JP7286911B2 - Method of constructing a lighting system and building - Google Patents

Description

The present disclosure relates to lighting devices and methods of constructing buildings.

When a plurality of lamps are installed adjacent to each other, if there is distortion in the building material (for example, ceiling material or wall material) to which the lamps are attached, a step (positional deviation) may be formed between adjacent parts of the lamps.

For example, in Patent Document 1, when connecting two lighting units, a protrusion provided on the end cover of one lighting unit is inserted into an insertion hole provided on the end cover of the other lighting unit. A configuration is disclosed.

JP 2018-185910 A

SUMMARY OF THE INVENTION An object of the present disclosure is to provide a lighting apparatus and a method of constructing a building that can give a sense of unity between adjacent lighting fixtures without being conscious of seams.

According to one aspect of the present disclosure, a lighting device includes a first lamp and a second lamp. Each of the first lamp and the second lamp includes a chassis having a light source arrangement surface and a back surface opposite to the light source arrangement surface, and a plurality of light sources arranged on the light source arrangement surface. a main body, a fitting adapter that is provided on the rear surface of the chassis and is fitted into a mounting hole formed in a building material, a main surface facing the light source arrangement surface with a space therebetween, and covering the side of the space. and a translucent cover having a side portion. The first lamp and the second lamp are adjacent to each other with the side portions thereof in contact with each other. The first lamp has a first connecting member provided on the back surface of the chassis, and the second lamp has a second connecting member provided on the back surface of the chassis. The first connecting member and the second connecting member are connected on the back surface in a state where the first lamp and the second lamp are adjacent to each other with the side portions in contact with each other.
In addition, according to one aspect of the present disclosure, a method for constructing a building includes, among a plurality of wirings arranged in a ceiling space of a ceiling formed by arranging a plurality of ceiling materials, a plurality of wirings which are suspended when installed in the ceiling. A step of providing a wiring with a connector as a wiring for electrically connecting with a light-weight large lighting fixture which is a lighting fixture not fixed by a material, and a ceiling formed through an opening provided in the ceiling material a step of connecting the wiring with a connector arranged in the ceiling space above the ceiling and a power adapter with a connector of the wiring with a connector; For each of the large lightweight lighting fixtures, a step of electrically connecting the large lightweight lighting fixture to the power adapter; a step of inserting the first illumination lamp through an opening in the ceiling material and installing the first illumination lamp in the ceiling material; a step of connecting the second lighting fixture to the first lighting fixture and passing it through the opening of the ceiling material, and installing the second lighting fixture connected to the first lighting fixture to the ceiling material; and adjusting the position of the first illumination lamp or the second illumination lamp installed in the ceiling with respect to the ceiling material within a predetermined range in which the light and large illumination lamp can be moved.

Advantageous Effects of Invention According to the present disclosure, it is possible to provide a lighting device and a method of constructing a building that can give a sense of unity between adjacent lighting fixtures without being conscious of seams.

1 is a side view of a lamp according to one embodiment of the present invention; FIG. 1 is a plan view of a light emitting surface of a lamp according to one embodiment of the present invention; FIG. FIG. 2 is a plan view of the back surface of the lamp according to one embodiment of the present invention; 1 is a cross-sectional view along the short direction of a lighting fixture according to an embodiment of the present invention; FIG. FIG. 4 is an enlarged view of a portion of FIG. 3; FIG. 6 is a cross-sectional view taken along the line XX in FIG. 5; FIG. 7 is an enlarged view of a portion of FIG. 6; FIG. 3 is a perspective view of elements located on the back side of the ceiling material in the lighting fixture of one embodiment of the present invention; 1 is a perspective view of a mounting bracket for mounting the lighting fixture of one embodiment of the present invention to a ceiling material; FIG. It is a perspective view showing the fitting structure of the attachment metal fitting and fitting adapter of one Embodiment of this invention. It is a cross-sectional perspective view showing the fitting structure of the mounting bracket of one Embodiment of this invention, and a fitting adapter. FIG. 4 is a schematic side view showing a method of connecting two lamps in one embodiment of the present invention; FIG. 4 is a schematic side view showing a method of connecting two lamps in one embodiment of the present invention; FIG. 4 is a schematic side view showing a method of connecting two lamps in one embodiment of the present invention; FIG. 4 is a perspective view showing a connection structure between a fitting adapter and a removal member according to one embodiment of the present invention; FIG. 4 is a perspective view showing a connection structure between a fitting adapter and a removal member according to one embodiment of the present invention; FIG. 6 is a plan view similar to FIG. 5 for explaining the operation of removing the lamp according to the embodiment of the present invention; FIG. 4 is an internal view of a side cap in the lighting fixture of one embodiment of the present invention; FIG. 4 is a schematic cross-sectional view of adjacent portions of two lamps in one embodiment of the present invention; FIG. 3 is a schematic cross-sectional view of a non-adjacent side end of a lamp according to an embodiment of the present invention; FIG. 10 is a plan view of the back surface of a lamp according to another embodiment of the present invention; It is a flow chart for explaining a flow of lighting installation in a process until a building is constructed. 1 is a schematic diagram showing an example of the structure of a living room in a building according to an embodiment; FIG. It is a schematic diagram describing another example of the structure of the living room of the building according to the embodiment. It is a figure which shows the structure of the ceiling space in construction of the building which concerns on embodiment. It is a figure for demonstrating the installation method of the lighting fixture which concerns on embodiment. It is a figure for demonstrating the installation method of the lighting fixture which concerns on embodiment. FIG. 7 is a diagram for explaining another example of the installation method of the illumination lamp according to the embodiment; FIG. 7 is a diagram for explaining another example of the installation method of the illumination lamp according to the embodiment;

Hereinafter, embodiments will be described with reference to the drawings. In addition, the same code|symbol is attached|subjected to the same element in each drawing.

FIG. 1 is a side view of a lamp 100 according to one embodiment of the invention.
FIG. 2 is a plan view of the light emitting surface of the lamp 100. FIG.
FIG. 3 is a plan view of the back surface of the lamp 100. FIG.
FIG. 4 is a cross-sectional view of the lighting fixture 100 along the short direction.

The lamp 100 has a rectangular outer shape, for example, and has a rectangular light emitting surface. The lamp 100 has a lamp body 10 , a translucent cover 30 and a fitting adapter 40 .

As shown in FIG. 4 , the lamp body 10 has a chassis 11 and a light source module 20 . The chassis 11 is preferably a metal plate, for example. The chassis 11 has a light source placement surface 11a and a back surface 11b on the opposite side.

As shown in FIG. 3, a fitting adapter 40 is provided on the rear surface 11b of the chassis 11. As shown in FIG. A lamp-side connector 43 having a socket structure, for example, is fixed to the upper surface of the fitting adapter 40 . A cushion material 13 is provided on the rear surface 11 b of the chassis 11 .

As shown in FIG. 4 , the light source module 20 is attached to the light source placement surface 11 a of the chassis 11 . The light source module 20 is screwed to the chassis 11, for example. The chassis 11 functions as a reinforcing plate and a heat sink for the light source module 20 . Further, on the rear surface 11b of the chassis 11, a plurality of unevennesses are formed extending in the longitudinal direction of the rectangular chassis 11 (the direction penetrating through the plane of FIG. 4). These unevennesses increase the surface strength of the chassis 11 .

The light source module 20 has a substrate 21 and a plurality of light sources 22 . The back surface of the substrate 21 is in contact with the light source placement surface 11 a of the chassis 11 . A plurality of light sources 22 are periodically arranged on the light source mounting surface of the substrate 21 (the surface opposite to the back surface in contact with the chassis 11). For example, the plurality of light sources 22 are arranged in a lattice with an equal pitch.

The light source 22 includes a light emitting element such as an LED (Light Emitting Diode). Moreover, the light source 22 can additionally include a phosphor layer and a resin member. The lamp side connector 43 shown in FIG. 3 is electrically connected to the light source 22 through a conductor pattern formed on the substrate 21 .

The cover 30 has translucency with respect to the light emitted by the light source 22 . The cover 30 is formed in a milky white color having light diffusing properties, for example, by dispersing titanium oxide or the like in a resin material such as acrylic. The cover 30 is supported by the lamp main body 10 so as to cover the light source 22 .

As shown in FIG. 4 , the cover 30 has a main surface portion 31 facing the light source 22 across a space 90 . The main surface portion 31 is formed in a rectangular shape, and the cover 30 has four side portions that cover the sides of the space 90 corresponding to the four sides of the main surface portion 31 . FIG. 4 shows two side surface portions 32 provided along the longitudinal direction of the main surface portion 31 .

Side caps 36 shown in FIGS. 1 to 3 are attached to both ends of the cover 30 in the longitudinal direction. The side cap 36 forms a lateral side portion of the cover 30 along the lateral direction.

As shown in FIG. 4, the cover 30 further has an upper side portion 33. As shown in FIG. The main surface portion 31, the longitudinal side portion 32, and the upper side portion 33 are integrally formed by, for example, extrusion molding. The side portion 32 is located outside the outer edge portion along the longitudinal direction of the lamp main body 10 and extends above the light source module 20 .

The upper side portion 33 is continuous with the upper end of the side portion 32 and protrudes from the side portion 32 toward the chassis 11 . The side portion 32 and the upper side portion 33 extend along the longitudinal direction of the cover 30 (the direction penetrating through the plane of FIG. 4). Both longitudinal ends of the cover 30 are open when the side caps 36 are not attached.

Cover insertion portions 11c are provided at both ends of the rear surface 11b of the chassis 11 in the short direction (horizontal direction in FIG. 4). The cover insertion portion 11c protrudes outside the chassis 11 so as to form a gap with the rear surface 11b of the chassis 11 . The upper side portion 33 of the cover 30 is inserted into the gap under the cover insertion portion 11c. The cover insertion portion 11c and the gap thereunder extend along the longitudinal direction of the chassis 11 (the direction penetrating through the plane of FIG. 4).

Before mounting the side cap 36, the chassis 11 and the cover 30 are slid relatively in the longitudinal direction, and the upper side portion 33 of the cover 30 is inserted into the gap below the cover insertion portion 11c of the chassis 11. As shown in FIG. The upper side portion 33 of the cover 30 is placed on the longitudinal end portion of the rear surface 11 b of the chassis 11 , and the cover 30 is supported with respect to the lamp main body 10 . After that, the side caps 36 are attached to both ends of the cover 30 in the longitudinal direction.

FIG. 5 is an enlarged view of a portion (the portion provided with the fitting adapter 40) in FIG. 6 is a cross-sectional view taken along the line XX in FIG. 5. FIG.

As shown in FIG. 6, the mating adapter 40 is fixed onto the adapter fixing member 80 . The fitting adapter 40 is screwed to the adapter fixing member 80, for example. The adapter fixing member 80 is, for example, an aluminum plate.

An adapter pressing member 70 is fixed to the rear surface 11 b of the chassis 11 . The adapter holding member 70 is, for example, an electrogalvanized steel plate.

The adapter pressing member 70 has a lower portion 72 and an upper portion 71 . The lower part 72 is screwed to the chassis 11, for example. The upper step portion 71 is positioned farther from the back surface 11 b of the chassis 11 than the lower step portion 72 , and a space is formed between the upper step portion 71 and the back surface 11 b of the chassis 11 . An adapter fixing member 80 is arranged in that space.

The plate-shaped adapter fixing member 80 has an outer edge (outline) 80a indicated by a dashed line in FIG. As shown in FIG. 6 , a gap 73 is formed between the outer edge portion 80 a of the adapter fixing member 80 and the lower step portion 72 of the adapter pressing member 70 . A space between the upper stage portion 71 and the rear surface 11b of the chassis 11 is opened in a direction penetrating the plane of FIG.

As shown in FIG. 5, an upper portion 71 of the adapter pressing member 70 is formed with an opening 71a. The mating adapter 40 is positioned within the opening 71a. An outer edge portion 80a of the adapter fixing member 80 is located outside the edge of the opening 71a. In the top view shown in FIG. 5 , part of the adapter fixing member 80 is hidden under the fitting adapter 40 and under the upper step portion 71 of the adapter pressing member 70 .

The opening 71a has a first edge 71b and a second edge 71c connected via a straight portion 71d. The fitting adapter 40 is formed in a cylindrical shape, and the first edge 71b is formed along the annular shape of the side surface of the fitting adapter 40 in this example. The second edge 71c protrudes downward (downward B) in FIG. 5 from the first edge 71b via the straight portion 71d.

As will be described later, an upward direction A in FIG. 5 is a direction in which the lamp body 10 is moved relative to the adapter fixing member 80 together with the adapter pressing member 70 when the fitting adapter 40 is removed from the ceiling material (first direction). 1 direction). The downward direction (second direction) B in FIG. 5 indicates the direction when the fitting adapter 40 is removed from the ceiling material after the lamp body 10 has been moved upward (first direction) A (state shown in FIG. 15). This is the direction in which the removing member 12 to be operated is pulled.

As shown in FIG. 6 , the adapter fixing member 80 is sandwiched between the upper step portion 71 of the adapter holding member 70 and the rear surface 11 b of the chassis 11 and is not fixed to the chassis 11 . That is, the fitting adapter 40 fixed to the adapter fixing member 80 and the lamp main body 10 are relatively movable in a direction parallel to the rear surface 11 b of the chassis 11 . Movement here includes not only linear movement but also rotational movement.

A gap 73 between the outer edge portion 80 a of the adapter fixing member 80 and the lower step portion 72 of the adapter holding member 70 , and a gap between the edge of the opening 71 a formed in the upper step portion 71 and the side surface of the fitting adapter 40 . allows relative movement of the lamp body 10 with respect to the fitting adapter 40 . The contact between the outer edge portion 80a of the adapter fixing member 80 and the lower step portion 72 of the adapter holding member 70, and the contact between the side surface of the fitting adapter 40 and the edge of the opening 71a causes the lamp main body 10 to move relative to the fitting adapter 40. movement is restricted.

As shown in FIG. 7 , a convex portion 75 is formed on the lower surface of the upper step portion 71 of the adapter pressing member 70 , and a concave portion 81 into which the convex portion 75 can be fitted is formed on the upper surface of the adapter fixing member 80 . . A plurality of projections 75 are formed in the upper step portion 71 , and a plurality of recesses 81 corresponding to the plurality of projections 75 are formed in the adapter pressing member 80 .

At the initial position of the relative position between the fitting adapter 40 and the lamp main body 10 , the projection 75 is fitted into the recess 81 . That is, when the lamp main body 10 is attached to the ceiling material via the fitting adapter 40 and there is no need to adjust the position of the lamp main body 10 (the position in the direction along the ceiling surface), the convex portion 75 fits into the concave portion 81. The mated state is maintained.

When the position of the lamp main body 10 needs to be adjusted after installation, the lamp main body 10 is moved from the initial position to the mounting surface (ceiling surface) with respect to the fitting adapter 40 and the adapter fixing member 80 fixed to the ceiling material. The mounting position of the lamp body 10 can be adjusted by sliding (including rotating) along the direction. The cover 30 attached to the lamp main body 10 also moves together with the lamp main body 10 to adjust its position.

At this time, the convex portion 75 and the concave portion 81 are disengaged, and the convex portion 75 contacts the upper surface of the adapter fixing member 80 . That is, the lamp main body 10 is supported by the adapter fixing member 80 fixed to the ceiling material in a point contact state in which the plurality of projections 75 are in contact with the upper surface of the adapter fixing member 80 . The point contact between the adapter pressing member 70 and the adapter fixing member 80 reduces the frictional force between the adapter pressing member 70 and the adapter fixing member 80 as compared with the case of surface contact, and the adapter pressing member 70 and adapter fixing member 80 are in contact with each other. Relative movement with the fixed member 80 is facilitated.

According to this embodiment, instead of fixing the fitting adapter 40 to the lamp main body 10, the fitting adapter 40 and the lamp main body 10 are made relatively movable, so that the outer edge portion 80a of the adapter fixing member 80 is fixed. , the gap 73 between the lower step portion 72 of the adapter pressing member 70 and the gap between the edge of the opening 71a formed in the upper step portion 71 and the side surface of the fitting adapter 40. Therefore, the position of the lamp main body 10 can be adjusted after being attached to the ceiling material.

As a result, when the plurality of lamp main bodies 10 are arranged side by side, even if the positions of the plurality of mounting holes formed in the ceiling material vary, the plurality of lamp main bodies 10, that is, the light emitting surfaces can be arranged seamlessly and evenly. becomes possible.

Further, if the positions of the mounting holes near the wall are misaligned, the lamp main body 10 may not fit in the installation space near the wall. However, according to this embodiment, the position of the mounting hole on the side of the wall is set so that the lamp body 10 in the initial position is separated from the wall, and the lamp body 10 is attached to the ceiling material via the fitting adapter 40. Later, by moving the lamp main body 10 to the wall side and bringing it closer, the lamp main body 10 can be securely accommodated in the installation space by the wall.

The cushion material 13 shown in FIG. 3 provided on the back surface 11b of the chassis 11 is compressed between the back surface 11b of the chassis 11 and the ceiling surface, and the lamp main body 10 is in close contact with the ceiling surface via the cushion material 13. there is The position of the lamp main body 10 along the ceiling surface is held by the frictional force between the cushion material 13 and the ceiling surface. By applying a force against the frictional force to the lamp main body 10, the lamp main body 10 can be moved to adjust the position.

The allowable range of relative movement of the lamp body 10 with respect to the fitting adapter 40 is determined by the size of the gap 73 between the outer edge portion 80 a of the adapter fixing member 80 and the lower step portion 72 of the adapter pressing member 70 and the upper step portion 71 . It is determined by the size of the gap between the edge of the opening 71 a and the side surface of the mating adapter 40 . When the mating adapter 40 moves within the range of the opening 71a formed in the adapter pressing member 70, the adapter fixing member 80 and the lower step portion are provided with a clearance that prevents the adapter fixing member 80 from interfering with the lower step portion 72 of the adapter pressing member 70. 72.

Next, the structure and method for attaching the fitting adapter 40 to the ceiling material will be described. The fitting adapter 40 is attached to the ceiling material with a mounting bracket.

FIG. 8 is a perspective view of the elements of the lamp 100 located behind the ceiling material 300. FIG.
FIG. 9 is a perspective view of the mounting bracket 60. FIG.
10 is a perspective view showing a fitting structure between the mounting bracket 60 and the fitting adapter 40. FIG.
11 is a cross-sectional perspective view showing a fitting structure between the mounting bracket 60 and the fitting adapter 40. FIG.

As shown in FIG. 9, the mounting bracket 60 is formed in an annular shape and has an opening 64 inside it. A plurality of mounting springs 63 having a leaf spring structure are provided on the side surface of the mounting bracket 60 . An annular flange 61 is provided on the lower surface of the mounting bracket 60 . The outer diameter of the flange 61 is larger than the diameter of the circular attachment hole formed in the ceiling material 300 . A receiving plate 62 is provided along the edge of the opening 64 on the upper surface of the flange 61 .

The mounting bracket 60 is fitted into a mounting hole 300a (shown in FIG. 11) formed in the ceiling material 300. As shown in FIG. Between the side surface of the mounting bracket 60 and the inner wall of the mounting hole 300a of the ceiling material 300, the mounting spring 63 is arranged in a state deformed from its natural state. The mounting bracket 60 is urged upward by the restoring force of the mounting spring 63, and the upper surface of the flange 61 on the outer edge side presses against the front side surface of the ceiling material 300 (see FIG. 11). The state of being fitted into the mounting hole 300a is maintained.

Before fitting the mounting bracket 60 into the mounting hole 300a of the ceiling material 300, the power supply unit 50 shown in FIG. The power supply unit 50 is passed through the mounting hole 300a to the back side of the ceiling material 300, and is arranged on the back side of the ceiling material 300 so as not to overlap the mounting hole 300a.

Alternatively, if the power supply unit 50 already installed on the back side of the ceiling material 300 is used as it is, the work of installing the power supply unit 50 on the back side of the ceiling material 300 is unnecessary.

As shown in FIG. 8, the power supply unit 50 has terminal blocks 52 and 53 that can be connected to an external power supply (commercial power supply). An electric cable 51 is led out from the power supply unit 50 . Terminals of the terminal blocks 52 and 53 are electrically connected to a circuit board of the power supply unit 50, and an electric cable 51 is electrically connected to the circuit board. An end of the electric cable 51 is provided with a power connector 51a.

Before the lamp main body 10 is attached to the ceiling material 300, the electric cable 51 is passed through the mounting hole 300a of the ceiling material 300 and the opening 64 inside the mounting bracket 60 fitted in the mounting hole 300a. The side connector 51 a is positioned on the front side of the ceiling material 300 .

An operator who installs the lamp 100 brings the lamp 100 closer to the ceiling material 300, holds the lamp 100 with one hand, and uses the other hand to connect the power connector 51a of the electric cable 51 hanging down from the mounting hole 300a. The power supply side connector 51a is connected to the lamp side connector 43 fixed to the upper surface of the fitting adapter 40 provided on the rear surface of the lamp main body 10 by grasping it.

After connecting the power-side connector 51 a to the lamp-side connector 43 , the fitting adapter 40 is fitted into the opening 64 inside the mounting bracket 60 fitted into the mounting hole 300 a of the ceiling material 300 .

As shown in FIG. 11 , the fitting adapter 40 has an upper case 41 , a lower case 42 , two slide members 45 , and a spring 47 connecting the two slide members 45 .

A claw portion 44 having an inclined surface is provided at the tip of each slide member 45 . Due to the sliding movement of the two slide members 45 accompanying the expansion and contraction of the spring 47, the claw portion 44 is retracted inside the cases 41 and 42 through the opening formed between the upper case 41 and the lower case 42, and the cases 41 and 42 are retracted. It is possible to protrude outside the

FIG. 11 shows a state in which the claw portion 44 protrudes outside the cases 41 and 42 and rides on the upper surface of the receiving plate 62 of the mounting bracket 60 . As shown in FIG. 11, a stopper 41a protruding downward from the upper case 41 is positioned in a recess 46 formed in the upper surface of the slide member 45, and the contact between the stopper 41a and the wall surface of the recess 46 causes two slides to move. Movement of the members 45 in directions away from each other is restricted.

Normally, the claw portion 44 protrudes outside the cases 41 and 42 . When the fitting adapter 40 is fitted inside the mounting bracket 60 , the inclined surface of the claw portion 44 is brought into contact with the inner peripheral wall of the flange 61 of the mounting bracket 60 and the inner peripheral wall of the receiving plate 62 . The two slide members 45 compress the springs 47 and slide closer to each other due to the force that the claws 44 receive from the inner peripheral wall of the flange 61 and the inner peripheral wall of the receiving plate 62 . The claw portion 44 is retracted inside the cases 41 and 42 to allow the fitting adapter 40 to be fitted inside the mounting bracket 60 .

When the claw portion 44 moves to a position above the receiving plate 62, the force that the claw portion 44 receives from the inner peripheral wall of the receiving plate 62 is released, and the two slide members 45 are separated from each other by the restoring force of the spring 47. direction. The claw portion 44 protrudes outside the cases 41 and 42 , and the lower surface of the claw portion 44 rides on (hooks on) the upper surface of the receiving plate 62 . As a result, the fitting adapter 40 and the lamp main body 10 fixed to the fitting adapter 40 are prevented from falling from the mounting bracket 60 .

When the fitting adapter 40 is fitted to the mounting bracket 60, the cushion material 13 provided on the rear surface 11b of the chassis 11 shown in FIG. The main surface portion 31 of the cover 30 is parallel to the surface on the front side of the ceiling material 300 and faces the space below the ceiling material 300 .

Alternatively, the lighting device 100 of the embodiment can be attached to the wall material by the same method as the attachment method to the ceiling material 300 . When the lamp 100 is attached to the wall material, the main surface portion 31 of the cover 30 becomes parallel to the wall surface and directed to the lateral space of the wall material.

The fitting adapter 40 is provided on the rear surface 11b of the chassis 11, and the plurality of light sources 22 in the light source module 20 extend over an area larger than the area of the mounting holes 300a of the ceiling material 300 and the area of the openings 64 of the mounting brackets 60. A light source 22 is also arranged in a region of the lamp main body 10 that is arranged on the light source arrangement surface 11 a and overlaps the fitting adapter 40 . Therefore, in the main surface portion 31 of the cover 30, the central portion, which is the region overlapping the mounting hole 300a and the fitting adapter 40, can also be illuminated, and a light emitting surface can be obtained over a wide area.

Alternatively, the fitting adapter 40 may be provided on the light source arrangement surface 11 a of the chassis 11 , and an opening for protruding the claw portion 44 of the fitting adapter 40 may be formed on the side surface of the cover 30 . In this case, it is necessary to prevent light from leaking out through the opening formed in the cover 30 .

By installing a plurality of lamps 100 described above, it is possible to realize a lighting device having a wider light emitting surface. The plurality of lamps 100 are adjacent to each other with the side portions of the cover 30 in contact with each other.

As shown in FIGS. 1 to 3, a first connecting member 91 and a second connecting member 92 are provided on the rear surface 11b of the chassis 11, and adjacent lamps 100 are connected by the connecting members 91 and 92. FIG.

The first connecting member 91 is a protrusion that protrudes from one short side of the chassis 11 to the outside of the chassis 11 . A plurality of (for example, two) first connecting members 91 are provided spaced apart in the short direction of the chassis 11 . A plurality of (for example, two) second connecting members 92 are provided on the other short side of the chassis 11 in correspondence with the number of the first connecting members 91, and are spaced apart in the short direction. The second connecting member 92 has a space into which the first connecting member 91 can be inserted. The second connecting member 92 does not protrude outside the chassis 11 . The first connecting member 91 and the second connecting member 92 are made of, for example, electrogalvanized steel sheets.

12A to 12C are schematic side views showing how to connect two lamps. One of the two adjacent lamps is a first lamp 100a, and the other is a second lamp 100b. The first lamp 100a and the second lamp 100b have the same configuration as the lamp 100 described above.

The first lamp 100a and the second lamp 100b are adjacent to each other, for example, by abutting the lateral side portions (the side caps 36 in this example) along the lateral direction. One of the first connecting member 91 and the second connecting member 92 (the first connecting member 91 in this example) of the first lamp 100a is provided on the side (side cap 36), and the second of the first connecting member 91 and the second connecting member 92 (in this example, the second connecting member 92) of the lamp 100b is adjacent to the side surface (side cap 36).

12A, the first lamp 100a has already been attached to the ceiling material 300. In FIG. That is, the fitting adapter 40 of the first lamp 100 a is fitted into the mounting hole 300 a of the ceiling material 300 via the mounting bracket 60 .

While aligning the second connection member 92 of the second lamp 100b with the first connection member 91 of the first lamp 100a, the fitting adapter 40 of the second lamp 100b is inserted into the mounting hole 300a. It is made to fit into the fitted mounting bracket 60 . At this time, while tilting the second lamp 100b obliquely with respect to the ceiling surface, the first connection member 91 of the first lamp 100a is inserted into the space inside the second connection member 92 of the second lamp 100b. Insert the tip.

As shown in FIG. 12B, the second lamp 100b is attached to the ceiling material 300 with the side cap 36 of the second lamp 100b separated from the side cap 36 of the first lamp 100a.

As described above, when the fitting adapter 40 of the second lamp 100b is attached to the ceiling material 300, the lamp main body 10 and the cover 30 of the second lamp 100b are movable relative to the fitting adapter 40. be. That is, in the state of FIG. 12B, the lamp main body 10 and the cover 30 of the second lamp 100b can be moved in the direction C to approach the first lamp 100a parallel to the ceiling surface.

The first connecting member 91 and the second connecting member 92 overlap on the rear surface 11b of the chassis 11 so as to be relatively movable in a direction parallel to the ceiling surface.

Then, by moving the lamp main body 10 and the cover 30 of the second lamp 100b in the direction C, the side cap 36 of the second lamp 100b is attached to the side cap 36 of the first lamp 100a as shown in FIG. 12C. The second lamp 100b is brought into contact with the first lamp 100a. In this state, the first connecting member 91 of the first lamp 100 a and the second connecting member 92 of the second lamp 100 b are connected on the rear surface 11 b of the chassis 11 . Specifically, the first connecting member 91 is inserted into the space inside the second connecting member 92, and the first connecting member 91 and the second connecting member 92 are connected to the lamp fixtures 100a and 100b and the ceiling material. 300 overlap each other.

The first connecting member 91 and the second connecting member 92 overlap behind the light source installation surface (between the chassis 11 and the ceiling surface) and are not located in the space inside the cover 30 . Therefore, the first connecting member 91 and the second connecting member 92 do not become shadows when viewed from the main surface portion 31 and the side surface portions of the cover 30 .

By connecting the first connecting member 91 and the second connecting member 92 in such a manner, the adjacent portions of the first lamp 100a and the second lamp 100b are perpendicular to the mounting surface (ceiling surface in this example). Directional steps (positional deviations) can be regulated. As a result, for example, even if the ceiling surface is distorted or the side portion far from the fitting adapter 40 tends to be displaced downward due to gravity, the adjacent portion between the first lamp 100a and the second lamp 100b is No step occurs. That is, it is possible to give a sense of unity between the light emitting surfaces of the adjacent lamps 100a and 100b without being conscious of the seams.

As shown in FIGS. 1 to 3, the lamp 100 having a first connecting member 91 and a second connecting member 92 at both ends in the longitudinal direction is an intermediate ( It can be used as a lamp 100 arranged between other lamps 100).

The lamp 100 shown in FIGS. 1 to 3 can be used as the leftmost lamp 100 among the plurality of adjacent lamps 100 . In this case, the first connecting member 91 of the other lamp 100 is not inserted into the second connecting member 92 provided at the left end of the leftmost lamp 100 , but the second connecting member 92 is positioned to the side of the lamp 100 . Because it does not protrude, it does not spoil the appearance.

