can be constructed by mounting the edge of 1.

As described above, according to the luminaire 20 of the present embodiment and the ceiling system 2 in which the C channel 10 and the ceiling plate 21 are added to the luminaire 20, the clip 12 is used for the C channel 10 which is the supporting member. The embedded lighting fixture 20 can be locked and attached, and the ceiling plate 21 can be constructed by mounting it on the ceiling plate support portion 23c of the lighting fixture 20.

That is, the support member is the C channel 10, and the supported portion 30 of the frame body 23 has a clip having the same shape as the mounting bracket used when attaching the M bar to the C channel 10.
Since the hole 30a for locking 12 is provided, a clip 12 which is a mounting bracket for mounting the M bar on the C channel 10 which is an inexpensive mounting bracket which is widely used in the conventional construction method is not required because a dedicated bracket is not required. The lighting fixture 20 can be attached by using the above-mentioned structure, and the members supporting the lighting fixture 20 such as the T bar can be eliminated or reduced, and the installation cost of the lighting fixture 20 can be easily reduced.

The frame 23 of the luminaire 20 can also be used as a so-called ceiling base, so that members such as M bar supporting the ceiling plate 21 can be eliminated or reduced, and the M of the ceiling plate 21 can be eliminated.
The work of fixing screws to the bar can be eliminated, and the overall construction period and cost of the ceiling work can be reduced. Further, since the ceiling board support portion 23c is provided with the ceiling board support portion 23c which is a projecting portion that projects in a substantially horizontal shape to support the ceiling board 21, a system ceiling provided with the T bar without using the T bar. The same construction method as described above becomes possible, the installation work can be easily performed in a short time, the structure of the frame body 23 of the lighting fixture 20 can be simplified, and the manufacturing cost can be easily reduced.

The electrical equipment unit 25 equipped with the lighting device 42
Since the unit is a unit separate from the frame body 23, the versatility can be improved by combining the frame unit 23 and the electrical unit 25, which are suitable for various types or the number of lamps L.

Further, the electrical equipment unit 25 is arranged between the side plate portions 23b of the frame body 23, and the facing portion 4 of the base 41 of the electrical equipment unit 25 is arranged.
Since the 1b is in a state of facing and contacting the side plate portions 23b in parallel and closely, it is possible to consider the lighting fixture 20 during construction.
It is possible to function as a reinforcing member for suppressing the inward deformation (deflection) of the frame 23. Therefore, a separate reinforcing member or the like becomes unnecessary, and the manufacturing cost can be reduced.

Further, since the base body 41 of the electrical equipment unit 25 also functions as a reflection plate, a separate reflection plate or the like is unnecessary, and the manufacturing cost can be easily reduced.

Further, the side plate portion 23b of the frame body 23 of the lighting fixture 20.
Since it also functions as a side reflector, a separate reflector or the like is unnecessary, the structure of the device can be simplified, and the manufacturing cost can be easily reduced.

Further, even when the ceiling is renewed, that is, when the existing ceiling is refurbished, in the present embodiment, the frame 23 of the lighting fixture 20 is installed below the C channel 10 and interferes with the C channel 10. Do not remove the existing C channel 10 and hanging bolt 4
20 can be arranged, and it is possible to reduce the cost and the construction period.

The light suppressor 26 mounted inside the frame 23 includes a pair of frame plate portions 51 on both sides provided with reflecting surfaces along the longitudinal direction of the lamp L, and a reflection plate orthogonal to the longitudinal direction of the lamp L. Since the wing plate portion 52 having the surface is integrally formed by bending, cutting and raising a single metal plate, the structure is simplified and the manufacturing cost is reduced. In addition, each frame plate portion 51 has a frame body 23.
Since it is a single plate-shaped rising part that is close to and parallel to the inner surface of the side plate part 23b, it is possible to reduce the darkness due to the edge, secure a large opening area, improve the efficiency of the equipment, and reduce bending work. However, the manufacturing cost can be reduced.

That is, for example, as in the configuration shown in FIGS. 12 and 13, with respect to the frame portion 61 parallel to the longitudinal direction of the lamp L, the side frame 62 close to the frame body 23 and the reflecting surface portion facing the lamp L are provided. In the configuration in which the section 63 is U-shaped through the bent edge portion 64, darkness is caused by the edge portion 64, and the width dimension W of the irradiation opening of the device, that is, the area is reduced, and The amount decreases and the instrument efficiency deteriorates. In this respect, according to the light control body 26 of the present embodiment, the U-shaped bent edge portion is eliminated and the inner surface of the frame plate portion 51, which is the rising portion, is used as a reflecting surface, and the frame plate portion is
Since 51 is located as close to the frame body 23 as possible, for example, as shown in FIG.
0 and the embodiment shown in FIG. 11, the edge can be made as thin as possible to reduce the darkness caused by the edge and improve the appearance.
The width dimension W of the irradiation opening 23d, that is, the reduction of the opening area due to the attachment of the lighting device can be suppressed, the amount of light emitted from the lighting device 20 can be secured, and the efficiency of the lighting device 20 can be improved.
Bending can be reduced and manufacturing cost can be reduced.

In the embodiment shown in FIGS. 10 and 11, the frame plate portion 51 of the light control body 26 is bent downward from the wing plate portion 52, that is, the connection portion 56.

In each of the above-mentioned embodiments, the ceiling plate 21 is not limited to the H-bar system in which H-bars are combined to reinforce the asbestos sound-absorbing plate, or one quadrangular flat plate such as a decorative gypsum boat. The board and the one in which a plurality of members are combined into a substantially plate shape are allowed.

Further, the frame body 23 is not limited to one formed integrally by bending a coated metal plate, but also one formed by combining a plurality of members.

The electrical unit 25 can be engaged with and attached to the frame 23 by using a so-called latch or the like to facilitate the assembling work and reduce the cost.

A frame plate portion which is a louver frame portion of the light control body 26
The side plates 23b of the frame 23, that is, the pair of parallel plate-shaped members 51 along the longitudinal direction of the frame member 23, that is, the longitudinal direction of the lamp L, may have a frame shape such as a square. Further, the wing plate portion 52 of the light control body 26 is orthogonal to the longitudinal direction of the frame plate portion 51, that is, the lamp L, and is formed vertically downward, and may be inclined in an appropriate direction.

[0044]

According to the lighting equipment of the first aspect, the lighting equipment can be attached to the field edge receiving member through the attachment member, and the ceiling board can be supported by the lighting equipment to install the ceiling board. Therefore, by using the lighting fixture as a so-called ceiling plate base, it is possible to abolish or reduce the members that support the ceiling plate, and the work of fixing the ceiling plate to the M bar is no longer required. It is possible to reduce the overall construction period and cost of construction of lighting equipment. In addition, the support member is used as a field edge receiving material,
By supporting the luminaire via the mounting member, it is possible to perform the installation in the same manner as a system ceiling equipped with a T-bar without using the T-bar. Moreover, since the electrical unit provided with the lighting device is provided separately from the frame body, the versatility can be improved by appropriately combining the frame body and the electrical unit.

According to the lighting equipment of the second aspect, the electric equipment unit is arranged between the side plate portions of the frame body, and the facing portion of the electric equipment unit faces each side board portion. The deformation of the body can be suppressed and the shape of the frame can be maintained.

According to the lighting equipment of the third aspect, since the portions supporting the wing plate portion of the light control body are plate-like frame plate portions facing each other along the side plate portions, the edges are bent and the like. Compared to the structure with a thick structure, the edge is made as thin as possible to secure a large opening area and efficient illumination is possible.
The dark part of the lighting fixture can be reduced and the appearance can be improved. Further, the structure can be simplified and the manufacturing cost can be easily reduced. Further, the light control body is arranged between the side plate portions of the frame body, and the frame plate portion faces each side plate portion, so that the deformation of the frame body is suppressed when the lighting fixture is installed and the shape of the frame body is maintained. it can.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a ceiling system provided with a lighting fixture of the present invention.

FIG. 2 is a perspective view of the lighting fixture and the ceiling system seen from above.

FIG. 3 is a perspective view of the lighting fixture and the ceiling system seen from below.

FIG. 4 is an enlarged perspective view of a part of the lighting fixture and the ceiling system when viewed from below.

FIG. 5 is a plan view of the same lighting fixture.

FIG. 6 is a side view of the same lighting fixture.

FIG. 7 is a cross-sectional view showing a state in which a light control body is attached to a frame body of the same lighting fixture.

FIG. 8 is a perspective view of an electric component unit of the same lighting fixture.

FIG. 9 is a perspective view of a light control body of the same lighting fixture.

FIG. 10 is a sectional view showing another embodiment of the lighting fixture of the present invention.

FIG. 11 is a bottom view of a part of the same lighting fixture.

FIG. 12 is a cross-sectional view showing a lighting fixture of a comparative example.

FIG. 13 is a bottom view of part of the lighting fixture of the comparative example.

[Explanation of symbols]

1 ceiling 10 C channel as a field receiver 12 Clip as a mounting member 20 lighting fixtures 21 ceiling plate 23 frame 23b Side plate 23c Ceiling board support 25 Electrical unit 26 Light control 30 Supported part 41 Base 41a Board part 41b Opposite part 42 Lighting device 51 Frame plate 52 Feather part

Claims (3)

[Claims] 1. A frame body having a ceiling plate supporting portion for supporting a supported portion and a ceiling plate, which are mounted on a field receiving member provided on the ceiling portion through a mounting member; and is mounted inside the frame body. An illuminating device comprising: a base and an electrical unit equipped with a lighting device attached to the base. 2. The frame body includes a pair of side plate portions, and the base body of the electrical component unit includes a substrate portion and facing portions facing both side plate portions along both sides of the substrate portion. The lighting fixture according to claim 1. 3. The frame body includes a pair of side plate portions, and plate-shaped frame plate portions facing each other along the side plate portions, and a wing plate portion bent between the frame plate portions. The lighting fixture according to claim 1 or 2, further comprising a light body.