JPS6144337Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a ceiling-mounted lighting fixture with a built-in dimmer.

Recently, the number of lighting fixtures with built-in dimmers has been increasing in order to save energy, but due to the temperature characteristics of dimmers and problems with the installation space, one example of conventional lighting fixtures is that they are installed on the ceiling as shown in Figure 1. A lighting device in which a dimmer 22 is housed in a fixture main body 21 suspended from a W, and a fluorescent lamp 24 is arranged from the main body 21 via an arm 23, so that the dimmer 22 and the lamp 24 are independent from each other. There were a lot of equipment. In addition, as another example, a fluorescent lamp 24 and a dimmer 2 are provided in one globe 25.
There are rare lighting fixtures that accommodate 2, but in these cases, due to the high ambient temperature, expensive components with good heat resistance are required, or due to lack of space, they are forced to downsize, which increases the price. It had the disadvantage of causing Furthermore, the first and second
As shown in the figure, a space is required in the center of the lighting equipment to lead in the electric wire, so the pull cord 27 of the switch 26
is suspended from a position away from the center. For this reason, the drawstring 27 of the switch is undesirable from a design point of view because it hangs from a portion outside the center of the cover or glove, or from the side (not shown) of the device body.

This idea was made in order to eliminate the drawbacks of the conventional ones as mentioned above, and by installing a case that houses the dimmer in the lower central part of the lighting equipment, which has a relatively low temperature, it solves the temperature problem. In addition, by taking up wiring space above the case and installing the switch inside the dimmer case, wiring inside the device can be done easily and aesthetically, and the pull cord of the switch can be connected from the center of the device. The object of the present invention is to provide a lighting fixture with a dimmer that can be hung to improve the design.

An embodiment of this invention will be described below with reference to the drawings. In Fig. 3, 1 is an embedded rosette embedded in the ceiling surface W, and 2 is a disk-shaped appliance mounting having a through hole 2a that penetrates the rosette 1 and a flange portion 2b on the periphery. plate,
3 is a fluorescent lamp attached to the lower surface of the periphery of this plate 2, and 4 is a ballast. The plate 2 is screwed to the mounting plate 1a of the rosette 1 with screws 5. Reference numeral 6 denotes a substantially U-shaped mounting fitting that is attached around the through hole 2a of the instrument mounting plate 2 with screws 7, and a wiring hole 8 is provided in the center of this fitting. Reference numeral 9 denotes a light control case, in which substantially U-shaped upper and lower cases 10 and 11 are combined with screws 12, and the upper case 10 is attached to the mounting bracket 6 with screws 12. 13 is the wiring hole 8 of the mounting bracket 6
This is the wiring hole opened in the upper case 10 and coincides with the wiring hole. 14 rests on the lower case 11 and attaches it to the upper case 10.
The dimmer housed inside, 15 is the lower case 11
This is a switch installed inside. 16 is a bowl-shaped cover having a hole 16a inserted through the lower case 11 and whose outer edge engages with the flange portion 2b of the mounting plate 2; 17 is the lower case 11;
The cover 1 is screwed onto the threaded portion 11a provided on the outer periphery of the cover 1.
This is the cap that pushes up and supports 6. 18
is from the switch 15 to the hole 11 in the center of the lower case 11.
b and a drawstring for the switch that is inserted through the hole 17a in the center of the cap 17 and hung.

In the lighting fixture with a dimmer of this invention constructed as described above, wiring space can be secured in the mounting bracket 6, and the dimmer 1 can be secured by the dimmer case 9.
4 is installed at a lower position in the lighting equipment where the temperature is relatively low, where the heat shielding from the fluorescent lamp 3 and ballast 4 can be measured, solving the temperature problem and making it possible to use low-grade and inexpensive components. . Furthermore, by housing the switch 15 in the lower case 11, wiring can be easily and neatly handled within the case, and the drawstring 18 of the switch 15 can be suspended from the center of the lighting device, which is preferable from a design standpoint.

As described above, according to this invention, fluorescent lamps,
Even direct-mounted lighting fixtures that house the ballast and dimmer inside the cover can solve the temperature problem and be made from thermally inexpensive materials, and the position of the switch pull string can also be placed in a design-friendly manner. There are effects such as being able to improve performance.

[Brief explanation of the drawing]

1 and 2 are schematic sectional views of conventional lighting fixtures with a dimmer, and FIG. 3 is a sectional view of a lighting fixture with a dimmer according to this invention. 1...Embedded rosette, 2...Appliance mounting plate, 3...Fluorescent lamp, 6...Mounting bracket, 8,1
3... Wiring hole, 9... Light control case, 10... Upper case, 11... Lower case, 11b... Drawstring hole, 14... Dimmer, 15... Switch, 16...
...Cover, 17...Cap, 17a...Drawstring hole, 18...Switch drawstring. In addition, in the figure,
The same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. An appliance mounting plate that can be attached to the ceiling and has fluorescent lamps attached around the bottom surface, a substantially U-shaped mounting bracket that is vertically installed in the center of this plate, and the mounting bracket. an upper case that is attached to the lower surface of the housing and houses a dimmer inside; a lower case that is combined with this case and has a threaded part on the outer periphery;
The hole opened in the center inserts the above screw part,
A dimmer comprising: a cover whose outer edge engages with a flange formed on the periphery of the mounting plate; and a cap which is screwed into the threaded portion and supports the cover. lighting equipment. 2. The light control according to claim 1 of the utility model registration claim, characterized in that the switch is housed in the lower case, and an insertion hole for the switch's drawstring is provided in communication with the lower case and the center of the cap. Lighting equipment with fixtures.