1 to 3, if the right end first connecting member 91 is not provided, the lamp 100 can be used as the right end lamp 100 among the plurality of adjacent lamps 100.

Alternatively, the first connecting member 91 may be detachably attached to the rear surface 11b of the chassis 11 by screwing, for example, and the first connecting member 91 may be removed for the lamp 100 used at the right end. Therefore, it is possible to prevent the first connecting member 91 from protruding sideways from the lamp 100 and being seen. Alternatively, instead of removing the first connecting member 91 , the first connecting member 91 may be hidden behind the chassis 11 by changing its orientation and reattaching it to the rear surface 11 b of the chassis 11 .

In addition, the first connecting member 91 (or the second connecting member 92) is provided at the longitudinal end (portion near the short side) of the long side of the lamp 100, and is provided at the short side of the other lamp 100. By connecting with the second connecting member 92 (or the first connecting member 91), the two rectangular lamps 100 can be adjacent to each other at right angles in plan view.

One first connecting member 91 and one second connecting member 92 may be provided in one lamp. When a plurality of first connecting members 91 and a plurality of second connecting members 92 are provided in one lamp, the connection between the plurality of first connecting members 91 and the plurality of second connecting members 92 can It is also possible to regulate positional deviation in the rotational direction within a plane parallel to the mounting surface between the first lamp 100a and the second lamp 100b.

As shown in FIG. 5, a removal member 12 is arranged on the rear surface 11b of the chassis 11. As shown in FIG. One end of the removal member 12 is connected to the slide member 45 of the fitting adapter 40 .

13 and 14 are perspective views showing the connecting structure between the fitting adapter 40 and the removal member 12. FIG.
FIG. 13 shows a state in which the upper case 41 of the fitting adapter 40 is removed.
FIG. 14 is a perspective view of the connection structure between the detachable member 12 and the slide member 45 as seen from the back side, with the lower case 42 also removed in FIG.

The removing member 12 and the slide member 45 are connected via two arm members 48 . Each arm member 48 can rotate about a shaft portion 42a provided on the lower case 42 as a fulcrum.

A through-hole 48a is formed at one end of each arm member 48, and the through-holes 48a are overlapped with each other. A pin 12a provided at one end of the removal member 12 is engaged in the through hole 48a.

The operator can slide the removal member 12 along the longitudinal direction by pulling the other end 12b (shown in FIG. 5) of the removal member 12, for example, with a jig or directly with a finger.

When the removal member 12 is pulled in a direction in which the other end 12b of the removal member 12 protrudes outward from the side surface of the lamp 100, the pair of arm members 48 engaged with the pins 12a of the removal member 12 move the shaft portion 42a. Rotate to a fulcrum. As the arm member 48 rotates, the other end portion 48b of the arm member 48 shown in FIG. As a result, the two slide members 45 compress the springs 47 and slide toward each other.

Due to this sliding movement of the slide member 45, the claw portion 44 is released from the state of riding on the receiving plate 62 of the mounting bracket 60 shown in FIG. 300 can be removed.

In the state where the lamp main body 10 is attached to the ceiling material, that is, the state in which the fitting adapter 40 is attached to the ceiling material via the mounting bracket 60, as shown in FIG. It overlaps with the lamp. In the example shown in FIG. 5, the other end portion 12b of the removing member 12 overlaps the upper side portion 33 of the cover 30. As shown in FIG. In this state, the lamp is maintained and used while being installed on the ceiling material. That is, the removal member 12 cannot be seen from the light emitting surface side.

By moving the lamp main body 10 in the state shown in FIG. 5 in the first direction A with respect to the fitting adapter 40 and the adapter fixing member 80, as shown in FIG. It protrudes outward from the side surface (the side surface of the cover 30). Then, by grasping the projecting other end portion 12b with a jig or by hand and moving the removing member 12 in the second direction B opposite to the first direction A, the claw portion 44 of the fitting adapter 40 is attached to the mounting bracket 60. deviate from

5, the distance along the second direction B between the side surface of the fitting adapter 40 facing the second direction B and the edge 71c of the opening 71a formed in the adapter pressing member 70 is facing the first direction A and the edge 71b of the opening 71a formed in the adapter pressing member 70 along the first direction A. Even if the lamp main body 10 is moved in the second direction B from the state of FIG. 5, the removal member 12 remains hidden behind the lamp.

With such a configuration, the direction in which the lamp main body 10 is to be moved when removing can be set to one direction A, which provides a clear operational instruction to the operator.

The width of the first connecting member 91 described above (the width in the direction orthogonal to the projecting direction) is smaller than the width of the space inside the second connecting member 92, and the first connecting member 91 is larger than the second connecting member. 92, the first connecting member 91 and the second connecting member 92 are relatively movable in the lateral direction of the lamp fixtures 100a and 100b (the direction penetrating the paper surface in FIG. 12C). be.

Therefore, even when a plurality of lamp fixtures 100 are connected by the first connecting member 91 and the second connecting member 92, only the lamp main body 10 (and the cover 30) of the lamp fixture 100 to be removed can be removed from the first connecting member 91 in FIG. By sliding in the direction A, only the lamp 100 to be removed can be removed from the ceiling material. The lamp 100 connected next to the lamp 100 to be removed does not move in the first direction A together with the lamp 100 to be removed.

According to the embodiment described above, it is not necessary to make a square hole in the building material (ceiling material or wall material) that matches the shape and size of the lamp main body 10, and the construction to the building material is less than the size of the lamp main body 10. Only one mounting hole that is small and matched to the size of the mating adapter 40 needs to be drilled. By fitting the fitting adapter 40 into the fitting 60 fitted into the fitting hole, the lamp main body 10 can be easily attached to the building material.

The lamp-side connector 43 is fixed to the upper surface of the fitting adapter 40 instead of being connected to one end of the cable and dangling. On the other hand, the power-side connector 51 a is led out from the power supply unit 50 by an electric cable 51 . Therefore, the power-side connector 51a is positioned at the operator's hand on the front side of the ceiling material 300 through the mounting hole 300a of the ceiling material 300 and the opening 64 of the mounting bracket 60, and the operator grasps the power-side connector 51a with one hand. The power connector 51 a can be connected to the lamp connector 43 while supporting the lamp 100 with one hand on the main surface 31 of the cover 30 . It is not necessary to grasp the lamp-side connector 43 itself by hand. Therefore, even if the planar size of the lamp main body 10 is increased, the electric connection between the power supply unit 50 and the lamp 100 and the attachment of the lamp 100 to the ceiling material 300 can be easily performed by one worker.

Also when removing the lamp 100 from the ceiling material 300, while supporting the lamp 100 by placing one hand on the main surface portion 31 of the lamp 100, the other end 12b of the removal member 12 is held by the other hand with, for example, a jig. is used to release the engagement between the claw portion 44 of the fitting adapter 40 and the mounting bracket 60 , and the lamp 100 can be removed from the ceiling material 300 . After that, while maintaining the state of supporting the lamp 100 with one hand, the other hand can be moved from the removal member 12 to the power supply side connector 51a to pull the power supply side connector 51a and pull it out from the lamp side connector 43. - 特許庁That is, removal of the lamp 100 from the ceiling material 300 and disconnection of the electrical connection between the power supply unit 50 and the lamp 100 can be easily performed by one operator.

According to such an embodiment, since various types of lamp main bodies 10 can be easily connected to the common power supply unit 50 with one touch, it is possible to change to a different kind of lamp main body 10 without taking time and effort. It becomes possible. When changing the lamp main body 10, the common power supply unit 50 does not need to be removed from the ceiling material 300. - 特許庁

When a plurality of lamp fixtures 100 are placed adjacent to each other with their side faces in contact with each other, the adjacent side faces tend to be brighter than other regions due to interference of light from the respective lamp fixtures. A thick side portion (side cap 36) of the cover 30 can function like a light guide plate.

In addition, while the area between the plurality of light sources 22 is illuminated by the light from the plurality of light sources 22, the area outside the light source 22 arranged at the end on the substrate 21 is illuminated by the light from one side. It tends to be relatively dark due to illumination. Since the contact portion of the side surface becomes relatively bright, the dark portion of the edge region of the substrate 21 becomes conspicuous, and light and shade are formed in the vicinity of the adjacent portion of the lamp 100, which impairs the uniformity of the luminance on the light emitting surface. hinder

Therefore, in this embodiment, the light transmittance of the side cap 36, which is the adjacent portion (side portion) of the lamp 100, is appropriately controlled.

16 is an internal view of the side cap 36. FIG.

A transmittance control member 85 having a lower light transmittance than the side cap 36 is provided on the inner surface 36 a of the side cap 36 facing the space inside the cover 30 . The light transmittance here represents the transmittance of the light emitted by the light source 22 .

Light transmission is suppressed in the region where the transmittance control member 85 is provided, and it is possible to suppress excessive brightness at the contact portions between the side caps 36 of the adjacent lamps 100 .

The transmittance control member 85 has a light shielding property and/or a reflecting property. In particular, if the transmittance control member 85 is a reflective member, the light reflected by the transmittance control member 85 illuminates an area on the substrate 21 outside the light source 22 arranged at the end, and the area outside the light source 22 is illuminated. It is possible to suppress the occurrence of dark areas.

Examples of such a reflective transmittance control member 85 include a metal member and a white resin member. In particular, if a white resin member containing a light diffusing material such as titanium oxide is used as the transmittance control member 85, it is possible to reduce luminance unevenness in the vicinity of the adjacent portion of the lamp 100 due to its diffuse reflectivity.

Further, when the transmittance control member 85 is reflective, if the transmittance control member 85 is provided up to the edge of the inner surface 36a of the side cap 36, bright lines may occur at that edge. Therefore, as shown in FIG. 16, the transmittance control member 85 is spaced apart from the end 37 on the main surface portion 31 side of the inner surface 36a of the side cap 36 and the side end 38 continuous with the end 37 on the main surface portion 31 side. there is Since the end 39 on the side of the mounting surface (for example, the ceiling surface) is positioned behind the light source 22 , the transmittance control member 85 may be provided up to the end 39 on the side of the mounting surface.

Also, the light transmittance of the side cap 36 itself is equal to or lower than the light transmittance of the main surface portion 31 of the cover 30 . Therefore, it is possible to suppress the transmission of light in the region where the transmittance control member 85 is not provided on the inner surface 36a of the side cap 36, thereby suppressing the contact portion between the side caps 36 of the adjacent lamps 100 from becoming too bright. can be done.

FIG. 17A is a schematic cross-sectional view of the adjacent portion between the first lamp 100a and the second lamp 100b.

A white light reflecting layer, for example, is formed on the light source mounting surface of the substrate 21 on which the light source 22 is mounted. On the adjacent portion side of the lamp 100, by arranging the end portion 21a of the substrate 21 on which the light reflecting layer is formed up to the vicinity of the side cap 36, the light source 22 arranged at the end on the substrate 21 described above is positioned outside the light source 22. can suppress the dark part of the area of .

17B is a schematic cross-sectional view of the non-adjacent end of the lamp 100. FIG.

On the non-adjacent side of the lamp 100 that is not adjacent to the other lamps 100, the substrate 21 is separated from the side cap 36 more than the adjacent side shown in FIG. can prevent it from appearing

FIG. 18 is a plan view of the back surface of a lamp fixture 200 according to another embodiment of the present invention.

This lamp 200 has a square light emitting surface. The outer shape of the lamp main body 10 is also square. The lamp body 10, the cover 30, the fitting adapter 40, the adapter fixing member 80, the adapter pressing member 70, the removal member 12, etc. are the same as the lamp 100 of the above-described embodiment, and their functions and effects are also the same. be.

In such a square lamp 200 as well, the first connecting member 91 and the second connecting member 92 can be provided on the rear surface 11 b of the chassis 11 . Then, the plurality of lamp fixtures 200 provided with the first connecting member 91 and the second connecting member 92 are brought into contact with the side surfaces of the covers 30 of each other, and the first connection is established on the rear surface 11 b of the chassis 11 . By overlapping the member 91 and the second connecting member 92, they can be adjacent to each other. For example, a plurality of lamp fixtures 200 can be adjacent in one direction. Alternatively, for example, four lamp fixtures 200 can be arranged adjacent to each other in a square.

Next, as an embodiment, a process of installing lighting fixtures 400 such as the above-described lighting fixtures 100 and 200 when constructing a building such as an office building, a factory, or a commercial facility will be described. First, therefore, the conventional steps in the construction of such buildings will be described. FIG. 19 is a flowchart for explaining the flow of lighting installation in the process until a conventional building is constructed. The object here is a building with multiple floors, corridors and living rooms, like a general office building. In the construction of a large-scale building such as an office building, a general contractor takes orders for construction work and coordinates the entire construction work performed by various contractors.

First, an architect or designer designs a building (step S1). In this process, the layout of corridors and living rooms is determined, and the overall design of the building is drawn up on the blueprints. In addition, the building materials to be used and electrical equipment materials such as lighting fixtures are also determined to some extent, and their layout is also indicated on the drawing.

Next, building materials and construction machines are prepared based on the determined design, and foundation work is carried out (step S2). In this process, piling and earthwork are used to secure a stable ground that can withstand the load of the building. Workers of civil engineering contractors mainly work here. In addition, not only the workers of civil engineering contractors but also the workers of other contractors are working.

Next, frame work is performed to form the frame of the building on the stable ground (step S3). As frame construction, if there is a foundation part or a basement floor, it starts with underground construction such as the basement floor and progresses to the ground floor. Concrete is cast, columns are erected, steel frames are assembled, and the framework of the entire building is completed. Concrete is also placed on the outer walls, the roof, the floors of each floor, and the like.

In addition, inserts are embedded in the framework construction to lower the hanging bolts in the interior construction later. For example, ceiling inserts for fixing hanging bolts are fixed as part of the upper floor slab (such as a reinforced concrete floorboard) when it is cast. Workers of civil engineering contractors and workers of scaffolding, earthwork, and concrete construction workers mainly work here. Next, exterior construction of the building is carried out (step S4). Exterior wall tiling, window sashes, window glass, curtain walls, etc. can be installed. Painting is also performed.

Next, interior construction is performed (step S5). In interior construction, ceilings, walls and floors are constructed. In the ceiling work to install the ceiling, hanging bolts are lowered from the ceiling insert provided in the frame work in step S3, and the ceiling plate and ceiling base material are members that make up the ceiling surface on the base that combines lightweight steel frames. Ceiling material is installed. Suspension bolts, hangers, and other hanging materials, diagonal members, and the like are used to support the ceiling material, and measures are taken to prevent the ceiling board from falling off.

For example, in Japan, the Building Standards Law and the Enforcement Ordinance stipulate regulations for preventing such falling-off of ceilings. As one of them, it is stipulated that when installing a ceiling material that satisfies predetermined conditions, measures to prevent it from falling off, such as fixing it with hanging materials, etc., are stipulated. Depending on the size and weight of the lighting fixtures, there are those that can be installed on the ceiling without being fixed to suspension materials, and those that are fixed by suspension materials.

It should be noted that the ceiling insert for fixing the suspension bolt can be fixed by driving an anchor into the concrete after the concrete is placed instead of installing the ceiling insert when the concrete is placed. However, from the perspective of efficiency and safety, it is preferable to install them in advance. It is desirable to be embedded when

In addition, in the interior work, before the ceiling is installed, that is, before the ceiling material is completely formed, pipes and air conditioning ducts are suspended, and electric wires and the like are passed through the pipes. Therefore, a space necessary for installing electrical wiring, ducts, air conditioning equipment, etc. is provided in the ceiling space. Furthermore, openings are provided in the ceiling material according to the places where lighting and air conditioning are installed. Here, work such as installation of ducts in the ceiling and fixing of the ceiling material with hanging materials is performed by workers of interior construction contractors. On the other hand, the work of installing electrical wiring is performed by a professional worker who can perform electrical work because of the risk of electric shock.

In many cases, it is assumed that a ceiling construction worker who installs a ceiling and a wiring construction worker who runs electrical wiring through the ceiling are different people. In Japan, electrical work such as wiring work is not permitted by a person who is not qualified as an electrician. As described above, construction workers are dispatched from various specialized contractors, and each of them performs specialized work, so that safety is taken into consideration.

In this specification, a worker of a contractor who prepares a ceiling material for construction of a building and performs ceiling construction is referred to as a ceiling installation worker. In addition, a worker of a contractor who prepares electrical wiring for construction of a building and performs wiring work is called a wiring worker. It should be noted that the construction of each step in the construction of a building is usually carried out by a plurality of workers. Therefore, the ceiling installation worker is not limited to one worker, but refers to one or more workers who perform ceiling construction in the construction of a building. The same applies to wiring workers and the like.

Next, when the interior work is completed and the floor, walls, and ceiling are completed, installation work is carried out (step S6). In the installation work, equipment necessary for actual use of the building is installed. For example, facilities such as electricity, gas, water supply, drainage, air conditioning, toilets, disaster prevention, and broadcasting, as well as facilities such as lighting, escalators, and elevators are arranged. These works are carried out by workers of businesses such as electrical work, telecommunication work, water supply facility work, firefighting facility work, and cleaning facility work.

Also in the lighting installation work, it is necessary to perform the work by a qualified electrician because it is necessary to electrically connect the lighting fixtures. The place where the lighting is installed is not limited to the ceiling, but the lighting fixtures installed on the ceiling are usually connected to the wiring prepared in the ceiling space by a qualified electrician, and electrically connected. be done. When air-conditioning equipment is installed in the ceiling during air-conditioning installation work, it is connected to wiring prepared in the ceiling space by a qualified electrician.

Generally, in living rooms of buildings such as office buildings, large lighting fixtures and air conditioners arranged on the ceiling are fixed by hanging materials. Therefore, workers who install such large-sized lighting fixtures and air-conditioning equipment must also fix the large-sized lighting fixtures and air-conditioning equipment to hanging materials suspended from ceiling inserts and install them on the ceiling. become.

In order to make it in time for the lighting installation work, the manufacturer of the lighting equipment manufactures the lighting equipment necessary for the construction and delivers them to the electric materials trading company that manages the electrical equipment materials (step S7). In addition to lighting fixtures, electrical material trading companies manage inventories of materials such as switches, outlets, wires, cables, distribution boards, antennas, distribution boards, intercoms, fire alarms, etc., which are necessary for construction. necessary amount of electrical equipment materials (step S8). In this specification, an employee of a company that manufactures lighting fixtures or delivers lighting fixtures is called a lighting fixture supplier.

In the installation work process, the lighting installation work and the air conditioning installation work are performed separately. It should be noted that although it is possible for the same person to carry out both installation works at the same time, it is common to divide the work in consideration of work efficiency. Buildings are constructed in this way.

In this specification, the term "installation worker" refers to one or more workers who perform the installation work of lighting and air conditioning. It can also include the case of doing so. On the other hand, a lighting installation worker refers to one or more workers who perform the lighting installation work, and refers to workers who do not perform the air conditioning installation work. The term "air-conditioning installation worker" refers to one or more workers who perform the air-conditioning installation work, and refers to workers who do not perform the lighting installation work.

Next, as an embodiment, a process of constructing a building and a process of installing the lighting device 400 in this construction will be described. The lighting fixture 100 or the lighting fixture 200 already described can be used for the lighting fixture 400 here. A building 410 according to the embodiment has a multi-story structure, and has passages and living rooms. In addition, it may be a one-story building. 20 and 21 are schematic diagrams showing an example of the structure of living rooms on a specific floor of the building 410. FIG.

Building 410 forms living room space with floor 420 , walls 421 , ceiling 422 , and windows 423 . It should be noted that the living room may have no window 423 and only walls 421 on the sides. A plurality of illumination lamps 400 and a plurality of air conditioners 430 are installed on the ceiling. Note that the number of air conditioners 430 may be one.

Ceiling fixtures such as lighting fixtures and air conditioners to be installed on the ceiling include those that need to be directly fixed by hanging materials and those that do not. For example, small ceiling fixtures such as surveillance cameras, downlights, emergency lighting, and smoke sensors are installed without being directly fixed by hanging members such as hanging bolts or diagonal members. Such small ceiling fixtures are permitted to be installed without the need for hangers because the load on the ceiling material is small. Hereinafter, such a ceiling fixture will be referred to as a ceiling fixture that does not require fixing with hanging materials.

On the other hand, the ceiling-mounted base lighting, the ceiling-embedded base lighting, the air conditioner 430, and the like are fixedly installed by being directly connected to hanging materials. Since such a ceiling installation apparatus has a large load applied to the ceiling material, there is a high risk of it falling off in the event of an earthquake, for example, if it is not fixed with a hanging material. Therefore, instead of adopting an installation structure in which all the load is applied to the ceiling material, the ceiling installation fixture itself is supported by the hanging material. Hereinafter, such a ceiling fixture will be referred to as a ceiling fixture that needs to be fixed with a hanging member.

For example, in buildings such as office buildings, small ceiling fixtures such as downlights are installed for lighting in narrow spaces such as corridors, and large lighting fixtures such as base lighting are installed for large spaces such as living rooms. It is conceivable that Small lighting fixtures may be installed in a part of a living room, but in terms of the number of lighting fixtures installed in the entire living room, most of them are large lighting fixtures.

The lighting fixture 400 according to the present embodiment has a performance equivalent to that of a base lighting fixture, and can be used as a lighting fixture that does not require fixing with hanging materials during lighting installation work. can. In other words, the lighting fixture 400 is a lightweight large-sized lighting fixture that is large enough to be handled as a base lighting fixture and is lightweight enough to require no hanging material.

Here, the lightweight large lighting fixture in this specification means a total luminous flux of 2500 lm or more, a light emitting surface closest to the floor having an area of 45000 ^mm2 or more, or having 100 or more light source elements. It refers to a lighting fixture that satisfies at least one of the following: Alternatively, in addition to this, the characteristics of the lightweight large-sized illumination lamp may be further specified according to the condition that the weight is 0.5 kg or more and less than 2.5 kg.

The lighting fixture 400, which is a lightweight large lighting fixture, can be, for example, a lighting fixture with a square light emitting surface that is 450 mm long, 450 mm wide, and 20 mm high from the ceiling installation surface to the light emitting surface. Alternatively, the light emitting surface may be a square illumination lamp having a length of 600 mm and a width of 600 mm. Further, the light-emitting surface may be a rectangular lighting device with a length of 150 mm and a width of 600 mm, or a rectangular lighting device with a length of 75 mm and a width of 600 mm.

By designing the vertical and horizontal lengths to 600 mm or a length obtained by dividing this by a natural number in this way, compatibility with the ceiling material 300 is improved. In the building standards of Japan, building materials such as ceiling materials are handled in shaku units, and the vertical and horizontal lengths of ceiling materials are designed in units of approximately 300 mm. Therefore, by matching the vertical width or horizontal width of the lighting fixtures 400 with the vertical width or horizontal width of the ceiling material 300, the lighting fixtures 400 can be easily installed even when they are arranged side by side. It should be noted that the size of the ceiling material may be matched according to the building standards of the place where the building is constructed, so the 300 mm unit is not always the standard.

The lighting fixture 400 that does not require fixing with a hanging member will apply the load of the lighting fixture 400 to the ceiling material 300 . Therefore, it is desirable to install one lighting fixture 400 on one ceiling material 300 . Also, considering the load balance, it is preferable that the center of gravity of the lighting fixture 400 is positioned at the center of the ceiling material 300 . By making the vertical or horizontal dimensions of the lighting fixture 400 correspond to the vertical and horizontal dimensions of the ceiling material in accordance with the standards of building materials, it becomes easier to design to satisfy these installation conditions.

In particular, as shown in FIG. 21, when the lighting fixtures 400 are connected and installed, if the vertical or horizontal dimensions of the lighting fixtures 400 do not match the vertical and horizontal dimensions of the ceiling material, the adjacent ceiling materials The installation location of the lighting fixture 400 in 300 is different. As the number of connected parts increases, this deviation is linked in the connecting direction, and the load balance deteriorates.

Next, the steps up to the installation of the lighting fixture 400 in the construction of the building 410 will be described. 19 will be used to explain in detail the points that differ from the steps up to the construction of the building that have already been explained, and the overlapping points will be simplified or omitted.

Since the lighting device 400 does not need to be fixed by the suspension member 470, the designer does not need to determine the placement position of the suspension member according to the installation position of the lighting device 400 in step S1. Also, after the ceiling insert is provided and the placement position of the suspension member 470 is determined, if the placement position of the base lighting that needs to be fixed by the conventional suspension member is changed, it is necessary to install a new suspension bolt. , there is no need for the lighting fixture 400 . Therefore, the engineer or designer can flexibly change the installation location of the illumination lamp 400 even after the construction has progressed to some extent.

The steps from step S2 to step S4 are generally the same as those already explained. Next, in the interior construction of step S5, the ceiling construction for installing the ceiling is performed. In addition, before or after the ceiling is installed, the wiring arranged in the ceiling space is passed through a position higher than the ceiling. FIG. 22 shows an example of the ceiling space after ceiling construction.

As shown in FIG. 22, the ceiling space has a space whose upper surface and side surfaces are formed by a frame 424 in which concrete is poured, and whose lower surface is formed by a ceiling 422 on which the ceiling material 300 is arranged. Also, each ceiling material 300 forming the ceiling 422 is fixed and supported by hangers 470 connected to the ceiling inserts of the building frame. It should be noted that the hanging member 470 is partially omitted in FIG. 22 for the sake of complicating the drawing. In the space behind the ceiling, there are wiring 440 and wiring 441 provided through pipes. Based on the design drawing, this wiring is provided according to the number of electrical connection devices such as lighting and air conditioning installed in the ceiling space. The ceiling 422 is provided after a sufficient number of wirings are prepared for power supply to the electrical connection devices.

Here, the work of passing the wiring through the ceiling space is performed by a wiring worker who is qualified as an electrician. Also, in this work, a wiring worker who is qualified as an electrician provides a connector for the wiring 440 to be connected to the illumination lamp 400 . A connector is an example of an electric shock prevention connecting device for preventing an electric shock in connection work between an electric connecting device for electrically connecting the electric connecting device and the wiring 440 .

If an electric shock prevention connecting device such as a connector is available, the work of connecting the wiring 440 to the lighting fixture 400 can be performed by a person other than a qualified electrician. In the example of FIG. 22, a connector is provided for the wiring 440 scheduled to be connected to the lighting fixture 400, while a wiring 441 scheduled to be connected to the air conditioner 430 is not provided with an electric shock prevention connecting device such as a connector. . Therefore, in compliance with Japanese laws and regulations at the time of filing, the work of connecting the wiring 441 to the air conditioner 430 must be performed by a qualified electrician. Note that the wiring 440 is partially omitted in FIG. 22 to simplify the drawing.

In this way, in the work of installing the wiring to be arranged in the ceiling space, among the plurality of wirings arranged in the ceiling space, the lighting fixture 400 that is not fixed by the suspension material when installed on the ceiling is electrically connected. As wiring for this purpose, work is performed to provide wiring 440 to which an electric shock prevention connecting device such as a connector is attached.

Moreover, since the air conditioner 430 is fixed by a suspension material, a suspension material 471 is provided as a suspension material for fixing the air conditioner 430 . At the time of FIG. 22, the air conditioner 430 has not yet been attached, so the suspension material 471 does not fix the air conditioner 430 .

The ceiling material 300 is provided with openings for installing ceiling fixtures such as the air conditioner 430 and the lighting fixture 400 . A square opening shown in FIG. 22 is an opening for the air conditioner 430 . Also, the circular opening is a mounting hole 300 a for the lighting fixture 400 . In the example of FIG. 22 , of a total of 18 ceiling materials 300 of 6×3, each of the 12 ceiling materials 300 has an opening for installing an air conditioner 430 in each of the two ceiling materials 300 . An opening for installing the lamp 400 is provided.

As shown in FIG. 22, the mounting hole 300a provided for installing the lighting fixture 400 is smaller than the ceiling material 300. As shown in FIG. In addition, the opening is sufficiently small compared to the light emitting surface of the lighting fixture 400 . In this regard, downlights and emergency lights, in contrast, have openings that are comparable in size to the luminaire. In the illuminating lamp 400, the mounting hole 300a can be 1/3 or less of the area of the light emitting surface. Alternatively, it can be 1/5 or less. Alternatively, it can be 1/10 or less.

The mounting hole 300a for installing the lighting fixture 400 is formed in a circular shape with a diameter of 10 cm to 15 cm, for example. Moreover, the shape of the mounting hole 300a may not be circular, and may be polygonal with a maximum diameter of 15 cm or less. Also, it may be determined based on the size and shape of the power adapter 450 and the like. It is preferable that the mounting hole 300a is large enough for the worker's arm to pass through so that the wiring 440 can be picked up from the living room side in order to mount the lighting device 400. FIG.

Note that the ceiling material 300 does not have to be provided with openings in advance. Generally, a ceiling material 300 without openings is prepared, and a worker drills holes in the ceiling material 300 to provide openings at the site of interior construction. An operation of appropriately providing an opening may be performed on the ceiling material 300 having no opening. The shape of the opening to be prepared may also differ depending on what kind of ceiling fixture is installed. Therefore, the opening may be provided when the ceiling material 300 is fixed by the suspension material 470 and attached to the ceiling, or may be provided after the ceiling is formed.

After the ceiling 422 is installed in this manner, the lighting installation work is performed in the installation work in step S6. FIG. 23 is a diagram showing the connection relationship among the wiring with connector 440, the ceiling material 300, the power adapter 450, and the lighting fixture 400. As shown in FIG. Lighting installation work can be performed by a person who is not qualified as an electrician.

