JPH0992014A - Lighting equipment for multiple lights - Google Patents

Abstract

(57) [Abstract] [Problem] To prevent a lamp image from appearing on a translucent globe. A large number of fluorescent lamps 5 are held by a lamp supporter 2 on the lower surface side of an instrument body 1, and one light-transmissive member in which the central portion of the lower surface side of the fluorescent lamp 5 projects downward from the outer peripheral portion side. In a multi-lamp lighting fixture covered with a sex globe 4, a lamp support body 2 disposed on the central portion side of the fixture body 1 has a projecting dimension from the fixture body 1 disposed on the outer peripheral side. The fluorescent lamp 5 is formed so as to be longer than the protruding size of the body 2 from the instrument body 1.
Was tilted so that the central portion side of the was positioned below the outer peripheral portion side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture for multiple lights, and more particularly to a lighting fixture for multiple lights in which the front side of a plurality of fluorescent lamps is covered with one translucent globe.

[0002]

2. Description of the Related Art FIGS. 3 and 4 show a conventional lighting fixture for multiple lights. This lighting fixture for multiple lights is a direct lighting fixture for a ceiling, which includes a fixture body 1 and a lamp support. 2, a reflection plate 3, and a translucent globe 4 are included.

The instrument body 1 is formed by forming a flange portion 1b in a substantially vertical direction downward at a peripheral edge of a substantially disk-shaped top plate portion 1a, and a flange portion 1b which is a lower surface side of the top plate portion 1a. Inside the
Four round fluorescent lamps 5a, which are the fluorescent lamps 5, are arranged, and a globe mounting portion 1c for mounting the translucent globe 4 is provided in the vicinity of the collar portion 1b of the top plate portion 1a.
It is provided in three places with a pitch of degrees. Further, a mounting portion 1d that substantially abuts the ceiling 6 is provided on the back side of the instrument body 1 on the center side and in the direction opposite to the projecting direction of the collar portion 1b, and the mounting portion 1d is mounted on the ceiling. At that portion, a hooking ceiling 1e which is an electrical connection portion to a rosette or the like provided on the ceiling is provided.

The lamp support 2 is designed to support an annular lamp at two positions in the diameter direction thereof, and two lamp supports are provided so as to form a pair with respect to one round fluorescent lamp 5a. There is. One of the lamp supports 2 is a socket 2a
The other is a lamp support spring 2b, which are provided on the same side of the top plate portion 1a of the instrument body 1 as the side on which the collar portion 1b is provided. The projecting dimensions of the socket 2a and the portion of the lamp support spring 2b supporting the round fluorescent lamp 5a from the top plate portion 1a are substantially the same, and the round fluorescent lamp 5a is substantially horizontal, that is, Top plate 1
It is configured to be mounted substantially parallel to a. Also,
The reflector 3 is substantially dome-shaped, and is located between the socket 2a and the lamp support spring 2b, which are the pair of lamp supports 2;
The circular fluorescent lamp 5a is arranged so as to be located at a substantially circular center portion.

The light-transmitting globe 4 is made of acrylic resin, has a shape in which the central portion thereof projects gently downward from the outer peripheral side, and a rising portion 4a is formed in the vicinity of the outer peripheral portion.
Is provided and is formed so as to open to the rising portion 4a side. Further, the diameter of the opening formed by the rising portion 4a is made slightly smaller than the diameter of the collar portion 1b, and the inside of the rising portion 4a is engaged with the globe mounting portion 1c of the instrument body 1. The arms 4b are provided at three places at a pitch of about 120 degrees.

Then, the rising portion 4a of the light-transmitting globe 4 is aligned with the inside of the collar portion 1b of the instrument body 1, and the engaging arm 4b of the light-transmitting globe 4 is engaged with the globe mounting portion 1c of the instrument body 1. By doing so, the light-transmissive globe 4 is attached to the instrument main body 1, so that the four round fluorescent lamps 5a, the reflection plate 3, etc. are covered by the single light-transmissive globe 4 on the lower surface side. Is configured.

