JPH063056B2 - System ceiling and system room - Google Patents

Description

TECHNICAL FIELD The present invention relates to a system ceiling and a system room in which an inner ceiling plate is attached to a space inside a square-shaped lighting fixture.

[Prior Art] A system ceiling A has a rectangular shape formed by the bridging members 4 in which a plurality of bridging members 4 having an inverted T-shaped cross section shown in FIG. Ceiling board 2 on multiple frames
It can be assembled by placing. As shown in FIG. 8, the ceiling plate 2 is formed of a rectangular frame-shaped frame 5 and a ceiling material 6 attached to the frame 5. As the ceiling material 6, an asbestos sound absorbing material is used. The luminaire 1 used for such a system ceiling A has a U-shaped cross-section as shown in FIG. 7 and a generally U-shaped cross-section as shown in FIG. 10 (c). The instrument main body 8 is provided, and the straight tube-shaped lamp 7 is arranged on each side of the instrument main body 8. FIG. 10 (a) is on the upper surface of the instrument body 8.
Ballast box 10 containing ballast 9 as shown in FIG.
And the glow lamp 11 is attached to the outer surface of the inner plate 8a. A mounting plate 13 for mounting the socket 12 is fixed inside the instrument body 8, and a reflecting plate 14 coated with white melamine is mounted on the lower surface of the mounting plate 13. In addition, a white melamine coating is also applied to the inner surface of the instrument body 8 where the lamp 7 is exposed to light. As shown in FIG. 10 (c), the outer shape of the lighting fixture 1 is smaller than the size of the frame part formed by the bridging member 4, and a gap is formed between the frame part and the frame part. 4 of the instrument body 8
A fixing member 15 (shown in FIGS. 10A and 10B) fixed to a corner is attached to the vertical side 4a of the bridging member 4, and the lighting fixture 1 is attached to the frame portion. A return baffle 16 is attached to the gap formed between the lighting fixture 1 and the frame portion,
The insertion portion between the return baffle 16 and the frame portion is used as an air outlet of the air conditioner. That is, the diffuser 18 connected to the air conditioner by the flexible duct 17 is attached to the air outlet. Outer collars 8d are formed on both side edges of the opening of the instrument body 8, and the outer collar 8 on the inner plate 8a side is formed.
The inner ceiling plate 3 is placed on d, and the inner ceiling plate 3 is attached to the space inside the instrument body 8. This inner ceiling plate 3 is also made up of a frame 5 and a ceiling material 6, and has a rectangular hole 3a formed in the center, and the tip of a sprinkler pipe 19 hanging from the ceiling is arranged in the rectangular hole 3a. The plate plate 20 and the sprinkler head 21 are attached to the tip.

[Problems to be Solved by the Invention] However, when the lighting fixture 1 as described above is used, there is a problem that the height of the inner ceiling plate 3 seems to be lower than the height of the ceiling plate 2. The inner ceiling plate 3 and the ceiling plate 2 are attached at substantially the same height, and are similarly finished using the same material. Therefore, the brightness of the inner ceiling plate 3 and the ceiling plate 2 should be almost the same. However, when viewed by the eyes of a person who adjusts to the brightness of the lighting fixture 1, the inner ceiling plate 3 looks darker than the ceiling plate 2 due to the illusion. Thus, the inner ceiling plate 3 looks low because it looks low even if it has the same height.

The present invention has been made in view of the above points, and when it is an object of the present invention, there is provided a system ceiling and a system room in which the inner ceiling plate is viewed at the same height as the ceiling plate or higher. Especially.

[Means for Solving the Problems] In order to achieve the above object, the present invention assembles by mounting a ceiling plate on a plurality of rectangular frame portions formed by stretching a bridging member around a ceiling in a grid pattern. In a system ceiling to be installed, lighting fixtures in which lamps are respectively arranged on four sides of a fixture main body having a U-shaped cross-section with a downward opening are embedded in the frame part, The lower end position of the inner plate of the main body is formed higher than the lower end position of the outer plate, and the inner ceiling plate is placed on the outer brim formed at the lower end of the inner plate, and the inner ceiling plate is placed in the space inside the lighting fixture. Is attached.

In addition, it is preferable to provide a lighting device in which a lower end position of the inner plate is a position where the inner ceiling plate is irradiated with the direct light of the lamp or the diffused light of the lamp light by the outer plate.

