JPH08180726A - lighting equipment - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a lighting fixture that can be easily updated using an existing lighting fixture. [Structure] The lighting fixture 1 is an existing ceiling-embedded lighting fixture body.
An elongated base 2 that can be housed in 73, a pair of sockets 28 arranged on the lower surface of the base 2, a ballast 26 and a terminal block 27,
Fixing means 3 for fixing the base body to the existing instrument body 73
And a straight tube type fluorescent lamp L, and a reflector 4 whose peripheral edge abuts around the lower surface of the ceiling embedding hole and is detachably attached to the base body. [Effect] It is not necessary to remove the existing ceiling-embedded luminaire main body while it is still installed, and it is possible to renew (renew) the luminaire to new ones, which makes mounting work extremely easy.
Equipment costs can be reduced, less waste is generated when renewing, and appearance is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture embedded in a ceiling.

[0002]

2. Description of the Related Art A ceiling-embedded luminaire is, for example,
The one disclosed in Japanese Patent Laid-Open No. 5454 (hereinafter, referred to as a first conventional example) is known.

17 and 18 are a partial sectional side view and a partial sectional front view showing a ceiling-embedded luminaire of a first conventional example. The lighting fixture 71 is embedded in the decorative ceiling 72, and includes a fixture main body 73, a reflector 75, and a lamp L ′. The appliance main body 73 includes a case 76 having an open bottom surface, and the case 76 stores necessary lighting components such as a ballast 78 and electrical components. Case 7
A suspension bolt 79 is inserted through the screw 6, and the nut 80 is suspended and fixed by screwing the nut 80 from below. Case 8
6, a pair of fixing metal fittings 81 are attached. By bringing the fixing metal fittings 81 into contact with the openings 82 provided in the decorative ceiling 72, the instrument body 73 is positioned and fixed with respect to the openings 82. It Further, lamp sockets 84 are mounted opposite to each other at both longitudinal ends of the case 76, and a straight tube fluorescent lamp L ′ is mounted between the lamp sockets 84. The reflector 75 has an irradiation opening 86 formed therein, and is detachably attached by means of a decorative screw 74.
To be fixed. Through holes 87 for the lamp socket are formed at both ends of the reflector 75 in the longitudinal direction.
4 projects inward of the reflector 75.

Further, Japanese Laid-Open Patent Publication No. 61-54102 (hereinafter referred to as a second conventional example) discloses a lighting fixture capable of selectively replacing a lamp body. This lighting fixture is embedded in a ceiling, and a lamp body having lighting components such as a lamp and a ballast is mounted from below in a storage opening of a fixture body. The lamp body is electrically and mechanically connected by a connector arranged in the storage opening of the fixture body.

[0005]

When the luminaire is used for a long period of time and is deteriorated, the illuminance on the floor is lowered due to deterioration of characteristics of lighting components such as a ballast and dirt on the reflector, and the visual environment is beautiful. Is damaged.

In such a case, it is desirable to update (renew) the lighting fixture with a new fixture, but if the number of the fixtures to be updated is large, the equipment cost will increase and
Removal of existing equipment and installation of new equipment are troublesome.
Further, there is a problem that the cost for disposing of the existing equipment is also high.

Further, when the lighting parts such as the ballast have reached the end of their life, it is possible to replace only these lighting parts.

However, in the case of the first conventional example, since the lighting component is fixed in the instrument body, it is necessary to replace the entire instrument body. Further, even if the lighting parts can be replaced, it is difficult to perform the replacement work at a high place. Therefore, it is necessary to remove the lighting body together with the fixture body and replace the lighting parts. The replacement work of the lighting parts is complicated and inefficient. .

Further, in the case of the second conventional example, only the lamp body attached to the fixture body needs to be replaced with a new lamp body. However, this fixture body only has a lamp body connectable to the connector. Cannot be exchanged. Therefore, the configuration of the second conventional example cannot be used to replace a general lighting fixture, and is not versatile.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a lighting fixture which can be easily updated using an existing lighting fixture.

[0011]

The luminaire according to claim 1 comprises:
An elongated base that can be housed in an existing ceiling-embedded luminaire main body, a pair of sockets arranged at both end portions of the bottom surface of the base body, a ballast arranged at a central portion of the bottom surface of the base body, and a power supply line as a base body. Terminal block which is directly inserted from above and fixed to the base so that it can be connected, and which is wired to the required electric parts arranged on the base, and the main body of the existing ceiling-embedded luminaire. A fixing means for fixing the ballast, a reflector covering the ballast, a peripheral edge abutting the lower surface of the ceiling embedding hole, a reflector detachably attached to the lower surface of the base body, and a socket And a straight tube fluorescent lamp that is detachably attached to the.

