JPS6313655Y2 - - Google Patents

Description

[Detailed description of the invention] The conventional technique for attaching the plug metal and the ground terminal to the case of a small jack is to provide a hole in the side wall into which the plug metal is inserted and a groove into which the ground terminal is inserted. A resin case is processed and manufactured in advance, and the metal is press-fitted into the fitting hole using a press jig, with the rear end of the metal protruding into the case, and the ground terminal is inserted through the fitting groove. The base is fitted into the protruding rear end within the box, and the protruding rear end is caulked to the inner wall of the box together with the earth terminal using a press jig, so it is easy to swage the base within the box. Attachment work is not easy, and the caulking may be insufficient, or burrs are likely to form on the enclosure wall due to metal press-fitting.Furthermore, the caulking portion is exposed inside the enclosure, so the movable terminal may not be connected to the plug. When the switch is moved by insertion, the small case has the disadvantage that it may come into contact with the crimped part and cause a shooting accident.

The purpose of this invention is to eliminate the above-mentioned drawbacks.The purpose of this invention is to simply attach the ground terminal to the plug-in metal outside the box, and to attach the rear end of the metal to the plug at the same time as molding the case resin. By burying the terminal in the case wall so as not to expose it to the internal wall surface, the purpose is to eliminate all mounting looseness, achieve complete insulation, and eliminate shoot accidents of movable terminals.

An example of implementing the present invention will be explained with reference to the drawings.
The rear end 2 of the metal 1, which has the base of the ground terminal 4 caulked (5) to the step 3 of the rear end 2 of the plug insertion metal 1, is molded with the resin of the receptacle 6 at the same time. It is constructed by embedding it in the back wall so as not to expose it to the inner wall surface, and forming an opening 10 in the back wall that communicates with the hole in the metal 1. In the figure, 7 is a movable terminal, 8 is a fixed terminal, and 9 is a movable terminal. indicates a spring interposed in the movable terminal 7.

Since the present invention is constructed as described above, when molding the housing 6 with resin, the base of the ground terminal 4 is caulked 5 to the stepped portion 3 of the rear end portion 2 of the plug insertion metal 1 in advance. Since the rear end 2 of the metal insert 1 and the lower part of the ground terminal 4 are buried together with the case molding process, it is different from the conventional technique of press-fitting the metal insert into the case wall using a special press jig. This saves time and effort, and also eliminates the troublesome work of caulking the ground terminal inside the box against the protruding rear end of the press-fitted metal inside the box.

In other words, the work of fitting and caulking the ground terminal into the protruding rear end of the insertion metal inside the case is uneconomical, as it requires preparing a fitting groove in the side wall of the case in advance to fit the ground terminal into it. Since the terminal is inserted into the small case, the case wall obstructs the fitting, which makes it troublesome, and crimping requires a special press jig, which is inconvenient. As shown, since the ground terminal 4 is attached to the rear of the plug insertion metal 1 regardless of the case 6, the attachment work is very simple and easy, and as a result, the assembly and production of small jack parts is extremely labor-saving. Moreover, at the same time as resin molding of the case 6, the rear end 2 of the metal insert 1 is buried so as not to be exposed on the inner wall surface of the case, and the hole of the metal 1 is inserted into the hole of the metal 1 inside the case wall. Since the opening 10 that communicates with the insertion hole 10 is formed, there is no need to process a hole for fitting a metal into the case wall or a groove for fitting a ground terminal, and the case can be easily molded. Bury the ground terminal 4 on the rear wall of the box so that it is not exposed on the inner wall surface of the box.
By burying the lower part of the movable terminal 7, there will be no mounting looseness or burrs on the box wall due to press-fitting, and the electrical performance will be stable due to complete insulation, and there will be no risk of shooting accidents of the movable terminal 7. Yes, and ground terminal 4
Since the caulking work is extremely simple, the manufacturing of small-sized jacks becomes easier.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention. Figure 1 is an enlarged front view of the plug insertion metal, and Figure 2 is an enlarged front view of the plug insertion metal.
The right side view of the figure and FIG. 3 are enlarged front views of the main parts of the jack of the present invention. 1...Plug insertion metal, 2...Rear end, 3...
...step, 4...ground terminal, 5...caulk, 6
...Box body, 10...Opening.

Claims (1)

[Scope of utility model registration request] The base of the ground terminal 4 is caulked to the stepped portion 3 of the rear end 2 of the plug insertion metal 1, and the rear end 2 of the metal 1 is attached to the inner wall surface of the housing 6 at the same time as the resin molding of the housing 6. This small jack is embedded in a box wall so as not to be exposed, and has an opening 10 in the box wall that communicates with the hole in the metal 1.