JPS6232305B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ceiling structure, in particular, a structure in which the short side of a long ceiling board is placed on a support bar having flanges arranged in parallel, and adjacent ceiling boards are placed on the end faces of the long sides. This invention relates to a ceiling structure using the so-called semi-concealed construction method, in which the lower flanges of a connecting bar having upper and lower flanges are fitted into a recessed groove to connect the lower flanges.

In recent years, in ceiling structures using the semi-concealed construction method, there has been a tendency to use longer ceiling panels than before due to modules and the like.

However, in the above ceiling structure, the connecting bar is the length of one ceiling plate and connects the ceiling plates to each other, but this connecting bar is not supported by the upper floor slab. If the length of one ceiling board is increased, the weight on each connecting bar increases in proportion to the length, so it is impossible to prevent the ceiling board from bending, and the entire ceiling surface is It will bend and bend. Therefore, a long ceiling board cannot be applied to the ceiling structure using the conventional semi-concealed construction method.

The present invention has been made in order to improve the conventional ceiling structure, and an object of the present invention is to provide a ceiling structure that can maintain a flat state even when a long ceiling board is used. .

Next, the present invention will be explained with reference to the drawings which are one embodiment.

In the figure, reference numeral 1 denotes a long rectangular ceiling plate made of mineral fiber or the like, and grooves 2 are provided on each side of two parallel sides 1a along the longitudinal direction of the ceiling plate. The lower flanges 4b of the connecting bars 3, which are formed to have a substantially H-shaped cross section, are respectively fitted and connected to the adjacent ceiling plates 1.

Reference numeral 5 designates an inverted T-shaped support bar suspended at a predetermined height from the lower surface of the roof frame or upper floor slab (not shown), and the H-shaped connecting bar 3 of the ceiling board 1 connects to the flange 6 of the support bar. One side 1b of the unconnected short sides is placed.

Reference numeral 7 denotes an L-shaped peripheral edge attached to the wall surface parallel to and at the same height as the support bar 5, and the remaining side 1b of the ceiling plate 1 is placed on the flange 8 thereof.

Although not shown, a plurality of support bars 5 are similarly suspended in parallel at a predetermined interval on the side opposite to the wall surface side of the support bar 5, and there is a gap between the flanges of each support bar 5. Ceiling board 1 is H-shaped connecting bar 3
It is stretched in a fitted and connected state.

Reference numeral 9 denotes a long support member suspended from the lower surface of the roof frame or the floor slab on the upper floor via hanging bolts 10 and hanging tools 11 so as to be positioned above the ceiling board 1 and parallel to the H-shaped connecting bar 3. be.

Two pieces 12 are attached to the support member 9 as a pair,
It is a hook-shaped fitting having a U-shaped notch 13 at one end, and the threaded part 15 of the hanging adjustment bolt 14 is hook-shaped and has a screw at the end.
It is inserted into the inside and tightened by a nut 16 screwed into this threaded part 15, fixing the clamping fitting 12 itself to the support member 9, and also tightening the suspension adjustment bolt 14.
It supports The suspension adjustment bolt 14 suspends a long rod-like body 17 that is provided below the support member 9 and intersects with the support member 9 three-dimensionally. The ceiling plate 1 is supported by being attached to the length rod-shaped body 17.

In addition, as shown in FIG.
By providing a protrusion 19 formed by press working or the like on the end of the U-shaped bent part, it is possible to prevent the clamping fitting 12 from coming off from the support member 9 even if the nut 16 becomes a little loose. U as shown by the dashed line
By bending the end of the letter-shaped notch 13, the nut 16 can be prevented from falling off, improving safety not only during adjustment work during construction but also after completion.

Next, a method of constructing a ceiling structure having the above configuration will be explained.

First, as shown in FIG. 2, the L-shaped circumferential edge 7 is fixed horizontally to the inner peripheral surface of the wall at a predetermined height.

Next, a support member 9 is placed at a suitable height above the circumferential edge 7 and suspended from the lower part of the upper floor slab via hanging bolts 10 and hanging tools 11.

