JPH05331952A - Ceiling structure - Google Patents

Abstract

PURPOSE:To simplify construction work by reducing structural parts as well as raise the rigidity of the fixed part of air conditioners. CONSTITUTION:For a ceiling bar 6, a trough-shaped base 6a having a passage for air conditioner, having a blow-out port 6b for air conditioner, and a coupling flange 6g extended toward inner and outer directions from both-side upper ends of the base 6a are formed. For the metal 5, an interval holder piece 5b hung down from the side of the metal 5a contacted with the upside of the ceiling bar 6 and coupled with the inner side of the flange 6g is formed. Also, on the side crossing the piece 5b, the ceiling bar holder 5c coupled with the outside of the flange 6g is formed. The ceiling bars 6 can thus be strongly and simply attached to the downside of the metal 5 to be attached through the metal 4 to the hanging bolt 3 from the ceiling slab 1.

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 specifically, a ceiling panel is erected on a ceiling bar suspended by a suspension fitting attached to a suspension bolt suspended from a ceiling slab. At the same time, the present invention relates to an improvement of a ceiling structure in which air conditioning equipment is arranged.

[0002]

2. Description of the Related Art Conventionally, as a ceiling structure of this type, two ceiling bars are suspended in parallel via a suspension fitting attached to a suspension bolt suspended from a ceiling slab, and an air conditioner is installed between the ceiling bars. A structure adapted to be incorporated is known (see Japanese Utility Model Laid-Open No. 3-86925). This ceiling structure is a structure in which a connecting member arranged between two ceiling bars is fixed to the ceiling bar with a bolt, and the connecting member is hung by a hanging metal fitting attached to a hanging bolt.

Further, there is also known a structure in which one ceiling bar itself is provided with a ventilation port, a ventilation passage, etc.
-18010 gazette).

[0004]

However, in the former, that is, in the ceiling structure described in Japanese Utility Model Laid-Open No. 3-86925, the space for mounting the air conditioner is formed by the two ceiling bars, and the hanging metal fitting is used. Since the ceiling bar is suspended by the suspended connecting member and the bolts, there are problems that the number of constituent members is increased, the structure is complicated, and that the assembly work requires a lot of labor and time. It was Further, the latter, that is, the ceiling structure using the ceiling bar described in Japanese Utility Model Laid-Open No. 53-18010 can reduce the number of ceiling bars because the space for mounting the air conditioner can be formed by one ceiling bar. In this structure, since the connecting fittings provided at the ends of the ceiling bar (specifically, the intersections where the four ceiling bars are gathered) are hung by the hanging bolts, the required strength of the ceiling bar is increased. Have to hold in. Therefore, there is a problem that the ceiling bar is required to have rigidity and that the ceiling bar cannot be locally reinforced.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a ceiling structure in which the number of constituent members is reduced, the construction is simplified, and the rigidity of a mounting portion of an air conditioner is increased. Is.

[0006]

In order to achieve the above-mentioned object, the ceiling structure of the present invention has a ceiling panel, a ceiling panel, and a ceiling panel which are suspended by a suspending fitting attached to a suspension bolt suspended from a ceiling slab. Assuming a ceiling structure in which the air conditioning equipment is installed, the above-mentioned ceiling bar has a gutter-shaped base portion having an air-conditioning passage having an air-conditioning outlet, and both upper ends of the gutter-shaped base portion. From the side of the metal fitting body that abuts on the upper surface of the ceiling bar and engages with the inner surface of the engaging flange. And a pair of ceiling bar holding portions that engage with the outer surface of the engaging flange are formed on the sides orthogonal to the spacing holding pieces.

In the present invention, the interval holding piece may be hung from one side of the metal fitting body as long as it is hung from the side of the metal fitting body and comes into contact with the inner surface of the engaging flange of the ceiling bar. It is good, but it is preferable that it is hung from two opposite sides of the metal fitting body.

The ceiling bar holding portion may be any as long as it is formed on a side of the metal fitting body that is orthogonal to the spacing holding piece and engages with the outer surface of the engaging flange of the ceiling bar. Preferably, the ceiling bar holding portion is composed of a bent piece that is hung from the metal fitting body, and an engaging projection that is cut and raised inward and upward from the bent piece.

[0009]

According to the ceiling structure of the present invention constructed as described above, the ceiling bar has a gutter-shaped base portion having an air-conditioning passage having an air-conditioning air outlet, and inner and outer sides from both upper ends of the gutter-shaped base portion. An engaging flange extending in the direction, and the suspending metal fitting includes a spacing holding piece that hangs from the side of the metal fitting body that abuts on the upper surface of the ceiling bar and engages with the inner surface of the engaging flange, and this spacing. By forming the ceiling bar engaging part that engages with the outer surface of the engaging flange on the side orthogonal to the holding piece, it is possible to attach the hanging bracket not only at the end of the ceiling bar but also at the position corresponding to the air conditioning mechanism. It is possible to easily and surely arrange the ceiling bar while avoiding local deformation and complicated reinforcement of the ceiling bar.

Further, the ceiling bar holding piece is composed of a bent piece which is hung from the metal fitting body, and an engaging projection which is cut and raised inward and upward from the bent piece, so that the hanging metal fitting is held. And the ceiling bar can be connected more easily and firmly.

[0011]

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 seen from the underside of the ceiling, FIG. 2 is a perspective view thereof, and FIG.

In the ceiling structure of the present invention, the ceiling slab 1 is hung with the anchor 2 and the hanging bolt 3 is supported by the support fitting 4.
The hanging metal fitting 5 is attached via the air conditioning ceiling bar 6 by the hanging metal fitting 5, and the air conditioning chamber 7 is connected to the air conditioning passage 6e of the air conditioning ceiling bar 6. , With another suspension metal fitting 50 that is attached to the support metal fitting 2
Another ceiling bar 60 of the book is suspended in parallel, and the ceiling panel 10 is installed between the ceiling bars 6 and 60. In addition,
Facility equipment mounting space 6 formed between the ceiling bars 60, 60
A lighting device 62 and a speaker 63 are provided in the unit 1.

As shown in FIGS. 3 and 4, the support fitting 4 has an upper horizontal piece 4 having a horizontal elongated hole 4a into which the threaded portion 3a on the lower end side of the hanging bolt 3 is horizontally movably fitted.
b and the lower horizontal piece 4 mounted and fixed on the upper surface of the hanging bracket 5
The reinforcing ribs 4f are bent on the sides of the U-shaped body 4e, which is composed of c and a vertical piece 4d connecting the upper horizontal piece 4b and the lower horizontal piece 4c. The support fitting 4 configured as described above is connected to the 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 hanging bolt 3 is fitted into the horizontal elongated hole 4a. The lower nut 3c is fastened to the suspension bolt 3 so that its height can be adjusted. Therefore, the support fitting 4 can be rotated 360 degrees in the horizontal direction to correct its position, and
The vertical displacement of the suspension bolt 3 depending on the ceiling slab 1 can be adjusted without bending the suspension bolt 3. The final adjustment is performed by a brace fitting (not shown).

As shown in FIGS. 4 and 5, the hanging metal fitting 5 has a rectangular metal fitting body 5 having a mounting hole 5g formed in the center thereof.
a, a distance holding piece 5b that hangs from two opposing sides of the metal fitting body 5a and engages with an inner surface of an engagement flange 6g of the ceiling bar 6 described later, and a distance holding piece 5b of the metal fitting body 5a.
The main part is composed of a pair of ceiling bar holding portions 5c that engage with the outer surface of the engagement flange 6g formed on two sides that are orthogonal to. In this case, the ceiling bar holding portion 5c has an elastically deformable bent piece 5d that hangs down from the side of the metal fitting body 5a.
And an engaging projection 5 having a tapered surface that is cut and raised inward and upward from a notch 5f provided in the bent piece 5d.
e and.

In the hanging metal fitting 5 constructed as described above, the fixing bolt 20 is penetrated from below into the mounting hole 5g and the mounting hole 4g of the supporting metal fitting 4, and the fixing nut 21 is attached to the protruding portion of the fixing bolt 20. By fastening, it is fixed to the lower surface of the support fitting 4.

On the other hand, as shown in FIG. 5 and FIG. 6, the ceiling bar 6 has a pair of upper and lower portions which are bent like cranks at both ends of a bottom wall 6c having air-conditioning outlets 6b formed at appropriate intervals. Gutter-shaped base 6a having a side wall 6d, and this gutter-shaped base 6a
For engaging the ceiling flange 6g extending inward and outward from the upper ends of both side walls 6d and having a hanging piece 6f at the tip thereof, and for ceiling panel installation projecting outward from the lower side of both side walls 6d in an L shape And a joint piece 6i protruding horizontally from the lower end portions of both side walls 6d outward. The ceiling bar 6 is formed of, for example, an extruded shape member made of aluminum alloy, and then has a bottom wall 6c provided with an air conditioning outlet 6b. An upper end of the trough-shaped base portion 6a is opened, and an air-conditioning chamber 7 in which an air-direction adjusting louver 8 is disposed inside the air-conditioning passage 6i through the opening.
Is connected with inserted.

As shown in FIG. 4, the ceiling panel 10 has a rectangular metal surface plate 11 having a large number of small holes (not shown) formed therein, and a rear surface of the metal surface plate 11. A ceiling hanging bar 14 is provided with a heat insulating / sound absorbing material 12 such as glass wool, and a hook hanging locking piece 14 is bent at the upper end of a standing edge 13 standing on the side of the metal surface plate 11. 6 is detachably engaged with the locking projection 6h of the ceiling bar 6,
It is designed to be installed between them.

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

First, a hanging bolt 3 is hung on the ceiling slab 1 with an anchor 2 and a supporting metal fitting 4 is attached to the hanging bolt 3.
After attaching the upper and lower nuts 3b and 3c,
A fixing bolt 20 and a fixing nut 21 are provided on the lower surface of the support fitting 4.
The hanging metal fitting 5 is fixed.

Next, when the ceiling bar 6 is pushed up from below the hanging metal fitting 5 and the engaging flange 6g is pushed between the space holding piece 5b and the ceiling bar holding portion 5c, the inner surface of the engaging flange 6g is spaced. While being restricted by the holding piece 5b, as shown by the arrow in FIG. 5, the bent piece 5d of the ceiling bar holding portion 5c is formed by the tapered surface of the engaging projection 5e provided on the ceiling bar holding portion 5c.
After being elastically deformed outward and slightly pushed apart, the engaging projection 5e engages the hanging piece 6f of the engaging flange 6g. Therefore, the upper end opening of the ceiling bar 6 is held at a distance by the distance holding piece 5b, and the engaging flange 6 of the ceiling bar 6 is held.
g is a space holding piece 5b and a bent piece 5d of the ceiling bar holding portion 5c.
And the engaging flange 6 on the engaging protrusion 5e.
The hanging piece 6f of g is placed and engaged, and furthermore, the engaging flange 6g of the ceiling bar 6 is deformed inward to release the engagement with the engaging projection 5e and prevent the ceiling bar 6 from falling off. There is.

Next, after the ceiling panel 10 is installed between the ceiling bar 6 arranged as described above and another ceiling bar 60 suspended by another suspending metal fitting 50, the ceiling bar 6 is installed. The fall prevention member 15 that engages with the outer lower portion of the engaging flange 6g and the locking projection 6h is pressed against the upper surface of the edge portion of the ceiling panel 10. In addition, a joint material 16 is provided between the ceiling bars 6 and 60.
Are joined together to reinforce the ceiling bars 6 and 60 and ensure an accurate pitch. Then, the air-conditioning chamber 7 is connected to the air-conditioning passage 6e of the ceiling bar 6, and the equipments such as the lighting equipment 62 and the speaker 63 are arranged in the equipment-equipment mounting space 61 between the other ceiling bars 60 and 60. The assembly work is completed.

[0023]

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

1) According to the ceiling structure of claim 1, the ceiling bar has a gutter-shaped base portion having an air-conditioning passage having an air-conditioning air outlet, and extends inward and outward from both upper ends of the gutter-shaped base portion. The existing engaging flange is formed, and the hanging metal fitting is provided with a space holding piece that is hung from the side of the metal fitting body that abuts the upper surface of the ceiling bar and engages with the inner surface of the engagement flange. Since a pair of ceiling bar holding parts that engage with the outer surface of the engaging flange are formed on the orthogonal sides, not only the ends of the ceiling bar but also the hanging bracket can be attached at the position corresponding to the air conditioning mechanism. It is possible to easily and surely arrange the ceiling bar while avoiding local deformation and complicated reinforcement.

2) According to the ceiling structure of the second aspect, the ceiling bar holding portion is engaged with the bent piece hung from the metal fitting body and cut and raised from the bent piece inward and upward. Since it is composed of the protrusions, it is possible to further easily and firmly connect the suspension fitting and the ceiling bar.

[Brief description of drawings]

FIG. 1 is a schematic plan view of the ceiling structure of the present invention seen from the back of the ceiling.

FIG. 2 is a perspective view of the ceiling structure of the present invention seen from the back of the ceiling.

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

4 is a vertical cross-sectional view of FIG.

FIG. 5 is an exploded perspective view showing a mounting state of the ceiling bar and the hanging metal fitting in the present invention.

FIG. 6 is a perspective view showing a ceiling bar according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling slab 3 Suspending bolt 5 Suspending metal fitting 5a Metal fitting body 5b Interval holding piece 5c Ceiling bar holding part 5d Bending piece 5e Engaging protrusion 6 Ceiling bar 6a Gutter-shaped base 6b Air conditioning outlet 6e Air conditioning passage 6g Engaging flange

Claims (2)

[Claims] 1. A ceiling structure in which a ceiling panel is erected on a ceiling bar suspended by a suspending metal fitting attached to a suspension bolt suspended from a ceiling slab, and an air conditioning device is disposed in the ceiling structure. In the ceiling bar, a gutter-shaped base portion having an air-conditioning passage having an air-conditioning air outlet is formed, and engagement flanges extending inward and outward from both upper ends of the gutter-shaped base portion are formed. A space holding piece is formed so as to be hung from the side of the metal fitting body that abuts on the upper surface of the ceiling bar and engages with the inner surface of the engaging flange, and the outer surface of the engaging flange is formed on the side orthogonal to the space holding piece. A ceiling structure, characterized in that a pair of ceiling bar holding portions that engage with each other are formed. 2. The ceiling bar holding portion is composed of a bent piece that is hung from the metal fitting body, and an engaging projection that is cut and raised inward and upward from the bent piece. The ceiling structure according to claim 1.