According to another aspect of the present invention, there is provided an elongated base body which can be housed in an existing ceiling-embedded luminaire main body and which also serves as a reflector whose peripheral edge covers the peripheral edge of the ceiling opening. A pair of sockets arranged at both end portions of the lower surface of the base body, a ballast arranged at an intermediate portion of the upper surface of the base body, and a power supply line directly inserted from above the base body and fixed to the base body so that they can be connected. , A terminal block wired to the required electric parts arranged on the base, a fixing means for fixing the base to an existing ceiling-embedded luminaire, and a direct mount removably mounted between the sockets. And a tubular fluorescent lamp.

The luminaire according to claim 3 can be housed in an existing ceiling-embedded luminaire main body, and has a long and narrow base body which also serves as a reflector, the peripheral edge of which covers the peripheral edge of the ceiling opening. A pair of sockets arranged at both end portions of the lower surface of the base body, a ballast disposed at a central portion of the lower surface of the base body, and a power supply line directly inserted from above the base body and fixed to the base body so as to be connectable. , A terminal block wired to the required electric parts arranged on the base body, a fixing means for fixing the base body to an existing ceiling-embedded luminaire body, and detachably mounted between the sockets It is characterized by comprising a straight tube type fluorescent lamp and a cover attached to the base so as to cover the ballast, and an outer surface facing the fluorescent lamp having a reflecting function.

In the lighting apparatus according to any one of claims 1 to 3, the base body may have any detailed shape and material as long as it is an elongated shape that can be housed in the ceiling-embedded lighting apparatus body. The reflector may have either a white surface or a mirror surface. Also, the required electrical components are wiring components that are interposed between lighting components such as ballasts or sockets,
It means security parts. The fixing means is a decorative screw,
Well-known fixing means such as bolts, springs, hooks, or elastic engaging claws can be applied, and include those that can adjust the distance between the existing instrument body and the base body to be adjustable.

The luminaire according to claim 4 is the lighting device according to any one of claims 1 to 3.
The straight tube fluorescent lamp of the luminaire according to any one of items 1 to 4 is a fluorescent lamp dedicated to high-frequency lighting, and the ballast is a ballast mainly including a high-frequency inverter.

The lighting equipment of claim 5 is the lighting equipment of claims 1 to 4.
Any one of the above-described fixing means for a lighting fixture is characterized in that the base is fixed by utilizing a reflector mounting hole of an existing lighting fixture main body.

The lighting equipment of claim 6 is the lighting equipment of claims 1 to 4.
The fixing means for the lighting fixture according to any one of the above 1 to 5 is characterized in that the fixing means is disposed on the upper surface of the base body and is an engaging means capable of engaging with the existing lighting fixture main body. The engagement means is formed by being biased by an elastic body such as a leaf spring or a coil spring so as to be engageable with a part of the existing lighting fixture body.
The shape is arbitrary as long as it can be engaged with the existing lighting fixture main body, such as one formed only with a leaf spring or one formed in combination with a component such as an engaging claw.

[0018]

Each of the lighting fixtures according to the first to fifth aspects is mounted after removing the lamp and the existing reflector mounted on the existing ceiling-embedded lighting fixture body.

The procedure for mounting the lighting fixture according to claim 1 is as follows:
First, the power supply line is directly inserted into the terminal block provided on the base body from above the base body and connected, and the base body is fixed to the existing instrument body by the fixing means and stored in the existing instrument body. Next, a reflector is attached to the lower surface of the base, and the ballast disposed on the base is covered by the concave portion of the reflector, and the peripheral edge of the reflector abuts around the lower surface of the ceiling embedding hole. Then, the straight tube fluorescent lamp is attached between the sockets arranged on the base body, and the attachment of the lighting fixture is completed.

The procedure for mounting the luminaire according to claim 2 is as follows:
First, the power supply line is directly inserted into the terminal block provided on the base body from above the base body and connected, and the base body is fixed to the existing instrument body by the fixing means and stored in the existing instrument body. When the base body is fixed to the existing fixture body, the peripheral edge of the base body covers the peripheral edge of the ceiling embedding hole. The straight tube fluorescent lamp is mounted between the sockets arranged on the base. Thus, the mounting of the lighting fixture is completed.

