JP3103947B2 - 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 in which a ceiling bar suspended via suspension means suspended from a ceiling slab has an earthquake resistance. Things.

[0002]

2. Description of the Related Art In general, a system ceiling is known in which a ceiling panel is erected between a plurality of ceiling bars suspended via suspension means suspended from a ceiling slab.

[0003] In the ceiling constructed as described above, in order to impart seismic resistance to the ceiling portion, conventionally, a stretching means such as a breathing fitting is inclined between the ceiling slab and the suspending means. Is known (JP-A-54-1643).
No. 12, JP-A-55-13749).

[0004] Of these tension means, the former, that is, the one described in Japanese Patent Application Laid-Open No. 54-164312, has a breath fixed to the ceiling slab at the upper end in an oblique direction and the lower end of the breath is welded to the ceiling base material. The latter, that is, the one described in Japanese Utility Model Laid-Open Publication No. 55-13749, has a plurality of threaded portions for attaching a breath obliquely downwardly directed to an anchor embedded in a ceiling slab. The suspension means (suspension metal fittings) are provided radially with a plurality of breath attachment pieces, each of which is provided with a breath attachment insertion hole that is directed obliquely upward, and a breath attachment screw portion and a breath attachment piece are provided. It has a structure in which a breath bolt is connected to an insertion hole for attaching a breath.

[0005]

However, the former stretch structure has a problem that the construction is troublesome because the breath is connected by fixing means such as welding. In addition, in the latter, the construction is easier than the former, since the breath bolt is stretched by screw connection without using fixing means such as welding,
There are problems that the structure is complicated, processing is troublesome, and installation of the breath bolt is troublesome.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ceiling structure which can be easily attached with a simple structure, and has a strong seismic resistance to a ceiling bar and a ceiling. It is assumed that.

[0007]

In order to achieve the above object, a ceiling structure according to the present invention comprises a ceiling panel installed between a plurality of ceiling bars suspended via suspension means suspended from a ceiling slab. A ceiling structure having one end engaged with the suspending means and the other end engaged with the upper surface of the ceiling bar, the tension means being adjustable in tension. A narrow opening groove is formed along the longitudinal direction of the bar, and the stretching means includes a mounting piece slidably inserted into the narrow opening groove and capable of engaging with the narrow opening edge. And a fixture for fixing to the narrow opening edge.

In the present invention, the tension means may have any structure as long as one end is engaged with the suspending means and the other end is engaged with the upper surface of the ceiling bar and is adjustable in tension. Preferably, the tension means is connected to the upper breath fitting for engaging the suspending means, the lower breath fitting for engaging the narrow opening edge of the ceiling bar with the fixing means, and connected to the upper and lower breath fittings. It is better to use a breath bolt.

The mounting piece may be of any configuration as long as it can be inserted into the narrow opening groove of the ceiling bar and can be engaged with the narrow opening edge. The width of one of the opposing sides is smaller than the opening width of the narrow opening edge of the ceiling bar, and the other opposing side width is formed to be longer than the opening width of the narrow opening edge. It is preferable that at least one of the corners is formed in an arc shape.

The fixing tool may be any one as long as it fixes the mounting piece to the narrow opening edge of the ceiling bar. For example, it is screwed into a screw hole provided in the mounting piece and is applied to the bottom of the narrow opening groove. It can be formed by a fixing screw that contacts.

[0011]

According to the ceiling structure of the present invention constructed as described above, one end of the tension means capable of adjusting the tension is engaged with the suspending means, and the mounting piece at the other end is fixed to the upper surface of the ceiling bar by the fixture. By engaging with the narrow opening groove provided in the ceiling bar, the ceiling bar can be easily and firmly stretched by screw connection without using fixing means such as welding, thereby providing earthquake resistance. At this time, after the mounting piece is inserted into an arbitrary position in the narrow opening groove of the ceiling bar, it is rotated in the horizontal direction so as to be able to engage with the narrow opening edge, and can be engaged and fixed by the fixing tool. .

[0012]

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 perspective view of the entire ceiling structure of the present invention. The ceiling structure according to the present invention includes a suspension means suspended from the ceiling slab 1 with an anchor 2, namely a suspension bolt 3, a suspension metal fitting 4 attached to the suspension bolt 3, and a lower part of the suspension metal fitting 4. , A plurality of ceiling bars 6 connected orthogonally by the connection bracket 5, and a ceiling in a rectangular space 7 for erection of a ceiling panel formed by the plurality of ceiling bars 6. A plurality of rectangular ceiling panels 8 are provided between the bars 6 and 6. Also, ceiling bar 6 at any position
Tension means 1 for preventing horizontal movement of the ceiling bar 6 between the upper surface of the ceiling bar and the suspension bolts 3 constituting the suspension means.
0 is extended in an inclined manner.