The support bar 5 is suspended from the support member 9 at the same height as the circumferential edge 7 so as to be parallel to the circumferential edge 7 at a predetermined distance and intersect with the support member 9.

An appropriate number of clamping fittings 12 are provided at appropriate intervals on this support member 9, the threaded portion 15 of the suspension adjustment bolt 14 is inserted into the U-shaped notch 13, and the nut 16 screwed in advance is tightened. At the same time, the clamping fitting 12 is attached to the support member 9, and the suspension adjustment bolt 14 is fixed. Furthermore, the elongated rod-shaped body 17 is suspended by the suspension adjustment bolt 14 so as to intersect with the support member 9 three-dimensionally.

Then, place both short sides of the ceiling plate 1 on the circumferential edge or on the upper surface of the flanges 6 and 8 of the support bar 5,
Next, one of the lower flanges 4b of the H-shaped connecting bar 3 is fitted into the groove 2 provided on the long side surface of the ceiling plate 1.

Next, the upper part of the clip 18 is made to straddle the elongated rod-like body 17, and its lower part is locked to the upper flange 4a of the H-shaped connecting bar 3, thereby connecting the H-shaped connecting bar 3 and the elongated rod-like body 17. do.

Furthermore, one of the lower flanges 4b of the H-shaped connecting bar 3 is fitted into the groove 2 provided on the other side of the ceiling plate 1, and the H-shaped connecting bar 3 and the elongated rod-shaped body 17 are similarly clipped. 18, and repeat this step to form the ceiling.

As is clear from the above description, the present invention has two parallel long sides of a long rectangular ceiling plate fitted with the lower flange of an H-shaped connecting bar having upper and lower flanges, and supports the other two short sides. In ceilings constructed by mounting on bars or peripheral flanges,
A long rod-like body is suspended in parallel with the support bar from a support member suspended from the lower surface of the upper floor slab, etc., via appropriate metal fittings, and this long rod-like body and the H-shaped connecting bar are fixed. Even if the ceiling board is long, it can be prevented from sagging due to its weight. In addition,
By arranging a plurality of these elongated rod-like bodies on a single ceiling material, even very long ceiling panels can be used. Therefore, even if the ceiling board becomes large, a flat ceiling can be constructed, the construction period can be shortened, and the appearance is also excellent.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the ceiling structure according to the present invention, FIG. 2 is a sectional view showing the case where part A in FIG. 1 is a wall surface, and FIG. 3 is a perspective view showing the main parts of the ceiling structure in FIG. 1. FIG. 4 is a partial view of FIG. 3 seen from direction B, and FIG. 5 is a perspective view of the clamping fitting. 1...Ceiling board, 1a, 1b...side, 2...concave groove, 3...
H-shaped connecting bar, 4b... lower flange, 5... inverted T-shaped bar, 6... flange, 8... flange, 9... support member, 14... hanging adjustment bolt, 17... long rod-shaped body, 18... clip.

Claims (1)

[Claims] 1. Place the short side of a long ceiling board on a support bar having flanges arranged in parallel, and insert the upper and lower flanges between adjacent ceiling boards into grooves provided on the end faces of the long sides. At the ceiling where the lower flanges of the connecting bars are fitted and connected, the lower flanges of the connecting bars are suspended by suitable means from the upper floor slab, and are located above the connecting bars and between the parallel support bars, and are perpendicular to the connecting bars. 1. A ceiling structure characterized in that an elongated rod-like body is arranged in a direction in which the elongated rod-like body and a connecting bar are connected by an arbitrary method. 2. The ceiling structure according to claim 1, wherein the elongated rod-like body and the upper flange of the connecting bar are connected by a suitably shaped clip. 3. A patent characterized in that a support bar and an elongated rod-like body are suspended from an upper floor slab, positioned above the support bar and the elongated rod-like body, and supported by a support member perpendicular thereto. Claim 1
The ceiling structure according to any one of paragraphs 1 and 2. 4. The ceiling structure according to any one of claims 1 to 3, wherein the elongated rod-shaped body is supported by a hanging metal fitting having a height adjustment function from the support member.