JPH087631A - Hanging light fixture - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the inclination of the device without increasing the height of the device body 8 or using an expensive resin insulating plate. [Arrangement] An inverted dish-shaped instrument body 8 having a built-in inverter lighting circuit 9 and a dish-shaped reflector 10 closing an opening of the instrument body 8 are provided, and a lamp support spring is provided on one side of the instrument body 8. 19 and a lamp holder 12 of a socket integral type, which is heavier than the lamp support spring 19, is disposed on the other side of the lamp support spring 19 to support the annular fluorescent lamps 2a and 2b. A balancer for compensating for the weight difference from the socket-integrated lamp holder 12 is attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging type lighting apparatus, and more particularly to an inverter lighting type hanging lighting apparatus equipped with a lamp holder integrated with a socket for supplying power to a ring-shaped fluorescent lamp and supporting the lamp. Regarding

[0002]

2. Description of the Related Art This type of socket-integrated lamp holder, for example, as shown in FIG. 3, has a socket portion 4 for connecting an electrode terminal 3 of a ring-shaped fluorescent lamp 2 (2a, 2b) to a resin casing 1. A holder portion 5 for supporting the mounted fluorescent lamps 2 (2a, 2b), a wiring portion 6 for connecting a power source to the socket portion 4, a power source connecting terminal portion 7 and the like are arranged. While supplying power to the lamps 2 (2a, 2b), the holder portion 5 is used for the ring fluorescent lamps 2 (2a, 2b).
It is configured to support the valve wall surface of the electrode terminal portion of b).

The socket-integrated lamp holder having such a power supply function has the wiring portion 6 embedded in the housing 1, and when assembled in a lighting fixture, the wiring of the socket is exposed on the lower surface side of the lighting fixture. In addition, since the appearance is excellent and the socket is fixed to the housing 1, the mountability of the lamp is improved.

Also, the ring-shaped fluorescent lamp 2 (2a, 2b) can be supported at two points between the bulb wall surfaces in the diametrical direction by means of an integral lamp holder and a normal lamp support spring.
Using 3 lamp support springs and a dedicated lamp socket,
Compared to conventional lighting fixtures that support three points between bulb wall surfaces,
Due to the excellent appearance of the fixture and the ease of mounting the lamp, it has recently been widely used as a two-catch type hanging luminaire, and various structures have been developed.

However, the socket-integrated lamp holder having the above-mentioned power supply function has a heavier weight than an ordinary lamp supporting spring, and there is a problem that the suspended lighting fixture is inclined toward the socket-integrated lamp holder side. It was In particular, the inverter-lit hanging-type lighting fixture occupies a small weight in the lighting device body of the inverter lighting circuit, and is easier to tilt than the ballast-type hanging-type lighting fixture.

For this reason, in the hanging type lighting fixture of the inverter lighting type using the lamp holder with the integrated socket, the balancer is attached to the fixture body containing the inverter lighting circuit to prevent the tilting of the lighting fixture.

FIG. 4 shows an example of a hanging type luminaire equipped with such a tilt preventing balancer.
FIG. 1 is a front view showing a schematic configuration of an inverter-lighted hanging-type lighting fixture disclosed in Japanese Patent Publication No. JP-A-2003-264, and its outline will be described below.

That is, in the figure, reference numeral 8 denotes an iron plate instrument body formed in an inverted dish shape, and houses an inverter lighting circuit 9 in which circuit components are incorporated in a printed circuit board.
Reference numeral 10 is a dish-shaped reflector made of an iron plate that closes the opening of the appliance body 8, and 11 and 12 are integrated with a lamp support spring and a socket, which are arranged to face one side and the other side of the appliance body 8. In this holder, the lamp support spring 11 is screwed to the flange portion of the fixture body 8 and the reflecting shade 10 which are abutted against each other, and the holder 12 integrated with the socket is led out from the side wall of the reflecting shade 10. The lamp support spring 11 and the socket holder-integrated lamp holder 12 are for two lamps, and the large-diameter and small-diameter annular fluorescent lamps 2 (2a, 2b) are respectively attached to the bulb wall surface of the electrode terminal portion and the bulb wall surface on the opposite side. It is supported at two points in the diametrical direction.

Further, 13 is a cord case arranged in the central portion on the upper surface side of the instrument body 8, 14 is a power cord pulled out from the upper end of the cord case 713, and 15 is the instrument body 11
It is a balancer installed inside to prevent tilting. Also,
16 and 17 are miniature balls and drawstrings exposed from the lower surface of the reflective shade 10.

Although not shown, such a hanging type lighting fixture is
By hooking the hooking socket provided at the tip of the power cord 14 on the hooking ceiling provided on the ceiling surface, the cord is suspended on the ceiling surface. At the time of this suspension, since the balancer 15 of the lighting fixture is provided near the lamp support spring 11 of the fixture body 8, the lamp support spring 1
1 and the socket holder-integrated lamp holder 12 are corrected in weight, so that the lighting fixture can be hung on the ceiling without tilting.

[0011]

By the way, as shown in FIG. 3, a holder 12 having an integrated socket is generally provided with a resin housing 1 for a socket portion 4 for connecting electrodes of a fluorescent lamp and a lamp supporting member. The holder portion 5, the wiring portion 6 for connecting the power source, the power source connecting terminal portion 7 and the like are arranged, and the weight thereof is extremely heavier than the lamp supporting spring 11. Therefore, in order to balance the weight in the center of the luminaire, it is not enough to adjust the arrangement position of the built-in inverter lighting circuit 9, and the balancer 15 should be heavy and have a relatively large outer shape. Had to use.
Therefore, there is a problem that the height H of the instrument body 8 to which the balancer 15 is attached becomes high. It is also possible to form the balancer 15 in a flat plate shape and dispose it in a flat shape on the back side of the substrate of the inverter lighting circuit 9, but it is necessary to use a large resin insulating plate for insulation from the inverter lighting circuit 9. However, in this case as well, since the insulation distance between the inverter lighting circuit 9 and the balancer 15 is sufficient, the height H of the instrument body 8 is similarly increased.

Therefore, the present invention has been made in view of various problems in mounting a balancer in an inverter-lighted hanging type lighting fixture using such a lamp holder integrated with a socket, and height H of the fixture main body is increased. It is also an object of the present invention to provide a balancer mounting structure that prevents tilting without using an expensive resin insulating plate.

[0013]

For this reason, according to the present invention, a balancer for preventing tilting of a lighting fixture is attached to a lamp support spring arranged on one side of the fixture main body so as to face a holder integrated with a socket. It is configured, and specifically, is configured as follows. That is, the hanging type lighting fixture of the present invention comprises an inverted dish-shaped fixture body having an inverter lighting circuit built therein, and a dish-shaped reflector shade disposed on the lower surface side of the fixture body to close the opening of the fixture body. Then, in the hanging type lighting fixture, a lamp support spring is disposed on one side of the fixture body and a socket holder type lamp holder that is heavier than the lamp support spring is disposed on the other side to support a ring-shaped fluorescent lamp. The lamp supporting spring is characterized in that a balancer for compensating for a weight difference from a lamp holder having an integrated socket is attached. Further, the lamp support spring is characterized in that a balancer is attached to the surface of the leg portion. Further, the lamp support spring includes a balancer and the surface thereof is integrally coated with a resin material.

[0014]

Since the appliance body is not subjected to any processing for mounting the balancer, problems such as insulation distance of the inverter lighting circuit due to mounting the balancer do not occur. Therefore, it is not necessary to increase the height H of the instrument body or use an expensive resin insulating plate. Further, since the lamp support spring is attached to the outermost end of the main body of the fixture, a relatively lightweight and compact balancer can be used in time. Further, since the surface of the balancer is integrally covered with the lamp supporting spring with a resin material, the balancer is not conspicuous and good appearance can be obtained.

[0015]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows a lighting fixture for a ring-shaped fluorescent lamp using a lamp holder with a socket integrated according to the present invention.
It is a front view of an inverter lighting type hanging type lighting fixture which attached the balancer for inclination prevention to the lamp support spring.

The difference between this lighting fixture and that shown in FIG. 4 is that the balancer 15 mounted inside the fixture body 8 is eliminated and the lighting fixture is arranged so as to face the holder 12 with an integrated socket, and the ring-shaped fluorescent lamp 2 (2a, 2a, The lamp support spring 11 for supporting the bulb wall in 2b) is replaced with a lamp support spring 19 having a balancer attached, and the other configurations are similar to those of the lighting fixture of FIG. Therefore, the same components are
The same reference numerals as those in FIG. 4 are attached and detailed description thereof is omitted.

FIG. 2 shows a concrete example of the structure of the lamp support spring 19 with the balancer.

This lamp support spring 19 is similar to the conventional lamp support spring 11 in that the base lamp support spring 20 itself is similar to the conventional lamp support spring 11. It is made of a metal plate such as an iron plate and has a flat seat portion 21 and both sides of the seat portion 21. The bent leg portion 22 and the curved portion 23 curved in an arc shape at the tip end side of the leg portion 22 are integrally formed by press working, and are attached to the flange portion of the instrument body 8 on the seat portion 21. Screw holes 24 are formed. Further, the curved portion 23 is bent into an arc shape having a diameter slightly smaller than the bulb diameter of the large-diameter and small-diameter ring-shaped fluorescent lamps 2 (2a, 2b), respectively, and elastically forms the bulb wall of the ring-shaped fluorescent lamp 2 (2a, 2b). To support.

The lamp support spring 19 has an iron plate balancer 25 adhered to the surface of the leg portion 22 by welding, and further includes the balancer 25 from above the balancer 25. The resin material 26 such as is integrally covered by dipping. The balancer 25 is set in a weight range such that the inclination of the fixture body 8 is not visually recognized when the lighting fixture is suspended.

In the inverter lighting type hanging type lighting fixture thus constructed, the balancer 15 for preventing the tilt of the lighting fixture is not provided in the fixture body 8, so that the inverter lighting circuit by mounting the balancer 15 is not provided. The problem of the insulation distance of 9 does not occur, and therefore, it is not necessary to form the height H of the instrument main body 8 high or to use an expensive resin insulating plate. Further, since the lamp support spring 20 to be attached is located at the outermost end of the fixture body 8, the balancer 25 is lighter than the balancer 15 attached in the fixture body 8 and can be formed in a small size.

The balancer 25 is a lamp support spring 20.
The ring-shaped fluorescent lamp 2 is provided on the surface of the leg portion 22 of the
The ring-shaped fluorescent lamp 2 (2a, 2b) is mounted in the same manner as the conventional lamp support spring 11 without causing any trouble in the mountability.
a, 2b) can be supported. Furthermore, since the resin material 26 is integrally covered on the surfaces of the leg portion 22 and the curved portion 23 of the lamp support spring 19, the mounting of the balancer 25 is not directly visible from the outside, and there is no problem in appearance.

In the above embodiment of the present invention, the lamp support spring 20 is arranged so as to face the lamp holder 12 of the socket integrated type to support the annular fluorescent lamp 2 (2a, 2b) at two points in the diameter direction of the bulb. As an example of the two-catch type hanging luminaire, the lamp supporting spring 20 is increased to two, and the lamp supporting spring 20 and the socket holder-integrated lamp holder 12 form a ring-shaped fluorescent lamp 2 ( Two
It is also possible to support a, 2b) at 120 degree intervals.

[0024]

As described in detail above, according to the present invention,
To prevent tilting of a hanging type lighting fixture using a socket holder-type lamp holder, a balancer is attached to the lamp support spring without forming the height H of the fixture body or using an expensive resin insulating plate. It can be solved by an extremely simple means. Further, by mounting the balancer, it is possible to provide an excellent hanging-type lighting fixture without causing any problems in lamp mountability and appearance.

[Brief description of drawings]

FIG. 1 is a front view of an inverter lighting type hanging type lighting fixture of the present invention.

FIG. 2 is a side sectional view of a lamp support spring used in the component shown in FIG.

FIG. 3 is a schematic configuration diagram of a lamp holder integrated with a socket, which is a component used in a hanging type lighting fixture.

FIG. 4 is a front view of a conventional inverter-lit hanging lighting fixture.

[Explanation of symbols]

 2a Ring type fluorescent lamp 2b Ring type fluorescent lamp 8 Fixture body 9 Inverter lighting circuit 10 Reflector shade 11 Lamp support spring 12 Socket holder type lamp holder 19 Lamp support spring 20 Lamp support spring 22 Leg 25 Balancer 26 Resin material

Claims (3)

[Claims] 1. A reverse dish-shaped instrument body having a built-in inverter lighting circuit, and a dish-shaped reflector shade disposed on the lower surface side of the instrument body to close the opening of the instrument body. In a hanging luminaire in which a lamp support spring is disposed on one side and a socket holder-type lamp holder that is heavier than the lamp support spring is disposed on the other side to support an annular fluorescent lamp, the lamp support spring is a socket. A hanging type lighting fixture, wherein a balancer for compensating for a weight difference from an integrated lamp holder is attached. 2. The hanging luminaire according to claim 1, wherein the lamp support spring has a balancer attached to a surface of a leg portion. 3. The hanging lighting device according to claim 1, wherein the lamp support spring includes a balancer and a surface thereof is integrally coated with a resin material.