JP2012248376A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of easily mounting a disk-shaped LED lamp on the existing lighting device used for a fluorescent lamp.SOLUTION: The lighting device used for a fluorescent lamp has an upper metal fitting 3. The upper metal fitting 3 is retained in a hardly dropping state with a transverse pawl 10 of an adapter 2 mounted on a rosette 1. A first cylindrical auxiliary support 4 is fitted to the adapter 2 from a lower part, and an upper flange 13 arranged at an upper end of the first auxiliary support 4 is supported with the transverse pawl 10 of the adapter 2. The second auxiliary support 5 is installed on the first auxiliary support 4 by being fitted from a lower part, and an LED lamp 6 having a disk-shaped board 36 is fixed to the second auxiliary support 5. The second auxiliary support 5 has an engaging pawl 29, the engaging pawl 29 is fitted to an engaging hole 26 of the first auxiliary support 4.

Description

  The present invention relates to a lighting device having an element-type light source such as an LED or an organic EL, and is particularly suitable for a lighting device attached (fixed) to a ceiling.

  In recent years, LEDs have been promoted in the field of lighting from the viewpoint of power saving and long life, and commercialization of organic EL has also been studied. The lamps of conventional lighting devices are roughly classified into fluorescent lamps and incandescent lamps. However, when changing to LED lighting, the idea is to make the whole structure different from existing lighting apparatuses, and the fluorescent lamps and incandescent lamps of existing lighting apparatuses. There is an idea of replacing an LED lamp with a lamp. As an example of the former, there is Patent Document 1, for example.

  On the other hand, the fluorescent lamp type lighting device fixed to the ceiling has an adapter that is attached to a rosette fixed to the ceiling by rotating from below, as disclosed in Patent Documents 2 and 3, for example. The upper metal fitting is supported by a pair of lateral claws provided on the lamp, and a fluorescent lamp and a hood are attached to the upper metal fitting. The fluorescent lamp is mounted on a holder that is greatly bent and deformed.

JP 2010-049830 A JP 2008-277191 A Japanese Patent Laid-Open No. 11-213745

  If an existing lighting device can be used as it is for LED conversion, there are advantages that costs can be reduced and installation work is not required, and that the design can be used continuously without being discarded. As described above, many ideas have been proposed to replace only the fluorescent lamp with the LED lamp while using the main body of the lighting device for the fluorescent lamp as it is.

  One of them is the problem of insufficient illuminance. For example, when a ring-shaped fluorescent lamp is simply replaced with a ring-shaped LED lamp in a fixed ceiling lighting device, the illuminance equivalent to that of a fluorescent lamp cannot be secured. There is. In this case, for example, it is necessary to increase the illuminance by adopting a method in which the LED lamp is mounted on a disk-shaped substrate with a large number of LED chips. However, simply replacing the fluorescent lamp with the LED lamp is a countermeasure. become unable. As a matter of fact, the cost increases when the entire instrument is replaced.

  In addition, since a direct current power source is used for the LED, and a lighting device that replaces a fluorescent lamp generally uses 24 volts, a power conversion having a transforming function and a rectifying function is required for use with a normal commercial power source. However, in the LED lamp having the same shape as the ring-shaped fluorescent lamp, it is troublesome to incorporate the power converter from the viewpoint of space, and there is a problem that the cost is significantly increased even if it is incorporated.

  The invention of the present application has been made with such a current situation as the beginning, and it is possible to use the main body for a conventional fluorescent lamp as it is when lighting is converted to LED or organic EL, and is excellent in flexibility. The main purpose is to provide a lighting device.

  A lighting device according to a first aspect of the present invention includes a first auxiliary support that is detachably attached to a power supply member fixed to a building or an adapter attached thereto, and a second auxiliary support that is detachably attached to the first auxiliary support. A lamp having a chip-type or surface-emitting light source is attached to the second auxiliary support.

  According to a second aspect of the present invention, the power supply member is a square or circular rosette fixed to a ceiling, and is capable of moving forward and backward in the outer circumferential direction. An adapter having a lateral claw is attached, and an upper metal fitting is fitted and supported on the adapter by retreating the horizontal claw once. A translucent hood that covers a member below the upper metal fitting is provided on the adapter. It is detachably attached.

  On the other hand, the first auxiliary support has a cylindrical shape with an upper and lower opening that fits into the adapter from below, and an upper flange that is sandwiched between the upper metal fitting and the lateral claw at the upper end of the first auxiliary support, An engagement hole into which the lateral claw is inserted is formed, and the second auxiliary support is a cylindrical shape that can be fitted into the first auxiliary support from below, and the first auxiliary support and One of the second auxiliary supports is provided with a coupling claw that moves back and forth in the lateral direction, the other is provided with an engagement hole into which the engagement claw is fitted and detached, and the second auxiliary support. A substrate having a group of LED chips arranged on the lower surface is attached to the lower end of the body.

  According to a third aspect of the present invention, the second auxiliary support body is adapted to fit into the first auxiliary support body from the outside, and the second auxiliary support body is embodied as the first or second aspect. On the support body, two engaging claws protruding inward are arranged at two positions sandwiching the shaft center, while the two engaging claws are provided at a plurality of upper and lower stages of the first auxiliary support body. A plurality of pairs of corresponding engaging claws are formed in a state shifted in the circumferential direction, and therefore the second auxiliary support body is in a state in which the height is changed and a posture in plan view is changed. And attachable to the first auxiliary support.

  For example, in the case of a ceiling built-in lighting device, as described above, a power supply member such as a rosette is provided, an adapter is attached thereto, and a lamp such as a fluorescent lamp is attached to an upper bracket supported by the adapter. Most of them.

  And in this invention, since the 1st auxiliary support body is attached to the electric power feeding member or adapter provided in the building, it can replace with the existing illuminating device or can use the existing illuminating device main body as it is. Moreover, since the 2nd auxiliary support body which provided the lamp | ramp of an element light emission system is not attached to an electric power feeding member or an adapter, but attached to a 1st auxiliary support body, 1st auxiliary support body and 2nd auxiliary support body, By appropriately adjusting the relationship, it is possible to adjust the lamp height position, the planar posture, and the like, and this is excellent in flexibility. Therefore, it is easy to use a plate lamp having a large area so as to have high illuminance.

  According to the configuration of the second aspect, it is possible to replace the element light emitting lamp with a fluorescent lamp by using the upper bracket and the hood of the existing lighting device as they are. For this reason, it is excellent in terms of cost. In addition, since the lamp is provided on the second auxiliary support body, it is possible to set the position and posture of the lamp regardless of the position of the conventional fluorescent lamp. Even lamps can be used without any problem.

  The first auxiliary support can be easily attached to an existing adapter, and the second auxiliary support can be easily attached by being fitted into the first auxiliary support from below. Therefore, the change from the fluorescent lamp type illumination to the element emission type illumination can be easily realized.

  Fluorescent lamp-type lighting devices have the same brightness, but have different heights due to differences in manufacturers, designs, etc. If the configuration of claim 3 is adopted, the second auxiliary support body Since the height position (in other words, the height position of the lamp) can be changed, it is possible to easily cope with lighting devices having different heights.

  In the case of a flat lamp that irradiates light downward, a power converter having a transformation function and a rectifying function is arranged on the upper surface of the lamp, while in a fluorescent lamp type lighting device, on the lower surface of the upper metal fitting. A ballast may be arranged, and if the ballast and the power converter contact each other, the second auxiliary support cannot be attached. In this regard, according to the third aspect of the present invention, since the planar view posture of the second auxiliary support can be changed, even if the power converter and the ballast interfere with each other vertically, the power converter The position can be changed so that does not hit the ballast. For this reason, it is excellent in flexibility.

