JPS639932Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The present invention relates to lighting fixtures, and in particular to lighting fixtures that provide direct lighting and indirect lighting in a single fixture in a ceiling-mounted or hanging fixture. be.

[Technical background of the invention and its problems]

As shown in FIG. 1, a fluorescent lamp 2 mainly used for direct illumination is disposed on the lower surface of the main body 1, and
In a lighting fixture that has a structure in which an incandescent light bulb 3 mainly for indirect lighting is mounted on the top surface of the fixture body 1 and is used by being directly attached to the ceiling 4, the incandescent light bulb 3 used is one with a relatively small watt capacity. be done. This is because the installation space for the incandescent light bulb 3, which is formed between the top surface of the appliance body 1 and the ceiling 4, cannot be secured in practice. This is because there is a risk of burning. Therefore, although the incandescent light bulb 3 with a wattage capacity larger than the specified wattage capacity is displayed, it is indicated that the incandescent light bulb 3 with a larger watt capacity should not be used. There is a risk of installing an incandescent light bulb with a capacity higher than the specified wattage by ignoring this.

Incidentally, common incandescent light bulbs include an eggplant-shaped eggplant bulb 5 as shown in FIG. 2, and a spherical ball bulb 6 as shown in FIG. 3. Further, in the case of the eggplant bulb 5, the dimensions are the same regardless of the wattage capacity, and in the case of the ball bulb 6, the outer diameter is made larger as the wattage capacity increases.

When forming a lighting fixture with the above structure, a ball light bulb 6 with a small watt capacity and a small diameter is used as the incandescent light bulb 3, and the space between the top surface of the fixture body 1 and the ceiling 4 is filled with the ball. If the size is necessary and sufficient for attaching the light bulb 6, a ball light bulb 7 having a large outer diameter and a large wattage capacity as shown in FIG. 4 cannot be attached, and the above-mentioned problem will not occur.

However, even with this method, it is possible to install an eggplant bulb 5 instead of the ball bulb 6 as shown in FIG. Capacity types can also be installed. Therefore, when the eggplant bulb 5 with such a large wattage capacity is installed, the radiant heat of the eggplant bulb 5 not only has an adverse effect such as burning the ceiling 4 and causing discoloration and deterioration, but also damages the fluorescent lamp on the bottom of the fixture body 1. The radiant heat from the eggplant bulb 5 also reaches the ballast, changing the temperature characteristics of the ballast's winding temperature and having an adverse effect on the ballast's characteristics. The illuminance and balance of the lighting would be disrupted, making it impossible to obtain the desired light distribution characteristics.Furthermore, in order to cut out the direct light from the incandescent bulb 3, the synthetic resin light-shielding shade 8 provided on the outer periphery of the top surface of the fixture body 1 would not function as the incandescent bulb 3. The radiant heat of the eggplant bulb 5 may cause it to become deformed or discolored, and in the worst case, it may catch fire, which is dangerous.

[Purpose of invention]

The present invention was developed in view of the above points, and an object of the present invention is to provide a lighting fixture to which an incandescent light bulb having a specified watt capacity or more cannot be attached.

[Summary of the idea]

In order to achieve the above object, the present invention provides a lighting device in which a fluorescent lamp mainly for direct illumination is disposed on the bottom surface of the device body, and a ball light bulb mainly for indirect illumination is disposed on the top surface of the device body. A regulating plate is provided on one side of the ball bulb, and a socket for mounting the ball bulb is inclined toward the regulating plate, and when the ball bulb is attached to the socket, the center of the ball bulb is The ball bulb has a structure in which the distance from to the regulation plate is slightly larger than the radius of the ball bulb, so that the ball bulb is close to the outer surface of the regulation plate, and the ball has a large specified watt capacity and a large outer diameter. Even if an attempt is made to attach an eggplant bulb, which is longer than a light bulb or a ball bulb, to the socket, the regulation plate becomes an obstacle and prevents the attachment.

[Example of idea]

An embodiment of the present invention will be described below with reference to FIGS. 6 to 8.

The lighting fixture of this embodiment has a disc-shaped fixture main body 1.
1, a first lighting section 12 for direct illumination provided on the bottom surface of the device main body 11, and a second lighting section 3 for indirect lighting provided on the top surface of the device main body 11.

The device main body 11 has an engaging edge 14 bent downward at its periphery, and a locking rod 15 having an intermediate portion wound around both sides of the periphery and a tip wound around both ends. A locking spring 16 whose both ends are expanded downward is attached to each of the locking springs 16.

Further, a shade 17 that covers the first lighting section 12 is attached to the lower surface of the device main body 11. This shade 17 is made of a translucent milky white synthetic resin, and has an open upper surface. Opening edge 1
The outer diameter up to 8 is larger than the outer diameter up to the engagement edge 14 of the instrument main body 11, and an annular shade frame 19 is attached to the opening edge 18 of the shade 17.
is attached, and on the inner periphery of this shade frame 19 is a receiving portion 2 for receiving the engaging edge 14 of the instrument main body 11.
0 is formed. Then, with the engaging edge 14 of the instrument body 11 engaged with the receiving portion 20 of the shade frame 19, the upper surface of the instrument body 11 is set higher than the upper surface of the shade frame 19 at the upper peripheral edge of the instrument body 11. A stepped portion 21 is formed. Furthermore, receiving metal fittings 23 each having an engagement hole 22 into which the locking rod portions 15 at both ends of the locking spring 16 are inserted and engaged are attached to the inner surfaces of both sides of the shade 17. shade frame 1
9, the locking rod portion 15 of the locking spring 16 is narrowed by the engagement hole 22 against the spring force due to the lowering of the receiving metal fitting 23, and the shade 17 and the shade frame 19 are held in the lowered state. .

Further, an annular light-shielding shade 24 surrounding the second illumination section 13 is disposed on the upper surface side of the device main body 11, and this light-shielding shade 24 is made of a milky-white synthetic resin having translucency. The diameter of the opening is larger than the diameter of the instrument main body 11 and is placed on the upper surface of the shade frame 19. Further, the upper opening of this light-shielding shade 24 is reduced in diameter toward the inside to be smaller than the outer diameter of the instrument body 11, and is locked to the outer periphery of the instrument body 11 when descending to prevent it from falling. ing.

The first lighting section 12 includes large and small diameter annular fluorescent lamps 32 supported by elastic support pieces 31 provided on the lower surface of the device main body 11, a ballast (not shown), and a lighting tube 33. It is equipped with

The second illumination section 13 uses the appliance main body 11 as a regulating plate to integrate the two, and has a cylindrical socket mounting plate 41 erected at the center of the upper surface of the appliance main body 11 as a regulating plate. , an annular reflecting plate 42 is attached to the upper part of this socket mounting plate 41 so as to face the upper surface of the above-mentioned instrument main body 11, and the space between this reflecting plate 42 and the instrument main body 11 serving as a regulating plate is faced. It is provided with a socket 43 attached to the socket mounting plate 41 so as to be inclined toward the upper surface side of the appliance main body 11 serving as a regulating plate, and a ball light bulb 44 screwed into the socket 43. The socket mounting plate 41 integrally has an inclined portion 45 that is inclined toward the upper surface side of the device main body 11 as the regulating plate, and this inclined portion 45
The socket 43 is secured with a screw 46 and is installed in an inclined position. When the ball light bulb 44 is screwed into this socket 43, the appliance main body 11 as the regulating plate is connected from the center of the ball light bulb 44.
The distance to the top surface is set to be slightly larger than the radius of the ball light bulb 44.
The outer surface of the regulating plate is close to the upper surface of the instrument main body 11 serving as a regulating plate, and the interval therebetween is narrow.

Note that the upper opening edge of the light-shielding shade 24 is located midway between the instrument main body 11 and the reflecting plate 42 under normal conditions.

Further, on the upper part of the socket mounting plate 41, there is provided a mounting portion 54 provided with a hook ceiling 53 which is mechanically coupled and electrically connected to a hook rosette 52 attached to the ceiling surface 51. Further, a switch (not shown) is provided on the lower surface of the instrument main body 11, and an operating string of this switch is suspended below the shade 17.

Next, the operation of this embodiment will be explained.

When the fluorescent lamp 32 of the first illumination section 12 is turned on by operating a switch, the light from the fluorescent lamp 32 passes through the shade 17 and is directly irradiated.

When the ball light bulb 44 of the second lighting section 13 is turned on by operating a switch, the direct light from the ball light bulb 44 is softened by the shade 24, and the light reflected by the reflector 42 is emitted. is irradiated from between the light-shielding shade 24 and the reflecting plate 42, providing soft indirect side illumination.

Further, a fluorescent lamp 32 of the first lighting section 12,
When both the ball light bulbs 44 of the second lighting section 13 are turned on, the diversified light distribution becomes more intense.

The light-shielding shade 24 is placed on the shade frame 19, and a stepped portion 21 is formed between the upper surface of the shade frame 19 and the upper surface of the device main body 11 by the engaging edge 14, and the light-shielding shade 24 is positioned so that the light-shielding shade 24 is horizontal. The range of movement in the direction is restricted, and the shading shade 2
4 does not approach the ball bulb 44 abnormally, and the light shielding shade 24 is not deformed by the heat of the ball bulb 44.

Furthermore, when replacing the ball light bulb 44, when the shade frame 19 is pulled downward, the distance between the locking rod portions 15 of the locking spring 16 is narrowed by the engagement hole 22 of the receiving metal fitting 23, and the shade frame 19 is lowered. , this shade frame 19
When the shade frame 19 is lowered, the shade 24 placed on the shade frame 19 is also lowered, and when the shade frame 19 is lowered to a predetermined position, the size of the upper opening of the shade 24 is smaller than the outer diameter of the instrument body 11. Therefore, the light-shielding shade 24 is engaged with the periphery of the instrument body 11 and is prevented from descending any further. In this state, the upper part of the light shielding shade 24 is lowered to a position near the lower part of the ball light bulb 44, the second illumination part 13 is opened, and the ball light bulb 44 can be replaced without the light shielding shade 24 becoming an obstacle.

Further, by removing the locking spring 16 from the engagement hole 22 of the receiving metal fitting 23 in this state, the shade 17 can also be removed from the instrument body 11, and the fluorescent lamp 32 can be replaced.

When replacing the ball light bulb 44,
The socket 43 to which the socket is attached is attached to the socket mounting plate 41 in an inclined state toward the upper surface of the instrument body 11 serving as a regulating plate, and the space between the socket 43 and the upper surface of the instrument body 11 serving as a regulating plate is designated. Since the space is the minimum necessary and necessary to accommodate the Watt capacity ball light bulb 44,
Ball light bulb with a large outer diameter that exceeds the specified wattage capacity 4
4, the outer surface of the device comes into contact with the upper surface of the device main body 11 as a regulating plate, and this device main body 11
The large ball bulb 44 cannot be installed because it gets in the way, and even if you try to attach the eggplant bulb 5 as shown in Figure 2, the eggplant bulb 5 is longer than the ball bulb 44, so it is the same as above. The outer surface of the instrument body 11, which serves as a regulating plate, collides with the upper surface of the instrument body 11, making it impossible to attach it to the socket 43. Therefore, the ball bulb 44 or the eggplant bulb 5 having a large wattage capacity will not be attached by mistake.

Incidentally, the inclined portion 45 for inclining the socket 43 is formed on the socket mounting plate 4 in the above embodiment.
1, but as shown in FIG. 9, an inclined spacer 61 interposed between the socket mounting plate 41 and the socket 43 to tilt the socket 43 may be formed.

Further, the regulation plate may be separate from the device main body 11,
In particular, when the socket 43 is installed upright on the top surface of the device body 11, the socket mounting plate 41 is used as a regulating plate, the sloped portion 45 is provided on the device body 11, and the socket 43 is installed in the same manner as above. It may be tilted toward the socket mounting plate 41 serving as a regulating plate, and the space between the socket 43 and the socket mounting plate 41 serving as a regulating plate may be a space into which only the ball light bulb 44 of the specified wattage capacity can be inserted.

[Effect of idea]

According to the present invention, a regulation plate is provided on one side of the ball light bulb, and the socket for mounting the ball light bulb is inclined toward the regulation plate side, and when the ball light bulb is attached to the socket, the ball The distance from the center of the bulb to the regulation plate is slightly larger than the radius of the ball bulb, so that the ball bulb is close to the outer surface of the regulation plate, so the space between the socket and the regulation plate is reduced. Since the can only fit ball bulbs of a certain size with the specified wattage capacity, it is not possible to attach ball bulbs with large wattage capacities, large outer diameters, or long eggplant bulbs.

Therefore, there is no risk of accidentally or intentionally installing a light bulb with a wattage capacity higher than the specified value, and the radiant heat emitted by the ball light bulb will not be excessive, so there will be no chance of scorching, discoloring, or deteriorating the ceiling surface. In addition, it does not adversely affect the fluorescent lamp on the bottom of the fixture body, and the desired light distribution characteristics based on the design concept can be maintained without disrupting the balance between the light intensity of the ball bulb and the fluorescent lamp. Even if a light shielding shade made of synthetic resin is provided surrounding the light bulb, this light shielding shade is safe because it is not subject to excessive heat and there is no risk of deformation, deterioration, or fire.

[Brief explanation of drawings]

Figures 1, 4, and 5 are partially vertical front views showing conventional lighting equipment, Figure 2 is a front view of an eggplant bulb, Figure 3 is a front view of a ball light bulb, and Figures 6 and 7. The figure is a partially vertical front view showing an embodiment of the lighting device of the present invention, FIG. 8 is an enlarged vertical cross-sectional view of the ball light bulb mounting part, and FIG. 9 is a vertical cross-sectional view showing a modification thereof. 11... Appliance body integrated with regulation plate, 32...
Fluorescent lamp, 43...Socket, 44...Ball light bulb, 45...Slope portion, 61...Spacer.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A fluorescent lamp mainly for direct illumination is disposed on the lower surface of the apparatus body, and a ball light bulb mainly for indirect illumination is disposed on the upper surface of the apparatus body, and the above-mentioned A regulation plate is provided on one side of the ball bulb, and a socket for mounting the ball bulb is arranged inclined toward the regulation plate, so that when the ball bulb is installed in the socket, the regulation plate is disposed from the center of the ball bulb. A lighting device characterized in that the distance to the plate is slightly larger than the radius of the ball bulb so that the ball bulb is close to the outer surface of the regulating plate. (2) The regulation plate is formed integrally with the appliance body, and a socket mounting plate is provided upright on the upper surface of the appliance body as the regulation plate, and an inclined part is formed on the socket attachment plate, which is inclined toward the regulation plate side. Claim 1 of the first claim for registration of a utility model, characterized in that the socket serving as the regulating plate is attached to the inclined portion at an angle toward the upper surface of the device main body.
Lighting equipment as described in section. (3) Utility model registration claim 2, characterized in that the inclined portion is formed by a spacer interposed between the socket and the socket mounting plate and tilting the socket toward the regulating plate. Lighting equipment as described.