The procedure for mounting the lighting fixture according to claim 3 is as follows:
First, the power supply line is directly inserted into the terminal block provided on the base body from above the base body and connected, and the base body is fixed to the existing instrument body by the fixing means and stored in the existing instrument body. When the base body is fixed to the existing fixture body, the peripheral edge of the base body covers the peripheral edge of the ceiling embedding hole. Next, a cover is attached to the substrate to cover the ballast. Then, the straight tube fluorescent lamp is attached between the sockets arranged on the base body, and the attachment of the lighting fixture is completed.

According to a fourth aspect of the present invention, in addition to the operation of the first aspect, the fluorescent lamp dedicated for high frequency lighting is turned on at high frequency.

In recent years, for example, the floor illuminance in a lighting facility room such as an office is
Higher demand than before. Therefore, it is conceivable to add a lamp to the existing lighting equipment, but power consumption will increase. Therefore, a fluorescent lamp exclusively for high-frequency lighting is attached to a lighting fixture that is attached to an existing fixture main body, and is lit by a ballast mainly including a high-frequency inverter to realize power saving or high illuminance.

According to a fifth aspect of the present invention, in addition to the function of the first aspect of the present invention, the base body is fixed by using the reflector mounting hole of the existing instrument body.

According to a sixth aspect of the present invention, in addition to the operation of the first aspect of the present invention, the base body is engaged and fixed to the existing instrument body by the engaging means.

Claims 1 to 6 mounted in this way
Any of the described lighting fixtures can be installed as a new lighting fixture without removing the existing fixture body. It should be noted that the power supply line may be either newly wired or connected to the existing fixture body.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the lighting equipment of the present invention will be described below with reference to FIGS.

FIG. 1 is an exploded perspective view showing the first embodiment. Reference numeral 1 denotes a lighting device, which is mainly composed of a substrate 2, a fixing means 3, a reflector 4 and a straight tube fluorescent lamp L. The base 2 is attached to the existing embedded luminaire main body 73 described above with reference to FIGS. 16 and 17 as a conventional example via the fixing means 3, and the reflector 4 is attached to the base 2.

The substrate 2 has a chassis 22. The chassis 22 is composed of a chassis body 23 having a length slightly shorter than that of the existing fixture body 3, and a pair of lamp socket mounting portions 24 connected to both ends of the chassis body 23. Further, on the lower surface of the chassis body 23, there is a fluorescent lamp L for exclusive use of high frequency lighting.
Inverter type ballast 26 and terminal block 27 for high-frequency lighting within the range of 10 to 100 kHz are attached. Two lamp sockets 28 projecting downward are attached to the lamp socket attachment portions 24, respectively. Ballast 26, terminal block 27 and lamp socket 2
8 are electrically connected by an electric wire (not shown).
A pair of screw holes 29 are formed in the lamp socket mounting portion 24. The power supply line insertion hole 30 is provided in the center of the chassis body 23, and the bolt insertion holes 3 are provided on both sides thereof.
1, 31 are formed.

FIG. 2 is an enlarged sectional front view of essential parts showing the fixing means 3 of the above embodiment. Fixing means 3 as an adapter
Are attached to the upper surface of the chassis body 23. The fixing means 3 includes the adapter body 32 and the adapter body 3
It is composed of a bolt 33 fixed to 2. The adapter body 32 is formed by bending, for example, an iron plate so that it can be fixed to the fixing metal fitting 81 of the existing instrument body 73. Specifically, a rectangular flat plate-like substrate portion 35, a front engaging portion 36 that extends from a central portion of one end portion of the substrate portion 35 and is bent, and extends from the other end portion of the substrate portion 35. A rear bent portion 37 that is bent and formed, and a bolt mounting portion 38 that extends from the rear bent portion 37 are formed.

Reference numeral 4 is a reflector, which has a substantially box-like shape with an irradiation opening 45 on the lower surface. The reflector 4 is provided with a substrate portion 46 located above the irradiation opening 45. Further, in the central portion of the substrate portion 46, the auxiliary reflector portion 4 is provided which is recessed downward in the longitudinal direction so as to have a substantially V-shaped cross section.
7 are formed and are located on both sides of both ends of the auxiliary reflector portion 47, respectively.
Lamp socket insertion port 48 through which 8 is inserted, and decorative screw 5
A through hole 51 for a screw through which 0 is inserted is formed.

Next, a procedure for attaching the lighting fixture of the first embodiment to the existing fixture main body 73 will be described.

When updating the existing lighting fixture 71, first, the decorative screw 74 is removed, the existing lamp L'and the reflector 75 are removed, and the case 76 of the existing fixture body 73 is exposed. . And the existing reflector 7 removed
Discard only 5. Then, the power supply line connected to the terminal block in the case 76 is disconnected.

Next, the fixing means 3 is fitted over the respective fixing metal fittings 81 of the existing instrument body 73. If necessary, the decorative screw 74 may be screwed into the fixing metal fitting 81 to fix the fixing means 3.

Then, the bolt 33 of the fixing means 3 is inserted into the bolt insertion hole 31 formed in the chassis body 23, and a nut (not shown) is screwed from below to tighten the base body 2.
In this way, the chassis 22 is fixed to the existing instrument body 73 side via the fixing means 3 so that the vertical separation distance can be adjusted. The distance between the fixing bracket 81 and the chassis body 23 is set to be slightly larger than the thickness of the head 74a of the decorative screw 74, and the head 74a of the decorative screw 74 is sandwiched so that the decorative screw 74 is It is designed to be retained.

FIG. 3 is a schematic front view showing a state where the base body 2 of the above-mentioned embodiment is attached to the existing instrument main body 73.
By replacing the F cable 8b connected to the terminal block 8a of the existing equipment main body 73 with the terminal block 27 of the chassis 22, the electrical connection work can be facilitated and the electrical wiring work can be shortened.

FIG. 4 is a schematic sectional side view showing a state in which the reflector 4 is attached to the base 2 of the above-mentioned embodiment. By inserting the decorative screw 50 into the through hole 51 for each screw from the lower side, screwing the reflector 4 into the screw hole 29 of the chassis 22, and tightening it,
The reflector 4 is fixed to the chassis 22. Further, the lamp socket 28 is inserted into the lamp socket insertion port 48 of the reflector 4 and is provided so as to project inside the reflector 4. Further, a ballast 26 and a terminal block 27 attached to the bottom surface of the chassis 22.
Are housed inside the auxiliary reflector 47, that is, above the reflector 4.

Then, the straight tube type fluorescent lamp L is mounted in the lamp socket 28. This straight tube fluorescent lamp L is exclusively for high frequency lighting, and the ballast 26 has 10 to 100 kHz.
Since a high-frequency lighting inverter system that outputs the high-frequency power is used, the light output of the lighting fixture can be improved and the power consumption can be reduced as compared with the ballast using an iron core. Further, the base 2 can be made thinner and smaller, and the burden of weight on the existing instrument body 73 can be reduced.

As described above, according to the luminaire of the first embodiment, the luminaire 1 is mounted by using the existing luminaire main body 73, so the existing luminaire main body 73 is arranged in the opening 82 of the ceiling 72. It is not necessary to remove it as it is, the amount of waste is small, and it is possible to upgrade to a lighting fixture that improves the appearance of the lighting fixture and performance such as floor illuminance.

Further, since the chassis 22 of the base body 2 is attached to the existing instrument body 73 through the fixing means 3,
By preparing the fixing means 3 having various dimensions in the horizontal direction and the height direction, only one kind of the chassis 22 and the reflector 4 need to be prepared, which enhances the versatility of the base body 2 and the common use of parts. Can be promoted.

Furthermore, since the reflector 4 is fixed to the base body 2 by using the decorative screw 50, the reflector 4 can be attached with good appearance and can be easily worked without using a jig or the like.

FIG. 5 is a perspective view showing the base 2 which is an essential part of the second embodiment. In this embodiment, the ballast 26 and the terminal block 27 are arranged on the upper surface of the chassis 22, and project inside the case 76 of the existing instrument body 73 to be housed therein.

FIG. 6 is a schematic bottom view showing the third embodiment. In this embodiment, the fixing means 55 hooked on the upper side of each fixing member 81 is slidably connected on the upper side of the chassis 22. In this way, by making the interval of the fixing means 55 variable, the installation position of the fixing metal fitting 81 arranged in the existing fixture main body 73 is changed to the existing lighting fixture 7.
Even if different for each model, the base body 2 can be attached by sliding the fixing means 55 and adjusting the position, and it is possible to cope with updating of various types of lighting equipment.

7 and 8 are a schematic bottom view and a partially cutaway schematic front view showing a fourth embodiment. In this embodiment, a slide portion 22a which is slidable in the longitudinal direction of the chassis 22 by the length of the fixing means 3 is provided in the middle portion of the chassis 22 of the base 2. In the procedure of attaching the base body 2 according to this embodiment, first, the fixing means 3 is attached to the chassis 22 in advance, and the longitudinal direction of the chassis 22 is shortened. Then, the chassis 22 is raised so as to be positioned to the height of the fixing metal fitting 81 of the existing instrument body 73, the chassis 22 is extended, and the fixing means 3 is fixed to the fixing metal fitting 81.
Fit on the upper side of. Thus, the fixing means 3 and the chassis 2
It is possible to perform simple attachment without attaching to 2. Further, in this embodiment, the reflector 4 is provided with the decorative screw 5.
0 is screwed and fixed in a screw hole 81a provided in the fixing metal fitting 81. In this embodiment, the slide portion 22a is attached to the chassis 2
Although it is provided at one place of the intermediate portion of No. 2, the slide portion 22a may be provided near each adapter 31.

FIG. 9 is a schematic sectional side view showing the fifth embodiment. In the above-described first to fourth embodiments, the fixing means 3 is attached to the existing equipment body 73, the base body 2 is fixed to the existing equipment body 73 side via the fixing means 3, and the reflector 4 is attached to the base body 2. The mounting configuration has been described. In this embodiment, there is provided a reflector 6 which has substantially the same shape as the existing reflector and has the same lower surface dimension and also serves as the base 2. At the center of the upper surface of the reflector 6 in the width direction, the ballast 26 and the terminal block 27 are arranged at positions not contacting the ballast 78 of the existing instrument body 73. In addition, a ballast 26 and a terminal block 27 are provided at both ends in the longitudinal direction.
It is also possible to mount two sets of lamp sockets 28 that are electrically wired to. The reflector 6 can be attached to the existing instrument body 73 by using a decorative screw as the fixing means 3 by using the same component as the existing reflector or by providing a screw hole at substantially the same position. Becomes The lamp socket 14 attached to the existing fixture body 73 may be removed or the existing fixture body 7 may be removed.
3 Do not use by storing inside. In this embodiment, it is possible to easily and inexpensively update (renewal) the luminaire simply by attaching the reflector 6 that also serves as the base 2 and replacing the power line.

FIG. 10 is a schematic sectional side view showing the sixth embodiment. In this embodiment, the ballast 26 and the terminal block 27 are arranged in the center of the lower surface of the reflector 6 in the width direction, and the ballast 26 and the terminal block 27 have a substantially V-shaped cross section. Cover with. Further, the ballast 26 is an electronic ballast mainly composed of a high frequency inverter dedicated to high frequency lighting or a high output type electronic ballast,
It can be thinned and thinned, and the central reflector 62 can be miniaturized.
For the straight tube fluorescent lamp L, power saving can be realized by using a fluorescent lamp dedicated to high frequency lighting, and
It is possible to easily improve the illuminance and the visual environment when updating (renewing) the luminaire. Also, ballast 2
6 and the terminal block 27 are attached to the lower surface of the reflector 6 so that the ballast 78 in the case 76 of the existing instrument body 73
The ballast 26 and the terminal block 27 can be arranged irrespective of the position and size of the above.

Further, the reflector 6 of the fifth and sixth embodiments.
When using, a fixing adapter (not shown) may be interposed between the reflector 6 and the existing instrument body 73. Then, by providing the fixing position of the fixing adapter so that the vertical distance or the horizontal distance can be adjusted, one reflector 61 can be provided for various existing fixture bodies 3 having different reflector mounting pitches. It becomes possible to attach it, and the parts can be shared.

