JPH10125381A - Contact pin-mounting method for horizontal modular jack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mount contact pins on a horizontal modular jack at low cost by forming a plurality of the first and the second grooves on the outer side of a casing having a plug coupling hole and, then bending and inserting inverted- L type contact pins in the grooves. SOLUTION: A plurality of first grooves 14 are horizontally formed on a collar part 13 projected from one side of a casing 11 having a plug coupling hole 12 at the preset vertical intervals, and second grooves 18 are formed on the other side of the casing 11 via the collar part 13, so as to correspond to and be communicated to the first grooves 14. Then, a metallic plate is punched with a press, and L-shaped contact pins are formed so as to correspond to the number and intervals of the grooves 14 and 18, with the lower ends connected to each other via a connection bar. Then, the contact pins are inserted in a second grooves 2, and the leading ends thereof are projected to a position forward of the first grooves 14. Then, the leading ends of the pins are bent along a horizontal direction and inserted into the first grooves 14. Thereafter, the leading ends are respectively bent back slanted and the contact pins are thereby exposed in the coupling hole 12. The connection bar is then cut.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of mounting contact pins in a horizontal modular jack, and more particularly to a method of mounting contact pins in a horizontal modular jack which reduces costs.

[0002]

2. Description of the Related Art A method of mounting contact pins in a conventional horizontal modular jack will be described with reference to FIGS. The horizontal modular jack 1 is formed so that a fitting hole 3 is formed in a casing 2 and a plug 4 can be detached from the fitting hole 3. Opened L-shaped grooves 5 are formed on the side of the fitting hole 3 on the front surface of the casing 2 and on the inner surface of the fitting hole 3, and contact pins 6 are formed in the grooves 5. , 6 ... are inserted for guidance.

Further, the tips of the contact pins 6, 6,... Are obliquely provided from the grooves 5, 5,. The plug 4 is fitted into the fitting hole 3 so that the terminals 7, 7,... Of the plug 4 can be connected to the contact pins 6, 6,.

The contact pins 6, 6,... Protrude from the bottom surface 2a of the casing 2, and the contact pins 6, 6,.
Is soldered to electrodes on a substrate (not shown).
The contact pins 6, 6,... Are guided into the inside of the casing 2 by grooves 8, 8, which open the rear of the casing 2 from below, and the contact pins 6, 6,. Is bent forward (in the direction of arrow a).

[0005] The contact pins 6, 6, ... are inserted into the ends of the grooves 5, 5, ... through insertion holes (not shown) of the casing 2. The contact pins 6, 6,... Are bent leftward (in the direction of arrow b) at the front of the casing 2 while being guided by the grooves 5, 5,. The contact pins 6, 6,... are exposed in the fitting holes 3 as described above. On both sides of the bottom portion 2a of the casing 2, locking portions 9, 9... Protrude, and the locking portions 9, 9,.

[0006]

In the conventional horizontal modular jack 1 described above, the contact pins 6 have a vertical direction (bending direction indicated by x in FIG. 8) and a horizontal direction (bending direction indicated by y in FIG. 8). To be bent, the contact pin 6 is formed of a round pin (wire) that can be bent in both directions.
However, since the round pin is expensive, it increases the cost of the horizontal modular jack.

[0007] Therefore, there arises a technical problem to be solved in order to reduce the cost of the horizontal modular jack, and an object of the present invention is to solve the problem.

[0008]

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above object, and a horizontal modular jack 10 has a flange 13 protruding from a side of a plug insertion hole 12. A plurality of first grooves 14, 14... Are provided at predetermined intervals vertically in the horizontal direction on the front surface of the flange portion 13. One side of each of the first grooves 14, 14. The first groove 14, 1 is opened to the insertion hole 12 side.
.. Correspond to the first grooves 14, and are provided on one side surface of the casing 11 in horizontal directions with the flange 13 therebetween. Projecting walls 2 communicating with each other and forming the second grooves 18, 18,...
Are formed in order from the upper part to the lower part, while the first grooves 14, 14,.
Contact pins 15 provided corresponding to 8, 18,.
15 are the first grooves 14, 14 and the second groove 1.
The metal plates 22 are formed in an inverted L-shape by press punching at a distance from each other in accordance with the number of 8, 18,... With the pins 15, 15,... Connected, the respective horizontal portions are inserted into the corresponding second grooves 18, 18,.
Further, the contact pins 15, 15,.
Are press-fitted until the rear end portions of the protruding walls 20, 20, which form the 8, 18,... Come into contact with the corners of the respective contact pins 15, 15,. Further, it is bent in the horizontal direction along the first grooves 14, 14,... And guided to the insertion holes 12, respectively, and the tip portions of the contact pins are again bent obliquely rearward, respectively. Each of the contact pins 15, 15... Is exposed and fixed in the insertion hole 12, and the lower end of the contact pin is cut to a predetermined length in the vicinity of the connection bar to form a contact pin in a horizontal modular jack. It provides a mounting method.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. In the figure, 10 is a horizontal modular jack, 11 is a casing of the horizontal modular jack, 12 is this fitting hole, and the fitting hole 12
The plug (not shown) is configured to be detachable. On one side of the casing 11, first grooves 14, 14,... Having an L-shape in a plan view with the front surface of the flange portion 13 of the casing 11 and the inner surface of the fitting hole 12 opened are formed.

As shown in FIGS. 1 and 2, the first groove 1
One of the contact pins 15, 15,... Is guided in the inside of the first groove 14, and the tip is obliquely exposed from the first groove 14, and is exposed in the fitting hole 12. The contact pins 15, 15,... Have slide guides 17, 17 formed by cutting the rear wall 16 of the casing 11.
The contact pin 1 is guided by
Are prevented from contacting each other. Then, a plug is fitted into the insertion hole 12, and the terminals of the plug and the contact pins 15, 15 of the horizontal modular jack 10 are inserted.
And so on.

As shown in FIGS. 1 and 3, a second groove is formed on one side of the casing 11 in a horizontal direction with a flange 13 at a height corresponding to the first grooves 14, 14,. 18,
18 are formed. The second grooves 18, 18 are opened rearward and side surfaces, and the respective insertion holes 19, 19,... Formed in the flange portion 13 are connected to the opposing first grooves 14, 14,. ing. Furthermore, the protruding walls 20, 20... Forming the second grooves 18, 18,... Are longest downward, the longest is the shortest, and the middle one is the shortest from the top. Each of the second grooves 18, 18... Is stepped so as to become shorter in the downward direction. And the second
The contact pins 15, 15,... Are fixed in the grooves 18, 18,... So that the lower ends of the respective contact pins 15, 15,.

As shown in FIG. 1 and FIG. 2, the lower ends of the contact pins 15, 15... As shown in FIGS. 2 and 4, a lock pin 21 is mounted on one side of the back surface of the casing 11, and the lock pin 21 and the contact pins 15, 15,.
Is engaged with a hole or the like of a board (not shown) to attach the horizontal modular jack 10 to the board.

[0013] In order to fix one side of the horizontal modular jack 10 with the contact pins 15, 15 ..., the lock pin 21 is attached to only one other side of the contact pin 15, 15 ... so that the horizontal modular jack 10 can be fixed. Can be fixed to the substrate. Therefore, it is possible to reduce the number of parts and cost, and to promote the downsizing of the horizontal modular jack 10. The lower ends of the contact pins 15, 15,... Are soldered to electrodes on the substrate.

On the other hand, the contact pins 15, 15,...
As shown in FIG. 5, the metal plates 22 are formed by press punching a metal plate 22, and are connected by connecting bars 23. The contact pins 15, 15,... Are formed in advance by bending in an inverted L-shape. And the contact pin 1
When the contact pins 15, 15... (Four in the illustrated example) are connected, the second grooves of the casing 11 shown in FIGS. , 18 and the insertion holes 19, 19,. The contact pins 15, 15,... Have rear ends of the projecting walls 20, 20,.
Are pressed into contact with the corners of the first groove 14, 14
… Projects more forward.

As shown in FIGS. 1 and 6, since the contact pins 15, 15,... Are bent in an L-shape, they rise upward from the lower end (the direction of arrow a in FIG. 6).
On the other hand, it is bent in a substantially perpendicular direction (the bending angle direction x of the contact pin 15 in FIG. 6) and extends forward (in the direction of arrow b). Further, the contact pins 15, 15 are bent in the horizontal direction (the bending angle direction y of the contact pin 15 in FIG. 6) along the first grooves 14, 14,.
(In the direction of arrow c in FIG. 6).

The contact pins 15, 15,... Are bent further in the horizontal direction (the bending angle direction y of the contact pin 15 in FIG. 6) near the inner side surface of the fitting hole 12 to be inclined rearward (FIG.
It is inclined in the direction of the middle arrow d) and is exposed in the fitting hole 12. .. Are welded to the corners of the contact pins 15, 15... On the rear ends of the projecting walls 20, 20,.
Are kinked as described above, and the lower ends are cut to a predetermined length.

Since the contact pins 15, 15,... Are bent in the vertical direction in advance, if they are bent only in the horizontal direction, the contact pins 15 of the horizontal modular jack 10 can be bent.
In a predetermined shape. The contact pins 15, 1
5 are formed by pressing a metal plate, so that they can be easily bent in the horizontal direction (the bending angle direction y of the contact pin 15 in FIG. 6). Furthermore, contact pin 1
Since a plurality of 5, 15,... Are simultaneously attached to the casing 11, the assembling work is significantly simplified, and the productivity can be improved.

[0018]

According to the present invention, a metal plate is formed in an L-shape by press-punching at a distance from each other according to the number of the first and second grooves provided in the horizontal modular jack and the distance between the grooves. The respective horizontal portions of the contact pins whose lower ends are connected by the connecting bar are respectively corresponding to the second portions.
Insert from the end of the groove. Each of the contact pins is press-fitted to the angle of each contact pin whose rear end of the protruding wall forming the second groove is bent in an inverted L-shape until the contact pin is in contact with the contact pin. It is made to protrude respectively. Therefore,
The protruding portions are each bent in the horizontal direction along the first groove and guided to the insertion hole side, and the distal end portions of the respective contact pins are again bent rearward on the insertion hole side, respectively. The contact pin is exposed in the insertion hole, and cut to a predetermined length from the vicinity of the connection bar to form a horizontal modular jack.

Thus, the contact pins can be mounted on the horizontal modular jack by bending only in the horizontal direction, and are formed of a metal plate without the need for expensive round pins as in the prior art. Inexpensive contact pins can be used, so that the cost of the horizontal modular jack can be reduced, and the work of mounting the contact pins can be simplified, contributing to an improvement in productivity.

[Brief description of the drawings]

FIG. 1 is a perspective view of a horizontal modular jack.

FIG. 2 is a front view of a horizontal modular jack.

FIG. 3 is a side view of a horizontal modular jack.

FIG. 4 is a rear view of the horizontal modular jack.

FIG. 5 is a plan view of a contact pin formed by press punching a metal plate.

FIG. 6 is a perspective view of a contact pin.

FIG. 7 is a perspective view of a conventional horizontal modular jack and plug.

FIG. 8 is a perspective view of a conventional contact pin.

[Explanation of symbols]

 Reference Signs List 10 horizontal modular jack 11 casing 15 contact pin 22 metal plate

Claims (1)

[Claims] 1. A horizontal modular jack 10 has a flange 13 protruding from a side of a plug insertion hole 12, and a plurality of first grooves 14, 14... The first groove 14 is provided at predetermined intervals in the upper and lower directions.
14 are open to the fitting holes 12 respectively, and the other sides of the first grooves 14, 14.
. Are provided on one side surface of the casing 11 corresponding to the grooves 14, 14,. Groove 1
Are formed in order from the top to the bottom, and are formed so as to be shorter. On the other hand, the protruding walls 20 correspond to the first grooves 14, 14 and the second grooves 18, 18,. Are separated from each other according to the number of the first grooves 14, 14 and the second grooves 18, 18 and the intervals between the grooves. Formed in an inverted L-shape by press punching, the lower ends of which are connected by connecting bars, and the contact pins 15, 15,.
Are connected to each other, and
Of the contact pins 1
The rear ends of the projecting walls 20, 20 forming the second grooves 18, 18 are respectively formed with the respective contact pins 15, 1.
5 until they come into contact with the corners of the first groove 14,
14 project more forward, and furthermore, the first grooves 14, 1
4 are bent in the horizontal direction along the guide holes 4 and guided toward the insertion holes 12, respectively. A contact pin mounting method for a horizontal modular jack, which is exposed and fixed in the hole 12 and the lower end of the contact pin is cut to a predetermined length near the connection bar.