JP3004982B1 - System ceiling - Google Patents

Abstract

A system ceiling formed by erection of a plurality of ceiling panels and equipment panels between a plurality of ceiling support members has a gap provided at a joint between adjacent ceiling panels. By using it as a return air return port, the air conditioning efficiency of the entire room can be improved, and the installation structure of the equipment panel and the suspension structure of the ceiling support material can be simplified. A ceiling panel (1) is composed of two types, a fixed panel (1F) and a movable panel (1M), and is arranged alternately, and a gap (18) having a fixed width is provided at an joint between adjacent fixed panels (1F) and a movable panel (1M). The gap 18 is used as a return port for return air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called system ceiling formed by mounting a ceiling panel and an equipment panel on a ceiling support member suspended from a ceiling slab.

[0002]

2. Description of the Related Art Along with the rise of buildings and the advancement of intelligence, system ceilings in which various types of equipment are incorporated in the ceiling and whose structure and construction process are rationalized have come to be used frequently. The basic structure is such that a plurality of ceiling support members such as so-called T-bars are arranged in parallel in the same plane via suspension means hanging from a ceiling slab, and various types of ceiling support members are provided between the ceiling support members. A plurality of equipment lines are formed by installing equipment panels in which equipment is integrated in advance, and a ceiling is formed by installing a ceiling panel between the equipment lines.

In this type of system ceiling, for example, as shown in FIG. 19, an equipment panel 2 is formed in a rectangular shape in plan view, and lighting equipment 20, a smoke detector 21, a sprinkler 22, a speaker (not shown), and the like are provided. Are generally arranged in series, and an air-conditioning outlet 91 and a return air return port 92 are provided along the long sides of both sides. Alternatively, as shown in FIG. 20, a configuration is also known in which two ceiling support members 3 on both sides of a facility line are juxtaposed and two slits between the ceiling support members 3 are used as an air-conditioning outlet 91 and a return port 92. Have been.

[0004]

However, in the system ceiling as described above, the air outlet 91 for air conditioning and the return port 92 for return air are both provided in the equipment panel 2 or in the vicinity thereof. The air circulation effect of air conditioning is concentrated around the equipment panel 2, making it difficult to uniformly circulate air throughout the room. The equipment panel 2 in which the outlet 91 and the recirculation port 92 are incorporated,
Because of its large size and weight, it tends to give a heavy impression when viewed from the room. In addition, ceiling support material 3
According to the configuration in which two of the ceiling support members 3 are arranged side by side on both sides of the equipment line, the suspension structure of the ceiling support member 3 is complicated, and the workability of the ceiling is deteriorated.

Accordingly, the present invention provides a new system ceiling in which a gap is provided at a joint between adjacent ceiling panels and the gap is used as a return air return port, thereby providing a new system ceiling. The purpose is to improve the air-conditioning efficiency and to improve the workability by simplifying the installation structure of the equipment panel and the suspension structure of the ceiling support material.

[0006]

According to the first aspect of the present invention, there is provided a system ceiling, wherein a plurality of ceiling panels are provided between a plurality of ceiling supports arranged in parallel by means of suspension from a ceiling slab. And a system ceiling formed by installing equipment panels, the ceiling panel is composed of two types, a fixed panel and a movable panel, and the fixed panel and the movable panel are alternately arranged along the extending direction of the ceiling support member. In addition, a gap having a fixed width is provided at the joint between the adjacent fixed panel and movable panel, and this gap is used as a return port for return air.

[0007] Return air is air that returns from an air-conditioned room to an air conditioner again. By allowing this return air to flow out of the ceiling from the gap provided at the joint between the ceiling panels, the air circulation throughout the room is uniformed, air conditioning efficiency is improved, and the equipment panels are downsized and the ceiling is supported. The material suspension structure can be simplified. Thereby, the workability of the ceiling is improved, and the appearance of the ceiling can be made clear and light. In addition, by forming the ceiling panel from two types, the fixed panel and the movable panel, it is possible to provide a gap between joints in a structurally stable state over the entire ceiling.

[0008] The system ceiling according to claim 2 is
The movable panel has a side wall that is raised up to a position higher than a top edge of a side edge of the adjacent fixed panel at a side edge adjacent to the fixed panel at the time of erection, and is adjacent to an upper edge of the side wall plate. And a horizontal plate which is provided on the side of the fixed panel and is provided with a gap of a certain height above the gap so as to cover the gap.

That is, since the horizontal plate of the movable panel covers the gap provided at the joint between the ceiling panels, even when the joint is looked up from the room, the ceiling can be seen through the gap. And a better aesthetic appearance can be obtained.

[0010] The system ceiling according to claim 3 is:
Joint spacers for keeping the gap between the joints at a constant width are sandwiched between joints between the adjacent fixed panel and the movable panel, and the width of the gap between the joints is fixed by the joint spacer. And the workability of the ceiling panel is improved, and the erection state of the ceiling panel is more stable.

Further, the system ceiling according to claim 4 is:
While being attached to the ceiling support, the downwardly extending slip stoppers are engaged with the edges of the fixed panel to restrain the fixed panel from shifting laterally, and the panel pressing strips are extended laterally. Presses the upper surface of the edge of the fixed panel to stop the floating of the fixed panel, and the fixed panel is fixed to the ceiling support via a panel fixing bracket, and the panel fixed By using the metal fittings, the fixing panel can be easily and reliably fixed to the ceiling support member, and the erection state of the fixing panel is further stabilized.

Further, the system ceiling according to claim 5 is:
On the side of the wall parallel to the direction in which the ceiling support extends, the ceiling panel is erected between the surrounding edge attached to the wall and the ceiling support positioned closest to the wall,
A reinforcing channel parallel to the ceiling support is arranged at an upper portion between the surrounding edge and the ceiling support, and a fall prevention hanger is locked to the reinforcement channel, and a lower portion of the fall prevention hanger is adjacent to the reinforcement channel. The ceiling panel beside the wall is suspended by the reinforcing channel by engaging with the joint portion of the ceiling panel.

As a result, even when a horizontal force due to an earthquake or the like acts on the building and a large interlayer displacement occurs between the ceiling slab and the system ceiling, the ceiling panel is prevented from falling off near the wall.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall configuration of the system ceiling of the present invention. In this system ceiling, a ceiling support 3 for erection of the ceiling panel 1 and the equipment panel 2
Are suspended bolts 41 suspended with anchors (not shown) or the like buried in the ceiling slab;
Hook-shaped adjusting hanger 4 attached to the lower end of 1
2, a ridge receiver 43 erected horizontally by the adjusting hanger 42, a brace member 44 for suspending and suspending the suspension bolts 41 and the ridge receiver 43 in an oblique direction, and attached to the ridge receiver 43. A channel clip 45,
Is suspended by suspending means consisting of:

The rim receiving member 43 is a member made of a lightweight section steel having a groove shape in section or a groove shape with a lip. As shown in FIG.
A plurality of suspension bolts 41 are arranged in parallel so as to be fitted into adjustment hangers 42 attached to lower ends of the suspension bolts 41 via fixing nuts 46.

The ceiling support 3 is a so-called T-bar, a member made of steel or an aluminum alloy and formed in an inverted T-shaped cross section. The ceiling support member 3 includes an upright portion 31 that stands upright along the longitudinal direction of the member, a flange portion 32 that protrudes from the lower edge of the upright portion 31 to both sides, and a substantially rectangular cross-section formed at the upper edge of the upright portion 31. And is suspended from the lower end of a channel clip 45 attached so as to straddle the rim receiver 43 so that the head 33 is sandwiched therebetween. The ceiling support 3 is the equipment panel 2
Are provided in a direction orthogonal to the ridge receiver 43 so that a narrow space portion for erection and a wide space portion for erection of the ceiling panel 1 are alternately provided.

As shown in FIG. 3, the equipment panel 2 includes a lighting equipment panel 2L and several other types of equipment equipment panels 2E.
These are arranged so as to be alternately arranged in the narrow portion of the space between the ceiling support members 3 to form a facility line. Disaster prevention devices such as a smoke detector 21 and a sprinkler 22, speakers, an air outlet 23 for air conditioning, and the like are attached to the other equipment panel 2E, and wiring and piping for those equipment are connected. . These equipment panels 2 are unified in dimension in the width direction according to the portion where the spacing between the ceiling support members 3 is narrow, and as shown in FIG. Is mounted on the flange portion 32 of the above.

The ceiling panel 1 has a substantially rectangular planar shape.
Types of ceiling panels, ie, fixed panel 1F shown in FIG.
And a movable panel 1M shown in FIG. Each of these is installed on a portion of the ceiling support member 3 where the interval between the ceiling support members 3 is wide, with both short-side edges placed on the flange portion 32 of the ceiling support member 3. At this time, the fixed panels 1F and the movable panels 1M are arranged alternately one by one along the direction in which the ceiling support members 3 extend.

The fixed panel 1F and the movable panel 1M are
In each case, the surface is formed by a ceiling plate 12 made of a rust-proof treated steel plate having a number of small holes 11 punched out. Material 13 is overlaid. The outer edges of the four circumferences of the ceiling plate 12 are bent upward and raised, and the side walls 14 (14a, 14b, 14c) are formed on the four circumferences.
Are formed.

In the fixed panel 1F, as shown in FIG. 5, the upper edges of the four side walls 14a, 14b are bent inward to form horizontal plates 15a, 15b, and these horizontal plates 15a, 15b are formed. , 15b cover the periphery of the heat insulating / sound absorbing material 13. However, the side wall plate 14a on the long side of the fixed panel 1F is raised to a position higher than the side wall plate 14b on the short side, so that the horizontal plate 15a on the long side is slightly higher than the horizontal plate 15b on the short side. It is formed at a high position. In the vicinity of the middle of the horizontal plate 15b on the short side, a shift stopper 61 of the panel fixing bracket 6 described later.
4 (see FIG. 11) are formed with three cutouts 16 each for engagement. Furthermore, the long side wall plate 14a
Each of the two end portions has an elongated slot 17 for inserting and engaging a panel engaging piece 53 (see FIG. 8) of the joint spacer 5 described later.

On the other hand, in the movable panel 1M, as shown in FIG. 6, a horizontal plate 15b which is bent inward like the fixed panel 1F is formed at the upper edge of the short side wall plate 14b. On the other hand, on the upper edge of the side wall plate 14c on the long side,
A horizontal plate 15c is formed so as to be bent outward. Then, the side wall plate 1 on the long side of the movable panel 1M
By setting the rising height of the movable panel 4c higher than the long side wall 14a of the fixed panel 1F, the movable panel 1
The position of the horizontal plate 15c projecting outward from the long side of M is
The fixed panel 1F is formed so as to be higher than the horizontal plate 15a on the long side. The rising height of the side wall plate 14c on the long side of the movable panel 1M is set to be slightly smaller than the height of the upright portion 31 of the ceiling support member 3.

As shown in FIG. 7, these ceiling panels 1 (fixed panel 1F and movable panel 1M) are installed with a fixed width gap 18x provided at the joint between adjacent ceiling panels 1. . Then, in this state, the horizontal plate 15c extending outward from the long side of the movable panel 1M.
Covers the horizontal plate 15a bent inward on the long side of the fixed panel 1F.
A gap 18y having a constant width in the vertical direction is also formed between 5c. Thereby, a space having a substantially L-shaped cross section through which air can flow is formed between the adjacent fixed panel 1F and movable panel 1M.

In the present invention, the gap 18 (18x and 18y) between the fixed panel 1F and the movable panel 1M thus formed is used as a return port for returning indoor air to the air conditioner during air conditioning. Is what you do. That is, at the time of air conditioning, air whose temperature and humidity have been adjusted by the air conditioner is supplied through an air supply duct (not shown) disposed behind the ceiling, and the air outlet 23 provided in the equipment panel 2 is provided.
And blow out into the room. Then, the air circulated in the room flows out through the gap 18 formed between the ceiling panels 1 to the back of the ceiling in a negative pressure state, and returns to the air conditioner again from the back of the ceiling.

According to the system ceiling of the present invention configured as described above, the gap 18 serving as the return air return port is
Because it is formed between the ceiling panels 1 over the entire ceiling,
The air circulation throughout the room is made uniform, and the air conditioning efficiency is greatly improved. Also, as in the conventional case, the equipment panel 2
A return port 92 or two ceiling supports 3
It is not necessary to provide a slit for the return port 92 by juxtaposing and juxtaposing, so that the equipment panel 2 can be downsized and the structure for hanging the ceiling support 3 can be simplified. As a result, the workability of the ceiling is improved, and the appearance of the ceiling can be made to have a clear and light impression.

Further, since the gap 18 between the ceiling panels 1 is formed over the entire ceiling, a sufficient amount of air can be circulated from the entire ceiling without increasing the width of each gap 18. . Therefore, the width of the gap 18 can be reduced to improve the appearance of the joint portion of the ceiling panel 1. Moreover, in the present invention, the movable panel 1M
Since the horizontal plate 15c projecting outward from the long side is covered above the gap 18, even when the ceiling is looked up from the room, the ceiling is not seen through the gap 18 at the joint portion. Good aesthetics can be obtained.

In the present invention, it is preferable to provide a gap 18 between all adjacent ceiling panels 1 from the viewpoint of air-conditioning efficiency. However, depending on the structure of the building, the shape of the ceiling, facilities and other design conditions, etc. Alternatively, the side walls 14a, 14c on the long side of the adjacent ceiling panel 1 may partially contact.

When the above-mentioned ceiling panel 1 (fixed panel 1F and movable panel 1M) is erected on the ceiling support member 3, the following auxiliary parts are used.

First, in order to keep the width of the gap 18 formed between the fixed panel 1F and the movable panel 1M constant, a joint spacer 5 as shown in FIG.
Is attached.

The joint spacer 5 is a part formed by punching a thin steel plate and forming a bend. The joint spacer 5 has a vertically long front plate 51 formed to have a horizontal width corresponding to the width of the gap 18x. A pair of side plates 52 extending rearward so as to be orthogonal to the face plate 51. Front panel 5
1 and the height of the side plate 52 are set substantially equal to the rising height of the side wall plate 14c on the long side of the movable panel 1M. On one of the pair of side plates 52, two panel engaging pieces 53 projecting outward from the vicinity of the rear edge so as to be orthogonal to the side plates 52 are formed.

Two types of left and right symmetrical joint spacers 5 are prepared in which panel engaging pieces 53 are formed so as to protrude from side plates 52 opposite to each other. And
Joint spacers 5 each of which is a set of one type are applied to both ends of the side wall plate 14a on the long side of the fixed panel 1F in a posture in which the front plates 51 are opposed to each other. The panel engaging pieces 53 are inserted into the slots 17 formed at both ends of the fixing panel 1F, respectively, and attached to the fixed panel 1F. At the center portion of each panel engaging piece 53, a claw piece 54 cut and raised in a direction opposite to the projecting direction of the panel engaging piece 53 is provided. In this case, the panel engaging piece 53 is prevented from coming out of the slot 17.

FIG. 9 shows a state in which the joint panel spacer 5 is sandwiched between the fixed panel 1F and the movable panel 1M on the flange 32 of the ceiling support member 3, and the horizontal plate 15c on the long side of the movable panel 1M is shown. FIG. 10 is a cross-sectional view at a slightly lower position, and FIG. 10 shows a state similar to FIG. 9 by a vertical cross-sectional view orthogonal to the length direction of the gap 18 between the ceiling panels 1. FIG. 3 is a view as seen from a gap 18 side. The horizontal width of the gap 18x is kept constant by the width of the front plate 51 of the joint spacer 5 attached to the fixed panel 1F. At the same time, the horizontal plate 15c projecting outward from the long side of the movable panel 1M is supported by the front plate 51 and the side plate 52 of the joint spacer 5, and the horizontal plate 15c on the long side of the movable panel 1M and the fixed panel 1F are supported. The vertical gap 18y with the horizontal plate 15a on the long side is also maintained at a constant width.

When looking up at the joint between the ceiling panels 1 from inside the room, the front plates 51 of the joint spacers 5 can be seen at both corners of the gap 18, so that the surface of the front plate 51 is decoratively finished. Is preferred.

In order to securely fix the fixing panel 1F mounted on the flange portion 32 of the ceiling support member 3 to the ceiling support member 3, a panel fixing bracket 6 as shown in FIGS. 11 to 14 is used. .

The panel fixing bracket 6 is a fixing panel 1F
Anti-shift metal fitting 61 for preventing horizontal displacement of the
And a panel holding metal member 62 for preventing the fixed panel 1F from rising upward or jumping up. The lateral displacement preventing metal member 61 and the panel holding metal member 62 are
It is rotatably connected by a connecting pin 63.

The lateral displacement prevention metal fitting 61 is a clip-shaped metal fitting formed by bending a stainless steel plate, and a pair of connecting plates 611 that stand upright at an interval are continuously formed in a U-shaped cross section at the top. At the same time, a pair of holding plates 612 are provided below each connecting plate 611 so as to be able to hold the head 33 of the ceiling support member 3 from both sides.

Each of the holding plates 612 is bent with respect to the head 33 of the ceiling support member 3 having a substantially rectangular cross section so as to be in contact with both shoulders thereof, and has a lower edge directed inward and obliquely upward. A claw piece 613 folded back is formed.
Then, as shown in FIG. 13, the tip of the claw piece 613 is attached to the “chin” portion of the head 33 of the ceiling support member 3,
That is, the ceiling support member 3 is sandwiched so that the head 33 and the upright portion 31 are engaged with the continuous corners. The opposing holding plate 612 is urged inward by the bending elasticity of the top of the connecting plate 611, and can be easily put on the head 33 of the ceiling support member 3, while once put on, the claw piece Are engaged with the chin of the head 33 so as not to come off easily.

On one side of the holding plate 612, there is provided a shift stopper 614 formed by extending a side edge of the holding plate 612 in the extending direction of the ceiling support member 3, and further extending downward and hanging down. Then, the shift stopper 614 is inserted from above into the notch 16 formed in the horizontal plate 15b on the short side of the fixed panel 1F. In this manner, the fixed panel 1F is fixed on the flange portion 32 with the short side wall plate 14b along the upright portion 31 of the ceiling support member 3, and is fixed in the horizontal direction, particularly, in the extending direction of the ceiling support member 3. Is held so as not to be shifted with respect to.

Depending on the installation position of the fixing panel 1F, the wiring and piping for the equipment, the channel clip 45 for suspending the ceiling support 3 and the brace member 44 may interfere with the vicinity of the mounting position of the panel fixing bracket 6. Therefore, three notches 16 are provided in the horizontal plate 15b on the short side of the fixed panel 1F in order to prepare for this, and the panel fixing bracket 6 is placed at any position of the three notches 16. It is made so that it can be attached.

The connecting plate 611 is provided with a circular hole 615 that penetrates the position near the upper part in the horizontal direction, and the connecting pin 63 inserted into the circular hole 615 allows the arm of the panel holding member 62 to be described later. The part 621 is connected.

The panel holding member 62 is a metal member formed by bending a steel plate. The steel plate is folded to form a substantially triangular or trapezoidal arm portion 621 in a side view. A downwardly open fitting portion 622 having a U-shaped cross section is formed continuously at a part of the edge, and a panel pressing piece 623 that projects outward from a lower edge of one of the fitting portions 622 is provided on one of the fitting portions 622. Is formed.

The arm portion 621 is provided with a round hole 624 that penetrates one end near the upper portion in the horizontal direction. Then, the arm portion 621 is connected to the lateral displacement prevention metal fitting 61.
Between the two connecting plates 611 of each other, the round holes 615,
By overlapping 624 and connecting them with the connecting pins 63, the lateral displacement prevention metal fitting 61 and the panel holding metal fitting 62 are rotatably connected to each other.

