JPH1153916A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To emit light toward a sidewall, a ceiling surface, and a floor so as to be extended to the entire room by arranging an upward lamp and a reflector having a convex reflecting surface which protrudes on the lamp side opposite to each other on the same axis. SOLUTION: This luminaire 10 is formed of a body case 11, a reflector 30 mounted attachably on the body case 11, a lamp part 40, and a pair of hollow arm parts 55 for connecting the body case 11 to the lamp part 40. The reflector 30 has an inverted conical form, the outer surface of its reflecting surface forms a convex reflecting surface 31, a restriction hole is formed inward on the lower end, and the inside of the restriction hole is threaded and screwed to a reflector mounting shaft 35. The lamp part 40 is formed of an inverted conical lamp case part 41 having a lamp socket 42 mounted thereon, and a lamp case cover 45 and connected to the body case 11 by a pair of hollow arm parts 55. Power supply cords are housed in the hollow arm parts 55, and this luminaire is superior also in design property.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for irradiating reflected light.

[0002]

2. Description of the Related Art A conventional lighting fixture will be described with reference to FIG. In this lighting apparatus, a power cord 3 having a lamp socket 2 to which a lamp 1 is screwed is attached to a tip thereof is suspended from a ceiling (not shown), and is positioned below the lamp and is made of a translucent or opaque material. A concave reflection shade 5 having an open hemisphere and an inner surface having a reflection surface is suspended upward from a ceiling by a plurality of chains 4.

[0003] The above-mentioned lighting fixture reflects the light of the lamp to the inner surface of the concave reflector 5 to brighten the upper part. For this reason, the heat of the lamp 1 easily accumulates in the reflection shade 5, and the reflection shade may become hot.

[0004]

As described above, in the conventional luminaire, the light of the lamp is reflected upward by the inner surface of the concave reflector and only a part of the room, such as the ceiling, is brightened. However, there is a problem that it is not possible to obtain light having a wide area.

[0005] The present invention has been made in view of the above points, and it is an object of the present invention to provide a lighting apparatus that obtains light having a spread over the entire room.

[0006]

According to a first aspect of the present invention, there is provided a lighting apparatus according to the first aspect, wherein a lamp and a reflector having a convex reflecting surface protruding toward the lamp are coaxially arranged. Is characterized in that it is arranged to face.

According to a second aspect of the present invention, there is provided the luminaire, wherein the lamp is arranged on a lower side and the reflector is arranged on an upper side.

According to a third aspect of the present invention, there is provided a lighting apparatus according to the first or second aspect, wherein a plurality of the lighting apparatuses are connected in series at a distance from each other.

According to a fourth aspect of the present invention, there is provided the lighting apparatus according to the first aspect, wherein the reflecting surface of the reflector comprises a plurality of cut surfaces.

In the structure of the first aspect of the present invention, since a reflector having a convex reflecting surface is disposed immediately above the lamp, light is transmitted to the side surface (side wall), the upper surface (ceiling surface) or the lower surface (floor surface). Since the light is emitted in the direction, it is possible to obtain light having a spread over the entire room.

In the structure according to the second aspect of the present invention, the lamp is installed upward, and the reflector having the reflecting surface is disposed immediately above the lamp, so that the light is transmitted to the side surface (side wall) or the upper surface (ceiling surface).
Since the light is emitted in the direction, it is possible to obtain light having a spread over the entire room.

In the above configuration, the lamp and the reflector having a convex reflecting surface protruding toward the lamp are provided coaxially and opposed to each other, and a plurality of these are connected in series. There are multiple bands of light in the direction. For this reason, it is possible to enjoy the atmosphere of different light rays and to obtain light having a spread over the entire room.

[0013] In the above configuration, since a plurality of cut surfaces are provided on the reflecting surface of the reflector, light emitted from the lamp is reflected by the plurality of cut surfaces of the reflector, and the surroundings are fantastic. In addition to emitting natural light, it is possible to obtain light that spreads throughout the room.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a lighting fixture according to a first embodiment of the present invention will be described with reference to FIGS.
The lighting fixture according to the first embodiment is attached to a lower end of a suspended hollow pipe suspended from a mounting surface such as a ceiling.

The lighting fixture 10 includes a main body case 11,
Reflector 30 detachably attached to the main body case
, Lamp part 40, the main body case 11 and the lamp part 4
0 and a pair of hollow arm portions 55 connecting the first and second hollow arms 55 to each other.

