JPH06251613A - Luminaire - Google Patents

Abstract

PURPOSE:To improve workability of mounting a luminaire main unit by providing only a lamp tube part of a single base lamp to appear in a lower surface irradiation opening of the luminaire main unit. CONSTITUTION:In a luminaire main unit 11, a roof part 12 is provided, and side plate parts 13a to 13d are provided corresponding to each peripheral edge side of the roof part 12, to open an irradiation opening 14 to a lower surface. In the inside of the luminaire main unit 11, a reflecting plate 41 and a lamp socket 31 for connecting a single base lamp 32 are arranged. In the luminaire main unit 11, an opening part 22 opened in a sloped shape over the side plate part 13a from the roof part 12 is provided corresponding to a one side angle part of the roof part 12. Accordingly, when mounted on a mounted part of the luminaire main unit 11, the center of the roof part 12 with good weight balance of the luminaire main unit 11 can be supported by one hand of a worker. Consequently, the luminaire main unit 11 is easily supported even by one hand, and also mounting work to the mounted part can be easily performed through an opening part 22 by the other hand. Accordingly, workability of mounting the luminaire main unit 11 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 such as an embedded lighting fixture which is mounted via a top plate.

[0002]

2. Description of the Related Art Conventionally, in an embedded lighting fixture, as shown in FIG. 7, for example, a fixture main body 1 is formed by bending a side plate portion 3 downward from a peripheral edge of a square-shaped top plate portion 2. The irradiation opening 4 is formed on the lower surface in the shape of a rectangular box.
A large opening 5 is formed in the center of the top plate 2 for facilitating the installation work of the instrument body 1, and a plurality of mounting holes 6 for hanging support are formed outside the opening 5. Lighting circuit components and the like are attached to the lower surface around the opening 5.

Further, inside the instrument body 1, a reflector plate 7,
A lamp socket (not shown), a lamp (not shown) which is connected to the lamp socket and is arranged substantially horizontally below the reflection plate 7,
The louver 8 and the like are arranged.

When mounting the instrument main body 1 on the ceiling surface or the like, the upper portion of the instrument main body 1 is inserted into the embedding opening formed in the ceiling plate to remove the ceiling structure above the ceiling plate. A plurality of hanging bolts protruding from each are inserted into the respective mounting holes 6 of the top plate portion 2, and nuts are screwed and tightened at the tips of the hanging bolts protruding below the top plate portion 2 to fix the device main body 1 Is hung and supported.

At this time, since the opening 5 is formed in the center of the top plate portion 2, for example, an operator supports the instrument main body 1 with one hand, and through the opening 5, the hanging bolt and the other hand are held. The suspension bolt can be easily guided through the mounting hole 6 of the top plate portion 2 while checking the position, and the mounting work can be performed easily.

[0006]

As described above, in the conventional lighting fixture, the opening 5 is formed at the center of the top plate 2 of the fixture main body 1.
Is formed to facilitate the installation work of the instrument body 1, but when a worker supports the instrument body 1 with one hand, the central portion of the instrument body 1 having a good weight balance has an opening 5 However, since it cannot support it, it has no choice but to support the periphery of the opening 5 having a poor weight balance, which makes it difficult to support the instrument body 1 and still has a problem in workability of attaching the instrument body 1.

When a U-shaped single-ended lamp is used as the lamp, the single-ended lamp can suppress an increase in the temperature of the wall of the coldest part of the tip of the lamp tube.
The lamp can be lit while maintaining a good lamp efficiency.

However, in the conventional lighting fixture, the fixture main body 1
Although the heat in the device is radiated to the outside from the opening 5, the heat dissipation is good in the central part, and the heat dissipation in the peripheral part with the top plate part 2 is worse than in the central part. Since the coldest part of the single-base lamp is located at the peripheral part of the main body of the fixture, the effect of suppressing the rise of the tube wall temperature of the coldest part is small, and it is difficult to maintain the lamp efficiency.

Further, since the single-ended lamp is arranged between the side plate portions 3 of the instrument body 1 and the lamp tube of the single-ended lamp faces the irradiation opening, the light irradiation efficiency with respect to the area of the irradiation opening becomes low. There is.

