JP3198311B2 - Two-stage jack - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-stage jack, and more specifically, to a plug insertion opening, a plug insertion space, a plug contact piece and the like in each of two sections formed side by side on an electrically insulating body. Related to a two-stage jack provided separately.

[0002]

2. Description of the Related Art Japanese Unexamined Utility Model Publication No. 59-284 discloses a conventional two-stage jack of this type. As shown in FIG. 17, a two-stage jack described in this publication is a vertically elongated rectangular parallelepiped body 1 formed of an electrically insulating synthetic resin.
00 is divided into a lower portion and an upper portion, and a first plug insertion port 110 is provided at a front end face of the lower portion of the body 100.
A second plug insertion port 120 is provided on the front end surface of the upper portion. In the inside of the body 100, a first plug insertion space (not shown) communicating with the first plug insertion opening 110 and a plug (not shown) inserted into the first plug insertion space are provided on the lower side. A first plug contact piece (not shown) provided with a contact for contacting the electrode is provided, and a second plug insertion space 200 (see FIG. 18) communicating with the second plug insertion port 120 is provided on the upper step side thereof. A second plug contact piece 130 (see FIG. 18) provided with a contact for contacting an electrode of a plug (not shown) inserted into the second plug insertion space 200 is provided. Then, as can be inferred from FIG. 18, the body 100 has a rear surface (plug insertion port 1).
20 is open, and the first plug contact piece and the second plug contact piece 210 are attached to the body 100 from the opened rear side of the body 100.
Is inserted into each of the assembly parts.

[0003] Such a two-stage jack has a smaller width than the case where two single-stage jacks having one plug insertion port are arranged side by side, so that the mounting space occupied on the mounted wiring board is small. It has the advantage that it can be completed.

[0004] However, in recent years, under the circumstances that devices for communication and information processing have been drastically reduced in size, the width of the two-stage jack described above has been further reduced. Demands are becoming stronger.

[0005]

The inventors of the present application have conducted intensive studies on factors that can reduce the lateral width of the two-stage jack described in the above publication, and have found the following facts.

That is, as can be seen from FIGS. 17 and 18,
In this two-stage jack, the first plug insertion port 1
10 and the second plug insertion opening 120 are arranged in the vertical direction A, while the plug contact piece 130 is in the plug insertion space 2.
00, that is, right beside the plug insertion space 200, and its bending deformation direction is a direction orthogonal to the vertical direction A. Therefore, the plug contact piece 130 is provided next to the plug insertion space 200. The fact that the lateral width of the body 100 is increased by an amount required to secure an assembling place and its bending deformation allowance has been ascertained.

In a two-stage jack in which it is required to provide a switch contact mechanism including a fixed contact and a movable contact together with a plug contact corresponding to a plug insertion space. The plug contact piece 1 beside the space 200
If the conventional concept of disposing 30 is adopted, it is necessary to ensure the assembling location of the switch contact mechanism and the bending deformation allowance of the movable contact piece beside the plug insertion space 200, so that the lateral width is further increased. Ascertained the fact.

The present invention has been made in view of the above, and it is an object of the present invention to provide a place for assembling a contact piece for a plug or a switch contact mechanism or a bending allowance for the contact piece beside a plug insertion space. Figure 1
An object of the present invention is to provide a two-stage jack whose width can be further reduced than in the two-stage jack described with reference to FIGS.

Another object of the present invention, in the two-stage jack forming the two plug insertion opening into one body,
An object of the present invention is to provide a two-stage jack whose width can be reduced.

Still another object of the present invention is to form a long plug when connecting terminals of a plug contact and a switch contact provided on a lower portion and an upper portion of a body protrude below the body. It is an object of the present invention to provide a two-stage jack capable of preventing a bent connection terminal from being bent.

Still another object of the present invention is to mount a two-stage jack having a reduced horizontal width on a wiring board, in which the overlapping area with the wiring board must be reduced. An object of the present invention is to provide a two-stage jack whose stability can be compensated for by utilizing a shield frame attached to the two-stage jack.

