JP2012059572A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide at low cost a simple-structured lighting fixture capable of utilizing an LED bulb excellent in durability performance and energy-saving performance in place of a fluorescent tube of a fluorescent lamp.SOLUTION: A plurality of LED bulbs 19 are fitted each on a plurality of bulb fitting units 18 each arranged on a fixing board 13. Each of the bulb fitting units 18 engages an electrode socket inside an upper part of a socket fixing cylinder which is fixed on a hole 17 of the fixing board 13 and projects upward of the fixing board 13, and the electrode socket is positioned at the upper part of the socket fixing cylinder and locked by a locking means. The LED bulb 19, in a state of a bulb base part being connected with the electrode socket, keeps a bulb heat radiation part in a non-contact state with an entire circumferential space interposed against a lower edge opening of the socket fixing cylinder, and a bulb light-emitting part is projected downward of the socket fixing cylinder.

Description

  The present invention relates to a luminaire using a light-emitting diode bulb.

  When a light-emitting diode lamp (hereinafter referred to as “LED lamp”) is used for a lighting apparatus such as a current fluorescent lamp, there is a conventional example in which the light-emitting diode lamp is used as a night-light (see, for example, Patent Document 1).

  In addition, there is a conventional example in which a light-emitting diode bulb (hereinafter referred to as “LED bulb”), which is superior in durability performance and energy saving performance as compared with an incandescent bulb, is used as a bulb replacing an existing incandescent bulb or a bulb-type fluorescent lamp. (For example, refer to Patent Document 2).

Japanese Patent Laid-Open No. 2003-242808 (page 4, FIG. 3) JP 2007-242435 A (page 3, FIG. 1)

  As described above, conventionally, LED lamps or LED bulbs are used supplementarily in lighting fixtures such as fluorescent lamps, or are used in place of incandescent bulbs or bulb-type fluorescent lamps. There is no one that uses an LED bulb instead of a fluorescent tube.

  Fluorescent tubes and LED bulbs are remarkably different in form, so it is not possible to simply replace a fluorescent tube with an LED bulb, and it is necessary to change the structure of a lighting fixture, but such a structural change is made at a low cost. It is not easy.

  The present invention has been made in view of the above points, and provides a lighting fixture with a simple structure that can use a light-emitting diode bulb excellent in durability and energy saving performance at low cost in place of a fluorescent tube. The purpose is to do.

  The invention described in claim 1 includes a fixed base and a light bulb mounting unit for mounting a light-emitting diode bulb provided on the fixed base, and the light bulb mounting unit is provided integrally with the fixed base. A socket fixing cylinder having an opening at the upper and lower ends projecting upward from the fixing base, an electrode socket for connecting an electric wire fitted in the upper part of the socket fixing cylinder, and the electrode socket in the upper part of the socket fixing cylinder And the light-emitting diode bulb is connected to the electrode socket with a bulb cap portion inserted into the socket-fixed tube from a lower end opening of the socket-fixed tube. The bulb heat radiating portion located below the base portion is kept in a non-contact state with respect to the lower end opening of the socket fixing tube through a gap around the entire circumference, and is located below the bulb heat radiating portion. Bulb emitting portion is set luminaire in a position to protrude below the socket fixed cylinder.

  According to a second aspect of the present invention, three or more of the light bulb mounting units in the lighting fixture according to the first aspect are installed, and one of the light bulb mounting units is arranged at the center of the fixed base. The plurality of other bulb mounting units are arranged around the bulb mounting unit at the center, and are inclined downward in a direction away from the bulb mounting unit at the center. It is the lighting fixture provided in the shape.

  According to a third aspect of the present invention, in the lighting fixture according to the first or second aspect, the socket fixing tube includes a vent hole that opens to face a small diameter portion formed in a lower portion of the electrode socket. is there.

  According to a fourth aspect of the present invention, a reflecting surface is formed on the lower surface of the fixed base in the lighting fixture according to any one of the first to third aspects.

  According to a fifth aspect of the present invention, the fixing base in the lighting fixture according to any one of the first to fourth aspects is formed by processing a hard vinyl chloride plate, and the socket fixing tube includes the light-emitting diode bulb and It is formed by processing a hard polyvinyl chloride thin-walled tube that matches the diameter of the electrode socket.

  According to the first aspect of the present invention, the light bulb mounting unit provided on the fixed base includes the electrode socket in the upper part of the socket fixing tube provided integrally with the fixed base and protruding upward from the fixed base. Since it is fitted and locked by the locking means, the existing electrode socket can be fixed on the fixed base with a simple cylindrical structure, and the light-emitting diode bulb has a lower end of the socket fixing cylinder. With the bulb base portion inserted into the socket fixing tube from the opening connected to the electrode socket, the bulb heat radiating portion located below the bulb base portion is connected to the lower end opening of the socket fixing tube with a gap around the entire circumference. The light bulb emitting part of the light-emitting diode bulb is kept in a non-contact state and is set to a position in which the light bulb light emitting part located below the heat radiating part of the light bulb protrudes below the socket fixing tube. The bulb light-emitting part of the light-emitting diode bulb can be placed near the bottom surface of the fixed base with the bulb and heat-radiating part stored in the socket-fixed cylinder, and it has excellent durability and energy saving performance instead of the fluorescent tube of the fluorescent lamp. It is possible to provide an inexpensive lighting fixture that can use a light-emitting diode bulb.

  According to the second aspect of the present invention, one light bulb mounting unit is provided perpendicularly to the central portion of the fixed base, and the other plurality of light bulb mounting units are disposed around the central light bulb mounting unit, Since it is provided in an inclined shape in a direction away from the central light bulb mounting unit, it is possible to provide a lighting device having a simple structure that can illuminate a wide range with at least three or more light-emitting diode light bulbs.

  According to invention of Claim 3, the fresh air suck | inhaled in the said socket fixing pipe | tube from the clearance of the perimeter with respect to the lower end opening of the said socket fixing pipe | tube passes through the said bulb | ball heat sink of the said light-emitting diode bulb | bulb, Since it is configured to be discharged to the outside through the vent hole opened in the socket fixing cylinder facing the small diameter part of the electrode socket, a large amount of fresh air is supplied to the bulb heat radiating portion, and the bulb heat radiating portion is made efficient. It can be cooled well and the temperature rise can be efficiently suppressed.

  According to the fourth aspect of the present invention, since the reflecting surface is formed on the lower surface of the fixed base, the upward light from the light emitting part of the light-emitting diode bulb disposed near the lower surface of the fixed base is also reflected by the reflecting surface. Can efficiently illuminate downward, and the illuminance can be improved.

  According to the invention described in claim 5, an inexpensive and easy-to-process hard vinyl chloride plate is processed to form a fixed base, and an inexpensive and easy-to-process hard polyvinyl chloride thin-walled tube is processed to produce the light-emitting diode bulb and the electrode. Since a socket fixing tube that matches the diameter of the socket is formed, a lighting fixture to which a light-emitting diode bulb can be attached can be provided at low cost.

It is sectional drawing which shows one Embodiment of the lighting fixture which concerns on this invention. It is a perspective view of a lighting fixture same as the above. It is sectional drawing which shows the light bulb attachment unit of a lighting fixture same as the above. It is the IV-IV sectional view taken on the line of FIG. It is a disassembled perspective view of a bulb attachment unit same as the above. It is sectional drawing which shows other embodiment of the lighting fixture which concerns on this invention. It is sectional drawing which shows another embodiment of the lighting fixture which concerns on this invention. It is sectional drawing which shows another embodiment of the lighting fixture which concerns on this invention. It is sectional drawing which shows another embodiment of the lighting fixture which concerns on this invention. It is sectional drawing which shows another embodiment of the lighting fixture which concerns on this invention. It is sectional drawing which shows another embodiment of the lighting fixture which concerns on this invention.

