JP2000048893A - Modular jack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a modular jack which is enhanced in the strength of a terminal support stand by increasing the width size of the terminal support stand. SOLUTION: A housing is provided with a plug connecting table 1 having a plug inserting port to be detachably inserted with a modular plug. Terminals 42 formed of pressure terminals are electrically connected to contacts to be connected to the modular plug. A bearing part 33a is provided on the housing, a rotary shaft 50 provided on a lever 5 is fitted to the bearing part 33a, and the lever 5 is pivotally supported on the housing. A terminal support stand 32 arranged with the terminals 42 is projectingly provided on the housing, and an opening part 57 to be partially inserted with the terminal support stand 32 is formed on one side surface in the lever 5 which faces the terminal support stand 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a modular jack to which a twisted pair cable serving as a transmission path for indoor communication is mainly connected.

[0002]

2. Description of the Related Art Conventionally, when constructing a LAN (local area network) system using Ethernet, four
Twisted pair cables in which an eight-core twisted pair wire is housed in a sheath are widely used (10BASE-T or the like). Twisted pair cables have the advantage that they are relatively inexpensive and flexible, so that they can be easily wired. When connecting twisted pair cables to each other or to other devices,
Modular jacks are often used.

As a modular jack of this type, the one shown in FIGS. 19 to 23 has been proposed (Japanese Patent Application No. Hei 9-117081). The housing 10 of the modular jack includes a plug connection base 1 having a plug insertion port 11 into which a modular plug is removably inserted. A plurality of contacts 41 that can contact the contacts are arranged. A terminal 42 is electrically connected to each contact 41,
Each terminal 42 is arranged so as to protrude from the housing 10 at a portion different from the plug connection base 1.

The terminal 42 is a press contact terminal having a press contact slit 42a, and has a structure in which when an electric wire is press-fitted into the press contact slit 42a, the core wire is sandwiched while cutting the insulating coating on both side edges of the press contact slit 42a. When this type of terminal 42 is used, it is necessary to press-fit the wires in a state where they are aligned with the position of the terminal, and this operation is performed without using a separate tool or jig. Has proposed a configuration in which the lever 5 is pivotally supported at a portion different from the plug connection base 1.

The lever 5 can be raised and lowered between a position where the lever 42 is covered and a position where the terminal 42 is opened. Further, it has a plurality of separation plates 52 located between the wires and a separation hole 54 into which the tip of each wire is inserted, and the separation plates 52 and the separation holes 54 align the wires. A press-fit groove 55 is formed at a position corresponding to the terminal 42 at a position between the separation plate 52 and the separation hole 54 in the lever 5, and by pressing the electric wire before and after the press-fit groove 55 when the lever 5 is tilted. The wire is formed so that the wire can be pressed into the press-contact slit 42 a of the terminal 42.

The terminals 42 project from an upper surface of a terminal support 32 provided on the housing 10, and the lever 5 is formed to cover both side surfaces of the terminal support 32.

[0007]

According to the above construction, the lever 5 is formed so as to cover both side surfaces of the terminal support 32 when the lever 5 is tilted. The width dimension must be smaller than the width dimension of the housing 10 by at least the thickness dimension of the side surface of the lever 5. On the other hand, there is a limitation in widening the left and right width of the housing 10, while the distance between the terminals 42 needs to be relatively large. Of the terminal support 32 becomes thinner, the strength of the terminal support 32 cannot be sufficiently increased, and the terminal support 32 may be damaged when the electric wire is pressed into the terminal 42. Occurs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a modular jack in which the width of a terminal support is made larger than that of a conventional structure to increase the strength of the terminal support. It is in.

[0009]

According to the first aspect of the present invention, there is provided a housing having a plug connection base having a plug insertion port into which a modular plug is removably inserted, and a modular plug inserted into the housing through the plug insertion port. A plurality of contacts arranged in the housing so as to resiliently contact the contacts, and an insulating coating which is electrically connected to each contact and is arranged so as to protrude from the housing at a portion different from the plug connection base. When an electric wire is press-fitted into the press-fitting slit, it is pivotally supported by a plurality of terminals consisting of press-fitting terminals that sandwich the core wire while cutting the insulation coating on both side edges of the press-fitting slit, and a bearing portion provided in a portion of the housing different from the plug connection base. It has a rotating shaft and holds multiple wires connected to each terminal in an aligned form. And a lever to be freely undulating between a position to open position and a terminal press-fitting the electric wire to Tsu bets,
The housing is provided with a terminal support base on which the terminals are lined up,
An opening into which a part of the terminal support is inserted is formed on one side surface of a portion of the lever corresponding to the terminal support.

According to a second aspect of the present invention, in the first aspect of the present invention, the lever is provided with a rotating shaft, and the housing is provided with a bearing portion on which the rotating shaft is pivotally mounted.

According to a third aspect of the present invention, in the first aspect of the present invention, the housing is provided with a rotating shaft, and the lever is provided with a bearing portion on which the rotating shaft is pivotally mounted.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 6, a housing 10 is provided with a plug connection base 1 and a terminal base 2, which are molded products of synthetic resin having insulating properties. Terminal base 2
Holds a conductor 4 (see FIG. 7) that electrically connects the contact 41 and the terminal 42 via the connection conductor 43, and is connected to the plug connection base 1 to constitute a modular jack. The conductors 4 are formed by stamping a sheet metal having elasticity, and eight conductors 4 are held on the terminal base 2. The terminal base 2 is formed of two members, a base 20 and a holder 30, and the holder 30 is adhered to the upper surface of the base 20. Note that, in order to facilitate the description, the upper and lower sides, the left and right sides, and the front and rear sides
The direction in which the terminal 2 protrudes from the terminal base 2 is upward, but this is not intended to limit the mounting direction of the modular jack.

The plug connection base 1 is a hollow body in which a plug insertion opening 11 into which a modular plug is inserted is opened at the upper front, and a mounting hole 12 into which the front end of the terminal base 2 is inserted is opened at the lower rear. There are eight separating slits 13 formed on the rear wall facing the upper edge of the mounting hole 12.

The base 20 has, at its front end, a connecting support piece 21 that contacts the lower surface of the plug connection base 1, and has at its rear end a holding base mounting plate 22 on which the holding base 30 is mounted. On the lower surface of the plug connection base 1, a connecting groove portion 14 having a width substantially corresponding to the left and right width of the connecting support piece 21 is formed, and on the inner bottom surface of the connecting groove portion 14, a substantially T-shaped connecting protrusion 15 is formed. You. The coupling support piece 21 has a substantially T-shaped coupling hole 23 that can be engaged with the coupling projection 15. The coupling hole 23 is provided with a notch groove 23a which is desirably opened at the front edge of the connection support piece 21, and the flexibility of the front end of the connection support piece 21 is improved by the notch groove 23a. Further, on both sides of the base of the connection support piece 21, an insertion locking piece 24 is protruded at a position shifted upward with respect to the connection support piece 21, and the insertion locking piece 24 is provided in a mounting hole formed in the plug connection base 1. 12 below. Thus, the base 20 is temporarily held on the plug connection base 1 by the insertion locking piece 24 being locked inside the plug connection base 1 and the connection support piece 21 abutting against the lower surface of the plug connection base 10. become.

On the other hand, as shown in FIGS. 8 to 10, the holding table 30 has a contact supporting table 31 for holding a contact 41 at a front end, and a terminal supporting table 32 for projecting a terminal 42 to an upper surface. Prepared in the department. The terminal base 2 is located at a position between the contact support 31 and the terminal support 32.
A lever support 33 is protruded from the upper surface of the lever. A positioning groove 34 for positioning the conductor 4 is formed on the front end of the contact support 31 and on the lower surface of the holder 30. Further, the terminal 4 is vertically penetrated through the terminal support 32.
A terminal insertion hole 35 through which the wire 2 is inserted is formed.

Except for one side located on the lower surface side of the plug connection base 1 in the peripheral portion of the base 20, one connecting hook 25 is continuously and integrally provided on each of the remaining three sides.
Further, a coupling groove 37 that engages with the coupling hook 25 is formed in a peripheral portion of the holding table 30. At the upper end of each coupling hook 25, a coupling claw 25a is protruded inwardly of the base 20. Here, when the coupling hook 25 is engaged with the coupling groove 37, the coupling hook 25 comes into contact with the three side surfaces of the holding table 30, and the coupling hook 25 is settled in the coupling groove 37. Is abutted against the plug connection base 1 and is prohibited from moving forward.
As a result, the relative movement of the base 20 and the holding table 30 in a plane along the opposing surface of both is prohibited. In short, the base 20 and the holding table 30 are formed by the connecting hook 25 and the connecting groove 37.
Relative movement is prohibited. The coupling claw 25a locks the upper surface side of the holding table 30 to prohibit the holding table 30 from floating from the base 20. Therefore, the holding table 30 is fixed to the base 20 by the connecting hook 25 and the connecting groove 37.

As described above, the holding table 30 is fixed to the base 20 by the concave and convex engagement of the connecting hook 25 and the connecting groove 37, so that the base 20 and the holding table 30 can be connected without using an adhesive. Is possible. If no adhesive is used, the adhesive does not protrude, and the yield is improved.
Further, as compared with the case where an adhesive is used, a waiting time for waiting for the curing of the adhesive does not occur, and the productivity can be improved. If it is necessary to further increase the bonding strength between the base 20 and the holding table 30, it is possible to use an adhesive together. Even in the case where an adhesive is used in combination, since there is no step of relatively sliding the base 20 and the holding table 30 in the assembly process, it is possible to suppress the adhesive from protruding.

Incidentally, a twisted pair cable is generally connected to the terminal 42 as an electric wire, and the amount of crosstalk between each pair constituting the twisted pair cable is affected by the arrangement of the conductor 4. However, since the arrangement of the contacts 41 and the arrangement of the terminals 42 are fixed, the connection conductors 43 are actually arranged so as to reduce crosstalk. In this case, it is necessary to cross a part of the connection conductor 43, so that a part of the connection conductor 43 is arranged vertically. That is, as shown in FIG.
Part of the connection conductor 43 is arranged in two layers, upper and lower.

In order to arrange the upper and lower layers, it is necessary to form a gap between the opposing surfaces of the base 20 and the holding table 30. Therefore, a protruding base 20a is formed on a part of the upper surface of the base 20 so as to protrude above other parts.
The holding table 30 is placed on the table. With this configuration, the base 20 is formed at a portion where the pedestal 20a is not formed.
A gap is formed between the connection conductor 43 and the holding table 30, and the connection conductor 43 can be formed into two layers. Furthermore, the protruding base 20a extends below the terminal 42, and when the front end surface of the protruding base 20a abuts on the lower end of the terminal 42, the terminal 42 sinks downward when a wire is pressed into the terminal 42. Can be prevented.

To connect the terminal base 2 to the plug connection base 1, the contact support base 31 is inserted into the mounting hole 12 with the base 20 and the holding base 30 connected. Terminal base 2
On both side surfaces of the contact support 31, engagement protrusions 31 a are protruded, and on the inner surface of the plug connection base 1, a terminal guide 2 guides the terminal base 2 in a state of being engaged with the engagement protrusion 31 a. Groove 1
0a is formed. Therefore, when the terminal base 2 is moved forward in a state where the engaging ridges 31a are engaged with the engaging grooves 10a, the holding table 30 is brought into contact with the engaging ridges 31a and the engaging grooves 10a.
a, the base 20 is connected to the connecting support piece 2.
Since the position is regulated by the first groove 1 and the connecting groove 14, the terminal base 2 can be inserted to a predetermined position while regulating the position with respect to the plug connection base 1. When the terminal base 2 is inserted to a fixed position, the lever support 33 formed at an intermediate portion of the terminal base 2 in the front-rear direction comes into contact with the rear surface of the plug connection base 1 so that the plug of the terminal base 2 can be inserted. The amount of insertion into the connection base 1 is regulated.

The coupling projection 1 provided on the plug connection base 1
5, the coupling hole 23 of the base 20 is engaged,
, The rearward movement of the terminal base 2 is prohibited. At this time, the insertion locking piece 24 of the base 20 and the contact support piece 31 of the holder 30 are attached to the mounting hole 12 of the plug connection base 1.
Is inserted into. Here, when a downward force acts on the rear end of the terminal base 2, the connecting support piece 21 tends to move upward with the insertion locking piece 24 as a fulcrum. The upward movement is prohibited because of contact with the lower surface, and as a result, the rear end of the terminal base 2 is prevented from moving downward. When an upward force acts on the rear end of the terminal base 2, the connection support piece 21 tends to move downward with the insertion locking piece 24 as a fulcrum. , So that the rear end of the terminal base 2 is prohibited from moving upward. Although the engaging ridges 31a and the engaging grooves 10a also contribute to the vertical movement of the terminal base 2, the vertical movement is more reliably controlled by the above-described operation. In short, the plug connection base 1 and the terminal base 2 are joined by partially engaging each other, but are firmly joined so as to prevent rattling.

By the way, the contact 41 is arranged on the contact support base 31 so as to extend from the front end to the rear upper side.
When the contact support 31 of the terminal base 2 is inserted into the plug connection base 1, each contact 41 is connected to each of the separation slits 13.
To each contact 4 by each separation slit 13.
1 is guided. With the terminal base 2 connected to the plug connection base 1, the rear end of the contact 41
3 are kept inserted, and the contacts 41 are separated so as not to contact each other. Thus, contact 4
By inserting the plug 1 into the plug connection base 1, the contact 41 can elastically contact the contact of the modular plug inserted into the plug connection base 1 through the plug insertion port 11.

The modular jack shown in the figure is for connecting a 4 to 8 core twisted pair cable 1, and eight conductors 4 are held on a terminal base 2. Each conductor 4
The terminal 42 provided in the terminal 30 is provided in the terminal insertion hole 35 provided in the holder 30.
Is inserted from below and protrudes from the upper surface of the terminal support 32,
It is arranged in two rows before and after. The terminal 42 is of a pressure contact type formed in a fork shape having a pressure contact slit 42a having an open upper end edge between a pair of teeth.
Is set so that both side edges of the pressure contact slit 42a are pressed against the core wire of the electric wire to be connected. That is, when an electric wire having an insulating coating is press-fitted into the press-fitting slit 42a from above, the insulating coating of the electric wire is cut at both side edges of the press-fitting slit 42a, and the press-fitting slit 42a is peeled off while removing the insulating coating.
The core wire is introduced into the inside, and the core wire is sandwiched between both side edges of the press contact slit 42a. This terminal is a well-known terminal called an IDC terminal. In the illustrated example, in order to connect the wires to the terminal 42 without using a separate tool or jig, an alignment function for holding a plurality of wires together and a press-fitting function for press-fitting the wires into the press-fitting slit 42a of the terminal 42. A pair of levers 5 of a synthetic resin molded product having
Is provided. Although both levers 5 are formed in different shapes, they are formed in shapes that are symmetric on the left and right. FIG.
FIG. 13 shows the right lever 5, and FIGS. 14 to 16 show the left lever 5. However, since both levers 5 are formed symmetrically as described above, in the following, one lever 5 will be described.
Will be described only.

The lever 5 is pivotally supported via a rotary shaft 50 to a bearing 33a formed continuously and integrally with each lever support 33. The rotating shaft 50 is fixed through a shaft hole 51 provided in the lever 5, and together with the lever 5, a bearing 33 a
Rotate against. That is, the lever 5 is connected to the bearing 33a.
, And can be raised and lowered between a position where the terminal base 2 is covered and a position where the terminal base 2 is opened. The bearing 33a is open on the rear side.

Here, the maximum angle at which the lever 5 is raised is restricted by the contact between the lever 5 and the plug connection base 1 as shown in FIG. That is, when the lever 5 is raised on the plug connection base 1, the portion where the lever 5 comes into contact (that is, the upper part of the rear surface of the plug connection base 1) is the inclined surface 10 b that is inclined backward and downward. The upper surface of the terminal base 2 is opened sufficiently widely. Since the inclined surface 10b is formed on the upper rear surface of the plug connection base 1, the rotation range of the lever 5 can be increased, and when the lever 5 is raised, the rear surface of the lever 5 is connected to the terminal base. It can be made substantially perpendicular to the upper surface of the table 2. Also, lever 5
The upper surface of the lever 5 in a state in which the lever 5 is tilted (the state of the solid line in FIG. 2) is bent so as to protrude upward at an intermediate portion between the front and rear, and when the lever 5 is raised, the upper portion of the above-described inclined surface 10b is supported as a fulcrum. The rotation shaft 50 can be detached from the bearing portion 33a. Thus, lever 5
When the lever 5 is removed, a portion relatively far from the rotation shaft 50 can be used as a fulcrum, so that the operation of removing the lever 5 becomes easy. Note that a bearing portion may be formed on the lever 5 and a rotating shaft may be formed on the housing 10.

The terminal support 3 of the lever 5
On one surface of the second side, three separating plates 52 for separating and holding the electric wires connected to the respective terminals 42 are provided in a protruding manner. Separation passages through which the electric wires pass are formed between each side wall of the lever 5 and the separation plate 52 or between adjacent separation plates 52.
Each separation passage is provided with a projection (not shown) for retaining so as to hold the electric wire. Further, a separation hole 54 for separating and holding the distal end of the electric wire is formed in a portion of the lever 5 near the rotation shaft 50. Therefore, the electric wires can be aligned between the separation passage and the separation hole 54. Since the operation of aligning the wires is performed before connecting the wires to the terminals 42, the lever 5 is raised at this time, and the rear surface when the lever 5 is raised as described above is placed on the upper surface of the terminal base 2. Since it is largely open substantially perpendicular to the opening, it is easy to pass the electric wire through the separation passage and the separation hole 54.

On the other hand, the lever 5 has a separation passage and a separation hole 5.
As shown in FIG. 17, two press-fitting grooves 55 running in the axial direction of the rotating shaft 50 are formed at a portion between the two grooves. Each press-fit groove 5
Reference numeral 5 denotes a terminal 4 when the lever 5 approaches the terminal base 22.
2 is formed so that the front end thereof is inserted, and the electric wire is pressed against the terminal 42 before and after the press-fit groove 55. In short, when the lever 5 approaches the terminal base 2 with the electric wire held by the lever 5, the electric wire is inserted into the press-fit groove 55.
The wire is pressed into the press-contact slit 42a of the terminal 42 by being pressed before and after the contact.

By the way, in the lever 5, the terminal support 3
An opening 57 into which a part of the terminal support 32 is inserted is formed on one side surface of the portion corresponding to 2. this is,
This is to allow the left and right widths of the terminal support 32 to be larger than when the terminal support 32 is placed between both side surfaces of the lever 5. That is, by forming the opening 57 on one side surface of the lever 5 as in the above configuration, it becomes possible to widen the left-right width of the terminal support 32 within the limited left-right width of the terminal base 2. Thus, the strength of the terminal support 32 can be improved.

When the lever 5 is tilted, the terminal base 2
(Holding stand 30) Locking hook 36 erected on the rear surface
Engages with a locking claw 56a at the distal end of a movement restricting piece 56 extending to the side of the lever 5 to prevent the lever 5 from being easily opened. That is, since the lever 5 has the function of holding down the electric wire as described above, by preventing the lever 5 from being opened, it is difficult for the lever 5 to come off from the terminal 42 even when an external force acts on the electric wire. Also, lever 5
When the lever is depressed, the lower surface of the movement restricting piece 56 comes into contact with the upper surface of the base 38 projecting from the upper surface of the terminal base 2, and the movement of the lever 5 is restricted. That is, if a large force is applied to the lever 5 when the lever 5 is tilted when the movement restricting piece 56 is not provided, the bearing portion 33a may be damaged. Can be received by the movement restricting piece 56 by contacting a part of the bearing part 33, thereby preventing the bearing 33a from being damaged.

[0030]

According to the first aspect of the present invention, there is provided a housing having a plug connection base having a plug insertion port into which a modular plug is removably inserted, and a contact of the modular plug inserted into the housing through the plug insertion port. A plurality of contacts arranged in the housing so as to be in elastic contact with each other, and electric wires which are electrically connected to the respective contacts and which are arranged so as to protrude from the housing at a portion different from the plug connection stand and have an insulating coating are pressed into the slit It is equipped with a plurality of terminals consisting of press contact terminals that sandwich the core wire while cutting the insulation coating on both side edges of the press contact slit when press-fitting, and a rotating shaft that is pivotally supported by a bearing part provided in a different part of the housing from the plug connection base. To hold the multiple wires connected to each terminal in an aligned form, and cover the terminals with the wires in the insulation displacement slits. A lever which can be freely raised and lowered between a position where the terminal is inserted and a position where the terminal is opened. An opening into which a part of the terminal support is inserted is formed on the side surface of the terminal support, and a part of the terminal support is provided while aligning the wires and providing a lever for pressing the wires into the terminals. Can be inserted into the opening of the lever, so that the dimensions of the terminal support can be made relatively large. In other words, if the arrangement interval of the terminals is the same, it is possible to increase the thickness of the peripheral portion of the terminal support as compared with the case where the opening is not provided, so that the strength of the terminal support can be increased. As a result, there is an advantage that the terminal support can be prevented from being damaged by a force acting when the electric wire is pressed into the terminal.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing Embodiment 1 of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a bottom view of the above.

FIG. 5 is a front view of the same.

FIG. 6 is a rear view of the same.

FIG. 7 is an exploded perspective view of an essential part of the embodiment.

FIG. 8 is a side view showing the holding table used in the above.

FIG. 9 is a plan view showing a holding table used in the above.

FIG. 10 is a front view showing a holding table used in the above.

11A and 11B show the right lever used in the above, (a) is a plan view, (b) is a front view, (c) is a rear view, (d) is a right side view, (e) is a left side view, (f) is a bottom view.

FIG. 12 is a longitudinal sectional view showing a right lever used in the same.

FIG. 13 shows a right lever used in the embodiment, and FIG.
It is XX sectional drawing in (f).

14 (a) is a plan view, FIG. 14 (b) is a front view, FIG. 14 (c) is a rear view, FIG. 14 (d) is a right side view, FIG. 14 (e) is a left side view, (f) is a bottom view.

FIG. 15 is a longitudinal sectional view showing a left lever used in the above.

FIG. 16 is a cross-sectional view showing a left lever used in the above.

FIG. 17 is a sectional view of a main part of the above.

FIG. 18 is a side view of a main part of the above.

FIG. 19 is an exploded perspective view showing a conventional example.

FIG. 20 is a longitudinal sectional view of the same.

FIG. 21 is a partially broken plan view of the same.

FIG. 22 is an exploded side view of the same.

FIG. 23 is an exploded perspective view of a main part of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plug connection stand 2 Terminal base 5 Lever 10 Housing 11 Plug insertion port 32 Terminal support 33a Bearing 41 Contact 42 Terminal 42a Pressure contact slit 50 Rotation axis 57 Opening

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazuo Nakai, Inventor Kazuma, Kazuma, Osaka 1048, Matsushita Electric Works, Ltd. F-term (reference) 5E012 AA03 AA32 AA44

Claims (3)

[Claims] 1. A housing having a plug connection base having a plug insertion port into which a modular plug is removably inserted, and a housing inside the housing so as to resiliently contact a contact of the modular plug inserted into the housing through the plug insertion port. When a plurality of arranged contacts and electric wires that are electrically connected to the respective contacts and are arranged in a form different from the plug connection stand and protrude from the housing and have an insulating coating are pressed into the press contact slits, both sides of the press contact slits It has a plurality of terminals consisting of pressure contact terminals that sandwich the core wire while cutting the insulation coating at the edges, and a rotating shaft that is pivotally supported by a bearing part provided in a different part of the housing from the plug connection base, and is connected to each terminal. Hold the multiple wires in an aligned form, and cover the terminals and position the terminals to press-fit the wires into the insulation displacement slits. A lever that can be raised and lowered between the open position and a terminal support base on which the terminals are arranged in a row, and a terminal support is provided on one side of a portion of the lever corresponding to the terminal support base. A modular jack having an opening into which a part of a base is inserted. 2. The modular jack according to claim 1, wherein the lever is provided with a rotating shaft, and the housing is provided with a bearing portion on which the rotating shaft is pivotally mounted. 3. The modular jack according to claim 1, wherein a rotary shaft is provided on the housing, and a bearing portion on which the rotary shaft is pivotally mounted is provided on the lever.