In this case, as shown in FIG. 1, the rectangular space 7 is formed by connecting the intersections of the four ceiling bars 6 orthogonally with the connecting metal fittings 5 so as to form a coplanar square shape.
A plurality of the square spaces 7 are assembled on the same plane to form a ceiling frame. In addition, a lighting device 9a and an equipment plate 9b such as a speaker, a smoke detector, or a sprinkler are straddled between two parallel connecting bars 60, 60 laid across the facing ceiling bars 6, 6 in the rectangular space 7. Has been established.

[0015] In this case, the ceiling bar 6 is shown in Figs.
As shown in the figure, the upper surface of the hollow rectangular base 6a has a narrow opening groove 6b that opens along the longitudinal direction, and the vertical piece 6c hangs down the center of the lower end face of the base 6a.
A flange 6e having a locking ridge 6d for erection of a ceiling panel is orthogonally provided at the lower end of the flange 6e. The ceiling bar 6 configured as described above is formed of, for example, an extruded member made of an aluminum alloy.

On the other hand, as shown in FIG. 1 to FIG.
0, a lower breath fitting 30 which engages with an opening 6f (hereinafter referred to as a narrow opening edge) of the narrow opening groove 6b of the ceiling bar 6 with a fixing screw 37 as a fixing tool, and an upper breath fitting 20 and a lower breath fitting. It is configured with a breath bolt 40 connected to 30 so that the tension can be adjusted.

In this case, the upper breathing fitting 20 surrounds the suspension bolt 3 and has a substantially C-shaped channel shape in which the opposed sides 22, 22 of the opposed side walls 21, 21 in the vertical direction mesh with the screw portions 3 a of the suspension bolt 3. And a burring portion 23 having a screw hole for attaching a breath bolt is provided on the lower side wall 21.

The lower breathing fitting 30 has a slanted plate 32 formed by bending a neck 31 having a width which can be inserted into the narrow opening groove 6b at the lower end side in a vertical direction, and a lower end side of the slanted plate 32. Mounting piece 33 bent horizontally from the neck 31
And a connecting piece 34 which is bent from the upper end side of the inclined plate body 32 and mounts the other end of the breath bolt 40. In this case, the mounting piece 33 is formed in an elongated shape in which one opposite side width is smaller than the opening width of the narrow opening edge 6f of the ceiling bar 6, and the other opposite side width is larger than the opening width of the narrow opening edge 6f. An arcuate surface 35 is formed at one of the longitudinal corners of the mounting piece 33. 5 and 6 by making the corners arc-shaped.
As shown in FIG. 6, after the mounting piece 33 is inserted into the narrow opening groove 6b of the ceiling bar 6, the lower breathing fitting 30 is rotated about 90 degrees in the horizontal direction so as to be able to engage with the narrow opening edge 6f. Can be smoothly moved. The arcuate surface 35 may be provided on at least one of the longitudinal corners of the mounting piece 33. Also,
At the center of the mounting piece 33, a screw hole 33a for mounting a fixing screw 37 as a fixing tool is provided. On the other hand, the connecting piece 34 bent at the upper end side of the inclined plate body 32 is provided with a notch groove 36 through which the breath bolt 40 is inserted, and the breath bolt 40 inserted through the notch groove 36 is provided. The lower breathing fitting 30 and the breathing bolt 40 are connected by holding the connecting piece 34 between two nuts 41 screwed to the lower part.

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

First, a hanging bracket 4 is attached to the lower end of a hanging bolt 3 suspended from the ceiling slab 1 with an anchor 2, and a ceiling bar 6 is connected with a connecting bracket 5 suspended by the hanging bracket 4. . Next, after suspending the suspension bolt 3 in the upper breathing fitting 20 through the opening of the upper breathing fitting 20 with a breath bolt 40 having one end connected to the burring portion 23 of the upper breathing fitting 20 in advance, the side walls 21 , 21 are engaged with the threaded portions 3 a of the suspension bolts 3, and the upper breathing fitting 20 is fastened to the suspension bolts 3. This work can be performed simply by inclining the breath bolt 40 downward and engaging the opposite sides 22, 22 of the upper breath fitting 20 with the screw portions 3a of the suspension bolts 3, so that the upper breath fitting 20 can be easily provided without providing a scaffold. Can be fixed to the suspension bolt 3.

As shown in FIGS. 5 and 6A, the mounting piece 33 of the lower breath fitting 30 is connected to the narrow opening groove 6b of the ceiling bar 6 while the upper breath fitting 20 is fixed to the suspension bolt 3. After that, the lower breathing fitting 30 is rotated 90 degrees in the horizontal direction so that the inclined plate 32 of the lower breathing fitting 30 is parallel to the ceiling bar 6, and the mounting piece 33 engages with the narrow opening edge 6f. (See FIG. 6B). At this time, the mounting piece 33 can be slid in the narrow opening groove 6b to be moved to an arbitrary position, and the arc-shaped surface 35 is provided at the corner of the mounting piece 33.
The horizontal rotation of the lower breathing fitting 30 can be performed smoothly. In this state, the fixing screw 37 is screwed into the screw hole 33a of the mounting piece 33 to press the tip of the fixing screw 37 against the bottom of the narrow opening groove 6b, and the mounting piece 33 is pressed against the lower surface of the narrow opening edge 6f to lower the lower part. The breath fitting 30 is fixed. Then, after the lower end of the breath bolt 40 is inserted into the notch groove 36 of the connecting piece 34 of the lower breath metal fitting 30, a nut 41 screwed to the projecting side of the breath bolt 40 is tightened to tighten the breath bolt 40 and the lower breath metal fitting. And 30. At this time, the fixing screw 37 is loosened and the lower
The position of engagement with the zero ceiling bar 6 can be adjusted.

Therefore, the ceiling slab 1 and the ceiling bar 6 can be made rigid by connecting the upper breathing fitting 20 and the lower breathing fitting 30 with the breath bolt 40.

The ceiling panel 8 is erected in the ceiling panel erection rectangular space 7 formed by the ceiling bar 6 attached as described above, and the lighting equipment 9a or other equipment plate 9b is assembled to install the ceiling panel. The assembly work is completed.

[0024]

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) According to the ceiling structure of the first aspect, one end of the tension means capable of adjusting the tension is engaged with the suspending means, and the other mounting piece is provided on the upper surface of the ceiling bar with a fixture. Since the ceiling bar is engaged with the narrow opening groove, the ceiling bar can be firmly stretched by screw connection without using fixing means such as welding, and the earthquake resistance of the ceiling can be improved.

2) According to the ceiling structure of the second aspect, the tension means comprises an upper breath fitting which engages with the suspending means, and a lower breath fitting which engages the narrow opening edge of the ceiling bar with the fixing means. Since it is composed of the upper breathing fitting and the breathing bolt connected to the lower breathing fitting, it is possible to easily adjust the tension of the tension means and to easily attach the tension means to the suspension means and the ceiling bar. can do.

3) According to the ceiling structure of the third aspect, after the mounting piece is inserted into the narrow opening groove of the ceiling bar, it is rotated in the horizontal direction so as to engage with the narrow opening edge, and fixed. Since it can be engaged and fixed by a tool, the tension means can be easily attached to any position of the ceiling bar.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing the entire ceiling structure of the present invention.

FIG. 2 is a sectional view showing a stretching means in the present invention.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a perspective view showing an attached state of the stretching means.

FIG. 5 is an exploded perspective view showing an attached state of the stretching means.

FIG. 6 is an explanatory view showing an attached state of the stretching means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling slab 3 Hanging bolt (hanging means) 4 Hanging bracket (hanging means) 6 Ceiling bar 6b Narrow opening groove 6f Narrow opening edge 8 Ceiling panel 10 Stretching means 20 Upper breathing fitting 30 Lower breathing fitting 33 Mounting piece 37 Fixing screw (fixing tool) 40 Breath bolt

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho-61-43303 (JP, U) Japanese Utility Model 2-18813 (JP, U) Japanese Utility Model 3-37114 (JP, U) Japanese Utility Model 4- 45815 (JP, U) Shokai 63-54710 (JP, U) Shokai Hei 2-56223 (JP, U) Shokai Hei 4-6407 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) E04B 5/58

Claims (3)

(57) [Claims] 1. A ceiling structure in which a ceiling panel is erected between a plurality of ceiling bars suspended via suspension means hanging down from a ceiling slab, one end of which is engaged with the suspension means. Tension adjusting means having an end engaged with the upper surface of the ceiling bar; and a narrow opening groove formed along the longitudinal direction of the ceiling bar on the upper surface of the ceiling bar; It is characterized by comprising a mounting piece slidably inserted into the narrow opening groove and capable of engaging with the narrow opening edge, and a fixture for fixing the mounting piece to the narrow opening edge. Ceiling structure. 2. The tension means is connected to the upper breath fitting and the lower breath fitting. The upper breath fitting engages with the suspending means, the lower breath fitting engages the narrow opening edge of the ceiling bar with the fixing tool. 2. The ceiling structure according to claim 1, wherein the ceiling structure is formed by a breath bolt. 3. The mounting piece is formed in an elongated shape in which one opposing side width is smaller than the opening width of the narrow opening edge of the ceiling bar and the other opposing side width is larger than the opening width of the narrow opening edge. 2. The apparatus according to claim 1, wherein at least one of the corners in the longitudinal direction of the mounting piece is formed in an arc shape.
Or the ceiling structure according to 2.