JP2008120210A - Lighting equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide lighting equipment having a simple structure and enabling interesting illumination. <P>SOLUTION: A light emitting medium 24 with light transmission and light diffusion characteristics is fitted and fixed to a frame 22 having an opening 22a formed on the side face, and the side face of the light emitting medium 24 is exposed from the opening 22a of the frame 22. A light source 27 is provided inside the frame 22. Light from the light source 27 is transmitted through the light emitting medium 24, diffused and irradiated from an exposure part 24a of the light emitting medium 24. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lighting fixture that is attached to a ceiling or the like in a passenger compartment of a vehicle such as an automobile.

Conventionally, as this kind of lighting fixture, the thing of a structure as disclosed by patent document 1 is proposed, for example. That is, in this conventional configuration, as shown in FIGS. 15 and 16, the housing 52 of the luminaire 51 is formed in a box shape having an open portion 52 a on the lower surface, and the open portion 52 a of the housing 52 is light transmissive. A cover 53 having a detachable attachment is attached. A socket 54 is disposed on the inner top portion of the housing 52, and a lamp 55 as a light source is attached to the socket 54. The light from the lamp 55 passes through the cover 53 and is irradiated downward.
Japanese Utility Model Publication No. 6-65092

  However, in the lighting fixture 51 of this conventional structure, since the light source is a mere point light source, it is not interesting. And when this lighting fixture 51 is formed in the elongate shape extended in one direction, it is not only necessary to arrange many lamps 55 along the longitudinal direction, but even if constituted in this way, it is spot-like. Since only light sources are lined up, it is still not interesting and requires a large number of lamps, which complicates the configuration.

  The present invention has been made paying attention to such problems existing in the prior art. The purpose is to provide a lighting apparatus that is capable of interesting lighting and that is simple in construction.

  In order to achieve the above object, the invention described in claim 1 is characterized in that a light-emitting medium having light transmission and light diffusibility is fitted and fixed to a frame having an open portion on a side surface, and one of the light-emitting media. The portion is exposed from the open portion of the frame, and the light from the light source is irradiated from the exposed portion of the light emitting medium.

According to a second aspect of the present invention, in the first aspect of the present invention, the frame and the light emitting medium are integrally formed by extrusion.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the light source is disposed on the opposite side of the exposed portion through the light emitting medium.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the frame and the light emitting medium are formed in a long shape.
The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein a concave portion is formed on the side surface opposite to the exposed surface, and the light emitting diode is disposed in the concave portion. It is characterized by.

The invention according to claim 6 is the invention according to any one of claims 1 to 4, wherein a surface light emitter is provided on the opposite side of the exposed surface.
The invention according to claim 7 is the invention according to any one of claims 1 to 6, characterized in that an end cover for closing the end face of the light emitting medium is provided.

  Therefore, according to the present invention, the light from the light source is irradiated from the entire exposed side surface of the light emitting medium through the light emitting medium. For this reason, it is possible to reduce the number of light sources and to realize illumination that is rich in interest. Therefore. The cover can be detachably attached to the open portion of the housing, and the structure can be simplified as compared with a conventional lighting apparatus in which a light source is disposed in the internal space between the housing and the cover.

  As described above, according to the present invention, the structure is simple, and it is possible to realize interesting lighting, which is an excellent invention as a lighting fixture.

(First embodiment)
Below, 1st Embodiment of this invention is described based on FIGS.
As shown in FIGS. 1-3, in the lighting fixture 21 of this embodiment, it comprises the elongate shape as a whole, and the flame | frame 22 is formed in the elongate channel shape by extrusion molding of the non-transparent synthetic resin. An open portion 22a is formed on one side surface (the lower surface side in the drawing) of the frame 22, and flange portions 22b are formed on both outer edges of the open portion 22a. A pair of locking ridges 23 having a substantially L-shaped cross section are formed on the outer surface of the top wall of the frame 22 in parallel in the longitudinal direction at a predetermined interval, and a pair of opposing locking grooves are formed by these locking ridges 23. 23a is formed.

  A transparent light emitting medium 24 is integrally formed in the frame 22. Then, one side surface (lower surface side in the drawing) which is a part of the light emitting medium 24 is exposed to the outside as an exposed portion 24 a from the open portion 22 a of the frame 22. The frame 22 and the light emitting medium 24 are made of the same material, and are simultaneously extruded and integrated in the state shown in FIG. 6, and then cut into a required length and used. The frame 22 and the light emitting medium 24 are made of a synthetic resin such as vinyl chloride, polycarbonate, or acrylic.

  The light emitting medium 24 has a light scattering property by mixing a transparent synthetic resin material with a metal powder material such as aluminum, a glossy synthetic resin powder, a colored powder, etc. It is formed to retain diffusibility.

  A plurality of light source receiving recesses 25 (only one is shown in the drawing) are formed at predetermined intervals along the longitudinal direction of the frame 22 on the top of the frame 22 and the light emitting medium 24 opposite to the exposed portion 24a. ing. The light source housing recess 25 is formed by partially rolling the frame 22 and the light emitting medium 24. A substantially rectangular bracket 26 is latched and held between the latching grooves 23 a of the latching protrusions 23 on the frame 22 corresponding to the respective light source housing recesses 25. A light source 27 made of a light emitting diode (LED) is attached to the bracket 26, and the light source 27 is accommodated in the light source accommodating recess 25. That is, as indicated by a chain line in FIG. 1, the light source 27 is inserted into the light source receiving recess 25, and the bracket 26 is disposed so as to extend along the longitudinal direction of the frame 22, and thereafter, indicated by a solid line in FIG. Thus, by rotating the bracket 26 in the horizontal plane, both end portions of the bracket 26 are locked in the locking groove 23a, and the light source 27 is stored in the light source storage recess 25.

  As shown in FIGS. 1 and 3, a plurality of stoppers 28 (only one is shown in the drawing) are provided in the longitudinal direction of the frame 22 between the locking grooves 23 a of the locking protrusions 23 on the frame 22. Locked and held at a predetermined interval. The stopper 28 includes a substantially rectangular substrate portion 28a, a boss portion 28b protruding from the center of the upper surface of the substrate portion 28a, a screw hole 28c formed at the center of the boss portion 28b, and a boss portion 28b. It is comprised from a pair of lock | rock part 28d protrudingly provided in the outer peripheral both sides. And after arrange | positioning the fastener 28 between the latching protrusions 23 in the state which has arrange | positioned so that the board | substrate part 28a of the fastener 28 may extend along the longitudinal direction of the flame | frame 22, as shown with a dashed line in FIG. As shown by the solid line in the figure, both ends of the board portion 28a are locked to the locking grooves 23a by rotating the stopper 28 in a horizontal plane. At the same time, the outer end edges of both locking portions 28d are pressed into engagement with the inner end edges of both locking ridges 23, and the stopper 28 is locked and held between the locking grooves 23a of the locking ridges 23. Yes.

  As shown in FIGS. 1 and 7 (bottom view of the vehicle ceiling panel), the vehicle ceiling panel 29 is made of synthetic resin. On the left and right sides of the ceiling panel 29 are formed elongated mounting recesses 30 that open downward for mounting the luminaire 21, and as shown in FIG. 4, at both ends in the longitudinal direction of the mounting recesses 30. Is provided with an inclined portion 30a whose depth gradually decreases. In FIG. 7, P1 to P3 indicate a front pillar, a center pillar, and a rear pillar of the vehicle, respectively.

  A plurality of bolt insertion holes 31 (only one is shown in the drawing) are formed in the top wall of the mounting recess 30 of the ceiling panel 29. As shown in FIGS. 1 and 3, in a state where the lighting fixture 21 is disposed in the mounting recess 30 of the ceiling panel 29, a bolt is inserted from the bolt insertion hole 31 to the screw hole 28 c of the stopper 28 on the lighting fixture 21. The lighting fixture 21 is attached to the ceiling panel 29 by 32 being screwed together. Further, in the mounting state of the lighting fixture 21 to the ceiling panel 29, as shown in FIGS. 2 and 3, both flange portions 22b of the frame 22 on the lighting fixture 21 side are openings of the mounting recess 30 on the ceiling panel 29 side. It is arranged so as to be joined to both side edges in a blindfold manner. Although not shown, a reinforcing means for preventing deformation due to the weight of the lighting fixture 21 is provided on the top wall of the mounting recess 30.

  As shown in FIGS. 4 and 5, in the state where the lighting fixture 21 is fixedly arranged in the mounting recess 30 of the ceiling panel 29, the inclined covers 30a at both ends of the mounting recess 30 have end covers made of synthetic resin. 33 is attached by covering using a fixing means such as a pin (not shown). The end cover 33 covers both ends of the frame 22 of the lighting fixture 21 and the light emitting medium 24 so that the end cover 33 is not exposed to the outside from the mounting recess 30 of the ceiling panel 29. Further, the end cover 33 prevents light from the end face of the light emitting medium 24 from leaking to the passenger compartment side.

Next, the operation of the lighting fixture 21 configured as described above will be described.
In the lighting fixture 21, when the light source 27 is turned on, the light from the light source 27 passes through the light emitting medium 24 and is irradiated downward from the exposed portion 24 a of the light emitting medium 24. In this case, when the light is transmitted through the light emitting medium 24, the transmitted light is diffused to the four sides by the light scattering means mixed in the light emitting medium 24, so that the entire exposed portion 24a of the light emitting medium 24 is an elongated light emitting surface. Light is emitted.

Therefore, the lighting fixture 21 of this embodiment has the following effects.
(1) In the lighting fixture 21 of this embodiment, unlike the configuration of the lighting fixture of the conventional configuration, the light from the light source is emitted from the entire side surface of the light emitting medium 24, so that an interesting lighting effect is obtained. Can do.

(2) Since the light-emitting medium 24 made of a solid body constitutes the appearance of the lighting fixture, the design is excellent as a lighting fixture.
(3) Since light is irradiated from the entire side surface of the light emitting medium 24, the number of light sources (light emitting diodes in the embodiment) can be reduced, and the configuration is simplified.

(4) Since the illuminance and the color of the light-emitting medium 24 can be adjusted by appropriately selecting a metal powder material or a colored transparent powder material mixed in the light-emitting medium 24, the interest can be further improved.
(5) Since the frame 22 and the light emitting medium 24 are integrally formed by extrusion molding, when the entire device is to be formed into a long shape, it is easy to cut the extruded product into a predetermined length. Can respond.

  (6) Illumination light rich in various changes by coloring the light emitting medium 24, using a colored light scattering means, or using a fluorescent coating applied as the light scattering means. Can be obtained.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the description of each embodiment after the second embodiment, the configuration and operation different from the first embodiment will be mainly described.

  In the second embodiment, as shown in FIG. 8, a reflector 35 made of a metal plate such as stainless steel or aluminum or a metal foil is disposed near the top surface of the light emitting medium 24. The reflector 35 is extruded simultaneously when the frame 22 and the light emitting medium 24 are integrally formed by extrusion. The light from the light source 27 is reflected by the reflecting plate 35 toward the exposed portion 24 a side of the light emitting medium 24. The reflecting plate 35 is pulled out simultaneously with the extrusion of the light emitting medium 24 and is embedded in the light emitting medium 24.

Therefore, the lighting fixture 21 of the second embodiment has the following effects.
(7) Since the light from the light source 27 is reflected by the reflecting plate 35, the illumination effect can be enhanced.

(Third embodiment)
Next, a third embodiment of the present invention will be described.
In the third embodiment, as shown in FIG. 9, a plurality of narrow ribbon-shaped light shielding plates 36 are embedded in the vicinity of the inner center of the light emitting medium 24. The light shielding plate 36 is extruded and embedded at the same time when the light emitting medium 24 is integrally formed by extrusion. The light shielding plate 36 is made of a metal plate such as stainless steel or aluminum, a metal foil, a colored translucent resin film, or the like. And when the light from the light source 27 permeate | transmits the light emission medium 24, a part of the permeation | transmission light is shielded by the light shielding board 36, or a colored part is permeate | transmitted.

Therefore, the lighting fixture 21 of the third embodiment has the following effects.
(8) In the vicinity of the center of the light emitting medium 24 in the width direction, a part of the light from the light source 27 is shielded by the light shielding plate 36 or is transmitted through the colored portion. be able to.

(Fourth embodiment)
Next explained is the fourth embodiment of the invention.
In the fourth embodiment, as shown in FIG. 10, an electroluminescence 45 as a light source and a surface light emitter is disposed on the top surface of the light emitting medium 24. The electroluminescence 45 is extruded simultaneously when the light emitting medium 24 is extruded.

Therefore, the lighting fixture 21 of the fourth embodiment has the following effects.
(9) Since the light source is surface emitting, the lighting effect can be enhanced.
(10) The concave portion 25 for disposing the light source is not necessary and can be easily manufactured.

(11) Since the light source is in the form of a sheet, the entire lighting fixture 21 can be downsized without being bulky.
(Fifth embodiment)
Next explained is the fifth embodiment of the invention.

  In the fifth embodiment, as shown in FIG. 11, the flange portion 22b in the open portion 22a of the frame 22 is omitted. Further, a protruding portion 37 is formed on both sides in the width direction of the exposed portion 24a of the light emitting medium 24, and the edge of the open portion 22a of the frame 22 is covered with the protruding portion 37 in a blindfolded manner. .

Therefore, the lighting fixture 21 of the fourth embodiment has the following effects.
(12) Since the area of the exposed portion 24a of the light emitting medium 24 is expanded by the protruding portion 37, the illumination effect can be enhanced.

(Sixth embodiment)
Next, a sixth embodiment of the invention will be described.
In the fifth embodiment, as shown in FIG. 12, the opening width of the open portion 22a of the frame 22 is narrowed by extending the flange portion 22b inward. The exposed portion 24a of the luminescent medium 24 protrudes from the narrow open portion 22a.

(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described.
In the seventh embodiment, as shown in FIG. 13, end cover portions 38 are formed near both ends of the mounting recess 30 of the ceiling panel 29, and the end cover portions 38 communicate with the mounting recess 30. An end insertion hole 39 is formed. At both ends of the frame 22 of the luminaire 21, cutout portions 40 are formed by partially cutting out the flange portions 22 b. When the lighting fixture 21 is assembled in the mounting recess 30 of the ceiling panel 29, the notch 40 at both ends of the frame 22 and both ends of the luminescent medium 24 are inserted into the end insertion holes 39 at both ends of the mounting recess 30. The both ends of the frame 22 and the light emitting medium 24 are covered by the end covering portion 38 by being inserted.

Therefore, the seventh embodiment has the following effects.
(13) Since the end cover 33 is unnecessary, the number of parts can be reduced.
(Eighth embodiment)
Next, an eighth embodiment of the invention will be mainly described.

  In the eighth embodiment, as shown in FIG. 14, the both ends of the frame 22 and the light emitting medium 24 of the lighting fixture 21 are inclined so as to be able to match the both end inclined portions 30 a of the mounting recess 30 of the ceiling panel 29. An excision processing unit 41 is formed. The cut-out processing portion 41 is formed by extruding the frame 22 and the light-emitting medium 24 at an oblique angle after the extrusion of the frame 22 and the light-emitting medium 24, and shaping by heating and pressing with a mold or the like. Has been. And when the lighting fixture 21 is assembled | attached in the recessed part 30 for attachment of the ceiling panel 29, the cutting process part 41 of both ends is arrange | positioned on the both-ends inclined part 30a of the recessed part 30 for attachment.

Therefore, the eighth embodiment has the following effects.
(14) Since the end cover 33 is not necessary as in the eighth embodiment, the number of parts can be reduced.

(Example of change)
In addition, this embodiment can also be changed and embodied as follows.
The frame 22 and the light emitting medium 24 are formed separately, and the light emitting medium 24 is fitted into the frame 22 and bonded and fixed with an adhesive or the like.

The bracket 26 and the stopper 28 for the light source 27 are configured to be fixed to the frame 22 by other fixing means such as an adhesive.
-The inner surface of the frame 22 should be mirror-finished or glossy and the inner surface should be a reflective surface.

A light source is disposed on both end surfaces of the light emitting medium 24.
-Provide a light source other than a light emitting diode or electroluminescence, for example, an Invitrogen plasma emitter.

  -In the said embodiment, changing the whole shape of the lighting fixture 21 into other shapes, such as curved shape and cyclic | annular form, for example.

The principal part disassembled perspective view which shows the lighting fixture of 1st Embodiment. The expanded sectional view of the assembly state in the 2-2 line of FIG. The expanded sectional view of the assembly state in the 3-3 line of FIG. The principal part disassembled perspective view which shows the process structure of the edge part of the lighting fixture of FIG. The principal part perspective view which shows the assembly state of the process structure of the edge part of FIG. The perspective view which shows the flame | frame and luminescent medium of the state by which extrusion molding was carried out. The bottom view which shows the ceiling part of a vehicle. The principal part sectional view showing the lighting fixture of a 2nd embodiment. The principal part sectional view showing the lighting fixture of a 3rd embodiment. The principal part sectional view showing the lighting fixture of a 4th embodiment. The principal part sectional view showing the lighting fixture of a 5th embodiment. The principal part sectional view showing the lighting fixture of a 6th embodiment. The principal part disassembled perspective view which shows the process structure of the edge part of the lighting fixture of 7th Embodiment. The principal part disassembled perspective view which shows the process structure of the edge part of the lighting fixture of 8th Embodiment. Sectional drawing which shows the principal part which shows the conventional lighting fixture. The exploded perspective view at the time of comprising the conventional lighting fixture elongate.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 21 ... Lighting fixture, 22 ... Frame, 22a ... Opening part, 23 ... Locking protrusion, 23a ... Locking groove, 24 ... Luminescent medium, 24a ... Exposed part, 25 ... Light receiving accommodation recess, 26 ... Bracket, 27 ... Light source, 28 ... stopper, 29 ... ceiling panel, 30 ... mounting recess, 32 ... bolt, 33 ... end cover.

Claims (7)

A light-emitting medium having light transmission and light diffusibility is fitted and fixed to a frame having an open portion on the side surface, and a part of the light-emitting medium is exposed from the open portion of the frame so that light from the light source can be emitted from the light-emitting medium. A luminaire configured to irradiate from an exposed portion. The lighting device according to claim 1, wherein the frame and the light emitting medium are integrally formed by extrusion. The lighting apparatus according to claim 1, wherein the light source is disposed on an opposite side of the exposed portion through a light emitting medium. The lighting device according to claim 1, wherein the frame and the light emitting medium are formed in a long shape. The luminaire according to any one of claims 1 to 4, wherein a concave portion is formed on a side surface opposite to the exposed portion, and a light emitting diode is disposed in the concave portion. The lighting fixture according to any one of claims 1 to 4, wherein a surface light emitter is provided on the opposite side of the exposed portion. The lighting device according to claim 1, further comprising an end cover that closes an end surface of the luminescent medium.

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