JP2002358814A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light-weighted lighting device with few stress which can be easily assembled. SOLUTION: The lighting device comprises a reflection frame 4 made of resin, composed of one opening end part 4b for light projection surrounded by a frame-shaped reflection frame main body 4a, the other opening end part 4c located opposite to the one opening end part, and a reflection surface; a device main body 2 made of metal having a mounting opening, forming an inner surface of a part closing the other opening end part, by making the reflection frame being mounted in a state that the other opening end part is closed; and a device mounting plate 3 made of metal fixed to the device main body in a state of being fitted to the mounting opening of the device main body, having device mounting holes 14a, 14b to which, the metal fittings to be mounted to a device mounting wall, are mounted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus suitable for direct ceiling mounting, ceiling mounting, and the like.

[0002]

2. Description of the Related Art Heretofore, as an example of this type of lighting equipment, there is a lighting equipment which is configured by attaching a sheet metal reflecting plate to a sheet metal fixture body such as an iron plate by screwing or the like. In this reflector, for example, a rectangular frame-shaped reflector and a top plate forming a top plate that closes the other end of the opening opposite to the light emitting opening end are integrally formed by sheet metal processing such as an iron plate. The reflector is attached to the instrument body by, for example, screwing the unit to the instrument body. The lighting fixture configured as described above is directly mounted on a fixture mounting wall such as a ceiling wall, or is inserted into a fixture mounting opening formed in the ceiling wall and suspended on the ceiling wall by a mounting bracket such as a suspension bolt. It is buried in the ceiling by holding it.

[0003] In such a state where the lighting fixture is hung on the ceiling wall by the hanging bolts, the lighting fixture body is easily deformed by the tensile force of the hanging bolts. The lighting fixture body is formed of an iron plate having a thickness of 0.8 mm or more.

[0004]

However, in such a conventional luminaire, since the luminaire main body and the reflection plate are both made of sheet metal such as an iron plate, the weight of the luminaire itself becomes heavy. For this reason, the load on the fixture mounting wall such as the ceiling wall increases, and the workability of processing and assembling each of these sheet metal is further reduced with the enlargement of the fixture body and the reflector plate, while the cost is reduced. However, there is a problem that the weight of the entire lighting fixture increases more and more.

As a result, in the case of the ceiling-mounted type, the size and number of mounting brackets for mounting the fixture main body, which supports the load of the entire lighting fixture, to the fixture mounting wall, such as a ceiling wall, are increased. When the lamp is fastened to the lighting fixture main body, the deformation of the mounting hole portion due to the tightening force is transmitted to the reflection frame, and a gap is generated between the fixture mounting wall surface and the reflection frame, thereby causing a problem that the appearance is impaired. In addition, even in the case of the ceiling embedded type, there is a problem that the size and number of the suspension bolts for suspending the apparatus main body are increased.

On the other hand, in the case of small-sized lighting fixtures, there has been conventionally proposed one in which a reflector made of synthetic resin is screwed to the fixture body, but there is a problem that the screwing causes stress on the reflector.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a lighting fixture that is lightweight, easy to assemble, and has little stress.

[0008]

The invention according to claim 1 is
A light emitting opening end surrounded by a frame-shaped reflecting frame main body, a synthetic resin reflecting frame provided with an opening other end facing the light emitting opening end, and a reflecting surface; A metal appliance body having an attachment opening formed therein while being mounted in a closed state and forming an inner surface of a portion for closing the other end of the opening at least as a reflection surface; a state fitted in the attachment opening of the appliance body And a metal fixture plate formed with a fixture attachment hole for attaching a fixture attached to the fixture wall while being fixed to the fixture body.

According to the present invention, the reflection frame, which is a part of the reflection plate, is made of a lightweight synthetic resin, and the other end of the reflection side of the light emission opening end of the reflection frame is closed. Is also used for the inner surface of the instrument body, so that the number of main components can be reduced to, for example, three pieces of the reflection frame, the instrument body, and the instrument mounting plate. For this reason, it is possible to reduce the weight of the entire luminaire and the workability of processing or assembling, and to reduce the cost.

The top plate of the reflection frame generally receives a large amount of ultraviolet rays from a light source (lamp) and is easily exposed to high temperatures. However, the top plate of the reflection frame is durable against these ultraviolet rays and high temperatures. Since it is also used as a part of the highly irradiating metal body of the metal, the strength and durability of the reflector can be improved.

Further, a mounting bracket such as a mounting bracket for directly attaching to a ceiling or a hanging bolt for hanging from a ceiling is inserted into a fixture mounting hole of a fixture mounting plate which is a separate body from the lighting fixture main body and the reflection frame. Since it is fastened and fixed with nuts etc., even if the instrument mounting plate pulled by this mounting bracket is distorted, the distortion stops only on the instrument mounting plate, and the distortion is transmitted to the instrument main body and the reflection frame. Can be reduced.

For this reason, it is possible to prevent or reduce the deterioration of the aesthetic appearance caused by the deformation of the reflection frame and the generation of a gap between the reflection frame and a fixture mounting surface such as a ceiling wall.

In general, when a plurality of fixture mounting holes through which fittings such as hanging bolts are inserted are formed, the strength of the periphery of these mounting holes is reduced. Deformation of the instrument mounting plate itself can also be achieved by partially increasing the strength of the instrument mounting plate only by increasing the thickness of the metal instrument mounting plate, etc. by forming it from a separate member from the instrument body. In addition to being able to reduce the weight, it is not necessary to reinforce the entire lighting fixture body by increasing the plate thickness of the entire lighting fixture body, so that the weight of the entire lighting fixture can be reduced.

According to a second aspect of the present invention, the device mounting plate is provided at both ends in the longitudinal direction between both fastening portions fastened and fixed to the reflection frame via the device main body via the device main body and the device mounting hole. 2. The lighting device according to claim 1, wherein each of the portions has a concave portion that is concave in the width direction.

According to the present invention, when both longitudinal ends of the fixture mounting plate are fixed to the reflection frame via the fixture main body by tightening the fittings such as fastening screws, the elastic deformation due to the tightening force causes the fixture mounting plate to undergo elastic deformation. Although the elastic deformation is transmitted to the instrument mounting hole, the elastic deformation is absorbed by the elastic deformation in the widthwise concave portion at the side end of the instrument mounting plate. Can be prevented beforehand.

According to a third aspect of the present invention, there is provided the lighting fixture according to the first or second aspect, wherein the fixture main body is sandwiched between the fixture mounting plate and the reflection frame.

According to the present invention, the fixture body is sandwiched between the fixture mounting plate and the reflection frame by, for example, jointly fastening the fixture mounting plate to the reflection frame via the fixture main body with the mounting bracket such as mounting screws. In addition to easy fastening of these three members, even when a bracket such as a nut for tightening a mounting bracket such as a screw is exposed on the inner surface side of the appliance main body, the V cover of the appliance main body is covered so as to cover the fastener. By attaching to the inner side, it is possible to easily prevent the appearance of these fastening portions from being reduced in appearance due to appearance.

According to a fourth aspect of the present invention, there is provided a socket unit in which a base of a fluorescent lamp is detachably mounted, and a socket having a power supply unit electrically connected to a power receiving unit of the base is provided. And a plurality of projections protruding from an outer surface of the socket portion facing the instrument mounting wall and facing the instrument mounting wall in a state where the instrument body is attached to the instrument mounting wall. The lighting device according to any one of claims 1 to 3, wherein:

According to the present invention, when the fluorescent lamp is attached to the lighting fixture by fitting the base of the fluorescent lamp into the socket of the lighting fixture after being attached to the fixture mounting wall such as the ceiling wall, the fixture main body is used. The socket part and its surroundings are about to deform, but the tip surfaces of a plurality of convex parts such as dowels protruding from the outer surface of the appliance body on the back side of this socket part adhere to the appliance mounting wall such as the ceiling wall Therefore, the deformation of the device main body can be prevented or suppressed.

Further, since the plurality of projections of the instrument main body are in close contact with the mounting face of the instrument mounting wall, a gap can be formed between the outer surface of the instrument main body and the mounting face of the instrument mounting wall. For this reason, since part of the heat generated by the fluorescent lamp and its lighting circuit can be radiated from the gap, the heat radiation can be improved.

Further, since the distal end surfaces of the plurality of projections of the instrument main body are in close contact with the mounting wall in a point-like manner, the entire outer surface of the instrument main body can be more easily brought into close contact with the mounting wall than the entire surface. It is possible to enhance the mounting strength of the device main body to the device mounting wall surface.

According to a fifth aspect of the present invention, the socket portion of the reflection frame has a socket fitting hole for fitting and fixing a plurality of sockets by one hole. A lighting device according to any one of the above.

In general, when one socket fitting hole is formed in each reflecting frame for each lamp socket,
When the plurality of fitting holes are close to each other, the strength of the reflection frame between the fitting holes decreases, so it is necessary to sufficiently separate adjacent socket holes. This leads to an increase in the size of the reflection frame.

However, according to the present invention, since a plurality of sockets are fitted into one socket fitting hole, the size of the top plate of the reflection frame can be reduced, and furthermore, it can be reduced accordingly. The size of the reflection surface can be increased.

According to a sixth aspect of the present invention, there is provided an apparatus main body, wherein slits extending along the longitudinal direction of the apparatus mounting plate are provided on both sides of both ends in the width direction of the apparatus mounting plate fitted and fixed in the mounting opening. The lighting device according to any one of claims 1 to 5, wherein

According to the present invention, when a fitting such as a suspension bolt is inserted into the fixture mounting hole of the fixture mounting plate and a nut or the like is fastened and fastened to the insertion end, the tightening force and the tension of the fitting are pulled. Even if the instrument mounting plate is elastically deformed by the force, the deformation force is absorbed by the slits on both sides in the longitudinal direction of the instrument mounting plate, so that transmission to the instrument body can be prevented or reduced. For this reason, deformation of the instrument body can be prevented or suppressed.

According to a seventh aspect of the present invention, there is provided an apparatus main body including a plurality of lamp holders for detachably holding a plurality of fluorescent lamps, wherein the mounting positions of the two lamp holders for respectively holding adjacent fluorescent lamps are changed. The lighting apparatus according to any one of claims 1 to 7, wherein the lighting apparatuses are shifted from each other in the axial direction.

According to the present invention, the lamp holders for holding the adjacent fluorescent lamps in a detachable manner are located at positions shifted from each other in the axial direction of the fluorescent lamps. It can be easily and quickly attached and detached without interference from the lamp holder.

The invention according to claim 8 is characterized in that the reflection frame has a heat radiating hole which penetrates the inside and outside of the reflection frame near the fluorescent lamp mounted on the socket. It is a lighting fixture of any one of -7.

According to the present invention, the heat generated by the fluorescent lamp or the like can be radiated from the heat radiation holes of the reflection frame, so that the heat radiation can be improved.

According to a ninth aspect of the present invention, there is provided the luminaire according to any one of the first to eighth aspects, wherein the reflective frame has a reflective surface that expands with an outwardly convex arc surface. .

According to the present invention, the light output from the fluorescent lamp can be arbitrarily controlled by the arc-shaped reflecting surface together with the reflecting surface of the inner surface of the reflecting frame and the inner surface of the fixture body forming the ceiling. Therefore, optical design can be easily performed. Further, since the reflection frame is made of a synthetic resin, the arc-shaped reflection surface at the inner corner can be easily formed by molding.

[0033]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
A description will be given based on FIG. In these figures, the same or corresponding parts are denoted by the same reference characters.

FIG. 3 is an overall front view of the lighting fixture 1 according to one embodiment of the present invention, FIG. 4 is a perspective view of the lighting fixture 1 as viewed from below, and FIG. FIG. 6 is a perspective view when viewed from the side, FIG. 6 is a perspective view when the entire lighting fixture 1 shown in these figures is overlooked from above, FIG. 1 is an exploded front view of the lighting fixture 1, and FIG. It is a partial side view.

As shown in these figures, the lighting fixture 1 is, for example, a direct mounting type which is directly attached to a fixture mounting wall such as a ceiling wall (not shown) or a lighting fixture 1 which is buried in a fixture mounting opening of the fixture mounting wall and is provided with a hanging bolt or the like. It is a lighting device suitable for an embedded type or the like that is hung by a metal fitting. The lighting device fits into a widthwise middle part of the device main body 2 made of a sheet metal such as a thin iron plate having a flat rectangular tube with a bottom opening. An appliance mounting plate 3 having a substantially I-shaped planar shape and a reflective frame 4 made of a synthetic resin having a rectangular frame shape are provided.

As shown in FIGS. 1, 4 to 7, the instrument body 2
Is a rectangular flat lid 2a, and each side (4
1) are bent at substantially right angles downward in FIG.
b, for example, four sockets 5 are arranged on one side wall (the upper left side wall in FIG. 4, the lower right side wall in FIG. 5) 2b at a required interval in the horizontal direction in FIG. For example, bases 6a of H-type fluorescent lamps 6 are detachably mounted on the sockets 5, respectively, and a power supply unit is detachably contacted with a power receiving unit (not shown) of the bases 6a to supply power.

The H-shaped fluorescent lamp 6 is made of, for example, a glass (not shown) of which two straight glass bulbs 6b and 6c, which are made of synthetic resin and are arranged substantially in parallel on an elliptical base 6a, are arranged side by side. The light source is integrally formed into a substantially H-shape by a communication pipe. However, the light source is not limited to the H-shaped fluorescent lamp 6 and is not limited to the shape. The number of the fluorescent lamps 6 may be one or more, and is not limited to the number.

As shown in FIG. 1, the apparatus main body 2 is provided with two lighting devices 7 for turning on and off the fluorescent lamps 6 at both inner side ends in the width direction, for example, an inverter lighting system. ing.

As shown in FIG. 1, FIG. 6 and FIG. 7, the appliance main body 2 is located on the back side of the socket portion where the socket 5 is disposed, that is, the outer surface of the appliance main body 2 (the upper surface in FIG. ), A plurality of dowels 8 each having a shape of a truncated cone, each of which is an example of a protruding portion, are respectively provided on an opposing surface opposing an appliance mounting wall surface such as a ceiling wall (not shown). These dowels 8 are also provided at required locations such as on the respective corners on the upper surface in FIG.

As shown in FIG. 6 and FIG.
Has a pair of substantially rectangular openings 9 and 9 formed at both ends in the width direction of the lid 2a. Each of the rectangular openings 9 is integrally connected to one end of the opening with a locking claw 9a bent in a U-shape, for example, inside the instrument body 2, and the U-shaped of the locking claw 9a. Reflective frame 4 on opening
The reflection frame 4 is detachably engaged with the locking portion 4d of the
a.

Further, these rectangular openings 9 are provided in the lid 2a.
A plurality of rectangular small locking holes 10 are respectively opened on both sides (up and down in FIG. 7), and the L-shaped small locking claws 11 provided on the reflection frame 4 are formed. The distal end portion is inserted, the L-shaped distal end portion is locked to the opening edge of the small locking hole 10, and the reflection frame 4 is supported by the lid 2 a of the instrument body 2. Note that reference numeral 7a in FIG. 7 denotes a metal partition for accommodating the lighting device 7, and a part thereof is exposed from each rectangular opening 9.