  Hereinafter, the present invention is based on one embodiment shown in FIGS. 1 to 5, another embodiment shown in FIG. 6, and still another embodiment shown in FIGS. 7 to 11, respectively. And will be described in detail.

  First, an embodiment shown in FIGS. 1 to 5 will be described.

  1 and 2 show a Japanese-style hanging type lighting fixture A. This lighting fixture A has a Japanese-style exterior cover 14 around a fixed base 13 that can be hung on a ceiling member 11 by a hanging tool 12 such as a chain. Is attached. On the lower surface of the fixed base 13, there is formed a reflective surface 13a having a reflective coating with white or an equivalent light-colored paint or a mirror-finished finish.

  The fixed base 13 includes a hole 17 drilled in the central portion thereof and a plurality of holes 17 drilled around the hole 17 in the central portion. The plurality of holes 17 include at least 3 holes. Two or more (five in the case of FIG. 2) bulb mounting units 18 are respectively fixed, and these bulb mounting units 18 have a plurality of light-emitting diode bulbs (hereinafter referred to as “LED”) having excellent durability performance and energy saving performance. 19) each is attached.

  As the fixed base 13, a hard vinyl chloride plate having a plate thickness of 3 mm or more is desirable as an inexpensive material having ease of processing. For example, as the hard vinyl chloride plate, a white 5 mm thick plate, ivory 3 Since there are ˜15 mm thick plates, etc., these may be processed.

  As shown in FIG. 2, one light bulb mounting unit 18 is fixed vertically to the fixed base 13 in the hole 17 in the center of the fixed base 13, and the other plurality of light bulb mounting units 18 are It is arranged in a plurality of holes 17 around the light bulb mounting unit 18 at the center, and is fixed in an inclined manner in a direction away from the light bulb mounting unit 18 at the center. The 5-lamp type including the five light bulb mounting units 18 shown in FIG. 2 is suitable for a room having a size of about 8 tatami mats.

  The hole 17 drilled in the center of the fixed base 13 is formed in a perfect circle, and the plurality of holes 17 drilled around it are formed in an ellipse having a long axis in the direction in which the bulb mounting unit 18 is inclined. Thus, no gap is generated between each hole 17 of the fixed base 13 and the socket fixing tube 21 of each bulb mounting unit 18.

  As shown in FIG. 3 and FIG. 4, the plurality of light bulb mounting units 18 include upper and lower end opening-shaped socket fixing cylinders 21 fitted into the holes 17 of the fixing base 13. In the state of protruding upward, it is fixed integrally with an adhesive, and an electrode socket 22 for connecting a wire is fitted into the upper part of the socket fixing cylinder 21. The electrode socket 22 is fixed to the socket by a locking means 23. Positioned and locked in the upper part of the cylinder 21.

  The locking means 23 of each bulb mounting unit 18 positions and locks the lower part of the electrode socket 22 with a socket locking ring 23a that is fixed in advance in the socket fixing cylinder 21 with an adhesive, and also fixes the socket. In this structure, the electrode socket 22 is locked from above by a cap 23b that is fitted into the upper end opening 21a of the cylinder 21 and fixed by an adhesive, a threaded portion, or an engaging uneven portion.

  As shown in FIG. 3, the socket fixing cylinder 21 is opened on the left and right side surfaces of the socket locking ring 23a so as to face a small diameter portion 22bs formed at the lower part of the electrode socket 22. For example, a plurality of vent holes 25 each having a diameter of about 10 mm are provided. The vent hole 25 is a heat radiating hole for releasing the heat generated from the LED bulb 19 to the outside of the socket fixing tube 21, but the amount of heat generated from the LED bulb 19 is extreme compared to the amount of heat generated from the incandescent bulb. However, there is a case where it is not necessary. However, by providing the vent hole 25, overheating can be surely prevented and the reliability of the product can be improved.

  The electrode socket 22 is a receptacle socket made by Panasonic, which is composed of an upper socket 22a and a lower socket 22b for incandescent lamps that are generally available on the market. As shown, the power supply terminal 26 is arranged at the center, and the connection terminal 27a of the one electrode wiring 27 is connected to the terminal plate 26a integrally formed with the power supply terminal 26 by a connection screw 28.

  A screw-shaped socket fitting 29 is concentrically arranged so as to surround the power supply terminal 26, and the connection terminal 30a of the other electrode wiring 30 is connected to the terminal plate 29a integrally formed with the socket fitting 29 by a connection screw 31. Has been.

  One electrode wiring 27 connected to the power supply terminal 26 and the other electrode wiring 30 connected to the socket metal fitting 29 are color-coded with, for example, white and red in order to prevent confusion on the wiring. It is good to leave.

  As shown in FIG. 4, the wires 27 and 30 connected to the terminal plates 26a and 29a by the connecting screws 28 and 31, respectively, have two wire lead holes 32 formed in the upper socket 22a. Each is pulled out to the upper side of the upper socket 22a, and further, as shown in FIG. 5, a notch groove 32a provided in the upper edge of the upper socket 22a and a notch groove 32b provided in a part of the peripheral wall portion of the cap 23b. It is pulled out through.

  The lower socket 22b functions as a protective cover that covers the power supply terminal 26, the socket fitting 29, the terminal plates 26a and 29a, and the connection screws 28 and 31 of the upper socket 22a, and the small socket 22bs formed on the lower socket 22b. Since a spiral protrusion (not shown) is formed on the inner peripheral surface of the upper socket 22a to be screwed with the socket fitting 29, the small diameter portion 22bs is screwed into the socket fitting 29 from the outside. Thus, the lower socket 22b can be integrated with the upper socket 22a.

  As shown in FIG. 3, in the LED bulb 19, the bulb cap 33 inserted into the socket fixing tube 21 from the lower end opening 21 b of the socket fixing tube 21 is screwed into the socket fitting 29 of the electrode socket 22. The electrical connection is made mechanically and electrically, and the eyelet part 34 located at the center of the upper end is pressed against the power supply terminal 26 to be electrically connected. At the time of this connection, the bulb heat radiation part located below the bulb base part 33 35 is kept in a non-contact state with respect to the lower end opening 21b of the socket fixing cylinder 21 via a gap 36 around the entire circumference, and the bulb light emitting part 37 positioned below the bulb heat radiating part 35 is connected to the socket fixing cylinder 21. It protrudes downward and is positioned in the vicinity of the reflecting surface 13a.

  The LED bulb 19 has a built-in power supply circuit that lowers the voltage of the household AC power source to a certain low voltage and converts it to DC, and can also reduce the amount of light by suppressing the flowing current. . Currently, 6.9 watt type and 8.7 watt type are known as the LED bulb 19, but are not limited to these.

  The socket fixing cylinder 21 is preferably a hard polyvinyl chloride thin wall pipe (so-called polyvinyl chloride VU pipe) used for a drain pipe or the like as an inexpensive material having ease of processing. For example, the diameter of the LED bulb 19 and the electrode socket 22 A PVC VU tube 50A (outer diameter 60 mm) conforming to the above is processed into a certain length (for example, 90 mm) and formed.

  The socket locking ring 23a is, for example, a polyvinyl chloride VU tube 50A having the same diameter as the socket fixing cylinder 21, shorter than the socket fixing cylinder 21 (for example, 15 mm), and can be reduced in diameter by providing a notch 38 at one location. Form.

  As the cap 23b, a pipe joint cap or the like applied to the PVC VU pipe 50A similar to the socket fixing cylinder 21 may be used. Such a material is desirable as an inexpensive material having processability and durability.

  Next, a part assembling procedure of the lighting fixture A will be described.

  First, a socket locking ring 23a whose diameter can be reduced by a notch 38 as shown in FIG. 5 is inserted into the socket fixing cylinder 21 with a reduced diameter, and applied to the outer peripheral surface of the socket locking ring 23a in advance. The socket locking ring 23a is fixed to the inner peripheral surface of the socket fixing cylinder 21 as shown in FIG.

  A plurality of socket fixing cylinders 21 are fitted into a plurality of holes 17 formed in the fixing base 13 so that their lower portions protrude slightly, and an adhesive is injected into the fitting portion. Stick.

  The connection terminal 27a of the one electrode wiring 27 is connected to the terminal plate 26a of the power supply terminal 26 provided in each upper socket 22a of each electrode socket 22 by a connection screw 28, and each upper socket of each electrode socket 22 is connected. The connection terminals 30a of the other electrode wiring 30 are respectively connected to the terminal plates 29a of the socket fittings 29 provided on 22a by connection screws 31, and the one electrode wiring 27 and the other electrode wiring 30 are shown in FIG. As shown in the drawing, each of the upper sockets 22a is pulled out from a pair of wire lead-out holes 32 onto each upper socket 22a, and a crossover wiring is previously made between the plurality of upper sockets 22a.

  The respective lower sockets 22b are screwed into the upper sockets 22a thus finished in wiring, and the respective electrode sockets 22 are integrated, and the respective electrode sockets 22 are respectively connected from the upper end openings 21a of the respective socket fixing cylinders 21 to the inside. The lower sockets 22b are inserted and locked by the socket locking rings 23a, and the upper sockets 22a are fixed from the upper side by the caps 23b fitted to the upper end portions of the socket fixing cylinders 21, respectively.

  At that time, the one electrode wiring 27 and the other electrode wiring 30 are drawn out to the outside through the cutout groove 32a of the upper socket 22a and the cutout groove 32b of the cap 23b. The cap 23b is preliminarily coated with an adhesive on its inner peripheral surface and fixed to the upper end portion of the socket fixing cylinder 21, or is screwed into the upper outer peripheral surface of the upper socket 22a and the inner peripheral surface of the cap 23b. The engaging uneven part which can be engaged / disengaged is formed and fixed detachably.

  Finally, the hanging tool 12 such as a chain and the exterior cover 14 are attached to the fixed base 13, and the LED bulb 19 is attached to each bulb attachment unit 18.

  Next, functions and effects of the embodiment shown in FIGS. 1 to 5 will be described.

  From the bulb light emitting portion 37 of each LED bulb 19 attached to the bulb attachment unit 18 in the center and the bulb attachment unit 18 provided in an inclined manner in a direction away from the bulb attachment unit 18 in the downward direction. While illuminating the light expanded downward, the light reflected upward from each light-emitting unit 37 is reflected downward by the reflecting surface 13a of the fixed base 13 located in the immediate vicinity of the light-emitting unit 37, thereby improving the illuminance. Plan. The light quantity of each LED bulb 19 is adjusted by a dimming controller (not shown) installed at the operable position, and the light quantity is reduced as necessary.

  When the LED bulb 19 is lit, the bulb heat radiating part 35 is kept in a non-contact state with respect to the lower end opening 21b of the socket fixing tube 21 via the gap 36 on the entire circumference. Is not directly transmitted to the socket fixing cylinder 21, and even when the temperature of the bulb heat radiating portion 35 of the LED bulb 19 rises to about 60 ° C., the heat radiation action from the entire surface of the socket fixing cylinder 21 and the air vent 25 Due to the heat dissipating action, the portion near the bulb heat dissipating part of the socket fixing tube 21 does not exceed 21 ° C. For example, using an LED bulb 19 with 7 bulbs (8.7 watts), it has been used for more than half a year with an average usage time of about 15 hours a day, but it has been confirmed that no abnormal temperature rise exceeding 21 ° C occurs. Has been.

  In particular, since an upward air flow is generated by heat on the surface of the bulb heat radiating portion 35, fresh air is sucked into the socket fixing cylinder 21 from the gap 36, and this air is along the surface of the bulb heat radiating portion 35. However, since the air is discharged from the air vent 25 to the outside, the fresh air flow from the gap 36 to the air vent 25 effectively performs the heat dissipation action, and the temperature of the socket fixing cylinder 21 is increased. The rise can be reliably suppressed.

  The bulb mounting unit 18 fixed to the hole 17 of the fixed base 13 is fixed to the hole 17 of the fixed base 13 and is fitted into the upper part of the socket fixing cylinder 21 protruding above the fixed base 13. Since the socket 22 is positioned and locked by the locking means 23, the existing electrode socket 22 can be fixed on the fixed base 13 with a simple cylindrical structure. Further, the LED bulb 19 is connected to the socket. With the bulb base portion 33 inserted into the socket fixed barrel 21 from the lower end opening 21b of the fixed barrel 21 connected to the electrode socket 22, the bulb heat radiation portion 35 located below the bulb base portion 33 is connected to the socket. Maintaining a non-contact state with respect to the lower end opening 21b of the fixed cylinder 21 through a gap 36 on the entire circumference, the bulb light emitting part 37 positioned below the bulb heat radiating part 35 is projected below the socket fixed cylinder 21 LED bulb 19 has a light bulb cap 33 In the state where the bulb heat radiating part 35 is stored in the socket fixing tube 21, the bulb light emitting part 37 of the LED bulb 19 can be arranged near the lower surface of the fixed base 13, and the fluorescent tube of the fluorescent lamp can be replaced with durability performance and energy saving. The lighting fixture A having a simple structure that can use the LED bulb 19 having excellent performance can be provided at low cost.

  One light bulb mounting unit 18 is provided vertically in the central portion of the fixed base 13, and the other plurality of light bulb mounting units 18 are arranged around the central light bulb mounting unit 18, and the central light bulb is directed downward. Since it is provided in an inclined shape in a direction away from the mounting unit 18, it is possible to provide a lighting fixture A having a simple structure that can illuminate a wide range with at least three LED bulbs 19.

  Fresh air sucked into the socket fixing cylinder 21 through the gap 36 around the lower end opening 21b of the socket fixing cylinder 21 passes through the bulb heat radiating portion 35 of the LED bulb 19, and the small diameter of the electrode socket 22 is reached. Since it is configured to be discharged to the outside through the vent hole 25 opened in the socket fixing cylinder 21 facing the portion 22bs, a large amount of fresh air is supplied to the bulb heat radiating portion 35, and the bulb heat radiating portion 35 is Cooling can be performed efficiently, and the temperature rise can be suppressed efficiently.

  Since the reflecting surface 13a is formed on the lower surface of the fixed base 13, the light directed upward from the bulb light emitting part 37 of the LED bulb 19 disposed in the vicinity of the lower surface of the fixed base 13 is also reflected by the reflecting surface 13a to efficiently move downward. Irradiation is possible, and illuminance can be improved.

  The fixed base 13 is formed by processing a hard vinyl chloride plate that is inexpensive and easy to process, and the socket fixing cylinder 21, the socket locking ring 23a, and the cap 23b are inexpensively sold in large quantities as drain pipes and the like. Since it is formed by processing an easy-to-process hard polyvinyl chloride thin-walled tube and its pipe joint cap, the socket fixing cylinder 21 is used by using a hard vinyl chloride thin-walled tube VU50A that fits the diameter of the LED bulb 19 and the electrode socket 22, among others. Therefore, the lighting fixture A to which the LED bulb 19 can be attached can be provided at low cost.

  And since the exterior cover 14 of the existing lighting fixture can be reused as it is, it is possible to save resources by reducing waste, and coupled with the fact that power saving can be achieved by the LED bulb 19, it is possible to reduce carbon dioxide. Can contribute.

  It should be noted that the cap 23b is suitable for the hanging type lighting fixture A and is considered in terms of appearance, but is not necessarily functionally required, and may be screw-fixed as shown below.

  Next, another embodiment shown in FIG. 6 will be described. The embodiment shown in FIG. 6 is characterized in that the locking means 23 using the cap 23b is changed to a simpler locking means 39.

  That is, in each bulb mounting unit 18, the locking means 39 for positioning and locking the electrode socket 22 in the upper part of the socket fixing cylinder 21 is a socket locking that is fixed in advance in the socket fixing cylinder 21 with an adhesive. The lower part of the electrode socket 22 is locked by the ring 23a, and the upper socket 22a of the electrode socket 22 is fixed by screws 23d screwed into a plurality of pilot holes 23c provided on the upper side surface of the socket fixing cylinder 21. It is a structure that is locked from the side.

  This screw-type locking means 39 is formed by using an adhesive tape or the like when each electrode socket 22 integrated by screwing the lower socket 22b into the upper socket 22a after wiring is placed in the socket fixing cylinder 21. With each electrode socket 22 temporarily fixed to the socket fixing cylinder 21 and the fixing position determined, a plurality of pilot holes 23c are drilled in the socket fixing cylinder 21 and screws 23d are screwed into the pilot holes 23c. It is preferable that the electrode sockets 22 are locked with the screws 23d at the tips of the screws 23d. In some cases, it may be stopped with an adhesive.

  The locking means 39 by the screw 23d eliminates the need for the cap 23b shown in FIG. 3, thereby saving material, reducing man-hours, and reducing costs associated therewith.

  Next, FIG. 7 shows still another embodiment, and shows a Japanese-style hanging type lighting fixture A having a four-lamp configuration in which four sets of light bulb mounting units 18 are arranged on a fixed base 13. . This 4-lamp shape is suitable for a room having a size of about 6 tatami mats.

  Next, FIG. 8 shows still another embodiment. The luminaire B shown in FIG. 8 is a ceiling light type, and a plurality of holes 17 formed in the round fixed base 13 are provided. A plurality of light bulb mounting units 18 are fixed to each other, and a structure in which LED light bulbs 19 as a plurality of light emitting diode light bulbs are respectively attached to these light bulb mounting units 18, and one light bulb mounting unit 18 is arranged at the center of the fixed base 13. The other plurality of bulb mounting units 18 are arranged around the bulb mounting unit 18 in the central portion, and the central portion of the central portion is directed downward. Since the structure provided in an inclined manner in the direction away from the light bulb mounting unit 18 is the same as that of the hanging type lighting fixture A, detailed description thereof will be omitted.

  The difference from the hanging type lighting fixture A is that the screw-type locking means 39 shown in FIG. 6 is used instead of the cap-type locking means 23, and that the plurality of light bulb mounting units 18 are respectively A reinforcing plate 40 such as a gypsum board with a plurality of holes to be inserted compensates for insufficient strength when a large mounting hole 41 is opened in the ceiling member 11, and a plurality of light bulb mounting units 18 are installed in the mounting hole 41. The exterior cover 44 is secured by a point where the installation space is secured, a point where the fixing base 13 is directly attached to the ceiling member 11 together with the reinforcing plate 40 by the mounting screw 42, and an engaging portion 43 formed integrally with the peripheral edge of the fixing base 13. It is the point which attached detachably.

  The fixed base 13 and the outer cover 44 may be reused by removing the fluorescent lamp base and the fluorescent tube from the existing fluorescent lamp. The exterior cover 44 is removed from the engaging portion 43 of the fixed base 13 by turning the exterior cover 44 or pushing a guide with a push button.

