JPS597162B2 - Multi-light discharge lamp equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chandelier-shaped multi-lamp discharge lamp fixture that utilizes a synthetic resin integral molding technique.

Multi-light discharge lamp fixtures as shown in FIGS. 1 and 2, in which each light is arranged radially, are widely used as simple chandeliers.

Its main components are one central fixture body 1 and a plurality of lamp bodies 2 arranged radially around its outer periphery.

In addition, the metal arm 91 that connects the central appliance body 1 and each lamp body 2, its set screw 92, the arm cover 93 that covers the lower side of the metal arm 91, and the hanging tool 9 that supports the central appliance body 1.
4 etc. are also included.

One of the drawbacks of the conventional multi-light discharge lamp fixtures as described above is that the central fixture body 1 and each lamp body 2 are manufactured separately, and they are connected together using independent parts such as the metal arm 91. The second problem is that it increases the number of man-hours and costs.

Therefore, if we apply integral molding technology there,
It seems that something advantageous can be obtained in terms of cost.

Let's examine the equipment shown in Figures 1 and 2 in more detail.

The basic role of the central fixture body 1 is to house a ballast 19 essential for lighting the discharge lamp.

The purpose of the lamp body 2 is to house an annular fluorescent lamp or discharge lamp 29.

Due to the convenience of storing parts and consideration of concealing parts,
Both the central fixture body 1 and the lamp body 2 are divided into upper and lower halves.

For convenience of explanation, the upper part is referred to as the upper half 11,
We will name it 21, and the lower one will be named 12.22.

Note that 18 is a switch, 17 is an auxiliary cover, and 28 is a discharge lamp holder.

In the one shown in FIGS. 1 and 2, the upper half body 11 for the main body and the upper half body 21 for the lamp body are connected by a metal arm 91.

For this reason, one idea that comes to mind is to integrally mold the above two types of upper halves 11 and 21, but as will be pointed out later, this involves certain problems and is not a good idea.

Another idea is to integrally mold the two types of lower halves 12 and 22, but as will be explained later, this is also not practical.

The present invention is an attempt to make an integral molding method practical and cost-effective.

FIG. 3 shows the basic structure of the device of the present invention,
The same reference numerals as in FIGS. 1 and 2 are used.

This will be explained below using FIG.

Here, each lamp body 2 is arranged so as to be in contact with the central fixture main body 1.

This is because integral molding cannot be performed if they are separated.

Integral molding is performed between the lower half body 12 for the main body and the upper half body 21 for each lamp body.

One of the features of the present invention is that the upper and lower halves are integrally molded in a mixed manner.

This is integrally molded from synthetic resin. The upper halves 21 for each lamp body are arranged radially around the lower half body 12 for the main body, and the whole body unfolds flatly, so there is no problem in terms of molding technology, but for reasons of strength, the lower halves 21 for the main body half body 1
2. It is desirable to have wide communication between the upper halves 21 for the lamp body.

In practice, in order not to waste the material of the communication part 10,
It is a good idea to use it as a partition wall that is shared by the central fixture body 1 and the lamp body 2.

Therefore, the present invention is particularly suitable for small-sized fixtures such as those made up of a single unit 9, and is not suitable for large-sized fixtures in which the lamp bodies 2 are arranged in a far-circular arrangement.

Reference numeral 28 in FIG. 3 is a discharge lamp holder, and a discharge lamp 29 is attached to the lower surface of the upper half body 21 for the lamp body.

Further, the stabilizer 19 is directly attached to the lower surface of the upper body 11.

These points are the same as those of the conventional method. Here, while referring to Figures 3 to 6, we will explain how integral molding should be done.
I want to think about it again.

As is clear from the above description, the upper half 11 and the lower half 12 belonging to the central fixture body 1 are integrally molded, or the upper half 21 and the lower half 22 belonging to the lamp body 2 are integrally molded. That is difficult.

Therefore, if we exclude the above-mentioned combinations from the combinations for integral molding and pick out the remaining ones, we get the ones shown in Figures 4, 5, 6, and 3.

Below, we will discuss each of these individually in this order.

The case shown in FIG. 4 is one in which the lower halves 12 and 22 are integrally molded, but it is inferior to the conventional one in the following respects.

(1) During maintenance and replacement of the discharge lamp 29, each lower half body 122
It is necessary to remove 2 all at once, which is difficult to do.

Even if an attempt is made to attach and detach the lamp upper half body 21 and remove the discharge lamp 29 upward, the results are largely the same.

(2) By matching the material of the main body lower half 12 to that of the lamp body lower half 22 and increasing the light transmittance, the interior of the central fixture main body 1 can be easily seen from below9, and its commercial value. decreases.

The case in Figure 5 This is made by integrally molding the upper halves 11 and 21.

This has the following drawbacks. (3) Each upper body 1
1.21 is made of synthetic resin for reasons of weight and cost.

Therefore, although the lower body half 12 is particularly made of metal and the ballast 19 is attached thereto, the upper body half 11 is still considerably heated by convection heat from the ballast 19.

There would be no problem if the upper halves 11 and 21 were integrally molded from heat-resistant resin, but this would result in high costs.

(4) Since the ballast 19 is attached to the lower body 12, the noise inside the room increases due to the vibrations generated therefrom.

In addition, the lower body 12 facing the interior of the room becomes hot, causing discomfort to those who touch it.

The case shown in FIG. 6 is a case in which the upper half body 11 for the main body and the lower half body 22 for each lamp body are integrally molded from synthetic resin.

In this case, the problems that are almost the same as those in Sections 1), (3), and (4) of the preceding paragraph are included, and the case shown in Figure 3 is not practical. be.

If you are forced to look at the problems with this, the integrally molded product 12,
Since the parts 11 and 22 are arranged on both sides of the top and bottom of 21, it is more difficult to assemble than the parts shown in Figs. 4 and 5, in which they are concentrated on one side.

However, this is not enough to impair the effect of reducing assembly man-hours through integral molding.

On the other hand, problems such as the above-mentioned items (1)-{4) are completely resolved.

Although this cannot be seen as an advantage over conventional conventional products, it can be summarized as follows.

(1') Maintenance and replacement of the discharge lamps 29 can be performed simply by removing the individual lower halves 22 for lamp bodies, making the work easier.

(2) It is possible to increase the opacity of the main body lower half body 12 and the light transmittance of the lamp body lower half body 22, and no contradiction occurs between them.

(3) The lower body half 12 and the upper lamp body 21 can be integrally molded from a synthetic resin with low heat resistance.

(4) Easy-to-touch areas inside the room do not get hot,
There is no increase in noise either.

7 to 9 show more specific embodiments of the present invention.

This will be supplementarily explained below.

The lower half body 12 for the main body and the upper half body 21 for each lamp body are integrally molded from a synthetic resin made of medium impact styrene to which titanium white is added as a pigment.

It is opaque and has a light transmittance of about 10%.

Therefore, the inside of the central instrument main body 1 is not seen through.

Each lower half body 22 for the lamp body is made of transparent styrene containing an ultraviolet absorbing material, and has a light transmittance of about 90.

Although not shown in the drawings, each of the lower half bodies 22 for a lamp body is detachably connected to the corresponding upper half body 21 for a lamp body by conventional rotary four hook means.

The main body of the hanging tool 94 is a power cord, and is of a so-called cord pendant type.

Reference numeral 95 denotes a cord storage cover fixed to the center of the upper surface of the main body half body 11.

This accommodates the extra length of the cord that occurs when adjusting the hanging height.

The number of lamp bodies 2 is three in total.

In principle, you can use two pieces, but if there are two pieces, the brightness will be insufficient and it will not look like a chandelier.On the other hand, if there are more than four pieces, it will be difficult to use the simple cord pendant method due to the overall weight. , so there were three so-called three lights.

If the lower half body 12 for the main body and the upper half body 21 for each lamp body are integrally molded from synthetic resin, the weight of the whole can be reduced, which is particularly advantageous in making a three-lamp-shaped cord pendant.

Reference numeral 15 in the figure is a small hole formed in the center of the lower half body 12, from which an operating string (not shown) of the switch 18 is lowered.

Reference numeral 16 denotes a set screw that connects the upper body half 11 and the lower body half 12.

As the discharge lamp 29, a 30W annular fluorescent lamp is used.

It is detachably attached to a discharge lamp holder 28 screwed to the lower surface of each lamp body upper half body 21.

As described above, in the present invention, the lower half rest for the main body and the upper half rest for each lamp body are integrally molded from synthetic resin.

According to this, there is no need to interpose an independent part between the lower half of the main body and the upper half of each lamp body, and there is no need to take the time to connect them, which is beneficial in reducing the cost of the entire fixture. .

Furthermore, because the object of integral molding is specifically the lower half of the main body and the upper half of each lamp body, even though it is an integral molded product, maintenance and replacement of the discharge lamp, transparent inspection of the inside of the central fixture body, and synthesis are possible. It has the advantage that it is not disadvantageous compared to conventional general resins in terms of heat resistance, noise, etc., and does not impose any harmful conditions.

Therefore, it is possible to implement the present invention more effectively than is possible.

[Brief explanation of drawings]

Fig. 1 is a side view showing a conventional general discharge lamp device for multiple lamps, Fig. 2 is an exploded perspective view of its main parts, Fig. 3 is a sectional view showing the basic structure of the device of the present invention, and Figs. The figure is a cross-sectional view for reference showing the method of integral molding according to the present invention, FIG. 7 is a perspective view of a multi-lamp discharge lamp fixture corresponding to an embodiment of the present invention, and FIG. 8 is a partially cutaway view. FIG. 9 is a perspective view showing an upper half-rest for the main body and a lower half-shut for each light, both of which are integrally molded. 11 in the figure is the upper half rest for the main body, 12 is the lower half rest for the main body, 21
is the upper half for the lamp, 22 is the lower half for the lamp, 19 is the ballast,
29 indicates a discharge lamp.

Claims (1)

[Claims] 1 Equipped with one central fixture body with upper and lower halves stacked vertically, multiple lamps with upper and lower halves stacked vertically, and a ballast on the underside of the upper half of the body. Install the
In a device with a discharge lamp attached to the lower surface of the upper half of each light body, each light body is arranged radially around the outer periphery of the central fixture body so as to be in contact with it, and the lower half of the main body and the upper half of each light body are combined. A multi-light discharge lamp fixture characterized by being integrally molded from resin.