It is a figure which shows the external appearance of an illuminating device, (A) is the perspective view seen from the top, (B) is a front view, (C) is the perspective view seen from the downward direction. (A) is a principle perspective view of the illuminating device in the fluorescent lamp usage mode, and (B) is a partially separated bottom view. (A) is the isolation | separation perspective view which looked at the principal part from the downward direction, (B) is a perspective view which shows the relationship between a rosette and an adapter. (A) is the whole isolation | separation perspective view, (B) is the perspective view which looked at the hood from the top. It is a partially broken isolation front view of the principal part. It is the top view which isolate | separated a part. It is a longitudinal cross-sectional view of the main part, (A) displays the state viewed from the VIIA-VIIA viewing direction of FIG. 6, (B) displays the state viewed from the VIIB-VIIB viewing direction of FIG. . It is a figure which shows 2nd Embodiment. (A) is a longitudinal sectional view showing the third embodiment, and (B) is a plan view showing the third embodiment. It is a longitudinal cross-sectional view which shows 4th Embodiment. It is a longitudinal cross-sectional view which shows 5th Embodiment. (A) is a longitudinal sectional view showing a sixth embodiment, and (B) is a longitudinal sectional view showing a seventh embodiment.

  Next, an embodiment of the present invention will be described with reference to the drawings. First, a first embodiment shown in FIGS. 1 to 7 will be described. This first embodiment is applied to a ceiling-fixed illumination device, and can be applied as it is to a main body in which two large and small round fluorescent lamps are used. That is, the main part of the conventional fluorescent lamp illumination device is used as it is for the LED illumination device.

(1) Outline First, an outline will be described mainly based on FIGS. As can be easily understood from FIG. 3, the lighting device includes a circular adapter 2 attached to a square rosette (feeding member) 1 fixed to the ceiling T, and a circular upper bracket supported by the adapter 2 so as not to drop. 3, a cylindrical first auxiliary support 4 that is attached to the adapter 2 so as not to drop, a second auxiliary support 5 that is attached to the first auxiliary support 4 so as not to drop, and a second auxiliary support 5. An LED lamp 6 fixed to the lower end and a hood 7 attached to the upper metal fitting 3 and covering each member from below are provided. In this embodiment, the 1st auxiliary support body 4, the 2nd auxiliary support body 5, and the LED lamp 6 are newly used as embodiment of this invention, and other members are the members of the conventional fluorescent lamp type illuminating device. We use as it is.

  The rosette 1 is disposed so as to protrude from the lower surface of the ceiling T, and two arc-shaped engagement holes 8 having one end wide are formed on the lower surface, while the upper surface of the adapter 2 is formed on the upper surface of the adapter 2. The two hook-shaped electrodes 9 corresponding to the arc-shaped engagement holes 8 project upward, and the two hook-shaped electrodes 9 are fitted into the arc-shaped engagement holes 8 of the rosette 1 to engage with each other. The adapter 2 is held so as not to drop. The rosette 1 may have other shapes such as a circular shape in plan view (bottom view).

  The adapter 2 is provided with a lateral claw 10 that protrudes in both directions across the axis. On the other hand, the upper metal fitting 3 is made of steel, has a circular shape in plan view, and has a central hole 11 larger in diameter than the adapter 2 in the center. Further, a resin support ring 12 is fixed to the lower surface of the upper metal fitting 3, and the support ring 12 is supported by the lateral claws 10 of the adapter 2.

  As shown in FIG. 2, fluorescent lamp holders 13 can be attached to the lower surface of the upper metal fitting 3 at three locations along the circumferential direction. The fluorescent lamp holder 13 has an inverted V shape having an inner foot portion 13a and an outer foot portion 13b. The lower end portion of the inner foot portion 13a is bent inwardly and the lower end portion of the outer foot portion 13b is outside. It is bent in a concave direction, and the small-diameter fluorescent lamp 14 is held by the inner foot portion 13a, and the large-diameter fluorescent lamp 15 is held by the outer foot portion 13b. In this embodiment, since the fluorescent lamp holder 13 is not used, it may be removed or may remain attached.

  The hood 7 is made of a resin such as white or milky white (may be transparent), and has a button shape in which the lower surface swells downward. As shown in FIG. 4, inward protrusions 16 are formed on the upper end so as to jump out along the circumferential direction, while a support 17 that supports the inward protrusions 16 is provided on the lower surface of the outer peripheral portion of the upper metal fitting 3. Is provided. The hood 7 is attached to the upper metal fitting 3 by being overlapped on the lower surface of the upper metal fitting 3 and then rotating and fitting the inward projection 16 into the place of the receiving tool 17. Needless to say, the hood 7 can adopt various shapes and structures. It is also possible not to provide the hood 7.

  In the present embodiment, the first auxiliary support 4 is attached using the adapter 2, and the second auxiliary support 5 to which the LED lamp 6 is attached is attached to the first auxiliary support 4. Hereinafter, the entire details will be described with reference to FIG.

(2). Upper metal fitting / adaptor As can be understood from FIGS. 3A and 4A, for example, the central metal portion of the upper metal fitting 3 is a downward projecting portion 3a and the outer side thereof. Is formed with an annular downward protrusion 3b, and a wall 3c is formed on the outer periphery. For this reason, the section modulus is increased and the rigidity is increased. A portion around the central hole 11 is a central recess 3d that protrudes further downward.

  On the other hand, the support ring 12 is formed with two outward projections 12a projecting on both sides of the axis, and the outward projection 12a is fixed to the central recess 3d of the upper metal fitting 3 with screws. As clearly shown in FIG. 7, the inner peripheral surface and the upper surface of the support ring 12 form an inclined guide surface 12b. On the other hand, the pair of lateral claws 10 provided on the adapter 2 are slidably held so as to protrude from the outer peripheral surface of the adapter 2 or to be entirely hidden behind the outer periphery of the adapter 2, and are incorporated in the adapter 2. The spring 20 is pushed and held in the protruding direction, and the lower surface of the tip of the lateral claw 10 is an inclined guide surface 10a that goes outward as it goes upward.

  Accordingly, when the support ring 12 is pushed up so as to fit into the adapter 2, the lateral claw 10 moves once against the spring 20 and then protrudes. It is attached. The adapter 2 is made of, for example, resin, and the side claw 10 is slidably fitted in the downwardly opened slot, and the bottom plate 21 that holds the side claw 10 so as not to drop is fixed to the lower surface by screws or the like. ing. Of course, the adapter 2 can employ various structures.

  When the upper metal fitting 3 is removed, the two lateral claws 10 are retracted radially inward. For this reason, on both laterally oriented nails 10, operating feet 22 for human operation are provided so as to protrude downward. In addition, a plurality of (three) cushions 23 corresponding to the ceiling T are provided on the upper surface of the upper metal fitting 3 so that the support ring 12 is placed on the lateral claw 10 in a state where the cushions 23 are compressed. Yes. For this reason, the upper metal fitting 3 is held in a state without backlash.

  As shown in FIG. 2, a fluorescent lamp ballast 24 is provided on the lower surface of the upper metal fitting 3. Since the ballast 24 is not functioning, it may be removed. However, since it is troublesome to remove the ballast 24 one by one, it may be left attached.

(3) Auxiliary support body / LED lamp The first auxiliary support body 4 is made of metal such as steel, and fits in a portion of the adapter 2 below the support ring 12. As shown in FIG. 7, an upper flange 13 protruding outward is integrally provided at the upper end of the first auxiliary support body 4, and the upper flange 13 is supported by the lateral claws 10 of the adapter 2. . Therefore, a pair of window holes 25 into which the lateral claws 10 are fitted is formed at the upper end portion of the first auxiliary support body 4. In this case, as shown in FIGS. 2 to 4, two pairs of window holes 25 are provided so as to be positioned in the cross direction in plan view.

  Three pairs of engagement holes 26 located on both sides of the shaft center are equally spaced at three height positions of the lower step portion, the middle step portion, and the upper step portion of the first auxiliary support 4. Is formed. The engagement hole 26 has a square (rectangular) shape.

  On the other hand, the second auxiliary support 5 is made of a metal such as steel, and has a cylindrical portion 27 that fits into the first auxiliary support 4 from the outside, as shown in FIGS. Yes. A lower flange 28 is integrally formed at the lower end of the cylindrical portion 27 (the cylindrical portion 27 and the lower flange 28 may be manufactured separately and integrated by welding). The lower flange 28 is formed with a protruding portion 28a that protrudes greatly on both sides of the shaft center, and an engaging claw 29 is disposed at the position of the protruding portion 28a.

  The engagement claw 29 is made of, for example, resin and has a square shape in plan view, and is held by the cover body 30 so as to move forward and backward toward the axis of the second auxiliary support body 5. The cover body 30 is fixed to the projecting portion 28a with screws. The cylindrical portion 27 of the second auxiliary support 5 has a hole 31 through which the engaging claw 29 protrudes and retracts, and the engaging claw 29 is pressed and held in a state of protruding inward by a spring 32 built in the cover body 30. Has been.

  The upper surface of the distal end portion of the engaging claw 29 is an inclined surface 29a which is inclined so as to become lower toward the forefront. Therefore, the second auxiliary support body 5 is lowered with respect to the first auxiliary support body 4. When the engagement claw 29 is pushed in, the engagement claw 29 fits into the engagement hole 26 while moving backward and then moving forward. Therefore, the second auxiliary support 5 can be attached to the first auxiliary support 4 in one touch. The engaging claw 29 is provided with an operating foot 33 projecting downward from the LED lamp 6, and when the engaging claw 29 is moved backward by applying a finger to the operating foot 33, the second auxiliary support 5 is provided with the first auxiliary. It can be removed from the support 4. The second auxiliary support 5 and the LED lamp 6 have a hole (square hole) 34 for allowing the operation foot 33 to slide.

  As described above, since the engagement holes 26 are formed in three pairs in the circumferential direction, the second auxiliary support body 5 can be attached to the first auxiliary support body 4 by changing the planar view posture by 120 degrees. . In the present embodiment, the engagement hole 26 can be fitted into the lower engagement hole 26 and the intermediate engagement hole 26 in the second auxiliary support 5, and thus the height is changed to two stages. it can. If the height of the cylindrical portion 27 is lowered, the engagement claw 29 can be fitted into the upper engagement hole 26.

  It is also possible to reverse the fit between the first auxiliary support 4 and the second auxiliary support 5 inside and outside. It is possible to provide the engaging claw 29 on the first auxiliary support 4 and the engagement hole 26 on the second auxiliary support 5. In this case, the retraction operation of the engaging claw 29 is performed by the LED lamp 6. Therefore, it may be troublesome to remove the second auxiliary support 5. On the other hand, when the engaging claw 29 is provided on the second auxiliary support body 5 as in the present embodiment, the engaging claw 29 can be retracted by placing a finger on the operation foot 33 exposed below the LED lamp 6. Since it can do, there exists an advantage which can remove the 2nd auxiliary support body 5 easily.

  As shown in FIG. 4A, the LED lamp 6 has a configuration in which a large number of LED chips 37 are mounted on the lower surface of a disk-shaped substrate 36 (the LED chips 37 are omitted in FIG. 3A). A power converter 38 having a transforming function and a rectifying function is fixed to the upper surface of the substrate 36. The power converter 38 has a rectangular parallelepiped appearance. The substrate 36 is fixed to the overhanging portion 28a of the second auxiliary support 5 with screws or the like, but an intermediate plate (reinforcement plate) such as a ring is interposed between the substrate 36 and the second auxiliary support 5. Also good. Alternatively, it is possible to set the lower flange 28 of the second auxiliary support 5 to be wide and to fix the substrate 36 thereto.

