JP2556221Y2 - lighting equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for illuminating a lower part of a ceiling light, such as a downlight, and more particularly to a lighting device capable of mounting the lighting device in a ceiling mounting hole from inside.

[0002]

2. Description of the Related Art A lighting device for illuminating a lower portion such as a downlight usually includes a cup-shaped reflecting mirror surrounding a lamp.
The light from the lamp is reflected downward by the reflecting mirror, so that the light from the lamp is effectively used. Such luminaires are usually used buried in mounting holes formed in the ceiling in order to prevent projections from being formed in the room, but since the mounting is performed from the indoor side, the mounting fixture is exposed to the indoor side. There was a problem to do. Therefore, there has been a demand for a lighting fixture that can be attached from the inside of a room even though the fixture for the lighting fixture is located behind the ceiling, that is, above the ceiling.

In order to satisfy such a demand, Japanese Utility Model Application
No. 61779 and Japanese Utility Model Application Laid-Open No. 63-50407 (Japanese Utility Model Application No. 61-144681) are disclosed. For example, Japanese Utility Model Laid-Open Publication No. Sho 51-61779 discloses a spring comprising a lateral hole and a window directly above the light box, a projection formed on the top surface, and a two-legged spring which is inserted into the lateral hole and fully opened. This is a recessed lamp mounting device equipped with a flexible mounting bracket.

[0004]

However, in such a lighting fixture mounting structure, after mounting the lighting fixture main body, the mounting bracket is inserted into the back of the ceiling from the opening of the main body, and this is groped to the main body by groping. Had to be installed. Such mounting is often incomplete because it is not visible.
Lighting equipment could move or fall. Also,
The main body mounting portion of such a lighting fixture has a vertical cylindrical shape, and the fitting or fixture is fixed to a smooth vertical surface by friction, so that the lighting fixture may move or drop due to vibration or insufficient tightening. .

Accordingly, an object of the present invention is to provide a lighting fixture that can be inserted into a ceiling mounting hole with a mounting bracket attached to a main body, and can be securely fixed from the inside of a room. It is to provide a possible lighting fixture.

[0006]

According to the present invention, there is provided a lighting apparatus embedded in a mounting hole in a ceiling, comprising a main body in which a socket for mounting a lamp is fixed. The main body includes a hollow cylindrical portion having an outer dimension substantially equal to an opening dimension of the mounting hole, and an upper portion provided at an upper portion of the hollow cylindrical portion and having a maximum outer dimension smaller than the mounting hole size. Has at its lower end a flange portion at least partially larger than the opening dimension, and the upper portion has a plurality of inclined surfaces inclined inwardly upward and a long hole extending in the axial direction along the inclined surface. And further, an elongated elastic slide plate slidably provided along the long hole,
There is provided a lighting fixture comprising: fastening means capable of sliding and fixing the slide plate along the elongated hole from the inside of the main body.

[0007] Further, the inclined surface has a plurality of grooves extending horizontally on the surface thereof, and the slide plate has an upper portion having an upper end bent toward the lamp and a tongue having an upper end bent toward the lamp. A central part having a lower part extending downward, wherein the fastening means comprises a female screw hole provided in the central part, and a male screw screwed into the female screw hole through the elongated hole from the inside of the main body, Is preferred.

[0008] It is preferable that the apparatus further comprises a frame part which is engaged with the flange portion of the hollow cylindrical portion and has an outer dimension larger than an opening dimension of the mounting hole and an inner diameter dimension substantially equal to the opening dimension.
In addition, the hollow cylindrical portion is cylindrical, and has a projection at least partly larger than the size of the mounting hole on the outer periphery in order to engage with the mounting hole in the ceiling and prevent rotation of the main body,
Is preferred.

[0009]

According to the configuration of the present invention, the slide plate is slid upward and inward from the inside of the main body along the long hole of the inclined surface until the slide plate does not interfere with the mounting hole of the ceiling. The slide plate is slid downward and outward along the long hole of the inclined surface, and the flange of the hollow cylindrical portion and the slide plate sandwich the periphery of the ceiling mount hole, and the lighting fixture is inserted. Can be embedded in the ceiling mounting hole.

Further, the inclined surface has a groove extending horizontally, and the lower end of the slide plate extends around the mounting hole of the ceiling in a state where the upper end of the upper portion of the slide plate and the upper end of the tongue at the center contact the groove. Since the slide plate is sandwiched, it is difficult for the slide plate to come off the groove, and therefore, the slide plate can be securely fixed at any position along the long hole of the inclined surface. Accordingly, there is provided a lighting fixture that can be inserted from the inside, in which the lighting fixture can be inserted into the mounting hole in the ceiling with the mounting bracket attached to the main body, and the lighting fixture can be securely fixed from the inside of the room.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side sectional view of a lighting device according to the present invention. In this figure, reference numeral 10 denotes a ceiling on which the lighting fixture is mounted, and the main body of the lighting fixture is embedded in the opening of the ceiling 10. The main body includes a hollow cylindrical portion 20 whose outer dimension is substantially equal to the opening size of the mounting hole of the ceiling 10, and an upper portion 30 provided above the hollow cylindrical portion 20 and having a maximum outer dimension smaller than the mounting hole size.

The hollow cylindrical portion 20 has at its lower end a flange 22 at least partially larger than the opening size. Further, the hollow cylindrical portion 20 may be cylindrical or rectangular, but in the case of the cylindrical shape, at least a part thereof is larger than the size of the mounting hole in order to engage with the mounting hole in the ceiling and prevent rotation of the main body. Protrusion 24
On the outer periphery. The upper portion 30 of the main body has a plurality of inclined surfaces 32 inclined upward and inward, and a long hole 34 extending axially along the inclined surfaces. The inclined surface 32 is provided with a plurality of horizontally extending grooves 32a on its surface. The cross-sectional shape of the groove 32a is preferably composed of a combination of horizontal and vertical as shown, but may be other shapes, for example, a mountain shape, a waveform, or a saw blade shape.

Further, an elongated elastic slide plate 40 is slidably provided along each of the long holes 34 of the main body. The slide plate 40 has an upper portion 42 whose upper end is bent toward the lamp and a tongue portion 44 whose upper end is bent toward the lamp.
And a lower part 46 extending downward.
The slide plate 40 is preferably made of a highly elastic spring material, fiber reinforced plastic, or the like.

Further, there is provided a fastening means 50 capable of sliding and fixing the slide plate 40 along the elongated hole 34 from the inside of the main body. The fastening means 50 may be any known means, and includes a female screw hole 48 provided at the center of the slide plate 40 and a female screw hole 48 through the elongated hole 34 from the inside of the main body.
And the external thread 52 that is screwed into the connector. The female screw hole 48 may be formed directly in the slide plate 40, or an appropriate nut may be fixed to the slide plate 40.
The external thread 52 is preferably a thumbscrew.

At the lower end of the hollow cylindrical portion 20, there is provided a frame part 26 which engages with the flange 22 of the hollow cylindrical portion 20 and whose outer dimension is larger than the opening dimension of the mounting hole and whose inner diameter dimension is substantially equal to the opening dimension. Is provided. It is desirable that the frame part 26 fits into the flange 22 of the hollow cylindrical part 20 as shown in the figure, and that the lower surface thereof coincides with the lower end of the hollow cylindrical part 20. With the above-described configuration, the slide plate is slid upward and inward from the inside of the main body along the long hole of the inclined surface, and the main body is inserted into the mounting hole until the slide plate does not interfere with the mounting hole of the ceiling, and then ,
Slide the slide plate downward and outward along the long hole of the inclined surface, sandwich the periphery of the ceiling mounting hole between the flange at the center and the slide plate, and embed the lighting fixture in the ceiling mounting hole. Can be.

Further, the inclined surface has a horizontally extending groove, and the lower end of the slide plate extends around the mounting hole of the ceiling in a state where the upper end of the upper portion of the slide plate and the upper end of the tongue at the center contact the groove. Since the slide plate is sandwiched, it is difficult for the slide plate to come off the groove, and therefore, the slide plate can be securely fixed at any position along the long hole of the inclined surface. FIG. 2 is another side sectional view of the lighting fixture according to the present invention.

At the top of the upper part 30 of the body is a lamp 1
2 is mounted inside. The lamp 12 is normally mounted downward so as to illuminate the lower surface of the lighting fixture as shown, but may be mounted diagonally to the main body. In addition, an arbitrary lamp 12,
For example, the lamps 12a and 12b with a reflective surface or the lamps 12c without a reflective surface can be attached.

The inner surface of the upper portion 30 of the main body is provided with a plurality of vertical surfaces 36, on the surface of which are provided a plurality of grooves extending horizontally. The cross-sectional shape of the groove may be an arbitrary shape, for example, a mountain shape, a waveform, or a saw blade shape. When using a lamp 12c without a reflective surface,
Separately, a reflector 52 is mounted inside the luminaire.
The reflecting mirror 52 includes a spherical surface 52a centered on a light emitting portion of the spherical lamp 12c, and a reflecting surface 52b for reflecting light from the light emitting portion downward. At the top of the reflector 52, a lamp 12
A circular opening is provided so as to pass through. This opening is located below the attachment of the lamp 12 to the socket 54. The opening is provided with a rectangular notch (not shown) at a position facing the opening. The reflecting mirror 52 includes:
It is better to replace the lamp as appropriate according to the lamp to be used.

For mounting the reflecting mirror 52, two mounting plates 60 for the reflecting mirror are provided. The mounting plate 60 is a substantially rectangular thin plate having one end folded in a U-shape.
It is preferably made of a highly elastic spring material or a fiber reinforced plastic. The U-shaped portion of the mounting plate 60, that is, the folded end, is narrower than the notch in the opening of the reflecting mirror 52, and is dimensioned so as to sandwich the inner end and fix the mounting plate 60 to the opening. I have. The length of the mounting plate 60 is longer than the length connecting the inner end of the notch of the circular opening of the reflecting mirror 52 at a predetermined position and the groove of the vertical surface 36 of the inner surface of the main body at a lower position. .

With the above-described structure, when the lamp is removed, the folded ends of the plurality of mounting plates 60 are fixed to the inner ends of the openings of the reflecting mirror 52, and the reflecting mirror 52 is pushed inward along the axis of the main body. The outer end of the mounting plate 60 is a vertical surface 36 of the inner surface of the main body.
The plurality of mounting plates 60 are slightly bent and project from each other, and the reflecting mirror 52 can be mounted at the center position.

Conversely, the reflector can be removed by removing the lamp, inserting a finger through the circular opening at the top of the reflector 52, and removing the mounting plate 60 from the groove of the vertical surface 36 on the inner surface of the main body. . In addition, since the circular opening at the top of the reflector can be formed below the mounting portion of the lamp socket, the surrounding portion of the mounting portion can be sufficiently cooled without surrounding the mounting portion of the lamp socket.

[0022]

[Effect of the Invention] The present invention is configured as described above.
A lighting fixture can be provided that can be inserted from the inside, in which the lighting fixture can be inserted into a ceiling mounting hole with the mounting bracket attached to the main body, and the lighting fixture can be securely fixed from inside the room.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a lighting device according to the present invention.

FIG. 2 is another side sectional view of the lighting fixture according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ceiling 12 Lamp 20 Hollow cylindrical part 22 Flange part 26 Frame part 30 Upper part 32 Inclined surface 32a Groove 34 Slot 36 Vertical surface 40 Slide plate 42 Upper part 44 Tongue part 46 Lower part 50 Fastening means 52 Thumb screw 54 Socket 60 Mounting plate

Claims (4)

(57) [Scope of request for utility model registration] 1. A lighting fixture buried in a mounting hole in a ceiling, comprising: a main body in which a socket for mounting a lamp is fixed, wherein the main body has an outer dimension substantially equal to an opening dimension of the mounting hole. A hollow portion provided at an upper portion of the hollow cylindrical portion and having a maximum outer dimension smaller than the dimension of the mounting hole. The hollow cylindrical portion has a flange at a lower end at least partially larger than the opening size. The upper portion includes a plurality of inclined surfaces that are inclined upward and inward, and the inclined surfaces are formed with long holes extending in a direction along the inclination, and a slide plate that is disposed outside the main body. And a fastening means for sliding the slide plate from the inside of the main body along the long hole and fixing the slide plate to the main body, wherein the inclined surface is horizontally provided on the surface thereof. Having a plurality of extending grooves Luminaire said slide plate, said bent toward the upper portion, provided with engagable upper end in the groove of the inclined surface, it is characterized. 2. The slide plate according to claim 1, wherein the slide plate includes a tongue bent toward the upper portion and having an upper end engageable with the groove of the inclined surface. lighting equipment. 3. A frame component having an outer dimension larger than the mounting hole and an inner dimension substantially equal to the mounting hole, and a flange of the hollow cylindrical portion is engaged with an inner edge of the frame component. The lighting apparatus according to claim 1, wherein the lighting apparatus is configured to perform the following. 4. The hollow cylindrical portion has a cylindrical shape, and has a projection for engaging with a mounting hole of the ceiling to prevent rotation of the main body. 2
The lighting fixture according to 1.