[0007]

However, in the conventional multi-lamp lighting apparatus constructed as described above, the round fluorescent lamp 5a, which is the fluorescent lamp 5, is substantially horizontal, that is, the top plate portion 1a. Light-transmissive gloves 4 that are installed substantially parallel to each other
However, since the central portion thereof has a shape that projects downward more gently than the outer peripheral portion side, the dimension between the translucent globe 4 and the round fluorescent lamp 5a is the dimension A on the central side of the instrument body 1. Compared with this, the dimension B on the outer peripheral side is remarkably shortened, and the translucent globe 4 of the luminaire when the round fluorescent lamp 5a is lit up.
When viewed from below, there was a problem that the lamp image was strong on the outer peripheral side of the instrument body 1 and the appearance was poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture for multiple lights in which a lamp image is difficult to appear on a translucent globe.

[0009]

In order to solve the above-mentioned problems, the present invention provides a fluorescent lamp 5 having a plurality of fluorescent lamps 5 on the lower surface side of the instrument body 1 by means of the lamp support 2 in the invention. In the multi-lamp lighting fixture, which is held, the lower surface side of the fluorescent lamp 5 is covered with one light-transmitting globe 4 whose central portion projects downward from the outer peripheral portion side. The instrument main body 1 is arranged so as to be inclined so that the central portion side is located lower than the outer peripheral portion side.

According to the second aspect of the present invention, the first aspect is provided.
In the lighting fixture for multiple lamps described above, the projection size of the lamp support body 2 arranged on the central side of the fixture body 1 from the fixture body 1 is the fixture of the lamp support body 2 arranged on the outer peripheral side. It is characterized in that it is formed so as to be longer than the projecting dimension from the main body 1.

According to a third aspect of the invention, in the multi-lamp lighting fixture according to the first or second aspect, the projection size of the lamp support 2 from the fixture body 1 is
It is characterized in that the outer peripheral portion side and the central portion side of the instrument main body 1 are formed substantially equal to each other, and the instrument main body 1 is formed so that the central portion side projects below the outer peripheral portion side. .

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of a lighting fixture for multiple lights according to the present invention. Instrument body 1,
The lamp support body 2, the reflection plate 3, and the translucent globe 4 are provided.

The instrument main body 1 is made of sheet metal and is painted, for example, white so that the lower surface side has a high reflectance, and the peripheral end of a substantially disc-shaped top plate portion 1a stands substantially vertically downward. The collar portion 1b is formed by being lowered. Also, the top plate 1
A round fluorescent lamp 5a, which is four fluorescent lamps 5, is arranged inside the collar portion 1b, which is the lower surface side of a.
In the vicinity of the collar portion 1b of, like the conventional lighting fixture for multiple lights,
The glove mounting part for mounting the translucent glove 4,
It is provided at three places with a pitch of about 120 degrees. Also,
A mounting portion 1d that substantially abuts the ceiling 6 is provided on the rear surface side of the center of the instrument body 1 in the direction opposite to the protruding direction of the collar portion 1b, and the mounting portion 1d is mounted on the ceiling and at the same time. A hook ceiling, which is an electrical connection portion to a rosette or the like provided on the ceiling, is provided in the portion, and further, a sponge packing 7 is attached to the peripheral edge of the top plate portion 1a along the flange portion 1b. There is.

The lamp support 2 is configured to support an annular lamp at two locations in the diametrical direction, and the tip-side portion for supporting the lamp has a substantially C-shape, and one lamp support is provided. Two lamp supports 2 are provided so as to form a pair with the round fluorescent lamp 5a. One of the lamp supports 2 is a socket 2a for gripping the base portion of the round fluorescent lamp 5a and supplying electric power by abutting the lamp pin, and the other is the base portion of the round fluorescent lamp 5a. There is a lamp support spring 2b for gripping the opposite side, and the lamp support body 2 forming a pair is on the same side as the side where the flange portion 1b of the top plate portion 1a of the instrument body 1 is provided, and is substantially the instrument body 1 It is attached so as to line up on one line passing through the center of. Further, the socket 2a arranged on the central portion side of the instrument body 1 has a top plate portion 1 of the instrument body 1 up to the center of the round fluorescent lamp 5a to be mounted.
The protrusion dimension C from a is the protrusion dimension D from the top plate portion 1a of the lamp support spring 2b arranged on the outer peripheral side of the fixture body 1.
Longer, that is, the height of the lamp support spring 2b is lower than the height of the socket 2a, and the round fluorescent lamp 5a is mounted so as to be tilted so that the center side is located lower than the instrument body 1. To be done.

The reflecting plate 3 is formed of a white resin having a high reflectance on its surface, or a sheet metal. The reflecting plate 3 has a substantially inverted dome shape, and the socket 2a, which is a pair of lamp supporting bodies 2, and a lamp supporting member. It is arranged so as to protrude downward between the springs 2b, and a lighting device (not shown) and the like are housed inside thereof. In addition, a notch (not shown) through which the socket 2a projects is provided on the central portion side of the instrument body 1, which is one side thereof. By mounting the round fluorescent lamp 5a on the lamp support 2, the reflecting plate 3 is arranged so as to be positioned at a substantially central portion which is a hollow portion of the annular round fluorescent lamp 5a.

The translucent globe 4 is made of a translucent resin, for example, a milky white acrylic resin, and has a shape such that its central portion gently protrudes downward from the outer peripheral side. The rising portion 4a is provided in the vicinity of the outer peripheral portion, and is formed so as to open to the rising portion 4a side. In other words, the translucent globe 4 is formed so that the central portion side in the cross section thereof protrudes downward in a gentle curved line or in a straight line. Further, the diameter of the opening formed by the rising portion 4a is made slightly smaller than the diameter of the collar portion 1b, and the inside of the rising portion 4a has the same rising portion as that of a conventional multi-lamp lighting fixture. The engaging arm that protrudes substantially perpendicularly to 4a and that engages with the glove mounting portion of the device body 1 is approximately 120
It is provided in three places with a pitch of degrees. The tip of the rising portion 4a is configured to substantially contact the sponge packing 7 by being attached to the instrument body 1.

In the multi-lamp lighting apparatus having such a structure, when the round fluorescent lamp 5 is held by the socket 2a which is the lamp support 2 and the lamp supporting spring 2b, the round fluorescent lamp 5a becomes the socket 2a. Due to the difference in the protrusion size of the lamp support spring 2b from the top plate portion 1a, the instrument body 1 is mounted so as to be inclined so that the central portion side is located lower than the outer peripheral portion side. The translucent globe 4 is attached to the instrument body 1 by engaging the engagement arm of the translucent globe 4 with the globe attachment portion of the instrument body 1 from the lower surface side thereof, whereby four circles are attached. The bottom surface side of the shaped fluorescent lamp 5a and the reflection plate 3 is covered with one translucent globe 4.

With such a configuration, in the multi-lamp lighting fixture according to the present embodiment, the round fluorescent lamp 5a is tilted so that the outer peripheral side of the translucent globe 4 approaches the fixture body side. Therefore, the distance A between the light-transmitting globe 4 and the round fluorescent lamp 5a on the central side of the fixture body 1 is the same as that of the conventional multi-lamp lighting fixture, but the distance B on the outer peripheral side is round. Since the fluorescent lamp 5a is inclined toward the side closer to the fixture body 1 side, it is longer than the conventional multiple-lamp lighting fixture. Therefore, the distance between the round fluorescent lamp 5a and the translucent globe 4 is easily secured even on the outer peripheral side of the instrument body 1,
The lamp image is less likely to appear on the translucent globe 4, and the appearance is improved. Moreover, since the distance between the round fluorescent lamp 5a and the translucent globe 4 is the closest to the outer peripheral side of the instrument body 1, the height of the translucent globe 4 in the direction substantially perpendicular to the opening can be secured. The size can be reduced and the design is improved.

FIG. 2 shows a second embodiment of the lighting fixture for multiple lights of the present invention. The difference from the first embodiment is that the top plate portion 1a of the main body 1 of the fixture is The lamp support spring 2b is one of the lamp supports 2, and the other parts are configured in substantially the same manner as in the first embodiment.

The top plate portion 1a of the instrument main body 1 is so arranged that the central portion of the instrument main body 1 projects below the outer peripheral side where the collar portion 1b is provided, that is, the top plate portion 1a of the instrument main body 1. But,
It is formed such that the central portion side is gently depressed in the cross section of the outer peripheral portion side of the position where the lamp support spring 2b is attached.

Further, the lamp support spring 2b has the same shape as that of the first embodiment in a portion for gripping the round fluorescent lamp 5a, which is the fluorescent lamp 5, and the lamp supporting spring 2b extends from the top plate portion 1a of the instrument body 1. The projecting dimension is substantially the same as the projecting dimension from the top plate portion 1a of the socket 2a which is the other lamp support 2.

With this structure, in the lighting fixture for multiple lights in the present embodiment, the distance between the light-transmitting globe 4 and the round fluorescent lamp 5a on the center side of the main body 1 of the fixture. A and the distance B on the outer peripheral side can be made substantially equal to each other, and the translucent glove 4 can be used on the outer peripheral side of the instrument body 1.
The lamp image is less likely to appear and the appearance can be improved. Moreover, since the distance between the round fluorescent lamp 5a and the translucent globe 4 is the closest to the outer peripheral side of the instrument body 1, the height of the translucent globe 4 in the direction substantially perpendicular to the opening can be secured. The size can be reduced and the design is improved.

Although the fluorescent lamp 5 has been described as the round fluorescent lamp 5a in the above-mentioned respective embodiments,
The present invention is not limited to this, and a U-shaped lamp, a compact lamp, or the like may be radially held by the instrument body. Further, in each of the above embodiments,
Although the shape of the instrument body 1 is a substantially disc shape, the present invention is not limited to this, and may be another shape such as a quadrangle. Furthermore, in each of the above-described embodiments, description has been given by exemplifying the ceiling-mounted lighting fixture, but the present invention is not limited to this, and is a ceiling-mounted lighting fixture that is suspended and attached to the ceiling. Also, the lamp support 2 also has one socket and two
The one lamp support spring may be configured to hold the lamp at three points.

[0024]

As described above, according to the present invention, since the round fluorescent lamp is inclined so that the outer peripheral side of the light-transmitting globe is close to the main body of the apparatus, the light transmitting on the outer peripheral side is performed. It becomes easy to secure the distance between the protective globe and the round fluorescent lamp. Therefore, the lamp image is less likely to appear on the translucent globe even on the outer peripheral side of the instrument body, and the appearance can be improved. In addition, since the distance between the round fluorescent lamp and the translucent globe can be ensured on the outer peripheral side of the instrument main body, which is closest to each other, the height dimension of the translucent globe can be reduced and the design is improved.

[Brief description of drawings]

FIG. 1 is a front view of a partial cross section of a main part showing a lighting fixture for multiple lights according to a first embodiment of the present invention.

FIG. 2 is a front view of a partial cross section of a main part of a lighting fixture for multiple lights according to a second embodiment of the present invention.

FIG. 3 is a partially exploded perspective view showing a conventional lighting fixture for multiple lights.

FIG. 4 is a front view of a partial cross section of the main part of the above.

[Explanation of symbols]

 1 Instrument main body 2 Lamp support 4 Translucent globe 5 Round fluorescent lamp 6 Ceiling

Claims (3)

[Claims] 1. A single light-transmitting globe in which a large number of fluorescent lamps are held by a lamp supporter on the lower surface side of an instrument body, and the central portion of the lower surface side of the fluorescent lamp projects below the outer peripheral side. In a lighting fixture for multiple lights covered with
A multi-lamp lighting fixture, wherein the fluorescent lamp is arranged so as to be inclined so that a central portion side of the fixture main body is located lower than an outer peripheral portion side. 2. The projection size of the lamp support disposed on the central side of the fixture body from the fixture body 1 is larger than the projection size of the lamp support disposed on the outer peripheral side from the fixture body. The lighting fixture for multiple lights according to claim 1, wherein the lighting fixture is formed so as to be long. 3. The protrusion size of the lamp support from the fixture body is formed to be substantially equal on the outer peripheral side and the central side of the fixture main body, and the central part of the fixture main body is closer to the outer peripheral side. The lighting fixture for multiple lights according to claim 1 or 2, characterized in that it is also formed so as to project downward.