JP3168317B2 - Telephone socket with metal case and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone socket for connecting a signal transmission line with a metal case.
The present invention relates to a first metal case and a second metal case which are integrally formed by press molding and attached to a telephone socket surface. The metal case in which the first metal case and the second metal case are closely bonded to each other blocks interference to peripheral equipment due to leakage of transmission signals, prevents interference by external noise such as static electricity, and prevents communication transmission. Quality can be maintained.

[0002]

2. Description of the Related Art At present, adapter sockets are widely applied, and are widely used, for example, in relay telephones, computer networks, wall sockets, etc., particularly in the field of network signal transmission.

By the way, the biggest problem of the adapter socket used in the communication network is the problem of the interface. Various adapter sockets have been developed to solve this problem. However, with the advancement of science and technology, computers have become widespread, transmission data on networks has increased remarkably, and it has become necessary to increase the transmission speed. As a result, the computer network is susceptible to external noise interference, and the network lines are susceptible to mutual interference. as a result,
This has led to problems such as erasure of data, computer shutdown, and disruption of information transmission throughout the network. For this reason, each country has established a standard for electromagnetic interference, but how to prevent electromagnetic interference is an extremely important issue in current network transmission.

[0004] In particular, in signal transmission using a telephone line, prevention of electromagnetic interference in a telephone socket (rosette) has become an important issue.

[0005]

The conventional telephone socket is generally not considered in terms of preventing the above electromagnetic interference, and is inconvenient in use. In addition, there is a disadvantage that production and assembly are not easy and the production cost is high. The main object of the present invention is simple installation, low cost,
An object of the present invention is to provide a telephone socket with a metal case that is easy to assemble and assemble, and a method of manufacturing the same.

[0006] Further, since the conventional metal case is not generally formed as a single piece, there is a gap at the joint surface. For this reason, the effect of blocking electromagnetic interference was not very ideal. A second object of the present invention is to cover the exposed portion of the telephone socket with a metal case formed by joining a first metal case and a second metal case integrally formed by press molding, thereby reducing electromagnetic interference. It is an object of the present invention to provide a metal case for a telephone socket, which is reduced to a minimum or a non-problematic level to improve communication quality.

[0007]

To achieve the above object, a telephone socket with a metal case according to the present invention comprises a terminal set.
A telephone socket having a
And a first and a second metal case that surrounds without gaps,
Each of the first and second metal cases prevents electromagnetic interference
Press molding so that there is virtually no gap
It is formed integrally.

The terminal set is connected to an external connection cable, and the telephone socket is used for inserting a telephone plug.
Telephone socket body and the signal transmission line is the telephone socket
A circuit board for connecting a contact terminal, which is in contact with the contact end of the signal transmission line when inserted into the connection opening, with the terminal set
And

The integrally formed first metal case is provided with a wire through hole for passing an external connection cable having a grounding jacket extending around the signal transmission line.

Further, the envelope is for external connection cable ground, the metal sleeve in close contact with the line through-hole of the first metal case, this metal sleeve Yes hook is provided, said telephone socket by the hook And is fixedly engaged with the slit hole.

The integrally formed second metal case includes:
The telephone socket metal front case is provided has an opening for extending provided outside the front <br/> Symbol second metal casing, the opening covers the telephone socket It is formed so as to be in close contact with the metal front case.

The first metal case and the second metal case are both formed into a box-shaped casing having one end opened by press molding.

[0013] To achieve the above object, a manufacturing method of the metal case with a telephone socket of the present invention, (A) Telephone
Providing a socket; and (B) an external connection cable.
(C) the external connection cable
Electrically connecting the telephone socket to the telephone socket;
(D) The first metal case integrally formed by press molding
(E) providing a metal case and a second metal case;
The telephone socket is substantially enclosed by the first and second metal cases.
And enclosing without any gaps.

Further, the method for manufacturing a telephone socket with a metal case according to the present invention comprises the following steps: (F) fitting the external connection cable having a grounding jacket extending around a signal transmission line; Providing a metal sleeve that can be electrically connected to the grounding jacket of the cable.

[0015] before Symbol step (A) is, (a1) press formed
Manufacturing a metal front case by shape ;
(A2) covering the periphery of the connection opening of the telephone socket with the metal front case.

The step (D) includes the step (d1) of the first step.
Wire for passing the external connection cable through the metal case
Forming a hole.

In the step (E), (e1) the metal
Phone socket with a front case made of
Extending to the outside through the opening of the second metal case,
(2) Put a metal case on the telephone socket,
Engaging with a locking hole; (e2) the first
Put the metal case on the terminal set and use the locking projections and locking holes
Further engaging the telephone socket.
You.

[0018] The step (C) includes the steps of covering the end of the external connection cable wrap jacket ground at the end of (c1) the external connection cable, (c
2) fitting the metal sleeve to the grounding jacket and making the metal sleeve adhere to the grounding jacket; and (c3) fixing the metal sleeve to the telephone socket by a hook of the metal sleeve.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Figure 1 is a perspective view of a-out telephone socket with the metal case of the present invention, FIG 2 is an exploded view. In FIG. 2, reference numeral 22 denotes a parallel terminal set which is inserted into the hole of the circuit board 21 and soldered. The circuit board 21 is connected to the contact terminals 23 and is engaged with the telephone socket body 24. Is configured. A metal front case 25 is fitted to the surface of the telephone socket body 24 on the connection port side. The terminal set 22, the circuit board 21, the contact terminals 23, and the telephone socket main body 24 constitute a basic structure of the telephone socket 1 .

A feature of the present invention resides in that the exposed portion of the telephone socket 1 is covered with a metal case composed of a first metal case 3 and a second metal case 2 integrally formed by press molding, respectively. The shapes of the first metal case 3 and the second metal case 2 can be determined according to the shapes of the telephone socket main body 24 and the terminal set 22.

The first metal case 3 has a through hole 6 formed therein, and the external connection cable 5 is connected to the terminal set 22 through the through hole 6. The external connection cable 5 includes a grounding jacket extending around the signal transmission line. In this example, the grounding jacket is a metal net 8. The metal net 8 is folded back so as to cover the end of the external connection cable 5, and the metal sleeve 4 is fitted on the metal net 8 to be in close contact therewith. Leak static electricity by contact. The metal sleeve 4 is provided with a hook 7 having a metal locking projection 26, and the projection 26 is engaged with the slit 261 of the telephone socket main body 24 to fix the external connection cable 5. In the present embodiment, the metal sleeve 4 is used to leak static electricity. However, if the telephone socket with a metal case is used for electromagnetic shielding and it is not necessary to eliminate the influence of static electricity, the metal sleeve 4 is omitted. You can also.

On the other hand, the telephone socket 1 is provided in the second metal case.
An opening 9 is provided through which a metal front case 25 covering the telephone socket body 24 and the second metal case 2 are brought into close contact with each other, whereby a more suitable shielding effect is achieved. The first metal case 3 and the second metal case 2 are provided with a locking projection 27 and a locking projection 28, respectively.
281. As a result, the first metal case and the second metal case are fixed to the telephone socket main body 24.

[0023]

As is apparent from the above description of the preferred embodiment for carrying out the present invention, the telephone socket with a metal case of the present invention has a first metal case and a second metal case serving as a metal case. Since the cases are integrally formed by press molding, a better electromagnetic interference shielding effect is achieved than in the conventional device. Therefore, by using the telephone socket with a metal case according to the present invention, communication transmission quality can be improved. Also, use and mounting are simple, and production and assembly are easy. Further, according to the present invention, it is possible to reduce costs.

[Brief description of the drawings]

FIG. 1 is a perspective view of a telephone socket with a metal case according to the present invention.

FIG. 2 is an exploded perspective view showing the telephone socket with a metal case shown in FIG. 1;

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-176814 (JP, A) JP-A-62-154588 (JP, A) JP-A-63-168237 (JP, A) 72753 (JP, U) JP-A 63-33581 (JP, U) JP-A 3-131074 (JP, U) JP 7-22859 (JP, Y2)

Claims (6)

(57) [Claims] (A) providing a telephone socket body with a molded container; (B) providing an external connection cable; and (C) connecting the external connection cable to the telephone socket body. (D) first forming each integrally formed by press molding
Providing a metal case and a second metal case; (E ) forming a wire hole for passing the external connection cable in the first metal case during the press molding ; and (F ) providing the second metal case. in metal case, of the telephone socket body
A step of shape <br/> formed an opening for the passage of connection aperture side when the press molding, the steps of enclosing substantially no gap at (G) the telephone socket body the first and second metal casing A method for manufacturing a telephone socket with a metal case, comprising: 2. The method according to claim 1, further comprising : (H) manufacturing a metal front case by press molding; and (I) surrounding the connection opening of the telephone socket body with the metal front case. a step of coating was exposed Oite to (J) one end of the external connection cable
Turning over a metal net to cover the end of the external connection cable ; (K) fitting a metal sleeve around the metal net; and (L) connecting the metal sleeve to the wire hole portion. (M) making the connection opening side of the telephone socket body, to which the metal front case is attached, extend through the opening of the second metal case to the outside, and the second metal case And (N) placing the first metal case over a terminal set of the telephone socket body and fixing the first metal case to the telephone socket body. 2. A method for manufacturing the telephone socket with a metal case according to 1. 3. A telephone socket main body, a terminal set provided in the telephone socket main body, and a first socket surrounding the telephone socket main body substantially without gaps.
And a second metal case, and a circuit board connected to the terminal set. Each of the first and second metal cases is press-formed so that there is substantially no gap to prevent electromagnetic interference. The first metal case is formed integrally with the first metal case, and a wire through hole for passing an external connection cable having a grounding jacket extending around the signal transmission line is provided. A telephone socket with a metal case, wherein an opening is provided for extending a connection opening side of the telephone socket body provided with a metal front case to the outside of the second metal case. 4. The telephone socket with a metal case according to claim 3, wherein the telephone socket main body allows a telephone plug to be inserted, and the terminal set is connectable to an external connection cable. . 5. The external connection cable has a metal net exposed at one end, and a metal sleeve for fitting in close contact with the wire hole portion is fitted to the metal net portion. The telephone socket with a metal case according to claim 3 or 4, wherein a hook is provided on the sleeve, and the hook engages and fixes the metal sleeve in a slit hole of the telephone socket main body. 6. The casing according to claim 3, wherein each of the first metal case and the second metal case is formed into a box-shaped casing having one end opened by press molding. Phone socket with metal case as described in.