JP2013045709A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of applying light in a desired direction even when there is a limit in an installation space.SOLUTION: An adaptor 40 having a lower face 42 of a slope is installed between a lamp body 31 on which an LED unit 34 of a light source is installed and the LED unit 34, thereby, light can be irradiated in a direction different from the installation direction of the lamp body 31. By this arrangement, even when there is an obstacle in the installation space of a ceiling rear side or the like, the lamp body 31 can be installed so as to apply light in a desired direction, while avoiding interference with the obstacle.

Description

  The present invention relates to a lighting apparatus that has an LED unit as a light source and irradiates a predetermined direction.

Conventionally, a downlight or the like that has an LED unit as a light source and emits light in a predetermined direction is known (for example, see Patent Document 1).
As shown in FIG. 6, in the lighting fixture 100 described in Patent Document 1, a substantially disk-shaped LED unit 103 on which the LEDs 102 are mounted is housed inside the fixture body 101. The LED unit 103 is attached to the instrument main body 101 via the movable part 104.

  The movable portion 104 includes an upper movable portion 105 and a lower movable portion 106 that are coupled to each other so as to be relatively rotatable by a rotation shaft 107. The upper movable part 105 and the lower movable part 106 have inclined surfaces that are in sliding contact with each other, and adjust the illumination direction of the LED unit 103 by rotating the upper movable part 105 and the lower movable part 106.

Japanese Patent No. 4512653 (FIG. 1)

By the way, in the normal downlight 110 as shown in FIG. 7, the heat dissipating fin 112 for radiating the heat generated by the LED unit is integrally provided in the fixture main body 111 that houses the LED unit. The heat radiation fin 112 is provided with a power supply device 113 that supplies lighting power to the LED unit orthogonal to the heat radiation fin 112. A frame body 114 is attached to the lower side of the instrument main body 111, and an attachment spring 115 for attaching the downlight 110 to a ceiling or the like is provided on the frame body 114.
Therefore, when irradiating light in a desired direction using the downlight 110, the downlight 110 is generally attached in the irradiation direction.
However, when the downlight 110 is mounted in the irradiation direction, there is a problem that the radiating fins 112 and the power supply device 113 may not fit in the mounting space.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus that can irradiate light in a desired direction even when the installation space is limited.

  The lighting fixture of the present invention includes an LED unit that is a light source, and a lamp body to which the LED unit is attached, and an adapter having an inclined surface is provided between the lamp body and the LED unit. .

  Moreover, as for the lighting fixture of this invention, the said adapter is rotatable with respect to the said lamp main body.

  Furthermore, in the lighting fixture of the present invention, the lamp body and the adapter are attached to be inclined, the adapter and the LED unit are attached in parallel, and the adapter is rotatable.

  In the present invention, since an adapter having an inclined surface is provided between the LED unit and the lamp body to which the LED unit as a light source is attached, light can be emitted in a direction different from the mounting direction of the lamp body, Even when there is an obstacle in the installation space, it is possible to provide a lighting apparatus having an effect that the lamp body can be attached so as to irradiate light in a desired direction while avoiding interference with the obstacle.

The whole perspective view of the lighting fixture of 1st Embodiment which concerns on this invention The disassembled perspective view of the lighting fixture of 1st Embodiment which concerns on this invention Whole perspective view which shows another example of the lighting fixture of 1st Embodiment which concerns on this invention Sectional drawing which shows another example of the lighting fixture of 1st Embodiment which concerns on this invention. (A) is the disassembled perspective view of the lighting fixture of 2nd Embodiment which concerns on this invention, (B) is the disassembled perspective view which reversed the adapter in the lighting fixture of 2nd Embodiment which concerns on this invention. Exploded perspective view of a conventional lighting fixture Side view of a conventional downlight

(First embodiment)
Hereinafter, the lighting fixture of 1st Embodiment which concerns on this invention is demonstrated using drawing.
As shown in FIG. 1, a lighting apparatus 10 according to an embodiment of the present invention is embedded in a ceiling surface 11 that is a mounted portion and attached, for example, a wall surface (illustrated) orthogonal to the ceiling surface 11 (see FIG. 4). (Omitted) etc. are illuminated.

As illustrated in FIGS. 1 and 2, the lighting fixture 10 includes a frame body 20 attached to the ceiling surface 11 (see FIG. 4) and a lamp 30 supported by the frame body 20.
The frame body 20 has a cylindrical frame body 21 fitted into the mounting hole 12 (see FIG. 4) of the ceiling surface 11, and has a flange 22 that contacts the lower surface of the ceiling at the lower end of the frame body 21. . A plurality (for example, three) of attachment springs 23 for attaching the frame 20 to the ceiling surface 11 are provided on the outer surface of the frame body 21 at a predetermined interval. The attachment spring 23 is always biased downward (in the direction of arrow A in FIG. 1).
Therefore, the frame body 20 is fixed to the ceiling surface 11 by sandwiching the ceiling surface 11 between the flange portion 22 and the attachment spring 23.

On the front side (downward in FIG. 1) of the frame body 21, an extending portion 24 having an opening 25 that is circular toward the irradiation direction inclined with respect to the ceiling surface 11 is integrally provided. The extending portion 24 can have a shape imitating a part of a sphere. Alternatively, a cylindrical shape can be used.
In addition, a space in which the distal end portion (lower portion) of the lamp 30 can be accommodated is provided in the extended portion 24.

The lamp 30 includes a lamp body 31 having a large number of heat radiation fins 311 in the vertical direction. Therefore, the heat generated by the LED unit 34 is transmitted to the radiation fins 311 and radiated.
A power supply device 32 extending in a direction orthogonal to the lamp body 31 is attached to the rear part (upper part) of the lamp body 31.
Here, the power supply device 32 is provided so as to protrude on the opposite side (right side in FIGS. 1 and 2) from the light irradiation direction described later. That is, it is suitable when there is an obstacle or the like on the light irradiation direction side of the mounting hole 12.
The lamp 30 has the same configuration as a lamp in a normal downlight that has been conventionally used, and a conventional lamp can be used.

The adapter 40 is rotatably attached to the front surface (lower surface) 312 of the lamp 30 by the rotation shaft 33. The front surface 312 of the lamp 30 has a substantially circular shape, and the upper surface 41 of the adapter 40 has a substantially circular shape corresponding to the front surface 312 of the lamp 30. Therefore, the adapter 40 can rotate at an arbitrary angle with respect to the lamp 30.
The lower surface 42 (see FIG. 4) of the adapter 40 is inclined with respect to the upper surface 41, and the adapter 40 has a wedge shape as a whole.
Accordingly, the lower surface 42 has an oval shape, but the lower surface 42 of the adapter 40 is provided with a mounting portion protruding outward on the same surface, and the adapter 40 is fixed to the extending portion 24 by a mounting screw 43. Is done.

On the lower surface 42 of the adapter 40, an LED unit 34 and a reflecting plate 35, which are light sources, are attached. That is, as described above, the lower surface 42 of the adapter 40 has an oval shape, but the LED unit 34 and the reflecting plate 35 can be circular. A front panel 36 is attached to the front surface of the reflecting plate 35.
Therefore, the LED unit 34, the reflecting plate 35, and the front panel 36 that are conventionally used can be used.
Thereby, the light emitted from the LED unit 34 is irradiated obliquely in a direction orthogonal to the lower surface 42 of the adapter 40 to illuminate the walls and the like.

3 and 4 show the case where the power supply device 32 is provided so as to protrude toward the light irradiation direction side (left side in FIGS. 3 and 4) in the lighting fixture 10 described above. This is suitable when there is an obstacle or the like on the side opposite to the light irradiation direction of the mounting hole 12.
Other configurations are the same as those described above with reference to FIGS.

As mentioned above, according to the lighting fixture 10 of 1st Embodiment which concerns on this invention demonstrated, it has the lower surface 42 which is an inclined surface between the lamp main body 31 to which the LED unit 34 which is a light source is attached, and the LED unit 34. FIG. An adapter 40 is provided. Thereby, light can be irradiated in a direction different from the mounting direction of the lamp body 31.
For this reason, even when there is an obstacle in the installation space such as the back of the ceiling, the luminaire 10 can be attached so as to emit light in a desired direction while avoiding interference with the obstacle.

  Moreover, since the adapter 40 can rotate with respect to the lamp main body 31, the irradiation direction of the LED unit 34 attached to the adapter 40 can be adjusted.

(Second Embodiment)
Next, the lighting fixture of 2nd Embodiment which concerns on this invention is demonstrated.
In addition, the same code | symbol is attached | subjected to the site | part which is common in the lighting fixture 10 which concerns on 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.
5A and 5B show a case where the front surface 312B of the lamp main body 31B is inclined with respect to the axis CL of the lamp main body 31B.
Accordingly, the front surface 312B of the lamp body 31B is generally elliptical.

5A, the adapter 40B is attached so that the front surface 312B of the lamp body 31B and the upper surface 41B of the adapter 40B are in contact with each other. Therefore, the upper surface 41B of the adapter 40B has an elliptical shape corresponding to the front surface 312B of the lamp body 31B.
Here, the fact that the adapter 40B is rotatable with respect to the lamp main body 31B means that it can be attached by being rotated (inverted) by 180 degrees since it is elliptical (see FIG. 5B).
Note that the lower surface 42B of the adapter 40B is circular, and the LED unit 34 and the like attached to the lower surface 42B can be circular ones that have been conventionally used.

As described above, according to the lighting fixture 10B of the second embodiment according to the present invention described above, the lamp body 31B and the adapter 40B are attached to be inclined and the adapter 40B is rotatable. For this reason, even when the front end of the lamp body 31B is inclined and has an elliptical shape, the adapter 40B can be reversed and attached.
The adapter 40B and the LED unit 34 are attached in parallel.

  In addition, the lighting fixture of this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

10, 10B Lighting fixture 31, 31B Lamp body 34 LED unit 40, 40B Adapter 41B Upper surface (inclined surface)
42 Lower surface (inclined surface)

Claims (3)

An LED unit as a light source;
A lamp body to which the LED unit is attached,
The lighting fixture which provided the adapter which has an inclined surface between the said lamp body and the said LED unit. The lighting fixture according to claim 1,
The adapter is a lighting fixture that is rotatable with respect to the lamp body. The lighting fixture according to claim 1,
The lamp body and the adapter are mounted with an inclination, and the adapter and the LED unit are mounted in parallel,
A luminaire in which the adapter is rotatable.

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