JPS6329393B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an indicator light that can be used for many purposes. Normally, an indicator light consists of one lamp housed in one section of an indicator light case.
Alternatively, there are two types of lamps that house multiple lamps. The former uses a lamp with relatively high power consumption in order to obtain a constant brightness with one lamp, and the latter uses a lamp with relatively low power consumption. Compared to the latter, the former is used in places where the purpose of use is relatively less strict to avoid problems such as burnout of lamps, for example, where the purpose is simply to display, and the latter is used for comparison. It is used in places where the purpose is to provide accurate information, such as alarm indicator lights in alarm devices. In other words, the main purpose of installing multiple lamps in one section of the indicator light case is to strictly determine whether a lamp going out is due to the lamp being burnt out, or whether it is due to the presence or absence of a signal to the indicator light. Used when necessary. Therefore, for this reason, conventionally 2
Although we needed an indicator light for the model, as a practical matter, the former is often used in places where precision is required. In this case, a separate test circuit was provided to check whether the lamp was burnt out and the test circuit was constantly checked, which caused the problem of being very uneconomical.

This invention was invented in view of the above-mentioned points, and an object thereof is to obtain an economical indicator light that can selectively combine the uses and purposes of the above two models with a single model of indicator light.

Hereinafter, the present invention will be described in detail with reference to an illustrative embodiment. Reference numeral 1 denotes a lamp socket body used in the present invention, which is formed by integrally connecting three hollow cylindrical lamp holders made of a conductive material.
Connect the lamp holder 10 in the center to the lamp holders 11 on both sides,
The central lamp holder 1 is formed with a larger diameter than the lamp holder 1.
0 and lamp holders 11, 11 on both sides, lamps 2 or 3 having different ratings can be attached and detached from each other. In addition, a threaded portion 10a is formed on the side wall of the central lamp holder 10 so that the Edison type base 2a of the lamp 2 can be screwed into the lamp holder 10, and the lamp holders 11 on both sides are
Hook-shaped grooves 11a, 11a are formed in the side wall so that the swan type cap 3a of the lamp 3 can be attached by insertion, and a screw to which an Edison type lamp (not shown) having the same rating as the lamp 3 can be screwed and attached if necessary. These lamp holders 11, 11 have substantially the same lamp holder shape. Furthermore, the connecting piece 12 extends downward from the lower side of the lamp holder 10, 11, 11, and the through holes 12a, 12a formed in the middle are connected to the through hole 41a of the vertical piece 41 of the lead fitting 4. , 41a, and are coupled together by screwing or caulking between the two through holes 12a and 41a. The lead fitting 4 has leg portions 42 extending downward on both sides of the horizontal piece 42.
a, 42a, and these leg portions 42
a, 42a are formed in a bobbin 60 of a transformer 6, which is a voltage supply device, and are fitted across recesses 60a, 60b. Reference numeral 5 denotes a lamp contact piece, and a three-pronged contact piece 51, 52, 53 with elasticity is attached to each end portion 5 from a horizontal base 50.
1a, 52a, 53a are extended so as to be located below the approximate center of the holders 10, 11, 11 of the lamp socket main body 1, and both lateral sides of the vertical piece 54 hanging down from the horizontal base 50 are connected to the contact piece. The leg portion 54 is bent in the direction of extension of the leg portion 54 and extends downward from the bent portion.
a, 54a, and these legs 54a, 5
4a formed in the bobbin 60 of the transformer 6
It is fitted so as to straddle between 0c and 60d. Therefore, the lamp socket of the present invention is composed of the above-mentioned lamp socket main body 1, a lead metal fitting 4, and a lamp contact piece 5. The transformer 6 has a bobbin 60 protruding from above and below, sandwiching an iron core 61, and four recesses are formed at each of the top and bottom of the bobbin. Further, 62 is a primary winding, and 63 is a secondary winding. In the illustrated example, a primary lead fitting 64 is fitted in a recess from the lower primary side, and the upper secondary Secondary lead metal fittings 65 are fitted into the recesses 60b and 60d. 7 is a transformer case, 71 is a bottom cover, and 8 is an indicator light case, into which a lens holder 9 with a lens 91, a name plate 92, and a color plate 93 attached is fitted into the front opening. In such a device, first, the recess 6 of the bobbin 60 of the transformer 6 is
Connect lamp contact pieces 5 to legs 54a and 54 at 0c and 60d.
The lamp socket main body 1 with the lead fitting 4 integrally connected to the lead fitting 4 is fitted through the lead fitting 4.
The recesses 60a, 60 through the legs 42a, 42a of the
b, then insert this transformer 6 from the lower opening 7a side of the transformer case 7, and then insert the transformer 6 into the bottom cover 7.
Close the lid according to step 1 and assemble the transformer block.
Next, a lamp 2 or 3 is selectively attached to the lamp socket body 1 depending on the location where the indicator light is used. For example, if you need an indicator light to be used in a place where strictness is not required so that there is no problem even if the lamp burns out, the lamp 2 can be screwed into the lamp holder 10 in the center of the socket body 1. Attach by. In addition, if the lamp burnout becomes a problem, the lamp 3 is attached by inserting it into each of the lamp holders 11, 11 on both sides of the socket body 1. In such a device, from the base 2a or 3a of the lamp 2 or 3, through the lamp holder 10 or 11, through the lead metal fitting 4, and through the secondary lead metal fitting 65 in the recess 60b,
It is connected to the secondary winding of the transformer, and is connected to the secondary lead metal fitting 6 in the recess 60d from the contact 2b or 3b of the lamp 2 or 3 via the lamp contact 5.
5 to the secondary winding of the transformer to form a lamp circuit. In addition, in the illustrated example, the lamp 3
Although it has a Swan type cap, it can also be used with an Edison type cap. In addition, lamps 2 and 3 are rated at 1:1/2, and for example, lamp 2 is rated for 2 watts.
Further, since the lamp 3 is rated for 1 watt, substantially the same brightness can be maintained no matter which one is selected. After either the lamp 2 or 3 is attached to the socket main body 1 in this manner, the indicator lamp case 8 is fitted into the transformer case 7 to complete the indicator lamp.

According to the embodiment of the present invention, the socket 1 is formed by integrally connecting three lamp holders 10, 11, 11, but it is not necessarily limited to such a structure, and the point is that at least It is sufficient to configure a lamp holder to which two sets of lamps with different ratings can be attached, and one set of the lamp holders to be a socket in which at least two lamp holders have substantially the same shape. That is, for example, the structure may be such that three lamp holders having a rating of 1/3 of the rating can be used for one large-diameter lamp holder having a large rating. Furthermore, although the socket body 1 of the present invention is formed by integrally connecting three lamp holders, the lamp holder does not necessarily have to be made of only a conductive material as in the illustrated example, but may be made of a material such as plastic. It can also be configured by a combination of an insulating member and a lead contact fitting. Furthermore, the shape of the lamp holder is not necessarily limited to that shown in the drawings. That is, the illustrated lamp holder 1
All of 0, 11, and 11 may be made into a receiving shape compatible only with the Edison type cap, all may be made into a receiving shape compatible with the Swan type cap, or any of the above-mentioned double caps may be made into a receiving shape compatible only with the Edison type cap. The receiving shape may be a combination of the following. Further, although the indicator light case 8 according to the present invention is constructed of a single section in the illustrated example, when configuring a collective indicator light, etc., a single case is used, and this case is divided into multiple cases. The socket body 1 may be divided into sections, and the socket body 1 may be arranged substantially in one section.

Since this invention is constructed as described above, one type of indicator light can selectively serve as two types of indicator lights, and is therefore very economical to manufacture. Moreover, it becomes possible to use it selectively depending on the use and purpose, and it can be applied to a wide range of uses and purposes. Furthermore, since there is no need to stock products for each model, inventory management is easy.

[Brief explanation of the drawing]

The drawings all show one embodiment of the present invention; Fig. 1 is a partial vertical sectional view of an indicator lamp, Fig. 2 is an exploded perspective view of the main parts, Fig. 3 is a front view of the lamp socket, and Fig. 4 is a longitudinal sectional view of a part of the indicator lamp. The figures are a cross-sectional view taken along the line AA in FIG. 3, FIG. 5 is a cross-sectional view taken along the line B-B in FIG. 3, and FIG. 6 is a plan view showing the positional relationship between the lamp socket and the lamp contact piece when they are attached. DESCRIPTION OF SYMBOLS 1...Lamp socket body, 2, 3...Lamp, 2a, 3a...Lamp cap, 4...Lead fitting, 5...Lamp contact piece, 6...Transformer, 7...
...Transformer case, 8...Indicator light case, 10,
11...Lamp receiver.

Claims (1)

[Scope of Claims] 1. At least three hollow cylindrical lamp holders are integrally formed, and one lamp holder among the three lamp holders is connected to the remaining two lamp holders. A lamp holder is formed with a diameter larger than that of the holder to which two sets of different lamps can be attached, and the remaining two
a lamp socket body formed by forming two lamp holders into substantially the same lamp holder shape, a vertical piece integrally connected to a connecting side provided on the lower side of the lamp socket body, and a vertical piece on both sides. A lead fitting consisting of a horizontal piece forming a leg to be connected to a voltage supply device, and a contact piece having a tip located at a portion of the lamp socket main body corresponding to the lower center of each lamp holder on each of the holders. A lamp socket formed by a lamp contact piece integrally formed with a horizontal base and having legs connected to the voltage supply device on both sides of the horizontal base is housed in one section of the indicator light case. An indicator light characterized by: