JPS5827474Y2 - Kankyuyouyouguchigane - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a cap for a bulb such as a halogen light bulb.

Conventionally, caps used in halogen light bulbs for studio lighting and the like have been joined by bonding a pair of split cap bodies together, as disclosed in Japanese Patent Publication No. 48-25230, for example.

In such conventional caps, after the external lead protruding from the sealing part of the halogen bulb is connected and fixed to one end of the empty terminal pin,
The empty terminal pin and the sealing portion are placed in one base body and pasted to the other base body to complete the lamp using adhesive or other means.

With such caps, the work of pasting together the cap body is complicated;
There was a problem with high costs.

The present invention was made to solve such problems, and consists of a base body formed by mono-molding an insulating material, and first and second through holes are formed in the thick bottom and side walls of the base body. , the tip of a hollow terminal pin to which an external lead is to be connected is positioned in the first through hole, a stud or screw is inserted into the second through hole, and the tip of the stud or screw is inserted into the second through hole. is inserted into a through hole provided in the hollow terminal pin, thereby fixing the hollow terminal pin to the base body, and further includes a gap between the first through hole and the hollow terminal pin, and a gap between the first through hole and the second through hole. The tube cap is characterized by filling the gap between the rivet or the screw with cement or adhesive.

An embodiment of the present invention will be described below with reference to the drawings.

Figures 1 and 2 show an embodiment of the present invention.
A cap body 1 constructed by mono-molding a heat-resistant insulating material such as steatite, copillite, insulator, or ceramic material.
is provided with an opening 2 on one side, a cavity 3 in the center, a thick bottom 4 on the other side, a first through hole 5 in the thick bottom 4, and a second through hole 10 in the side wall 9. ing.

The tip of a hollow terminal pin 6 made of a heat-resistant metal such as nickel to be connected to an external lead (not shown) is positioned in the first through hole 5, and the second through hole 10 and the hollow terminal pin 6 are connected to an external lead (not shown). The hollow isometric pin 6 is fixed to the base body 1 by inserting a rivet or screw 7 into a through hole 8 (see FIG. 3) provided at the tip thereof.

Furthermore, in order to more firmly fix the hollow terminal pin 6,
The gap between the first through hole 5 and the hollow terminal pin 6 is filled with cement or adhesive 11, and the gap between the second through hole 10 and the stud or screw 7 is also filled with cement or adhesive 12. .

As explained above, the bulb cap of the present invention has a hollow terminal pin to which an external lead is to be connected to the first through hole provided in the thick bottom of the cap body made of a single molded insulating material. By locating the tip, inserting a rivet or screw into the second through hole provided in the side wall, and inserting the tip of this rivet or screw into the through hole provided in the hollow terminal pin, the base body It is possible to prevent the hollow terminal pin from being pulled out from the socket, and at the same time, it is also possible to prevent the hollow terminal pin from rotating with respect to the base body, thereby preventing poor contact between the external lead part and the hollow terminal pin during use. It is possible to prevent this from happening.

Furthermore, since the gap between the first through hole and the hollow terminal pin and the gap between the second through hole and the stud or screw are filled with cement or adhesive, the adhesion strength of the hollow terminal pin to the base body is increased. It is quite large, and as a result, the connection between the external lead and the hollow terminal pin can be completed.

By adopting the above-mentioned configuration, the present invention was able to realize a single molding of the cap body, which makes the cap body more attractive compared to the conventional structure in which two parts of the cap are pasted together and assembled. The structure of the main body can be simplified.

This makes assembly work extremely simple and costs low.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front sectional view showing a tube cap which is an embodiment of the present invention, Fig. 2 is a sectional view from the same side, and Fig. 3 is a partially cutaway sectional view showing an example of a hollow terminal pin. It is. 1...Base body, 2...Opening, 3.
...Cavity part, 4...Thick bottom part, 5...
...First through hole, 6...Hollow terminal pin, 7
......Tack or screw, 8...Through hole, 9
. . . side wall portion, 10 . . . second through hole,
11.12... Cement or adhesive.

Claims (1)

[Scope of utility model registration request] A base body is constructed by mono-molding an insulating material, first and second through holes are provided in the thick bottom and side walls of the base body, respectively, and an external lead is connected to the first through hole. By locating the tip of the hollow terminal pin, inserting a rivet or screw into the second through hole, and inserting the tip of the rivet or screw into the through hole provided in the hollow terminal pin, The hollow terminal pin is fixed to the base body, and the gap between the first through hole and the hollow terminal pin and the gap between the second through hole and the stud or screw are filled with cement or adhesive. A tube cap featuring: