JPH0673831A - Joint device of ceiling bar - Google Patents

Abstract

PURPOSE:To connect ceiling bars to each other by means of a small number of structural members simply and surely, so as to accomplish anti-earthquake reinforcement and to improve the execution efficiency. CONSTITUTION:A joint device includes a joint main body 9 having a C-shaped section which is engaged with the end areas 3a of ceiling bed materials 3 pressed to each other in such a manner as to extend over both areas for regulating the lateral movement. Clamp screws 10 for pressing and fixing the ceiling bed materials 3 to a lower horizontal piece 9c is screwed in an upper horizontal piece 9d of the joint main body 9. A brace fitting is stretched between a hung bolt 1 and the joint main body 9. Thus, the joint main body 9 can be simply engaged with the ceiling bed material 3 due to its sectional shape from the direction intersecting perpendicularly to the material 3, and the joint main body 9 can be engaged with the end areas 3a, 3a of the ceiling bed materials 3 pressed to each other in such a manner as to extend over both areas, whereby the lateral movement of both ceiling bed materials 3 is regulated by the c-shaped section. Further, both ceiling bed materials 3, 3 can be pressed and fixed to the lower horizontal piece 9c of the joint main body 9 by tightening the clamp screws 10. Further, the horizontal position adjustment and anti-earthquake reinforcement for the ceiling bed materials 3 can be facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling bar joint device, and more particularly to a ceiling bar joint device for longitudinally connecting a ceiling base material or a ceiling finish material, which is a ceiling bar, for example. is there.

[0002]

2. Description of the Related Art Generally, as a ceiling structure, a ceiling bar, which is a ceiling bar, is arranged horizontally and in parallel with each other via a hanger at the lower end portion of a hanging bolt which is hung at an appropriate interval on a ceiling slab. It is known that ceiling finishing materials are suspended in parallel with each other via a hook so as to be orthogonal to these on the ceiling base material, and a ceiling panel is installed between the ceiling finishing materials.

In such a ceiling structure, since it is necessary to connect the ceiling base material or the ceiling finish material in the longitudinal direction according to the size of the ceiling, various joint devices for these ceiling bars are put into practical use. Has arrived. As a means for connecting the ceiling bars, for example, a structure in which the ceiling bars are in contact with each other, a connecting plate is attached over the end side surfaces of both ceiling bars, and they are connected by a fixing bolt or the like, or one ceiling bar There is known a structure in which the other end portion of the ceiling bar is inserted into the other end portion to be connected.

Further, in this type of ceiling structure, for example, a reinforcing member such as a brace fitting is hung between the hanging bolts for seismic reinforcement.

[0005]

However, in the former structure, that is, in the structure in which the connecting plate is attached and fixed by the fixing bolt, the ceiling bar needs to be drilled, which is troublesome and difficult to perform. There was a problem of poor sex. Further, in the latter case, that is, in the insertion method in which the end portion of the ceiling bar is inserted and connected, there is a problem that the workability is poor because the work must be done in order. In addition, in order to strengthen the earthquake resistance, in addition to the connection part of the ceiling bar,
Since the brace fittings are attached to the hanging bolts or the ceiling slab, many members are required and the construction is troublesome.

[0006] The present invention has been made in view of the above circumstances, and provides a ceiling bar joint device with good workability, which enables easy and reliable connection of ceiling bars to each other with a small number of structural members and seismic reinforcement. The purpose is to provide.

[0007]

In order to achieve the above object, a ceiling bar joint device of the present invention is a joint for connecting a ceiling bar suspended from a ceiling slab via a suspension bolt in the longitudinal direction. Based on the device, a joint body having a C-shaped cross section that engages over the abutted end portions of the ceiling bar and regulates the movement in the lateral width direction, and a ceiling that is screwed into an upper horizontal piece of the joint body. And a tightening screw for pressing and fixing the bar to the lower horizontal piece, and a brace fitting is stretched between the suspension bolt and the joint body.