As shown in FIGS. 6 and 7, the instrument main body 2 is provided with a rectangular mounting opening 12 which is long in the longitudinal direction of the instrument main body 2 at an intermediate portion in the width direction (lateral direction in FIGS. 6 and 7). On the outer surface of the mounting opening 12, the metal appliance mounting plate 3 having a substantially I-shaped plane is disposed concentrically.

As shown in FIG. 7, the instrument mounting plate 3 is formed so that its longitudinal length is slightly longer than the longitudinal length of the instrument body 2, and its longitudinal ends 3a and 3b have a planar shape. Each is formed in a rectangular shape. The two rectangular portions 3a and 3b are connected to each other by a connecting portion 3c having a smaller width.
The width of the connecting portion 3c is formed to be slightly smaller than the width of the mounting opening 12 of the instrument body 2, and both widthwise ends of the connecting portion 3c and both widthwise ends of the mounting opening 12 are formed. A pair of left and right slits 13a, 1
3b is formed along the longitudinal direction of the connecting portion 3c. On the other hand, these rectangular ends 3a, 3b are provided with insertion holes 14a, 14b, for example, at the center thereof, through which mounting brackets such as mounting screws and bolts are inserted, and from both ends in the longitudinal direction of the appliance body cover 2a. Projecting tip 3a slightly projecting outward
1, 3b1 are bent in a hook shape along the both ends in the longitudinal direction of the device main body 2 (downward in FIGS. 1 and 6) to form a hook-like tip portion, and externally fitted to the device main body 2 It is fixed.

As shown in FIG. 1, a sheet metal is provided at both ends in the width direction of the connecting portion 3c of the device mounting plate 3 with a V projecting downward in FIG.
In the state where the V-shaped side ends 3d and 3e bent in a V-shape are integrally coupled, and the instrument mounting plate 3 is attached to the attaching opening 12 of the instrument main body 2, both sides in the width direction of the attaching opening 12 are provided. Is closed inside the instrument body 2. That is, the fixture mounting plate 3 is attached to the fixture opening 12 of the fixture main body 2.
The fixture body 3 and the reflection frame 4 are concentrically superimposed on each other, and the fixture body 3 is fixed to the fixture body 2 by jointly fastening the mounting screws and bolt nuts inserted into the screw insertion holes 14a, 14b of the rectangular ends 3a, 3a. In the state of being fastened and fixed to both sides of the longitudinal direction slits 13a, 13 extending substantially parallel to the longitudinal direction on both sides of both ends in the width direction of the connecting portion 3c of the instrument mounting plate 3.
b are formed, respectively, and the pair of slits 13a,
13 b is closed by a pair of left and right V-shaped side ends 3 d and 3 e of the instrument mounting plate 3 inside the instrument main body 2.

As shown in FIGS. 6 and 7, the instrument mounting plate 3
In the middle part in the longitudinal direction, for example, a plurality of instrument mounting holes 15 which are, for example, two keyhole-shaped through-holes are drilled at required intervals, while a power cord insertion hole 16 of a circular through-hole is drilled. I have. Each fixture mounting hole 15 is formed in a keyhole shape by integrally connecting a rectangular hole with a width smaller than the diameter of the circular hole to a keyhole shape, and is hung on a fixture mounting wall such as a ceiling wall (not shown). The free front end of a suspension bolt, which is an example of a mounting bracket, is inserted through a circular hole, and then the inserted front end is moved to a rectangular long hole, where it is fastened with a nut or the like, thereby fastening the appliance body 2. It is to be hung on the instrument mounting wall. A power cord (not shown) is inserted through the power cord insertion hole 16 so as to be electrically connected to the lighting devices 7 in the appliance main body 2.

The mounting plate 3 is provided at each end of the pair of rectangular ends 3a, 3b in both widthwise directions with respective insertion holes 14a, 1b.
4b, a pair of left and right cutout recesses 17 is provided on the inside in the longitudinal direction.
a and 17b are cut out and formed.

On the other hand, the reflecting frame 4 is formed by integrally molding the reflecting frame main body 4a into a rectangular frame shape with a synthetic resin such as PBT, and the light projecting opening 4b and the opening are formed in a rectangular shape by the reflecting frame main body 4a. The other end 4c is opened at both ends in the axial direction (vertical direction in FIG. 4), and the other end (upper end in FIG. 1) 4c is anastomosed with the inner surface 2c of the instrument body 2. . A part of the inner surface 2c of the instrument body 2 that closes the other end 4c of the opening is formed as a light reflecting surface.