The fitting portion 622 includes the head 3 of the ceiling support 3.
A pair of hanging plates 625 facing each other with an interval corresponding to the width dimension of No. 3 are provided. The lower edge of one of the hanging plates 625 is slightly folded outward so as to be easily fitted to the head 33 of the ceiling support 3. Also, the lower edge of the other hanging plate 625 extends slightly downward, and near the center thereof, a claw piece 62 cut and raised inward and upward.
6 are provided. Then, as shown in FIG. 14, when the fitting portion 622 is fitted to the head 33 at the time of ceiling support from above, the claw piece 622 engages with the chin of the head 33 and becomes “return”, It does not come off from the ceiling support 3.

The panel pressing piece 623 is formed so as to horizontally protrude outward from one lower edge of the fitting portion 622 and then to incline its tip obliquely downward. Further, a cushioning member 627 made of synthetic rubber or the like is attached to the lower surface of the panel pressing piece 623. And the fitting part 6
The panel pressing piece 623 is attached to the head 33 of the ceiling support 3 with the panel pressing piece 623 mounted on the flange 32 of the ceiling support 3, and the horizontal plate 15 b on the short side of the fixed panel 1 </ b> F.
Is pressed downward via the cushioning material 627. Here, the tip of the panel pressing piece 623 is inclined downward in order to more effectively prevent the fixed panel 1F from shifting in the direction away from the ceiling support member 3.

The lower edge of the arm 621 is provided with a substantially semicircular projection 628 in side view. This projection 62
Reference numeral 8 designates the horizontal displacement prevention metal fitting 61 with the head 3 of the ceiling support 3.
3, the dimension from the connecting pin 63 to the tip of the projection 628 is slightly larger than the dimension from the connecting pin 63 to the upper surface of the head 33 of the ceiling support 3. When the fitting portion 622 of the panel holding member 62 is fitted to the head 33 of the ceiling support member 3,
It is provided at a position farther than a position immediately below the connection pin 63 when viewed from the fitting portion 622. Therefore, first, the lateral displacement prevention metal fitting 61 is sandwiched with respect to the ceiling support member 3,
Next, when the panel holding member 62 is rotated and fitted to the ceiling support member 3, the protrusion 628 of the arm portion 621 presses the upper surface of the head portion 33 of the ceiling support member 3 as a lever action point, and the lateral displacement prevention member is used. 61 is slightly lifted upward to be more firmly fixed to the ceiling support 3, and the panel holding member 62 once fitted to the ceiling support 3 is
This prevents rotation in a direction deviating from the position.

In this manner, the fixed panel 1F mounted on the flange portion 32 of the ceiling support member 3 is shifted mainly in the length direction of the ceiling support member 3 by the shift stopper 614 of the lateral shift prevention metal fitting 61. And is prevented from rising upward by the panel pressing piece 623 of the panel holding member 62, and is prevented from moving away from the ceiling support 3 by the inclined tip of the panel pressing piece 623. You. Thereby, the fixed panel 1F is securely fixed on the flange portion 32 of the ceiling support member 3, and is stably held between the ceiling support members 3.

The system ceiling thus constructed is composed of a ridge receiver 43 suspended by suspension bolts 41 and brace members 44, and a ceiling support 3 erected orthogonally to the ridge receiver 43. The fixed panel 1F and the movable panel 1M are alternately mounted between the ceiling support members 3 so that the fixed panel 1F is fixed to the ceiling support member 3, so that the ceiling As a whole, the ceiling has a stable structure with little deformation in the horizontal direction. Therefore, even when the building is deformed due to an earthquake, a strong wind, or the like, there is almost no risk that the fixed panel 1F will fall off the ceiling support member 3 unless the deformation is an extreme one far exceeding a normal expectation.

For the movable panel 1M, the ceiling support 3
And is fixed to the ceiling support 3 only with the joint spacers 5 interposed between it and the fixed panels 1F located on both sides. Therefore, when the movable panel 1M is lifted from below, any of the movable panels 1M rises upward. However, the movable panel 1M according to the present invention has a horizontal plate 15c that protrudes outward from the upper edge of the side wall plate 14c on the long side, and the horizontal plate 15c is located on the long side of the fixed panel 1F. It is installed so as to cover above the horizontal plate 15a bent inward. Therefore, the movable panel 1M
18 at the joint between the two fixed panels 1F
The maximum width between both long sides of the movable panel 1M is slightly larger than the interval including the above, so that the movable panel 1M also does not easily fall off from between the two fixed panels 1F.

As described above, the ceiling is constituted by the two types of ceiling panels 1 of the fixed panel 1F and the movable panel 1M, and only about half of the ceiling panels 1 (fixed panels 1F) are fixed to the ceiling support member 3. Thus, a ceiling having a stable structure can be obtained. For this reason, the labor required for fixing the ceiling panel 1 is greatly reduced as compared with the related art, and the workability of the ceiling work is also improved.

Furthermore, since about half of the ceiling panel 1 constituting the ceiling is a movable panel 1M that can be lifted, any movable panel 1M can be used as an inspection port behind the ceiling even after the ceiling is constructed. It becomes possible. Conventionally, it is necessary to provide hatches for openings at multiple locations in advance to check the inside of the ceiling in preparation for maintenance and repair of equipment, etc. According to the present invention, since all movable panels 1M can be used as inspection ports, the cost of parts for installing the inspection ports and the cost of installation work can be greatly reduced. can do.