In the present invention, the breath metal fitting may have any structure as long as it is stretched between the suspension bolt and the joint body, but preferably the lower end portion of the breath metal fitting is a T-shaped hook. It is better to form a piece and to form a hook hole in the upper horizontal piece of the joint body for engaging with the hook piece.

[0009]

According to the ceiling bar joint device of the present invention constructed as described above, the joint body is formed into a C-shaped cross section so that the joint body can be easily engaged with the ceiling bar in a direction orthogonal thereto. It is possible to engage the joint main body across the ends of the abutting ceiling bars, and to restrict the movement of both ceiling bars in the lateral width direction by the C-shaped cross-sectional shape. Further, both ceiling bars can be pressed and fixed to the lower horizontal piece of the joint body by tightening the tightening screw, and the position of the ceiling bar can be adjusted in the horizontal direction by the brace fitting, and seismic reinforcement can be achieved.

Further, a T-shaped hooking piece is formed at the lower end of the brace fitting, and a hooking hole that engages with the hooking piece is formed in the upper horizontal piece of the joint body, whereby a brace is formed on the joint body. The metal fittings can be easily hooked, and the brace of the ceiling bar can be easily and reliably performed on the joint body.

[0011]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of an example of a system ceiling equipped with a ceiling bar joint device according to the present invention as seen from the back of the ceiling.

The system ceiling has a hanger 2 fixed to a suspension bolt 1 suspended by an anchor B on a ceiling slab A and a ceiling base material having a U-shaped cross section which is a ceiling bar suspended by the hanger 2. 3, and a ceiling finishing material 5 having a J-shaped cross section, which is a plurality of ceiling bars attached to the ceiling underlying material 3 with hooks 4 orthogonally to the ceiling underlying material 3.
And a plurality of ceiling panels 6 installed in a panel mounting space 20 formed between the facing ceiling finishing materials 5 and 5, an air outlet, a speaker, a sprinkler and smoke for the lighting device 21 and an air conditioner not shown. It is configured with an equipment panel 6a to which equipment such as a detector is attached.

The ceiling base material 3 and the ceiling finish material 5 are connected in the longitudinal direction via joint devices 7 and 8, respectively. As shown in FIGS. 2 to 4, the joint device 7 for the ceiling base material 3 includes the end portions 3a, 3a of the ceiling base materials 3, 3 which are brought into contact with each other.
Cross-section C that engages with each other to regulate movement in the width direction
The joint body 9 having a shape is provided. Specifically, the joint body 9 is formed in an angular cross-section C shape, and regulates the movement of the ceiling base material 3 in the lateral width direction between the back surface portion 9a and the upper tongue pieces 9d and the lower tongue pieces 9e facing the back surface portion 9a. It is supposed to do. That is, the inner lateral width wa of the joint body 9 is formed to be substantially the same as the outer lateral width wb of the ceiling base material 3.

The vertical width wc between the upper horizontal piece 9b and the lower horizontal piece 9c of the joint body 9 is formed larger than the vertical width wd of the ceiling base material 3, and the ceiling base material 3 moves up and down in the joint body 9. It is supposed to be accommodated. The upper tongue piece 9d is formed to have a width larger than that of the lower tongue piece 9e, and when the lower flange portion 3c of the ceiling base material 3 comes into contact with the lower horizontal piece 9c of the joint body 9, the upper base tongue piece 9d has a width. The stopper portion 9g that abuts the lower surface of the upper flange portion 3b of the
It is bent at a right angle from the lower end of d toward the inside. Then, as shown in (b) of FIG. 4, the joint body 9 first uses the opening 9f on the front surface thereof in the direction perpendicular to the longitudinal direction of the ceiling base material 3 in the upper flange 3b of the ceiling base material 3 first.
And then the lower flange 3c of the ceiling base material 3 is accommodated by rotating the upper flange 3b as a fulcrum to engage with the ceiling base material 3. The upper horizontal piece 9b of the joint body 9 is provided with a screw hole 11 by burring, and the two ceiling base materials 3 housed by the tightening screws 10 screwed into the screw hole 11 are respectively inserted into the lower horizontal piece 9c of the joint body 9. It is designed to be pressed against and fixed. This tightening screw 10 has a knob 10 at the upper end.
It is formed by a thumbscrew having a.

On the other hand, the joint body 9 can also be used for bracing the ceiling base material 3. That is, as bracing means, in this embodiment, an upper breath metal fitting 12 hooked on the suspension bolt 1, a lower breath metal fitting 13 hooked on the joint body 9, and the upper breath metal fitting 12 and the lower breath metal fitting 13 are provided. The breath bolt 14 that connects the two is used.

The upper brace fitting 12 is formed in a U-shaped cross section, and is hooked to the hanging bolt 1 at edges 12c and 12d of the opposing side walls 12a and 12b opposite to the streaks. One end of a breath bolt 14 penetrates the lower side wall 12b of the upper breath metal fitting 12 and is screwed to a nut 15, so that the breath bolt 14 is supported in a state of being inclined obliquely downward with respect to the suspension bolt 1. Lower breath metal fitting 1
One end of 3 is bent at a right angle to form a bolt mounting portion 13a, and the bolt mounting portion 13a is formed with a notch portion 13b through which the other end of the breath bolt 14 is inserted. The lower brace fitting 13 is mounted on the brace bolt 14 in a positionally adjustable manner, with the bolt mounting portion 13a being clamped by a pair of nuts 16 and 16 screwed to the brace bolt 14.

As described above, a T-shaped hooking piece 17 is formed at the tip of the lower brace fitting 13 supported obliquely from above, and the upper end of the joint body 9 is formed. Rectangular hook holes 18 on which the hook pieces 17 are hooked are formed on both sides of the part (see FIG. 3). In this case, the vertical width we of the hooking hole 18 is formed larger than the width wg of the head portion 17a of the hooking piece 17, and the lateral width wf of the hooking hole 18 is the hooking piece 1.
The width wh of the neck portion 17b of No. 7 is substantially the same. As a result, the lower brace fitting 13 has the hooking piece 17 and the hooking hole 18
It can be easily hooked by inserting it into the and rotating it by 90 degrees. When the lateral width of the joint body 9 is formed to be narrower than the width of the head portion 17a of the hooking piece 17 as shown in FIG.
The notch 19 that allows the locking piece 17 to rotate can be formed on the a and the upper tongue piece 9d.

When connecting the ceiling base material 3 using the joint device 7 constructed as described above, first, the tightening screw 1
In a state where 0 is loosened, the joint main body 9 is hooked on the ceiling base material 3 by accommodating the upper flange 3b of the ceiling base material 3 from the front opening 9f. Next, the joint main body 9 may be rotated around the upper flange 3b of the ceiling base material 3 as a fulcrum to accommodate the lower flange 3c of the ceiling base material 3. Since the joint main body 9 has a C-shaped cross section, On the other hand, they can be easily engaged in the direction orthogonal to this.

Then, the joint body 9 is positioned so as to straddle the abutted ends 3a, 3a of the ceiling base material 3, and then both tightening screws 10, 10 are tightened.
The movement of the ceiling base material 3 in the lateral width direction between the abutted end portions 3a, 3a is restricted, and both the ceiling base materials 3 are pressed against the lower horizontal piece 9c of the joint body 9 by tightening the tightening screw 10. Fixed. Therefore, the end portions 3a, 3a of the both ceiling base materials 3, 3 can be easily and surely connected to each other. In this case, the upper flange 3b of the ceiling base material 3 is pressed by the tightening screw 10, but since the upper flange 3b of the ceiling base material 3 is hooked on the stopper portion 9g of the upper tongue piece 9d of the joint body 9, The upper flange 3b of the ceiling base material 3 is not bent and deformed by the tightening of the tightening screw 10.

Further, a T-shaped hooking piece 17 is formed at the tip of the lower brace fitting 13 supported obliquely from above, and the hooking piece 17 is hooked on both sides of the upper horizontal piece 9b of the joint body 9. Since the hook hole 18 is formed, the lower breath metal fitting 13 can be easily hooked on the joint body 9, and the ceiling base material 3
The brace can be easily formed through the joint body 9.

Although the joint device 7 for the ceiling base material 3 has been described in the above embodiment, the joint device 8 for the ceiling finish material 5 can also be constructed in the same manner (see FIG. 7). In addition,
In FIG. 7, the same parts as those of the joint device 7 of the ceiling base material 3 are designated by the same reference numerals, and the description thereof will be omitted. In the figure, 5a and 5
b is an upper flange and a lower flange of the ceiling finishing material 5.

[0022]

As described above, since the ceiling bar joint device of the present invention is configured as described above, it has the following effects.

1) According to the ceiling bar joint device of the first aspect, since the joint body has a C-shaped cross section, it can be easily engaged with the ceiling bar in a direction orthogonal thereto. This joint main body can be engaged across the ends of the abutted ceiling bars to restrict the movement of both ceiling bars in the lateral width direction. Also, by tightening the tightening screw, press both ceiling bars against the lower horizontal piece of the joint body to fix it,
The brace fittings can be used to adjust the position in the horizontal direction and to perform seismic reinforcement. Further, since the joint body and the brace fitting are stretched, the number of constituent members can be reduced.

2) According to another aspect of the present invention, there is provided a ceiling bar joint device in which a T-shaped hooking piece is formed at a lower end portion of the breath metal fitting, and the upper horizontal piece of the joint body is engaged with the hooking piece. Since the hook hole is formed, the brace fitting can be easily hooked to the joint body, and the bracing of the ceiling bar can be easily and reliably performed on the joint body.

[Brief description of drawings]

FIG. 1 is a perspective view showing a ceiling structure using a ceiling bar joint device according to an embodiment of the present invention.

FIG. 2 is a front view showing a joint device for a ceiling base material according to the present invention.

FIG. 3 is a plan view with a part of FIG. 2 omitted.

4A and 4B are views showing a mounting state of the joint device, FIG. 4A is a side view showing a state in which a tightening screw is tightened, and FIG. 4B is a side view showing a state in which the joint device is attached.

FIG. 5 is a plan view of a lower brace fitting according to the present invention.

FIG. 6 is a view showing a mounting state of a lower breath metal fitting,
(A) is sectional drawing of the state which latches the latching piece of a lower breath metal fitting by making a half rotation, and (b) is sectional drawing in the state which latched the lower breath metal fitting to the narrow joint main body.

FIG. 7 is a side view showing another embodiment of the joint device.

[Explanation of symbols]

 1 Suspension bolt 3,5 Ceiling bar (ceiling base material, ceiling finishing material) 9 Joint body 10 Tightening screw 13 Lower breath metal fitting 17 Hooking piece 18 Hooking hole

Claims (2)

[Claims] 1. A joint device for connecting a ceiling bar suspended from a ceiling slab via suspension bolts in a longitudinal direction, wherein the ceiling bar is engaged across the abutted ends of the ceiling bar. A fitting body having a C-shaped cross section that restricts movement in the widthwise direction, and a tightening screw that is screwed into an upper horizontal piece of the fitting body to press and fix the ceiling bar to the lower horizontal piece, the hanging bolt and the fitting body. A fitting device for a ceiling bar, characterized in that a breath metal fitting is stretched between and. 2. A T-shaped hooking piece is formed at a lower end portion of the breath metal fitting, and a hooking hole which engages with the hooking piece is formed in an upper horizontal piece of the joint body. Item 2. A joint device for a ceiling bar according to Item 1.