JPS6114090Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a ceiling-embedded lighting fixture equipped with a straight tube fluorescent lamp.

Since the above-mentioned ceiling-embedded lighting fixtures are installed on high ceilings, they are particularly required to be lightweight and have an easy-to-assemble structure. A lighting fixture is attached to an insert bolt 2 attached to a ceiling slab 1. That is,
In FIGS. 1 and 2, reference numeral 3 denotes a device main body with a substantially U-shaped cross section that is fixed to an insert bolt 2 with a nut 4 so that its height can be adjusted freely, and a stabilizer 5 and a Switches etc. are installed in advance. Reference numeral 6 denotes a support fitting for attaching a reflector, etc., which is hooked and hung on the instrument main body 3 as described later, and 7 is a reflector fixed to the lower surface of the support fitting 6 with decorative screws 8. Sockets (not shown) are attached to both ends of the reflector plate 7, and a straight tube fluorescent lamp 9 is installed below the reflector plate 7.
is installed. In addition, 10 is a ceiling plate, and the support metal fitting 6 is abutted on the lower surface of the ceiling plate.

As shown in FIG. 3, the support fitting 6 includes a central portion 6a that is elongated in the width direction of the instrument main body 3, leg portions 6b, 6b with both ends of the central portion 6a bent downward, and
It consists of support pieces 6c, 6c with the lower ends of b, 6b horizontally extended outward, and rib parts 6d, 6d that bend both sides of the center part 6a upward to reinforce the center part 6a. At the upper ends of the parts 6d, 6d, there are a total of four hooking claws 11, 11, facing each other inwardly.
is installed protrudingly. With respect to this support fitting 6, the hooking claws 1 are attached to both side plate portions 3b and 3c of the instrument main body 3.
1, 11... are inserted from the outside and engaged, a total of 4
Two square holes 12, 12... are bored. The hooking claws 11, 11... are inserted into the square holes 12, 12... by holding down the side plate portions 3b, 3b of the instrument body 3 by hand to slightly reduce the distance between them.
When the side plates 3b, 3c are released after insertion, both the side plates 3b, 3c are restored by the elasticity of the instrument body 3, and the hooks 11, 11... are sufficiently deep inside the instrument body 3, and the support fitting 6 is stabilized. Supported by A plurality of such support fittings 6 are attached to the appliance main body 3, and the support pieces 6c, 6c of the support fittings 6 are brought into contact with the lower surface of the ceiling plate 10.

Such a ceiling-embedded lighting fixture has the advantage that the fixture body 3 of the same size can be used for several types of lighting fixtures by simply changing the dimensions of the support bracket 6, but the use of the support bracket 6 causes the following problems. . That is, due to the recent demand for lighter weight of recessed lighting equipment by saving materials, there is a tendency for the main body 3 of the equipment to be made smaller by reducing the cross-sectional area by reducing the distance between the side plate portions 3b and 3c. It is in. However, when the device body 3 is made smaller in this way, the built-in stabilizer 5
As the gap between both side plate parts 3b and 3c becomes smaller, the amount of elastic deformation of both side plate parts 3b and 3c becomes smaller.
Attaching the support fitting 6 becomes difficult. In addition, in order to securely hook the support metal fitting 6 to the instrument body 3, the hook 1 is
It is necessary to fully insert the hooks 1, 11... into the device body 3, but when the device body 3 is downsized, the hooks 11, 11... come into contact with the built-in stabilizer 5, etc., causing noise. It may cause such things.

The present invention has been made in view of such problems, and provides a ceiling-embedded lighting fixture in which a support fixture is attached to the fixture body via a dedicated support fixture.

The structure of the present invention will be explained in detail below with reference to the embodiments shown in FIGS. 4 to 6.

In FIGS. 4 and 5, the same reference numerals as in FIGS. 1 and 2 indicate the same parts. Reference numeral 13 denotes a device main body having a substantially U-shaped cross section fixed to the insert bolt 2 with a nut 4; 4 a mounting bracket which is a feature of the present invention and is fitted and fixed across the top surface and both outer surfaces of the device main body 13; 15 is a supporting metal fitting that is hooked and engaged with the mounting metal fitting 14 and is suspended. The device body 13 is made sufficiently smaller than conventional products for reasons described later, and a stabilizer 5 and the like are attached to the top surface of the device.
The mounting bracket 14 is attached to the instrument body 13 as shown in FIG.
It has a substantially U-shaped cross section with a top plate part 14a and both side plate parts 14b and 14c that are in contact with the upper surface and both outer surfaces. Overhanging portions 16, 16 are formed that overhang in the direction, and each overhanging portion 1
6, 16 are the hooking claws 17, 17 of the support fitting 15...
A total of four square engagement holes 18, 18...
is drilled. Also, both side plate portions 14 of the mounting bracket 14
A total of four bosses 19, 19, . 14a and both side plate parts 14b, 14c
A reinforcing rib 21 is bored on the outside across the ridge. On the other hand, square holes 22, 22, . . ., in which the bosses 19, 19, .
However, holes 23 having the same purpose and communicating with the insert bolt insertion holes 20 are formed in the top plate portion 13a. Further, the support fitting 15 may be of the same shape as a conventional product, and its details will be omitted.