As described above, this system ceiling is composed of a horizontal girder-shaped horizontal surface composed of the edge support 43 and the ceiling support member 3 and the fixed panel 1F that is erected and fixed between the ceiling support members 3. Because of this, the ceiling itself has a small deformation and a stable structure. However, in the case where a large interlayer displacement occurs between the ceiling slab and the horizontal construction surface due to, for example, severe seismic force or the like, as described below, there is a possibility that the ceiling panel 1 may fall off particularly at the wall portion of the ceiling. Is left. Therefore, a structure for reinforcing the system ceiling at the side of the wall to prevent this will be described below.

As shown in FIG. 15, a peripheral edge 7 having a substantially L-shaped cross section is attached to a portion where the ceiling and the wall are in contact with each other. The surrounding edge 7 has a flange portion 71 projecting horizontally from a lower edge thereof, and a fixing portion 72 formed to project laterally is fixed to a wall finishing material or a base material with screws or the like. ing. The surrounding edge 7 is joined to the ceiling support 3 in a T-shape in plan view at a wall near the side orthogonal to the direction in which the ceiling support 3 extends.
The flange portions 32 and 71 are fixed to the same height via a dedicated joiner 74 as shown in FIG.

At the side of the wall of the ceiling support member 3 perpendicular to the extending direction, one of the long side edges of the ceiling panel 1 is mounted on the flange portion 32 of the surrounding edge 7, and The side edges are mounted on the flange portions 32 of the ceiling support member 3 which are parallel to each other. That is, the ceiling panel 1 is supported by the three edges. At this time, since the parallel ceiling support members 3 are held at a constant distance from each other by the field margin receivers 43 orthogonal to the ceiling support members 3, the ceiling panel 1 does not easily fall off near the wall on this side. ing.

On the other hand, near the wall parallel to the direction in which the ceiling support member 3 extends, one of the short side edges of the ceiling panel 1 is mounted on the flange portion 71 of the surrounding edge 7, and the other is mounted on the flange portion 71. The ceiling panel 1 is mounted on the flange portion 32 of the ceiling support member 3 arranged closest to the wall, and the ceiling panel 1 is supported at two opposite edges. However, there is no member between the ceiling support member 3 and the surrounding edge 7 for maintaining a constant distance between the ceiling support member 3 and the surrounding edge 7, so that the ceiling support member 3 receives the horizontal force due to an earthquake or the like. When the distance between the surrounding edge 7 is increased, the ceiling panel 1 near the wall may fall off from between the ceiling support member 3 and the surrounding edge 7.

Therefore, as shown in FIG. 15, a reinforcing channel 47 is bridged over the ridge receiver 43 holding the ceiling support member 3 so as to be orthogonal to the ridge receiver 43. The ceiling panel 1 is suspended by the use channel 47. The reinforcing channel 47 is a member made of, for example, a channel steel or a channel steel with a lip having the same shape as the field receiver 43, and is placed on the top end of the field receiver 43 and fixed to the field receiver 43. I have. The two reinforcing channels 47 are arranged in parallel at a position where the distance between the ceiling support member 3 arranged closest to the wall and the surrounding edge 7 is approximately equally divided into three. Then, a fall prevention hanger 8 as shown in FIG. 17 is engaged with the reinforcing channel 47, and the fall prevention hanger 8 allows the adjacent fixed panel 1F
In addition, the edge of the joint portion of the movable panel 1M is suspended.

The fall prevention hanger 8 is a vertically long part made of a thin steel plate, and includes a substantially rectangular upright portion 81 and an upright portion 81.
A horizontal portion 82 extending horizontally from the upper end of the
1 is cut into the side edges near the middle of
And a pair of claw pieces 83 bent to the same side as the overhang direction.

At the center in the width direction of the horizontal portion 82, a rectangular notch 84 opening toward the tip is formed. The notch 84 divides the tip of the horizontal portion 82 into two horizontal pieces. 85 are formed. The vertical distance between the horizontal portion 82 and the claw piece 83 is the same as the reinforcing channel 4.
7 is set equal to the height dimension.

At the lower part of the upright portion 81, there is formed a vertically long cutout portion 86 which opens downward. The cutout portion 86 divides the lower end of the upright portion 81 to form two hanging pieces. . Then, one of the hanging pieces is bent from the vicinity of the base end to the same side as the direction in which the horizontal portion 82 extends,
A retaining piece 87 is formed. The other hanging piece is formed as a horizontal plate supporting piece 89 by cutting two narrow grooves 88a and 88c in a groove shape from one edge of the notch 86 in the horizontal direction.

Notch 86 formed below lower portion 81
The width of each of the side walls 14a on the long side of the fixed panel 1F and the movable panel 1M, which are provided with a gap 18 therebetween.
14c are formed in such a size that two sheets 14c can be sandwiched together. The two narrow grooves 88a, 88c formed on the horizontal plate support piece 89 are respectively provided on the long sides of the fixed panel 1F and the movable panel 1M.
It is formed so as to correspond to the cross-sectional shape of c.

When attaching the fall prevention hanger 8 to the fixed panel 1F and the movable panel 1M provided between the surrounding edge 7 and the ceiling support member 3, as shown in FIG. , 15c, insert the horizontal plate support piece 89 of the fall prevention hanger 8 from the tip side in the projecting direction,
Each horizontal plate 15 of the fixed panel 1F and the movable panel 1M
a and 15c are respectively engaged with the two narrow grooves 88a and 88c, and then the retaining piece 87 which has been bent in the horizontal direction is used.
Is extended vertically again. Thereby, the lower part of the fall prevention hanger 8 is fixed to the fixed panel 1F and the movable panel 1M.
Is engaged so as not to come off with respect to the joint part. The horizontal portion 82 formed on the upper part of the fall prevention hanger 8
The reinforcing channel 47 is sandwiched between the hook and the claw piece 83, and the horizontal piece 85 at the end of the horizontal portion 82 is folded downward to be locked to the reinforcing channel 47. In this manner, the ceiling panel 1 near the wall is suspended from the reinforcing channel 47 via the fall prevention hanger 8.

The fall prevention hanger 8 is connected to the fixed panel 1F and the movable panel 1M along two reinforcing channels 47 arranged at a position where the distance between the ceiling support member 3 and the surrounding edge 7 is substantially equally divided into three. Each of the two joints is attached to each joint between them. Therefore, the gap between the ceiling support 3 and the surrounding edge 7 is widened due to an earthquake or the like, and one or both of the short side edges of the ceiling panel 1 is placed on the flange 32, 71 of the ceiling support 3 or the surrounding edge 7. Even if the ceiling panel 1 falls off, the ceiling panel 1 can be
7 to prevent falling off.

Next, the procedure for installing the system ceiling of the present invention will be described. First, a field edge receiver 43 is attached to a lower end portion of a suspension bolt 41 suspended from a ceiling slab via an adjustment hanger 42, and a brace member 44 is arranged to suspend the field edge receiver 43. The member 44 is adjusted to hold the rim receiver 43 horizontally. A channel clip 45 is attached to the edge support 43 and the ceiling support 3 is hung, and the position and interval of each ceiling support 3 are adjusted to predetermined design positions.

At the side of the wall, the surrounding edge 7 is attached to the ceiling support 3 at the same height, and further, at the side of the wall parallel to the direction in which the ceiling support 3 extends, reinforcement is provided on the field support 43. Channel 47 is installed.

Here, one or more reference lines for panel arrangement are set. This reference line is set in a direction perpendicular to the ceiling support member 3 in consideration of the layout of the ceiling panel 1 over the entire ceiling. Starting from this reference line, the equipment panels 2 are erected in order, and piping and wiring are connected to each equipment panel 2 to complete the equipment line.

Next, one fixing panel 1F is erected between each ceiling support member 3 along the reference line, and is fixed to each ceiling support member 3 by the panel fixing bracket 6. Then, the movable panels 1M and the fixed panels 1F are alternately erected between the ceiling support members 3 sequentially adjacent to the fixed panels 1F fixed first. At this time, the joint spacers 5 are attached to each fixed panel 1F at the time of erection, so that the gaps 18 between the joints are uniformly aligned. Also,
Each of the erected fixing panels 1F is fixed to the ceiling support member 3 using the panel fixing bracket 6 each time. In addition, the reference line is set at two or more positions, and the width of the gap 18 of the joint portion is adjusted in a section sandwiched between the reference lines to absorb a small error generated when the ceiling panel 1 is erected. It is also possible.

Similarly, near the wall, the fixed panel 1F is placed between the ceiling support 3 and the surrounding edge 7 with the reference line as a starting point.
And the movable panel 1M are sequentially installed. Then, the fixed panel 1F is fixed to the ceiling support member 3 using the panel fixing bracket 6, and the joint portions of the fixed panel 1F and the movable panel 1M are hung by the reinforcing channel 47 using the fall prevention hanger 8.

By such a procedure, the system ceiling of the present invention can be efficiently constructed.

In the above-described embodiment, the ceiling plate 12 constituting the surface of the ceiling panel 1 is made of a rust-proof steel plate having a number of small holes 11 punched out. The material and processing form of the plate 12 are not necessarily limited to this, and for example, an aluminum alloy or resin may be used and various undulations may be formed on the surface thereof. Also, as for the heat insulating / sound absorbing material 13 that is superposed on the upper surface of the ceiling plate 12, it is possible to use another heat insulating / sound absorbing material instead of the glass wool.

Further, the shape of the ceiling support member 3 for erection of the ceiling panel 1 and the equipment panel 2 is not limited to that described in the above embodiment, but may be any other shape than the ceiling panel 1 or the like. May be a member having the following cross-sectional shape. The same applies to the surrounding edge 7. Of course, when the cross-sectional shape of the ceiling support member 3 is different, the shapes of the holding plate 612 and the fitting portion 622 of the panel fixing bracket 6 attached to the ceiling support member 3 also change correspondingly.

