JP2010153215A - Ceiling pendant lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling pendant lamp having a hanging structure wherein a wire and a harness are attractively banded together and durability against wear due to swinging or the like can be improved. <P>SOLUTION: A lighting fixture 1 (the ceiling pendant lamp) is hung by using a retaining section 4 for pulling out the harness 32 from a side opening 41 arranged on a side face of the retaining section 4 so as not to cause interference between the harness 32 and the wire 31 of the ceiling pendant lamp while the wire 31 and the harness 32 of the ceiling pendant lamp are banded together. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lighting fixture that is suspended from a ceiling.

As a general lighting application for home use, for example, there are various lighting fixtures such as a ceiling direct light (ceiling light), a ceiling hanging light (pendant light), a ceiling embedded light (downlight), etc. .
In recent years, lighting fixtures using LEDs have been developed and commercialized due to their improved luminous efficiency. Since the LED is a point light source, a plurality of LEDs can be arranged in an array or combined with a light guide or the like to greatly change the light emission mode, thereby providing variations in design.

Known suspension structures for ceiling hanging lamps include a structure in which a suspension wire and a harness (power cable) are separately provided, and a harness that reinforces the harness itself to eliminate the need for a wire (Patent Literature). 1, 2).
When the wire and the harness are separate, the user can see a plurality of lines, so the aesthetics are not excellent. This is because the wire and the lead-out portion of the harness from the ceiling mounting portion are formed separately, and the number of lines increases or decreases depending on the number of light sources and the weight of the lighting fixture. Especially in lighting fixtures with multiple light sources, such as chandeliers, and multiple transparent decorative members to produce a sense of luxury and transparency, the number of wires and harnesses must be increased. The beauty will be lost.

As a technique for improving this, it is conceivable to reinforce the harness so that wires are not used and the number of apparent wires is reduced.
However, since the load of the lighting fixture is directly applied to the harness portion, the weight limitation of the lighting fixture is provided in order to prevent the disconnection, but the failure due to the disconnection is still a problem. For this reason, it cannot be applied to a heavy luminaire such as the above chandelier.

JP 2000-11743 A JP-A-8-203315

The present applicant has studied to reduce the number of apparent lines by drawing the wire and the harness from the same site. According to this, since these cables can be bundled and held (bundled) at the lead-out portion of the wire and harness, the aesthetics are very excellent.
However, in this case, the harness is disconnected due to the relatively soft harness such as Cu having high conductivity and the wire formed of the wire having higher strength than the harness rub against each other when swinging during maintenance. I discovered that problems such as end.
As a result of further investigation, it has been found that this phenomenon occurs remarkably in the cable drawing portion from the ceiling mounting portion and the binding portion in the portion where the lighting fixture is suspended and fixed.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a ceiling hanging lamp having a hanging structure that bundles wires and harnesses in an attractive manner and improves durability against friction such as rocking.

In order to achieve the above problems, the ceiling hanging lamp of the present invention has the following configuration. That is,
Lighting equipment,
A wire for suspending the luminaire from a ceiling mounting portion attached to the ceiling;
A harness that is pulled out from the ceiling mounting portion along the wire and supplies power to the lighting fixture, and
In addition,
A holding part that is attached to the lighting fixture and / or the ceiling attaching part and binds the wire and the harness at an end thereof;
The holding portion has a hollow cylindrical shape through which the wire is inserted, and a side opening is provided on a side surface thereof.
The harness is bound to the wire by being inserted so as to be pulled out from any one of the opening and the side opening.

  According to this invention, since a wire and a harness are pulled out from the same opening part of a holding | maintenance part, it looks good. In addition, since the harness is inserted through the side opening provided in the holding part, it can be arranged so as to be separated from the wire in the hollow of the cylindrical holding part. Can be reduced.

  Hereinafter, the best mode for carrying out the present invention will be disclosed by examples.

