JP2007227177A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire, in which an equipment body can be miniaturized, compared with a conventional structure while emitting direct light from a sub-light source to a construction surface. <P>SOLUTION: An annular main light source 4 and the sub-light source 6 comprising a LED 28 disposed on the inside of the main light source are held on the lower side of the equipment body 3 mounted on the construction surface. A cover 5 covering the lower part of the main light source 4 is formed in a shape having a clearance 33 for emitting the direct light from the sub-light source 6 to a ceiling surface S with the equipment body 3. According to such a structure, the light from the sub-light source 6 is directly emitted to the ceiling surface S through the clearance 33. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lighting fixture used in a state of being attached to a construction surface such as a ceiling surface or a wall surface.

  In general, as shown in FIG. 6, this type of lighting fixture 1 includes a fixture main body 3 attached to a ceiling surface S, a main light source 4 formed of an annular fluorescent lamp and held by the fixture main body 3, and a main light source together with the fixture main body 3. 4 and a cover 5 covering the entirety of 4.

  Such an illuminating device 1 is an incandescent lamp having a light output smaller than that of the main light source 4, and is often provided with, for example, a sub-light source used as a night light that is turned on when the main light source 4 is turned off. As shown in FIGS. 7A and 7B, the auxiliary light source 6 is generally disposed inside the main light source 4 in the instrument main body 3 and emits light downward through the cover 5 like the main light source 4. is there. Furthermore, in recent years, as shown in FIG. 7C, an LED (light emitting diode) 28 having a high luminous efficiency and a long lifetime has been provided for the auxiliary light source 6.

  Recently, in this type of lighting fixture 1, there has been provided a lamp that can realize light distribution with excellent decorativeness by irradiating the ceiling surface S with the light from the main light source 4. However, even in this lighting fixture 1, since the auxiliary light source 6 is surrounded by the appliance main body 3 and the cover 5, the light from the auxiliary light source 6 is blocked by the appliance main body 3 or the cover 5 and is irradiated onto the ceiling surface S. In the case where only the sub-light source 6 is turned on, the above-described excellent decorativeness cannot be realized.

On the other hand, as shown in FIG. 8, the outer diameter of the instrument body 3 is formed larger than that of the cover 5, and a plurality of auxiliary light sources 6 are disposed on the outer side of the outer peripheral edge of the cover 5 in the instrument body 3. There has also been proposed a luminaire 1 arranged along the outer peripheral edge. As described above, in the lighting fixture 1 in which the auxiliary light source 6 is arranged on the outside of the outer peripheral edge of the cover 5 in the appliance main body 3, direct light from the auxiliary light source 6 is transmitted by the appliance main body 3 and the cover 5 as shown in FIG. 9. It is also possible to irradiate the ceiling surface S without being blocked (see, for example, Patent Document 1).
Japanese Patent Laying-Open No. 2005-183035 (page 4-5, FIG. 2)

  By the way, since the instrument main body 3 will become heavy when the instrument main body 3 becomes large, the attachment or detachment operation | work to the ceiling surface S of the instrument main body 3 becomes difficult. Therefore, although downsizing of the fixture body 3 is desired, in order to cover the main light source 4 with the cover 5, the outer diameter of the cover 5 must be larger than that of the main light source 4, and the lighting fixture described in Patent Document 1 1, the outer diameter of the instrument body 3 is formed larger than that of the cover 5 in order to dispose the auxiliary light source 6, and therefore the instrument body 3 cannot be made smaller than the main light source 4.

  The present invention has been made in view of the above-described reasons, and an object thereof is to provide a lighting fixture that can reduce the size of the fixture body as compared with the conventional configuration while irradiating the construction surface with direct light from the auxiliary light source. And

  In invention of Claim 1, it hold | maintains by the instrument main body inside a main light source so that an instrument main body may be arrange | positioned between the instrument main body attached to a construction surface, the cyclic | annular main light source hold | maintained at an instrument main body, and a construction surface And a cover that covers the main light source so as to dispose the main light source between the construction surface and the construction surface, and the cover receives direct light from the construction light surface. It is formed in the shape which has the space | gap which irradiates to an instrument main body.

  According to this configuration, since the cover is formed in a shape having a gap between the tool body and the tool body to irradiate the construction surface with direct light from the secondary light source, the direct light from the secondary light source is passed through the gap to the construction surface. Can be irradiated. Moreover, since the auxiliary light source is held by the instrument main body inside the main light source so as to arrange the instrument main body between the construction surface, the outer diameter of the instrument main body is set to dispose the auxiliary light source as in the conventional configuration. There is no need to form the cover body larger than the cover, and the instrument body can be made smaller than the main light source, so that the instrument body can be made smaller than the conventional configuration.

  The invention of claim 2 is characterized in that, in the invention of claim 1, the cover is formed in a shape that irradiates the construction surface with direct light from the main light source through the gap.

  According to this configuration, it is possible to irradiate not only the sub-light source but also direct light from the main light source onto the construction surface, so that even when only the main light source is lit, light distribution with excellent decorativeness is realized. Can do.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the sub-light source has directivity in the light emission direction, and the direction in which light is strongly emitted is arranged toward the gap. It is characterized by that.

  According to this configuration, since the auxiliary light source directs the direction in which light is strongly emitted toward the gap, it is possible to enhance the decorativeness of the auxiliary light source by irradiating the construction surface with much of the light from the auxiliary light source.

  According to a fourth aspect of the invention, there is provided the cap according to any one of the first to third aspects, wherein the auxiliary light source is provided so as to be translucent and to arrange the auxiliary light source between the instrument body. It is characterized by.

  According to this configuration, the light from the auxiliary light source can be taken out through the cap on the side opposite to the construction surface with respect to the instrument body.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the outer peripheral edge of the cover is positioned within a range of a width dimension of the main light source in a direction orthogonal to the construction surface. And

  According to this configuration, since the outer peripheral edge of the cover is located within the range of the width dimension of the main light source in the direction orthogonal to the construction surface, the main light source can be provided while providing a gap for irradiating the construction surface with light from the secondary light source. Can be prevented from being directly viewed.

  The invention of a sixth aspect is the invention according to any one of the first to fifth aspects, wherein the cover penetrates a portion inside the main light source and surrounding the auxiliary light source in a direction crossing the construction surface. It has an exit window.

  According to this configuration, the light from the main light source and the sub light source can be extracted through the exit window also on the side opposite to the construction surface with respect to the instrument body.

  According to a seventh aspect of the invention, in the sixth aspect of the invention, the cover is formed on the inner peripheral surface of the exit window so as to reflect the sub-light source so that the light from the sub-light source is emitted from the exit window. It is characterized by.

  According to this configuration, the light from the sub-light source can be efficiently extracted from the exit window by reflecting the light from the sub-light source on the reflecting surface. Further, when the lighting device is viewed from the outside of the fixture main body and the cover with the auxiliary light source turned on, the reflective surface appears to shine through the exit window, so that the decorativeness of the lighting fixture is improved.

  In the present invention, the cover is formed in a shape having a gap between the tool body and the direct illumination from the secondary light source on the construction surface, so that the construction surface is irradiated with direct light from the secondary light source through the gap. can do. Moreover, since the auxiliary light source is held by the instrument main body inside the main light source so as to arrange the instrument main body between the construction surface, the outer diameter of the instrument main body is set to dispose the auxiliary light source as in the conventional configuration. There is no need to form the cover larger than the cover, and the main body of the instrument can be made smaller than the main light source.

  The lighting fixture 1 of this embodiment is used by being attached to a ceiling surface S as a construction surface provided with a hooking ceiling (not shown), and as shown in FIG. An instrument main body 3 having a hook sealing adapter 2 (see FIG. 2) mechanically connected, an annular main light source 4 held below the instrument main body 3, and an instrument main body 3 formed of a translucent material. And a cover 5 that covers the lower part of the main light source 4 so that the main light source 4 is positioned between the two. Further, a sub light source 6 composed of an LED (light emitting diode) having a light output smaller than that of the main light source 4 is provided. Below, the upper and lower left and right of FIG. 1 which shows the state which attached the lighting fixture 1 to the ceiling surface S is demonstrated as upper and lower left and right.

  The instrument main body 3 of the present embodiment is formed in a disc shape, and is attached to the ceiling surface S with the upper surface facing the ceiling surface S by connecting the hook ceiling adapter 2 to the hook ceiling. A recess 7 that is recessed in a circular shape is formed at the center of the lower surface of the instrument body 3, and the hook sealing adapter 2 is vertically provided at the center of the bottom surface of the recess 7 as shown in FIG. 2. It is arranged in the adapter hole 8. An inclined surface 9 is formed around the recess 7 in the lower surface of the instrument body 3 so as to be closer to the ceiling surface S toward the outer peripheral edge side. The inclined surface 9 is provided with a lamp support 10 and a lamp socket 11 for holding the main light source 4 so as to protrude downward, and the main light source 4 is held at a position away from the inclined surface 9. Here, a double-ring fluorescent lamp is used as an example of the main light source 4. Furthermore, an adapter cover 12 having a structure for closing the recess 7 is attached to the instrument body 3 at a position inside the main light source 4. As will be described in detail later, the auxiliary light source 6 is accommodated in the adapter cover 12.

  The adapter cover 12 has a disk shape with a diameter equivalent to that of the recess 7, and a bearing portion 13 having a bearing hole penetrating in the front-rear direction (a direction perpendicular to the paper surface in FIG. 1) is provided at the left end portion. A rotation shaft 14 supported by the peripheral edge of the recess 7 in the instrument body 3 is inserted through the bearing hole. Thereby, the adapter cover 12 is pivotally supported with respect to the instrument main body 3 so as to be rotatable between a position where the recess 7 is closed and a position where the recess 7 is opened with the rotation shaft 14 as the center as shown in FIG. Here, in a state in which the adapter cover 12 closes the recess 7, the upper end portion of the adapter cover 12 is fitted into the recess 7. In addition, since the power connector 15 electrically connected to the instrument body 3 is connected to the lower surface side of the hooking ceiling adapter 2, a recess 16 for accommodating the power connector 15 is provided on the upper surface of the adapter cover 12. is there.

  Further, the adapter cover 12 is provided with an engaging portion 18 that protrudes rightward from the right end portion along the upper surface of the adapter cover 12 and has a long hole (not shown). In the instrument body 3, a latch portion 17 that is inserted into the long hole of the engagement portion 18 is provided at a position corresponding to the engagement portion 18 in a state where the adapter cover 12 closes the recess 7. The latch part 17 has a structure which is hooked around the long hole in the engaging part 18 by rotating 90 degrees in a horizontal plane in a state of being inserted into the long hole. That is, by engaging the engaging portion 18 with the latch portion 17, the adapter cover 12 can be held at a position where the recess 7 is closed. Here, when the fixture body 3 is attached to the ceiling surface S, the engagement between the engagement portion 18 and the latch portion 17 is released to open the recess 7 in order to couple the hook ceiling adapter 2 to the hook ceiling. When the attachment to the ceiling surface S is completed, the adapter cover 12 is fixed at a position where the recess 7 is closed by closing the recess 7 and engaging the engaging portion 18 and the latch portion 17.

  On the other hand, the cover 5 is formed in an annular shape having a circular opening 19 having the same diameter as the adapter cover 12 as shown in FIG. 3, and the lower end of the adapter cover 12 is the opening as shown in FIG. 19 is supported by the adapter cover 12 in a state of being inserted into the adapter 19. On the lower end edge of the adapter cover 12 inserted into the opening 19, support ribs 20 extending in the circumferential direction are formed on the entire circumference excluding a plurality of (here, four) notches 21. Further, support protrusions 22 protruding into the opening 19 are formed at positions corresponding to the notches 21 of the adapter cover 12 at the periphery of the opening 19 of the cover 5. Thereby, after aligning the positions of the notch 21 and the support protrusion 22 and inserting the lower end portion of the adapter cover 12 into the opening 19 of the cover 5 from above, the cover 5 is rotated in the circumferential direction to thereby cut the notch 21 and the support protrusion. If the position with respect to 22 is shifted, the support protrusion 22 is caught by the support rib 20 and the cover 5 is supported by the adapter cover 12. Further, here, on the outer peripheral surface of the adapter cover 12, a regulation rib 23 for regulating the rotation range of the cover 5 relative to the adapter cover 12 is also formed. The cover 5 is formed of a material having light diffusibility so that the main light source 4 is not directly visible from below the lighting fixture 1. By making it larger than the outer diameter, the instrument body 3 is also prevented from being seen directly from below.

  In the present embodiment, as shown in FIG. 4, the adapter cover 12 has a body 24 and an inner cover 25 that can be divided in the vertical direction, and the auxiliary light source 6 is accommodated between the body 24 and the inner cover 25. The configuration is adopted. Therefore, here, each of the body 24 and the inner cover 25 is formed of a material having translucency. However, the body 24 and the inner cover 25 may be transparent, or may have a diffusibility that diffuses and transmits the light from the sub-light source 6. When the adapter cover 12 closes the recess 7, the body 24 is on the lower side and the inner cover 25 is on the upper side. Two holding projections 26 having a U-shaped cross section are provided as a pair on the surface of the inner cover 25 that faces the body 24, and the two holding projections 26 that make a pair have grooves 27 on the opposing surfaces. It is formed in the direction which has.

  The sub-light source 6 is configured by arranging a plurality of LEDs 28 on one surface of the mounting board 29, and the left and right ends of the mounting board 29 correspond to the grooves 27 of the holding protrusions 26 with respect to the holding protrusions 26 of each set. It is held by the inner cover 25 by being attached so as to be inserted. Each LED 28 has a bullet-shaped lens having a tip surface formed in a spherical shape, and the tip surface of the lens is used as a light extraction surface. That is, light is extracted with the central axis direction of the lens as the light extraction direction. Here, two sets of holding projections 26 are provided on the inner cover 25, and two sets of auxiliary light sources 6 held between the holding projections 26 of each set are provided. Each set of sub-light sources 6 is oriented in a direction in which the light extraction direction of each LED 28 is horizontal. Here, the auxiliary light source 6 has a lower end than the lower end edge of the recess 7 in a state where the recess 7 is closed by the adapter cover 12 so that light is not blocked by the inner peripheral surface of the recess 7 of the instrument body 3. It arrange | positions in the position used as the downward direction.

  Note that the adapter cover 12 used here further houses a remote control light receiving unit 30 for an infrared remote control that performs on / off control, dimming control, and the like of the lighting fixture 1. A window hole 31 is formed in the body 24 of the adapter cover 12 so as to penetrate the lower surface of the remote control light receiving unit 30. A connection line 32 that electrically connects an internal circuit (not shown) of the instrument body 3 to the auxiliary light source 6 and the remote control light receiving unit 30 provided in the adapter cover 12 does not interfere with the opening and closing of the adapter cover 12. Is routed through the vicinity of the pivot shaft 14.

  By the way, in the lighting fixture 1 of this embodiment, the direct light from the sublight source 6 can be irradiated to the ceiling surface S by the following structures.

  That is, as shown in FIG. 1, the cover 5 is formed in a shape having a gap 33 for irradiating the ceiling surface S with direct light from the sub-light source 6 between the cover 5 and the instrument body 3. With this configuration, the light from the sub-light source 6 can be directly applied to the ceiling surface S through the gap 33 as indicated by an arrow A in FIG. The gap 33 is formed between the upper surface of the cover 5 and the lower surface of the instrument main body 3, but the lower surface of the instrument main body 3 is inclined so as to be closer to the ceiling surface S toward the outer peripheral edge as described above. 9 is formed, the obliquely upward light directed from the auxiliary light source 6 toward the ceiling surface S can be taken out without being blocked by the instrument body 3. Furthermore, since the main light source 4 is held away from the inclined surface 9 of the instrument body 3 as described above, the light traveling from the sub light source 6 toward the ceiling surface S passes between the main light source 4 and the inclined surface 9. It will pass and will not be blocked by the main light source 4.

