JPH0443924Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a system ceiling lighting device in which lighting units are arranged on each side of a square-shaped opening in the system ceiling formed by T-bars. It is something.

[Prior Art] Conventionally, this type of system ceiling lighting device, in which lighting units are arranged on each side of a square-shaped opening in the system ceiling formed by T-bars, has four lighting units placed on the floor. They were assembled in a rectangular shape, and each lighting unit was individually suspended using two hanging bolts.

[Problems to be solved by the invention] However, in the conventional example described above, eight hanging bolts are required, which increases the number of hanging bolts and makes installation difficult. There was a problem that the construction was more troublesome because it was assembled in a shape.

The present invention has been made in view of the above points, and its purpose is to provide a system ceiling lighting device that can reduce the number of hanging bolts and is easy to install.

[Means for Solving the Problems] The system ceiling lighting device of the present invention is a system ceiling lighting device in which lighting units are arranged on each side of a square-shaped opening in the system ceiling formed by T-bars. In the lighting device, each lighting unit is formed by a U-shaped main box opening downward, and a lighting fixture body attached to the main box, and the outer leg of each main box is hooked to a T-bar. At the same time, the ends of the inner leg pieces of each main box are connected to each other with an engaging metal fitting to be integrated, and a pair of opposing main boxes are connected to each other.
It is designed to be hung using book hanging bolts.

[Function] The present invention is constructed as described above, and is a system ceiling lighting device in which lighting units are arranged on each side of a square-shaped opening in the system ceiling formed by T-bars. Each lighting unit
It is formed by a U-shaped main box that opens downward and a lighting fixture body that is attached to the main box. The ends of the inner leg pieces are connected to each other with engagement fittings and integrated, and a pair of opposing main boxes are suspended with two hanging bolts each, reducing the number of hanging bolts. Moreover, since the construction can be performed on the ceiling surface, the construction can be simplified and the construction time can be shortened.

[Embodiment] Figures 1 to 7 show an embodiment of the present invention, in which lighting units 3a to 3d are installed on each side of a square-shaped opening 2 in the system ceiling formed by a T-bar 1. In the installed system ceiling lighting device, each of the lighting units 3a to 3d is formed by a U-shaped main box 4 that opens downward, and a lighting fixture body 5 that is attached to the main box 4, The outer leg pieces 4a of each main box 4 are hooked and locked to the T-bar, and the ends of the inner leg pieces 4b of each main box 4 are connected to each other with the engaging fittings 6, 7.
A pair of opposing main boxes 4a and 4c are connected and integrated by two hanging bolts 8, respectively.
It is designed to be hung at. In the embodiment, the outer leg piece 4a is hooked onto a T-bar using an L-shaped hook 10 that projects from the side surface. Further, the engaging metal fitting 6 is
It is an L-shaped metal fitting that is inserted into an engagement hole 11 formed by folding back at the tip of the inner leg piece 4b, and the engagement fitting 7 is formed by cutting and raising the end part of the inner leg piece 4b. The reverse side that is press-fitted into the engaging hole 12
It is a wedge metal fitting with a protruding shape.In the figure, 13
is a hanging bolt fitting to which the hanging bolt 8 is screwed;
14 is a square hole 1 bored in the side surface of the lighting fixture body 5
A lighting fixture attachment claw 4a is engaged, and 15 is a socket insertion hole into which the lamp socket 5a of the lighting fixture body 5 is inserted.

Now, when each of the lighting units 3a to 3d is installed in the square-shaped opening 2 in the system ceiling, first, the hook fittings protruding from the outer leg pieces 4b of the main box 4 of the lighting units 3a and 3c are attached. 10 is hooked onto the T-bar 1, and the main box 4 is suspended using the hanging bolts 8. Next, the lighting units 3b, 3d
The hook fitting 10 protruding from the outer leg piece 4b of the main box 4 is hooked onto the T-bar 1, and the engaging fitting 6 is attached to the main box 4 as shown in FIGS. 3 to 5. The inner leg piece 4b is bent outward and inserted into the engagement hole 11 to be engaged. In this case, the end of the main box 4 is cut at 45°, so
The amount of deflection can be reduced. Next, the engaging tool 7 is inserted into the main box 4 as shown in FIG.
The end portions of the main boxes 4 of the lighting units 3a to 3d are connected to each other and integrated by press-fitting into the engagement holes 12 formed by cutting and raising the inner leg pieces 4b of the lighting units 3a to 3d. Next, as shown in FIG. 7, the lighting fixture body 5 is attached to the upper part of the main box 4 using the mounting claw 14, and a fluorescent lamp is attached to the lamp socket 5a of each lighting fixture body 5, and the lighting units 3a to 3 are attached. Complete the 3d arrangement. Here, since there are only four hanging bolts 8, the number of hanging bolts 8 is halved compared to the conventional example, simplifying the configuration and shortening the construction time. In addition, it is possible to assemble it on the ceiling using the flexure of the main box 4.
Not only does construction time become shorter, there is no need for a temporary storage area for assembled items.

[Effects of the invention] The present invention is constructed as described above, and provides a system ceiling lighting device in which a lighting unit is arranged in each piece of a square-shaped opening in the system ceiling formed by a T-bar. , each lighting unit is
It is formed by a U-shaped main box that opens downward and a lighting fixture body that is attached to the main box. The ends of the inner leg pieces are connected to each other with engagement fittings and integrated, and a pair of opposing main boxes are suspended with two hanging bolts each, reducing the number of hanging bolts. Moreover, since the construction can be carried out on the ceiling surface, it has the effect of simplifying the construction and shortening the construction time.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is an exploded perspective view of the same, Fig. 3 is a perspective view of the main parts of the same, Figs. 4 and 5 are side views of the main parts of the same, and Figs. FIG. 6 is a perspective view of the main parts of the same as above, and FIG. 7 is a perspective view of the main parts of the same. 1 is a T-bar, 2 is an opening, 3a to 3d are lighting units, 4 is a main box, 4a and 4b are leg pieces,
Reference numeral 5 indicates a lighting fixture body, reference numerals 6 and 7 indicate engagement fittings, and reference numeral 8 indicates a hanging bolt.

Claims (1)

[Scope of utility model registration request] In a system ceiling lighting device in which lighting units are arranged on each side of a rectangle-shaped opening in a system ceiling formed by a T-bar, each lighting unit is placed in a U-shaped main box that opens downward. and a lighting fixture body attached to the main box, and the outer leg pieces of each main box are T.
At the same time as hooking and locking on a bar, the ends of the inner leg pieces of each main box are connected to each other with engaging metal fittings to integrate them, and a pair of opposing main boxes are each suspended using two hanging bolts. A system ceiling lighting device characterized by: