JPH012280A - Manufacturing method of jack body of modular connector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a method for manufacturing a glossy main body of a mozier type connector disposed inside the female side of the monolayer type connector used for connecting telephone lines and signal lines. It is related to.

BACKGROUND ART 1 Generally, in a modular shack on the # side of a mozier type connector, a glossy main body is provided with a contact spring that comes into contact with a contact of a mononilar plug on the male side. Conventional jack bodies have various shapes as shown in Fig. 14, but in all of them, the contact spring 11' is inserted into the insertion hole formed in the housing 10, or the contact spring 11' is inserted into the insertion hole formed in the housing 10, or the contact spring 11' is inserted into the insertion hole formed in the housing 10, or as shown in Fig. 14 (d). The housing is divided into two members 10a,
10b, and contact spring 11 with both members 10a and 10b.
It had a structure that fixed the . In such a structure, it is necessary to insert the contact spring into the housing, but it is not easy to insert the wire that becomes the contact spring into the insertion hole, so it takes time to assemble the contact spring. There was a problem in that the holding force to hold it was insufficient and it easily rattled.

On the other hand, one monoera type connector of this type is sometimes used for multiple lines, and there are products with jack bodies with contact springs in 4-bin and 6-bin configurations in addition to 2 pins, but there are many types. No rational manufacturing method has been established to deal with this problem.

[Objective of the Invention 1 The present invention has been made in view of the above-mentioned points, and its object is to provide a mono-element system that enables automatic assembly and allows the same production line to be used for a wide variety of products. Provides a manufacturing method for the jack body of the type connector, which consists in nailing.

[Disclosure of the Invention 1 (Example) Figures 1 to 4 show the basic processing steps of the present invention. First, in the first step shown in Figure 1, a conductive thin metal plate is punched. (In this process, the strip-shaped metal plate wound on a roll is punched while being fed in one direction. After processing, it is wound up again and sent to the next process. In this process, the contact spring 11 and the terminal piece 12 are integrally continuous with each other via the connecting piece 13, and the circumference of these members is integrally continuous with the frame 21, forming the hoop material 20. A plurality of contact springs 11 are provided, each having a linear shape,
The contact springs 11 are formed parallel to each other and spaced apart from each other within the plane of the metal plate, and are integrally connected to each other at substantially the center in the longitudinal direction by a relay piece 22 that is perpendicular to the longitudinal direction of the contact spring 11 . This relay piece 22 reinforces the contact spring 11 so that it will not be subjected to extraction stress during processing or deformed in subsequent processes. Further, the tip of the contact spring 11 is continuous with the frame 21.

An elongated hole 23 that is perpendicular to the longitudinal direction of the contact spring 11 is formed in the frame 21 at a portion close to the tip of the contact spring 11 . The Il piece 12 has a pressure welding slit 16 facing the tip edge.
, and the side m (upper and lower edges in FIG. 1) is located at the frame 21.
It has a continuous shape. Each contact spring 11 and each terminal piece 12 are integrally connected via a bridging piece 13 in a one-to-one correspondence with each other.
With 2? 1! The electrical connection is made via a bridge piece 13. Therefore, the contact spring 11 and the terminal piece 12 are connected to the frame 21 by the tip of the contact spring 11 and the side edge of the terminal piece 12.
It will be held in

In this process, the contact spring 11 is first formed into six pieces, and then, if necessary, the part between the relay piece 22 and the frame 23 is removed as shown by the broken line in the left half of FIG. In other words, in the case of a 2-core or 4-core configuration, this portion can be cut out with a punch. Adjustments to the number of cores can be easily made because only the punch needs to be replaced. With this configuration, the post-process can be the same regardless of the number of cores.

In the second step shown in FIG. 2, plating is performed while feeding the hoop material 20 formed in the previous step in one direction. In this process, first, the entire contact spring 11 is plated with nickel, and then only the required portions of the contact spring 11 are plated with gold.The gold plated portion is the shaded area in FIG. Gold plating is applied to a portion extending from the vicinity of the piece 22 across the relay piece 22 to the tip (upper part in FIG. 2) of the contact spring 11. This part will be replaced later by the contact spring 11.
This will be the exposed part of the When plating, if the necessary jigs and equipment are adjusted for 6-core plating, it can also be used for 2-core or 4-core plating, so the exact same line can be used regardless of the product type. After the plating process, the hoop material 20 is wound up again and transported to the next process.

