JPH0754436A - System ceiling - Google Patents

Abstract

PURPOSE:To provide interchangeability to ceiling panels and equipments, at the same time, to make it possible to load and unload them from an indoor side and to promote the beauty of the ceiling face. CONSTITUTION:Upper horizontal pieces 7b and interlocking stand-up pieces 7d are formed on a plurality of ceiling bars 7 parallel with each other suspended through a hanger bolt 3 hung down from a ceiling slab 1. Ceiling panels 10 are flush with an equipment enclosure 20 loaded with equipments 21. The interlocking stand-up pieces 7d of the ceiling bars 7 are interlocked with two sides opposed to the ceiling panels 10 in a detachable manner and, at the same time, an outward flange 15 and an inward flange 16 interlocked with each other in a detachable manner are formed. Interlocking metal fixtures 28 and 29 interlocked with the upper horizontal pieces 7b of the ceiling bars 7 in a detachable manner are mounted to two sides opposed to the equipment enclosure. According to the constitution, interchangeability between the ceiling panels 10 and equipment enclosure 20 loaded with the equipments 21 can be obtained, and the ceiling panels 10 and equipment enclosure 20 can be loaded and unloaded between the ceiling bars 7 from the indoor side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system ceiling, and more particularly to a system ceiling in which a ceiling panel and equipment are installed between ceiling bars.

[0002]

2. Description of the Related Art Generally, a system ceiling is used in which a ceiling panel and equipment such as lighting equipment are incorporated on the same ceiling surface. Therefore, in a conventional structure, a lighting device is supported by facing ceiling bars of a plurality of ceiling bars arranged in parallel, and a ceiling panel is supported between at least one side edge of the lighting device and an upper edge of the facing ceiling bar. Things (Japanese Patent Publication Sho 52-1
6333, Japanese Patent Publication No. 54-1382),
Alternatively, there is known a ceiling structure (see JP-A-62-33959) in which a ceiling member for equipment such as lighting or air conditioning and a ceiling member such as a partitioning ceiling member are detachably installed on a ceiling grid having a rectangular frame. Has been.

[0003]

However, the former, namely Japanese Patent Publication No. 52-16333 and Japanese Patent Publication No. 54-
In the technology described in Japanese Patent No. 1382, since the installation (locking) mode of the equipment such as lighting equipment and the ceiling panel is different, the compatibility between the ceiling panel and the equipment is poor, and the equipment is adjacent when moving the equipment. It is necessary to remove the ceiling panel. Therefore, in the case where the equipment is installed in a line,
The equipment line could not be moved. On the other hand, in the latter, that is, the technique disclosed in Japanese Patent Laid-Open No. 62-33959, the ceiling member for facility equipment and the ceiling member for partition (ceiling panel) are formed in the same shape and mounted on the ceiling grid. Because of the structure, compatibility between the ceiling panel and the equipment can be obtained compared to the former, but since the ceiling member is placed on the ceiling grid from above, in order to perform maintenance of the equipment,
There is also a problem in that a separate ceiling inspection port must be provided, and the ceiling grid is exposed between all ceiling members, resulting in a loss of aesthetics.

The present invention has been made in view of the above circumstances, and makes the ceiling panel and equipment compatible with each other.
It is an object of the present invention to provide a system ceiling that can be attached and detached from the indoor side and that can improve the appearance of the ceiling surface.

[0005]

In order to achieve the above object, the system ceiling of the present invention has a plurality of ceiling bars suspended in parallel from each other via suspension bolts suspended from a ceiling slab. Assuming a system ceiling in which a ceiling panel and equipment are installed between the ceiling bars, the ceiling panel and the equipment housing in which the equipment is mounted are formed in the same plane shape, and the ceiling bar is And a locking portion for the ceiling panel and the equipment casing is provided, and an engaging portion for removably engaging with the locking portion for the ceiling bar is provided on each opposing side portion of the ceiling panel and the equipment casing. , The engaging portions of adjacent ceiling panels are formed to be disengageable from each other so that the ceiling panel and the equipment housing have compatibility with each other, and can be attached and detached from the indoor side. .

In the present invention, it is preferable that a peripheral wall facing the outer wall surface of the ceiling panel is provided on the outer peripheral surface of the lower part of the equipment housing, and a joint member is provided around the outer wall surface of the ceiling panel.

The ceiling bar may have any form as long as the ceiling panel and the locking portion of the equipment housing are provided. For example, the engaging portion of the equipment housing is placed on the upper surface of the ceiling bar. An upper horizontal piece can be provided, and a hook-shaped locking upright piece for locking the engaging portion of the ceiling panel can be provided below the ceiling bar.

The ceiling panel may have any shape as long as the engaging sections of the adjacent ceiling panels are formed so that they can be engaged with and disengaged from each other. The mating portion is formed by an inward flange that engages with the hook-shaped locking upright piece of the ceiling bar, and the engaging portion of the other ceiling panel is an outward flange that is detachably engaged with the upper surface of the inward flange. Can be formed.

[0009]

According to the system ceiling of the present invention configured as described above, the ceiling panel and the equipment casing on which the equipment is mounted are formed in the same plane shape, and the ceiling bar has the ceiling panel and the equipment casing. A locking portion for the body is provided, and an engaging portion that removably engages with the locking portion of the ceiling bar is provided on each of opposite sides of the ceiling panel and the equipment housing, and an engaging portion of an adjacent ceiling panel. By making them detachable from each other, the ceiling panel and the equipment can be arranged in a compatible manner, and the ceiling panel and the equipment housing can be installed between the ceiling bars from the indoor side. Therefore, it is possible to facilitate the change and arrangement of the equipment and facilitate the repair work due to the failure of the equipment and the damage to the ceiling panel, thereby improving the maintenance efficiency of the ceiling.

In addition, a peripheral wall facing the outer wall surface of the ceiling panel is provided on the lower outer peripheral surface of the equipment housing, and a joint member is provided around the outer wall surface of the ceiling panel. By interposing a joint member therebetween, the equipment housing, the ceiling panel, and the ceiling panels can be aligned and arranged, and the appearance of the ceiling finished surface can be improved.

[0011]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of an example of a system ceiling of the present invention seen from the ceiling back side, FIG. 2 is a schematic plan view thereof, and FIG.
4 is an exploded perspective view of a main part thereof, and FIGS. 4 to 7 are sectional views taken along lines AA, BB, CC and DD of FIG. 2, respectively.

The system ceiling of this invention is a ceiling slab 1.
A suspension metal fitting 4 fixed with a nut 3a to a suspension bolt 3 suspended by an anchor 2 and a suspension metal fitting 4
Between the ceiling base material 5 hung up by the ceiling base material 5 and a plurality of ceiling bars 7 which are fixed to the ceiling base material 5 by fixing members 6 in a direction orthogonal to the ceiling base material 5; A plurality of ceiling panels 10 installed in the formed panel mounting space 8 and an equipment housing 20 in which a lighting device 21 is mounted.
And an air outlet 23a for an air conditioner, a speaker 23b,
It is composed of a sprinkler 23c, a smoke detector 25, and an equipment panel 22 to which equipment such as an emergency lighting 23e is attached. The brace fitting 3 is provided at an arbitrary position between the ceiling base material 5 and the ceiling bar 7 (specifically, the center position of each side of the grid portion 9 formed by the ceiling base material 5 and the ceiling bar 7).
0 is attached and the position is adjusted in the horizontal direction.

The ceiling base material 5 is formed of a steel channel-shaped member, and is held by the hook portion 4a of the hook-shaped hanging metal fitting 4 which is attached to the hanging bolt 3 with the fixing nut 3a. Suspended (Fig. 4
Through FIG. 7).

As shown in FIGS. 1 and 8, the breath metal fitting 30 for adjusting the position of the ceiling base material 5 suspended in the horizontal direction as described above has two abutting parts of the ceiling base materials 5. The upper and lower portions of the hanging bolt 3 are connected to a connecting metal fitting 32 having a substantially C-shaped cross section for connecting the ceiling base materials 5 and 5 with a fixing screw 31 which is gripped over and screwed from above. Seismic reinforcement is performed along with horizontal position adjustment. In this case, the brace fitting 30 includes a lower brace fitting 33 that engages with a slit (not shown) formed in the upper piece of the connecting fitting 32, an upper brace fitting 34 that is fixed to the suspension bolt 3, and these. It is configured with a breath bolt 35 that connects the lower breath metal fitting 33 and the upper breath metal fitting 34.

The ceiling bar 7 is formed by bending a steel strip plate material into a substantially J-shaped cross section, and as shown in FIGS. An upper horizontal piece 7b for locking the equipment housing 20 where 3/4 overlaps, a vertical piece 7c hanging from the upper horizontal piece 7b in a crank shape, and a horizontal piece bent from the lower end of the vertical piece 7c. It is composed of a lower horizontal piece 7e having a locking standing piece 7d for locking the ceiling panel 10 at the tip.

As shown in FIG. 3, the fixing metal fitting 6 for connecting the ceiling base material 5 and the ceiling bar 7 which are constructed as described above in an orthogonal manner has a rectangular base portion 6b having a screw hole 6a at the center thereof. And a fixing metal fitting body 6d composed of a pair of bifurcated holding leg pieces 6c hanging from both sides of both ends of the rectangular base 6b in an inclined shape, and a fastening screw 6e screwed into the screw hole 6a from above. At the lower end of each holding leg piece 6c, an inward holding claw 6f that engages with the hanging piece 7a of the upper horizontal piece 7b of the ceiling bar 7 is formed. In order to connect the ceiling base material 5 and the ceiling bar 7 in an orthogonal manner with the fixing bracket 6 configured as described above, after the fixing bracket body 6d is straddled from above the ceiling base material 5, the holding legs on both sides are provided. The holding claw 6f of the piece 6c is engaged with the hanging piece 7a of the ceiling bar 7 to temporarily hold the ceiling bar 7 below the ceiling base material 5, and in this state, the fastening screw 6e is attached to the screw hole 6a of the rectangular base 6b. The ceiling base material 5 and the ceiling bar 7 can be attracted and fixed by screwing (see FIGS. 4 to 7).

As described above, the ceiling base material 5 and the ceiling bar 7 are connected orthogonally to each other, so that the panel mounting space 8 is formed between the ceiling bars 7 and 7, and the ceiling base materials 5 facing each other are formed. And the ceiling bar 7 form a grid portion 9. Even at an intermediate position of the ceiling bar 7 forming the grid portion 9, the above-mentioned connecting metal fitting 32 and the breath metal fitting 30 perform horizontal position adjustment and seismic reinforcement.

As shown in FIG. 3, the ceiling panel 10 has a rectangular steel surface plate 13 having a large number of small holes 11 on the surface thereof and a standing wall 12 on four sides, and the surface plate 13. And a heat insulating / sound absorbing material 14 such as glass wool, which is laid on the back side of the. In this case, the front plate 1
As shown in FIG. 9, 3 bends the outward flange 15 horizontally from the upper end of the edge side standing wall 12 at one end in the longitudinal direction, and horizontally inwards from the upper end of the standing wall 12 at the other end. The flange 16 is bent, and a positioning slit 17 is provided at an intermediate position between the outward flange 15 and the inward flange 16, and locking slits 18 are provided at both side positions thereof.
Is provided. An outwardly inclined piece 15a that inclines outward is bent at the tip of the outward flange 15, and an inwardly inclined piece 16a that inclines inward is bent at the tip of the inward flange 16. Further, inward horizontal pieces 19 are bent from the upper ends of the long side standing walls 12 in the lateral direction of the surface plate 13. Further, as shown by a chain double-dashed line in FIG. 9, a packing 10a having a rectangular cross section, which is a joint member, is attached to the standing walls 12 on two adjacent sides of the surface plate 13 in an L shape.