Next, the assembly order of the lighting fixture with the above configuration will be explained. First, press fit the mounting bracket 14 into the predetermined position of the instrument body 13, and insert the bosses 19, 19... into the square holes 22, 2.
2. Insert it into... and fix it. boss 19,19
... is a shape with the notch end facing upward, and this boss 1
9, 19... slide against the outer surfaces of both sides of the instrument main body 13, so that the mounting bracket 14 is attached to both side plate portions 14.
b, 14c are elastically deformed to expand slightly and are inserted into the instrument body 13, and the bosses 19, 19... are inserted into the square holes 2.
2, 22..., the mounting bracket 14 restores its original shape and is integrated with the device main body 13 in tight contact with the device body 13.
It will not come off unless external force is applied to deform it. Next, lift the fixture body 13 to which the mounting bracket 14 is fixed, and insert the insert bolt 2 protruding from the ceiling slab 1 into the matching hole 2 of the fixture 14 and the fixture body 13.
0 and 23, and fix the instrument main body 13 to the insert bolt 2 at a predetermined height with the nut 4. Next, lift the support fitting 15 with one hand, while holding the device body 1.
Both protruding parts 16, 1 of the mounting bracket 14 fixed to 3
6 inward with another hand, and attach the support fitting 15.
The tips of the hooking claws 17, 17... are the protruding parts 16, 1
6 to a position opposite to the square holes 18, 18, . . . and release the hands from the protruding portions 16, 16. Then, as the overhanging parts 16, 16 are restored, the hooking claws 17, 17...
... is inserted into the square holes 18, 18..., and the support metal fitting 1
5 is engaged and fixed to the mounting bracket 14. This support fitting 15 is attached to one of the projecting parts 1 of the mounting fitting 14.
6 to the other overhang 16 in stages. When the attachment of the support metal fitting 15 is completed, the reflector plate 7 is screwed to the support metal fitting 15 in the same manner as before, the ceiling plate 10 is installed, and finally the fluorescent lamp 9 is attached.

In the case of the above configuration, the instrument main body 13 is
Since the structure does not directly support the device, there is no need to consider the amount of elastic deformation, etc., and since the hooks 17, 17, etc. of the support fitting 15 do not enter the device body 13, the device can be made sufficiently small and lightweight. Can be done. Furthermore, by setting the amount of elastic deformation of the overhanging portions 16, 16 to be large, the mounting fitting 14 can support the supporting fitting 15 with sufficiently high strength. Furthermore, since the width of the mounting bracket 14 is as small as the width of the support bracket 15, the projecting portions 16, 16 are deformed by a small external force, and the work of attaching the support bracket 15 is facilitated.

Note that the present invention is not limited to the above-mentioned embodiments; for example, changes may be made such as removing the mounting bracket from the position of the insert bolt and simply fixing it to the device body with screws, or attaching an engagement structure between the mounting bracket and the support bracket. It is also possible to provide a hook on the metal fitting side and a square engagement hole on the support metal fitting side.

As explained above, in the present invention, the supporting metal fittings are attached to the device body using a special mounting metal fitting, so that the device body can be easily made smaller and lighter, and costs can be reduced by reducing material costs. In addition, the use of dedicated mounting brackets allows for easier, safer, and easier assembly, which is particularly advantageous for ceiling-embedded lighting fixtures that are assembled at high places.

[Brief explanation of the drawing]

Figures 1 and 2 are a partial side view and a cross-sectional view taken along line A-A of a conventional ceiling-embedded lighting fixture, and Figure 3 is a
Figures 4 and 5 are partially exploded perspective views of lighting equipment.
The figure is a partial side view showing one embodiment of the present invention and B-
A sectional view taken along the line B, and FIG. 6 is a partially exploded perspective view of the lighting fixture shown in FIG. 4. 13... Instrument body, 14... Mounting bracket, 15...
...Supporting metal fitting, 16...Protrusion part.

Claims (1)

[Scope of utility model registration request] A device body with a substantially U-shaped cross section, and a device with a substantially U-shaped cross section, which is fixed from the top surface of the device body to both sides, and has projecting portions extending outward from both sides of the device body at both ends. A lighting fixture comprising a mounting bracket and a support bracket that is hooked and engaged with an overhang of the mounting bracket.