[0070]

According to the present invention, a gap having a fixed width is provided at the joint portion of the adjacent ceiling panel, and this gap is used as a return air return port, so that the return air can flow out from the entire ceiling. Can be. Therefore, the air circulation in the entire room can be made uniform and the air conditioning efficiency can be improved, and the installation structure of the equipment panel and the suspension structure of the ceiling support material can be simplified to improve the workability of the ceiling. Will be possible.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a system ceiling according to the present invention.

FIG. 2 is a partial perspective view showing a suspended state of a field support and a ceiling support member on the system ceiling.

FIG. 3 is a top view of the vicinity of the equipment line on the system ceiling.

FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, showing a state where the equipment panel and the ceiling panel are installed on a ceiling support member.

FIG. 5 is a perspective view showing the structure of the fixed panel, partially cut away.

FIG. 6 is a perspective view showing the structure of the movable panel, partially broken away.

FIG. 7 is a cross-sectional view taken along the line BB in FIG. 3, showing a state where a ceiling panel (fixed panel and movable panel) is erected.

FIG. 8 is a perspective view showing a configuration of a joint spacer.

FIG. 9 is a partial cross-sectional view of a state where the joint panel is mounted on a flange portion of a ceiling support member with a joint spacer interposed between a fixed panel and a movable panel, as viewed from above.

FIG. 10 is a partial longitudinal sectional view of the state shown in FIG. 9 as viewed from the side.

FIG. 11 is a perspective view showing a configuration of a panel fixing bracket.

FIG. 12 is a front view of a panel fixing bracket.

FIG. 13 is a side view showing a state in which a lateral displacement prevention metal fitting constituting the panel fixing metal is held between ceiling support members.

FIG. 14 is a side view showing a state in which a panel holding member constituting the panel fixing member is held between ceiling support members.

FIG. 15 is a longitudinal sectional view showing a state where a ceiling panel is erected near a wall.

FIG. 16 is a partial perspective view showing a joint state between a peripheral edge and a ceiling support member.

FIG. 17 is a perspective view showing a configuration of a fall prevention hanger.

FIG. 18 is a partial perspective view showing a use state of the fall prevention hanger.

FIG. 19 is a top view illustrating a configuration example of a facility panel on a conventional system ceiling.

FIG. 20 is a schematic partial cross-sectional view showing a configuration example of an air-conditioning outlet and a return port in a conventional system ceiling.

[Explanation of symbols]

 1 (1F, 1M) Ceiling panel 1F Fixed panel 1M Movable panel 18 Gap 14a, 14b, 14c Side wall plate 15a, 15b, 15c Horizontal plate 2 (2L, 2E) Equipment panel 3 Ceiling support material 47 Reinforcement channel 5 Joint spacer 6 Panel fixing bracket 61 Horizontal displacement prevention bracket 614 Displacement stopper 62 Panel holding bracket 623 Panel pressing piece 7 Surrounding edge 8 Fall prevention hanger

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ identification code FI E04B 5/57 B (58) Investigated field (Int.Cl. ⁷ , DB name) E04B 9/02 E04B 1/70 E04B 9 / 00 E04B 9/24 F24F 13/068

Claims (5)

(57) [Claims] 1. A system ceiling formed by arranging a plurality of ceiling panels and equipment panels between a plurality of ceiling support members arranged in parallel by means of suspending from a ceiling slab. The fixed panel and the movable panel are arranged alternately along the direction in which the ceiling support extends, and the joint between the fixed panel and the movable panel has a fixed width. Wherein the gap is used as a return port for return air. 2. The movable panel has a side wall that is raised to a position higher than a top end of a side edge of the adjacent fixed panel at a side edge adjacent to the fixed panel when the movable panel is erected. The system ceiling according to claim 1, further comprising a horizontal plate that protrudes from an upper edge to a side of the adjacent fixed panel and covers a gap having a certain height above the gap. 3. The joint according to claim 1, wherein a joint spacer for holding a gap between the joints at a fixed width is sandwiched between joints between adjacent fixed panels and movable panels. System ceiling. 4. In a state of being attached to the ceiling support member, a downwardly extending slip stopper is engaged with an edge of the fixed panel to restrain a lateral shift of the fixed panel, and extends laterally. The fixed panel is fixed to the ceiling support member through a panel fixing bracket configured to press the upper surface of the edge of the fixed panel by pressing the upper surface of the fixed panel to prevent the fixed panel from floating. The system ceiling according to any one of claims 1 to 3, wherein: 5. A ceiling panel is provided between a peripheral edge attached to the wall and a ceiling support member disposed closest to the wall, near the wall parallel to the direction in which the ceiling support member extends. On the other hand, a reinforcing channel parallel to the ceiling support is arranged at an upper portion between the surrounding edge and the ceiling support,
By locking the fall prevention hanger to the reinforcement channel and engaging the lower part of the fall prevention hanger with the joint portion of the adjacent ceiling panel, the ceiling panel beside the wall was suspended by the reinforcement channel. The system ceiling according to any one of claims 1 to 4, wherein: