JP2001203043A - Compound modular jack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promote down-sizing and thinning of a personal computer or the like, by avoiding tendency of mounting space getting larger due to fitting of different modular jacks for a telephone line and LAN on a personal computer or the like. SOLUTION: A first and a second insertion concave parts 4, 5 are put in parallel on the front face 3 of a single casing 2. Contact pins 6, 7 of both concave parts 4, 5 are put on the left and right walls. A part of the partition wall partitioning off the concave parts 4, 5 is a movable partitioning wall 9 sliding longitudinally, which has engaging parts 35, 36 engaging with engaging levers of the modular jack each inserted into insertion concaves 4, 5. The movable partitioning wall 9 is moved either toward the insertion concaves 4 or 5, which stops the other concave part 5 or 4 from working.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite modular jack which is mounted on, for example, a notebook computer and connects a telephone line or a LAN (local area network) line.

[0002]

2. Description of the Related Art Normally, a notebook personal computer is provided with a modular jack for connecting a modular plug from a telephone line. On the other hand, business people also exchange data by connecting a laptop computer brought back from the office to the company's LAN line, so in addition to the above-mentioned telephone line modular jack, Some are provided with modular jacks for LAN lines that are slightly larger than this.

Conventionally, modular jacks for telephone lines,
The modular jack for the LAN line is a separate unit, and is embedded in a separate accommodation hole on the side surface of the main body casing of the notebook computer.

[0004]

However, in such an arrangement, the mounting area becomes large, and it is no longer possible to cope with the recent miniaturization and thinning of a notebook personal computer. The present invention has been made in view of the above problems, and an object of the present invention is to provide a composite modular jack that can reduce the mounting area and contribute to the reduction in size and thickness of a mounting target.

[0005]

Means for Solving the Problems As means for solving the above problems, the invention according to claim 1 comprises a single casing and side-by-side disposed on the front surface of the casing, which have different specifications. It is characterized by comprising a pair of insertion recesses for inserting and removing the modular plug, and contact pin groups having different numbers of poles respectively arranged on opposite walls with a partition wall separating the pair of insertion recesses therebetween. is there.

In the present invention, by laying out a notebook computer in a horizontal configuration, for example, a two-core plug from a normal telephone line and an eight-core plug for LAN can be inserted and removed. The contact pin group of each insertion recess is arranged along the lateral direction, and the height can be reduced. In addition, since each contact pin group is arranged on the wall opposite to the partition wall, the thickness of the partition wall can be reduced, and the size can be reduced in the horizontal direction in combination with the single casing. . As a result, the mounting area can be kept small, which can contribute to the miniaturization and thinning of a notebook computer or the like.

According to a second aspect of the present invention, in the first aspect, the casing includes a main body, and a movable portion that is slidably supported in a lateral direction by the main body and forms a part of the partition wall. The movable portion has a pair of engaging portions for respectively engaging the engaging levers of the modular plugs having the different specifications, and by sliding, the pair of engaging portions are selectively provided on the corresponding insertion recess side. Displacement prevents insertion of a corresponding modular plug into a corresponding insertion recess.

According to the present invention, the movable portion can be slid toward one of the insertion recesses to prevent the use of one of the insertion recesses and to enable the use of only the other insertion recess. Compared to a case where insertion recesses of a normal size are simply arranged side by side, the size can be reduced in the horizontal direction, and the mounting area can be further reduced. According to a third aspect of the present invention, in the second aspect, each engaging portion has a cam surface which slides the movable portion by contacting the corresponding modular plug to be inserted. According to the present invention, when the modular plug is inserted into one of the insertion concave portions, the other insertion concave portion automatically becomes in a state where it cannot be used, and the workability is good.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a composite modular jack according to an embodiment of the present invention. With reference to FIG. 1, the present composite modular jack 1 has a single casing 2, and a front face 3 of the casing 2 has first and second insertion recesses for inserting and removing modular plugs having different specifications. 4, 5 are arranged side by side and open forward. In FIG. 1, X1 and X2 are casings 2
, Y1 and Y2 represent left and right sides of the casing 2, and Z1 and Z2 represent above and below the casing 2. The same applies to the following figures. The front, rear, left, right, and up and down directions in the present embodiment are set for the convenience of the composite modular jack 1 alone. Just set it.

A first contact pin group 6 having two poles is arranged in the first insertion recess 4, and 8
A second contact pin group 7 forming a pole is arranged.
A corresponding two-core telephone line modular plug is inserted into and removed from the first insertion recess 4, and a corresponding eight-core LAN line modular plug is inserted and removed into the second insertion recess 5. It has become. The casing 2 includes a main body 8 and a movable partition wall 9 as a movable part. Body 8
Are an upper wall 10, a lower wall 11, a left wall 12 holding the contact pin group 7, a right wall 13 holding the contact pin group 6,
And a rear wall 14, and a pair of fixed partition walls 15, 15 protruding from intermediate portions of the upper wall 10 and the lower wall 11, respectively. The movable partition wall 9 is supported on the pair of fixed partition walls 15 and 15 so as to be slidable in the horizontal direction. A pair of fixed partition walls 15,
A partition wall that partitions the first and second insertion recesses 4 and 5 from each other is constituted by the movable partition wall 15 and the movable partition wall 9. An opening 14 a is formed at the center of the rear wall 14 so as to substantially correspond to the movable range of the movable partition wall 9.

In FIG. 1, reference numeral 31 denotes a guide groove which is open to the inner and outer surfaces of the upper wall 10 and the lower wall 11 and extends in the lateral direction.
As shown in FIGS. 3 and 5, the guide grooves 31 engage the first guided projections 32 of the movable partition wall 9 to guide the movable partition wall 9 to slide in the lateral direction. . Referring to FIG. 2A, first contact pin group 6
Has two contact pins 6a and 6b arranged vertically, and the contact pin 6a
Fixed part 1 inserted and fixed in fixing hole 16 penetrating before and after
7, a cantilevered elastic contact portion 18 bent at an acute angle from the front end of the fixed portion 17 and inclined toward the rear wall 14, and bent at a substantially right angle from the rear end of the fixed portion 17 And a lead portion 19 protruding outward from the right wall 13. The contact pin 6b has the same structure, but the length of the fixing portion 17 is set slightly shorter than that of the contact pin 6a. As a result, the lead portions 19 of the contact pins 6a and 6b are shifted from each other back and forth.

The base 18a of the elastic contact portion 18 is
Is guided by a guide groove 20 provided astride the front end face 13a and the inner face 13b. A bent portion 18b is provided at the tip of the elastic contact portion 18, and the bent portion 18b is guided by a guide groove 21 provided in the rear wall 14 and extends in the lateral direction, so that it can slide in the lateral direction. ing.
Similarly, the second contact pin group 7 has two types of four contact pins 7a and 7b alternately arranged vertically.
The contact pin 7a is fixedly inserted into a fixed hole 22 penetrating the left wall 12 back and forth.
A cantilevered elastic contact portion 24 which is bent at an acute angle from the front end thereof and extends obliquely toward the rear wall 14;
3 and a lead portion 25 that is bent at a substantially right angle from the rear end and protrudes outward from the left wall 12. The contact pin 7b has the same structure, but the length of the fixing portion 23 is set slightly shorter than that of the contact pin 7a. As a result, the lead portions 25 of both contact pins 7a and 7b are shifted in position from front to back.

The base 24a of the elastic contact portion 24 is
Is guided by a guide groove 26 provided astride the front end face 12a and the inner face 12b. A bent portion 24b is provided at the tip of the elastic contact portion 24, and the bent portion 24b is guided by a horizontally extending guide groove 27 provided in the rear wall 14 so as to be slidable in the lateral direction. I have. Referring to FIG. 5 which is a cross-sectional view taken along the line VV in FIGS. 4 and 3, the movable partition wall 9 includes a pair of fixed partition walls 1.
A pair of arms 28, 28 respectively extending along the opposing surfaces 15 a, 15 a, and a connecting portion 29 connecting the rear portions of the arms 28, 28 have a substantially U-shaped shape that opens forward. The main body 30 is provided.

Referring to FIGS. 3, 4 and 5, connecting portion 29 has a cylindrical shape guided by guide grooves 31 formed to extend in the lateral direction on opposed surface 15a of each fixed partition wall 15. The first guided projection 32 is formed so as to protrude. The distal ends of the arms 28 are bent outward at substantially right angles to engage with the corresponding front end surfaces 15b of the fixed partition walls 15, and are guided by the front end surfaces 15b to slide in the lateral direction. A hook-shaped second guided projection 33 is provided.

As shown in FIG. 2A, when viewed from the direction in which the arms 28 face each other, each arm 28 has a narrow portion 34 at an intermediate portion in the front-rear direction. The first and second engaging portions 35 and 36 extend from the portion to both lateral sides and form a substantially T-shape with the narrow portion 34. The first engaging portion 35 engages with the engaging step 52 of the engaging lever 51 of the telephone line modular plug 50 inserted into the first insertion recess 4 as shown in FIG. Further, the second engagement portion 36 engages with an engagement lever of a modular plug (not shown) inserted into the second insertion recess 5.

At the front edges of the engaging portions 35, 36, inclined cam surfaces 37, 38 for sliding the movable partition wall 9 in contact with the corresponding modular plugs to be inserted are formed, respectively. For example, as shown in FIG. 7, the cam surface 37 comes into contact with the base end of the engagement lever 51 of the modular plug 50 to be inserted into the first insertion recess 4 along the direction of the white arrow. It functions to automatically move the movable partition wall 9 toward the second insertion recess 5 (the direction indicated by the black arrow). Similarly, the cam surface 38 comes into contact with the engaging lever of the corresponding modular plug, and
Automatically moves to the first insertion recess 4 side.

When a two-core modular plug for a telephone line is inserted into the first insertion recess 4, as shown in FIG. 5 by a predetermined stroke, or by automatically displacing at the time of insertion as described above,
The entrance of the second insertion recess 5 is narrowed by 6 so that the insertion of the 8-core modular plug for the LAN line is prevented. Conversely, when inserting an 8-core modular plug for a LAN line into the second insertion recess 5, FIG.
(B) As shown in FIG.
Is displaced by a predetermined stroke toward the first insertion recess 4 side, or is automatically displaced upon insertion as described above,
The entrance of the first insertion recess 4 is narrowed by the first engagement portion 35, whereby the two-core modular plug 5 for the telephone line is formed.
A state where insertion of 0 is prevented is set.

In this embodiment, for example, a two-core plug from a normal telephone line and an eight-core plug for LAN can be inserted and removed by laying it out horizontally on a notebook computer or the like. The contact pin groups 6 and 7 of the insertion recesses 4 and 5 are arranged along the lateral direction, so that the height can be reduced. Further, since the contact pin groups 6 and 7 are arranged on the left wall 12 and the right wall 13 opposite to each other with the partition walls 15 and 16 interposed therebetween, the thickness of the partition walls 15 and 16 can be reduced. In combination with the casing 2, the size in the horizontal direction can be reduced.
As a result, the mounting area can be kept small, which can contribute to the miniaturization and thinning of a notebook computer or the like.

In particular, a pair of insertion recesses 4 and 5 arranged in the lateral direction of the single casing 2 can be used alternatively, and the interval between the insertion recesses on the side where use is prohibited is reduced. Therefore, as compared with the case where the insertion recesses of the normal size are simply arranged side by side, the size can be reduced in the horizontal direction and the mounting area can be further reduced. On the other hand, when both the insertion recesses 4 and 5 are opened and the movable partition wall 9 is in a free state, if a modular plug corresponding to one of the insertion recesses 4 and 5 is to be inserted, an engagement corresponding to the modular plug is made. The cam surfaces 37, 38 of the mating portions 35, 36 abut, and the movable partition wall 9 is automatically moved to the other insertion recess 5 or 4 side. Therefore, workability is good.

The present invention is not limited to the above embodiment. For example, the number of poles of the contact pins arranged in the insertion recesses 4 and 5 may be changed to another combination. In addition, various changes can be made within the scope of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a composite modular jack according to an embodiment of the present invention.

FIGS. 2A and 2B are cross-sectional views of the composite modular jack showing a state where use of each insertion recess is prevented.

FIG. 3 is a bottom view of the composite modular jack.

FIG. 4 is a schematic perspective view of a movable partition wall.

FIG. 5 is a sectional view taken along the line VV in FIG. 3;

FIG. 6 is a cross-sectional view of a composite modular jack schematically showing a state where a modular jack corresponding to a first insertion concave portion is inserted.

FIG. 7 is a schematic view of a main part of the modular jack and the movable partition wall, showing a state in which an engagement lever of the modular jack and a cam surface of the movable partition wall interfere with each other to move the movable partition wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Composite modular jack 2 Casing 3 Front surface 4 First insertion recess 5 Second insertion recess 6 First contact pin group 6a, 6b Contact pin 7 Second contact pin group 7a, 7b Contact pin 8 Main body 9 Movable partition wall 15 Fixed partition wall 28 Arm part 29 Connecting part 31 Guide groove 32 First guided protrusion 33 Second guided protrusion 35 First engagement part 36 Second engagement part 37, 38 Cam surface 50 Modular jack 51 Engagement lever 52 Engagement step

Claims (3)

[Claims] 1. A single casing, a pair of insertion recesses arranged side by side in front of the casing, for inserting and removing modular plugs having different specifications, and a partition wall for partitioning between the pair of insertion recesses. A composite modular jack comprising: contact pins having different numbers of poles, the contact pins being arranged on opposing walls. 2. The casing includes a main body and a movable portion supported by the main body so as to be freely slidable in the lateral direction and constituting a part of the partition wall. It has a pair of engaging portions for engaging the engaging levers of the plug respectively, and by sliding, the pair of engaging portions are selectively displaced to the corresponding insertion concave side to correspond to the corresponding insertion concave The composite modular jack according to claim 1, wherein insertion of a modular plug is prevented. 3. The composite modular jack according to claim 2, wherein each engaging portion has a cam surface which slides the movable portion by contacting the corresponding modular plug to be inserted.