The main body case 11 has a cylindrical outer case 12 having a cylindrical shape and a lower opening, and a cylindrical inner case 20 having an upper opening and assembled inside the outer case.
It is composed of

The outer case 12 has a disc-shaped upper surface portion 13 having an engagement hole 15 formed at the center thereof, into which a suspended hollow pipe 80 is engaged, and a number of ventilation holes 16 formed therearound. And a side surface portion 14 provided in a ring shape below the outer edge of the upper surface portion. Further, a plate nut 17 having a hollow pipe fixing screw hole 17a at the center is welded and fixed to the center of the rear surface of the upper surface portion 13 of the outer case by spot welding.

Screw holes 14a, 14a are provided on the side surface portion 14 of the outer case so as to face each other, and a power cord through hole 14b for passing a power cord is provided below the screw hole 14a. ing.

The inner case 20 has a fool hole 23 at its center.
And a disk-shaped lower surface portion 21 having a plurality of ventilation holes 24 therearound, and a side surface portion 22 provided in a ring shape upward from an outer edge of the lower surface portion and fitted into the inner surface of the side surface portion of the outer case. The side surface portion 22 is provided with a screw hole 22a and a power cord through hole 22b at positions opposite to the screw hole 14a and the power cord through hole 14b provided on the side surface of the outer case. Further, a plate nut 25 having a screw hole 25a at the center is welded and fixed to the center of the back surface of the lower surface portion 21 of the inner case by spot welding.

In the main body case 11, the inner case 20 is fitted inside the outer case 12, and the screw holes 14a of the outer case 12 and the screw holes 22a of the inner case are aligned with each other. 2
0 is welded and fixed by spot welding. The screws of the screw holes 14a of the outer case and the screw holes 22a of the inner case are formed continuously.

The reflector 30 has an inverted conical shape, the outer surface of the reflector forms a convex reflecting surface 31, and the lower end of the reflector has a stop hole formed inward. A screw hole 32 in which a screw is formed is formed inside. The screw portion 36 of the reflector mounting shaft 35 is screwed and fixed to the screw hole 32 of the reflector from above, and the upper end of the reflector mounting shaft 35 is screwed to the screw hole 25a of the plate nut. A screw portion 37 is formed and protrudes from the upper portion of the reflector.

The lamp portion 40 has an inverted conical lamp case 41 having an upper opening and a lower lamp socket 42 attached thereto, and an upper opening 4 of the lamp case 41.
3 and a lamp case cover 45 fitted into the lamp case cover 3.

The lamp case cover 45 has a lamp fixing portion 46 at the center for receiving the lamp 73 and a ring-shaped mounting portion 47 having a pair of screw holes 48, 48 provided on the outer periphery thereof. An arm 49 connecting the lamp fixing part 46 and the mounting part 47 is provided in four directions. Further, at the upper end of the lamp case portion 41, a fool hole 44 and a power cord through hole 44a are provided to face each other.

The hollow arm portion 55 has a plate-like arm portion 56 having a fool hole 57 and an upper power cord through hole 58 at an upper end and a fool hole 59 and a lower power cord through hole 60 at a lower end. And a boat-shaped decorative cover body 65 that is attached so as to cover the plate-like arm portion 56.

Next, a method of assembling the lighting fixture will be described.

The power cord 70 is connected to the main body case 11 in advance.
And through the power cord through holes 22b and 14b provided on the side surface of the main body case.

Then, the power cord wire 70 drawn out from the power cord through hole 14b of the main body case is passed through the upper power cord through hole 58 of the plate-shaped arm portion 56 and then through the lower power cord through hole 60. Pull inward.

Next, the fool hole 57 of the plate-shaped arm portion is aligned with the screw holes 14a, 14a provided facing the side surface of the main body case 11, and the screw 71 is inserted through the fool hole 57.
The screw 71 is screwed into the screw hole 14a on the side surface.
Fix it.

Then, the power cord wire 70 drawn inward from the lower power cord through hole 60 of the plate-shaped arm portion is inserted inside from the power cord through hole 44a provided in the lamp case portion 41, and the power cord wire is inserted. Lamp socket 42
Connect to

Further, an upper opening 43 of the lamp case portion is provided.
Then, the lamp case cover 45 is fitted into the lamp case 41, and the plate-shaped arm 56 is screwed and fixed to the screw hole 48 of the lamp case cover 45 with the lamp case 41 interposed between the screws 71.
Then, the decorative cover body 65 is fixed to the plate-like arm portion 56 by a method (not shown) so as to cover the power cord 70.

Next, a fitting hole 76 formed at the center of the cylindrical glass body 75 is fitted into the mounting shaft 35 projecting above the reflector 30, and the reflector 30 is formed between the hollow arms. And the distal end of the mounting shaft 35 of the reflector is inserted into the fool hole 23 formed in the center of the lower surface 21 of the main body case. Then, when the reflector 30 is rotated in the screw tightening direction, the lower surface 2 of the main body case is rotated.
(1) Screwed and fixed to the screw portion 25a of the plate nut 25 fixed to the back side.

Finally, the lamp 73 is screwed into the lamp socket 42 of the lamp section 40 to complete the assembly of the lighting equipment.

A method of suspending the above-mentioned lighting fixture on the ceiling will be described.

A nut 82 is previously screwed into a screw portion 81 provided on the outer periphery of the lower end of the suspended hollow pipe 80. Then, the power cord 70 extending from the top of the lighting fixture
Through the lower opening of the suspended hollow tube 80 and withdrawn from the upper opening.

Next, the threaded portion 81 of the suspended hollow pipe is inserted into the engagement hole 15 formed in the center of the upper surface portion 13 of the lighting fixture, and the hollow nut fixing screw of the plate nut 17 fixed to the back surface side. It is screwed into the hole 17a. Then, the nut 82 is rotated downward, and the suspended hollow pipe 80 is fixed to the lighting fixture 10 by the nut 82 and the plate nut 17.

Finally, the lighting fixture 10 is suspended from the ceiling by the suspended hollow pipe 80 by fixing the upper end of the suspended hollow pipe 80 to the ceiling (not shown).

FIG. 5 shows a state in which the lighting fixture 10 is suspended from the hollow pipe 8.
0 indicates a state in which two lamps are connected in series, and the lighting fixture 10 has a lamp 73 (not shown) disposed on a lower side and a reflector 30 having a convex reflecting surface protruding toward the lamp side disposed on an upper side. And coaxially opposed to each other.

The light of the lamp is reflected on the convex reflecting surface 31 of the reflector that expands upward and irradiates in a substantially horizontal direction, while the convex reflecting surface of the reflector expands upward. Also, brightly illuminate the lower part of the lighting equipment. In addition, when the lighting equipment is arranged in the vertical direction, a plurality of light bands are formed in the vertical direction. For this reason, it is possible to enjoy the atmosphere of different light rays and to obtain light having a spread over the entire room.

FIG. 6 shows various reflectors having a reflection surface having a plurality of cut surfaces. FIG. 6A shows a cut surface 85a.
(B) shows a hemispherical reflector 30b having another cut surface 85b pattern. (C) shows a triangular cut surface 85.
c shows an inverted hexagonal pyramidal reflector 30c having
(D) shows an inverted quadrangular pyramid-shaped reflector 30d having a triangular cut surface 85d.

FIG. 7 shows two luminaires each having an inverted quadrangular pyramid-shaped reflector 30d suspended vertically and connected by a hollow pipe. The light of the lamp is reflected on four triangular cut surfaces and is reflected in all directions. This shows a state in which a band of light is formed.

The operation of the lighting fixture according to the above embodiment will be described.

The lighting device according to claim 1 of the present invention is characterized in that
Lamp 73 and convex reflecting surface 31 protruding toward the lamp
Is arranged coaxially and opposingly, so that light is emitted in the direction of the side surface (side wall), the upper surface (ceiling surface) or the lower surface (floor surface), and the light spread over the entire room. Obtainable.

In the lighting apparatus according to the second aspect, the lamp 73 is arranged on the lower side and the reflector 30 is arranged on the upper side.
You can get light that spreads throughout the room.

Further, in the lighting apparatus according to the third aspect, by arranging the lighting apparatuses 10 and 10 in the vertical direction, a plurality of light bands are formed in the vertical direction. For this reason, it is possible to enjoy the atmosphere of different light rays and to obtain light having a spread over the entire room.

In the lighting apparatus according to the fourth aspect of the present invention, since a plurality of cut surfaces are provided on the reflecting surface of the reflector, light emitted from the lamp is reflected by the plurality of cut surfaces of the reflector and is fantastic around. In addition to emitting natural light, it is possible to obtain light that spreads throughout the room.

Next, since the reflector 30 disposed in the center is attached to and detached from the main body case 11 by a screw, the reflector 30 can be easily replaced without using a special tool. It is. In addition, depending on the situation, by changing the shape of the reflector to an inverted quadrangular pyramid-shaped reflector 30d, a hexagonal pyramid-shaped reflector 30c, or the like, light rays different from the above-mentioned light rays can be exhibited, and various light rays can be enjoyed. .