[0012]

According to a first aspect of the present invention, there is provided a two-stage jack comprising an electrically insulating body having a lower portion and an upper portion.
And a first plug insertion port in the lower part,
The upper part has a second plug insertion port, and the lower part
A first plug insertion space communicating with the first plug insertion opening to have been inserted into the first and second two in the arrangement direction of the plug insertion opening faces the first plug insertion space and the plug insertion space that the plug of the electrode in contact with the contacts and the first plug contact piece is deployed to be deflected to the arrangement direction
On the other hand, a second plug insertion space communicating with the second plug insertion opening in the upper portion, and a contact with an electrode of the plug facing the second plug insertion space in the above-mentioned arrangement direction and being inserted into the plug insertion space. And a contact piece for a second plug that is bent and deformed in the arrangement direction upon contact with the second plug .
1st plug contact lower part side attachment part and 2nd plug contact
The upper part of the body is opposite to the opposite side of the body
Open on the side of the connector and the connection provided on the first plug contact piece
A first groove formed in a lower wall of the lower-stage-side assembly portion;
Into the body under pressure and project below the body,
The connection terminal provided on the plug contact piece is
Press-fit into the second groove provided in the side wall of
It protrudes below the body .

The two-stage jack of the invention according to claim 2 is
A plurality of first and second plug contacts are respectively provided, and all of the plug contacts are the first and second plug contacts.
In the arrangement direction of the two plug insertion openings, the contact is made to contact the electrode of the plug inserted into the plug insertion space in the plug insertion space and to be bent and deformed in the arrangement direction. Things.

[0014] The two-stage jack of the invention according to claim 3 is :
Is constituted by a movable contact piece having a movable contact which is disjunctive with respect to the fixed contacts of the solid Teise' piece and the fixed contact piece and the tip portion of the movable contact piece, it has been inserted into the plug insertion space Plug And a first and second switch contact mechanism provided with a contact portion that flexes and deforms the movable contact piece in a direction in which the movable contact piece is separated from the fixed contact by contact with the first contact piece mechanism. The contact portion faces the first plug insertion space in the direction in which the first and second plug insertion openings are arranged, and the direction in which the contact portion bends and deforms is aligned with the arrangement direction. The contact portion faces the second plug insertion space in the arrangement direction, and the direction in which the contact portion bends and deforms is matched with the arrangement direction.

The two-stage jack of the invention according to claim 4 is:
The lower plug-side assembly of the first plug contact and the first switch contact mechanism and the upper plug-side assembly of the second plug contact and the second switch contact mechanism are on opposite sides of the body. The body is opened at the side surface, and the first plug contact piece and the connection terminal provided on the first switch contact piece mechanism are inserted into the first groove portion provided on the lower wall portion of the lower-stage-side assembly portion in a press-fit state, and the body is inserted. Of the second plug contact piece and the connection terminal provided on the second switch contact piece mechanism are inserted into the second groove portion provided on the side wall portion of the lower stage side assembly portion in a press-fit state. It protrudes below the body.

[0016] The two-stage jack of the invention according to claim 5 is as follows.
It is said that the first groove is cut into the lower wall from the open side of the lower step-side assembly, and the second groove is cut into the side wall from the open side of the upper step assemble. Things.

The two-stage jack of the invention according to claim 6 is:
The open portion of the lower-stage assembly portion and the open portion of the upper-stage assembly portion are closed by a cover body attached thereto, and the body with the cover body is surrounded by a metal frame. The connection terminal provided on the frame protrudes below the body.

[0018]

According to the first aspect of the present invention, the first plug contact piece faces the first plug insertion space in the direction in which the first and second plug insertion openings are arranged, and is inserted into the plug insertion space. Since the contacts of the plugs that have been made come into contact with the contacts and are bent and deformed in the above-mentioned arrangement direction, the first plug contact piece is attached to the side of the first plug insertion space (that is, the side orthogonal to the above-mentioned arrangement direction). It is not necessary to secure the deformation allowance of the movable contact piece. In particular, according to the second aspect of the present invention, there is no need to secure an assembling location of the first plug contact piece or a bending allowance of the movable contact piece beside the first plug insertion space. The same effect is exerted on the positional relationship between the second plug insertion space and the second plug contact piece.

