JPH0220734Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention relates to lighting equipment, and in particular to a structure for securely attaching shades having the same dimensions to lighting equipment bodies having different outer diameters in annular fluorescent lighting equipment. It is.

Prior Art In general, in order to attach a shade to a cylindrical lighting equipment body that is equipped with a holder that holds an annular fluorescent lamp and has a built-in ballast, switch, etc., it is necessary to extend the shade horizontally from the side wall surface of the lighting equipment body and install a built-in stabilizer. A flange is provided to prevent the heat generated from the container from being transferred.
By screwing or mounting on the flange,
The shade was locked. For this reason, if the external dimensions of the lighting fixture body differ, the dimensions of the flange part will also differ, so the dimensions of the shade mounting part must also be changed in accordance with the changes in the dimensions of the lighting fixture body, making it difficult to use a single shade. was severely restricted.

Problems that the invention aims to solve By the way, in order to respond to the diversification of consumer tastes, there is a need for lighting fixtures that use different light sources while using shades with the same design. but,
The outer diameter of a lighting fixture using an annular fluorescent lamp varies depending on the wattage of the annular fluorescent lamp, and even more so in the case of an incandescent lamp. Because they are extremely small compared to the original design, it is difficult to use them in common even if they have the same design, and it is necessary to prepare several types of dedicated shades with mounting dimensions that match lighting equipment with different light sources.

Also, if you try to use a shade with a small mounting part for an incandescent lighting fixture by forcefully mounting it on the main body of an annular fluorescent lighting fixture, the shade will be attached to the annular shape instead of the flange of the annular fluorescent lighting fixture. Since it is placed on the back side (upper part) of the fluorescent lighting fixture, stable installation of the shade cannot be expected. Furthermore, a ballast is built into the back side of the annular fluorescent lamp body, and the heat generated by the ballast causes the back side of the annular fluorescent lamp body to become extremely hot (70 degrees Celsius).
~90℃). Therefore, if the shade was placed directly on top of the annular fluorescent lamp body, heat dissipation would be poor, and there was a risk that the built-in ballast would abnormally overheat or the shade would be deformed due to heat.

Therefore, the purpose of the present invention is to provide a lighting equipment that has a simple structure, allows the use of a common shade for lighting equipment bodies with different outer diameters, and does not reduce the heat dissipation effect for the heat generated by the built-in ballast. It is in.

Means for Solving the Problems Therefore, in order to solve the above-mentioned problems, the present invention is constructed by attaching a substantially cylindrical shade adapter to the lighting fixture body and placing the shade on the top of the shade adapter. It is used as a lighting fixture.

Function According to this invention, in the case of annular fluorescent lamp lighting equipment, a substantially cylindrical shade adapter is attached to the lighting equipment body, and the shade is placed on top of the shade adapter, so that the external dimensions of the lighting equipment body are A single shade can be used even if the numbers are different.

Furthermore, since the shade adapter forms a space between the back of the main body of the annular fluorescent lamp and the shade, the heat generated by the built-in ballast is smoothly radiated.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 1 to 6.

In the figure, reference numeral 1 denotes the main body of a ring-shaped fluorescent lamp lighting fixture, which is equipped with a holder 1b that holds a ring-shaped fluorescent lamp 1a, and has a built-in ballast 1c, a switch 1d, a night bulb 1e, a glow starter 1f, etc. ing. A cord case 2 formed as a separate member is engaged with the lighting fixture main body 1, and a cord 2 extending from the cord case 2 is engaged with the lighting device body 1.
It is suspended from the ceiling by a. The cord case 2 can be used for other lighting equipment bodies as long as the engagement structure with the back side (upper part) of the lighting equipment body 1 is the same.

3 is a shade adapter which has a substantially cylindrical shape and has a rising part 3a inserted into the opening 4a of the shade 4 at the top and a pedestal part 3b on which the shade 4 is placed, and a bottom part which is placed on the pedestal 2b of the cord case 2. It is provided with a flange portion 3c for doing so. Then, insert the L-shaped claw 3d inside the flange part 3c into the L-shaped hole 2c provided in the base part 2b of the cord case 2,
The shade adapter 3 can be engaged and fixed to the cord case 2 by rotating it to the right (〓 mark) direction.
Note that the shade adapter 3 may be simply placed on the cord case 2, or the shade adapter 3 and the cord case 2 may be fixed with screws.

Reference numeral 5 denotes an incandescent lighting fixture body, which has a threaded portion 5a that engages with a shade fixing ring 6, and a flange portion 5.
The shade 4 is attached so as to be held between the shade fixing ring 6 and the shade fixing ring 6. Incidentally, the incandescent light bulb 7 is screwed into the socket portion 5c of the incandescent lighting fixture body 5, and suspended from the ceiling by a cord 5d.

Therefore, the size of the opening 4a of the shade 4 is set so that the threaded part 5a of the main body 5 of the incandescent lamp can be inserted with a slight gap, and the outer diameter of the rising part 3a of the shade adapter 3 is If the dimensions are made the same as the outer diameter of the threaded portion 5a of the lighting fixture body 5, the shade 4 can be used for both the lighting fixture body 1 and the lighting fixture body 5.

Furthermore, even if the outer diameter of the lighting fixture body 1 is different, if the engagement method is the same as that of the cord case 2, the same cord case 2 can be used, and the shade adapter 3 can be used.
Since the same one can also be used, shade 4 can be used in common.

Effects of the Invention As described above, according to the present invention, a single shade can be applied to lighting fixture bodies of different sizes, so that a variety of lighting fixtures with different light sources can be constructed using shades with one type of design.

In addition, in the case of annular fluorescent lighting fixtures, the shade does not come into direct contact with the main body, which becomes hot due to the heat generated by the built-in ballast, so there is no need to consider heat resistance for the material used for the shade, and various materials can be used. You can choose from a wide range of designs, increasing your freedom of design. If the height of the shade adapter is selected appropriately, it is possible to secure a space between the upper part of the annular fluorescent lamp device and the shade, promoting heat dissipation from the built-in ballast, and increasing the distance between the annular fluorescent lamp and the shade. You can also set the position to any position.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of the annular fluorescent lighting device according to the present invention, Fig. 2 is an enlarged perspective view of the main part of Fig. 1, and Fig. 3 is a side cross-section of Fig. 2. 4 is a side view including a partial cross section of an embodiment of an annular fluorescent lighting device in use, and FIG. 5 shows a shade of an annular fluorescent lighting device according to the present invention as an incandescent lighting device. FIG. 6 is a side view including a partial cross section of the incandescent lighting device in use. In the figure, 1 is the lighting equipment body, 2 is the cord case,
3 is a shade adapter, and 4 is a shade.

Claims (1)

[Scope of utility model registration request] An instrument main body 1 having a cord case 2 on the top surface,
A substantially cylindrical shade adapter 3 having a flange part 3c placed on the pedestal part 2b of the cord case 2 at the bottom and a pedestal part 3b having a rising part 3a formed at the top, and a type that can be placed on the pedestal part 3b. It consists of a shade 4 attached to the instrument body 1 and a shade 4.
A lighting fixture characterized in that a space of an arbitrary height is provided between the lighting equipment and the lighting equipment.