  Here, as described above, since the auxiliary light source 6 is directed in the direction in which the light extraction direction of the LED 28 is horizontal, the light of the auxiliary light source 6 is relatively far from the lighting fixture 1 along the ceiling surface S. Will be mainly directed to. In short, the light from the auxiliary light source 6 can reach a relatively distant place from the lighting fixture 1. Further, the shape of the cover 5 is such that the outer peripheral edge of the cover 5 is positioned below the sub light source 6 so that the cover 5 does not block the light emitted from the sub light source 6 toward the ceiling surface S. Designed.

  Moreover, since the auxiliary light source 6 is disposed at a position below the instrument main body 3 and inside the main light source 4, the outer diameter of the instrument main body 3 is used to arrange the auxiliary light source 6 as in the conventional configuration. Need not be formed larger than the cover 5, and the instrument body 3 can be downsized compared to the conventional configuration. Here, the outer diameter of the instrument body 3 is set smaller than the cover 5 and smaller than the main light source 4.

  Further, in the present embodiment, the main light source 4 and the cover 5 are arranged so that the height dimension of the cover 5 from the ceiling surface S is within the height range of the main light source 4, that is, the outer peripheral edge of the cover 5 in the vertical direction. Is set so that is positioned between the upper and lower ends of the main light source 4. Since the main light source 4 and the cover 5 are in the above positional relationship, the light from the main light source 4 does not irradiate directly downward without passing through the cover, and the main light source 4 can be directly seen from below the lighting fixture 1. Nor. In addition, since the light traveling from the main light source 4 toward the ceiling surface S is not blocked by the cover 5, even direct light from the main light source 4 is directed to the ceiling surface S through the gap 33 as shown by an arrow B in FIG. Will be irradiated.

  However, since the light from the main light source 4 is emitted radially from the main light source 4, when the main light source 4 is turned on, the illuminance in the vicinity of the main light source 4 on the ceiling surface S, that is, in the vicinity of the luminaire 1 is particularly high. Become. On the other hand, since the light from the sub-light source 6 is mainly directed to the ceiling surface S at a position relatively distant from the lighting fixture 1 as described above, the ceiling surface S is turned on when the sub-light source 6 is turned on. In particular, the illuminance away from the luminaire 1 is particularly high. In short, the main light source 4 and the sub-light source 6 are different in the range in which light is mainly irradiated on the ceiling surface S, and can illuminate the ceiling surface S around the lighting fixture 1 in different shapes, so that different atmospheres are provided. Can produce.

  In FIG. 1, the light extraction surfaces (that is, the front end surfaces of the LEDs 28) of the two sets of sub-light sources 6 are directed leftward and rightward, but the present invention is not limited to this configuration. That is, for example, if the lamp support 10, the lamp socket 11, the rotation shaft 14, the connection line 32, etc. are present at positions where they block the light from the sub-light source 6, as shown in FIG. The light extraction surfaces of the sub light sources 6 are directed forward and rearward, for example, so that the light from the auxiliary light source 6 is in a horizontal direction in which the lamp support 10, the lamp socket 11, the rotating shaft 14, the connection line 32, etc. do not exist. It is desirable to adopt a configuration that emits light.

  Moreover, the lighting fixture 1 of this embodiment not only irradiates the ceiling surface S with the light from the sub-light source 6 but also emits it on the opposite side of the ceiling surface S, that is, below the lighting fixture 1. As a configuration for that purpose, as shown in FIG. 5, a cap 34 that is formed of a light-transmitting material and covers the lower side of the auxiliary light source 6 is provided so that the auxiliary light source 6 is positioned between the instrument body 3. . The cap 34 is supported by the adapter cover 12 in the same manner as the cover 5, and a plurality of mounting holes 35 (two in this case) are provided on the lower surface of the adapter cover 12 along the outer peripheral edge. Is formed. Each attachment hole 35 is extended in the circumferential direction of the adapter cover 12, and only one end portion in the longitudinal direction is formed wide. The cap 34 is provided with an L-shaped attachment piece 36 that protrudes upward at a position corresponding to each attachment hole 35 and has a tip portion extended inward. As a result, the tip of the attachment piece 36 is inserted into the adapter cover 12 from the wide end of the attachment hole 35 and the cap 34 is rotated in the circumferential direction. As a result, the cap 34 is supported by the adapter cover 12.