Further, since all the parts are arranged on the basis of the vertical line at the center, the weight balance is good when the lighting equipment is suspended, and the lighting equipment is hung on the ceiling in a stable state. Further, the reflector is also fixed by screws around the central vertical line.

Since the upper surface of the lamp portion 40 to which the lamp 73 is attached is open on the side surface except for the hollow arm portions 55 and 55 attached opposite to each other,
The heat radiation effect is good, and the lamp 73 and the reflector 30 can be easily replaced.

Further, it can be used for lighting in a large space such as a well space. Moreover, the effect of light can be exerted on the entire room, which is an advantage of hanging.

Also, by adopting the configuration of the two hollow arms 55 and 55, it is possible to provide a reflection light type, while maintaining a substantially 360
It is possible to illuminate the surroundings. Further, since a power cord for transmitting electricity to the lamp portion is housed in the hollow arm portion, it is possible to provide an excellent design.

Further, it has a unique effect of irradiating a light band from the center of the room to the side wall. In addition, since the light is suspended from the vicinity of the center of the room, it is possible to provide light having a stable spread over the entire room, not a spot like a conventional product.

The ventilation holes 1 are provided above and below the main body case 11.
6 and 24, the ventilation holes 16,
The heat of the lamp 73 and the reflector 30 located below can be dissipated to the upper portion via the 24. In addition, the lighting fixture 10
May be suspended by a power cord instead of the suspended hollow pipe 80.

[0053]

As described above in detail, according to the lighting apparatus of the first aspect, the lamp and the reflector having the convex reflecting surface protruding toward the lamp are coaxially opposed to each other. Therefore, light is emitted in the direction of the side surface (side wall), the upper surface (ceiling surface), or the lower surface (floor surface), so that light having a spread over the entire room can be obtained.

According to the illumination device of the second aspect of the present invention, since the lamp is installed upward and the reflector having the reflection surface is disposed immediately above the lamp, the light is emitted in the direction of the side wall or the floor surface. Therefore, it is possible to obtain light having a spread over the entire room.

According to the lighting apparatus of the third aspect of the present invention, a plurality of light bands are formed in the vertical direction by arranging the lighting apparatus in the vertical direction. For this reason, it is possible to enjoy the atmosphere of different light rays and to obtain light having a spread over the entire room. According to the luminaire of the fourth aspect of the present invention, since a plurality of cut surfaces are provided on the reflecting surface of the reflector, light emitted from the lamp is reflected on the plurality of cut surfaces of the reflector and is fantastic around. Emits a light beam,
You can get light that spreads throughout the room.

[Brief description of the drawings]

FIG. 1 is a sectional front view showing a lighting device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the lighting fixture in the first embodiment.

FIG. 3 is an exploded perspective view showing a main body case and a reflector according to the first embodiment.

FIG. 4 is an exploded perspective view showing a ramp section and a hollow arm section in the first embodiment.

FIG. 5 is a front view showing a state in which a plurality of lighting fixtures according to the second embodiment are arranged in series.

FIG. 6 is a perspective view of the lighting apparatus according to the embodiment, in which the reflecting surface of the reflector is a cut surface, and (A) is a hemispherical reflector having a cut surface. (B) is a hemispherical reflector having another cut surface pattern. (C) is an inverted hexagonal pyramid reflector having a cut surface. (D) is an inverted quadrangular pyramid reflector having a cut surface.

FIG. 7 is an exemplary perspective view showing a light irradiation state of the lighting fixture in the embodiment.

FIG. 8 is a front view showing a lighting device according to the related art.

[Explanation of symbols]

 Reference numeral 30: Reflector, 30a: Reflector, 30b: Reflector, 30c: Reflector, 30d: Reflector, 31: Convex reflective surface, 73: Lamp, 85a: Cut surface, 85b: Cut surface, 85c: Cut surface , 85d ... cut surface.

Claims (4)

[Claims] 1. A lighting apparatus comprising: a lamp and a reflector having a convex reflecting surface protruding toward the lamp; 2. The luminaire according to claim 1, wherein said lamp is arranged on a lower side and said reflector is arranged on an upper side. 3. A lighting fixture comprising: a plurality of the lighting fixtures according to claim 1; 4. The lighting apparatus according to claim 1, wherein the reflecting surface of the reflector comprises a plurality of cut surfaces.