In order to achieve the above object, a ceiling plate is placed on a plurality of rectangular frame portions formed by stretching a bridging member around a ceiling in a grid pattern, and the assembly is assembled. A lighting fixture in which lamps are arranged on each of the four sides of the fixture body, which has a V-shaped overall shape, is embedded in the above frame portion, and is attached to the outer collar formed on the lower end of the inner plate of the fixture body. In a system ceiling in which the inner ceiling plate is placed and the inner ceiling plate is attached to the space inside the lighting fixture, the reflectance or brightness of the inner ceiling plate may be set higher than that of the ceiling plate outside the lighting fixture.

Further, the ceiling plate is placed on a plurality of rectangular frame portions formed by stretching the bridging member around the ceiling in a grid pattern, and assembled, and the cross-sectional shape is a U shape with a downward opening and the entire shape is a square shape. A lighting fixture in which lamps are arranged on each of the four sides of the fixture body is embedded in the frame, and the inner ceiling plate is placed on the outer collar formed at the lower end of the inner plate of the fixture body. In a system room including a system ceiling with an inner ceiling plate attached to a space inside a lighting fixture, in order to achieve the above object,
The reflectance of the floor surface portion facing the inner ceiling plate and the lighting fixture may be set higher than the reflectance of other floor surface portions.

[Operation] As described above, the present invention provides a lighting fixture in which lamps are arranged on each of four sides of a fixture body having a U-shaped cross-section with a downward opening as described above Embedded in the inner part of the luminaire, the lower end position of the inner plate of the fixture main body is formed higher than the lower end position of the outer plate, and the inner ceiling plate is placed on the outer brim formed at the lower end of the inner plate. By installing the inner ceiling plate in the space of, the height of the inner ceiling plate is made higher than the ceiling plate outside the luminaire, and the inner ceiling plate is at the same height as the ceiling plate outside the luminaire or higher. Make it visible

Further, by providing a lighting device in which the lower end position of the inner plate is positioned so that the direct light of the lamp or the diffused light of the lamp light from the outer plate is irradiated to the inner ceiling plate, the direct light of the lamp or the lamp light from the outer plate is Irradiating diffused light to the inner ceiling plate to brighten the inner ceiling plate and to make the height of the inner ceiling plate higher than that of the outside of the lighting fixture, effectively, Make it visible at or above the outer ceiling panel.

Further, the ceiling plate is placed on a plurality of rectangular frame portions formed by stretching the bridging member around the ceiling in a grid pattern, and assembled, and the cross-sectional shape is a U shape with a downward opening and the entire shape is a square shape. A lighting fixture in which lamps are arranged on each of the four sides of the fixture body is embedded in the frame, and the inner ceiling plate is placed on the outer collar formed at the lower end of the inner plate of the fixture body. , In the system ceiling where the inner ceiling plate is installed in the space inside the luminaire, by making the reflectance or brightness of the inner ceiling plate higher than the outside ceiling plate of the luminaire, the inner ceiling plate looks apparently brighter. Make sure that the inner ceiling plate is at the same height as or higher than the outer ceiling plate of the luminaire.

Furthermore, the ceiling plate is mounted on a plurality of rectangular frame portions formed by arranging the bridging members around the ceiling in a grid pattern, and is assembled. A lighting fixture in which a lamp is arranged on each of four sides of a letter-shaped fixture body is embedded in the frame portion, and an inner ceiling plate is placed on an outer collar formed at a lower end of an inner plate of the fixture body. In order to achieve the above object, in a system room including a system ceiling in which an inner ceiling plate is attached to the space inside the lighting fixture, in order to achieve the above object, the reflectance of the floor surface portion facing the inner ceiling plate and the lighting fixture is adjusted to other floors. By making it higher than the reflectance of the surface part, the inner ceiling plate is brightened by the reflection from the floor with high reflectance, and the inner ceiling plate looks as high as or higher than the outer ceiling plate of the luminaire. To do so.

Example 1 FIGS. 1 and 2 show an example of the present invention. In this embodiment, the length of the inner plate 8a of the instrument body 8 is made shorter than the length of the outer plate 8b, and the direct light of the lamp 7 is directed to the inner ceiling plate 3
The lower end of the inner side 8a is at least higher than the lower end of the lamp 7 so as to hit the lower surface of the lamp. The inner ceiling plate 3 is mounted on the outer flange 8d formed at the lower end of the inner plate 8a. The reflector 1 of the lighting fixture 1 of this embodiment
Reference numeral 4'shows that both ends are bent upward and the central portion is formed into a concave surface having a substantially arc shape, and the concave surface having an arc shape is formed to have a size extending from a lower end of the outer plate 8b to a lower end of the inner plate 8a. The reflecting plate 14 'is mounted by locking the tip of the bent portion to a locking piece 8e protruding from both side plates 8a and 8b, and screwing the socket 12 to the mounting plate 13' to which the socket 12 is mounted. is there. In the case of this embodiment, since the direct light and the reflected light of the lamp 7 are applied to the inner ceiling plate 3, the inner ceiling plate 3 becomes bright, and therefore the inner ceiling plate 3 does not look low due to an optical illusion. Moreover, since the inner ceiling plate 3 is actually higher, it looks higher than the ceiling plate 2. The mounting structure of the lighting fixture 1 to the bridging member 4 and the structure of the air outlet of the air conditioner are different from those of the conventional example, but the description is omitted because it is not the essential point of the present invention.

[Embodiment 2] FIG. 3 shows another embodiment of the present invention. In this embodiment, the lower end of the inner plate 8a is lower than the lower end of the lamp 7 so that only the diffused light from the inner surface of the outer plate 8b is applied to the lower surface of the inner ceiling plate 3. In the case of the present embodiment, the inner ceiling plate 3 is made lighter by the amount that the inner ceiling plate 3 looks lower, and the inner ceiling 3 is slightly raised so that the heights of the ceiling plate 2 and the inner ceiling plate 3 appear to be substantially the same. It was done like this.

As shown in FIG. 4, the heights of the lower ends of both side plates 8a and 8b are the same, the tip of the outer brim 8d of the inner plate 8a is bent upward, and the inner ceiling plate 3 is placed on the bent piece 8f. By mounting, the height of the inner ceiling plate 3 can be simply increased to compensate for the lower inner ceiling plate 3.

[Embodiment 3] FIG. 5 shows still another embodiment of the present invention. In this embodiment, by changing the material or finish of the inner ceiling plate 3 ', the brightness of the ceiling plate 2 and the inner ceiling plate 3'can be seen to be uniform. Therefore, the structure may be exactly the same as the conventional example. In order to increase the reflectance of the inner ceiling plate 3 ', for example, a coated metal plate, glass wool with a highly glossy vinyl chloride sheet, a resin panel of acrylic or the like may be used. Further, when the brightness of the ceiling plate 2 and the inner ceiling plate 3'is changed, the inner ceiling plate 3'may be finished by applying a coating having different brightness.

[Embodiment 4] In each of the above-described embodiments, the inner ceiling plate 3 is brightened by the system ceiling A itself so that it looks high, but in the present embodiment, the above effect is achieved by the floor surface B facing the system ceiling A. Is getting That is, as shown in FIG. 6, a floor surface portion C where the inner ceiling plate 3 of the system ceiling A and the lighting fixture 1 face each other.
Is higher than the reflectance of other floor surfaces B. In this way, the light C of the luminaire 1 can be reflected to the system ceiling A by the high reflectance portion C of the floor surface B, so that the inner ceiling plate 3 becomes bright and the inner ceiling plate 3 looks low. Disappears. The size of the high reflectance portion C is preferably the same area as the size of the inner ceiling plate 3 of the system ceiling A and the lighting fixture 1 or slightly larger, but to some extent even when the size is small. The effect of is obtained.

[Effects of the Invention] As described above, the present invention provides a lighting fixture in which lamps are arranged on four sides of a fixture body having a U-shaped cross-section opening downward and an overall shape of a square bracket. It is embedded in the frame part, the lower end position of the inner plate of the fixture body is formed higher than the lower end position of the outer plate, and the inner ceiling plate is placed on the outer brim formed at the lower end of the inner plate to provide a lighting fixture. Since the inner ceiling board is installed in the space inside, the height of the inner ceiling board is higher than the outer ceiling board of the luminaire, and the inner ceiling board is the same or more than the outer ceiling board of the luminaire. You can make it look high.

Further, by providing a lighting device in which the lower end position of the inner plate is positioned so that the direct light of the lamp or the diffused light of the lamp light from the outer plate is irradiated to the inner ceiling plate, the direct light of the lamp or the lamp light from the outer plate is The diffused light is radiated to the inner ceiling plate, the inner ceiling plate becomes brighter, and the height of the inner ceiling plate is made higher than that of the ceiling plate outside the lighting fixture. You can make it look as high as or higher than the outside ceiling panel.

Further, the ceiling plate is placed on a plurality of rectangular frame portions formed by stretching the bridging member around the ceiling in a grid pattern, and assembled, and the cross-sectional shape is a U shape with a downward opening and the entire shape is a square shape. A lighting fixture in which a lamp is arranged on each of four sides of a fixture-shaped body is embedded in the frame portion, and an inner ceiling plate is placed on an outer flange formed at a lower end of an inner plate of the fixture body. , In the system ceiling where the inner ceiling plate is installed in the space inside the luminaire, by making the reflectance or brightness of the inner ceiling plate higher than the outside ceiling plate of the luminaire, the inner ceiling plate looks apparently brighter. The inner ceiling plate can be seen to be at the same height as or higher than the outer ceiling plate of the luminaire.

Furthermore, the ceiling plate is mounted on a plurality of rectangular frame portions formed by arranging the bridging members around the ceiling in a grid pattern, and is assembled. A lighting fixture in which a lamp is arranged on each of four sides of a letter-shaped fixture body is embedded in the frame portion, and an inner ceiling plate is placed on an outer collar formed at a lower end of an inner plate of the fixture body. In order to achieve the above object, in a system room including a system ceiling in which an inner ceiling plate is attached to the space inside the lighting fixture, in order to achieve the above object, the reflectance of the floor surface portion facing the inner ceiling plate and the lighting fixture is adjusted to other floors. By making it higher than the reflectance of the surface part, the inner ceiling plate becomes brighter due to the reflection from the floor surface with high reflectance, and the inner ceiling plate looks as high as or higher than the ceiling plate outside the lighting equipment. You can

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a first embodiment of the present invention,
Figure (a) is a concrete sectional view of the same as above, Figure (b) is a bottom view,
FIG. 4 is a sectional view of the second embodiment, FIG. 4 is a sectional view of an application example,
FIG. 5 is a schematic sectional view of the third embodiment, and FIG.
FIG. 7 is an explanatory view showing a structure of an embodiment, FIG. 7 is a schematic sectional view of a conventional example, FIG. 8 is an exploded perspective view of a system ceiling, FIG. 9 is a bottom view of the system ceiling after assembly, and FIG. (a)-(c) is a concrete sectional view same as the above, a bottom view, and a bottom view showing the whole lighting fixture. A is a system ceiling, B is a floor surface, 1 is a lighting fixture, 2 is a ceiling plate, 3 and 3'are inner ceiling plates, 4 is a bridge member, 7 is a lamp,
8 is an instrument main body, 8a is an inner plate, 8b is an outer plate, and 8d is an outer collar.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sai Asahi 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Hitoshi Onishi, 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd.

Claims (4)

[Claims] 1. A system ceiling assembled by mounting ceiling plates on a plurality of rectangular frame portions formed by straddling a bridging member around the ceiling in a grid pattern, and having a U-shaped cross section with a downward opening. By embedding the lighting fixtures in which lamps are arranged on the four sides of the fixture body whose overall shape is square-shaped, in the above-mentioned frame part, the lower end position of the inner plate of the fixture body is A system ceiling in which the inner ceiling plate is mounted on the outer flange formed at the lower end of the inner plate, and the inner ceiling plate is attached to the space inside the lighting fixture. 2. The system ceiling according to claim 1, further comprising a lighting fixture in which a lower end position of the inner plate is located at a position where direct light of the lamp or diffused light of the lamp light by the outer plate is applied to the inner ceiling plate. 3. A ceiling plate is mounted on a plurality of rectangular frame parts formed by stretching a bridging member around a ceiling in a lattice shape, and is assembled, and the overall cross-sectional shape is a U-shape. A lighting fixture in which lamps are arranged on each of four sides of a square-shaped fixture body is embedded in the frame portion, and an inner ceiling plate is mounted on an outer collar formed at a lower end of an inner plate of the fixture body. System ceiling in which the inner ceiling plate is installed in the space inside the luminaire, where the reflectance or brightness of the inner ceiling plate is higher than the ceiling plate outside the luminaire. 4. A ceiling plate is mounted on a plurality of rectangular frame parts formed by stretching a bridging member around a ceiling in a grid pattern, and is assembled. A lighting fixture in which lamps are arranged on each of four sides of a square-shaped fixture body is embedded in the frame portion, and an inner ceiling plate is mounted on an outer collar formed at a lower end of an inner plate of the fixture body. In a system room equipped with a system ceiling in which the inner ceiling plate is installed in the space inside the lighting fixture, the reflectance of the floor surface portion facing the inner ceiling plate and the lighting fixture is better than the reflectance of other floor surface portions. A raised system room.