JP2013127927A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture, of a kind with a lamp body hung down from a ceiling, preventing twisting thereof and stabilizing positioning of the lamp body.SOLUTION: The lighting fixture is provided with a lamp body 2, and one power-feeding wire for feeding power to the lamp body 2. The lamp body 2 includes an LED light source 6 connected to the power-feeding wire 3 and a translucent cover 7 for covering the LED light source 6. The cover 7 has through-holes 73a, 73b on a line part L passing through the center of gravity G of the lamp body 2. Since the power feeding wire 3 penetrates the lamp body 2 through these through-holes 73a, 73b, the through-holes 73a, 73b and the center of gravity G are aligned on the perpendicular line of the power-feeding wire 3 when the lamp body 2 is hung down by the power-feeding wire 3 from the ceiling. As a result, the power-feeding wire 3 is not bent and twisting of the lighting fixture can be prevented and positioning of the lamp body 2 can be stabilized.

Description

  The present invention relates to a lighting fixture in which a lamp body is held by a feeding wire.

  Conventionally, there is a lighting fixture in which a lamp body is held by a power supply wire (see, for example, Patent Document 1). As shown in FIG. 10, such a lighting fixture 100 includes a rectangular flat lamp 200 and a power supply wire 300 that supplies power to the lamp 200 and holds the lamp 200. The power supply wire 300 penetrates the lamp body 200 along one side of the lamp body 200.

JP 2006-236877 A

  However, in the lighting fixture 100 as described above, the feeding wire 300 does not pass through the center of gravity G of the lamp body 200. Therefore, as shown in FIG. 11, when the lamp body 200 is suspended from the ceiling by the feed wire 300, the center of gravity G of the lamp body 2 is positioned on the vertical line of the feed wire 300 connected to the ceiling, and the feed wire 300 is Bend. As a result, the lighting apparatus 100 may be kinked or the position of the lamp body 200 may become unstable.

  The present invention solves the above-mentioned problem, and in a lighting fixture that is used by hanging a lamp from a ceiling by a power supply wire, the lighting fixture can be prevented from being kinked and the position of the lamp can be stabilized. It aims at providing a lighting fixture.

  The lighting fixture of the present invention includes a lamp body and one power supply wire for supplying power to the lamp body, and is used in a state where the lamp body is suspended from the ceiling by the power supply wire. The body has an LED light source connected to the power supply wire and a translucent cover that covers the LED light source, and the cover has a through hole on a line segment passing through the center of gravity of the lamp body. The feeding wire passes through the lamp body through the through hole.

  It is preferable that a plurality of the lamps are provided on the power supply wire.

  According to the present invention, since the feeding wire passes through the lamp body through the through hole provided on the line passing through the center of gravity of the lamp body, when the lamp body is suspended from the ceiling by the feeding wire, The through hole and the center of gravity are arranged on the vertical line of the power supply wire. Therefore, the feeding wire is not bent, and the lighting fixture can be prevented from being kinked and the position of the lamp body can be stabilized.

The side view of the lighting fixture which concerns on embodiment of this invention. The sectional side view of the lamp | ramp which comprises the said lighting fixture. The top view of the said lamp. (A) is a sectional side view of the LED light source which comprises the said lamp body, (b) is the II sectional view taken on the line of (a). (A) is a sectional side view showing the connection between the LED light source and the feeding wire, and (b) is a view of the LED light source viewed from the direction I shown in (a). Sectional drawing of the electric power feeding wire which comprises the said lighting fixture. The figure which shows the assembly point of the said lighting fixture. (A) is a perspective view of the lamp | ramp which comprises the lighting fixture which concerns on the 1st modification of the said embodiment, (b) is a top view of the lamp | ramp. (A) is a perspective view of the lamp | ramp which comprises the lighting fixture which concerns on the 2nd modification of the said embodiment, (b) is a top view of the lamp | ramp. The perspective view of the conventional lighting fixture. The perspective view at the time of hanging the said conventional lighting fixture from the ceiling.

  The lighting fixture which concerns on embodiment of this invention is demonstrated with reference to FIG. 1 thru | or FIG. As shown in FIG. 1, the lighting fixture 1 has a plurality of lamps 2 connected in a rosary shape by a single feeding wire 3, and one end of the feeding wire 3 is connected to a fixture 4 embedded in a ceiling C. It is a hanging type lighting fixture. The fixture 4 is connected to a commercial power source and supplies power obtained from the commercial power source to the lamp body 2 via the feeder wire 3.

  As shown in FIGS. 2 and 3, the lamp body 2 is packed in an LED light source 6 that uses a plurality of LEDs 5 as a light source, a translucent cover 7 that covers the LED light source 6, and a space S between them. A plurality of reflecting members 8 and a holding member 9 interposed between the upper side of the LED light source 6 and the cover 7 are provided. As the LED 5, for example, a white LED in which white light is emitted by covering a GaN-based blue LED chip that emits blue light with a yellow phosphor is suitably used, but an LED that emits light of any color Can be used. The LED light source 6 has a cylindrical shape and is locked to the power supply wire 3 with the power supply wire 3 penetrating through the inside thereof. A specific configuration of the LED light source 6 will be described in detail with reference to FIGS. The cover 7 has a spherical shape. The reflecting member 8 is a spherical polyhedron and is composed of a plurality of types having different sizes. The reflecting member 8 is packed without being fixed in the space S, and reflects the light from the LED light source 6. The holding member 9 holds the cover 7 at a predetermined position.

  The cover 7 has a circular opening 71 on its upper side (ceiling side), and a translucent lid 72 is detachably attached to the opening 71. The opening 71 is configured to have a size that allows the LED light source 6 to be inserted into the cover 7. The cover 7 further has a through-hole 73 through which the feed wire 3 is inserted on a line segment L that passes through the center of gravity G of the lamp body 2 and extends in the vertical direction. The through hole 73 includes an opening 71, a through hole 73 a provided in the center of the lid 72, and a through hole 73 b provided on the lower side of the cover 7. The cover 7 and the lid 72 are made of a translucent material such as glass or acrylic resin.

  The reflecting member 8 is a translucent member formed into a spherical shape by connecting each side of a plurality of polygons, and is made of a translucent material such as glass or acrylic resin. As this thing, crystal glass and organic glass which have many cut surfaces are mentioned, for example. Note that a colorant may be added to the translucent material constituting the reflecting member 8 to the extent that the translucency is not impaired. In the illustrated example, the reflecting member 8 includes three kinds of reflecting members 81, 82, and 83.

  The holding member 9 has a long shape, and includes a rectangular flat plate 91 and two side plates 92 that are inclined from the both ends of the flat plate 91 toward the LED light source 6 at a predetermined angle. A hole 93 through which the feed wire 3 is inserted is provided in the center of the flat plate 91. The length of the holding member 9 in the longitudinal direction is configured to be longer than the diameter of the opening 71 so that the holding member 9 is caught from the inside of the cover 7 to the periphery of the opening 71. The holding member 9 holds the cover 7 by bringing the side plate 92 into contact with the inner surface of the cover 7 while being placed on the upper side of the LED light source 6. The holding member 9 is made of a translucent acrylic resin.

  As shown in FIGS. 4A and 4B, the LED light source 6 includes a support substrate 61 on which the LEDs 5 are mounted, a polygonal cylindrical frame 62 to which the support substrate 61 is attached, and a cylindrical shape that covers these. A light-emitting LED protective cover 63. The support substrate 61 is screwed to the outer side surface of each frame 62 with screws 64. The screw 64 is configured to protrude to the inside of the frame body 62 so that the screw tip is used to lock the LED light source 6 to the power supply wire 3. The support substrate 61 has a wiring pattern (not shown) for supplying power to the LEDs 5. The feed wire 3 passes through the inside of the frame body 62. The frame body 62 has a hole 62a through which wiring (see FIG. 5 described later) for connecting the wiring pattern of the support substrate 61 and the power supply wire 3 is passed to each of the side surfaces. The frame body 62 is made of aluminum having a predetermined rigidity. The LED protective cover 63 is made of a translucent acrylic resin.

  As shown in FIGS. 5A and 5B, the power supply wire 3 includes a binding band 31 wound around itself, a branch portion 32 disposed below the binding band 31, and further than the branch portion 32. And a cover fall prevention member 33 disposed on the lower side. A screw tip of a screw 64 constituting the LED light source 6 is locked to the binding band 31. Thereby, the LED light source 6 is locked to the feeding wire 3. In the branch portion 32, the wiring 34 is branched from a conducting wire (see FIG. 6 described later) included in the power supply wire 3. The wiring 34 branched from the branching portion 32 is connected to the wiring pattern of one support substrate 61 through the hole 62 a of the frame body 62. The wiring pattern of the support substrate 61 connected to the wiring 34 is connected to the wiring pattern of the other support substrate 61 by the feed wiring 35. Thereby, the LED light source 6 is electrically connected to the feeding wire 3. Further, the cover fall prevention member 33 prevents the cover 7 from sliding off due to a frictional force generated by sliding contact with the through hole 73 b of the cover 7. The cover fall prevention member 33 is configured by a rubber band or the like.

  As shown in FIG. 6, the feed wire 3 is obtained by joining two feed lines 36 to each other. Each power supply line 36 includes a core member 37, a conductive wire 38, and an insulating resin 39 that covers them. The core member 37 is composed of 19 Φ0.12 SUS (stainless steel) wires. The conducting wire 38 is composed of 12 copper wires. Each copper wire is constituted by a bundle of eight φ0.08 copper wires.

  Next, the procedure for assembling the lighting fixture 1 having the above configuration will be described. First, as shown in FIG. 7, the binding band 31 and the branch part 32 are accommodated inside the frame body 62, and the wiring 34 is led out from the hole 62 a of the frame body 62 to the outside of the frame body 62. Connect to the pattern. Thereafter, the support substrate 61 is screwed to the frame body 62 with screws 64, and the screw ends of the screws 64 are locked to the binding band 31. With the above operation, the LED light source 6 is electrically connected to the power supply wire 3 and is locked to the power supply wire 3.

  Next, the power supply wire 3 extending downward from the LED light source 6 is passed through the cover 7 in the order of the opening 71 and the through hole 73b (see FIG. 2). Thereafter, the cover 7 is moved upward, and the LED light source 6 is accommodated in the cover 7 through the opening 71. In this state, the reflecting member 8 is packed in the space S. Next, a hole 93 of the holding member 9 is passed through the power supply wire 3 extending upward from the LED light source 6, the holding member 9 is introduced into the cover 7 through the opening 71 in an oblique manner, and then the holding member 9 is connected to the cover 7 and the LED light source 6. It arranges between the upper side of. Thereby, the inner surface of the cover 7 is caught by the holding member 9, and the cover 7 is held with respect to the LED light source 6. Further, a cover fall prevention member 33 is attached to the cover 7. Finally, a lid 72 is attached to the opening 71.

  In the lighting fixture 1 assembled as described above, the light emitted from the LED 5 passes through the LED protective cover 63 and is then reflected by the plurality of reflecting members 8 in various directions. At this time, since the surface of the reflecting member 8 is constituted by a large number of polygons, the light emitted from the LED 5 is reflected by the surface of the reflecting member 8 or is incident on the reflecting member 8 and then the incident surface. Refracts and transmits through different surfaces. The light that is reflected by the plurality of reflecting members 8 is transmitted through the cover 7, the lid 72, and the holding member 9, and is irradiated to the outside from the entire surface of the lighting fixture 1.

  According to the luminaire 1 of the present embodiment, since a plurality of reflecting members 8 that reflect the light from the LED light source 6 are provided, the light from the LED light source 6 is reflected multiple times to irradiate light over a wide range. can do. In addition, since the cover 7 that covers the LED light source 6 is translucent, it is possible to irradiate the exterior of the luminaire 1 as it is with a glittering light reflected by the reflecting member 8. The decorativeness of the lighting fixture 1 can be improved.

  Moreover, since the reflection member 8 is made into the spherical polyhedron shape, the light reflected by the reflection member 8 becomes light with a glittering feeling that a cut glass or a mirror ball exhibits, and the decorativeness of the lighting fixture 1 is enhanced.

  Further, since the reflecting member 8 is composed of the reflecting members 81, 82, and 83 having different sizes, the light can be reflected in more various patterns than when only one kind of the reflecting member 8 is present. it can. In addition, when the reflecting members 81, 82, and 83 colored with different colors are used, a plurality of kinds of colors of light emitted from the lighting fixture 1 can be used. Can be increased.

  In addition, since the support substrate 61 is formed in a polygonal cylinder shape and the LEDs 5 are disposed on each of the outer surfaces thereof, the light can be evenly radiated around the luminaire 1. Moreover, since the opening 71 is provided in the cover 7, the reflecting member 8 can be easily exchanged by taking the reflecting member 8 into and out of the opening 71. In addition, since the opening 71 is blocked by the lid 72, it is possible to prevent the reflecting member 8 from falling off and dust from entering the cover 7.

  Further, since the feeding wire 3 penetrates the lamp body 2 through the through-hole 73 provided on the line segment L passing through the center of gravity G of the lamp body 2, the lamp body 2 is suspended from the ceiling C by the feeding wire 3. When lowered, the through hole 73 and the center of gravity G are aligned on the vertical line of the feed wire 3. Therefore, the feeding wire 3 is not bent, and the lighting fixture 1 can be prevented from being kinked and the position of the lamp body 2 can be stabilized.

  Next, the lighting fixture which concerns on the modification of the said embodiment is demonstrated with reference to FIG.8 and FIG.9. As shown to Fig.8 (a) (b), the shape of the above-mentioned lighting fixture 1 and the cover 7 differs in the lighting fixture which concerns on a 1st modification. In this modification, the outer shape of the cover 7 is a substantially cubic shape, and each of the side surfaces thereof is parallel to each support substrate 61. As shown in FIGS. 9A and 9B, the lighting fixture according to the second modification is different in the arrangement of the lighting fixture 1 and the support substrate 61 and the shape of the cover 7 described above. In this modification, the three support substrates 61 form a triangular cylinder shape. The outer shape of the cover 7 is a triangular prism shape, and each of its side surfaces is parallel to each support substrate 61. According to the lighting fixtures according to these modified examples, it is possible to increase the design diversity of the lighting fixtures while giving the same effect as the lighting fixture 1 described above.

  In addition, the lighting fixture which concerns on this invention is not limited to the said embodiment and its modification, A various deformation | transformation is possible. For example, in the above embodiment, a plurality of lamps are provided on one power supply wire, but only one lamp may be provided on one power supply wire. Further, the support substrate is not necessarily formed in a polygonal cylinder shape, and may be formed in a cubic shape, for example. Furthermore, the cover may be configured without an opening and a lid. In this case, for example, when the cover is composed of two hemispherical members and these are combined to form a spherical cover, the LED light source and the reflecting member may be introduced together into the cover. .

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Lamp body 3 Feeding wire 6 LED light source 7 Cover 73, 73a, 73b Through-hole C Ceiling G Center of gravity L of lamp body Line segment which passes through the center of gravity of lamp body

Claims (2)

A lamp and a single feeding wire for feeding power to the lamp, the lighting fixture being used in a state where the lamp is suspended from the ceiling by the feeding wire,
The lamp body includes an LED light source connected to the power supply wire, and a translucent cover that covers the LED light source,
The cover has a through hole on a line segment passing through the center of gravity of the lamp body,
The power supply wire passes through the through hole and penetrates the lamp body.   The lighting fixture according to claim 1, wherein a plurality of the lamps are provided on the power supply wire.

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