  And, when the fixed base 13 of the existing lighting fixture and the exterior cover 44 are reused as they are, it is possible to save resources by reducing waste, and coupled with the fact that the LED bulb 19 can save power. , Can contribute to the reduction of carbon dioxide.

  Since this ceiling light type luminaire B can achieve the same effects as the hanging type luminaire A, detailed description thereof will be omitted.

  Next, FIGS. 9 to 11 show still another embodiment. FIG. 9 shows a seven-lamp configuration in which seven sets of bulb mounting units 18 are arranged on a round fixed base 13. FIG. 10 shows a ceiling light type lighting fixture B. FIG. 10 shows a ceiling light type lighting fixture B having a five-lamp configuration in which five sets of bulb mounting units 18 are arranged on a round fixed base 13. FIG. 11 shows a square ceiling light type luminaire B having a four-lamp shape in which four sets of light bulb mounting units 18 are disposed on a square fixed base 13. These effects are also omitted.

  Next, in each of the embodiments shown in the drawings, the fixing base 13 is formed of a hard vinyl chloride plate, and the socket fixing cylinder 21 and the socket locking ring 23a are formed of a hard polyvinyl chloride thin wall tube. Although they are integrally provided by bonding with an adhesive, they may be integrally formed by a single plastic (FRP: including fiber reinforced plastic) by an injection molding method or a press molding method.

  That is, in the present invention, the socket fixing cylinder 21 of the bulb mounting unit 18 is integrally molded with the plastic on the fixing base 13, and the electrode socket 22 is positioned and locked in the upper part of the socket fixing cylinder 21. Also included is a lighting fixture in which locking means such as locking claws are integrally molded from the plastic.

  The present invention can be used by manufacturers, distributors, installers, etc. of lighting fixtures.

13 Fixed base
13a Reflective surface
18 Light bulb mounting unit
19 LED bulbs as light-emitting diode bulbs
21 Socket fixing cylinder
21a Upper end opening
21b Lower end opening
22 Electrode socket
22bs Small diameter part
23 Locking means
23a Socket retaining ring
25 Vent
33 Light bulb base
35 Light bulb radiator
36 gap
37 Light bulb
39 Locking means A Lighting equipment

Claims (5)

A fixed base,
A light bulb mounting unit for mounting the light emitting diode light bulb provided on the fixed base,
The above bulb mounting unit is
An upper and lower end opening-shaped socket fixing cylinder provided integrally with the fixed base and projecting upward from the fixed base;
An electrode socket for connecting an electric wire fitted in the upper part of the socket fixing cylinder;
Locking means for positioning and locking the electrode socket in the upper part of the socket fixing cylinder,
The light-emitting diode bulb is connected to the electrode socket with the bulb base portion inserted into the socket-fixed tube from the lower end opening of the socket-fixed tube, and the bulb heat radiating portion located on the lower side of the bulb base portion, Maintained in a non-contact state with respect to the lower end opening of the socket fixing tube through a gap around the entire circumference, the bulb light emitting portion located below the bulb heat radiating portion was set at a position to project below the socket fixing tube. A lighting apparatus characterized by that. Three or more bulb mounting units are installed,
One of the light bulb mounting units is provided in the center of the fixed base and perpendicular to the fixed base.
The other plurality of bulb mounting units are arranged around the bulb mounting unit at the center, and are provided in an inclined manner in a direction away from the bulb mounting unit at the center. The lighting fixture according to claim 1. The socket fixing cylinder is
The lighting apparatus according to claim 1, further comprising a vent hole that opens to face a small diameter portion formed in a lower portion of the electrode socket. The lighting fixture according to any one of claims 1 to 3, wherein the fixed base has a reflecting surface formed on a lower surface thereof. The fixed base is formed by processing a hard vinyl chloride plate,
The lighting fixture according to any one of claims 1 to 4, wherein the socket fixing tube is formed by processing a thin polyvinyl chloride thin tube that matches a diameter of the light-emitting diode bulb and the electrode socket.

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