In the third step, as shown in FIG.
This is a process in which synthetic resin is simultaneously molded. In this step, the entire bridging piece 13 from the base of the contact spring 11 to the base of the terminal piece 12 is covered with synthetic*4m to form the base 14, and a portion of the base of the contact spring 11 is covered with synthetic resin. A support body 15 is formed. That is, the hoop material 20
In this way, two members made of synthetic resin are integrally formed.

As shown in FIG. 6, the base 14 is formed in a substantially U-shape in a plane parallel to the hoop material 20, and has a protruding base protruding in a direction perpendicular to the hoop material 20 at one place on the center piece. 14m
The protrusion 14a has a substantially U-shaped cross section in a plane parallel to the hoop material 20, similar to the base 14, and inner crocodile pieces 14b are formed on both edges of the opening.
is formed. The inner crocodile piece 14b is formed substantially over the entire length of the protruding base 14a in the protruding direction. As shown in FIG. 6(a), inside the protrusion 14a, a pair of left and right inclined surfaces 14c are formed which are inclined so as to gradually move away from the hoop material 20 toward the back from the opening edge of the protrusion 14a. Further, as shown in FIG. 6(b), the tip of the protrusion 14a is formed with an inclined surface 14d which is formed to narrow the left and right width of the protrusion 14m. acts as a guide surface that facilitates the introduction of the middle frame 5 when installing the middle frame 5, which will be described later. Furthermore, both leg pieces of the base 14 are provided with notches 15 on the opposite side to the protruding surface of the protruding base 14m.
e is formed and is used for fixing the middle frame 5 as described later. On the other hand, the support body 15 has an id rib 15m protruding from both left and right edges running along the hoop material 20, and one end of the id rib 15a on the protrusion 14a side protrudes in the same direction as the protrusion 14a. A supporting support, α projection 15b, is provided in a protruding manner. An inclined surface 15c is formed on one surface of the support 15 on the side of the protrusion 14a, and the slope 15c gradually increases the distance from the protrusion 14m as the distance from the hoop material 20 increases. An engaging protrusion 15d is provided protruding from one part of the edge. As will be described later, this engaging projection 15d can be engaged with the inner crocodile piece 14b. The inclined surfaces 14c and 15c are each formed to be inclined at approximately 45 degrees with respect to the hoop material 20, and are provided at positions where they can come into contact with each other, as will be described later. Support 1
5 has a guide groove 15e formed in parallel with the contact spring 11, which serves as a guide when bending the contact spring 11, on the surface opposite to the protrusion 14a. has a relatively simple shape, and since it is simultaneously molded on the hoop material 20, there is no need to use a slide core in the mold during molding. Since the base 14 and the support body 15 have exactly the same shape regardless of the type, the same line can be used. Also, since the cutout part should be compatible with 6 cores, 2
No need for molds for cores or 4-cores. After being simultaneously molded in this way, it is wound up again.

In the fourth step, as shown in FIG. 4, it takes 4f to cut out the parts made in several steps from the frame 21 and form the single 7-yeck main body 1, but it is quite complicated, so This will be explained in more detail using FIG. 5. The numbers Φ to ■ in FIG. 5 indicate each processing stage, and where necessary, side views and front views are added below the plan view of the line. First, as a first step, the synthetic resin molded product is inspected for defects. here,
The base 14 and support 15 are inspected to see if there are any sink marks or scratches, and if they are determined to be defective,
As shown by the two-dot chain line, the contact spring 11 and the terminal piece 1
2 and 2 from the frame 21. In step (3), a part of the relay piece 22 that connects the six contact springs 11 is punched out, and the contact springs 11 and 2 are cut out from the frame 21.
Each book is separated into a connected state, and further, in step (2), the remaining relay pieces 22 are punched out to make the contact springs 11 independent. Further, in step (2), the tip end of the contact spring 11 is separated from the frame 21 at the elongated hole 23, as shown by the two-dot chain line. Here, the reason why the contact spring 11 is divided into two parts is that the direction of action of the extraction stress in the first punching and the second punching is reversed.
This is to prevent the contact spring 11 from deforming. In addition, in the case of 2-core products, step ① is not necessary, but there is no problem even if this step is included, so 2-core, 4-core, 6-core
It can be used with any type of core.

