JPH0433676Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a light bulb socket device in which a light bulb is detachably attached to a socket via a light bulb support, and is particularly suitable for a small light bulb. Regarding.

[Problems that conventional techniques and ideas attempt to solve]

The present applicant previously reported in Utility Model Publication No. 59-26552,
This kind of light bulb socket device was proposed. However, if this conventional device is installed in a place where there is a risk of water splashing on it, water will enter the interior between the socket and the bulb support and between the bulb support and the bulb, causing electrical leakage and short circuit accidents. There was a problem that this could occur.

In addition, in order to solve these problems with the conventional device, a light-transmitting cap made of soft synthetic resin was placed over the device so as to cover the light bulb, the light bulb support, and the opening of the socket. Measures to make it waterproof have also been taken in the past.
However, in this case, the number of parts increases, and the process of covering the device with the cap at the site where the device is installed increases, which is very time-consuming.In addition, the cap is made of soft synthetic resin. Therefore, since it cannot be molded using an inexpensive injection molding method, the manufacturing cost is high, and since the cap covers the bulb, there is a problem that the loss of the amount of light from the bulb increases.

[Purpose of invention]

The present invention was developed to solve the above-mentioned conventional problems, and has a waterproof function, does not increase the number of parts, does not require an increase in the number of assembly steps at the installation site, and does not cause loss of light intensity from the light bulb. The purpose of the present invention is to provide a light bulb socket device that does not require a light bulb socket.

[Means for solving problems]

A light bulb socket device according to the present invention includes: a light bulb support having an inner cylinder part, an outer cylinder part, and a connecting part that connects the inner cylinder part and the outer cylinder part over the entire circumference; a light bulb fitted into the inner peripheral surface of the inner cylindrical portion of the light bulb support; a resin filled and hardened between the inner peripheral surface of the inner cylindrical portion of the light bulb support and the light bulb; a socket body into which the inner cylindrical portion of the light bulb support is removably inserted, and into which the inner circumferential surface of the outer cylindrical portion of the light bulb support is fitted onto the outer peripheral surface; and a socket having an electrode connected to the socket.

[Effect]

In the present invention, when the light bulb is attached to the socket via the light bulb support, the portion between the socket body and the inner cylindrical portion of the light bulb support is
Since the bulb support is covered by the outer cylindrical portion and the connecting portion, water does not enter the interior from the outside through the space between the bulb support and the socket body.

Further, since resin is filled between the light bulb and the inner peripheral surface of the inner cylindrical portion of the light bulb support, water does not enter the device from the outside through this space.

Therefore, there is no risk of water entering the inside from the outside through between the light bulb support and the socket body or between the light bulb support and the light bulb, causing an electric leakage accident or a short circuit accident.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

1 to 5 show an embodiment of the present invention. In this example, 1 is a band-shaped electric wire,
As clearly shown in the cross-sectional view of FIG. 5, conductive wires 4 and 5 are sandwiched between strips 2 and 3 made of electrically insulating soft synthetic resin. A plurality of incandescent light bulbs 7 are attached to this strip wire 1 at appropriate intervals via a socket 9 and a light bulb support 6 as described below (however, in the drawing, the light bulbs 7, sockets and 9 and only one bulb support 6 are shown).

The light bulb support 6 is made of an electrically insulating synthetic resin, and includes a roughly cylindrical inner cylinder part 6a and an inner cylinder part 6.
It integrally includes a cylindrical outer cylinder part 6b coaxial with the cylinder a, and a connecting part 6c that connects one end of the inner cylinder part 6a and one end of the outer cylinder part 6b over the entire circumference. Become. One end of the inner cylindrical portion 6a has a large opening (6d indicates this opening), and the other end is provided with a bottom 6e. And the bottom part 6e
is provided with two bottom holes 6f.

The inner cylinder part 6a, the outer cylinder part 6b and the connecting part 6
The end surface of c on the opening 6d side forms one plane 6g that extends perpendicularly to the axes of the inner cylinder part 6a and the outer cylinder part 6b. Further, a portion of the connecting portion 6c on the opposite side to the plane has a common axis with the inner cylinder portion 6a and the outer cylinder portion 6b, and has an opening 6d.
A tapered surface 6h is formed whose diameter increases toward the side. Further, as clearly shown in FIG. 4, flat portions 6i are provided on the side surfaces of the inner cylindrical portion 6a at positions that are 180 degrees apart from each other. moreover. A groove 6j extending from each of the bottom holes 6f to the flat surface 6i is provided on the outer bottom surface of the bottom 6e of the inner cylindrical portion 6a.

The inner cylindrical portion 6a of the light bulb support 6 has an opening 6d.
A glass part 7a of an incandescent light bulb 7 is inserted and fitted from the side, and a pair of lead wires 7b of the light bulb 7 are pulled out from an end inside the inner cylinder part 6a of this glass part 7a.
is drawn out of the inner cylinder part 6a through each bottom hole 6f, and after passing through the groove part 6j, is bent and placed along the flat part 6h in a direction parallel to the axial direction of the light bulb support 6.

A resin 8 such as epoxy resin is filled in a liquid state from the bottom hole 6f between the inner circumferential surface of the inner cylindrical portion 6a of the light bulb support 6 and the glass portion 7a of the light bulb 7, and then hardened. There is.

The socket 9 has a socket body 10 made of an electrically insulating synthetic resin, and a pair of electrodes 11 made of a band-shaped metal plate having spring properties and good conductivity.

The socket main body 10 has a stepped cylindrical shape having a small diameter part 10a and a large diameter part 10b,
A bottom portion 10c is provided at the end on the side of the large diameter portion 10b, while the end on the side of the small diameter portion 10a is largely opened. The outer bottom surface of the bottom portion 10c of the socket main body 10 is adhered to the surface of the band-shaped body 2 of the band-shaped electric wire 1.

The pair of electrodes 11 are placed along the inner circumferential surface of the socket main body 10 in the axial direction of the main body 10, penetrate through the bottom part 10c, and are drawn out of the socket main body 10, respectively. They are soldered (12 indicates these soldered parts). In this embodiment, the strip 3 is cut off at the soldering portion 12, and the soldering portion 12 is covered with an insulating material 13. However, the connection between the electrode 11 and the conductive wires 4 and 5 does not necessarily have to be by soldering. Further, the light bulb socket device according to the present invention does not necessarily need to be attached to a strip wire as in the case of this embodiment, but may be attached to another object.

When attaching the light bulb 7 to the socket 9 in this device, insert the inner cylindrical portion 6a of the light bulb support 6 into the socket body 10 with each lead wire 7b and each electrode 11 aligned. When you go, the inner cylinder part 6a
The outer circumferential surface of the outer cylindrical portion 6b fits into the inner circumferential surface of the socket body 10, and the inner circumferential surface of the outer cylindrical portion 6b fits into the inner circumferential surface of the socket body 10.
0, and each lead wire 7b is brought into contact with each electrode 11.

When the light bulb 7 is attached to the socket 9 through the light bulb support 6 in this way, the portion between the socket body 10 and the inner cylinder part 6a of the light bulb support 6 is connected to the outer cylinder part 6b and the joint. Since it is covered by the portion 6c, water does not enter into the interior from the outside through the space between the bulb support 6 and the socket body 10.

Furthermore, since the resin 8 is filled between the glass portion 7a of the light bulb 7 and the inner peripheral surface of the inner cylinder portion 6a of the light bulb support 6, water may not enter the device from the outside through this gap. (In general, the glass part 7a of the light bulb 7 has poor dimensional and shape accuracy, and the inner cylinder part 6
Irregular gaps are formed between the inner circumferential surface of the inner cylindrical portion 6a and the glass portion 7a, but since the resin 8 often enters these gaps, the inner circumferential surface of the inner cylinder portion 6a and the glass portion 7a
(The space between them is completely sealed with resin 8).

Therefore, in this device, there is no risk of water entering the inside from the outside through the space between the light bulb support 6 and the socket body 10 and between the light bulb support 6 and the light bulb 7, causing an electric leakage accident or a short circuit accident.

Furthermore, with this device, there is no increase in the number of parts such as the conventional cap, and there is no increase in the number of assembly steps at the site where the device is installed. Further, the cap does not cause any loss in the amount of light from the light bulb 7.

In particular, in this embodiment, the connecting portion 6c is provided with a tapered surface 6h, and after a portion of the light emitted from the light bulb 7 enters the connecting portion 6c, it is reflected by the tapered surface 6h, and the light emitted from the light bulb 7 enters the connecting portion 6c. Since the light emitted from the light bulb 7 is emitted to the outside of the device, the light emitted from the light bulb 7 can be used more effectively.

In this device, when it is desired to remove the light bulb 7 from the socket 9, by pulling the light bulb support 6 in its axial direction, the inner cylindrical portion 6a and the inner circumferential surface of the socket body 10 will fit together and the outer cylindrical portion 6b will be removed. The fitting between the socket body 10 and the outer peripheral surface of the socket body 10 is disengaged, and the light bulb 7 can be easily removed from the socket 9 together with the light bulb support 6.

[Effect of idea]

As described above, the light bulb socket device according to the present invention has excellent effects such as having a waterproof function, no increase in the number of parts, no increase in the number of man-hours for assembling the device at the installation site, and no loss of light intensity from the light bulb. It is something that can be done.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a light bulb socket device according to the present invention, FIG. 2 is a plan view showing the embodiment, FIG. 3 is a side view showing a combination of the light bulb support and light bulb in the embodiment, and FIG. Figure 5 is a bottom view showing the combination of the light bulb support and the light bulb;
The figure is a cross-sectional view showing the band-shaped electric wire in the embodiment. 6...Light bulb support, 6a...Inner cylinder part, 6b...
Outer cylinder part, 6c... Connection part, 7... Incandescent light bulb, 8
... Resin, 9 ... Socket, 10 ... Socket body, 11 ... Electrode.

Claims (1)

[Claims for Utility Model Registration] A light bulb support having an inner cylinder part, an outer cylinder part, and a connecting part that connects the inner cylinder part and the outer cylinder part over the entire circumference; and this light bulb support. a light bulb fitted into the inner peripheral surface of the inner cylindrical portion of the light bulb support; a resin filled and hardened between the inner peripheral surface of the inner cylindrical portion of the light bulb support and the light bulb; a socket body into which the inner cylindrical portion of the light bulb support is removably inserted, and into which the inner circumferential surface of the outer cylindrical portion of the light bulb support is fitted; A light bulb socket device comprising: a socket having a light bulb to which the light bulb is connected;