JP2007227190A - Embedded type ceiling illumination fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an embedded type ceiling illumination fixture in which a ceiling face is made simple and beautiful without decreasing an illumination range. <P>SOLUTION: This embedded type ceiling illumination fixture is equipped with an illumination fixture main body 1a installed by being embedded on a ceiling side, with a light source device 1b which is formed by having a center axis 1e, a plurality of light-emitting bodies 1d which are rotatably supported by the lower end side of this center axis, and a movable body 1f which moves along the center axis so as to open/close these light-emitting bodies against the center axial direction and which is housed in the illumination fixture main body, and with a driving device 1c to operate the movable body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a ceiling-mounted lighting fixture.

  2. Description of the Related Art Conventionally, a lighting fixture using a light emitting diode includes a main body portion that is embedded in a ceiling and a light source portion that is supported by a shaft on one side edge of a lower surface opening of the main body portion and can be opened and closed with respect to the main body portion. The light source has a number of white light emitting diodes. Some of the lower surface of the main body is provided with a lighting device for supplying power to the light source.

  An opening for embedding the main body is formed in the ceiling, and a locking tool is provided on the side surface of the main body, and the main body is embedded and attached to the ceiling by protruding the locking tool to the upper edge of the opening. Yes. Further, a substrate on which a large number of light emitting diodes are mounted is housed inside the light source unit, and a translucent lens for providing an appropriate light distribution is provided on the lower surface. The light source unit is closed with respect to the main body unit, and the light source unit is used in a state in which the horizontal posture is maintained.

  According to this type of lighting fixture, since the light source part covers the lower surface opening of the main body part, the appearance is good, and the light emitting elements such as light emitting diodes can be arranged uniformly in the light source part (Patent Document 1). Fig. 2).

In addition, as a lighting fixture that can irradiate various color lights and is lightweight and convenient in form, there is a technology of a folding surface lighting device. That is, a light emitting surface made of a semi-transparent plate extends in the vertical direction from one end (upper end) of the light emitting surface on which a plurality of semiconductor light emitting elements are arranged, while it is shorter in the vertical direction from the other end (lower end) of the light emitting surface. A first illuminating part in which a reflecting plate is obliquely provided on the light emitting surface from the extended support material to the translucent plate, and the first illuminating part and a symmetric second illuminating part are provided via a folding member. Thus, the light-emitting surface (semi-transparent plate) is folded inward (FIG. 1 of Patent Document 2).
JP 2002-117705 A JP 2002-270007 A

  In the luminaire of Patent Document 1, the light source part covers the lower surface opening of the main body part, so that the appearance is improved, but since a plurality of light emitting diodes can be seen on the ceiling surface, On the other hand, it may feel unsatisfactory.

  On the other hand, in the foldable planar illumination device of Patent Document 2, for the purpose of improving portability and the like, the first illumination unit and the symmetric second illumination unit are provided with a light exit surface (via a folding member). Although it has a structure that can be folded with the translucent plate inward, this folding type planar lighting device cannot change the device shape according to the purpose of use.

  An object of the present invention is to provide a ceiling-embedded lighting fixture that can make the ceiling surface clear without reducing the illumination range.

  The invention of claim 1 is a lighting fixture body embedded and installed on the ceiling side; a central axis, a plurality of light emitters movably supported on the lower end side of the central axis, and the light emitters in the direction of the central axis A movable body that moves along a central axis so as to be opened and closed, and a light source device that is housed in the luminaire main body; and a drive device that operates the movable body. Features.

  The central axis may be configured so that the movable body can move, and the cross-sectional shape or the like is not limited. Further, the plurality of light emitters can be opened and closed by being pivotally supported, for example, on the lower end side of the central axis and rotating in the central axis direction around the lower end side.

  Further, for example, a plurality of light emitting diodes are disposed in the light emitter. A plurality of the light emitters are provided radially from the central axis, and are opened and closed like an umbrella bone when the movable body operates. The movable body is operated by a driving device, which is generally a motor.

  According to a second aspect of the present invention, in the ceiling-embedded lighting fixture according to the first aspect, the light source device is accommodated in the lighting fixture main body by moving up and down.

  When the movable body is operated, the plurality of light emitters are closed, and the central axis is raised together with the closed light emitters, whereby the light source device is accommodated in the luminaire main body.

  According to a third aspect of the present invention, in the ceiling-embedded lighting fixture according to the first or second aspect, the driving device opens and closes the light emitter by moving the position of the movable body about the central axis, and emits light from the light emitter. It is characterized by controlling the light distribution of the emitted light.

  The light distribution changes depending on the degree of opening and closing of the light emitter. Although the movable body is operated by a driving device, this driving device may be disposed inside the movable body or may be installed outside.

  According to the first aspect of the present invention, when the light source device is not used, it can be accommodated in the luminaire body, so that the ceiling surface has a clean appearance, and when the light source device is used, the light source body is opened. Since the illumination range can be earned, the risk of a decrease in illuminance can be reduced.

  According to the invention of claim 2, since the light source device with the light emitter closed is raised, the light source device can be reliably accommodated in the luminaire main body.

  According to the invention of claim 3, since the light distribution can be changed according to the degree of opening and closing of the light emitter, an illumination space according to the purpose of use can be produced.

  Hereinafter, a ceiling-embedded lighting fixture showing an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partially sectional side view showing a storage state of a ceiling-embedded lighting fixture showing an embodiment of the present invention, FIG. 2 is a side view showing the usage state of the ceiling-embedded lighting fixture, and FIG. Similarly, FIG. 4 is a side view when the light source device is controlled to distribute light, FIG. 5 is a side view when the light source device is fully closed, and FIG. It is a perspective view of a body.

  In FIG. 1, a ceiling-mounted lighting device 1 is provided with a lighting device body 1 a embedded in the ceiling 2 side. When the lighting is not used, the light source device 1b is accommodated in the lighting fixture main body 1a, and the ceiling embedded lighting fixture 1 is not projected on the ceiling surface, so that the appearance is refreshing. On the other hand, when the ceiling-mounted lighting fixture 1 is used, the light source device 1b comes out of the lighting fixture main body 1a and illuminates the table 3 as shown in FIG. The light source device 1b is driven by the driving device 1c and descends. In this case, since the light source body 1d of the light source device 1b can be opened to increase the illumination range, the dining table 3 is not sufficiently illuminated to reduce the illuminance.

  As shown in FIG. 3, the light source device 1b of the ceiling-mounted lighting fixture 1 includes a central axis 1e, a plurality of light emitters 1d movably supported on the lower end side 1e1 of the central axis 1e, and the light emitter 1d. And a movable body 1f that moves along the central axis 1e. Furthermore, the movable body 1f and the light emitter 1d are pivotally supported via a link 1g. With this link mechanism, when the movable body 1f moves up and down along the central axis 1e, the plurality of light emitters 1d can be closed or opened.

  FIG. 3 shows a state where the plurality of light emitters 1d are fully opened. Therefore, the light emitted from the light emitter 1d can uniformly illuminate the lower part. If there are many light emitters 1d, they can be illuminated enough, but conversely, the weight increases and the light source device also becomes large. This is a preferable range.

  FIG. 4 shows a state in which a plurality of light emitters 1d are half-opened, and the illumination range and the illuminance directly below can be controlled by the opening / closing degree A of the light emitters 1d. You can control.

  This opening / closing degree A can be performed by how much the driving device 1c raises / lowers the movable body 1f.

  FIG. 5 shows a state in which the plurality of light emitters 1d are fully closed, and the movable body 1f is raised to the upper end side of the central axis 1e. In this state, the light source device 1b is raised by the driving device 1c and stored in the lighting fixture body 1a.

  FIG. 6 is a perspective view of the light emitter 1d, in which a plurality of light emitting diodes 1d1 are arranged on a straight line.

  Next, a ceiling-embedded lighting fixture showing another embodiment of the present invention will be described with reference to the drawings. FIG. 7 is a side view when a light source device of a ceiling-embedded lighting fixture showing another embodiment of the present invention is fully opened, FIG. 8 is a side view when the light source device similarly controls light distribution, and FIG. Similarly, it is a side view when the light source device is fully closed. Components that are the same as or correspond to the components of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIGS. 7 to 9, this embodiment differs from the above-described embodiment in that a plurality of light emitters 1d are aligned in the same direction. Since each of the plurality of light emitters 1d is pivotally supported, as shown in FIG. 8, the angle at which each light emitter 1d faces is different by controlling the degree of elevation of the movable body 1f. It is possible to secure ambient brightness while maintaining the illuminance directly under the lighting fixture. In other words, it is possible to illuminate the kitchen area while ensuring sufficient illuminance on the table, which is advantageous in terms of ease of use.

The partial cross section side view which shows the accommodation state of the ceiling-embedded lighting fixture which shows one Embodiment of this invention. The side view which similarly shows the use condition of a ceiling lighting fixture. Similarly, the side view when the light source device is fully opened. The side view when a light source device controls light distribution similarly. Similarly, the side view when the light source device is fully closed. The perspective view of a light-emitting body similarly. The side view when the light source device of the ceiling embedded lighting fixture which shows other embodiment of this invention is fully opened. The side view when a light source device controls light distribution similarly. Similarly, the side view when the light source device is fully closed.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Ceiling embedded lighting fixture, 1a ... Lighting fixture main body, 1b ... Light source device, 1c ... Driving device, 1d ... Light-emitting body, 1e ... Central axis, 1f ... Movable body.

Claims (3)

A lighting fixture body embedded in the ceiling;
A central axis, a plurality of light emitters movably supported on the lower end side of the central axis, and a movable body that moves along the central axis so as to open and close the light emitter relative to the central axis direction. A light source device housed in the luminaire body;
A driving device for operating the movable body;
A ceiling-embedded lighting fixture comprising:   2. The ceiling-embedded lighting fixture according to claim 1, wherein the light source device is housed in a lighting fixture main body by moving up and down.   The said drive device controls the light distribution of the light radiated | emitted from a light-emitting body by opening and closing a light-emitting body by moving the position of the said movable body in the said center axis | shaft. Recessed ceiling lighting fixture.

Images