Next, in step (2), the contact spring 11 is bent along the surface of the support 15 in a direction perpendicular to the frame 21 (see the side view shown below step (2)).
), the contact springs 11 that have already been cut are also bent, but since they are along the surface of the support 15, they do not get in the way. Next, in step (II), the portion between the base 14 and the support 15 is removed! i-tangle 1
3, and as shown in 7th 1, the support body 15 is about 4
During preliminary bending, raise the material 5 degrees and perform preliminary bending.
As shown in FIG. 6(e), the bending punch 17 is brought into contact with the exposed part of the cotton strip 13 between the base plate 14 and the support body 15, and the inclined surface 15C formed on the support body 15 is bent. The support body 15 is raised to a position where it contacts the punch. From this state, the support body 15 is further pushed toward the protruding base 14a in step (2), and as shown in FIG.
4b. In this way, the support body 15 is held on the protrusion 14a. Here, since the fulcrum protrusion 15b serves as a rotation fulcrum for the support body 15, the support body 15 can be partially pressed against the protrusion 14b, and the support body 15 can be fixed without rattling. In addition, after the support body 15 is connected to the protrusion 14b in a manner greater than or equal to 0 in which the bridging piece 13 is prevented from being bent more than necessary due to the contact between the inclined surfaces 14 and 100, in step (2) , the contact spring 11 is inserted into the guide groove 15e.
While bending the terminal piece 12 along the hoop material 20
It is bent to the opposite side of the protrusion 14b in a direction perpendicular to the protrusion 14b. After that, in step ■, one side of the left and right (7-b material 2
0), as shown by two points NM, a part of the frame 21 is removed so that only the left and right pair of terminal pieces 12 are connected to the frame 21, and then the terminal pieces 12 are connected to the frame 21. The gloss main body 1 is taken out by cutting it from the frame 21. The remaining frame 21 is cut as a scrap along the two-dot chain line in step (3).

In the manner described above, it is possible to automate the manufacture of the jack body 1 having the shape shown in FIG. This makes the assembly work easier. In addition, since it is formed by punching out sheet metal and simultaneously molding synthetic resin on it, it is not possible to align the contact springs in a predetermined position, unlike when contact springs that are separate from each other are simultaneously molded with synthetic resin. There is no need to keep it in place, only relatively easy processing steps such as punching and simultaneous molding are required, and the time required for each process is shortened, so productivity is significantly improved.

Next, a telephone modular using this jack body 1
Take Jack as an example.

As shown in FIGS. 9 to 11, the telephone monophonic jack includes a casing 3 consisting of a body 30 and a cover 40, a jack body 1, an inner frame 5, a door block 6, and a terminal block housed within the casing. 7 Toyo I)
It is configured.

The casing 3 is made of an insulating material such as synthetic resin, and has a diameter of M 3 M so that it can be attached to a standardized ready-made mounting frame that is attached to the embedded box.

The mounting dimensions are set to be the same as a single module Monoale. The body 30 is open at the top, and outer flange pieces 31 extend from the left and right edges of the opening, and retaining holes 32 are formed at the tips of the outer flange pieces 31, respectively, passing vertically through the body 30. On the other hand, outer flange pieces 42 are extended at both left and right ends of the cover 40, facing the outer flange pieces 31 of the body 30, respectively.
At the tip of each outer flange piece 42, there are 7 hooks 43 at the lower end.
An engaging piece 44 having a
The body 30 and the cover 40 are coupled by engaging the 4-7 hooks 43 with the engagement holes 32. The engagement piece 44 is provided with a temporary engagement protrusion 45 that protrudes below the seven hooks 43. When the cover 40 is placed on the body 30, the temporary engagement protrusion 45 is inserted into the engagement hole 32. By inserting a 40 is prevented from shifting or tilting relative to the body 30. With this configuration, the coupling of the cover 40 to the supply head body 30 can be automated, leading to improved productivity.

The interior of the body 30 is partitioned by partition tabs 33, thereby forming six terminal storage chambers 35 each large enough to accommodate one terminal block 7.

Recesses 33a are formed on the upper surface of the partition plate 33 at positions corresponding to the respective terminal storage chambers 35. A groove 37 is formed on the lower surface of the body 30, and at the center of the bottom surface of the groove 37,
The lower end has hook portions 38 that protrude to the left and right, respectively.
I! M holding ribs 39 are provided in a protruding manner.

A plug insertion opening 41 is opened in the center of the top surface of the cover 40 . A pair of coupling claws 46 is provided protruding from the tip edges of the left and right outer flange pieces 42 of the cover 40, and a coupling hole 47 is formed at the base of the outer flange piece 42 at a position corresponding to between the two coupling claws 46. has been done. A pair of left and right pressing lips 48 projecting from the lower surface of the cover 40 are provided on the lower surface of the cover 40 . Furthermore, a pair of left and right id drips 49 are provided protruding from the lower surface of the opening periphery of the plug insertion port 41 . Each Idrip 49
At the lower ends of the door blocks 6 protrude toward each other.
A retaining lip 49a for retaining is provided in a protruding manner.

As shown in FIG. 8, the jack body 1 includes a plurality of contact springs 11 and a terminal piece 12 integrally continuous with each contact spring 11. The contact spring 11 is a protrusion 14a
It protrudes from the upper surface and is bent downward, allowing it to bend in the front-rear direction. Further, the terminal pieces 12 each protrude from the outer surface of each leg piece of the base 14, and the tip portions are bent downward to form an abbreviated shape. A press-contact slit 16 is formed at the lower end of each terminal piece 12 and opens toward the lower edge. Further, on both side edges of the terminal piece 12, when press-fitting into the recess 33a formed in the partition plate 33 of the body 30, there are press-welding slits 1 from the peripheral wall of the recess 33m.
The protrusion 1 is pressed so that a pressing force is applied in the direction of narrowing the width of the protrusion 1.
8 is formed.

There is a middle frame 5 in the part corresponding to the protruding base 14a of the glossy main body 1.
is fitted. The middle frame 5 has a vertically penetrating id hole 51 for guiding the plug, and comb teeth 55 are formed in the id hole 51 to separate the contact springs 11 so that they do not come into contact with each other. In addition, the glossy body 1 is attached to the bottom surface of the middle frame 5.
An engaging leg 52 is provided protrudingly to be inserted between both legs of the middle frame 5.
A pair of protrusions 53 are formed on both left and right side surfaces of.

Further, a retaining protrusion 54 is provided on the side surface of the engaging leg 52, and by fitting into a notch 14e formed in the base 14 of the glossy body 1, the glossy body 1 and the middle frame 54 are connected to each other.
This ensures that the position is fixed securely. Furthermore, a fitting groove 54 is formed in the middle frame 5 at a position different from the side hole 51, into which a part of the protrusion 14a of the jack body 1 is inserted.

In the fitting groove 54, an id drip 15m provided on the support body 15 is fitted together with the protrusion 14m, and the protrusion 14
The bonded state between a and the support body 15 is also maintained by the middle frame 5. :) When attaching the inner frame 5 to the Yack main body 1, the inclined surface 14d formed on the protrusion 14a is
It acts as a guide, making the installation process easier. Therefore, automatic assembly is facilitated.

The terminal block 7 consists of a terminal frame 71 made of conductive material and formed in a substantially U-shape that opens downward, and a locking spring 72 that is inserted into the terminal frame 71. A slit 73 is formed in one leg piece, and a locking piece 74 is formed by cutting and raising the center part of the other leg piece. Further, a pressure contact piece 75 is extended from the center piece of the terminal frame 71, and a lock spring 72 is formed by bending an elastic metal plate to form the lock piece 75.
6a+761+,? 7a,? 7b. When the lock spring 72 is installed in the RA child frame 71, the lock spring 72 engages with the locking piece 74 and locks the terminal frame 7.
1 and is kept as a block. Here, the telephone wire generally has a wire diameter of 0.4 to 0°65IIIl.
The contact pressure between the locking pieces 76b, 77b and the terminal frame 71 is set so that the telephone line can be inserted at the time of connection, and the contact pressure between the locking pieces 76b and 77b and the terminal frame 71 is ensured so as to ensure the contact pressure for the even thinner telephone line.
Must be set. In order to satisfy this condition, the base piece in the lock spring 72 and the lock piece 76b, ? The distance between the tip of the terminal frame 7b and the terminal frame 7b is set to be equal to the distance between the legs of the terminal frame 71. Since the terminal frame 71 and the lock spring 72 are made into a block, the lock spring 72 will not be deformed when the terminal block 7 is assembled into the body 30, and the quality can be stabilized to meet the above conditions. In addition, the terminal blocks 7 are stored in each terminal storage chamber 35 of the body 30 as needed, and there are two terminal blocks 7 for 2-core terminals, 4 terminal blocks 7 for 4-core terminal blocks, and 6 terminal blocks 7 for 4-core terminal blocks 7. In the case of a core, six terminal blocks 7 are each mounted.

A door block 6 is attached to a portion corresponding to the plug insertion port 41 in order to prevent dirt and the like from entering the casing 3 from the plug insertion port 41 when no plug is inserted. The door block 6 has an upper door body 61 and a lower door body 62
The upper door body 61 closes half of the plug insertion L 41, and the lower door body 62 closes the plug insertion L.
The remaining half of 141 is now closed. An operating piece 63 is provided protruding from the lower door body 62. The protruding dimension of the operation piece 63 is set to such an extent that it protrudes slightly from the front surface of the cover 40. The door block 6 is mounted between the upper surface of the middle frame 5 and the lower surface of the opening periphery of the plug insertion opening 41 of the cover 40. That is, the door block 6 is mounted between a pair of id lips 49 protruding from the back surface of the cover 40, and is locked by a holding lip 491 to prevent it from falling off. The holding lip 49a is formed in a part of the longitudinal direction of the lid lip 49, and when attaching the door block 6 to the cover 40, it holds the upper door body 61 and the lower door body 62 in an overlapping state. If the lip 49m is not formed and the door block 6 is attached to the cover 40, and then the door block 6 is slid toward the holding lip 49a, the door block 6 is held by the cover 40. . Therefore, even if the cover 40 is attached to the body 30 from above in this state, the door block 6 will not fall off, making the assembly process easier and particularly suitable for automation of assembly. 1 or more, when inserting the plug into the plug insertion port 41, insert the plug into the operating piece 63.
The door block 6 can be moved upward by pressing the operating piece 63 while the door block 6 is brought into contact with the plug.On the other hand, if the plug is removed from the plug insertion port 41, the door block 6 will fall downward under its own weight, and the plug insertion port 41 will open. 11g is automatically blocked. The N block 6 may not be provided if unnecessary.

On the bottom of the body 30 are the leg pieces of the terminal frame 71 and the lock spring 72.
A pair of wire insertion lowers 7 are provided at positions corresponding to the tip ends of the locking pieces 76a and 76b, and a release piece 78 is provided adjacent to the wire insertion lowers 7. Release piece 78
The base is formed in a substantially U-shape continuous with the side wall of the body 3o, and has IR bending upward and downward. Tip i of release piece 78
The locking piece 76b comes into contact with the lower surface of the tip of the locking piece 76b, and when the release piece 78 is pushed upward from the lower side of the body 30, the locking piece 76b is bent. Further, the release piece 77 has a groove 79 formed in a portion exposed on the lower surface of the body 30 into which a jig such as the tip of a driver can be inserted. However, when connecting a telephone line, if the telephone line is inserted into the wire insertion lower 7, the telephone line is held between the lock pieces 76m, 76b and the leg pieces of the terminal frame 71, and when the telephone line is removed, By inserting a jig into the groove 79 and pressing the release piece 78 inward of the body 30, the lock bone 72 can be bent away from the leg piece of the terminal frame 71, and the telephone line can be easily removed. be.

The cable binding the connected telephone wires is passed through the space between the peripheral wall of the groove 37 and the wire holding lip 39.
It is adapted to be held by a hook portion 38. As a result, tension on the cable 8 can be secured without using any separate parts. In FIG. 11, the size of a conventional monoplane jack is shown by a two-chain line, and compared to this, the structure of the present invention is much smaller.

In the above-described embodiment, the terminal piece 12 of the jack body 1 is a press-contact terminal, but as shown in FIG. 12, it may have another shape. 112 (a) and (b) show the shape when the jack body 1 is directly attached to the printed circuit board, and! #12 (c) is for soldering, Figure 12 (d)
12(e) is a shape that can be screwed into a terminal screw, and FIG. 12(f) is a shape for an amplifier terminal.

In addition, in the above embodiment, the protrusion 14m was provided protruding in the direction perpendicular to the hoop material 20, but as shown in FIG. In this case, the inner frame 5 is of course attached from the lateral direction.

[Effect of the Invention 1] As described above, the present invention has a shape in which a plurality of contact springs are connected to each other via a relay piece, and each contact spring is connected to a plurality of terminal pieces via a bridge piece. The member is formed by punching a conductive sheet metal into a hoop material that combines the tip of the contact spring and a part of the terminal piece on the frame that surrounds the member, and plating the required parts of the contact spring. a synthetic resin base that exposes the terminal piece and covers almost the entire bridging piece, and a synthetic resin support that is separated from the base and exposes a part of the bridging piece between the base and the base. a step of removing the relay piece and separating each contact spring from each other, a step of cutting off the tip of the contact spring from the frame, and an exposed portion of the bridging piece between the base and the support body. The process consists of a process of bending the contact spring and the terminal piece to join the base and the support body, and a process of cutting the terminal piece from the frame after bending the contact spring and the terminal piece into a predetermined shape. By integrally forming the contact spring and terminal piece, and simultaneously molding synthetic resin into this,
Since the jack body is formed, it has the advantage that the jack body can be formed more easily than in the past. In addition, since the base and support that become the housing are molded on the contact spring at the same time, it is possible to securely hold the contact spring, improving quality.Since they are molded simultaneously, the number of parts can be reduced and assembly This makes it easier. Furthermore, when forming the jack body, the base and support are formed separately and then joined together, so the shape when molded simultaneously is relatively simple, and the mold shape This has the advantage of simplifying the process.

[Brief explanation of the drawing]

1 to 4 are process diagrams showing an embodiment of the present invention,
Figure 5 is a more specific process diagram of Figure 4, Figure 6 (a)
-(e) are a plan view, a partially cutaway front view, and a cross-sectional view taken along the line X-X in FIG.
Figure 7 is a cross-sectional view at the #5 figure ■ stage, fjS8 figure (a
) to (d) are a plan view, a front view, a sectional view taken along Y-Y line in FIG.
Figures 11 to 11 are an exploded perspective view, a partially cutaway front view, a partially cutaway front view, and the 12th
Figures (a) to <f) are perspective views of essential parts showing various shapes of terminal pieces used in the above jack body, respectively. 1
FIGS. 4(a) to 4(d) are sectional views showing conventional examples, respectively. 1 is the jack body, 11 is the contact spring, 12 is the terminal piece, 1
3 is a bridge piece, 14 is a base, 15 is a support body, 20 is a hoop material, 21 is a frame, and 22 is a relay piece. Agent Patent attorney Ishi 1) Ai 71... Tsuyatsuku body
Fig. 1 (b) (b) Fig. 3 (G) (b) (b) Fig. 6 (b) Fig. 7 (b) Snow to c5+ ○ Fig. 12 (e) (f)

Claims (1)

[Claims] (1) A member in which a plurality of contact springs are connected to each other via a relay piece, and each contact spring is connected to a plurality of terminal pieces via a bridge piece is attached to a frame surrounding the member. There is a process of punching out a conductive sheet metal to form a hoop material that combines the tip of the contact spring and a part of the terminal piece, a process of plating the required parts of the contact spring, and a process of exposing the terminal piece and forming the bridge. A step of simultaneously molding a synthetic resin base that covers substantially the entire bridging piece, and a synthetic resin support that is spaced from the base and exposes a part of the bridging piece between the base, and the above-mentioned relay piece. a step of separating each contact spring from each other by removing the contact springs; a step of separating the tips of the contact springs from the frame; and a step of bending the exposed portion of the bridging piece between the base and the support to separate the base and the support. A method for manufacturing a jack body of a modular connector, comprising the steps of combining the contact spring and the terminal piece, and cutting the terminal piece from the frame after bending the contact spring and the terminal piece into a predetermined shape.