JP3166045B2 - Ceiling structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling structure, and more particularly to a ceiling structure suspended between suspension bars attached to suspension bolts suspended from a ceiling slab.
For example, the present invention relates to improvement of a ceiling structure in which equipment such as lighting equipment and speakers are provided and a ceiling panel is installed.

[0002]

2. Description of the Related Art Generally, as a ceiling structure of this type, a ceiling bar is suspended orthogonally through a ceiling metal on a ceiling base material supported by hanging bolts suspended from a ceiling slab. For example, there is known a structure in which equipment such as lighting equipment and air conditioning equipment is incorporated (Japanese Patent Laid-Open No. 62-78).
No. 338). However, since this ceiling structure is a two-stage structure including a ceiling base material and a ceiling bar, there are many components, the structure is complicated, and the assembling work requires much labor and time. In addition, there is a problem that the effective space behind the ceiling is adversely affected.

As a means for solving this problem, there is known a structure in which a ceiling bar is suspended in parallel by a suspension fitting attached to a suspension bolt (Japanese Utility Model Application Laid-Open No. 58-12031 and Japanese Utility Model Application Laid-Open No. 60-12061). No. 17816). Among them, the technology described in Japanese Utility Model Laid-Open No.
The hanging metal fittings attached to the hanging bolts are divided into a hanger part integrally provided with plate-shaped legs in the width direction of the U-shaped main body, and a fixing rectangular plate attached to the hanger part in a crossing manner through a cutout groove. The ceiling bar is suspended in a grid by engaging the plate-shaped legs and the fixing plate with the grooves provided in the vertical pieces of the ceiling bar. Further, the technology described in Japanese Utility Model Laid-Open Publication No. Sho 60-17816 discloses a rising portion that hangs in a gap between two ceiling bars,
The upper portion is bent into an L-shape from the rising portion and engages with opposing engagement grooves provided in a vertical piece of the ceiling bar, and is configured with a lower engagement piece.

[0004]

However, the former, that is, the structure described in Japanese Utility Model Application Laid-Open No. 58-12031, has a structure in which the hanger portion and the fixing rectangular plate are connected to each other through cuts. In addition, there is a problem that it takes much time and labor for assembling, and since the ceiling bar is held by the plate-shaped legs and the fixing rectangular plate positioned in the width direction of the U-shaped main body of the hanger, two ceilings are required. There is a problem that the bars cannot be hung in parallel in a line shape, and equipment such as lighting equipment and speakers cannot be arranged in a line. On the other hand, in the latter structure, that is, in the structure described in Japanese Utility Model Laid-Open No. 17816/1987, two ceiling bars can be arranged in parallel in a line, but they are suspended in the gap between the ceiling bars. Since the mounting position of the equipment is limited by the insertion of the metal fitting, there is a problem that it cannot be installed continuously or at a required position.

The present invention has been made in view of the above circumstances, and eliminates the need for a ceiling base material, reduces the number of components, simplifies construction, and allows easy installation of equipment in a line between ceiling bars. It is an object of the present invention to provide such a ceiling structure.

[0006]

In order to achieve the above object, a ceiling structure according to the present invention is provided with equipment between a ceiling bar suspended by a suspension fitting attached to a suspension bolt hanging from a ceiling slab. And a ceiling structure in which a ceiling panel is erected, and the above-mentioned hanging metal fitting is provided with a base having a central portion bent upward and a ceiling protruding outward from both ends of the base. A bar engaging piece, a first lower engaging claw hanging down from a tip side of the ceiling bar engaging piece ,
A second lower engagement having a bend and a point at the lower end
A pair of ceiling bar holding portions each formed of a claw , wherein the ceiling bar locking piece is engaged with an upper portion of the ceiling bar, and the ceiling bar holding portion is provided on a vertical portion of an adjacent ceiling bar. A pointed end of the second lower engaging claw that engages in the groove.
Are formed so as to bite into the bottom wall of the engagement groove .

[0007]

According to the ceiling structure of the present invention constructed as described above, the hanging metal fitting hanging from the ceiling slab can be bent outward from the both ends of the base with the central portion bent upward. A ceiling bar locking piece protruding toward the first bar, a first lower engagement claw hanging down from a tip side of the ceiling bar locking piece , and an intermediate portion.
A second lower engaging member having a bent portion at the lower end and a pointed portion at the lower end.
A pair of ceiling bar holding portions each formed of a dovetail , a ceiling bar locking piece is engaged with an upper portion of the ceiling bar, and the ceiling bar holding portion is formed in an engaging groove provided in a vertical portion of an adjacent ceiling bar. And the tip of the second lower engaging claw is at the bottom of the engaging groove.
Prevents lateral displacement by being formed so that it can bite into the wall
In this state, two ceiling bars can be hung parallel to each other by one hanging metal fitting, and an equipment mounting space can be formed with a swelling upward between the two ceiling bars. Equipment can be freely assembled in a line in the equipment mounting space.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic plan view of the ceiling structure of the present invention as viewed from behind the ceiling, FIG. 2 is a perspective view thereof, and FIG. 3 is a perspective view of a main part of the ceiling structure.

[0010] The ceiling structure of the present invention comprises a hanging bolt 3 suspended from a ceiling slab 1 with an anchor 2 and a support fitting 4.
, And any two adjacent ceiling bars 6 are hung from each other by the hanging metal fittings 5, and for example, lighting equipment is installed in the equipment mounting space 7 formed between the ceiling bars 6. 8
And a speaker 9 are provided. The air-conditioning ceiling bar 60 provided at another arbitrary position is hung by another hanging metal fitting 40 attached to the hanging bolt 3 via the support metal 4 and formed on the air-conditioning ceiling bar 60. Air conditioning space 4
1 is connected to an air outlet chamber 20 for air conditioning. The ceiling panel 10 is installed between the ceiling bars 6 or between the ceiling bar 6 and the ceiling bar 60 for air conditioning.

As shown in FIGS. 3 to 5, the support bracket 4 has an upper horizontal piece 4 having a horizontally long hole 4a into which a screw portion 3a at the lower end of the suspension bolt 3 is horizontally movably inserted.
b, a lower horizontal piece 4 c having a mounting hole (not shown) mounted and fixed on the upper surface of the hanging metal fitting 5,
A reinforcing rib 4f is bent on the side of a U-shaped main body 4e composed of a vertical piece 4d connecting the lower horizontal piece 4c to the lower horizontal piece 4c. The support bracket 4 configured as described above includes an upper nut 3b screwed to the upper side and the lower side of the upper horizontal piece 4b in a state where the threaded portion 3a of the suspension bolt 3 is inserted into the horizontal elongated hole 4a. The lower nut 3c is attached to the suspension bolt 3 so as to be adjustable in height by fastening the lower nut 3c. Therefore, the support bracket 4 can be rotated 360 degrees in the horizontal direction to correct its position, and adjust the vertical displacement of the suspension bolts 3 suspended from the ceiling slab 1 without bending the suspension bolts 3. Can be. Note that the final adjustment is performed by a breath fitting (not shown).

As shown in FIGS. 3 to 5, the hanging metal fitting 5 has an inverted U-shaped base 5a whose central portion is bent upward.
The main part is composed of a ceiling bar locking piece 5d protruding outward from both ends of the base 5a, and a pair of ceiling bar holding parts 5b suspended from the ceiling bar locking piece 5d. The reinforcing ribs 5c are bent on both side pieces of the base 5a to maintain the strength. A mounting hole (not shown) is formed in the center of the base 5a of the hanging metal fitting 5 configured as described above. Fixing bolt 3 penetrating
0 by fastening the fixing nut 31 to the support fitting 4
Is fixed to the lower surface of the lower horizontal piece 4c.

As shown in detail in FIG. 6, the ceiling bar locking piece 5d is formed of a horizontal piece that is bent horizontally from the lower portions at both ends of the base 5a. The ceiling bar holding portion 5b
A plurality (two cases are shown in the drawing) of upper engaging claws 5e vertically cut and raised from the tip side of the ceiling bar locking piece 5d;
A first lower engaging claw 5f hanging down from the upper engaging claw 5e, and a horizontal portion 5d on both sides of the first lower engaging claw 5f are hung down from the distal end sides of the first lower engaging claw 5f. It has a plurality of (three in the drawing) second lower engaging claws 5g having a bent portion 5h separated from the lower engaging claw 5f and having a pointed end 5i at the lower end.

With such a configuration, the upper engaging groove 6 provided above the vertical piece 6a of the ceiling bar 6 is locked by the ceiling bar locking piece 5d (see FIG. 4), and the ceiling bar is held. The part 5b is, as shown in FIG.
The upper and lower engagement grooves 6b and 6c are provided on the upper and lower surfaces of the ceiling bar 6 to suspend the ceiling bar 6. That is, in a state where the ceiling bar 6 is locked by the ceiling bar locking piece 5d, the upper engaging claw 5e of the ceiling bar holding portion 5b is engaged with the upper engaging groove 6b of the ceiling bar 6, and the first After the lower engaging claw 5f of the second lower engaging claw 5g is engaged with the lower engaging groove 6c of the ceiling bar 6 by using a tool such as a plier, the bent portion 5h of the second lower engaging claw 5g is extended. Like the engaging claw 5f, its lower end point 5i
The ceiling bar 6 can be hung by the ceiling bar holding portion 5b of the hanging metal fitting 5 in a state in which the ceiling bar 6 is cut into the bottom wall of the lower engagement groove 6c to prevent lateral displacement.
An equipment mounting space 7 having an upwardly bulging space therebetween can be formed. Therefore, the suspension of the ceiling bar can be strengthened, and the lighting equipment 8 and the speaker 9 can be easily mounted in a line at any place in the equipment mounting space 7. Repair of the speaker 9 can be facilitated.

The ceiling bar 6 is, as shown in FIG.
At the lower end of the vertical piece 6a having the upper engagement groove 6b and the lower engagement groove 6c on both sides, the ceiling panel 10 or the equipment plate 1
5 has a substantially inverted T-shape in cross section having an installation locking ridge 6e. The ceiling bar 6 is formed of, for example, an extruded member made of an aluminum alloy. In addition, ceiling panel 1
Reference numeral 0 denotes a rectangular metal surface plate 11 having a number of small holes (not shown) as shown in FIG. 4, and a heat insulating material such as glass wool disposed on the back surface of the metal surface plate 11. A locking hanging piece 14 bent in a hook shape at an upper end of a rising edge 13 rising from a side of the metal surface plate 11 and having a locking ridge 6e of the ceiling bar 6; And detachably engaged with the ceiling bar 6.

On the other hand, the lighting equipment 8 is disposed in the equipment mounting space 7 formed between the ceiling bars 6, 6 arranged in parallel, and engages with the locking ridges 6e of the opposing ceiling bar 6. A lighting cover 8b having a locking piece 8a;
b, and a light source 8c such as a fluorescent lamp mounted inside. The lighting devices 8 are disposed at appropriate intervals in the linear equipment mounting space 7, and the equipment mounting spaces 7 between the lighting devices 8, 8 include, for example, speakers 9 and the like. Is arranged. In this case, the speaker 9 can be incorporated into the ceiling surface by engaging the equipment plate 15 incorporating the speaker 9 with the lower locking ridge 22 of the joint bar 21 provided between the ceiling bars 6, 6. . In addition,
Equipment other than the speaker 9, for example, a sprinkler, a smoke detector, and the like can be similarly arranged in the equipment installation space 7.

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

First, the suspension bolts 3 are suspended from the ceiling slab 1 with the anchor 2, and the support brackets 4 are attached to the suspension bolts 3.
After attaching with the upper and lower nuts 3b and 3c,
A fixing bolt 30 and a fixing nut 31 are provided on the lower surface of the support fitting 4.
To fix the hanging bracket 5.

Next, the ceiling bar locking piece 5d of the hanging metal fitting 5 is engaged with the side wall of the upper locking groove 6b of the ceiling bar 6, and in this state, the upper engaging claw 5e of the ceiling bar holding portion 5b is engaged. After engaging the upper engagement groove 6b of the ceiling bar 6 with a tool such as pliers, the bent portion 5h of the second lower engagement claw 5g.
And the lower end point 5i of the second lower engagement claw 5g is cut into the bottom wall of the lower engagement groove 6c to suspend the ceiling bar 6.

In the equipment mounting space 7 formed between the ceiling bars 6 and 6, equipment such as lighting equipment 8 and speakers 9 are arranged in a line, and a ceiling panel is provided between the ceiling bars 6 and 6. 10 is erected. The ceiling bars 6 and 60
Is joined to the ceiling bar 6, 60
Has been reinforced. The air-conditioning outlet chamber 2 is provided in the air-conditioning equipment space 41 formed in the air-conditioning ceiling bar 60.
0 is connected, and the assembling work is completed.

[0021]

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

1) A hanging metal fitting hanging from a ceiling slab includes a base having a central portion bent upward, a ceiling bar locking piece projecting outward from both ends of the base, and a ceiling bar. First lower engaging claw hanging down from the tip end of the locking piece
And a second end having a bent portion at the middle portion and a sharp end at the lower end.
And a pair of ceiling bar holders each including a lower engaging claw . The ceiling bar locking piece is engaged with an upper portion of the ceiling bar, and the ceiling bar holder is provided at a vertical portion of an adjacent ceiling bar. The tip of the second lower engaging claw is engaged with the engagement groove.
Since it is formed so that it can bite into the bottom wall of the groove, it eliminates the need for a ceiling base material, reduces the number of components and simplifies construction, and prevents lateral displacement to strengthen the suspension of the ceiling bar. it can.

2) An installation space for the equipment which is bulged upward between the ceiling bars can be formed, so that the equipment can be freely assembled in a line.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a ceiling structure according to the present invention as viewed from behind a ceiling.

FIG. 2 is a perspective view of the ceiling structure of the present invention as viewed from behind the ceiling.

FIG. 3 is a perspective view showing a main part of the ceiling structure of the present invention.

FIG. 4 is a longitudinal sectional view of FIG.

FIG. 5 is a side sectional view of FIG. 4;

FIG. 6 is a perspective view showing a main part of the hanging bracket according to the present invention.

FIG. 7 is a perspective view showing a mounting state of the hanging bracket.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Ceiling slab 3 Hanging bolt 5 Hanging metal fitting 5a Base 5b Ceiling bar holding part 5d Ceiling bar locking piece 5f First lower engaging claw 5g Second lower engaging claw 5h Bend 5i Pointed end 6 Ceiling bar 6a Vertical Piece 6b upper engaging groove 6c lower engaging groove 7 equipment installation space 8 lighting equipment (equipment) 9 speaker (equipment) 10 ceiling panel

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04B 9/00 E04B 9/18

Claims (1)

(57) [Claims] 1. A ceiling structure in which equipment is disposed between ceiling bars suspended by suspension fittings attached to suspension bolts hanging from a ceiling slab, and a ceiling panel is erected. A metal fitting, a base having a central portion bent upward, a ceiling bar locking piece projecting outward from both ends of the base, and a second hanging down from a tip side of the ceiling bar locking piece .
A lower engaging claw, a bent portion at an intermediate portion, and a sharp edge at a lower end.
A pair of ceiling bar holding portions each having a second lower engaging claw having an end portion, wherein the ceiling bar locking piece is engaged with an upper portion of the ceiling bar, and the ceiling bar holding portion is adjacent to the ceiling. The second lower engaging claw engages with an engaging groove provided in a vertical portion of the bar .
A ceiling structure wherein a pointed end of the ceiling is formed so as to be able to bite into a bottom wall of the engagement groove .