JPS6116160B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lamp socket to which lamps of different ratings can be selectively attached, and to which lamps of either the Edison type base or the Swan type base can be optionally attached.

Usually, one indicator light is placed in one section of the indicator light case.
There are two types: those configured by housing a single lamp, and those configured by housing 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. The former is used in places where the purpose of use is relatively less stringent than the latter, where problems such as burnout of lamps do not occur, such as places where the purpose is simply to display, and the latter is It is used in places where relatively strict indications are desired, 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 a burnt-out lamp or the presence or absence of a signal to the indicator light. Used when there is. Therefore, for this reason, two types of indicator lights have been required in the past, but 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 resulted in the problem of being very uneconomical.

In order to solve the above problems, the present invention provides a lamp holder to which at least two sets of lamps with different ratings can be attached, and one set of the lamp holders has at least two substantially identical lamp holders. The above-mentioned problem is solved by configuring the lamp in a metal shape, and the shape of the lamp holder can be arbitrarily attached to either a Swan type lamp or an Edison type lamp, thereby eliminating the need for many types of sockets in the past. Functions are provided in one lamp socket so that the lamp can be attached and used according to the purpose.The lamp socket according to the present invention includes at least three hollow cylindrical lamp holders made of conductive material. are formed integrally and continuously, and the center lamp holder of the lamp holder is made larger in diameter than the lamp holders on both sides,
A lamp holder is configured to which two sets of different lamps can be attached, and the lamp holders on both sides have substantially the same lamp holder shape, and a Swan type base lamp or an Edison type base lamp is attached to the lamp holder. A lamp socket body configured by forming a hook-shaped groove and a threaded portion in the lamp holder, a lead fitting integrally attached to the lower side of the lamp socket body, and each of the lamp socket bodies. The lamp holder is characterized by a lamp contact piece, each of which has its tip portions located at a portion corresponding to the lower center of the lamp holder, and which are configured to be integrally connected at the horizontal base of the lamp holder. . Hereinafter, the present invention will be explained in detail with reference to the embodiments shown in FIGS. 1 to 6. Reference numeral 1 designates a lamp socket main body according to the present invention, in which three hollow cylindrical lamp holders are integrally connected and formed using a conductive member, and the central lamp holder 10 is connected to the lamp holders 11 on both sides, The central lamp holder 10 and the lamp holders 11 and 1 on both sides are formed to have a larger diameter than the lamp holder 11.
Lamps 2 or 3 having different ratings from each other are detachably attached to the lamp 1. Further, the center lamp holder 10 has a threaded portion 10a formed on the side wall so that the Edison type base 2a of the lamp 2 can be screwed into the side wall, and the lamp holder 10 on both sides
1 and 11 are hook-shaped grooves 11a and 1 so that the swan type base 3a of the lamp 3 can be attached by insertion.
1a is formed on the side wall, and threaded portions 11b, 11b are formed into which an Edison-type base lamp (not shown) having the same rating as the lamp 3 is screwed, and these lamp holders 11, 11 have substantially the same diameter. It is shaped like a lamp holder. Also, from the lower side of the lamp holder 10, 11, 11, a connecting piece 1 is inserted.
The vertical piece 41 of the lead fitting 4 extends through holes 12a, 12a formed in the middle of the lead fitting 4.
facing the through holes 41a, 41a, and both the through holes 12
A and 41a are connected together by screwing or caulking. The lead fitting 4 has leg portions 4 extending downward on both sides of the horizontal piece 42.
2a and 42a, and these leg portions 42
a, 42a are formed in the bobbin 60 of the transformer 6, and are fitted across recesses 60a, 60b. Reference numeral 5 denotes a lamp contact piece, and the contact piece 5 is arranged in a three-pronged manner from a horizontal base 50 with elasticity.
1, 52, and 53 respectively at the tip portions 51a, 52a,
53a is the receiver 10,1 of the lamp socket body 1
1 and 11, and both lateral sides of the vertical piece 54 hanging down from the horizontal base 50 are bent in the extending direction of the contact piece, and from the bent part Downward legs 54a, 54a
and these legs 54a, 54a are formed in recesses 60c, 60 formed in the bobbin 60 of the transformer 6.
It is arranged so that it is fitted across the space d. Therefore, the lamp socket of the present invention is composed of the above-mentioned lamp socket main body 1, the lead metal fitting 4, and the 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 the recess from the lower primary side, and from the upper secondary side. Secondary lead fittings 6 are placed in the recesses 60b and 60d of
5,65 is fitted. In something like this,
First, the recesses 60c and 60 of the bobbin 60 of the transformer 6
d, the lamp contact piece 5 is fitted through the legs 54a, 54a, and the lamp socket main body 1 with the lead fitting 4 integrally connected is attached to the leg portion 42 of the lead fitting 4.
a, 42a into the recesses 60a, 60b, and then the lamp 2 or 3 is selectively attached to the lamp socket main body 1 depending on where the indicator light is to be used. For example, if you need an indicator light to be used in a place where strictness is not required, where 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. Also, if the lamp burns out is a problem, connect the lamp 3 to the socket body 1.
It is attached by inserting it into each of the lamp holders 11, 11 on both sides of the lamp. In such a device, the lead metal fitting 4 is connected from the base 2a or 3a of the lamp 2 or 3 through the lamp holder 10 or 11.
is connected to the secondary winding of the transformer via the secondary lead metal fitting 65 in the recess 60b, while the contact 2b or 3b of the lamp 2 or 3 is connected to the lamp contact 5 in the recess 60d. The lamp circuit is connected to the secondary winding of the transformer via the secondary lead fitting 65 of the lamp circuit. In the illustrated example, the lamp 3 has a Swan type cap, but an Edison type cap can also be used. In addition, lamps 2 and 3 have a rating of 1:1/2, for example, lamp 2 is a lamp rated for 2 watts, and lamp 3 is a lamp rated for 1 watts. , the brightness can be maintained substantially the same no matter which one is selected.

According to the embodiment of the present invention, the socket main body 1 is formed by integrally connecting three lamp holders 10, 11, 11, but it is not necessarily limited to this, and the main point is a lamp holder to which at least two sets of lamps with different ratings can be attached;
One set of the lamp holders may comprise at least two sockets having 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, the shape of the lamp holder is not necessarily limited to that shown in the drawings.
For example, in the illustrated example, the lamp holder 10 has a shape that is applicable only to Edison type lamps, but it is of course possible to form it so that it can be applied to Swan type lamps as well.

Conventionally, sockets used for control equipment such as indicator lights are roughly divided into two types: Edison type and Swan type.The former is used in areas with little vibration, and the latter is used in areas with strong vibration. Therefore, there is an inconvenience in that an Edison type lamp must be purchased and used for an Edison type socket, and a Swan type base lamp must be purchased and used for a Swan type socket.

This invention can be used for both Edison-type base lamps and Swan-type base lamps, and can be used in common without restrictions depending on the type of lamp. This invention is extremely convenient and can reduce the production amount by producing one type of lamp. It can be lowered.

In addition, lamps with different ratings can be selectively attached to a single lamp socket body, so a single lamp socket body can be applied to models with different lamp ratings, and this has a wide range of applications. It is. Further, unlike conventional lamp sockets, there is no need to stock products for each model, so inventory management is easy.

[Brief explanation of the drawing]

The drawings all show one embodiment of the present invention; Fig. 1 is a partial 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 body, and Fig. 3 is a front view of the lamp socket body. 4 is a sectional view taken along the line AA in FIG. 3, FIG. 5 is a sectional view taken along the line BB in FIG. 3, and FIG. 6 is a plan view showing the positional relationship between the lamp socket body and the lamp contact piece in the attached state. 1...Lamp socket body, 2, 3...Lamp, 2a, 3a...Lamp cap, 4...Lead fitting, 5...Lamp contact piece, 6...Transformer, 1
0,11... Lamp receiver.

Claims (1)

[Claims] 1. At least three hollow cylindrical lamp holders are integrally formed with a conductive member, and the center lamp holder of the lamp holders is made larger in diameter than the lamp holders on both sides. , constitutes a lamp holder to which two sets of different lamps can be attached, and the lamp holders on both sides have substantially the same lamp holder shape, and a Swan type base or an Edison type base lamp is attached to the lamp holder. a lamp socket body formed by forming a hook-shaped groove and a threaded portion in the lamp holder to fit the lamp socket; a lead metal fitting integrally attached to the lower side of the lamp socket body; A lamp socket characterized by comprising lamp contact pieces each having a tip portion located at a portion corresponding to the lower center of each lamp holder, and the tip portions being integrally connected at a horizontal base portion of the lamp holder.