[0019] The above effect is exhibited even when the deployment and for the first contact pieces and the second plug for plug distributed to the lower portion and the upper portion of the ball di.

Also, the second plug contact, which must be long,
One of the connection terminals is provided on the side wall of the lower side assembly part.
Are inserted in the press-fitted state into the second groove part
The connection terminal is supported by the second groove to prevent bending deformation
Is done.

According to the third aspect of the present invention, it is not necessary to secure the deformation allowance of the movable contact piece in the first switch contact mechanism and the second switch contact mechanism beside the corresponding plug insertion space. . This effect is exhibited even when deployed, such as the first switch contact piece mechanism and the second switch contact piece mechanism allocated to the lower portion and the upper portion of the body in the invention according to the 請 Motomeko 5.

According to the fourth aspect of the present invention, the connection terminals of the fixed contact and the movable contact in the second switch contact mechanism, which must be long, are provided on the side wall portion of the lower-stage-side assembly portion. Since the connection terminals are inserted into the second groove portion in a press-fitted state, their connection terminals are supported by the second groove portion and the bending deformation thereof is prevented.

According to the fifth aspect of the invention, the first plug contact piece and the fixed contact piece and the movable contact piece of the first switch contact piece mechanism are moved from the open side of the lower step side assembly portion to the lower step side. The second plug contact piece and the fixed contact piece and the movable contact piece of the second switch contact piece mechanism can be assembled from the open side of the upper section side assembly section to the upper section side assembly section. Since they can be incorporated, they can be easily assembled, and maintenance and repair after the assembly can be easily performed.

According to the sixth aspect of the present invention, the mounting state of the two-stage jack on the wiring board is stabilized by fixing the connection terminals provided on the metal frame to the wiring board.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view for explaining a positional relationship between a lower-stage assembly portion M1 and an upper-stage assembly portion M2 secured in a body 10 of a two-stage jack according to an embodiment of the present invention. FIGS. 2 and 3 are schematic perspective views showing the body 10 and the cover bodies 94 and 95, FIG. 4 is a front view of the body 10, and FIG. 5 is a partially cutaway view taken along line VV of FIG. FIG. 6 to FIG. 9 are perspective views for explaining the connecting pieces incorporated in the lower-stage-side assembly portion M1, and FIG. 10 is a two-stage jack. Right side view of FIGS.
FIG. 13 is a perspective view for explaining the connecting pieces incorporated in the upper-stage-side assembly portion M2, FIG. 14 is a bottom view of the two-stage jack, and FIG. FIG. 16 is a left side view of the front type jack.

As shown in FIG. 1, in a two-stage jack according to an embodiment of the present invention, a body 10 is basically divided into a lower section and an upper section, and a right side wall is formed on the lower section side. 1
The portion surrounded by 1, the lower wall portion 12, and the middle wall portion 13 is a lower-stage-side assembly portion M1, and in the upper-stage-side section,
A portion surrounded by the left side wall portion 14, the upper wall portion 15, and the middle wall portion 13 is an upper-stage-side assembly portion M2. Also,
As can be seen from FIGS. 2 and 3, in the front wall portion 16 of the body 10, the first and second plug insertion ports 17, 18 arranged in two rows at intervals are provided on the lower and upper row sides. It is provided separately for each section.

As shown in FIG. 5, two first plug contacts 21 and 22 and two first switch contact mechanisms 23 and 24 are attached to the lower-stage assembly portion M1. Is formed in communication with the first plug insertion opening 17.
It corresponds to the plug insertion space 25. Next, the first plug contacts 21 and 22 and the first switch contact mechanism 2
The structures 3 and 24 and the state of assembly to the lower-stage-side assembly section M1 will be individually described. In addition, two first plug contact pieces 2
8 and 9 are shown in FIGS. 8 and 9, and two first switch contact mechanisms 23 and 24 are shown in FIGS. 6 and 7.

The first plug contact piece 21 shown in FIG.
6 has contacts 27, 27 curved in the same direction at two ends facing each other in the up-down direction, and has a cut-and-raised engagement claw 28 at an intermediate portion of the C-shaped portion 26. Further, a connection terminal 31 extends downward from the C-shaped portion 26 via an L-shaped portion 29. This first plug contact piece 21
As shown in FIG. 5, the L-shaped portion 29 and the connection terminal 31 are connected to the lower wall 12
The connection terminal 31 is press-fitted into a first groove 32 provided over the body 10 and protrudes below the body 10. The pair of contacts 27, 27 face the first plug insertion space 25 from above and below, and slightly protrude into the first plug insertion space 25. Here, the vertical direction corresponds to the first plug insertion port 17.
And the second plug insertion port 18 coincides with the arrangement direction A (hereinafter referred to as the vertical direction A). Therefore, when the plug P1 is inserted into the first plug insertion space 18 from the first plug insertion opening 17, the contact 27,
The first plug contact piece 21 (specifically, the contacts 27, 27) is bent and deformed in the up-down direction A due to the contact of 27. In this embodiment, the C-shaped part 26 of the first plug contact piece 21 is arranged so as to surround the first plug insertion space 25, and a part of the end face of the C-shaped part 26 is located on the right side of the body 10. It is exposed on the surface side (see FIG. 10).

The first plug contact piece 22 shown in FIG.
3 has a curved contact point 35 at the tip of a contact piece 34 formed in a cut-and-raised shape, and a connection terminal 37 extends downward from an L-shaped portion 36 extending from the flat plate portion 33. As shown in FIG. 5, the first plug contact piece 22 is
6 and the connection terminal 37 are press-fitted into another first groove 38 provided from the lower-stage assembly portion M1 of the body 10 to the lower wall portion 12 so that the connection terminal 37 protrudes below the body 10. . The contact 35 faces the first plug insertion space 25 from above and slightly protrudes into the first plug insertion space 25. Therefore, the first plug insertion space 25
The contact 35 comes into contact with the electrode of the plug P1 inserted in the plug P1, and the first plug contact piece 22 (specifically, the contact piece portion 34) is bent and deformed upward (corresponding to the above-described arrangement direction).

The first switch contact mechanism 24 shown in FIG. 6 is composed of a fixed contact 39 and a movable contact 42 having a movable contact 43 separated from and attached to a fixed contact 41 of the fixed contact 39. A contact portion 44 is provided at the tip of the movable contact piece 42, and a connection terminal 45 extends downward from the fixed contact piece 39, and a connection terminal 46 extends downward from the movable contact piece 42. In the first switch contact mechanism 24, the connection terminal 45 of the fixed contact 39 is connected to the body 10 as shown in FIG.
The connection terminal 45 is pressed into another first groove 47 provided in the lower wall portion 12 and protrudes below the body 10.
Further, the connection terminal 46 of the movable contact piece 42 is pressed into another first groove 48 provided in the lower wall portion 12 of the body 10, and the connection terminal 46 protrudes below the body 10. The contact portion 44 faces the first plug insertion space 25 from below and slightly projects into the first plug insertion space 25.
Therefore, when the contact portion 44 comes into contact with the plug P1 inserted into the first plug insertion space 25, the contact portion 44
Deforms the movable contact piece 42 downward to separate the movable contact 43 from the fixed contact 41.

The first switch contact mechanism 23 shown in FIG. 7 is composed of a fixed contact piece 49 and a movable contact piece 52 having a movable contact 53 separated from and attached to a fixed contact 51 of the fixed contact piece 49. A contact portion 54 is provided at the tip of the movable contact piece 52, and a connection terminal 55 extends downward from the fixed contact piece 49 and a connection terminal 56 extends from the movable contact piece 52. In the first switch contact mechanism 23, as shown in FIG.
The connection terminal 55 is pressed into another first groove portion 57 provided on the lower wall portion 12 and protrudes below the body 10.
Further, the connection terminal 56 of the movable contact piece 52 is press-fitted into another first groove 58 provided on the lower wall portion 12 of the body 10, and the connection terminal 56 protrudes below the body 10. The contact portion 54 faces the first plug insertion space 25 from below and slightly protrudes into the first plug insertion space 25.
Therefore, when the contact portion 54 comes into contact with the plug P1 inserted into the first plug insertion space 25, the contact portion 54
Deforms the movable contact piece 52 downward to separate the movable contact 53 from the fixed contact 51.

As shown in FIG. 10, a second plug contact piece 61 and two second switch contact mechanism mechanisms 62 and 63 are attached to the upper-stage-side attachment portion M2. It corresponds to a second plug insertion space 64 formed to communicate with the insertion opening 18. Next, the structures of the second plug contact piece 61 and the second switch contact piece mechanisms 62 and 63 and the state of assembly to the upper-stage-side assembly section M2 will be individually described.
The second plug contact piece 61 is shown in FIG.
FIG. 12 and FIG.
And is shown.

The second plug contact piece 61 shown in FIG. 11 has contacts 66, 66 curved in the same direction at two ends of the C-shaped portion 65 which are opposed in the vertical direction, respectively. The connection terminal 67 extends downward from the connection terminal 67. As shown in FIG. 10, the second plug contact piece 61 has its long connection terminal 67 connected to the lower-stage assembly portion M of the body 10.
The connection terminal 67 is press-fitted into a long second groove 68 provided in the right side wall 11 of the first unit 11 and protrudes below the body 10. Then, a pair of contacts 66, 66 face the second plug insertion space 64 from the vertical direction A and slightly protrude into the second plug insertion space 64. Therefore, when the plug P2 is inserted into the second plug insertion space 64 from the second plug insertion opening 18, the contacts 66 and 6 are connected to the electrodes of the plug P2.
6 comes into contact with each other and the second plug contact piece 61 (specifically, the contact 6
6, 66) is bent and deformed in the vertical direction A. In this embodiment, the C-shaped portion 65 of the second plug contact piece 61 is
It is arranged so as to surround the plug insertion space 64.

The second switch contact mechanism 62 shown in FIG. 12 is composed of a fixed contact 69 and a movable contact 72 provided with a movable contact 73 separated from and fixed to a fixed contact 71 of the fixed contact 69. A contact portion 74 is provided at the tip of the movable contact piece 72. Further, an intermediate terminal 75 is provided on the movable contact piece 72, and an intermediate terminal 76 from which a long connection terminal 77 extends is overlapped and connected to the intermediate terminal 75. A long connection terminal 78 extends downward from the fixed contact piece 69. In the second switch contact mechanism 62, as shown in FIG.
8 is a right side wall of the lower-stage-side assembly portion M1 of the body 10
The connection terminal 78 is pressed into another long second groove 79 provided in the portion 11 and protrudes below the body 10. Further, the long connection terminal 77 is press-fitted into another long second groove portion 81 provided on the right side wall portion 11 of the lower-stage-side assembly portion M1 of the body 10 so that the connection terminal 77 protrudes below the body 10. At the same time, the intermediate terminals 75 and 76 overlap each other and are press-fitted into the second groove 81. The contact portion 74 of the movable contact piece 73 faces the second plug insertion space 64 from below and slightly protrudes into the second plug insertion space 64. Therefore, the plug P is inserted into the second plug insertion space 64.
When the plug 2 is inserted, when the contact portion 74 comes into contact with the electrode of the plug P2, the contact portion 74 causes the movable contact piece 72 to bend downward to separate the movable contact 73 from the fixed contact 71.

The second switch contact mechanism 63 shown in FIG. 13 comprises a fixed contact piece 82 and a movable contact piece 84 having a movable contact 85 separated from and attached to a fixed contact 83 of the fixed contact piece 82. A contact portion 86 is provided at an intermediate portion of the movable contact piece 84. An intermediate terminal 88 is provided on the movable contact piece 84, and an intermediate terminal 91 from which a long connection terminal 89 extends is overlapped and connected to the intermediate terminal 88. A long connection terminal 87 extends downward from the fixed contact piece 82. In the second switch contact mechanism 63, as shown in FIG.
7 is a right side wall of the lower-stage-side assembly portion M1 of the body 10
The connection terminal 87 is pressed into another long second groove portion 92 provided in the portion 11 and protrudes below the body 10. Further, the long connection terminal 89 is press-fitted into another long second groove 93 provided on the right side wall portion 11 of the lower-stage side assembly portion M1 of the body 10, and the connection terminal 89 protrudes below the body 10. At the same time, the intermediate terminals 88 and 91 overlap each other and are pressed into the second groove 93. The contact portion 86 of the movable contact piece 84 faces the second plug insertion space 64 from above and slightly projects into the second plug insertion space 64. Therefore, the plug P is inserted into the second plug insertion space 64.
When the plug 2 is inserted, when the contact portion 86 comes into contact with the electrode of the plug P2, the contact portion 86 causes the movable contact piece 84 to bend and deform downward, thereby separating the movable contact 85 from the fixed contact 83.

As shown in FIG. 2 and FIG. 3, covers 94 and 95 are attached to the body 10, and the cover 94 is attached to the opening of the lower-stage assembly portion M1, and the upper-stage assembly is installed. The cover body 95 is attached to the open part of the attachment part M2, and each open part is closed by the cover bodies 94 and 95. Also,
As shown in FIGS. 15 and 16, the front, rear, left and right side surfaces and the top surface of the body 10 with the covers 94 and 95 mounted thereon function as a shield frame.
A plurality of connection terminals 97 provided at the lower end of the metal frame 96 protrude below the body 10.

In this embodiment, a plurality of the first
All of the grooves 32, 38, 47, 48, 58, and 57 are cut into the lower wall 12 from the opening side of the lower-stage-side assembly portion M1, and all of the second grooves 68, 79, 81, and 89 are formed. It is cut into the right side wall 11 from the open side of the upper part side assembly part M2.

In the two-stage jack constructed as described above, the movable contacts of the first plug contacts 21 and 34 and the first switch contact mechanisms 23 and 24 beside the first plug insertion space 25. It is not necessary to secure the deformation allowance of the pieces 42, 52, and the movable contact pieces 72, 84 of the second plug contact piece 61 and the second switch contact piece mechanisms 62, 63 beside the second plug insertion space 64. It is no longer necessary to secure the deformation allowance of the connection terminal 67 and the connection terminals 67 of the second plug contact pieces 61 and the connection terminals 77, 78, 87 of the second switch contact piece mechanisms 62 and 63.
89 is a long second groove 68, 7 provided in the right side wall 11;
9, 81, 92, and 93, the two-stage jack can be configured using the body 10 having a short width. In addition, the connection terminals 77, 78, 87,
89 are press-fitted into the long second grooves 68, 79, 81, 92, 93 provided on the right side wall portion 11 of the lower-stage-side assembly portion M <b> 1, so that their connection terminals 77, 7 are provided.
8, 87, 89 are the second grooves 68, 79, 81, 92, 9
3 has the advantage of preventing its bending deformation. Furthermore, the first plug contact pieces 21 and 34 and the first switch contact piece mechanisms 23 and 24 can be incorporated into the lower assembly part M1 from the open side of the lower assembly part M1. Contact piece 61 and second switch contact mechanism 6
2, 63 can be easily incorporated into the upper assembly M2 from the open side of the upper assembly M2, and maintenance and repair after assembly can be facilitated. Then, like the second switch contact mechanism 62, 63, the movable contact 72, 84
And its connection terminals 77 and 87 are formed separately.
The intermediate terminals 75 and 88 on the movable contact pieces 72 and 84 and the intermediate terminals 76 and 91 on the connection terminals 77 and 87 are connected to the second groove 81,
If they are press-fitted into the connector 93 and connected in an overlapping manner, not only can they be easily assembled into the body 10 but also the degree of freedom in pulling out the connection terminals 77 and 87 below the body 10 can be increased. There is an advantage of improving. In addition, the connection terminal 97 provided on the metal frame 96 is fixed to the wiring board PB shown by a dashed line in FIGS. 15 and 16 by soldering or the like, so that the mounting state of the two-stage jack on the wiring board PB is stable. I do.

[0039]

According to the first and second aspects of the present invention, the space for assembling the first plug contact and the second plug contact next to the first plug insertion space and the second plug insertion space. Since there is no need to secure the deformation allowance for the movable contact piece,
This has the effect that the width of the two-stage jack can be reduced accordingly. In addition, a long second plug
The connection terminal of the contact piece is inserted into the second groove portion in a press-fit state.
This prevents the connection terminal from being bent and deformed.
There is fruit. With the configuration according to the third aspect of the invention, the same effect can be obtained in a two-stage jack provided with the first switch contact mechanism and the second switch contact mechanism .

According to the fourth aspect of the invention, the length is long.
The contact between the fixed contact and the movable contact in the second switch contact mechanism
The connection terminal is pressed by the second groove portion inserted in a press-fit state.
These connection terminals have the effect of preventing bending deformation.
You.

According to the fifth aspect of the present invention, when assembling the first plug contact piece and the fixed contact piece and the movable contact piece of the first switch contact piece mechanism in the lower assembly space, the upper assembly space is used. The contact piece for the second plug and the second switch contact mechanism incorporated in the connector do not disturb, and conversely, the contact piece for the second plug and the fixed contact piece of the second switch contact mechanism in the upper assembly space. When assembling the movable contact piece, the first plug contact piece or the first
Since the switch contact mechanism is not obstructed, they can be easily assembled, and maintenance and repair after assembling become easy.

According to the sixth aspect of the present invention, when a two-stage jack having a reduced horizontal width is mounted on a wiring board, although the overlapping area with the wiring board is reduced, the mounting stability is likely to be impaired. In other words, there is an effect that such a situation that the mounting stability is impaired due to the connection terminals provided on the metal frame functioning as the shield frame being fixed to the wiring board is less likely to occur.

[Brief description of the drawings]

FIG. 1 is a front view for explaining a positional relationship between a lower-stage assembly portion and an upper-stage assembly portion secured to a body of a two-stage jack according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a body and a cover viewed from an oblique left side.

FIG. 3 is a schematic perspective view of a body and a cover as viewed obliquely from the right side.

FIG. 4 is a front view of the body.

FIG. 5 is a partially broken side view of a two-stage jack corresponding to a partially broken portion along a line VV of FIG. 4;

FIG. 6 is a perspective view of a first switch contact mechanism.

FIG. 7 is a perspective view of another first switch contact mechanism.

FIG. 8 is a perspective view of a first plug contact piece.

FIG. 9 is a perspective view of another first contact piece for a plug.

FIG. 10 is a right side view of the two-stage jack.

FIG. 11 is a perspective view of a second plug contact piece.

FIG. 12 is a perspective view of a second switch contact piece mechanism.

FIG. 13 is a perspective view of another second switch contact mechanism.

FIG. 14 is a bottom view of the two-stage jack.

FIG. 15 is a front view of a two-stage jack in which a body is surrounded by a metal frame.

FIG. 16 is a left side view of a two-stage jack in which a body is surrounded by a metal frame.

FIG. 17 is a perspective view showing a body of a conventional two-stage jack.

FIG. 18 is a partially broken plan view of a conventional two-stage jack.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Body 11 Right side wall part 12 Lower wall part 17, 18 Plug insertion port part 21, 22, 61 Plug contact piece 24, 23, 63, 62 Switch contact piece mechanism 25, 64 Plug insertion space 31, 37, 45, 46 , 55, 56, 67, 77, 7
8, 87, 89 connection terminals 32, 38, 47, 48, 57, 58, 68, 79, 8
1, 92, 93 Grooves 39, 49, 69, 82 Fixed contacts 42, 52, 72, 84 Movable contacts 44, 54, 74, 86 Contact portions 94, 95 Cover body 96 Metal frame 97 Metal frame connection terminal A Vertical direction (Plug insertion port arrangement direction) P1, P2 Plug M1 Lower part side mounting part M2 Upper part side mounting part

Claims (6)

(57) [Claims] An electric insulating body includes a lower portion and an upper portion.
The first plug insertion port is located at the bottom
The step portion is provided with a second plug insertion port, and the lower portion is provided with a first plug insertion space communicating with the first plug insertion port, and a first plug insertion space in the first and second plug insertion ports. It faces the plug insertion space and in contact with the contacts on the electrodes of the plug that has been inserted into the plug insertion space and the first plug contact piece is resiliently deformed to the arrangement direction
On the other hand, the second plug insertion space communicating with the second plug insertion port portion in the upper portion and the electrode of the plug facing the second plug insertion space in the above-mentioned arrangement direction and being inserted into the plug insertion space are provided. A second plug contact piece that is deformed in the arrangement direction by contact of the contact points is provided;
And the lower plug side of the first plug contact piece and the second plug contact piece.
The upper part on one side is incompatible with the body
Open on the side surface of the first plug, the contact provided on the first plug contact piece.
A first groove in which a connection terminal is provided in a lower wall portion of the lower-stage-side assembly portion
Part is press-fit into the part and protrudes below the body.
The connection terminal provided on the 2 plug contact piece is assembled on the lower part side
Press-fit into the second groove provided in the side wall of the part
A two-stage jack that protrudes below the body . A plurality of first and second plug contact pieces are provided, and all of the plug contact pieces are arranged in a plug insertion space in the direction in which the first and second plug insertion openings are arranged. 2. The two-stage jack according to claim 1, wherein the contact is brought into contact with an electrode of the plug inserted into the plug insertion space so as to bend and deform in the arrangement direction. 3. 3. A fixed contact piece and a movable contact piece having a movable contact which is separated from and attached to the fixed contact piece of the fixed contact piece, and the movable contact piece is inserted into a plug insertion space at a tip end of the movable contact piece. A first switch contact mechanism provided with a contact portion for flexing and deforming the movable contact in a direction in which the movable contact is separated from the fixed contact by coming into contact with the plug, and a first switch. The contact portion of the contact mechanism faces the first plug insertion space in the direction in which the first and second plug insertion openings are arranged, and the direction in which the contact portion bends and deforms is aligned with the arrangement direction, and the second switch is provided. 3. The two-stage jack according to claim 2, wherein the contact portion of the contact piece mechanism faces the second plug insertion space in the arrangement direction, and a direction in which the contact portion bends and deforms is aligned with the arrangement direction. 4. A lower portion side assembling part of the first switch contact piece mechanism and the upper portion side assembling part of the second switch contact piece mechanism is opened at opposite side of the side surface of the body, first switch contact The connection terminal provided on the one-side mechanism is inserted into the first groove provided on the lower wall of the lower-stage-side assembling part in a press-fit state, protrudes below the body, and is provided on the second switch contact mechanism. 4. The two-stage jack according to claim 3 , wherein the connection terminal is inserted into the second groove portion provided in the side wall portion of the lower-stage-side assembly portion in a press-fit state and protrudes below the body. 5. The first groove portion, and the open side of the lower portion side assembling part cut into the lower wall portion, a second groove, write cut in the side wall portion from the open side of the upper portion side assembling part Claims
4. The two-stage jack described in 4 . 6. An open portion of the lower-stage-side assembly portion and an open portion of the upper-stage-side assembly portion are closed by a cover body attached thereto, and the body on which the cover body is mounted is formed by a metal frame. 6. The two-stage jack according to claim 5 , wherein the connection terminals surrounded and provided on the metal frame protrude below the body.