  Since the body 24 covering the lower side of the auxiliary light source 6 in the adapter cover 12 containing the auxiliary light source 6 is formed of a light-transmitting material as described above, the light from the auxiliary light source 6 can be obtained by the above configuration. The light is emitted downward through the adapter cover 12 and the cap 34. However, the cap 34 is desirably formed of a material having light diffusive transparency so that the auxiliary light source 6 and the remote control light receiving unit 30 are not directly seen from below the lighting fixture 1.

  Further, an emission window 37 penetrating in the vertical direction is formed in a portion of the cover 5 inside the main light source 4 and surrounding the auxiliary light source 6. A part of the light of the auxiliary light source 6 is also passed through the emission window 37. (Indicated by arrow C in FIG. 1) will be taken down. In the present embodiment, the exit window 37 is divided into four in the circumferential direction of the adapter cover 12. Further, the cover 5 has a reflection surface 38 that reflects a part of the light from the sub-light source 6 on the inner peripheral surface of the emission window 37. The reflection surface 38 is inclined so that the opening area of the emission window 37 becomes smaller toward the upper side, and a part of the light from the sub-light source 6 that irradiates the reflection surface 38 is reflected downward by the reflection surface 38. Thereby, the light of the auxiliary light source 6 can be efficiently extracted downward from the emission window 37.

  The sub-light source 6 may function as a night light that is turned on when the main light source 4 is turned off, but is used to enhance the color rendering of the output light of the lighting fixture 1 by turning on the main light source 4 at the same time. May be. Moreover, the light emission color of LED28 used as the sublight source 6 is not specifically limited, What is necessary is just to select light emission colors, such as a light bulb color and blue, suitably.

  In the said embodiment, although the lighting fixture 1 attached to the ceiling surface S was illustrated, the construction surface where the lighting fixture 1 of this invention is attached is not restricted to the ceiling surface S, For example, a wall surface etc. may be sufficient.

It is the front view which showed embodiment of this invention and fractured | ruptured one part. It is sectional drawing which shows the instrument main body and adapter cover used for the same as the above. It is an exploded perspective view same as the above. It is a disassembled perspective view of the adapter cover used for the same as the above. It is an exploded perspective view same as the above. It is a front view which shows a prior art example. Another example is shown, (a) is a front view with a part broken away, (b) is a bottom view of the instrument body, and (c) is a front view of the main part. Still another conventional example is shown, (a) is a front view with a part broken away, (b) is a bottom view of the main part of (a), (c) is a front view with a part broken, (d) It is a bottom view of the principal part of (c). It is a perspective view which shows another prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture 3 Appliance main body 4 Main light source 5 Cover 6 Sub light source 28 LED
33 Gap 34 Cap 37 Exit window 38 Reflecting surface S Ceiling surface (Construction surface)

Claims (7)

  Sub-light source comprising an instrument main body attached to the construction surface, an annular main light source held by the instrument main body, and an LED held by the instrument main body inside the main light source so as to place the instrument main body between the construction surface And a cover covering the main light source so as to dispose the main light source between the work surface and the work surface, and the cover has a gap for irradiating the work surface with direct light from the sub-light source. It is formed in the shape which has between, and the lighting fixture characterized by the above-mentioned.   The lighting device according to claim 1, wherein the cover is formed in a shape that irradiates the construction surface with direct light from the main light source through the gap.   The lighting apparatus according to claim 1, wherein the sub-light source has directivity in a light emission direction and is arranged with a direction in which light is strongly emitted toward the gap.   The lighting fixture according to any one of claims 1 to 3, further comprising a cap that has translucency and covers the auxiliary light source so as to dispose the auxiliary light source between the fixture main body. .   5. The lighting apparatus according to claim 1, wherein an outer peripheral edge of the cover is positioned within a range of a width dimension of the main light source in a direction orthogonal to the construction surface.   6. The cover according to claim 1, wherein the cover has an exit window penetrating in a direction intersecting the construction surface at a portion inside the main light source and surrounding the sub light source. The lighting fixture as described in. The lighting device according to claim 6, wherein the cover has a reflection surface formed on an inner peripheral surface of the emission window for reflecting the light from the sub-light source to be emitted from the emission window.

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