The present invention has been made in view of the above points, and improves the workability of mounting the main body of the fixture, and suppresses the rise of the tube wall temperature of the coldest portion of the single-ended base lamp to improve the lamp efficiency. It is an object of the present invention to provide a luminaire that can maintain the above-mentioned value and can further improve the light irradiation efficiency with respect to the area of the irradiation opening.

[0011]

The invention according to claim 1 is
A polygonal top plate and a fixture main body having a side plate corresponding to each peripheral edge of the top plate and having an open lower surface are provided, and a lamp socket for connecting a reflector and a lamp is provided inside the fixture main body. In the lighting fixture, the fixture main body is provided with an opening that opens in a slope shape from the top plate portion to the side plate portion, corresponding to one side corner portion of the top plate portion.

According to a second aspect of the present invention, in the configuration of the first aspect of the invention, the lamp socket is for a single-base lamp and is located on the opposite side of the side plate portion where the opening of the fixture body opens. That is, the coldest portion at the tip of the single-ended lamp is located on the opening side of the instrument body.

According to a third aspect of the invention, in the configuration of the first or second aspect of the invention, the reflector is provided with a ventilation portion on the side facing the opening of the instrument body.

According to a fourth aspect of the present invention, in the structure of the first aspect of the invention, the lamp socket is for a single base lamp, and the fixture body is provided on one side plate portion at a lower end opening position of the side plate portion. The lamp socket is provided with a projecting portion projecting further outward and provided with the lamp socket.

[0015]

According to the invention as set forth in claim 1, since the operator can support the center of the well-balanced top plate portion of the instrument body with one hand when the instrument body is attached to the attachment portion, the instrument body can be supported with one hand. It is easy to support, and the other hand can be easily attached to the attached portion through the opening.

According to the second aspect of the invention, in addition to the operation of the first aspect of the invention, by positioning the coldest portion of the tip of the single-ended lamp to the opening side of the appliance body having good heat dissipation, the single-ended lamp Suppresses the rise of the tube wall temperature in the coldest part of the gold lamp,
Maintain a good lamp efficiency.

According to the third aspect of the invention, in addition to the action of the first or second aspect of the invention, the air below the reflector heated by the heat of the lamp is opened from the ventilation part of the reflector. The temperature of the lamp is controlled to increase and the lamp wall temperature of the lamp below the reflector is prevented from rising, and the lamp efficiency is maintained.

According to the invention described in claim 4, in addition to the operation of the invention described in claim 1, since the base of the single-ended lamp is connected to the lamp socket provided in the protruding portion projecting to the outside of the instrument body, the single-ended base is connected. Only the lamp tube portion of the lamp faces the irradiation opening on the lower surface of the fixture body, and the light irradiation efficiency with respect to the area of the irradiation opening is improved.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the lighting equipment of the present invention will be described below with reference to FIGS.

In the figure, 11 is a main body of the instrument, and a top plate portion 12
And the side plate portions 13a, 13b, 13c, 13d on all four sides are formed in a rectangular box shape having an irradiation opening 14 below. The top plate portion 12 and the side plate portions 13b and 13c are made of one plate material 15, and the side plate portions 13a and 13d are made of one plate material 16 and 17, respectively.
On both side edge portions of the side plate portion 13a, connecting piece portions 18 that are joined to the outer surfaces of the side plate portions 13b and 13c and fixed by welding or the like are formed by bending. On the upper side and both side edges of the side plate portion 13d,
Joining piece portions 19 and 20 joined to the outer surfaces of the top plate portion 12 and the side plate portions 13b and 13c and fixed by welding or the like are formed by bending. From the lower edge of each of the side plate portions 13a to 13d, a mounting edge portion 21 protruding outward in a substantially L shape is formed.

Further, an opening portion corresponding to one side corner of the top plate portion 12 and opening in a slope shape from the top plate portion 12 to the side plate portion 13a.
22 are formed. The opening 22 in the top plate 12
The edge position of is closer to the side plate portion 13a than the center of the instrument body 11, and the edge position of the opening 22 in the side plate portion 13a is higher than the ceiling plate 61, which will be described later, and part of the reflection plate 41. The height is projected.

A mounting hole 23 for suspending and supporting is formed at the center of the top plate portion 12, and a pair of substantially L-shaped support piece portions 24 face inwardly on both side plate portions 13b and 13c. It is cut and raised.

A lighting device 25 is provided on the lower surface of the top plate 12.
A terminal block (not shown) is attached, and a plurality of attachment fittings 26 for attaching the reflection plate 41 are attached to the center of the top plate portion 12 near the opening 22 and the center of the side plate portion 13d. In the mounting bracket 26, a mounting plate portion 28 is formed between the lower portions of a pair of leg plate portions 27 mounted on the top plate portion 12, and a screw hole 30 into which a mounting screw 29 is screwed is formed in the mounting plate portion 28. ing.

Reference numeral 31 is a lamp socket, and two lamp sockets 31 for a single-base lamp are provided, and they are attached to the inner surface of the side plate portion 13d by mounting members not shown. The single-base lamp 32 includes a base 33 and a substantially U-shaped lamp tube 34, and the tip of the lamp tube 34 is configured as a coldest section 35 that easily affects the lamp efficiency.

The reflection plate 41 is formed with a rectangular upper surface plate portion 42, and end face plate portions 43 are bent downward at substantially right angles from both opposite edges of the upper surface plate portion 42, and both ends thereof are formed. Fitting between the face plate portions 43, the side face plate portion 44 is formed by obliquely outwardly bending from the other opposite edges of the upper face plate portion 42, and is formed in a rectangular box shape that opens downward as a whole. Has been done.

The outer surface spacing of both end surface plate portions 43 is formed to be close to the inner surface spacing of the side plate portions 13a and 13d of the instrument body 11, and the both side edge intervals of both end surface plate portions 43 are the side plate of the instrument body 11. The reflector plate 41 is formed to have a size close to the space between the inner surfaces of the parts 13b and 13c.
It can be inserted and placed in 11. Further, the protruding length of the reflection plate 41 in the downward direction of the end face plate portion 43 is longer than that of the side face plate portion 44, and the side plate portion 13 in the state where the reflection plate 41 is attached to the instrument body 11
The inner surface of a is formed to have a length that allows polymerization.

Further, on the center line of the upper surface plate portion 42, each mounting screw 29 is inserted to be mounted on each mounting bracket 26.
45 are formed. Each lamp socket 31 extends from the upper surface plate portion 42 to the one end surface plate portion 43 at both sides of the mounting hole 45.
A pair of notches 46 are formed through which the notches 46 are inserted.

Further, a ventilation part 47 formed by a gap is formed between the end face plate portion 43 having no notch portion 46 and the edge portions of both side face plate portions 44 facing the end face plate portion 43. .

Further, on the lower surface of the upper plate portion 42, a pair of lamp holders 48 for detachably fitting and holding substantially the center of the lamp tube 34 of each single-ended lamp 32 are attached.

Reference numeral 51 is a light control body. In the light control body 51, a louver 53 arranged inside the irradiation opening 14 of the instrument body 11 is attached inside a rectangular frame body 52. V springs 54 are attached to both sides of the frame body 52, and each V spring 54 is attached to the instrument main body 11
The side plate portions 13b and 13c are hooked between the pair of supporting piece portions 24, and the frame body 52 is pulled up by the spring force of the V spring 54.

The ceiling plate 61 is supported below the ceiling structure with a space therebetween, and has an embedding opening 62 for embedding and installing the instrument body 11. The suspension bolt 63 protruding from the ceiling structure faces the top of the center of the embedding opening 62.

Next, the operation of this embodiment will be described.

First, the attachment of the instrument to the top surface is performed by the instrument body 11
The upper part of the above is inserted into the embedding opening 62 of the ceiling plate 61 from below, the hanging bolt 63 is inserted into the mounting hole 23 of the top plate portion 12, and the tip of the hanging bolt 63 protruding below the top plate portion 12 is inserted. Tighten the nut 64 by screwing it in.

At this time, the operator supports the vicinity of the center of the top plate 12 with one hand, inserts the other hand above the top plate 12 through the opening 22 and attaches the hand to the hanging bolt 63. While checking the position, the hanging bolt 63 can be easily guided through the mounting hole 23 of the top plate portion 12. Therefore, since the center of the top plate portion 12 with good weight balance of the device body 11 can be supported by one hand, the device body 11 can be easily supported by one hand, and the hanging bolt 63 with the other hand can be guided through the mounting hole 23. The work is also easy, and the workability of attaching the instrument body 11 is good.