  As shown in FIG. 7, the power cable 39 extends downward from the lower surface of the adapter 2, while the power converter 38 is provided with a power receiving cable 40, both of which are connected by plugs 41 and 42. . Both plugs 41 and 42 are sized to pass through the upper engagement hole 26. Although FIG. 7 illustrates a state in which both plugs 41, 42 are arranged outside the auxiliary supports 4, 5, both plugs 41, 42 may be arranged inside the first auxiliary support 4. The power receiving plug 42 can be fixedly provided on the outer surface of the power converter 38.

  In addition, as shown by a one-dot chain line in FIG. 7, a configuration is also possible in which a power receiving plug 42 is provided in a portion of the lower surface of the substrate 26 that is close to the center hole 26a (a portion that does not interfere with the LED chip 37), and the power supply plug 41 is inserted therein. Can be adopted. In this case, since the power feeding plug 41 can be inserted into the power receiving plug 42 from below, there is an advantage that the power connection work can be easily performed. It is also possible to provide the power receiving plug 42 on the lower surface of the power converter 38 and make a hole in the substrate 36 for exposing the power receiving plug 42. It is also possible to provide the power receiving plug 42 on the lower surface or inner peripheral surface of the second auxiliary support 5.

(4) Summary To replace the fluorescent lamps 14 and 15 with the LED lamp 6, first, the fluorescent lamps 14 and 15 are removed and the power plug 41 is removed from the ballast 24. Next, as described above, the first auxiliary support 4 is fitted into the adapter 2 and attached. In this case, since the upper metal fitting 3 can be slightly pushed up by pressing and contracting the cushion 23, there is no problem in moving the upper flange 13 of the second auxiliary support 4 to the upper side of the lateral claw 10.

  Next, the second auxiliary support 5 is fitted and attached to the first auxiliary support 4 from below. Now, when the height of the power converter 38 of the LED lamp 6 and the ballast 24 for the fluorescent lamp partially overlap, the second auxiliary support 5 cannot be attached if they are in a position overlapping in plan view. . Further, the position of the ballast 24 may vary depending on the manufacturer and model. In this respect, in this embodiment, since the second auxiliary support 5 can be attached to the first auxiliary support 4 with the posture changed, the ballast 24 is positioned as high as possible without hitting the power converter 38. Can be made. Therefore, this embodiment has an advantage that it can be applied to various fluorescent lamp type illumination devices.

  After the second auxiliary support 5 is attached to the first auxiliary support 4, the power plug 41 is connected to the power receiving plug 42. Since both the plugs 41 and 42 can be held at arbitrary positions within the range of the lengths of the cables 39 and 40, even the connection on the upper side of the LED lamp 6 can be easily performed. Finally, the hood 7 is attached.

  In this embodiment, a combination of the engagement hole 26 and the sliding engagement claw 29 is employed as the engagement means for attaching the first auxiliary support 5 to the second auxiliary support 4 in a one-touch manner. Instead of the joint pawl, for example, it is possible to employ a pivoting engagement pawl that pivots around the lower end.

  The layout of the LED chip 37 in the LED lamp 6 can be arbitrarily changed as necessary. In addition, when the LED lamp 6 is white (colorless) single color, white diodes are used, blue and yellow diodes are provided as a set, or blue diodes are covered with a yellow transparent cover. (Colorless) can be synthesized. It is also possible to obtain light of any color by juxtaposing blue, red and green diodes and adjusting the light intensity of each diode. One or a small number of the many LED chips 37 can be used as a night light.

  It is also possible to make the light intensity variable. When the intensity or color of light is variable, a sensor that receives light or radio waves emitted from the remote controller may be provided at an appropriate position on the lower surface of the substrate 36. It is also possible to turn the LED lamp 6 on and off with a remote controller. In this case as well, the receiving sensor may be provided at an appropriate position on the lower surface of the substrate 36.

  The first auxiliary support body 4 and the second auxiliary support body 5 can be fitted in the opposite directions, but when the second auxiliary support body 5 is fitted to the first auxiliary support body 4 from the inside, The upper limit height of the auxiliary support 5 is regulated by the lower flange 28 hitting the lower end of the first auxiliary support 4. That is, the substrate 36 cannot be positioned above the lower end of the first auxiliary support 4. For this reason, there exists a problem which is hard to make compact.

  In contrast, when the second auxiliary support body 5 is fitted to the first auxiliary support body 4 from the outside as in this embodiment, the LED lamp 6 can be positioned above the lower end of the first auxiliary support body 4. The height of the LED lamp 6 can be changed while lowering the overall height. This is also one of the advantages of this embodiment.

(5). Other Embodiments In the second embodiment shown in FIG. 8, the first auxiliary support 4 is fixed to the center portion of the upper metal fitting 3 by welding or the like, and the first auxiliary support is directly attached to the rosette 1. It is attached. Therefore, a bowl-shaped electrode 9 is projected from the upper surface of the first auxiliary support 4. The upper metal fitting 3 is preferably provided with a cushion. A dedicated hole 44 through which the plugs 41 and 42 are inserted and removed is provided at the top of the first auxiliary support 4.

  In the third embodiment shown in FIG. 9A, a bottom plate 45 is provided at the lower end of the first auxiliary support 4 and a pair of engagement holes 26 are provided in the bottom plate 45, while an upper surface plate is provided at the upper end of the second auxiliary support 5. 46 is provided, and a hook-like engagement claw 29 is slidably provided on the upper surface plate 46. The flange portion 29 b of the engaging claw 29 is exposed on the upper surface plate 46, and the engaging claw 29 is held by the lower guide 47 so as to be slidable and non-detachable.

  The fourth embodiment shown in FIG. 9B is a modification of the third embodiment. In this embodiment, the bottom plate 45 of the first auxiliary support 4 extends around the axis of the first auxiliary support 4. A pair of arcuate engagement holes 48 are provided. The arcuate engagement hole 48 has a wide portion 48a in which only one end thereof can be inserted into and removed from the flange portion 29b, and the other portion has a narrow width in which the flange portion 29b cannot be removed.

  Therefore, the second auxiliary support body 5 is held so as not to drop by horizontally rotating the second auxiliary support body 5 after inserting the flange part 29b into the wide part 48a. A projection 49 is provided on the upper surface of the bottom plate 45 of the first auxiliary support body 4 so as to protrude outwardly from the end portion of the arcuate engagement hole 48 so as to prevent the flange 29b from returning. The collar part 49 gets over the projection 49 by elastic deformation. The first auxiliary support 4 may be attached to the rosette 1 or the adapter 2.

  In the fifth embodiment shown in FIG. 10, the upper metal fitting 3 is fixed to the lower end of the second auxiliary support 5. Therefore, there is a space between the upper metal fitting 3 and the ceiling T. The sixth embodiment shown in FIG. 11 is applied to indirect illumination, and the LED lamp 6 is arranged on the upper surface of the lower metal fitting 50 fixed to the lower end of the second auxiliary support 5. Of course, the LED chip 37 is mounted on the upper surface of the substrate 36. A shade 51 that reflects light downward is fixed to the second auxiliary support 5. The power converter 38 is disposed on the lower surface of the lower metal fitting 50, and the power converter 38 is covered with a cover 52 provided on the lower metal fitting 50.

  In the seventh embodiment shown in FIG. 12A, the LED lamp 6 has a donut-shaped substrate 36a in which the LED chip 37 is disposed on the lower surface, and a cylindrical substrate 36b in which the LED chip 37 is disposed on the outer peripheral surface. ing. Both substrates 36a, 36b are fixed to a lower frame 53 made of steel and having an L-shaped cross section having a peripheral wall 53a. The cylindrical substrate 36b is configured by bending one manufactured as a band plate. On the outer surfaces of the substrates 36a and 36b, a reflective layer 56 made of a metal foil or a thin metal plate is disposed so as not to obstruct the LED chip 37. Although not shown, the lower frame 53 is provided on the second auxiliary support.