11 to 13 show a seventh embodiment, FIG. 11 is a schematic sectional side view, FIG. 12 is a partially omitted sectional front view, and FIG. 13 is a top view. FIG. 11 is BB of FIG.
Section, FIG. 12 shows an AA section of FIG. In this embodiment, a fluorescent lamp L dedicated for high-frequency lighting, which has a smaller tube diameter than the straight tube fluorescent lamp L'installed in the existing lighting fixture 71.
Is a lighting fixture to be attached. Reflector 6 also serving as the base body 2
The diameter of the straight tube fluorescent lamp L to be attached to the lamp socket 28 of No. 2 is 25.5 mm, which is smaller than that of the conventional 28 mm, 32.5 mm, or 38 mm. The installation space and the working space when replacing the fluorescent lamp can be made more spacious. That is, in the illuminating fixture for updating, if each component is attached to the upper side of the reflector 6, it may not be possible to abut the existing fixture main body 73 or the component of the existing fixture main body 73 so that the existing reflector is not installed. Each component must be arranged inside the reflector 6 having the same size as the above. However, by using the straight tube fluorescent lamp L having a relatively small tube diameter, it is possible to secure a storage space for each component and also a finger insertion space when the straight tube fluorescent lamp L is replaced. The installation work can be facilitated.

Further, this straight tube type fluorescent lamp L, which is exclusively for high frequency lighting, is used for high frequency lighting within a range of 10 to 100 kHz, so that it is lit with commercial AC power of 50 Hz or 60 Hz. Conventional diameter 28
mm, 32.5 mm, or 38 mm straight tube fluorescent lamp, a higher output light can be obtained, and highly efficient lighting can be achieved to save power.

If the existing lighting fixture 71 is installed, the JIS illuminance standard at that time is the current standard (for example, about 700 to 1500 lx in an office for fine visual work).
If the illuminance is designed to be lower than the required illuminance, you will not be able to obtain the required illuminance even if you replace the lighting fixture of the same model with a new one. Therefore, in this way, the straight tube fluorescent lamp L attached to the renewal luminaire is lit exclusively for high-frequency lighting by using a ballast mainly composed of a high-frequency inverter, so that the same installation as the existing luminaire can be achieved. The illuminance can be improved more than ever with the number of units, and the lighting environment can be improved by simply replacing the lighting fixture of this embodiment.

Also in the seventh embodiment, the decorative screw used in the existing lighting fixture 71 is used as the fixing means 3 for attaching the reflector 6 to the existing fixture body 3. Further, a ballast 26 and a terminal block 27, which are inverter devices as lighting components, and a lamp socket 28 are attached to the inside of the reflector 6. The ballast 26 and the terminal block 27 are attached to the top plate portion 6a of the reflector 6 and are covered with the central reflector 62.
The lamp socket 28 is attached to socket bases 28a attached to both ends of the top plate portion 61a.

Further, the top plate portion 6a of the reflector 6 is provided with a substantially rectangular terminal block window hole 6b. The terminal block 27 has a plurality of power line connection holes 27a into which the F cables 8b as power lines are inserted and connected.
It is fixed to the top plate portion 6a of the reflector 61 by a terminal base frame 27b having a substantially U-shaped cross section so as to face b. Therefore, the power supply line connection hole 27a of the terminal block 27 is exposed on the upper surface of the reflector 6 through the terminal block window hole 6b. The connection of the power supply line is performed by inserting the F cable into the power supply line connection hole 27a through the terminal block window hole 6b, and can be completed without performing a special wiring work such as removing the central reflector 62.

It should be noted that the terminal block 27 corresponds to the existing instrument main body 73.
It is desirable that the upper surface of the terminal block 27 is substantially flush with the upper surface of the top plate portion 6a or recessed inward so as not to come into contact with the protrusions on the side and interfere with each other. In addition, the reflector 6
A reflector suspension chain 66 is attached to the power supply line connection to the base body 2 or the existing body 7 of the base body 2 is attached to the base body 2.
It is possible to connect the reflector suspension chain 66 to the existing instrument main body 73 and temporarily suspend and support the base body 2 on the existing instrument main body 3 when the base 2 is attached to the existing instrument main body 73. Further, the screw through holes 51, which are formed at four positions of the reflector 6 and into which the decorative screws as the fixing means 3 are inserted, are respectively provided in the reflector 61.
Is formed in the shape of an oval hole having the longitudinal direction as the longitudinal direction.

Further, the flange portion 6c of the reflector 6 which is in contact with the decorative ceiling 72 is formed wider than the flange portion of the reflector of the existing lighting equipment 71, and is formed by the flange portion of the existing reflector. It is possible to cover the dirt boundary of the decorative ceiling 72,
It does not spoil the aesthetics of the ceiling.

14 and 15 are a partially omitted perspective view and a schematic sectional front view showing an eighth embodiment. The chassis 22 of the base body 2 of this embodiment has a shorter longitudinal dimension than the case 76 of the existing instrument body 73, and both ends are fitted and retained from above by the pair of fixing fittings 81 of the existing instrument body 73. It has become. In addition, the terminal block 27 and the ballast 26 are attached to the upper surface of the chassis 22 at positions not contacting the ballast 78 and the terminal block 78a of the existing instrument main body 73, and a plurality of ballasts are provided in the ballast 26. The lamp socket 28 is connected via the electric wire 26a. The lamp socket 28 is fitted and attached to the lamp socket attachment portions 76a provided at both ends of the case 76. Therefore, it is not necessary to newly provide a fixture for fixing the lamp socket 28 on the fixture body 73 side, and the mounting position of the lamp socket 28 is not changed. It becomes possible to use the body as it is, and the equipment cost can be reduced.

FIG. 16 is a schematic sectional front view showing the ninth embodiment. The fixing means 3 of this embodiment includes the hook 5 that is locked to one of the pair of fixing fittings 81 of the existing instrument body 73.
1 and an engaging means 52 that engages with the other, and is disposed on the upper surface of the base 2. The hook 51 and the engaging means 52 are both formed by bending a metal plate. The engaging means 52 may be formed of only a leaf spring or may be formed by combining with a component such as an engaging claw. On the free end side of the engaging means 52, an engagement releasing operation portion 53 that is rocked by engagement is formed. The operating portion 53 projects inwardly of the reflecting surface from a slit or the like (not shown) formed in the reflector 6 integrally provided on the base body 2 so that the releasing operation can be swung.

To mount the base body 2, first, the base body 2 is tilted and lifted to the existing instrument main body 73 side, and the hook 51 is hooked on one fixing metal fitting 81. Then, while pushing up the base body 2 so that the base body 2 becomes horizontal, the engaging means 52 is engaged with the other fixing metal fitting 81. In this way, the base body 2 is fixed to the existing instrument body 73. When removing the base body 2,
The engagement of the engaging means 53 may be released by grasping the operating portion 53 and swinging it against the biasing direction.

In this embodiment, the fixing means 3 has hooks 51.
Although the combination of the engaging means 52 and the engaging means 52 has been described, both may use the engaging means 51.

Although the above-mentioned embodiment relates to a lighting fixture using a straight tube type fluorescent lamp, the present invention can also use a single-ended type fluorescent lamp. In this case, if the fluorescent lamp mounted on the existing lighting fixture is a straight tube type, a lighting fixture for renewal combining a single-ended metal fluorescent lamp may be prepared according to its length.

[0060]

The luminaire according to the first aspect can be renewed (renewed) to a new luminaire without having to remove the existing ceiling-embedded luminaire main body while it is disposed in the ceiling-embedded hole. Therefore, the installation work can be performed very easily, the facility cost can be suppressed, the amount of waste at the time of renewal is small, and the appearance is improved.

In the luminaire according to the second aspect, it is not necessary to remove the existing ceiling-embedded luminaire main body with the ceiling-embedded luminaire main body being installed in the ceiling-embedded hole. Since you can update to new lighting equipment with
The installation work is extremely easy and the equipment cost can be reduced, less waste is generated during renewal, and the appearance is also improved.

In the luminaire according to the third aspect, it is not necessary to remove the existing ceiling-embedded luminaire main body with the ceiling-embedded luminaire main body installed in the ceiling-embedded hole. Since you can update to new lighting equipment with
Installation work can be done very easily, equipment costs can be kept low, there is little waste at the time of renewal, and the appearance is also improved. Furthermore, because the ballast and terminal block are attached to the bottom surface of the reflector, the ballast and terminal block can be installed regardless of the position or size of parts such as the ballast that was installed in the existing ceiling-embedded lighting fixture body. They can be arranged and the power supply line can be directly connected from the upper surface of the reflector, further improving the mounting workability.

The lighting equipment of claim 4 is the lighting equipment of claims 1 to 3.
In addition to the effect of any one of the lighting fixtures described above, the high-frequency dedicated fluorescent lamp lights up at high frequencies, so the power consumption of the updated new lighting fixtures is reduced, and the light output is improved. It is possible to increase the floor illuminance without increasing the number of units.

The luminaire of claim 5 is one of claims 1 to 4.
In addition to the effect of any one of the lighting fixtures, since the base body is fixed by utilizing the reflector mounting hole of the existing fixture body,
It is possible to use a fixing means such as a decorative screw that has been used in an existing lighting fixture, without requiring a special fixing means.

The luminaire according to claim 6 is the lighting device according to any one of claims 1 to 4.
In addition to the effect of the lighting fixture according to any one of the aspects, since the base body is engaged and fixed to the existing fixture body by the engaging means,
The mounting of the base body is further simplified.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional front view of essential parts showing the fixing means of the above embodiment.

FIG. 3 is a schematic front view showing a mounted state of the base body according to the embodiment.

FIG. 4 is a schematic cross-sectional side view showing a state in which a reflector is attached to the base body of the above embodiment.

FIG. 5 is a perspective view showing a base body which is a main part of a second embodiment of the present invention.

FIG. 6 is a schematic bottom view showing a third embodiment of the present invention.

FIG. 7 is a schematic bottom view showing a fourth embodiment of the present invention.

FIG. 8 is a schematic front view of the same.

FIG. 9 is a schematic sectional side view showing a fifth embodiment of the present invention.

FIG. 10 is a schematic sectional side view showing a sixth embodiment of the present invention.

FIG. 11 is a partial sectional side view showing a seventh embodiment of the present invention.

FIG. 12 is a partially omitted sectional front view of the same.

FIG. 13 is a top view of the same.

FIG. 14 is a partially omitted perspective view showing an eighth embodiment of the present invention.

FIG. 15 is a schematic sectional front view of the same.

FIG. 16 is a schematic cross-sectional front view showing a ninth embodiment of the present invention.

FIG. 17 is a partial cross-sectional side view showing a ceiling-embedded luminaire of a first conventional example.

FIG. 18 is a sectional front view of the main part of the same.

[Explanation of symbols]

 2 ... Base, 3 ... Fixing means, 4, 6 ... Reflector, 26 ... Ballast, 27 ... Terminal block, 28 ... Socket, L ... Straight tube fluorescent lamp.

Claims (6)

[Claims] 1. A slender base body which can be housed in an existing ceiling-embedded luminaire main body; a pair of sockets arranged at both end portions of the lower surface of the base body; and a ballast arranged at a central portion of the lower surface of the base body. A power supply line is directly inserted from above the base body and fixed to the base body so that the power source line can be connected to the base body, and a terminal block in which necessary electric parts arranged on the base body are wired; Securing means for securing to the recessed luminaire body;
A reflector having a recess for covering the ballast, a peripheral edge of which abuts on the lower surface of the ceiling embedding hole, and which is detachably attached to the lower surface of the base; and a straight pipe detachably mounted between the sockets. And a fluorescent lamp. 2. An elongated base body which can be housed in an existing ceiling-embedded luminaire main body and which also serves as a reflector whose peripheral edge covers the peripheral edge of the ceiling opening; A pair of sockets provided; a ballast provided at an intermediate portion of the upper surface of the base; a power supply line is directly inserted from above the base, fixed to the base so as to be connectable, and provided on the base A terminal block wired with required electrical components, a fixing means for fixing the base body to an existing ceiling-embedded luminaire, and a straight tube fluorescent lamp detachably mounted between the sockets; A lighting fixture comprising: 3. An elongated base body which can be housed in an existing ceiling-embedded luminaire body and which also serves as a reflector whose peripheral edge covers the peripheral edge of the ceiling opening; A pair of sockets arranged; a ballast arranged at the center of the lower surface of the base; a power supply line directly inserted from above the base, fixed to the base so that it can be connected, and mounted on the base A terminal block wired with the required electrical components; a fixing means for fixing the base body to the existing ceiling-embedded luminaire body; and a straight tube fluorescent lamp detachably mounted between the sockets. A luminaire, which is attached to a base so as to cover the ballast, and whose outer surface facing the fluorescent lamp has a reflecting function. 4. The luminaire according to claim 1, wherein the straight tube fluorescent lamp is a fluorescent lamp exclusively for high frequency lighting, and the ballast is a ballast having a high frequency inverter as a main component. . 5. The lighting apparatus according to claim 1, wherein the fixing means is configured to fix the base body by utilizing a reflector mounting hole of an existing lighting apparatus main body. . 6. The fixing means is disposed on the upper surface of the base,
The luminaire according to any one of claims 1 to 4, which is an engaging means that can be engaged with an existing luminaire main body.