JPH0130735Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention relates to a waterproof lighting fixture that is attached to a ceiling surface or the like.

[Background technology]

2. Description of the Related Art Conventionally, there is a waterproof lighting device shown in FIG. That is, the mounting surface 31 is pressed against the construction material via the waterproof packing 32 of the appliance body 31.
A protrusion 33 is provided around the entire circumference of a. The protrusion 33 is hollow and has an arcuate cross section projected by pressing. waterproof packing 3
2 and the mounting surface 31a of the instrument body 31 are provided with a power supply hole 34 and a mounting hole 35 that are aligned with each other.

The protrusion 33 was provided for the following reason. The waterproof packing 32 prevents water from entering the device main body 31 from the power supply hole 34 and the mounting hole 35, but when installing the device main body 31, the tightening of the mounting screws inserted into each mounting hole 35 may vary. If this occurs, the distribution of the elastic force of the waterproof packing 32 may vary, and the instrument body 31 may be deformed. In order to prevent this, the protrusion 33 is required.

However, since the protrusions 33 are provided around the entire circumference, water that has entered the inside of the protrusions 33 is difficult to come out and remains trapped. Therefore, waterproof packing 32
If a defect occurs in the state of attachment of the adhesive to the appliance body 31, water may enter the interior of the appliance body 31, causing insulation failure.

[Purpose of invention]

The object of this invention is to provide a lighting fixture in which deformation of the fixture body can be prevented by the protrusions on the periphery of the mounting surface of the fixture body, and water can be prevented from accumulating inside the protrusions.

[Disclosure of invention]

The lighting fixture of this invention is provided with a protrusion on the periphery of the mounting surface that is pressed against the construction material through the waterproof packing of the fixture body, and a cutout is formed in a part of the circumferential direction of the protrusion.

According to the structure of this invention, since a cutout is provided in the protrusion on the periphery of the mounting surface of the device body, even if water infiltrates inside the protrusion, it can easily flow out from the cutout, and the protrusion Prevents water from accumulating inside. Therefore, it is possible to prevent water from entering the inside of the device body through holes provided in the mounting surface of the device body, and the waterproofness is improved. In addition, since only a part of the circumference is provided with a missing part and a protrusion is formed on the periphery, the instrument body will not be deformed due to uneven tightening pressure due to the mounting screws, etc. of the instrument body. There is no.

Embodiment An embodiment of this invention will be described based on FIGS. 1 and 2. This lighting fixture is provided with a protrusion 4 on the periphery of a mounting surface 1a that is pressed against construction materials through waterproof packings 2 and 3 of the fixture body 1, and a cutout 5 is formed in a part of the circumferential direction of the protrusion 4. This is what I did.
The cutout portions 5 are formed at multiple locations in the circumferential direction. The device main body 1 is made of a press molded metal plate or a resin molded product, and the protrusion 4 is hollow and has an arcuate cross section. A power supply hole 6 and a plurality of mounting holes 7 are provided on the mounting surface 1a of the instrument body 1, and annular protrusions 8 and 9 are provided surrounding the power supply hole 6 and the mounting holes 7, respectively. The annular protrusions 8 and 9 have the same cross-sectional shape as the circumferential protrusions 4. Projection 4
The height of the annular protrusions 8 and 9 is determined by the tightening pressure of the waterproof packings 2 and 3 when the mounting screws are tightened until the tips of the protrusions 4 and the annular protrusions 8 and 9 touch the surface of the construction material. is the appropriate height. Waterproof packing 2 and 3 have power supply hole 6 and mounting hole 7
It is provided only around the annular protrusion 8,
It has an outer circumferential shape that fits inside the 9. Each of the waterproof packings 2 and 3 has holes that match the power supply hole 6 and the attachment hole 7. Waterproof packings 2 and 3 are attached to the main body 1 of the device. A glove 10 and a guard grid 11 are attached to the front side of the instrument body 1.

According to this configuration, since the cutout portion 5 is provided in the protrusion 4 on the periphery of the mounting surface 1a of the instrument main body 1, water can be removed from the protrusion 4.
Even if water enters the inside of the protrusion 4, it can easily flow out from the cutout 5, and water can be prevented from accumulating inside the protrusion 4. Therefore, water can be prevented from entering the inside of the device body 1 through the power supply hole 6 and the attachment hole 7 provided in the mounting surface 1a of the device body 1, and waterproofness is improved. In addition, since only the missing portion 5 is provided in a part of the circumferential direction and a protrusion is formed on the periphery, the device body 1 may be damaged due to uneven tightening pressure due to the mounting screws, etc. of the device body 1. Never deformed.

In addition, in this embodiment, a power supply hole 6 and a mounting hole 7 are provided.
Since the annular protrusions 8 and 9 are provided around the periphery, even if water infiltrates inside the protrusions 4 on the periphery, it will not enter inside the annular protrusions 8 and 9. Therefore, the waterproofness of the device main body 1 is significantly improved, and poor insulation within the device main body 1 can be reliably prevented. Moreover,
The water-proof packings 2 and 3 only need to be small enough to be placed around the power supply hole 6 and the mounting hole 7, so that cost reduction can be achieved.

[Effect of idea]

In the lighting equipment of this invention, a notch is provided in the protrusion on the periphery of the mounting surface of the fixture body, so even if water infiltrates inside the protrusion, it can easily flow out from the notch. Prevents water from accumulating inside. Therefore, it is possible to prevent water from entering the inside of the device body through holes provided in the mounting surface of the device body, and the waterproofness is improved. In addition, since only a part of the circumference is provided with a missing part and a protrusion is formed on the periphery, the instrument body will not be deformed due to uneven tightening pressure due to the mounting screws, etc. of the instrument body. The effect is that there is no

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of one embodiment of this invention, FIG. 2 is a perspective view looking up from below, and FIG. 3 is a perspective view of a conventional example. 1... Appliance body, 2, 3... Waterproof packing,
4... protrusion, 5... missing part, 8, 9... annular protrusion.

Claims (1)

[Scope of utility model registration request] A lighting fixture in which a protrusion is provided on the periphery of the mounting surface that is pressed against the construction material through the waterproof packing of the fixture body, and a notch is formed in a part of the circumferential direction of the protrusion.