In the ceiling panel 10 having the surface plate 13 constructed as described above, after the inward flange 16 is locked to the locking upright piece 7d of one of the lower horizontal pieces 7e of the ceiling bar 7 facing each other, The ceiling bars 7, 7 facing each other by locking the outward flange 15 so as to overlap the inward flange 16 of the adjacent ceiling panel 10 locked to the locking upright piece 7d of the other lower horizontal piece 7e. It is installed between.
At this time, the joint piece 40 that engages with the concave portion of the vertical piece 7c of the ceiling bar 7 is engaged with the locking slits 18 of the outward flange 15 and the inward flange 16.
One joint piece 40 locks an intersection of four ceiling panels 10 adjacent to each other. Also, the outward flange 15
Further, the shift preventing member 55 fitted into the positioning slit 17 of the inward flange 16 is fixed to the ceiling bar 7 as described later, so that the horizontal displacement of the ceiling panel 10 is prevented. Therefore, the four ceiling panels 10
Are erected in a state where they are mutually regulated and positioned and prevented from slipping.

Since the packing 10a is interposed in the gap between the adjacent ceiling panels 10 and 10, a slight dimensional error at the time of mounting can be absorbed by the packing 10a, and the ceiling panels 10 and 10 can be separated from each other. It is possible to improve the aesthetics of the finished surface of the ceiling by reducing the gap between.

The joint piece 40 is, for example, ABS.
As shown in FIG. 3, the rectangular joint piece body is formed of a shock-resistant thermoplastic resin member such as resin and slidably fitted in the recess of the vertical piece 7c of the ceiling bar 7. 41
And a pair of elastically deformable inclined wing pieces 42 extending outward from both ends of the joint piece body 41.

Further, as shown in FIG. 3, the shift preventing member 55 is made of a steel member having a substantially C-shaped cross section for holding the ceiling bar 7, and the upper horizontal piece 55a is provided at the center thereof. A screw hole 55b for the fixing screw 56 is provided, and a holding claw 55d that engages with the hanging piece 7a of the ceiling bar 7 is bent at the lower end of the upper hanging piece 55c. The slip prevention member 55 is
After the ceiling panel 10 is erected, the positioning slit 17 for the ceiling panel 10 is pressed against the heat insulating / sound absorbing material 14.
, And in this state, the fixing screw 56 screwed into the screw hole 55b from above is fixed to an arbitrary position of the ceiling bar 7 by pressing the upper surface of the upper horizontal piece 7b of the ceiling bar 7. Therefore, the shift preventing member 55 can prevent the ceiling panel 10 from rattling in the horizontal direction (widthwise direction) (see FIGS. 2 and 3). In addition, the slip prevention member 55 is slidably attached to the ceiling bar 7 in advance,
It is also possible to engage with the positioning slit 17 of the ceiling panel.

On the other hand, the equipment housing 20 is formed in a rectangular shape whose plane is the same as that of the ceiling panel 10.
In this equipment housing 20, a lighting device 21 and a reflection plate 21 are provided.
a is attached and the lower opening 20 of the equipment housing 20
The louver 26 is attached to the a side. The lighting device 21 and the louver 26 are configured to be detachably attached to the equipment housing 20 by a mounting spring (not shown).

In this case, a lower horizontal piece 27a projects from the outer periphery of the louver 26 to the outside of the equipment housing 20, and the tip of the lower horizontal piece 27a faces the standing wall 12 of the ceiling panel 10. The peripheral wall 27b is bent, and the upper horizontal piece 27c is bent from the upper end of the peripheral wall 27b toward the equipment housing 20 side (see FIGS. 4 to 6). Here, the case where the peripheral wall 27b is formed on a part of the louver 26 has been described, but the peripheral wall 27b does not necessarily have to be provided on the louver 26, and may be formed separately or integrally on the lower side of the outer wall 20b of the equipment housing 20. Good.

By thus providing the peripheral wall 27b facing the standing wall 12 of the ceiling panel 10 on the outer peripheral surface of the lower portion of the equipment housing 20, the equipment housing 20 previously attached when the ceiling panel 10 is attached. The standing wall 12 of the ceiling panel 10 can be brought into contact with the peripheral wall 27b to be aligned.
In addition, since the peripheral wall 27b and the standing wall 12 can be in contact with each other via the packing 10a after the mounting, the equipment housing 20 and the lower surface of the ceiling panel 10 can be aligned and arranged on the same plane, and the ceiling can be arranged. It is possible to improve the appearance of the finished surface.

Further, on the upper portions on both short sides of the equipment case 20, engaging fittings 28 and 29 are mounted which are placed and engaged on the upper horizontal piece 7b of the ceiling bar 7. Of these, one of the engaging fittings 28 is, as shown in FIG.
No. 0 side wall 20b, and an engaging piece 28c that is bent horizontally from the upper end of the attaching piece 28a and has a concave portion 28b in the center thereof. And bending pieces 28d for reinforcement at both ends
Is provided. Further, the other engagement fitting 29 is shown in FIG.
As shown in 0, the upper surface 20c and the side wall 2 of the equipment housing 20.
0b, an angled mounting piece 29a, and an engaging piece 29b which is bent horizontally from the tip of the mounting piece 29a and engages in the concave portion 28b of the engaging fitting 28. A hanging piece 29c that engages with the hanging piece 7a of the ceiling bar 7 is provided at the tip of the engaging piece 29b (see FIG. 5). By mounting the fittings 28, 29 on the short side of the equipment housing 20 in this manner, the equipment housing 20 can be detachably installed between the ceiling bars 7 from the indoor side. Further, as shown in FIGS. 11A and 11B, the concave portion 28 b of the engaging fitting 28 of the adjacent equipment housing 20 and the engaging piece 29 b of the engaging fitting 29 are connected to the upper horizontal piece of the ceiling bar 7. 7b
Since they can be engaged on the same plane above, the equipment casing 20 can be positioned in the horizontal direction, and each equipment casing 2 can be positioned.
0 and the ceiling bar 7 independently of the other equipment case 20 adjacent to
It can be installed and removed in the meantime.

In order to prevent the equipment casing 20 from being lifted up due to vibration such as an earthquake when the engaging fittings 28 and 29 are placed and engaged on the ceiling bar 7, as shown in FIG. , A floating prevention fitting 5 slidably attached to the outer wall 20b of the equipment housing 20 and fixed by a screw 51.
0 is engaged with the lower surface of the upper horizontal piece 7b of the ceiling bar 7, or, as shown in FIG. 5, a lifting prevention screw 52 penetrating the outer wall 20b of the equipment housing 20 is attached to the upper horizontal piece of the ceiling bar 7. It is desirable to engage the lower surface of 7b.

Next, the procedure for assembling the system ceiling of the present invention constructed as above will be described.

First, the hanging bolt 3 is hung down on the ceiling slab 1 with the anchor 2 and the hanging bracket 4 is attached to the hanging bolt 3.
Install with the nut 3a. Next, after the ceiling base material 5 is hung by the hook portion 4a of the hanging metal fitting 4, the fixing metal fitting 6 is
The ceiling bar 7 is connected to the lower portion of the ceiling base material 5 in an orthogonal manner, and the panel mounting space 8 is provided between the ceiling bars 7 and 7 facing each other.
And the grid portion 9 are formed.

After the panel mounting space 8 and the grid portion 9 have been formed in this manner, when the equipment 21 is mounted, the equipment housing 20 in which the equipment 21 is mounted is tilted so that the inside of the panel mounting space 8 is from the indoor side. On the upper horizontal piece 7b of one of the ceiling bars 7 facing each other.
Alternatively, after mounting and engaging 29, the fitting housing 29 or 28 is mounted and engaged on the upper horizontal piece 7b of the other opposing ceiling bar 7 to mount the equipment casing 20, that is, the equipment 21.
When mounting the ceiling panel 10, the inward flange 16 of the ceiling panel 10 is attached to the lower horizontal piece 7e and the locking upright piece 7d of one of the facing ceiling bars 7 in the panel mounting space 8.
Then, the ceiling panel 10 is installed by locking the outward flange 15 to the lower horizontal piece 7e and the locking upright piece 7d of the other opposing ceiling bar 7. Hereinafter, in the same manner, 3 pieces are placed in the grid portion 9 formed by the ceiling base material 5 and the ceiling bar 7.
The ceiling panel 7 of the number of sheets is installed, and the ceiling bar 7 of a predetermined place is
The equipment panel 22 is installed between 7 in the same procedure.

After the ceiling panel 10, the equipment housing 20, and the equipment panel 22 are installed in the grid section 9 in this way,
Also in the adjacent grid part 9, similarly, the ceiling panel 1
0 and the equipment panel 22 are erected. At this time, when the ceiling panel 10 is erected, as shown in FIG.
First, after the ceiling panel 10 is inserted into the panel mounting space 8 in a state in which the outward flange 15 side is lifted up and slanted (FIG. 12A), the inward flange 16 side is lifted to lower the ceiling bar 7 horizontally. It moves on the piece 7e and the locking upright piece 7d (FIG. 12 (b)), and the inward flange 16 is dropped and locked to the lower horizontal piece 7e and the locking upright piece 7d (FIG. 12).
(C)). Then, the outward flange 15 is locked to the upper side of the inward flange 16 of the ceiling panel 10 already locked, and the ceiling panel 10 is installed (FIG. 12).
(D)).

When the equipment casing 20 is erected, as shown in FIG. 13, for example, in the same manner as when the ceiling panel 10 is erected, the equipment casing 20 is lifted and slanted at the side of the engagement metal fitting 29. After the body 20 is inserted into the panel mounting space 8 (FIG. 13 (a)), the engaging metal fitting 28 side is lifted and moved onto the upper horizontal piece 7b of the ceiling bar 7 (FIG. 13 (b)). The tool 28 is dropped and placed on the upper horizontal piece 7b (FIG. 13C). Here, the case where the equipment housing 20 is mounted adjacent to the ceiling panel 10 has been described, but the assembly procedure when the equipment housings 20 and 20 are mounted adjacent to each other is similar. However, when the equipment casings 20, 20 are adjacent to each other, as described above, the adjacent equipment casings 20
If the engaging metal fittings 28 and 29 are formed in a concavo-convex shape that engages with each other on the same plane, the equipment housings 20 and 20 can be arranged on the same plane.

Next, the case of removing the ceiling panel 10 and the equipment casing 20 will be described. When removing the mounted ceiling panel 10, as shown in FIGS. 14A to 14C, the ceiling panel 10 can be removed by a procedure reverse to the above-described mounting procedure. At this time, the middle ceiling panel 10
When removing, the outward flange 15 side of the adjacent ceiling panel 10 is pushed upward and is in a standby state, and the locked state of the inward flange 16 and the outward flange 15 of the ceiling panel 10 to be removed is set. Solve, ceiling panel 1
0 can be removed.

When the equipment casing 20 is removed, FIG.
As shown in (a) to (c), the ceiling panel 10 can be removed by a procedure reverse to the above mounting procedure. The case where the equipment casings 20 and 20 are adjacent to each other will be described as an example. First, the engaging metal fitting 28 side is lifted to release the engagement with the upper horizontal piece 7b of the ceiling bar 7, and then the opposing ceiling bar 7 is removed. It is possible to remove the engagement between the upper horizontal piece 7b and the engagement fitting 29, and tilt the engagement fitting 28 side downward to take out the equipment housing 20 to the indoor side.

In the above embodiment, the case where the ceiling panel 10 and the equipment housing 20 are rectangular has been described, but the shapes of the ceiling panel 10 and the equipment housing 20 are not necessarily rectangular, and the ceiling panel is not necessarily required. If 10 has an inward flange 16 and an outward flange 15 on two opposite sides, and the equipment housing 20 has engaging metal pieces 28, 29 on two opposite pieces, as shown in FIG. It may have a square shape. Note that, in FIG. 16, the other portions are the same as those in the above-described embodiment, and therefore, the same portions are denoted by the same reference numerals and the description thereof will be omitted.

[0036]

As described above, according to the system ceiling of the present invention, since it is configured as described above,
The following effects can be obtained.

1) According to the system ceiling of claim 1, the ceiling panel and the equipment housing on which the equipment is mounted are formed in the same plane shape, and the ceiling bar has a relationship between the ceiling panel and the equipment housing. A stopper is provided, and an engaging portion that removably engages with the locking portion of the ceiling bar is provided on each of opposite sides of the ceiling panel and the equipment housing, and the engaging portions of the adjacent ceiling panels are engaged with each other. Since it is detachably formed, the ceiling panel and the equipment can be arranged in a compatible manner. Further, since the ceiling panel and the equipment housing can be installed between the ceiling bars from the inside of the room, it is possible to easily change and arrange the equipment and repair work due to failure of the equipment or damage to the ceiling panel. The maintenance efficiency of the ceiling can be improved.

2) According to the system ceiling of claim 2, since the peripheral wall facing the outer wall surface of the ceiling panel is provided on the lower outer peripheral surface of the equipment housing, and the joint member is provided around the outer wall surface of the ceiling panel. The equipment housing and the ceiling panels and the ceiling panels can be aligned with each other by interposing the joint member between the equipment housing and the ceiling panels and between the ceiling panels, and the appearance of the ceiling finished surface can be improved. .

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a system ceiling of the present invention as seen from the back of the ceiling.

FIG. 2 is a schematic plan view of the system ceiling viewed from the back of the ceiling.

FIG. 3 is an exploded perspective view showing a main part of a system ceiling.

4 is a cross-sectional view taken along the line AA of FIG.

5 is a sectional view taken along line BB in FIG.

6 is a cross-sectional view taken along line CC of FIG.

FIG. 7 is a sectional view taken along line DD of FIG.

FIG. 8 is a side view showing a mounting state of the connecting metal fitting and the breath metal fitting in the present invention.

FIG. 9 is a perspective view showing a ceiling panel according to the present invention.

FIG. 10 is a perspective view showing an equipment housing and engagement fittings according to the present invention.

11A and 11B are a plan view and a side view showing a mounting state of adjacent portions of equipment casings.

FIG. 12 is an explanatory diagram showing a procedure for attaching the ceiling panel.

FIG. 13 is an explanatory diagram showing a procedure for attaching the equipment casing.

FIG. 14 is an explanatory diagram showing a procedure for removing the ceiling panel.

FIG. 15 is an explanatory diagram showing a procedure for removing the equipment case.

FIG. 16 is a perspective view seen from the back of the ceiling showing another embodiment of the system ceiling of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling slab 3 Suspension bolt 7 Ceiling bar 7b Upper horizontal piece (locking part) 7d Locking upright piece (locking part) 10 Ceiling panel 10a Packing (joint member) 12 Standing wall 15 Outward flange (engaging part) 16 Inward flange (engagement portion) 20 Equipment housing 21 Lighting equipment (equipment equipment) 27b Peripheral wall 28 Engagement fitting (engagement portion) 29 Engagement fitting (engagement portion)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location 7521-2E E04B 5/57 H

Claims (2)

[Claims] 1. A system ceiling in which a plurality of ceiling bars suspended by hanging bolts suspended from a ceiling slab are arranged in parallel with each other, and a ceiling panel and equipment are installed between the ceiling bars. The ceiling panel and the equipment housing for mounting the equipment are formed in the same plane shape, and the ceiling bar is provided with a locking portion for the ceiling panel and the equipment housing. On each opposite side of the body,
An engaging portion that removably engages with the locking portion of the ceiling bar is provided, and the engaging portions of adjacent ceiling panels are formed so as to be engageable with and disengageable from each other, thereby ensuring compatibility between the ceiling panel and the equipment housing. Along with
A system ceiling that can be attached and detached from the indoor side. 2. The equipment according to claim 1, wherein a peripheral wall facing the outer wall surface of the ceiling panel is provided on the lower outer peripheral surface of the equipment housing, and a joint member is provided around the outer wall surface of the ceiling panel. System ceiling.