JP2001244001A - Pin jack board and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pin jack board having improved contacts and their lead metal fittings for signal connection of video and audio apparatuses and the like. SOLUTION: A pin jack board comprises a plurality of pins fixed to a housing, wherein each of the pins has a contact contained within a boss which projects from the housing and is covered with a ground metal fitting, and wherein lead metal fittings of the contacts are arranged together at a predetermined position of the housing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pin jack board used for signal connection of video / audio equipment and the like, and more particularly to a pin jack board with improved contacts for signal connection and a metal fitting for the pin jack board and its manufacture. About the method.

[0002]

2. Description of the Related Art As shown in FIG. 7, a conventional pin jack board 10 with a printed board removed has a substantially rectangular outer shape and a thickness L1 up to a surface on which the printed board is disposed in a direction perpendicular to the paper surface. In a box-shaped housing 11 having a plurality of pins, a plurality of pins are provided, in this case, pins 12A to 12A.
Twenty pins up to T are arranged and distributed inside the rear surface of the housing 11.

One of the pins, for example, pin 12A
For example, the configuration is as shown in FIG. 8, and on the back surface side of the housing 11, support portions 13A and 13B protruding integrally with the flat portion 11A are provided.

On the front side of the housing 11, a cylindrical boss 16 having a small hole 15 is provided at the tip end 14 of the housing 11 so as to protrude integrally with the housing 11 with a width slightly smaller than the support portions 13A and 13B. I have.

Further, on the outer surface of the boss 16, a metal grounding metal 17 is provided so as to cover the boss 16.
It is inserted on the tip 14 of the boss 16 via an insulative ring-shaped bush 18 having the same diameter as the small hole 15 at the center. It is led straight out to the back through the inside.

On the back side of the housing 11, a connection hole 20 is formed in the center of the cylindrical boss 16 which is electrically connected to a jack (not shown) inserted through the small hole 15 inside the boss 16. On the other side, a contact 22 from which a connecting piece 21 is drawn straight out is inserted.

The connection piece 21 and the lead-out portion 19 are inserted into connection holes 24 provided on a printed circuit board 23 mounted on and supported by the support portions 13A and 13B, soldered and assembled. Can be

In the twenty pins 12A to 12T, even though the function and the structure of each pin are slightly different, the connection piece 21 and the lead-out portion 19 are straightened on the back surface of the housing 11 in each case. Is derived directly below.

[0009]

However, in the pin jack board 10 as described above, the connecting piece 21 and the draw-out portion 19 of each pin are straightly led out directly below each pin on the back surface of the housing 11. Each pin 12A-12T
Requires a certain occupied area for each housing.
The portion directly below the first flat portion 11A is a dead area for circuit routing as the printed circuit board 23, and there is a problem that a space having a predetermined thickness L1 of the pin jack board 10 cannot be effectively used.

Also, the contacts 22 of each of the pins 12A to 12T are independent one by one. Therefore, these are individually inserted into the printed circuit board, and soldered to the printed circuit board directly under each pin, and the pins 22A to 12T are individually soldered. Since the configuration is such that the jack board 10 is manufactured, there is a problem in manufacturing that it takes time and costs.

[0011]

According to the present invention, there is provided a pin jack board for solving the above-mentioned problems, in which a plurality of pins are fixed to a housing, and each pin has a boss portion projecting from the housing. A pin jack board, the periphery of which is covered with a grounding metal and the contacts are accommodated therein, wherein the metal fittings drawn from the contacts are collectively arranged at a predetermined position of the housing.

Further, the present invention provides a method for manufacturing a pin jack board for solving the above-mentioned problems, comprising: an insertion step of inserting a grounding metal through a boss portion from a front side of a housing; A press-fitting step of press-fitting a chain-like contact with a carrier into a locking hole provided in a locking step, and then separating the carrier.

[0013] As described above, the pin jack board according to the present invention has a configuration in which the metal fittings drawn from the contacts are collectively arranged at a predetermined position of the housing, so that components can be mounted between the housing and the printed board. It is possible to create a space, and it is possible to achieve multiple functions while maintaining a predetermined size.

Further, according to the manufacturing method of the present invention,
A chain-like contact with a carrier is press-fitted into the locking hole provided in the locking step, and the carrier is cut off after the press-fitting. Is simplified, and a pin jack board can be manufactured at low cost.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a pin jack board and a method for manufacturing the same according to the present invention. FIG. 1 is a perspective view schematically showing one embodiment of the present invention from the back side, and FIG. 2 is a schematic view schematically showing one embodiment of the present invention from the front side.

The housing 31 of the pin jack board 30 is
It consists of a flat portion 31A and side portions 31B to 31E, which generally form a substantially rectangular box shape.
As shown in FIG. 2, a total of six pin rows 3 such as a pin row 32 into which three pins 32A to 32C are integrally inserted are provided near the side face part 31B side of the flat part 31A.
2 to 37 are provided.

When viewed from the front surface side of the housing 31, these pin rows 32 to 37 are, as shown in FIG.
1A, and are integrally formed and, when viewed from the back side, as shown in FIG.
Locking steps 38 to 43 corresponding to the steps 37 to 37 are formed.

Further, the side portion 3 opposing the side portion 31B side.
The 1D side flat portion 31A protrudes integrally with the flat portion 31A along the inside of the side surface portion 31D, and has pins 32A to 3A.
Five pins 44 to 48 of a type different from 2C or the like are provided.

The side face portion 31B is provided with each of the metal fittings 32A (1), 32B (1) drawn out from the contact 32A (0), 32B (0), 32C (0),. , 32
C (1),..., And lead-out portions 49 (1) to 54 (1) drawn out from the common grounding hardware 49 to 54 to the outer surface side of the side surface portion 31B for each of the pin rows 32 to 37 collectively. And are arranged as a predetermined position.

A locking hook 5 for fixing the housing 31 to a printed circuit board (not shown) is provided on the side surface 31D side.
5 and 56 are formed integrally with the side surface portion 31D, and a circular contact portion 57 that contacts the printed circuit board is formed near the center of the side surface portion 31D.

Further, the side surface portion 31C and 3
On the 1E side, positioning poles 58 and 59 for fixing the housing 31 at predetermined positions on the printed circuit board, respectively.
However, locking hooks 60 and 61 for fixing the housing 31 to the printed circuit board are formed integrally with the side portions 31C and 31E, respectively.

The peripheral surfaces (upper surfaces in FIG. 1) of the side surfaces 31B to 31E of the housing 31 are mounting surfaces for mounting on a printed circuit board (not shown).
The end faces of B are contacts 32A (0), 32B (0), 32C
(0),... Withdrawal fittings 32A (1), 32B (1), 32
C (1),..., Drawing part 4 from earthing metal fittings 49 to 54
9 (1) to 54 (1) are collectively soldered to the printed circuit board as predetermined positions.

Since all the pin configurations are almost the same,
For example, of the pin array 32 composed of the pins 32A, 32B, and 32C, the pin 32A is taken as a representative example, and its configuration will be described with reference to FIG.

As shown in FIG. 3, the pin 32A has a cylindrical boss having a jack hole 32A (2) formed at the end on the front side of the housing 31 and an insertion hole 32A (7) inside. A projection 32A (3) is provided integrally with the flat portion 31A of the housing 31, and a locking step 38 is formed on the back surface side.

A contact 32A (0), which will be described in detail later, is inserted and disposed inside the boss portion 32A (3). The contact 32A (0) is wired along the locking step 38 from the contact 32A (0). Is drawn up from the inside of the housing 31 as a draw-out fitting 32A (1) at a side surface portion 31B.

The boss 32A (3) has a pin 3
The ground metal 49 common to 2A, 32B and 32C is pulled up from the outside of the housing 31 along the side surface portion 31B as a drawing portion 49 (1).

At the end face 32A (4) of the boss 32A (3),
An insulating bush 32A (6) having a hole 32A (5) having the same hole diameter as the jack hole 32A (2) as a center is provided.
Except for the hole 32A (5), the periphery thereof is covered with a grounding metal fitting 49.

Similarly, the other pins 32B of the pin row 32
And 32C, the corresponding contacts 32B (0), 3C
It is wired along the locking step 38 from 2C (0) and rises from the inside of the housing 31 as draw-out fittings 32B (1) and 32C (1) on the side surface 31B, respectively.

Next, the structure of each part generally described in FIGS. 1 to 3 will be described in detail with reference to FIGS. 4 to 6. In the following description, each of the locking steps 38 to 38 will be described. Since the structure of 43 is almost the same, the locking step 38 will be described as a representative.

As shown by oblique lines in FIG. 4, the locking step portions 38 to 43 are raised with a slight thickness L2 from the flat portion 31A of the housing 31 and are flat as a whole.
It is molded as a shape that is integrally extended to the side surface portion 31B with cuts 62 to 66 cut in the middle so that the locking step portions 38 to 43 can be divided.

The locking steps 38 to 43 are
Each contact 32A (0), 32B (0), 32C (0), ...
32A (1), 32B (1), 32C (1), ...
Have a role as a pseudo substrate for routing and fixing.

The engaging step 38 is formed by a guide which is smoothly extended right and left from a rectangular head 67 formed on the side facing the side 31B toward the side 31B while forming an arc-shaped contour. It is arranged so as to be surrounded by walls 68 and 69.

Further, a pin 32A,
Although three of 32B and 32C are mounted at predetermined intervals, as shown in FIG.
(7), 32B (7), and 32C (7) are formed therein, and partially cut semicircular insertion walls 32A (8), 32B (8), and 32C (8) are formed. I have.

At the outer side, slit-shaped locking holes 32A (9), 32B for inserting fixed terminals are provided at predetermined intervals.
(9), 32C (9), contacts 32A (0), 32B (0),
Slit-shaped locking holes 32A (10), 32B (10), 32C (10) for inserting and holding 32C (0) and the like are disposed on the left and right, and insertion walls 32A (8), 32B (8). , 32C (8), 32B (11) and 32C (11) are in abutting contact with the holding wall portion 32A (11) (however, it also serves as the guide wall 68 in the locking step portion 38).

The holding wall 32A (11) and the holding wall 32B (11)
The press-fitting walls 70, 71 facing each other are formed between them, and press-fitting slits 72, 73 are formed in a groove shape on the left and right between them.

The holding wall 32B (11) and the holding wall 32
C (11) are formed with press-fitting walls 74, 75 facing each other, and press-fitting slits 76, 77 are formed between them.
Are formed in a groove shape, and a groove-shaped press-fitting slit 78 is formed in the right locking step 38 of the holding wall portion 32B (11).

Contacts 32A (0), 32B (0), 32C
(0) and the like, as shown in FIGS.
A (1), 32B (1), and 32C (1) are drawn out integrally, but before assembly, they are integrally connected in a chain by a carrier 79.

Contacts 32A (0), 32B (0), 32C
(0) and the like are respectively holding walls 32A at the bottom.
(11), 32B (11), 32C (11) locking holes 32A (10), 3
Wide press-fitting piece 32 press-fitted into 2B (10), 32C (10)
A (12), 32B (12) and 32C (12).

Contacts 32A (0), 32B (0), 32C
The tip of (0) is formed with tongue-shaped contact portions 32A (13), 32B (13), and 32C (13) whose tips are slightly curved, and these are elastically connected to the inserted jack. Makes electrical contact by contact.

The contact portions 32A (13), 32B (13), 3
2C (13), press-fit pieces 32A (12), 32B (12), 32C
A substantially rectangular connecting portion 32A (14), 32B (14), 32C (14) to which these are connected is formed integrally with the connecting portion (12).

The pull-out fitting 32A (1) has a plate shape, is bent in a direction perpendicular to the press-fitting piece 32A (12), and is developed like a hook on a horizontal plane corresponding to the surface of the locking step 38. The carrier 79 has a shape that hangs in a direction twisted by 90 degrees with respect to the direction of the press-fitting piece 32A (12).

The drawer 32B (1) also has a drawer 32.
A (1) has substantially the same shape, but the drawer 32
B (1) is bent once into an L-shape at a horizontal portion between the press-fitting piece portion 32A (12) and the carrier 79 side, and is press-fitted into the press-fitting slit 73 on the right side near this bent portion. )
Is formed in the press-fit piece 80 bent in the direction of.

Further, the drawer fitting 32C (1) also has the drawer fitting 3
It has almost the same shape as 2A (1), but withdrawal fitting 3
2C (1) is bent twice in an L-shape at a horizontal portion between the press-fitting piece portion 32A (12) and the carrier 79 side, and is press-fitted into the press-fitting slit 77 on the right side near the first bent portion. The press-fit piece 81 bent in the direction of the contact 32B (0)
On the left side near the bent portion, the press-fitting piece 82 bent in the direction of the contact 32B (0) to be press-fitted into the press-fitting slit 78.
Are formed respectively.

As described above, the contact group shown in FIG. 5 is configured such that the contacts 32A (0), 32B (0), and 32C (0) are integrated to form the shape shown in FIG. 4 is inserted into the housing 31 shown in FIG.

Contacts 32A (0), 32B (0), 32C
(0) and drawer fittings 32A (1), 32B connected thereto
(1) and 32C (1) are shown in black in FIG. 6 for easy understanding.

Contacts 32A (0), 32B (0), 32C
(0) Press-fitting pieces 32A (12), 32B (12), 32C (12)
As shown in FIG. 6, the locking holes 32 shown in FIG.
A (10), 32B (10), 32C (10)
0, 81, and 82 are press-fit slits 73, 77, and 77 shown in FIG.
Each of the carriers 79 is press-fitted as a single unit in a state where the carrier 79 is connected to the corresponding one of the carriers 78.

Further, the example shown in FIG. 6 shows a case in which the pin 32C functions as a fixed terminal of the switch. In this case, the contact 32C () surrounds the outside of the insertion wall 32C (8). 15) is a locking hole 32C shown in FIG.
Pressed into (9).

The lead-out fitting 32C (1) of the contact 32C (15)
6), as shown in FIG. 6, the press-fitting pieces 83, 84 which are spaced apart from each other by a predetermined distance until reaching the side face 31B are press-fitted into the press-fitting slits 76, 72 shown in FIG. Is held in.

In the case of manufacturing the above-described pin jack board 30, first, in the insertion step 83, the insulating bushes 32A (6) -32C (3) are inserted into the boss portions 32A (3) -32C (3) from the front side of the housing 31. The earth metal fitting 49 and the like are inserted through 32C (6).

Next, the housing 31 is subjected to the press-fitting step 84.
From the rear surface side, the chained contacts 32A (0) to 32C (0) of the carrier 79 are engaged with the locking holes 32A (10) to 32C.
Press into (10).

In the above state, the contact and the pull-out fitting are collectively pressed into the locking step of the housing, and the carrier 79 is still in a connected state. The pin jack board 30 shown in FIG.

As shown in FIG. 1, the pin jack board 30 in this case has a thickness L2 from the flat portion 31A of the housing 31 to the locking step portions 38 to 43, and side portions 31B to 31E.
(L1−L2) from the thickness L1 to the printed circuit board disposed on the end face of the head, and the length L between the locking steps 38 to 43.
3 and a space part (L1-L2) × L3 × L4 formed by a length L4 between the side surface part 31B and the head 67 of the locking step part.
Is a space in which nothing exists, so that this space can be used effectively, for example, it can be used as a storage section for electronic components.

[0053]

As described above, according to the pin jack board according to the present invention, the metal fittings for drawing out from the contacts and the like are collectively arranged on the side surface, which is a predetermined position of the housing, so that the housing and the housing can be connected to each other. It is possible to create a space in which components can be mounted between the printed circuit board and the printed circuit board arranged on the end face of the side surface. It is possible to secure a space that can be used, and thus it is possible to achieve multiple functions.

Further, according to the method of manufacturing the pin jack board according to the present invention, the draw-out portion integrated with the chain-like contact with the carrier is pressed into the locking hole provided in the locking step portion. , Since the carrier is separated after press-fitting, it can be mounted on the printed circuit board all at once,
Assembly is simplified, and pin jack boards can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state of a back surface of a pin jack board according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state of a surface of the pin jack board shown in FIG.

FIG. 3 is a partial sectional view showing a pin mounted on the pin jack board shown in FIG. 2 and a configuration in the vicinity thereof;

FIG. 4 is a rear view showing a housing portion of the pin jack board shown in FIG. 1;

5A and 5B show a configuration of a contact and its vicinity of the pin jack board shown in FIG. 1, and FIG.
(B) is a lateral side view, (C) is an upper side view, and (D) is a lower side view.

FIG. 6 is a rear view of the housing shown in FIG. 1 on which a contact and components near the contact are mounted.

FIG. 7 is a rear view showing the configuration of a conventional pin jack board.

FIG. 8 is a partial cross-sectional view showing a pin mounted on the pin jack board shown in FIG. 7 and a configuration in the vicinity thereof.

[Explanation of symbols]

10; pin jack board; 11; housing; 12A-1
2T; pin, 13A to 13B; support, 14;
15; small hole, 16; boss, 17; grounding fitting, 18;
Bush, 19; drawer, 20; connection hole, 21; connection piece, 22; contact, 23; printed circuit board, 24; connection hole, 30; pin jack board, 31;
A; plane portion, 31B to 31E; side portion, 32 to 37; pin row, 32A to 32C; pin, 32A (0) to 32C (0);
Contact, 32A (1) to 32C (1); drawer, 32A
(2); Jack hole, 32A (3); Boss, 32A (4); End face, 32A (5); Hole, 32A (6); Bush, 32A
(7) to 32C (7); insertion hole, 32A (8) to 32C (8); insertion wall, 32A (9) to 32C (9); locking hole, 32A (10) to 32
C (10); locking hole, 32A (11) to 32C (11); holding wall,
32A (112) to 32C (12); press-fit piece, 32A (13) to 3
2C (13); contact part, 32A (14) to 32C (14);
32C (15); contact, 32C (16); drawer, 38
-43; Locking steps, 44-48; Pins, 49-54; Grounding fittings, 49 (1) -54 (1); Pull-out parts, 55-56; Locking hooks, 57; 59; positioning pole, 6
0-61; hook, 62-66; cut, 67; head;
68-69; guide wall, 70-71; press-fit wall, 72-7
3; press-fit slit, 74-75; press-fit wall, 76-78;
Press-in slit, 79; Carrier, 80-82; Press-in piece, 83; Insertion step, 84; Press-in step

Claims (12)

[Claims] 1. A pin jack board in which a plurality of pins are fixed to a housing, each of the pins is covered with a grounding metal around a boss protruding from the housing, and a contact is accommodated inside the pin jack board. A pin jack board, wherein metal fittings drawn out of the housing are collectively arranged at a predetermined position of the housing. 2. The pin jack board according to claim 1, wherein a drawer from the grounding metal is collectively arranged at the predetermined position. 3. The pin jack board according to claim 1, wherein the predetermined position is a peripheral portion of the housing. 4. The pin jack board according to claim 1, wherein an end peripheral surface of the rear surface of the housing is a mounting surface for a printed circuit board. 5. The pin jack board according to claim 1, wherein a space in which components can be mounted is provided between a locking step portion on which the draw-out fitting is provided and an end peripheral surface on a back surface of the housing. . 6. The pin jack board according to claim 1, wherein the pull-out fitting is pressed into and engaged with a locking hole provided in a locking step formed on a rear surface of the housing. 7. The pin jack board according to claim 1, wherein the drawer is disposed at the predetermined position from a surface side of the housing of the grounding metal. 8. The pin jack board according to claim 1, wherein an end face of the boss is covered with a grounding metal via an insulating bush. 9. After passing through an insertion step of inserting a grounding metal fitting from the front side of the housing into the boss portion, and a press-fitting step of press-fitting a chain-like contact with a carrier into the locking hole from the rear side of the housing. And a method of manufacturing a pin jack board, comprising separating the carrier. 10. The method of manufacturing a pin jack board according to claim 9, wherein the end face of the boss portion is covered with a grounding metal via an insulating bush. 11. The method for manufacturing a pin jack board according to claim 9, wherein the press-fitting is performed collectively for a plurality of contacts and a drawer connected thereto. 12. The method according to claim 9, wherein the locking hole is provided in a locking step.