By tightening the nut 64,
The attachment edge portion 21 at the lower edge of the instrument body 11 abuts the lower surface of the ceiling plate 61, and the instrument body 11 is fixed.

In addition, a power supply line that is routed between the ceiling plate 61 and the ceiling structure is guided through the opening 22 to the instrument main body 11.
Pull it inside and connect it to the terminal block.

Then, the reflection plate 41 is inserted from the irradiation opening 14 into the inside of the instrument main body 11, and the attachment screw 29 is attached to the attachment hole 45 of the reflection plate 41.
Through the mounting bracket 26 by screwing and fixing. In the attached state of the reflection plate 41, the lamp socket 31 is projectingly arranged below the reflection plate 41 through the cutout portion 46, and the one end side upper portion of the reflection plate 41 projects from the opening 22 of the instrument body 11.

Further, the base 33 of the single-base lamp 32 is inserted into the irradiation opening 14 of the apparatus main body 11 in an oblique state with the base 33 facing upward, and the base 33 is rotated upward while inserting the base 33 into the lamp socket 31 for connection. It is moved and fitted into the lamp holder 48, and is supported below the reflection plate 41 in a substantially horizontal state.

Further, each V spring 54 of the light control body 51 is connected to the main body of the device.
The light control body 51 is pulled up by the spring force of the V spring 54 by hooking it on the support piece portions 24 of both side plate portions 13b and 13c of 11 and pushing up the frame body 52. Therefore, the frame body 52 is supported so as to cover the mounting edge portion 21 of the instrument body 11 and be joined to the lower surface of the ceiling plate 61, and the louver 53 is fitted into the irradiation opening 14 below the reflection plate 41 and the single-ended lamp 32. Are combined.

Next, at the time of lighting the lamp, heat is generated from the lighting device 25 and the single-ended lamp 32, and the heat of the heat heats the surrounding air, and the heat is transmitted to the fixture body 11 and the reflection plate 41. The ambient air is also warmed from the instrument body 11 and the reflection plate 41. The warmed air inside the device body 11 is satisfactorily discharged to the outside from the opening 22 of the device body 11. Therefore, on the opening 22 side, both the device main body 11 and the reflection plate 41 have good heat dissipation, and an increase in temperature is suppressed.

Therefore, since the coldest part 35 of the single-base lamp 32 is located on the side of the opening 22 having good heat dissipation, it is possible to suppress the rise of the tube wall temperature of the coldest part 35 at the tip of the lamp tube 34, It is possible to maintain a good lamp efficiency. In particular,
Since the ventilation plate 47 communicating with the opening 22 is formed in the reflection plate 41, the warmed air inside the reflection plate 41 is ventilated.
Good discharge through the opening 22 through the lamp tube
It is possible to reliably suppress an increase in the tube wall temperature of the coldest portion 35 at the tip of 34, and maintain a good lamp efficiency.

Since the reflection plate 41 is formed in a rectangular box shape having a pair of end face plate portions 43 and a pair of side face plate portions 44 so as to surround the one-sided lamp 32 on all sides, it is a light control body.
When the inside of the instrument body 11 is looked up through the 51, the end face plate portion 43
There is no difference between the reflector and the main body of the fixture, as in the case of a general reflector without a gap, and the appearance is good.

Next, another embodiment of the luminaire of the present invention will be described with reference to FIGS.

The side plate portion 13 opposite to the opening portion 22 of the instrument body 11
An irradiation opening 14 is formed on the d side, and a protruding portion 71 is formed so as to protrude outward on the upper side rather than the lower side fitted inside the ceiling plate 61. The lamp socket 31 is attached to the protrusion 71 by a substantially L-shaped mounting bracket 72 attached to the inner wall of the side plate 13d.
Are arranged.

In the light control body 51, a milky white shade 55 is fitted inside the frame body 52.

When the instrument main body 11 is inserted into the embedding opening 62 of the ceiling plate 61, first, the projecting portion 71 of the instrument main body 11 is in an oblique state with the projecting portion 71 facing upward. From ceiling plate
After being inserted above 61, the opening 22 side of the instrument main body 11 is pushed upward and the opening 22 side is inserted into the embedding opening 62. At this time, when pushing up the opening 22 side of the instrument body 11,
Since the opening 22 is formed in an inclined surface shape, the device body 11
Can be inserted into the embedding opening 62 without interfering with the ceiling plate 61.

As the single-ended lamp 32, a lamp whose total length including the cap 33 and the lamp tube 34 is longer than the width of the irradiation opening 14 of the instrument body 11 can be used. That is, when connecting the single-base lamp 32, first, the base 33 is inserted into the irradiation opening 14 in an oblique state with the base 33 facing upward, and while the base 33 is inserted and connected to the lamp socket 31, the tip side of the lamp tube 34 is connected. Is rotated upward to fit and be attached to the lamp holder 48.

In the state where the single-base lamp 32 is connected, the base 33 connected to the lamp socket 31 is connected to the main body of the fixture.
Since the lamp tubes 34 are arranged on the protrusions 71 and only the lamp tube 34 faces the irradiation opening 14, the light irradiation efficiency with respect to the area of the irradiation opening 14 can be improved.

In this embodiment also, the instrument body 11
By forming the opening portion 22 in the or the ventilation portion 47 in the reflection plate 41, the same operational effect as that of the above-described embodiment can be obtained.

[0050]

According to the invention described in claim 1, since the opening portion which is opened in a slope shape is provided from the top plate portion to the side plate portion in correspondence with one side corner portion of the top plate portion, When attaching to the attachment part, the worker can support the center of the top plate part with good weight balance of the instrument body with one hand, it is easy to support the instrument body with one hand, and the other hand through the opening. The work of attaching to the attachment portion can be easily performed, and the workability of attaching the instrument body can be improved.

According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, since the coldest portion of the tip of the single-ended lamp is located on the opening side of the appliance body with good heat dissipation,
It is possible to suppress an increase in the temperature of the tube wall at the coldest part of the single-base lamp, and to maintain a good lamp efficiency.

According to the third aspect of the invention, in addition to the effect of the first or second aspect of the invention, the reflector which is heated by the heat of the single-ended lamp by the ventilation part provided in the reflector. Since the air on the lower side can be discharged to the opening, the rise in the tube wall temperature of the single-ended lamp on the lower side of the reflector can be suppressed, and the state of good lamp efficiency can be maintained.

According to the invention described in claim 4, in addition to the effect of the invention described in claim 1, in order to connect the base of the single base lamp to the lamp socket provided in the projecting portion projecting to the outside of the instrument body, Only the lamp tube portion of the single-base lamp faces the irradiation opening on the lower surface of the instrument body, and the light irradiation efficiency for the area of the irradiation opening can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a lighting fixture of the present invention.

FIG. 2 is a perspective view of a part of the above embodiment in a disassembled state.

FIG. 3 is a perspective view showing an assembled state of the above embodiment.

FIG. 4 is a cross-sectional view showing another embodiment of the lighting fixture of the present invention.

FIG. 5 is a perspective view of a part of the above embodiment in an exploded state.

FIG. 6 is a perspective view showing an assembled state of the embodiment.

FIG. 7 is a perspective view of a conventional lighting device in an exploded state.

[Explanation of symbols]

 11 Fixture body 12 Top plate 13a, 13b, 13c, 13d Side plate 22 Opening 31 Lamp socket 32 One-sided lamp 35 Coldest part 47 Ventilation part 71 Projection

Claims (4)

[Claims] 1. A polygonal top plate and a fixture main body having a side plate corresponding to each peripheral edge of the top plate and having a bottom surface opened, and a reflector and a lamp connected to the inside of the fixture main body. In the luminaire including the lamp socket, the lighting device main body is provided with an opening that opens in a slope shape from the top plate portion to the side plate portion, corresponding to one side corner portion of the top plate portion. Lighting equipment. 2. The lamp socket is for a single-ended lamp and is located on the opposite side to the side plate portion where the opening of the instrument body opens, and the coldest portion at the tip of the single-ended lamp is opened in the instrument body. The luminaire according to claim 1, wherein the luminaire is located on the side of the unit. 3. The lighting device according to claim 1, wherein the reflector has a ventilation part on a side facing the opening of the device body. 4. The lamp socket is for a single base lamp, and the fixture body is provided on one side plate portion with a projecting portion projecting outward from a lower end opening position of the side plate portion to mount the lamp socket. The luminaire according to claim 1, wherein: