JP4419059B2 - Recessed ceiling lighting fixture - Google Patents

Description

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

  In general, this type of ceiling-mounted lighting fixture is desired to have a structure that does not impair the design as compared with a general-type ceiling lighting fixture that is not provided with a sensor.

  In such a ceiling-embedded lighting fixture, a projection is provided on the inner surface of the light projection opening of the reflector surrounding the light source, and a sensor detection unit is provided on the projection so that a general-type ceiling-embedded illumination is provided. A technique that can be used with substantially the same image as an instrument is known (for example, see Patent Document 1).

And in the said prior art, adjustment means, such as an adjustment switch which adjusts lighting holding time which makes a light source light based on a detection signal from a sensor detection part, is arranged in an inner surface of a reflector, and an adjustment means is installed after installation. It is also disclosed that it can be manipulated.
JP 2002-157916 A (page 2-4, FIG. 1)

  However, the conventional technique has a problem in that the impression given to the user is not preferable because the adjusting means may be visible from the projection opening of the reflector.

  Further, as described in Patent Document 1, even if the adjusting means is provided behind the glare cut angle of the reflector so that it cannot be seen from the normal line of sight of the user in the mounted state, the adjusting means Since light from a light source is directly applied to the light source, there is a risk of deterioration due to the influence of ultraviolet rays, heat, and the like.

  The present invention has been made in view of the above points, and provides a ceiling-embedded lighting fixture that can improve the design and protect the adjustment switch while providing the sensor detection portion inside the reflector. With the goal.

Ceiling luminaires of claim 1, wherein the instrument body and to be embedded in a ceiling; and having a projection at one side opening and the other end to a light source insertion hole, the light-projecting opening when viewed from the light projecting opening side A reflection plate having a sensor unit opening formed in an inner portion ; a light source provided in the reflection plate through a light source insertion hole of the reflection plate; a sensor detection unit on the lower side, and above the sensor detection unit adjustment switch laterally side has a sensor unit body provided with a certain, sensor detection section, an inner of the sensor unit opening of the reflector, provided on the outside of the light projecting opening The adjustment switch for adjusting the lighting holding time for turning on the light source based on the detection signal from the sensor detection unit has the unit body attached to the sensor unit opening of the reflection plate so as to be positioned outside the reflection plate. Senyu Is characterized by comprising; Tsu bets and.

According to ceiling luminaires of claim 1, by adjusting switch to adjust the turn-on duration is an inner ceiling, provided so as to be positioned outside of the reflection plate with a higher than the sensor detection unit As a result, when the user sees the inside of the reflector through the light projection opening in the mounting state of the fixture body, the adjustment switch is not visible, so that the design can be improved and more general-type ceiling-embedded illumination Can be used with images close to the instrument.

  In addition, since the light from the light source is not directly applied to the adjustment switch, it is possible to suppress the deterioration of the adjustment switch due to the influence of the light emitted from the light source, the heat in the reflection plate, and the like.

A ceiling-embedded lighting fixture according to a second aspect is the lighting fixture according to the first aspect, wherein the reflector and the sensor unit are formed so as to be detachable integrally with the fixture main body.

  According to the lighting device of claim 2, in addition to the operation and effect of claim 1, the reflector, the sensor detection unit, and the adjustment switch are formed so as to be detachable integrally with the device body, thereby operating the adjustment switch. In this case, it is possible to operate the adjustment switch near the operator by removing the reflector from the instrument body, and the adjustment switch can be easily operated.

  Further, since the adjustment switch can be operated near the worker, workability and safety at a high place can be improved.

  According to the ceiling-embedded lighting fixture of claim 1, a fixture main body embedded in the ceiling; a reflector having a light projection opening on one end side and a light source insertion hole on the other end side; A light source provided in the reflection plate through a light source insertion hole of the reflection plate; a sensor detection unit provided inside the projection opening and facing outward of the projection opening; from the sensor detection unit Adjusting the lighting holding time for turning on the light source on the basis of the detection signal and providing an adjustment switch provided at a position inside the ceiling and invisible from the inside of the reflector. However, since the adjustment switch is not visible when the inside of the reflector is viewed from the light projection opening in the mounting state of the fixture body, it is possible to improve the design and use the image closer to a general-type ceiling-mounted lighting fixture can do.

  In addition, since the light from the light source is not directly applied to the adjustment switch, it is possible to suppress the deterioration of the adjustment switch due to the influence of the light emitted from the light source, the heat in the reflection plate, and the like.

  According to the ceiling-embedded lighting fixture of claim 2, in addition to the effect of claim 1, the sensor detection unit and the adjustment switch are attached to the reflection plate so that the adjustment switch is located outside the reflection plate. In addition, the reflector, sensor detector, and adjustment switch are formed so as to be detachable from the instrument main body, so that when the adjustment switch is operated, the reflector can be removed from the instrument main body and adjusted near the operator. The switch can be operated and can be easily operated.

  Further, since the adjustment switch can be operated near the worker, workability and safety at a high place can be improved.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  1 is a front cross-sectional view showing a state in which a part of the lighting fixture of the present embodiment is cut out, FIG. 2 is a bottom view showing the main part of the lighting fixture of FIG. 1, and FIG. 3 is a ceiling view of the lighting fixture of FIG. FIG. 4 is an explanatory view showing a state in which the reflection plate is removed from the lighting apparatus of FIG. 1.

  As shown in FIGS. 1 and 3, a lighting fixture 1 that is a ceiling-embedded lighting fixture includes a fixture main body 10, a socket 2, a light source 3, a reflecting plate 5, and a sensor unit 6. Most of them are embedded in the ceiling plate 7 through the embedded holes 71 formed in the above.

The instrument body 10 is provided with a holding spring 8 and a socket 2 that are engaged with and held by a reflection plate 5 described later on the upper side, and a top plate 11 that extends in the lateral direction of the socket 2. Then, the top plate 11, the lighting device electrical unit goods storage box 12 housed in a light source such as 3, the terminal block 13 is provided further horizontal storage box 12.

  The instrument body 10 has three support columns 14 in a downward direction from the top plate 11, and a frame portion 19 that is engaged with an edge portion of the embedding hole 71 of the ceiling plate 7 is provided on the lower end side thereof. Therefore, the main body portion 10A is formed in a substantially cylindrical shape.

  In addition, the fixture body 10 has a groove portion 17 provided with an attachment spring 18 for attaching and fixing the lighting fixture 1 to the ceiling board 7 on two of the posts 14A. Further, the top plate 11 is provided with a fall prevention tool 15 for the reflection plate 5 made of a chain.

  The reflecting plate 5 has a substantially bell shape in which a light projecting opening 51 is formed on one end side which is the lower side, and a light source insertion hole 54 is formed on the other side which is the upper side. 8 is provided to protrude in the circumferential direction. Furthermore, a sensor unit opening 52 is formed to cut out a part of the reflecting plate 5 in a slit shape and project a sensor unit 6 described later on the inside of the reflecting plate 5.

  The sensor unit 6 is provided with a sensor detection unit 61 in the unit main body 60 and an adjustment switch 62 for adjusting a lighting holding time for turning on the light source 3 based on a detection signal from the sensor detection unit 61.

  The sensor detection unit 61 is provided so as to protrude downward from the unit main body 60, and is provided inside the light projection opening 51 of the reflection plate 5 so as to face the light projection opening 51. Yes. The adjustment switch 62 is above the sensor detection unit 61, from the sensor unit opening 52 of the reflection plate 5 to the outside 55 of the reflection plate 5, and inside the frame portion 19 of the instrument body 10. It is provided in the unit main body 60 so that it may be located in. This adjustment switch 62 can change the lighting holding time of the light source 3 by sliding up and down (see the dotted line shown in FIG. 1).

  The sensor unit 6 is fixed to the reflecting plate 5 by a sensor unit mounting bracket 63. One end of the sensor unit mounting bracket 63 is attached by welding or the like to the joint 60 that is outside the reflector plate 5 above the sensor unit opening 52, and the other end is formed with a bent portion. The sensor unit main body 6 is fixed by a screw 64 in the part.

  The light source 3 is a fluorescent lamp, in which a plurality of glass tubes having translucency are formed in a U shape to form one discharge path, and a phosphor film is formed on the inner surface of the glass tube. As it is formed, a predetermined amount of mercury, rare gas, or the like is sealed in the glass tube. A base 31 is provided at one end of the glass tube.

  Here, the attachment state to the ceiling board 7 of the lighting fixture 3 of this embodiment and the state which removed the reflecting plate 5 from the fixture main body 10 are demonstrated with reference to FIG.

  As shown in FIG. 3, the lighting fixture 1 is embedded in the ceiling plate 7 so that the frame portion 19 is positioned around the edge of the embedding hole 71 of the ceiling plate 7. At this time, the mounting spring 18 slides in the groove portion 17 and the tip of the mounting spring 18 is positioned on the surface of the ceiling plate 7 so that the lighting fixture 1 is fixed.

  Thus, in the state where the lighting fixture 1 is disposed on the ceiling plate 7, the inner side 53 of the reflecting plate 5 is viewed from the user through the light projection opening 51 as shown in FIG. 2. Therefore, when the user looks up at the luminaire 1, the light source 3 and the sensor detection unit 61 are visible on the inner side 53 of the reflector 5, but the adjustment switch 62 is not visible.

  Next, when adjusting the adjustment switch 62, as shown in FIG. 4, a downward force is applied to the reflecting plate 5 accommodated in the main body 10A of the instrument main body 10. Then, when the holding spring 8 is moved outward, the locking between the holding spring 8 and the locking portion 56 of the reflecting plate 5 is released, and only the reflecting plate 5 can be removed from the lighting fixture 1. And since the sensor unit 6 is being fixed to the reflecting plate 5, the sensor unit 6 will also move below with the reflecting plate 5, and the adjustment switch 62 located in the outer side 55 of the reflecting plate 5 can be visually observed from an operator. Thus, the user can adjust the adjustment switch 62 as appropriate.

  After the adjustment switch 62 is adjusted, the reflector 5 is lifted upward to engage the locking portion 55 and the holding spring 8, and the reflector 5 is fixed to the lighting fixture 1 again to complete the operation.

In addition, when removing the reflecting plate 5, since one end of the fall prevention tool 15 is attached to the reflecting plate 5, the reflecting plate 5 is not completely dropped.

  According to this embodiment, since the adjustment switch 62 is provided in the lighting fixture 1 so as to be positioned on the outer side 55 of the reflecting plate 5, the light projection opening can be provided when the user attaches the lighting fixture 1 to the ceiling plate 7. Since the adjustment switch 62 cannot be seen when viewing the inside 53 of the reflector 5 from 51, the design can be improved.

  Further, since the irradiation light from the light source 3 is not directly applied to the adjustment switch 62, deterioration due to ultraviolet rays or the like can be prevented. Further, since there is no thermal influence in the reflector plate that is heated by the heat of the light source 3, deterioration due to heat can be prevented. Thereby, since the freedom degree of selection of the constituent material of the adjustment switch 62 increases, manufacturing cost can also be suppressed.

Further, since the form scan Li Tsu bets like sensor unit opening 52 in the reflecting plate 5 so as to position the adjustment switch 62 on the outside 55 of the reflector 5, the inside of the sensor unit opening 52 near the reflecting plate 5 53 It ’s easier for the heat to escape. Therefore, it is possible to prevent various electric components housed in the unit main body 60 of the sensor unit 6 provided inside the reflecting plate 5 from being defective due to the temperature in the reflecting plate 5.

  On the other hand, in the technique described in Patent Document 1, for example, when the adjustment switch 62 is to be operated, the operator inserts his / her hand inside the reflector 5 while the reflector 5 is fixed to the lighting fixture 1. Therefore, it becomes work at a higher place, which is troublesome and not safe.

  On the other hand, this embodiment removes the reflecting plate 5 from the lighting fixture 1 when operating the adjustment switch 62 because the reflecting plate 5 and the sensor unit 6 are formed so as to be removable from the lighting fixture 1 integrally. As a result, the adjustment switch 62 can be operated near the operator, and therefore the operation of the adjustment switch 62 can be facilitated.

  Further, the adjustment switch 62 is provided so as to be positioned on the inner side of the frame portion 19 of the fixture body 10 while being on the outer side 55 of the reflector plate 5, so that when the reflector plate 5 is removed from the lighting fixture 1. Since the adjustment switch 62 does not interfere with the instrument body 10, workability is not reduced.

  Further, since the adjustment switch 62 can be operated closer to the operator than the ceiling plate 7, workability and safety at a high place can be improved.

  In the present embodiment, the adjustment switch 62 is provided on the reflection plate 5. However, for example, the adjustment switch 62 may be provided on the top plate 11 of the instrument body 10, and in that case, the sensor detection unit 61. May be connected via a wiring.

Front sectional drawing which shows the state which notched some lighting fixtures of 1st embodiment The bottom view which showed the principal part of the lighting fixture of FIG. 1 same as the above. The front view which shows the state which attached the lighting fixture of FIG. 1 same as the above to the ceiling Explanatory drawing which shows the state which removed the reflecting plate from the lighting fixture of FIG. 1 same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Lighting fixture, 10 ... Appliance main body, 3 ... Light source, 5 ... Reflecting plate, 61 ... Sensor detection part, 62 ... Adjustment switch

Claims (2)

An instrument body embedded in the ceiling;
A reflector having a light projection opening on one end side and a light source insertion hole on the other end side, and a sensor unit opening formed in a portion located inside the light projection opening when viewed from the light projection opening side ;
A light source provided in the reflector through the light source insertion hole of the reflector;
Sensor detection unit downward, than the sensor detection unit has a sensor unit body adjustment switch laterally side is provided with a top, the sensor detecting unit inside the sensor unit opening of the reflector The adjustment switch that is provided outside the light projection opening and adjusts the lighting holding time for turning on the light source based on the detection signal from the sensor detection unit is positioned outside the reflector. A sensor unit having a unit body attached to the sensor unit opening of the reflector;
A ceiling-embedded lighting fixture comprising:   2. The ceiling-embedded lighting fixture according to claim 1, wherein the reflector and the sensor unit are integrally formed and detachable from the fixture main body.

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