Note that, when the ceiling 422 is provided in the building 410, the living room space, which is the space forming the living room shown in FIG. 20, and the ceiling space, which is the space forming the ceiling shown in FIG. It can be treated as a separate space. Here, the presence or absence of openings in the ceiling material 300 is not considered. Specifically, when the ceiling 422 is formed of the ceiling material 300 that does not have an opening in the building 410, the space above the ceiling 422 that has the ceiling 422 as a part of the space is defined as the ceiling. A back space, a space having a ceiling 422 as a part of the space, and a space below the ceiling 422 is distinguished as a living room space.

First, a worker present in the living room space prepares the lighting fixture 400 and the power adapter 450 in the living room space. The lighting fixture 400 is connected to the power adapter 450 by fitting the mounting adapter of the lighting fixture 400 into the power adapter 450 by a worker present in the room space. Also, by connecting to the DC harness 480 of the power adapter 450 , the illumination lamp 400 receives DC power supply from the power adapter 450 . For example, a DC voltage of 100V is supplied. The connection with the DC harness 480 can also be performed by a worker who is not qualified as an electrician. Note that the fitting adapter 40 corresponds to one form of a mounting adapter. Also, the power supply unit 50 corresponds to one form of the power adapter 450 . Also, the electric cable 51 corresponds to one form of the DC harness 480 .

Since AC power is supplied via the wiring 440, the power adapter 450 has an AC/DC conversion function. The power adapter 450 also has an AC terminal block 460 as a connecting portion for electrically connecting to the wiring with connector 440 via a connector. A worker present in the living room space puts his arm through the opening and pulls the wiring 440 with a connector provided in the space above the ceiling through the opening into the living room space. Then, the connector of the wiring with connector 440 and the AC terminal block 460 are connected in the living room space. Note that the terminal block 52 or 53 corresponds to one form of the AC terminal block 460 .

In addition, in preparation for the case where the lighting fixture 400 has a dimming function for adjusting the intensity and color tone of light emission, the power adapter 450 has a dimming terminal as a connecting portion for connecting to a dimming driver device that controls dimming. have a stand. When using the lighting fixture 400 that does not have a dimming function, the dimming terminal block is unnecessary.

In this way, the wiring with connector 440 and the power adapter 450 arranged in the ceiling space above the formed ceiling 422 through the opening provided in the ceiling material 300 are connected by the connector of the wiring with connector. Work to connect is done.

Also, as shown in FIG. 24 , a worker present in the room space installs the power adapter 450 on the ceiling material 300 . A worker in the living room space places the power adapter 450 connected to the wiring with connector 440 in the ceiling through the opening through which the wiring with connector 440 to be connected passes. The wiring 440 with connector also returns to the ceiling, and the DC harness 480 of the power adapter 450 protrudes into the living room space from the opening. The lighting fixture 400 is connected to a DC harness 480 to receive power supply. In this way, the work of electrically connecting the lighting fixture 400 prepared in the living room space below the formed ceiling 422 and the power adapter 450 is performed.

Further, the lighting device 400 has a fastener 490 and is attached to the ceiling 422 by passing the fastener 490 through the opening and hanging it on the ceiling space of the ceiling material 300 . The fastener 63 of the lighting fixture 400 has springiness (elasticity), and is passed through the opening of the ceiling material 300 from the ceiling surface side (living room space side). After penetrating, the fastener 63 is applied to the ceiling back surface of the ceiling material 300 , so that a load is applied to the ceiling material 300 . When the lighting fixtures 400 are attached to the ceiling 422 , the load of one lighting fixture 400 and one power adapter 450 is applied to one ceiling material 300 . Note that the claw portion 44 corresponds to one form of the fastener 490 . Moreover, the fastener 63 is not limited to a structure having a spring property, and may have a structure in which a load is applied to the ceiling material 300 .

25 and 26, instead of attaching the fastener 490 of the lighting fixture 400 to the opening of the ceiling material 300, the fastener 491 of the power adapter 451 is attached to the opening of the ceiling material 300. good too.

Either the work of connecting the wiring with connector 440 and the power adapter 450 or the work of connecting the power adapter 450 and the lighting fixture 400 may be performed first. Moreover, the operation of attaching the power adapter 450 to the ceiling material 300 may be performed before or after the lighting device 400 is connected to the power adapter 450 .

In this way, the fixture 490 of the lighting fixture 400 electrically connected to the wiring with connector 440 is passed through the opening of the ceiling material 300 to install the lighting fixture 400 on the ceiling material 300 . Alternatively, the fastener 491 of the power adapter 451 electrically connected to the wiring with connector 440 is passed through the opening of the ceiling material 300 to install the lighting fixture 400 on the ceiling material 300 .

Also, the wiring with connector 440 and the power adapter 450 are connected by the connector of the wiring with connector 440, and the work of arranging the power adapter 451 electrically connected to the wiring with connector 440 in the ceiling space is performed. An operation of installing the lighting fixture 400 on the ceiling material 300 is performed.

Note that, as described in the embodiment related to the lamp 100, the illumination lamp 400 may be attached to the ceiling material 300 via the mounting bracket 60 having the mounting spring 63 as a fastener. In this case, after the power supply adapter 450 electrically connected to the wiring 440 with connector is arranged in the space above the ceiling, the mounting bracket 160 is installed on the ceiling material 300 with fasteners.

In addition, the DC harness 480 of the power adapter 450 arranged in the ceiling space is drawn into the living room space through the opening 64 of the mounting bracket 60, and the DC harness 480 is connected to the lighting fixture 400 in the living room space. It is electrically connected to the lighting fixture 400 . Also, by electrically connecting to the power adapter 450 , the lighting fixture 400 is electrically connected to the wiring with connector 440 .

The lighting device 400 is installed on the mounting bracket 60 while the power adapter 450 and the lighting device 400 are electrically connected. The claw portion 44 of the fitting adapter 40 corresponds to a fastener for installing the illumination lamp 400 to the mounting bracket 60 . That is, the fasteners of the mounting bracket 60 are used for installation on the ceiling material 300 , and the fasteners for the lighting fixture 400 are used for installation on the mounting bracket 60 .

In this manner, the fixture of the lighting fixture 400 is passed through the opening 64 of the mounting fixture 60, and the work of installing the lighting fixture 400 to the ceiling material 300 via the mounting fixture 60 is performed. The mounting bracket 60 can be said to be one form of an auxiliary mounting member that aids installation of the lighting fixture 400 on the ceiling material 300 . The mounting support member may have, for example, the same shape and structure as the mounting bracket 60 and may be made of a material other than metal.

21, when the lighting fixtures 400 are connected and arranged, as described in the embodiment related to the lighting fixture 100, the adjacent lighting fixtures 400 to be connected (here, the adjacent lighting fixtures 400 are arranged in the second order). 1 lighting fixture and a second lighting fixture) can be connected using the first connecting member 91 of one lighting fixture 400 and the second connecting member 92 of the other lighting fixture 400. .

First, the first lighting fixture electrically connected to the wiring with a connector is passed through the opening of the ceiling material 300 to install the first lighting fixture on the ceiling material 300 . Next, the second lighting fixture electrically connected to the wiring with connector is connected to the first lighting fixture and passed through the opening of the ceiling material 300 , and the second lighting fixture connected to the first lighting fixture is connected to the ceiling material 300 . to be installed.

In addition, as described in the embodiments of the lamp 100 and the lamp 200, the illumination lamp 400 can be moved while being installed on the ceiling material 300, so that the position of the illumination lamp 400 with respect to the ceiling material 300 can be adjusted. can.

When the lighting fixtures 400 are connected and arranged as shown in FIG. 21, in a state in which a plurality of lighting fixtures 400 connected to each ceiling material 300 are installed, the position of the opening of the ceiling material 300 may be misaligned. It is conceivable that it may be slightly out of position. In particular, it is preferable that such connected lights are arranged in a straight line with high precision from the viewpoint of aesthetics.

Therefore, after performing the work of installing and connecting the first lighting device and the second lighting device to the respective ceiling materials 300, the first lighting device or the second lighting device is moved, and the first lighting device and the second lighting device are moved. Work to adjust the connection with lighting equipment.

It should be noted that the first lighting fixture and the second lighting fixture are connected and installed at the stage of installation on the ceiling 422, but there is a possibility that the connection at this stage is more misaligned than intended. . Therefore, in the work of completing a living room space in which a plurality of lighting fixtures 400 are connected to the ceiling 422 in the building 410, the first lighting fixture and the second lighting fixture are connected to each ceiling material 300. A first connection work for installation, and after the first connection work, the first lighting device or the second lighting device installed on the ceiling material 300 is moved to adjust the connection between the first lighting device and the second lighting device. The connection work divided into two steps is included.

Alternatively, the second lighting device may be connected to the first lighting device after adjusting the position of the first lighting device. In other words, after performing the work of installing the first lighting fixture on one ceiling material 300 and the work of adjusting the position without being connected to the second lighting fixture, the second lighting fixture is installed on the adjacent ceiling material. 300 may be installed and connected to the first lighting fixture. In this case, the second lighting device may be connected to the first lighting device while adjusting its position, or may be connected and then adjusted in position.

For example, if at least one of the plurality of lighting fixtures 400 connected and installed on the ceiling 422 includes a lighting fixture that is arranged near the wall 421 and is installed in contact with the wall 421, the lighting fixture is installed near the wall. It is preferable that the lighting fixture 400 that is connected to the lighting fixture 400 is used as the first lighting fixture, and the lighting fixture 400 that is connected to the lighting fixture 400 is used as the second lighting fixture.

According to the example of FIG. 21, the lighting fixture 400 installed near the wall is the lighting fixture 400 positioned at the end in the connecting direction. One of the opposing side surfaces is a connecting surface that connects with another lighting fixture 400, and the other side is a wall installation surface that is installed near the wall without connecting with the other lighting fixture 400. When there are three or more illumination light fixtures 400 to be connected, the illumination light fixtures 400 installed next to the illumination light fixtures 400 installed along the wall are connected to the other illumination light fixtures 400 on both opposing sides.

An installation worker forms an opening in the ceiling material 300 installed along the wall. This opening is provided in the vicinity of the wall 421 so that the wall installation surface of the first lighting fixture does not come into contact with the wall 421 when the first lighting fixture whose position can be adjusted in the direction of the wall 421 is installed. It is provided at a position where The vicinity of the wall 421 is a range that can be brought into contact with the wall 421 by adjusting the position. For example, if the position-adjustable movement range is 10 mm, the opening position should be designed so that the wall installation surface is positioned about 5 mm away from the wall 421 in consideration of errors and tolerances.

Next, the installation worker installs the first lighting fixture to be installed near the wall on the ceiling material 300 through the opening in the ceiling material 300 at a position away from the wall. At this time, the first illumination lamp is installed in a state in which the position can be adjusted in the direction of the wall 421 .

Next, while being installed on the ceiling material 300, the first lighting fixture is moved to a position approaching the wall edge of the wall 421, and a predetermined portion of the wall installation surface of the first lighting fixture is brought into contact with the wall 421.例文帳に追加Next, the second illumination lamp is connected to the first illumination lamp. Also, the connection between the first lighting device and the second lighting device is adjusted by moving the second lighting device. Since the position of the first lighting fixture is adjusted so that it is in contact with the wall 421, it is better to move the second lighting fixture without moving the first lighting fixture when adjusting the position of the second lighting fixture. preferable.

The movement range in which the position of the lighting fixture 400 installed on the ceiling material 300 can be adjusted may be about 10 mm to 15 mm in one direction. Alternatively, at least 10 mm may be movable. This is because it is sufficient to cover the influence of the positional deviation of the mounting hole 300a and the component tolerance of the lighting fixture 400 as the movement range. In addition, it does not need to be within this range.

In any case, this movement range is a predetermined range obtained by the mechanism of the illumination lamp 400 itself and in which the illumination lamp 400 can move. In other words, the size of the mounting hole 300a, the size of the opening of the mounting bracket 60, etc., and the size of the fitting portion of the lighting fixture 400 make it possible to move. Instead, it is a permissible range of movement predetermined as a mechanism of the illumination lamp 400 itself.

Adjustments such that the range of movement in one direction exceeds the width of the lighting fixture 400 in that direction and adjustments that exceed the width of one ceiling material 300 are positional adjustments that cover the effects of the tolerances and deviations referred to here. It is an adjustment with a different meaning. Note that the illumination lamp 400 may further include such adjustments with different meanings and allow both adjustments.

Also, in the work of installing the first illumination lamp and the second illumination lamp on the ceiling material 300, the illumination adjustment member is provided between the connection surface of the first illumination lamp and the connection surface of the second illumination lamp. The first illumination lamp and the second illumination lamp are arranged. The illumination adjustment member is a member for adjusting the illumination of the connecting portion when connecting the plurality of illumination lamps 400 .

In the description of the embodiment of the lamp 100, the side surface on which the transmittance control member 85 is provided is used as the connecting surface, thereby adjusting the illumination balance between the connecting portion and other portions. The transmittance control member 85 can be said to be an example of an illumination adjustment member. In the embodiment of the lamp 100 , each of the first illumination lamp and the second illumination lamp has the transmittance control member 85 , but only one of the illumination lamps 400 may have the transmittance control member 85 .

In addition, in the embodiment of the lighting fixture 100, the transmittance control member 85 is also provided on the side surface facing the connecting surface. It is not necessary to have the lighting adjustment member on the side surface. At least one side surface of any one of the illumination lamps 400 to be connected is provided with an illumination adjustment member.

Further, in the embodiment of the lamp 100, the lamp 100 having the transmittance control member 85 is prepared, but the illumination adjustment member may be separately prepared and provided on the required side surface. For example, if it is made of a material that can be attached, the lighting adjustment member can be provided on the connecting surface of the lighting fixtures at an arbitrary timing before the work of connecting the lighting fixtures.

For example, at the construction site, the lighting fixture 400 without the lighting adjustment member is prepared, and at the site where the living room space is constructed, the lighting adjustment member is attached to the connecting surface of the first lighting fixture 400 or the second lighting fixture. Work is done to set up. If the illumination adjustment member is made of a detachable adhesive material, it can be removed even if the illumination adjustment member is accidentally installed on a side surface that should not be installed, and it can be replaced with another illumination lamp 400. It is convenient because it can be used.

In addition, the power adapter 451 is arranged in the ceiling space of the ceiling material 300 having the opening near the opening through which the power adapter 451 passes. Therefore, when one lighting fixture 400 is attached to one ceiling material 300 , one power supply adapter 451 connected to the lighting fixture 400 is arranged in the one ceiling material 300 . Therefore, one power adapter 451 and one lighting fixture 210 act as a load applied to one ceiling material 300, as in the first embodiment.

Note that the power adapter 451 may be arranged on the ceiling material 300 to which the illumination lamp 400 is not attached. For example, power adapter 451 may be moved so that it is placed in ceiling material 300 that does not have openings. By doing so, the load applied to one ceiling material 300 can be reduced. For example, a total of two power adapters 451 arranged on two ceiling materials 300 in FIG. 24 may be arranged on one ceiling material that does not have an opening. However, if the distance to the ceiling material 300 is too far to reach even with an arm stretched out, the task of arranging the power adapter 451 may be difficult or troublesome.

In this way, since the installation work of the lighting device 400 does not involve fixing with the hanging member 470, it is sufficient to provide an opening that allows the wiring with connector 440 in the ceiling space to be pulled out into the living room space. In other words, in order to install the lighting device 400 on the ceiling 422, it is sufficient to have an opening large enough to pass an arm through. On the other hand, in the case of a lighting fixture that needs to be fixed with the suspension member 470, it is difficult to attach the lighting fixture from the room space side using only an opening large enough for an arm to pass through.

In addition, by preparing wiring 440 with a connector in the ceiling space in advance before installing the lighting fixture 400, even a person who is not qualified as an electrician can electrically connect the lighting fixture 400 and the wiring in the ceiling. You can do the work of connecting Therefore, it is possible for a worker who drills a hole in the ceiling material 300 to install the ceiling material 300 as a part of the ceiling, and then installs the illumination lamp 400 as it is.

In other words, in the construction of the building 410, instead of supplying the lighting fixture 400 to the electrical material trading company, the lighting fixture supplier supplies the lighting fixture 400 to the ceiling installation worker, and the ceiling installation worker performs the ceiling construction of the lighting fixture 400. It is possible to

The embodiments of the present disclosure have been described above with reference to specific examples. However, the present disclosure is not limited to these specific examples. Based on the above-described embodiments of the present disclosure, all modes that can be implemented by those skilled in the art by appropriately designing and modifying are also within the scope of the present disclosure as long as they include the gist of the present disclosure. In addition, within the scope of the idea of the present disclosure, those skilled in the art can conceive of various modifications and modifications, and it is understood that these modifications and modifications also fall within the scope of the present disclosure. .

DESCRIPTION OF SYMBOLS 10... Lamp main body 11... Chassis 12... Removable member 20... Light source module 22... Light source 30... Cover 36... Side cap 40... Fitting adapter 44... Claw part 60... Mounting bracket 70... Adapter holding member 80 Adapter fixing member 85 Transmittance control member 91 First connecting member 92 Second connecting member 100 Lamp 100a First lamp 100b Second lamp , 400 ... lighting fixture

Claims (8)

A method of constructing a building comprising:
Among the plurality of wirings arranged in the ceiling space of the ceiling formed by arranging a plurality of ceiling materials, it is electrically connected to a light weight large lighting fixture that is a lighting fixture that does not have a hanging material when installed on the ceiling. A step of providing wiring with a connector as wiring for connection;
a step of connecting, via an opening provided in the ceiling material, the wiring with connector disposed in the ceiling space above the formed ceiling and a power adapter with a connector of the wiring with connector;
a step of electrically connecting each of the plurality of large lightweight lighting fixtures prepared in a living room space below the formed ceiling with the power adapter;
a step of passing a first lighting fixture among the plurality of light and large lighting fixtures electrically connected to the wiring with connector through an opening in the ceiling material to install the first lighting fixture in the ceiling material;
A second lighting fixture among the plurality of lightweight and large lighting fixtures electrically connected to the wiring with a connector is connected to the first lighting fixture, passed through the opening of the ceiling material, and connected to the first lighting fixture. a step of installing the second illumination light fixture on the ceiling material;
a step of adjusting the position of the first illumination lamp or the second illumination lamp installed on the ceiling material with respect to the ceiling material within a predetermined range in which the light and large illumination lamp can be moved;
How to have In the step of installing the first illumination lamp on the ceiling material and the step of installing the second illumination lamp on the ceiling material,
The illumination adjusting member is disposed between a connecting surface of the first lighting device connected to the second lighting device and a connecting surface of the second lighting device connecting to the first lighting device. 2. The method of claim 1, wherein a first lighting fixture and said second lighting fixture are arranged. 2. The first illumination lamp or the second illumination lamp provided with the illumination adjustment member on at least one side surface is installed on the ceiling material with the side surface on which the illumination adjustment member is provided as a connecting surface. The method described in . A step of providing an illumination adjustment member on the connecting surface of the first lighting device or the connecting surface of the second lighting device before connecting the first lighting device and the second lighting device;
3. The method of claim 2, further comprising: 5. The method according to any one of claims 2 to 4, wherein the illumination adjusting member provided on the first lighting fixture or the second lighting fixture is detachable. 5. The first lighting device according to any one of claims 2 to 4, wherein the first lighting device is not provided with an illumination adjustment member on a side surface facing the connecting surface and is not connected to another lighting device on the side surface. the method of. 10 mm
7. A method according to any one of claims 1 to 6, which is ∼15 mm. 8. The lightweight large lighting fixture has a total luminous flux of 2500 lm or more, a light emitting surface area of 45000 mm ² or more, and a weight of 0.5 kg or more to less than 2.5 kg. The method according to item 1.

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