  In the eighth embodiment shown in FIG. 12B, an upwardly extending tapered portion 54a is formed on the outer peripheral portion of the lower metal fitting 54 provided on the second auxiliary support 5, and an LED lamp is provided on the outer surface of the upwardly extending tapered portion 54a. It is arranged. The lower metal fitting 54 has a square shape such as a square in plan view, and therefore the substrate 36 constituting the LED lamp 6 is in the form of a strip. The power lines of the LED chips 37 on the adjacent substrates 36 are connected by a connector 55. In this embodiment, since light is irradiated obliquely outside, there is an advantage that a wide range can be illuminated. It is possible to provide the LED lamp 6 also on the lower surface of the lower metal fitting 54.

(6). Others The present invention can be embodied in various ways other than the above embodiment. For example, the first and second auxiliary supports do not necessarily have to be cylindrical, and may be in the form of a square tube, for example. When the first auxiliary support is attached to an existing adapter, the attachment structure may be adapted to the existing method. An intermediate auxiliary support may be interposed between the first auxiliary support and the second auxiliary support.

  As a method of attaching the second auxiliary support to the first auxiliary support, it is possible to use a fastener such as screwing. The light source is not limited to the LED chip, and other types of light emitting elements such as an organic EL can be used. It is also possible to use a plurality of types of light sources. Needless to say, the installation location of the lighting device is not limited to the ceiling, but can be arranged at a desired site such as a wall.

  The present invention is embodied in an LED illumination device and exhibits utility. Therefore, it can be used industrially.

DESCRIPTION OF SYMBOLS 1 Rosette as an example of electric power feeding member 2 Adapter 3 Upper metal fitting 4 First auxiliary support 5 Second auxiliary support 6 LED lamp 7 Hood (translucent cover)
DESCRIPTION OF SYMBOLS 8 Engagement slot 9 Hook-shaped electrode 10 Sideways claw 12 Support ring 24 Stabilizer for fluorescent lamps 26 Engagement hole constituting engagement means 29 Engagement claw constituting engagement means 36 Substrate 37 LED chip 38 Power conversion vessel

Claims (3)

A first auxiliary support that is detachably attached to a power supply member fixed at an installation place or an adapter attached to the power supply member; and a second auxiliary support that is detachable from the first auxiliary support. 2 A lamp having an element light source is attached to the auxiliary support.
Lighting device. The power supply member is a square or circular rosette fixed to the ceiling, and an adapter having a lateral claw that is movable forward and backward in the outer circumferential direction is attached to the rosette, and the lateral claw is attached to the adapter. The upper metal fitting is fitted and supported by retreating once, and a translucent hood that covers a member below the upper metal fitting is detachably attached to the upper metal fitting,
The first auxiliary support body has a cylindrical shape with an upper and lower opening that fits into the adapter from below, and an upper flange that is sandwiched between the upper metal fitting and the lateral claws at the upper end of the first auxiliary support body, An engagement hole into which the nail is inserted is formed,
Furthermore, the second auxiliary support body has a cylindrical shape that can be fitted into the first auxiliary support body from below, and either one of the first auxiliary support body and the second auxiliary support body has a lateral direction. A board having a coupling claw that moves back and forth, an engagement hole through which the engagement claw is fitted and removed on the other, and a group of LED chips arranged on the lower surface at the lower end of the second auxiliary support. Is attached,
The lighting device according to claim 1. The second auxiliary support body is adapted to fit into the first auxiliary support body from the outside, and two engagement claws projecting inward of the second auxiliary support body sandwich two axes. On the other hand, a plurality of pairs of engaging claws corresponding to the two engaging claws are formed in a plurality of pairs at a plurality of positions on the upper and lower stages of the first auxiliary support body in a state of being shifted in the circumferential direction. For this reason, the second auxiliary support body can be attached to the first auxiliary support body in a state in which the height is changed and a posture in plan view is changed.
The lighting device according to claim 1 or 2.

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