That is, as shown in FIG.
The reference numeral a designates a flat rectangular tube portion 4a1 having both ends opened to form an almost an entire inner surface as a reflecting surface and anastomosed to the lower surface opening end of the appliance body 2 having a flat rectangular tube shape, and a lower portion in the figure of the flat rectangular tube portion 4a1. A lower flange portion 4a2 which forms a light emitting opening end 4b which is anastomosed to the opening end and expands in a tapered shape downward in the figure is integrally connected with a synthetic resin. The tapered reflecting surface is formed in an arc surface whose longitudinal cross-sectional shape is outwardly convex. The lower flange portion 4a2 has a lower end portion in FIG. 6 formed on a tapered surface that expands in a tapered shape, and the tapered expanded end is formed on a light emitting opening end 4b that emits light from the fluorescent lamp 6. . On the other hand, the flat rectangular tube portion 4a1 is formed at the other end 4c of the opening which is closed at the upper open end in FIG. In addition, the lower flange portion 4a2 is formed to have a size that conceals an unillustrated appliance mounting opening formed in a mounting wall such as a ceiling wall, and has an upper surface in FIG. It comes into close contact with the wall.

Then, as shown in FIG. 3, the reflection frame main body 4a
Are provided with substantially semicircular mounting ears 18a and 18b, respectively, on the inner surfaces at both ends in the vertical direction in the figure, and the pair of mounting ears 18a and 18b
Inserting holes 19a and 19b are provided for inserting screws (not shown) such as mounting screws and bolts, which are inserted into the insertion holes 14a and 14b of the two rectangular ends 3a and 3b, respectively. By tightening a nut (not shown), the fixture plate 3 and the fixture body 2 are fastened together and fixed to the reflection frame body 4a. That is, the fixture main body 2 is externally fitted and fixed to the lid 2a of the fixture main body 2, and the fixture main body 2 is fastened to the fixture mounting plate 3 and the reflection frame 4 by fastening the fittings inserted through the insertion holes 14a and 14b.
And it is designed to be pinched.

Further, as shown in FIG. 3, the reflecting frame 4 has an outwardly projecting arc-shaped reflecting surface 20 integrally formed on the inner surface of each corner of the frame-shaped main body 4a. The reflection frame 4 has an insertion hole through which the socket 5 is inserted, on one side wall of the frame-shaped main body 4a. In these socket insertion holes, for example, two sockets 5 are inserted and fixed in one socket insertion hole. Therefore, the four sockets 5 are respectively inserted and fixed in the two socket insertion holes.

Also, as shown in FIG.
A plurality of mounting fitting holes for fitting a plurality of mounting tongues (not shown) of a V cover 21 made of a synthetic resin having a V-shaped cross section shown in FIGS. 1 and 2 on both sides of the instrument mounting plate 3. 22 are provided. These mounting tongues are attached to the mounting ears 18 of the reflection frame 4 when the V cover 21 is mounted on the instrument body 2.
a, 18b, so that these mounting ears 18a, 18b are covered.
The aesthetic appearance can be prevented from lowering due to the appearance of b. As shown in FIGS. 4 and 5, the fixture body 2 is provided on its inner surface with a pair of lamp holders 23a and 23b for removably holding the fluorescent lamp 6 in a radial direction. The holders 23a and 23b are arranged at positions shifted from each other in the axial direction of the fluorescent lamp 6. In addition, on one side wall of the reflection frame 4 facing the tip of the fluorescent lamp 6,
A plurality of heat radiating holes 24 communicating with the inside and outside thereof are provided respectively.

Therefore, according to the lighting fixture 1, the reflection frame 4 is made of a lightweight synthetic resin, and the other end 4c of the reflection frame 4 on the opposite side of the light-emitting opening 4b is closed. The parts are also used by the inner surface of the instrument body 2, so that the number of main components is, for example, the reflection frame 4, the instrument body 2 and the instrument mounting plate 3.
Can be reduced to three pieces. For this reason, it is possible to reduce the weight of the lighting fixture 1 and the workability of processing or assembling, and to reduce the cost.

The top plate of the reflection frame 4 generally receives a large amount of ultraviolet rays from the fluorescent lamp 6 and is easily exposed to high temperatures. Since a part of the lid 2a of the highly durable metal irradiation device 2 is also used, the strength and durability of the reflector can be improved.

Further, a mounting bracket such as a mounting bracket for directly attaching to the ceiling or a hanging bolt for hanging from the ceiling is mounted on the fixture mounting hole 3 of the fixture mounting plate 3 which is separate from the lighting fixture main body 2 and the reflection frame 4. And fasten it with a nut or the like.
Even in the case where distortion occurs in the instrument mounting plate 3 pulled by the mounting bracket, the distortion is stopped only in the instrument mounting plate 3, and transmission of the distortion to the instrument main body 2 and the reflection frame 4 can be reduced. it can.

For this reason, it is possible to prevent or reduce the deterioration of the aesthetic appearance due to the deformation of the reflection frame 4 and the generation of a gap between the reflection frame 4 and a fixture mounting surface such as a ceiling wall.

In general, when a plurality of fixture mounting holes for inserting fittings such as hanging bolts are formed, the strength of the periphery of these mounting holes is reduced. Is formed as a separate member from the instrument body 2 to increase the thickness of the metal instrument attachment plate 3 and the like, thereby increasing the strength of the instrument attachment plate 3 alone. And the like, and it is not necessary to reinforce the entire lighting fixture body 2 by increasing the thickness of the entire lighting fixture body 2 or the like.
The overall weight and cost can be reduced.

When both longitudinal ends of the instrument mounting plate 3 are fixed to the reflection frame 4 via the instrument main body 2 by tightening a fastening fitting such as a fastening screw, the elastic deformation due to the tightening force causes the instrument mounting plate 3 to be elastically deformed. The elastic deformation is transmitted to the instrument mounting hole 15 because the elastic deformation is absorbed by the elastic deformation in the widthwise recesses 17a and 17b at the side ends of the instrument mounting plate. It can be prevented from being deformed.

Further, since the instrument body 2 is sandwiched between the instrument mounting plate 3 and the reflection frame 4, even if a metal fitting such as a nut for tightening a mounting metal such as a screw appears on the inner surface side of the tool main body 2, it is fastened. By attaching the V cover 21 to the inner surface side of the instrument main body 2 so as to cover the metal fitting, it is possible to easily prevent the appearance of these fastening portions from appearing and deteriorating the appearance.

Further, the base 5 of the fluorescent lamp 6 is attached to the socket 5 of the fixture body 2 after being attached to the fixture mounting wall such as a ceiling wall.
When the fluorescent lamp 6 is mounted by fitting the light source a into the socket 5, the socket 5 of the fixture main body 2 and its surroundings tend to be deformed. Since the tip surfaces of the plurality of projections such as the dowels 8 and the like are in close contact with the fixture mounting wall such as the ceiling wall, the deformation of the fixture body 2 can be prevented or suppressed.

Further, since the plurality of dowels 8 are in close contact with the mounting surface of the appliance mounting wall, a gap can be formed between the outer surface of the appliance main body 2 and the mounting surface of the appliance mounting wall. For this reason, part of the heat generated by the fluorescent lamp 6 and its lighting device 7 can be radiated from the gap, so that the heat radiation can be improved.

Further, since the tip surfaces of the plurality of dowels 8 of the appliance main body 2 are in close contact with the mounting wall in a point-like manner, the entire outer surface of the appliance main body 2 is more easily brought into close contact with the appliance mounting wall than the entire surface. Therefore, the mounting strength of the device main body 2 to the device mounting wall surface can be enhanced.

When one socket fitting hole is drilled for each lamp socket in the fixture body 2, if the plurality of fitting holes are close to each other, the space between the fitting holes is reduced. Since the strength of the device main body 2 decreases, it is necessary to sufficiently separate the adjacent socket holes. However, in that case, the size of the device main body 2 is increased.

However, since the luminaire 1 is configured to fit a plurality of sockets into one socket fitting hole, the top plate of the luminaire main body 2 can be reduced in size. Accordingly, the size of the reflection surface can be increased.

Then, the instrument mounting hole 15 of the instrument mounting plate 3
Then, when a mounting bracket such as a suspension bolt is inserted and a nut or the like is tightened and fastened to the insertion end thereof, even if the mounting plate 3 is elastically deformed due to the tightening force and the pulling force of the mounting bracket, the deformation is caused. Since the force is absorbed by the slits 13a, 13b on both sides in the longitudinal direction of the instrument mounting plate, it is possible to prevent or reduce transmission to the instrument main body 2. For this reason, the deformation of the instrument body 2 can be prevented or suppressed.

Further, since the lamp holders 23a and 23b for detachably holding the adjacent fluorescent lamps 6 and 6 are displaced from each other in the axial direction of the fluorescent lamp 6, the fluorescent lamp 6 is separated from the lamp holders 23a and 23b. When attaching and detaching, it is possible to attach and detach easily and quickly without being interfered by the adjacent lamp holders 23a and 23b.

Further, the heat generated by the fluorescent lamp 6 and the like is
Since the heat can be radiated from the plurality of heat radiating holes 24, the heat radiating property can be improved.

The light output from the fluorescent lamp 6 is arbitrarily controlled not only by the reflecting frame 4 and the reflecting surface of the inner surface of the fixture body 2 forming the ceiling thereof, but also by the arc-shaped reflecting surface 20 at the inner corner of the reflecting frame 4. Therefore, the optical design can be easily performed. Further, since the reflection frame 4 is made of a synthetic resin, the arc-shaped reflection surface 20 at the inner corner thereof can be easily formed by molding.

When the lighting fixture 1 is hung on a fixture mounting wall such as a ceiling wall, each side of the outline of the light emitting opening end 4b of the reflection frame 4 is slightly depressed inward due to the pulling force, and is formed into a concave arc shape. Because of the deformation, the outline of each side of the light projecting opening end 4b may be formed in advance in a convex arc shape capable of canceling out the arcuate deformation. According to this, when the luminaire 1 is hung on a ceiling wall or the like, the external shape of each side of the light projecting opening end 4b of the reflection frame 4 can be made substantially straight to improve the aesthetic appearance.

[0069]

As described above, according to the first aspect of the present invention, the reflection frame, which is a part of the reflection plate, is made of a lightweight synthetic resin, and the reflection-side opening of the light-projection opening end of the reflection frame. Since the other end is closed, that is, the top plate portion is also used as the inner surface of the instrument body, the number of main components can be reduced to, for example, three pieces of the reflection frame, the instrument body, and the instrument mounting plate. For this,
It is possible to reduce the weight of the entire luminaire and the workability of processing or assembling, thereby reducing costs.

The top plate portion of the reflection frame generally receives a large amount of ultraviolet rays from a light source (lamp) and is easily exposed to high temperatures. However, the top plate portion of this reflection frame is durable against these ultraviolet rays and high temperatures. Since it is also used as a part of the highly irradiating metal body of the metal, the strength and durability of the reflector can be improved.

Further, a mounting bracket such as a ceiling mounting bracket or a hanging bolt for hanging the ceiling is inserted into a fixture mounting hole of a fixture mounting plate which is separate from the lighting fixture main body and the reflection frame. Since it is fastened and fixed with nuts etc., even if the instrument mounting plate pulled by this mounting bracket is distorted, the distortion stops only on the instrument mounting plate, and the distortion is transmitted to the instrument main body and the reflection frame. Can be reduced.

For this reason, it is possible to prevent or reduce the deterioration of the appearance due to the deformation of the reflection frame and the generation of a gap between the reflection frame and the fixture mounting surface such as the ceiling wall.

In general, when a plurality of fixture mounting holes for inserting fittings such as hanging bolts are formed, the strength of the periphery of these mounting holes is reduced. Deformation of the instrument mounting plate itself can also be achieved by partially increasing the strength of the instrument mounting plate only by increasing the thickness of the metal instrument mounting plate, etc. by forming it from a separate member from the instrument body. In addition to being able to reduce the weight, it is not necessary to reinforce the entire lighting fixture body by increasing the plate thickness of the entire lighting fixture body, so that the weight of the entire lighting fixture can be reduced.

According to the second aspect of the present invention, when the both ends in the longitudinal direction of the fixture mounting plate are fixed to the reflection frame via the fixture main body by tightening the fasteners such as fastening screws, the elastic deformation due to the tightening force is reduced. The elastic deformation is transmitted to the instrument mounting hole of the instrument mounting plate, but the elastic deformation is absorbed by the elastic deformation in the concave portion in the width direction of the side end of the instrument mounting plate. Can be prevented from being deformed.

According to the third aspect of the present invention, the fixture body is fixed to the reflector frame via the fixture body together with the fitting frame such as a mounting screw, so that the fixture body is fixed to the fixture frame and the reflector frame. Since these three members are clamped, it is easy to fasten these three members, and even if metal fittings such as nuts for tightening mounting fittings such as screws are exposed on the inner surface side of the instrument main body, the V cover covers the fasteners. By attaching to the inner surface side of the instrument main body, it is possible to easily prevent the appearance of these fastening portions from being reduced in appearance due to the appearance thereof.

According to the fourth aspect of the present invention, when the fluorescent lamp is mounted on the lighting fixture by fitting the base of the fluorescent lamp into the socket of the lighting fixture after being mounted on the mounting wall such as the ceiling wall. The socket portion of the appliance body and its surroundings tend to deform, but the tip surfaces of a plurality of projections such as dowels protruding from the outer surface of the appliance body on the back side of the socket portion are attached to an appliance mounting wall such as a ceiling wall. , So that deformation of the instrument body can be prevented or suppressed.

Further, since the plurality of projections of the appliance main body are in close contact with the mounting surface of the appliance mounting wall, a gap can be formed between the outer surface of the appliance main body and the mounting surface of the appliance mounting wall. For this reason, since part of the heat generated by the fluorescent lamp and its lighting circuit can be radiated from the gap, the heat radiation can be improved.

Further, since the tip surfaces of the plurality of projections of the instrument main body are in close contact with the mounting wall in a point-like manner, the entire outer surface of the instrument main body can be more easily brought into close contact with the mounting wall than the entire surface. It is possible to enhance the mounting strength of the device main body to the device mounting wall surface.

According to the fifth aspect of the present invention, since a plurality of sockets are fitted into one socket fitting hole, it is possible to reduce the size of the top plate of the instrument body, and Accordingly, the size of the reflection surface can be increased.

According to the sixth aspect of the present invention, when a fixture such as a hanging bolt is inserted into the fixture mounting hole of the fixture mounting plate and a nut or the like is fastened to the insertion end portion by fastening,
Even if the instrument mounting plate is elastically deformed due to the tightening force and the tensile force of the mounting bracket, the deformation force is absorbed by the slits on both sides in the longitudinal direction of the instrument mounting plate, preventing or reducing transmission to the instrument body. can do. For this reason, deformation of the instrument body can be prevented or suppressed.

According to the seventh aspect of the present invention, since the lamp holders for detachably holding adjacent fluorescent lamps are displaced from each other in the axial direction of the fluorescent lamp, when the fluorescent lamp is detached from the lamp holder. Can be easily and quickly attached and detached without being interfered by an adjacent lamp holder.

According to the eighth aspect of the present invention, heat generated by the fluorescent lamp or the like can be radiated from the heat radiating holes of the reflection frame, so that the heat radiation can be improved.

According to the ninth aspect of the present invention, the light output from the fluorescent lamp is arbitrarily controlled by the arc-shaped reflecting surface together with the reflecting surfaces of the inner surface of the reflecting frame and the inner surface of the fixture body constituting the ceiling. Therefore, optical design can be easily performed. Further, since the reflection frame is made of a synthetic resin, the arc-shaped reflection surface at the inner corner can be easily formed by molding.

[Brief description of the drawings]

FIG. 1 is an exemplary view showing a disassembled lighting device according to an embodiment of the present invention, and a part of the lighting device is shown in a longitudinal section.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a front view of the lighting fixture shown in FIGS. 1 and 2 after assembly.

FIG. 4 is a perspective view of the lighting fixture shown in FIGS. 1 and 2;

FIG. 5 is a perspective view when viewed from left and right opposite directions in FIG. 4;

FIG. 6 is an overhead perspective view of the embodiment shown in FIG. 1 and the like.

FIG. 7 is a plan view of a lid portion of the instrument main body shown in FIG. 6 and the like.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Lighting fixture main body 2a Top lid of lighting fixture main body 2b Side wall of lighting fixture main body 3 Tool mounting plate 3a, 3b A pair of rectangular ends 3a1, 3b1 Bending of a pair of rectangular ends of a tool mounting plate. End 3c Connecting portion of the fixture mounting plate 3d, 3e A pair of V-shaped side ends of the fixture mounting plate 4 Reflection frame 4a Reflection frame main body 4b Light emitting opening end of reflection frame main body 4c Opening end opposite to reflection frame main body 4d Locking portion of reflector frame body 5 Socket 6 Fluorescent lamp 6a Fluorescent lamp base 6b, 6c A pair of glass bulbs of fluorescent lamp 7 Lighting device 7a Metal partition of lighting device 8 Dowel 9 Rectangular opening 9a Locking claw of rectangular opening DESCRIPTION OF SYMBOLS 10 Small locking hole 11 Small locking claw 12 Mounting opening 13a, 13b A pair of slits 14a, 14b A pair of insertion holes 15 A tool mounting hole 16 Power cord insertion hole 17 Notch recess 18a, 8b pair of mounting ears 20 arc-like reflection surface 21 V cover 23a, 23b lamp holders 24 louvers

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // F21Y 103: 025 F21Y 103: 025 (72) Inventor Naoki Sugishita 4-chome, Higashishinagawa, Shinagawa-ku, Tokyo No. 1 Toshiba Lighting & Technology Corporation F term (reference) 3K011 GA02 JA04 KA00 KA07 3K013 AA03 CA01 CA02 DA01 3K014 LA06 LB03

Claims (9)

[Claims] 1. A synthetic resin reflecting frame provided with a light projecting opening end surrounded by a frame-shaped reflecting frame main body, another opening opposite to the light projecting opening end, and a reflecting surface;
A metal appliance body having a mounting opening formed therein while the inner surface of a portion for closing the other end of the opening is formed at least as a reflection surface; A metal fixture mounting plate fixed to the fixture main body in the fitted state and having a fixture mounting hole for mounting a mounting bracket mounted on the fixture mounting wall; . 2. An appliance mounting plate is recessed in the width direction at both end portions between both fastening portions fastened and fixed to a reflection frame via an appliance body at both longitudinal ends thereof and an appliance mounting hole. 2. The method according to claim 1, wherein each of the concave portions is formed.
The lighting fixture as described. 3. The lighting fixture according to claim 1, wherein the fixture body is sandwiched between the fixture mounting plate and the reflection frame. 4. An apparatus body, comprising: a socket in which a base of a fluorescent lamp is detachably mounted, and a socket having a power supply unit electrically connected to a power receiving unit of the base;
A plurality of projections protruding from an outer surface of the socket portion facing the appliance mounting wall and facing the appliance mounting wall when the appliance main body is mounted on the appliance mounting wall. The lighting fixture according to any one of claims 1 to 3, wherein: 5. The illumination according to claim 1, wherein the socket portion of the reflection frame has a socket fitting hole for fitting and fixing a plurality of sockets by a single hole. Appliances. 6. The appliance body has slits extending along the longitudinal direction of the appliance mounting plate on both sides in the width direction of the appliance mounting plate fitted and fixed to the mounting opening. The lighting fixture according to any one of claims 1 to 5, characterized in that: 7. The apparatus main body includes a plurality of lamp holders for detachably holding a plurality of fluorescent lamps, respectively. The mounting positions of the two lamp holders for holding adjacent fluorescent lamps are mutually set in the axial direction of the fluorescent lamps. The lighting fixture according to claim 1, wherein the lighting fixture is shifted. 8. The reflection frame according to claim 1, wherein a heat radiating hole is formed in the reflection frame so that the base penetrates the inside and outside of the reflection frame near the fluorescent lamp mounted on the socket. The lighting fixture as described. 9. The luminaire according to claim 1, wherein the reflection frame has a reflection surface that expands by an outwardly convex arc surface.