JPH024417Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention is a method of attaching a lighting equipment to a mounting surface by fixing a flange that is integrally attached to the lighting equipment body to a mounting bracket that is fixed to a mounting surface such as a ceiling. The present invention relates to a mounting structure for lighting equipment.

[Background Art] As shown in FIG. 5, conventional lighting equipment includes a mounting bracket 2 fixed to a mounting surface such as a ceiling.
There is a lighting device in which a flange 3 integrally attached to a lighting device main body 1 is fixed, and the lighting device is attached to a mounting surface. The mounting bracket 2 is fixed to a mounting surface such as a ceiling using mounting screws 5, and has two mounting screws 4' protruding from it. The mounting screw 4' has a cylindrical shape and has a thread formed over the entire length of its circumferential surface. The flange 3 has a cylindrical shape with a bottom, and has an insertion hole 7 through which the mounting screw 4' of the mounting bracket 2 is inserted, and the mounting screw 4' protrudes from the insertion hole 7.
is fixed to the mounting bracket 2 by screwing a cap nut 6' onto the tip thereof. The lighting device main body 1 includes, for example, a light bulb 9 mounted in a socket 8, and has a structure in which the direction of illumination can be freely changed at the portion connected to the flange 3.

To install this lighting device, first fix the mounting bracket 2 to the mounting surface using the mounting screws 5, then attach the flange 3 to the mounting surface.
The flange 3 is attached to the mounting bracket 2 by passing the mounting screw 4' into the insertion hole 7 of the flange 3, and the cap nut 6' is screwed onto the tip of the mounting screw 4' protruding from the insertion hole 7. , by fixing the flange 3 to the mounting bracket 2. FIG. 4 shows a state in which the flange 3 is fixed to the mounting bracket 2 in this manner.

However, with such a lighting fixture mounting structure, it is necessary to insert two mounting screws 4' into the insertion holes 7 at the same time, making it difficult to pass the mounting screws 4' through the flange 3, resulting in poor workability. There was a problem. In addition, since the structure is such that the cap nut 6' is screwed onto the tip of the mounting screw 4' that protrudes from the insertion hole 7, for example, if the lighting fixture body 1 is compact, the part of the mounting screw 4' that protrudes from the flange 3 There is also the problem that the length of the cap nut 6' that covers the cap nut 6' becomes long, making the cap nut 6' conspicuous and deteriorating the appearance. Furthermore, when changing the lighting direction or cleaning the lighting equipment, for example, the lighting equipment body 1
There is a problem in that the insertion hole 7 portion of the flange 3 is deformed due to the force applied thereto.

[Purpose of the invention] The present invention was made in view of the above points, and its purpose is to improve workability, make the cap nut less noticeable, improve the appearance, and improve the appearance of the flange. It is an object of the present invention to provide a mounting structure for a lighting equipment in which the insertion hole portion of the lighting equipment is not deformed by external force.

[Disclosure of the invention] (Example) An embodiment of the invention is shown in FIGS. 1 to 3.
In the following explanation, since the overall structure is almost the same as that of the conventional example, only the features of this embodiment will be explained. In this embodiment, a bur ring 11 is formed on the flange 3 as a reinforcing piece that protrudes inward from the entire circumference of the inner peripheral edge of the insertion hole 7 . The length A of the mounting screw 4 is made shorter than the thickness B of the flange 3. That is, in this embodiment, the flange 3 is fixed to the mounting fitting 2 without passing the mounting screw 4 through the insertion hole 7 of the flange 3. Therefore, the cap nut 6 used in this embodiment has a cylindrical threaded portion that is inserted into the flange 3 through the insertion hole 7 and screwed onto the mounting screw 4 while the flange 3 is placed over the mounting fitting 2. 6a
and an operating part 6b which has a diameter larger than that of the insertion hole 7 and rotates when the threaded part 6a is threaded into the mounting screw 4. A screw hole 1 into which the mounting screw 4 is screwed is provided on the tip end surface of the threaded portion 6a of the cap nut 6.
0 is provided. Further, the operating portion 6b is formed to have a thickness that allows it to be pinched with fingers when screwing the cap nut 6 onto the mounting screw 4, and a groove for preventing slipping is provided around the circumferential surface.

Hereinafter, a method of attaching the flange 3 and the mounting bracket 2 of this embodiment will be explained. In this embodiment, first, one of the insertion holes 7 of the flange 3 and one of the mounting screws 4 are aligned, and the threaded part of the cap nut 6 is
a into the insertion hole 7 of the flange 3, and screw the cap nut 6 onto the mounting screw 4. At this time, the cap nut 6 is temporarily screwed onto the mounting screw 4. Then, as shown in FIG. 3, rotate the flange 3 around the temporarily tightened side, align the other mounting screw 4 with the insertion hole 7, and screw the cap nut 6 onto the mounting screw 4. do. In this case, the cap nut 6 is screwed into the fully tightened state. Thereafter, when the temporarily tightened cap nut 6 is fully tightened, the attachment of the lighting fixture to the attachment surface is completed. In addition, in order to be able to rotate the flange 3 around the temporarily fixed side,
It goes without saying that the length A of the mounting screw 4 must be shorter than the distance from the flange 3 side surface of the mounting bracket 2 to the tip end surface of the burring 11. In this way, in this embodiment, the cap nut 6 can be screwed onto the mounting screw 4 on one side at a time, so there is no need to pass two mounting screws 4 through the insertion hole 7 of the flange 3 at the same time as in the conventional case. This improves workability. In addition, substantially the same thing can be said when there are two or more mounting screws 4. Further, since the operating portion 6b protruding from the flange 3 of the cap nut 6 only needs to be thick enough to be operated with a finger, the flange 3 of the cap nut 6
The length of the exposed part can be shortened, the cap nut 6 is not noticeable even in a compact lighting fixture, and the appearance is improved. Furthermore, a burring 1 is inserted into the insertion hole 7.
1, even if an external force is applied to the lighting fixture body 1, the mechanical strength of the part where the cap nut 6 is screwed together with the bur ring 11 can be strengthened, and the insertion hole 7 part of the flange 3 will not be deformed. There is no.

[Effects of the invention] As mentioned above, the present invention has the length of the mounting screw shorter than the thickness of the flange, and with the flange covered with the mounting bracket, the flange is inserted through the insertion hole into the flange and screwed onto the mounting screw. It is attached to the mounting surface of the lighting equipment using a cap nut, which consists of a threaded part that fits together, and an operating part that has a diameter larger than the insertion hole and rotates when the threaded part is screwed into the mounting screw. After temporarily screwing the cap nut onto one mounting screw, you can screw the cap nut onto the other mounting screw.In other words, you can screw the cap nut onto the mounting screw individually. This eliminates the need to pass multiple mounting screws through the flange insertion hole at the same time, improving workability. Also, the operating part protruding from the flange of the cap nut only needs to be thick enough to be operated with your fingers.
The length of the portion of the cap nut exposed from the flange can be shortened, the cap nut is not noticeable even in a compact lighting device, and the appearance is improved. Furthermore, since the flange is provided with a reinforcing piece that protrudes inward from the entire circumference of the inner periphery of the insertion hole, even if an external force is applied to the lighting fixture body, the reinforcing piece will prevent the mechanical damage of the part where the cap nut is screwed. It can increase the strength of
Therefore, there is an advantage that deformation does not occur in the insertion hole portion of the flange.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention, and FIG. 2 is a perspective view of the same nut as above.
FIG. 3 is an explanatory diagram of the mounting method of the same as above, FIG. 4 is a front view with a part of the main part of the conventional example broken away, and FIG. 5 is a perspective view showing the overall structure of the same. Reference numeral 1 designates a lighting fixture main body, 2 a mounting bracket, 3 a flange, 4 a mounting screw, 6 a cap nut, 6a a threaded portion, 6b an operating portion, and 11 a burring.

Claims (1)

[Scope of utility model registration request] A cylindrical flange with a bottom, which is integrally attached to the lighting fixture body, is attached to a mounting bracket fixed to a mounting surface such as a ceiling, and a plurality of mounting screws protruding from the mounting bracket are attached to the flange. A lighting fixture mounting structure in which a lighting fixture is attached to a mounting surface by screwing a cap nut through a drilled insertion hole, wherein a reinforcing piece protruding inward from the entire circumference of the inner periphery of the insertion hole is attached to the flange. and a threaded part which is formed so that the length of the mounting screw is shorter than the thickness of the flange, and which is inserted into the flange through the insertion hole with the flange covered with the mounting fitting and screwed into the mounting screw; A mounting structure for a lighting device that is attached to a mounting surface of a lighting device using a cap nut, which has a diameter larger than the insertion hole and includes a threaded portion and an operating portion that rotates when screwed into the mounting screw.