  FIG. 1 shows a perspective view of a ceiling hanging lamp of the present invention. Five lighting fixtures 1 are respectively suspended by cables 3 drawn from the ceiling mounting portion 2. Further, the lengths of the cables 3 are different from each other so that the lighting fixtures 1 are arranged low in the clockwise direction in the top view (viewed from the ceiling side).

  The disk-shaped lighting fixture 1 is formed of a transparent light guide except for a fixed portion by the cable 3, and the whole emits light by a light source provided inside. The lighting fixture 1 of the Example in this invention is demonstrated using FIG. 2, FIG.

  FIG. 2 is a plan view and a side view of the luminaire 1, and FIG. 3 is a schematic cross-sectional view. The luminaire 1 is a disk-shaped light guide made of transparent resin arranged so that the LED 13 is embedded therein, a substrate 14 constituting the circuit of the LED 13, and the luminaire 1 provided at the center of the light guide. The holding unit 4 has a lowered structure, and a cover 15 provided to cover the mounted substrate 14 and the holding unit 4.

(Light guide)
The light guide has a depression so that the LED 13 is disposed, and the second light guide 11 is provided to cover the LED 13 and its wiring, and the first light guide 11 that emits light by guiding the light emitted from the LED. The optical part 12 is comprised. Each of the first light guide unit 11 and the second light guide unit 12 is formed of a transparent acrylic resin, and a plurality of grooves for scattering and reflecting light emitted from the LED 13 are provided on the surface thereof. .

  In order to produce light emission uniformly throughout the entire surface, for example, the groove shape may be finely formed to have a wrinkle shape so as to scatter light. The groove shape may be formed relatively deep so that it is totally reflected inside and radiated toward the light emitting surface. For such a groove shape, a known technique in the light guide related field can be used.

  Further, even when there is no light emission, almost the entire portion excluding the suspended portion of the luminaire 1 is composed of a light guide made of a transparent resin, and the outside light is scattered or reflected by the grooves, so that it is also suitably used as an interior. be able to. At this time, it is preferable to arrange a plurality of reflection grooves so that the wire 31 and the harness 32 cannot be visually recognized behind the light guide.

(light source)
An LED 13 can be suitably used as the light source. This is because it is a point light source that has a very small light emitting area compared to known light emitters such as fluorescent lamps and can be applied to various designs. As the LED 13, a GaAs-based, GaP-based, GaN-based 3-5 group compound semiconductor or SiC-based one that emits a desired emission color is suitably used together with a wavelength conversion member such as a phosphor or a wavelength filter. Can be used.
In this embodiment, a blue light-emitting GaN-based LED chip is used, and white light is emitted using a bullet-shaped LED chip sealed with a sealing material containing a YAG phosphor.

  A wiring (not shown) derived from the substrate 14 is connected to the LED 13. The board | substrate 14 is accommodated in the recess provided in the 2nd light guide part 12, and is formed in the ring shape so that the holding | maintenance part 4 may penetrate. Various circuit elements such as a Zener diode and a capacitor for protecting the LED 13, a bridge circuit and a coil for converting alternating current to direct current and supplying power to the LED 13, or a lighting control circuit are mounted on the substrate 14 in accordance with its use and usage. can do.

(Hanging structure)
Next, a suspension structure using the holding unit 4 that bundles and holds (binds) the wire 31 and the harness 32 will be described with reference to FIGS. 3 and 4. The holding part 4 has a hollow cylindrical shape inside, and has a side opening 41 on the side surface. A screw groove is provided on the outer peripheral surface.

  The wire 31 that suspends the lighting fixture 1 and supports the weight thereof is inserted into the holding portion 4 through the opening 42, and has a spherical locking portion having a diameter larger than the inner diameter of the holding portion 4 at the tip thereof. Hanging. The harness 32 for supplying power to the luminaire 1 is arranged along the wire 31 so as not to give the user an impression that there are many cables, and passes through the opening 42 and the side opening 41 of the holding unit 4. It is inserted.

  The opening 42 is formed to have a large diameter so that even if the lighting fixture 1 swings, the wire 31 and the harness 32 do not interfere with each other and do not interfere with the corners of the inner peripheral surface of the holding unit 4. The edge portion is chamfered in an R shape.

  At the time of assembling the lighting fixture 1, the holding portion 4 into which the wire 31 has been previously inserted is inserted into the light guide, and then screwed with the holding portion 4 with a cover having a screw groove that covers the locking portion at the tip of the wire 31. By doing so, the lighting fixture 1 is suspended and held. For this reason, when a locking portion is provided in advance at the tip of the wire 31, it is desirable that the size of the locking portion is larger than the inner diameter of the cylindrical holding portion 4 and smaller than the outer diameter. Further, when the wire 31 is inserted through the holding portion 4 before the locking portion is connected, the wire 31 and the locking portion are fixedly connected by caulking the locking portion.

The side opening 41 may be an opening formed by hollowing out the side as shown in the left figure of FIG. 4, or is formed by an opening continuous with the opening 42 with the side notched from the opening 42 as shown in the right figure of FIG. May be. According to such a configuration, when the harness 32 is inserted into the holder 4, it is possible to prevent a load from being applied to the harness 32, which is inferior in strength compared to the wire 31, and interfere with and rub against the side opening 41 and the opening 42. Such a phenomenon can be suppressed.
When the side opening 41 that is continuous with the opening 42 is used, the nut 5 is preferably provided in order to hold the harness 32 and bind it to the wire 31.

  Further, in this embodiment, a cover 15 is provided so as to cover the side opening 41 and the substrate 14. Often, ceiling hanging lamps are problematic because dust accumulates on the top surface. If the side opening 41 or the substrate is exposed, a problem such as a fire may occur due to the stacked dust, and it becomes electrically unstable. Moreover, in the lighting fixture 1 which produces a transparent feeling like a present Example, it may become a factor which impairs appearance that dust penetrate | invades from the side surface opening part 41, and accumulates inside. The cover 15 may be screwed using a screw groove provided in the holding portion 4 or may be simply disposed so as to cover the substrate 14 and the side opening 41. In the latter case, it is preferable to use a thread groove and fix it with a nut-like locking member. Further, the cover 15 may be configured and applied as the nut 5 described above.

  By using the holding part 4 formed in this way, problems such as disconnection of the harness 32 can be prevented, and a more durable and safer lighting apparatus can be provided.

(Ceiling)
Although the structure on the side of the lighting fixture 1 has been described so far, the above-described holding portion 4 can also be used for the ceiling mounting portion 2. An enlarged cross-sectional view of the ceiling mounting portion 2 is shown in FIG.
The ceiling mounting part 2 is composed of a fixing sheet metal 21 that is attached to the ceiling by hanging the lighting apparatus 1 via the holding part 4 and a cover 22 that covers the sheet metal 21.

  In the drawing, a locking member is connected in the vicinity of the end portion of the wire 31, and the locking member is supported by the holding portion 4 to support the load of the entire lighting device 1. For this reason, the fixing sheet metal 21 is in a state in which a force is always applied at a portion that supports the holding portion 4 bent in an L shape. For this reason, it is preferable to firmly fix the holding part 4 using the screw groove of the holding part 4 shown in FIG.

  The harness 32 is pulled out from the side opening 41 of the holding unit 4 as described above, and is connected to an electric cable or the like disposed in the ceiling. In this case, it is needless to say that various circuits such as an AC-DC converter can be connected according to the usage pattern.

  In the present embodiment, the structure in which the hanging wire 31 is fixed by the holding portion 4 is shown. However, the wire 31 can be wound up with a reel or the like so that it can be often used for a ceiling hanging lamp, and the height of the lighting fixture 1 can be made variable. You may comprise so that it can do. However, in this case, it is necessary to configure so that the wire 31 and the harness 32 do not interfere with each other due to interference.

  It is also possible to suspend a lighting fixture composed of light guides of different shapes using the holding unit 4 described above. In FIG. 6, sectional drawing of the lighting fixture 100 in a 2nd Example is shown. In addition, the same code | symbol is attached | subjected to the member similar to the above-mentioned Example.

  In this embodiment, a side-emitting LED 130 (side-mounted LED, side view) is used as a light source, and is mounted not on the light guide but on the substrate 14 surrounding the holding unit 4. It is configured to emit light radially in the radial direction of the disc-shaped light guide 110. The side-emitting LED is very compact compared to the above-described bullet-type LED 13, and the light guide can be made thin.

  The light emitting surface of the side-emitting LED 130 and the light guide unit 110 are preferably adhered or sealed with a transparent resin such as silicone. This is because the light guide efficiency with respect to the light guide unit 110 is improved. When sealing with a silicone resin is performed, in addition to the above effects, the circuit components mounted on the substrate 14 can be sealed together to protect the circuit. As the sealing resin, a silicone resin is preferable in view of light and heat characteristics, and a light diffusing agent such as TiO 2 and various fillers may be added. Further, a phosphor such as YAG or BOS may be added to perform wavelength conversion of LED emission light.

The light guide unit 110 made of a transparent body has a disk shape that curves downward and protrudes, and its outer shape is similar to that of the above-described embodiment in plan view. An annular groove 111 that scatters and reflects the guided light is provided on the surface of the light guide unit 110. Since the annular groove is provided not on the ceiling side but on the lower surface, the light emitted from the side-emitting LED 130 and guided into the light guide unit 110 is reflected in the ceiling direction. By setting it as such a structure, the lighting fixture 100 will radiate | emit light not on the floor surface side in the room but on the ceiling side, and there exists an effect which does not illuminate a floor surface but illuminates and produces indoor space.
Further, the center of the lower surface of the light guide unit 110 is thick, curved and protrudes, so that the curved portion has a lens action, and it is difficult to directly view the wire 31 and the harness 32.

  The ceiling hanging lamp of the present invention can be used for a chandelier or the like as an interior suspended from a ceiling mainly in room lighting.

The perspective view of the ceiling hanging lamp of this invention A plan view and a side view of the hanging lighting apparatus 1 Sectional view of lighting fixture 1 Perspective view of holding part 4 Cross section of ceiling mounting part 2 Sectional view of lighting apparatus 100

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Ceiling attachment part 3 Cable 4 Holding part 5 Nut

Claims (7)

Lighting equipment,
A wire for suspending the luminaire from a ceiling mounting portion attached to the ceiling;
A harness that is pulled out from the ceiling mounting portion along the wire and supplies power to the lighting fixture,
In addition,
A mounting portion attached to the lighting fixture or the ceiling mounting portion and binding the wire and the harness at an end thereof;
The holding portion has a hollow cylindrical shape through which the wire is inserted, and a side opening is provided on a side surface thereof.
The ceiling hanging lamp is characterized in that the harness is bound to the wire by being inserted so as to be drawn out from either one of the opening and the side opening.   The ceiling hanging lamp according to claim 1, wherein a screw groove is formed on an outer peripheral surface of the holding portion, and a cover is attached to cover the opening from which the wire and the harness are drawn.   The ceiling hanging lamp according to claim 2, wherein the side opening is formed by a notch formed by notching a side surface from the opening and the cover.   The said lighting fixture consists of LED and the light guide part which consists of transparent resin which light-guides the emitted light of said LED, and has a planar light emission surface, It is any one of Claims 2-3 characterized by the above-mentioned. Ceiling hanging light as described.   The ceiling hanging lamp according to claim 4, wherein a space between the LED and the light guide portion is sealed with a silicone resin.   The said light guide part is formed with several groove-shaped light reflection parts so that the said wire and the said harness cannot be directly seen through the said light guide part. Ceiling hanging light described in 1.   The said groove-shaped light reflection part is provided in the floor surface side in the ceiling hanging lamp of the said light guide part, and reflects the light light-guided inside the ceiling direction. Ceiling hanging lights.

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